Mirror device and vehicle display device

Abstract

The invention provides a mirror device and a vehicle display device capable of suppressing generation of torsion between a power transmission member and a mirror. A mirror device (200) is provided with: a mirror (30) including a main body (31) having a reflecting surface (31a) for reflecting display light (Lt), and a rotating shaft (32) protruding from a side wall of the main body; a motor (41) including an output shaft (41a) disposed on a rotation axis (AX1) of the rotation shaft; and a power transmission member (42) that transmits the driving force of the motor to the rotating shaft, in which first attachment parts (31e, 42a) are formed in the power transmission member and the mirror, the first attachment parts (31e, 42a) being fitted to each other in the direction along the axis of rotation at positions adjacent to the rotating shaft.

Description

Technical Field

[0001] The present invention relates to a reflector device and a vehicle display device. Background Art

[0002] Patent document 1 discloses a reflector unit, which includes a supported portion, and supports the rotation center axis of the reflector holder on a frame in a rotatable manner. The outer peripheral surface of the supported portion is a cylindrical surface, and a plurality of radial weight reduction portions that are radially recessed from the outer peripheral surface of the rotation center axis are formed in the cylindrical surface forming portion of the rotation center axis. According to this structure, in the reflector unit of patent document 1, even if the length of the rotation center axis formed in the reflector holder and inserted into the coil spring becomes longer, the deviation of the wall thickness of the entire rotation center axis can be suppressed.

[0003] Prior art literature

[0004] Patent Literature

[0005] Patent Document 1: Japanese Patent Application Publication No. 2021-167873 Summary of the invention

[0006] Problems to be solved by the invention

[0007] However, in the reflector device, since torsion occurs between the power transmission component that transmits the driving force of the motor to the reflector and the reflector, when the angle of the reflector is changed to a predetermined angle by the driving force of the motor, a time lag sometimes occurs between the rotation of the motor and the rotation of the reflector.

[0008] An object of the present invention is to provide a reflector device and a vehicle display device capable of suppressing the occurrence of torsion between a power transmission member and a reflector.

[0009] Means for solving problems

[0010] The reflector device of the present invention is characterized in that it comprises: a reflector, which includes a main body and a rotating shaft, the main body having a reflecting surface for reflecting display light, and the rotating shaft protruding from the side wall of the main body; a motor, which includes an output shaft arranged on the rotating axis of the rotating shaft; and a power transmission component, which transmits the driving force of the motor to the rotating shaft, and a first assembly part is formed between the power transmission component and the reflector, and the first assembly parts are interlocked with each other in a direction along the rotating axis at a position adjacent to the rotating shaft.

[0011] The vehicle display device of the present invention is characterized in that it comprises: a frame having an opening; an image display device, which is arranged in the frame and outputs display light of an image; and a reflector device, which is arranged in the frame, and the reflector device comprises: a reflector, which includes a main body and a rotating shaft, the main body having a reflecting surface that reflects the display light from the image display device toward the opening, and the rotating shaft protrudes from a side wall of the main body; a motor, which includes an output shaft arranged on the rotating axis of the rotating shaft; and a power transmission component, which transmits the driving force of the motor to the rotating shaft, and a first assembly portion is formed between the power transmission component and the reflector, and the first assembly portion is interlocked with each other in a direction along the rotating axis at a position adjacent to the rotating shaft.

[0012] Effects of the Invention

[0013] The reflector device and the vehicle display device according to the present invention have the effect of suppressing the occurrence of torsion between the power transmission member and the reflector. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a diagram showing a vehicle equipped with the vehicle display device according to the embodiment.

[0015] Figure 2 It is a schematic configuration diagram showing a vehicle display device according to an embodiment.

[0016] Figure 3 It is a perspective view showing a reflector device according to the embodiment.

[0017] Figure 4 It is an exploded perspective view showing the reflector device according to the embodiment.

[0018] Figure 5 It is an exploded perspective view showing the reflector device according to the embodiment.

[0019] Figure 6 It is a plan view showing a power transmission member according to the embodiment.

[0020] Figure 7 It is an enlarged perspective view showing a state in which the power transmission member according to the embodiment is mounted on the reflector.

[0021] Figure 8 It is a cross-sectional view showing a state in which the power transmission member according to the embodiment is mounted on the reflector.

[0022] Fig. 9 It is a cross-sectional view showing a state where the reflector device according to the embodiment is assembled to the lower case.

[0023] Description of Reference Numerals

[0024] 30: Reflector

[0025] 31: Main body; 32, 33: Rotation axis

[0026] 31e, 42a: First assembly section

[0027] 32b, 42b: Second assembly section

[0028] 32c, 42c: The third assembly section

[0029] 41: Motor; 41a: Output shaft; 42: Power transmission component

[0030] 100: Vehicle display device; 200: Reflector device

[0031] 300: Vehicle; RM: Reflective parts

[0032] CR: Control Department DETAILED DESCRIPTION

[0033] Hereinafter, the reflector device and the vehicle display device according to the embodiment of the present invention will be described in detail with reference to the accompanying drawings. In addition, the present invention is not limited to the embodiment. In addition, the constituent elements in the following embodiments include elements that can be easily thought of by those skilled in the art or substantially the same elements.

[0034] [Implementation Method]

[0035] Reference Figures 1 to 9 , an embodiment is described. This embodiment relates to a reflector device and a vehicle display device. Figure 1 is a diagram showing a vehicle equipped with a vehicle display device according to an embodiment. Figure 2 is a schematic structural diagram showing a vehicle display device according to an embodiment. Figure 3 is a perspective view showing a reflector device according to an embodiment, Figure 4 is an exploded perspective view showing a reflector device according to an embodiment. Figure 5 is an exploded perspective view showing a reflector device according to an embodiment. Figure 6 is a plan view showing a power transmission component according to an embodiment, Figure 7 is an enlarged perspective view showing a state where a power transmission component according to an embodiment is mounted on a reflector. Figure 8 is a cross-sectional view showing a state where a power transmission component according to an embodiment is mounted on a reflector. Fig. 9 It is a cross-sectional view showing a state where the reflector device according to the embodiment is assembled to the lower case.

[0036] Figure 1 The vehicle display device 100 of the illustrated embodiment is a head-up display device mounted on a vehicle 300 such as an automobile. The vehicle display device 100 is housed in an instrument panel 320 of the vehicle 300. The vehicle display device 100 projects the display light Lt of the image toward the reflection surface 310a of the windshield 310 of the vehicle 300 through the opening of the instrument panel 320. The windshield 310 is a reflection portion located in front of the eye point EP of the vehicle 300, and has, for example, semi-transmissiveness, and reflects the display light Lt incident on the reflection surface 310a from the vehicle display device 100 toward the eye point EP. The driver of the vehicle 300 can visually confirm the virtual image Vi through the display light Lt reflected by the windshield 310.

[0037] like Figure 2 As shown, the vehicle display device 100 includes a frame 10, an image display device 20, a reflector device 200, a reflective component RM, and a control unit CR. The frame 10 is formed in a box shape and is mounted on a vehicle 300. The frame 10 accommodates the image display device 20, the reflector device 200, the reflective component RM, and the control unit CR in a accommodating portion HS on the inner side of the frame 10. The image display device 20, the reflector device 200, the reflective component RM, and the control unit CR are fixed to the frame 10.

[0038] The housing 10 has an opening 12a for emitting the display light Lt from the housing 10 toward the reflecting surface 310a of the windshield 310, and a cover member 13 is attached to close the opening 12a. The cover member 13 is a light-transmitting member that transmits at least the display light Lt emitted by the image display device 20.

[0039] The frame 10 of the embodiment includes a lower shell 11 and an upper shell 12. The lower shell 11 and the upper shell 12 are molded of, for example, insulating synthetic resin. The lower shell 11 is a box-shaped component with an opening at the top, and the upper shell 12 is a box-shaped component with an opening at the bottom. The lower shell 11 and the upper shell 12 are engaged with each other in such a way that the opening of the lower shell 11 is aligned with the opening of the upper shell 12 to form the frame 10. In the frame 10 of the embodiment, an opening 12a for emitting display light Lt toward the reflecting surface 310a of the windshield 310 is formed on the upper surface of the upper shell 12. The image display device 20, the reflector device 200, the reflecting member RM, and the control unit CR are assembled and held in the lower shell 11.

[0040] The image display device 20 outputs the display image projected onto the windshield 310 as display light Lt. The image display device 20 is configured to include a liquid crystal display unit and a backlight unit. The liquid crystal display unit is a so-called liquid crystal panel, and is composed of, for example, a light-transmitting or light-semi-transmitting TFT liquid crystal (Thin Film Transistor Liquid Crystal Display) or the like. The liquid crystal display unit emits light on the display surface on the front side by being illuminated from the back side. The backlight unit illuminates the liquid crystal display unit from the back side. The backlight unit is driven, for example, by power obtained from a battery (not shown) in the vehicle 300.

[0041] The reflecting member RM is a plane reflecting mirror, and the reflecting surface for reflecting the display light Lt is formed by a plane. The reflecting member RM is arranged at a position facing the image display device 20. The reflecting member RM reflects the display light Lt emitted from the image display device 20 toward the reflecting mirror 30 of the reflecting mirror device 200.

[0042] like Figure 3 As shown, the reflector device 200 includes a reflector 30, a driving component 40, and a bearing component 50. The reflector 30 reflects the display light Lt reflected by the reflecting component RM toward the reflecting surface 310a of the windshield 310 via the opening 12a. The reflector 30 of the embodiment is a concave reflector and has a function as a magnifying glass. That is, the reflector 30 of the embodiment magnifies the display image and reflects it so that the display image represented by the display light Lt after being reflected by the concave reflector 30 becomes relatively larger than the display image represented by the display light Lt before being reflected by the reflector 30.

[0043] like Figure 4 As shown, the reflector 30 includes a main body 31 and rotation axes 32 and 33. The main body 31 has a reflection surface 31a that reflects the display light Lt. In the embodiment, the main body 31 is a flat plate-shaped member, and the shape viewed from the thickness direction of the main body 31 is a substantially rectangular shape with the direction along the rotation axis AX1 as the long side direction.

[0044] The main body 31 has a first side wall 31b and a second side wall 31c. The first side wall 31b is one side wall in the length direction of the main body 31, and the second side wall 31c is the other side wall in the length direction of the main body 31. That is, the main body 31 has a first side wall 31b and a second side wall 31c which is a side wall on the opposite side to the first side wall 31b in the length direction of the main body 31. In the embodiment, when the reflector 30 is viewed from the reflection surface 31a side, the first side wall 31b is the side wall on the left side of the main body 31, and the second side wall 31c is the side wall on the right side of the main body 31. In the embodiment, a seat portion 31d is formed on a portion of the first side wall 31b. A portion of the seat portion 31d is formed at a position overlapping with the rotation axis AX1. The seat portion 31d of the embodiment is formed in a cylindrical shape protruding relative to the surface surrounding the seat portion 31d in the first side wall 31b. In the embodiment, the central axis of the seat portion 31d is located on the rotation axis AX1 of the reflector 30. The rotation axis AX1 is the rotation center of the reflecting mirror 30 .

[0045] The rotation axes 32 and 33 of the reflector 30 are respectively arranged at the positions of the rotation axis AX1. The rotation axis AX1 is the rotation center of the reflector 30. The central axes of the rotation axes 32 and 33 of the reflector 30 are respectively located on the rotation axis AX1.

[0046] The rotating shaft 32 is formed on the base portion 31d of the first side wall 31b of the main body 31. The rotating shaft 32 protrudes from the base portion 31d along the rotating axis AX1. In addition, the rotating shaft 33 protrudes from the second side wall 31c of the main body 31 along the rotating axis AX1. The driving component 40 is mounted on the rotating shaft 32, and the bearing component 50 is mounted on the rotating shaft 33. The driving component 40 and the bearing component 50 are fixed to the frame 10 by fixing components such as screws. The reflector 30 is mounted on the frame 10 via the driving component 40 and the bearing component 50 (see Fig. 9 ).

[0047] like Figure 4 As shown, the driving member 40 includes a motor 41, a power transmission member 42, a motor support portion 43, a first spring 44, a second spring 45, and a screw 46. The motor 41 includes an output shaft 41a and a motor housing 41b.

[0048] The motor 41 rotates the output shaft 41a by power supplied from a vehicle battery or the like. The motor housing 41b houses components such as a rotor and a stator for consuming the supplied power to rotate the output shaft 41a. The motor housing 41b also has a connector for electrical connection with a control unit or the like.

[0049] The control unit CR is connected to the connector of the motor housing 41b, and can control the rotation of the output shaft 41a of the motor 41 by controlling the motor 41. For example, the control unit CR can control the rotation speed, rotation amount, and rotation direction of the output shaft 41a of the motor 41. The control unit CR can change the angle of the reflector 30 by controlling the rotation of the output shaft 41a of the motor 41.

[0050] The power transmission component 42 is a component that connects the output shaft 41a of the motor 41 to the rotating shaft 32 of the reflector 30 and transmits the driving force of the motor 41 to the rotating shaft 32 of the reflector 30. The power transmission component 42 is formed as a cylindrical component extending along the rotation axis AX1, and a first opening portion that is fitted with the rotating shaft 32 is formed at one end, and a second opening portion that is fitted with the output shaft 41a is formed at the other end. Both the first opening portion and the second opening portion are located on the rotation axis AX1.

[0051] like Figure 4 and Figure 5 As shown, the rotating shaft 32 is formed into a prism shape extending along the rotating axis AX1, and the first opening of the power transmission component 42 is formed into a shape corresponding to the rotating shaft 32 (that is, a shape that can be fitted with the rotating shaft 32). The power transmission component 42 is assembled to the reflector 30 by inserting the rotating shaft 32 into the first opening and fitting the rotating shaft 32 into the first opening.

[0052] like Figure 5 As shown, in the embodiment, in the power transmission member 42 and the reflector 30, first assembly parts 31e and 42a that fit together in the direction along the rotation axis AX1 are formed at positions adjacent to the rotation axis 32. The first assembly parts 31e and 42a of the embodiment are composed of a recessed part 31e formed on the base part 31d and a convex part 42a formed on the power transmission member 42.

[0053] The recessed portion 31e in the reflector 30 is a groove-shaped recessed portion formed in the base portion 31d, and is formed so as to be engaged with the convex portion 42a of the power transmission member 42 by inserting the convex portion 42a along the rotation axis AX1. In the embodiment, the recessed portion 31e is formed at a position adjacent to the rotation axis 32, and is formed by recessing a portion of the surface of the base portion 31d on the motor 41 side toward the side opposite to the motor 41 side. That is, the recessed portion 31e is formed by cutting off a portion of the outer peripheral portion of the base portion 31d (the portion of the base portion 31d surrounding the rotation axis 32).

[0054] The convex portion 42a of the power transmission member 42 is provided on the peripheral wall of the first opening of the power transmission member 42. The convex portion 42a is formed by causing a part of the peripheral wall of the first opening to protrude toward the reflector 30 along the rotation axis AX1.

[0055] In the embodiment, the convex portion 42a has a prism shape, and the concave portion 31e is formed in a shape corresponding to the convex portion 42a. That is, the concave portion 31e is formed in a shape that can be fitted with the convex portion 42a by inserting the convex portion 42a along the rotation axis AX1. The concave portion 31e and the convex portion 42a are formed in the following positions: when the relative position of the rotating shaft 32 and the power transmission component 42 is the standard position and the rotating shaft 32 and the power transmission component 42 are assembled, the concave portion 31e and the convex portion 42a are fitted with each other, and when the relative position of the rotating shaft 32 and the power transmission component 42 is a non-standard position different from the standard position and the rotating shaft 32 and the power transmission component 42 are assembled, the concave portion 31e and the convex portion 42a are not fitted with each other. That is, in the power transmission component 42 and the reflector 30, when the relative positions of the rotating shaft 32 and the power transmission component 42 are assembled at the standard position, the first assembly parts 31e and 42a are engaged with each other, and when the relative positions of the rotating shaft 32 and the power transmission component 42 are to be assembled at a non-standard position different from the standard position, the first assembly parts 31e and 42a are not engaged with each other. With this structure, when the power transmission component 42 and the reflector 30 are assembled, the occurrence of incorrect assembly can be suppressed.

[0056] Here, the case where the relative position of the rotating shaft 32 and the power transmission component 42 is in a non-standard position refers to, for example, a case where the relative positional relationship is reversed 180 degrees around the rotation axis AX1 relative to the rotating shaft 32 and the power transmission component 42 in the standard position. For example, the first assembly parts 31e and 42a may be formed so that when the relative position of the rotating shaft 32 and the power transmission component 42 is in a non-standard position, the rotating shaft 32 and the power transmission component 42 cannot be assembled due to interference with the other party's components (reflector 30 or power transmission component 42).

[0057] like Figure 5 and Figure 6 As shown, second assembly parts 32b and 42b that fit together are formed at the distal end of the rotating shaft 32 and the power transmission member 42. The second assembly parts 32b and 42b of the embodiment are composed of the protrusion 32b formed on the rotating shaft 32 and the opening 42b formed on the power transmission member 42.

[0058] like Figure 5 As shown, the protrusion 32b in the embodiment is formed by making a part of the distal end surface of the rotating shaft 32 protrude toward the motor 41 side relative to another part of the distal end surface of the rotating shaft 32. The protrusion 32b is formed in a prism shape extending along the rotation axis AX1. In addition, Figure 6 is a plan view of the power transmission component 42 when viewed from the rotating shaft 32 side. Figure 6As shown, the power transmission member 42 in the embodiment is formed with a wall portion 42d that separates the first opening portion from the second opening portion. The opening 42b of the power transmission member 42 is formed in a part of the wall portion 42d.

[0059] like Figure 7 and Figure 8 As shown, the protrusion 32b and the opening 42b are formed so as to fit into each other when the rotating shaft 32 and the power transmission member 42 are assembled in the standard position. Figure 7 is with Figure 8 The corresponding cross-sectional view and Figure 7 Likewise, for the sake of explanation, components other than the reflector 30 and the power transmission component 42 are omitted.

[0060] Here, the protrusion 32b and the opening 42b are formed in such a position that when the relative position of the rotating shaft 32 and the power transmission component 42 is the standard position and the rotating shaft 32 and the power transmission component 42 are assembled, the protrusion 32b and the opening 42b are interlocked with each other, and when the relative position of the rotating shaft 32 and the power transmission component 42 is the non-standard position and the rotating shaft 32 and the power transmission component 42 are assembled, the protrusion 32b and the opening 42b are not interlocked with each other. That is, in the terminal portion of the rotating shaft 32 and the power transmission component 42, the second assembly parts 32b and 42b are interlocked with each other when the relative position of the rotating shaft 32 and the power transmission component 42 are assembled in the standard position, and are not interlocked with each other when the relative position of the rotating shaft 32 and the power transmission component 42 are assembled in the non-standard position. According to this structure, when the power transmission component 42 and the reflector 30 are assembled, the occurrence of wrong assembly can also be suppressed. In addition, in the case of such a structure, for example, even if a power transmission component (a power transmission component used in a reflector device different from the reflector device 200 involved in the embodiment) without the opening 42b is assembled by mistake, the assembly of the reflector 30 and the power transmission component can be restricted by the protrusion 32b. With this structure, the occurrence of incorrect assembly is suppressed.

[0061] In addition, for example, the second assembly parts 32b, 42b can also be formed so that when the relative position of the rotating shaft 32 and the power transmission component 42 is in a non-standard position, the rotating shaft 32 and the power transmission component 42 cannot be assembled due to interference with the other party's components (reflector 30 or power transmission component 42).

[0062] like Figure 5 and Figure 7 As shown in FIG. 1 , the rotating shaft 32 and the power transmission member 42 are formed with third assembly parts 32c and 42c that engage with each other. The third assembly parts 32c and 42c of the embodiment are formed by the locking claws 32c formed on the rotating shaft 32 and the locking arms 42c formed on the power transmission member 42. Figure 7 In the figure, for the convenience of explanation, components other than the reflector 30 and the power transmission component 42 are omitted.

[0063] The locking claw 32c is a protrusion formed on the side surface of the rotating shaft 32 (the surface in the direction perpendicular to the rotating axis AX1), and is formed to engage with the locking arm 42c. The locking claw 32c is formed by protruding relative to the surrounding surface of the rotating shaft 32. Figure 5 As shown, in the embodiment, the locking claw 32 c is formed on the surface of the rotating shaft 32 facing the upper side.

[0064] The locking arm 42c is a part of the side wall of the first opening of the power transmission component 42, and includes a leaf spring-shaped arm portion and a frame-shaped locking portion provided at the end of the arm portion. When the rotating shaft 32 and the power transmission component 42 are assembled, the locking portion of the locking arm 42c passes over the locking claw 32c. When the rotating shaft 32 and the power transmission component 42 are assembled, the locking claw 32c is arranged on the inner side of the frame-shaped locking portion, and the locking arm 42c is engaged with the locking claw 32c (see Figure 7 ).

[0065] In the rotating shaft 32 and the power transmission component 42, when the relative position of the rotating shaft 32 and the power transmission component 42 is the standard position and the rotating shaft 32 and the power transmission component 42 are assembled, the third assembly parts 32c and 42c are engaged with each other, and when the relative position of the rotating shaft 32 and the power transmission component 42 is the non-standard position and the rotating shaft 32 and the power transmission component 42 are assembled, the third assembly parts 32c and 42c are not engaged with each other. According to this structure, when assembling the power transmission component 42 and the reflector 30, it is also possible to suppress the occurrence of incorrect assembly.

[0066] In addition, for example, the third assembly parts 32c, 42c can also be formed so that when the relative position of the rotating shaft 32 and the power transmission component 42 is in a non-standard position, the rotating shaft 32 and the power transmission component 42 cannot be assembled due to interference with the other party's components (reflector 30 or power transmission component 42).

[0067] In addition, for example, even when a power transmission component (a power transmission component used in a reflector device different from the reflector device 200 involved in the embodiment) without the locking arm 42c is assembled by mistake, the assembly of the reflector 30 and the power transmission component can be restricted by the locking claw 32c. This structure suppresses the occurrence of incorrect assembly.

[0068] The motor support portion 43 is fixed to the frame 10 in a state of supporting the motor 41 (see Figure 8) component. In addition, the motor support portion 43 is formed to cover the power transmission component 42. In the embodiment, an insertion hole for inserting the power transmission component 42 is formed in the motor support portion 43. The insertion hole opens in a direction along the rotation axis AX1.

[0069] The power transmission member 42 is inserted into the insertion hole of the motor support portion 43 from the side opposite to the main body portion 31 side of the reflector 30 relative to the motor support portion 43. The power transmission member 42 inserted into the insertion hole is held in the motor support portion 43 in a state where the tip of the power transmission member 42 (the end on the main body portion 31 side) protrudes from the insertion hole of the motor support portion 43.

[0070] Furthermore, the first assembling parts 31e and 42a are exposed to the outside from the motor support part 43, and whether the recessed part 31e and the raised part 42a of the first assembling parts 31e and 42a are fitted can be visually checked from the outside.

[0071] like Figure 4 As shown, the motor 41 is mounted on the power transmission member 42 and held by the motor support portion 43. The motor 41 is fixed to the motor support portion 43 by screws 46. By fixing the motor 41 and the motor support portion 43 by screws 46, the power transmission member 42 is also fixed in a state of being accommodated inside the motor support portion 43.

[0072] In the embodiment, hooks 42e and 43a are provided on the power transmission component 42 and the motor support portion 43, respectively. The hook 42e of the power transmission component 42 is exposed from the motor support portion 43. The first spring 44 is a retractable spiral spring, and rings are provided at both ends. One ring of the first spring 44 is mounted on the hook 42e of the power transmission component 42, and the other ring of the first spring 44 is mounted on the hook 43a of the motor support portion 43. The first spring 44 suppresses the shaking between the power transmission component 42 and the motor support portion 43 by the contraction force of the spring.

[0073] The second spring 45 is a helical spring that can be stretched. In the embodiment, a flange is formed at the end of the power transmission component 42 on the side opposite to the main body 31 of the reflector 30, and the flange is opposite to the motor support 43 in the direction of the rotation axis AX1. The second spring 45 is provided between the flange of the power transmission component 42 and the motor support 43 to suppress the shaking between the power transmission component 42 and the motor support 43.

[0074] like Figure 4 As shown, a driving member 40 is mounted on the rotating shaft 32, and a bearing member 50 is mounted on the rotating shaft 33. The reflector 30 is mounted on the lower housing 11 via the driving member 40 and the bearing member 50. For example, the driving member 40 and the bearing member 50 are fixed to the lower housing by fixing members such as screws.

[0075] The control unit CR controls the image display device 20 to perform display control of the display image (virtual image) displayed by the vehicle display device 100 (see Figure 2 ). In addition, the control unit CR is also connected to the reflector device 200, and can adjust the angle of the main body 31 of the reflector 30 by controlling the rotation of the motor 41 of the reflector device 200. That is, the control unit CR can control the reflector device 200 to adjust the display position of the display image.

[0076] As described above, the reflector device 200 involved in the embodiment comprises: a reflector 30, which includes a main body 31 having a reflecting surface 31a that reflects the display light Lt and a rotating shaft 32 protruding from the side wall of the main body 31; a motor 41, which includes an output shaft 41a arranged on the rotation axis AX1 of the rotating shaft 32; and a power transmission component 42, which transmits the driving force of the motor 41 to the rotating shaft 32, and the power transmission component 42 and the reflector 30 are formed with first assembly parts 31e, 42a that are interlocked with each other at a position adjacent to the rotating shaft 32 in the direction along the rotation axis AX1.

[0077] In the reflector device 200 involved in the embodiment, the power transmission component 42 and the reflector 30 are formed with a first assembly portion (recess 31e, convex portion 42a) that fits with each other in the direction along the rotation axis AX1 at a position adjacent to the rotation axis 32. That is, in the embodiment, the first assembly portion (recess 31e, convex portion 42a) is provided at a position deviated from the rotation axis AX1 as the rotation center (that is, a position outside the rotation axis AX1). By fitting the first assembly portion (recess 31e, convex portion 42a) outside the rotation axis AX1, when the reflector 30 of the reflector device 200 rotates (when the angle of the reflector 30 is changed to a predetermined angle by the driving force of the motor 41), it is possible to suppress the portion outside the rotation center from twisting relative to the rotation center (rotation axis AX1). In addition, by providing the first assembly portion (the recessed portion 31e and the convex portion 42a) separately from the rotating shaft 32, the power transmission component 42 and the reflector 30 are more firmly connected than when the power transmission component 42 and the reflector 30 are connected only by the rotating shaft 32, so when the angle of the reflector 30 is changed to a predetermined angle by the driving force of the motor 41, it is possible to suppress the torsion between the power transmission component 42 and the reflector 30. Therefore, it is possible to suppress the time lag between the rotation of the motor and the rotation of the reflector due to the torsion between the power transmission component 42 and the reflector 30. In addition, in the reflector device 200, by suppressing the torsion between the power transmission component 42 and the reflector 30, the driving force of the motor 41 can be smoothly transmitted to the reflector 30, and the driving efficiency of the motor 41 can be improved.

[0078] In addition, in the reflector device 200 involved in the embodiment, in the power transmission component 42 and the reflector 30, when the relative position of the rotating shaft 32 and the power transmission component 42 is a standard position and the rotating shaft 32 and the power transmission component 42 are assembled, the first assembly parts 31e and 42a are interlocked with each other, and when the relative position of the rotating shaft 32 and the power transmission component 42 is a non-standard position and the rotating shaft 32 and the power transmission component 42 are to be assembled, the first assembly parts 31e and 42a are not interlocked with each other.

[0079] In the reflector device 200 involved in the embodiment, the first assembly parts 31e and 42a are engaged with each other when the relative positions of the rotating shaft 32 and the power transmission component 42 are to be assembled in a standard position, and are not engaged with each other when the relative positions of the rotating shaft 32 and the power transmission component 42 are to be assembled in a non-standard position, thereby preventing incorrect assembly from occurring when assembling the reflector 30 and the power transmission component 42.

[0080] In addition, in the reflector device 200 involved in the embodiment, second assembly parts 32b and 42b that are interlocked with each other are formed at the terminal end of the rotating shaft 32 and the power transmission component 42. In the terminal end of the rotating shaft 32 and the power transmission component 42, when the relative position of the rotating shaft 32 and the power transmission component 42 is a standard position and the rotating shaft 32 and the power transmission component 42 are assembled, the second assembly parts 32b and 42b are interlocked with each other, and when the relative position of the rotating shaft 32 and the power transmission component 42 is a non-standard position and the rotating shaft 32 and the power transmission component 42 are assembled, the second assembly parts 32b and 42b do not interlock with each other.

[0081] In the reflector device 200 involved in the embodiment, the second assembly parts 32b and 42b are engaged with each other only when the relative positions of the rotating shaft 32 and the power transmission component 42 are in the standard position and the rotating shaft 32 and the power transmission component 42 are assembled, so that the occurrence of wrong assembly can be suppressed when the reflector 30 and the power transmission component 42 are assembled. In addition, by providing the second assembly parts 32b and 42b at the same time as the first assembly parts 31e and 42a, the function of suppressing wrong assembly can be further improved.

[0082] In addition, the vehicle display device 100 involved in the embodiment includes: a frame 10, which has an opening portion; an image display device 20, which is arranged in the frame 10 and outputs display light Lt of the image; and a reflector device 200, which is arranged in the frame 10, and the reflector device 200 includes: a reflector 30, which includes a main body 31 having a reflecting surface 31a that reflects the display light Lt from the image display device 20 toward the opening portion, and a rotating shaft 32 protruding from the side wall of the main body 31; a motor 41, which includes an output shaft 41a arranged on the rotation axis AX1 of the rotating shaft 32; and a power transmission component 42, which transmits the driving force of the motor 41 to the rotating shaft 32, and the power transmission component 42 and the reflector 30 are formed with first assembly parts 31e, 42a that are interlocked with each other in a direction along the rotation axis AX1 at a position adjacent to the rotating shaft 32.

[0083] In the vehicle display device 100 involved in the embodiment, the power transmission component 42 and the reflector 30 are formed with a first assembly portion (recess 31e, convex portion 42a) that fits with each other in the direction along the rotation axis AX1 at a position adjacent to the rotation shaft 32. That is, in the embodiment, the first assembly portion (recess 31e, convex portion 42a) is provided at a position deviated from the rotation axis AX1 as the rotation center (that is, a position outside the rotation axis AX1). By fitting the first assembly portion (recess 31e, convex portion 42a) outside the rotation axis AX1, when the reflector 30 of the reflector device 200 rotates (when the angle of the reflector 30 is changed to a predetermined angle by the driving force of the motor 41), it is possible to suppress the portion outside the rotation center from twisting relative to the rotation center (rotation axis AX1). In addition, by providing the first assembly portion (the recessed portion 31e and the convex portion 42a) separately from the rotating shaft 32, the power transmission component 42 and the reflector 30 are more firmly connected than when they are connected only by the rotating shaft 32, so when the angle of the reflector 30 is changed to a predetermined angle by the driving force of the motor 41, it is possible to suppress the torsion between the power transmission component 42 and the reflector 30. Therefore, it is possible to suppress the time lag between the rotation of the motor and the rotation of the reflector due to the torsion between the power transmission component 42 and the reflector 30. In addition, in the vehicle display device 100, by suppressing the torsion between the power transmission component 42 and the reflector 30, the driving force of the motor 41 can be smoothly transmitted to the reflector 30, and the driving efficiency of the motor 41 can be improved.

[0084] [Modifications]

[0085] It should be noted that, in the above-mentioned embodiment, an example in which the first assembly portion is composed of the recessed portion 31e formed on the pedestal portion 31d and the convex portion 42a formed on the power transmission component 42 is used for explanation, but the present invention is not limited to this structure. For example, the first assembly portion may also be composed of the convex portion formed on the pedestal portion 31d and the recessed portion formed on the power transmission component 42. In the case of such a structure, for example, even if a power transmission component without a recessed portion (a power transmission component used in a reflector device different from the reflector device 200 involved in the embodiment) is intended to be mistakenly assembled, the convex portion of the pedestal portion 31d can be used to restrict the assembly of the reflector 30 and the power transmission component. With this structure, the occurrence of incorrect assembly is suppressed.

[0086] In addition, in the above-mentioned embodiment, the second assembly part is described using an example in which the second assembly part is composed of the protrusion 32b formed on the rotating shaft 32 and the opening 42b formed on the power transmission member 42, but the present invention is not limited to this structure. For example, the second assembly part may also be composed of a recessed portion formed on the rotating shaft 32 and a protrusion formed on the wall portion 42d of the power transmission member 42.

[0087] In addition, in the above-mentioned embodiment, the structure in which the pedestal portion 31d and the rotating shaft 32 are provided on the first side wall 31b of the main body portion 31, and the rotating shaft 33 is provided on the second side wall 31c of the main body portion 31 is described as an example, but the present invention is not limited to this structure. For example, the structure in which the pedestal portion 31d and the rotating shaft 32 are provided on the second side wall 31c of the main body portion 31, and the rotating shaft 33 is provided on the first side wall 31b of the main body portion 31 may also be provided. In addition, in this case, the shape of the power transmission component 42 suitable for the structure in which the pedestal portion 31d and the rotating shaft 32 are provided on the first side wall 31b and the shape of the power transmission component 42 suitable for the structure in which the pedestal portion 31d and the rotating shaft 32 are provided on the second side wall 31c are in a mirror-symmetric relationship with each other. Therefore, for example, even when the power transmission component 42 suitable for the structure in which the pedestal portion 31d and the rotating shaft 32 are provided on the first side wall 31b is intended to be assembled to the rotating shaft 32 of the reflector 30 in which the pedestal portion 31d and the rotating shaft 32 are provided on the second side wall 31c, the first assembling portion (recessed portion 31e, convex portion 42a), the second assembling portion (32b, 42b) or the third assembling portion (32c, 42c) does not fit together, so the assembly of the reflector 30 and the power transmission component 42 is restricted. That is, since the assembly of the reflector 30 and the power transmission component 42 which are not a standard combination is restricted, the occurrence of incorrect assembly is suppressed. In addition, similarly, even in the case where it is desired to assemble a power transmission component 42 suitable for a structure in which a base portion 31d and a rotating shaft 32 are provided on the second side wall 31c to the rotating shaft 32 of the reflector 30 having a structure in which a base portion 31d and a rotating shaft 32 are provided on the first side wall 31b, since the first assembly portion (recess 31e, convex portion 42a), the second assembly portion (32b, 42b) or the third assembly portion (32c, 42c) are not engaged, the assembly of the reflector 30 and the power transmission component 42 is restricted, thereby suppressing the occurrence of incorrect assembly.

[0088] In addition, in the above-mentioned embodiment, the structure in which the image display device 20, the mirror device 200, the reflective component RM and the control unit CR are assembled in the lower housing 11 is described as an example, but the present invention is not limited to this structure. For example, the image display device 20, the mirror device 200, the reflective component RM and the control unit CR may be assembled in the upper housing 12.

[0089] The contents disclosed in the above-mentioned embodiments can be executed in combination as appropriate.

Claims

1. A reflector device, characterized in that: have: a reflector, the reflector comprising a main body and a rotation axis, the main body having a reflection surface for reflecting display light, the rotation axis protruding from a side wall of the main body; a motor including an output shaft disposed on a rotation axis of the rotation shaft; as well as a power transmission member for transmitting a driving force of the motor to the rotating shaft, The power transmission member and the reflector have a first assembly portion formed therein, and the first assembly portions are fitted with each other in a direction along the rotation axis at a position adjacent to the rotation axis.

2. The reflector device according to claim 1, characterized in that In the power transmission device and the reflector, when the relative position of the rotating shaft and the power transmission component is a standard position and the rotating shaft and the power transmission component are assembled, the first assembly parts are interlocked with each other, and when the relative position of the rotating shaft and the power transmission component is a non-standard position and the rotating shaft and the power transmission component are to be assembled, the first assembly parts are not interlocked with each other.

3. The reflector device according to claim 1 or 2, characterized in that: A second assembly portion that fits with each other is formed at the distal end of the rotating shaft and the power transmission member. In the terminal portion of the rotating shaft and the power transmission component, when the relative position of the rotating shaft and the power transmission component is a standard position and the rotating shaft and the power transmission component are assembled, the second assembly parts are interlocked with each other, and when the relative position of the rotating shaft and the power transmission component is a non-standard position and the rotating shaft and the power transmission component are to be assembled, the second assembly parts are not interlocked with each other.

4. A vehicle display device, characterized in that: have: a frame having an opening; an image display device, which is disposed in the frame and outputs display light of an image; and a reflector device, wherein the reflector device is arranged in the frame, The reflector device comprises: a reflector, the reflector comprising a main body having a reflecting surface for reflecting display light from the image display device toward the opening, and a rotating shaft protruding from a side wall of the main body; a motor including an output shaft disposed on a rotation axis of the rotation shaft; as well as a power transmission member for transmitting a driving force of the motor to the rotating shaft, The power transmission member and the reflector have a first assembly portion formed therein, and the first assembly portions are fitted with each other in a direction along the rotation axis at a position adjacent to the rotation axis.

Images