WO2023095898A1 - Head-up display device - Google Patents

Head-up display device Download PDF

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Publication number
WO2023095898A1
WO2023095898A1 PCT/JP2022/043694 JP2022043694W WO2023095898A1 WO 2023095898 A1 WO2023095898 A1 WO 2023095898A1 JP 2022043694 W JP2022043694 W JP 2022043694W WO 2023095898 A1 WO2023095898 A1 WO 2023095898A1
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WO
WIPO (PCT)
Prior art keywords
shaft
shaft support
lever
holding member
low
Prior art date
Application number
PCT/JP2022/043694
Other languages
French (fr)
Japanese (ja)
Inventor
文吉 金子
哲太 樋口
貴大 山口
雅博 渡辺
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
Publication of WO2023095898A1 publication Critical patent/WO2023095898A1/en

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    • 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
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/18—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors
    • G02B7/182—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors for mirrors

Definitions

  • the present disclosure relates to a head-up display device.
  • the head-up display device described in Patent Document 1 includes a display that emits display light representing an image, a reflector that reflects the display light, and a cylindrical shaft provided at the end of the reflector. a supported portion having a supported portion, a support portion through which the shaft portion is inserted to support the supported portion so as to be rotatable about the shaft portion, and a substantially U-shaped cross section, and the supported portion is formed by an inner surface of the substantially U-shaped cross section. and an elastic member that sandwiches the support portion.
  • the present disclosure has been made in view of the above actual situation, and an object thereof is to provide a head-up display device capable of reducing noise generated when mirrors rotate.
  • a head-up display device includes a display that emits display light representing an image, a mirror main body that reflects the display light, an axial portion, and a rotational force receiving portion.
  • a lever portion provided at an end portion of the mirror main body; a shaft support portion that supports the shaft portion so as to be rotatable around a rotation axis; a mirror rotating mechanism that rotates the mirror main body together with the lever about the rotation axis;
  • a holding member that holds in a direction along the rotation axis, and a material having a smaller coefficient of friction than the holding member, are sandwiched between the holding member and the shaft support portion or the lever portion, and the lever portion and the mirror main body.
  • a low-friction member that slides against the shaft support portion or the lever portion when the portion rotates.
  • FIG. 1 is a schematic diagram of a head-up display device according to an embodiment of the present disclosure
  • FIG. 1 is a perspective view of a mirror unit and mirror rotation mechanism according to an embodiment of the present disclosure
  • FIG. 1 is an exploded perspective view of a mirror unit and mirror rotation mechanism according to an embodiment of the present disclosure
  • FIG. 10 is an exploded perspective view of a lever portion and a support case according to an embodiment of the present disclosure
  • FIG. 4 is a perspective view of a lever portion, a support case, a clamping member, and a low friction member according to an embodiment of the present disclosure
  • FIG. 4 is a perspective view of the periphery of a shaft support section to which a low-friction member according to an embodiment of the present disclosure is attached;
  • FIG. 1 is a perspective view of a mirror unit and mirror rotation mechanism according to an embodiment of the present disclosure
  • FIG. 1 is an exploded perspective view of a mirror unit and mirror rotation mechanism according to an embodiment of the present disclosure
  • FIG. 10 is an
  • FIG. 4 is a perspective view of the periphery of the shaft support part in the process of mounting the low friction member according to the embodiment of the present disclosure
  • FIG. 4 is a perspective view of a shaft support section to which a clamping member and a low-friction member are attached according to an embodiment of the present disclosure
  • 4 is a perspective view of a lever portion, a support case, and a clamping member according to an embodiment of the present disclosure
  • FIG. 1 is a plan view of a low friction member according to an embodiment of the present disclosure
  • FIG. FIG. 11 is a perspective view of the periphery of a shaft support section to which a low-friction member according to a modified example of the present disclosure is attached
  • FIG. 11 is a partial cross-sectional view of a low friction member and a shaft support according to a modified example of the present disclosure
  • FIG. 5 is a schematic cross-sectional view of a shaft portion, a shaft support portion, a holding member, and a low-friction member according to a modified example of the present disclosure
  • a head-up display device 100 is mounted, for example, on a dashboard of an automobile.
  • the head-up display device 100 includes a housing 1, a display device 2, a plane mirror 3 as shown in FIG. 1, and a mirror unit 4 having a lever portion 6 and a support case 7 as shown in FIG. a holding member 80; a supporting member 9a; a holding member 9b; and, as shown in FIG.
  • the head-up display device 100 reflects the display light L, which represents an image containing various vehicle information emitted from the display device 2, by the flat mirror 3 and the mirror unit 4, and reflects the display light L onto the windshield 200 of the vehicle. to display a virtual image corresponding to this image.
  • the housing 1 is made of, for example, a light-shielding resin or the like, and has a box shape.
  • a display device 2, a plane mirror 3, a mirror unit 4, a mirror rotation mechanism 5, and the like are accommodated in the housing 1.
  • FIG. An opening 10 for passing the display light L toward the windshield 200 is formed in a portion of the housing 1 facing the windshield 200 .
  • the opening 10 is covered with a translucent cover 11 .
  • the display 2 emits display light L representing an image containing various vehicle information.
  • the display device 2 may be a transmissive liquid crystal display composed of a liquid crystal panel and a backlight device, or may be a self-luminous display.
  • the plane mirror 3 reflects the display light L emitted by the display 2 toward the mirror unit 4 .
  • the plane mirror 3 may be a concave mirror.
  • the mirror unit 4 is rotatably supported around the rotation axis AX and reflects the display light L from the plane mirror 3 toward the windshield 200 .
  • the mirror rotation mechanism 5 rotates the mirror unit 4 around the rotation axis AX. Specific configurations of the mirror unit 4 and the mirror rotating mechanism 5 will be described later.
  • the display light L reflected by the mirror unit 4 passes through the translucent cover 11 provided in the opening 10 of the housing 1 and travels toward the windshield 200 .
  • the display light L is reflected by the windshield 200 and travels toward the viewer E.
  • a virtual image is displayed at the front position F of the windshield 200 so that the viewer E can visually recognize it.
  • the mirror unit 4 includes a mirror body portion 40, a lever portion 6, and a shaft portion 8.
  • the mirror main body 40 reflects the display light L from the plane mirror 3 toward the windshield 200 .
  • the mirror main body 40 is composed of a concave mirror in which a reflective film is formed on the surface of a base material made of, for example, a synthetic resin material by means of vapor deposition or the like.
  • the mirror main body 40 includes a reflecting surface 40a concavely curved in the X direction (longitudinal direction) and the Y direction (lateral direction).
  • the shaft portion 8 is positioned at one end portion (the right end portion in FIG. 3) of the mirror main body portion 40 in the X direction and has a cylindrical shape extending along the rotation axis AX.
  • the rotation axis AX extends along the X direction and the width direction of the vehicle, and is positioned at the center of the reflecting surface 40a in the Y direction.
  • the shaft portion 8 is rotatably supported by the support member 9a about the rotation axis AX.
  • the holding member 9b is made of metal such as aluminum having a substantially U-shaped cross section. The holding member 9b holds the shaft portion 8 rotatably with respect to the support member 9a.
  • the lever part 6 is made of, for example, resin to which glass fiber is added, and is rotatably supported by the support case 7 around the rotation axis AX.
  • the lever portion 6 is formed separately from the mirror main body portion 40, and is attached to the attached portion 40b at the other end portion (the left end portion in FIG. 3) of the mirror main body portion 40 in the X direction.
  • the lever portion 6 is provided on the reflecting surface 40 a side of the mirror body portion 40 .
  • the lever portion 6 includes a shaft portion 61 , a rotational force receiving portion 62 , a lever body portion 63 and an attachment portion 64 .
  • the attachment portion 64 has a plate shape extending in the Y direction and is attached to the attached portion 40b (see FIG. 3) of the mirror body portion 40. As shown in FIG. 4 , the lever portion 6 includes a shaft portion 61 , a rotational force receiving portion 62 , a lever body portion 63 and an attachment portion 64 .
  • the attachment portion 64 has a plate shape extending in the Y direction and is attached to the attached portion 40b (see FIG. 3) of the mirror body portion 40. As shown in FIG.
  • the lever main body 63 has a substantially rectangular plate shape extending in a direction orthogonal to the rotation axis AX.
  • the shaft portion 61 is positioned on the outer surface of the lever main body portion 63 in the X direction, and is positioned on the rotation axis AX.
  • the shaft portion 61 has a substantially hemispherical shape with the vertex facing outward in the X direction.
  • the shaft portion 61 includes a plurality of pieces 61a, 61b, and 61c arranged at equal angular intervals around the rotation axis AX.
  • the rotational force receiving portion 62 is formed as a rack gear having teeth arranged in the Y direction and meshing with a later-described gear 72 of the mirror rotating mechanism 5 .
  • the rotational force receiving portion 62 is located on the end surface of the mirror main body portion 40 of the lever main body portion 63 on the reflected light emitting side.
  • the lever portion 6 has a locking portion 65.
  • the locking portion 65 is provided in a convex shape on the back side of the shaft portion 61 (see FIG. 4).
  • the locking portion 65 is fitted into the through hole 82b of the holding member 80, as shown in FIG.
  • the engaging portion 65 is formed in a rectangular convex shape having an inclined surface whose height increases along the inserting direction J1 of the holding member 80 .
  • the mirror rotation mechanism 5 rotates the mirror unit 4 about the rotation axis AX under the control of a control unit (not shown), thereby causing the mirror unit 4 to reflect the light.
  • the irradiation position of the display light L on the windshield 200 (see FIG. 1) is adjusted.
  • the mirror rotation mechanism 5 includes a motor 71 , a gear 72 , a screw gear 71 a and a support case 7 .
  • the screw gear 71 a extends along the Y direction, is connected to the output shaft of the motor 71 , and meshes with the gear 72 .
  • the gear 72 is a spur gear that is rotatably supported around a rotation axis extending along the X direction.
  • the gear 72 meshes with the screw gear 71 a and the rotational force receiving portion 62 of the lever portion 6 .
  • the motor 71 rotates the helical gear 71a under the control of a control section (not shown).
  • the rotational force of the screw gear 71 a is transmitted to the rotational force receiving portion 62 via the gear 72 .
  • the lever portion 6 rotates about the rotation axis AX together with the mirror body portion 40 based on the force transmitted to the rotational force receiving portion 62 .
  • the support case 7 supports the motor 71, the gear 72 and the screw gear 71a, and is installed inside the housing 1 (see FIG. 1).
  • the support case 7 is made of resin to which glass fibers are added.
  • the support case 7 has a shaft support portion 75 and a gear housing portion 76 .
  • the gear housing portion 76 houses the screw gear 71 a and the gear 72 .
  • the shaft support portion 75 supports the shaft portion 61 of the lever portion 6 so as to be rotatable around the rotation axis AX.
  • the shaft support portion 75 includes a peripheral wall portion 75s, a ceiling portion 75t, a contact portion 75j, and a locking portion 75a.
  • the peripheral wall portion 75 s has a tubular shape surrounding the shaft portion 61 .
  • the ceiling portion 75t is formed to cover the end portion of the peripheral wall portion 75s and has a dome shape along the spherical surface of the shaft portion 61 .
  • the locking portion 75a is formed in a convex shape at the center of the outer surface of the ceiling portion 75t. As shown in FIG.
  • the engaging portion 75a has a substantially columnar shape with a distal end surface inclined so as to increase in height along the insertion direction J1 of the holding member 80.
  • the contact portion 75j is formed on the outer surface of the ceiling portion 75t in the shape of a ring that surrounds the locking portion 75a.
  • the contact portion 75j sandwiches the low friction member 90 with the sandwiching member 80 .
  • the contact portion 75j has a semicircular cross-section that bulges toward the low-friction member 90. As shown in FIG.
  • the holding member 80 holds the shaft portion 61 and the shaft support portion 75 from the outside in the X direction, and rotates with the lever portion 6 with respect to the support case 7 .
  • the holding member 80 is formed in an elastically deformable U-plate shape, and is, for example, a metal fitting made of metal such as aluminum.
  • the holding member 80 has two walls 81 and 82 facing each other. With the holding member 80 attached, the two walls 81 and 82 are aligned along the rotation axis AX and extend in a direction orthogonal to the rotation axis AX.
  • the wall portion 81 includes a pressing portion 81 a that presses a later-described sliding portion 91 (see FIG.
  • the pressing portion 81a has a dome shape, and a through hole 81b is formed in the center of the pressing portion 81a.
  • the engaging portion 75a of the shaft support portion 75 passes through the through hole 81b.
  • the wall portion 82 is positioned around the locking portion 65 of the lever portion 6, and pushes the later-described adhesive portion 92 (see FIG. 7) of the low-friction member 90 toward this periphery.
  • a through hole 82b is formed in the wall portion 82 .
  • the locking portion 65 is fitted into the through hole 82b.
  • the through hole 82 b has a rectangular shape corresponding to the locking portion 65 .
  • the wall portions 81 and 82 have inclined portions 81k and 82k that are inclined away from each other on their tip sides.
  • Each of the inclined portions 81k and 82k has a semi-disc shape.
  • the inclined portions 81 k and 82 k facilitate mounting of the holding member 80 on the shaft portion 61 and the shaft support portion 75 .
  • the low-friction member 90 is provided along the inner surface of the holding member 80 and sandwiched between the holding member 80 and the shaft portion 61 and the shaft support portion 75 .
  • the low-friction member 90 reduces frictional force generated between the holding member 80 and the shaft portion 61 and the shaft support portion 75 .
  • the low-friction member 90 is made of a material having a coefficient of friction smaller than that of the holding member 80 and the support case 7, such as nylon, preferably a slidable material including PA6 (nylon 6).
  • the coefficient of friction of the low-friction member 90 is, for example, 0.16 to 0.25, and the coefficient of friction of the support case 7 is, for example, 0.35.
  • the friction coefficient of the holding member 80 (aluminum) is, for example, 0.82.
  • the low friction member 90 is formed in a flexible sheet shape.
  • the low-friction member 90 includes a sliding portion 91 , an adhesive portion 92 and a connecting portion 93 .
  • the sliding portion 91 is formed in an annular sheet shape.
  • a through-hole 91a (see FIG. 6) through which the engaging portion 75a passes is formed in the center of the sliding portion 91.
  • the sliding portion 91 is sandwiched between the contact portion 75j of the shaft support portion 75 (see FIG. 6) and the pressing portion 81a of the sandwiching member 80 (see FIG. 8).
  • the sliding portion 91 rotates about the rotation axis AX together with the holding member 80 and slides on the contact portion 75j.
  • the bonding portion 92 is formed in a rectangular frame shape.
  • the length of each side of the adhesive portion 92 is greater than the diameter of the sliding portion 91 .
  • a through hole 92 a through which the engaging portion 65 of the lever portion 6 passes is formed in the bonding portion 92 .
  • the through hole 92a has a rectangular shape.
  • the adhesion portion 92 is adhered around the engaging portion 65 of the lever portion 6 by adhesion means (not shown) such as double-sided tape.
  • the connecting portion 93 connects between the sliding portion 91 and the bonding portion 92 .
  • the connecting portion 93 has a rectangular shape and a width smaller than the diameter of the sliding portion 91 .
  • the holding member 80 is inserted outside the shaft portion 61 and the shaft support portion 75 along the insertion direction J1 perpendicular to the rotation axis AX.
  • the wall portions 81 and 82 are elastically deformed so as to separate from each other along the inclined surfaces of the locking portions 65 and 75a.
  • the engaging portion 75a is fitted into the through hole 81b of the wall portion 81, and the engaging portion 65 is fitted into the through hole 82b of the wall portion .
  • the pressing portion 81 a of the wall portion 81 presses the sliding portion 91 of the low friction member 90 toward the contact portion 75 j of the shaft support portion 75 .
  • the clamping member 80 and the low-friction member 90 rotate around the rotation axis AX with respect to the shaft support 75 together with the lever portion 6 .
  • the sliding portion 91 of the low-friction member 90 rotates about the rotation axis AX so as to slide on the contact portion 75j.
  • the frictional force acting between the holding member 80 and the shaft support portion 75 is reduced by the low-friction member 90 .
  • the head-up display device 100 includes a display device 2 that emits display light L representing an image, a mirror main body 40 that reflects the display light L, a shaft portion 61 and a rotational force receiving portion 62.
  • the mirror Rotational force is transmitted to the lever portion 6 provided at the end portion of the main body portion 40, the shaft support portion 75 that supports the shaft portion 61 so as to be rotatable around the rotation axis AX, and the rotational force receiving portion 62 of the lever portion 6.
  • the mirror rotating mechanism 5 that rotates the mirror main body 40 together with the lever 6 about the rotation axis AX, and the shaft 61 and the shaft support 75 while making the shaft 61 rotatable with respect to the shaft support 75 .
  • the holding member 80 which is an example of a holding member that holds in the direction along the rotation axis AX, is sandwiched between the holding member 80 and the shaft support portion 75, 6 and a low-friction member 90 that slides against the shaft support portion 75 when the mirror body portion 40 rotates.
  • the holding member 80 holds the shaft portion 61 and the shaft support portion 75 from the outside in the direction along the rotation axis AX, and rotates together with the lever portion 6 .
  • the low-friction member 90 slides against the shaft support portion 75 when rotating together with the holding member 80 . According to this configuration, the low-friction member 90 can reduce the frictional force acting between the clamping member 80 and the shaft support portion 75, thereby reducing noise generated when the mirror body portion 40 rotates.
  • the lever portion 6 receives the rotational force from the mirror rotating mechanism 5 via the rotational force receiving portion 62 . For this reason, the frictional force acting between the clamping member 80 and the shaft support portion 75 tends to increase, and noise tends to occur. Therefore, providing the low friction member 90 is beneficial.
  • the low-friction member 90 includes a sliding portion 91 sandwiched between the clamping member 80 and the shaft support portion 75, and an adhesive portion sandwiched between the clamping member 80 and the lever portion 6 and adhered to the lever portion 6. 92 , and a connecting portion 93 that connects between the sliding portion 91 and the adhesive portion 92 . According to this configuration, since the adhesive portion 92 is adhered to the lever portion 6, the low friction member 90 is prevented from coming off when the holding member 80 is attached. Therefore, it becomes easy to attach the holding member 80 with the low friction member 90 interposed therebetween.
  • the low-friction member 90 is sandwiched between the holding member 80 and the shaft support portion 75 and has a ring-shaped sheet-like sliding portion 91 .
  • the shaft support portion 75 is inserted through a through hole 91 a that is an example of a first through hole formed in the low-friction member 90 and a through hole 81 b that is an example of a second through hole formed in the holding member 80 .
  • a locking portion 75a formed in a convex shape is provided. According to this configuration, the low friction member 90 and the holding member 80 can be positioned by the locking portion 75a.
  • the lever portion 6 is made of resin to which glass fiber is added. As a comparative example, in a configuration without the low-friction member 90, the holding member 80 comes into contact with the glass fiber included in the lever portion 6 and causes noise. Contact with fibers is suppressed, and noise can be reduced.
  • the shape of the low friction member 90 in the above embodiment can be changed.
  • the adhesive portion 92 and the connecting portion 93 of the low-friction member 90 may be omitted, and the low-friction member 90 may be composed only of the sliding portion 91 .
  • the low-friction member 190 may be formed in the shape of an annular sheet, and may have a cut portion 191 in which part of the outer peripheral surface is linear.
  • the engaging portion 75 a is inserted (press-fitted) into the through hole 191 a of the low friction member 190 .
  • the holding member 80 since the cut portion 191 faces the insertion direction J1 of the holding member 80, the holding member 80 is prevented from contacting the low-friction member 190 when the holding member 80 is inserted. Accordingly, when the holding member 80 is inserted, the holding member 80 is prevented from flipping the low-friction member 190 away from the engaging portion 75a.
  • adhesive means such as double-sided tape.
  • the straight line center of the cut portion 191 is located on the contact portion 75j and at the vertex of the contact portion 75j.
  • the clamping member 80 has a substantially U-shaped plate shape that clamps the shaft portion 61 and the shaft support portion 75 from the outside. It may be a holding member that can be held from a direction along the rotation axis AX while being rotatable with respect to.
  • the holding member 180 is a columnar pin 183 that passes through the rotation axis AX and is inserted through the pin 183 so that the shaft portion 61 and the shaft support portion 75 extend in the direction along the rotation axis AX.
  • a push nut 182 which is an example of a holding pressing member, is provided.
  • the pin 183 penetrates through the central axis of the shaft portion 61 .
  • a first end (upper end in FIG.
  • the pin 183 is fitted into the inner surface of the ceiling portion 75t of the shaft support portion 75.
  • a second end portion (lower end portion in FIG. 13 ) of the pin 183 is exposed on the rear surface side of the shaft portion 61 .
  • An annular push nut 182 is screwed onto the second end of the pin 183 .
  • An annular sheet-shaped low-friction member 290 is provided between the push nut 182 and the back surface of the shaft portion 61 .
  • the low friction member 290 reduces the frictional force between the push nut 182 of the holding member 180 and the back surface of the shaft portion 61 .
  • the first end of the pin 183 passes through the ceiling portion 75t of the shaft support portion 75, and the push nut 182 is screwed to the first end.
  • a low friction member 290 may be provided between the push nut 182 and the ceiling portion 75t.
  • the lever portion 6 is formed separately from the mirror body portion 40, but it is not limited to this and may be formed integrally with the mirror body portion 40.
  • the head-up display device 100 is mounted on a vehicle in the above embodiment, it is not limited to this, and may be mounted on a vehicle such as an airplane or a ship. Further, the projected member is not limited to the windshield 200, and may be a dedicated combiner.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
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Abstract

The purpose of the present invention is to provide a head-up display device that enables a reduction in noise occurring when a mirror is rotated.　This head-up display device comprises: a display that emits display light representing an image; a mirror body part that reflects the display light; a lever part (6) that has a shaft section and a rotational force receiving section (62) and is provided at an end of the mirror body part; a shaft support part (75) that supports the shaft section rotatably about a rotation axis AX; a mirror rotation mechanism that rotates the mirror body part together with the lever part (6) about the rotation axis AX by transmitting rotational force to the rotational force receiving section (62) of the lever part (6); a clamping member (80) that holds the shaft section and the shaft support part (75) in a direction along the rotation axis AX while making the shaft section rotatable with respect to the shaft support part (75); and a low-friction member (90) that comprises a material having a smaller friction coefficient than the clamping member (80), is put between the clamping member (80) and the shaft support part (75), and slides with respect to the shaft support part (75) when the lever part (6) and the mirror body part are rotated.

Description

ヘッドアップディスプレイ装置head-up display device
　本開示は、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.
　例えば、特許文献１に記載のヘッドアップディスプレイ装置は、画像を表す表示光を出射する表示器と、表示光を反射する反射部と、反射部の端部に設けられ、円筒状の軸部を有する被支持部と、軸部が挿通され被支持部を軸部を中心に回転可能に支持する支持部と、断面略コの字状をなし、断面略コの字状の内面によって被支持部及び支持部を挟持する弾性部材と、を備える。 For example, the head-up display device described in Patent Document 1 includes a display that emits display light representing an image, a reflector that reflects the display light, and a cylindrical shaft provided at the end of the reflector. a supported portion having a supported portion, a support portion through which the shaft portion is inserted to support the supported portion so as to be rotatable about the shaft portion, and a substantially U-shaped cross section, and the supported portion is formed by an inner surface of the substantially U-shaped cross section. and an elastic member that sandwiches the support portion.
特開２０１６－１８０７９６号公報JP 2016-180796 A
　上記特許文献１に記載の構成においては、反射部を回動させられる際に、弾性部材が支持部に対して摺動することにより、騒音が発生するおそれがある。 In the configuration described in Patent Document 1, when the reflecting section is rotated, the elastic member may slide against the supporting section, causing noise.
　本開示は、上記実状を鑑みてなされたものであり、ミラーの回転時に生じる騒音を低減させることができるヘッドアップディスプレイ装置を提供することを目的とする。 The present disclosure has been made in view of the above actual situation, and an object thereof is to provide a head-up display device capable of reducing noise generated when mirrors rotate.
　上記目的を達成するため、本開示に係るヘッドアップディスプレイ装置は、画像を表す表示光を出射する表示器と、前記表示光を反射するミラー本体部と、軸部及び回転力受け部を有し、前記ミラー本体部の端部に設けられるレバー部と、前記軸部を回転軸を中心に回転可能に支持する軸支持部と、前記レバー部の前記回転力受け部に回転力を伝達することにより、前記レバー部とともに前記ミラー本体部を前記回転軸を中心に回転させるミラー回転機構と、前記軸部を前記軸支持部に対して回転可能としつつ、前記軸部及び前記軸支持部を前記回転軸に沿う方向に保持する保持部材と、前記保持部材よりも摩擦係数が小さい材質からなり、前記保持部材と前記軸支持部又は前記レバー部の間に挟み込まれ、前記レバー部及び前記ミラー本体部の回転時に前記軸支持部又は前記レバー部に対して摺動する低摩擦部材と、を備える。 In order to achieve the above object, a head-up display device according to the present disclosure includes a display that emits display light representing an image, a mirror main body that reflects the display light, an axial portion, and a rotational force receiving portion. a lever portion provided at an end portion of the mirror main body; a shaft support portion that supports the shaft portion so as to be rotatable around a rotation axis; a mirror rotating mechanism that rotates the mirror main body together with the lever about the rotation axis; A holding member that holds in a direction along the rotation axis, and a material having a smaller coefficient of friction than the holding member, are sandwiched between the holding member and the shaft support portion or the lever portion, and the lever portion and the mirror main body. a low-friction member that slides against the shaft support portion or the lever portion when the portion rotates.
　本開示によれば、ヘッドアップディスプレイ装置において、ミラーの回転時に生じる騒音を低減させることができる。 According to the present disclosure, it is possible to reduce noise generated when mirrors rotate in a head-up display device.
本開示の一実施形態に係るヘッドアップディスプレイ装置の概略図である。1 is a schematic diagram of a head-up display device according to an embodiment of the present disclosure; FIG. 本開示の一実施形態に係るミラーユニット及びミラー回転機構の斜視図である。1 is a perspective view of a mirror unit and mirror rotation mechanism according to an embodiment of the present disclosure; FIG. 本開示の一実施形態に係るミラーユニット及びミラー回転機構の分解斜視図である。1 is an exploded perspective view of a mirror unit and mirror rotation mechanism according to an embodiment of the present disclosure; FIG. 本開示の一実施形態に係るレバー部及び支持ケースの分解斜視図である。FIG. 10 is an exploded perspective view of a lever portion and a support case according to an embodiment of the present disclosure; 本開示の一実施形態に係るレバー部、支持ケース、挟持部材及び低摩擦部材の斜視図である。FIG. 4 is a perspective view of a lever portion, a support case, a clamping member, and a low friction member according to an embodiment of the present disclosure; 本開示の一実施形態に係る低摩擦部材が装着された軸支持部の周辺の斜視図である。FIG. 4 is a perspective view of the periphery of a shaft support section to which a low-friction member according to an embodiment of the present disclosure is attached; 本開示の一実施形態に係る低摩擦部材が装着される途中の軸支持部の周辺の斜視図である。FIG. 4 is a perspective view of the periphery of the shaft support part in the process of mounting the low friction member according to the embodiment of the present disclosure; 本開示の一実施形態に係る挟持部材及び低摩擦部材が装着された軸支持部の斜視図である。FIG. 4 is a perspective view of a shaft support section to which a clamping member and a low-friction member are attached according to an embodiment of the present disclosure; 本開示の一実施形態に係るレバー部、支持ケース及び挟持部材の斜視図である。4 is a perspective view of a lever portion, a support case, and a clamping member according to an embodiment of the present disclosure; FIG. 本開示の一実施形態に係る低摩擦部材の平面図である。1 is a plan view of a low friction member according to an embodiment of the present disclosure; FIG. 本開示の変形例に係る低摩擦部材が装着された軸支持部の周辺の斜視図である。FIG. 11 is a perspective view of the periphery of a shaft support section to which a low-friction member according to a modified example of the present disclosure is attached; 本開示の変形例に係る低摩擦部材及び軸支持部の部分的な断面図である。FIG. 11 is a partial cross-sectional view of a low friction member and a shaft support according to a modified example of the present disclosure; 本開示の変形例に係る軸部、軸支持部、保持部材及び低摩擦部材の模式的な断面図である。FIG. 5 is a schematic cross-sectional view of a shaft portion, a shaft support portion, a holding member, and a low-friction member according to a modified example of the present disclosure;
　本開示に係るヘッドアップディスプレイ装置の一実施形態について、図面を参照して説明する。
　ヘッドアップディスプレイ装置１００は、例えば、自動車のダッシュボードに搭載されている。ヘッドアップディスプレイ装置１００は、図１に示すように、筐体１と、表示器２と、平面ミラー３と、図３に示すように、レバー部６を有するミラーユニット４と、支持ケース７を有するミラー回転機構５と、挟持部材８０と、支持部材９ａと、保持部材９ｂと、図５に示すように、低摩擦部材９０と、を備える。 An embodiment of a head-up display device according to the present disclosure will be described with reference to the drawings.
A head-up display device 100 is mounted, for example, on a dashboard of an automobile. The head-up display device 100 includes a housing 1, a display device 2, a plane mirror 3 as shown in FIG. 1, and a mirror unit 4 having a lever portion 6 and a support case 7 as shown in FIG. a holding member 80; a supporting member 9a; a holding member 9b; and, as shown in FIG.
　図１に示すように、ヘッドアップディスプレイ装置１００は、表示器２が出射した各種車両情報を含む画像を表す表示光Ｌを、平面ミラー３とミラーユニット４とで反射させ、車両のフロントガラス２００に照射し、この画像に対応する虚像を表示する。 As shown in FIG. 1, the head-up display device 100 reflects the display light L, which represents an image containing various vehicle information emitted from the display device 2, by the flat mirror 3 and the mirror unit 4, and reflects the display light L onto the windshield 200 of the vehicle. to display a virtual image corresponding to this image.
　筐体１は、例えば、遮光性の樹脂等により形成され、箱状をなす。筐体１内には、表示器２、平面ミラー３、ミラーユニット４及びミラー回転機構５等が収容されている。筐体１のフロントガラス２００に対向する部分には、表示光Ｌをフロントガラス２００に向けて通過させる開口部１０が形成されている。開口部１０は、透光性カバー１１に覆われている。 The housing 1 is made of, for example, a light-shielding resin or the like, and has a box shape. A display device 2, a plane mirror 3, a mirror unit 4, a mirror rotation mechanism 5, and the like are accommodated in the housing 1. FIG. An opening 10 for passing the display light L toward the windshield 200 is formed in a portion of the housing 1 facing the windshield 200 . The opening 10 is covered with a translucent cover 11 .
　表示器２は、各種車両情報を含む画像を表す表示光Ｌを出射する。表示器２は、液晶パネル及びバックライト装置から構成される透過型液晶ディスプレイであってもよいし、自発光型ディスプレイであってもよい。 The display 2 emits display light L representing an image containing various vehicle information. The display device 2 may be a transmissive liquid crystal display composed of a liquid crystal panel and a backlight device, or may be a self-luminous display.
　平面ミラー３は、表示器２が出射した表示光Ｌを、ミラーユニット４に向けて反射させる。なお、平面ミラー３は凹面鏡であってもよい。 The plane mirror 3 reflects the display light L emitted by the display 2 toward the mirror unit 4 . Incidentally, the plane mirror 3 may be a concave mirror.
　ミラーユニット４は、回転軸ＡＸを中心に回転可能に支持され、平面ミラー３からの表示光Ｌをフロントガラス２００に向けて反射する。ミラー回転機構５は、回転軸ＡＸを中心にミラーユニット４を回転させる。
　ミラーユニット４及びミラー回転機構５の具体的な構成については後述する。 The mirror unit 4 is rotatably supported around the rotation axis AX and reflects the display light L from the plane mirror 3 toward the windshield 200 . The mirror rotation mechanism 5 rotates the mirror unit 4 around the rotation axis AX.
Specific configurations of the mirror unit 4 and the mirror rotating mechanism 5 will be described later.
　ミラーユニット４で反射した表示光Ｌは、筐体１の開口部１０に設けられた透光性カバー１１を透過して、フロントガラス２００に向かう。表示光Ｌは、フロントガラス２００にて反射して視認者Ｅに向かう。これにより、フロントガラス２００の前方位置Ｆに視認者Ｅに視認可能に虚像が表示される。 The display light L reflected by the mirror unit 4 passes through the translucent cover 11 provided in the opening 10 of the housing 1 and travels toward the windshield 200 . The display light L is reflected by the windshield 200 and travels toward the viewer E. As a result, a virtual image is displayed at the front position F of the windshield 200 so that the viewer E can visually recognize it.
　図２及び図３に示すように、ミラーユニット４は、ミラー本体部４０と、レバー部６と、軸部８と、を備える。
　ミラー本体部４０は、平面ミラー３からの表示光Ｌをフロントガラス２００に向けて反射する。ミラー本体部４０は、例えば合成樹脂材料からなる基材の表面に、蒸着等の手段により反射膜を形成した凹面鏡からなる。ミラー本体部４０は、Ｘ方向（長手方向）及びＹ方向（短手方向）に凹状に湾曲する反射面４０ａを備える。 As shown in FIGS. 2 and 3, the mirror unit 4 includes a mirror body portion 40, a lever portion 6, and a shaft portion 8. As shown in FIGS.
The mirror main body 40 reflects the display light L from the plane mirror 3 toward the windshield 200 . The mirror main body 40 is composed of a concave mirror in which a reflective film is formed on the surface of a base material made of, for example, a synthetic resin material by means of vapor deposition or the like. The mirror main body 40 includes a reflecting surface 40a concavely curved in the X direction (longitudinal direction) and the Y direction (lateral direction).
　軸部８は、ミラー本体部４０のＸ方向の一端部（図３の右端部）に位置し、回転軸ＡＸに沿って延びる円柱状をなす。回転軸ＡＸは、Ｘ方向及び車両の幅方向に沿って延び、反射面４０ａのＹ方向の中央に位置する。軸部８は、支持部材９ａに回転軸ＡＸを中心に回転可能に支持される。
　保持部材９ｂは、断面略コの字状をなすアルミニウムなどの金具からなる。保持部材９ｂは、軸部８を支持部材９ａに対して回転可能に保持する。 The shaft portion 8 is positioned at one end portion (the right end portion in FIG. 3) of the mirror main body portion 40 in the X direction and has a cylindrical shape extending along the rotation axis AX. The rotation axis AX extends along the X direction and the width direction of the vehicle, and is positioned at the center of the reflecting surface 40a in the Y direction. The shaft portion 8 is rotatably supported by the support member 9a about the rotation axis AX.
The holding member 9b is made of metal such as aluminum having a substantially U-shaped cross section. The holding member 9b holds the shaft portion 8 rotatably with respect to the support member 9a.
　レバー部６は、例えば、ガラス繊維が添加された樹脂から形成され、支持ケース７に回転軸ＡＸ周りに回転可能に支持されている。レバー部６は、ミラー本体部４０とは別体で形成されていて、ミラー本体部４０のＸ方向の他端部（図３の左端部）の被取付部４０ｂに取り付けられる。レバー部６は、ミラー本体部４０の反射面４０ａ側に設けられている。 The lever part 6 is made of, for example, resin to which glass fiber is added, and is rotatably supported by the support case 7 around the rotation axis AX. The lever portion 6 is formed separately from the mirror main body portion 40, and is attached to the attached portion 40b at the other end portion (the left end portion in FIG. 3) of the mirror main body portion 40 in the X direction. The lever portion 6 is provided on the reflecting surface 40 a side of the mirror body portion 40 .
　詳しくは、図４に示すように、レバー部６は、軸部６１と、回転力受け部６２と、レバー本体部６３と、取付部６４と、を備える。
　取付部６４は、Ｙ方向に沿って延びる板状をなし、ミラー本体部４０の被取付部４０ｂ（図３参照）に取り付けられる。 Specifically, as shown in FIG. 4 , the lever portion 6 includes a shaft portion 61 , a rotational force receiving portion 62 , a lever body portion 63 and an attachment portion 64 .
The attachment portion 64 has a plate shape extending in the Y direction and is attached to the attached portion 40b (see FIG. 3) of the mirror body portion 40. As shown in FIG.
　レバー本体部６３は、回転軸ＡＸに直交する方向へ延びる略矩形板状をなす。
　軸部６１は、レバー本体部６３のＸ方向の外側の面に位置し、回転軸ＡＸ上に位置する。軸部６１は、頂点がＸ方向の外側を向く略半球状をなす。軸部６１は、回転軸ＡＸを中心に等角度間隔で配置された複数の片部６１ａ，６１ｂ，６１ｃを備える。 The lever main body 63 has a substantially rectangular plate shape extending in a direction orthogonal to the rotation axis AX.
The shaft portion 61 is positioned on the outer surface of the lever main body portion 63 in the X direction, and is positioned on the rotation axis AX. The shaft portion 61 has a substantially hemispherical shape with the vertex facing outward in the X direction. The shaft portion 61 includes a plurality of pieces 61a, 61b, and 61c arranged at equal angular intervals around the rotation axis AX.
　図３及び図４に示すように、回転力受け部６２は、ミラー回転機構５の後述する歯車７２と噛み合うＹ方向に歯が並ぶラックギアとして形成されている。回転力受け部６２は、レバー本体部６３におけるミラー本体部４０の反射光出射側の端面に位置する。 As shown in FIGS. 3 and 4, the rotational force receiving portion 62 is formed as a rack gear having teeth arranged in the Y direction and meshing with a later-described gear 72 of the mirror rotating mechanism 5 . The rotational force receiving portion 62 is located on the end surface of the mirror main body portion 40 of the lever main body portion 63 on the reflected light emitting side.
　図７に示すように、レバー部６は係止部６５を備える。係止部６５は、軸部６１（図４参照）の裏側に凸状に設けられている。係止部６５は、図９に示すように、挟持部材８０の貫通孔８２ｂに嵌まる。これにより、レバー部６及び挟持部材８０が一体的に回転可能となる。係止部６５は、挟持部材８０の挿入方向Ｊ１に沿って高さが高くなる傾斜面を有する矩形凸状に形成されている。 As shown in FIG. 7, the lever portion 6 has a locking portion 65. The locking portion 65 is provided in a convex shape on the back side of the shaft portion 61 (see FIG. 4). The locking portion 65 is fitted into the through hole 82b of the holding member 80, as shown in FIG. As a result, the lever portion 6 and the clamping member 80 can rotate integrally. The engaging portion 65 is formed in a rectangular convex shape having an inclined surface whose height increases along the inserting direction J1 of the holding member 80 .
　図２及び図３に示すように、ミラー回転機構５は、制御部（図示しない）による制御のもと、回転軸ＡＸを中心にミラーユニット４を回転させることにより、ミラーユニット４にて反射した表示光Ｌのフロントガラス２００（図１参照）への照射位置を調整する。
　詳しくは、ミラー回転機構５は、モータ７１と、歯車７２と、ねじ歯車７１ａと、支持ケース７と、を備える。
　ねじ歯車７１ａは、Ｙ方向に沿って延び、モータ７１の出力軸に連結され、歯車７２に噛み合う。歯車７２は、Ｘ方向に沿って延びる回転軸を中心に回転可能に支持される平歯車である。歯車７２は、ねじ歯車７１ａとレバー部６の回転力受け部６２に噛み合う。
　モータ７１は、制御部（図示しない）による制御のもと、ねじ歯車７１ａを回転させる。ねじ歯車７１ａの回転力は、歯車７２を介して、回転力受け部６２に伝達される。レバー部６は、回転力受け部６２に伝達された力に基づき、ミラー本体部４０とともに回転軸ＡＸを中心に回転する。 As shown in FIGS. 2 and 3, the mirror rotation mechanism 5 rotates the mirror unit 4 about the rotation axis AX under the control of a control unit (not shown), thereby causing the mirror unit 4 to reflect the light. The irradiation position of the display light L on the windshield 200 (see FIG. 1) is adjusted.
Specifically, the mirror rotation mechanism 5 includes a motor 71 , a gear 72 , a screw gear 71 a and a support case 7 .
The screw gear 71 a extends along the Y direction, is connected to the output shaft of the motor 71 , and meshes with the gear 72 . The gear 72 is a spur gear that is rotatably supported around a rotation axis extending along the X direction. The gear 72 meshes with the screw gear 71 a and the rotational force receiving portion 62 of the lever portion 6 .
The motor 71 rotates the helical gear 71a under the control of a control section (not shown). The rotational force of the screw gear 71 a is transmitted to the rotational force receiving portion 62 via the gear 72 . The lever portion 6 rotates about the rotation axis AX together with the mirror body portion 40 based on the force transmitted to the rotational force receiving portion 62 .
　支持ケース７は、モータ７１、歯車７２及びねじ歯車７１ａを支持し、筐体１（図１参照）内に設置されている。支持ケース７は、ガラス繊維が添加された樹脂により形成されている。
　図３及び図４に示すように、支持ケース７は、軸支持部７５と、歯車収容部７６と、を備える。
　歯車収容部７６は、ねじ歯車７１ａ及び歯車７２を収容する。 The support case 7 supports the motor 71, the gear 72 and the screw gear 71a, and is installed inside the housing 1 (see FIG. 1). The support case 7 is made of resin to which glass fibers are added.
As shown in FIGS. 3 and 4 , the support case 7 has a shaft support portion 75 and a gear housing portion 76 .
The gear housing portion 76 houses the screw gear 71 a and the gear 72 .
　図４に示すように、軸支持部７５は、レバー部６の軸部６１を回転軸ＡＸを中心に回転可能に支持する。
　軸支持部７５は、周壁部７５ｓと、天井部７５ｔと、接触部７５ｊと、係止部７５ａと、を備える。
　周壁部７５ｓは、軸部６１の周囲を囲む筒状をなす。天井部７５ｔは、周壁部７５ｓの端部を塞ぐように形成され、軸部６１の球面に沿うドーム状をなす。
　係止部７５ａは、天井部７５ｔの外面の中央に凸状に形成されている。図６に示すように、係止部７５ａは、先端面が挟持部材８０の挿入方向Ｊ１に沿って高さが高くなるように傾斜した略円柱状をなす。
　接触部７５ｊは、天井部７５ｔの外面に係止部７５ａの周囲を囲むリング凸状に形成されている。接触部７５ｊは、挟持部材８０との間で低摩擦部材９０を挟み込む。接触部７５ｊは、低摩擦部材９０に向けて膨らむ断面半円状をなしている。 As shown in FIG. 4, the shaft support portion 75 supports the shaft portion 61 of the lever portion 6 so as to be rotatable around the rotation axis AX.
The shaft support portion 75 includes a peripheral wall portion 75s, a ceiling portion 75t, a contact portion 75j, and a locking portion 75a.
The peripheral wall portion 75 s has a tubular shape surrounding the shaft portion 61 . The ceiling portion 75t is formed to cover the end portion of the peripheral wall portion 75s and has a dome shape along the spherical surface of the shaft portion 61 .
The locking portion 75a is formed in a convex shape at the center of the outer surface of the ceiling portion 75t. As shown in FIG. 6, the engaging portion 75a has a substantially columnar shape with a distal end surface inclined so as to increase in height along the insertion direction J1 of the holding member 80. As shown in FIG.
The contact portion 75j is formed on the outer surface of the ceiling portion 75t in the shape of a ring that surrounds the locking portion 75a. The contact portion 75j sandwiches the low friction member 90 with the sandwiching member 80 . The contact portion 75j has a semicircular cross-section that bulges toward the low-friction member 90. As shown in FIG.
　図４及び図５に示すように、挟持部材８０は、軸部６１及び軸支持部７５をＸ方向の外側から挟持し、レバー部６とともに支持ケース７に対して回転する。挟持部材８０は、弾性変形可能なＵ字板状に形成され、例えば、アルミニウム等の金属からなる金具である。
　図８に示すように、挟持部材８０は、互いに対面する２つの壁部８１，８２を有する。挟持部材８０が装着された状態で、２つの壁部８１，８２は、回転軸ＡＸに沿って並び、回転軸ＡＸに直交する方向に延びる。壁部８１は、低摩擦部材９０の後述する摺動部９１（図６参照）を軸支持部７５の接触部７５ｊに向けて押す押圧部８１ａを備える。押圧部８１ａは、ドーム状をなし、押圧部８１ａの中央には貫通孔８１ｂが形成されている。貫通孔８１ｂには、軸支持部７５の係止部７５ａが通過している。 As shown in FIGS. 4 and 5 , the holding member 80 holds the shaft portion 61 and the shaft support portion 75 from the outside in the X direction, and rotates with the lever portion 6 with respect to the support case 7 . The holding member 80 is formed in an elastically deformable U-plate shape, and is, for example, a metal fitting made of metal such as aluminum.
As shown in FIG. 8, the holding member 80 has two walls 81 and 82 facing each other. With the holding member 80 attached, the two walls 81 and 82 are aligned along the rotation axis AX and extend in a direction orthogonal to the rotation axis AX. The wall portion 81 includes a pressing portion 81 a that presses a later-described sliding portion 91 (see FIG. 6) of the low-friction member 90 toward the contact portion 75 j of the shaft support portion 75 . The pressing portion 81a has a dome shape, and a through hole 81b is formed in the center of the pressing portion 81a. The engaging portion 75a of the shaft support portion 75 passes through the through hole 81b.
　図９に示すように、壁部８２は、レバー部６の係止部６５の周囲に位置し、低摩擦部材９０の後述する接着部９２（図７参照）を、この周囲に向けて押す。壁部８２には、貫通孔８２ｂが形成されている。貫通孔８２ｂには、係止部６５が嵌まる。貫通孔８２ｂは、係止部６５に対応する矩形状をなす。係止部６５が貫通孔８２ｂに嵌まることにより、挟持部材８０がレバー部６とともに回転軸ＡＸを中心に回転する。このとき、挟持部材８０及び低摩擦部材９０は、軸支持部７５に対して相対回転する。 As shown in FIG. 9, the wall portion 82 is positioned around the locking portion 65 of the lever portion 6, and pushes the later-described adhesive portion 92 (see FIG. 7) of the low-friction member 90 toward this periphery. A through hole 82b is formed in the wall portion 82 . The locking portion 65 is fitted into the through hole 82b. The through hole 82 b has a rectangular shape corresponding to the locking portion 65 . By fitting the engaging portion 65 into the through hole 82b, the clamping member 80 rotates together with the lever portion 6 around the rotation axis AX. At this time, the holding member 80 and the low-friction member 90 rotate relative to the shaft support portion 75 .
　図８に示すように、壁部８１，８２は、それぞれの先端側に互いに離れるように傾斜した傾斜部８１ｋ，８２ｋを有する。傾斜部８１ｋ，８２ｋは、それぞれ半円板状をなす。傾斜部８１ｋ，８２ｋにより、軸部６１及び軸支持部７５に対する挟持部材８０の装着が容易となる。 As shown in FIG. 8, the wall portions 81 and 82 have inclined portions 81k and 82k that are inclined away from each other on their tip sides. Each of the inclined portions 81k and 82k has a semi-disc shape. The inclined portions 81 k and 82 k facilitate mounting of the holding member 80 on the shaft portion 61 and the shaft support portion 75 .
　図６及び図８に示すように、低摩擦部材９０は、挟持部材８０の内面に沿って設けられ、挟持部材８０と軸部６１及び軸支持部７５の間に挟み込まれる。低摩擦部材９０は、挟持部材８０と軸部６１及び軸支持部７５の間に生じる摩擦力を低減する。低摩擦部材９０は、挟持部材８０及び支持ケース７よりも摩擦係数が小さい材質、例えば、ナイロン、好ましくはＰＡ６（６ナイロン）を含む摺動性素材からなる。低摩擦部材９０の摩擦係数は、例えば、０．１６～０．２５であり、支持ケース７の摩擦係数は、例えば、０．３５である。挟持部材８０（アルミニウム）の摩擦係数は、例えば、０．８２である。低摩擦部材９０は、可撓性を有するシート状に形成されている。 As shown in FIGS. 6 and 8, the low-friction member 90 is provided along the inner surface of the holding member 80 and sandwiched between the holding member 80 and the shaft portion 61 and the shaft support portion 75 . The low-friction member 90 reduces frictional force generated between the holding member 80 and the shaft portion 61 and the shaft support portion 75 . The low-friction member 90 is made of a material having a coefficient of friction smaller than that of the holding member 80 and the support case 7, such as nylon, preferably a slidable material including PA6 (nylon 6). The coefficient of friction of the low-friction member 90 is, for example, 0.16 to 0.25, and the coefficient of friction of the support case 7 is, for example, 0.35. The friction coefficient of the holding member 80 (aluminum) is, for example, 0.82. The low friction member 90 is formed in a flexible sheet shape.
　詳しくは、図１０に示すように、低摩擦部材９０は、摺動部９１と、接着部９２と、連結部９３と、を備える。
　摺動部９１は、円環シート状に形成されている。摺動部９１の中央には、係止部７５ａが通過する貫通孔９１ａ（図６参照）が形成されている。摺動部９１は、軸支持部７５の接触部７５ｊ（図６参照）と挟持部材８０の押圧部８１ａ（図８参照）の間に挟み込まれている。摺動部９１は、挟持部材８０とともに回転軸ＡＸを中心に回転し、接触部７５ｊに摺動する。 Specifically, as shown in FIG. 10 , the low-friction member 90 includes a sliding portion 91 , an adhesive portion 92 and a connecting portion 93 .
The sliding portion 91 is formed in an annular sheet shape. A through-hole 91a (see FIG. 6) through which the engaging portion 75a passes is formed in the center of the sliding portion 91. As shown in FIG. The sliding portion 91 is sandwiched between the contact portion 75j of the shaft support portion 75 (see FIG. 6) and the pressing portion 81a of the sandwiching member 80 (see FIG. 8). The sliding portion 91 rotates about the rotation axis AX together with the holding member 80 and slides on the contact portion 75j.
　図７に示すように、接着部９２は、矩形枠状で形成されている。接着部９２の各辺の長さは、摺動部９１の直径よりも大きい。接着部９２には、レバー部６の係止部６５が通過する貫通孔９２ａが形成されている。貫通孔９２ａは、矩形状をなす。接着部９２は、両面テープ等の接着手段（図示略）により、レバー部６における係止部６５の周囲に接着される。
　連結部９３は、摺動部９１及び接着部９２の間を連結する。連結部９３は、長方形状をなし、摺動部９１の直径よりも小さい幅を有する。 As shown in FIG. 7, the bonding portion 92 is formed in a rectangular frame shape. The length of each side of the adhesive portion 92 is greater than the diameter of the sliding portion 91 . A through hole 92 a through which the engaging portion 65 of the lever portion 6 passes is formed in the bonding portion 92 . The through hole 92a has a rectangular shape. The adhesion portion 92 is adhered around the engaging portion 65 of the lever portion 6 by adhesion means (not shown) such as double-sided tape.
The connecting portion 93 connects between the sliding portion 91 and the bonding portion 92 . The connecting portion 93 has a rectangular shape and a width smaller than the diameter of the sliding portion 91 .
　次に、レバー部６、支持ケース７、挟持部材８０及び低摩擦部材９０の組み立て作業について説明する。この作業は、例えば、人により行われる。
　まず、図４に示すように、レバー部６の軸部６１を回転軸ＡＸに沿う方向から支持ケース７の軸支持部７５内に挿入する。
　次に、図７に示すように、低摩擦部材９０の接着部９２を両面テープ等の接着手段（図示略）によりレバー部６における係止部６５の周囲に接着する。そして、図６に示すように、摺動部９１を係止部７５ａに近づけることにより、低摩擦部材９０の連結部９３を撓ませて、軸支持部７５の係止部７５ａに摺動部９１の貫通孔９１ａを通過させる。これにより、係止部７５ａが摺動部９１の貫通孔９１ａ内に圧入されて、摺動部９１が接触部７５ｊ上に仮止めされる。 Next, the operation of assembling the lever portion 6, the support case 7, the clamping member 80 and the low friction member 90 will be described. This work is performed by a person, for example.
First, as shown in FIG. 4, the shaft portion 61 of the lever portion 6 is inserted into the shaft support portion 75 of the support case 7 along the rotation axis AX.
Next, as shown in FIG. 7, the adhesion portion 92 of the low-friction member 90 is adhered around the engaging portion 65 of the lever portion 6 by adhesion means (not shown) such as double-sided tape. Then, as shown in FIG. 6, by bringing the sliding portion 91 closer to the engaging portion 75a, the connecting portion 93 of the low-friction member 90 is bent, and the sliding portion 91 is moved to the engaging portion 75a of the shaft support portion 75. As shown in FIG. through the through hole 91a. As a result, the locking portion 75a is press-fitted into the through hole 91a of the sliding portion 91, and the sliding portion 91 is temporarily fixed on the contact portion 75j.
　次に、挟持部材８０を回転軸ＡＸに直交する挿入方向Ｊ１に沿って軸部６１及び軸支持部７５の外側へ挿入する。この際、図８及び図９に示すように、壁部８１，８２は、係止部６５，７５ａの傾斜面に沿って互いに離れるように弾性変形する。挟持部材８０の挿入が完了すると、壁部８１の貫通孔８１ｂ内に係止部７５ａが嵌まり、壁部８２の貫通孔８２ｂ内に係止部６５が嵌まる。これにより、挟持部材８０の装着が完了する。この状態では、壁部８１の押圧部８１ａは、低摩擦部材９０の摺動部９１を軸支持部７５の接触部７５ｊに向けて押し付ける。 Next, the holding member 80 is inserted outside the shaft portion 61 and the shaft support portion 75 along the insertion direction J1 perpendicular to the rotation axis AX. At this time, as shown in FIGS. 8 and 9, the wall portions 81 and 82 are elastically deformed so as to separate from each other along the inclined surfaces of the locking portions 65 and 75a. When the insertion of the holding member 80 is completed, the engaging portion 75a is fitted into the through hole 81b of the wall portion 81, and the engaging portion 65 is fitted into the through hole 82b of the wall portion . This completes the mounting of the holding member 80 . In this state, the pressing portion 81 a of the wall portion 81 presses the sliding portion 91 of the low friction member 90 toward the contact portion 75 j of the shaft support portion 75 .
　ミラー回転機構５が回転軸ＡＸを中心にミラーユニット４を回転させると、挟持部材８０及び低摩擦部材９０がレバー部６とともに軸支持部７５に対して回転軸ＡＸを中心に回転する。このとき、低摩擦部材９０の摺動部９１は、接触部７５ｊに対して摺動するように回転軸ＡＸを中心に回転する。この際、低摩擦部材９０により、挟持部材８０と軸支持部７５の間で作用する摩擦力が低減される。 When the mirror rotation mechanism 5 rotates the mirror unit 4 around the rotation axis AX, the clamping member 80 and the low-friction member 90 rotate around the rotation axis AX with respect to the shaft support 75 together with the lever portion 6 . At this time, the sliding portion 91 of the low-friction member 90 rotates about the rotation axis AX so as to slide on the contact portion 75j. At this time, the frictional force acting between the holding member 80 and the shaft support portion 75 is reduced by the low-friction member 90 .
　（効果）
　以上、説明した一実施形態によれば、以下の効果を奏する。
　（１）ヘッドアップディスプレイ装置１００は、画像を表す表示光Ｌを出射する表示器２と、表示光Ｌを反射するミラー本体部４０と、軸部６１及び回転力受け部６２を有し、ミラー本体部４０の端部に設けられるレバー部６と、軸部６１を回転軸ＡＸを中心に回転可能に支持する軸支持部７５と、レバー部６の回転力受け部６２に回転力を伝達することにより、レバー部６とともにミラー本体部４０を回転軸ＡＸを中心に回転させるミラー回転機構５と、軸部６１を軸支持部７５に対して回転可能としつつ、軸部６１及び軸支持部７５を回転軸ＡＸに沿う方向に保持する保持部材の一例である挟持部材８０と、挟持部材８０よりも摩擦係数が小さい材質からなり、挟持部材８０と軸支持部７５の間に挟み込まれ、レバー部６及びミラー本体部４０の回転時に軸支持部７５に対して摺動する低摩擦部材９０と、を備える。挟持部材８０は、軸部６１及び軸支持部７５を回転軸ＡＸに沿う方向における外側から挟持し、レバー部６とともに回転する。低摩擦部材９０は、挟持部材８０とともに回転する際に軸支持部７５に対して摺動する。
　この構成によれば、低摩擦部材９０により、挟持部材８０と軸支持部７５の間に作用する摩擦力を低減し、ミラー本体部４０の回転時に生じる騒音を低減することができる。
　特に、レバー部６は、回転力受け部６２を介してミラー回転機構５からの回転力を受ける。このため、挟持部材８０と軸支持部７５の間で作用する摩擦力が大きくなりやすく、騒音が生じ易いため、低摩擦部材９０を設けることは有益である。 (effect)
According to the embodiment described above, the following effects are obtained.
(1) The head-up display device 100 includes a display device 2 that emits display light L representing an image, a mirror main body 40 that reflects the display light L, a shaft portion 61 and a rotational force receiving portion 62. The mirror Rotational force is transmitted to the lever portion 6 provided at the end portion of the main body portion 40, the shaft support portion 75 that supports the shaft portion 61 so as to be rotatable around the rotation axis AX, and the rotational force receiving portion 62 of the lever portion 6. As a result, the mirror rotating mechanism 5 that rotates the mirror main body 40 together with the lever 6 about the rotation axis AX, and the shaft 61 and the shaft support 75 while making the shaft 61 rotatable with respect to the shaft support 75 . is made of a material having a smaller coefficient of friction than the holding member 80, which is an example of a holding member that holds in the direction along the rotation axis AX, is sandwiched between the holding member 80 and the shaft support portion 75, 6 and a low-friction member 90 that slides against the shaft support portion 75 when the mirror body portion 40 rotates. The holding member 80 holds the shaft portion 61 and the shaft support portion 75 from the outside in the direction along the rotation axis AX, and rotates together with the lever portion 6 . The low-friction member 90 slides against the shaft support portion 75 when rotating together with the holding member 80 .
According to this configuration, the low-friction member 90 can reduce the frictional force acting between the clamping member 80 and the shaft support portion 75, thereby reducing noise generated when the mirror body portion 40 rotates.
In particular, the lever portion 6 receives the rotational force from the mirror rotating mechanism 5 via the rotational force receiving portion 62 . For this reason, the frictional force acting between the clamping member 80 and the shaft support portion 75 tends to increase, and noise tends to occur. Therefore, providing the low friction member 90 is beneficial.
　（２）低摩擦部材９０は、挟持部材８０と軸支持部７５の間に挟み込まれる摺動部９１と、挟持部材８０とレバー部６の間に挟み込まれ、レバー部６に接着される接着部９２と、摺動部９１と接着部９２の間を連結する連結部９３と、を備える。
　この構成によれば、接着部９２がレバー部６に接着されるため、挟持部材８０の装着時に低摩擦部材９０が脱落することが抑制される。このため、低摩擦部材９０を介在させた状態での挟持部材８０の装着が容易となる。 (2) The low-friction member 90 includes a sliding portion 91 sandwiched between the clamping member 80 and the shaft support portion 75, and an adhesive portion sandwiched between the clamping member 80 and the lever portion 6 and adhered to the lever portion 6. 92 , and a connecting portion 93 that connects between the sliding portion 91 and the adhesive portion 92 .
According to this configuration, since the adhesive portion 92 is adhered to the lever portion 6, the low friction member 90 is prevented from coming off when the holding member 80 is attached. Therefore, it becomes easy to attach the holding member 80 with the low friction member 90 interposed therebetween.
　（３）低摩擦部材９０は、挟持部材８０と軸支持部７５の間に挟み込まれ、円環シート状をなす摺動部９１を備える。軸支持部７５は、低摩擦部材９０に形成される第１貫通孔の一例である貫通孔９１ａと挟持部材８０に形成される第２貫通孔の一例である貫通孔８１ｂに挿通されるように凸状に形成される係止部７５ａを備える。
　この構成によれば、係止部７５ａにより、低摩擦部材９０及び挟持部材８０を位置決めすることができる。
　（４）レバー部６はガラス繊維が添加された樹脂により形成されている。
　比較例として、低摩擦部材９０なしの構成では、挟持部材８０がレバー部６に含まれるガラス繊維に接触して騒音の原因となるが、低摩擦部材９０を設けることにより、挟持部材８０がガラス繊維に接触することが抑制され、騒音を低減することができる。 (3) The low-friction member 90 is sandwiched between the holding member 80 and the shaft support portion 75 and has a ring-shaped sheet-like sliding portion 91 . The shaft support portion 75 is inserted through a through hole 91 a that is an example of a first through hole formed in the low-friction member 90 and a through hole 81 b that is an example of a second through hole formed in the holding member 80 . A locking portion 75a formed in a convex shape is provided.
According to this configuration, the low friction member 90 and the holding member 80 can be positioned by the locking portion 75a.
(4) The lever portion 6 is made of resin to which glass fiber is added.
As a comparative example, in a configuration without the low-friction member 90, the holding member 80 comes into contact with the glass fiber included in the lever portion 6 and causes noise. Contact with fibers is suppressed, and noise can be reduced.
　なお、本開示は以上の実施形態及び図面によって限定されるものではない。本開示の要旨を変更しない範囲で、適宜、変更（構成要素の削除も含む）を加えることが可能である。以下に、変形の一例を説明する。 It should be noted that the present disclosure is not limited by the above embodiments and drawings. Changes (including deletion of components) can be made as appropriate without changing the gist of the present disclosure. An example of modification will be described below.
　（変形例）
　上記実施形態における低摩擦部材９０の形状は変更可能である。例えば、低摩擦部材９０における接着部９２及び連結部９３が省略されて、低摩擦部材９０が摺動部９１のみから構成されてもよい。例えば、図１１に示すように、低摩擦部材１９０は、円環シート状に形成されており、外周面の一部を直線状としたカット部１９１を有していてもよい。低摩擦部材１９０の貫通孔１９１ａ内に係止部７５ａを挿入（圧入）する。このとき、カット部１９１が挟持部材８０の挿入方向Ｊ１を向くことにより、挟持部材８０の挿入時に、挟持部材８０が低摩擦部材１９０に接触することが抑制される。これにより、挟持部材８０の挿入時に、挟持部材８０が低摩擦部材１９０を係止部７５ａから外すように弾き飛ばすことが抑制される。この変形例では、両面テープ等の接着手段（図示略）を用いなくてもよい。また、この変形例では、図１２に示すように、カット部１９１の直線中央が接触部７５ｊ上、接触部７５ｊの頂点に位置することが好ましい。 (Modification)
The shape of the low friction member 90 in the above embodiment can be changed. For example, the adhesive portion 92 and the connecting portion 93 of the low-friction member 90 may be omitted, and the low-friction member 90 may be composed only of the sliding portion 91 . For example, as shown in FIG. 11, the low-friction member 190 may be formed in the shape of an annular sheet, and may have a cut portion 191 in which part of the outer peripheral surface is linear. The engaging portion 75 a is inserted (press-fitted) into the through hole 191 a of the low friction member 190 . At this time, since the cut portion 191 faces the insertion direction J1 of the holding member 80, the holding member 80 is prevented from contacting the low-friction member 190 when the holding member 80 is inserted. Accordingly, when the holding member 80 is inserted, the holding member 80 is prevented from flipping the low-friction member 190 away from the engaging portion 75a. In this modification, it is not necessary to use adhesive means (not shown) such as double-sided tape. Further, in this modification, as shown in FIG. 12, it is preferable that the straight line center of the cut portion 191 is located on the contact portion 75j and at the vertex of the contact portion 75j.
　上記実施形態においては、挟持部材８０は、軸部６１及び軸支持部７５を外側から挟持する略Ｕ字板状をなしていたが、挟持部材８０に限らず、軸部６１を軸支持部７５に対して回転可能としつつ回転軸ＡＸに沿う方向から保持できる保持部材であってもよい。例えば、図１３に示すように、保持部材１８０は、回転軸ＡＸ上を通過する円柱状のピン１８３と、ピン１８３に挿通され、軸部６１及び軸支持部７５を回転軸ＡＸに沿う方向に保持する押圧部材の一例であるプッシュナット１８２と、備える。ピン１８３は、軸部６１の中心軸を貫通する。ピン１８３の第１端部（図１３の上端部）は、軸支持部７５の天井部７５ｔの内面に嵌め込まれる。ピン１８３の第２端部（図１３の下端部）は、軸部６１の裏面側に露出する。ピン１８３の第２端部には、円環状のプッシュナット１８２が螺合される。プッシュナット１８２と軸部６１の裏面の間には、円環シート状の低摩擦部材２９０が設けられる。低摩擦部材２９０は、保持部材１８０のプッシュナット１８２と軸部６１の裏面の間の摩擦力を低減する。
　また、図１３の変形例に限らず、ピン１８３の第１端部（図１３の上端部）は、軸支持部７５の天井部７５ｔを貫通し、この第１端部にプッシュナット１８２が螺合され、プッシュナット１８２と天井部７５ｔの間に低摩擦部材２９０が設けられてもよい。 In the above embodiment, the clamping member 80 has a substantially U-shaped plate shape that clamps the shaft portion 61 and the shaft support portion 75 from the outside. It may be a holding member that can be held from a direction along the rotation axis AX while being rotatable with respect to. For example, as shown in FIG. 13, the holding member 180 is a columnar pin 183 that passes through the rotation axis AX and is inserted through the pin 183 so that the shaft portion 61 and the shaft support portion 75 extend in the direction along the rotation axis AX. A push nut 182, which is an example of a holding pressing member, is provided. The pin 183 penetrates through the central axis of the shaft portion 61 . A first end (upper end in FIG. 13) of the pin 183 is fitted into the inner surface of the ceiling portion 75t of the shaft support portion 75. As shown in FIG. A second end portion (lower end portion in FIG. 13 ) of the pin 183 is exposed on the rear surface side of the shaft portion 61 . An annular push nut 182 is screwed onto the second end of the pin 183 . An annular sheet-shaped low-friction member 290 is provided between the push nut 182 and the back surface of the shaft portion 61 . The low friction member 290 reduces the frictional force between the push nut 182 of the holding member 180 and the back surface of the shaft portion 61 .
13, the first end of the pin 183 (upper end in FIG. 13) passes through the ceiling portion 75t of the shaft support portion 75, and the push nut 182 is screwed to the first end. A low friction member 290 may be provided between the push nut 182 and the ceiling portion 75t.
　上記実施形態においては、レバー部６は、ミラー本体部４０と別体で形成されていたが、これに限らず、ミラー本体部４０と一体形成されてもよい。 In the above embodiment, the lever portion 6 is formed separately from the mirror body portion 40, but it is not limited to this and may be formed integrally with the mirror body portion 40.
　上記実施形態においては、ヘッドアップディスプレイ装置１００が車載されていたが、これに限らず、飛行機、船等の乗り物に搭載されていてもよい。また、被投射部材はフロントガラス２００に限られず、専用のコンバイナであってもよい。 Although the head-up display device 100 is mounted on a vehicle in the above embodiment, it is not limited to this, and may be mounted on a vehicle such as an airplane or a ship. Further, the projected member is not limited to the windshield 200, and may be a dedicated combiner.
１　筐体２　表示器３　平面ミラー４　ミラーユニット５　ミラー回転機構６　レバー部７　支持ケース８，６１　軸部９ａ　支持部材９ｂ，１８０　保持部材１０　開口部１１　透光性カバー４０　ミラー本体部４０ａ　反射面４０ｂ　被取付部６１ａ，６１ｂ，６１ｃ　片部６２　回転力受け部６３　レバー本体部６４　取付部６５，７５ａ　係止部７１　モータ７１ａ　ねじ歯車７２　歯車７５　軸支持部７５ｊ　接触部７５ｓ　周壁部７５ｔ　天井部７６　歯車収容部８０　挟持部材８１，８２　壁部８１ａ　押圧部８１ｂ，８２ｂ，９１ａ，９２ａ，１９１ａ　貫通孔８１ｋ，８２ｋ　傾斜部９０，１９０，２９０　低摩擦部材９１　摺動部９２　接着部９３　連結部１００　ヘッドアップディスプレイ装置１８２　プッシュナット１８３　ピン１９１　カット部２００　フロントガラスＥ　視認者Ｆ　前方位置Ｊ１　挿入方向Ｌ　表示光ＡＸ　回転軸 1 Housing 2 Display 3 Flat mirror 4 Mirror unit 5 Mirror rotation mechanism 6 Lever 7 Support case 8, 61 Shaft 9a Support member 9b, 180 Holding member 10 Opening 11 Translucent cover 40 Mirror main body 40a Reflecting surface 40b Attached parts 61a, 61b, 61c Piece part 62 Rotational force receiving part 63 Lever body part 64 Mounting part 65, 75a Locking part 71 Motor 71a Screw gear 72 Gear 75 Shaft support part 75j Contact part 75s Peripheral wall part 75t Ceiling part 76 Gear housing portion 80 Clamping members 81, 82 Wall portion 81a Pressing portions 81b, 82b, 91a, 92a, 191a Through holes 81k, 82k Inclined portions 90, 190, 290 Low friction member 91 Sliding portion 92 Adhesive portion 93 Connecting portion 100 Head Up display device 182 Push nut 183 Pin 191 Cut portion 200 Windshield E Viewer F Front position J1 Insertion direction L Display light AX Rotation axis

Claims (5)

  1. 　画像を表す表示光を出射する表示器と、
    　前記表示光を反射するミラー本体部と、
    　軸部及び回転力受け部を有し、前記ミラー本体部の端部に設けられるレバー部と、
    　前記軸部を回転軸を中心に回転可能に支持する軸支持部と、
    　前記レバー部の前記回転力受け部に回転力を伝達することにより、前記レバー部とともに前記ミラー本体部を前記回転軸を中心に回転させるミラー回転機構と、
    　前記軸部を前記軸支持部に対して回転可能としつつ、前記軸部及び前記軸支持部を前記回転軸に沿う方向に保持する保持部材と、
    　前記保持部材よりも摩擦係数が小さい材質からなり、前記保持部材と前記軸支持部又は前記レバー部の間に挟み込まれ、前記レバー部及び前記ミラー本体部の回転時に前記軸支持部又は前記レバー部に対して摺動する低摩擦部材と、を備える、
    　ヘッドアップディスプレイ装置。     a display that emits display light representing an image;
    a mirror main body that reflects the display light;
    a lever portion having a shaft portion and a rotational force receiving portion and provided at an end portion of the mirror main body portion;
    a shaft support portion that supports the shaft portion so as to be rotatable around a rotation shaft;
    a mirror rotation mechanism that rotates the mirror main body together with the lever portion about the rotation axis by transmitting a rotational force to the rotational force receiving portion of the lever portion;
    a holding member that holds the shaft portion and the shaft support portion in a direction along the rotation axis while allowing the shaft portion to rotate with respect to the shaft support portion;
    It is made of a material having a friction coefficient smaller than that of the holding member, is sandwiched between the holding member and the shaft support portion or the lever portion, and is sandwiched between the shaft support portion or the lever portion when the lever portion and the mirror body portion rotate. a low-friction member that slides against
    Head-up display device.
  2. 　前記保持部材は、前記軸部及び前記軸支持部を前記回転軸に沿う方向における外側から挟持し、前記レバー部とともに回転する挟持部材であり、
    　前記低摩擦部材は、前記レバー部及び前記挟持部材とともに回転する際に前記軸支持部に摺動する、
    　請求項１に記載のヘッドアップディスプレイ装置。     The holding member is a holding member that holds the shaft portion and the shaft support portion from outside in a direction along the rotation shaft and rotates together with the lever portion,
    The low-friction member slides on the shaft support portion when rotating together with the lever portion and the clamping member.
    The head-up display device according to claim 1.
  3. 　前記低摩擦部材は、
    　前記挟持部材と前記軸支持部の間に挟み込まれる摺動部と、
    　前記挟持部材と前記レバー部の間に挟み込まれ、前記レバー部に接着される接着部と、
    　前記摺動部と前記接着部の間を連結する連結部と、を備える、
    　請求項２に記載のヘッドアップディスプレイ装置。     The low-friction member is
    a sliding portion sandwiched between the holding member and the shaft support;
    a bonding portion sandwiched between the clamping member and the lever portion and bonded to the lever portion;
    a connecting portion that connects between the sliding portion and the adhesive portion;
    The head-up display device according to claim 2.
  4. 　前記低摩擦部材は、前記挟持部材と前記軸支持部の間に挟み込まれ、円環シート状をなし、
    　前記軸支持部は、前記低摩擦部材に形成される第１貫通孔と前記挟持部材に形成される第２貫通孔に挿通されるように凸状に形成される係止部を備え、
    　前記低摩擦部材は、外周の一部が直線で形成され、前記挟持部材の挿入方向を向くカット部を備える、
    　請求項２に記載のヘッドアップディスプレイ装置。     The low-friction member is sandwiched between the clamping member and the shaft support portion and has an annular sheet shape,
    The shaft support portion includes a locking portion formed in a convex shape so as to be inserted into a first through hole formed in the low-friction member and a second through hole formed in the holding member,
    The low-friction member has a cut portion whose outer circumference is partly formed in a straight line and faces the insertion direction of the holding member,
    The head-up display device according to claim 2.
  5. 　前記保持部材は、
    　前記回転軸上を通過し、前記軸部及び前記軸支持部を相対回転可能とするピンと、
    　前記ピンの端部に設けられ、前記低摩擦部材を前記レバー部又は前記軸支持部に向けて押す押圧部材と、備える、
    　請求項１に記載のヘッドアップディスプレイ装置。     The holding member is
    a pin that passes over the rotating shaft and allows the shaft portion and the shaft support portion to rotate relative to each other;
    a pressing member provided at the end of the pin and pressing the low-friction member toward the lever portion or the shaft support portion;
    The head-up display device according to claim 1.
PCT/JP2022/043694 2021-11-29 2022-11-28 Head-up display device WO2023095898A1 (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017068190A (en) * 2015-10-02 2017-04-06 日本精機株式会社 Headup display
JP2020134703A (en) * 2019-02-20 2020-08-31 日本精機株式会社 Mirror device and head-up display device
JP2021071634A (en) * 2019-10-31 2021-05-06 矢崎総業株式会社 Mirror device
US20210191121A1 (en) * 2019-12-23 2021-06-24 Hyundai Mobis Co., Ltd. Vehicle head-up display apparatus having improved structure for installing aspherical mirror

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017068190A (en) * 2015-10-02 2017-04-06 日本精機株式会社 Headup display
JP2020134703A (en) * 2019-02-20 2020-08-31 日本精機株式会社 Mirror device and head-up display device
JP2021071634A (en) * 2019-10-31 2021-05-06 矢崎総業株式会社 Mirror device
US20210191121A1 (en) * 2019-12-23 2021-06-24 Hyundai Mobis Co., Ltd. Vehicle head-up display apparatus having improved structure for installing aspherical mirror

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