JP5997648B2 - Vehicle display device - Google Patents

Description

  The present invention relates to a vehicle display device.

  2. Description of the Related Art Conventionally, a display device for a vehicle that is attached to a vehicle instrument panel or the like and displays information such as vehicle information and navigation information is known. In recent years, a head that superimposes information with a scenery in front is visually recognized. Up-display devices have been proposed. This head-up display device includes an irradiation device that irradiates display light, and a combiner (reflecting plate) that reflects display light. The head-up display device is accommodated in the instrument panel, and the combiner can be moved between the accommodation position and a deployment position that is visible to the user (see, for example, Patent Documents 1 to 3). .

  For example, as a method of moving the combiner, it is conceivable to provide a rotating shaft at the lower end of the combiner and tilt the combiner about the rotating shaft. As another moving method, it is considered that the combiner is moved up and down along the vertical direction.

JP 2004-276648 A JP 2007-182132 A JP 2012-254707 A

  However, in the former moving method of the combiner, a development space corresponding to the turning range of the combiner is required. In the latter method of moving the combiner, a development space corresponding to the rotation range is not required, but a large space is required in the vertical direction of the combiner.

  This invention is made | formed in view of this situation, The objective is to provide the display apparatus for vehicles which can accommodate and expand a large sized reflector in space-saving.

  In order to solve such a problem, the present invention provides a housing case having an opening on the upper surface, an irradiation device that is housed in the housing case and emits display light, and reflects display light emitted from the irradiation device. A reflecting plate, a reflecting plate moving mechanism for moving the reflecting plate between an accommodating position accommodated in the accommodating case so as to cover the upper side of the irradiation device, and a deployed position protruding from the accommodating case through the opening, and the reflecting plate Provided is a vehicle display device having a drive motor that transmits power to a moving mechanism to move a reflecting plate. Here, the reflection plate moving mechanism is erected on the side of the reflection plate, the guide plate in which the first guide groove and the second guide groove are formed, and the reflection plate that holds the lower end portion of the reflection plate The holding member, the rotating arm that is rotatably supported by the guide plate, and that is rotated by the power from the drive motor, and the reflection plate holding member and the rotating arm are connected, and the first guide groove is connected. The first support shaft to be inserted and the second support shaft to be inserted into the second guide groove while being provided on the reflection plate holding member, and includes a reflection plate holding member and a rotating arm. By performing the bending operation or the extending operation of the link mechanism, the reflector is moved up and down between the deployed position and the storage position while being tilted about the second support shaft.

  In the present invention, the reflection plate holding member may be configured such that the first support shaft and the second support shaft are guided by the first guide groove and the second guide groove, respectively, and move relative to each other. It is preferable to guide the plate tilting and lifting operations.

  In the present invention, the image forming apparatus further includes a shutter that closes the opening of the housing case in a state where the reflecting plate is in the housing position, and the reflecting plate is disposed below the shutter that closes the opening. It is preferable.

  According to the present invention, the reflecting plate moves up and down while tilting around the second support shaft, so that the reflecting plate can be moved in a small space. Further, by accommodating the reflecting plate so as to cover the upper side of the irradiation device, it is possible to save space in the vertical direction in the housing case. Thereby, a large sized reflector can be accommodated and developed in a small space.

The perspective view which shows the interior of the vehicle provided with the head-up display apparatus which concerns on this embodiment The perspective view which shows typically the external appearance of the head-up display apparatus shown in FIG. Front view schematically showing a combiner drive unit for operating the combiner The perspective view which shows a combiner drive unit typically Explanatory drawing which shows the principal part of a combiner drive unit typically Explanatory drawing which shows the principal part of a combiner drive unit typically Explanatory drawing showing combiner unfolding operation Explanatory drawing showing combiner unfolding operation Explanatory drawing showing combiner unfolding operation

  FIG. 1 is a perspective view showing the interior of a vehicle equipped with a head-up display device 1 according to the present embodiment, and FIG. 2 is a perspective view schematically showing the appearance of the head-up display device 1 shown in FIG. is there. FIG. 3 is a front view schematically showing the combiner drive unit 30 for operating the combiner 3, and FIG. 4 is a perspective view schematically showing the combiner drive unit 30. The head-up display device 1 (hereinafter referred to as “HUD device 1”) is a vehicle display device that is arranged on an instrument panel 200 of a vehicle and displays vehicle information and navigation information. An opening 200a is provided in the front portion of the driver's seat of the instrument panel 200, and the HUD device 1 is disposed so that the upper portion thereof is exposed from the opening 200a.

  The HUD device 1 is mainly composed of an irradiation device 2, a combiner 3 that is a reflection plate, a light shielding plate 5, a housing case 6, and a shutter 7. The HUD device 1 is configured so that the combiner 3 can be moved between the storage position and the unfolded position, and the combiner 3 can be taken in and out of the instrument panel 200 through this operation.

  The irradiation device 2 is a device that irradiates display light L1 (see FIG. 1). For example, a liquid crystal display device can be used. In the present embodiment, the irradiation device 2 is disposed so as to face the rear of the vehicle, and the irradiated display light L1 is reflected to the front of the vehicle by a folding mirror (not shown), and the display is the reflected light. The combiner 3 is irradiated with light L1.

  The combiner 3 is a half mirror, for example, and is composed of a plate glass and a light semi-transmissive film such as tin or silver deposited on one surface of the plate glass. The combiner 3 has translucency, and is formed so that the driver can see the front of the vehicle through the combiner 3.

  The light shielding plate 5 is a plate-like member for shielding unnecessary light, and is disposed in the vicinity of the combiner 3. With the light shielding function, the light shielding plate 5 can suppress deterioration in appearance such that the inside of the combiner 3 can be visually recognized when the combiner 3 is deployed. The light-shielding plate 5 is provided with a rotating shaft 5a (see FIGS. 7 to 9) extending in the left-right direction of the combiner 3. The light-shielding plate 5 has left and right described later via the rotating shaft 5a. The guide plates 41 and 42 are rotatably supported.

  The housing case 6 is a case for housing the irradiation device 2, the combiner 3, the light shielding plate 5, the shutter 7, and the like. The storage case 6 includes a lower case 61 and an upper case 62, and is configured to be split vertically. The lower case 61 is formed in a box shape having an upper opening. The upper case 62 is formed in a box shape having an opening at the bottom, and is provided so as to close the opening of the lower case 61. On the upper surface of the upper case 62, an opening 62a for taking in and out the combiner 3 is formed.

  The shutter 7 is a member that opens or closes the opening 62 a on the upper surface of the upper case 62. The shutter 7 is configured to be movable between an open position for opening the opening 62a and a closed position for closing the opening 62a by the shutter drive unit 80. The shutter 7 exists in the closed position in a state where the combiner 3 exists in the accommodation position, and covers the upper part of the combiner 3 so as to overlap with the combiner 3 in the accommodation position.

  In the present embodiment, the HUD device 1 further includes a combiner drive unit 30 that operates the combiner 3 between the storage position and the deployed position. The combiner drive unit 30 includes a drive motor 32 and a combiner moving mechanism 33. Here, FIG. 5 and FIG. 6 are explanatory views schematically showing the main part of the combiner drive unit 30.

  The drive motor 32 is a drive source that transmits power to the combiner moving mechanism 33 to move the combiner 3. As the drive motor 32, a stepping motor or the like can be used. The combiner moving mechanism 33 is connected to a light shielding plate moving mechanism 50 described later so that power can be transmitted. The drive motor 32 transmits power to the light shielding plate moving mechanism 50 to move the light shielding plate 5. It also functions as a drive source.

  The combiner moving mechanism 33 moves the combiner 3 between the accommodation position and the deployed position. Here, the accommodation position is a position where the combiner 3 is accommodated in the accommodation case 6 so as to cover the irradiation device 2 (see FIG. 3), and the development position is the opening 62 a of the upper case 62. It is a position which protrudes from storage case 6 through.

  The combiner moving mechanism 33 includes a combiner holder 31, a rotating arm 34, a drive gear 35, a multistage gear 36, a first driven gear 37, a second driven gear 38, an arm drive shaft 39, and a pinion gear. 40, left and right guide plates 41, 42, a first support shaft 44, and a second support shaft 45.

  The combiner holder 31 is a member that holds the lower end portion of the combiner 3, and is provided with flat portions 31 a that face the left and right guide plates 41 and 42 on both the left and right sides thereof.

  The rotation arm 34 is fixed to a rotation shaft 43a that is rotatably supported by the auxiliary plate 43, and is configured to be rotatable about the rotation shaft 43a. The rotating arm 34 is connected to the combiner holder 31 via a first support shaft 44 to be described later to form a link mechanism, and moves the combiner holder 31 up and down and tilts through its own rotating operation. A groove 34 a for inserting the first support shaft 44 is formed on the distal end side of the arm portion of the rotating arm 34. Further, a rack is formed at a part of the base end portion of the turning arm 34, and the rack meshes with a pinion gear 40 described later.

  The drive gear 35 is a worm gear fixed to the output shaft of the drive motor 32. The drive gear 35 meshes with the multistage gear 36. The multi-stage gear 36 is configured by superimposing a large-diameter gear and a small-diameter gear on the same axis. Mesh with the following driven gear 37. The first driven gear 37 meshes with a second driven gear 38 fixed to the arm drive shaft 39. The arm drive shaft 39 extends in the left-right direction of the combiner 3 and is rotatably supported by left and right guide plates 41, 42. A pinion gear 40 is fixed to the arm drive shaft 39, and the pinion gear 40 meshes with a rack formed on the rotating arm 34.

  The left and right guide plates 41 and 42 are provided upright on the left and right sides of the combiner 3. These guide plates 41 and 42 support the arm drive shaft 39, and one guide plate 41 fixes the auxiliary plate 43. The auxiliary plate 43 is a part of the guide plate 41, and holds the drive motor 32, rotatably supports the multistage gear 36 and the first driven gear 37, and can rotate the rotation shaft 43a. Or support it.

  The guide plate 41 is formed with a first guide groove 41a and a second guide groove 41b. The first guide groove 41a guides the movement of the first support shaft 44 described later, and is formed to be inclined in the vertical direction. The second guide groove 41b guides the movement of the second support shaft 45 described later, and is formed to be inclined in the vertical direction. A rack is formed in the second guide groove 41b, and the inclined shape is set to a larger gradient than the first guide groove 41a.

  The 1st spindle 44 connects the lower end part of the combiner holder 31, and the arm part of the rotation arm 34 so that rotation is possible, and comprises a link mechanism. Specifically, the first support shaft 44 is disposed at the lower end portion of the combiner holder 31, and the distal end portion thereof is inserted into the groove portion 34 a of the rotating arm 34. The groove portion 34a has a predetermined length along the extending direction of the arm portion, and is configured such that the first support shaft 44 can slide within the range of the length. The first support shaft 44 is also inserted into the first guide groove 41a, and its movement range and movement locus are limited to the shape range of the first guide groove 41a.

  The second support shaft 45 is disposed at the upper end portion of the combiner holder 31. The tip end portion of the second support shaft 45 is inserted into the second guide groove 41b, and the movement range and movement locus thereof are limited to the shape range of the second guide groove 41b. Further, a pinion gear 46 is rotatably attached to an end portion of the second support shaft 45. The pinion gear 46 meshes with a rack formed in the second guide groove 41b and the second guide groove 41b. Slide along.

  In such a combiner moving mechanism 33, the moving operation of the combiner 3 is achieved by a link mechanism constituted by a combiner holder 31 and a rotating arm 34. Here, when the first support shaft 44 is positioned at the uppermost position of the first guide groove 41a and the second support shaft 45 is positioned at the uppermost position of the second guide groove 42b, the link mechanism is It will be in the most extended state, and, thereby, the combiner 3 will be positioned in a deployment position. On the other hand, when the first support shaft 44 is positioned at the lowest position of the first guide groove 41a and the second support shaft 45 is positioned at the lowest position of the second guide groove 42b, the link mechanism Will be in the most bent state, and the combiner 3 will be positioned in the accommodation position by this.

  In addition, as one of the features of the present embodiment, the HUD device 1 includes a light shielding plate moving mechanism 50. The light shielding plate moving mechanism 50 moves the light shielding plate 5 between the retracted position and the normal position. Here, the retracted position is a position positioned corresponding to the accommodation position of the combiner 3, and the normal position is a position positioned corresponding to the deployed position of the combiner 3. The light shielding plate moving mechanism 50 is connected to the combiner moving mechanism 33 so that power can be transmitted.

  The light shielding plate moving mechanism 50 includes a cam 51 and an engaging portion 52. The cam 51 is fixed to an arm drive shaft 39 that constitutes the combiner moving mechanism 50, and transmits power from the arm drive shaft 30 to the engaging portion 52. The cam 51 is, for example, a disc cam, and an engaging portion 52 is slidably contacted with the cam 51. The engaging portion 52 is provided on the surface of the light shielding plate 5 facing the cam 51, and swings according to the rotational motion of the cam 51, thereby tilting the light shielding plate 5 about the rotation shaft 5a.

  Hereinafter, the movement operation of the combiner 3 in the HUD device 1 according to the present embodiment will be described. Here, FIG. 7 to FIG. 9 are explanatory views showing the unfolding operation of the combiner 3. The unfolding operation of the combiner 3 is an operation for moving the combiner 3 in the accommodation position to the unfolding position.

  In a state where the combiner 3 is in the storage position (see FIG. 7), the link mechanism including the rotating arm 34 and the combiner holder 31 is bent. When the drive motor 32 is rotationally driven, the drive gear 35 is also rotated in synchronism, whereby the multistage gear 36, the first driven gear 37, and the second driven gear 38 are rotated. The rotation of the second driven gear 38 is transmitted to the arm drive shaft 39, whereby the pinion gear 40 and the cam 51 fixed to the arm drive shaft 39 are rotated.

  The rotation of the pinion gear 40 is transmitted to the rack of the rotating arm 34 meshing with the pinion gear 40, and the rotating arm 34 rotates about the rotating shaft 43a. As the turning arm 34 rotates, the combiner holder 31 connected to the tip of the arm portion via the first support shaft 44 also moves. Here, the rotating arm 34 rotates to lift the first support shaft 44 upward, and the first support shaft 44 moves obliquely upward while being guided by the first guide groove 41a (FIG. 8). reference). As the first support shaft 44 moves upward, the combiner holder 31 also rises relatively.

  Further, when the combiner holder 31 moves up, the second support shaft 45 is guided by the second guide groove 41b. Specifically, when the combiner holder 31 is raised, the pinion gear 46 is rolled on the rack of the second guide groove 41b, and the gear 46 and the second support shaft 45 are guided by the second guide groove 41b. Move diagonally upward. Here, the combiner holder 31 is rotatable about the second support shaft 45, and the first support shaft 44 operates to push out the lower end portion of the combiner holder 31, so that the combiner holder 31 31 tilts so as to rise up about the second support shaft 45.

  As described above, the combiner holder 31 is relatively raised while being tilted about the second support shaft 45 in accordance with the rotation of the rotation arm 34. Therefore, the combiner 3 supported by the combiner holder 31 also rises relatively while tilting. Then, as the combiner holder 31 is raised, the first support shaft 44 reaches the uppermost position of the first guide groove 41a, and the second support shaft 45 reaches the uppermost position of the second guide groove 42b. By this, the raise of the combiner holder 31 stops. As a result, the combiner 3 reaches the deployed position. Here, at the unfolded position of the combiner 3, the link mechanism including the rotating arm 34 and the combiner holder 31 is in the most extended state. Further, the inclination angle of the combiner 3 has changed to an angle that rises more than the inclination angle at the storage position (see FIG. 9).

  On the other hand, when the cam 51 fixed to the arm drive shaft 39 rotates, the engaging portion 52 that comes into contact with the cam 51 is pushed forward (to the left in the figure), so that the light shielding plate 5 is centered on the rotation shaft 5a. Tilt to. Through this tilting operation, the light shielding plate 5 moves from the retracted position to the normal position.

  On the other hand, the accommodating operation of the combiner 3 for moving the combiner 3 in the unfolded position to the accommodating position is performed according to a procedure reverse to the above-described procedure by rotating the drive motor 32 in the reverse direction. . As a result, the combiner 3 moves from the deployed position to the accommodation position, and at the same time, the light shielding plate 5 moves from the normal position to the retracted position.

  As described above, in the present embodiment, the HUD device 1 is irradiated from the housing case 6 having the opening 62a on the upper surface, the irradiation device 2 that is housed in the housing case 6 and emits display light, and the irradiation device 2. A combiner 3 that reflects display light, and a combiner that moves the combiner between an accommodation position accommodated in the accommodation case 6 so as to cover the irradiation device 2 and a deployed position protruding from the accommodation case 6 through the opening 62a. The moving mechanism 33 has a drive motor 32 that transmits power to the combiner moving mechanism 33 to move the combiner 3. Here, the combiner moving mechanism 33 holds the lower end portion of the combiner 3 and the guide plate 41 that is erected on the side of the combiner 3 and has the first guide groove 41 a and the second guide groove 42 a formed therein. The combiner holder 31, the turning arm 34 that is rotatably supported by the guide plate 41 and that is turned by the power from the drive motor 32, and the combiner holder 31 and the turning arm 34 are connected and the first guide is connected. It has the 1st spindle 44 inserted in the groove | channel 41a, and the 2nd spindle 45 provided in the combiner holder 31 and penetrated to the 2nd guide groove 41b. Then, the combiner moving mechanism 33 performs a bending operation or an extending operation of the link mechanism including the combiner holder 31 and the rotating arm 34, thereby tilting the combiner 3 around the second support shaft 45. It is raised and lowered between the accommodation positions.

  According to this configuration, the combiner 3 moves up and down while tilting around the second support shaft 45, so that the combiner 3 can be moved in a small space. Further, by storing the combiner 3 so as to cover the irradiation device 2, the space in the vertical direction in the storage case 6 can be saved. Thereby, the large size combiner 3 can be accommodated and deployed in a space-saving manner. Moreover, since there is no restriction | limiting in an expansion | deployment position, it is rich in visibility and can provide the HUD apparatus 1 with high design property.

  In the present embodiment, the first guide groove 41a is formed to be inclined in the vertical direction, and the second guide groove 41b is formed to be inclined in the vertical direction and is more than the first guide groove 41a. A large gradient is set. Then, the combiner holder 31 tilts the combiner 3 by the relative movement of the first support shaft 44 and the second support shaft 45 guided by the first guide groove and the second guide groove, respectively. And guides the lifting operation.

  According to such a configuration, the movement of the combiner holder 31 can be appropriately controlled. Thereby, the combiner 3 held by the combiner holder 31 can be relatively moved up and down while being tilted around the second support shaft 45.

  Moreover, in this embodiment, it has further the shutter 7 which closes the opening part 62a of the storage case 6 in the state in which the combiner 3 exists in a storage position. In this case, the combiner 3 is disposed so as to overlap the shutter 7 below the shutter 7 with the opening 62a closed.

  According to such a configuration, the combiner 3 can be accommodated so as to overlap with the shutter 7, and thus space saving in the vertical direction in the accommodation case 6 can be achieved.

  The vehicle display device according to this embodiment has been described above, but the present invention is not limited to this embodiment, and various modifications can be made within the scope of the invention.

DESCRIPTION OF SYMBOLS 1 HUD apparatus 2 Irradiation apparatus 3 Combiner 30 Combiner drive unit 31 Combiner holder 32 Drive motor 33 Combiner moving mechanism 34 Rotating arm 34a Groove part 35 Drive gear 36 Multistage gear 37 1st driven gear 38 2nd driven gear 39 Arm drive shaft 40 pinion gear 41 guide plate 41a first guide groove 41b second guide groove 42 guide plate 43 auxiliary plate 44 first support shaft 45 second support shaft 46 pinion gear 5 light shielding plate 5a rotating shaft 50 light shielding plate moving mechanism 51 Cam 52 Engagement part 6 Storage case 61 Lower case 62 Upper case 62a Opening part 7 Shutter 80 Shutter drive unit L1 Display light

Claims (3)

A storage case with an opening on the top surface;
An irradiation device that is housed in the housing case and emits display light; and
A reflecting plate that reflects display light emitted from the irradiation device;
A reflecting plate moving mechanism that moves the reflecting plate between a housing position that is housed in the housing case so as to cover the irradiation device and a deployment position that protrudes from the housing case through the opening;
A drive motor that transmits power to the reflecting plate moving mechanism to move the reflecting plate;
The reflector moving mechanism is
A guide plate that is erected on the side of the reflecting plate and in which a first guide groove and a second guide groove are formed;
A reflector holding member that holds the lower end of the reflector;
A pivot arm rotatably supported by the guide plate and rotated by power from the drive motor;
A first support shaft that connects the reflector holding member and the pivot arm and moves while being guided by the first guide groove;
A second support shaft that is provided on the reflection plate holding member and moves while being guided by the second guide groove;
By performing a bending operation or an extending operation of a link mechanism including the reflection plate holding member and the rotating arm, the deployment position and the storage position are set while the reflection plate is tilted about the second support shaft. The display apparatus for vehicles characterized by raising / lowering between.   The reflection plate holding member moves relative to the reflection plate by relatively moving the first support shaft and the second support shaft guided by the first guide groove and the second guide groove, respectively. The vehicle display device according to claim 1, wherein the tilting operation and the elevating operation are guided. A shutter that closes the opening of the housing case in a state in which the reflector is in the housing position;
The vehicular display device according to claim 1, wherein the reflector is disposed below the shutter that closes the opening so as to overlap the shutter.

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