WO2014185252A1

WO2014185252A1 - Vehicular display device

Info

Publication number: WO2014185252A1
Application number: PCT/JP2014/061677
Authority: WO
Inventors: 博文三上
Original assignee: 矢崎総業株式会社
Priority date: 2013-05-13
Filing date: 2014-04-25
Publication date: 2014-11-20
Also published as: JP2014222265A; DE112014002386B4; JP6112965B2; DE112014002386T5

Abstract

This HUD device (1) has the following: a stowing case (6); an illumination device (2); a combiner (3); a combiner-moving mechanism (33) that moves said combiner (3) between a stowed position in which the combiner (3) is stowed inside the stowing case so as to cover the top of the illumination device (2) and a deployed position in which the combiner (3) protrudes from the stowing case (6) through an opening (62a); a driving motor (32) that transmits mechanical power to the combiner-moving mechanism (33) so as to move the combiner (3); a light shield (5) that blocks unneeded light; and a light-shield-moving mechanism (50) that moves said light shield (5) between a retracted position that is positioned so as to correspond to the stowed position of the combiner (3) and a normal position that is positioned so as to correspond to the deployed position of the combiner (3). The light-shield-moving mechanism (50), which is connected to the combiner-moving mechanism (33) such that mechanical power can be transmitted from said combiner-moving mechanism (33), moves the light shield (5) in conjunction with the movements of the combiner (3). This makes it possible to set the light shield (5) appropriately as the combiner (3) is deployed.

Description

Vehicle display device

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 combiner is accommodated in the instrument panel, and can be moved between the accommodated position and the deployed position that is visible to the user. As a method of moving the combiner, it is considered that a rotation shaft is provided at the lower end of the combiner, the combiner is tilted around the rotation shaft, and the combiner is moved up and down along the vertical direction.

For example, Patent Document 1 describes providing a light shielding plate for shielding unnecessary light in order to prevent the inside of the dashboard from being visually recognized when the combiner is developed. .

JP 2002-331854 A

In the former method of moving the combiner, a development space corresponding to the size of the combiner is required. On the other hand, the method of moving the combiner described in the latter does not require a large development space, but there is a problem that it is difficult to set the light shielding plate.

The present invention has been made in view of such circumstances, and an object of the present invention is to provide a vehicle display device capable of appropriately setting a light shielding plate.

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 first moving mechanism for moving the reflecting plate between a reflecting plate, a housing position accommodated in the housing case so as to cover the irradiation device, and a deployed position protruding from the housing case through the opening; A driving motor that transmits power to one moving mechanism to move the reflecting plate, a shading plate that blocks unnecessary light, a retracted position that is positioned corresponding to the accommodation position of the reflecting plate, and development of the reflecting plate There is provided a vehicle display device having a second moving mechanism for moving a light shielding plate between a normal position positioned corresponding to the position. Here, the second moving mechanism is connected to the first moving mechanism so that power can be transmitted from the first moving mechanism, and moves the light shielding plate in conjunction with the moving operation of the reflecting plate.

Here, in the present invention, the reflecting plate moves up and down while tilting from the housing position to the deployed position, and the light shielding plate is present so as to overlap the reflecting plate at the retracted position, and is normal from the retracted position so as to face the reflecting plate. It is preferable to tilt to a position.

According to the present invention, by transmitting power from the first moving mechanism to the second moving mechanism, the light shielding plate is moved between the retracted position and the normal position in conjunction with the deploying and accommodating operation of the reflecting plate. be able to. Thereby, a light-shielding plate can be set appropriately. Further, since the light shielding plate is set in the moving space of the reflecting plate, a compact configuration is sufficient, and it can be realized at low cost by sharing the moving mechanism.

FIG. 1 is a perspective view showing the interior of a vehicle equipped with a head-up display device according to this embodiment. FIG. 2 is a perspective view schematically showing the appearance of the head-up display device shown in FIG. FIG. 3 is a front view schematically showing a combiner driving unit for operating the combiner. FIG. 4 is a perspective view schematically showing the combiner drive unit. FIG. 5 is an explanatory view schematically showing a main part of the combiner drive unit. FIG. 6 is an explanatory diagram schematically showing a main part of the combiner drive unit. FIG. 7 is an explanatory diagram showing the deploying operation of the combiner. FIG. 8 is an explanatory diagram showing the unfolding operation of the combiner. FIG. 9 is an explanatory diagram illustrating the operation of deploying the combiner.

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 to be able to move the combiner 3 between the housed position and the deployed position, and the combiner 3 can be taken in and out of the upper portion of the instrument panel 200 through this operation.

The irradiation device 2 is a device that irradiates the 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. A pair of

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 driving 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 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 as a first moving mechanism. 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. Further, the combiner moving mechanism 33 is connected to a light shielding plate moving mechanism 50 described later so that power can be transmitted. That is, the drive motor 32 also functions as a drive source that transmits power to the light shielding plate moving mechanism 50 to perform the movement operation of the light shielding plate 5.

The combiner moving mechanism 33 moves the combiner 3 between the storage position and the deployment 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. Here, the upper side of the irradiation device 2 is, for example, the direction in which the opening 62a of the housing case 6 is located, and the vertical direction typically corresponds to a direction substantially along the vertical direction.

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 pivotally 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 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.

Further, 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 first support shaft 44 rotatably connects the lower end portion of the combiner holder 31 and the arm portion of the rotating arm 34 to constitute 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 side 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 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 including 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 41b, the link mechanism is Thus, the extended state is reached, and the combiner 3 is positioned at the unfolded position. On the other hand, when the first support shaft 44 is positioned at the lowermost position of the first guide groove 41a and the second support shaft 45 is positioned at the lowermost position of the second guide groove 41b, the link mechanism Becomes the most bent state, and thereby, the combiner 3 is positioned at the accommodation position.

Further, as one of the features of the present embodiment, the HUD device 1 includes a light shielding plate moving mechanism 50 as a second moving mechanism. 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 33, and transmits the power from the arm drive shaft 39 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 the 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 to the rack of the second guide groove 41b, and the pinion 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 The holder 31 tilts 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 41b. 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 3 that moves the combiner 3 between an accommodation position that is accommodated in the accommodation case so as to cover the irradiation device 2 and a deployed position that protrudes from the accommodation case 6 through the opening 62a. The moving mechanism 33, the drive motor 32 that transmits power to the combiner moving mechanism 33 to move the combiner 3, the light shielding plate 5 that blocks unnecessary light, and the retreat that is positioned corresponding to the accommodation position of the combiner 3. A light-shielding plate moving mechanism 50 that moves the light-shielding plate 5 between the position and a normal position positioned corresponding to the deployed position of the combiner 3. Here, the light shielding plate moving mechanism 50 is connected to the combiner moving mechanism 33 so that power can be transmitted from the combiner moving mechanism 33, and moves the light shielding plate 5 in conjunction with the moving operation of the combiner 3.

According to such a configuration, the HUD device 1 transmits the power from the combiner moving mechanism 33 to the light shielding plate moving mechanism 50, thereby moving the light shielding plate 5 between the retracted position and the normal position in conjunction with the deploying and storing operation of the combiner 3. Can be moved between. Thereby, the HUD apparatus 1 can set the light-shielding plate 5 appropriately. Moreover, since the light-shielding plate 5 is set in the moving space of the combiner 3, the HUD device 1 is sufficient in a compact configuration, and can be realized at low cost by sharing the moving mechanism.

Particularly, according to the present embodiment, the HUD device 1 can be moved in a small space as the combiner 3 moves up and down while tilting around the second support shaft 45. Further, the HUD device 1 accommodates the combiner 3 so as to cover the upper side of the irradiation device 2, and thus can save space in the vertical direction in the housing case 6. Thereby, the HUD device 1 can accommodate and deploy a large size combiner 3 in a space-saving manner.

Further, in the present embodiment, the combiner 3 moves while tilting from the storage position to the deployed position, and the light shielding plate 5 exists so as to overlap the combiner 3 at the retracted position, and from the retracted position so as to face the combiner 3. Tilt to normal position.

According to this configuration, the HUD device 1 can accommodate the light shielding plate 5 so as to overlap with the combiner 3, so that space saving in the vertical direction in the accommodation case 6 can be achieved.

As mentioned above, although the display apparatus for vehicles concerning this embodiment was demonstrated, this invention is not limited to this embodiment, A various change is possible in the range 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

Claims

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 first moving mechanism for moving the reflecting plate between a housing position accommodated in the housing case so as to cover the irradiation device and a deployed position protruding from the housing case through the opening;
A drive motor that transmits power to the first moving mechanism to move the reflecting plate;
A light shielding plate that shields unnecessary light,
A second moving mechanism that moves the light shielding plate between a retracted position that is positioned corresponding to the housing position of the reflecting plate and a normal position that is positioned corresponding to the deployed position of the reflecting plate; ,
The second moving mechanism is connected to the first moving mechanism so that power can be transmitted from the first moving mechanism, and moves the light shielding plate in conjunction with the moving operation of the reflecting plate. A display device for vehicles.
The reflector moves up and down while tilting from the accommodation position to the deployment position,
2. The vehicle according to claim 1, wherein the light shielding plate is present so as to overlap the reflecting plate at the retracted position, and tilts from the retracted position to the normal position so as to face the reflecting plate. Display device.