JP6651932B2 - Drive mechanism unit and head-up display device - Google Patents

Description

  The present invention relates to a drive mechanism unit and a head-up display device.

  For example, a head-up display device mounted on a vehicle deploys a combiner when in use and exposes it from a dashboard, and stores the combiner under a dashboard when not in use (for example, see Patent Document 1). In this technique, the combiner is moved between a deployed position and a stored position by rotation of a pair of control disks (cams) arranged on axes parallel to the left-right direction (vehicle width direction).

JP 2012-145902 A

  However, when the combiner is moved between a deployed position and a stored position by rotating a cam disposed on an axis parallel to the left-right direction as in Patent Document 1, the head-up display device has a size of the cam. This requires a large space in the front-rear direction of the vehicle. In addition, in the head-up display device, a display image generation unit that generates an image reflected by a combiner tends to be large in order to enlarge a display area and increase definition. However, the space of the vehicle in which the head-up display device is assembled is limited. Therefore, in the head-up display device, it has been desired to reduce the size of the driving mechanism unit.

  The present invention has been made in view of the above, and an object of the present invention is to provide a downsized drive mechanism unit and a head-up display device.

  In order to solve the above-mentioned problems and achieve the object, a drive mechanism unit according to the present invention is provided with a storage mechanism for moving a combiner between a development position exposed from a housing and a storage position stored in the housing. A drive unit, an angle adjustment drive unit that adjusts an angle of the combiner in a state where the combiner is positioned in the deployment position, and a movable unit that can move forward and backward above the combiner in a state where the combiner is positioned in the storage position. And a gear unit for supplying power to drive the unfolding and storage drive unit, the angle adjustment drive unit, and the protection lid drive unit, and a direction parallel to the front-rear direction of the vehicle. A drive gear that is arranged with a rotating shaft and that is rotated by the output of the gear unit and transmits power to the deployment storage drive unit, the angle adjustment drive unit, and the protection lid drive unit The deployment storage drive unit receives power from the drive gear, moves the combiner along a plane perpendicular to the rotation axis of the drive gear, and the angle adjustment drive unit receives the drive force from the drive gear. Power is transmitted to adjust the angle of the combiner, and the protection lid driving unit receives power from the drive gear to open and close the protection lid.

  In order to solve the above-described problems and achieve the object, a head-up display device according to the present invention includes a combiner unit and the above-described driving mechanism unit.

  ADVANTAGE OF THE INVENTION According to this invention, it is effective in providing the drive mechanism unit and head-up display apparatus which were miniaturized.

FIG. 1A is a schematic diagram schematically showing a head-up display device having a drive mechanism unit according to an embodiment mounted on a vehicle, and is a diagram showing a stored state of a combiner unit. FIG. 1B is a schematic diagram schematically illustrating a head-up display device having a drive mechanism unit according to the embodiment mounted on a vehicle, and is a diagram illustrating a deployed state of a combiner unit. FIG. 2 is a schematic diagram illustrating angle adjustment of a combiner unit using the drive mechanism unit according to the embodiment. FIG. 3 is a schematic diagram illustrating angle adjustment of a combiner unit using the drive mechanism unit according to the embodiment. FIG. 4A1 is a schematic diagram illustrating the drive mechanism unit according to the embodiment, and is a perspective view illustrating the windshield side in a stored state. FIG. 4A2 is a schematic view showing the drive mechanism unit according to the embodiment, and is a perspective view showing the driver's seat side in the retracted state. FIG. 4B1 is a schematic diagram illustrating the drive mechanism unit according to the embodiment, and is a perspective view illustrating the windshield side in an unfolded state. FIG. 4B2 is a schematic view illustrating the drive mechanism unit according to the embodiment, and is a perspective view illustrating the driver's seat side in an unfolded state. FIG. 5 is an exploded perspective view showing the drive mechanism unit according to the embodiment in an exploded manner. FIG. 6A is a rear view illustrating a mechanical chassis side of the drive mechanism unit according to the embodiment. FIG. 6B is a front view showing the driver's seat side of the drive mechanism unit according to the embodiment. FIG. 7A is a rear view illustrating the windshield side of the deployment and storage drive unit of the drive mechanism unit according to the embodiment, and is a diagram illustrating a protective lid operation. FIG. 7B is a rear view showing the windshield side of the deployment and storage drive unit of the drive mechanism unit according to the embodiment, and is a diagram showing the deployment and storage operation. FIG. 7C is a rear view illustrating the windshield side of the deployment and storage drive unit of the drive mechanism unit according to the embodiment, and is a diagram illustrating angle adjustment. FIG. 8A is a rear view illustrating a combiner side of a combiner drive cam plate of the drive mechanism unit according to the embodiment. FIG. 8B is a perspective view illustrating a combiner side of a combiner drive cam plate of the drive mechanism unit according to the embodiment. FIG. 8C is a perspective view illustrating a mechanical chassis side of a combiner driving cam plate of the driving mechanism unit according to the embodiment. FIG. 9 is a perspective view on the driver's seat side showing a deployment and storage operation by the drive mechanism unit according to the embodiment. FIG. 10 is a plan view illustrating the driving mechanism unit according to the embodiment, and is a diagram illustrating a stored state of the combiner unit. FIG. 11 is an exploded perspective view showing an exploded view of a combiner unit driven by the drive mechanism unit according to the embodiment. FIG. 12 is a cross-sectional view illustrating the unfolding and storing operation by the driving mechanism unit according to the embodiment. FIG. 13 is a perspective view showing a rotation shaft fixing / angle adjustment slider of the drive mechanism unit according to the embodiment. FIG. 14A is a side view illustrating an angle adjustment drive unit of the drive mechanism unit according to the embodiment. FIG. 14B is a side view illustrating the angle adjustment drive unit of the drive mechanism unit according to the embodiment. FIG. 14C is a side view illustrating the angle adjustment drive unit of the drive mechanism unit according to the embodiment. FIG. 14D is a side view illustrating the angle adjustment drive unit of the drive mechanism unit according to the embodiment. FIG. 14E is a side view illustrating the angle adjustment drive unit of the drive mechanism unit according to the embodiment. FIG. 15A is a front view illustrating an angle adjustment cam of the drive mechanism unit according to the embodiment. FIG. 15B is a perspective view illustrating an angle adjustment cam of the drive mechanism unit according to the embodiment. FIG. 15C is a perspective view illustrating an angle adjustment cam of the drive mechanism unit according to the embodiment. FIG. 16 is a perspective view illustrating a protection lid slider of the drive mechanism unit according to the embodiment. FIG. 17 is a perspective view illustrating a protective cover of the drive mechanism unit according to the embodiment. FIG. 18A is a side cross-sectional view illustrating a protective lid driving unit of the driving mechanism unit according to the embodiment. FIG. 18B is a side cross-sectional view illustrating a protection lid driving unit of the driving mechanism unit according to the embodiment. FIG. 18C is a side cross-sectional view illustrating a protection lid driving unit of the driving mechanism unit according to the embodiment. FIG. 18D is a side cross-sectional view illustrating a protection lid driving unit of the driving mechanism unit according to the embodiment. FIG. 19A is a perspective view illustrating the operation of the protective lid and the protective lid slider of the drive mechanism unit according to the embodiment. FIG. 19B is a perspective view illustrating the operation of the protective lid and the protective lid slider of the drive mechanism unit according to the embodiment. FIG. 19C is a perspective view illustrating the operation of the protective lid and the protective lid slider of the drive mechanism unit according to the embodiment. FIG. 20A is a plan view illustrating a protective cover of the drive mechanism unit according to the embodiment. FIG. 20B is a plan view illustrating a protective cover of the drive mechanism unit according to the embodiment. FIG. 20C is a partially enlarged view illustrating a protective cover of the drive mechanism unit according to the embodiment. FIG. 21 is a diagram illustrating an example of an output of the position sensor of the drive mechanism unit according to the embodiment.

  Hereinafter, an embodiment of a drive mechanism unit according to the present invention will be described in detail with reference to the accompanying drawings. The present invention is not limited by the following embodiments.

  In the following description, the front-rear direction is the traveling direction when the vehicle travels straight, and the front side in the traveling direction is “front” in the front-rear direction, and the rear side is “rear” in the front-rear direction. The front-back direction is defined as the X-axis direction. The left-right direction is a direction horizontally orthogonal to the front-rear direction. Toward the front side in the front-rear direction, the left hand side is “left” and the right hand side is “right”. The left-right direction is the Y-axis direction. The vertical direction is a direction orthogonal to the front-rear direction and the left-right direction. The vertical direction is the Z-axis direction. Therefore, the front-back direction, the left-right direction, and the up-down direction are orthogonal in three dimensions. In the following description, front, rear, left, right, and up and down refer to front and rear, left, right, and up and down in a state where the head-up display device (hereinafter, referred to as “HUD device”) 100 is mounted on the vehicle V. Each side view is shown in a left side view, but each configuration arranged symmetrically has the same configuration on the right side (not shown).

  FIG. 1A is a schematic diagram schematically showing a HUD device having a drive mechanism unit according to an embodiment mounted on a vehicle, and is a diagram showing a stored state of a combiner unit. FIG. 1B is a schematic diagram schematically showing a HUD device having a drive mechanism unit according to the embodiment mounted on a vehicle, and is a diagram showing a deployed state of a combiner unit. The HUD device 100 is disposed so as to be embedded in a dashboard D in front of the driver's seat. As shown in FIG. 1A, in the HUD device 100, when not in use, the combiner unit 110 is positioned at a storage position stored in the dashboard D and is in a stored state, so that the driver's view is not obstructed. . As shown in FIG. 1B, when used, the HUD device 100 is placed in the deployed position where the combiner unit 110 is deployed on the dashboard D, and is in the deployed state. The present invention is applicable not only to the combiner unit 110 disposed on the dashboard D but also to a unit mounted on a ceiling or the like (not shown).

  As shown in FIGS. 2 and 3, the HUD device 100 includes a drive mechanism unit 1, a combiner unit 110, a display image generation unit 120 that projects image display light to the combiner unit 110, a control circuit 130, And a housing 140 that accommodates them. FIG. 2 is a schematic diagram illustrating angle adjustment of a combiner unit using the drive mechanism unit according to the embodiment. FIG. 3 is a schematic diagram illustrating angle adjustment of a combiner unit using the drive mechanism unit according to the embodiment.

  The combiner unit 110 includes a combiner 111 and a combiner holder 112 that supports a lower side of the combiner 111. The combiner 111 reflects the image display light emitted from the display image generation unit 120. The combiner 111 is arranged so as not to come into contact with the windshield S.

  The display image generation unit 120 includes an image display 121, an illumination / radiation unit 122, and a folding mirror 123. The image display 121 displays an image. The lighting / radiating section 122 illuminates the image displayed on the image display 121. The folding mirror 123 reflects the image displayed on the image display 121 to the combiner 111. In the present embodiment, the video display 121 is disposed at the lower center in the housing 140. The lighting / radiating unit 122 is arranged in the housing 140 at the lower front side of the video display 121. The folding mirror 123 is disposed in the housing 140 on the upper rear side of the video display 121 so as to face the video display 121. The display image generation unit 120 having such a configuration reflects the display contents of the image display 121 illuminated by the illumination / radiation unit 122 with the folding mirror 123 and expands the combiner unit 110 in the drive mechanism unit 1. The virtual image K reflected on the driver's seat side surface of the combiner 111 is superimposed and displayed on the front scenery. The combiner 111 rotates around a horizontal axis on the lower end side and can adjust the angle so that the position of the virtual image K can be adjusted according to a viewer such as a driver. Here, the rotation axes of the angle adjustment of the combiner 111 are provided in the combiner unit 110 as a rotation axis 114R and a rotation axis 114L.

  The control circuit 130 controls the display of an image on the image display 121 and the illumination / radiation unit 122. The control circuit 130 performs various controls on the drive mechanism unit 1. The control circuit 130 is arranged on the lower side in the housing 140.

  The schematic configuration of the driving mechanism unit 1 will be described with reference to FIGS. 4A1 to 4B2 and FIG. FIG. 4A1 is a schematic diagram illustrating the drive mechanism unit according to the embodiment, and is a perspective view illustrating the windshield side in a stored state. FIG. 4A2 is a schematic view showing the drive mechanism unit according to the embodiment, and is a perspective view showing the driver's seat side in the retracted state. FIG. 4B1 is a schematic diagram illustrating the drive mechanism unit according to the embodiment, and is a perspective view illustrating the windshield side in an unfolded state. FIG. 4B2 is a schematic view illustrating the drive mechanism unit according to the embodiment, and is a perspective view illustrating the driver's seat side in an unfolded state. FIG. 5 is an exploded perspective view showing the drive mechanism unit according to the embodiment in an exploded manner.

  The driving mechanism unit 1 includes an opening / closing operation of the protective cover 72 of the HUD device 100, an extension / retraction operation of the combiner unit 110, a fixing operation of the rotating shaft 114R (see FIG. 11) and a rotating shaft 114L (see FIG. 11), and a combiner 111. Angle adjustment operation is performed. The drive mechanism unit 1 includes a mechanical chassis 2, a gear unit 3, a drive gear 4, a deployment storage drive unit 5, an angle adjustment drive unit 6, and a protection lid drive unit 7.

  The mechanical chassis 2 is disposed on a plane parallel to a surface on which the combiner unit 110 performs the expanding and storing operation. The gear unit 3 and the drive gear 4 are arranged on the surface of the mechanical chassis 2 on the driver's seat side. The mechanical chassis 2 has a combiner drive cam plate 51 of the deployment and storage drive unit 5 disposed on a surface on the windshield S side opposite to the surface on the driver's seat side.

  The gear unit 3 will be described with reference to FIGS. 6A and 6B. FIG. 6A is a rear view illustrating a mechanical chassis side of the drive mechanism unit according to the embodiment. FIG. 6B is a front view showing the driver's seat side of the drive mechanism unit according to the embodiment. In the gear unit 3, a motor 3b, a gear train 3c, and a position sensor (sensor) 3d are arranged in a gear unit case 3a. The rotation of the motor 3 b is transmitted to the drive gear 4. The motor 3b is a DC (Direct Current) motor. The motor 3b is connected to the control circuit 130, and its rotation direction and rotation speed are controlled. The position sensor 3d rotates in conjunction with the drive gear 4 via the gear 3e, and detects the rotation angle of the drive gear 4. The position sensor 3d outputs the detected rotation angle of the drive gear 4 to the control circuit 130. Based on the rotation angle of the drive gear 4, the states of the deployment storage drive unit 5, the angle adjustment drive unit 6, and the protection lid drive unit 7 are determined. In the present embodiment, one position sensor 3d detects the state of the deployment storage drive unit 5, the angle adjustment drive unit 6, and the protective lid drive unit 7, but the deployment storage drive unit 5 and the angle adjustment drive unit 6 A detection switch, a position sensor, a position sensor of a motor, and the like are arranged on the protection cover driving unit 7 and the protection lid driving unit 7, respectively, and detect the states of the deployment storage driving unit 5, the angle adjustment driving unit 6, and the protection lid driving unit 7, respectively. Is also good. In the present embodiment, the closed loop control is performed by the motor 3b and the position sensor 3d. However, the open loop control may be performed by using the motor 3b as a stepping motor, eliminating the position sensor 3d and using an origin detection switch.

  The drive gear 4 rotates with the output of the gear unit 3. The drive gear 4 transmits the rotational movement to the deployment and storage drive unit 5, the angle adjustment drive unit 6, and the protective lid drive unit 7. The drive gear 4 has a rotating shaft 4 d extending in a direction orthogonal to the mechanical chassis 2. In other words, the drive gear 4 rotates in a plane parallel to the mechanical chassis 2. As shown in FIG. 6A, the drive gear 4 has a deployment storage drive shaft 4 a that transmits the rotational movement of the drive gear 4 to the deployment storage drive unit 5 on a surface that is in contact with the mechanical chassis 2. As shown in FIG. 6B, the drive gear 4 includes an angle adjustment unit drive shaft 4 b that transmits the rotational motion of the drive gear 4 to the angle adjustment drive unit 6 on the opposite surface, and a protection lid slider 71 of the protection lid drive unit 7. Gear cam drive shaft 713 is meshed, and a protective lid drive cam 4c that transmits the rotational movement of the drive gear 4 is disposed in the protective lid drive unit 7. The protective lid drive cam 4c has a curved protective lid opening / closing operation area 4c1 in which the distance from the rotation center of the drive gear 4 changes and an arc-shaped protection lid non-operation area 4c2 in which the distance from the rotation center is constant. . The protection lid opening / closing operation area 4c1 and the protection lid non-operation area 4c2 are smoothly continuous.

  7A to 7C, FIGS. 8A to 8C, and FIG. 9, the deployment storage drive unit 5 will be described. FIG. 7A is a rear view illustrating the windshield side of the deployment and storage drive unit of the drive mechanism unit according to the embodiment, and is a diagram illustrating a protective lid operation. FIG. 7B is a rear view showing the windshield side of the deployment and storage drive unit of the drive mechanism unit according to the embodiment, and is a diagram showing the deployment and storage operation. FIG. 7C is a rear view illustrating the windshield side of the deployment and storage drive unit of the drive mechanism unit according to the embodiment, and is a diagram illustrating angle adjustment. FIG. 8A is a rear view illustrating a combiner side of a combiner drive cam plate of the drive mechanism unit according to the embodiment. FIG. 8B is a perspective view illustrating a combiner side of a combiner drive cam plate of the drive mechanism unit according to the embodiment. FIG. 8C is a perspective view illustrating a mechanical chassis side of a combiner driving cam plate of the driving mechanism unit according to the embodiment. FIG. 9 is a perspective view on the driver's seat side showing a deployment and storage operation by the drive mechanism unit according to the embodiment.

  The deployment storage driving unit 5 performs the deployment storage operation of the combiner unit 110. The deployment storage drive unit 5 includes a combiner drive cam plate 51, a pair of cam plate guides 52R and a cam plate guide 52L, a pair of drive arms 53R and a drive arm 53L, a pair of combiner arms 54R and a combiner arm 54L, Rail 55R and a rail 55L.

  The combiner drive cam plate 51 is formed of a plate-like material. The combiner driving cam plate 51 includes a first cam groove (cam groove) 511, a pair of second cam grooves 512R and a second cam groove 512L, a pair of guide holes 513R and a guide hole 513L, and a combiner guide groove 514. Are formed.

  The first cam groove 511 is meshed with the extended storage drive shaft 4 a of the drive gear 4. The first cam groove 511 includes an arc-shaped cam groove (first arc-shaped cam groove) 511a formed in an arc shape having the same diameter as the rotation radius of the deployment and storage drive shaft 4a, and a direction in which the combiner driving cam plate 51 linearly moves. A straight cam groove 511b formed in a straight line along a direction orthogonal to the upper direction, and an upper arc-shaped cam groove (second arc cam) formed in an arc having the same diameter as the rotation radius of the deployment and storage drive shaft 4a. (Groove) 511c. The arcuate cam groove 511a, the linear cam groove 511b, and the upper arcuate cam groove 511c are smoothly continuous. As shown in FIG. 7A, when the drive gear 4 rotates, when the deployed storage drive shaft 4a is engaged with the circular cam groove 511a, the circular cam groove 511a has the same diameter as the rotational radius of the deployed storage drive shaft 4a. Therefore, the combiner driving cam plate 51 does not operate. As shown in FIG. 7B, in a state in which the deployment storage drive shaft 4a is engaged with the linear cam groove 511b, the combiner drive cam plate 51 moves along the combiner deployment storage direction (hereinafter, simply referred to as “deployment storage direction”). Make a linear motion. The unfolding and storing direction is a direction along the height direction of the mechanical chassis 2. As shown in FIG. 7C, in a state where the expansion and storage drive shaft 4a is engaged with the upper arc-shaped cam groove 511c, the upper arc-shaped cam groove 511c has the same diameter as the rotation radius of the expansion and storage drive shaft 4a. The cam plate 51 does not operate.

  The second cam groove 512R and the second cam groove 512L are arranged symmetrically on a straight line. The drive shaft 531R of the drive arm 53R is engaged with the second cam groove 512R. The drive shaft 531L of the drive arm 53L is engaged with the second cam groove 512L.

  The guide holes 513R and 513L are arranged symmetrically. The shaft 521R of the cam plate guide 52R is slidably inserted into the guide hole 513R. The shaft 521L of the cam plate guide 52L is slidably inserted into the guide hole 513L. In the present embodiment, the shaft 521R and the shaft 521L are guided by the guide holes 513R and 513L of the combiner driving cam plate 51. However, the structure is such that the combiner driving cam plate 51 linearly moves in the unfolded and stored direction. If so, another configuration may be used.

  The combiner guide groove 514 is formed along a direction parallel to the guide holes 513R and 513L. In the combiner guide groove 514, a left and right regulating guide portion 112a of a projecting plate shape of the combiner holder 112 is inserted. By inserting the left and right regulating guide portions 112a into the combiner guide grooves 514, when the combiner unit 110 is deployed and stored, the combiner unit 110 is prevented from shifting or tilting in the left-right direction. In the present embodiment, the combiner drive cam plate 51 side has a groove structure, and the combiner holder 112 side has a protrusion plate shape. However, the combiner drive cam plate 51 side may have a protrusion plate shape, and the combiner holder 112 side may have a groove structure. .

  The cam plate guide 52R and the cam plate guide 52L are symmetrically arranged. The cam plate guide 52R and the cam plate guide 52L guide the combiner driving cam plate 51 so as to linearly move in the deployment and storage direction. The cam plate guide 52R has a rod-shaped shaft 521R. The cam plate guide 52R is fixed to the mechanical chassis 2 via an upper shaft holder 522R and a lower shaft holder 523R. The cam plate guide 52L has a rod-shaped shaft 521L. The cam plate guide 52L is fixed to the mechanical chassis 2 via an upper shaft holder 522L and a lower shaft holder 523L.

  The rotation shaft 524R of the drive arm 53R is formed integrally with the lower shaft holder 523R. The rotation shaft 524L of the drive arm 53L is formed integrally with the lower shaft holder 523L. In the present embodiment, the lower shaft holder 523R and the rotation shaft 524R are integrated with each other, and the lower shaft holder 523L and the rotation shaft 524L are integrated, but may be formed separately.

  The drive arm 53R and the drive arm 53L are symmetrically arranged. The drive arm 53R and the drive arm 53L are formed in a plate shape. The drive arm 531R is provided with a drive shaft 531R that meshes with the second cam groove 512R. One end of the drive arm 53R is connected to the rotation shaft 524R of the lower shaft holder 523R. The drive arm 53R rotates around the rotation shaft 524R. On the other end side of the drive arm 53R, a rotation shaft 532R is arranged along a direction orthogonal to the operation plane of the combiner drive cam plate 51. The drive arm 53L is provided with a drive shaft 531L that meshes with the second cam groove 512L. One end of the drive arm 53L is connected to the rotation shaft 524L of the lower shaft holder 523L. The drive arm 53L rotates around a rotation shaft 524L. On the other end side of the drive arm 53L, a rotation shaft 532L is arranged along a direction orthogonal to the operation plane of the combiner drive cam plate 51.

  The combiner arm 54R and the combiner arm 54L are symmetrically arranged. The combiner arm 54R is rotatably connected to the drive arm 53R via a rotation shaft 532R. The combiner arm 54R is rotatably connected to a rotation shaft arm holder 113R of the combiner unit 110 via a rotation shaft 113aR. The combiner arm 54L is rotatably connected to the drive arm 53L via a rotation shaft 532L. The combiner arm 54L is rotatably connected to a rotating shaft arm holder 113L of the combiner unit 110 via a rotating shaft 113aL.

  The drive arm 53R and the combiner arm 54R and the drive arm 53L and the combiner arm 54L having such a configuration rotate synchronously and symmetrically when the drive gear 4 rotates.

  The distance between the rotating shaft 524R and the rotating shaft 532R, the distance between the rotating shaft 524L and the rotating shaft 532L, the distance between the rotating shaft 524R and the driving shaft 531R, the distance between the rotating shaft 524L and the driving shaft 531L, and the rotating shaft 532R. Due to the relationship between the distance between the rotation shaft 113aR and the distance between the rotation shaft 532L and the rotation shaft 113aL, the amount of movement of the combiner driving cam plate 51 is enlarged, and the combiner unit 110 linearly moves in the unfolded and stored direction. The enlargement ratio of the movement amount of the combiner unit 110 to the movement amount of the combiner driving cam plate 51 is preferably three times or less because the load applied to the deployment and storage drive shaft 4a of the drive gear 4 is also increased. In this manner, the protrusion amount of the combiner 111 is ensured by the drive mechanism unit 1 having substantially the same height as the height direction of the combiner unit 110.

  Here, the arrangement of the combiner drive cam plate 51, the drive arm 53R and the combiner arm 54R, and the drive arm 53L and the combiner arm 54L in the left-right direction will be described with reference to FIG. FIG. 10 is a plan view illustrating the driving mechanism unit according to the embodiment, and is a diagram illustrating a stored state of the combiner unit. In FIG. 10, for the sake of explanation, the protective cover 72 is removed and shown. Thus, the combiner drive cam plate 51, the drive arm 53R and the combiner arm 54R, and the drive arm 53L and the combiner arm 54L are arranged so as to fit between the rotation shaft 114R and the rotation shaft 114L of the combiner holder 112. I have. For this reason, the drive mechanism unit 1 has small dimensions in the front-rear direction and the left-right direction.

  The rail 55R and the rail 55L are symmetrically opposed to each other with the mechanical chassis 2 interposed therebetween. The rail 55R and the rail 55L are formed of a plate-like material. On the rail 55R, a first rail 551R into which the rotating shaft roller 115R of the combiner unit 110 is inserted and a second rail 552R into which the guide roller 117R is inserted are formed. The first rail 551R and the second rail 552R are formed along the deployment and storage direction. The first rail 551R and the second rail 552R are arranged at an interval in the front-rear direction. On the rail 55L, a first rail 551L into which the rotating shaft roller 115L of the combiner unit 110 is inserted, and a second rail 552L into which the guide roller 117L is inserted are formed. The first rail 551L and the second rail 552L are formed along the deployment and storage direction. The first rail 551L and the second rail 552L are arranged at an interval in the front-rear direction.

  Here, the connection structure between the unfolding / storage driving unit 5 and the combiner unit 110 operated by the unfolding / storage driving unit 5 will be described with reference to FIG. FIG. 11 is an exploded perspective view showing an exploded view of a combiner unit driven by the drive mechanism unit according to the embodiment. The deployment storage drive unit 5 is connected to a combiner unit 110 via a combiner holder 112. The combiner holder 112 includes a rotation shaft 114R, a rotation shaft roller 115R disposed on the rotation shaft 114R, a guide shaft 116R, a guide roller 117R disposed on the guide shaft 116R, a rotation shaft 114L, and a rotation shaft 114L. The arranged rotation shaft roller 115L, the guide shaft 116L, and the guide roller 117L arranged on the guide shaft 116L are arranged.

  The rotating shaft 114R and the rotating shaft 114L arranged in the same straight line are fitted into the combiner holder 112 via the rotating shaft arm holder 113R and the rotating shaft arm holder 113L, respectively. Thus, when the rotation axis arm holder 113R and the rotation axis arm holder 113L are operated by the expansion and storage drive unit 5, the combiner unit 110 is expanded and stored. When the combiner unit 110 is deployed and the rotation shaft 114R and the rotation shaft 114L are fixed by the angle adjustment drive unit 6, the angle of the combiner unit 110 is adjusted.

  The rotating shaft roller 115R and the rotating shaft roller 115L are inserted into linear first rails 551R and 551L of the rails 55R and 55L. Thus, the rotation shaft 114R and the rotation shaft 114L of the combiner unit 110 are regulated to move on a plane parallel to the operating plane of the combiner driving cam plate 51. The guide roller 117R and the guide roller 117L are inserted into the second rail 552R and the second rail 552L of the rail 55R and the rail 55L. Thus, when the combiner unit 110 is deployed and stored, the movement posture of the combiner unit 110 is restricted. In the present embodiment, the second rail 552R and the second rail 552L of the rail 55R and the rail 55L are linear in parallel with the first rail 551R and the first rail 551L, respectively. Although the movement is linear, the upper side of the second rail 551R and the second rail 552L is inclined or curved, so that the angle of the movement posture when the combiner unit is deployed can be controlled.

  Further, since the left and right regulating guide portions 112a of the combiner holder 112 are inserted into the combiner guide grooves 514 of the combiner driving cam plate 51, the moving posture of the combiner unit 110 does not tilt in the horizontal direction when the combiner unit 110 is deployed and stored. Is regulated as follows.

  As shown in FIG. 12, a leaf spring 119 is disposed below the combiner unit 110. FIG. 12 is a cross-sectional view illustrating the unfolding and storing operation by the driving mechanism unit according to the embodiment. Due to the reaction force of the leaf spring 119 pressing the rotating shaft arm holder 113R and the rotating shaft arm holder 113L, a rotating force acts on the rotating shaft 114R and the rotating shaft 114L so as to push the lower side of the combiner holder 112 forward. are doing. With this force, the guide roller 117R and the guide roller 117L are pressed against the front side of the second rail 552R of the rail 55R and the front side of the second rail 552L of the rail 55L. Thus, the combiner unit 110 operates while maintaining the posture when operating in the unfolded and stored direction.

  As shown in FIG. 7B, when the drive gear 4 rotates, the unfolding and storing drive unit 5 has the combiner driving cam plate 51 when the unfolding and storing drive shaft 4a is engaged with the linear cam groove 511b, as shown in FIG. 7B. Moves linearly along the deployment and storage direction. The drive arm 53R and the combiner arm 54R, and the drive arm 53L and the combiner arm 54L rotate synchronously and symmetrically when the combiner drive cam plate 51 moves linearly. In this way, the expansion and storage drive unit 5 performs the expansion and storage operation of the combiner unit 110.

  The angle adjustment drive unit 6 will be described with reference to FIGS. 13, 14A to 14E, and 15A to 15C. FIG. 13 is a perspective view showing a rotation shaft fixing / angle adjustment slider of the drive mechanism unit according to the embodiment. FIG. 14A is a side view illustrating an angle adjustment drive unit of the drive mechanism unit according to the embodiment. FIG. 14B is a side view illustrating the angle adjustment drive unit of the drive mechanism unit according to the embodiment. FIG. 14C is a side view illustrating the angle adjustment drive unit of the drive mechanism unit according to the embodiment. FIG. 14D is a side view illustrating the angle adjustment drive unit of the drive mechanism unit according to the embodiment. FIG. 14E is a side view illustrating the angle adjustment drive unit of the drive mechanism unit according to the embodiment. FIG. 15A is a front view illustrating an angle adjustment cam of the drive mechanism unit according to the embodiment. FIG. 15B is a perspective view illustrating an angle adjustment cam of the drive mechanism unit according to the embodiment. FIG. 15C is a perspective view illustrating an angle adjustment cam of the drive mechanism unit according to the embodiment.

  The angle adjustment drive unit 6 adjusts the angle of the combiner unit 110. The angle adjustment drive unit 6 includes a rotation axis fixing / angle adjustment slider (hereinafter, referred to as “slider”) 61, a rotation axis fixing lever 62 R and a rotation axis fixing lever 62 L, an angle adjustment cam 63, and a slider guide 64. .

  The slider 61 linearly moves in the deployment and storage direction in conjunction with the rotational movement of the drive gear 4. The slider 61 has a cam portion 612 disposed on a main body portion 611 formed by bending a plate-like material. An angle adjusting cam groove (hereinafter, referred to as “cam groove”) 613, a guide hole 614 </ b> R into which the shaft 641 </ b> R of the slider guide 64 is slidably inserted, and a shaft 641 </ b> L are slidably inserted into the cam portion 612. A guide hole 614L is formed. Thereby, the movement direction of the slider 61 is restricted to the unfolded and stored direction. The cam groove 613 is a cam groove that meshes with the angle adjustment unit drive shaft 4b of the drive gear 4. The cam groove 613 is formed by combining an arc-shaped cam groove 613a formed in an arc having the same diameter as the rotation radius of the angle adjustment unit drive shaft 4b, and a linear cam groove 613b formed linearly in the horizontal direction. Is formed. The arc-shaped cam groove 613a and the straight cam groove 613b are smoothly continuous. Since the arc-shaped cam groove 613a has the same diameter as the rotation radius of the angle adjustment unit drive shaft 4b, the slider 61 remains stopped without operating when the angle adjustment unit drive shaft 4b is engaged with the arc-shaped cam groove 613a. Becomes In this state, the opening and closing operation of the protective cover 72 and the operation of deploying and storing the combiner unit 110 are performed. When the angle adjustment unit drive shaft 4b is engaged with the linear cam groove 613b, the rotational movement of the drive gear 4 is transmitted, and the slider 61 linearly moves in the unfolded and stored direction. The slider 61 has a rotation shaft fixed lever drive shaft (hereinafter, referred to as a “lever drive shaft”) 615R and a lever drive shaft 615L, which are respectively provided in a cam groove 62aR of the rotation shaft fixed lever 62R and a cam groove 62aL of the rotation shaft fixed lever 62L. Are engaged. The slider 61 has an angle adjusting cam drive shaft 616 meshed with the angle adjusting cam 63.

  The rotating shaft fixing lever 62R and the rotating shaft fixing lever 62L fix or release the fixing of the rotating shaft 114R and the rotating shaft 114L of the combiner unit 110 in the deployed state. The rotation shaft fixing lever 62R and the rotation shaft fixing lever 62L are symmetrically arranged. The rotary shaft fixing lever 62R is formed with a cam groove 62aR that meshes with the lever drive shaft 615R of the slider 61. The cam groove 62aR is formed by combining a linear lower cam groove 62bR formed on the lower side and a linear upper cam groove 62cR formed on the upper side. The lower cam groove 62bR and the upper cam groove 62cR are smoothly continuous. A cam groove 62aL that meshes with the lever drive shaft 615L of the slider 61 is formed in the rotation shaft fixing lever 62L. The cam groove 62aL is formed by combining a linear lower cam groove 62bL formed on the lower side and a linear upper cam groove 62cL formed on the upper side. The lower cam groove 62bL and the upper cam groove 62cL are smoothly continuous. Since the cam groove 62aR and the lever drive shaft 615R of the slider 61 are engaged with each other, and the cam groove 62aL and the lever drive shaft 615L are engaged, the rotation shaft fixing lever 62R and the rotation shaft fixing lever 62L rotate synchronously and symmetrically. Exercise.

  The angle adjusting cam 63 adjusts the angle of the combiner unit 110. The angle adjusting cam 63 is disposed at one end in the left-right direction of the mechanical chassis 2. The rotation shaft 631 of the angle adjustment cam 63 is arranged along a direction parallel to the rotation shafts 114R and 114L of the combiner unit 110. The angle adjustment cam 63 is formed with a drive cam groove 63a having a linear elongated hole shape and an angle adjustment cam groove 63b. The drive cam groove 63a has a center axis passing through the center of the rotation shaft 631. The angle adjusting cam groove 63b is engaged with the angle adjusting unit drive shaft 118 of the combiner holder 112. The angle adjusting cam groove 63b is formed by combining a straight cam groove 63c formed in a straight line extending vertically and a curved cam groove 63d in a curved shape. The straight cam groove 63c and the curved cam groove 63d are smoothly continuous. When the combiner unit 110 performs the expanding and retracting operation, the angle adjusting unit drive shaft 118 meshes with the linear cam groove 63c. When adjusting the angle of the combiner 111, the curved cam groove 63d meshes with the angle adjusting unit drive shaft 118. The curved cam groove 63d is formed by a curve in which the distance of the angle adjusting cam 63 from the rotation shaft 631 is displaced so that the combiner 111 is at a predetermined angle with respect to the operation angle of the angle adjusting cam 63.

  The slider guide 64 is disposed on the mechanical chassis 2 with the upper shaft holder 642 and the lower shaft holder 643.

  14A and 14B, when the lever drive shaft 615L of the slider 61 is engaged with the lower cam groove 62bL, the angle adjustment drive unit 6 rotates by the linear motion of the slider 61, as shown in FIGS. 14A and 14B. The shaft fixing lever 62R and the rotating shaft fixing lever 62L rotate to perform an operation of fixing or releasing the fixing of the rotating shaft 114R and the rotating shaft 114L of the combiner unit 110.

  As shown in FIGS. 14C, 14D, and 14E, when the lever drive shaft 615L of the slider 61 is engaged with the upper cam groove 62cL, the upper cam groove 62cR and the upper cam groove 62cL are the operating direction of the slider 61. It is parallel to the expansion and storage direction. Therefore, even if the slider 61 moves linearly, the rotating shaft fixing lever 62R and the rotating shaft fixing lever 62L do not operate, and the rotating shaft 114R and the rotating shaft 114L of the combiner unit 110 remain fixed.

  When the rotation shaft 114R and the rotation shaft 114L of the combiner unit 110 are fixed, the linear motion of the angle adjustment cam drive shaft 616 of the slider 61 is transmitted, and the angle adjustment cam 63 rotates. The angle adjustment unit drive shaft 118 of the combiner holder 112 engaged with the adjustment cam groove 63b rotates. Thus, the angle of the combiner unit 110 changes about the rotation axis 114R and the rotation axis 114L.

  The protection lid driving unit 7 will be described with reference to FIGS. 16, 17, 18A to 18D, 19A to 19C, and 20A to 20C. FIG. 16 is a perspective view illustrating a protection lid slider of the drive mechanism unit according to the embodiment. FIG. 17 is a perspective view illustrating a protective cover of the drive mechanism unit according to the embodiment. FIG. 18A is a side cross-sectional view illustrating a protective lid driving unit of the driving mechanism unit according to the embodiment. FIG. 18B is a side cross-sectional view illustrating a protection lid driving unit of the driving mechanism unit according to the embodiment. FIG. 18C is a side cross-sectional view illustrating a protection lid driving unit of the driving mechanism unit according to the embodiment. FIG. 18D is a side cross-sectional view illustrating a protection lid driving unit of the driving mechanism unit according to the embodiment. FIG. 19A is a perspective view illustrating the operation of the protective lid and the protective lid slider of the drive mechanism unit according to the embodiment. FIG. 19B is a perspective view illustrating the operation of the protective lid and the protective lid slider of the drive mechanism unit according to the embodiment. FIG. 19C is a perspective view illustrating the operation of the protective lid and the protective lid slider of the drive mechanism unit according to the embodiment. FIG. 20A is a plan view illustrating a protective cover of the drive mechanism unit according to the embodiment. FIG. 20B is a plan view illustrating a protective cover of the drive mechanism unit according to the embodiment. FIG. 20C is a partially enlarged view illustrating a protective cover of the drive mechanism unit according to the embodiment.

  The protection lid drive unit 7 opens and closes a protection lid 72 that is disposed above and below the combiner unit 110 in the retracted state so as to be able to move forward and backward. As shown in FIG. 5, the protective lid driving section 7 includes a protective lid slider 71, a protective lid 72, and a pair of protective lid guides 73R and 73L.

  The protective lid slider 71 linearly moves in the deployment and storage direction in conjunction with the rotational movement of the drive gear 4. The protective lid slider 71 includes a main body 711 formed by bending a plate material, a guide hole 712R through which the shaft 641R of the slider guide 64 is inserted, a guide hole 712L through which the shaft 641L is inserted, and a gear cam drive. A shaft 713 and a protective cover drive shaft 714 are provided. The shaft 641R is slidably inserted into the guide hole 712R. The shaft 641L is slidably inserted into the guide hole 712L. Thereby, the movement direction of the protective lid slider 71 is restricted to the unfolded and stored direction. The gear cam drive shaft 713 is arranged along a direction parallel to the rotation shaft 4d of the drive gear 4. The gear cam drive shaft 713 is engaged with the protective cover drive cam 4c of the drive gear 4. The gear cam drive shaft 713 transmits the rotational movement of the drive gear 4 and causes the protective lid slider 71 to move linearly. The protective cover drive shaft 714 is disposed along a direction orthogonal to the gear cam drive shaft 713 and is disposed along the horizontal direction of the mechanical chassis 2. The protective cover drive shaft 714 is engaged with the protective cover cam 723 of the protective cover 72. The protective lid drive shaft 714 transmits the linear motion of the protective lid slider 71 and drives the protective lid 72.

  The protective lid 72 is disposed above and below the combiner unit 110 in a stored state so as to be able to move forward and backward. The protection lid 72 is formed of a plate-like material. The protective lid 72 moves forward and backward to open and close. The state where the protective lid 72 is positioned forward is a closed state, and the state which is positioned rearward is an open state. The operating range of the opening / closing operation of the protective cover 72 does not greatly protrude from the front-back dimension of the driving mechanism unit 1. The protective lid 72 includes a protective lid guide rib 722R, a protective lid guide rib 722L formed along the opening / closing operation direction, and an inclined linear protective lid cam 723. The protective lid guide rib 722R is inserted into the protective lid guide 73R. The protective lid guide rib 722L is inserted into the protective lid guide 73L. The protective lid cam 723 is formed along the opening / closing operation direction. The protective cover cam 723 is engaged with the protective cover drive shaft 714 of the protective cover slider 71.

  The protective cover 72 is fixed to the mechanical chassis 2 with a torsion coil spring 724R and a torsion coil spring 724L. More specifically, the torsion coil spring 724R and the torsion coil spring 724L have one end fixed to the protective cover 72 and the other end fixed to the mechanical chassis 2. The torsion coil spring 724R and the torsion coil spring 724L generate a force that presses the protection lid 72 in the opening direction and the closing direction when the protection lid 72 is in the open state and the closed state, respectively, thereby suppressing rattling or the like due to vibration.

  The protective lid guide 73R and the protective lid guide 73L guide the protective lid 72 to slide along the opening / closing operation direction. The protective lid guide 73R and the protective lid guide 73L are symmetrically arranged on the upper side of the mechanical chassis 2.

  In the protective lid driving section 7 having such a configuration, the protective lid 72 opens and closes when the gear cam drive shaft 713 is engaged with the protective lid opening / closing operation area 4c1 of the protective lid driving cam 4c of the drive gear 4. More specifically, as shown in FIGS. 19A to 19C, when the drive gear 4 rotates, the protective cover slider 71 linearly moves in the unfolded and stored direction by the protective cover drive cam 4c. As shown in FIGS. 18A to 18D, the linear movement of the protective lid slider 71 causes the protective lid drive shaft 714 to move within the protective lid cam 723, and the protective lid 72 operates in the opening / closing operation direction to open and close. It changes to the closed state. The protective lid 72 changes from a closed state to an open state when the protective lid slider 71 moves upward. The protective lid 72 changes from the open state to the closed state when the protective lid slider 71 moves down.

  When the gear cam drive shaft 713 is engaged with the protection lid non-operation area 4c2 of the drive gear 4, the protection lid driving unit 7 does not operate while the protection lid 72 is open. When the protective cover 72 is in the open state, the deploying and storing operation and the angle adjusting operation of the combiner unit 110 are performed.

  Next, the operation and operation of the driving mechanism unit 1 configured as described above will be described.

  First, a case where the drive mechanism unit 1 operates the combiner unit 110 from the stored state to the deployed state will be described.

  When the control circuit 130 detects an operation to open the combiner unit 110 in the stored state, the gear unit 3 is driven, and the drive gear 4 is rotated in a predetermined direction. When the drive gear 4 rotates, the deploying and storing drive shaft 4a relatively moves while meshing with the first cam groove 511 of the combiner drive cam plate 51.

  In a state in which the extended storage drive shaft 4a of the drive gear 4 is engaged with the arc-shaped cam groove 511a of the combiner drive cam plate 51, the arc-shaped cam groove 511a has the same diameter as the rotating radius of the extended storage drive shaft 4a. The drive cam plate 51 does not operate and stops. Therefore, the combiner unit 110 does not operate in the stored state. At this time, the angle adjusting unit drive shaft 4b is engaged with the arc-shaped cam groove 613a of the slider 61. Since the arc-shaped cam groove 613a has the same diameter as the rotation radius of the angle adjustment unit drive shaft 4b, the slider 61 does not operate and stops. Therefore, the combiner unit 110 does not operate. At this time, the gear cam drive shaft 713 of the protection lid slider 71 is engaged with the protection lid opening / closing operation area 4c1. For this reason, the rotational movement of the drive gear 4 is transmitted, and the protective lid slider 71 linearly moves in the deployment and storage direction. Since the protective cover drive shaft 714 is engaged with the protective cover cam 723 of the protective cover 72, the protective cover 72 operates in the opening / closing operation direction and changes from the closed state to the open state. In other words, the protection lid 72 changes from the closed state to the open state in conjunction with the upward movement of the protection lid slider 71.

  Then, when the gear cam drive shaft 713 is engaged with the protection lid non-operation area 4c2, the protection lid slider 71 stops the linear movement, and the protection lid 72 stops operating in the open state.

  When the unfolded and stored drive shaft 4a of the drive gear 4 is brought into a state of meshing with the linear cam groove 511b of the combiner drive cam plate 51, the rotational movement of the drive gear 4 is transmitted, and the combiner drive cam plate 51 is moved to the cam plate guide 52R. Along the shaft 521R of the cam plate guide 52L and the shaft 521L of the cam plate guide 52L. Since the second cam groove 512R and the drive shaft 531R of the drive arm 53R are meshed, and the second cam groove 512L and the drive shaft 531L of the drive arm 53L are meshed, the drive arm 53R and the drive arm 53L are synchronously symmetrical. Rotate. Then, the combiner arm 54R connected to the drive arm 53R and the combiner arm 54L connected to the drive arm 53L rotate synchronously and symmetrically. The combiner unit 110 connected to the combiner arm 54R and the combiner arm 54L operates from the stowed state to the deployed state. The combiner unit 110 operates while keeping its posture regulated by the rails 55R and 55L and the combiner guide groove 514.

  Then, when the deployed storage drive shaft 4a of the drive gear 4 is brought into a state of being engaged with the upper arc-shaped cam groove portion 511c of the combiner drive cam plate 51, the combiner drive cam plate 51 stops the linear motion, and the combiner unit 110 is placed in the deployed state. Stop operation. At this time, the rotating shaft roller 115R and the rotating shaft roller 115L of the combiner 111 hit the upper ends of the rails 55R and 55L and stop. At this time, the drive shaft 4b of the angle adjustment unit of the drive gear 4 is engaged with the linear cam groove 613b. For this reason, the rotational movement of the drive gear 4 is transmitted, and the slider 61 linearly moves along the deployment and storage direction. Since the lever drive shaft 615R of the slider 61 is engaged with the cam groove 62aR of the rotation shaft fixing lever 62R, and the lever drive shaft 615L is engaged with the cam groove 62aL of the rotation shaft fixing lever 62L, the rotation shaft fixing lever 62R and the rotation shaft fixing lever are engaged. 62L synchronously rotates symmetrically. Then, the rotating shaft fixing lever 62R and the rotating shaft fixing lever 62L operate in a direction to enter below the rotating shaft rollers 115R and 115L of the combiner unit 110 in the deployed state. Thus, the rotating shaft roller 115R and the rotating shaft roller 115L are sandwiched between the upper end of the rail 55R and the upper end of the rail 55L. In the combiner unit 110, a rotation shaft 114R and a rotation shaft 114L are fixed.

  Then, the linear movement of the angle adjustment cam drive shaft 616 of the slider 61 is transmitted, and the angle adjustment cam 63 rotates and engages with the angle adjustment cam groove 63b of the angle adjustment cam 63, thereby driving the angle adjustment unit of the combiner holder 112. The shaft 118 moves. Thus, the angle of the combiner unit 110 changes about the rotation axis 114R and the rotation axis 114L. In the present embodiment, the combiner unit 110 operates in a direction in which the upper side of the combiner 111 approaches the windshield S side.

  More specifically, as shown in FIGS. 2 and 3, the angle of the combiner 111 is adjusted according to a viewer such as a driver. More specifically, the combiner 111 is displayed so that the virtual image K is displayed at a desired position where the virtual image K is easy to see in accordance with the eye position (eye point) P1, the eye position P2, and the eye position P3 due to a difference in the sitting height of the viewer. The angle is adjusted.

  As described above, in conjunction with the rotational movement of the drive gear 4, the opening / closing operation of the protective cover 72, the expanding / retracting operation of the combiner unit 110, the fixing operation of the rotating shaft 114R and the rotating shaft 114L, and the angle adjusting operation are sequentially performed.

  Therefore, as shown in FIG. 21, the control circuit 130 determines the operating states of the unfolding and storing operation, the fixing operation of the rotating shaft 114R and the rotating shaft 114L, and the angle adjusting operation based on the rotation angle of the drive gear 4. . FIG. 21 is a diagram illustrating an example of an output of the position sensor of the drive mechanism unit according to the embodiment. Thus, by detecting the output of the position sensor 3d, the control circuit 130 detects the operation state of the drive mechanism unit 1. In the present embodiment, the rotation angle of the drive gear 4 while the combiner unit 110 is changed from the stored state to the expanded state and the combiner 111 is adjusted to the maximum movable angle is about 150 degrees.

  Next, a case where the drive mechanism unit 1 operates the combiner unit 110 from the deployed state to the stored state will be described.

  When the control circuit 130 detects an operation of putting the combiner unit 110 in the deployed state into the retracted state, the gear unit 3 is driven, and the drive gear 4 is rotated in the opposite direction.

  The deployed storage drive shaft 4a of the drive gear 4 is engaged with the upper arcuate cam groove portion 511c of the combiner drive cam plate 51, and the angle adjustment unit drive shaft 4b of the drive gear 4 is engaged with the linear cam groove portion 613b. For this reason, the rotational movement of the drive gear 4 is transmitted, and the slider 61 linearly moves along the deployment and storage direction. The rotating shaft fixing lever 62R and the rotating shaft fixing lever 62L rotate symmetrically in the left-right direction, and the rotating shaft fixing lever 62R and the rotating shaft fixing lever 62L rotate the rotating shaft roller 115R and the rotation of the combiner unit 110 in the expanded state. The shaft roller 115L operates in a direction away from the lower side. As a result, in the combiner unit 110, the fixed rotation shafts 114R and 114L are released.

  When the unfolded and stored drive shaft 4a of the drive gear 4 is engaged with the linear cam groove 511b of the combiner drive cam plate 51, the rotational motion of the drive gear 4 is transmitted, and the combiner drive cam plate 51 descends in the unfolded and stored direction. Make a linear motion. Then, the drive arm 53R and the drive arm 53L rotate in the left-right direction in synchronization with each other, so that the combiner arm 54R connected to the drive arm 53R and the combiner arm 54L connected to the drive arm 53L are left-right symmetrical in synchronization. Rotate. The combiner unit 110 connected to the combiner arm 54R and the combiner arm 54L operates from the deployed state to the retracted state. The combiner unit 110 operates while keeping its posture regulated by the rails 55R and 55L and the combiner guide groove 514.

  Then, when the deployed storage drive shaft 4a of the drive gear 4 is engaged with the arc-shaped cam groove portion 511a of the combiner drive cam plate 51, the combiner drive cam plate 51 stops without operating. Therefore, the combiner unit 110 stops operating in the stored state. At this time, since the angle adjusting unit drive shaft 4b is engaged with the arc-shaped cam groove 613a of the slider 61, the slider 61 does not operate and stops. Therefore, the combiner unit 110 does not operate. At this time, the gear cam drive shaft 713 of the protection lid slider 71 is engaged with the protection lid opening / closing operation area 4c1. For this reason, the rotational movement of the drive gear 4 is transmitted, and the protective lid slider 71 linearly moves in the deployment and storage direction. Thereby, the protective lid 72 operates in the opening / closing operation direction and changes from the open state to the closed state.

  Then, when the gear cam drive shaft 713 reaches the end of the protective lid opening / closing operation area 4c1, the protective lid slider 71 stops the linear motion, and the protective lid 72 stops operating in the closed state.

  As described above, in the present embodiment, the drive gear 4 has the rotation axis 4d along the direction orthogonal to the rotation axes 114R and 114L of the combiner unit 110. The drive gear 4, the combiner driving cam plate 51, the slider 61, and the protective lid slider 71 are arranged on a plane parallel to a surface on which the combiner unit 110 is deployed and stored. The rotational movement of the drive gear 4 is transmitted, and the combiner drive cam plate 51 is moved in the deploying and storing direction by the deploying and storing drive unit 5, so that the combiner unit 110 performs the expanding and storing operation. The rotational movement of the drive gear 4 is transmitted, and the slider 61 is moved by the angle adjustment drive unit 6 in the unfolded and stored direction, so that the rotation shaft 114R and the rotation shaft 114L are fixed and the angle is adjusted. The rotational movement of the drive gear 4 is transmitted, and the protective cover slider 71 is moved by the protective cover driving unit 7 in the developing and storing direction, so that the protective cover 72 is opened and closed. This embodiment can be downsized by such a configuration.

  In this embodiment, the combiner drive cam plate 51, the drive arm 53R and the combiner arm 54R, and the drive arm 53L and the combiner arm 54L are arranged so as to fit between the rotation shafts 114R and 114L of the combiner holder 112. ing. Therefore, in the present embodiment, the size of the drive mechanism unit 1 in the left-right direction can be reduced.

  In this embodiment, the link arm having the drive arm 53R and the combiner arm 54R, the drive arm 53L and the combiner arm 54L expands the operation range of the combiner unit 110 with respect to the operation range of the combiner drive cam plate 51, and increases the operation speed. Can be increased. According to the present embodiment, the combiner unit 110 can be changed from the stored state to the expanded state in about three seconds. As described above, in the present embodiment, it is possible to suppress the dimension of the drive mechanism unit 1 in the height direction and increase the operation speed.

  In the present embodiment, the linear movement of the protection lid slider 71 that moves linearly along the mechanical chassis 2 is transmitted, and the protection lid 72 opens and closes. In addition, since the combiner unit 110 linearly moves in the unfolding and storing direction, the protective cover 72 may be moved in the front-rear direction by a distance about the thickness of the combiner unit 110 for opening and closing operations. For this reason, the operation range of the opening / closing operation of the protective cover 72 can be set to a range that does not greatly protrude from the dimension of the driving mechanism unit 1 in the front-back direction. Therefore, in the present embodiment, the size of the driving mechanism unit 1 in the front-rear direction can be reduced.

  In the present embodiment, a combiner guide groove 514 for the left and right regulating guide portions 112a of the combiner holder 112 is provided on the combiner drive cam plate 51 that moves linearly in the deployment and storage direction together with the combiner unit 110. For this reason, in the present embodiment, the posture can be regulated by covering the operation range of the combiner unit 110 with the combiner guide groove 514 shorter than the operation range of the combiner unit 110 in the deployment and storage direction. This embodiment can be downsized by such a configuration.

  In the present embodiment, the opening and closing operation of the protective lid 72 and the deployment and storage operation of the combiner unit 110 are performed in order. Therefore, there is no need to provide an interval for avoiding interference between the protective lid 72 and the combiner unit 110. Therefore, in the present embodiment, the drive mechanism unit 1 can be downsized.

  As described above, in the present embodiment, the mechanism for performing the opening / closing operation of the protective cover 72 of the HUD device 100, the expanding / retracting operation of the combiner unit 110, the fixing operation of the rotating shaft 114R and the rotating shaft 114L, and the angle adjusting operation are provided by the driving mechanism unit 1. As a unit, the size can be reduced. Thereby, the present embodiment can support various layouts.

  In the present embodiment, in the unfolded state of the combiner unit 110, the rotating shaft fixing lever 62R and the rotating shaft fixing lever 62L enter the lower side of the rotating shaft roller 115R and the rotating shaft roller 115L of the combiner unit 110, and the upper end of the rail 55R and The rotating shaft roller 115R and the rotating shaft roller 115L are sandwiched between the upper ends of the rails 55L. As a result, the combiner unit 110 is fixed. For this reason, in the present embodiment, even if an overload is applied from above the combiner 111 due to unexpected handling or the like in the deployed state of the combiner unit 110, it is possible to suppress damage to components inside the drive mechanism unit 1. be able to.

  In the present embodiment, the combiner unit 110 operates from the stored state to the expanded state in a state in which the combiner unit 110 is held by the rails 55R and 55L and the combiner guide groove 514 and keeps its posture. Furthermore, in the present embodiment, the guide roller 117R and the guide roller 117L are pressed by the leaf spring 119 against the front side of the second rail 552R of the rail 55R and the second rail 552L of the rail 55L. As a result, the combiner unit 110 can operate while maintaining the posture when operating in the deployment and storage direction. Therefore, in the present embodiment, even if the attitude of the HUD device 100 changes, the deploying and storing operation of the combiner unit 110 can be performed stably and smoothly. For example, in a case where the combiner unit 110 is deployed and stored in a state where the vehicle V is parked on a steeply inclined surface, the guide roller 117R and the guide roller 117L, and the second rail 552R and the rail 55R of the rail 55R. Even if there is a gap between the 55L and the second rail 552L, the swing of the combiner unit 110 can be suppressed and a stable and smooth operation can be performed.

  In the present embodiment, the torsion coil spring 724R and the torsion coil spring 724L generate a force for pressing the protection lid 72 in the opening direction and the closing direction regardless of whether the protection lid 72 is in the open state or the closed state. Etc. can be suppressed.

  In the above, the combiner unit 110 according to the present invention has been described, but may be implemented in various different forms other than the above-described embodiment. In the HUD device 100 described above, the drive mechanism unit 1 and the combiner unit 110 have been described as being unitized. However, the combiner unit 110 may be integrated with the drive mechanism unit 1. Further, the combiner unit 110 described in the present embodiment is an example, and a combiner having another configuration may be used as long as the combiner unit 110 has a configuration that can be assembled to the drive mechanism unit 1.

  The combiner unit 110 and the deployment drive unit 5 are arranged on the surface of the mechanical chassis 2 on the windshield S side, and the gear unit 3, the drive gear 4, the angle adjustment drive unit 6, and the protective cover drive are provided on the surface of the mechanical chassis 2 on the driver's seat side. Although the structure in which the part 7 is arranged is adopted, the present invention is not limited to this structure. For example, the gear unit 3, the drive gear 4, the angle adjusting drive unit 6, and the protective lid drive unit 7 are arranged on the surface of the mechanical chassis 2 on the windshield S side, and a combiner is provided on the rear surface of the mechanical chassis 2 on the driver's seat side. The unit 110 and the deployment drive unit 5 may be arranged.

  The guide roller 117R and the guide roller 117L are pressed by the leaf spring 119 against the front side of the second rail 552R of the rail 55R and the second rail 552L of the rail 55L, but the present invention is not limited to this configuration. . For example, a configuration in which a leaf spring is pressed against the rear side of the second rail 552R and the second rail 552L may be employed. In this case, when adjusting the angle of the combiner unit 110, the upper part of the combiner 111 may be operated in a direction approaching the driver's seat side.

DESCRIPTION OF SYMBOLS 1 Drive mechanism unit 2 Mechanical chassis 3 Gear unit 3d Position sensor (sensor)
Reference Signs List 4 drive gear 4a deployment storage drive shaft 4b angle adjustment unit drive shaft 4c1 protective lid opening / closing operation area 4c protective lid drive cam 4c2 protective lid non-operation area 4d rotary shaft 5 deployment storage drive unit 51 combiner drive cam plate 511 first cam groove ( Cam groove)
511a Arc-shaped cam groove (first arc-shaped cam groove)
511b Straight cam groove 511c Upper circular cam groove (second circular cam groove)
52R Cam plate guide 52L Cam plate guide 53R Drive arm 53L Drive arm 54R Combiner arm 54L Combiner arm 55R Rail 55L Rail 6 Angle adjustment drive unit 61 Slider (rotation axis fixed / angle adjustment slider)
613 cam groove (angle adjustment cam groove)
62R Rotating shaft fixing lever 62L Rotating shaft fixing lever 63 Angle adjusting cam 64 Slider guide 7 Protective lid drive 71 Protective lid slider 713 Gear cam drive shaft 72 Protective lid 73R Protective lid guide 73L Protective lid guide 100 Head-up display device (HUD device)
110 Combiner Unit 111 Combiner 112 Combiner Holder 112a Left / Right Control Guide Unit 120 Display Video Generation Unit 130 Control Circuit 140 Housing

Claims (7)

A deployment storage drive unit that moves the combiner between a development position exposed from the housing and a storage position stored in the housing,
With the combiner positioned in the deployed position, an angle adjustment drive that adjusts the angle of the combiner,
In a state where the combiner is positioned at the storage position, a protective lid drive unit that opens and closes a protective lid that is arranged to be able to advance and retreat above the combiner,
A gear unit that supplies power for driving the deployment storage drive unit, the angle adjustment drive unit, and the protection lid drive unit,
A drive that has a rotating shaft disposed along a direction parallel to the front-rear direction of the vehicle, is rotated by an output of the gear unit, and transmits power to the deployment storage drive unit, the angle adjustment drive unit, and the protection lid drive unit. With gear and
The deployment storage drive unit receives power from the drive gear, and moves the combiner along a plane perpendicular to the rotation axis of the drive gear,
The angle adjustment drive unit receives power from the drive gear to adjust the angle of the combiner,
The drive mechanism unit, wherein the protection lid drive section receives power from the drive gear and opens and closes the protection lid. The drive gear has a deployed storage drive shaft,
The deployment storage drive unit has a combiner drive cam plate that is disposed along a plane perpendicular to the rotation axis of the drive gear and has a cam groove that meshes with the development storage drive shaft,
The cam groove includes a first arc-shaped cam groove that is an operation range in which the protective lid driving unit operates, a linear cam groove that is an operation range in which the deployment storage driving unit operates, and an operation of the angle adjustment driving unit. A second arc-shaped cam groove portion that is an operation range to
The first arcuate cam groove, the straight cam groove, and the second arcuate cam groove are formed smoothly and continuously,
In a state in which the deployment storage drive shaft is engaged with the first arc-shaped cam groove, the protection lid driving section operates, and the protection lid is opened and closed,
In a state in which the deployment storage drive shaft is engaged with the linear cam groove, the combiner drive cam plate moves along a plane perpendicular to the rotation axis of the drive gear, and the combiner is moved,
2. The drive mechanism unit according to claim 1, wherein the angle adjustment drive unit operates while the deployment storage drive shaft is engaged with the second arc-shaped cam groove to adjust the angle of the combiner. 3. The drive gear has an angle adjustment unit drive shaft,
The angle adjustment drive section includes a rotation axis fixed / angle adjustment slider that is disposed along a plane perpendicular to the rotation axis of the drive gear and has an angle adjustment cam groove that meshes with the angle adjustment section drive shaft.
In a state where the deployment storage drive shaft is engaged with the second arc-shaped cam groove, the rotation shaft fixing / angle adjustment slider moves along a plane perpendicular to the rotation axis of the drive gear, and the angle of the combiner is reduced. The drive mechanism unit according to claim 2, which is adjusted. The drive gear has a protective lid drive cam,
The protective lid drive section is provided along a plane perpendicular to the rotation axis of the drive gear, and has a protective lid slider having a gear cam drive shaft that meshes with the protective lid drive cam,
The protection cover slider moves along a plane perpendicular to the rotation axis of the drive gear in a state where the deployment storage drive shaft is engaged with the first arc-shaped cam groove, and the protection cover is opened and closed. 4. The driving mechanism unit according to 2 or 3.   The drive mechanism unit according to claim 1, further comprising a sensor that detects a rotation angle of the drive gear. A display video generator,
A control circuit that controls the deployment storage drive unit, the angle adjustment drive unit, the protective lid drive unit, the gear unit, and the display image generation unit,
6. The housing according to claim 1, further comprising: a housing that houses the deployment storage drive unit, the angle adjustment drive unit, the protection lid drive unit, the gear unit, the drive gear, the display image generation unit, and the control circuit. 7. The drive mechanism unit according to any one of the preceding claims. A combiner unit,
A head-up display device comprising: the drive mechanism unit according to claim 1.

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