WO2021131973A1 - Disc brake - Google Patents

Disc brake Download PDF

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Publication number
WO2021131973A1
WO2021131973A1 PCT/JP2020/046980 JP2020046980W WO2021131973A1 WO 2021131973 A1 WO2021131973 A1 WO 2021131973A1 JP 2020046980 W JP2020046980 W JP 2020046980W WO 2021131973 A1 WO2021131973 A1 WO 2021131973A1
Authority
WO
WIPO (PCT)
Prior art keywords
pad
rotor
disc
pair
pads
Prior art date
Application number
PCT/JP2020/046980
Other languages
French (fr)
Japanese (ja)
Inventor
義季 岩橋
Original Assignee
日立Astemo株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 日立Astemo株式会社 filed Critical 日立Astemo株式会社
Priority to DE112020006321.6T priority Critical patent/DE112020006321T5/en
Priority to JP2021567343A priority patent/JP7241922B2/en
Priority to CN202080089766.5A priority patent/CN114901963A/en
Publication of WO2021131973A1 publication Critical patent/WO2021131973A1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D55/00—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
    • F16D55/02—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members
    • F16D55/22—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads
    • F16D55/228—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a separate actuating member for each side
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/02—Braking members; Mounting thereof
    • F16D65/04—Bands, shoes or pads; Pivots or supporting members therefor
    • F16D65/092—Bands, shoes or pads; Pivots or supporting members therefor for axially-engaging brakes, e.g. disc brakes
    • F16D65/095—Pivots or supporting members therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/02—Braking members; Mounting thereof
    • F16D65/04—Bands, shoes or pads; Pivots or supporting members therefor
    • F16D65/092—Bands, shoes or pads; Pivots or supporting members therefor for axially-engaging brakes, e.g. disc brakes
    • F16D65/095—Pivots or supporting members therefor
    • F16D65/097—Resilient means interposed between pads and supporting members or other brake parts
    • F16D65/0973—Resilient means interposed between pads and supporting members or other brake parts not subjected to brake forces
    • F16D65/0974—Resilient means interposed between pads and supporting members or other brake parts not subjected to brake forces acting on or in the vicinity of the pad rim in a direction substantially transverse to the brake disc axis
    • F16D65/0977—Springs made from sheet metal
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D55/00—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
    • F16D2055/0004—Parts or details of disc brakes
    • F16D2055/0016—Brake calipers

Definitions

  • the present invention relates to a disc brake for braking a vehicle such as a two-wheeled vehicle or a four-wheeled vehicle.
  • a vehicle such as a two-wheeled vehicle or a four-wheeled vehicle.
  • the present application claims priority based on Japanese Patent Application No. 2019-233896 filed in Japan on December 25, 2019, the contents of which are incorporated herein by reference.
  • Some disc brakes have a structure in which a space that opens in the rotor radial direction is provided in the caliper body and pads are arranged in this space (see, for example, Patent Document 1 below).
  • Disc brakes are required to be miniaturized.
  • an object of the present invention is to provide a disc brake that can be miniaturized.
  • the disc brake according to the first aspect includes a pair of pads for pressing the disc rotor; a pad assembly space arranged straddling the disc rotor and opening in the rotor radial direction, and a pad assembly space.
  • a caliper body having a pair of pad sliding portions that slidably support the pair of pads in the rotor axial direction; on both sides in the rotor axial direction; The total length of either one of the pad sliding portions and the pad assembling space is shorter than the thickness of two of the pads, and the disc rotor side of one of the pair of pad sliding portions.
  • the disc brake according to the second aspect includes a pair of pads for pressing the disc rotor; a pad assembly space arranged straddling the disc rotor and opening in the rotor radial direction, and a pad assembly space.
  • a caliper body having a pair of pad sliding portions that slidably support the pair of pads in the rotor axial direction on both sides in the rotor axial direction; The total length of either one of the pad sliding portions and the pad assembling space is shorter than the thickness of two of the pads, and the disc rotor side of one of the pair of pad sliding portions.
  • FIG. 1 It is a top view which shows the disc brake which concerns on one Embodiment of this invention. It is a figure which looked at the disc brake of the same embodiment from the arrow view II of FIG. It is a figure which looked at the disc brake of the same embodiment from the arrow view III of FIG. It is a bottom view which shows the disc brake of the same embodiment. It is sectional drawing which looked at the disc brake of the same embodiment by VV line of FIG. It is a figure which looked at the disc brake of the same embodiment from the arrow view VI of FIG. It is a figure which looked at the disc brake of the same embodiment from the arrow view VII of FIG. It is a top view which shows the relationship between the pad and the main part of the caliper body of the disc brake of the same embodiment.
  • the disc brake 10 of the present embodiment is an opposed piston type disc brake used for front wheel braking of a motorcycle.
  • the present invention is not limited to this, and of course, it can be applied to, for example, a disc brake for rear wheel braking of a motorcycle or a disc brake for braking a four-wheeled vehicle.
  • the disc brake 10 of the present embodiment includes a caliper 12 that imparts frictional resistance to a disc-shaped disc rotor 11 that rotates together with a wheel (not shown) that is a braking target.
  • the caliper 12 is attached to the vehicle body side.
  • the radial direction of the disc rotor 11 is referred to as the rotor radial direction
  • the central axis of the disc rotor 11 is referred to as the rotor axis
  • the extending direction of the rotor axis is referred to as the rotor axial direction.
  • the direction of rotation (circumferential direction) is called the rotor rotation direction.
  • the inlet side in the rotation direction R of the disc rotor 11 when the vehicle is moving forward is referred to as a rotor entry side
  • the exit side is referred to as a rotor exit side.
  • the center side of the disc rotor 11 in the rotor radial direction is referred to as the inside in the rotor radial direction, and the side opposite to the center of the disc rotor 11 is referred to as the outside in the rotor radial direction.
  • the side opposite to the wheels in the rotor axis direction is referred to as the outer side, and the wheel side (inside in the vehicle width direction) is referred to as the inner side.
  • the caliper 12 includes a caliper main body 15 arranged so as to straddle the outer peripheral side of the disc rotor 11 and fixed to the vehicle body side, and a pair of pistons 16 housed in the caliper main body 15 and having the same shape as each other as shown in FIG. , A pair of pistons 17 housed in the caliper body 15 and having the same shape as each other.
  • the piston 16 and the piston 17 have the same shape as each other.
  • the pair of pistons 16 and the pair of pistons 17 have their respective central axes aligned with the rotor axis direction, and are all arranged at equidistant positions from the rotor axis.
  • a line that passes through the rotor axis of the disc rotor 11 and the center of the caliper body 15 in the rotor rotation direction and along the rotor radial direction is referred to as a radial reference line.
  • the extending direction of this radial reference line is referred to as the reference line direction.
  • the radial reference line is orthogonal to the rotor axis.
  • the caliper body 15 has a mirror-symmetrical shape with respect to a surface including a rotor axis and a radial reference line.
  • the caliper 12 is provided with a pair of pistons 16 on both sides in the rotor axial direction with respect to the disc rotor 11 so as to align the positions in the rotor radial direction and the rotor rotation direction. Further, the caliper 12 is provided with a pair of pistons 17 on both sides in the rotor axial direction with respect to the disc rotor 11 so as to align the positions in the rotor radial direction and the rotor rotation direction.
  • the pair of pistons 16 are provided on the disc feeding side of the pair of pistons 17.
  • the pair of pistons 16 and the pair of pistons 17 are arranged at positions equidistant from the center of the caliper body 15 in the rotor rotation direction, in other words, at positions equidistant from the radial reference line.
  • the caliper 12 is provided with one piston 16 and one piston 17 arranged side by side at a predetermined interval in the rotor rotation direction on one side of the disc rotor 11 in the rotor axial direction. Then, such a configuration is provided on both sides in the rotor axial direction so as to face each other. Therefore, the caliper 12 is an opposed piston type 4-pot caliper.
  • the number of pistons may be at least one pair with the disc rotor 11 interposed therebetween, and may be three pairs or four pairs in addition to the above two pairs. Further, the number of pistons may be different from each other between both sides of the disc rotor 11 in the rotor axial direction, such as a combination of one and two, or a combination of two and three. Further, the diameters of the pistons may be different from each other between the rotor turning side and the rotor turning side.
  • the caliper main body 15 includes an outer cylinder portion 21 arranged on the outer side of the disc rotor 11 in the rotor axial direction, and an inner cylinder portion 22 arranged on the inner side of the disc rotor 11.
  • the outlet side connecting portion 23 that connects the ends of the outer cylinder portion 21 and the inner cylinder portion 22 on the rotor return side, and the rotor entry side of the outer cylinder portion 21 and the inner cylinder portion 22. It has a turn-in side connecting portion 24 for connecting the end portions, and an intermediate connecting portion 25 for connecting the intermediate portions of the outer side cylinder portion 21 and the inner side cylinder portion 22 in the rotor rotation direction.
  • the feeding side connecting portion 23, the feeding side connecting portion 24, and the intermediate connecting portion 25 are all arranged so as to straddle the disc rotor 11 on the outer side in the rotor radial direction.
  • the caliper body 15 connects the outer cylinder portion 21 and the inner cylinder portion 22 across the disc rotor 11 at the ends of the pair of outer cylinder portions 21 and the inner cylinder portions 22 in the rotor rotation direction.
  • It has an intermediate connecting portion 25 that connects 21 and an inner cylinder portion 22;
  • the caliper body 15 is a monoblock caliper in which the outer side cylinder part 21, the inner side cylinder part 22, the feeding side connecting part 23, the turning side connecting part 24, and the intermediate connecting part 25 are formed of an integral casting. Therefore, the outer side cylinder portion 21 and the inner side cylinder portion 22 are integrally formed via the feeding side connecting portion 23, the turning side connecting portion 24, and the intermediate connecting portion 25.
  • the outer cylinder portion 21 is arranged so as to face the outer side surface of the disc rotor 11.
  • the outer cylinder portion 21 has a mounting boss portion 34 arranged on the rotation side connecting portion 23 side, which is one end in the rotor rotation direction, and the other end in the rotor rotation direction. It has a mounting boss portion 35 arranged on the entry side connecting portion 24 side.
  • the outer cylinder portion 21 has a long shape along the rotor rotation direction in order to accommodate the plurality of pistons 16 and 17 side by side in the rotor rotation direction.
  • the outer cylinder portion 21 is formed with two cylinder bores 38 and 39 that accommodate the pistons 16 and 17 so as to be movable along the rotor axial direction, side by side in the rotor rotation direction.
  • the cylinder bores 38 and 39 have the same diameter as each other and are formed along the rotor axial direction.
  • the cylinder bores 38 and 39 are arranged such that the cylinder bore 38 accommodating the piston 16 is arranged on the exit side connecting portion 23 side in the rotor rotation direction and the cylinder bore 39 accommodating the piston 17 is arranged on the enter side connecting portion 24 side in the rotor rotation direction. Has been done.
  • the cylinder bores 38 and 39 are open on the disc rotor 11 side and closed on the side opposite to the disc rotor 11 in the rotor axial direction.
  • the cylinder bores 38 and 39 are arranged equidistant from the center of the caliper main body 15 in the rotor rotation direction, in other words, equidistant from the radial reference line.
  • a supply / discharge port 41 is formed at the center position of the outer cylinder portion 21 in the rotor rotation direction.
  • the supply / discharge port 41 supplies / discharges the brake fluid to the cylinder bores 38 and 39 shown in FIG.
  • the air supply / discharge port 41 is formed parallel to the radial reference line.
  • a mount hole 44 is formed in the mounting boss portion 34 so as to penetrate in the rotor radial direction.
  • a mounting hole 45 is formed in the mounting boss portion 35 so as to penetrate in the rotor radial direction.
  • These mount holes 44 and 45 are parallel to the radial reference line, and are equidistant from the center of the caliper body 15 in the rotor rotation direction, in other words, equidistant from the radial reference line. It is formed by aligning the positions in the directions.
  • the caliper 12 is a so-called radial mount type that is fixed to the vehicle body side by mounting bolts (not shown) that are inserted into these mount holes 44 and 45.
  • a bleeder boss portion 49 to which a bleeder plug 48 for bleeding air is attached is formed on the feeding side connecting portion 23.
  • the caliper main body 15 is arranged on the rear side of the disc rotor 11 in the vehicle front-rear direction with the feeding side connecting portion 23 on which the bleeder boss portion 49 is formed is arranged on the upper side in the vertical direction. Therefore, when the vehicle is traveling forward, the disc rotor 11 moves from the bottom to the top in the vertical direction with respect to the caliper main body 15.
  • the inner cylinder portion 22 is arranged so as to face the inner side surface of the disc rotor 11. As shown in FIG. 3, the inner cylinder portion 22 has a long shape along the rotor rotation direction in order to accommodate the plurality of pistons 16 and 17 side by side in the rotor rotation direction.
  • the inner cylinder portion 22 is formed with two cylinder bores 58 and 59, which accommodate the pistons 16 and 17 so as to be movable in the rotor axial direction, side by side in the rotor rotation direction.
  • the cylinder bore 58 accommodating the piston 16 is arranged on the rotation side connecting portion 23 side in the rotor rotation direction.
  • the cylinder bore 59 accommodating the piston 17 is arranged on the entry side connecting portion 24 side in the rotor rotation direction.
  • the cylinder bores 58 and 59 are open on the disc rotor 11 side in the rotor axial direction, and the side opposite to the disc rotor 11 is closed.
  • the cylinder bores 58 and 59 are arranged equidistant from the center of the caliper main body 15 in the rotor rotation direction, in other words, equidistant from the radial reference line.
  • the outer cylinder portion 21 shown in FIGS. 1, 2, 4, and 6 and the inner cylinder portion 22 shown in FIGS. 1, 3, 4, and 6 are in the rotor rotation direction of each other. And the positions in the rotor radial direction are overlapped and arranged so as to face each other in the rotor axial direction.
  • the cylinder bore 38 shown in FIG. 2 is formed coaxially with the cylinder bore 58 shown in FIG.
  • the cylinder bore 39 shown in FIG. 2 is formed coaxially with the cylinder bore 59 shown in FIG.
  • the turn-out side connecting portion 23 has a pad sliding portion 32A, a pad sliding portion 33B, and a support connecting portion 51 on the turn-in side connecting portion 24 side in the rotor rotation direction. ..
  • the pad sliding portion 32A is arranged on the outer side of the disc rotor 11.
  • the pad sliding portion 33B is arranged on the inner side of the disc rotor 11.
  • the support connecting portion 51 is provided between the pad sliding portion 32A and the pad sliding portion 33B so as to connect them.
  • the pad sliding portion 32A and the pad sliding portion 33B have a mirror-symmetrical shape.
  • the turn-in side connecting portion 24 has a pad sliding portion 32B and a pad sliding portion 33A on the turn-out side connecting portion 23 side in the rotor rotation direction.
  • the pad sliding portion 33A is arranged on the outer side of the disc rotor 11.
  • the pad sliding portion 32B is arranged on the inner side of the disc rotor 11.
  • the pad sliding portion 33A and the pad sliding portion 32B have a mirror-symmetrical shape.
  • the caliper main body 15 has a pad assembling space 52 that penetrates between the pad sliding portion 33A and the pad sliding portion 33B in the rotor radial direction.
  • the pad assembly space 52 is open to the outside and inside in the rotor radial direction and to the rotor rotation side.
  • the caliper main body 15 is provided with a pair of pad sliding portions 33A and 32B on both sides of the pad assembly space 52 in the rotor axial direction.
  • the feeding side connecting portion 23 has pad sliding portions 32A and 33B on both sides of the disc rotor 11 in the rotor axial direction.
  • the entry-side connecting portion 24 has pad sliding portions 32B and 33A on both sides of the disc rotor 11 in the rotor axial direction.
  • the feeding side connecting portion 23 and the turning side connecting portion 24 are provided with four pad sliding portions 32A, 33B, 32B, 33A.
  • the feeding side connecting portion 23 has a supporting connecting portion 51 in which the disc rotor 11 and the position in the rotor axial direction are overlapped with each other.
  • the entry-in side connecting portion 24 has a pad assembly space 52 in which the disc rotor 11 and the position in the rotor axial direction are overlapped with each other.
  • the pad sliding portions 32A and 33B and the support connecting portion 51 are arranged on the rotor rotation side with respect to the pad sliding portions 32B and 33A.
  • the pad sliding portion 32A, the support connecting portion 51, and the pad sliding portion 33B are continuous in the rotor axial direction by superimposing the positions in the rotor rotation direction and the rotor radial direction.
  • the pad sliding portion 33A and the pad sliding portion 32B face each other in the rotor axial direction by overlapping the positions in the rotor rotation direction and the rotor radial direction.
  • the disc rotor 11 is arranged between the pad sliding portion 32A and the pad sliding portion 33A and the pad sliding portion 32B and the pad sliding portion 33B.
  • the support connecting portion 51 connects the pad sliding portion 32A and the pad sliding portion 33B on the outer side in the rotor radial direction of the disc rotor 11.
  • the pad assembly space 52 is arranged between the pad sliding portion 32B and the pad sliding portion 33A on the outer side in the rotor radial direction of the disc rotor 11.
  • the caliper body 15 is surrounded by an outer cylinder portion 21, an inner cylinder portion 22, pad sliding portions 32A, 32B, 33A, 33B and a support connecting portion 51, and opens substantially in the center on both sides in the rotor radial direction.
  • a pad arrangement space 61 is formed.
  • the entire pad arrangement space 61 is open inside in the radial direction of the rotor.
  • the intermediate connecting portion 25 is provided at the center position of the caliper main body 15 in the rotor rotation direction.
  • the intermediate connecting portion 25 is provided with a pad arrangement space 61 straddling the rotor axial direction on the outer side in the rotor radial direction.
  • the outer side of the pad arrangement space 61 in the rotor radial direction is the pad sliding portions 32A and 33B on the rotor rotating side and the portion between the support connecting portion 51 and the intermediate connecting portion 25; the pad sliding portion on the rotor rotating side.
  • the portion between 33A and 32B and the intermediate connecting portion 25; is open.
  • the pad assembly space 52 between the pad sliding portion 33A and the pad sliding portion 32B opens into the pad arrangement space 61 and is connected to the pad arrangement space 61.
  • the pad assembly space 52 has a shape that is recessed from the center of the pad arrangement space 61 in the rotor axial direction toward the rotor entry side.
  • the cylinder bores 38, 39, 58, 59 shown in FIGS. 2 and 3 are open to the pad arrangement space 61 shown in FIG.
  • the disc rotor 11 crosses the central position of the pad arrangement space 61 in the rotor axial direction in the rotor rotation direction.
  • the outer side cylinder portion 21, the inner side cylinder portion 22, the feeding side connecting portion 23, the turning side connecting portion 24, and the intermediate connecting portion 25 shown in FIG. 1 are on the inner side shown in FIG.
  • the cylinder portions 22 are integrally molded by casting. Then, the inner surfaces of the cylinder bores 38, 39, 58, 59 are machined through the cast openings at the bottoms of the two cylinder bores 58, 59 of the inner cylinder portion 22.
  • the caliper main body 15 is formed by joining a separate closing member to the opening at the bottom of the cylinder bores 58 and 59 of the inner cylinder portion 22 by friction stir welding to close the opening and form the bottom. Will be done.
  • the outer cylinder portion 21, the inner cylinder portion 22, the feeding side connecting portion 23, the turning side connecting portion 24, and the intermediate connecting portion 25 are integrally molded by casting, and further, the outer cylinder portion 21 and the outer connecting portion 21 and the intermediate connecting portion 25 are integrally molded.
  • the inner surface of the cylinder bores 38, 39, 58, 59 may be machined from the pad arrangement space 61 between the inner cylinder portions 22.
  • the pad sliding portion 32B on the inner side of the entry side connecting portion 24 includes a torque receiving surface 71B facing the pad arrangement space 61 side and a rotor facing surface 72B facing the disc rotor 11 side.
  • a locking surface portion 73B that faces the rotor radial direction and the rotor rotation side is formed.
  • the torque receiving surface 71B is a flat surface extending parallel to the radial reference line, and extends parallel to the rotor axis.
  • the torque receiving surface 71B forms a pad arrangement space 61.
  • the rotor facing surface 72B forms a pad assembly space 52.
  • the rotor facing surface 72B extends perpendicular to the rotor axis.
  • the locking surface portion 73B is a flat surface extending parallel to the rotor axis, and is inclined so as to be farther from the radial reference line toward the outside in the rotor radial direction in the reference line direction.
  • the locking surface portion 73B and the torque receiving surface 71B intersect at an obtuse angle.
  • the entry-side connecting portion 24 is formed with a wall surface portion 74B that rises outward from the inner edge of the locking surface portion 73B in the rotor radial direction and toward the rotor rotation side.
  • the wall surface portion 74B extends substantially orthogonal to the rotor axis.
  • the support connecting portion 51 of the feeding side connecting portion 23 is formed with a locking surface portion 53 that is outward in the rotor radial direction and faces the rotor turning side.
  • the locking surface portion 53 is a flat surface extending parallel to the rotor axis, and is inclined so as to be farther from the radial reference line toward the outside in the rotor radial direction in the reference line direction.
  • the pad sliding portion 33B on the inner side of the feeding side connecting portion 23 has a torque receiving surface 81B facing the pad arrangement space 61 side and a rotor facing surface 82B facing the disc rotor 11 side. It is formed. Further, as shown in FIG. 1, the pad sliding portion 33B is formed with a locking surface portion 83B facing outward in the rotor radial direction.
  • the torque receiving surface 81B shown in FIG. 5 is a flat surface extending parallel to the radial reference line, and extends parallel to the rotor axis.
  • the torque receiving surface 81B forms a pad arrangement space 61.
  • the locking surface portion 83B shown in FIG. 1 is arranged on the same plane as the locking surface portion 53 of the support connecting portion 51.
  • the locking surface portion 83B is also a flat surface extending parallel to the rotor axis, facing the rotor radial direction outer side and the rotor turning side, and the rotor radial direction outer side is separated from the radial reference line in the reference line direction. It is tilted.
  • the locking surface portion 83B and the torque receiving surface 81B intersect at an obtuse angle. This crossing angle is equivalent to the angle formed by the locking surface portion 73B and the torque receiving surface 71B.
  • the rotation side connecting portion 23 is formed with a wall surface portion 84B that rises outward in the rotor radial direction from the end edge portion on the inner side of the locking surface portion 83B.
  • the wall surface portion 84B extends substantially orthogonal to the rotor axis.
  • an intermediate wall surface portion 86B facing the pad arrangement space 61 side is formed between the pad sliding portions 32B and 33B on the inner side.
  • the intermediate wall surface portion 86B has a planar shape extending orthogonal to the rotor axis, and forms a pad arrangement space 61.
  • the pad sliding portion 33A on the outer side of the entry side connecting portion 24 has a torque receiving surface 81A facing the pad arrangement space 61 side, a rotor facing surface 82A facing the disc rotor 11 side, and a rotor facing surface facing outward in the rotor radial direction.
  • a locking surface portion 83A is formed.
  • the torque receiving surface 81A is a flat surface extending parallel to the radial reference line, and extends parallel to the rotor axis.
  • the torque receiving surface 81A forms a pad arrangement space 61.
  • the rotor facing surface 82A forms a pad assembly space 52.
  • the torque receiving surface 81A is arranged on the same plane as the torque receiving surface 71B.
  • the rotor facing surface 82A extends perpendicular to the rotor axis.
  • the locking surface portion 83A is a flat surface extending parallel to the rotor axis, and is arranged on the same plane as the locking surface portion 73B. Therefore, the locking surface portion 83A is also oriented outward in the rotor radial direction and toward the rotor rotation side, and is inclined so as to be farther from the radial reference line toward the outer side in the rotor radial direction in the reference line direction.
  • the locking surface portion 83A and the torque receiving surface 81A intersect at an obtuse angle. This crossing angle is equivalent to the angle formed by the locking surface portion 73B and the torque receiving surface 71B.
  • the entry-side connecting portion 24 is formed with a wall surface portion 84A that rises outward from the outer edge of the locking surface portion 83A in the rotor radial direction and toward the rotor rotation side.
  • the wall surface portion 84A extends substantially orthogonal to the rotor axis and faces the wall surface portion 74B.
  • the rotor facing surface 82A and the rotor facing surface 72B face each other in the rotor axial direction by aligning the positions in the rotor radial direction and the rotor rotation direction.
  • the entry-in side connecting portion 24 is formed with an intermediate surface 88 forming a pad assembly space 52 between the rotor facing surface 82A and the rotor facing surface 72B.
  • the intermediate surface 88 is a flat surface extending parallel to the radial reference line, and extends parallel to the rotor axis.
  • the pad sliding portion 32A on the outer side of the feeding side connecting portion 23 includes a torque receiving surface 71A facing the pad arrangement space 61 side and a rotor facing surface 72A facing the disc rotor 11 side. It is formed. Further, as shown in FIG. 1, the pad sliding portion 32A is formed with a locking surface portion 73A facing outward in the rotor radial direction.
  • the torque receiving surface 71A is a flat surface extending parallel to the radial reference line, and extends parallel to the rotor axis.
  • the torque receiving surface 71A is arranged on the same plane as the torque receiving surface 81B.
  • the torque receiving surface 71A forms a pad arrangement space 61.
  • the locking surface portion 73A is arranged on the same plane as the locking surface portion 53 and the locking surface portion 83B. Therefore, the locking surface portion 73A is a flat surface extending parallel to the rotor axis.
  • the locking surface portion 73A is oriented outward in the rotor radial direction and toward the rotor entry side, and is inclined so as to be farther from the radial reference line toward the outer side in the rotor radial direction in the reference line direction.
  • the locking surface portion 73A and the torque receiving surface 71A intersect at an obtuse angle. This intersection angle is the same as the angle formed by the locking surface portion 73B and the torque receiving surface 71B.
  • the rotation side connecting portion 23 is formed with a wall surface portion 74A that rises from the outer edge portion of the locking surface portion 73A on the outer side in the rotor radial direction and on the rotor entry side.
  • the wall surface portion 74A extends substantially orthogonal to the rotor axis and faces the wall surface portion 84B.
  • an intermediate wall surface portion 86A facing the pad arrangement space 61 side is formed between the pad sliding portions 32A and 33A on the outer side.
  • the intermediate wall surface portion 86A has a planar shape extending orthogonal to the rotor axis, and forms a pad arrangement space 61.
  • the intermediate wall surface portion 86A aligns the positions in the rotor radial direction and the rotor rotation direction with the intermediate wall surface portion 86B and faces the rotor axial direction.
  • a pad spring 101 is locked to the intermediate connecting portion 25 and attached to the caliper main body 15.
  • the caliper main body 15 supports a pair of pads 102 having the same shape as each other by the pad spring 101. These pads 102 are arranged to face the disc rotor 11.
  • One pad 102 is arranged between the outer cylinder portion 21 and the disc rotor 11.
  • the other pad 102 is arranged between the inner cylinder portion 22 and the disc rotor 11.
  • the pad spring 101 is formed by punching and bending a plate material having a constant thickness by press molding.
  • the pad spring 101 includes a substrate portion 111 shown in FIG. 5, an engaging plate portion 112, an engaging plate portion 113, a pair of extending plate portions 114, 115 shown in FIG. 1, and a pair of extending plate portions 116, 117. And a connecting plate portion 118 and a connecting plate portion 119.
  • the substrate portion 111 shown in FIG. 5 is arranged between the intermediate connecting portion 25 and the pair of pads 102 and is in contact with the intermediate connecting portion 25.
  • the engaging plate portion 112 extends outward in the rotor radial direction from the end edge portion on the rotor rotation side of the substrate portion 111 and engages with the intermediate connecting portion 25.
  • the engaging plate portion 113 extends outward in the rotor radial direction from the end edge portion on the rotor entry side of the substrate portion 111 and engages with the intermediate connecting portion 25. As a result, the engaging plate portions 112 and 113 sandwich the intermediate connecting portion 25. As a result, the pad spring 101 is attached to the caliper body 15.
  • the pair of extension plate portions 114 and 115 on the rotor rotation side shown in FIG. 1 extend from the end edge portion of the substrate portion 111 on the rotor rotation side shown in FIG. 5 to the rotor rotation side.
  • the connecting plate portion 118 connects the tip portions of the extension plate portions 114 and 115 on the rotor rotation side to each other.
  • the extending plate portions 114 and 115 are arranged on both sides of the engaging plate portion 112 in the rotor axial direction. As shown in FIG. 5, the extension plate portions 114, 115 and the connecting plate portion 118 are bent so that the rotor rotation side projects inward in the rotor radial direction.
  • the pair of extension plate portions 116, 117 on the rotor entry side shown in FIG. 1 extend from the end edge portion of the substrate portion 111 on the rotor entry side shown in FIG. 5 to the rotor entry side.
  • the connecting plate portion 119 connects the tip portions of the extension plate portions 116 and 117 on the rotor entry side to each other.
  • the extension plate portions 116 and 117 are arranged on both sides of the engagement plate portion 113 in the rotor axial direction.
  • the extension plate portions 114 and 116 on the outer side come into contact with the pad 102 on the outer side and press it inward in the rotor radial direction. At that time, the extension plate portion 114 on the rotor rotation side presses the pad 102 on the outer side also on the rotor rotation side.
  • the extension plate portions 115 and 117 on the inner side come into contact with the pad 102 on the inner side and press the pad 102 inward in the rotor radial direction. At that time, the extension plate portion 115 on the rotor rotation side presses the pad 102 on the inner side also on the rotor rotation side.
  • the pair of pads 102 are common parts having the same shape as each other.
  • the pad 102 has a back plate 121 that is long in the rotor rotation direction and a lining material 122 that is attached to the flat attachment surface 125 on one side in the thickness direction of the back plate 121. ..
  • the pad 102 is urged by the pad spring 101 and supported by the caliper main body 15, and contacts the disc rotor 11 in the lining material 122 to apply a braking force to the vehicle.
  • the pad 102 is pressed by the pistons 16 and 17 on the flat back surface 126 located on the opposite side of the back plate 121 from the sticking surface 125.
  • the pad 102 comes into contact with the disc rotor 11 at the flat tip surface 127 located on the opposite side of the back plate 121 of the lining material 122.
  • the front end surface 127 of the lining material 122 is a flat surface parallel to the sticking surface 125 and the back surface 126 of the back plate 121.
  • the side surfaces 128 on both sides in the rotor rotation direction are flat and parallel to each other.
  • the side surfaces 128 on both sides are perpendicular to the sticking surface 125 of the back plate 121.
  • the back plate 121 has a constant plate thickness, and is a pair of a main plate portion 130 to which the lining material 122 is attached and a pair extending from both ends in the rotor rotation direction on the outer side in the rotor radial direction of the main plate portion 130 to both outer sides in the rotor rotation direction. It has the extension portions 131 and 132 of the above.
  • the main plate portion 130 has a substantially rectangular shape that is long in the rotor rotation direction, and the extending portions 131 and 132 are both sides of the main plate portion 130 in the longitudinal direction from both ends in the rotor rotation direction in the longitudinal direction of the main plate portion 130. It extends in a direction that is tilted with respect to.
  • the longitudinal direction of the main plate portion 130 is the longitudinal direction of the back plate 121, and is the longitudinal direction of the pad 102. Therefore, the back plate 121 is formed with a pair of extending portions 131, 132 extending in a direction inclined with respect to the longitudinal direction of the pad 102 on both ends in the rotor rotation direction and outside in the rotor radial direction. There is.
  • the back plate 121 has a mirror-symmetrical outer shape of the main plate 130, and the extending portions 131 and 132 have a mirror-symmetrical shape.
  • One of the extending portions 131 is one end side of the main plate portion 130 in the rotor rotation direction and extends in a direction away from the main plate portion 130 along the longitudinal direction of the main plate portion 130 from the outside in the rotor radial direction.
  • the extension portion 131 is inclined so as to be located on the outer side in the rotor radial direction in the reference line direction toward the extension tip side.
  • the other extending portion 132 extends from the outside in the rotor radial direction to the other end side of the main plate portion 130 in the rotor rotation direction in a direction away from the main plate portion 130 along the longitudinal direction of the main plate portion 130.
  • the other extension portion 132 is inclined so as to be located on the outer side in the rotor radial direction in the reference line direction toward the extension tip side.
  • the main plate portion 130 has a side surface portion 141 which is a flat surface extending perpendicularly to the longitudinal direction of the main plate portion 130 on one side in the longitudinal direction which is the root position of the extension portion 131. Further, the main plate portion 130 has a side surface portion 142 which is a flat surface extending perpendicularly to the longitudinal direction of the main plate portion 130 on the other side in the longitudinal direction which is the root position of the extension portion 132.
  • the main plate portion 130 has an outer surface portion 143 which is a curved surface curved so as to project outward in the rotor radial direction on the outer side in the rotor radial direction.
  • Both the side surface portions 141 and 142 and the outer surface portion 143 are flat surfaces extending in the plate thickness direction of the back plate 121.
  • the side surface portions 141 and 142 are parallel to each other and are also parallel to the pair of side surface 128 of the lining material 122.
  • the extending portion 131 extends from between the side surface portion 141 and the outer surface portion 143.
  • the extending portion 131 has a substantially rhombic shape when the back plate 121 is viewed from the plate thickness direction.
  • the extending portion 131 includes a surface portion 151 that is outside the rotor rotation direction and faces the inside in the rotor radial direction and the outside in the rotor rotation direction, and a surface portion 152 that is inside the rotor rotation direction and faces the outside in the rotor radial direction and the inside in the rotor rotation direction. It has a surface portion 153 that is outside in the radial direction of the rotor and faces the outside in the radial direction of the rotor.
  • Each of these surface portions 151, 152, and 153 is a flat surface extending in the plate thickness direction of the back plate 121, and extends along the rotor axial direction.
  • the surface portion 151 extends from the edge portion side of the side surface portion 141 on the outer side in the rotor radial direction at an angle with respect to the longitudinal direction and the reference line direction of the pad 102, and extends outward in the rotor radial direction and outward in the rotor rotation direction. ..
  • the surface portion 151 and the side surface portion 141 form an obtuse angle.
  • the angle formed by the surface portion 151 and the side surface portion 141 is the same as the angle formed by the locking surface portion 73B of the pad sliding portion 32B and the torque receiving surface 71B.
  • the face portion 152 extends from the edge portion of the outer surface portion 143 on the side surface portion 141 side in the rotor rotation direction at an angle with respect to the longitudinal direction and the reference line direction of the pad 102, and extends outward in the rotor radial direction and outward in the rotor rotation direction. It is out.
  • the face portion 152 extends substantially parallel to the face portion 151.
  • the face portion 153 connects the edge portion of the face portion 151 on the side opposite to the side surface portion 141 and the end edge portion of the face portion 152 on the side opposite to the outer surface portion 143, and is perpendicular to the side surface portion 141. It has spread.
  • the face portion 151 and the face portion 153 have an acute angle, and the face portion 152 and the face portion 153 have an obtuse angle.
  • the extending portion 132 extends from between the side surface portion 142 and the outer surface portion 143.
  • the extending portion 132 has a substantially rhombic shape when the back plate 121 is viewed from the plate thickness direction.
  • the extending portion 132 includes a surface portion 161 that is outside the rotor rotation direction and faces the inside in the rotor radial direction and the outside in the rotor rotation direction, and a surface portion 162 that is inside the rotor rotation direction and faces the outside in the rotor radial direction and the inside in the rotor rotation direction. It has a surface portion 163 that is outside in the radial direction of the rotor and faces the outside in the radial direction of the rotor.
  • Each of these surface portions 161, 162, 163 is a flat surface extending in the plate thickness direction of the back plate 121, and extends along the rotor axial direction.
  • the surface portion 161 extends from the edge portion side of the side surface portion 142 on the outer side in the rotor radial direction at an angle with respect to the longitudinal direction and the reference line direction of the pad 102, and extends outward in the rotor radial direction and outward in the rotor rotation direction. ..
  • the surface portion 161 and the side surface portion 142 form an obtuse angle.
  • the angle formed by the surface portion 161 and the side surface portion 142 is the same as the angle formed by the surface portion 151 and the side surface portion 141.
  • the face portion 162 extends from the edge portion of the outer surface portion 143 on the side surface portion 142 side in the rotor rotation direction to the outside in the rotor radial direction and the outside in the rotor rotation direction at an angle with respect to the longitudinal direction and the reference line direction of the pad 102. It is out.
  • the face portion 162 extends substantially parallel to the face portion 161.
  • the face portion 163 connects the end edge portion of the face portion 161 opposite to the side surface portion 142 and the end edge portion of the face portion 162 opposite to the outer surface portion 143, and is perpendicular to the side surface portion 142. It has spread.
  • the face portion 161 and the face portion 163 form an acute angle.
  • the surface portion 162 and the surface portion 163 form an obtuse angle.
  • the face portion 163 is arranged on the same plane as the face portion 153.
  • the extension portions 131 are supported by the pad sliding portion 32B on the rotor entry side in a posture in which the extension portions 131 and 132 are arranged at the outer ends in the radial direction of the rotor, and the extension portions 131 are supported by the pad sliding portion 32B on the rotor entry side.
  • the extension portion 132 is supported by the pad sliding portion 33B on the rotor rotation side.
  • the extending portion 132 arranged on the rotor feeding side abuts on the extending plate portion 115 of the pad spring 101 on the surface portion 162, and the extending plate portion At 115, the rotor is pressed inward in the radial direction and toward the rotor rotation side. Further, the extending portion 132 abuts on the surface portion 161 with the locking surface portion 83B shown in FIG. 1 of the pad sliding portion 33B. Further, as shown in FIG. 5, in this pad 102, the extension portion 131 on the rotor entry side abuts on the extension plate portion 117 of the pad spring 101 on the surface portion 153, and the rotor diameter is reached at the extension plate portion 117. It will be pressed inward in the direction. Further, the extending portion 131 comes into contact with the locking surface portion 73B of the pad sliding portion 32B on the surface portion 151.
  • the urging force of the pad spring 101 causes the side surface portion 142 of the main plate portion 130 to face the inner side and the rotor rotation side facing the inner side portion 142.
  • the torque receiving surface 81B of the above is directly brought into contact with the surface contact.
  • the surface portion 161 of the extension portion 132 is brought into direct contact with the locking surface portion 83B (see FIG. 1) on the inner side and the rotor rotation side facing the extension portion 132 by surface contact.
  • the surface portion 151 of the extension portion 131 is brought into direct contact with the locking surface portion 73B on the inner side and the rotor entry side facing the extension portion 131 by surface contact.
  • the caliper main body 15 has a locking surface portion 73B in which the pad sliding portion 32B on the inner side extends along the extending direction of the extending portion 131 of the pad 102 on the inner side. In the pad 102 on the inner side, the extending portion 131 is locked to the pad sliding portion 32B on the inner side. Further, in this state, the caliper main body 15 has the locking surface portion 83B shown in FIG. 1 in which the pad sliding portion 33B on the inner side extends along the extending direction of the extending portion 132 of the pad 102 on the inner side. Become. In the pad 102 on the inner side, the extending portion 132 is locked to the pad sliding portion 33B on the inner side. Further, in this state, as shown in FIG.
  • the pad 102 on the inner side brings the side surface portion 142 of the main plate portion 130 into contact with the torque receiving surface 81B, and the side surface portion 141 of the main plate portion 130 is brought into contact with the torque receiving surface. It will face 71B with a slight gap. Further, in this state, in the pad 102 on the inner side, the extending portions 131 and 132 are arranged outside the outermost circumference of the disc rotor 11 in the rotor radial direction.
  • the lining material 122 is arranged on the inner side with respect to the back plate 121, and the extension portion 131,
  • the 132 is arranged on the outer side in the radial direction of the rotor.
  • the extension portion 131 is supported by the pad sliding portion 32A on the rotor rotation side
  • the extension portion 132 is supported by the pad sliding portion 33A on the rotor rotation side.
  • the extending portion 131 arranged on the rotor feeding side abuts on the extending plate portion 114 of the pad spring 101 on the surface portion 152, and the extending plate portion 114 Will be pressed inward in the radial direction of the rotor and toward the rotor rotation side.
  • the extending portion 131 comes into contact with the locking surface portion 73A of the pad sliding portion 32A at the surface portion 151 (see FIG. 5).
  • the extension portion 132 on the rotor entry side comes into contact with the extension plate portion 116 of the pad spring 101 at the surface portion 163, and is pressed inward in the rotor radial direction by the extension plate portion 116. ..
  • the extending portion 132 comes into contact with the locking surface portion 83A of the pad sliding portion 33A at the surface portion 161 (see FIG. 5).
  • the urging force of the pad spring 101 causes the side surface portion 141 (see FIG. 5) of the main plate portion 130 to face the outer side.
  • the torque receiving surface 71A on the rotor rotation side is brought into direct contact with the surface contact.
  • the surface portion 151 (see FIG. 5) of the extension portion 131 is brought into direct contact with the locking surface portion 73A on the outer side and the rotor rotation side facing the same, and the surface portion 161 of the extension portion 132 is brought into direct contact with the surface portion 161. (See FIG. 5) is brought into direct contact with the locking surface portion 83A on the outer side and the rotor entry side facing the same (see FIG. 5) by surface contact.
  • the caliper main body 15 has a locking surface portion 73A in which the pad sliding portion 32A on the outer side extends along the extending direction of the extending portion 131 of the pad 102 on the outer side. Then, in the pad 102 on the outer side, the extending portion 131 is locked to the pad sliding portion 32A on the outer side. Further, in this state, the caliper main body 15 has the pad sliding portion 33A on the outer side having the locking surface portion 83A in which the pad sliding portion 33A on the outer side extends along the extending direction of the extending portion 132 of the pad 102 on the outer side. Then, in the pad 102 on the outer side, the extending portion 132 is locked to the pad sliding portion 33A on the outer side.
  • the pad 102 on the outer side brings the side surface portion 141 (see FIG. 5) of the main plate portion 130 into contact with the torque receiving surface 71A, and the side surface portion 142 (see FIG. 5) of the main plate portion 130 is brought into contact with the torque receiving surface. It will face 81A with a slight gap. Further, in this state, in the pad 102 on the outer side, the extending portions 131 and 132 are arranged outside the outermost circumference of the disc rotor 11 in the rotor radial direction.
  • the pair of pads 102 are slidably locked to one caliper main body 15.
  • the inner pad 102 shown in FIG. 5 is supported by the inner pad sliding portions 32B and 33B of the caliper main body 15 and moves in the rotor axial direction.
  • the pad sliding portions 32B and 33B are the locking surface portions 73B arranged in a V shape on both sides in the rotor rotation direction and the locking surface portions 83B shown in FIG. It will be locked. Therefore, in the caliper main body 15, the pad sliding portions 32B and 33B on the inner side slidably support the pad 102 on the inner side in the rotor axial direction.
  • the outer pad 102 shown in FIG. 1 is supported by the pad sliding portions 32A and 33A on the outer side of the caliper main body 15 and moves in the rotor axial direction.
  • the pad sliding portions 32A and 33A lock the extending portions 131 and 132 of the pad 102 on the outer side with the locking surface portions 73A and 83A arranged in a V shape on both sides in the rotor rotation direction. Therefore, in the caliper main body 15, the pad sliding portions 32A and 33A on the outer side slidably support the pad 102 on the outer side in the rotor axial direction.
  • the caliper 12 has a so-called pad pinless structure in which the pair of pads 102 are directly supported by the caliper body 15 without having the pad pins that support the pair of pads 102.
  • the two pistons 16 and 17 provided on the inner cylinder portion 22 press the inner pad 102 provided between the inner cylinder portion 22 and the disc rotor 11, and the lining material 122 thereof is pressed. Press against the disc rotor 11. As a result, the pair of pads 102 press the disc rotor 11 to generate a braking force on the vehicle.
  • the pair of pads 102 are locked to the caliper main body 15 so that the movement in the rotor radial direction and the rotor rotation direction is regulated by the pad sliding portions 32A, 33A, 32B, 33B, and the rotor shaft It will move in the direction.
  • the inner pad 102 moves while being supported by the inner pad sliding portions 32B and 33B at the extending portions 131 and 132.
  • the extending portion 132 slides on the locking surface portion 83B of the pad sliding portion 33B on the surface portion 161 and the extending portion 131 slides on the locking surface portion 73B of the pad sliding portion 32B on the surface portion 151.
  • the pad 102 on the outer side is locked to the pad sliding portions 32A and 33A on the outer side at the extending portions 131 and 132 and moves.
  • the caliper main body 15 including the pad sliding portions 32A, 33A, 32B, 33B locks the pad 102 so as to be movable in the rotor axial direction.
  • both of the pair of pads 102 come into contact with the disc rotor 11 in the lining material 122 and move to the rotor rotation side. Then, as shown in FIG. 4, the pad 102 on the inner side comes into contact with the torque receiving surface 81B of the pad sliding portion 33B on the rotor rotation side on the side surface portion 142 of the back plate 121. Then, the pad 102 on the outer side comes into contact with the torque receiving surface 71A of the pad sliding portion 32A on the rotor rotation side on the side surface portion 141 of the back plate 121. As a result, the caliper main body 15 receives braking torque mainly at the pad sliding portions 32A and 33B.
  • the pair of pads 102 all come into contact with the disc rotor 11 at the lining material 122 and move to the rotor rotation side at the time of reverse. Then, the pad 102 on the inner side comes into contact with the torque receiving surface 71B of the pad sliding portion 32B on the side surface portion 141 of the back plate 121. Further, the pad 102 on the outer side abuts on the torque receiving surface 81A of the pad sliding portion 33A on the side surface portion 142 of the back plate 121. As a result, the caliper main body 15 receives braking torque mainly at the pad sliding portions 32B and 33A.
  • the caliper main body 15 is provided with an intermediate connecting portion 25 straddling the intermediate portion of the pad arrangement space 61 in the rotor rotation direction in the rotor axial direction on the outside of the pad arrangement space 61 in the rotor radial direction. .. Therefore, when assembling the pair of pads 102 to the caliper main body 15, they interfere with each other from the outside in the rotor radial direction and cannot be assembled, and are assembled from the inside in the rotor radial direction.
  • the pad arrangement space 61 and the pad assembly space 52 have a size and shape that cannot be assembled to the caliper main body 15 together with the two pads 102. Therefore, the pair of pads 102 are assembled one by one to the caliper main body 15 from the inside in the rotor radial direction.
  • the pad 102 on the outer side in a new state is first assembled to the pad sliding portions 32A and 33A on the outer side, and then the pad 102 on the inner side in a new state is assembled to the pad sliding portions 32B and 33B on the inner side. become.
  • the pad 102 on the outer side to be assembled first passes the extending portion 132 through the pad assembling space 52, so that the extending portions 131 and 132 move the pad sliding portions 32A and 33A out of the rotor radial direction. It can be crossed over and can be assembled to the pad sliding portions 32A and 33A.
  • the caliper main body 15 of this embodiment is miniaturized in the rotor axial direction. Therefore, the pad arrangement space 61 and the pad assembly space 52 are in a state where the pad 102 on the outer side in the new state attached earlier is closest to the outer side, in other words, as shown in FIG. 8, on the outer side. Even if the back surface 126 of the back plate 121 of the pad 102 is brought into contact with the intermediate wall surface portion 86A by surface contact, it cannot be assembled to the caliper main body 15.
  • FIG. 8 is a view of the vicinity of the pad arrangement space 61 of the caliper main body 15 as viewed from the outside in the radial direction of the rotor along the direction of the radial reference line.
  • the pad 102 on the outer side in the new state is first assembled to the pad sliding portions 32A and 33A on the outer side, and the caliper main body 15 is positioned at the end position on the outermost side, and is on the inner side in the new state. Even if the pad 102 is moved in the rotor radial direction while the tip surface 127 of the pad 102 is in surface contact with the tip surface 127 of the pad 102 on the outer side, the pad slide forming the pad assembly space 52 and the pad arrangement space 61.
  • the moving parts 32A, 32B, 33A, 33B and the support connecting part 51 hinder this.
  • the extending portion 131 is placed in the pad assembly space 52. Even if the pad sliding portion 32B is passed through in the rotor radial direction, as shown in FIG. 8, the extending portion 131 interferes with the pad sliding portion 32B due to overlapping positions in the rotor rotation direction and the rotor axial direction. Will end up. Therefore, the extending portion 131 cannot cross the pad sliding portion 32B in the rotor radial direction.
  • the pad 102 on the inner side in the new state is first assembled to the pad sliding portions 32B and 33B on the inner side, and then the pad 102 on the outer side in the new state is attached to the pad sliding portion on the outer side.
  • the pad 102 on the inner side is assembled to the pad sliding portions 32B and 33B on the inner side in a new state, and the pad 102 on the inner side is the most inner side.
  • the pad 102 on the outer side in a new state is assembled to the caliper main body 15 in a state where the tip surface 127 is brought into surface contact with the tip surface 127 of the pad 102 on the inner side and arranged in parallel with the pad 102 on the inner side. I can't.
  • the pad 102 on the inner side in the new state is first assembled to the pad sliding portions 32B and 33B on the inner side, and the caliper body 15 is positioned at the end position on the innermost side, and is on the outer side in the new state. Even if the pad 102 is moved in the rotor radial direction while the tip surface 127 is in surface contact with the tip surface 127 of the pad 102 on the inner side, the pad slide forming the pad assembly space 52 and the pad arrangement space 61.
  • the moving parts 32A, 32B, 33A, 33B and the support connecting part 51 hinder this.
  • the extending portion 132 is placed in the pad assembly space 52. Even if the pad sliding portion 33A is passed through in the rotor radial direction, the extending portion 132 overlaps the pad sliding portion 33A in the rotor rotation direction and the rotor axial direction and interferes with the pad sliding portion 33A. Therefore, the pad sliding portion 33A cannot be crossed in the rotor radial direction.
  • the distance between the back surface 126 of the back plate 121 in a new state of the pad 102 on the outer side and the tip surface 127 of the lining material 122 is defined as the new thickness Pt1.
  • the new thickness Pt1 is the maximum thickness of the pad 102 in a new state.
  • the distance between the back surface 126 of the back plate 121 in the new state of the pad 102 on the inner side and the tip surface 127 of the lining material 122 is defined as the new thickness Pt2.
  • the distance between the rotor facing surface 72B of the pad sliding portion 32B on the rotor entry side and the inner side and the intermediate wall surface portion 86B is defined as the rotor axial width Ci.
  • Co be the distance between the rotor facing surface 82A and the intermediate wall surface portion 86A of the pad sliding portion 33A on the rotor entry side and the outer side.
  • the total distance Ci + Csx of the pad sliding portion 32B on the inner side and the pad assembly space 52 is smaller than the thickness 2 ⁇ Pt of two pads 102. That is, the relationship is 2 ⁇ Pt> Ci + Csx.
  • the total distance between one of the pad sliding portion 33A on the outer side and the pad sliding portion 32B on the inner side and the pad assembling space 52 is two of the pads 102.
  • the dimensional relationship is shorter than the thickness of the minute.
  • the pad 102 on the outer side in a new state is first assembled to the pad sliding portions 32A and 33A on the outer side. After that, when assembling the pad 102 on the inner side in a new state to the pad sliding portions 32B and 33B on the inner side, the pad 102 on the outer side is brought closer to the outer side, in other words, the pad 102 on the outer side.
  • the back surface 126 of the back plate 121 is brought into contact with the intermediate wall surface portion 86A by surface contact. Then, if the pad 102 on the inner side in a new state is slanted with respect to the pad 102 on the outer side, the extending portion 131 can be passed through the pad assembling space 52.
  • the pad arrangement space 61 and the pad assembly space 52 are formed in a shape in which the pad 102 on the inner side in a new state can be assembled to the caliper main body 15.
  • FIG. 9 is also a view of the vicinity of the pad arrangement space 61 of the caliper main body 15 as viewed from the outside in the radial direction of the rotor along the direction of the radial reference line.
  • the pad sliding portions 32A, 32B, 33A, 33B and the support connecting portion 51 forming the pad assembling space 52 and the pad arrangement space 61 were first assembled to the pad sliding portions 32A, 33A on the outer side. If the pad 102 on the outer side in the new state is positioned at the end position on the outermost side, this will be hindered when the pad 102 on the inner side in the new state is moved from the inside to the outside in the radial direction of the rotor. It is possible to pass without.
  • the pad 102 on the inner side in the new state is first assembled to the pad sliding portions 32B and 33B on the inner side, and then the pad 102 on the outer side in the new state is attached to the pad sliding portion on the outer side.
  • the pad 102 on the inner side is brought closer to the inner side, in other words, the back surface 126 of the back plate 121 of the pad 102 on the inner side is brought into contact with the intermediate wall surface portion 86B by surface contact. Let it be in the state of being made.
  • the pad arrangement space 61 and the pad assembly space 52 are formed in a shape that allows the pad 102 on the outer side in a new state to be assembled to the caliper main body 15.
  • the pad sliding portions 32A, 32B, 33A, 33B and the support connecting portion 51 forming the pad assembling space 52 and the pad arrangement space 61 were first assembled to the pad sliding portions 32B, 33B on the inner side. If the pad 102 on the inner side in the new state is positioned at the end position on the innermost side, the pad 102 on the outer side in the new state will not be hindered when moving from the inside to the outside in the radial direction of the rotor. It is possible to pass through with.
  • FIG. 10 is also a view of the vicinity of the pad arrangement space 61 of the caliper main body 15 as viewed from the outside in the radial direction of the rotor along the direction of the radial reference line.
  • the pad 102 on the outer side in the new state is first assembled to the pad sliding portions 32A and 33A on the outer side, and then the pad 102 on the inner side in the new state is attached to the pad sliding portions 32B and 33B on the inner side.
  • the case of assembling is illustrated.
  • the tip surface 127 of the lining material 122 of the pad 102 on the outer side in the new state which is assembled first to the pad sliding portions 32A and 33A on the outer side and is brought closer to the outer side.
  • the shortest distance between and the boundary position X1 between the rotor and the side surface 128 on the rotor entry side; and the boundary position X2 between the torque receiving surface 71B of the pad sliding portion 32B on the inner side and the rotor facing surface 72B; is defined as Csm.
  • the shapes of the pad assembly space 52 and the pad arrangement space 61 are set so that the shortest distance Csm is larger than the new thickness Pt of the pad 102 on the inner side.
  • the straight line extending from the boundary position X2 to the rotor rotation side orthogonal to the line connecting the boundary position X1 and the boundary position X2 does not intersect the intermediate wall surface portion 86B.
  • the lining material 122 on the pad assembly space 52 side of the pad 102 on the new inner side which is assembled first to the pad sliding portions 32B and 33B on the inner side and is brought closer to the inner side.
  • the shapes of the pad assembly space 52 and the pad arrangement space 61 are set so that the shortest distance Csm is larger than the new thickness Pt of the pad 102 on the outer side.
  • the shapes of the pad assembly space 52 and the pad arrangement space 61 are set so that Csm> Pt.
  • Co Ci.
  • Ct Co + Csx + Ci.
  • A Csx + Co-Pt.
  • A is the distance between the tip surface 127 of the pad 102 on the outer side and the rotor facing surface 72B of the pad sliding portion 32B on the inner side.
  • the shortest distance between the torque receiving surfaces 71B and 81A of the pad sliding portions 32B and 33A and the boundary position X1 of the lining material 122 of the pad 102 on the outer side is S, and the line connecting the boundary position X1 and the boundary position X2.
  • ⁇ be the angle formed by the torque receiving surfaces 71B and 81A.
  • the boundary position X2 which is the end of the pad sliding portion 32B on the inner side on the disc rotor side and the rotor rotation side, is in the direction of being separated from the disc rotor 11 on the pad sliding portion 33A on the other outer side.
  • the shortest distance Csm from the pad 102 is provided at a position where the thickness Pt is longer than the thickness Pt of one pad 102, that is, at a position where Csm> Pt. ing.
  • the boundary position X2 which is the end of the pad sliding portion 32B on one inner side on the disc rotor side and the rotor rotation side, is in the direction of being separated from the disc rotor 11 on the pad sliding portion 33A on the other outer side.
  • the gap with the pad 102 is provided at a position where the thickness Pt is longer than the thickness Pt of one pad 102.
  • the boundary position of the pad sliding portion 33A on the other outer side which is the end on the disc rotor side and the rotor rotation side, is in the direction away from the disc rotor 11 in the pad sliding portion 32B on the inner side of one.
  • one new pad 102 is arranged at the end position, it is provided at a position where the shortest distance from the pad 102 is longer than the thickness of one pad 102.
  • the boundary position of the pad sliding portion 33A on the other outer side which is the end on the disc rotor side and the rotor rotation side, is in the direction away from the disc rotor 11 in the pad sliding portion 32B on the inner side.
  • one new pad 102 is arranged at the end position, it is provided at a position where the gap with the pad 102 becomes longer than the thickness of one pad 102.
  • Patent Document 1 discloses a disc brake having a structure in which a space open in the rotor radial direction is provided in the caliper main body and a pad is arranged in this space.
  • Disc brakes are required to be miniaturized, but if they are simply miniaturized, the pads cannot be attached to the caliper body.
  • Co + Csx which is the total distance between the pad sliding portion 33A on the outer side and the pad assembling space 52 in the rotor axial direction
  • Ci + Csx which is the total distance between the pad sliding portion 32B on the inner side and the pad assembling space 52, is smaller than the thickness 2 ⁇ Pt of two pads 102. ..
  • the caliper main body 15 can be miniaturized at least in the rotor axial direction.
  • the boundary position X2 which is the end of the pad sliding portion 32B on the inner side on the disc rotor side and the rotor rotation side, is separated from the disc rotor 11 on the pad sliding portion 33A on the other outer side.
  • one new pad 102 is arranged at the end position in the direction, it is provided at the shortest distance Csm from the pad 102, that is, at a position where the gap is longer than the thickness Pt of one pad 102.
  • the boundary position of the pad sliding portion 33A on the other outer side which is the end portion on the disc rotor side and the rotor rotation side, is in the direction of being separated from the disc rotor 11 in the pad sliding portion 32B on the inner side.
  • one new pad 102 is arranged at the end position, it is provided at the shortest distance from the pad 102, that is, at a position where the gap is longer than the thickness of one pad 102.
  • the pad assembly space 52 is provided on the rotor entry side when the vehicle is moving forward. Therefore, the pad sliding portions 32A and 33B on the rotor rotation side, which receive a large torque, can be connected by the support connecting portion 51 to increase the rigidity. Further, the locking surface portions 73A and 83B for locking the pads 102 of the pad sliding portions 32A and 33B can be made continuous by the locking surface portion 53 of the support connecting portion 51. Therefore, the caliper main body 15 has an increased contact area with the pad 102 on the rotor rotation side. Therefore, the vibration resistance is improved. In addition, processing for forming a pad assembly space between the pad sliding portions 32A and 33B becomes unnecessary, and the processing cost can be reduced.
  • the rigidity and vibration resistance of the caliper main body 15 can be effectively increased and the processing cost can be reduced as compared with the case where the pad assembly space is provided on the rotor rotation side.
  • the support connecting portion 51 does not necessarily have to be provided. That is, if the gap between the pad sliding portions 32A and 33B is narrower in the rotor axial direction than the gap between the pad sliding portions 32B and 33A, in other words, the distance between the rotor facing surfaces 72B and 82A, the caliper main body 15 It is effective in improving the rigidity and vibration resistance of the product.
  • the pad assembly space 52 is formed only on the rotor turning side of the caliper main body 15 when the vehicle is moving forward.
  • the pad assembly space 52 may also be formed on the rotor rotation side of the caliper main body 15 when the vehicle is moving forward. Further, the pad assembly space 52 may be formed only on the rotor rotation side of the caliper main body 15 when the vehicle is moving forward. Further, although the rotor facing surfaces 72B and 82A are designed to spread perpendicularly to the rotor axis, they may be inclined so as to spread diagonally to the rotor axis.
  • the disc brake according to the first aspect of the present embodiment described above includes a pair of pads that press the disc rotor; and a pad assembly space that is arranged so as to straddle the disc rotor and opens in the rotor radial direction.
  • a caliper body having a pair of pad sliding portions that slidably support the pair of pads in the rotor axial direction on both sides of the pad assembly space in the rotor axial direction; In the above, the total length of the pad sliding portion on either the outer side or the inner side and the pad assembling space is shorter than the thickness of two of the pads, and the pair of pads slide.
  • the pad assembly space is formed on the inlet side in the rotational direction of the disc rotor when the vehicle is moving forward.
  • the end of the pad sliding portion on the disc rotor side is the end of the pad sliding portion on the disc rotor side and in the rotor rotation direction. It is in the boundary position that becomes a part.
  • the disc brake according to the fourth aspect includes a pair of pads for pressing the disc rotor; a pad assembly space arranged straddling the disc rotor and opening in the rotor radial direction, and the pad assembly space.
  • a caliper body having a pair of pad sliding portions that slidably support the pair of pads in the rotor axial direction on both sides of the space in the rotor axial direction; The total length of the pad sliding portion on either side and the pad assembling space is shorter than the thickness of two of the pads, and the disc in one of the pair of pad sliding portions.
  • the distance from the pad is one of the pads. It is provided at a position that is longer than the thickness of one. According to this configuration, miniaturization is possible.
  • the pad assembly space is formed on the inlet side in the rotational direction of the disc rotor when the vehicle is moving forward.
  • the end of the pad sliding portion on the disc rotor side is the end of the pad sliding portion on the disc rotor side and in the rotor rotation direction. It is in the boundary position that becomes a part.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)

Abstract

This disc brake is provided with a pair of pads and a caliper body. In the rotor axial direction, the combined length of a pad assembly space and a pad sliding part on either the outer side or the inner side is shorter than the thickness of two pads. The disc-rotor-side end portion of one of the pair of pad sliding parts is positioned such that, when one of the pads is arranged at a position corresponding to the end portion of the other of the pair of pad sliding parts in a direction away from the disc rotor, the gap between this pad and the disc-rotor-side end portion is longer than the thickness of a single one of the pads.

Description

ディスクブレーキDisc brake
　本発明は、二輪車や四輪自動車等の車両を制動するためのディスクブレーキに関する。
　本願は、２０１９年１２月２５日に、日本国に出願された特願２０１９－２３３８９６号に基づき優先権を主張し、その内容をここに援用する。 The present invention relates to a disc brake for braking a vehicle such as a two-wheeled vehicle or a four-wheeled vehicle.
The present application claims priority based on Japanese Patent Application No. 2019-233896 filed in Japan on December 25, 2019, the contents of which are incorporated herein by reference.
　ディスクブレーキには、ロータ径方向に開口する空間をキャリパ本体に設け、この空間にパッドを配置する構造のものがある（例えば、下記特許文献１参照）。 Some disc brakes have a structure in which a space that opens in the rotor radial direction is provided in the caliper body and pads are arranged in this space (see, for example, Patent Document 1 below).
日本国特開２０１４－１７３６２３号公報Japanese Patent Application Laid-Open No. 2014-173623
　ディスクブレーキにおいて小型化することが求められている。 Disc brakes are required to be miniaturized.
　したがって、本発明は、小型化することが可能なディスクブレーキの提供を目的とする。 Therefore, an object of the present invention is to provide a disc brake that can be miniaturized.
　上記目的を達成するために、本発明は、以下の態様を採用した。
　第１の態様に係るディスクブレーキは、ディスクロータを押圧する一対のパッドと；前記ディスクロータを跨いで配置されるとともにロータ径方向に開口するパッド組付用空間と、前記パッド組付用空間のロータ軸方向の両側に前記一対のパッドを前記ロータ軸方向に摺動可能に支持する一対のパッド摺動部とを有するキャリパ本体と；を備え、前記ロータ軸方向において、アウタ側およびインナ側のどちらか一方の前記パッド摺動部と前記パッド組付用空間とを合わせた長さが、前記パッドの二つ分の厚みよりも短く、前記一対のパッド摺動部の一方における前記ディスクロータ側の端部が、前記一対のパッド摺動部の他方における前記ディスクロータから離間する方向の端部位置に一つの前記パッドを配置したときに、当該パッドとの空隙が、前記パッドの一つ分の厚みよりも長くなる位置に設けられている。 In order to achieve the above object, the present invention has adopted the following aspects.
The disc brake according to the first aspect includes a pair of pads for pressing the disc rotor; a pad assembly space arranged straddling the disc rotor and opening in the rotor radial direction, and a pad assembly space. A caliper body having a pair of pad sliding portions that slidably support the pair of pads in the rotor axial direction; on both sides in the rotor axial direction; The total length of either one of the pad sliding portions and the pad assembling space is shorter than the thickness of two of the pads, and the disc rotor side of one of the pair of pad sliding portions. When one of the pads is arranged at the end position of the pair of pad sliding portions in a direction away from the disc rotor, the gap between the pads and the pad is equal to one of the pads. It is provided at a position that is longer than the thickness of.
　第２の態様に係るディスクブレーキは、ディスクロータを押圧する一対のパッドと；前記ディスクロータを跨いで配置されるとともにロータ径方向に開口するパッド組付用空間と、前記パッド組付用空間のロータ軸方向の両側に前記一対のパッドを前記ロータ軸方向に摺動可能に支持する一対のパッド摺動部とを有するキャリパ本体と；を備え、前記ロータ軸方向において、アウタ側およびインナ側のどちらか一方の前記パッド摺動部と前記パッド組付用空間とを合わせた長さが、前記パッドの二つ分の厚みよりも短く、前記一対のパッド摺動部の一方における前記ディスクロータ側の端部が、前記一対のパッド摺動部の他方における前記ディスクロータから離間する方向の端部位置に一つの前記パッドを配置したときに、当該パッドとの距離が、前記パッドの一つ分の厚みよりも長くなる位置に設けられている。 The disc brake according to the second aspect includes a pair of pads for pressing the disc rotor; a pad assembly space arranged straddling the disc rotor and opening in the rotor radial direction, and a pad assembly space. A caliper body having a pair of pad sliding portions that slidably support the pair of pads in the rotor axial direction on both sides in the rotor axial direction; The total length of either one of the pad sliding portions and the pad assembling space is shorter than the thickness of two of the pads, and the disc rotor side of one of the pair of pad sliding portions. When one of the pads is arranged at the end position of the pair of pad sliding portions in a direction away from the disc rotor, the distance from the pad is equal to one of the pads. It is provided at a position that is longer than the thickness of.
　本発明の上記各態様に係るディスクブレーキによれば、小型化が可能となる。 According to the disc brake according to each of the above aspects of the present invention, miniaturization is possible.
本発明の一実施形態に係るディスクブレーキを示す平面図である。It is a top view which shows the disc brake which concerns on one Embodiment of this invention. 同実施形態のディスクブレーキを図１の矢視ＩＩより見た図である。It is a figure which looked at the disc brake of the same embodiment from the arrow view II of FIG. 同実施形態のディスクブレーキを図１の矢視ＩＩＩより見た図である。It is a figure which looked at the disc brake of the same embodiment from the arrow view III of FIG. 同実施形態のディスクブレーキを示す下面図である。It is a bottom view which shows the disc brake of the same embodiment. 同実施形態のディスクブレーキを図１のＶ－Ｖ線で見た断面図である。It is sectional drawing which looked at the disc brake of the same embodiment by VV line of FIG. 同実施形態のディスクブレーキを図１の矢視ＶＩより見た図である。It is a figure which looked at the disc brake of the same embodiment from the arrow view VI of FIG. 同実施形態のディスクブレーキを図１の矢視ＶＩＩより見た図である。It is a figure which looked at the disc brake of the same embodiment from the arrow view VII of FIG. 同実施形態のディスクブレーキの、パッドと、キャリパ本体の要部との関係を示す平面図である。It is a top view which shows the relationship between the pad and the main part of the caliper body of the disc brake of the same embodiment. 同実施形態のディスクブレーキの、パッドと、キャリパ本体の要部との関係を示す平面図である。It is a top view which shows the relationship between the pad and the main part of the caliper body of the disc brake of the same embodiment. 同実施形態のディスクブレーキの、パッドと、キャリパ本体の要部との関係を示す平面図である。It is a top view which shows the relationship between the pad and the main part of the caliper body of the disc brake of the same embodiment.
　本発明に係る一実施形態を図面に基づいて説明する。
　本実施形態のディスクブレーキ１０は、自動二輪車の前輪制動に用いられる対向ピストン型のディスクブレーキである。なお、本発明は、これのみに限らず、例えば自動二輪車の後輪制動用や、四輪自動車の制動用のディスクブレーキにも、勿論適用可能である。 An embodiment according to the present invention will be described with reference to the drawings.
The disc brake 10 of the present embodiment is an opposed piston type disc brake used for front wheel braking of a motorcycle. The present invention is not limited to this, and of course, it can be applied to, for example, a disc brake for rear wheel braking of a motorcycle or a disc brake for braking a four-wheeled vehicle.
　本実施形態のディスクブレーキ１０は、図１～図７に示すように、制動対象である図示略の車輪とともに回転する円板状のディスクロータ１１に摩擦抵抗を付与するキャリパ１２を備えている。キャリパ１２は、車体側に取り付けられている。 As shown in FIGS. 1 to 7, the disc brake 10 of the present embodiment includes a caliper 12 that imparts frictional resistance to a disc-shaped disc rotor 11 that rotates together with a wheel (not shown) that is a braking target. The caliper 12 is attached to the vehicle body side.
　なお、以下の説明においては、ディスクロータ１１の径方向をロータ径方向と称し、ディスクロータ１１の中心軸線をロータ軸線と称し、ロータ軸線の延在方向をロータ軸方向と称し、ディスクロータ１１の回転方向（円周方向）をロータ回転方向と称す。また、車両前進時におけるディスクロータ１１の回転方向Ｒの入口側をロータ回入側、出口側をロータ回出側と称す。また、ロータ径方向におけるディスクロータ１１の中心側をロータ径方向の内側、ディスクロータ１１の中心とは反対側をロータ径方向の外側と称す。また、ロータ軸方向の車輪とは反対側（車幅方向外側）をアウタ側、車輪側（車幅方向内側）をインナ側と称す。 In the following description, the radial direction of the disc rotor 11 is referred to as the rotor radial direction, the central axis of the disc rotor 11 is referred to as the rotor axis, and the extending direction of the rotor axis is referred to as the rotor axial direction. The direction of rotation (circumferential direction) is called the rotor rotation direction. Further, the inlet side in the rotation direction R of the disc rotor 11 when the vehicle is moving forward is referred to as a rotor entry side, and the exit side is referred to as a rotor exit side. Further, the center side of the disc rotor 11 in the rotor radial direction is referred to as the inside in the rotor radial direction, and the side opposite to the center of the disc rotor 11 is referred to as the outside in the rotor radial direction. The side opposite to the wheels in the rotor axis direction (outside in the vehicle width direction) is referred to as the outer side, and the wheel side (inside in the vehicle width direction) is referred to as the inner side.
　キャリパ１２は、ディスクロータ１１の外周側を跨いで配置されて車体側に固定されるキャリパ本体１５と、図４に示すようにキャリパ本体１５に収容されて互いに同形状を有する一対のピストン１６と、キャリパ本体１５に収容されて互いに同形状を有する一対のピストン１７とを有している。ピストン１６とピストン１７は、互いに同形状である。一対のピストン１６および一対のピストン１７は、それぞれの中心軸線をロータ軸方向に沿わせており、全てロータ軸線から等距離の位置に配置されている。ディスクロータ１１のロータ軸線とキャリパ本体１５のロータ回転方向の中央とを通ってロータ径方向に沿う線を、径方向基準線と称する。この径方向基準線の延在方向を、基準線方向と称する。径方向基準線は、ロータ軸線に直交する。キャリパ本体１５は、ロータ軸線および径方向基準線を含む面を基準とした鏡面対称形状となっている。 The caliper 12 includes a caliper main body 15 arranged so as to straddle the outer peripheral side of the disc rotor 11 and fixed to the vehicle body side, and a pair of pistons 16 housed in the caliper main body 15 and having the same shape as each other as shown in FIG. , A pair of pistons 17 housed in the caliper body 15 and having the same shape as each other. The piston 16 and the piston 17 have the same shape as each other. The pair of pistons 16 and the pair of pistons 17 have their respective central axes aligned with the rotor axis direction, and are all arranged at equidistant positions from the rotor axis. A line that passes through the rotor axis of the disc rotor 11 and the center of the caliper body 15 in the rotor rotation direction and along the rotor radial direction is referred to as a radial reference line. The extending direction of this radial reference line is referred to as the reference line direction. The radial reference line is orthogonal to the rotor axis. The caliper body 15 has a mirror-symmetrical shape with respect to a surface including a rotor axis and a radial reference line.
　キャリパ１２には、一対のピストン１６が、ロータ径方向およびロータ回転方向の位置を合わせて、ディスクロータ１１に対し、ロータ軸方向の両側に設けられている。また、キャリパ１２には、一対のピストン１７が、ロータ径方向およびロータ回転方向の位置を合わせて、ディスクロータ１１に対し、ロータ軸方向の両側に設けられている。一対のピストン１６は、一対のピストン１７よりもディスク回出側に設けられている。一対のピストン１６と、一対のピストン１７とは、キャリパ本体１５のロータ回転方向の中央から等距離の位置、言い換えれば径方向基準線から等距離の位置、に配置されている。 The caliper 12 is provided with a pair of pistons 16 on both sides in the rotor axial direction with respect to the disc rotor 11 so as to align the positions in the rotor radial direction and the rotor rotation direction. Further, the caliper 12 is provided with a pair of pistons 17 on both sides in the rotor axial direction with respect to the disc rotor 11 so as to align the positions in the rotor radial direction and the rotor rotation direction. The pair of pistons 16 are provided on the disc feeding side of the pair of pistons 17. The pair of pistons 16 and the pair of pistons 17 are arranged at positions equidistant from the center of the caliper body 15 in the rotor rotation direction, in other words, at positions equidistant from the radial reference line.
　キャリパ１２は、ディスクロータ１１のロータ軸方向の片側において、一つのピストン１６と一つのピストン１７とがロータ回転方向に所定の間隔をあけて並んで設けられている。そして、このような構成が、ロータ軸方向の両側に、互いに対向するように設けられている。よって、キャリパ１２は、対向ピストン型の４ポットキャリパとなっている。なお、ピストンは、少なくともディスクロータ１１を挟んで一対あればよく、上記の二対以外にも三対あるいは四対としても良い。さらには、一つと二つの組み合わせ、あるいは二つと三つの組み合わせというように、ディスクロータ１１のロータ軸方向の両側間で、ピストンの数を互いに異ならせてもよい。また、ロータ回入側とロータ回出側との間でピストンの径を互いに異ならせても良い。 The caliper 12 is provided with one piston 16 and one piston 17 arranged side by side at a predetermined interval in the rotor rotation direction on one side of the disc rotor 11 in the rotor axial direction. Then, such a configuration is provided on both sides in the rotor axial direction so as to face each other. Therefore, the caliper 12 is an opposed piston type 4-pot caliper. The number of pistons may be at least one pair with the disc rotor 11 interposed therebetween, and may be three pairs or four pairs in addition to the above two pairs. Further, the number of pistons may be different from each other between both sides of the disc rotor 11 in the rotor axial direction, such as a combination of one and two, or a combination of two and three. Further, the diameters of the pistons may be different from each other between the rotor turning side and the rotor turning side.
　キャリパ本体１５は、図１に示すように、ロータ軸方向におけるディスクロータ１１のアウタ側に配置されるアウタ側シリンダ部２１と、ディスクロータ１１のインナ側に配置されるインナ側シリンダ部２２と、アウタ側シリンダ部２１およびインナ側シリンダ部２２のロータ回出側の各端部同士を連結する回出側連結部２３と、アウタ側シリンダ部２１およびインナ側シリンダ部２２のロータ回入側の各端部同士を連結する回入側連結部２４と、アウタ側シリンダ部２１およびインナ側シリンダ部２２のロータ回転方向の各中間部同士を連結する中間連結部２５と、を有している。
　回出側連結部２３、回入側連結部２４および中間連結部２５は、いずれも、ディスクロータ１１をロータ径方向外側で跨ぐように配置されている。言い換えれば、キャリパ本体１５は、一対のアウタ側シリンダ部２１およびインナ側シリンダ部２２のロータ回転方向における端部においてディスクロータ１１を跨いでこれらアウタ側シリンダ部２１およびインナ側シリンダ部２２を連結する一対の回出側連結部２３および回入側連結部２４と；一対のアウタ側シリンダ部２１およびインナ側シリンダ部２２のロータ回転方向における中間部においてディスクロータ１１を跨いで一対のアウタ側シリンダ部２１およびインナ側シリンダ部２２を連結する中間連結部２５と；を有している。 As shown in FIG. 1, the caliper main body 15 includes an outer cylinder portion 21 arranged on the outer side of the disc rotor 11 in the rotor axial direction, and an inner cylinder portion 22 arranged on the inner side of the disc rotor 11. The outlet side connecting portion 23 that connects the ends of the outer cylinder portion 21 and the inner cylinder portion 22 on the rotor return side, and the rotor entry side of the outer cylinder portion 21 and the inner cylinder portion 22. It has a turn-in side connecting portion 24 for connecting the end portions, and an intermediate connecting portion 25 for connecting the intermediate portions of the outer side cylinder portion 21 and the inner side cylinder portion 22 in the rotor rotation direction.
The feeding side connecting portion 23, the feeding side connecting portion 24, and the intermediate connecting portion 25 are all arranged so as to straddle the disc rotor 11 on the outer side in the rotor radial direction. In other words, the caliper body 15 connects the outer cylinder portion 21 and the inner cylinder portion 22 across the disc rotor 11 at the ends of the pair of outer cylinder portions 21 and the inner cylinder portions 22 in the rotor rotation direction. A pair of turn-out side connecting portions 23 and a turn-in side connecting portion 24; a pair of outer-side cylinder portions straddling the disc rotor 11 at an intermediate portion between the pair of outer-side cylinder portions 21 and the inner-side cylinder portions 22 in the rotor rotation direction. It has an intermediate connecting portion 25 that connects 21 and an inner cylinder portion 22;
　キャリパ本体１５は、アウタ側シリンダ部２１、インナ側シリンダ部２２、回出側連結部２３、回入側連結部２４および中間連結部２５を、一体物の鋳物で形成したモノブロックキャリパである。よって、アウタ側シリンダ部２１およびインナ側シリンダ部２２は、回出側連結部２３、回入側連結部２４および中間連結部２５を介して、一体に形成されている。 The caliper body 15 is a monoblock caliper in which the outer side cylinder part 21, the inner side cylinder part 22, the feeding side connecting part 23, the turning side connecting part 24, and the intermediate connecting part 25 are formed of an integral casting. Therefore, the outer side cylinder portion 21 and the inner side cylinder portion 22 are integrally formed via the feeding side connecting portion 23, the turning side connecting portion 24, and the intermediate connecting portion 25.
　図６，図７に示すように、アウタ側シリンダ部２１は、ディスクロータ１１のアウタ側の面に対向して配置される。アウタ側シリンダ部２１は、図１，図３，図４に示すように、ロータ回転方向の一端である回出側連結部２３側に配置された取付ボス部３４と、ロータ回転方向の他端である回入側連結部２４側に配置された取付ボス部３５と、を有している。 As shown in FIGS. 6 and 7, the outer cylinder portion 21 is arranged so as to face the outer side surface of the disc rotor 11. As shown in FIGS. 1, 3 and 4, the outer cylinder portion 21 has a mounting boss portion 34 arranged on the rotation side connecting portion 23 side, which is one end in the rotor rotation direction, and the other end in the rotor rotation direction. It has a mounting boss portion 35 arranged on the entry side connecting portion 24 side.
　図２に示すように、アウタ側シリンダ部２１は、複数のピストン１６，１７をロータ回転方向に並べて収容するために、ロータ回転方向に沿って長い形状を有する。アウタ側シリンダ部２１には、ピストン１６，１７をロータ軸方向に沿って移動可能に収容する二カ所のシリンダボア３８，３９が、ロータ回転方向に並んで形成されている。 As shown in FIG. 2, the outer cylinder portion 21 has a long shape along the rotor rotation direction in order to accommodate the plurality of pistons 16 and 17 side by side in the rotor rotation direction. The outer cylinder portion 21 is formed with two cylinder bores 38 and 39 that accommodate the pistons 16 and 17 so as to be movable along the rotor axial direction, side by side in the rotor rotation direction.
　シリンダボア３８，３９は、互いに同径を有し、ロータ軸方向に沿って形成されている。シリンダボア３８，３９は、ピストン１６を収容するシリンダボア３８がロータ回転方向の回出側連結部２３側に、ピストン１７を収容するシリンダボア３９がロータ回転方向の回入側連結部２４側に、それぞれ配置されている。シリンダボア３８，３９は、ロータ軸方向において、ディスクロータ１１側が開口し、ディスクロータ１１とは反対側が閉塞している。シリンダボア３８，３９は、キャリパ本体１５のロータ回転方向の中心から等距離の位置、言い換えれば径方向基準線から等距離の位置に配置されている。 The cylinder bores 38 and 39 have the same diameter as each other and are formed along the rotor axial direction. The cylinder bores 38 and 39 are arranged such that the cylinder bore 38 accommodating the piston 16 is arranged on the exit side connecting portion 23 side in the rotor rotation direction and the cylinder bore 39 accommodating the piston 17 is arranged on the enter side connecting portion 24 side in the rotor rotation direction. Has been done. The cylinder bores 38 and 39 are open on the disc rotor 11 side and closed on the side opposite to the disc rotor 11 in the rotor axial direction. The cylinder bores 38 and 39 are arranged equidistant from the center of the caliper main body 15 in the rotor rotation direction, in other words, equidistant from the radial reference line.
　図１に示すように、アウタ側シリンダ部２１のロータ回転方向の中央位置には、給排口４１が形成されている。給排口４１は、図２に示すシリンダボア３８，３９にブレーキ液を給排する。給排口４１は、径方向基準線に対して平行に形成されている。 As shown in FIG. 1, a supply / discharge port 41 is formed at the center position of the outer cylinder portion 21 in the rotor rotation direction. The supply / discharge port 41 supplies / discharges the brake fluid to the cylinder bores 38 and 39 shown in FIG. The air supply / discharge port 41 is formed parallel to the radial reference line.
　取付ボス部３４には、マウント穴４４が、ロータ径方向に貫通して形成されている。取付ボス部３５には、マウント穴４５が、ロータ径方向に貫通して形成されている。これらマウント穴４４，４５は、径方向基準線に平行をなしており、キャリパ本体１５のロータ回転方向の中心から等距離の位置、言い換えれば径方向基準線から等距離の位置に、互いにロータ軸方向の位置を合わせて形成されている。キャリパ１２は、これらのマウント穴４４，４５に挿通される図示略の取付ボルトで車両の車体側に固定される、いわゆるラジアルマウントタイプである。 A mount hole 44 is formed in the mounting boss portion 34 so as to penetrate in the rotor radial direction. A mounting hole 45 is formed in the mounting boss portion 35 so as to penetrate in the rotor radial direction. These mount holes 44 and 45 are parallel to the radial reference line, and are equidistant from the center of the caliper body 15 in the rotor rotation direction, in other words, equidistant from the radial reference line. It is formed by aligning the positions in the directions. The caliper 12 is a so-called radial mount type that is fixed to the vehicle body side by mounting bolts (not shown) that are inserted into these mount holes 44 and 45.
　回出側連結部２３には、エア抜き用のブリーダプラグ４８が取り付けられるブリーダボス部４９が、形成されている。キャリパ本体１５は、このブリーダボス部４９が形成された回出側連結部２３が、鉛直方向上側に配置された状態で、ディスクロータ１１の車両前後方向後側に配置される。よって、車両の前進走行時には、キャリパ本体１５に対して、ディスクロータ１１が鉛直方向の下から上へと移動する。 A bleeder boss portion 49 to which a bleeder plug 48 for bleeding air is attached is formed on the feeding side connecting portion 23. The caliper main body 15 is arranged on the rear side of the disc rotor 11 in the vehicle front-rear direction with the feeding side connecting portion 23 on which the bleeder boss portion 49 is formed is arranged on the upper side in the vertical direction. Therefore, when the vehicle is traveling forward, the disc rotor 11 moves from the bottom to the top in the vertical direction with respect to the caliper main body 15.
　図６，図７に示すように、インナ側シリンダ部２２は、ディスクロータ１１のインナ側の面に対向して配置される。インナ側シリンダ部２２は、図３に示すように、複数のピストン１６，１７をロータ回転方向に並べて収容するために、ロータ回転方向に沿って長い形状を有している。インナ側シリンダ部２２には、ピストン１６，１７をロータ軸方向に移動可能となるように収容する、二カ所のシリンダボア５８，５９が、ロータ回転方向に並んで形成されている。 As shown in FIGS. 6 and 7, the inner cylinder portion 22 is arranged so as to face the inner side surface of the disc rotor 11. As shown in FIG. 3, the inner cylinder portion 22 has a long shape along the rotor rotation direction in order to accommodate the plurality of pistons 16 and 17 side by side in the rotor rotation direction. The inner cylinder portion 22 is formed with two cylinder bores 58 and 59, which accommodate the pistons 16 and 17 so as to be movable in the rotor axial direction, side by side in the rotor rotation direction.
　ピストン１６を収容するシリンダボア５８は、ロータ回転方向の回出側連結部２３側に配置されている。ピストン１７を収容するシリンダボア５９は、ロータ回転方向の回入側連結部２４側に配置されている。シリンダボア５８，５９は、ロータ軸方向のディスクロータ１１側に開口しており、ディスクロータ１１とは反対側が閉塞されている。シリンダボア５８，５９は、キャリパ本体１５のロータ回転方向の中心から等距離の位置、言い換えれば径方向基準線から等距離の位置に配置されている。図１に示すアウタ側シリンダ部２１の給排口４１は、図２に示すアウタ側シリンダ部２１のシリンダボア３８，３９に加えて、図３に示すインナ側シリンダ部２２のシリンダボア５８，５９に対しても、ブレーキ液を給排する。 The cylinder bore 58 accommodating the piston 16 is arranged on the rotation side connecting portion 23 side in the rotor rotation direction. The cylinder bore 59 accommodating the piston 17 is arranged on the entry side connecting portion 24 side in the rotor rotation direction. The cylinder bores 58 and 59 are open on the disc rotor 11 side in the rotor axial direction, and the side opposite to the disc rotor 11 is closed. The cylinder bores 58 and 59 are arranged equidistant from the center of the caliper main body 15 in the rotor rotation direction, in other words, equidistant from the radial reference line. The supply / discharge port 41 of the outer side cylinder portion 21 shown in FIG. 1 is provided with respect to the cylinder bores 58 and 59 of the inner side cylinder portion 22 shown in FIG. 3 in addition to the cylinder bores 38 and 39 of the outer side cylinder portion 21 shown in FIG. Even so, the brake fluid is supplied and discharged.
　キャリパ本体１５は、図１，図２，図４，図６に示すアウタ側シリンダ部２１と、図１，図３，図４，図６に示すインナ側シリンダ部２２とが、互いにロータ回転方向およびロータ径方向の位置を重ね合わせてロータ軸方向に対向して配置されている。図２に示すシリンダボア３８は、図３に示すシリンダボア５８と同軸に形成されている。図２に示すシリンダボア３９は、図３に示すシリンダボア５９と同軸に形成されている。 In the caliper main body 15, the outer cylinder portion 21 shown in FIGS. 1, 2, 4, and 6 and the inner cylinder portion 22 shown in FIGS. 1, 3, 4, and 6 are in the rotor rotation direction of each other. And the positions in the rotor radial direction are overlapped and arranged so as to face each other in the rotor axial direction. The cylinder bore 38 shown in FIG. 2 is formed coaxially with the cylinder bore 58 shown in FIG. The cylinder bore 39 shown in FIG. 2 is formed coaxially with the cylinder bore 59 shown in FIG.
　図１に示すように、回出側連結部２３は、そのロータ回転方向の回入側連結部２４側に、パッド摺動部３２Ａ、パッド摺動部３３Ｂおよび支持連結部５１を有している。パッド摺動部３２Ａは、ディスクロータ１１のアウタ側に配置されている。パッド摺動部３３Ｂは、ディスクロータ１１のインナ側に配置されている。支持連結部５１は、パッド摺動部３２Ａとパッド摺動部３３Ｂとの間に、これらを繋ぐように設けられている。パッド摺動部３２Ａとパッド摺動部３３Ｂとは、鏡面対称形状を有している。 As shown in FIG. 1, the turn-out side connecting portion 23 has a pad sliding portion 32A, a pad sliding portion 33B, and a support connecting portion 51 on the turn-in side connecting portion 24 side in the rotor rotation direction. .. The pad sliding portion 32A is arranged on the outer side of the disc rotor 11. The pad sliding portion 33B is arranged on the inner side of the disc rotor 11. The support connecting portion 51 is provided between the pad sliding portion 32A and the pad sliding portion 33B so as to connect them. The pad sliding portion 32A and the pad sliding portion 33B have a mirror-symmetrical shape.
　回入側連結部２４は、そのロータ回転方向の回出側連結部２３側に、パッド摺動部３２Ｂおよびパッド摺動部３３Ａを有している。パッド摺動部３３Ａは、ディスクロータ１１のアウタ側に配置されている。パッド摺動部３２Ｂは、ディスクロータ１１のインナ側に配置されている。パッド摺動部３３Ａとパッド摺動部３２Ｂとは、鏡面対称形状をなしている。キャリパ本体１５は、パッド摺動部３３Ａとパッド摺動部３３Ｂとの間が、ロータ径方向に貫通するパッド組付用空間５２となっている。パッド組付用空間５２は、ロータ径方向の外側および内側とロータ回出側とに開口している。言い換えれば、キャリパ本体１５は、パッド組付用空間５２のロータ軸方向の両側に、一対のパッド摺動部３３Ａ，３２Ｂを備えている。 The turn-in side connecting portion 24 has a pad sliding portion 32B and a pad sliding portion 33A on the turn-out side connecting portion 23 side in the rotor rotation direction. The pad sliding portion 33A is arranged on the outer side of the disc rotor 11. The pad sliding portion 32B is arranged on the inner side of the disc rotor 11. The pad sliding portion 33A and the pad sliding portion 32B have a mirror-symmetrical shape. The caliper main body 15 has a pad assembling space 52 that penetrates between the pad sliding portion 33A and the pad sliding portion 33B in the rotor radial direction. The pad assembly space 52 is open to the outside and inside in the rotor radial direction and to the rotor rotation side. In other words, the caliper main body 15 is provided with a pair of pad sliding portions 33A and 32B on both sides of the pad assembly space 52 in the rotor axial direction.
　回出側連結部２３は、パッド摺動部３２Ａ，３３Ｂを、ロータ軸方向におけるディスクロータ１１の両側に有している。回入側連結部２４は、パッド摺動部３２Ｂ，３３Ａを、ロータ軸方向におけるディスクロータ１１の両側に有している。言い換えれば、回出側連結部２３および回入側連結部２４に、四箇所のパッド摺動部３２Ａ，３３Ｂ，３２Ｂ，３３Ａが設けられている。また、回出側連結部２３は、ディスクロータ１１とロータ軸方向の位置を重ね合わせた支持連結部５１を有している。回入側連結部２４は、ディスクロータ１１とロータ軸方向の位置を重ね合わせたパッド組付用空間５２を有している。キャリパ本体１５において、パッド摺動部３２Ａ，３３Ｂおよび支持連結部５１は、パッド摺動部３２Ｂ，３３Ａよりもロータ回出側に配置されている。 The feeding side connecting portion 23 has pad sliding portions 32A and 33B on both sides of the disc rotor 11 in the rotor axial direction. The entry-side connecting portion 24 has pad sliding portions 32B and 33A on both sides of the disc rotor 11 in the rotor axial direction. In other words, the feeding side connecting portion 23 and the turning side connecting portion 24 are provided with four pad sliding portions 32A, 33B, 32B, 33A. Further, the feeding side connecting portion 23 has a supporting connecting portion 51 in which the disc rotor 11 and the position in the rotor axial direction are overlapped with each other. The entry-in side connecting portion 24 has a pad assembly space 52 in which the disc rotor 11 and the position in the rotor axial direction are overlapped with each other. In the caliper main body 15, the pad sliding portions 32A and 33B and the support connecting portion 51 are arranged on the rotor rotation side with respect to the pad sliding portions 32B and 33A.
　パッド摺動部３２Ａと支持連結部５１とパッド摺動部３３Ｂとは、ロータ回転方向およびロータ径方向の位置を重ね合わせて、ロータ軸方向に連続している。パッド摺動部３３Ａとパッド摺動部３２Ｂとは、ロータ回転方向およびロータ径方向の位置を重ね合わせて、ロータ軸方向に対向している。図４に示すように、パッド摺動部３２Ａおよびパッド摺動部３３Ａと、パッド摺動部３２Ｂおよびパッド摺動部３３Ｂとの間に、ディスクロータ１１が配置されている。支持連結部５１は、ディスクロータ１１のロータ径方向外側で、パッド摺動部３２Ａとパッド摺動部３３Ｂとの間を繋いでいる。パッド組付用空間５２は、ディスクロータ１１のロータ径方向外側で、パッド摺動部３２Ｂとパッド摺動部３３Ａとの間に配置されている。 The pad sliding portion 32A, the support connecting portion 51, and the pad sliding portion 33B are continuous in the rotor axial direction by superimposing the positions in the rotor rotation direction and the rotor radial direction. The pad sliding portion 33A and the pad sliding portion 32B face each other in the rotor axial direction by overlapping the positions in the rotor rotation direction and the rotor radial direction. As shown in FIG. 4, the disc rotor 11 is arranged between the pad sliding portion 32A and the pad sliding portion 33A and the pad sliding portion 32B and the pad sliding portion 33B. The support connecting portion 51 connects the pad sliding portion 32A and the pad sliding portion 33B on the outer side in the rotor radial direction of the disc rotor 11. The pad assembly space 52 is arranged between the pad sliding portion 32B and the pad sliding portion 33A on the outer side in the rotor radial direction of the disc rotor 11.
　キャリパ本体１５には、アウタ側シリンダ部２１、インナ側シリンダ部２２、パッド摺動部３２Ａ，３２Ｂ，３３Ａ，３３Ｂおよび支持連結部５１で囲まれて、略中央に、ロータ径方向両側に開口するパッド配置空間６１が形成されている。パッド配置空間６１は、ロータ径方向内側には全体が開口している。図１に示すように、中間連結部２５は、キャリパ本体１５のロータ回転方向の中央位置に設けられている。中間連結部２５は、パッド配置空間６１をそのロータ径方向外側においてロータ軸方向に跨いで設けられている。よって、パッド配置空間６１のロータ径方向外側は、ロータ回出側のパッド摺動部３２Ａ，３３Ｂおよび支持連結部５１と中間連結部２５との間部分と；ロータ回出側のパッド摺動部３３Ａ，３２Ｂと中間連結部２５との間部分と；が開口している。 The caliper body 15 is surrounded by an outer cylinder portion 21, an inner cylinder portion 22, pad sliding portions 32A, 32B, 33A, 33B and a support connecting portion 51, and opens substantially in the center on both sides in the rotor radial direction. A pad arrangement space 61 is formed. The entire pad arrangement space 61 is open inside in the radial direction of the rotor. As shown in FIG. 1, the intermediate connecting portion 25 is provided at the center position of the caliper main body 15 in the rotor rotation direction. The intermediate connecting portion 25 is provided with a pad arrangement space 61 straddling the rotor axial direction on the outer side in the rotor radial direction. Therefore, the outer side of the pad arrangement space 61 in the rotor radial direction is the pad sliding portions 32A and 33B on the rotor rotating side and the portion between the support connecting portion 51 and the intermediate connecting portion 25; the pad sliding portion on the rotor rotating side. The portion between 33A and 32B and the intermediate connecting portion 25; is open.
　パッド摺動部３３Ａとパッド摺動部３２Ｂとの間のパッド組付用空間５２は、パッド配置空間６１に開口し、パッド配置空間６１と繋がっている。パッド組付用空間５２は、パッド配置空間６１のロータ軸方向中央からロータ回入側に凹む形状をなしている。図２，図３に示すシリンダボア３８，３９，５８，５９は、図４に示すパッド配置空間６１に開口している。ディスクロータ１１は、パッド配置空間６１のロータ軸方向の中央位置を、ロータ回転方向に横断している。 The pad assembly space 52 between the pad sliding portion 33A and the pad sliding portion 32B opens into the pad arrangement space 61 and is connected to the pad arrangement space 61. The pad assembly space 52 has a shape that is recessed from the center of the pad arrangement space 61 in the rotor axial direction toward the rotor entry side. The cylinder bores 38, 39, 58, 59 shown in FIGS. 2 and 3 are open to the pad arrangement space 61 shown in FIG. The disc rotor 11 crosses the central position of the pad arrangement space 61 in the rotor axial direction in the rotor rotation direction.
　ここで、キャリパ本体１５は、図１に示すアウタ側シリンダ部２１、インナ側シリンダ部２２、回出側連結部２３、回入側連結部２４および中間連結部２５が、図３に示すインナ側シリンダ部２２のシリンダボア５８，５９の底部を除いて鋳造により一体成形されている。そして、インナ側シリンダ部２２のこれら二カ所のシリンダボア５８，５９の底部の鋳造された開口部を介して、シリンダボア３８，３９，５８，５９の内面が切削加工される。この後、インナ側シリンダ部２２のシリンダボア５８，５９の底部の開口部に別体の閉塞部材を摩擦攪拌接合で接合させて開口部を閉塞して底部を形成することにより、キャリパ本体１５が形成される。なお、アウタ側シリンダ部２１、インナ側シリンダ部２２、回出側連結部２３、回入側連結部２４および中間連結部２５の全体を、鋳造により一体成形し、さらに、アウタ側シリンダ部２１およびインナ側シリンダ部２２の間のパッド配置空間６１からシリンダボア３８，３９，５８，５９の内面を切削加工しても良い。 Here, in the caliper main body 15, the outer side cylinder portion 21, the inner side cylinder portion 22, the feeding side connecting portion 23, the turning side connecting portion 24, and the intermediate connecting portion 25 shown in FIG. 1 are on the inner side shown in FIG. Except for the bottoms of the cylinder bores 58 and 59 of the cylinder portion 22, the cylinder portions 22 are integrally molded by casting. Then, the inner surfaces of the cylinder bores 38, 39, 58, 59 are machined through the cast openings at the bottoms of the two cylinder bores 58, 59 of the inner cylinder portion 22. After that, the caliper main body 15 is formed by joining a separate closing member to the opening at the bottom of the cylinder bores 58 and 59 of the inner cylinder portion 22 by friction stir welding to close the opening and form the bottom. Will be done. The outer cylinder portion 21, the inner cylinder portion 22, the feeding side connecting portion 23, the turning side connecting portion 24, and the intermediate connecting portion 25 are integrally molded by casting, and further, the outer cylinder portion 21 and the outer connecting portion 21 and the intermediate connecting portion 25 are integrally molded. The inner surface of the cylinder bores 38, 39, 58, 59 may be machined from the pad arrangement space 61 between the inner cylinder portions 22.
　図５に示すように、回入側連結部２４のインナ側のパッド摺動部３２Ｂには、パッド配置空間６１側に向くトルク受面７１Ｂと、ディスクロータ１１側に向くロータ対向面７２Ｂと、ロータ径方向外側かつロータ回出側に向く係止面部７３Ｂとが形成されている。トルク受面７１Ｂは、径方向基準線に平行に広がる平坦面であり、ロータ軸線にも平行に広がっている。トルク受面７１Ｂは、パッド配置空間６１を形成する。ロータ対向面７２Ｂは、パッド組付用空間５２を形成する。ロータ対向面７２Ｂは、ロータ軸線に対して垂直に広がっている。係止面部７３Ｂは、ロータ軸線に平行に広がる平坦面であり、基準線方向においてロータ径方向外側ほど径方向基準線から離れるように傾斜している。係止面部７３Ｂとトルク受面７１Ｂとは、鈍角をなして交差している。 As shown in FIG. 5, the pad sliding portion 32B on the inner side of the entry side connecting portion 24 includes a torque receiving surface 71B facing the pad arrangement space 61 side and a rotor facing surface 72B facing the disc rotor 11 side. A locking surface portion 73B that faces the rotor radial direction and the rotor rotation side is formed. The torque receiving surface 71B is a flat surface extending parallel to the radial reference line, and extends parallel to the rotor axis. The torque receiving surface 71B forms a pad arrangement space 61. The rotor facing surface 72B forms a pad assembly space 52. The rotor facing surface 72B extends perpendicular to the rotor axis. The locking surface portion 73B is a flat surface extending parallel to the rotor axis, and is inclined so as to be farther from the radial reference line toward the outside in the rotor radial direction in the reference line direction. The locking surface portion 73B and the torque receiving surface 71B intersect at an obtuse angle.
　回入側連結部２４には、係止面部７３Ｂのインナ側の端縁部からロータ径方向外方かつロータ回出側に立ち上がる壁面部７４Ｂが形成されている。壁面部７４Ｂは、ほぼロータ軸線に直交して広がっている。 The entry-side connecting portion 24 is formed with a wall surface portion 74B that rises outward from the inner edge of the locking surface portion 73B in the rotor radial direction and toward the rotor rotation side. The wall surface portion 74B extends substantially orthogonal to the rotor axis.
　回出側連結部２３の支持連結部５１には、ロータ径方向外側かつロータ回入側に向く係止面部５３が形成されている。係止面部５３は、ロータ軸線に平行に広がる平坦面であり、基準線方向において、ロータ径方向外側ほど、径方向基準線から離れるように傾斜している。 The support connecting portion 51 of the feeding side connecting portion 23 is formed with a locking surface portion 53 that is outward in the rotor radial direction and faces the rotor turning side. The locking surface portion 53 is a flat surface extending parallel to the rotor axis, and is inclined so as to be farther from the radial reference line toward the outside in the rotor radial direction in the reference line direction.
　図４に示すように、回出側連結部２３のインナ側のパッド摺動部３３Ｂには、パッド配置空間６１側に向くトルク受面８１Ｂと、ディスクロータ１１側に向くロータ対向面８２Ｂとが形成されている。また、パッド摺動部３３Ｂには、図１に示すように、ロータ径方向外側に向く係止面部８３Ｂが形成されている。図５に示すトルク受面８１Ｂは、径方向基準線に平行に広がる平坦面であり、ロータ軸線にも平行に広がっている。トルク受面８１Ｂは、パッド配置空間６１を形成する。図１に示す係止面部８３Ｂは、支持連結部５１の係止面部５３と同一平面に配置されている。よって、係止面部８３Ｂも、ロータ軸線に平行に広がる平坦面であり、ロータ径方向外側かつロータ回入側に向いていて、基準線方向においてロータ径方向外側ほど径方向基準線から離れるように傾斜している。係止面部８３Ｂとトルク受面８１Ｂとは鈍角をなして交差している。この交差角度は、係止面部７３Ｂとトルク受面７１Ｂとがなす角と同等である。 As shown in FIG. 4, the pad sliding portion 33B on the inner side of the feeding side connecting portion 23 has a torque receiving surface 81B facing the pad arrangement space 61 side and a rotor facing surface 82B facing the disc rotor 11 side. It is formed. Further, as shown in FIG. 1, the pad sliding portion 33B is formed with a locking surface portion 83B facing outward in the rotor radial direction. The torque receiving surface 81B shown in FIG. 5 is a flat surface extending parallel to the radial reference line, and extends parallel to the rotor axis. The torque receiving surface 81B forms a pad arrangement space 61. The locking surface portion 83B shown in FIG. 1 is arranged on the same plane as the locking surface portion 53 of the support connecting portion 51. Therefore, the locking surface portion 83B is also a flat surface extending parallel to the rotor axis, facing the rotor radial direction outer side and the rotor turning side, and the rotor radial direction outer side is separated from the radial reference line in the reference line direction. It is tilted. The locking surface portion 83B and the torque receiving surface 81B intersect at an obtuse angle. This crossing angle is equivalent to the angle formed by the locking surface portion 73B and the torque receiving surface 71B.
　回出側連結部２３には、係止面部８３Ｂのインナ側の端縁部からロータ径方向外方に立ち上がる壁面部８４Ｂが形成されている。壁面部８４Ｂは、ロータ軸線にほぼ直交して広がっている。 The rotation side connecting portion 23 is formed with a wall surface portion 84B that rises outward in the rotor radial direction from the end edge portion on the inner side of the locking surface portion 83B. The wall surface portion 84B extends substantially orthogonal to the rotor axis.
　キャリパ本体１５は、インナ側のパッド摺動部３２Ｂ，３３Ｂの間に、パッド配置空間６１側に向く中間壁面部８６Ｂが形成されている。中間壁面部８６Ｂは、ロータ軸線に直交して広がる平面状であり、パッド配置空間６１を形成する。 In the caliper main body 15, an intermediate wall surface portion 86B facing the pad arrangement space 61 side is formed between the pad sliding portions 32B and 33B on the inner side. The intermediate wall surface portion 86B has a planar shape extending orthogonal to the rotor axis, and forms a pad arrangement space 61.
　回入側連結部２４のアウタ側にあるパッド摺動部３３Ａには、パッド配置空間６１側に向くトルク受面８１Ａと、ディスクロータ１１側に向くロータ対向面８２Ａと、ロータ径方向外側に向く係止面部８３Ａとが形成されている。
　トルク受面８１Ａは、径方向基準線に平行に広がる平坦面であり、ロータ軸線にも平行に広がっている。トルク受面８１Ａは、パッド配置空間６１を形成する。ロータ対向面８２Ａは、パッド組付用空間５２を形成する。トルク受面８１Ａは、トルク受面７１Ｂと同一平面に配置されている。ロータ対向面８２Ａは、ロータ軸線に対して垂直に広がっている。係止面部８３Ａは、ロータ軸線に平行に広がる平坦面であり、係止面部７３Ｂと同一平面に配置されている。よって、係止面部８３Ａも、ロータ径方向外側かつロータ回出側に向いており、基準線方向においてロータ径方向外側ほど径方向基準線から離れるように傾斜している。係止面部８３Ａとトルク受面８１Ａとは鈍角をなして交差している。この交差角度は、係止面部７３Ｂとトルク受面７１Ｂとがなす角と同等である。 The pad sliding portion 33A on the outer side of the entry side connecting portion 24 has a torque receiving surface 81A facing the pad arrangement space 61 side, a rotor facing surface 82A facing the disc rotor 11 side, and a rotor facing surface facing outward in the rotor radial direction. A locking surface portion 83A is formed.
The torque receiving surface 81A is a flat surface extending parallel to the radial reference line, and extends parallel to the rotor axis. The torque receiving surface 81A forms a pad arrangement space 61. The rotor facing surface 82A forms a pad assembly space 52. The torque receiving surface 81A is arranged on the same plane as the torque receiving surface 71B. The rotor facing surface 82A extends perpendicular to the rotor axis. The locking surface portion 83A is a flat surface extending parallel to the rotor axis, and is arranged on the same plane as the locking surface portion 73B. Therefore, the locking surface portion 83A is also oriented outward in the rotor radial direction and toward the rotor rotation side, and is inclined so as to be farther from the radial reference line toward the outer side in the rotor radial direction in the reference line direction. The locking surface portion 83A and the torque receiving surface 81A intersect at an obtuse angle. This crossing angle is equivalent to the angle formed by the locking surface portion 73B and the torque receiving surface 71B.
　回入側連結部２４には、係止面部８３Ａのアウタ側の端縁部からロータ径方向外方でかつ、ロータ回出側に立ち上がる壁面部８４Ａが形成されている。壁面部８４Ａは、ほぼロータ軸線に直交して広がっており、壁面部７４Ｂと対向している。 The entry-side connecting portion 24 is formed with a wall surface portion 84A that rises outward from the outer edge of the locking surface portion 83A in the rotor radial direction and toward the rotor rotation side. The wall surface portion 84A extends substantially orthogonal to the rotor axis and faces the wall surface portion 74B.
　ロータ対向面８２Ａとロータ対向面７２Ｂとは、ロータ径方向およびロータ回転方向の位置を合わせてロータ軸方向に対向している。回入側連結部２４は、ロータ対向面８２Ａとロータ対向面７２Ｂとの間に、パッド組付用空間５２を形成する中間面８８が形成されている。中間面８８は、径方向基準線に平行に広がる平坦面であり、ロータ軸線にも平行に広がっている。 The rotor facing surface 82A and the rotor facing surface 72B face each other in the rotor axial direction by aligning the positions in the rotor radial direction and the rotor rotation direction. The entry-in side connecting portion 24 is formed with an intermediate surface 88 forming a pad assembly space 52 between the rotor facing surface 82A and the rotor facing surface 72B. The intermediate surface 88 is a flat surface extending parallel to the radial reference line, and extends parallel to the rotor axis.
　図４に示すように、回出側連結部２３のアウタ側のパッド摺動部３２Ａには、パッド配置空間６１側を向くトルク受面７１Ａと、ディスクロータ１１側を向くロータ対向面７２Ａとが形成されている。また、パッド摺動部３２Ａには、図１に示すように、ロータ径方向外側に向く係止面部７３Ａが形成されている。トルク受面７１Ａは、径方向基準線に平行に広がる平坦面であり、ロータ軸線にも平行に広がっている。トルク受面７１Ａは、トルク受面８１Ｂと同一平面に配置されている。トルク受面７１Ａは、パッド配置空間６１を形成する。係止面部７３Ａは、係止面部５３および係止面部８３Ｂと同一平面に配置されている。よって、係止面部７３Ａは、ロータ軸線に平行に広がる平坦面である。係止面部７３Ａは、ロータ径方向外側かつロータ回入側に向いていて、基準線方向においてロータ径方向外側ほど径方向基準線から離れるように傾斜している。係止面部７３Ａとトルク受面７１Ａとは鈍角をなして交差している。この交差角度は、係止面部７３Ｂとトルク受面７１Ｂとのなす角と同等の角度となっている。 As shown in FIG. 4, the pad sliding portion 32A on the outer side of the feeding side connecting portion 23 includes a torque receiving surface 71A facing the pad arrangement space 61 side and a rotor facing surface 72A facing the disc rotor 11 side. It is formed. Further, as shown in FIG. 1, the pad sliding portion 32A is formed with a locking surface portion 73A facing outward in the rotor radial direction. The torque receiving surface 71A is a flat surface extending parallel to the radial reference line, and extends parallel to the rotor axis. The torque receiving surface 71A is arranged on the same plane as the torque receiving surface 81B. The torque receiving surface 71A forms a pad arrangement space 61. The locking surface portion 73A is arranged on the same plane as the locking surface portion 53 and the locking surface portion 83B. Therefore, the locking surface portion 73A is a flat surface extending parallel to the rotor axis. The locking surface portion 73A is oriented outward in the rotor radial direction and toward the rotor entry side, and is inclined so as to be farther from the radial reference line toward the outer side in the rotor radial direction in the reference line direction. The locking surface portion 73A and the torque receiving surface 71A intersect at an obtuse angle. This intersection angle is the same as the angle formed by the locking surface portion 73B and the torque receiving surface 71B.
　回出側連結部２３には、係止面部７３Ａのアウタ側の端縁部からロータ径方向外方かつロータ回入側に立ち上がる、壁面部７４Ａが形成されている。壁面部７４Ａは、ロータ軸線にほぼ直交して広がっており、壁面部８４Ｂと対向している。 The rotation side connecting portion 23 is formed with a wall surface portion 74A that rises from the outer edge portion of the locking surface portion 73A on the outer side in the rotor radial direction and on the rotor entry side. The wall surface portion 74A extends substantially orthogonal to the rotor axis and faces the wall surface portion 84B.
　キャリパ本体１５は、アウタ側のパッド摺動部３２Ａ，３３Ａの間に、パッド配置空間６１側を向く中間壁面部８６Ａが形成されている。中間壁面部８６Ａは、ロータ軸線に直交して広がる平面状であり、パッド配置空間６１を形成する。中間壁面部８６Ａは、ロータ径方向およびロータ回転方向の位置を中間壁面部８６Ｂと合わせており、ロータ軸方向に対向している。 In the caliper main body 15, an intermediate wall surface portion 86A facing the pad arrangement space 61 side is formed between the pad sliding portions 32A and 33A on the outer side. The intermediate wall surface portion 86A has a planar shape extending orthogonal to the rotor axis, and forms a pad arrangement space 61. The intermediate wall surface portion 86A aligns the positions in the rotor radial direction and the rotor rotation direction with the intermediate wall surface portion 86B and faces the rotor axial direction.
　キャリパ本体１５には、パッドスプリング１０１が、中間連結部２５に係止されて取り付けられている。キャリパ本体１５は、このパッドスプリング１０１により、互いに同形状を有する一対のパッド１０２を支持している。これらパッド１０２は、ディスクロータ１１に対向配置される。一方のパッド１０２が、アウタ側シリンダ部２１とディスクロータ１１との間に配置されている。他方のパッド１０２が、インナ側シリンダ部２２とディスクロータ１１との間に配置されている。 A pad spring 101 is locked to the intermediate connecting portion 25 and attached to the caliper main body 15. The caliper main body 15 supports a pair of pads 102 having the same shape as each other by the pad spring 101. These pads 102 are arranged to face the disc rotor 11. One pad 102 is arranged between the outer cylinder portion 21 and the disc rotor 11. The other pad 102 is arranged between the inner cylinder portion 22 and the disc rotor 11.
　パッドスプリング１０１は、一定板厚の板材からプレス成形により打ち抜かれ折り曲げられて形成されるものである。パッドスプリング１０１は、図５に示す基板部１１１と、係合板部１１２と、係合板部１１３と、図１に示す一対の延出板部１１４，１１５と、一対の延出板部１１６，１１７と、連結板部１１８と、連結板部１１９とを有している。
　図５に示す基板部１１１は、中間連結部２５と一対のパッド１０２との間に配置されて中間連結部２５に当接している。係合板部１１２は、基板部１１１のロータ回出側の端縁部からロータ径方向外方に延出して中間連結部２５に係合している。係合板部１１３は、基板部１１１のロータ回入側の端縁部からロータ径方向外方に延出して中間連結部２５に係合している。これにより、係合板部１１２，１１３が中間連結部２５を挟持することになる。その結果、パッドスプリング１０１がキャリパ本体１５に取り付けられる。 The pad spring 101 is formed by punching and bending a plate material having a constant thickness by press molding. The pad spring 101 includes a substrate portion 111 shown in FIG. 5, an engaging plate portion 112, an engaging plate portion 113, a pair of extending plate portions 114, 115 shown in FIG. 1, and a pair of extending plate portions 116, 117. And a connecting plate portion 118 and a connecting plate portion 119.
The substrate portion 111 shown in FIG. 5 is arranged between the intermediate connecting portion 25 and the pair of pads 102 and is in contact with the intermediate connecting portion 25. The engaging plate portion 112 extends outward in the rotor radial direction from the end edge portion on the rotor rotation side of the substrate portion 111 and engages with the intermediate connecting portion 25. The engaging plate portion 113 extends outward in the rotor radial direction from the end edge portion on the rotor entry side of the substrate portion 111 and engages with the intermediate connecting portion 25. As a result, the engaging plate portions 112 and 113 sandwich the intermediate connecting portion 25. As a result, the pad spring 101 is attached to the caliper body 15.
　図１に示すロータ回出側の一対の延出板部１１４，１１５は、図５に示す基板部１１１のロータ回出側の端縁部からロータ回出側に延出している。図１に示すように、連結板部１１８は、延出板部１１４，１１５のロータ回出側の先端部同士を連結している。延出板部１１４，１１５は、係合板部１１２のロータ軸方向の両側に配置されている。延出板部１１４，１１５および連結板部１１８は、図５に示すように、ロータ回出側がロータ径方向内方に突出するように屈曲している。 The pair of extension plate portions 114 and 115 on the rotor rotation side shown in FIG. 1 extend from the end edge portion of the substrate portion 111 on the rotor rotation side shown in FIG. 5 to the rotor rotation side. As shown in FIG. 1, the connecting plate portion 118 connects the tip portions of the extension plate portions 114 and 115 on the rotor rotation side to each other. The extending plate portions 114 and 115 are arranged on both sides of the engaging plate portion 112 in the rotor axial direction. As shown in FIG. 5, the extension plate portions 114, 115 and the connecting plate portion 118 are bent so that the rotor rotation side projects inward in the rotor radial direction.
　図１に示すロータ回入側の一対の延出板部１１６，１１７は、図５に示す基板部１１１のロータ回入側の端縁部からロータ回入側に延出している。図１に示すように、連結板部１１９は、延出板部１１６，１１７のロータ回入側の先端部同士を連結している。延出板部１１６，１１７は、係合板部１１３のロータ軸方向の両側に配置されている。 The pair of extension plate portions 116, 117 on the rotor entry side shown in FIG. 1 extend from the end edge portion of the substrate portion 111 on the rotor entry side shown in FIG. 5 to the rotor entry side. As shown in FIG. 1, the connecting plate portion 119 connects the tip portions of the extension plate portions 116 and 117 on the rotor entry side to each other. The extension plate portions 116 and 117 are arranged on both sides of the engagement plate portion 113 in the rotor axial direction.
　パッドスプリング１０１は、アウタ側の延出板部１１４，１１６が、アウタ側のパッド１０２に当接してこれをロータ径方向内方に押圧する。その際に、ロータ回出側の延出板部１１４が、アウタ側のパッド１０２をロータ回出側にも押圧する。パッドスプリング１０１は、インナ側の延出板部１１５，１１７がインナ側のパッド１０２に当接してこれをロータ径方向内方に押圧する。その際に、ロータ回出側の延出板部１１５が、インナ側のパッド１０２をロータ回出側にも押圧する。 In the pad spring 101, the extension plate portions 114 and 116 on the outer side come into contact with the pad 102 on the outer side and press it inward in the rotor radial direction. At that time, the extension plate portion 114 on the rotor rotation side presses the pad 102 on the outer side also on the rotor rotation side. In the pad spring 101, the extension plate portions 115 and 117 on the inner side come into contact with the pad 102 on the inner side and press the pad 102 inward in the rotor radial direction. At that time, the extension plate portion 115 on the rotor rotation side presses the pad 102 on the inner side also on the rotor rotation side.
　一対のパッド１０２は、互いに同形状を有する共通部品である。パッド１０２は、図５に示すように、ロータ回転方向に長い裏板１２１と、裏板１２１の厚さ方向一側の平面状の貼付面１２５に貼付されるライニング材１２２とを有している。パッド１０２は、裏板１２１において、パッドスプリング１０１に付勢されてキャリパ本体１５に支持され、ライニング材１２２においてディスクロータ１１に接触して車両に制動力を付与する。 The pair of pads 102 are common parts having the same shape as each other. As shown in FIG. 5, the pad 102 has a back plate 121 that is long in the rotor rotation direction and a lining material 122 that is attached to the flat attachment surface 125 on one side in the thickness direction of the back plate 121. .. In the back plate 121, the pad 102 is urged by the pad spring 101 and supported by the caliper main body 15, and contacts the disc rotor 11 in the lining material 122 to apply a braking force to the vehicle.
　図４に示すように、パッド１０２は、裏板１２１の貼付面１２５と反対側の位置にある平面状の裏面１２６において、ピストン１６，１７に押圧される。パッド１０２は、ライニング材１２２の裏板１２１とは反対側の位置にある平面状の先端面１２７において、ディスクロータ１１に接触する。ライニング材１２２の先端面１２７は、裏板１２１の貼付面１２５および裏面１２６と平行な平面である。図５に示すように、ライニング材１２２は、ロータ回転方向両側にある側面１２８が平面状であり互いに平行になっている。両側の側面１２８は、裏板１２１の貼付面１２５に対して垂直をなしている。 As shown in FIG. 4, the pad 102 is pressed by the pistons 16 and 17 on the flat back surface 126 located on the opposite side of the back plate 121 from the sticking surface 125. The pad 102 comes into contact with the disc rotor 11 at the flat tip surface 127 located on the opposite side of the back plate 121 of the lining material 122. The front end surface 127 of the lining material 122 is a flat surface parallel to the sticking surface 125 and the back surface 126 of the back plate 121. As shown in FIG. 5, in the lining material 122, the side surfaces 128 on both sides in the rotor rotation direction are flat and parallel to each other. The side surfaces 128 on both sides are perpendicular to the sticking surface 125 of the back plate 121.
　裏板１２１は、一定板厚となっており、ライニング材１２２が貼付される主板部１３０と、主板部１３０のロータ径方向外側のロータ回転方向両端側からロータ回転方向両外側に延出する一対の延出部１３１，１３２と、を有している。主板部１３０は、ロータ回転方向に長い略長方形状をなしており、延出部１３１，１３２は、主板部１３０の長手方向の両側であるロータ回転方向の両端部側から主板部１３０の長手方向に対して傾いた方向に延出している。主板部１３０の長手方向は、裏板１２１の長手方向であり、パッド１０２の長手方向である。よって、裏板１２１には、ロータ回転方向両端部側であってロータ径方向外側に、パッド１０２の長手方向に対して傾いた方向に延出する一対の延出部１３１，１３２が形成されている。裏板１２１は、主板部１３０の外形が鏡面対称の形状をなしており、延出部１３１，１３２が鏡面対称の形状をなしている。 The back plate 121 has a constant plate thickness, and is a pair of a main plate portion 130 to which the lining material 122 is attached and a pair extending from both ends in the rotor rotation direction on the outer side in the rotor radial direction of the main plate portion 130 to both outer sides in the rotor rotation direction. It has the extension portions 131 and 132 of the above. The main plate portion 130 has a substantially rectangular shape that is long in the rotor rotation direction, and the extending portions 131 and 132 are both sides of the main plate portion 130 in the longitudinal direction from both ends in the rotor rotation direction in the longitudinal direction of the main plate portion 130. It extends in a direction that is tilted with respect to. The longitudinal direction of the main plate portion 130 is the longitudinal direction of the back plate 121, and is the longitudinal direction of the pad 102. Therefore, the back plate 121 is formed with a pair of extending portions 131, 132 extending in a direction inclined with respect to the longitudinal direction of the pad 102 on both ends in the rotor rotation direction and outside in the rotor radial direction. There is. The back plate 121 has a mirror-symmetrical outer shape of the main plate 130, and the extending portions 131 and 132 have a mirror-symmetrical shape.
　一方の延出部１３１は、主板部１３０のロータ回転方向の一端部側であってロータ径方向外側から主板部１３０の長手方向に沿って主板部１３０から離れる方向に延出している。一方の延出部１３１は、延出先端側ほど、基準線方向においてロータ径方向外側に位置するように傾斜している。
　他方の延出部１３２は、主板部１３０のロータ回転方向の他端部側であってロータ径方向外側から主板部１３０の長手方向に沿って主板部１３０から離れる方向に延出している。他方の延出部１３２は、延出先端側ほど、基準線方向においてロータ径方向外側に位置するように傾斜している。 One of the extending portions 131 is one end side of the main plate portion 130 in the rotor rotation direction and extends in a direction away from the main plate portion 130 along the longitudinal direction of the main plate portion 130 from the outside in the rotor radial direction. On the other hand, the extension portion 131 is inclined so as to be located on the outer side in the rotor radial direction in the reference line direction toward the extension tip side.
The other extending portion 132 extends from the outside in the rotor radial direction to the other end side of the main plate portion 130 in the rotor rotation direction in a direction away from the main plate portion 130 along the longitudinal direction of the main plate portion 130. The other extension portion 132 is inclined so as to be located on the outer side in the rotor radial direction in the reference line direction toward the extension tip side.
　主板部１３０は、延出部１３１の根元位置となる長手方向一側に、主板部１３０の長手方向に対して垂直に広がる平坦面である側面部１４１を有している。また、主板部１３０は、延出部１３２の根元位置となる長手方向他側に、主板部１３０の長手方向に対して垂直に広がる平坦面である側面部１４２を有している。主板部１３０は、ロータ径方向外側に、ロータ径方向外側に向かって突出するように湾曲する湾曲面である外面部１４３を有している。側面部１４１，１４２および外面部１４３は、いずれも、裏板１２１の板厚方向に広がる平坦面である。側面部１４１，１４２は、互いに平行であり、ライニング材１２２の一対の側面１２８とも平行である。 The main plate portion 130 has a side surface portion 141 which is a flat surface extending perpendicularly to the longitudinal direction of the main plate portion 130 on one side in the longitudinal direction which is the root position of the extension portion 131. Further, the main plate portion 130 has a side surface portion 142 which is a flat surface extending perpendicularly to the longitudinal direction of the main plate portion 130 on the other side in the longitudinal direction which is the root position of the extension portion 132. The main plate portion 130 has an outer surface portion 143 which is a curved surface curved so as to project outward in the rotor radial direction on the outer side in the rotor radial direction. Both the side surface portions 141 and 142 and the outer surface portion 143 are flat surfaces extending in the plate thickness direction of the back plate 121. The side surface portions 141 and 142 are parallel to each other and are also parallel to the pair of side surface 128 of the lining material 122.
　延出部１３１は、側面部１４１と外面部１４３との間から延出している。延出部１３１は、裏板１２１を板厚方向から見て略菱形の形状をなしている。延出部１３１は、ロータ回転方向外側にあってロータ径方向内側かつロータ回転方向外側に向く面部１５１と、ロータ回転方向内側にあってロータ径方向外側かつロータ回転方向内側に向く面部１５２と、ロータ径方向外側にあってロータ径方向外側に向く面部１５３とを有している。これら面部１５１，１５２，１５３は、いずれも、裏板１２１の板厚方向に広がる平坦面であり、ロータ軸方向に沿って広がっている。 The extending portion 131 extends from between the side surface portion 141 and the outer surface portion 143. The extending portion 131 has a substantially rhombic shape when the back plate 121 is viewed from the plate thickness direction. The extending portion 131 includes a surface portion 151 that is outside the rotor rotation direction and faces the inside in the rotor radial direction and the outside in the rotor rotation direction, and a surface portion 152 that is inside the rotor rotation direction and faces the outside in the rotor radial direction and the inside in the rotor rotation direction. It has a surface portion 153 that is outside in the radial direction of the rotor and faces the outside in the radial direction of the rotor. Each of these surface portions 151, 152, and 153 is a flat surface extending in the plate thickness direction of the back plate 121, and extends along the rotor axial direction.
　面部１５１は、側面部１４１のロータ径方向外側の端縁部側から、パッド１０２の長手方向および基準線方向に対して斜めをなして、ロータ径方向外側かつロータ回転方向外側に延出している。面部１５１と側面部１４１とは鈍角をなしている。面部１５１と側面部１４１とのなす角は、パッド摺動部３２Ｂの係止面部７３Ｂとトルク受面７１Ｂとのなす角と同等の角度となっている。面部１５２は、外面部１４３のロータ回転方向の側面部１４１側の端縁部から、パッド１０２の長手方向および基準線方向に対して斜めをなして、ロータ径方向外側かつロータ回転方向外側に延出している。面部１５２は、面部１５１と略平行に広がっている。面部１５３は、面部１５１の側面部１４１とは反対側にある端縁部と、面部１５２の外面部１４３とは反対側にある端縁部とを繋いでおり、側面部１４１に対して垂直に広がっている。面部１５１と面部１５３とは鋭角をなしており、面部１５２と面部１５３とは鈍角をなしている。 The surface portion 151 extends from the edge portion side of the side surface portion 141 on the outer side in the rotor radial direction at an angle with respect to the longitudinal direction and the reference line direction of the pad 102, and extends outward in the rotor radial direction and outward in the rotor rotation direction. .. The surface portion 151 and the side surface portion 141 form an obtuse angle. The angle formed by the surface portion 151 and the side surface portion 141 is the same as the angle formed by the locking surface portion 73B of the pad sliding portion 32B and the torque receiving surface 71B. The face portion 152 extends from the edge portion of the outer surface portion 143 on the side surface portion 141 side in the rotor rotation direction at an angle with respect to the longitudinal direction and the reference line direction of the pad 102, and extends outward in the rotor radial direction and outward in the rotor rotation direction. It is out. The face portion 152 extends substantially parallel to the face portion 151. The face portion 153 connects the edge portion of the face portion 151 on the side opposite to the side surface portion 141 and the end edge portion of the face portion 152 on the side opposite to the outer surface portion 143, and is perpendicular to the side surface portion 141. It has spread. The face portion 151 and the face portion 153 have an acute angle, and the face portion 152 and the face portion 153 have an obtuse angle.
　延出部１３２は、側面部１４２と外面部１４３との間から延出している。延出部１３２は、裏板１２１を板厚方向から見て略菱形の形状をなしている。延出部１３２は、ロータ回転方向外側にあってロータ径方向内側かつロータ回転方向外側を向く面部１６１と、ロータ回転方向内側にあってロータ径方向外側かつロータ回転方向内側を向く面部１６２と、ロータ径方向外側にあってロータ径方向外側を向く面部１６３とを有している。これら面部１６１，１６２，１６３は、いずれも、裏板１２１の板厚方向に広がる平坦面であり、ロータ軸方向に沿って広がっている。 The extending portion 132 extends from between the side surface portion 142 and the outer surface portion 143. The extending portion 132 has a substantially rhombic shape when the back plate 121 is viewed from the plate thickness direction. The extending portion 132 includes a surface portion 161 that is outside the rotor rotation direction and faces the inside in the rotor radial direction and the outside in the rotor rotation direction, and a surface portion 162 that is inside the rotor rotation direction and faces the outside in the rotor radial direction and the inside in the rotor rotation direction. It has a surface portion 163 that is outside in the radial direction of the rotor and faces the outside in the radial direction of the rotor. Each of these surface portions 161, 162, 163 is a flat surface extending in the plate thickness direction of the back plate 121, and extends along the rotor axial direction.
　面部１６１は、側面部１４２のロータ径方向外側の端縁部側から、パッド１０２の長手方向および基準線方向に対して斜めをなして、ロータ径方向外側かつロータ回転方向外側に延出している。面部１６１と側面部１４２とは鈍角をなしている。面部１６１と側面部１４２とのなす角は、面部１５１と側面部１４１とのなす角と同等の角度となっている。面部１６２は、外面部１４３のロータ回転方向の側面部１４２側にある端縁部から、パッド１０２の長手方向および基準線方向に対し斜めをなして、ロータ径方向外側かつロータ回転方向外側に延出している。面部１６２は、面部１６１と略平行に広がっている。面部１６３は、面部１６１の側面部１４２とは反対側の端縁部と、面部１６２の外面部１４３とは反対側の端縁部との間を繋いでおり、側面部１４２に対して垂直に広がっている。面部１６１と面部１６３とは鋭角をなしている。面部１６２と面部１６３とは鈍角をなしている。面部１６３は、面部１５３と同一平面に配置されている。 The surface portion 161 extends from the edge portion side of the side surface portion 142 on the outer side in the rotor radial direction at an angle with respect to the longitudinal direction and the reference line direction of the pad 102, and extends outward in the rotor radial direction and outward in the rotor rotation direction. .. The surface portion 161 and the side surface portion 142 form an obtuse angle. The angle formed by the surface portion 161 and the side surface portion 142 is the same as the angle formed by the surface portion 151 and the side surface portion 141. The face portion 162 extends from the edge portion of the outer surface portion 143 on the side surface portion 142 side in the rotor rotation direction to the outside in the rotor radial direction and the outside in the rotor rotation direction at an angle with respect to the longitudinal direction and the reference line direction of the pad 102. It is out. The face portion 162 extends substantially parallel to the face portion 161. The face portion 163 connects the end edge portion of the face portion 161 opposite to the side surface portion 142 and the end edge portion of the face portion 162 opposite to the outer surface portion 143, and is perpendicular to the side surface portion 142. It has spread. The face portion 161 and the face portion 163 form an acute angle. The surface portion 162 and the surface portion 163 form an obtuse angle. The face portion 163 is arranged on the same plane as the face portion 153.
　図１に示すように、パッド１０２は、キャリパ本体１５のパッド配置空間６１のインナ側に組み付けられる際に、ライニング材１２２を裏板１２１に対してアウタ側に配置する。そして、図５に示すように、延出部１３１，１３２をロータ径方向外側の端部に配置する姿勢で、延出部１３１がロータ回入側のパッド摺動部３２Ｂに支持され、また、延出部１３２がロータ回出側のパッド摺動部３３Ｂに支持される。 As shown in FIG. 1, when the pad 102 is assembled to the inner side of the pad arrangement space 61 of the caliper main body 15, the lining material 122 is arranged on the outer side with respect to the back plate 121. Then, as shown in FIG. 5, the extension portions 131 are supported by the pad sliding portion 32B on the rotor entry side in a posture in which the extension portions 131 and 132 are arranged at the outer ends in the radial direction of the rotor, and the extension portions 131 are supported by the pad sliding portion 32B on the rotor entry side. The extension portion 132 is supported by the pad sliding portion 33B on the rotor rotation side.
　その際に、インナ側に配置されるパッド１０２は、ロータ回出側に配置される延出部１３２が、面部１６２において、パッドスプリング１０１の延出板部１１５に当接して、延出板部１１５でロータ径方向内側かつロータ回出側に押圧されることになる。また、延出部１３２は、面部１６１において、パッド摺動部３３Ｂの図１に示す係止面部８３Ｂに当接する。また、図５に示すように、このパッド１０２は、ロータ回入側の延出部１３１が、面部１５３においてパッドスプリング１０１の延出板部１１７に当接して、延出板部１１７でロータ径方向内側に押圧されることになる。また、延出部１３１は、面部１５１においてパッド摺動部３２Ｂの係止面部７３Ｂに当接する。 At that time, in the pad 102 arranged on the inner side, the extending portion 132 arranged on the rotor feeding side abuts on the extending plate portion 115 of the pad spring 101 on the surface portion 162, and the extending plate portion At 115, the rotor is pressed inward in the radial direction and toward the rotor rotation side. Further, the extending portion 132 abuts on the surface portion 161 with the locking surface portion 83B shown in FIG. 1 of the pad sliding portion 33B. Further, as shown in FIG. 5, in this pad 102, the extension portion 131 on the rotor entry side abuts on the extension plate portion 117 of the pad spring 101 on the surface portion 153, and the rotor diameter is reached at the extension plate portion 117. It will be pressed inward in the direction. Further, the extending portion 131 comes into contact with the locking surface portion 73B of the pad sliding portion 32B on the surface portion 151.
　インナ側に配置されるパッド１０２は、パッドスプリング１０１の付勢力のみを受ける状態では、パッドスプリング１０１の付勢力で、主板部１３０の側面部１４２を、これに対向するインナ側かつロータ回出側のトルク受面８１Ｂに面接触で直接当接させる。また、延出部１３２の面部１６１を、これに対向するインナ側かつロータ回出側にある係止面部８３Ｂ（図１参照）に面接触で直接当接させる。さらに、図５に示すように、延出部１３１の面部１５１を、これに対向するインナ側かつロータ回入側にある係止面部７３Ｂに、面接触で直接当接させる。 When the pad 102 arranged on the inner side receives only the urging force of the pad spring 101, the urging force of the pad spring 101 causes the side surface portion 142 of the main plate portion 130 to face the inner side and the rotor rotation side facing the inner side portion 142. The torque receiving surface 81B of the above is directly brought into contact with the surface contact. Further, the surface portion 161 of the extension portion 132 is brought into direct contact with the locking surface portion 83B (see FIG. 1) on the inner side and the rotor rotation side facing the extension portion 132 by surface contact. Further, as shown in FIG. 5, the surface portion 151 of the extension portion 131 is brought into direct contact with the locking surface portion 73B on the inner side and the rotor entry side facing the extension portion 131 by surface contact.
　この状態で、キャリパ本体１５は、インナ側のパッド摺動部３２Ｂがインナ側のパッド１０２の延出部１３１の延出方向に沿って広がる係止面部７３Ｂを有することになる。インナ側のパッド１０２は、延出部１３１が、インナ側のパッド摺動部３２Ｂに係止されることになる。また、この状態で、キャリパ本体１５は、インナ側のパッド摺動部３３Ｂがインナ側のパッド１０２の延出部１３２の延出方向に沿って広がる図１に示す係止面部８３Ｂを有することになる。インナ側のパッド１０２は、延出部１３２が、インナ側のパッド摺動部３３Ｂに係止されることになる。また、この状態で、このインナ側のパッド１０２は、図５に示すように、主板部１３０の側面部１４２をトルク受面８１Ｂに当接させるとともに、主板部１３０の側面部１４１をトルク受面７１Ｂに対し若干の隙間をもって対向させることになる。さらに、この状態で、インナ側のパッド１０２は、延出部１３１，１３２がディスクロータ１１の最外周よりもロータ径方向外側に配置されることになる。 In this state, the caliper main body 15 has a locking surface portion 73B in which the pad sliding portion 32B on the inner side extends along the extending direction of the extending portion 131 of the pad 102 on the inner side. In the pad 102 on the inner side, the extending portion 131 is locked to the pad sliding portion 32B on the inner side. Further, in this state, the caliper main body 15 has the locking surface portion 83B shown in FIG. 1 in which the pad sliding portion 33B on the inner side extends along the extending direction of the extending portion 132 of the pad 102 on the inner side. Become. In the pad 102 on the inner side, the extending portion 132 is locked to the pad sliding portion 33B on the inner side. Further, in this state, as shown in FIG. 5, the pad 102 on the inner side brings the side surface portion 142 of the main plate portion 130 into contact with the torque receiving surface 81B, and the side surface portion 141 of the main plate portion 130 is brought into contact with the torque receiving surface. It will face 71B with a slight gap. Further, in this state, in the pad 102 on the inner side, the extending portions 131 and 132 are arranged outside the outermost circumference of the disc rotor 11 in the rotor radial direction.
　図１に示すように、パッド１０２は、キャリパ本体１５のパッド配置空間６１のアウタ側に組み付けられる際に、ライニング材１２２を、裏板１２１に対してインナ側に配置し、延出部１３１，１３２をロータ径方向外側に配置する。この姿勢で、延出部１３１がロータ回出側のパッド摺動部３２Ａに支持され、延出部１３２がロータ回入側のパッド摺動部３３Ａに支持される。 As shown in FIG. 1, when the pad 102 is assembled to the outer side of the pad arrangement space 61 of the caliper main body 15, the lining material 122 is arranged on the inner side with respect to the back plate 121, and the extension portion 131, The 132 is arranged on the outer side in the radial direction of the rotor. In this posture, the extension portion 131 is supported by the pad sliding portion 32A on the rotor rotation side, and the extension portion 132 is supported by the pad sliding portion 33A on the rotor rotation side.
　その際に、このアウタ側に配置されるパッド１０２は、ロータ回出側に配置される延出部１３１が、面部１５２においてパッドスプリング１０１の延出板部１１４に当接し、延出板部１１４でロータ径方向内側かつロータ回出側に押圧されることになる。その結果、延出部１３１が、面部１５１（図５参照）においてパッド摺動部３２Ａの係止面部７３Ａに当接する。
　また、パッド１０２は、ロータ回入側の延出部１３２が、面部１６３においてパッドスプリング１０１の延出板部１１６に当接し、延出板部１１６でロータ径方向内側に押圧されることになる。その結果、延出部１３２が、面部１６１（図５参照）においてパッド摺動部３３Ａの係止面部８３Ａに当接する。 At that time, in the pad 102 arranged on the outer side, the extending portion 131 arranged on the rotor feeding side abuts on the extending plate portion 114 of the pad spring 101 on the surface portion 152, and the extending plate portion 114 Will be pressed inward in the radial direction of the rotor and toward the rotor rotation side. As a result, the extending portion 131 comes into contact with the locking surface portion 73A of the pad sliding portion 32A at the surface portion 151 (see FIG. 5).
Further, in the pad 102, the extension portion 132 on the rotor entry side comes into contact with the extension plate portion 116 of the pad spring 101 at the surface portion 163, and is pressed inward in the rotor radial direction by the extension plate portion 116. .. As a result, the extending portion 132 comes into contact with the locking surface portion 83A of the pad sliding portion 33A at the surface portion 161 (see FIG. 5).
　アウタ側に配置されるパッド１０２は、パッドスプリング１０１の付勢力のみを受ける状態では、パッドスプリング１０１の付勢力で、主板部１３０の側面部１４１（図５参照）を、これに対向するアウタ側かつロータ回出側のトルク受面７１Ａに面接触で直接当接させる。その結果、延出部１３１の面部１５１（図５参照）を、これに対向するアウタ側かつロータ回出側の係止面部７３Ａに面接触で直接当接させると共に、延出部１３２の面部１６１（図５参照）を、これに対向するアウタ側かつロータ回入側にある係止面部８３Ａに面接触で直接当接させる。 When the pad 102 arranged on the outer side receives only the urging force of the pad spring 101, the urging force of the pad spring 101 causes the side surface portion 141 (see FIG. 5) of the main plate portion 130 to face the outer side. In addition, the torque receiving surface 71A on the rotor rotation side is brought into direct contact with the surface contact. As a result, the surface portion 151 (see FIG. 5) of the extension portion 131 is brought into direct contact with the locking surface portion 73A on the outer side and the rotor rotation side facing the same, and the surface portion 161 of the extension portion 132 is brought into direct contact with the surface portion 161. (See FIG. 5) is brought into direct contact with the locking surface portion 83A on the outer side and the rotor entry side facing the same (see FIG. 5) by surface contact.
　この状態で、キャリパ本体１５は、アウタ側のパッド摺動部３２Ａがアウタ側のパッド１０２の延出部１３１の延出方向に沿って広がる係止面部７３Ａを有することになる。そして、このアウタ側のパッド１０２は、延出部１３１が、アウタ側のパッド摺動部３２Ａに係止されることになる。また、この状態で、キャリパ本体１５は、アウタ側のパッド摺動部３３Ａが、アウタ側のパッド１０２の延出部１３２の延出方向に沿って広がる係止面部８３Ａを有することになる。そして、このアウタ側のパッド１０２は、延出部１３２が、アウタ側のパッド摺動部３３Ａに係止されることになる。この状態で、アウタ側のパッド１０２は、主板部１３０の側面部１４１（図５参照）をトルク受面７１Ａに当接させるとともに、主板部１３０の側面部１４２（図５参照）をトルク受面８１Ａに対して若干の隙間をもって対向させることになる。さらに、この状態で、アウタ側のパッド１０２は、延出部１３１，１３２がディスクロータ１１の最外周よりもロータ径方向外側に配置されることになる。 In this state, the caliper main body 15 has a locking surface portion 73A in which the pad sliding portion 32A on the outer side extends along the extending direction of the extending portion 131 of the pad 102 on the outer side. Then, in the pad 102 on the outer side, the extending portion 131 is locked to the pad sliding portion 32A on the outer side. Further, in this state, the caliper main body 15 has the pad sliding portion 33A on the outer side having the locking surface portion 83A in which the pad sliding portion 33A on the outer side extends along the extending direction of the extending portion 132 of the pad 102 on the outer side. Then, in the pad 102 on the outer side, the extending portion 132 is locked to the pad sliding portion 33A on the outer side. In this state, the pad 102 on the outer side brings the side surface portion 141 (see FIG. 5) of the main plate portion 130 into contact with the torque receiving surface 71A, and the side surface portion 142 (see FIG. 5) of the main plate portion 130 is brought into contact with the torque receiving surface. It will face 81A with a slight gap. Further, in this state, in the pad 102 on the outer side, the extending portions 131 and 132 are arranged outside the outermost circumference of the disc rotor 11 in the rotor radial direction.
　以上のようにして、一対のパッド１０２が、一つのキャリパ本体１５に摺動可能に係止される。 As described above, the pair of pads 102 are slidably locked to one caliper main body 15.
　図５に示すインナ側のパッド１０２は、キャリパ本体１５のインナ側のパッド摺動部３２Ｂ，３３Ｂで支持されてロータ軸方向に移動することになる。その際、パッド摺動部３２Ｂ，３３Ｂは、ロータ回転方向両側にＶ字配置された係止面部７３Ｂおよび図１に示す係止面部８３Ｂで、インナ側のパッド１０２の延出部１３１，１３２を係止することになる。よって、キャリパ本体１５は、インナ側のパッド摺動部３２Ｂ，３３Ｂが、インナ側のパッド１０２を、ロータ軸方向に摺動可能に支持する。 The inner pad 102 shown in FIG. 5 is supported by the inner pad sliding portions 32B and 33B of the caliper main body 15 and moves in the rotor axial direction. At that time, the pad sliding portions 32B and 33B are the locking surface portions 73B arranged in a V shape on both sides in the rotor rotation direction and the locking surface portions 83B shown in FIG. It will be locked. Therefore, in the caliper main body 15, the pad sliding portions 32B and 33B on the inner side slidably support the pad 102 on the inner side in the rotor axial direction.
　図１に示すアウタ側のパッド１０２は、キャリパ本体１５のアウタ側のパッド摺動部３２Ａ，３３Ａに支持されてロータ軸方向に移動することになる。その際、パッド摺動部３２Ａ，３３Ａは、ロータ回転方向両側にＶ字配置された係止面部７３Ａ，８３Ａでアウタ側のパッド１０２の延出部１３１，１３２を係止することになる。よって、キャリパ本体１５は、アウタ側のパッド摺動部３２Ａ，３３Ａが、アウタ側のパッド１０２を、ロータ軸方向に摺動可能に支持する。 The outer pad 102 shown in FIG. 1 is supported by the pad sliding portions 32A and 33A on the outer side of the caliper main body 15 and moves in the rotor axial direction. At that time, the pad sliding portions 32A and 33A lock the extending portions 131 and 132 of the pad 102 on the outer side with the locking surface portions 73A and 83A arranged in a V shape on both sides in the rotor rotation direction. Therefore, in the caliper main body 15, the pad sliding portions 32A and 33A on the outer side slidably support the pad 102 on the outer side in the rotor axial direction.
　以上説明のように、キャリパ１２は、一対のパッド１０２を支持するパッドピンを持たずに一対のパッド１０２をキャリパ本体１５で直接支持する、いわゆる、パッドピンレス構造となっている。 As described above, the caliper 12 has a so-called pad pinless structure in which the pair of pads 102 are directly supported by the caliper body 15 without having the pad pins that support the pair of pads 102.
　以上説明のディスクブレーキ１０においては、図１に示す給排口４１を介して、図２，図３に示すアウタ側シリンダ部２１およびインナ側シリンダ部２２のシリンダボア３８，３９，５８，５９内にブレーキ液が導入される。すると、図４に示す一対のピストン１６および一対のピストン１７がブレーキ液の液圧によってディスクロータ１１の方向に移動する。すると、アウタ側シリンダ部２１に設けられた二つのピストン１６，１７が、アウタ側シリンダ部２１とディスクロータ１１との間に設けられたアウタ側のパッド１０２を押圧して、そのライニング材１２２をディスクロータ１１に押し付ける。また、インナ側シリンダ部２２に設けられた二つのピストン１６，１７が、インナ側シリンダ部２２とディスクロータ１１との間に設けられたインナ側のパッド１０２を押圧して、そのライニング材１２２をディスクロータ１１に押し付ける。これにより、一対のパッド１０２がディスクロータ１１を押圧して、車両に制動力を発生させることになる。 In the disc brake 10 described above, in the cylinder bores 38, 39, 58, 59 of the outer side cylinder portion 21 and the inner side cylinder portion 22 shown in FIGS. Brake fluid is introduced. Then, the pair of pistons 16 and the pair of pistons 17 shown in FIG. 4 move in the direction of the disc rotor 11 due to the hydraulic pressure of the brake fluid. Then, the two pistons 16 and 17 provided on the outer cylinder portion 21 press the outer pad 102 provided between the outer cylinder portion 21 and the disc rotor 11, and the lining material 122 is pressed. Press against the disc rotor 11. Further, the two pistons 16 and 17 provided on the inner cylinder portion 22 press the inner pad 102 provided between the inner cylinder portion 22 and the disc rotor 11, and the lining material 122 thereof is pressed. Press against the disc rotor 11. As a result, the pair of pads 102 press the disc rotor 11 to generate a braking force on the vehicle.
　このとき、一対のパッド１０２は、ロータ径方向内方およびロータ回転方向への移動がパッド摺動部３２Ａ，３３Ａ，３２Ｂ，３３Ｂで規制されるようにキャリパ本体１５に係止されて、ロータ軸方向に移動することになる。 At this time, the pair of pads 102 are locked to the caliper main body 15 so that the movement in the rotor radial direction and the rotor rotation direction is regulated by the pad sliding portions 32A, 33A, 32B, 33B, and the rotor shaft It will move in the direction.
　ロータ軸方向の移動時に、図１に示すように、インナ側のパッド１０２は、延出部１３１，１３２においてインナ側のパッド摺動部３２Ｂ，３３Ｂに支持されて移動することになる。その際、延出部１３２が面部１６１においてパッド摺動部３３Ｂの係止面部８３Ｂを摺動し、延出部１３１が面部１５１においてパッド摺動部３２Ｂの係止面部７３Ｂを摺動する。ロータ軸方向の移動時に、アウタ側のパッド１０２は、延出部１３１，１３２においてアウタ側のパッド摺動部３２Ａ，３３Ａに係止されて移動することになる。その際、延出部１３１が面部１５１においてパッド摺動部３２Ａの係止面部７３Ａを摺動し、延出部１３２が面部１６１においてパッド摺動部３３Ａの係止面部８３Ａを摺動する。このように、パッド摺動部３２Ａ，３３Ａ，３２Ｂ，３３Ｂを含むキャリパ本体１５は、パッド１０２を、ロータ軸方向に移動可能に係止する。 When moving in the rotor axial direction, as shown in FIG. 1, the inner pad 102 moves while being supported by the inner pad sliding portions 32B and 33B at the extending portions 131 and 132. At that time, the extending portion 132 slides on the locking surface portion 83B of the pad sliding portion 33B on the surface portion 161 and the extending portion 131 slides on the locking surface portion 73B of the pad sliding portion 32B on the surface portion 151. When moving in the rotor axial direction, the pad 102 on the outer side is locked to the pad sliding portions 32A and 33A on the outer side at the extending portions 131 and 132 and moves. At that time, the extending portion 131 slides on the locking surface portion 73A of the pad sliding portion 32A on the surface portion 151, and the extending portion 132 slides on the locking surface portion 83A of the pad sliding portion 33A on the surface portion 161. In this way, the caliper main body 15 including the pad sliding portions 32A, 33A, 32B, 33B locks the pad 102 so as to be movable in the rotor axial direction.
　車両の前進制動時に、一対のパッド１０２は、いずれもライニング材１２２においてディスクロータ１１に接触してロータ回出側に移動する。すると、図４に示すように、インナ側のパッド１０２が裏板１２１の側面部１４２において、ロータ回出側であるパッド摺動部３３Ｂのトルク受面８１Ｂに当接する。そして、アウタ側のパッド１０２が裏板１２１の側面部１４１において、ロータ回出側であるパッド摺動部３２Ａのトルク受面７１Ａに当接する。これにより、キャリパ本体１５が主としてパッド摺動部３２Ａ，３３Ｂで制動トルクを受ける。 At the time of forward braking of the vehicle, both of the pair of pads 102 come into contact with the disc rotor 11 in the lining material 122 and move to the rotor rotation side. Then, as shown in FIG. 4, the pad 102 on the inner side comes into contact with the torque receiving surface 81B of the pad sliding portion 33B on the rotor rotation side on the side surface portion 142 of the back plate 121. Then, the pad 102 on the outer side comes into contact with the torque receiving surface 71A of the pad sliding portion 32A on the rotor rotation side on the side surface portion 141 of the back plate 121. As a result, the caliper main body 15 receives braking torque mainly at the pad sliding portions 32A and 33B.
　車両の後退制動時には、一対のパッド１０２が、いずれもライニング材１２２においてディスクロータ１１に接触して後退時ロータ回出側に移動する。すると、インナ側のパッド１０２が裏板１２１の側面部１４１において、パッド摺動部３２Ｂのトルク受面７１Ｂに当接する。また、アウタ側のパッド１０２が裏板１２１の側面部１４２において、パッド摺動部３３Ａのトルク受面８１Ａに当接する。これにより、キャリパ本体１５が主としてパッド摺動部３２Ｂ，３３Ａで制動トルクを受ける。 At the time of reverse braking of the vehicle, the pair of pads 102 all come into contact with the disc rotor 11 at the lining material 122 and move to the rotor rotation side at the time of reverse. Then, the pad 102 on the inner side comes into contact with the torque receiving surface 71B of the pad sliding portion 32B on the side surface portion 141 of the back plate 121. Further, the pad 102 on the outer side abuts on the torque receiving surface 81A of the pad sliding portion 33A on the side surface portion 142 of the back plate 121. As a result, the caliper main body 15 receives braking torque mainly at the pad sliding portions 32B and 33A.
　図１に示すように、キャリパ本体１５は、パッド配置空間６１のロータ径方向の外側に、パッド配置空間６１のロータ回転方向の中間部をロータ軸方向に跨ぐ中間連結部２５が設けられている。このため、キャリパ本体１５に、一対のパッド１０２を組み付ける際には、ロータ径方向の外側からは干渉して組み付けができず、ロータ径方向の内側から組み付けるようになっている。そして、パッド配置空間６１およびパッド組付用空間５２は、二枚のパッド１０２を纏めてキャリパ本体１５に組み付けることができない大きさおよび形状となっている。このため、一対のパッド１０２を、一枚ずつキャリパ本体１５にロータ径方向の内側から組み付けるようになっている。 As shown in FIG. 1, the caliper main body 15 is provided with an intermediate connecting portion 25 straddling the intermediate portion of the pad arrangement space 61 in the rotor rotation direction in the rotor axial direction on the outside of the pad arrangement space 61 in the rotor radial direction. .. Therefore, when assembling the pair of pads 102 to the caliper main body 15, they interfere with each other from the outside in the rotor radial direction and cannot be assembled, and are assembled from the inside in the rotor radial direction. The pad arrangement space 61 and the pad assembly space 52 have a size and shape that cannot be assembled to the caliper main body 15 together with the two pads 102. Therefore, the pair of pads 102 are assembled one by one to the caliper main body 15 from the inside in the rotor radial direction.
　例えば、新品状態のアウタ側のパッド１０２を先にアウタ側のパッド摺動部３２Ａ，３３Ａに組み付けてから、新品状態のインナ側のパッド１０２をインナ側のパッド摺動部３２Ｂ，３３Ｂに組み付けることになる。その際に、先に組み付けられるアウタ側のパッド１０２は、延出部１３２をパッド組付用空間５２に通すことで、延出部１３１，１３２がパッド摺動部３２Ａ，３３Ａをロータ径方向外方に越えることができて、パッド摺動部３２Ａ，３３Ａに組み付けられることになる。 For example, the pad 102 on the outer side in a new state is first assembled to the pad sliding portions 32A and 33A on the outer side, and then the pad 102 on the inner side in a new state is assembled to the pad sliding portions 32B and 33B on the inner side. become. At that time, the pad 102 on the outer side to be assembled first passes the extending portion 132 through the pad assembling space 52, so that the extending portions 131 and 132 move the pad sliding portions 32A and 33A out of the rotor radial direction. It can be crossed over and can be assembled to the pad sliding portions 32A and 33A.
　ところで、本実施形態のキャリパ本体１５は、ロータ軸方向に小型化されている。そのため、パッド配置空間６１およびパッド組付用空間５２は、先に取り付けた新品状態のアウタ側のパッド１０２を最もアウタ側に寄せた状態、言い換えれば、図８に示すように、このアウタ側のパッド１０２の裏板１２１の裏面１２６を中間壁面部８６Ａに面接触で当接させた状態としても、キャリパ本体１５に組み付けることができない。すなわち、新品状態のインナ側のパッド１０２を、その先端面１２７をアウタ側のパッド１０２の先端面１２７に面接触させてアウタ側のパッド１０２と平行に配置した状態では、キャリパ本体１５に組み付けることができない。なお、図８は、キャリパ本体１５のパッド配置空間６１の近傍を径方向基準線の方向に沿ってロータ径方向外側から見た図である。 By the way, the caliper main body 15 of this embodiment is miniaturized in the rotor axial direction. Therefore, the pad arrangement space 61 and the pad assembly space 52 are in a state where the pad 102 on the outer side in the new state attached earlier is closest to the outer side, in other words, as shown in FIG. 8, on the outer side. Even if the back surface 126 of the back plate 121 of the pad 102 is brought into contact with the intermediate wall surface portion 86A by surface contact, it cannot be assembled to the caliper main body 15. That is, the pad 102 on the inner side in a new state is assembled to the caliper main body 15 in a state where the tip surface 127 is brought into surface contact with the tip surface 127 of the pad 102 on the outer side and arranged in parallel with the pad 102 on the outer side. I can't. Note that FIG. 8 is a view of the vicinity of the pad arrangement space 61 of the caliper main body 15 as viewed from the outside in the radial direction of the rotor along the direction of the radial reference line.
　すなわち、キャリパ本体１５は、新品状態のアウタ側のパッド１０２を先にアウタ側のパッド摺動部３２Ａ，３３Ａに組み付け、最もアウタ側の端位置に位置させた状態で、新品状態のインナ側のパッド１０２を、その先端面１２７をアウタ側のパッド１０２の先端面１２７に面接触させながら、ロータ径方向に移動させようとしても、パッド組付用空間５２およびパッド配置空間６１を形成するパッド摺動部３２Ａ，３２Ｂ，３３Ａ，３３Ｂおよび支持連結部５１が、これを阻害する。具体的には、インナ側のパッド１０２の延出部１３２を、パッド摺動部３３Ｂおよび支持連結部５１よりもロータ径方向外側に配置した後、延出部１３１をパッド組付用空間５２に通してパッド摺動部３２Ｂをロータ径方向に越えさせようとしても、図８に示すように、延出部１３１がパッド摺動部３２Ｂにロータ回転方向およびロータ軸方向において位置が重なり合って干渉してしまう。そのため、延出部１３１は、パッド摺動部３２Ｂをロータ径方向に越えることができない。 That is, in the caliper main body 15, the pad 102 on the outer side in the new state is first assembled to the pad sliding portions 32A and 33A on the outer side, and the caliper main body 15 is positioned at the end position on the outermost side, and is on the inner side in the new state. Even if the pad 102 is moved in the rotor radial direction while the tip surface 127 of the pad 102 is in surface contact with the tip surface 127 of the pad 102 on the outer side, the pad slide forming the pad assembly space 52 and the pad arrangement space 61. The moving parts 32A, 32B, 33A, 33B and the support connecting part 51 hinder this. Specifically, after the extending portion 132 of the pad 102 on the inner side is arranged outside the pad sliding portion 33B and the support connecting portion 51 in the rotor radial direction, the extending portion 131 is placed in the pad assembly space 52. Even if the pad sliding portion 32B is passed through in the rotor radial direction, as shown in FIG. 8, the extending portion 131 interferes with the pad sliding portion 32B due to overlapping positions in the rotor rotation direction and the rotor axial direction. Will end up. Therefore, the extending portion 131 cannot cross the pad sliding portion 32B in the rotor radial direction.
　また、上記とは逆に、新品状態のインナ側のパッド１０２を先にインナ側のパッド摺動部３２Ｂ，３３Ｂに組み付けてから、新品状態のアウタ側のパッド１０２をアウタ側のパッド摺動部３２Ａ，３３Ａに組み付ける場合も同様である。つまり、パッド配置空間６１およびパッド組付用空間５２は、新品状態のインナ側のパッド１０２をインナ側のパッド摺動部３２Ｂ，３３Ｂに組み付けた状態で、このインナ側のパッド１０２を最もインナ側に寄せた状態、言い換えれば、このインナ側のパッド１０２の裏板１２１の裏面１２６を中間壁面部８６Ｂに面接触で当接させた状態としても、キャリパ本体１５に組み付けることができない。すなわち、新品状態のアウタ側のパッド１０２を、その先端面１２７をインナ側のパッド１０２の先端面１２７に面接触させてインナ側のパッド１０２と平行に配置した状態では、キャリパ本体１５に組み付けることができない。 Further, contrary to the above, the pad 102 on the inner side in the new state is first assembled to the pad sliding portions 32B and 33B on the inner side, and then the pad 102 on the outer side in the new state is attached to the pad sliding portion on the outer side. The same applies when assembling to 32A and 33A. That is, in the pad arrangement space 61 and the pad assembly space 52, the pad 102 on the inner side is assembled to the pad sliding portions 32B and 33B on the inner side in a new state, and the pad 102 on the inner side is the most inner side. In other words, even if the back surface 126 of the back plate 121 of the pad 102 on the inner side is brought into contact with the intermediate wall surface portion 86B by surface contact, it cannot be assembled to the caliper main body 15. That is, the pad 102 on the outer side in a new state is assembled to the caliper main body 15 in a state where the tip surface 127 is brought into surface contact with the tip surface 127 of the pad 102 on the inner side and arranged in parallel with the pad 102 on the inner side. I can't.
　すなわち、キャリパ本体１５は、新品状態のインナ側のパッド１０２を先にインナ側のパッド摺動部３２Ｂ，３３Ｂに組み付け、最もインナ側の端位置に位置させた状態で、新品状態のアウタ側のパッド１０２を、その先端面１２７をインナ側のパッド１０２の先端面１２７に面接触させながら、ロータ径方向に移動させようとしても、パッド組付用空間５２およびパッド配置空間６１を形成するパッド摺動部３２Ａ，３２Ｂ，３３Ａ，３３Ｂおよび支持連結部５１が、これを阻害する。具体的には、アウタ側のパッド１０２の延出部１３１を、パッド摺動部３２Ａおよび支持連結部５１よりもロータ径方向外側に配置した後、延出部１３２をパッド組付用空間５２に通してパッド摺動部３３Ａをロータ径方向に越えさせようとしても、延出部１３２がパッド摺動部３３Ａにロータ回転方向およびロータ軸方向において位置が重なり合って干渉してしまう。そのため、パッド摺動部３３Ａをロータ径方向に越えることができない。 That is, in the caliper main body 15, the pad 102 on the inner side in the new state is first assembled to the pad sliding portions 32B and 33B on the inner side, and the caliper body 15 is positioned at the end position on the innermost side, and is on the outer side in the new state. Even if the pad 102 is moved in the rotor radial direction while the tip surface 127 is in surface contact with the tip surface 127 of the pad 102 on the inner side, the pad slide forming the pad assembly space 52 and the pad arrangement space 61. The moving parts 32A, 32B, 33A, 33B and the support connecting part 51 hinder this. Specifically, after the extending portion 131 of the pad 102 on the outer side is arranged outside the pad sliding portion 32A and the support connecting portion 51 in the rotor radial direction, the extending portion 132 is placed in the pad assembly space 52. Even if the pad sliding portion 33A is passed through in the rotor radial direction, the extending portion 132 overlaps the pad sliding portion 33A in the rotor rotation direction and the rotor axial direction and interferes with the pad sliding portion 33A. Therefore, the pad sliding portion 33A cannot be crossed in the rotor radial direction.
　この関係を、さらに説明する。アウタ側のパッド１０２の新品状態での裏板１２１の裏面１２６と、ライニング材１２２の先端面１２７との距離を、新品時厚さＰｔ１とする。新品時厚さＰｔ１は、パッド１０２の新品状態での最大厚さである。また、インナ側のパッド１０２の新品状態における裏板１２１の裏面１２６と、ライニング材１２２の先端面１２７との距離を、新品時厚さＰｔ２とする。新品時厚さＰｔ２も、パッド１０２の新品状態での最大厚さである。一対のパッド１０２は、共通部品であるため、Ｐｔ１＝Ｐｔ２であり、Ｐｔ１＝Ｐｔ２＝Ｐｔとする。 This relationship will be explained further. The distance between the back surface 126 of the back plate 121 in a new state of the pad 102 on the outer side and the tip surface 127 of the lining material 122 is defined as the new thickness Pt1. The new thickness Pt1 is the maximum thickness of the pad 102 in a new state. Further, the distance between the back surface 126 of the back plate 121 in the new state of the pad 102 on the inner side and the tip surface 127 of the lining material 122 is defined as the new thickness Pt2. The new thickness Pt2 is also the maximum thickness of the pad 102 in a new state. Since the pair of pads 102 are common parts, Pt1 = Pt2 and Pt1 = Pt2 = Pt.
　また、ロータ回入側かつインナ側にあるパッド摺動部３２Ｂのロータ対向面７２Ｂと、中間壁面部８６Ｂとの距離をロータ軸方向幅Ｃｉとする。ロータ回入側かつアウタ側にあるパッド摺動部３３Ａのロータ対向面８２Ａと中間壁面部８６Ａとの距離をＣｏとする。また、ロータ対向面７２Ｂとロータ対向面８２Ａとの距離をＣｓｘとする。パッド摺動部３２Ｂとパッド摺動部３３Ａとは鏡面対称状であるため、Ｃｏ＝Ｃｉである。 Further, the distance between the rotor facing surface 72B of the pad sliding portion 32B on the rotor entry side and the inner side and the intermediate wall surface portion 86B is defined as the rotor axial width Ci. Let Co be the distance between the rotor facing surface 82A and the intermediate wall surface portion 86A of the pad sliding portion 33A on the rotor entry side and the outer side. Further, the distance between the rotor facing surface 72B and the rotor facing surface 82A is defined as Csx. Since the pad sliding portion 32B and the pad sliding portion 33A are mirror-symmetrical, Co = Ci.
　すると、図８に示すように、ロータ軸方向において、アウタ側のパッド摺動部３３Ａとパッド組付用空間５２とを合わせた距離Ｃｏ＋Ｃｓｘが、パッド１０２の二つ分の厚み２×Ｐｔよりも小さくなっている。すなわち、２×Ｐｔ＞Ｃｏ＋Ｃｓｘの関係になっている。 Then, as shown in FIG. 8, in the rotor axial direction, the distance Co + Csx of the pad sliding portion 33A on the outer side and the pad assembling space 52 is larger than the thickness 2 × Pt of two pads 102. It's getting smaller. That is, the relationship is 2 × Pt> Co + Csx.
　同様に、ロータ軸方向において、インナ側のパッド摺動部３２Ｂとパッド組付用空間５２とを合わせた距離Ｃｉ＋Ｃｓｘが、パッド１０２の二つ分の厚み２×Ｐｔよりも小さくなっている。すなわち、２×Ｐｔ＞Ｃｉ＋Ｃｓｘの関係となっている。 Similarly, in the rotor axial direction, the total distance Ci + Csx of the pad sliding portion 32B on the inner side and the pad assembly space 52 is smaller than the thickness 2 × Pt of two pads 102. That is, the relationship is 2 × Pt> Ci + Csx.
　言い換えれば、ロータ軸方向において、アウタ側のパッド摺動部３３Ａおよびインナ側のパッド摺動部３２Ｂのうちのどちらか一方とパッド組付用空間５２とを合わせた距離が、パッド１０２の二つ分の厚みよりも短い寸法関係となっている。 In other words, in the rotor axial direction, the total distance between one of the pad sliding portion 33A on the outer side and the pad sliding portion 32B on the inner side and the pad assembling space 52 is two of the pads 102. The dimensional relationship is shorter than the thickness of the minute.
　このため、本実施形態においては、例えば、図９に示すように、新品状態のアウタ側のパッド１０２を先にアウタ側のパッド摺動部３２Ａ，３３Ａに組み付ける。その後、新品状態のインナ側のパッド１０２をインナ側のパッド摺動部３２Ｂ，３３Ｂに組み付ける際に、このアウタ側のパッド１０２を最もアウタ側に寄せた状態、言い換えれば、このアウタ側のパッド１０２の裏板１２１の裏面１２６を中間壁面部８６Ａに面接触で当接させた状態とする。その上で、新品状態のインナ側のパッド１０２を、アウタ側のパッド１０２に対して斜めにすれば、その延出部１３１を、パッド組付用空間５２を通過させることができる。このように、本実施形態においては、新品状態のインナ側のパッド１０２をキャリパ本体１５に組み付けられる形状に、パッド配置空間６１およびパッド組付用空間５２が形成されている。なお、図９も、キャリパ本体１５のパッド配置空間６１の近傍を、径方向基準線の方向に沿ってロータ径方向外側から見た図である。 Therefore, in the present embodiment, for example, as shown in FIG. 9, the pad 102 on the outer side in a new state is first assembled to the pad sliding portions 32A and 33A on the outer side. After that, when assembling the pad 102 on the inner side in a new state to the pad sliding portions 32B and 33B on the inner side, the pad 102 on the outer side is brought closer to the outer side, in other words, the pad 102 on the outer side. The back surface 126 of the back plate 121 is brought into contact with the intermediate wall surface portion 86A by surface contact. Then, if the pad 102 on the inner side in a new state is slanted with respect to the pad 102 on the outer side, the extending portion 131 can be passed through the pad assembling space 52. As described above, in the present embodiment, the pad arrangement space 61 and the pad assembly space 52 are formed in a shape in which the pad 102 on the inner side in a new state can be assembled to the caliper main body 15. Note that FIG. 9 is also a view of the vicinity of the pad arrangement space 61 of the caliper main body 15 as viewed from the outside in the radial direction of the rotor along the direction of the radial reference line.
　すなわち、パッド組付用空間５２およびパッド配置空間６１を形成するパッド摺動部３２Ａ，３２Ｂ，３３Ａ，３３Ｂおよび支持連結部５１は、先にアウタ側のパッド摺動部３２Ａ，３３Ａに組み付けられた新品状態のアウタ側のパッド１０２を、最もアウタ側の端位置に位置させた状態とすれば、新品状態のインナ側のパッド１０２を、ロータ径方向内側から外側に移動させる際に、これを阻害しないで通過させることが可能である。 That is, the pad sliding portions 32A, 32B, 33A, 33B and the support connecting portion 51 forming the pad assembling space 52 and the pad arrangement space 61 were first assembled to the pad sliding portions 32A, 33A on the outer side. If the pad 102 on the outer side in the new state is positioned at the end position on the outermost side, this will be hindered when the pad 102 on the inner side in the new state is moved from the inside to the outside in the radial direction of the rotor. It is possible to pass without.
　また、上記とは逆に、新品状態のインナ側のパッド１０２を先にインナ側のパッド摺動部３２Ｂ，３３Ｂに組み付けてから、新品状態のアウタ側のパッド１０２をアウタ側のパッド摺動部３２Ａ，３３Ａに組み付ける際も、このインナ側のパッド１０２を最もインナ側に寄せた状態、言い換えれば、このインナ側のパッド１０２の裏板１２１の裏面１２６を中間壁面部８６Ｂに面接触で当接させた状態とする。これにより、新品状態のアウタ側のパッド１０２を、インナ側のパッド１０２に対して斜めにすれば、その延出部１３２を、パッド組付用空間５２を通過させることができる。このように、新品状態のアウタ側のパッド１０２をキャリパ本体１５に組み付けることができる形状に、パッド配置空間６１およびパッド組付用空間５２が形成されている。 Further, contrary to the above, the pad 102 on the inner side in the new state is first assembled to the pad sliding portions 32B and 33B on the inner side, and then the pad 102 on the outer side in the new state is attached to the pad sliding portion on the outer side. Even when assembling to 32A and 33A, the pad 102 on the inner side is brought closer to the inner side, in other words, the back surface 126 of the back plate 121 of the pad 102 on the inner side is brought into contact with the intermediate wall surface portion 86B by surface contact. Let it be in the state of being made. As a result, if the pad 102 on the outer side in a new state is slanted with respect to the pad 102 on the inner side, the extending portion 132 can pass through the pad assembling space 52. In this way, the pad arrangement space 61 and the pad assembly space 52 are formed in a shape that allows the pad 102 on the outer side in a new state to be assembled to the caliper main body 15.
　すなわち、パッド組付用空間５２およびパッド配置空間６１を形成するパッド摺動部３２Ａ，３２Ｂ，３３Ａ，３３Ｂおよび支持連結部５１は、先にインナ側のパッド摺動部３２Ｂ，３３Ｂに組み付けられた新品状態のインナ側のパッド１０２を最もインナ側の端位置に位置させた状態とすれば、新品状態のアウタ側のパッド１０２を、ロータ径方向内側から外側に移動させる際に、これを阻害しないで通過させることが可能である。 That is, the pad sliding portions 32A, 32B, 33A, 33B and the support connecting portion 51 forming the pad assembling space 52 and the pad arrangement space 61 were first assembled to the pad sliding portions 32B, 33B on the inner side. If the pad 102 on the inner side in the new state is positioned at the end position on the innermost side, the pad 102 on the outer side in the new state will not be hindered when moving from the inside to the outside in the radial direction of the rotor. It is possible to pass through with.
　この関係を、図１０を参照して、さらに説明する。なお、図１０も、キャリパ本体１５のパッド配置空間６１の近傍を、径方向基準線の方向に沿ってロータ径方向外側から見た図である。図１０は、新品状態のアウタ側のパッド１０２を先にアウタ側のパッド摺動部３２Ａ，３３Ａに組み付けてから、新品状態のインナ側のパッド１０２をインナ側のパッド摺動部３２Ｂ，３３Ｂに組み付ける場合を例示している。 This relationship will be further described with reference to FIG. Note that FIG. 10 is also a view of the vicinity of the pad arrangement space 61 of the caliper main body 15 as viewed from the outside in the radial direction of the rotor along the direction of the radial reference line. In FIG. 10, the pad 102 on the outer side in the new state is first assembled to the pad sliding portions 32A and 33A on the outer side, and then the pad 102 on the inner side in the new state is attached to the pad sliding portions 32B and 33B on the inner side. The case of assembling is illustrated.
　径方向基準線の方向に見て、アウタ側のパッド摺動部３２Ａ，３３Ａに先に組み付けられて最もアウタ側に寄せられた新品状態のアウタ側にあるパッド１０２のライニング材１２２の先端面１２７とロータ回入側の側面１２８との境界位置Ｘ１と；インナ側にあるパッド摺動部３２Ｂのトルク受面７１Ｂとロータ対向面７２Ｂとの境界位置Ｘ２と；の最短距離を、Ｃｓｍとする。この最短距離Ｃｓｍが、インナ側のパッド１０２の新品時厚さＰｔよりも大きくなるように、パッド組付用空間５２およびパッド配置空間６１の形状が設定されている。ただし、境界位置Ｘ２から境界位置Ｘ１と境界位置Ｘ２とを結ぶ線に直交してロータ回出側に延出する直線は、中間壁面部８６Ｂに交差しない。 When viewed in the direction of the radial reference line, the tip surface 127 of the lining material 122 of the pad 102 on the outer side in the new state, which is assembled first to the pad sliding portions 32A and 33A on the outer side and is brought closer to the outer side. The shortest distance between and the boundary position X1 between the rotor and the side surface 128 on the rotor entry side; and the boundary position X2 between the torque receiving surface 71B of the pad sliding portion 32B on the inner side and the rotor facing surface 72B; is defined as Csm. The shapes of the pad assembly space 52 and the pad arrangement space 61 are set so that the shortest distance Csm is larger than the new thickness Pt of the pad 102 on the inner side. However, the straight line extending from the boundary position X2 to the rotor rotation side orthogonal to the line connecting the boundary position X1 and the boundary position X2 does not intersect the intermediate wall surface portion 86B.
　また、同様に、インナ側にあるパッド摺動部３２Ｂ，３３Ｂに先に組み付けられて最もインナ側に寄せられた新品状態のインナ側のパッド１０２のパッド組付用空間５２側にあるライニング材１２２の先端面１２７とロータ回入側の側面１２８との境界位置と；アウタ側にあるパッド摺動部３３Ａのトルク受面８１Ａとロータ対向面８２Ａとの境界位置と；の最短距離を、Ｃｓｍとする。この最短距離Ｃｓｍが、アウタ側のパッド１０２の新品時厚さＰｔよりも大きくなるように、パッド組付用空間５２およびパッド配置空間６１の形状が設定されている。 Similarly, the lining material 122 on the pad assembly space 52 side of the pad 102 on the new inner side, which is assembled first to the pad sliding portions 32B and 33B on the inner side and is brought closer to the inner side. The shortest distance between the tip surface 127 and the side surface 128 on the rotor entry side; and the boundary position between the torque receiving surface 81A of the pad sliding portion 33A on the outer side and the rotor facing surface 82A; To do. The shapes of the pad assembly space 52 and the pad arrangement space 61 are set so that the shortest distance Csm is larger than the new thickness Pt of the pad 102 on the outer side.
　すなわち、Ｃｓｍ＞Ｐｔとなるように、パッド組付用空間５２およびパッド配置空間６１の形状が設定されている。 That is, the shapes of the pad assembly space 52 and the pad arrangement space 61 are set so that Csm> Pt.
　ここで、最短距離Ｃｓｍについて、さらに説明する。 Here, the shortest distance Csm will be further described.
　上記したようにＣｏ＝Ｃｉである。
　Ｃｔ＝Ｃｏ＋Ｃｓｘ＋Ｃｉとする。
　また、Ａ＝Ｃｓｘ＋Ｃｏ－Ｐｔとする。
　ここで、Ａは、アウタ側のパッド１０２の先端面１２７とインナ側のパッド摺動部３２Ｂのロータ対向面７２Ｂとの距離である。 As described above, Co = Ci.
Let Ct = Co + Csx + Ci.
Further, A = Csx + Co-Pt.
Here, A is the distance between the tip surface 127 of the pad 102 on the outer side and the rotor facing surface 72B of the pad sliding portion 32B on the inner side.
　また、パッド摺動部３２Ｂ，３３Ａのトルク受面７１Ｂ，８１Ａと、アウタ側のパッド１０２のライニング材１２２の境界位置Ｘ１との最短距離をＳ、境界位置Ｘ１と境界位置Ｘ２とを結ぶ線と、トルク受面７１Ｂ，８１Ａとのなす角をθとする。 Further, the shortest distance between the torque receiving surfaces 71B and 81A of the pad sliding portions 32B and 33A and the boundary position X1 of the lining material 122 of the pad 102 on the outer side is S, and the line connecting the boundary position X1 and the boundary position X2. Let θ be the angle formed by the torque receiving surfaces 71B and 81A.
　すると、
　ｔａｎθ＝Ｓ／Ａ
　θ＝ａｒｃｔａｎ（Ｓ／Ａ）
　ｃｏｓθ＝Ａ／Ｃｓｍ
　ｃｏｓ（ａｒｃｔａｎ（Ｓ／Ａ））＝Ａ／Ｃｓｍ
　Ｃｓｍ＝Ａ／ｃｏｓ（ａｒｃｔａｎ（Ｓ／Ａ））
　Ｃｓｍ＝（Ｃｓｘ＋Ｃｏ－Ｐｔ）／ｃｏｓ（ａｒｃｔａｎ（Ｓ／Ａ）） Then
tan θ = S / A
θ = arctan (S / A)
cosθ = A / Csm
cos (arctan (S / A)) = A / Csm
Csm = A / cos (arctan (S / A))
Csm = (Csx + Co-Pt) / cos (arctan (S / A))
　以上により、一方のインナ側のパッド摺動部３２Ｂのディスクロータ側かつロータ回出側の端部となる境界位置Ｘ２は、他方のアウタ側のパッド摺動部３３Ａにおいてディスクロータ１１から離間する方向の端位置に一つの新品のパッド１０２を配置したときに、このパッド１０２との最短距離Ｃｓｍが、パッド１０２の一つ分の厚みＰｔより長くなる位置、すなわちＣｓｍ＞Ｐｔとなる位置に設けられている。 As described above, the boundary position X2, which is the end of the pad sliding portion 32B on the inner side on the disc rotor side and the rotor rotation side, is in the direction of being separated from the disc rotor 11 on the pad sliding portion 33A on the other outer side. When one new pad 102 is placed at the end position of the pad 102, the shortest distance Csm from the pad 102 is provided at a position where the thickness Pt is longer than the thickness Pt of one pad 102, that is, at a position where Csm> Pt. ing.
　言い換えれば、一方のインナ側のパッド摺動部３２Ｂのディスクロータ側かつロータ回出側の端部となる境界位置Ｘ２は、他方のアウタ側のパッド摺動部３３Ａにおいてディスクロータ１１から離間する方向の端位置に一つの新品のパッド１０２を配置したときに、このパッド１０２との空隙がパッド１０２の一つ分の厚みＰｔよりも長くなる位置に、設けられている。 In other words, the boundary position X2, which is the end of the pad sliding portion 32B on one inner side on the disc rotor side and the rotor rotation side, is in the direction of being separated from the disc rotor 11 on the pad sliding portion 33A on the other outer side. When one new pad 102 is arranged at the end position of the pad 102, the gap with the pad 102 is provided at a position where the thickness Pt is longer than the thickness Pt of one pad 102.
　よって、アウタ側のパッド１０２、インナ側のパッド１０２の順に組み付ける場合に、新品状態の一対のパッド１０２をキャリパ本体１５に組み付けることができる。 Therefore, when assembling the pad 102 on the outer side and the pad 102 on the inner side in this order, a pair of pads 102 in a new state can be assembled to the caliper main body 15.
　同様に、他方のアウタ側のパッド摺動部３３Ａのディスクロータ側かつロータ回出側の端部となる境界位置は、一方のインナ側のパッド摺動部３２Ｂにおいてディスクロータ１１から離間する方向の端位置に一つの新品のパッド１０２を配置したときに、このパッド１０２との最短距離がパッド１０２の一つ分の厚みよりも長くなる位置に、設けられている。 Similarly, the boundary position of the pad sliding portion 33A on the other outer side, which is the end on the disc rotor side and the rotor rotation side, is in the direction away from the disc rotor 11 in the pad sliding portion 32B on the inner side of one. When one new pad 102 is arranged at the end position, it is provided at a position where the shortest distance from the pad 102 is longer than the thickness of one pad 102.
　言い換えれば、他方のアウタ側のパッド摺動部３３Ａのディスクロータ側かつロータ回出側の端部となる境界位置は、一方のインナ側のパッド摺動部３２Ｂにおいてディスクロータ１１から離間する方向の端位置に一つの新品のパッド１０２を配置したときに、このパッド１０２との空隙がパッド１０２の一つ分の厚みよりも長くなる位置に、設けられている。 In other words, the boundary position of the pad sliding portion 33A on the other outer side, which is the end on the disc rotor side and the rotor rotation side, is in the direction away from the disc rotor 11 in the pad sliding portion 32B on the inner side. When one new pad 102 is arranged at the end position, it is provided at a position where the gap with the pad 102 becomes longer than the thickness of one pad 102.
　よって、インナ側のパッド１０２、アウタ側のパッド１０２の順に組み付ける場合に、新品状態の一対のパッド１０２をキャリパ本体１５に組み付けることができる。 Therefore, when assembling the inner pad 102 and the outer pad 102 in this order, a pair of pads 102 in a new state can be assembled to the caliper main body 15.
　上記した特許文献１には、キャリパ本体にロータ径方向に開口する空間を設け、この空間にパッドを配置する構造のディスクブレーキが開示されている。ディスクブレーキにおいて小型化することが求められているが、単純に小型化すると、キャリパ本体にパッドが組み付けられなくなってしまう。 The above-mentioned Patent Document 1 discloses a disc brake having a structure in which a space open in the rotor radial direction is provided in the caliper main body and a pad is arranged in this space. Disc brakes are required to be miniaturized, but if they are simply miniaturized, the pads cannot be attached to the caliper body.
　これに対し、本実施形態では、ロータ軸方向において、アウタ側のパッド摺動部３３Ａとパッド組付用空間５２とを合わせた距離であるＣｏ＋Ｃｓｘが、パッド１０２の二つ分の厚み２×Ｐｔよりも小さくなっている。同様に、ロータ軸方向において、インナ側のパッド摺動部３２Ｂとパッド組付用空間５２とを合わせた距離であるＣｉ＋Ｃｓｘが、パッド１０２の二つ分の厚み２×Ｐｔよりも小さくなっている。これにより、少なくともロータ軸方向にキャリパ本体１５を小型化することができる。 On the other hand, in the present embodiment, Co + Csx, which is the total distance between the pad sliding portion 33A on the outer side and the pad assembling space 52 in the rotor axial direction, is 2 × Pt, which is the thickness of two pads 102. Is smaller than Similarly, in the rotor axial direction, Ci + Csx, which is the total distance between the pad sliding portion 32B on the inner side and the pad assembling space 52, is smaller than the thickness 2 × Pt of two pads 102. .. As a result, the caliper main body 15 can be miniaturized at least in the rotor axial direction.
　その上で、一方のインナ側のパッド摺動部３２Ｂのディスクロータ側かつロータ回出側の端部となる境界位置Ｘ２が、他方のアウタ側のパッド摺動部３３Ａにおいてディスクロータ１１から離間する方向の端位置に一つの新品のパッド１０２を配置したときに、このパッド１０２との最短距離Ｃｓｍ、すなわち空隙がパッド１０２の一つ分の厚みＰｔよりも長くなる位置に、設けられている。 On that basis, the boundary position X2, which is the end of the pad sliding portion 32B on the inner side on the disc rotor side and the rotor rotation side, is separated from the disc rotor 11 on the pad sliding portion 33A on the other outer side. When one new pad 102 is arranged at the end position in the direction, it is provided at the shortest distance Csm from the pad 102, that is, at a position where the gap is longer than the thickness Pt of one pad 102.
　同様に、他方のアウタ側のパッド摺動部３３Ａのディスクロータ側かつロータ回出側の端部となる境界位置が、一方のインナ側のパッド摺動部３２Ｂにおいてディスクロータ１１から離間する方向の端位置に一つの新品のパッド１０２を配置したときに、このパッド１０２との最短距離、すなわち空隙がパッド１０２の一つ分の厚みよりも長くなる位置に、設けられている。 Similarly, the boundary position of the pad sliding portion 33A on the other outer side, which is the end portion on the disc rotor side and the rotor rotation side, is in the direction of being separated from the disc rotor 11 in the pad sliding portion 32B on the inner side. When one new pad 102 is arranged at the end position, it is provided at the shortest distance from the pad 102, that is, at a position where the gap is longer than the thickness of one pad 102.
　これにより、新品状態の一対のパッド１０２をキャリパ本体１５に組み付けることができる。 As a result, a pair of pads 102 in a new state can be assembled to the caliper main body 15.
　したがって、新品状態の一対のパッド１０２のキャリパ本体１５への組み付け性を確保しつつも、キャリパ本体１５、ひいてはキャリパ１２の小型化を図ることができる。その結果、キャリパ１２の軽量化、コスト低減および車両への搭載性向上を図ることができる。 Therefore, it is possible to reduce the size of the caliper body 15 and eventually the caliper 12 while ensuring the ease of assembling the pair of pads 102 in a new state to the caliper body 15. As a result, the weight of the caliper 12 can be reduced, the cost can be reduced, and the mountability on the vehicle can be improved.
　また、パッド組付用空間５２は、車両前進時のロータ回入側に設けられる。そのため、受けるトルクが大きいロータ回出側のパッド摺動部３２Ａ，３３Ｂ側を支持連結部５１で連結してその剛性を高めることができる。また、パッド摺動部３２Ａ，３３Ｂのパッド１０２を係止する係止面部７３Ａ，８３Ｂを、支持連結部５１の係止面部５３で連続させることができる。そのため、キャリパ本体１５は、ロータ回出側のパッド１０２への当接面積が増える。よって、耐振性が向上する。加えて、パッド摺動部３２Ａ，３３Ｂ間にパッド組付用空間を形成するための加工が不要となり、加工コストを低減することができる。すなわち、パッド組付用空間をロータ回出側に設ける場合と比べて、キャリパ本体１５の剛性および耐振性を効果的に高めることができ、加工コストを低減することができる。
　なお、支持連結部５１を必ずしも設けなくてもよい。すなわち、パッド摺動部３２Ａ，３３Ｂ間の隙間を、パッド摺動部３２Ｂ，３３Ａ間の隙間、言い換えれば、ロータ対向面７２Ｂ，８２Ａ間の距離よりもロータ軸方向に狭めれば、キャリパ本体１５の剛性および耐振性の向上に効果がある。
　なお、本実施形態では、パッド組付用空間５２をキャリパ本体１５の車両前進時のロータ回入側だけに形成している。しかし、この構成に加えて、パッド組付用空間５２をキャリパ本体１５の車両前進時のロータ回出側にも形成してもよい。また、パッド組付用空間５２をキャリパ本体１５の車両前進時のロータ回出側だけに形成してもよい。
　さらに、ロータ対向面７２Ｂ，８２Ａは、ロータ軸線に対して垂直に広がるようにしているが、ロータ軸線に対して斜めに広がるように傾斜していてもよい。 Further, the pad assembly space 52 is provided on the rotor entry side when the vehicle is moving forward. Therefore, the pad sliding portions 32A and 33B on the rotor rotation side, which receive a large torque, can be connected by the support connecting portion 51 to increase the rigidity. Further, the locking surface portions 73A and 83B for locking the pads 102 of the pad sliding portions 32A and 33B can be made continuous by the locking surface portion 53 of the support connecting portion 51. Therefore, the caliper main body 15 has an increased contact area with the pad 102 on the rotor rotation side. Therefore, the vibration resistance is improved. In addition, processing for forming a pad assembly space between the pad sliding portions 32A and 33B becomes unnecessary, and the processing cost can be reduced. That is, the rigidity and vibration resistance of the caliper main body 15 can be effectively increased and the processing cost can be reduced as compared with the case where the pad assembly space is provided on the rotor rotation side.
The support connecting portion 51 does not necessarily have to be provided. That is, if the gap between the pad sliding portions 32A and 33B is narrower in the rotor axial direction than the gap between the pad sliding portions 32B and 33A, in other words, the distance between the rotor facing surfaces 72B and 82A, the caliper main body 15 It is effective in improving the rigidity and vibration resistance of the product.
In this embodiment, the pad assembly space 52 is formed only on the rotor turning side of the caliper main body 15 when the vehicle is moving forward. However, in addition to this configuration, the pad assembly space 52 may also be formed on the rotor rotation side of the caliper main body 15 when the vehicle is moving forward. Further, the pad assembly space 52 may be formed only on the rotor rotation side of the caliper main body 15 when the vehicle is moving forward.
Further, although the rotor facing surfaces 72B and 82A are designed to spread perpendicularly to the rotor axis, they may be inclined so as to spread diagonally to the rotor axis.
　以上に述べた本実施形態の第１の態様に係るディスクブレーキは、ディスクロータを押圧する一対のパッドと；前記ディスクロータを跨いで配置されるとともにロータ径方向に開口するパッド組付用空間と、前記パッド組付用空間のロータ軸方向の両側に前記一対のパッドを前記ロータ軸方向に摺動可能に支持する一対のパッド摺動部とを有するキャリパ本体と；を備え、前記ロータ軸方向において、アウタ側およびインナ側のどちらか一方の前記パッド摺動部と前記パッド組付用空間とを合わせた長さが、前記パッドの二つ分の厚みよりも短く、前記一対のパッド摺動部の一方における前記ディスクロータ側の端部が、前記一対のパッド摺動部の他方における前記ディスクロータから離間する方向の端部位置に一つの前記パッドを配置したときに、当該パッドとの空隙が、前記パッドの一つ分の厚みよりも長くなる位置に設けられている。
　この構成によれば、小型化が可能となる。 The disc brake according to the first aspect of the present embodiment described above includes a pair of pads that press the disc rotor; and a pad assembly space that is arranged so as to straddle the disc rotor and opens in the rotor radial direction. A caliper body having a pair of pad sliding portions that slidably support the pair of pads in the rotor axial direction on both sides of the pad assembly space in the rotor axial direction; In the above, the total length of the pad sliding portion on either the outer side or the inner side and the pad assembling space is shorter than the thickness of two of the pads, and the pair of pads slide. When one of the pads is arranged at an end position on one side of the disc rotor side in a direction away from the disc rotor on the other side of the pair of pad sliding portions, a gap with the pad is provided. Is provided at a position longer than the thickness of one pad.
According to this configuration, miniaturization is possible.
　また、第２の態様は、第１の態様において、前記パッド組付用空間が、車両前進時の前記ディスクロータの回転方向の入口側に形成されている。 Further, in the second aspect, in the first aspect, the pad assembly space is formed on the inlet side in the rotational direction of the disc rotor when the vehicle is moving forward.
　また、第３の態様は、第１の態様または第２の態様において、前記パッド摺動部の前記ディスクロータ側の端部が、前記パッド摺動部のディスクロータ側かつロータ回出方向の端部となる境界位置にある。 Further, in the third aspect, in the first aspect or the second aspect, the end of the pad sliding portion on the disc rotor side is the end of the pad sliding portion on the disc rotor side and in the rotor rotation direction. It is in the boundary position that becomes a part.
　また、第４の態様に係るディスクブレーキは、ディスクロータを押圧する一対のパッドと；前記ディスクロータを跨いで配置されるとともにロータ径方向に開口するパッド組付用空間と、前記パッド組付用空間のロータ軸方向の両側に前記一対のパッドを前記ロータ軸方向に摺動可能に支持する一対のパッド摺動部とを有するキャリパ本体と；を備え、前記ロータ軸方向において、アウタ側およびインナ側のどちらか一方の前記パッド摺動部と前記パッド組付用空間とを合わせた長さが、前記パッドの二つ分の厚みよりも短く、前記一対のパッド摺動部の一方における前記ディスクロータ側の端部が、前記一対のパッド摺動部の他方における前記ディスクロータから離間する方向の端部位置に一つの前記パッドを配置したときに、当該パッドとの距離が、前記パッドの一つ分の厚みよりも長くなる位置に設けられている。
　この構成によれば、小型化が可能となる。 Further, the disc brake according to the fourth aspect includes a pair of pads for pressing the disc rotor; a pad assembly space arranged straddling the disc rotor and opening in the rotor radial direction, and the pad assembly space. A caliper body having a pair of pad sliding portions that slidably support the pair of pads in the rotor axial direction on both sides of the space in the rotor axial direction; The total length of the pad sliding portion on either side and the pad assembling space is shorter than the thickness of two of the pads, and the disc in one of the pair of pad sliding portions. When one of the pads is arranged at the end position of the end on the rotor side in the direction away from the disc rotor on the other side of the pair of pad sliding portions, the distance from the pad is one of the pads. It is provided at a position that is longer than the thickness of one.
According to this configuration, miniaturization is possible.
　また、第５の態様は、第４の態様において、前記パッド組付用空間が、車両前進時の前記ディスクロータの回転方向の入口側に形成されている。 Further, in the fifth aspect, in the fourth aspect, the pad assembly space is formed on the inlet side in the rotational direction of the disc rotor when the vehicle is moving forward.
　また、第６の態様は、第４の態様または第５の態様において、前記パッド摺動部の前記ディスクロータ側の端部が、前記パッド摺動部のディスクロータ側かつロータ回出方向の端部となる境界位置にある。 Further, in the sixth aspect, in the fourth or fifth aspect, the end of the pad sliding portion on the disc rotor side is the end of the pad sliding portion on the disc rotor side and in the rotor rotation direction. It is in the boundary position that becomes a part.
　本発明のディスクブレーキによれば、小型化が可能となる。 According to the disc brake of the present invention, miniaturization is possible.
　１０　ディスクブレーキ
　１１　ディスクロータ
　１５　キャリパ本体
　３２Ａ，３２Ｂ，３３Ａ，３３Ｂ　パッド摺動部
　５２　パッド組付用空間 10 Disc brake 11 Disc rotor 15 Caliper body 32A, 32B, 33A, 33B Pad sliding part 52 Pad assembly space

Claims (6)

  1. 　ディスクロータを押圧する一対のパッドと；
    　前記ディスクロータを跨いで配置されるとともにロータ径方向に開口するパッド組付用空間と、前記パッド組付用空間のロータ軸方向の両側に前記一対のパッドを前記ロータ軸方向に摺動可能に支持する一対のパッド摺動部とを有するキャリパ本体と；
    を備え、
    　前記ロータ軸方向において、アウタ側およびインナ側のどちらか一方の前記パッド摺動部と前記パッド組付用空間とを合わせた長さが、前記パッドの二つ分の厚みよりも短く、
    　前記一対のパッド摺動部の一方における前記ディスクロータ側の端部が、前記一対のパッド摺動部の他方における前記ディスクロータから離間する方向の端部位置に一つの前記パッドを配置したときに、当該パッドとの空隙が、前記パッドの一つ分の厚みよりも長くなる位置に設けられている
    ことを特徴とするディスクブレーキ。     With a pair of pads that press the disc rotor;
    The pair of pads can be slidable in the rotor axial direction on both sides of the pad assembling space that is arranged straddling the disc rotor and opens in the rotor radial direction and the pad assembling space in the rotor axial direction. With a caliper body having a pair of supporting pad sliding parts;
    With
    In the rotor axial direction, the total length of the pad sliding portion on either the outer side or the inner side and the pad assembly space is shorter than the thickness of two pads.
    When one of the pads is arranged at an end position on the disc rotor side of one of the pair of pad sliding portions in a direction away from the disc rotor of the other of the pair of pad sliding portions. , A disc brake characterized in that a gap with the pad is provided at a position longer than the thickness of one pad.
  2. 　前記パッド組付用空間が、車両前進時の前記ディスクロータの回転方向の入口側に形成されている
    ことを特徴とする請求項１に記載のディスクブレーキ。     The disc brake according to claim 1, wherein the pad assembly space is formed on the inlet side in the rotational direction of the disc rotor when the vehicle is moving forward.
  3. 　前記パッド摺動部の前記ディスクロータ側の端部が、前記パッド摺動部のディスクロータ側かつロータ回出方向の端部となる境界位置にある
    ことを特徴とする請求項１または請求項２に記載のディスクブレーキ。     Claim 1 or claim 2 is characterized in that the end portion of the pad sliding portion on the disc rotor side is located at a boundary position which is the end portion of the pad sliding portion on the disc rotor side and in the rotor rotation direction. Disc brakes described in.
  4. 　ディスクロータを押圧する一対のパッドと；
    　前記ディスクロータを跨いで配置されるとともにロータ径方向に開口するパッド組付用空間と、前記パッド組付用空間のロータ軸方向の両側に前記一対のパッドを前記ロータ軸方向に摺動可能に支持する一対のパッド摺動部とを有するキャリパ本体と；
    を備え、
    　前記ロータ軸方向において、アウタ側およびインナ側のどちらか一方の前記パッド摺動部と前記パッド組付用空間とを合わせた長さが、前記パッドの二つ分の厚みよりも短く、
    　前記一対のパッド摺動部の一方における前記ディスクロータ側の端部が、前記一対のパッド摺動部の他方における前記ディスクロータから離間する方向の端部位置に一つの前記パッドを配置したときに、当該パッドとの距離が、前記パッドの一つ分の厚みよりも長くなる位置に設けられている
    ことを特徴とするディスクブレーキ。     With a pair of pads that press the disc rotor;
    The pair of pads can be slidable in the rotor axial direction on both sides of the pad assembling space that is arranged straddling the disc rotor and opens in the rotor radial direction and the pad assembling space in the rotor axial direction. With a caliper body having a pair of supporting pad sliding parts;
    With
    In the rotor axial direction, the total length of the pad sliding portion on either the outer side or the inner side and the pad assembly space is shorter than the thickness of two pads.
    When one of the pads is arranged at an end position on the disc rotor side of one of the pair of pad sliding portions in a direction away from the disc rotor of the other of the pair of pad sliding portions. A disc brake characterized in that the distance from the pad is longer than the thickness of one of the pads.
  5. 　前記パッド組付用空間が、車両前進時の前記ディスクロータの回転方向の入口側に形成されている
    ことを特徴とする請求項４に記載のディスクブレーキ。     The disc brake according to claim 4, wherein the pad assembly space is formed on the inlet side in the rotational direction of the disc rotor when the vehicle is moving forward.
  6. 　前記パッド摺動部の前記ディスクロータ側の端部が、前記パッド摺動部のディスクロータ側かつロータ回出方向の端部となる境界位置にある
    ことを特徴とする請求項４または請求項５に記載のディスクブレーキ。     4. The fourth or fifth aspect of the present invention, wherein the end portion of the pad sliding portion on the disc rotor side is located at a boundary position which is the end portion of the pad sliding portion on the disc rotor side and in the rotor rotation direction. Disc brakes described in.
PCT/JP2020/046980 2019-12-25 2020-12-16 Disc brake WO2021131973A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE112020006321.6T DE112020006321T5 (en) 2019-12-25 2020-12-16 disc brake
JP2021567343A JP7241922B2 (en) 2019-12-25 2020-12-16 disc brake
CN202080089766.5A CN114901963A (en) 2019-12-25 2020-12-16 Disc brake

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JP2019233896 2019-12-25
JP2019-233896 2019-12-25

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JP (1) JP7241922B2 (en)
CN (1) CN114901963A (en)
DE (1) DE112020006321T5 (en)
WO (1) WO2021131973A1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5699132A (en) * 1979-12-28 1981-08-10 Savin Corp Feeder
JPH0685937A (en) * 1992-09-04 1994-03-25 Matsushita Electric Ind Co Ltd Multi-point controller for video conference
JP2014173623A (en) * 2013-03-06 2014-09-22 Hitachi Automotive Systems Ltd Disc brake

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5699132U (en) * 1980-12-16 1981-08-05
JP2554959Y2 (en) * 1993-05-21 1997-11-19 日信工業株式会社 Disc brakes for vehicles

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5699132A (en) * 1979-12-28 1981-08-10 Savin Corp Feeder
JPH0685937A (en) * 1992-09-04 1994-03-25 Matsushita Electric Ind Co Ltd Multi-point controller for video conference
JP2014173623A (en) * 2013-03-06 2014-09-22 Hitachi Automotive Systems Ltd Disc brake

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JP7241922B2 (en) 2023-03-17
CN114901963A (en) 2022-08-12
DE112020006321T5 (en) 2022-10-06

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