WO2019054163A1 - Head-up display device - Google Patents

Head-up display device Download PDF

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Publication number
WO2019054163A1
WO2019054163A1 PCT/JP2018/031483 JP2018031483W WO2019054163A1 WO 2019054163 A1 WO2019054163 A1 WO 2019054163A1 JP 2018031483 W JP2018031483 W JP 2018031483W WO 2019054163 A1 WO2019054163 A1 WO 2019054163A1
Authority
WO
WIPO (PCT)
Prior art keywords
elastic
reflector
main body
head
display device
Prior art date
Application number
PCT/JP2018/031483
Other languages
French (fr)
Japanese (ja)
Inventor
太陽 岩屋
佑哉 宇都
Original Assignee
日本精機株式会社
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 日本精機株式会社 filed Critical 日本精機株式会社
Priority to JP2019541976A priority Critical patent/JP7126075B2/en
Publication of WO2019054163A1 publication Critical patent/WO2019054163A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays

Definitions

  • the present disclosure relates to a head-up display device having a drive for pivoting a reflector.
  • the display light from the display element is reflected by a reflector (concave mirror) and projected on the windshield of the vehicle, and the projected display image (virtual image) is the driver of the vehicle
  • a head-up display device that makes In such a head-up display device, generally, in order to adjust the reflection angle of the display light by the reflection member, the mirror holder holding the concave mirror is rotated about a predetermined rotation axis.
  • the protruding pieces of the mirror holder are held by being held by the pair of resin walls.
  • the mirror holder may move (jagger) in the moving direction of the slider, and the movement of the mirror holder may cause a blur in the displayed image. There is.
  • the subject of this indication is providing the head-up display apparatus which suppresses the blurring of a display image.
  • a head-up display device comprising: a display for outputting display light; and a reflector for reflecting the display light, wherein the display light reflected by the reflector is projected onto a projection member to display a virtual image.
  • a drive device for rotating the reflector.
  • the drive device includes a drive unit, and a movable member moved by the drive force of the drive unit.
  • the movable member includes a main body and a support that supports the reflector.
  • the supporting portion is provided with an elastic supporting portion for urging the reflector, and is provided opposite to the elastic supporting portion in the moving direction of the movable member, and supports the reflector urged by the elastic supporting portion. And a fixed support portion.
  • FIG. 7 It is a schematic block diagram of the head up display device which is one embodiment of this indication. It is a schematic sectional drawing of the display apparatus of the head-up display apparatus shown in FIG. It is a schematic perspective view which shows the drive device of this embodiment. It is a schematic side view which shows the drive device of this embodiment. It is a schematic perspective view which expands and shows the movable member of this embodiment. It is a schematic perspective view which shows the elastic member of this embodiment. It is a schematic perspective view which shows the elastic member fixing
  • FIG. 6 is a transparent top view of the movable member shown in FIG. 5; It is the schematic side view which looked at the drive device of this embodiment from the opposite side to FIG. It is a schematic diagram for demonstrating the operation
  • FIG. 1 is a schematic configuration diagram of a head-up display device according to an embodiment of the present disclosure.
  • FIG. 2 is a schematic cross-sectional view of a display device in a head-up display device according to an embodiment of the present disclosure.
  • the head-up display device 1000 has a display device 102 provided inside an instrument panel 101 of the vehicle 100, and is a windshield that is a projection member and displays light L projected by the display device 102.
  • the virtual image (display image) V is displayed by being reflected in the direction of the driver 104 of the vehicle 100 at 103.
  • the head-up display device irradiates (projects) display light L emitted from the later-described liquid crystal display 110 of the display device 102 to the windshield 103, and the driver 104 visually recognizes the virtual image V obtained by this irradiation. It is Thus, the driver 104 can observe the virtual image V superimposed on the landscape.
  • the display device 102 has a liquid crystal display 110, a first reflector 120, a second reflector 130, and a housing 140, as shown in FIG.
  • the liquid crystal display 110 has a light source 111 and a liquid crystal display element (display element) 112.
  • the light source 111 is a light emitting diode mounted on the wiring board R.
  • the liquid crystal display element 112 is a thin film transistor (TFT) type liquid crystal display element positioned in front of (directly above) the light source 111 so as to transmit illumination light from the light source 111 to form display light L.
  • the liquid crystal display element 112 is information to be displayed (for example, the speed of the vehicle or the number of engine revolutions) by light emitted from the light source 111 disposed behind (directly below) based on a drive signal from an element drive circuit (not shown). Is a light emitting display by numerical values and the like.
  • the information to be displayed is not limited to the speed of the vehicle or the number of engine revolutions, and the display form is not limited to the numerical display, and any form can be adopted.
  • the liquid crystal display 110 emits display light L composed of light in the visible wavelength range, and can use, for example, a light source 111 emitting red light (mainly emission wavelength range 610 to 640 nm).
  • Such a liquid crystal display 110 is provided in the housing 140 so that the surface on the emission side of the display light L faces a cold mirror 121 described later of the first reflector 120, and the optical axis of the display light L is cold It is fixed and held at such a position and direction as to intersect the mirror 121.
  • the first reflector 120 has a cold mirror 121 and a mounting member 122 for fixing the cold mirror 121 to the housing 140.
  • the cold mirror 121 is for reflecting the display light L emitted from the liquid crystal display 110 toward the second reflector 130 (concave mirror 131).
  • the cold mirror 121 is formed of a substantially rectangular glass substrate 121 a and a single layer of the glass substrate 121 a (a surface of the second reflector 130 facing the concave mirror 131 described later) by vapor deposition or the like, and has a different thickness.
  • a first reflective layer 121b made of an interference film.
  • the mounting member 122 is made of, for example, a black synthetic resin material, and is fixed to the housing 140.
  • the cold mirror 121 reflects light in the visible wavelength range (450 to 750 nm) including the emission wavelength range of the liquid crystal display 110 at a high reflectance (for example, 80% or more), and reflects light in regions other than the visible wavelength range as low. It reflects at a rate.
  • the cold mirror 121 one that reflects light other than the visible wavelength range, particularly light in the infrared wavelength range (infrared rays or heat rays of sunlight) with a low reflectance (for example, 15% or less) is applied.
  • the light which is not reflected by the first reflection layer 121 b is transmitted through the cold mirror 121.
  • the cold mirror 121 is disposed at a position which can not be directly seen from the light-transmissive cover 144 described later of the housing 140, and external light such as sunlight is received. It is designed not to hit directly.
  • the second reflector 130 has a concave mirror 131 and a mirror holder 132 for holding the concave mirror 131.
  • the concave mirror 131 has a second reflection layer 131a deposited on the concave surface of a resin substrate made of polycarbonate, and transmits light of the housing 140 while expanding the display light L from the cold mirror 121 (that is, the liquid crystal display element 112). The light is reflected toward the windshield 103 through the sexing cover 144.
  • the concave mirror 131 is disposed such that the second reflective layer 131 a faces the cold mirror 121 and the translucent cover 144 of the housing 140, and is disposed at a position where it can be seen from the translucent cover 144.
  • the mirror holder 132 is made of a synthetic resin material, and has a rotation axis A that is axially supported by a bearing provided in the housing 140 and that is orthogonal to the optical axis of the display light L. That is, the mirror holder 132 and the concave mirror 131 held thereby are rotatable around the rotation axis A, whereby the angular position of the mirror holder 132, that is, the projection direction of the display light L can be adjusted. .
  • the mirror holder 132 is formed with a protruding piece 132 a that partially protrudes outward in the radial direction of the rotation axis A. The mirror holder 132 can be rotated by moving the protruding piece 132 a by the driving force from the drive device 1. The details of the driving device 1 will be described later.
  • the housing 140 is formed of, for example, an aluminum die-cast, and each has an upper case body 141 and a lower case body 142 each having a substantially U-shaped cross section.
  • the upper case body 141 and the lower case body 142 form an internal space 143, and the liquid crystal display 110, the first reflector 120, and the second reflector 130 are accommodated in the internal space 143.
  • an opening 141a is formed at a position facing the concave mirror 131, and a translucent cover 144 is disposed so as to close the opening 141a.
  • the translucent cover 144 is made of a translucent synthetic resin material (for example, acrylic resin), and has a function as a light transmitting member through which the display light L reflected by the concave mirror 131 passes (passes). That is, the display light L reflected by the concave mirror 131 is projected onto the front glass 103 through the translucent cover 144 provided on the housing 140, whereby the display of the virtual image V is performed.
  • FIG. 3 is a schematic perspective view showing the drive device of the present embodiment
  • FIG. 4 is a schematic side view showing the drive device of the present embodiment, showing a state in which the projecting piece of the mirror holder is supported.
  • the output side L1 one side from which the lead screw 4 protrudes is the output side L1
  • the side from which the lead screw 4 protrudes is the opposite side (the other side) to the non-output side L2.
  • the direction in which the support portions 2c and 2b of the frame 2 extend with respect to the direction of the axis L is taken as an X direction
  • the direction orthogonal to the X direction and the direction of the axis L is taken as a Y direction.
  • the driving device 1 moves in the direction of the axis L by engaging the spiral groove with a lead screw 4 having a helical groove formed on the outer peripheral surface, a drive unit 3 for rotationally driving the lead screw 4 around the axis L
  • the movable member 6 and the frame 2 for supporting the drive unit 3 and the like are provided.
  • a guide shaft 5 disposed parallel to the lead screw 4 along the axis L direction is fixed to the frame 2.
  • the driving unit 3 is a motor such as a stepping motor, and generally includes a stator 14 constituting a motor case and a rotor (not shown) disposed inside the stator 14.
  • the rotor comprises a shaft 19 and a permanent magnet (not shown) fixed to the shaft 19.
  • the stator 14 is fixed by welding or the like to the support portion 2 b on the non-output side L 2 in the direction of the axis L of the frame 2.
  • a substrate holder 60 for holding the power supply substrate 70 is fixed to the support portion 2 b by a bolt.
  • Terminal pins 82 serving as a feeding portion are provided on side surfaces of the stator 14 and are electrically connected to the feeding substrate 70.
  • a terminal portion (not shown) of the drive coil of the stator 14 is wound around the terminal pin 82, and the terminal pin 82 and the feed substrate 70 are soldered to electrically connect the feed substrate 80 and the drive coil. You can make a connection.
  • the switch unit 50 is attached to the feed substrate 70.
  • the switch unit 50 is a press-type switch that detects an origin position of the movable member 6 in the movement direction (the direction of the axis L).
  • the electrical connection between the switch unit 50 and the feed substrate 70 is achieved by soldering the terminal pins 52 a and 52 b of the switch unit 50 and the feed substrate 70.
  • the frame 2 has a plate-like frame main body 2a, and a pair of support portions 2b and 2c formed by bending both ends in the longitudinal direction of the frame main body 2a, and utilizing a hole 2g formed in the frame main body 2a And fixed to the housing 140.
  • the drive part 3 is being fixed to the support part 2b of the non-output side L2 of an axis L direction.
  • the lead screw 4 is integrally formed with the shaft 19 of the drive unit 3 and forms a spiral groove on the outer peripheral surface of a portion of the shaft 19 (a portion projecting from the stator 14 to the output side L1 in the axis L direction). Is made up of Therefore, the lead screw 4 is rotationally driven by the drive unit 3.
  • the lead screw 4 is disposed substantially in parallel with the frame body 2a, and the end of the output side L1 in the direction of the axis L can be rotated by a bearing 7a provided on the support portion 2c of the output side L1 in the direction of the axis L of the frame 2. It is supported.
  • the end of the non-output side L2 in the direction of the axis L of the shaft 19 is rotatably supported by the bearing 7b attached to the drive unit 3, and the tip thereof is in the direction of the axis L by the biasing member 7c formed of a plate spring. Is biased to the output L1 of the
  • the guide shaft 5 is disposed in parallel to the lead screw 4, and both ends thereof are fixed to the support portions 2 b and 2 c of the frame 2, respectively.
  • the guide shaft 5 and the lead screw 4 are arranged to overlap in the X direction.
  • the movable member 6 is provided on a nut unit 40 engaged with the lead screw 4 to move in the direction of the axis L, a main body 9 moving integrally with the nut unit 40 in the direction of the axis L, and above the main body 9 And a supporting portion 10 for supporting the projecting piece 132a of the mirror holder 132 which is a material.
  • the main body portion 9 is formed with a guide hole 8 through which the guide shaft 5 passes and a nut arrangement portion 11 in which a nut unit 40 is arranged.
  • the movable member 6 reciprocates in the direction of the axis L while being guided by the guide shaft 5 as the nut unit 40 reciprocates in the direction of the axis L along with the rotation of the lead screw 4 by the drive unit 3.
  • the protrusion 132a reciprocates in the direction of the axis L, whereby the mirror holder 132 can be rotated at a predetermined angle around the rotation axis A (see FIG. 2).
  • the support portion 10 is provided to be opposed to the elastic support portion 20 on the non-output side L2 in the axis L direction, and the elastic support portion 20 that biases the projecting piece 132a of the mirror holder 132 on the anti-output side L2 in the axis L direction. And a fixed support 30 for supporting the projecting piece 132 a biased by the elastic support 20. According to such a configuration, the projecting piece 132a is supported by the elastic support portion 20 while being always pressed against the fixed support portion 30.
  • the position of the protruding piece 132a can always be determined based on the fixed support portion 30, and the position of the protruding piece 132a can be made difficult to shift even if there is movement or vibration, for example.
  • the biasing force of the elastic support portion 20 can suppress the rattling of the protruding piece 132a even when the vehicle vibrates, and can suppress the occurrence of blurring in the display image.
  • the support portion 10 of the present embodiment can improve the positioning accuracy of the protruding piece 132 a of the mirror holder 132.
  • the elastic support portion 20 has an elastic member 21 which abuts on the projection piece 132a of the mirror holder 132 and biases the projection piece 132a toward the fixed support portion 30, and an elastic member fixing portion 22 which fixes the elastic member 21.
  • the elastic member fixing portion 22 is made of a synthetic resin material such as polyacetal and is provided integrally with the main body portion 9.
  • the elastic member fixing portion 22 may be fixed to the main body portion 9 by a method such as adhesion after being formed separately from the main body portion 9.
  • the fixed support portion 30 is made of metal such as stainless steel, and is formed of a material having rigidity higher than that of the main body portion 9 made of resin.
  • the fixed support portion 30 is integrally formed with the main body portion 9 by insert molding. Therefore, the fixed support 30 is partially embedded and fixed in the main body 9.
  • the strength of the fixed support portion 30 can be improved as compared with the case where the fixed support portion 30 is integrally formed of the resin with the main body portion 9.
  • the resonance frequency of the head-up display device 1000 as a whole can be increased, generation of resonance due to vehicle vibration can be suppressed, and generation of blurring in a display image can be suppressed.
  • FIG. 5 is a schematic perspective view showing the movable member of the present embodiment in an enlarged manner. The nut unit is not shown in FIG. 5 for the sake of simplicity.
  • FIG. 6 is a schematic perspective view showing the elastic member of the present embodiment.
  • FIG. 7 is a schematic perspective view showing the elastic member fixing portion of the present embodiment, and
  • FIG. 8 is a schematic perspective view of the elastic member fixing portion shown in FIG. 7 as viewed from another direction.
  • illustration of a fixed support part is abbreviate
  • the elastic member 21 is, as shown in FIG. 6, a fixing plate portion 23 attached and fixed to the elastic member fixing portion 22, and extends from an end portion of the fixing plate portion 23 to be elastically deformable and elastically deformable plate portion 24. have.
  • the elastic member 21 in the present embodiment is a leaf spring having a relatively wide width (length in the Y direction).
  • the fixing plate portion 23 is formed with a first locking portion 23 a that locks with the second locking portion 26 b of the elastic member fixing portion 22, and the first locking portion 23 a in the present embodiment is It is an opening long in the X direction.
  • the elastically deformable plate portion 24 includes a first elastic portion 24a extending from an end portion of the fixed plate portion 23, and a second elastic portion extending obliquely from the end portion of the first elastic portion 24a to the non-output side L2 in the axis L direction. And 24b.
  • the first elastic portion 24a extends on the extension of the fixed plate portion 23 (X direction in which the fixed plate portion 23 extends), and the second elastic portion 24b extends at an acute angle with respect to the first elastic portion 24a.
  • a first fulcrum portion 25a is formed between the fixed plate portion 23 and the first elastic portion 24a. As shown in FIG.
  • the first support point portion 25 a is defined as a contact portion between the elastic member 21 and the upper end of the elastic member fixing portion 22.
  • the first supporting point 25 a is defined as a boundary between the area held by the elastic member fixing portion 22 of the elastic member 21 and the area not held by the elastic member fixing portion 22.
  • the first elastic portion 24 a is elastically deformable with respect to the fixed plate portion 23 with the first supporting point 25 a as a supporting point.
  • a second fulcrum portion 25b which is a bent portion of the elastic deformation plate portion 24 is formed between the first elastic portion 24a and the second elastic portion 24b, and the second elastic portion is used as a fulcrum.
  • the portion 24 b is elastically deformable with respect to the first elastic portion 24 a.
  • the second elastic portion 24b of the elastically deformable plate portion 24 is bent so that the tip end side thereof faces the fixed plate portion 23 side.
  • the bent portion functions as a projecting piece abutting portion 25 c that abuts on the projecting piece 132 a of the mirror holder 132.
  • the protrusion piece contact part 25c is bend
  • the protruding piece contact portion 25c may have any shape that does not catch on the protruding piece 132a and allows the protruding piece 132a to move smoothly, and may have a chamfered shape instead of a curved surface. Good.
  • the bent tip functions as a fixing portion contact portion 25d that abuts on the elastic member fixing portion 22 when the elastic deformation plate portion 24 undergoes large elastic deformation.
  • the fixing portion contact portion 25 d is in contact with the elastic member fixing portion 22 even when a large impact acts on the elastic deformation plate portion 24 due to, for example, a collision of a vehicle. Excessive deformation, that is, plastic deformation can be suppressed.
  • the shape of the second elastic portion 24b is not limited to the illustrated example, and may be, for example, an arc shape or an S-shape.
  • the elastic member fixing portion 22 is, as shown in FIGS. 7 and 8, a protrusion 26 protruding in the X direction from the main body 9 and a tip in the protrusion direction (X direction) of the protrusion 26 and a width direction (Y direction) And a pair of regulating portions 27 provided at both ends of the Between the protrusion 26 and the main body 9, a reinforcing rib 26 a that connects the protrusion 26 and the main body 9 is provided.
  • the reinforcing rib 26 a is provided to reinforce the weakest portion when the elastic member fixing portion 22 is loaded. That is, a load is applied to the elastic member fixing portion 22 in the direction of the axis L from the non-output side L2 toward the output side L1.
  • the weakest in strength and the most likely to break is the opposite side of the protrusion 26 It is a root portion of the output side L2.
  • the reinforcing rib 26a is provided in this portion, and is formed in a plate shape extending in the direction of the load (the direction of the axis L).
  • the pair of restricting portions 27 are formed on the surface of the output side L1 in the direction of the axis L of the projecting portion 26, and between the surfaces, the space having substantially the same thickness as the elastic member 21 is inserted.
  • the gap G is formed.
  • Each restricting portion 27 has a side restricting portion 27a protruding in the direction of the axis L from the surface of the output side L1 of the projecting portion 26, and a rear restricting portion 27b extending inward along the Y direction from the side restricting portion 27a. doing.
  • the side restricting portion 27 a restricts the movement of the fixing plate portion 23 of the elastic member 21 inserted in the gap G in the Y direction
  • the rear restricting portion 27 b restricts the movement of the fixing plate portion 23 in the axis L direction.
  • a second locking portion 26b that locks with the first locking portion 23a formed on the fixing plate portion 23 is formed.
  • the second locking portion 26b has a so-called snap fit shape, and has a guide surface 26d inclined with respect to the surface of the output side L1 in the axis L direction of the projecting portion 26 on the upper side in the X direction.
  • a locking surface 26e substantially perpendicular to the surface of the output side L1 in the direction of the axis L of the protrusion 26 is provided.
  • the movement of the fixed plate portion 23 in the X direction is also restricted by inserting the fixed plate portion 23 into the gap G and locking the first locking portion (opening portion) 23a to the locking surface 26e. It is possible to prevent the fixing plate portion 23 from coming off.
  • a boundary portion between the region held by the elastic member fixed portion 22 of the elastic member 21 and the region not held by the elastic member fixed portion 22 is inserted into the gap G and fixed, a boundary portion between the region held by the elastic member fixed portion 22 of the elastic member 21 and the region not held by the elastic member fixed portion 22. Is the first fulcrum 25a described above.
  • a step 26 c is formed at the tip of the X direction on the surface of the protrusion 26 opposite to the output side L 2 in the direction of the axis L.
  • the stepped portion 26 c has a width (length in the Y direction) wider than the width of the second elastic portion 24 b of the elastically deformable plate portion 24.
  • the step portion 26c can function as a relief portion for avoiding interference with the second elastic portion 24b of the elastic deformation plate portion 24, and the movable range of the elastic deformation plate portion 24 can be expanded.
  • the step portion 26c is located at the corner of the protrusion 26 facing the second elastic portion 24b, and when the elastic deformation plate portion 24 is bent, the second elastic portion 24b is located at the corner It is supposed not to hit you. Further, on the lower side in the X direction of the step portion 26c, a receiving surface 26f is formed which can be in contact with the fixing portion contact portion 25d of the elastic deformation plate portion 24, that is, the fixing portion contact portion 25d is It does not hit the step 26c. Thereby, the rotation range of the elastic deformation board part 24 can be earned.
  • the elastic member 21 is attached to the surface of the output side L1 in the direction of the axis L of the elastic member fixing portion 22, but may be attached to the surface of the non-output side L2 in the direction of the axis L,
  • the attachment method is also not limited to the snap fit method as illustrated, and for example, a screw, an adhesive, or the like can be used.
  • the elastic member 21 it is only required to bias the protruding piece 132 a of the mirror holder 132 toward the fixed support portion 30, and it is not limited to a plate spring.
  • it may be another spring member such as a coil spring, or may be made of an elastic material such as rubber.
  • FIG. 9 is a schematic perspective view showing the fixed support portion of the present embodiment.
  • 10 and 11 are respectively a perspective side view and a perspective top view of the movable member shown in FIG.
  • the fixed support 30 includes a support body 31, a pair of extending portions 32 and 33, and a pair of arms 34 and 35.
  • the supporting body 31 extends in the X direction, and the pair of extending portions 32 and 33 extend from the end of the supporting body 31 in the direction of the axis L (the moving direction of the movable member 6). Extends substantially in the direction of the axis L from both ends of the support body 31 in the Y direction.
  • the support main body portion 31 is formed with a support protrusion 31 a that protrudes toward the elastic support portion 20 facing the output side L1 in the axis L direction.
  • the support protrusion 31 a can support the projecting piece 132 a of the mirror holder 132 biased by the elastic support portion 20.
  • the support protrusions 31a are formed in a hemispherical shape. Thus, even when the inclination of the projecting piece 132a of the mirror holder 132 is largely changed by the movement of the movable member 6, the projecting piece 132a can be supported in the same manner.
  • the support protrusion 31a may have a curved tip at the tip, and is not limited to the illustrated shape.
  • the support main body portion 31 At least the upper surfaces 32a and 33a of the extension portions 32 and 33 are covered and held by the main body portion 9. This makes it possible to reliably prevent the fixing support portion 30 from coming off with respect to the main body portion 9 in the X direction.
  • the lower end portion (a portion on the opposite side of the extending portions 32 and 33 in the axis L direction) 31 b of the lower output side L 2 in the axis L direction is covered It is held.
  • the retaining in the X direction but also the retaining of the fixed support portion 30 in the direction of the axis L can be assured.
  • the main body 9 is formed with a guide hole 8 into which a guide shaft 5 for guiding the movement of the movable member 6 is fitted.
  • the pair of extension portions 32 and 33 is disposed in the main body portion 9 so as not to overlap with the guide hole 8.
  • a notch 31 c is formed in the support body 31, and the notch 31 c and the guide hole 8 are arranged to overlap in the direction of the axis L, and the pair of extension portions 32 and 33 is a notch. It extends in the direction of the axis L from the lower end portion of the support main body portion 31 divided into two in the Y direction by the portion 31c.
  • the pair of extension portions 32 and 33 are disposed in parallel with the guide hole 8 on both sides of the guide hole 8 in the main body portion 9 in the Y direction, and a part thereof overlaps the guide hole 8 in the X direction. Are arranged. Thus, even in a limited space, the extending portions 32 and 33 can be effectively disposed to effectively exhibit the retaining effect of the fixed support portion 30.
  • the number of extension parts may be one.
  • the tips of the extending portions 32, 33 reach the surface on the non-output side L2 of the projecting portion 26 of the elastic support portion 20, and in the Y direction, the extending portion 32,
  • the width 33 (the length from one end in the Y direction to the other end) is the same as that of the support body 31.
  • the lower surfaces of the extension portions 32 and 33 reach the lower end of the guide hole 8 in the X direction.
  • a part of the pair of arms 34 and 35 is embedded in the main body 9. Thereby, the contact area with the main-body part 9 of the fixed support part 30 can be enlarged further, and the fixed support part 30 can be hold
  • the base end portion of the support main body portion 31 (exposed from the main body portion 9 when stress in the axis L direction acts excessively on the support main body portion 31) The stress may concentrate on the root portion 31d and the proximal end 31d may break.
  • the cross-sectional area of the fixed support 30 along the upper surface of the main body 9 can be increased by partially embedding the pair of arms 34 and 35 in the main body 9. it can. As a result, the stress acting on the support main body portion 31 can be dispersed, and the durability to the above-described stress can be improved.
  • the pair of arm portions 34 and 35 extend obliquely with respect to the direction of the axis L such that the distance between the pair of arm portions 34 and 35 decreases as the distance from the support body portion 31 increases. Thereby, even when the size of the main body portion 9 is restricted, it is possible to suppress the formation of a portion where the resin becomes thin outside the pair of arm portions 34, 35. Furthermore, since the pair of arm portions 34 and 35 obliquely extend, a portion (portion indicated by hatching in FIG. 11) in which the pair of arm portions 34 and 35 and the support main body portion 31 hold resin is formed. The integration of the fixed support portion 30 and the main body portion 9 can be further strengthened. However, the shape of the pair of arm portions 34 and 35 is not limited to the illustrated shape. For example, the size of the main body portion 9 in the Y direction has a margin and is sufficiently outside the pair of arm portions 34 and 35 If a resin of a certain thickness can be secured, it may extend parallel to the axis L direction.
  • the fixing support portion 30 is made of metal and is fixed to the main body portion 9 made of resin by insert molding, but the material and the fixing method of the fixing support portion 30 are not limited thereto.
  • the material of the fixing support portion 30 may be a resin as long as it has rigidity higher than that of the main body portion 9, and the fixing method may be, for example, a method by press-fitting.
  • FIG. 12 (a) is a schematic side view of the drive device of this embodiment as viewed from the side opposite to FIG. 4, and FIG. 12 (b) is an area surrounded by circle B in FIG. 12 (a). It is an enlarged side view.
  • FIG. 13 is a schematic view for explaining the operation of the nut unit of the present embodiment.
  • the nut unit 40 includes a first nut member 41, a coil spring 42, and a second nut member 43, and is disposed in a groove-shaped nut disposition portion 11 formed in the main body portion 9.
  • the first nut member 41 and the second nut member 43 are screwed into the lead screw 4, and the lead screw 4 passes through the inside of the coil spring 42.
  • the first nut member 41 has a flange portion 41a having a rectangular outer shape, and a cylindrical portion 41b extending in the direction of the axis L from the flange portion 41a, and the lead screw 4 is provided inside the flange portion 41a and the cylindrical portion 41b.
  • a screw portion to be screwed is formed.
  • the second nut member 43 also has a flange portion 43a having a rectangular outer shape, and a cylindrical portion 43b extending in the direction of the axis L from the flange portion 43a, and the lead screw 4 is disposed inside the flange portion 43a and the cylindrical portion 43b. A screw portion to be screwed is formed.
  • the first nut member 41 and the second nut member 43 are disposed in the nut arrangement portion 11 so that the cylindrical portions 41a and 43a face each other.
  • the flange portion 41 a of the first nut member 41 is in contact with the pair of opposing ribs 12 a and 12 b protruding from the inner surface 11 a of the nut disposition portion 11.
  • another pair of opposing ribs 13a and 13b are formed on the inner surface 11a of the nut placement portion 11 on the opposite side L2 in the direction of the axis L of the first nut member 41, this is a nut unit 40. It is provided to facilitate the positioning of the (first nut member 41) and the movable member 6.
  • the coil spring 42 is disposed between the pair of opposing ribs 12 a and 12 b and the second nut member 43 in a compressed state. Therefore, at one end, the coil spring 42 abuts against the pair of opposing ribs 12a and 12b, and biases the pair of opposing ribs 12a and 12b to the non-output side L2 in the direction of the axis L to make the first nut member It is in contact with the flange portion 41 a of 41. At the other end, the coil spring 42 abuts on the flange portion 43a of the second nut member 43, and biases the flange portion 43a of the second nut member 43 toward the output side L1 in the axis L direction. There is.
  • the pair of opposing ribs 12a and 12b and the second nut member 43 are provided by providing the pair of opposing ribs 13a and 13b. It can control that the distance with is too close. Therefore, it is possible to suppress that the coil spring 42 is compressed excessively or the coil spring 42 is detached from the cylindrical portion 41 b of the first nut member 41.
  • the rotation of the first nut member 41 with respect to the main body portion 9 is restricted by the flange portion 41 a coming into contact with the inner surface 11 a of the nut disposition portion 11.
  • the inner surface 11 a of the nut arrangement portion 11 abuts on the flange portion 41 a of the first nut member 41 and functions as a restricting portion that restricts the rotation of the first nut member 41.
  • the first nut member 41 is biased from the coil spring 42 toward the non-output side L2 in the direction of the axis L via the pair of opposing ribs 12a and 12b, and a flange is applied.
  • the portion 41a is always in contact with the pair of opposing ribs 12a and 12b.
  • the first nut member 41 functions as a driving force transmitting unit for transmitting the driving force of the driving unit 3 to the main body 3, and the pair of opposing ribs 12 a and 12 b perform the first driving force of the driving unit 3. Functions as a driving force receiving portion received from the nut member 41 of the second embodiment.
  • the rotation of the second nut member 43 with respect to the main body portion 9 is restricted by the flange portion 43 a contacting the inner surface 11 a of the nut disposition portion 11.
  • the inner surface 11 a of the nut arrangement portion 11 abuts on the flange portion 43 a of the second nut member 43 and functions as a restricting portion that restricts the rotation of the second nut member 43.
  • the second nut member 43 is not supported by the main body 9 in the direction of the axis L, and as described above, the biasing force is directed from the coil spring 42 toward the output side L1 in the direction of the axis L Pre-load) is given.
  • the second nut member 43 functions as a preload applying portion together with the coil spring 42, and as shown in FIG. 13, between the screw portion of the first nut member 41 and the screw portion of the second nut member 43.
  • the preload F can be applied in the direction away from each other.
  • the screw portion of the first nut member 41 can always be in contact with the non-output side flank 4 a of the lead screw 4 it can. Furthermore, the threaded portion of the second nut member 43 can be brought into contact with the output side flank 4 b of the lead screw 4. As a result, it is possible to absorb the clearance (backlash) between the lead screw 4 and each nut member (screw portion), and to suppress rattling of the movable member 6 in the movement direction (the direction of the axis L).
  • the coil spring 42 is in contact with the movable member 6 (the pair of opposing ribs 12a and 12b) at one end, and is in contact with the second nut member 43 at the other end.
  • the movable member 6 is in contact with the flange portion 41 a of the first nut member 41. Therefore, when the movable member 6 moves to the output side L1 in the direction of the axis L, the thrust of the first nut member 41 is transmitted to the movable member 6 as a driving force through the flange portion 41a, and the movable member 6 is When moving to the non-output side L 2 in the L direction, the driving force is transmitted to the movable member 6 through the first nut member 41 by the biasing force of the coil spring 42.
  • the movable member 6 can move to either the output side L1 in the direction of the axis L or the non-output side L2, and even in that case, as described above, the single coil spring 42 causes rattling of the movable member 6 It can always be suppressed.
  • the nut arranging portion 11 accommodating the nut unit 40 is opened not in the direction (X direction) in which the main body portion 9 and the frame main body 2a face each other but in the direction (Y direction) ing.
  • This is particularly preferable in that the workability at the time of arranging the nut unit 40 in the nut arrangement portion 11 can be improved. That is, when the nut arrangement portion 11 is opened in the direction to face the frame body 2a, the inside of the nut arrangement portion 11 can not be visually confirmed by the frame body 2a, and the nut unit 40 is arranged properly. It becomes difficult to accommodate in the section 11.
  • the frame main body 2a does not get in the way, so the nut unit 40 is disposed at an appropriate position while confirming visually.
  • the nut unit 40 is disposed at an appropriate position while confirming visually.
  • the guide shaft 5 and the lead screw 4 are arranged to overlap in the X direction.
  • the support portion 10 is provided to overlap the guide shaft 5 and the lead screw 4 in the X direction. Therefore, the movement of the movable member 6 can be stabilized.
  • a pair of stoppers 9b and 9c for restricting the rotation of the main body 9 is provided at the lower part of the main body 9, but , 9c can be made approximately equal. Therefore, rattling in the rotational direction of the movable member 6 can be suppressed as much as possible, and the movement of the movable member 6 can be stabilized.
  • the first nut member 41 moves integrally with the main body 9. If it does, it does, it does not necessarily need to be separate from the main body part 9. That is, the first nut member 41 may be physically fixed to the main body 9 by fixing means such as an adhesive, or the first nut member 41 and the main body 9 are integrally formed.
  • the body portion 9 itself may be provided with a female screw portion screwed to the lead screw 4.
  • the head-up display device 1000 of the present disclosure is A display 110 for outputting the display light L and a reflector 130 for reflecting the display light L, and projecting the display light L reflected by the reflector 130 onto the projection member 103 to display a virtual image V
  • a driving device 1 for rotating the reflector 130 includes a drive unit 3 and a movable member 6 moved by the drive force of the drive unit 3;
  • the movable member 6 comprises a main body 9 and a support 10 for supporting the reflector 130,
  • the support portion 10 is provided so as to face the elastic support portion 20 for urging the reflector 130 and the elastic support portion 20 in the moving direction of the movable member 6, and supports the reflector 130 urged by the elastic support portion 20.
  • a fixed support portion 30 By comprising in this way, since the drive apparatus 1 provided with the support part 10 which the positioning accuracy of the reflector 130 improves is provided, the blurring of a display image can be suppressed.
  • the elastic support portion 20 of the head-up display device 1000 of the present disclosure holds the elastic member 21 in contact with the reflector 130 to bias the reflector 130 toward the fixed support portion 30 and the elastic member 21.
  • An elastic member fixing portion 22; The elastic member fixing portion 22 is preferably provided in the main body portion 9. By this configuration, the elastic member 21 can be easily fixed. Moreover, it is preferable that the elastic member 21 is a leaf spring which is easy to manufacture.
  • the elastic member 21 of the head-up display device 1000 of the present disclosure extends from the fixing plate portion 23 attached to the elastic member fixing portion 22 and the end of the fixing plate portion 23, and can be elastically deformed.
  • the elastically deformable plate portion 24 has a first elastic portion 24a extending from an end portion of the fixed plate portion 23 and a second elastic portion 24b extending from an end portion of the first elastic portion 24a. It is preferable that the contact part 25c which contact
  • the contact portion 25c of the head-up display device 1000 of the present disclosure is a bent portion 25b obtained by bending the second elastic portion 24b so that the tip end 25d of the second elastic portion 24b faces the opposite side to the reflector 130.
  • the tip end portion 25d abuts on the elastic member fixing portion 22, and elasticity is achieved. Excessive deformation of the deformation plate portion 24, that is, plastic deformation can be suppressed. Thereby, the reflector 130 can be stably energized.
  • the first elastic portion 24a of the head-up display device 1000 of the present disclosure extends on the extension of the fixed plate portion 23, and the second elastic portion 24b extends at an acute angle with respect to the first elastic portion 24a.
  • the first supporting point 25a is formed between the fixed plate 23 and the first elastic part 24a, and the first supporting point 25a is held by the elastic member fixing part 22 of the elastic member 21.
  • the first elastic portion 24a is elastically deformable with respect to the fixing plate portion 23 with the first fulcrum portion 25a as a fulcrum.
  • the elasticity of the elastically deformable plate portion 24 can be secured.
  • the elastic member fixing portion 22 of the head-up display device 1000 of the present disclosure includes the protruding portion 26 protruding from the main body portion 9 and the restricting portion 27 provided on the protruding portion 26, and the restricting portion 27 protrudes
  • the gap G between the fixing plate portion 23 and the portion 26 is formed, and the movement of the fixing plate portion 23 in the direction (Y direction and axis L direction) intersecting the insertion direction X into the gap G is restricted. Is preferred. By comprising in this way, it can suppress that the position of the elastic member 21 shifts
  • the elastic member fixing portion 22 of the head-up display device 1000 of the present disclosure has a locking portion 26 b provided in the protruding portion 26, and the locking portion 26 b and the fixing plate portion 23 inserted in the gap G It is preferable to engage to restrict movement of the fixing plate portion 23 in the direction opposite to the insertion direction into the gap G. With this configuration, it is possible to suppress the displacement of the position of the elastic member 21.
  • the elastic member fixing portion 22 of the head-up display device 1000 of the present disclosure has a protruding portion 26 protruding from the main body portion 9, and the protruding portion 26 is a relief portion for avoiding interference with the elastic deformation plate portion 24.
  • 26c is formed.
  • the relief portion 26c is a step portion 26c formed in the protrusion portion 26, and the step portion 26c is formed in a corner portion facing the second elastic portion 24b of the protrusion portion 26, and the second elastic portion It is preferable to have a width wider than the width of 24b. With such a configuration, the movable range of the elastic deformation plate portion 24 can be expanded.
  • the elastic member fixing portion 22 of the head-up display device 1000 of the present disclosure includes the protruding portion 26 protruding from the main body portion 9 and the reinforcing rib 26 a connecting the protruding portion 26 and the main body portion 9.
  • the rib 26 a is preferably formed in a plate shape extending toward the fixed support 30 on the side of the protrusion 26 facing the fixed support 30.
  • the fixed support portion 30 of the head-up display device 1000 of the present disclosure is formed of a material having a rigidity higher than that of the main body portion 9 and partially embedded and fixed in the main body portion 9. By configuring in this manner, the strength of the support 10 that supports the reflector 130 can be improved.
  • the fixed support portion 30 of the head-up display device 1000 of the present disclosure supports the reflector 130 at a position facing the reflector 130 in the moving direction of the movable member 6.
  • the fixed support portion 30 of the head-up display device 1000 of the present disclosure extends in the moving direction of the movable member 6 from the end portion of the supporting body portion 31 extending in the direction intersecting the moving direction of the movable member 6.
  • the extension portions 32 and 33 preferably have at least a part of the upper surfaces 32 a and 33 a covered with the main body portion 9.
  • the head-up display device 1000 of the present disclosure is
  • the movable member 6 has a lead screw 4 rotationally driven by the drive unit 3, and the movable member 6 is provided separately from the drive force transmission unit for transmitting the drive force of the drive unit 3 to the main body unit 9 and the main body unit 9.
  • the driving force transmitting unit includes a first screw portion screwed to the lead screw 4 and moves the main body 9 in the axial direction of the lead screw 4 with the rotation of the lead screw 4.
  • the preload applying portion includes a second screw portion screwed to the lead screw 4 and applies a preload between the first screw portion and the second screw portion. With such a configuration, it is possible to absorb the clearance (backlash) between the lead screw 4 and each screw portion and to suppress rattling of the movable member 6 in the movement direction (axial direction of the lead screw 4).
  • the driving force transmission unit of the head-up display device 1000 of the present disclosure includes a first nut member 41 provided with a first screw portion and provided separately from the main body portion 9, and the preload applying unit is And a second nut member 43 having a second screw portion, and a biasing member provided between the first nut member 41 and the second nut member 43,
  • the nut arrangement portion 11 in which the first nut member 41 and the second nut member 43 are arranged is formed, and the rotation of the first nut member 41 and the second nut member 43 with respect to the main body 9 is restricted. It is preferable that it is arrange
  • drive force receiving portions 12a and 12b for receiving the drive force of the drive portion 3 from the first nut member 41 are formed in the nut placement portion 11, and the first nut member 41 is formed of the drive receiving portions 12a and 12b.
  • preload is applied from the biasing member via
  • the biasing member of the head-up display device 1000 of the present disclosure is a coil spring 42
  • the lead screw 4 penetrates the inside of the coil spring 42
  • the biasing member includes driving force receiving portions 12a and 12b.
  • it is disposed between the second nut member 43 and the second nut member 43.
  • the head-up display device of the present disclosure is suitable for a display device that displays vehicle information as a virtual image on the windshield of the vehicle.

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Abstract

Provided is a head-up display device which suppresses blur of displayed images. A head-up display device 1000 according to the present invention is provided with: a display 110 which outputs display light L; a reflector 130 which reflects the display light L; and a drive device 1 which rotates the reflector 130. The drive device 1 comprises: a drive member 3; and a movable member 6 which is moved by the driving force of the drive member 3. The movable member 6 is provided with a support part 10 which supports a member to be supported 132a. The support part 10 comprises: an elastic support part 20 which urges the member to be supported 132a; and a fixed support part 30 which is arranged so as to face the elastic support part 20 in the moving direction L of the movable member 6, and which supports the member to be supported 132a that is urged by the elastic support part 20.

Description

ヘッドアップディスプレイ装置Head-up display device
　本開示は、反射器を回動動作させる駆動装置を有するヘッドアップディスプレイ装置に関する。 The present disclosure relates to a head-up display device having a drive for pivoting a reflector.
　従来、特許文献１に開示されているように、表示素子からの表示光を反射器（凹面鏡）によって反射させて車両のフロントガラスに投影し、投影された表示像（虚像）を車両の運転者に視認させるヘッドアップディスプレイ装置が知られている。このようなヘッドアップディスプレイ装置では、一般に、反射部材による表示光の反射角度を調整するために、凹面鏡を保持するミラーホルダを所定の回転軸を中心として回動させる。 Conventionally, as disclosed in Patent Document 1, the display light from the display element is reflected by a reflector (concave mirror) and projected on the windshield of the vehicle, and the projected display image (virtual image) is the driver of the vehicle There is known a head-up display device that makes In such a head-up display device, generally, in order to adjust the reflection angle of the display light by the reflection member, the mirror holder holding the concave mirror is rotated about a predetermined rotation axis.
特開２０１５－１０２７００号公報JP, 2015-102700, A
　特許文献１に記載のヘッドアップディスプレイ装置では、ミラーホルダの突出片が、一対の樹脂壁により挟持されて保持されている。しかしながら、このような構成では、車両が振動したときに、例えば、ミラーホルダがスライダの移動方向に動く（ガタつく）可能性があり、このミラーホルダの動きにより表示像にブレが発生する可能性がある。 In the head-up display device described in Patent Document 1, the protruding pieces of the mirror holder are held by being held by the pair of resin walls. However, in such a configuration, when the vehicle vibrates, for example, the mirror holder may move (jagger) in the moving direction of the slider, and the movement of the mirror holder may cause a blur in the displayed image. There is.
　そこで、本開示の課題は、表示像のブレを抑制するヘッドアップディスプレイ装置を提供することである。 Then, the subject of this indication is providing the head-up display apparatus which suppresses the blurring of a display image.
　本開示のヘッドアップディスプレイ装置は上述した課題を解決するために、
　表示光を出力する表示器と、前記表示光を反射させる反射器と、を有し、前記反射器によって反射された前記表示光を投影部材に投影して虚像を表示するヘッドアップディスプレイ装置において、
　前記反射器を回動動作させる駆動装置を備え、
　前記駆動装置は、駆動部と、前記駆動部の駆動力によって移動する可動部材と、を有し、
　前記可動部材は、本体部と、前記反射器を支持する支持部と、を備え、
　前記支持部は、前記反射器を付勢する弾性支持部と、前記可動部材の移動方向において前記弾性支持部に対向して設けられ、前記弾性支持部によって付勢された前記反射器を支持する固定支持部と、を有している。 In order to solve the problems described above, the head-up display device of the present disclosure
A head-up display device comprising: a display for outputting display light; and a reflector for reflecting the display light, wherein the display light reflected by the reflector is projected onto a projection member to display a virtual image.
And a drive device for rotating the reflector.
The drive device includes a drive unit, and a movable member moved by the drive force of the drive unit.
The movable member includes a main body and a support that supports the reflector.
The supporting portion is provided with an elastic supporting portion for urging the reflector, and is provided opposite to the elastic supporting portion in the moving direction of the movable member, and supports the reflector urged by the elastic supporting portion. And a fixed support portion.
　本開示によれば、表示像のブレを抑制するヘッドアップディスプレイ装置を提供できる。 According to the present disclosure, it is possible to provide a head-up display device that suppresses blurring of a display image.
本開示の実施の一形態であるヘッドアップディスプレイ装置の概略構成図である。It is a schematic block diagram of the head up display device which is one embodiment of this indication. 図１に示すヘッドアップディスプレイ装置の表示装置の概略断面図である。It is a schematic sectional drawing of the display apparatus of the head-up display apparatus shown in FIG. 本実施形態の駆動装置を示す概略斜視図である。It is a schematic perspective view which shows the drive device of this embodiment. 本実施形態の駆動装置を示す概略側面図である。It is a schematic side view which shows the drive device of this embodiment. 本実施形態の可動部材を拡大して示す概略斜視図である。It is a schematic perspective view which expands and shows the movable member of this embodiment. 本実施形態の弾性部材を示す概略斜視図である。It is a schematic perspective view which shows the elastic member of this embodiment. 本実施形態の弾性部材固定部を示す概略斜視図である。It is a schematic perspective view which shows the elastic member fixing | fixed part of this embodiment. 図７に示す弾性部材固定部を別の方向から見た概略斜視図である。It is the schematic perspective view which looked at the elastic member fixing | fixed part shown in FIG. 7 from another direction. 本実施形態の支持部材を示す概略斜視図である。It is a schematic perspective view which shows the support member of this embodiment. 図５に示す可動部材の透視側面図である。It is a see-through | perspective side view of the movable member shown in FIG. 図５に示す可動部材の透視上面図である。FIG. 6 is a transparent top view of the movable member shown in FIG. 5; 本実施形態の駆動装置を図４とは反対側から見た概略側面図である。It is the schematic side view which looked at the drive device of this embodiment from the opposite side to FIG. 本実施形態のナットユニットの動作を説明するための模式図である。It is a schematic diagram for demonstrating the operation | movement of the nut unit of this embodiment.
　以下、図面を参照して、本開示の実施の形態について説明する。 Hereinafter, embodiments of the present disclosure will be described with reference to the drawings.
　まず、図１および図２を参照して、本開示の実施の形態である車両用のヘッドアップディスプレイ装置について説明する。図１は、本開示の実施の一形態であるヘッドアップディスプレイ装置の概略構成図である。図２は、本開示の実施の一形態のヘッドアップディスプレイ装置における表示装置の概略断面図である。 First, with reference to FIG. 1 and FIG. 2, the head-up display apparatus for vehicles which is embodiment of this indication is demonstrated. FIG. 1 is a schematic configuration diagram of a head-up display device according to an embodiment of the present disclosure. FIG. 2 is a schematic cross-sectional view of a display device in a head-up display device according to an embodiment of the present disclosure.
　ヘッドアップディスプレイ装置１０００は、図１に示すように、車両１００のインストルメントパネル１０１の内部に設けられた表示装置１０２を有し、表示装置１０２が投射する表示光Ｌを投影部材であるフロントガラス１０３で車両１００の運転者１０４の方向に反射させ、虚像（表示像）Ｖの表示を行うものである。換言すると、ヘッドアップディスプレイ装置は、表示装置１０２の後述する液晶表示器１１０から発せられる表示光Ｌをフロントガラス１０３に照射（投射）し、この照射によって得られた虚像Ｖを運転者１０４に視認させるものである。これにより、運転者１０４は、虚像Ｖを風景と重畳させて観察することができる。 As shown in FIG. 1, the head-up display device 1000 has a display device 102 provided inside an instrument panel 101 of the vehicle 100, and is a windshield that is a projection member and displays light L projected by the display device 102. The virtual image (display image) V is displayed by being reflected in the direction of the driver 104 of the vehicle 100 at 103. In other words, the head-up display device irradiates (projects) display light L emitted from the later-described liquid crystal display 110 of the display device 102 to the windshield 103, and the driver 104 visually recognizes the virtual image V obtained by this irradiation. It is Thus, the driver 104 can observe the virtual image V superimposed on the landscape.
　表示装置１０２は、図２に示すように、液晶表示器１１０と、第１の反射器１２０と、第２の反射器１３０と、ハウジング１４０とを有している。 The display device 102 has a liquid crystal display 110, a first reflector 120, a second reflector 130, and a housing 140, as shown in FIG.
　液晶表示器１１０は、光源１１１と、液晶表示素子（表示素子）１１２とを有している。光源１１１は、配線基板Ｒに実装された発光ダイオードからなる。液晶表示素子１１２は、光源１１１からの照明光を透過して表示光Ｌを形成するように光源１１１の前方（真上）に位置する薄膜トランジスタ（ＴＦＴ）型の液晶表示素子である。液晶表示素子１１２は、図示しない素子駆動回路からの駆動信号に基づいて、背後（直下）に配置された光源１１１から発せられる光により、表示すべき情報（例えば、車両の速度やエンジン回転数）を数値等で発光表示するものである。なお、表示すべき情報は、車両の速度やエンジン回転数に限定されず、表示形態としても、数値表示に限定されず、あらゆる形態を採用することができる。液晶表示器１１０は、可視波長域の光からなる表示光Ｌを発するものであり、例えば赤色光（主に発光波長域６１０～６４０ｎｍ）を発する光源１１１を用いることができる。 The liquid crystal display 110 has a light source 111 and a liquid crystal display element (display element) 112. The light source 111 is a light emitting diode mounted on the wiring board R. The liquid crystal display element 112 is a thin film transistor (TFT) type liquid crystal display element positioned in front of (directly above) the light source 111 so as to transmit illumination light from the light source 111 to form display light L. The liquid crystal display element 112 is information to be displayed (for example, the speed of the vehicle or the number of engine revolutions) by light emitted from the light source 111 disposed behind (directly below) based on a drive signal from an element drive circuit (not shown). Is a light emitting display by numerical values and the like. The information to be displayed is not limited to the speed of the vehicle or the number of engine revolutions, and the display form is not limited to the numerical display, and any form can be adopted. The liquid crystal display 110 emits display light L composed of light in the visible wavelength range, and can use, for example, a light source 111 emitting red light (mainly emission wavelength range 610 to 640 nm).
　このような液晶表示器１１０は、表示光Ｌの出射側の面が第１の反射器１２０の後述するコールドミラー１２１に対向するようにハウジング１４０内に設けられ、表示光Ｌの光軸がコールドミラー１２１に交わるような位置や向きで固定保持されている。 Such a liquid crystal display 110 is provided in the housing 140 so that the surface on the emission side of the display light L faces a cold mirror 121 described later of the first reflector 120, and the optical axis of the display light L is cold It is fixed and held at such a position and direction as to intersect the mirror 121.
　第１の反射器１２０は、コールドミラー１２１と、コールドミラー１２１をハウジング１４０に固定するための取付部材１２２とを有している。コールドミラー１２１は、液晶表示器１１０から発せられた表示光Ｌを第２の反射器１３０（凹面鏡１３１）に向けて反射させるものである。コールドミラー１２１は、ほぼ矩形状のガラス基板１２１ａと、ガラス基板１２１ａの片面（第２の反射器１３０の後述する凹面鏡１３１に対向する面）に蒸着等によって形成された、膜厚が異なる多層の干渉膜からなる第１の反射層１２１ｂとを有している。また、取付部材１２２は、例えば黒色の合成樹脂材料からなり、ハウジング１４０に固定されている。 The first reflector 120 has a cold mirror 121 and a mounting member 122 for fixing the cold mirror 121 to the housing 140. The cold mirror 121 is for reflecting the display light L emitted from the liquid crystal display 110 toward the second reflector 130 (concave mirror 131). The cold mirror 121 is formed of a substantially rectangular glass substrate 121 a and a single layer of the glass substrate 121 a (a surface of the second reflector 130 facing the concave mirror 131 described later) by vapor deposition or the like, and has a different thickness. And a first reflective layer 121b made of an interference film. The mounting member 122 is made of, for example, a black synthetic resin material, and is fixed to the housing 140.
　なお、コールドミラー１２１は、液晶表示器１１０の発光波長域を含む可視波長域（４５０～７５０ｎｍ）の光を高い反射率（例えば８０％以上）で反射し、可視波長域以外の光を低い反射率で反射するものである。この場合、コールドミラー１２１としては、可視波長域以外の光、特に赤外波長域の光（赤外線あるいは太陽光の熱線）を低い反射率（例えば１５％以下）で反射するものが適用される。なお、第１の反射層１２１ｂで反射されない光は、コールドミラー１２１を透過するようになっている。本実施形態では、コールドミラー１２１は、液晶表示器１１０と同様に、ハウジング１４０の後述する透光性カバー１４４から直接見えない位置に配置され、太陽光等の外部からの光（外光）が直接当たらないようになっている。 The cold mirror 121 reflects light in the visible wavelength range (450 to 750 nm) including the emission wavelength range of the liquid crystal display 110 at a high reflectance (for example, 80% or more), and reflects light in regions other than the visible wavelength range as low. It reflects at a rate. In this case, as the cold mirror 121, one that reflects light other than the visible wavelength range, particularly light in the infrared wavelength range (infrared rays or heat rays of sunlight) with a low reflectance (for example, 15% or less) is applied. The light which is not reflected by the first reflection layer 121 b is transmitted through the cold mirror 121. In the present embodiment, as in the liquid crystal display 110, the cold mirror 121 is disposed at a position which can not be directly seen from the light-transmissive cover 144 described later of the housing 140, and external light such as sunlight is received. It is designed not to hit directly.
　第２の反射器１３０は、凹面鏡１３１と、凹面鏡１３１を保持するミラーホルダ１３２とを有している。凹面鏡１３１は、ポリカーボネートからなる樹脂基板の凹面に蒸着された第２の反射層１３１ａを有し、コールドミラー１２１（つまり液晶表示素子１１２）からの表示光Ｌを拡大しつつ、ハウジング１４０の透光性カバー１４４を通じてフロントガラス１０３に向けて反射させるものである。凹面鏡１３１は、第２の反射層１３１ａがコールドミラー１２１とハウジング１４０の透光性カバー１４４とに対向するように配置され、透光性カバー１４４から見える位置に配置されている。 The second reflector 130 has a concave mirror 131 and a mirror holder 132 for holding the concave mirror 131. The concave mirror 131 has a second reflection layer 131a deposited on the concave surface of a resin substrate made of polycarbonate, and transmits light of the housing 140 while expanding the display light L from the cold mirror 121 (that is, the liquid crystal display element 112). The light is reflected toward the windshield 103 through the sexing cover 144. The concave mirror 131 is disposed such that the second reflective layer 131 a faces the cold mirror 121 and the translucent cover 144 of the housing 140, and is disposed at a position where it can be seen from the translucent cover 144.
　ミラーホルダ１３２は、合成樹脂材料からなり、ハウジング１４０に設けられた軸受部に軸支された、表示光Ｌの光軸に直交する回転軸Ａを有している。すなわち、ミラーホルダ１３２とこれに保持された凹面鏡１３１は、回転軸Ａを中心として回動可能であり、これにより、ミラーホルダ１３２の角度位置、すなわち表示光Ｌの投射方向を調整することができる。ミラーホルダ１３２には、回転軸Ａの径方向外側に向けて部分的に突出する突出片１３２ａが形成されている。この突出片１３２ａが駆動装置１からの駆動力により移動することで、ミラーホルダ１３２を回動させることができる。駆動装置１の詳細については後述する。 The mirror holder 132 is made of a synthetic resin material, and has a rotation axis A that is axially supported by a bearing provided in the housing 140 and that is orthogonal to the optical axis of the display light L. That is, the mirror holder 132 and the concave mirror 131 held thereby are rotatable around the rotation axis A, whereby the angular position of the mirror holder 132, that is, the projection direction of the display light L can be adjusted. . The mirror holder 132 is formed with a protruding piece 132 a that partially protrudes outward in the radial direction of the rotation axis A. The mirror holder 132 can be rotated by moving the protruding piece 132 a by the driving force from the drive device 1. The details of the driving device 1 will be described later.
　ハウジング１４０は、例えばアルミダイカストで形成され、いずれも断面がほぼＵ字形状の上側ケース体１４１と下側ケース体１４２とを有している。上側ケース体１４１と下側ケース体１４２とは内部空間１４３を形成し、この内部空間１４３に、液晶表示器１１０、第１の反射器１２０、および第２の反射器１３０が収納されている。 The housing 140 is formed of, for example, an aluminum die-cast, and each has an upper case body 141 and a lower case body 142 each having a substantially U-shaped cross section. The upper case body 141 and the lower case body 142 form an internal space 143, and the liquid crystal display 110, the first reflector 120, and the second reflector 130 are accommodated in the internal space 143.
　上側ケース体１４１には、凹面鏡１３１に対向する位置に開口部１４１ａが形成され、この開口部１４１ａを塞ぐように透光性カバー１４４が配置されている。透光性カバー１４４は、透光性の合成樹脂材料（例えばアクリル樹脂）からなり、凹面鏡１３１で反射された表示光Ｌが透過（通過）する光透過性部材としての機能を有している。つまり、凹面鏡１３１によって反射された表示光Ｌは、ハウジング１４０に設けられた透光性カバー１４４を通じてフロントガラス１０３に投影され、これにより虚像Ｖの表示が行われる。 In the upper case body 141, an opening 141a is formed at a position facing the concave mirror 131, and a translucent cover 144 is disposed so as to close the opening 141a. The translucent cover 144 is made of a translucent synthetic resin material (for example, acrylic resin), and has a function as a light transmitting member through which the display light L reflected by the concave mirror 131 passes (passes). That is, the display light L reflected by the concave mirror 131 is projected onto the front glass 103 through the translucent cover 144 provided on the housing 140, whereby the display of the virtual image V is performed.
　次に、図３および図４を参照して、本実施形態の駆動装置について説明する。図３は、本実施形態の駆動装置を示す概略斜視図であり、図４は、本実施形態の駆動装置を示す概略側面図であり、ミラーホルダの突出片を支持した状態を示している。なお、以下の説明では、リードスクリュー４（シャフト１９）の軸線Ｌが延在している方向のうち、リードスクリュー４が突出している一方側を出力側Ｌ１とし、リードスクリュー４が突出している側とは反対側（他方側）を反出力側Ｌ２とする。また、軸線Ｌ方向に対して、フレーム２の支持部２ｃ，２ｂが延在する方向をＸ方向とし、Ｘ方向と軸線Ｌ方向に対して直交する方向をＹ方向とする。 Next, with reference to FIG. 3 and FIG. 4, the drive device of the present embodiment will be described. FIG. 3 is a schematic perspective view showing the drive device of the present embodiment, and FIG. 4 is a schematic side view showing the drive device of the present embodiment, showing a state in which the projecting piece of the mirror holder is supported. In the following description, in the direction in which the axis L of the lead screw 4 (shaft 19) extends, one side from which the lead screw 4 protrudes is the output side L1, and the side from which the lead screw 4 protrudes. And the opposite side (the other side) to the non-output side L2. In addition, the direction in which the support portions 2c and 2b of the frame 2 extend with respect to the direction of the axis L is taken as an X direction, and the direction orthogonal to the X direction and the direction of the axis L is taken as a Y direction.
　駆動装置１は、外周面に螺旋溝が形成されたリードスクリュー４と、リードスクリュー４を軸線Ｌ周りに回転駆動するための駆動部３と、螺旋溝に係合して軸線Ｌ方向に移動する可動部材６と、駆動部３等を支持するフレーム２を備えている。フレーム２には、リードスクリュー４に対して軸線Ｌ方向に沿って平行に配置されたガイドシャフト５が固定されている。駆動部３は、ステッピングモータ等のモータであり、モータケースを構成するステータ１４とステータ１４の内部に配置されたロータ（図示せず）から概ね構成されている。ロータは、シャフト１９とシャフト１９に固定された永久磁石（図示せず）を備えている。 The driving device 1 moves in the direction of the axis L by engaging the spiral groove with a lead screw 4 having a helical groove formed on the outer peripheral surface, a drive unit 3 for rotationally driving the lead screw 4 around the axis L The movable member 6 and the frame 2 for supporting the drive unit 3 and the like are provided. A guide shaft 5 disposed parallel to the lead screw 4 along the axis L direction is fixed to the frame 2. The driving unit 3 is a motor such as a stepping motor, and generally includes a stator 14 constituting a motor case and a rotor (not shown) disposed inside the stator 14. The rotor comprises a shaft 19 and a permanent magnet (not shown) fixed to the shaft 19.
　ステータ１４は、フレーム２の軸線Ｌ方向の反出力側Ｌ２の支持部２ｂに溶接などにより固定されている。この支持部２ｂには、給電基板７０を保持する基板ホルダ６０がボルトによって固定されている。 The stator 14 is fixed by welding or the like to the support portion 2 b on the non-output side L 2 in the direction of the axis L of the frame 2. A substrate holder 60 for holding the power supply substrate 70 is fixed to the support portion 2 b by a bolt.
　ステータ１４の側面には給電部となる端子ピン８２が設けられており、給電基板７０と電気的に接続されている。端子ピン８２には、ステータ１４の駆動コイルの端末部分（図示せず）が巻き付けられており、端子ピン８２と給電基板７０をはんだ付けすることで、給電基板８０と駆動コイルとの電気的な接続を行うことができる。 Terminal pins 82 serving as a feeding portion are provided on side surfaces of the stator 14 and are electrically connected to the feeding substrate 70. A terminal portion (not shown) of the drive coil of the stator 14 is wound around the terminal pin 82, and the terminal pin 82 and the feed substrate 70 are soldered to electrically connect the feed substrate 80 and the drive coil. You can make a connection.
　給電基板７０にはスイッチユニット５０が取り付けられている。スイッチユニット５０は、可動部材６の移動方向（軸線Ｌ方向）の原点位置を検出する押圧式のスイッチである。スイッチユニット５０と給電基板７０との電気的な接続は、スイッチユニット５０の端子ピン５２ａ，５２ｂと給電基板７０とをはんだ付けすることで行われる。 The switch unit 50 is attached to the feed substrate 70. The switch unit 50 is a press-type switch that detects an origin position of the movable member 6 in the movement direction (the direction of the axis L). The electrical connection between the switch unit 50 and the feed substrate 70 is achieved by soldering the terminal pins 52 a and 52 b of the switch unit 50 and the feed substrate 70.
　フレーム２は、板状のフレーム本体２ａと、フレーム本体２ａの長手方向の両端が折り曲げられて形成された一対の支持部２ｂ，２ｃとを有し、フレーム本体２ａに形成された穴２ｇを利用してハウジング１４０に固定されている。駆動部３は、軸線Ｌ方向の反出力側Ｌ２の支持部２ｂに固定されている。 The frame 2 has a plate-like frame main body 2a, and a pair of support portions 2b and 2c formed by bending both ends in the longitudinal direction of the frame main body 2a, and utilizing a hole 2g formed in the frame main body 2a And fixed to the housing 140. The drive part 3 is being fixed to the support part 2b of the non-output side L2 of an axis L direction.
　リードスクリュー４は、駆動部３のシャフト１９と一体に形成されており、シャフト１９の一部（ステータ１４から軸線Ｌ方向の出力側Ｌ１に突出している部分）の外周面に螺旋溝を形成することで構成されている。したがって、リードスクリュー４は、駆動部３によって回転駆動されるものである。リードスクリュー４は、フレーム本体２ａと略平行に配置され、軸線Ｌ方向の出力側Ｌ１の先端が、フレーム２の軸線Ｌ方向の出力側Ｌ１の支持部２ｃに設けられた軸受７ａによって回転可能に支持されている。また、シャフト１９の軸線Ｌ方向の反出力側Ｌ２の端部は、駆動部３に取り付けられた軸受７ｂによって回転可能に支持され、その先端は、板ばねからなる付勢部材７ｃによって軸線Ｌ方向の出力側Ｌ１に付勢されている。ガイドシャフト５は、リードスクリュー４と平行に配置され、その両端がフレーム２の支持部２ｂ，２ｃにそれぞれ固定されている。本実施形態では、ガイドシャフト５とリードスクリュー４がＸ方向で重なるよう配置されている。 The lead screw 4 is integrally formed with the shaft 19 of the drive unit 3 and forms a spiral groove on the outer peripheral surface of a portion of the shaft 19 (a portion projecting from the stator 14 to the output side L1 in the axis L direction). Is made up of Therefore, the lead screw 4 is rotationally driven by the drive unit 3. The lead screw 4 is disposed substantially in parallel with the frame body 2a, and the end of the output side L1 in the direction of the axis L can be rotated by a bearing 7a provided on the support portion 2c of the output side L1 in the direction of the axis L of the frame 2. It is supported. Further, the end of the non-output side L2 in the direction of the axis L of the shaft 19 is rotatably supported by the bearing 7b attached to the drive unit 3, and the tip thereof is in the direction of the axis L by the biasing member 7c formed of a plate spring. Is biased to the output L1 of the The guide shaft 5 is disposed in parallel to the lead screw 4, and both ends thereof are fixed to the support portions 2 b and 2 c of the frame 2, respectively. In the present embodiment, the guide shaft 5 and the lead screw 4 are arranged to overlap in the X direction.
　可動部材６は、リードスクリュー４に噛み合って軸線Ｌ方向に移動するナットユニット４０と、ナットユニット４０と一体に軸線Ｌ方向に移動する本体部９と、本体部９の上方に設けられ、被支持材であるミラーホルダ１３２の突出片１３２ａを支持する支持部１０とを備えている。本体部９には、ガイドシャフト５が貫通するガイド孔８と、ナットユニット４０が配置されるナット配置部１１が形成されている。可動部材６は、駆動部３によるリードスクリュー４の回転に伴い、ナットユニット４０が軸線Ｌ方向に往復移動することで、ガイドシャフト５にガイドされた状態で軸線Ｌ方向に往復移動する。これにより、突出片１３２ａが軸線Ｌ方向に往復移動することで、回転軸Ａ（図２参照）を中心としてミラーホルダ１３２を所定の角度に回動させることができる。 The movable member 6 is provided on a nut unit 40 engaged with the lead screw 4 to move in the direction of the axis L, a main body 9 moving integrally with the nut unit 40 in the direction of the axis L, and above the main body 9 And a supporting portion 10 for supporting the projecting piece 132a of the mirror holder 132 which is a material. The main body portion 9 is formed with a guide hole 8 through which the guide shaft 5 passes and a nut arrangement portion 11 in which a nut unit 40 is arranged. The movable member 6 reciprocates in the direction of the axis L while being guided by the guide shaft 5 as the nut unit 40 reciprocates in the direction of the axis L along with the rotation of the lead screw 4 by the drive unit 3. Thus, the protrusion 132a reciprocates in the direction of the axis L, whereby the mirror holder 132 can be rotated at a predetermined angle around the rotation axis A (see FIG. 2).
　（支持部）
　支持部１０は、ミラーホルダ１３２の突出片１３２ａを軸線Ｌ方向の反出力側Ｌ２に付勢する弾性支持部２０と、軸線Ｌ方向の反出力側Ｌ２で弾性支持部２０に対向して設けられ、弾性支持部２０によって付勢される突出片１３２ａを支持する固定支持部３０とを有している。このような構成によれば、突出片１３２ａは、弾性支持部２０によって常に固定支持部３０に押し付けられた状態で支持されることになる。そのため、固定支持部３０を基準として常に突出片１３２ａの位置を決めることができ、例えば移動や振動があっても、突出片１３２ａの位置をずれにくくすることができる。それと同時に、弾性支持部２０の付勢力により、車両が振動した場合にも突出片１３２ａがガタつくのを抑制することができ、表示像にブレが発生することを抑制することができる。こうして、本実施形態の支持部１０は、ミラーホルダ１３２の突出片１３２ａの位置決め精度を向上させることができる。 (Support part)
The support portion 10 is provided to be opposed to the elastic support portion 20 on the non-output side L2 in the axis L direction, and the elastic support portion 20 that biases the projecting piece 132a of the mirror holder 132 on the anti-output side L2 in the axis L direction. And a fixed support 30 for supporting the projecting piece 132 a biased by the elastic support 20. According to such a configuration, the projecting piece 132a is supported by the elastic support portion 20 while being always pressed against the fixed support portion 30. Therefore, the position of the protruding piece 132a can always be determined based on the fixed support portion 30, and the position of the protruding piece 132a can be made difficult to shift even if there is movement or vibration, for example. At the same time, the biasing force of the elastic support portion 20 can suppress the rattling of the protruding piece 132a even when the vehicle vibrates, and can suppress the occurrence of blurring in the display image. Thus, the support portion 10 of the present embodiment can improve the positioning accuracy of the protruding piece 132 a of the mirror holder 132.
　弾性支持部２０は、ミラーホルダ１３２の突出片１３２ａに当接して突出片１３２ａを固定支持部３０に向けて付勢する弾性部材２１と、弾性部材２１を固定する弾性部材固定部２２とを有している。弾性部材固定部２２は、ポリアセタールなどの合成樹脂材料からなり、本体部９と一体に設けられている。なお、弾性部材固定部２２は、本体部９と別体として形成された後、接着などの方法で本体部９に固定されていてもよい。 The elastic support portion 20 has an elastic member 21 which abuts on the projection piece 132a of the mirror holder 132 and biases the projection piece 132a toward the fixed support portion 30, and an elastic member fixing portion 22 which fixes the elastic member 21. doing. The elastic member fixing portion 22 is made of a synthetic resin material such as polyacetal and is provided integrally with the main body portion 9. The elastic member fixing portion 22 may be fixed to the main body portion 9 by a method such as adhesion after being formed separately from the main body portion 9.
　固定支持部３０は、ステンレスなどの金属からなり、樹脂からなる本体部９よりも剛性の高い材料で形成されている。固定支持部３０は、インサート成形により本体部９と一体に形成されている。したがって、固定支持部３０は、本体部９に部分的に埋め込まれて固定されている。このような構成により、固定支持部３０が樹脂で本体部９と一体に形成される場合に比べて、固定支持部３０の強度を向上させることができる。その結果、ヘッドアップディスプレイ装置１０００全体として共振周波数を高くすることができ、車両の振動による共振の発生を抑制し、表示像にブレが発生することを抑制することができる。 The fixed support portion 30 is made of metal such as stainless steel, and is formed of a material having rigidity higher than that of the main body portion 9 made of resin. The fixed support portion 30 is integrally formed with the main body portion 9 by insert molding. Therefore, the fixed support 30 is partially embedded and fixed in the main body 9. With such a configuration, the strength of the fixed support portion 30 can be improved as compared with the case where the fixed support portion 30 is integrally formed of the resin with the main body portion 9. As a result, the resonance frequency of the head-up display device 1000 as a whole can be increased, generation of resonance due to vehicle vibration can be suppressed, and generation of blurring in a display image can be suppressed.
　（弾性支持部）
　図５から図８を参照して、本実施形態の弾性支持部の詳細な構成について説明する。図５は、本実施形態の可動部材を拡大して示す概略斜視図である。なお、簡単のために、図５では、ナットユニットの図示は省略している。図６は、本実施形態の弾性部材を示す概略斜視図である。図７は、本実施形態の弾性部材固定部を示す概略斜視図であり、図８は、図７に示す弾性部材固定部を別の方向から見た概略斜視図である。なお、簡単のために、図７および図８では、固定支持部の図示を省略している。 (Elastic support)
The detailed configuration of the elastic support portion of the present embodiment will be described with reference to FIGS. 5 to 8. FIG. 5 is a schematic perspective view showing the movable member of the present embodiment in an enlarged manner. The nut unit is not shown in FIG. 5 for the sake of simplicity. FIG. 6 is a schematic perspective view showing the elastic member of the present embodiment. FIG. 7 is a schematic perspective view showing the elastic member fixing portion of the present embodiment, and FIG. 8 is a schematic perspective view of the elastic member fixing portion shown in FIG. 7 as viewed from another direction. In addition, in FIG. 7 and FIG. 8, illustration of a fixed support part is abbreviate | omitted for simplicity.
　弾性部材２１は、図６に示すように、弾性部材固定部２２に取り付けられて固定される固定板部２３と、固定板部２３の端部から延び、弾性変形可能な弾性変形板部２４とを有している。本実施形態における弾性部材２１は、比較的広い幅（Ｙ方向の長さ）を有する板ばねである。固定板部２３には、弾性部材固定部２２の第２の係止部２６ｂと係止する第１の係止部２３ａが形成されており、本実施形態における第１の係止部２３ａは、Ｘ方向に長い開口部である。弾性変形板部２４は、固定板部２３の端部から延びる第１の弾性部２４ａと、第１の弾性部２４ａの端部から軸線Ｌ方向の反出力側Ｌ２へ斜めに延びる第２の弾性部２４ｂとから構成されている。第１の弾性部２４ａは、固定板部２３の延長線上（固定板部２３が延在するＸ方向）に延び、第２の弾性部２４ｂは、第１の弾性部２４ａに対して鋭角に延びている。固定板部２３と第１の弾性部２４ａとの間には第１の支点部２５ａが形成されている。第１の支点部２５ａは、図５に示すように、弾性部材２１と弾性部材固定部２２の上端との接触部として規定されている。換言すると、第１の支点部２５ａは、弾性部材２１の弾性部材固定部２２に保持されている領域と弾性部材固定部２２に保持されていない領域との境界部として規定されている。第１の弾性部２４ａは、この第１の支点部２５ａを支点として、固定板部２３に対して弾性変形可能である。また、第１の弾性部２４ａと第２の弾性部２４ｂとの間には、弾性変形板部２４の折り曲げ部である第２の支点部２５ｂが形成され、これを支点として、第２の弾性部２４ｂは、第１の弾性部２４ａに対して弾性変形可能である。 The elastic member 21 is, as shown in FIG. 6, a fixing plate portion 23 attached and fixed to the elastic member fixing portion 22, and extends from an end portion of the fixing plate portion 23 to be elastically deformable and elastically deformable plate portion 24. have. The elastic member 21 in the present embodiment is a leaf spring having a relatively wide width (length in the Y direction). The fixing plate portion 23 is formed with a first locking portion 23 a that locks with the second locking portion 26 b of the elastic member fixing portion 22, and the first locking portion 23 a in the present embodiment is It is an opening long in the X direction. The elastically deformable plate portion 24 includes a first elastic portion 24a extending from an end portion of the fixed plate portion 23, and a second elastic portion extending obliquely from the end portion of the first elastic portion 24a to the non-output side L2 in the axis L direction. And 24b. The first elastic portion 24a extends on the extension of the fixed plate portion 23 (X direction in which the fixed plate portion 23 extends), and the second elastic portion 24b extends at an acute angle with respect to the first elastic portion 24a. ing. A first fulcrum portion 25a is formed between the fixed plate portion 23 and the first elastic portion 24a. As shown in FIG. 5, the first support point portion 25 a is defined as a contact portion between the elastic member 21 and the upper end of the elastic member fixing portion 22. In other words, the first supporting point 25 a is defined as a boundary between the area held by the elastic member fixing portion 22 of the elastic member 21 and the area not held by the elastic member fixing portion 22. The first elastic portion 24 a is elastically deformable with respect to the fixed plate portion 23 with the first supporting point 25 a as a supporting point. Further, a second fulcrum portion 25b which is a bent portion of the elastic deformation plate portion 24 is formed between the first elastic portion 24a and the second elastic portion 24b, and the second elastic portion is used as a fulcrum. The portion 24 b is elastically deformable with respect to the first elastic portion 24 a.
　さらに、弾性変形板部２４の第２の弾性部２４ｂは、その先端側が固定板部２３側を向くように折り曲げられている。この折り曲げ部は、ミラーホルダ１３２の突出片１３２ａに当接する突出片当接部２５ｃとして機能する。また、突出片当接部２５ｃは、折り曲げられて湾曲面を構成しているため、突出片１３２ａを支持する際の引っかかりを抑制することができる。なお、突出片当接部２５ｃは、突出片１３２ａに対して引っ掛かりがなく、突出片１３２ａがスムースに移動できるような形状であればよく、湾曲面の代わりに、面取りされた形状であってもよい。さらに、折り曲げられた先端は、弾性変形板部２４が大きく弾性変形したときに弾性部材固定部２２に当接する固定部当接部２５ｄとして機能する。固定部当接部２５ｄは、例えば、車両の衝突などに起因して弾性変形板部２４に大きな衝撃が作用した場合にも、弾性部材固定部２２に当接することで、弾性変形板部２４の過度な変形、すなわち塑性変形を抑制することができる。なお、第２の弾性部２４ｂの形状は、図示した例に限定されず、例えば、円弧形状やＳ字形状であってもよい。 Furthermore, the second elastic portion 24b of the elastically deformable plate portion 24 is bent so that the tip end side thereof faces the fixed plate portion 23 side. The bent portion functions as a projecting piece abutting portion 25 c that abuts on the projecting piece 132 a of the mirror holder 132. Moreover, since the protrusion piece contact part 25c is bend | folded and comprises the curved surface, it can suppress the hook at the time of supporting the protrusion piece 132a. The protruding piece contact portion 25c may have any shape that does not catch on the protruding piece 132a and allows the protruding piece 132a to move smoothly, and may have a chamfered shape instead of a curved surface. Good. Furthermore, the bent tip functions as a fixing portion contact portion 25d that abuts on the elastic member fixing portion 22 when the elastic deformation plate portion 24 undergoes large elastic deformation. The fixing portion contact portion 25 d is in contact with the elastic member fixing portion 22 even when a large impact acts on the elastic deformation plate portion 24 due to, for example, a collision of a vehicle. Excessive deformation, that is, plastic deformation can be suppressed. The shape of the second elastic portion 24b is not limited to the illustrated example, and may be, for example, an arc shape or an S-shape.
　弾性部材固定部２２は、図７および図８に示すように、本体部９からＸ方向に突出する突出部２６と、突出部２６の突出方向（Ｘ方向）の先端かつ幅方向（Ｙ方向）の両端に設けられた一対の規制部２７とを有している。突出部２６と本体部９との間には、突出部２６と本体部９とを接続する補強リブ２６ａが設けられている。補強リブ２６ａは、弾性部材固定部２２に対して負荷がかかったときに強度的に最も弱い部分を補強するために設けられている。すなわち、弾性部材固定部２２には反出力側Ｌ２から出力側Ｌ１に向かって軸線Ｌ方向に負荷がかかるが、その場合、強度的に最も弱く、最も破断しやすい部分は、突出部２６の反出力側Ｌ２の付け根部分である。補強リブ２６ａは、この部分に設けられ、負荷がかかる方向（軸線Ｌ方向）に延びる板状に形成されている。一対の規制部２７は、突出部２６の軸線Ｌ方向の出力側Ｌ１の面に形成され、その面との間に、弾性部材２１の厚みとほぼ同じ間隔を有し、弾性部材２１が挿入される隙間Ｇを形成している。各規制部２７は、突出部２６の出力側Ｌ１の面から軸線Ｌ方向に突出する側方規制部２７ａと、側方規制部２７ａからＹ方向に沿って内側に延びる後方規制部２７ｂとを有している。側方規制部２７ａは、隙間Ｇに挿入された弾性部材２１の固定板部２３のＹ方向の移動を規制し、後方規制部２７ｂは、固定板部２３の軸線Ｌ方向の移動を規制する。こうして、弾性部材２１は、隙間Ｇに挿入された固定板部２３の挿入方向と交差する方向（Ｙ方向および軸線Ｌ方向）への移動が規制されて、弾性部材固定部２２に取り付けられることになる。 The elastic member fixing portion 22 is, as shown in FIGS. 7 and 8, a protrusion 26 protruding in the X direction from the main body 9 and a tip in the protrusion direction (X direction) of the protrusion 26 and a width direction (Y direction) And a pair of regulating portions 27 provided at both ends of the Between the protrusion 26 and the main body 9, a reinforcing rib 26 a that connects the protrusion 26 and the main body 9 is provided. The reinforcing rib 26 a is provided to reinforce the weakest portion when the elastic member fixing portion 22 is loaded. That is, a load is applied to the elastic member fixing portion 22 in the direction of the axis L from the non-output side L2 toward the output side L1. In that case, the weakest in strength and the most likely to break is the opposite side of the protrusion 26 It is a root portion of the output side L2. The reinforcing rib 26a is provided in this portion, and is formed in a plate shape extending in the direction of the load (the direction of the axis L). The pair of restricting portions 27 are formed on the surface of the output side L1 in the direction of the axis L of the projecting portion 26, and between the surfaces, the space having substantially the same thickness as the elastic member 21 is inserted. The gap G is formed. Each restricting portion 27 has a side restricting portion 27a protruding in the direction of the axis L from the surface of the output side L1 of the projecting portion 26, and a rear restricting portion 27b extending inward along the Y direction from the side restricting portion 27a. doing. The side restricting portion 27 a restricts the movement of the fixing plate portion 23 of the elastic member 21 inserted in the gap G in the Y direction, and the rear restricting portion 27 b restricts the movement of the fixing plate portion 23 in the axis L direction. Thus, movement of the elastic member 21 in the direction (Y direction and axis L direction) intersecting the insertion direction of the fixing plate portion 23 inserted in the gap G is restricted, and the elastic member 21 is attached to the elastic member fixing portion 22. Become.
　さらに、突出部２６の軸線Ｌ方向の出力側Ｌ１の面には、固定板部２３に形成された第１の係止部２３ａと係止する第２の係止部２６ｂが形成されている。第２の係止部２６ｂは、いわゆるスナップフィット形状を有し、Ｘ方向の上側に、突出部２６の軸線Ｌ方向の出力側Ｌ１の面に対して傾斜する案内面２６ｄを有し、Ｘ方向の下側に、突出部２６の軸線Ｌ方向の出力側Ｌ１の面にほぼ垂直な係止面２６ｅを有している。固定板部２３が隙間Ｇに挿入されて第１の係止部（開口部）２３ａが係止面２６ｅに係止されることにより、固定板部２３のＸ方向への移動も規制することができ、固定板部２３の抜け止めも行うことができる。なお、固定板部２３が隙間Ｇに挿入されて固定されたときに、弾性部材２１の弾性部材固定部２２に保持されている領域と弾性部材固定部２２に保持されていない領域との境界部が、上述した第１の支点部２５ａとなる。 Furthermore, on the surface of the output side L1 in the direction of the axis L of the projecting portion 26, a second locking portion 26b that locks with the first locking portion 23a formed on the fixing plate portion 23 is formed. The second locking portion 26b has a so-called snap fit shape, and has a guide surface 26d inclined with respect to the surface of the output side L1 in the axis L direction of the projecting portion 26 on the upper side in the X direction. On the lower side, a locking surface 26e substantially perpendicular to the surface of the output side L1 in the direction of the axis L of the protrusion 26 is provided. The movement of the fixed plate portion 23 in the X direction is also restricted by inserting the fixed plate portion 23 into the gap G and locking the first locking portion (opening portion) 23a to the locking surface 26e. It is possible to prevent the fixing plate portion 23 from coming off. In addition, when the fixed plate portion 23 is inserted into the gap G and fixed, a boundary portion between the region held by the elastic member fixed portion 22 of the elastic member 21 and the region not held by the elastic member fixed portion 22. Is the first fulcrum 25a described above.
　突出部２６の軸線Ｌ方向の反出力側Ｌ２の面には、Ｘ方向の先端に段差部２６ｃが形成されている。段差部２６ｃは、弾性変形板部２４の第２の弾性部２４ｂの幅よりも広い幅（Ｙ方向の長さ）を有している。これにより、段差部２６ｃは、弾性変形板部２４の第２の弾性部２４ｂとの干渉を回避する逃げ部として機能することができ、弾性変形板部２４の可動範囲を広げることができる。換言すると、段差部２６ｃは、突出部２６の第２の弾性部２４ｂに対向する角部に位置しており、弾性変形板部２４が撓んだときに第２の弾性部２４ｂがその角部に当たらないようになっている。また、段差部２６ｃのＸ方向の下側には、弾性変形板部２４の固定部当接部２５ｄが当接することができる受け面２６ｆが形成されており、すなわち、固定部当接部２５ｄが段差部２６ｃに当たらないようになっている。これにより、弾性変形板部２４の回動範囲を稼ぐことができる。 A step 26 c is formed at the tip of the X direction on the surface of the protrusion 26 opposite to the output side L 2 in the direction of the axis L. The stepped portion 26 c has a width (length in the Y direction) wider than the width of the second elastic portion 24 b of the elastically deformable plate portion 24. Thereby, the step portion 26c can function as a relief portion for avoiding interference with the second elastic portion 24b of the elastic deformation plate portion 24, and the movable range of the elastic deformation plate portion 24 can be expanded. In other words, the step portion 26c is located at the corner of the protrusion 26 facing the second elastic portion 24b, and when the elastic deformation plate portion 24 is bent, the second elastic portion 24b is located at the corner It is supposed not to hit you. Further, on the lower side in the X direction of the step portion 26c, a receiving surface 26f is formed which can be in contact with the fixing portion contact portion 25d of the elastic deformation plate portion 24, that is, the fixing portion contact portion 25d is It does not hit the step 26c. Thereby, the rotation range of the elastic deformation board part 24 can be earned.
　図示した例では、弾性部材２１は、弾性部材固定部２２の軸線Ｌ方向の出力側Ｌ１の面に取り付けられているが、軸線Ｌ方向の反出力側Ｌ２の面に取り付けられていてもよく、その取り付け方法も、図示したようなスナップフィット方式に限定されず、例えば、ネジや接着材等を用いることができる。また、弾性部材２１としては、ミラーホルダ１３２の突出片１３２ａを固定支持部３０に向けて付勢するようになっていればよく、板ばねに限定されるものではない。例えば、コイルばねなどの他のばね部材であってもよく、あるいは、ゴムなどの弾性を有する材料から構成されたものであってもよい。 In the illustrated example, the elastic member 21 is attached to the surface of the output side L1 in the direction of the axis L of the elastic member fixing portion 22, but may be attached to the surface of the non-output side L2 in the direction of the axis L, The attachment method is also not limited to the snap fit method as illustrated, and for example, a screw, an adhesive, or the like can be used. Further, as the elastic member 21, it is only required to bias the protruding piece 132 a of the mirror holder 132 toward the fixed support portion 30, and it is not limited to a plate spring. For example, it may be another spring member such as a coil spring, or may be made of an elastic material such as rubber.
　（固定支持部）
　次に、図５に加えて、図９から図１１を参照して、本実施形態の固定支持部の詳細な構成について説明する。図９は、本実施形態の固定支持部を示す概略斜視図である。図１０および図１１はそれぞれ、図５に示す可動部材の透視側面図および透視上面図である。 (Fixed support)
Next, in addition to FIG. 5, the detailed configuration of the fixed support portion of the present embodiment will be described with reference to FIGS. 9 to 11. FIG. 9 is a schematic perspective view showing the fixed support portion of the present embodiment. 10 and 11 are respectively a perspective side view and a perspective top view of the movable member shown in FIG.
　固定支持部３０は、図９に示すように、支持本体部３１と、一対の延在部３２，３３と、一対のアーム部３４，３５と有している。支持本体部３１は、Ｘ方向に延び、一対の延在部３２，３３は、支持本体部３１の端部から軸線Ｌ方向（可動部材６の移動方向）に延び、一対のアーム部３４，３５は、支持本体部３１のＹ方向の両端部から概ね軸線Ｌ方向に延びている。 As shown in FIG. 9, the fixed support 30 includes a support body 31, a pair of extending portions 32 and 33, and a pair of arms 34 and 35. The supporting body 31 extends in the X direction, and the pair of extending portions 32 and 33 extend from the end of the supporting body 31 in the direction of the axis L (the moving direction of the movable member 6). Extends substantially in the direction of the axis L from both ends of the support body 31 in the Y direction.
　支持本体部３１には、軸線Ｌ方向の出力側Ｌ１に対向する弾性支持部２０に向かって突出する支持突起３１ａが形成されている。この支持突起３１ａによって、弾性支持部２０によって付勢されるミラーホルダ１３２の突出片１３２ａを支持することができる。また、支持突起３１ａは、半球状に形成されている。これにより、可動部材６の移動によりミラーホルダ１３２の突出片１３２ａの傾きが大きく変化する場合にも、突出片１３２ａを同じように支持することができる。ただし、支持突起３１ａは、先端が曲面であればよく、図示した形状に限定されるものではない。 The support main body portion 31 is formed with a support protrusion 31 a that protrudes toward the elastic support portion 20 facing the output side L1 in the axis L direction. The support protrusion 31 a can support the projecting piece 132 a of the mirror holder 132 biased by the elastic support portion 20. Further, the support protrusions 31a are formed in a hemispherical shape. Thus, even when the inclination of the projecting piece 132a of the mirror holder 132 is largely changed by the movement of the movable member 6, the projecting piece 132a can be supported in the same manner. However, the support protrusion 31a may have a curved tip at the tip, and is not limited to the illustrated shape.
　支持本体部３１は、各延在部３２，３３の少なくとも上面３２ａ，３３ａが本体部９で覆われて保持されている。これにより、本体部９に対する固定支持部３０のＸ方向の抜け止めを確実にすることができる。 In the support main body portion 31, at least the upper surfaces 32a and 33a of the extension portions 32 and 33 are covered and held by the main body portion 9. This makes it possible to reliably prevent the fixing support portion 30 from coming off with respect to the main body portion 9 in the X direction.
　さらに、支持本体部３１は、軸線Ｌ方向の反出力側Ｌ２の下端部（軸線Ｌ方向において延在部３２，３３と反対側の部分）３１ｂが本体部９の保持固定部９ａで覆われて保持されている。これにより、Ｘ方向の抜け止めだけでなく、軸線Ｌ方向への固定支持部３０の抜け止めも確実にすることができる。 Furthermore, in the supporting main body portion 31, the lower end portion (a portion on the opposite side of the extending portions 32 and 33 in the axis L direction) 31 b of the lower output side L 2 in the axis L direction is covered It is held. As a result, not only the retaining in the X direction but also the retaining of the fixed support portion 30 in the direction of the axis L can be assured.
　なお、本体部９には、可動部材６の移動を案内するためのガイドシャフト５が嵌るガイド孔８が形成されている。一対の延在部３２，３３は、このガイド孔８と重ならないように本体部９内に配置されている。支持本体部３１には、切り欠き部３１ｃが形成され、切り欠き部３１ｃとガイド孔８とが軸線Ｌ方向で重なるように配置されており、一対の延在部３２，３３は、この切り欠き部３１ｃによってＹ方向に２つに分割された支持本体部３１の下端部からそれぞれ軸線Ｌ方向に延びている。また、一対の延在部３２，３３は、本体部９内のガイド孔８のＹ方向の両側で、ガイド孔８と平行に配置されているとともに、Ｘ方向において一部がガイド孔８と重なって配置されている。こうして、限られたスペースにおいても、延在部３２，３３を有効に配置して固定支持部３０の抜け止め効果を有効に発揮させることができる。なお、延在部は１つであってもよい。 The main body 9 is formed with a guide hole 8 into which a guide shaft 5 for guiding the movement of the movable member 6 is fitted. The pair of extension portions 32 and 33 is disposed in the main body portion 9 so as not to overlap with the guide hole 8. A notch 31 c is formed in the support body 31, and the notch 31 c and the guide hole 8 are arranged to overlap in the direction of the axis L, and the pair of extension portions 32 and 33 is a notch. It extends in the direction of the axis L from the lower end portion of the support main body portion 31 divided into two in the Y direction by the portion 31c. Further, the pair of extension portions 32 and 33 are disposed in parallel with the guide hole 8 on both sides of the guide hole 8 in the main body portion 9 in the Y direction, and a part thereof overlaps the guide hole 8 in the X direction. Are arranged. Thus, even in a limited space, the extending portions 32 and 33 can be effectively disposed to effectively exhibit the retaining effect of the fixed support portion 30. The number of extension parts may be one.
　本実施形態では、軸線Ｌ方向において、延在部３２，３３の先端は、弾性支持部２０の突出部２６の反出力側Ｌ２の面まで到達しており、Ｙ方向において、延在部３２，３３の幅（Ｙ方向の一方の端部から他方の端部までの長さ）は、支持本体部３１と同じである。また、Ｘ方向において、延在部３２，３３の下面はガイド孔８の下端まで到達している。このような延在部３２，３３の配置により、本体部９との接触面積を大きくすることができ、固定支持部３０をより強固に保持することができる。その結果、固定支持部３０の抜け止めをより確実にすることができる。 In the present embodiment, in the direction of the axis L, the tips of the extending portions 32, 33 reach the surface on the non-output side L2 of the projecting portion 26 of the elastic support portion 20, and in the Y direction, the extending portion 32, The width 33 (the length from one end in the Y direction to the other end) is the same as that of the support body 31. Further, the lower surfaces of the extension portions 32 and 33 reach the lower end of the guide hole 8 in the X direction. By the arrangement of the extension portions 32 and 33 as described above, the contact area with the main body portion 9 can be increased, and the fixed support portion 30 can be held more firmly. As a result, the fixed support portion 30 can be more reliably prevented from coming off.
　一対のアーム部３４，３５は、その一部が本体部９に埋め込まれている。これにより、固定支持部３０の本体部９との接触面積をさらに大きくすることができ、固定支持部３０をさらに強固に保持することができる。また、例えば一対のアーム部３４，３５が設けられていないと、支持本体部３１に軸線Ｌ方向の応力が過度に作用した場合に、支持本体部３１の基端部（本体部９から露出した根元部分）３１ｄに応力が集中して基端部３１ｄが破断する可能性がある。これに対し、本実施形態では、一対のアーム部３４，３５が本体部９に部分的に埋め込まれていることで、本体部９の上面に沿った固定支持部３０の断面積を増やすことができる。その結果、支持本体部３１に作用する応力を分散させることができ、上述の応力に対する耐久性を向上させることができる。 A part of the pair of arms 34 and 35 is embedded in the main body 9. Thereby, the contact area with the main-body part 9 of the fixed support part 30 can be enlarged further, and the fixed support part 30 can be hold | maintained more firmly. Further, for example, when the pair of arm portions 34 and 35 is not provided, the base end portion of the support main body portion 31 (exposed from the main body portion 9 when stress in the axis L direction acts excessively on the support main body portion 31) The stress may concentrate on the root portion 31d and the proximal end 31d may break. On the other hand, in the present embodiment, the cross-sectional area of the fixed support 30 along the upper surface of the main body 9 can be increased by partially embedding the pair of arms 34 and 35 in the main body 9. it can. As a result, the stress acting on the support main body portion 31 can be dispersed, and the durability to the above-described stress can be improved.
　なお、一対のアーム部３４，３５は、支持本体部３１から離れるにつれて互いの間隔が狭くなるように軸線Ｌ方向に対して斜めに延びている。これにより、本体部９のサイズに制約がある場合にも、一対のアーム部３４，３５の外側で樹脂が薄くなる部分が形成されることを抑制することができる。さらに、一対のアーム部３４，３５が斜めに延びていることで、一対のアーム部３４，３５と支持本体部３１とが樹脂を抱え込む部分（図１１の斜線で示す部分）が形成されるため、固定支持部３０と本体部９との一体化をより強固にすることができる。ただし、一対のアーム部３４，３５の形状は、図示した形状に限定されるものではなく、例えば、本体部９のＹ方向のサイズに余裕があり、一対のアーム部３４，３５の外側に十分な厚みの樹脂を確保できる場合には、軸線Ｌ方向に平行に延びていてもよい。 The pair of arm portions 34 and 35 extend obliquely with respect to the direction of the axis L such that the distance between the pair of arm portions 34 and 35 decreases as the distance from the support body portion 31 increases. Thereby, even when the size of the main body portion 9 is restricted, it is possible to suppress the formation of a portion where the resin becomes thin outside the pair of arm portions 34, 35. Furthermore, since the pair of arm portions 34 and 35 obliquely extend, a portion (portion indicated by hatching in FIG. 11) in which the pair of arm portions 34 and 35 and the support main body portion 31 hold resin is formed. The integration of the fixed support portion 30 and the main body portion 9 can be further strengthened. However, the shape of the pair of arm portions 34 and 35 is not limited to the illustrated shape. For example, the size of the main body portion 9 in the Y direction has a margin and is sufficiently outside the pair of arm portions 34 and 35 If a resin of a certain thickness can be secured, it may extend parallel to the axis L direction.
　本実施形態では、固定支持部３０は金属からなり、樹脂からなる本体部９にインサート成形により固定されているが、固定支持部３０の材料や固定方法は、これらに限定されるものではない。固定支持部３０の材料は、本体部９よりも剛性の高いものであれば樹脂であってもよく、その固定方法も、例えば、圧入による方法を用いることができる。 In the present embodiment, the fixing support portion 30 is made of metal and is fixed to the main body portion 9 made of resin by insert molding, but the material and the fixing method of the fixing support portion 30 are not limited thereto. The material of the fixing support portion 30 may be a resin as long as it has rigidity higher than that of the main body portion 9, and the fixing method may be, for example, a method by press-fitting.
　（ナットユニット）
　次に、図１２を参照して、本実施形態の駆動装置１に用いられるナットユニット４０の詳細な構成について説明する。図１２（ａ）は、本実施形態の駆動装置を図４とは反対側から見た概略側面図であり、図１２（ｂ）は、図１２（ａ）の円Ｂで囲まれた領域の拡大側面図である。図１３は、本実施形態のナットユニットの動作を説明するための模式図である。 (Nut unit)
Next, with reference to FIG. 12, the detailed structure of the nut unit 40 used for the drive device 1 of this embodiment is demonstrated. 12 (a) is a schematic side view of the drive device of this embodiment as viewed from the side opposite to FIG. 4, and FIG. 12 (b) is an area surrounded by circle B in FIG. 12 (a). It is an enlarged side view. FIG. 13 is a schematic view for explaining the operation of the nut unit of the present embodiment.
　ナットユニット４０は、第１のナット部材４１と、コイルばね４２と、第２のナット部材４３とを有し、本体部９に形成された溝状のナット配置部１１内に配置されている。第１のナット部材４１と第２のナット部材４３はリードスクリュー４に螺合し、コイルばね４２の内部をリードスクリュー４が貫通している。 The nut unit 40 includes a first nut member 41, a coil spring 42, and a second nut member 43, and is disposed in a groove-shaped nut disposition portion 11 formed in the main body portion 9. The first nut member 41 and the second nut member 43 are screwed into the lead screw 4, and the lead screw 4 passes through the inside of the coil spring 42.
　第１のナット部材４１は、外形が矩形状のフランジ部４１ａと、フランジ部４１ａから軸線Ｌ方向に延びる筒部４１ｂとを有し、フランジ部４１ａと筒部４１ｂの内側に、リードスクリュー４に螺合するねじ部が形成されている。第２のナット部材４３も、外形が矩形状のフランジ部４３ａと、フランジ部４３ａから軸線Ｌ方向に延びる筒部４３ｂとを有し、フランジ部４３ａと筒部４３ｂの内側に、リードスクリュー４に螺合するねじ部が形成されている。第１のナット部材４１と第２のナット部材４３は、筒部４１ａ，４３ａ同士が互いに対向するようにナット配置部１１内に配置されている。第１のナット部材４１のフランジ部４１ａは、ナット配置部１１の内面１１ａから突出する一対の対向リブ１２ａ，１２ｂに当接している。なお、ナット配置部１１の内面１１ａには、第１のナット部材４１の軸線Ｌ方向の反出力側Ｌ２に、もう一対の対向リブ１３ａ，１３ｂが形成されているが、これは、ナットユニット４０（第１のナット部材４１）と可動部材６との位置決めを容易にするために設けられている。 The first nut member 41 has a flange portion 41a having a rectangular outer shape, and a cylindrical portion 41b extending in the direction of the axis L from the flange portion 41a, and the lead screw 4 is provided inside the flange portion 41a and the cylindrical portion 41b. A screw portion to be screwed is formed. The second nut member 43 also has a flange portion 43a having a rectangular outer shape, and a cylindrical portion 43b extending in the direction of the axis L from the flange portion 43a, and the lead screw 4 is disposed inside the flange portion 43a and the cylindrical portion 43b. A screw portion to be screwed is formed. The first nut member 41 and the second nut member 43 are disposed in the nut arrangement portion 11 so that the cylindrical portions 41a and 43a face each other. The flange portion 41 a of the first nut member 41 is in contact with the pair of opposing ribs 12 a and 12 b protruding from the inner surface 11 a of the nut disposition portion 11. Although another pair of opposing ribs 13a and 13b are formed on the inner surface 11a of the nut placement portion 11 on the opposite side L2 in the direction of the axis L of the first nut member 41, this is a nut unit 40. It is provided to facilitate the positioning of the (first nut member 41) and the movable member 6.
　コイルばね４２は、圧縮された状態で、一対の対向リブ１２ａ，１２ｂと第２のナット部材４３との間に配置されている。したがって、コイルばね４２は、一方の端部では、一対の対向リブ１２ａ，１２ｂに当接し、一対の対向リブ１２ａ，１２ｂを軸線Ｌ方向の反出力側Ｌ２に付勢して第１のナット部材４１のフランジ部４１ａに当接させている。また、コイルばね４２は、他方の端部では、第２のナット部材４３のフランジ部４３ａに当接し、第２のナット部材４３のフランジ部４３ａを軸線Ｌ方向の出力側Ｌ１に付勢している。なお、本実施形態では、もう一対の対向リブ１３ａ，１３ｂが設けられていることで、ナットユニット４０をナット配置部１１に配置する際に一対の対向リブ１２ａ，１２ｂと第２のナット部材４３との距離が近くなりすぎることを抑制することができる。そのため、コイルばね４２が過度に圧縮したり、コイルばね４２が第１のナット部材４１の筒部４１ｂから外れたりすることを抑制することができる。 The coil spring 42 is disposed between the pair of opposing ribs 12 a and 12 b and the second nut member 43 in a compressed state. Therefore, at one end, the coil spring 42 abuts against the pair of opposing ribs 12a and 12b, and biases the pair of opposing ribs 12a and 12b to the non-output side L2 in the direction of the axis L to make the first nut member It is in contact with the flange portion 41 a of 41. At the other end, the coil spring 42 abuts on the flange portion 43a of the second nut member 43, and biases the flange portion 43a of the second nut member 43 toward the output side L1 in the axis L direction. There is. In the present embodiment, when the nut unit 40 is disposed in the nut disposition portion 11, the pair of opposing ribs 12a and 12b and the second nut member 43 are provided by providing the pair of opposing ribs 13a and 13b. It can control that the distance with is too close. Therefore, it is possible to suppress that the coil spring 42 is compressed excessively or the coil spring 42 is detached from the cylindrical portion 41 b of the first nut member 41.
　第１のナット部材４１は、フランジ部４１ａがナット配置部１１の内面１１ａに当接することで本体部９に対する回転が規制されている。換言すると、ナット配置部１１の内面１１ａは、第１のナット部材４１のフランジ部４１ａと当接して第１のナット部材４１の回転を規制する規制部として機能する。さらに、第１のナット部材４１は、上述したように、一対の対向リブ１２ａ，１２ｂを介してコイルばね４２から軸線Ｌ方向の反出力側Ｌ２に向けて付勢力（予圧）を付与され、フランジ部４１ａが一対の対向リブ１２ａ，１２ｂと常に当接している。このため、第１のナット部材４１は、駆動部３の駆動力を本体部３に伝達する駆動力伝達部として機能し、一対の対向リブ１２ａ，１２ｂは、駆動部３の駆動力を第１のナット部材４１から受ける駆動力受け部として機能する。その結果、リードスクリュー４の回転に伴って本体部９を軸線Ｌ方向に往復移動させることができる。 The rotation of the first nut member 41 with respect to the main body portion 9 is restricted by the flange portion 41 a coming into contact with the inner surface 11 a of the nut disposition portion 11. In other words, the inner surface 11 a of the nut arrangement portion 11 abuts on the flange portion 41 a of the first nut member 41 and functions as a restricting portion that restricts the rotation of the first nut member 41. Furthermore, as described above, the first nut member 41 is biased from the coil spring 42 toward the non-output side L2 in the direction of the axis L via the pair of opposing ribs 12a and 12b, and a flange is applied. The portion 41a is always in contact with the pair of opposing ribs 12a and 12b. For this reason, the first nut member 41 functions as a driving force transmitting unit for transmitting the driving force of the driving unit 3 to the main body 3, and the pair of opposing ribs 12 a and 12 b perform the first driving force of the driving unit 3. Functions as a driving force receiving portion received from the nut member 41 of the second embodiment. As a result, with the rotation of the lead screw 4, the main body 9 can be reciprocated in the direction of the axis L.
　第２のナット部材４３は、フランジ部４３ａがナット配置部１１の内面１１ａに当接することで本体部９に対する回転が規制されている。換言すると、ナット配置部１１の内面１１ａは、第２のナット部材４３のフランジ部４３ａと当接して第２のナット部材４３の回転を規制する規制部として機能する。一方で、第２のナット部材４３は、軸線Ｌ方向に関しては、本体部９には支持されておらず、上述したように、コイルばね４２から軸線Ｌ方向の出力側Ｌ１に向けて付勢力（予圧）を付与されている。こうして、第２のナット部材４３は、コイルばね４２と共に予圧付与部として機能し、図１３に示すように、第１のナット部材４１のねじ部と第２のナット部材４３のねじ部との間に互いに離間する方向に予圧Ｆを付与することができる。 The rotation of the second nut member 43 with respect to the main body portion 9 is restricted by the flange portion 43 a contacting the inner surface 11 a of the nut disposition portion 11. In other words, the inner surface 11 a of the nut arrangement portion 11 abuts on the flange portion 43 a of the second nut member 43 and functions as a restricting portion that restricts the rotation of the second nut member 43. On the other hand, the second nut member 43 is not supported by the main body 9 in the direction of the axis L, and as described above, the biasing force is directed from the coil spring 42 toward the output side L1 in the direction of the axis L Pre-load) is given. Thus, the second nut member 43 functions as a preload applying portion together with the coil spring 42, and as shown in FIG. 13, between the screw portion of the first nut member 41 and the screw portion of the second nut member 43. The preload F can be applied in the direction away from each other.
　このような予圧Ｆによって、第１のナット部材４１によって可動部材３が移動する際に、第１のナット部材４１のねじ部を常にリードスクリュー４の反出力側フランク面４ａに当接させることができる。さらに、第２のナット部材４３のねじ部をリードスクリュー４の出力側フランク面４ｂに当接させることができる。その結果、リードスクリュー４と各ナット部材（ねじ部）とのクリアランス（バックラッシュ）を吸収して、可動部材６の移動方向（軸線Ｌ方向）へのガタツキを抑制することができる。 When the movable member 3 is moved by the first nut member 41 by such a preload F, the screw portion of the first nut member 41 can always be in contact with the non-output side flank 4 a of the lead screw 4 it can. Furthermore, the threaded portion of the second nut member 43 can be brought into contact with the output side flank 4 b of the lead screw 4. As a result, it is possible to absorb the clearance (backlash) between the lead screw 4 and each nut member (screw portion), and to suppress rattling of the movable member 6 in the movement direction (the direction of the axis L).
　なお、上述したように、コイルばね４２は、一方の端部で可動部材６（一対の対向リブ１２ａ，１２ｂ）に当接し、他方の端部で第２のナット部材４３に当接しており、可動部材６は、第１のナット部材４１のフランジ部４１ａに当接している。そのため、可動部材６が軸線Ｌ方向の出力側Ｌ１に移動する場合には、第１のナット部材４１の推力がフランジ部４１ａを介して可動部材６に駆動力として伝達され、可動部材６が軸線Ｌ方向の反出力側Ｌ２に移動する場合には、コイルばね４２の付勢力によって、駆動力は第１のナット部材４１を通じて可動部材６に伝達される。こうして、可動部材６は軸線Ｌ方向の出力側Ｌ１と反出力側Ｌ２のどちらにも移動することができ、その場合にも、上述したように、１つのコイルばね４２で可動部材６のガタツキを常に抑制することができる。 As described above, the coil spring 42 is in contact with the movable member 6 (the pair of opposing ribs 12a and 12b) at one end, and is in contact with the second nut member 43 at the other end. The movable member 6 is in contact with the flange portion 41 a of the first nut member 41. Therefore, when the movable member 6 moves to the output side L1 in the direction of the axis L, the thrust of the first nut member 41 is transmitted to the movable member 6 as a driving force through the flange portion 41a, and the movable member 6 is When moving to the non-output side L 2 in the L direction, the driving force is transmitted to the movable member 6 through the first nut member 41 by the biasing force of the coil spring 42. Thus, the movable member 6 can move to either the output side L1 in the direction of the axis L or the non-output side L2, and even in that case, as described above, the single coil spring 42 causes rattling of the movable member 6 It can always be suppressed.
　ところで、本実施形態では、ナットユニット４０を収容するナット配置部１１は、本体部９とフレーム本体２ａとが対向する方向（Ｘ方向）にではなく、それと交差する方向（Ｙ方向）に開口している。このことは、ナットユニット４０をナット配置部１１内に配置する際の作業性を向上させることができる点で特に好ましい。すなわち、ナット配置部１１がフレーム本体２ａに対向する方向に開口していると、フレーム本体２ａによってナット配置部１１内を目視で確認することができず、ナットユニット４０を適正な配置でナット配置部１１内に収容することが困難になる。これに対し、本実施形態では、ナットユニット４０をナット配置部１１内に収容する際に、フレーム本体２ａが邪魔になることがないため、目視で確認しながらナットユニット４０を適正な位置に配置することができ、組み立て時の歩留まりの低下を抑制することができる。 By the way, in the present embodiment, the nut arranging portion 11 accommodating the nut unit 40 is opened not in the direction (X direction) in which the main body portion 9 and the frame main body 2a face each other but in the direction (Y direction) ing. This is particularly preferable in that the workability at the time of arranging the nut unit 40 in the nut arrangement portion 11 can be improved. That is, when the nut arrangement portion 11 is opened in the direction to face the frame body 2a, the inside of the nut arrangement portion 11 can not be visually confirmed by the frame body 2a, and the nut unit 40 is arranged properly. It becomes difficult to accommodate in the section 11. On the other hand, in the present embodiment, when the nut unit 40 is accommodated in the nut arrangement portion 11, the frame main body 2a does not get in the way, so the nut unit 40 is disposed at an appropriate position while confirming visually. Thus, it is possible to suppress a drop in yield at the time of assembly.
　本実施形態では、上述したように、ガイドシャフト５とリードスクリュー４がＸ方向で重なるよう配置されている。支持部１０は、ガイドシャフト５とリードスクリュー４にＸ方向で重なるよう設けられている。したがって、可動部材６の移動を安定させることができる。また、本実施形態では、本体部９の下部に、本体部９の回転を規制する一対のストッパ９ｂ，９ｃ（図４および図８参照）が設けられているが、ガイドシャフト５から各ストッパ９ｂ，９ｃまでの距離をほぼ等しくすることができる。そのため、可動部材６の回転方向のガタツキを極力抑制することができ、可動部材６の移動を安定させることができる。 In the present embodiment, as described above, the guide shaft 5 and the lead screw 4 are arranged to overlap in the X direction. The support portion 10 is provided to overlap the guide shaft 5 and the lead screw 4 in the X direction. Therefore, the movement of the movable member 6 can be stabilized. Further, in the present embodiment, a pair of stoppers 9b and 9c (see FIGS. 4 and 8) for restricting the rotation of the main body 9 is provided at the lower part of the main body 9, but , 9c can be made approximately equal. Therefore, rattling in the rotational direction of the movable member 6 can be suppressed as much as possible, and the movement of the movable member 6 can be stabilized.
　本実施形態では、第１のナット部材４１と第２のナット部材４３は共に、本体部９とは別体として設けられているが、第１のナット部材４１は、本体部９と一体に移動するようになっていれば、必ずしも本体部９と別体である必要はない。すなわち、第１のナット部材４１は、接着剤などの固定手段により、本体部９に物理的に固定されていてもよく、あるいは、第１のナット部材４１と本体部９とが一体的に形成され、本体部９自体がリードスクリュー４に螺合する雌ねじ部を備えていてもよい。 In the present embodiment, although both the first nut member 41 and the second nut member 43 are provided separately from the main body 9, the first nut member 41 moves integrally with the main body 9. If it does, it does not necessarily need to be separate from the main body part 9. That is, the first nut member 41 may be physically fixed to the main body 9 by fixing means such as an adhesive, or the first nut member 41 and the main body 9 are integrally formed. The body portion 9 itself may be provided with a female screw portion screwed to the lead screw 4.
　以上、本開示の実施の一形態であるヘッドアップディスプレイ装置を説明した。 In the above, the head-up display apparatus which is one embodiment of this indication was demonstrated.
　本開示のヘッドアップディスプレイ装置１０００は、
　表示光Ｌを出力する表示器１１０と、表示光Ｌを反射させる反射器１３０と、を有し、反射器１３０によって反射された前記表示光Ｌを投影部材１０３に投影して虚像Ｖを表示するヘッドアップディスプレイ装置１０００において、
　反射器１３０を回動動作させる駆動装置１を備え、
　駆動装置１は、駆動部３と、駆動部３の駆動力によって移動する可動部材６と、を有し、
　可動部材６は、本体部９と、反射器１３０を支持する支持部１０と、を備え、
　支持部１０は、反射器１３０を付勢する弾性支持部２０と、可動部材６の移動方向において弾性支持部２０に対向して設けられ、弾性支持部２０によって付勢された反射器１３０を支持する固定支持部３０と、を有している。
　このように構成することで、反射器１３０の位置決め精度が向上する支持部１０を備えた駆動装置１を備えるため、表示像のブレを抑制できる。 The head-up display device 1000 of the present disclosure is
A display 110 for outputting the display light L and a reflector 130 for reflecting the display light L, and projecting the display light L reflected by the reflector 130 onto the projection member 103 to display a virtual image V In the head-up display device 1000,
A driving device 1 for rotating the reflector 130;
The drive device 1 includes a drive unit 3 and a movable member 6 moved by the drive force of the drive unit 3;
The movable member 6 comprises a main body 9 and a support 10 for supporting the reflector 130,
The support portion 10 is provided so as to face the elastic support portion 20 for urging the reflector 130 and the elastic support portion 20 in the moving direction of the movable member 6, and supports the reflector 130 urged by the elastic support portion 20. And a fixed support portion 30.
By comprising in this way, since the drive apparatus 1 provided with the support part 10 which the positioning accuracy of the reflector 130 improves is provided, the blurring of a display image can be suppressed.
　また、本開示のヘッドアップディスプレイ装置１０００の
　弾性支持部２０は、反射器１３０に当接して該反射器１３０を固定支持部３０に向けて付勢する弾性部材２１と、弾性部材２１を保持する弾性部材固定部２２と、を有し、
　弾性部材固定部２２は、本体部９に設けられている、ことが好ましい。
　このように構成することで、弾性部材２１を容易に固定できる。また、弾性部材２１は、製造が容易な板ばねであることが好ましい。 Further, the elastic support portion 20 of the head-up display device 1000 of the present disclosure holds the elastic member 21 in contact with the reflector 130 to bias the reflector 130 toward the fixed support portion 30 and the elastic member 21. An elastic member fixing portion 22;
The elastic member fixing portion 22 is preferably provided in the main body portion 9.
By this configuration, the elastic member 21 can be easily fixed. Moreover, it is preferable that the elastic member 21 is a leaf spring which is easy to manufacture.
　また、本開示のヘッドアップディスプレイ装置１０００の
　弾性部材２１は、弾性部材固定部２２に取り付けられた固定板部２３と、固定板部２３の端部から延び、弾性変形可能な弾性変形板部２４と、を有し、
　弾性変形板部２４は、固定板部２３の端部から延びる第１の弾性部２４ａと、第１の弾性部２４ａの端部から延びる第２の弾性部２４ｂと、を有し、
　第２の弾性部２４ｂには、反射器１３０に当接する当接部２５ｃが形成されている、ことが好ましい。
　このように構成することで、弾性変形板部２４の弾性を確保できる。 Further, the elastic member 21 of the head-up display device 1000 of the present disclosure extends from the fixing plate portion 23 attached to the elastic member fixing portion 22 and the end of the fixing plate portion 23, and can be elastically deformed. And
The elastically deformable plate portion 24 has a first elastic portion 24a extending from an end portion of the fixed plate portion 23 and a second elastic portion 24b extending from an end portion of the first elastic portion 24a.
It is preferable that the contact part 25c which contact | abuts to the reflector 130 is formed in the 2nd elastic part 24b.
With such a configuration, the elasticity of the elastically deformable plate portion 24 can be secured.
　また、本開示のヘッドアップディスプレイ装置１０００の
　当接部２５ｃは、第２の弾性部２４ｂの先端部２５ｄが反射器１３０と反対側を向くように第２の弾性部２４ｂを折り曲げた折り曲げ部２５ｂである、ことが好ましい。
　このように構成することで、例えば、車両の衝突などに起因して弾性変形板部２４に大きな衝撃が作用した場合であっても、先端部２５ｄが弾性部材固定部２２に当接して、弾性変形板部２４の過度な変形、すなわち塑性変形を抑制できる。これにより、反射器１３０を安定して付勢することができる。 Further, the contact portion 25c of the head-up display device 1000 of the present disclosure is a bent portion 25b obtained by bending the second elastic portion 24b so that the tip end 25d of the second elastic portion 24b faces the opposite side to the reflector 130. Is preferred.
With such a configuration, for example, even when a large impact acts on the elastic deformation plate portion 24 due to a collision of a vehicle or the like, the tip end portion 25d abuts on the elastic member fixing portion 22, and elasticity is achieved. Excessive deformation of the deformation plate portion 24, that is, plastic deformation can be suppressed. Thereby, the reflector 130 can be stably energized.
　また、本開示のヘッドアップディスプレイ装置１０００の
　第１の弾性部２４ａは、固定板部２３の延長線上に延び、第２の弾性部２４ｂは、第１の弾性部２４ａに対して鋭角に延びている、ことが好ましい。この場合、固定板部２３と第１の弾性部２４ａとの間には第１の支点部２５ａが形成され、第１の支点部２５ａは、弾性部材２１の弾性部材固定部２２に保持されている領域と弾性部材固定部２２に保持されていない領域との境界部として規定され、第１の弾性部２４ａは、第１の支点部２５ａを支点として固定板部２３に対して弾性変形可能である、ことが好ましい。
　このように構成することで、弾性変形板部２４の弾性を確保することができる。 Further, the first elastic portion 24a of the head-up display device 1000 of the present disclosure extends on the extension of the fixed plate portion 23, and the second elastic portion 24b extends at an acute angle with respect to the first elastic portion 24a. Is preferred. In this case, the first supporting point 25a is formed between the fixed plate 23 and the first elastic part 24a, and the first supporting point 25a is held by the elastic member fixing part 22 of the elastic member 21. The first elastic portion 24a is elastically deformable with respect to the fixing plate portion 23 with the first fulcrum portion 25a as a fulcrum. Preferably.
With such a configuration, the elasticity of the elastically deformable plate portion 24 can be secured.
　また、本開示のヘッドアップディスプレイ装置１０００の
　弾性部材固定部２２は、本体部９から突出する突出部２６と、突出部２６に設けられた規制部２７と、有し、規制部２７は、突出部２６との間に固定板部２３が挿入される隙間Ｇを形成するとともに、固定板部２３の隙間Ｇへの挿入方向Ｘと交差する方向（Ｙ方向および軸線Ｌ方向）への移動を規制する、ことが好ましい。
　このように構成することで、弾性部材２１の位置がずれることを抑制できる。 In addition, the elastic member fixing portion 22 of the head-up display device 1000 of the present disclosure includes the protruding portion 26 protruding from the main body portion 9 and the restricting portion 27 provided on the protruding portion 26, and the restricting portion 27 protrudes The gap G between the fixing plate portion 23 and the portion 26 is formed, and the movement of the fixing plate portion 23 in the direction (Y direction and axis L direction) intersecting the insertion direction X into the gap G is restricted. Is preferred.
By comprising in this way, it can suppress that the position of the elastic member 21 shifts | deviates.
　また、本開示のヘッドアップディスプレイ装置１０００の
　弾性部材固定部２２は、突出部２６に設けられた係止部２６ｂを有し、係止部２６ｂは、隙間Ｇに挿入された固定板部２３と係合して固定板部２３の隙間Ｇへの挿入方向と反対方向への移動を規制する、ことが好ましい。
　このように構成することで、弾性部材２１の位置がずれることを抑制することができる。 In addition, the elastic member fixing portion 22 of the head-up display device 1000 of the present disclosure has a locking portion 26 b provided in the protruding portion 26, and the locking portion 26 b and the fixing plate portion 23 inserted in the gap G It is preferable to engage to restrict movement of the fixing plate portion 23 in the direction opposite to the insertion direction into the gap G.
With this configuration, it is possible to suppress the displacement of the position of the elastic member 21.
　また、本開示のヘッドアップディスプレイ装置１０００の
　弾性部材固定部２２は、本体部９から突出する突出部２６を有し、突出部２６には、弾性変形板部２４との干渉を回避する逃げ部２６ｃが形成されている、ことが好ましい。この場合、逃げ部２６ｃは、突出部２６に形成された段差部２６ｃであり、段差部２６ｃは、突出部２６の第２の弾性部２４ｂに対向する角部に形成され、第２の弾性部２４ｂの幅よりも広い幅を有している、ことが好ましい。
　このように構成することで、弾性変形板部２４の可動範囲を広げることができる。 In addition, the elastic member fixing portion 22 of the head-up display device 1000 of the present disclosure has a protruding portion 26 protruding from the main body portion 9, and the protruding portion 26 is a relief portion for avoiding interference with the elastic deformation plate portion 24. Preferably, 26c is formed. In this case, the relief portion 26c is a step portion 26c formed in the protrusion portion 26, and the step portion 26c is formed in a corner portion facing the second elastic portion 24b of the protrusion portion 26, and the second elastic portion It is preferable to have a width wider than the width of 24b.
With such a configuration, the movable range of the elastic deformation plate portion 24 can be expanded.
　また、本開示のヘッドアップディスプレイ装置１０００の
　弾性部材固定部２２は、本体部９から突出する突出部２６と、突出部２６と本体部９とを接続する補強リブ２６ａと、を有し、補強リブ２６ａは、突出部２６の固定支持部３０に対向する側で固定支持部３０に向かって延びる板状に形成されている、ことが好ましい。
　このように構成することで、弾性部材固定部２２の強度を向上させることができる。 In addition, the elastic member fixing portion 22 of the head-up display device 1000 of the present disclosure includes the protruding portion 26 protruding from the main body portion 9 and the reinforcing rib 26 a connecting the protruding portion 26 and the main body portion 9. The rib 26 a is preferably formed in a plate shape extending toward the fixed support 30 on the side of the protrusion 26 facing the fixed support 30.
By configuring in this manner, the strength of the elastic member fixing portion 22 can be improved.
　また、本開示のヘッドアップディスプレイ装置１０００の
　固定支持部３０は、本体部９よりも剛性の高い材料で形成され、本体部９に部分的に埋め込まれて固定されている、ことが好ましい。
　このように構成することで、反射器１３０を支持する支持部１０の強度を向上できる。 Further, it is preferable that the fixed support portion 30 of the head-up display device 1000 of the present disclosure is formed of a material having a rigidity higher than that of the main body portion 9 and partially embedded and fixed in the main body portion 9.
By configuring in this manner, the strength of the support 10 that supports the reflector 130 can be improved.
　また、本開示のヘッドアップディスプレイ装置１０００の
　固定支持部３０は、可動部材６の移動方向において反射器１３０に対向する位置で反射器１３０を支持している、ことが好ましい。 In addition, it is preferable that the fixed support portion 30 of the head-up display device 1000 of the present disclosure supports the reflector 130 at a position facing the reflector 130 in the moving direction of the movable member 6.
　また、本開示のヘッドアップディスプレイ装置１０００の
　固定支持部３０は、可動部材６の移動方向と交差する方向に延びる支持本体部３１と、支持本体部３１の端部から可動部材６の移動方向に延びる延在部３２，３３と、を有し、延在部３２，３３は、少なくとも上面３２ａ，３３ａの一部が本体部９で覆われている、ことが好ましい。
　このように構成することで、固定支持部３０の本体部９からの抜け強度が向上する。 Further, the fixed support portion 30 of the head-up display device 1000 of the present disclosure extends in the moving direction of the movable member 6 from the end portion of the supporting body portion 31 extending in the direction intersecting the moving direction of the movable member 6. The extension portions 32 and 33 preferably have at least a part of the upper surfaces 32 a and 33 a covered with the main body portion 9.
By having such a configuration, the strength of the fixed support 30 to be removed from the main body 9 is improved.
　また、本開示のヘッドアップディスプレイ装置１０００は、
　駆動部３によって回転駆動されるリードスクリュー４を有し、可動部材６は、駆動部３の駆動力を本体部９に伝達する駆動力伝達部と、本体部９とは別体に設けられた予圧付与部と、を備え、駆動力伝達部は、リードスクリュー４に螺合する第１のねじ部を備え、リードスクリュー４の回転に伴って本体部９をリードスクリュー４の軸線方向に移動させ、予圧付与部は、リードスクリュー４に螺合する第２のねじ部を備え、第１のねじ部と第２のねじ部との間に予圧を付与する、ことが好ましい。
　このように構成することで、リードスクリュー４と各ねじ部とのクリアランス（バックラッシュ）を吸収して、可動部材６の移動方向（リードスクリュー４の軸線方向）へのガタツキを抑制することができる。 In addition, the head-up display device 1000 of the present disclosure is
The movable member 6 has a lead screw 4 rotationally driven by the drive unit 3, and the movable member 6 is provided separately from the drive force transmission unit for transmitting the drive force of the drive unit 3 to the main body unit 9 and the main body unit 9. The driving force transmitting unit includes a first screw portion screwed to the lead screw 4 and moves the main body 9 in the axial direction of the lead screw 4 with the rotation of the lead screw 4. Preferably, the preload applying portion includes a second screw portion screwed to the lead screw 4 and applies a preload between the first screw portion and the second screw portion.
With such a configuration, it is possible to absorb the clearance (backlash) between the lead screw 4 and each screw portion and to suppress rattling of the movable member 6 in the movement direction (axial direction of the lead screw 4). .
　また、本開示のヘッドアップディスプレイ装置１０００の
　駆動力伝達部は、第１のねじ部を備え、本体部９とは別体に設けられた第１のナット部材４１を有し、予圧付与部は、第２のねじ部を備えた第２のナット部材４３と、第１のナット部材４１と第２のナット部材４３との間に設けられた付勢部材と、を有し、本体部９には、第１のナット部材４１と第２のナット部材４３が配置されるナット配置部１１が形成され、第１のナット部材４１と第２のナット部材４３は、本体部９に対する回転が規制された状態でナット配置部１１に配置されている、ことが好ましい。この場合、ナット配置部１１には、駆動部３の駆動力を第１のナット部材４１から受ける駆動力受け部１２ａ，１２ｂが形成され、第１のナット部材４１は、駆動受け部１２ａ，１２ｂを介して付勢部材から予圧を付与されている、ことが好ましい。
　このように構成することで、第１のナット部材４１と第２のナット部材４３のどちらも本体部９内に配置することができ、装置の省スペース化を図ることができる。 In addition, the driving force transmission unit of the head-up display device 1000 of the present disclosure includes a first nut member 41 provided with a first screw portion and provided separately from the main body portion 9, and the preload applying unit is And a second nut member 43 having a second screw portion, and a biasing member provided between the first nut member 41 and the second nut member 43, The nut arrangement portion 11 in which the first nut member 41 and the second nut member 43 are arranged is formed, and the rotation of the first nut member 41 and the second nut member 43 with respect to the main body 9 is restricted. It is preferable that it is arrange | positioned in the nut arrangement | positioning part 11 in the state of being. In this case, drive force receiving portions 12a and 12b for receiving the drive force of the drive portion 3 from the first nut member 41 are formed in the nut placement portion 11, and the first nut member 41 is formed of the drive receiving portions 12a and 12b. Preferably, preload is applied from the biasing member via
With this configuration, both the first nut member 41 and the second nut member 43 can be disposed in the main body portion 9, and space saving of the device can be achieved.
　また、本開示のヘッドアップディスプレイ装置１０００の
　付勢部材はコイルばね４２であり、リードスクリュー４は、コイルばね４２の内部を貫通しており、付勢部材は、駆動力受け部１２ａ，１２ｂと第２のナット部材４３との間に配置されている、ことが好ましい。 Further, the biasing member of the head-up display device 1000 of the present disclosure is a coil spring 42, the lead screw 4 penetrates the inside of the coil spring 42, and the biasing member includes driving force receiving portions 12a and 12b. Preferably, it is disposed between the second nut member 43 and the second nut member 43.
　本開示のヘッドアップディスプレイ装置は、車両の風防ガラスに車両情報を虚像で表示する表示装置に適している。 The head-up display device of the present disclosure is suitable for a display device that displays vehicle information as a virtual image on the windshield of the vehicle.
　１０００　ヘッドアップディスプレイ装置、　１０３　風防ガラス（投影部材）、　１１０　液晶表示器、　１３０　第２の反射器、
　Ｌ　表示光、　Ｖ　虚像、
　１　駆動装置、　２　フレーム、　２ａ　フレーム本体、　２ｂ，２ｃ　支持部
　３　駆動部、　４　リードスクリュー、　５　ガイドシャフト、　６　可動部材
　８　ガイド孔、　９　本体部、　１０　支持部、　１１　ナット配置部、
　１１ａ　内面、　１２ａ，１２ｂ　対向リブ、　２０　弾性支持部、　２１　弾性部材
　２２　弾性部材固定部、　２３　固定板部、　２４　弾性変形板部
　２４ａ　第１の弾性部、　２４ｂ　第２の弾性部、　２５ａ　第１の支点部
　２５ｃ　突出片当接部、　２６　突出部、　２６ａ　補強リブ
　２６ｂ　第２の係止部、　２６ｃ　段差部、　２７　規制部、　３０　固定支持部
　３１　支持本体部、　３１ｃ　切り欠き部、　３２，３３　延在部
　３２ａ，３３ａ　（延在部の）上面、　３４，３５　アーム部
　４０　ナットユニット、　４１　第１のナット部材、　４１ａ　フランジ部
　４２ｂ　筒部、　４２　コイルばね、　４３　第２のナット部材
　４３ａ　フランジ部、　４３ｂ　筒部、　１３２ａ　（ミラーホルダの）突出片
　Ｇ　隙間 1000 head-up display device, 103 windshield (projecting member), 110 liquid crystal display, 130 second reflector,
L display light, V virtual image,
DESCRIPTION OF SYMBOLS 1 drive device, 2 frame, 2a frame main body, 2b, 2c support part 3 drive part, 4 lead screw, 5 guide shaft, 6 movable member 8 guide hole, 9 main body part, 10 support part, 11 nut arrangement part,
11a inner surface 12a 12b opposing rib 20 elastic support portion 21 elastic member 22 elastic member fixing portion 23 fixing plate portion 24 elastic deformation plate portion 24a first elastic portion 24b second elastic portion 25a first Fulcrum 25c projecting piece abutting portion 26 projecting portion 26a reinforcing rib 26b second locking portion 26c stepped portion 27 regulating portion 30 fixed supporting portion 31 supporting main portion 31c notched portion 32, 33 Extended portion 32a, 33a (of extended portion), 34, 35 Arm 40, nut unit 41, first nut 41a, flange 42b, cylindrical 42, coil spring 43, second nut 43a flange , 43b tube, 132a (for mirror holder) protruding piece G gap

Claims (5)

  1. 　表示光を出力する表示器と、前記表示光を反射させる反射器と、を有し、前記反射器によって反射された前記表示光を投影部材に投影して虚像を表示するヘッドアップディスプレイ装置において、
    　前記反射器を回動動作させる駆動装置を備え、
    　前記駆動装置は、駆動部と、前記駆動部の駆動力によって移動する可動部材と、を有し、
    　前記可動部材は、本体部と、前記反射器を支持する支持部と、を備え、
    　前記支持部は、前記反射器を付勢する弾性支持部と、前記可動部材の移動方向において前記弾性支持部に対向して設けられ、前記弾性支持部によって付勢された前記反射器を支持する固定支持部と、を有することを特徴とするヘッドアップディスプレイ装置。     A head-up display device comprising: a display for outputting display light; and a reflector for reflecting the display light, wherein the display light reflected by the reflector is projected onto a projection member to display a virtual image.
    And a drive device for rotating the reflector.
    The drive device includes a drive unit, and a movable member moved by the drive force of the drive unit.
    The movable member includes a main body and a support that supports the reflector.
    The supporting portion is provided with an elastic supporting portion for urging the reflector, and is provided opposite to the elastic supporting portion in the moving direction of the movable member, and supports the reflector urged by the elastic supporting portion. And a fixed support portion.
  2. 　前記弾性支持部は、前記反射器に当接して該反射器を前記固定支持部に向けて付勢する弾性部材と、前記弾性部材を保持する弾性部材固定部と、を有し、
    　前記弾性部材固定部は、前記本体部に設けられていることを特徴とする、請求項１に記載のヘッドアップディスプレイ装置。     The elastic support portion has an elastic member that abuts on the reflector to bias the reflector toward the fixed support portion, and an elastic member fixing portion that holds the elastic member.
    The head-up display device according to claim 1, wherein the elastic member fixing portion is provided on the main body portion.
  3. 　前記弾性部材は、板ばねであることを特徴とする、請求項２に記載のヘッドアップディスプレイ装置。 The head-up display device according to claim 2, wherein the elastic member is a leaf spring.
  4. 　前記弾性部材は、前記弾性部材固定部に取り付けられた固定板部と、前記固定板部の端部から延び、弾性変形可能な弾性変形板部と、を有し、
    　前記弾性変形板部は、前記固定板部の端部から延びる第１の弾性部と、前記第１の弾性部の端部から延びる第２の弾性部と、を有し、
    　前記第２の弾性部には、前記反射器に当接する当接部が形成されていることを特徴とする、請求項３に記載のヘッドアップディスプレイ装置。     The elastic member has a fixing plate portion attached to the elastic member fixing portion, and an elastically deformable plate portion which extends from an end portion of the fixing plate portion and which can be elastically deformed.
    The elastically deformable plate portion has a first elastic portion extending from an end portion of the fixed plate portion and a second elastic portion extending from an end portion of the first elastic portion.
    The head-up display device according to claim 3, wherein the second elastic portion is formed with an abutting portion that abuts on the reflector.
  5. 　前記当接部は、前記第２の弾性部の先端部が前記反射器と反対側を向くように前記第２の弾性部を折り曲げた折り曲げ部であることを特徴とする、請求項４に記載のヘッドアップディスプレイ装置。 The contact portion is a bent portion obtained by bending the second elastic portion such that a tip end portion of the second elastic portion faces the opposite side to the reflector. Head-up display device.
PCT/JP2018/031483 2017-09-15 2018-08-27 Head-up display device WO2019054163A1 (en)

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