JP2020134703A - Mirror device and head-up display device - Google Patents

Abstract

To provide a mirror device and a head-up display device capable of rotating a reflection part smoothly.SOLUTION: A mirror device comprises: a concave mirror; a holder main body 36 rotatably supported with a rotation axis as a center, for holding the concave mirror; a lever part 38p fixed at the holder main body 36; and a mirror drive unit 40 having a slider part 43 sandwiching the lever part 38p and a motor 42 moving the slider 43 in a Z direction crossing the rotation axis to rotate the holder main body 36 around the rotation axis. The lever part 38p has a curve surface in point contact with the slider part 43.SELECTED DRAWING: Figure 5

Description

The present invention relates to a mirror device and a head-up display device.

Conventionally, a head-up display device that displays a virtual image by irradiating a windshield or the like with display light has been known. For example, the head-up display device described in Patent Document 1 includes a concave mirror that reflects display light, a mirror holder that supports the concave mirror, and a position adjusting means that adjusts the tilt angle of the concave mirror. The mirror holder that supports the concave mirror includes a protruding piece that protrudes from the center of its width. The position adjusting means includes a motor, a lead screw that rotates by driving the motor, a moving member that moves along the axial direction of the lead screw when the lead screw rotates, and a moving member that moves together with the moving member and moves the protruding piece in the thickness direction thereof. It is provided with a first leaf spring and a second leaf spring sandwiched from the above. As the moving member moves, the projecting piece is pushed through the first leaf spring and the second leaf spring, whereby the concave mirror rotates about the rotation axis.

International Publication No. 2016/093163

In the configuration described in Patent Document 1, as shown in FIGS. 8 and 9 of Patent Document 1, the first leaf spring and the second leaf spring are in line contact with the protruding pieces, respectively. Therefore, when the rotation axis of the concave mirror is not orthogonal to the moving direction of the moving member due to an assembly error of the mirror holder, a shape error, or a design factor, as shown in FIGS. 10A and 10B. The protruding piece 105 may be tilted with respect to the first leaf spring 101 and the second leaf spring 102, and the contact pressure of the first leaf spring 101 and the second leaf spring 102 with respect to the protruding piece 105 may be biased. In FIG. 10A, the contact pressure at the first position 121 is larger than the contact pressure at the second position 122. Therefore, the smooth movement of the moving member is hindered, which may hinder the smooth rotation of the concave mirror.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a mirror device and a head-up display device capable of smoothly rotating a reflecting portion.

In order to achieve the above object, the mirror device according to the first aspect of the present invention includes a reflector, a holder body that is rotatably supported around a rotation axis and holds the reflector, and a holder body. A mirror having a lever portion fixed to, a slider portion that sandwiches the lever portion, and a drive portion that rotates the holder main body portion around the rotation axis by moving the slider portion in a direction intersecting the rotation axis. It includes a drive unit, and the lever portion has a curved surface that makes point contact with the slider portion.

In order to achieve the above object, the head-up display device according to the second aspect of the present invention includes the mirror device and a display unit that emits display light, and the reflection unit is the above-mentioned from the display unit. A virtual image is displayed by reflecting the display light toward the projected member.

According to the present invention, the reflecting portion can be smoothly rotated in the mirror device and the head-up display device.

It is a schematic diagram of the vehicle which mounted the head-up display device which concerns on one Embodiment of this invention. It is the schematic of the head-up display device which concerns on one Embodiment of this invention. It is a perspective view of the holder and the mirror drive unit which concerns on one Embodiment of this invention. It is a perspective view of the mirror drive unit which concerns on one Embodiment of this invention. It is a side view of the mirror drive unit which concerns on one Embodiment of this invention. It is a perspective view of the attachment member which concerns on one Embodiment of this invention. It is a perspective view of the slider part which concerns on one Embodiment of this invention. It is sectional drawing of the attachment member and the slider part which concerns on one Embodiment of this invention. It is a top view of the mirror drive unit which concerns on one Embodiment of this invention. (A) according to the background technique is a plan view of a projecting piece, a first leaf spring and a second leaf spring, and (b) is a side view of the projecting piece, the first leaf spring and the second leaf spring.

An embodiment of the mirror device and the head-up display device according to the present invention will be described with reference to the drawings.
As shown in FIG. 1, the head-up display device 100 is installed in the dashboard of the vehicle 200. The head-up display device 100 emits display light L representing an image toward the windshield 201, which is an example of the projected member of the vehicle 200. The display light L is reflected by the windshield 201 and reaches the viewer 1 (mainly the driver of the vehicle 200). As a result, the virtual image V is visually displayed by the viewer 1.

As shown in FIG. 2, the head-up display device 100 includes a display unit 10, a folded mirror 20, a mirror device 46, a housing 60, and a control unit 70. The mirror device 46 includes a mirror unit 30 that reflects the display light L and a mirror drive unit 40 that drives the mirror unit 30.

The display unit 10 emits display light L representing an image under the control of the control unit 70. The display unit 10 includes, for example, a light source and a liquid crystal display panel (not shown).

The folded mirror 20 is made of, for example, a plane mirror, and reflects the display light L emitted by the display unit 10 toward the mirror unit 30.

The housing 60 is made of a non-transmissive resin or metal and forms a hollow rectangular parallelepiped. An opening 61 is formed in the housing 60 at a position facing the windshield 201. The housing 60 includes a curved plate-shaped window portion 50 that closes the opening 61. The window portion 50 is made of a translucent resin such as acrylic through which the display light L is transmitted. Each configuration of the head-up display device 100 is housed in the housing 60.

The control unit 70 includes a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), and the like, and controls the display unit 10 and the motor 42 described later of the mirror drive unit 40. The control unit 70 rotates the mirror unit 30 around the rotation axis Ax by driving the motor 42.

As shown in FIG. 2, the mirror unit 30 includes a concave mirror 31 that reflects the display light L and a holder 35 that supports the concave mirror 31 from the back surface.
In the following description, left and right, top and bottom, and front and back are defined based on the direction when the concave mirror 31 of the mirror unit 30 is viewed from the front. In FIGS. 3 to 8, the left is abbreviated as Lf, the right is abbreviated as Rt, the upper is abbreviated as Up, the lower is abbreviated as Dn, the front is abbreviated as Fr, and the back is abbreviated as Bk. .. Further, the left-right direction coincides with the X direction, the vertical direction coincides with the Y direction, and the front-back direction coincides with the Z direction.

The concave mirror 31 is formed in a substantially rectangular plate shape long in the X direction, and is curved in a concave shape along the X direction. The concave mirror 31 reflects the display light L reflected by the folded mirror 20 while enlarging it toward the windshield 201. The concave mirror 31 is an example of a reflecting portion.

As shown in FIG. 3, the holder 35 has a mounted portion 37, a holder main body portion 36 that supports the back surface of the concave mirror 31, a shaft portion 33 that is supported by a shaft support member (not shown), and a mounted portion 37. It includes an attachment member 38 having a lever portion 38p attached to the. The holder 35 is made of a lightweight hard metal such as magnesium.

The holder main body 36 is curved in a concave shape along the back surface of the concave mirror 31 along the X direction. The holder main body portion 36 includes a plurality of adhesive portions 36a. The plurality of adhesive portions 36a are located on the surface of the holder main body portion 36 and are arranged along the X direction. The front surface of each adhesive portion 36a is fixed to the back surface of the concave mirror 31 via an adhesive (not shown).

The attached portion 37 is located at the lower end of the holder main body portion 36 on the left side of the center in the X direction. The attached portion 37 has a rectangular plate shape whose thickness direction coincides with the Z direction and is long in the X direction. The attached portion 37 is gripped from the thickness direction of the attached portion 37 by the slider portion 43 described later of the mirror drive unit 40.
As shown in FIG. 6, the attached portion 37 is formed with fitting holes 37a and screw-through holes 37b and 37c. A fitting portion 38a2, which will be described later, of the attachment member 38 is fitted into the fitting hole 37a. The fitting hole 37a is located at the center of the mounted portion 37 in the X direction, penetrates in the thickness direction of the mounted portion 37, and has a concave shape that opens downward.
The screw-through holes 37b and 37c are arranged in the X direction so as to sandwich the fitting holes 37a.

As shown in FIG. 5, the mirror drive unit 40 includes a motor 42, a lead screw 41, a slider portion 43, a guide portion 44, and a support member 45.
The support member 45 is a metal fitting that supports the motor 42, the lead screw 41, and the guide portion 44. The support member 45 includes a first plate portion 45a, a second plate portion 45b, and a third plate portion 45c. The first plate portion 45a and the second plate portion 45b are arranged in the Z direction and face each other. The third plate portion 45c extends in the Z direction so as to connect the lower ends of the first plate portion 45a and the second plate portion 45b.

The lead screw 41 is formed in a columnar shape extending in the Z direction, and is supported so as to be axially rotatable between the first plate portion 45a and the second plate portion 45b. A slider portion 43 is fitted on the outer circumference of the lead screw 41.
The guide portion 44 is for guiding the movement of the slider portion 43, has a columnar shape extending in the Z direction, and is supported between the first plate portion 45a and the second plate portion 45b.
The motor 42 is fixed to the back surface of the first plate portion 45a of the support member 45. The motor 42 pivotally rotates the lead screw 41 under the control of the control unit 70.

As shown in FIG. 5, the slider portion 43 includes a slider main body portion 43a, an urging member 43b, and a pressing member 43c.
The slider main body 43a includes a nut 43n that is fitted to the lead screw 41. When the lead screw 41 rotates about the axis of the nut 43n, the nut 43n moves in the Z direction together with the slider portion 43 along the axial direction of the lead screw 41.

The urging member 43b includes a leaf spring portion 43b1 and a spring holding portion 43b2 that holds the leaf spring portion 43b1.
The spring holding portion 43b2 is located on the front side of the upper surface of the slider main body portion 43a and holds the end portion of the leaf spring portion 43b1.
The leaf spring portion 43b1 is formed of metal in a V-shaped plate shape that opens downward. The leaf spring portion 43b1 is formed so as to be elastically deformable in the Z direction. The leaf spring portion 43b1 extends linearly upward from the spring holding portion 43b2 along the Y direction, and inclines so as to approach the back side from the upper end of the leaf spring portion 43b1 downward.

As shown in FIG. 7, the leaf spring portion 43b1 has a virtual contactable line 43b3 that is accessible to the lever portion 38p. The contactable line 43b3 extends in the X direction along the innermost corner of the leaf spring portion 43b1. The leaf spring portion 43b1 makes point contact with the lever portion 38p at any position of the contactable line 43b3, and urges the lever portion 38p toward the pressing member 43c.

As shown in FIGS. 5 and 7, the pressing member 43c includes a semi-cylindrical pin 43c1 and a semi-cylindrical pin support portion 43c2 that supports the semi-cylindrical pin 43c1.
The semi-cylindrical pin support portion 43c2 is located on the back side of the upper surface of the slider main body portion 43a and has a plate shape along the XY plane. The semi-cylindrical pin 43c1 is fixed to the surface of the semi-cylindrical pin support portion 43c2.
The semi-cylindrical pin 43c1 is formed in a semi-cylindrical shape extending along the X direction. The planar side surface of the semi-cylindrical pin 43c1 extending in the X direction is fixed to the surface of the semi-cylindrical pin support portion 43c2. As shown in FIG. 7, the semi-cylindrical pin 43c1 has a virtual contactable line 43c3 that is accessible to the lever portion 38p. The contactable line 43c3 is located on the outermost side of the semi-cylindrical pin 43c1 and extends in the X direction along the top of the semi-cylindrical pin 43c1. As shown in FIG. 9, the contactable line 43c3 is parallel to the contactable line 43b3 and is positioned so as to sandwich the outer peripheral surface of the lever portion 38p together with the contactable line 43b3. The semi-cylindrical pin 43c1 makes point contact with the lever portion 38p at any position of the contactable line 43c3, and pushes the lever portion 38p toward the urging member 43b. In this way, the urging member 43b and the urging member 43b sandwich the lever portion 38p.

As shown in FIG. 6, the attachment member 38 is a member that is attached to the attached portion 37 of the holder 35, and is removable from the attached portion 37. The attachment member 38 is made of a material having a lower coefficient of friction than the holder 35. For example, the attachment member 38 is made of a hard metal that is harder than the material of the holder 35, and is provided with a low friction layer having a higher slidability than the hard metal, that is, a low friction coefficient. For example, the attachment member 38 is composed of stainless steel, which is a hard metal, and chrome plating as a low friction layer laminated on the peripheral surface of stainless steel. The stainless steel is preferably SUS440C.

Specifically, as shown in FIGS. 6 and 8, the attachment member 38 includes a lever portion 38p, a set screw 38n, a pin support member 38a, and a screw 38b.
The pin support member 38a includes a base portion 38a1 and a fitting portion 38a2. The base portion 38a1 has a rectangular plate shape that is long in the X direction and comes into contact with the back surface of the attached portion 37. As shown in FIG. 4, three screw holes 38g1, 38g2, 38g3 arranged in the X direction are formed in the base portion 38a1.
The screw holes 38g1 and 38g2 penetrate in the thickness direction of the base portion 38a1 and are located at both ends of the base portion 38a1 in the X direction. The shaft portions of the screws 38b that pass through the screw passage holes 37b and 37c of the mounted portion 37 shown in FIG. 6 are screwed into the screw holes 38g1 and 38g2. The head of the screw 38b is located on the surface of the attached portion 37. The attachment member 38 is fixed to the attached portion 37 by the screw 38b.
The screw holes 38g3 are located between the pair of screw holes 38g1, 38g2. A set screw 38n for fixing the lever portion 38p to the pin support member 38a is screwed into the screw hole 38g3.

As shown in FIG. 6, the fitting portion 38a2 forms a rectangular parallelepiped and is located at the center of the base portion 38a1 on the surface of the base portion 38a1 in the X direction. The fitting portion 38a2 fits into the fitting hole 37a of the mounted portion 37.
A pin hole 38h into which the upper end of the lever portion 38p is fitted is formed on the lower surface of the fitting portion 38a2. As shown in FIG. 8, the pin hole 38h communicates with the screw hole 38g3 orthogonal to the pin hole 38h. A set screw 38n is screwed into the screw hole 38g3. The set screw 38n comes into contact with the outer peripheral surface of the lever portion 38p in the screw hole 38g3. As a result, the lever portion 38p is fixed in the pin hole 38h by the set screw 38n.
The lever portion 38p has a columnar shape extending in the Y direction. The lower end of the lever portion 38p has a hemispherical shape. The outer peripheral surface of the lever portion 38p has a curved surface that makes point contact with the urging member 43b and the pressing member 43c. The lever portion 38p is sandwiched between the leaf spring portion 43b1 and the semi-cylindrical pin 43c1 so as to make point contact with each of the leaf spring portion 43b1 and the semi-cylindrical pin 43c1. It is being pushed toward.

The lever portion 38p rotates the holder 35 about the rotation axis Ax while changing the angle with respect to the Y direction as the slider portion 43 moves in the Z direction. Even at this time, the lever portion 38p maintains a state of being sandwiched between the leaf spring portion 43b1 and the semi-cylindrical pin 43c1.

In the above configuration, the attachment member 38 is attached to the attached portion 37 of the holder 35, and the lever portion 38p of the attachment member 38 is sandwiched between the slider portions 43. Depending on the model of the head-up display device 100, the attachment member 38 may not be attached to the attached portion 37, and the attached portion 37 may be directly sandwiched between the slider portions 43. As a result, it is not necessary to prepare different holders for each model, and the versatility of the holder 35 is enhanced.

The operation of the mirror device 46 will be described.
When the motor 42 is driven, the lead screw 41 rotates about its axis. Then, the slider portion 43 moves along the axial direction (Z direction) of the lead screw 41 while sandwiching the lever portion 38p. As a result, the mirror unit 30 rotates about the rotation axis Ax while the angle of the lever portion 38p with respect to the Y direction changes. At this time, the lever portion 38p slides on the urging member 43b and the pressing member 43c of the slider portion 43 while maintaining the state in which the lever portion 38p is in point contact with the slider portion 43. As the mirror unit 30 rotates, the display position of the virtual image V moves in the vehicle height direction.

For example, due to an assembly error when the mirror unit 30 is assembled in the housing 60, a shape error of the mirror unit 30 and the housing 60, or the design of the head-up display device 100, the rotation axis Ax of the concave mirror 31 is the slider portion 43. It may be set to be tilted from a desired angle (for example, 90 °) with respect to the moving direction (Z direction). In this case, as shown by the arrow A1 in FIG. 9, although the lever portion 38p is set at a position rotated about its axial direction, since the lever portion 38p has a curved surface, the urging member 43b and the pressing member 43c The point contact state is maintained.

For example, due to the above-mentioned assembly error, shape error, or design, the lever portion 38p may be set to be displaced in the X direction as shown by the arrow A2 in FIG. Even in this case, since the lever portion 38p is sandwiched between the contactable lines 43b3 and 43c3, the state in which the lever portion 38p is in point contact with the urging member 43b and the pressing member 43c is maintained.
As described above, the contact state of the lever portion 38p with respect to the slider portion 43 can be maintained regardless of the posture of the lever portion 38p. Therefore, the slider portion 43 can be smoothly moved, and thus the concave mirror 31 can be smoothly rotated.

(effect)
According to the embodiment described above, the following effects are obtained.
(1-1) The mirror device 46 is fixed to a concave mirror 31 which is an example of a reflecting portion, a holder main body 36 which is rotatably supported around the rotation axis Ax and holds the concave mirror 31, and a holder main body 36. This is an example of a drive unit that rotates the holder body 36 around the rotation shaft Ax by moving the lever portion 38p, the slider portion 43 that sandwiches the lever portion 38p, and the slider portion 43 in the Z direction that intersects the rotation shaft Ax. A mirror drive unit 40 having a motor 42 is provided. The lever portion 38p has a curved surface that makes point contact with the slider portion 43.
According to this configuration, the lever portion 38p can be kept in point contact with the slider portion 43 regardless of the posture of the holder main body portion 36. Therefore, the slider portion 43 can be smoothly moved, and thus the concave mirror 31 can be smoothly rotated. Further, as a result, the load on the motor 42 is reduced, so that power consumption and noise can be reduced.
Further, regardless of the insertion angle of the lever portion 38p, the lever portion 38p is in a state of point contact with the slider portion 43, so that the robustness against the alignment error at the time of assembly is high.

(1-2) The lever portion 38p is formed in a columnar shape having an outer peripheral surface that is a curved surface. The slider portion 43 is located on the back side, which is one end side of the lever portion 38p, and is located on the front side, which is the other end side of the lever portion 38p, and the pressing member 43c, which makes point contact with the outer peripheral surface of the lever portion 38p. A urging member 43b that urges the lever portion 38p toward the pressing member 43c in a state of point contact with the outer peripheral surface of the above. The pressing member 43c and the urging member 43b each have contactable lines 43b3 and 43c3 that extend in the X direction at right angles to the axial direction of the lever portion 38p and can make point contact with the lever portion 38p.
As shown by the arrow A2 in FIG. 9, even if the lever portion 38p is displaced in the X direction due to the assembly error, the shape error, or the design described above, the state in which the lever portion 38p is in point contact with the slider portion 43 is maintained. Therefore, the slider portion 43 can be smoothly moved, and thus the concave mirror 31 can be smoothly rotated. Further, as described above, power consumption and noise are reduced, and robustness against alignment error during assembly is enhanced.

(1-3) The head-up display device 100 includes a mirror device 46 and a display unit 10 that emits display light L. The concave mirror 31 displays the virtual image V by reflecting the display light L from the display unit 10 toward the windshield 201, which is an example of the projected member.
According to this configuration, in the head-up display device 100, the concave mirror 31 can be smoothly rotated.

(2-1) The mirror unit 30 is rotatably supported around the concave mirror 31 and the rotation shaft Ax, and is detachably formed on the holder main body 36 that holds the concave mirror 31 and the holder main body 36. The attachment member 38 is sandwiched between the slider portions 43 that intersect the Ax and moves in the Z direction, and rotates the holder main body portion 36 around the rotation axis Ax as the slider portion 43 moves. The attachment member 38 is made of a material having a lower coefficient of friction than the holder body 36.
According to this configuration, the attachment member 38 slides with respect to the slider portion 43 as the slider portion 43 moves. At this time, since the attachment member 38 is formed of a low friction material, the friction of the attachment member 38 is reduced. Therefore, the slider portion 43 can be smoothly moved. This enables smooth rotation of the concave mirror 31. Further, as described above, power consumption and noise can be reduced.
Further, the attachment member 38 is removable from the holder main body 36. Therefore, the attachment member 38 can be arbitrarily attached to the holder main body 36 as needed, which enhances convenience.

(2-2) The holder main body 36 is made of magnesium, and the lever 38p is made of stainless steel laminated with chrome plating.
According to this configuration, since the holder main body 36 is formed to be lightweight and highly rigid, the drive load when rotating the holder main body 36 is reduced, and distortion of the concave mirror 31 is suppressed. ..
Further, since the lever portion 38p is made of stainless steel, it is formed harder than the holder main body portion 36. Therefore, the deformation of the lever portion 38p is suppressed. Further, since the lever portion 38p is chrome-plated, the friction of the lever portion 38p with respect to the slider portion 43 can be reduced. Further, as a result, the load on the motor 42 is reduced, so that power consumption and noise can be reduced.

(2-3) The head-up display device 100 includes a mirror unit 30 and a display unit 10 that emits display light L. The concave mirror 31 displays the virtual image V by reflecting the display light L from the display unit 10 toward the windshield 201, which is an example of the projected member.
According to this configuration, in the head-up display device 100, the concave mirror 31 can be smoothly rotated. Therefore, the display position of the virtual image V can be smoothly moved.

(2-4) The mirror unit 30 includes a mounted portion 37 fixed to the holder main body portion 36 and to which the attachment member 38 is mounted. The attached portion 37 is formed with a fitting hole 37a into which the fitting portion 38a2 of the attachment member 38 is fitted. A pin hole 38h into which the upper end of the lever portion 38p is fitted is formed on the lower surface of the fitting portion 38a2.
According to this configuration, by fitting the fitting portion 38a2 of the attachment member 38 into the fitting hole 37a of the attached portion 37, the displacement of the lever portion 38p in the X direction can be suppressed, and the positioning accuracy of the lever portion 38p can be improved. Can be enhanced.
Further, the lever portion 38p is provided at a position corresponding to the mounted portion 37 in the Z direction. Therefore, even in the configuration of the present embodiment, the same control as in the case where the attachment member 38 is not attached and the attached portion 37 is sandwiched by the slider portion 43 can be realized.

The present invention is not limited to the above embodiments and drawings. Changes (including deletion of components) can be made as appropriate without changing the gist of the present invention. An example of the modification will be described below.

(Modification example)
In the above embodiment, the lever portion 38p is formed in a columnar shape, but the lever portion 38p is not limited to this as long as it has a curved surface that makes point contact with the semi-cylindrical pin 43c1 and the leaf spring portion 43b1. For example, it may be formed in a plate shape having curved surfaces on the front surface and the back surface, or may be formed in an elliptical columnar shape. Further, the lever portion 38p may be formed in a prismatic shape having a corner portion that makes point contact with the semi-cylindrical pin 43c1 and the leaf spring portion 43b1.

In the above embodiment, as shown in FIG. 6, the attached portion 37 is formed with a fitting hole 37a into which the fitting portion 38a2 of the attachment member 38 is fitted, but the fitting hole 37a is omitted. You may. In this case, the lever portion 38p may be provided at a position different from that of the mounted portion 37 in the Z direction.

In the above embodiment, the lever portion 38p is formed separately from the pin support member 38a, but the present invention is not limited to this, and the lever portion 38p may be integrally formed.
Further, the positional relationship between the pressing member 43c and the urging member 43b in the above embodiment may be opposite.
Further, the position of the attachment member 38 is not limited to the above embodiment, and for example, the attachment member 38 may be formed so as to be attached to the shaft portion 33.

The configuration of the head-up display device 100 in the above embodiment can be changed as appropriate. For example, the folding mirror 20 may be omitted, and the display light L from the display unit 10 may be directly applied to the mirror unit 30. Further, instead of the concave mirror 31, a plane mirror may be provided as a reflecting portion.

In the above embodiment, the head-up display device 100 is mounted on the vehicle 200, but it may be mounted on a vehicle such as an airplane or a ship other than the vehicle 200. Further, the projected member is not limited to the windshield, and may be a dedicated combiner.

The pressing member 43c in the above embodiment may be an urging member having a leaf spring portion, similarly to the urging member 43b.

In the above embodiment, the attachment member 38 having the lever portion 38p is attached to the attached portion 37 of the holder 35, but the lever portion 38p may be integrally formed with the holder 35.

1 Viewer 10 Display part 20 Folded mirror 30 Mirror unit 31 Concave mirror 33 Shaft part 35 Holder 36 Holder body part 36a Adhesive part 37 Attached part 37a Fitting hole 38 Attachment member 38a Pin support member 38p Lever part 40 Mirror drive unit 41 Lead Screw 42 Motor 43 Slider part 43a Slider body part 43b Biasing member 43c Pressing member 43b1 Leaf spring part 43b2 Spring holding part 43c1 Semi-cylindrical pin 43b3, 43c3 Contactable line 43c2 Semi-cylindrical pin support part 44 Guide part 45 Supporting member 46 Mirror device 60 Housing 70 Control unit 100 Head-up display device 200 Vehicle 201 Front glass L Display light V Virtual image Ax Rotation axis

Claims (3)

Reflector and
A holder body that is rotatably supported around the rotation axis and holds the reflective part,
The lever part fixed to the holder body part and
It includes a slider portion that sandwiches the lever portion, and a mirror drive unit that has a drive portion that rotates the holder main body portion around the rotation axis by moving the slider portion in a direction intersecting the rotation axis.
The lever portion has a curved surface that makes point contact with the slider portion.
Mirror device. The lever portion is formed in a columnar shape having an outer peripheral surface which is a curved surface.
The slider unit
A pressing member located on one end side of the lever portion and in point contact with the outer peripheral surface of the lever portion.
A urging member located on the other end side of the lever portion and urging the lever portion toward the pressing member in a state of point contact with the outer peripheral surface of the lever portion.
The pressing member and the urging member each extend in a direction intersecting the axial direction of the lever portion and have a contactable line capable of making point contact with the lever portion.
The mirror device according to claim 1. The mirror device according to claim 1 or 2,
It is equipped with a display unit that emits display light.
The reflecting unit displays a virtual image by reflecting the display light from the display unit toward the projected member.
Head-up display device.