WO2021037114A1 - Vehicle seat and height adjuster thereof - Google Patents

Vehicle seat and height adjuster thereof Download PDF

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Publication number
WO2021037114A1
WO2021037114A1 PCT/CN2020/111609 CN2020111609W WO2021037114A1 WO 2021037114 A1 WO2021037114 A1 WO 2021037114A1 CN 2020111609 W CN2020111609 W CN 2020111609W WO 2021037114 A1 WO2021037114 A1 WO 2021037114A1
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WO
WIPO (PCT)
Prior art keywords
pawl
locking
lock
car seat
fixed cover
Prior art date
Application number
PCT/CN2020/111609
Other languages
French (fr)
Chinese (zh)
Inventor
蔡成新
左玉宽
李竹青
Original Assignee
湖北航嘉麦格纳座椅***有限公司
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 湖北航嘉麦格纳座椅***有限公司 filed Critical 湖北航嘉麦格纳座椅***有限公司
Publication of WO2021037114A1 publication Critical patent/WO2021037114A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/04—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable
    • B60N2/16—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable
    • B60N2/1635—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable characterised by the drive mechanism
    • B60N2/167—Ratchet mechanism

Definitions

  • the invention relates to the technical field of vehicle seats, in particular to a vehicle seat and a height adjuster thereof.
  • the height of the car seat can be adjusted through the lifting mechanism to meet the needs of different users to provide a comfortable ride.
  • the lifting mechanism includes a height adjuster and a car seat tooth plate.
  • the height adjuster is used to control the realization of the lifting function of the car seat.
  • the height adjuster is composed of two parts: a driving part and a core part.
  • the core part may creep (slowly rotate) under the action of alternating loads.
  • the creep of the core part will eventually cause the height of the car seat to change, and the user needs to re-adjust after a period of time.
  • the height of the car seat to ensure the comfort of the car seat.
  • the object of the present invention is to provide a car seat and a height adjuster thereof, which can prevent the height of the car seat from changing due to the peristaltic movement of the core component during use, and ensure the comfort of the car seat.
  • the present invention provides a height adjuster for a car seat, which includes a housing, a fixed cover, a driving part, a locking part, and a core part provided with a ratchet.
  • the fixed cover is fixed on the housing.
  • the top end of the body is enclosed to form an accommodating cavity, the core piece and the locking part are located in the accommodating cavity, the ratchet wheel is provided with an inner gear ring;
  • the driving part includes a driving plate connected with the operating handle and The pawl and the blocking plate are arranged in the accommodating cavity, the driving plate, the blocking plate and the core are coaxial, the driving plate is rotatably connected with the fixed cover, and the blocking plate is rotatably connected to the fixed cover.
  • the stagnation piece is sandwiched between the fixed cover and the core piece, ratchet teeth are respectively provided on both sides of the pawl, the first hinge point of the pawl is hinged with the drive plate, and the pawl
  • the second hinge point is hinged to the blocking plate, and the rotation of the drive plate can drive the pawl to rotate around the second hinge point so that the ratchet tooth on one side of the pawl and the inner
  • the gear ring is engaged or disengaged;
  • the locking portion includes a lock spring and a lock pawl, the lock pawl is provided with a lock tooth and is rotatably connected with the fixed cover through a rotation point, and the lock tooth can act on the lock spring
  • the lower part is engaged with the inner gear ring, and the receiving cavity is also provided with a connecting piece that rotates synchronously with the driving plate. The rotation of the connecting piece can act on the rotation of the lock pawl around the rotation point to make The lock tooth engages or disengages from the inner gear ring
  • the lock spring can provide elastic force and act on the lock pawl so that the lock tooth of the lock pawl meshes with the inner gear ring of the ratchet. Therefore, when the height of the car seat is adjusted to a proper position by the height adjuster, the drive plate returns to the original position , The connecting piece returns to the original position. At this time, the lock tooth meshes with the inner gear ring under the action of the lock spring. When the core part of the height adjuster rotates due to the influence of the alternating load, it will drive the ratchet wheel to rotate. The rotation of the ratchet wheel is transmitted to the fixed cover by the lock pawl.
  • the fixed cover Since the fixed cover is fixed with the housing and does not rotate, the rotation of the ratchet wheel is restricted, thereby limiting the rotation of the core parts and the car seat, and achieving the effect of anti-creeping. In turn, the seat can be prevented from sinking.
  • the drive plate rotates under the drive of the operating handle, and acts on the lock pawl through the connecting piece to make the lock pawl rotate around the rotation point and separate the lock tooth from the inner gear ring.
  • the locking part is in the unlocked state, and the height of the car seat can be adjusted by turning the operating handle (drive plate). After the position is adjusted, the operating handle (drive plate) returns to the original position, and the locking teeth re-engages with the inner gear ring. It can be locked to prevent the height of the car seat from changing during use.
  • the height adjuster can realize two-way drive adjustment of the height position of the car seat.
  • the locking part has a simple structure, which can limit the peristaltic movement of the core during use, so that the car seat can remain more comfortable
  • the height of the car seat ensures the comfort of the car seat.
  • the connecting piece is provided with a slideway and a limiting groove opened in the slideway
  • the locking pawl further includes a limiting member
  • the limiting member and the locking tooth are respectively located at the rotation point
  • the lock spring is a leaf spring sandwiched between the connecting piece and the locking pawl, and the leaf spring is fixed to the locking pawl.
  • the leaf spring is provided with a connecting hole, and the connecting hole is sleeved on the outside of the rotation point and can rotate around the rotation point.
  • the distance between the rotation point and the locking tooth is greater than the distance between the rotation point and the limiting member.
  • the locking portion includes two locking pawls, and the two locking pawls are arranged symmetrically with respect to the radial direction of the ratchet wheel.
  • one of the upper end surface of the locking pawl and the lower end surface of the fixing cover is provided with a protruding column, and the other is provided with a through hole or a groove adapted to the protruding column.
  • the boss is located in the through hole or the groove and can rotate relative to the through hole or the groove to form the rotation point.
  • the fixed cover is provided with a special-shaped hole
  • the outer edge of the special-shaped hole is an arc-shaped side with an opening toward the center of the fixed cover, and both circumferential sides of the arc-shaped side are provided with An extension hole extending from one side of the center of the fixed cover;
  • the first hinge point passes through the special-shaped hole and is hinged with the drive plate, and the pawls are respectively provided on both sides of the first hinge point
  • a side boss in the process of returning the drive plate to the original position, the side boss can abut the arc edge and slide along the arc edge, so that the ratchet tooth and the inner tooth The circle breaks away.
  • the blocking plate is further provided with an elastic member capable of providing axial supporting force.
  • the present invention also provides a car seat, which includes the height adjuster as described above.
  • Fig. 1 is a schematic structural diagram of a height adjuster for a car seat provided by an embodiment of the present invention
  • Figure 2 is an exploded view of Figure 1;
  • Figure 3 is a schematic structural view of the locking part in a locked state
  • Figure 4 is a schematic structural diagram of the locking part in an unlocked state
  • Figure 5 is an exploded view of the locking part
  • Figure 6 is a schematic diagram of the structure of the pawl
  • Fig. 7 is a schematic diagram of the structure of the fixed cover.
  • 2-Fixed cover 21-shaped hole, 211-curved side, 212-extended hole, 22-through hole or groove;
  • Figure 1 is a schematic structural diagram of a height adjuster for a car seat provided by an embodiment of the present invention
  • Figure 2 is an exploded view of Figure 1
  • Figure 3 is a structural schematic diagram of the locking portion in a locked state
  • 4 is a schematic structural diagram of the locking part in an unlocked state
  • FIG. 5 is an exploded view of the locking part
  • FIG. 6 is a schematic structural diagram of a pawl
  • FIG. 7 is a structural schematic diagram of a fixed cover.
  • the embodiment of the present invention provides a car seat and a height adjuster thereof, wherein the car seat includes the above-mentioned height adjuster, and the height adjuster is used to adjust the height of the car seat so that the car seat can meet the height requirements of the user , Improve user comfort.
  • the height adjuster includes a housing 1, a fixed cover 2, a driving part, a locking part 4, and a core part 8.
  • the fixed cover 2 is fixed on the top of the housing 1 and the two surround them to form an accommodating cavity.
  • the core piece 8 and the locking portion 4 are both located in the accommodating cavity, and the core piece 8 is provided with a ratchet wheel 5, and the ratchet wheel 5 is provided with an inner gear ring 51.
  • the driving part includes a driving plate 3, a pawl 6 and a blocking piece 7 arranged in the accommodating cavity, wherein the driving plate 3, the blocking piece 7 and the core piece 8 are coaxially arranged.
  • the drive plate 3 and the fixed cover 2 are rotatably connected, the blocking piece 7 is sandwiched between the fixed cover 2 and the core part 8, and both sides of the pawl 6 are respectively provided with ratchets adapted to the inner ring gear 51
  • the tooth 61 and the pawl 6 include a first hinge point 62 and a second hinge point 63, wherein the first hinge point 62 is hinged to the drive plate 3, and the second hinge point 63 is hinged to the blocking plate 7.
  • first hinge point 62 and the second hinge point 63 of the pawl 6 are arranged on different axes, and the second hinge point 63 is connected to the rotation axis of the blocking plate 7 (that is, the drive plate 3, the fixed cover 2, the blocking The axis of the sheet 7 and the core member 8 are different, so that the drive plate 3 hinged to the first hinge point 62 can drive the pawl 6 to rotate when it rotates.
  • the blocking plate 7 is sandwiched between the fixed cover 2 and the core member 8.
  • the ratchet wheel 5 can drive the blocking plate 7 through the second hinge point 63 to generate a tendency to rotate, and Since the blocking piece 7 is clamped between the fixed cover 2 and the core piece 8, when the blocking piece 7 rotates relative to the core piece 8 and the fixed cover 2, the rotation of the blocking piece 7 will be blocked due to frictional resistance. Therefore, when the drive plate 3 is rotated under the action of the operating handle, the pawl 6 can be driven to rotate through the first hinge point 62, and the blocking effect (frictional resistance) of the blocking plate 7 causes the pawl 6 to rotate around the second hinge point 63.
  • Both sides of the pawl 6 are respectively provided with ratchet teeth 61, that is to say, the drive plate 3 will rotate in both directions under the action of the operating handle, and the rotation of the drive plate 3 in both directions can drive the ratchet wheel 5 Rotate around the second hinge point 63 until the ratchet tooth 61 engages with the ring gear 51, so that the bidirectional drive of the height adjuster can be realized.
  • the ratchet teeth 61 on both sides of the pawl 6 at most only one ratchet tooth 61 can mesh with the ring gear 51 at the same time.
  • the locking portion 4 includes a lock spring 42 and a lock pawl 41, wherein the lock pawl 41 is provided with a lock tooth 411 and is rotatably connected with the fixed cover 2 through a rotation point 43, wherein the rotation point 43 and the axis of the fixed cover 2 are not axially That is to say, the locking pawl 41 can only rotate about the rotation point 43 relative to the fixed cover 2, and the two are restricted by the rotation point 43 without the locking pawl 41 rotating around the axis of the fixed cover 2, and the locking teeth 411 can Under the action of the lock spring 42, it meshes with the inner gear ring 51 to limit the rotation of the ratchet wheel 5.
  • the accommodating cavity is also provided with a connecting piece 9 that rotates synchronously with the drive plate 3, and the rotation of the connecting piece 9 can act on the lock pawl 41 Rotate around the rotation point 43 to engage or disengage the locking tooth 411 and the ring gear 51.
  • the lock spring 42 can provide elastic force and act on the lock pawl 41 so that the lock tooth 411 of the lock pawl 41 meshes with the inner gear ring 51 of the ratchet wheel 5. Therefore, when the height of the car seat is adjusted to After the proper position, the drive plate 3 returns to the original position, and the connecting piece 9 returns to the original position. At this time, the lock tooth 411 is engaged with the inner gear ring 51 under the action of the lock spring 42.
  • the core part 8 of the height adjuster is caused by When it rotates under the influence of the alternating load, it will drive the ratchet wheel 5 to rotate, and the rotation of the ratchet wheel 5 is transmitted to the fixed cover 2 by the lock pawl 41. Since the fixed cover 2 is fixed to the housing 1 and does not rotate, it restricts The rotation of the ratchet wheel 5 limits the rotation of the core 8 and the car seat to achieve an anti-creeping effect, thereby preventing the seat from sinking.
  • the drive plate 3 rotates under the drive of the operating handle, and acts on the lock pawl 41 through the connecting piece 9 so that the lock pawl 41 rotates around the rotation point 43 and causes the lock tooth 411 to interact with the inner
  • the gear ring 51 is disengaged.
  • the locking part 4 is in an unlocked state.
  • the height of the car seat can be adjusted by turning the operating handle (drive plate 3). After the position is adjusted, the operating handle (drive plate 3) returns to its original position. , The locking teeth 411 re-engage with the inner ring gear 51 to achieve locking, and prevent the height of the car seat from changing during use.
  • the height adjuster in this embodiment can realize the bidirectional driving adjustment of the height position of the car seat.
  • the locking part 4 has a simple structure, which can limit the peristaltic movement of the core member 8 during use, so that the car The seat can maintain a relatively comfortable height, thereby ensuring the comfort of the car seat.
  • the core piece 8 is provided with a rotating shaft 11, and the blocking piece 7, the fixed cover 2 and the drive plate 3 are sequentially sleeved on the rotating shaft 11 to realize the core piece 8, the blocking piece 7, the fixed cover 2 and
  • the coaxial arrangement between the drive plates 3, of course, in this embodiment, the rotating shaft 11 can also be provided on any one of the blocking plate 7, the fixed cover 2 and the drive plate 3.
  • the connecting piece 9 is provided with a slideway 92 and a limiting groove 91 opened in the slideway 92
  • the locking pawl 41 includes a limiting member 412 that is adapted to the limiting groove 91.
  • the stopper 412 and the locking tooth 411 are respectively located on both sides of the rotation point 43, and the locking pawl 41 can rotate around the rotation point 43. Therefore, the locking pawl 41 is equivalent to a rocker structure, and the rotation point 43 is The fulcrum of the rocker, the elastic action of the lock spring 42 can make the lock tooth 411 mesh with the inner ring gear 51, and make the limiting member 412 close to the side facing the slide 92 and the limiting groove 91, and when the drive plate 3
  • the connecting piece 9 can be driven to rotate, so that the limiting member 412 presses the lock spring 42 and presses against the wall of the limiting groove 91 under the elastic force of the lock spring 42 and slides along the groove wall to The slideway 92 slides along the slideway 92, and when the limiting member 412 slides out of the limiting groove 91 along the groove wall, the locking pawl 41 rotates around the rotation point 43 and gradually separates the locking tooth 411 from the ring gear
  • Such an arrangement can make the overall structure of the locking portion 4 simple, and the locking and unlocking process of the locking portion 4 can be realized only by rotating the driving plate 3, without manual additional operations.
  • the specific structure of the limiting groove 91 and the slideway 92 is not limited.
  • the end of the limiting member 412 can be configured to have a V-shaped cross-section and protruding outward, and the limiting groove 91 can be provided It suffices that the groove wall of the V-shaped groove or the U-shaped groove has a smooth transition structure with the end surface of the limiting groove 91, and the slideway 92 may be a slide groove or a circular arc surface.
  • the structure of the limiting groove 91 can also be configured as a V-shaped groove.
  • the drive plate 3 drives the connecting piece 9 to rotate
  • the limiting member 412 will move away from the bottom of the groove along the wall of the V-shaped groove.
  • the stopper 412 will move along the groove wall of the V-shaped groove toward the bottom of the groove.
  • the stopper 412 is located at the bottom of the V-shaped groove, the two In other words, it is the mating state.
  • the drive plate 3 is in the original position, the lock block is matched with the outer gear ring, and the locking portion 4 is in the locked state.
  • the limiting member 412 is always located in the V-shaped groove.
  • the solution provided with the limit groove 91 and the slideway 92 can reduce the groove width and groove depth of the limit groove 91, simplify the overall structure, and reduce the processing requirements.
  • the lock spring 42 is a leaf spring sandwiched between the connecting piece 9 and the locking pawl 41, and the leaf spring is fixed to the locking pawl 41.
  • the lock spring 42 can also be set as a coil spring, and one end of the spiral lock spring 42 can be fixed between the rotation point 43 of the lock pawl 41 and the lock tooth 411, and the other end of the coil spring Abut the connecting piece 9 and can slide along the slideway 92, and setting the lock spring 42 as a leaf spring can reduce the space requirement of the lock spring 42.
  • the leaf spring is fixed and clamped with the lock pawl 41 The arrangement between the connecting piece 9 and the lock pawl 41 can make the installation of the lock spring 42 more stable.
  • the leaf spring is provided with a connecting hole 421, and the connecting hole 421 is sleeved on the outside of the rotation point 43. In this way, the leaf spring can rotate around the rotation point 43, which is more flexible and can prevent the leaf spring from being Deformation occurs after sliding along the slide 92 to ensure its service life.
  • the locking pawl 41 is equivalent to a rocker structure, and the distance between the rotation point 43 and the locking tooth 411 is greater than the distance between the rotation point 43 and the stopper 412, so that the rocker faces the locking tooth 411
  • the moment arm on the side of the stopper 412 is larger than the moment arm on the side facing the stopper 412.
  • the locking portion 4 includes two locking pawls 41, correspondingly, the number of the locking springs 42 is also two, the slideway 92 is provided with two limiting grooves 91, and the two locking pawls 41 are relative to the ratchet 5
  • the two locking pawls 41 are arranged roughly in a figure eight shape, and the limiting members 412 of the two locking pawls 41 are opposed to each other, that is, the limiting member 412 of one locking pawl 41
  • the limiting member 412 is located close to the other locking pawl 41.
  • the anti-creeping effect can also be achieved by only one set of locking pawls 41 and lock springs 42, and the two sets of locking pawls 41 and lock springs 42 can perform bidirectional anti-creeping on the height adjuster, as shown in the figure 3 and 4, the locking pawl 41 on the left is mainly used to restrict the counterclockwise creep of the car seat, and the locking pawl 41 on the right is mainly used to restrict the clockwise movement of the car seat Creeping, that is, the locking pawl 41 can restrict the rotation of the car seat from the locking tooth 411 to the side of the limiting member 412. Since the distance between the rotation point 43 and the locking tooth 411 is greater than the distance between the rotation point 43 and the limiting member 412, the two locking pawls 41 prevent the car seat from creeping, which is more reliable and stable. better.
  • the locking teeth 411 of one locking pawl 41 can also be arranged close to the locking teeth 411 of the other locking pawl 41, and the two locking pawls 41 can also prevent The clockwise and counterclockwise creep of the car seat. Specifically, it can be set according to the internal structure of the accommodating cavity and the structure of the connecting piece 9.
  • a protruding post 413 is provided above the locking pawl 41, and the fixing cover 2 is provided with a through hole or groove 22 that is adapted to the protruding post 413, and the protruding post 413 is located in the through hole or groove 22 and can be Rotate in the through hole or groove 22 to form the above-mentioned rotation point 43, or, in this embodiment, the lower surface of the fixed cover 2 can also be provided with a convex post 413, and the upper part of the locking pawl 41 is provided with the convex
  • the through hole or the groove 22 to which the post 413 is adapted can be used, that is, in this embodiment, the above-mentioned rotation point 43 is formed by the protruding post 413 and the through hole or groove 22, so that the locking pawl 41 is relative to the fixed cover 2 Rotate around the rotation point 43.
  • the connecting piece 9 is arranged on the side of the fixed cover 2 away from the driving board 3, the connecting piece 9 is arranged in the accommodating cavity, the driving board 3 is arranged outside the accommodating cavity, and the connecting piece 9 passes through the fixed cover
  • the center of 2 is fixed with the drive plate 3, so that the drive plate 3 is limited in the axial direction, so that the drive plate 3 can rotate relative to the fixed cover 2 without the two being separated.
  • the center of the fixed cover 2 is provided with a central hole, the central hole is coaxial with the rotation axis 11 of the drive plate 3, the connecting piece 9 is provided with a sleeve, and the sleeve passes through the central hole and is welded and fixed to the drive plate 3.
  • the connecting piece 9 can also be fixed to the side of the lower surface of the drive plate 3 away from the pawl 6, while the fixed cover 2 is provided with a central hole for the connecting piece 9 to pass through, and
  • the solution of arranging the connecting piece 9 to pass through the center of the fixed cover 2 and being fixed to the driving board 3 can simplify the overall structure, and at the same time, the connecting piece 9 can also axially limit the driving board 3.
  • the fixed cover 2 is provided with a special-shaped hole 21.
  • the outer edge of the special-shaped hole 21 is an arc-shaped side 211 on the side that opens toward the center of the fixed cover 2.
  • An extension hole 212 extending to the side away from the center of the fixed cover 2 is provided on both sides in the circumferential direction.
  • the first hinge point 62 passes through the special-shaped hole 21 and is hinged with the drive plate 3, and the pawl 6 is at the first hinge point 62.
  • a side boss 64 is provided on both sides.
  • the side boss 64 can close to the arc-shaped edge 211 and slide along the arc-shaped edge 221, so that the pawl 6 and the inner The ring gear 51 is disengaged.
  • the outer edge of the special-shaped hole 21 refers to the side of the hole on the side of the special-shaped hole 21 away from the center of the fixed cover 2.
  • the special-shaped hole 21 can be a fan-shaped hole or an arc-shaped hole. Specific restrictions.
  • the first hinge point 62 of the pawl 6 can move in the special-shaped hole 21 to realize the flexible hinge connection between it and the drive plate 3.
  • the side boss 64 can move in the special-shaped hole 21, and when the drive plate 3 rotates to the limit Position and in the process of returning to the original position, when the pawl 6 is driven to reverse, the pawl 6 first reverses around the second hinge point 63 so that the inter-engaging ratchet teeth 61 and the ring gear 51 are disengaged, and the pawl 6 is different
  • the ratchet tooth 61 on one side has a tendency to mesh with the ring gear 51, but the side boss 64 on the same side as the ratchet tooth 61 with the tendency to mesh will be in close contact with the arc-shaped side 211 and slide along the arc-shaped side 211 , To limit the rotation angle of the pawl 6 so as to prevent the other side of the ratchet tooth 61 of the pawl 6 from meshing with the ring gear 51.
  • the special-shaped hole 21 can also be understood as an arc-shaped hole or a fan-shaped hole provided in the fixed cover 2.
  • the side of the hole on the side of the arc-shaped hole or fan-shaped hole away from the center of the fixed cover 2 faces the center of the fixed cover 2.
  • One side protrudes to form the above-mentioned arc-shaped side 211, and portions on both sides of the arc-shaped side 211 in the circumferential direction form the above-mentioned extension hole 212.
  • the extension hole 212 not only extends to the side away from the center of the fixed cover 2, but also extends outward in the circumferential direction. In this way, it can provide enough for the rotation of the pawl 6 At the same time of space, the cross-sectional area of the special-shaped hole 21 can be reduced to ensure the strength of the fixed cover 2.
  • the blocking piece 7 is further provided with an elastic member 71 capable of providing axial supporting force.
  • the elastic member 71 can be configured as a coil spring or an elastic piece, which is not specifically limited herein.
  • the elastic member 71 can provide axial support for the blocking sheet 7 so that the lower surface of the blocking sheet 7 is close to the core member 8.
  • the middle of the ratchet 5 is provided with a connecting structure connected with other driving structures of the core member 8.
  • the top surface of the connecting structure is provided with an annular table surface, and the lower end surface of the blocking plate 7 is attached to the annular table surface.
  • the frictional resistance is generated during the rotation.
  • the lower end surface of the blocking plate 7 can also be contacted with other parts of the core member 8 to generate frictional resistance, which is not specifically limited here.
  • the elastic piece 71 may be arranged above the blocking piece 7, so that the upper end surface of the elastic piece 71 is in contact with the lower end surface of the fixing cover 2, and the lower end surface of the blocking piece 7 is in contact with the core piece 8, or the elastic piece 71 may also be Located below the blocking plate 7, the lower end surface of the elastic member 71 is in contact with the core piece 8, and the upper end surface of the blocking plate 7 is in contact with the lower end surface of the fixed cover 2.
  • the fixed cover 2 can face the blocking plate from above.
  • the elastic member 71 of 7 generates a pre-compression effect, so that the blocking piece 7 can be in a pre-compressed state between the fixed cover 2 and the core member 8 (ratchet wheel 5).
  • the blocking plate 7 can be provided with friction resistance from the upper and lower sides at the same time, so as to ensure that it has sufficient friction.
  • the arrangement of the elastic member 71 can also prevent the blocking plate 7 from being crushed and ensure its service life.
  • the first hinge point 62 of the pawl 6 is hinged with the drive plate 3, and there is no specific restriction on the structure of the hinge.
  • the drive plate 3 is provided with There is a driving hole, the pawl 6 is provided with a driving boss, and the driving boss passes through the special-shaped hole 21 and is located in the driving hole, so that the rotation of the driving plate 3 can drive the pawl 6 to rotate.
  • the drive plate 3 can also be provided with a drive boss, and the pawl 6 can be provided with a drive hole, so that the rotation of the drive plate 3 can drive the pawl 6 to rotate, and there is no specific limitation here.
  • the pawl 6 is hinged to the blocking plate 7 through the second hinge point 63.
  • the pawl 6 is provided with a hinge hole
  • the blocking plate 7 is provided with a hinge protrusion
  • the hinge hole is matched with the hinge protrusion to The hinged connection between the pawl 6 and the blocking plate 7 can be realized, or the pawl 6 may be provided with hinged protrusions, and the blocking plate 7 may be provided with hinged holes, and there is no specific limitation here.
  • the height adjuster further includes a baffle 12 fixed on the outer wall of the housing 1 and a torsion spring 10 sleeved on the housing 1.
  • the drive plate 3 is provided with a baffle 31, the baffle 12 and the baffle 31 are located between the two legs 101 of the torsion spring 10, the baffle 12 is fixed to the housing 1, and is used to limit the position of the torsion spring 10.
  • the leg 101 of the torsion spring 10 will be pushed
  • the torsion spring 10 is rotated and compressed, and when the force of the operating handle is withdrawn, the drive plate 3 will return to the original position under the action of the torsion spring 10.

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  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)
  • Seats For Vehicles (AREA)

Abstract

A vehicle seat and a height adjuster thereof, the height adjuster comprising a housing, a fixing cover, a driving portion, a locking portion and a core member which is provided with a ratchet. The driving portion comprises a driving board, a pawl and a blocking plate; the blocking plate is clamped between the fixing cover and the core member; ratchet teeth are provided on both sides of the pawl respectively, a first hinge joint of the pawl is hinged with the driving board, and a second hinge joint is hinged with the blocking plate; and the driving board can drive the pawl to rotate around the second hinge joint so that ratchet teeth on one side of the pawl are engaged with or separated from an internal ring gear of the ratchet. The locking portion comprises a lock spring and a lock claw; the lock claw is provided with lock teeth and is rotatingly connected to the fixing cover by means of a rotary point; the lock teeth can engage with the internal ring gear under the action of the lock spring; and the locking portion also comprises a connecting plate, the rotation of which may drive the lock claw to rotate around the rotary point so as to enable the lock teeth and the internal ring gear to engage with or separate from one another. The invention may prevent the height of a vehicle seat from changing during use due to the creeping of a core member, thus ensuring the comfort of the vehicle seat.

Description

一种汽车座椅及其高度调节器Automobile seat and height adjuster thereof
本申请要求于2019年8月30日提交中国专利局、申请号为201910816585.7、发明名称为“一种汽车座椅及其高度调节器”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。This application claims the priority of a Chinese patent application filed with the Chinese Patent Office on August 30, 2019, the application number is 201910816585.7, and the invention title is "a car seat and its height adjuster", the entire content of which is incorporated by reference In this application.
技术领域Technical field
本发明涉及车辆座椅技术领域，具体涉及一种汽车座椅及其高度调节器。The invention relates to the technical field of vehicle seats, in particular to a vehicle seat and a height adjuster thereof.
背景技术Background technique
汽车座椅可通过升降机构调节高度，以满足不同用户提供舒适的乘坐需求，升降机构包括高度调节器和汽车座椅齿板等部件，其中，高度调节器用于控制汽车座椅升降功能的实现和保持调整后的汽车座椅高度，该高度调节器由驱动部分和核心件两个部分组成。The height of the car seat can be adjusted through the lifting mechanism to meet the needs of different users to provide a comfortable ride. The lifting mechanism includes a height adjuster and a car seat tooth plate. Among them, the height adjuster is used to control the realization of the lifting function of the car seat. To maintain the height of the adjusted car seat, the height adjuster is composed of two parts: a driving part and a core part.
汽车座椅在使用过程中，核心件在受交变载荷的作用下可能会发生蠕动(缓慢转动)，核心件的蠕动最终会导致汽车座椅高度的变化，用户需在一段时间后需要重新调节汽车座椅的高度，以保证该汽车座椅的舒适性。During the use of the car seat, the core part may creep (slowly rotate) under the action of alternating loads. The creep of the core part will eventually cause the height of the car seat to change, and the user needs to re-adjust after a period of time. The height of the car seat to ensure the comfort of the car seat.
因此，如何防止在使用过程中由于核心件的蠕动使得汽车座椅的高度发生变化，保证汽车座椅的舒适性，是本领域技术人员所需要解决的技术问题。Therefore, how to prevent the height of the car seat from changing due to the peristaltic movement of the core component during use and ensure the comfort of the car seat is a technical problem that needs to be solved by those skilled in the art.
发明内容Summary of the invention
本发明的目的是提供一种汽车座椅及其高度调节器，可防止在使用过程中由于核心件的蠕动使得汽车座椅的高度发生变化，保证汽车座椅的舒适性。The object of the present invention is to provide a car seat and a height adjuster thereof, which can prevent the height of the car seat from changing due to the peristaltic movement of the core component during use, and ensure the comfort of the car seat.
为解决上述技术问题，本发明提供一种汽车座椅的高度调节器，其包括壳体、固定盖、驱动部、锁定部和设有棘轮的核心件，所述固定盖固设于所述壳体的顶端并围合形成容置腔，所述核心件和所述锁定部位于所述 容置腔内，所述棘轮设有内齿圈；所述驱动部包括与操作手柄连接的驱动板以及设于所述容置腔内的棘爪和阻滞片，所述驱动板、所述阻滞片和所述核心件同轴，所述驱动板与所述固定盖可旋转连接，所述阻滞片夹设于所述固定盖和所述核心件之间，所述棘爪的两侧分别设有棘齿，所述棘爪的第一铰接点与所述驱动板铰接，所述棘爪的第二铰接点与所述阻滞片铰接，所述驱动板的转动能够带动所述棘爪绕所述第二铰接点转动使得所述棘爪的一侧的所述棘齿与所述内齿圈啮合或脱离；所述锁定部包括锁簧和锁爪，所述锁爪设有锁齿并通过旋转点与所述固定盖可旋转连接，所述锁齿能够在所述锁簧的作用下与所述内齿圈啮合，所述容置腔内还设有与所述驱动板同步转动的连接片，所述连接片的转动能够作用于所述锁爪绕所述旋转点转动以使所述锁齿和所述内齿圈啮合或脱离。In order to solve the above technical problems, the present invention provides a height adjuster for a car seat, which includes a housing, a fixed cover, a driving part, a locking part, and a core part provided with a ratchet. The fixed cover is fixed on the housing. The top end of the body is enclosed to form an accommodating cavity, the core piece and the locking part are located in the accommodating cavity, the ratchet wheel is provided with an inner gear ring; the driving part includes a driving plate connected with the operating handle and The pawl and the blocking plate are arranged in the accommodating cavity, the driving plate, the blocking plate and the core are coaxial, the driving plate is rotatably connected with the fixed cover, and the blocking plate is rotatably connected to the fixed cover. The stagnation piece is sandwiched between the fixed cover and the core piece, ratchet teeth are respectively provided on both sides of the pawl, the first hinge point of the pawl is hinged with the drive plate, and the pawl The second hinge point is hinged to the blocking plate, and the rotation of the drive plate can drive the pawl to rotate around the second hinge point so that the ratchet tooth on one side of the pawl and the inner The gear ring is engaged or disengaged; the locking portion includes a lock spring and a lock pawl, the lock pawl is provided with a lock tooth and is rotatably connected with the fixed cover through a rotation point, and the lock tooth can act on the lock spring The lower part is engaged with the inner gear ring, and the receiving cavity is also provided with a connecting piece that rotates synchronously with the driving plate. The rotation of the connecting piece can act on the rotation of the lock pawl around the rotation point to make The lock tooth engages or disengages from the inner gear ring.
锁簧能够提供弹性力并作用于锁爪使得锁爪的锁齿与棘轮的内齿圈啮合，因此，当通过该高度调节器调节汽车座椅的高度至适当位置后，驱动板回至原位，连接片回至原位，此时，锁齿在锁簧的作用下与内齿圈啮合，当该高度调节器的核心件由于受到交变载荷的影响而发生转动时，会带动棘轮转动，而棘轮的转动被锁爪传递至固定盖，由于固定盖与壳体固定而不会发生转动，因此约束了棘轮的转动，从而限制了核心件以及汽车座椅的转动，达到防蠕动的效果，进而可防止座椅下沉。The lock spring can provide elastic force and act on the lock pawl so that the lock tooth of the lock pawl meshes with the inner gear ring of the ratchet. Therefore, when the height of the car seat is adjusted to a proper position by the height adjuster, the drive plate returns to the original position , The connecting piece returns to the original position. At this time, the lock tooth meshes with the inner gear ring under the action of the lock spring. When the core part of the height adjuster rotates due to the influence of the alternating load, it will drive the ratchet wheel to rotate. The rotation of the ratchet wheel is transmitted to the fixed cover by the lock pawl. Since the fixed cover is fixed with the housing and does not rotate, the rotation of the ratchet wheel is restricted, thereby limiting the rotation of the core parts and the car seat, and achieving the effect of anti-creeping. In turn, the seat can be prevented from sinking.
当需要对汽车座椅的高度进行调节时，驱动板在操作手柄的带动下转动，并通过连接片作用于锁爪使得锁爪绕旋转点转动，并使锁齿与内齿圈脱离，此时，锁定部处于解锁状态，可通过操作手柄(驱动板)的转动调节该汽车座椅的高度，位置调节好后，操作手柄(驱动板)回至原位，锁齿重新与内齿圈啮合以实现锁定，防止在使用过程中汽车座椅的高度发生变化。When the height of the car seat needs to be adjusted, the drive plate rotates under the drive of the operating handle, and acts on the lock pawl through the connecting piece to make the lock pawl rotate around the rotation point and separate the lock tooth from the inner gear ring. , The locking part is in the unlocked state, and the height of the car seat can be adjusted by turning the operating handle (drive plate). After the position is adjusted, the operating handle (drive plate) returns to the original position, and the locking teeth re-engages with the inner gear ring. It can be locked to prevent the height of the car seat from changing during use.
该高度调节器，能够实现对汽车座椅的高度位置进行双向驱动调节，同时，锁定部结构简单，可实现在使用过程中，对于核心件的蠕动进行限制，以使汽车座椅能够保持较为舒适的高度，进而保证汽车座椅的舒适性。The height adjuster can realize two-way drive adjustment of the height position of the car seat. At the same time, the locking part has a simple structure, which can limit the peristaltic movement of the core during use, so that the car seat can remain more comfortable The height of the car seat ensures the comfort of the car seat.
可选地，所述连接片设有滑道和开设于所述滑道的限位槽，所述锁爪还包括限位件，所述限位件和所述锁齿分别位于所述旋转点的两侧，所述限位件与所述限位槽配合时，所述锁齿与所述内齿圈啮合，所述限位件沿 所述滑道滑动时，所述锁齿与所述内齿圈脱离；所述连接片的转动能够使所述限位件沿所述限位槽的内壁滑动至所述滑道并沿所述滑道滑动。Optionally, the connecting piece is provided with a slideway and a limiting groove opened in the slideway, the locking pawl further includes a limiting member, and the limiting member and the locking tooth are respectively located at the rotation point When the limiting member is matched with the limiting groove, the locking tooth meshes with the inner gear ring, and when the limiting member slides along the slideway, the locking tooth and the The inner gear ring is disengaged; the rotation of the connecting piece can make the stopper slide along the inner wall of the stop groove to the slideway and slide along the slideway.
可选地，所述锁簧为夹设于所述连接片和所述锁爪之间的片弹簧，所述片弹簧与所述锁爪固定。Optionally, the lock spring is a leaf spring sandwiched between the connecting piece and the locking pawl, and the leaf spring is fixed to the locking pawl.
可选地，所述片弹簧设有连接孔，所述连接孔套设于所述旋转点的外侧并可绕所述旋转点转动。Optionally, the leaf spring is provided with a connecting hole, and the connecting hole is sleeved on the outside of the rotation point and can rotate around the rotation point.
可选地，所述旋转点与所述锁齿之间的距离大于所述旋转点与所述限位件之间的距离。Optionally, the distance between the rotation point and the locking tooth is greater than the distance between the rotation point and the limiting member.
可选地，所述锁定部包括两个所述锁爪，且两个所述锁爪关于所述棘轮的径向对称设置。Optionally, the locking portion includes two locking pawls, and the two locking pawls are arranged symmetrically with respect to the radial direction of the ratchet wheel.
可选地，所述锁爪的上端面和所述固定盖的下端面中，一者设有凸柱，另一者设有与所述凸柱相适配的通孔或凹槽，所述凸柱位于所述通孔或凹槽内并可相对于所述通孔或凹槽转动，以形成所述旋转点。Optionally, one of the upper end surface of the locking pawl and the lower end surface of the fixing cover is provided with a protruding column, and the other is provided with a through hole or a groove adapted to the protruding column. The boss is located in the through hole or the groove and can rotate relative to the through hole or the groove to form the rotation point.
可选地，所述固定盖设有异形孔，所述异形孔的外缘边为开口朝向所述固定盖的中心的弧形边，所述弧形边的周向两侧设置有向所述固定盖的中心的一侧延伸的延伸孔；所述第一铰接点穿过所述异形孔并与所述驱动板铰接，且所述棘爪在所述第一铰接点的两侧分别设有一个侧凸台，所述驱动板在回至原位过程中，所述侧凸台能够贴紧所述弧形边并沿所述弧形边滑动，以使所述棘齿与所述内齿圈脱离。Optionally, the fixed cover is provided with a special-shaped hole, the outer edge of the special-shaped hole is an arc-shaped side with an opening toward the center of the fixed cover, and both circumferential sides of the arc-shaped side are provided with An extension hole extending from one side of the center of the fixed cover; the first hinge point passes through the special-shaped hole and is hinged with the drive plate, and the pawls are respectively provided on both sides of the first hinge point A side boss, in the process of returning the drive plate to the original position, the side boss can abut the arc edge and slide along the arc edge, so that the ratchet tooth and the inner tooth The circle breaks away.
可选地，所述阻滞片还设有能够提供轴向支撑力的弹性件。Optionally, the blocking plate is further provided with an elastic member capable of providing axial supporting force.
另外，本发明还提供了一种汽车座椅，其包括如上所述的高度调节器。In addition, the present invention also provides a car seat, which includes the height adjuster as described above.
具有如上所述的高度调节器的汽车座椅，其技术效果与上述高度调节器的技术效果类似，为节约篇幅，在此不再赘述。The technical effect of the car seat with the above-mentioned height adjuster is similar to that of the above-mentioned height adjuster. In order to save space, it will not be repeated here.
附图说明Description of the drawings
图1是本发明实施例所提供的汽车座椅的高度调节器的结构示意图；Fig. 1 is a schematic structural diagram of a height adjuster for a car seat provided by an embodiment of the present invention;
图2是图1的***图；Figure 2 is an exploded view of Figure 1;
图3是锁定部处于锁定状态的结构示意图；Figure 3 is a schematic structural view of the locking part in a locked state;
图4是锁定部处于解锁状态的结构示意图；Figure 4 is a schematic structural diagram of the locking part in an unlocked state;
图5是锁定部的***图；Figure 5 is an exploded view of the locking part;
图6是棘爪的结构示意图；Figure 6 is a schematic diagram of the structure of the pawl;
图7是固定盖的结构示意图。Fig. 7 is a schematic diagram of the structure of the fixed cover.
附图1-7中，附图标记说明如下：In Figures 1-7, the reference signs are described as follows:
1-壳体；1-shell;
2-固定盖，21-异形孔，211-弧形边，212-延伸孔，22-通孔或凹槽；2-Fixed cover, 21-shaped hole, 211-curved side, 212-extended hole, 22-through hole or groove;
3-驱动板，31-挡板；3-drive board, 31-baffle;
4-锁定部，41-锁爪，411-锁齿，412-限位件，413-凸柱，42-锁簧，421-连接孔，43-旋转点；4-locking part, 41-locking claw, 411-locking tooth, 412-limiting piece, 413-convex post, 42-locking spring, 421-connection hole, 43-rotation point;
5-棘轮，51-内齿圈；5-ratchet, 51-inner gear ring;
6-棘爪，61-棘齿，62-第一铰接点，63-第二铰接点，64-侧凸台；6-Pawl, 61-ratchet, 62-first hinge point, 63-second hinge point, 64-side boss;
7-阻滞片，71-弹性件；7-blocking piece, 71-elastic piece;
8-核心件；8-core parts;
9-连接片，91-限位槽，92-滑道；9-connecting piece, 91-limit slot, 92-slide;
10-扭簧，101-支腿；10- torsion spring, 101- outrigger;
11-转轴；11- shaft;
12-挡片。12-Baffle piece.
具体实施方式detailed description
为了使本领域的技术人员更好地理解本发明的技术方案，下面结合附图和具体实施例对本发明作进一步的详细说明。In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
请参考图1-7，图1是本发明实施例所提供的汽车座椅的高度调节器的结构示意图；图2是图1的***图；图3是锁定部处于锁定状态的结构示意图；图4是锁定部处于解锁状态的结构示意图；图5是锁定部的***图；图6是棘爪的结构示意图；图7是固定盖的结构示意图。Please refer to Figures 1-7. Figure 1 is a schematic structural diagram of a height adjuster for a car seat provided by an embodiment of the present invention; Figure 2 is an exploded view of Figure 1; Figure 3 is a structural schematic diagram of the locking portion in a locked state; 4 is a schematic structural diagram of the locking part in an unlocked state; FIG. 5 is an exploded view of the locking part; FIG. 6 is a schematic structural diagram of a pawl; FIG. 7 is a structural schematic diagram of a fixed cover.
本发明实施例提供了一种汽车座椅及其高度调节器，其中，汽车座椅包括上述高度调节器，高度调节器用于调节汽车座椅的高度，以使汽车座椅能够满足用户的高度需求，提高用户的舒适性。The embodiment of the present invention provides a car seat and a height adjuster thereof, wherein the car seat includes the above-mentioned height adjuster, and the height adjuster is used to adjust the height of the car seat so that the car seat can meet the height requirements of the user , Improve user comfort.
具体的，高度调节器包括壳体1、固定盖2、驱动部、锁定部4和核心件8，其中，固定盖2固设于壳体1的顶端并且二者围合形成一个容置腔，核心件8和锁定部4均位于该容置腔内，并且核心件8设有棘轮5，棘轮5设有内齿圈51。Specifically, the height adjuster includes a housing 1, a fixed cover 2, a driving part, a locking part 4, and a core part 8. The fixed cover 2 is fixed on the top of the housing 1 and the two surround them to form an accommodating cavity. The core piece 8 and the locking portion 4 are both located in the accommodating cavity, and the core piece 8 is provided with a ratchet wheel 5, and the ratchet wheel 5 is provided with an inner gear ring 51.
驱动部包括驱动板3和设于容置腔内的棘爪6和阻滞片7，其中，驱动板3、阻滞片7和核心件8同轴设置。具体的，驱动板3与固定盖2可旋转连接，阻滞片7夹设于固定盖2和核心件8之间，棘爪6的两侧分别设有与内齿圈51相适配的棘齿61，棘爪6包括第一铰接点62和第二铰接点63，其中第一铰接点62与驱动板3铰接，第二铰接点63与阻滞片7铰接。The driving part includes a driving plate 3, a pawl 6 and a blocking piece 7 arranged in the accommodating cavity, wherein the driving plate 3, the blocking piece 7 and the core piece 8 are coaxially arranged. Specifically, the drive plate 3 and the fixed cover 2 are rotatably connected, the blocking piece 7 is sandwiched between the fixed cover 2 and the core part 8, and both sides of the pawl 6 are respectively provided with ratchets adapted to the inner ring gear 51 The tooth 61 and the pawl 6 include a first hinge point 62 and a second hinge point 63, wherein the first hinge point 62 is hinged to the drive plate 3, and the second hinge point 63 is hinged to the blocking plate 7.
详细的讲，棘爪6的第一铰接点62和第二铰接点63不同轴设置，并且第二铰接点63与阻滞片7的转动轴线(即驱动板3、固定盖2、阻滞片7和核心件8的轴线)不同轴，使得与第一铰接点62铰接的驱动板3在转动时能够带动棘爪6转动。In detail, the first hinge point 62 and the second hinge point 63 of the pawl 6 are arranged on different axes, and the second hinge point 63 is connected to the rotation axis of the blocking plate 7 (that is, the drive plate 3, the fixed cover 2, the blocking The axis of the sheet 7 and the core member 8 are different, so that the drive plate 3 hinged to the first hinge point 62 can drive the pawl 6 to rotate when it rotates.
阻滞片7夹设于固定盖2和核心件8之间，在驱动板3带动棘轮5转动时，该棘轮5能够通过第二铰接点63带动阻滞片7使其产生转动的趋势，而由于阻滞片7夹紧于固定盖2和核心件8之间，使得阻滞片7在相对于核心件8和固定盖2转动时，由于摩擦阻力的作用将使其转动受阻。因此，驱动板3在操作手柄的作用下转动时，能够通过第一铰接点62带动棘爪6转动，由于阻滞片7的阻滞作用(摩擦阻力)使得棘爪6绕第二铰接点63转动，进而使得棘爪6的一侧的棘齿61与内齿圈51啮合，而当操作手柄回位时，驱动板3反向转动并回位(即反向转动至初始位置，驱动板3相对于壳体1的转动区间的中间位置)，此时驱动板3的反向转动将带动棘爪6绕第二铰接点63反向转动直至其棘齿61与内齿圈51脱离。The blocking plate 7 is sandwiched between the fixed cover 2 and the core member 8. When the drive plate 3 drives the ratchet wheel 5 to rotate, the ratchet wheel 5 can drive the blocking plate 7 through the second hinge point 63 to generate a tendency to rotate, and Since the blocking piece 7 is clamped between the fixed cover 2 and the core piece 8, when the blocking piece 7 rotates relative to the core piece 8 and the fixed cover 2, the rotation of the blocking piece 7 will be blocked due to frictional resistance. Therefore, when the drive plate 3 is rotated under the action of the operating handle, the pawl 6 can be driven to rotate through the first hinge point 62, and the blocking effect (frictional resistance) of the blocking plate 7 causes the pawl 6 to rotate around the second hinge point 63. Rotation, so that the ratchet tooth 61 on one side of the pawl 6 meshes with the ring gear 51, and when the operating handle returns to the position, the drive plate 3 reversely rotates and returns (that is, reverse rotation to the initial position, the drive plate 3 Relative to the middle position of the rotation interval of the housing 1), the reverse rotation of the drive plate 3 at this time will drive the pawl 6 to rotate in the reverse direction around the second hinge point 63 until the ratchet tooth 61 is separated from the ring gear 51.
棘爪6的两侧分别设有棘齿61，也就是说，驱动板3在操作手柄的作用下会向正反两个方向转动，而驱动板3的两个方向的转动均可带动棘轮5绕第二铰接点63转动至棘齿61与内齿圈51啮合，如此一来即可实现该高度调节器的双向驱动。当然，本实施例中，棘爪6两侧的棘齿61中，在同一时刻，最多仅有一侧的棘齿61能够与内齿圈51啮合。Both sides of the pawl 6 are respectively provided with ratchet teeth 61, that is to say, the drive plate 3 will rotate in both directions under the action of the operating handle, and the rotation of the drive plate 3 in both directions can drive the ratchet wheel 5 Rotate around the second hinge point 63 until the ratchet tooth 61 engages with the ring gear 51, so that the bidirectional drive of the height adjuster can be realized. Of course, in this embodiment, among the ratchet teeth 61 on both sides of the pawl 6, at most only one ratchet tooth 61 can mesh with the ring gear 51 at the same time.
锁定部4包括锁簧42和锁爪41，其中，锁爪41设有锁齿411并通过 旋转点43与固定盖2可旋转连接，其中，该旋转点43和固定盖2的轴线不同轴，也就是说，锁爪41仅可相对于固定盖2绕旋转点43转动，二者之间通过旋转点43的限制而不会发生锁爪41绕固定盖2的轴线转动，锁齿411能够在锁簧42的作用下与内齿圈51啮合以限制棘轮5的转动，容置腔内还设有与驱动板3同步转动的连接片9，该连接片9的转动能够作用于锁爪41绕旋转点43转动以使锁齿411和内齿圈51啮合或脱离。The locking portion 4 includes a lock spring 42 and a lock pawl 41, wherein the lock pawl 41 is provided with a lock tooth 411 and is rotatably connected with the fixed cover 2 through a rotation point 43, wherein the rotation point 43 and the axis of the fixed cover 2 are not axially That is to say, the locking pawl 41 can only rotate about the rotation point 43 relative to the fixed cover 2, and the two are restricted by the rotation point 43 without the locking pawl 41 rotating around the axis of the fixed cover 2, and the locking teeth 411 can Under the action of the lock spring 42, it meshes with the inner gear ring 51 to limit the rotation of the ratchet wheel 5. The accommodating cavity is also provided with a connecting piece 9 that rotates synchronously with the drive plate 3, and the rotation of the connecting piece 9 can act on the lock pawl 41 Rotate around the rotation point 43 to engage or disengage the locking tooth 411 and the ring gear 51.
详细的讲，锁簧42能够提供弹性力并作用于锁爪41使得锁爪41的锁齿411与棘轮5的内齿圈51啮合，因此，当通过该高度调节器调节汽车座椅的高度至适当位置后，驱动板3回至原位，连接片9回至原位，此时，锁齿411在锁簧42的作用下与内齿圈51啮合，当该高度调节器的核心件8由于受到交变载荷的影响而发生转动时，会带动棘轮5转动，而棘轮5的转动被锁爪41传递至固定盖2，由于固定盖2与壳体1固定而不会发生转动，因此约束了棘轮5的转动，从而限制了核心件8以及汽车座椅的转动，达到防蠕动的效果，进而可防止座椅下沉。In detail, the lock spring 42 can provide elastic force and act on the lock pawl 41 so that the lock tooth 411 of the lock pawl 41 meshes with the inner gear ring 51 of the ratchet wheel 5. Therefore, when the height of the car seat is adjusted to After the proper position, the drive plate 3 returns to the original position, and the connecting piece 9 returns to the original position. At this time, the lock tooth 411 is engaged with the inner gear ring 51 under the action of the lock spring 42. When the core part 8 of the height adjuster is caused by When it rotates under the influence of the alternating load, it will drive the ratchet wheel 5 to rotate, and the rotation of the ratchet wheel 5 is transmitted to the fixed cover 2 by the lock pawl 41. Since the fixed cover 2 is fixed to the housing 1 and does not rotate, it restricts The rotation of the ratchet wheel 5 limits the rotation of the core 8 and the car seat to achieve an anti-creeping effect, thereby preventing the seat from sinking.
当需要对汽车座椅的高度进行调节时，驱动板3在操作手柄的带动下转动，并通过连接片9作用于锁爪41使得锁爪41绕旋转点43转动，并使锁齿411与内齿圈51脱离，此时，锁定部4处于解锁状态，可通过操作手柄(驱动板3)的转动调节该汽车座椅的高度，位置调节好后，操作手柄(驱动板3)回至原位，锁齿411重新与内齿圈51啮合以实现锁定，防止在使用过程中汽车座椅的高度发生变化。When the height of the car seat needs to be adjusted, the drive plate 3 rotates under the drive of the operating handle, and acts on the lock pawl 41 through the connecting piece 9 so that the lock pawl 41 rotates around the rotation point 43 and causes the lock tooth 411 to interact with the inner The gear ring 51 is disengaged. At this time, the locking part 4 is in an unlocked state. The height of the car seat can be adjusted by turning the operating handle (drive plate 3). After the position is adjusted, the operating handle (drive plate 3) returns to its original position. , The locking teeth 411 re-engage with the inner ring gear 51 to achieve locking, and prevent the height of the car seat from changing during use.
本实施例中的高度调节器，能够实现对汽车座椅的高度位置进行双向驱动调节，同时，锁定部4结构简单，可实现在使用过程中，对于核心件8的蠕动进行限制，以使汽车座椅能够保持较为舒适的高度，进而保证汽车座椅的舒适性。The height adjuster in this embodiment can realize the bidirectional driving adjustment of the height position of the car seat. At the same time, the locking part 4 has a simple structure, which can limit the peristaltic movement of the core member 8 during use, so that the car The seat can maintain a relatively comfortable height, thereby ensuring the comfort of the car seat.
另外，本实施例中，核心件8设有转轴11，阻滞片7、固定盖2和驱动板3依次套接于转轴11上，以实现核心件8、阻滞片7、固定盖2和驱动板3之间的同轴设置，当然，本实施例中，还可以将转轴11设于阻滞片7、固定盖2和驱动板3中的任意一者均可。In addition, in this embodiment, the core piece 8 is provided with a rotating shaft 11, and the blocking piece 7, the fixed cover 2 and the drive plate 3 are sequentially sleeved on the rotating shaft 11 to realize the core piece 8, the blocking piece 7, the fixed cover 2 and The coaxial arrangement between the drive plates 3, of course, in this embodiment, the rotating shaft 11 can also be provided on any one of the blocking plate 7, the fixed cover 2 and the drive plate 3.
在上述实施例中，连接片9设有滑道92和开设于滑道92的限位槽91，锁爪41包括与限位槽91相适配的限位件412，当限位件412与限位槽91 配合时，锁齿411与内齿圈51啮合，锁定部4锁定，棘轮5的转动受限，而当限位件412沿滑道92滑动时，锁齿411与内齿圈51脱离，锁定部4解锁，棘轮5的转动不再受限。In the above embodiment, the connecting piece 9 is provided with a slideway 92 and a limiting groove 91 opened in the slideway 92, and the locking pawl 41 includes a limiting member 412 that is adapted to the limiting groove 91. When the limiting member 412 is connected to the limiting groove 91, When the limiting groove 91 is engaged, the locking tooth 411 engages with the ring gear 51, the locking portion 4 is locked, and the rotation of the ratchet wheel 5 is restricted. When the limiting member 412 slides along the slide 92, the locking tooth 411 and the ring gear 51 Disengaged, the locking part 4 is unlocked, and the rotation of the ratchet wheel 5 is no longer restricted.
详细的讲，限位件412和锁齿411分别位于旋转点43的两侧，并且该锁爪41可绕旋转点43转动，因此，锁爪41相当于一个翘板的结构，旋转点43为该翘板的支点，锁簧42的弹力作用能够使得锁齿411与内齿圈51啮合，并使得限位件412贴紧朝向滑道92和限位槽91的一侧，而当驱动板3在操作手柄的作用下转动时，能够带动连接片9转动，使得限位件412压紧锁簧42并在锁簧42的弹力作用下贴紧限位槽91的槽壁并沿槽壁滑动至滑道92后沿滑道92滑动，而在限位件412沿槽壁滑出限位槽91的过程中，锁爪41绕旋转点43转动并使得锁齿411与内齿圈51逐渐脱离，直至锁定部4达到解锁状态(如图4所示)；当驱动板3反向转动时，连接片9反向转动，使得限位件412沿滑道92反向移动至限位槽91内时，锁爪41再次绕旋转点43反向转动并在驱动板3和连接片9转至原位时，限位件412与限位槽91配合，锁齿411与内齿圈51啮合，即该锁定部4达到锁定状态(如图3所示)。In detail, the stopper 412 and the locking tooth 411 are respectively located on both sides of the rotation point 43, and the locking pawl 41 can rotate around the rotation point 43. Therefore, the locking pawl 41 is equivalent to a rocker structure, and the rotation point 43 is The fulcrum of the rocker, the elastic action of the lock spring 42 can make the lock tooth 411 mesh with the inner ring gear 51, and make the limiting member 412 close to the side facing the slide 92 and the limiting groove 91, and when the drive plate 3 When rotated under the action of the operating handle, the connecting piece 9 can be driven to rotate, so that the limiting member 412 presses the lock spring 42 and presses against the wall of the limiting groove 91 under the elastic force of the lock spring 42 and slides along the groove wall to The slideway 92 slides along the slideway 92, and when the limiting member 412 slides out of the limiting groove 91 along the groove wall, the locking pawl 41 rotates around the rotation point 43 and gradually separates the locking tooth 411 from the ring gear 51. Until the locking portion 4 reaches the unlocked state (as shown in Figure 4); when the drive plate 3 rotates in the reverse direction, the connecting piece 9 rotates in the reverse direction, so that the limiting member 412 moves in the reverse direction along the slide 92 into the limiting slot 91 , The locking pawl 41 rotates in the opposite direction around the rotation point 43 again and when the drive plate 3 and the connecting piece 9 are rotated to the original position, the limiting member 412 is engaged with the limiting groove 91, and the locking tooth 411 meshes with the inner gear ring 51, that is, the The locking part 4 reaches the locked state (as shown in FIG. 3).
如此设置可使得该锁定部4的整体结构简单，仅需通过旋转驱动板3即可实现该锁定部4的锁定和解锁过程，无需人工进行额外的操作。Such an arrangement can make the overall structure of the locking portion 4 simple, and the locking and unlocking process of the locking portion 4 can be realized only by rotating the driving plate 3, without manual additional operations.
本实施例中，对于限位槽91和滑道92的具体结构不做限制，如可将限位件412的端部设置为截面呈V型并向外突出的结构，将限位槽91设置为V型槽或U型槽等槽壁与限位槽91的端面呈平滑过渡的结构即可，滑道92可以是滑槽也可以是圆弧面均可。In this embodiment, the specific structure of the limiting groove 91 and the slideway 92 is not limited. For example, the end of the limiting member 412 can be configured to have a V-shaped cross-section and protruding outward, and the limiting groove 91 can be provided It suffices that the groove wall of the V-shaped groove or the U-shaped groove has a smooth transition structure with the end surface of the limiting groove 91, and the slideway 92 may be a slide groove or a circular arc surface.
或者，本实施例中，还可以将限位槽91的结构设置为V型槽，当驱动板3带动连接片9转动时，限位件412将沿着V型槽的槽壁向远离槽底的方向移动，而当驱动板3反向转动时，限位件412将沿着V型槽的槽壁向槽底的方向移动，当限位件412位于V型槽的槽底时，二者即为配合状态，此时驱动板3处于原位，锁块与外齿圈配合，锁定部4处于锁定状态。此种结构设置下，限位件412始终位于V型槽内。而设有限位槽91和滑道92的方案可减小该限位槽91的槽宽和槽深，简化整体结构、降低加工要求。Alternatively, in this embodiment, the structure of the limiting groove 91 can also be configured as a V-shaped groove. When the drive plate 3 drives the connecting piece 9 to rotate, the limiting member 412 will move away from the bottom of the groove along the wall of the V-shaped groove. When the drive plate 3 rotates in the reverse direction, the stopper 412 will move along the groove wall of the V-shaped groove toward the bottom of the groove. When the stopper 412 is located at the bottom of the V-shaped groove, the two In other words, it is the mating state. At this time, the drive plate 3 is in the original position, the lock block is matched with the outer gear ring, and the locking portion 4 is in the locked state. With this structure arrangement, the limiting member 412 is always located in the V-shaped groove. The solution provided with the limit groove 91 and the slideway 92 can reduce the groove width and groove depth of the limit groove 91, simplify the overall structure, and reduce the processing requirements.
在上述实施例中，锁簧42为夹设于连接片9和锁爪41之间的片弹簧，片弹簧与锁爪41固定。或者，本实施例中，还可以将锁簧42设置为螺旋弹簧，并将该螺旋锁簧42的一端固定于锁爪41的旋转点43和锁齿411之间，并将螺旋弹簧的另一端与连接片9抵接，并可沿滑道92滑动即可，而将锁簧42设置为片弹簧可减小该锁簧42对布置空间的要求，同时，片弹簧与锁爪41固定并夹设于连接片9和锁爪41之间，可使得该锁簧42的安装更稳定。In the above embodiment, the lock spring 42 is a leaf spring sandwiched between the connecting piece 9 and the locking pawl 41, and the leaf spring is fixed to the locking pawl 41. Alternatively, in this embodiment, the lock spring 42 can also be set as a coil spring, and one end of the spiral lock spring 42 can be fixed between the rotation point 43 of the lock pawl 41 and the lock tooth 411, and the other end of the coil spring Abut the connecting piece 9 and can slide along the slideway 92, and setting the lock spring 42 as a leaf spring can reduce the space requirement of the lock spring 42. At the same time, the leaf spring is fixed and clamped with the lock pawl 41 The arrangement between the connecting piece 9 and the lock pawl 41 can make the installation of the lock spring 42 more stable.
在上述实施例中，片弹簧设有连接孔421，连接孔421套设于旋转点43的外侧，如此一来，该片弹簧能够绕旋转点43转动，更为灵活，可避免该片弹簧在沿滑道92滑动后发生变形的情况，保证其使用寿命。In the above embodiment, the leaf spring is provided with a connecting hole 421, and the connecting hole 421 is sleeved on the outside of the rotation point 43. In this way, the leaf spring can rotate around the rotation point 43, which is more flexible and can prevent the leaf spring from being Deformation occurs after sliding along the slide 92 to ensure its service life.
在上述实施例中，锁爪41相当于一个翘板的结构，旋转点43与锁齿411之间的距离大于旋转点43与限位件412之间的距离，使得该翘板朝向锁齿411的一侧的力臂大于朝向限位件412一侧的力臂，如此一来，限位件412在沿限位槽91的槽壁滑动较小的距离后，锁齿411即可转动较大的距离，即驱动板3带动连接片9转动较小的距离即可使得锁定部4解锁，解锁灵敏性更好。In the above embodiment, the locking pawl 41 is equivalent to a rocker structure, and the distance between the rotation point 43 and the locking tooth 411 is greater than the distance between the rotation point 43 and the stopper 412, so that the rocker faces the locking tooth 411 The moment arm on the side of the stopper 412 is larger than the moment arm on the side facing the stopper 412. As a result, after the stopper 412 slides along the wall of the stopper groove 91 for a smaller distance, the locking tooth 411 can rotate more. That is, the driving board 3 drives the connecting piece 9 to rotate a small distance to unlock the locking portion 4, and the unlocking sensitivity is better.
在上述实施例中，锁定部4包括两个锁爪41，相应的，锁簧42的数量也为两个，滑道92设有两个限位槽91，且两个锁爪41关于棘轮5的径向对称设置，如图3和图4所示，两个锁爪41大致呈八字形设置，并且，两个锁爪41的限位件412相对，即一个锁爪41的限位件412靠近另一个锁爪41的限位件412设置。In the above embodiment, the locking portion 4 includes two locking pawls 41, correspondingly, the number of the locking springs 42 is also two, the slideway 92 is provided with two limiting grooves 91, and the two locking pawls 41 are relative to the ratchet 5 As shown in Figures 3 and 4, the two locking pawls 41 are arranged roughly in a figure eight shape, and the limiting members 412 of the two locking pawls 41 are opposed to each other, that is, the limiting member 412 of one locking pawl 41 The limiting member 412 is located close to the other locking pawl 41.
当然，在本实施例中，还可以仅通过一组锁爪41和锁簧42实现防蠕动的效果，而两组锁爪41和锁簧42可对该高度调节器进行双向防蠕动，如图3和图4所示，设于左侧的锁爪41主要用于限制汽车座椅的逆时针方向的蠕动，而设于右侧的锁爪41主要用于限制汽车座椅的顺时针方向的蠕动，即锁爪41能够限制汽车座椅由锁齿411向限位件412一侧的方向的转动。由于旋转点43与锁齿411之间的距离大于旋转点43和限位件412之间的距离，因此，通过两个锁爪41防止汽车座椅发生蠕动，更为可靠、汽车座椅稳定性更好。Of course, in this embodiment, the anti-creeping effect can also be achieved by only one set of locking pawls 41 and lock springs 42, and the two sets of locking pawls 41 and lock springs 42 can perform bidirectional anti-creeping on the height adjuster, as shown in the figure 3 and 4, the locking pawl 41 on the left is mainly used to restrict the counterclockwise creep of the car seat, and the locking pawl 41 on the right is mainly used to restrict the clockwise movement of the car seat Creeping, that is, the locking pawl 41 can restrict the rotation of the car seat from the locking tooth 411 to the side of the limiting member 412. Since the distance between the rotation point 43 and the locking tooth 411 is greater than the distance between the rotation point 43 and the limiting member 412, the two locking pawls 41 prevent the car seat from creeping, which is more reliable and stable. better.
或者，本实施例中，两个锁爪41大致呈八字形设置时，还可以将一个 锁爪41的锁齿411靠近另一个锁爪41的锁齿411设置，两个锁爪41同样可以防止汽车座椅的顺时针蠕动和逆时针蠕动。具体可根据容置腔的内部结构和连接片9的结构进行设置。Or, in this embodiment, when the two locking pawls 41 are arranged roughly in a figure eight shape, the locking teeth 411 of one locking pawl 41 can also be arranged close to the locking teeth 411 of the other locking pawl 41, and the two locking pawls 41 can also prevent The clockwise and counterclockwise creep of the car seat. Specifically, it can be set according to the internal structure of the accommodating cavity and the structure of the connecting piece 9.
在上述实施例中，锁爪41的上方设有凸柱413，固定盖2设有与凸柱413相适配的通孔或凹槽22，凸柱413位于通孔或凹槽22内并可在该通孔或凹槽22内转动，以形成上述旋转点43，或者，本实施例中，还可以将固定盖2的下表面设有凸柱413，锁爪41的上方设有与该凸柱413相适配的通孔或凹槽22均可，也就是说，本实施例中是通过凸柱413和通孔或凹槽22形成上述旋转点43，以使锁爪41相对于固定盖2绕旋转点43转动。In the above embodiment, a protruding post 413 is provided above the locking pawl 41, and the fixing cover 2 is provided with a through hole or groove 22 that is adapted to the protruding post 413, and the protruding post 413 is located in the through hole or groove 22 and can be Rotate in the through hole or groove 22 to form the above-mentioned rotation point 43, or, in this embodiment, the lower surface of the fixed cover 2 can also be provided with a convex post 413, and the upper part of the locking pawl 41 is provided with the convex The through hole or the groove 22 to which the post 413 is adapted can be used, that is, in this embodiment, the above-mentioned rotation point 43 is formed by the protruding post 413 and the through hole or groove 22, so that the locking pawl 41 is relative to the fixed cover 2 Rotate around the rotation point 43.
在上述实施例中，上述连接片9设于固定盖2远离驱动板3的一侧，连接片9设于容置腔内，驱动板3设于容置腔外，连接片9穿过固定盖2的中心并与驱动板3固定，从而实现在轴向上对驱动板3进行限位，使得驱动板3能够相对于固定盖2转动并且二者不会脱离。具体的，固定盖2的中心设有中心孔，该中心孔与驱动板3的旋转轴11线同轴，连接片9设有套筒，套筒穿过中心孔与驱动板3焊接固定。或者，本实施例中，还可以将该连接片9设置为固定于驱动板3的下表面远离棘爪6的一侧，同时固定盖2设有供该连接片9穿过的中心孔，而将连接片9设置为穿过固定盖2的中心并与驱动板3固定的方案可简化整体结构，同时该连接片9还能够对驱动板3进行轴向限位。In the above embodiment, the connecting piece 9 is arranged on the side of the fixed cover 2 away from the driving board 3, the connecting piece 9 is arranged in the accommodating cavity, the driving board 3 is arranged outside the accommodating cavity, and the connecting piece 9 passes through the fixed cover The center of 2 is fixed with the drive plate 3, so that the drive plate 3 is limited in the axial direction, so that the drive plate 3 can rotate relative to the fixed cover 2 without the two being separated. Specifically, the center of the fixed cover 2 is provided with a central hole, the central hole is coaxial with the rotation axis 11 of the drive plate 3, the connecting piece 9 is provided with a sleeve, and the sleeve passes through the central hole and is welded and fixed to the drive plate 3. Alternatively, in this embodiment, the connecting piece 9 can also be fixed to the side of the lower surface of the drive plate 3 away from the pawl 6, while the fixed cover 2 is provided with a central hole for the connecting piece 9 to pass through, and The solution of arranging the connecting piece 9 to pass through the center of the fixed cover 2 and being fixed to the driving board 3 can simplify the overall structure, and at the same time, the connecting piece 9 can also axially limit the driving board 3.
在上述实施例中，如图7所示，固定盖2设有异形孔21，异形孔21的外缘边为开口朝向固定盖2的中心的一侧的弧形边211，弧形边211的周向两侧设置有向远离固定盖2的中心的一侧延伸的延伸孔212，第一铰接点62穿过异形孔21并与驱动板3铰接，且棘爪6在第一铰接点62的两侧分别设有一个侧凸台64，驱动板3由极限位置回至原位过程中，侧凸台64能够贴紧弧形边211并沿弧形边221滑动，以使棘爪6与内齿圈51脱离。In the above embodiment, as shown in FIG. 7, the fixed cover 2 is provided with a special-shaped hole 21. The outer edge of the special-shaped hole 21 is an arc-shaped side 211 on the side that opens toward the center of the fixed cover 2. An extension hole 212 extending to the side away from the center of the fixed cover 2 is provided on both sides in the circumferential direction. The first hinge point 62 passes through the special-shaped hole 21 and is hinged with the drive plate 3, and the pawl 6 is at the first hinge point 62. A side boss 64 is provided on both sides. During the process of returning the drive plate 3 from the limit position to the original position, the side boss 64 can close to the arc-shaped edge 211 and slide along the arc-shaped edge 221, so that the pawl 6 and the inner The ring gear 51 is disengaged.
其中，异形孔21的外缘边是指异形孔21远离固定盖2中心的一侧的孔边，具体的，该异形孔21可以是扇形孔也可以是弧形孔均可，在此不做具体限制。棘爪6的第一铰接点62可在异形孔21内移动，以实现其与驱动板3之间的灵活铰接，侧凸台64可在异形孔21内移动，而当驱动板3 转动至极限位置并在回至原位的过程中，带动棘爪6反转时，棘爪6先绕第二铰接点63反转使得相互啮合的棘齿61与内齿圈51脱离，并且棘爪6另一侧的棘齿61有与内齿圈51啮合的趋势，但与该具有啮合趋势的棘齿61的同侧的侧凸台64将与弧形边211贴紧并沿该弧形边211滑动，以限制该棘爪6的转动角度，从而避免该棘爪6的另一侧棘齿61与内齿圈51啮合。保证驱动板3在回至原位之前，棘爪6两侧的棘齿61均与内齿圈51保持脱离的状态，直至驱动板3回至原位，使得在驱动板3回至原位的过程中不会产生噪音，舒适性好。Among them, the outer edge of the special-shaped hole 21 refers to the side of the hole on the side of the special-shaped hole 21 away from the center of the fixed cover 2. Specifically, the special-shaped hole 21 can be a fan-shaped hole or an arc-shaped hole. Specific restrictions. The first hinge point 62 of the pawl 6 can move in the special-shaped hole 21 to realize the flexible hinge connection between it and the drive plate 3. The side boss 64 can move in the special-shaped hole 21, and when the drive plate 3 rotates to the limit Position and in the process of returning to the original position, when the pawl 6 is driven to reverse, the pawl 6 first reverses around the second hinge point 63 so that the inter-engaging ratchet teeth 61 and the ring gear 51 are disengaged, and the pawl 6 is different The ratchet tooth 61 on one side has a tendency to mesh with the ring gear 51, but the side boss 64 on the same side as the ratchet tooth 61 with the tendency to mesh will be in close contact with the arc-shaped side 211 and slide along the arc-shaped side 211 , To limit the rotation angle of the pawl 6 so as to prevent the other side of the ratchet tooth 61 of the pawl 6 from meshing with the ring gear 51. Ensure that the ratchet teeth 61 on both sides of the pawl 6 remain separated from the ring gear 51 before the drive plate 3 returns to the original position, until the drive plate 3 returns to the original position, so that the drive plate 3 returns to the original position. No noise is generated during the process, and the comfort is good.
或者，还可以将该异形孔21理解为设于固定盖2的一个弧形孔或扇形孔，在该弧形孔或扇形孔远离固定盖2中心的一侧的孔边向固定盖2中心的一侧凸出以形成上述弧形边211，弧形边211的周向两侧的部分形成上述延伸孔212。如图7所示，本实施例中，延伸孔212不仅向远离固定盖2的中心的一侧延伸，同时还沿周向向外延伸，如此一来，可在为棘爪6的转动提供足够空间的同时，还能够减小该异形孔21的截面积，保证该固定盖2的强度。Alternatively, the special-shaped hole 21 can also be understood as an arc-shaped hole or a fan-shaped hole provided in the fixed cover 2. The side of the hole on the side of the arc-shaped hole or fan-shaped hole away from the center of the fixed cover 2 faces the center of the fixed cover 2. One side protrudes to form the above-mentioned arc-shaped side 211, and portions on both sides of the arc-shaped side 211 in the circumferential direction form the above-mentioned extension hole 212. As shown in FIG. 7, in this embodiment, the extension hole 212 not only extends to the side away from the center of the fixed cover 2, but also extends outward in the circumferential direction. In this way, it can provide enough for the rotation of the pawl 6 At the same time of space, the cross-sectional area of the special-shaped hole 21 can be reduced to ensure the strength of the fixed cover 2.
在上述实施例中，阻滞片7还设有能够提供轴向支撑力的弹性件71，具体的，可将该弹性件71设置为螺旋弹簧或者弹性片均可，在此不做具体限制。该弹性件71能够为阻滞片7提供轴向支撑力以使阻滞片7的下表面贴紧核心件8。具体的，如图2所示，棘轮5的中部设有与核心件8的其它驱动结构连接的连接结构，该连接结构的顶端面设有环形台面，阻滞片7的下端面该环形台面贴紧并在转动过程中产生摩擦阻力，当然，本实施例中，还可以将阻滞片7的下端面与核心件8的其它部位接触以产生摩擦阻力，在此并不做具体限制。In the above-mentioned embodiment, the blocking piece 7 is further provided with an elastic member 71 capable of providing axial supporting force. Specifically, the elastic member 71 can be configured as a coil spring or an elastic piece, which is not specifically limited herein. The elastic member 71 can provide axial support for the blocking sheet 7 so that the lower surface of the blocking sheet 7 is close to the core member 8. Specifically, as shown in FIG. 2, the middle of the ratchet 5 is provided with a connecting structure connected with other driving structures of the core member 8. The top surface of the connecting structure is provided with an annular table surface, and the lower end surface of the blocking plate 7 is attached to the annular table surface. The frictional resistance is generated during the rotation. Of course, in this embodiment, the lower end surface of the blocking plate 7 can also be contacted with other parts of the core member 8 to generate frictional resistance, which is not specifically limited here.
弹性件71可以设于阻滞片7的上方，使得弹性件71的上端面与固定盖2的下端面接触，阻滞片7的下端面与核心件8接触，或者，还可以将弹性件71设于阻滞片7的下方，弹性件71的下端面与核心件8接触，阻滞片7的上端面与固定盖2的下端面接触，安装时，固定盖2能够从上方对阻滞片7的弹性件71产生预压的作用，使得阻滞片7能够在固定盖2和核心件8(棘轮5)之间呈预压状态，棘轮5在转动过程中，固定盖2和核心件8能够同时从上下两侧为阻滞片7提供摩擦阻力，从而保证其具 有足够的摩擦力，该弹性件71的设置还可避免发生该阻滞片7被压坏的情况，保证其使用寿命。The elastic piece 71 may be arranged above the blocking piece 7, so that the upper end surface of the elastic piece 71 is in contact with the lower end surface of the fixing cover 2, and the lower end surface of the blocking piece 7 is in contact with the core piece 8, or the elastic piece 71 may also be Located below the blocking plate 7, the lower end surface of the elastic member 71 is in contact with the core piece 8, and the upper end surface of the blocking plate 7 is in contact with the lower end surface of the fixed cover 2. When installed, the fixed cover 2 can face the blocking plate from above. The elastic member 71 of 7 generates a pre-compression effect, so that the blocking piece 7 can be in a pre-compressed state between the fixed cover 2 and the core member 8 (ratchet wheel 5). During the rotation of the ratchet wheel 5, the cover 2 and the core member 8 are fixed. The blocking plate 7 can be provided with friction resistance from the upper and lower sides at the same time, so as to ensure that it has sufficient friction. The arrangement of the elastic member 71 can also prevent the blocking plate 7 from being crushed and ensure its service life.
具体的，本实施例中，棘爪6的第一铰接点62与驱动板3铰接，对于铰接的结构不做具体限制，如图2和图6所示，本实施例中，驱动板3设有驱动孔，棘爪6设有驱动凸台，驱动凸台穿过异形孔21后位于驱动孔内，以实现驱动板3的转动可带动棘爪6转动。或者，本实施例中，还可以将驱动板3设有驱动凸台，棘爪6设有驱动孔，以实现驱动板3的转动可带动棘爪6转动均可，在此不做具体限制。同样的，棘爪6通过第二铰接点63与阻滞片7铰接，具体的，可以是棘爪6设有铰接孔，阻滞片7设有铰接凸起，铰接孔与铰接凸起配合以实现棘爪6与阻滞片7之间的铰接，或者还可以是棘爪6设有铰接凸起，阻滞片7设有铰接孔均可，在此不做具体限制。Specifically, in this embodiment, the first hinge point 62 of the pawl 6 is hinged with the drive plate 3, and there is no specific restriction on the structure of the hinge. As shown in Figures 2 and 6, in this embodiment, the drive plate 3 is provided with There is a driving hole, the pawl 6 is provided with a driving boss, and the driving boss passes through the special-shaped hole 21 and is located in the driving hole, so that the rotation of the driving plate 3 can drive the pawl 6 to rotate. Alternatively, in this embodiment, the drive plate 3 can also be provided with a drive boss, and the pawl 6 can be provided with a drive hole, so that the rotation of the drive plate 3 can drive the pawl 6 to rotate, and there is no specific limitation here. Similarly, the pawl 6 is hinged to the blocking plate 7 through the second hinge point 63. Specifically, the pawl 6 is provided with a hinge hole, the blocking plate 7 is provided with a hinge protrusion, and the hinge hole is matched with the hinge protrusion to The hinged connection between the pawl 6 and the blocking plate 7 can be realized, or the pawl 6 may be provided with hinged protrusions, and the blocking plate 7 may be provided with hinged holes, and there is no specific limitation here.
在上述实施例中，该高度调节器还包括固设于壳体1外壁的挡片12和套设于壳体1的扭簧10，驱动板3设有挡板31，挡片12和挡板31均位于扭簧10的两个支腿101之间，挡片12与壳体1固定，用于对扭簧10的位置进行限位，驱动板3转动后将推动扭簧10的支腿101转动并压缩扭簧10，而当撤出操作手柄的作用力，驱动板3将在扭簧10的作用下回至原位。In the above embodiment, the height adjuster further includes a baffle 12 fixed on the outer wall of the housing 1 and a torsion spring 10 sleeved on the housing 1. The drive plate 3 is provided with a baffle 31, the baffle 12 and the baffle 31 are located between the two legs 101 of the torsion spring 10, the baffle 12 is fixed to the housing 1, and is used to limit the position of the torsion spring 10. After the drive plate 3 rotates, the leg 101 of the torsion spring 10 will be pushed The torsion spring 10 is rotated and compressed, and when the force of the operating handle is withdrawn, the drive plate 3 will return to the original position under the action of the torsion spring 10.
以上仅是本发明的优选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也应视为本发明的保护范围。The above are only the preferred embodiments of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be considered This is the protection scope of the present invention.

Claims (10)

  1. 一种汽车座椅的高度调节器，其特征在于，包括壳体(1)、固定盖(2)、驱动部、锁定部(4)和设有棘轮(5)的核心件(8)，所述固定盖(2)固设于所述壳体(1)的顶端并围合形成容置腔，所述核心件(8)和所述锁定部(4)位于所述容置腔内，所述棘轮(5)设有内齿圈(51)；A height adjuster for a car seat, which is characterized by comprising a housing (1), a fixed cover (2), a driving part, a locking part (4) and a core part (8) provided with a ratchet wheel (5), so The fixed cover (2) is fixed on the top end of the housing (1) and encloses to form an accommodating cavity, the core piece (8) and the locking portion (4) are located in the accommodating cavity, so The ratchet wheel (5) is provided with an inner gear ring (51);
    所述驱动部包括与操作手柄连接的驱动板(3)以及设于所述容置腔内的棘爪(6)和阻滞片(7)，所述驱动板(3)、所述阻滞片(7)和所述核心件(8)同轴，所述驱动板(3)与所述固定盖(2)可旋转连接，所述阻滞片(7)夹设于所述固定盖(2)和所述核心件(8)之间，所述棘爪(6)的两侧分别设有棘齿(61)，所述棘爪(6)的第一铰接点(62)与所述驱动板(3)铰接，所述棘爪(6)的第二铰接点(63)与所述阻滞片(7)铰接，所述驱动板(3)的转动能够带动所述棘爪(6)绕所述第二铰接点(63)转动使得所述棘爪(6)的一侧的所述棘齿(61)与所述内齿圈(51)啮合或脱离；The driving part includes a driving plate (3) connected with an operating handle, a pawl (6) and a blocking piece (7) arranged in the containing cavity, the driving plate (3), the blocking plate (7), The plate (7) is coaxial with the core piece (8), the drive plate (3) is rotatably connected with the fixed cover (2), and the blocking plate (7) is clamped on the fixed cover ( 2) and the core piece (8), ratchet teeth (61) are provided on both sides of the pawl (6), and the first hinge point (62) of the pawl (6) is connected to the The drive plate (3) is hinged, the second hinge point (63) of the pawl (6) is hinged to the blocking plate (7), and the rotation of the drive plate (3) can drive the pawl (6) ) Rotating around the second hinge point (63) so that the ratchet tooth (61) on one side of the pawl (6) engages or disengages from the inner gear ring (51);
    所述锁定部(4)包括锁簧(42)和锁爪(41)，所述锁爪(41)设有锁齿(411)并通过旋转点(43)与所述固定盖(2)可旋转连接，所述锁齿(411)能够在所述锁簧(42)的作用下与所述内齿圈(51)啮合，所述容置腔内还设有与所述驱动板(3)同步转动的连接片(9)，所述连接片(9)的转动能够作用于所述锁爪(41)绕所述旋转点(43)转动以使所述锁齿(411)和所述内齿圈(51)啮合或脱离。The locking portion (4) includes a lock spring (42) and a lock pawl (41). The lock pawl (41) is provided with a lock tooth (411) and can be connected to the fixed cover (2) through a rotation point (43). Rotatingly connected, the lock tooth (411) can mesh with the inner gear ring (51) under the action of the lock spring (42), and the accommodating cavity is also provided with the drive plate (3) Synchronously rotating connecting piece (9), the rotation of the connecting piece (9) can act on the rotation of the locking pawl (41) around the rotation point (43) to make the locking tooth (411) and the inner The gear ring (51) is engaged or disengaged.
  2. 根据权利要求1所述的汽车座椅的高度调节器，其特征在于，所述连接片(9)设有滑道(92)和开设于所述滑道(92)的限位槽(91)，所述锁爪(41)还包括限位件(412)，所述限位件(412)和所述锁齿(411)分别位于所述旋转点(43)的两侧，所述限位件(412)与所述限位槽(91)配合时，所述锁齿(411)与所述内齿圈(51)啮合，所述限位件(412)沿所述滑道(92)滑动时，所述锁齿(411)与所述内齿圈(51)脱离；The height adjuster for a car seat according to claim 1, wherein the connecting piece (9) is provided with a slideway (92) and a limit slot (91) opened in the slideway (92) , The locking pawl (41) further includes a limiting member (412), the limiting member (412) and the locking tooth (411) are respectively located on both sides of the rotation point (43), the limiting When the member (412) is matched with the limiting groove (91), the locking tooth (411) meshes with the ring gear (51), and the limiting member (412) is along the slideway (92). When sliding, the locking tooth (411) is separated from the inner gear ring (51);
    所述连接片(9)的转动能够使所述限位件(412)沿所述限位槽(91)的内壁滑动至所述滑道(92)并沿所述滑道(92)滑动。The rotation of the connecting piece (9) enables the limiting member (412) to slide along the inner wall of the limiting groove (91) to the slideway (92) and slide along the slideway (92).
  3. 根据权利要求2所述的汽车座椅的高度调节器，其特征在于，所述 锁簧(42)为夹设于所述连接片(9)和所述锁爪(41)之间的片弹簧，所述片弹簧与所述锁爪(41)固定。The height adjuster for a car seat according to claim 2, wherein the lock spring (42) is a leaf spring sandwiched between the connecting piece (9) and the lock pawl (41) , The leaf spring is fixed to the locking pawl (41).
  4. 根据权利要求3所述的汽车座椅的高度调节器，其特征在于，所述片弹簧设有连接孔(421)，所述连接孔(421)套设于所述旋转点(43)的外侧并可绕所述旋转点(43)转动。The height adjuster for a car seat according to claim 3, wherein the leaf spring is provided with a connecting hole (421), and the connecting hole (421) is sleeved on the outside of the rotation point (43) And can rotate around the rotation point (43).
  5. 根据权利要求3所述的汽车座椅的高度调节器，其特征在于，所述旋转点(43)与所述锁齿(411)之间的距离大于所述旋转点(43)与所述限位件(412)之间的距离。The height adjuster for a car seat according to claim 3, wherein the distance between the rotation point (43) and the locking tooth (411) is greater than the rotation point (43) and the limit The distance between the position pieces (412).
  6. 根据权利要求5所述的汽车座椅的高度调节器，其特征在于，所述锁定部(4)包括两个所述锁爪(41)，且两个所述锁爪(41)关于所述棘轮(5)的径向对称设置。The height adjuster for a car seat according to claim 5, wherein the locking portion (4) includes two locking pawls (41), and the two locking pawls (41) are related to the The ratchet wheel (5) is arranged symmetrically in the radial direction.
  7. 根据权利要求1-6任一项所述的汽车座椅的高度调节器，其特征在于，所述锁爪(41)的上端面和所述固定盖(2)的下端面中，一者设有凸柱(413)，另一者设有与所述凸柱(413)相适配的通孔或凹槽(22)，所述凸柱(413)位于所述通孔或凹槽(22)内并可相对于所述通孔或凹槽(22)转动，以形成所述旋转点(43)。The height adjuster for a car seat according to any one of claims 1-6, wherein one of the upper end surface of the locking pawl (41) and the lower end surface of the fixed cover (2) is provided There is a convex post (413), the other is provided with a through hole or groove (22) that matches the convex post (413), and the convex post (413) is located in the through hole or groove (22). ) Can be rotated relative to the through hole or groove (22) to form the rotation point (43).
  8. 根据权利要求1-6任一项所述的汽车座椅的高度调节器，其特征在于，所述固定盖(2)设有异形孔(21)，所述异形孔(21)的外缘边为开口朝向所述固定盖(2)的中心的弧形边(211)，所述弧形边(211)的周向两侧设置有向远离所述固定盖(2)的中心的一侧延伸的延伸孔(212)；The height adjuster for a car seat according to any one of claims 1-6, wherein the fixed cover (2) is provided with a special-shaped hole (21), and the outer edge of the special-shaped hole (21) It is an arc-shaped side (211) that opens toward the center of the fixed cover (2), and both circumferential sides of the arc-shaped side (211) are provided with a side extending away from the center of the fixed cover (2) The extension hole (212);
    所述第一铰接点(62)穿过所述异形孔(21)并与所述驱动板(3)铰接，且所述棘爪(6)在所述第一铰接点(62)的两侧分别设有一个侧凸台(64)，所述驱动板(3)在回至原位过程中，所述侧凸台(64)能够贴紧所述弧形边(211)并沿所述弧形边(211)滑动，以使所述棘齿(61)与所述内齿圈(51)脱离。The first hinge point (62) passes through the special-shaped hole (21) and is hinged with the drive plate (3), and the pawl (6) is on both sides of the first hinge point (62) A side boss (64) is respectively provided. When the drive plate (3) is returned to the original position, the side boss (64) can abut the arc edge (211) and follow the arc The shaped edge (211) slides to disengage the ratchet tooth (61) from the inner gear ring (51).
  9. 根据权利要求1-6任一项所述的汽车座椅的高度调节器，其特征在于，所述阻滞片(7)还设有能够提供轴向支撑力的弹性件(71)。The height adjuster for a car seat according to any one of claims 1 to 6, characterized in that the blocking sheet (7) is further provided with an elastic member (71) capable of providing axial support force.
  10. 一种汽车座椅，其特征在于，包括如权利要求1-9任一项所述的高度调节器。A car seat, characterized by comprising the height adjuster according to any one of claims 1-9.
PCT/CN2020/111609 2019-08-30 2020-08-27 Vehicle seat and height adjuster thereof WO2021037114A1 (en)

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CN201910816585.7A CN110395149B (en) 2019-08-30 2019-08-30 Automobile seat and height adjuster thereof

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