JP3847865B2 - In-vehicle monitor device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an in-vehicle monitor device in which a display stored in, for example, a dashboard of a vehicle is projected to a position where it can be visually recognized in use, and in particular, a monitor in which a display storage portion is covered with a vehicle-side lid when the display is stored. Relates to the device.
[0002]
[Prior art]
As a vehicle-mounted monitor device embedded in a dashboard of a vehicle, for example, JP-A-8-9291, JP-A-64-6154, JP-A-7-291047, and JP-A-63-168141 are disclosed. Is disclosed. In these monitor devices, the display storage portion is covered with a cover member when the display is stored, and the cover is opened when the display protrudes.
[0003]
[Problems to be solved by the invention]
However, in many of the conventional devices described above, the lid member is integrated with the display, or the display driving mechanism and the lid member are connected, and the lid member is opened in synchronization with the drive of the display. . When the display and the lid member are integrated, it is necessary to change the shape and color of the portion corresponding to the lid in accordance with the vehicle on which the monitor device is manufactured. On the other hand, when the display drive mechanism and the lid member are connected, the number of man-hours when the vehicle is mounted increases. In some cases, the display is protruded after the lid is manually opened. In this case, the operation of the occupant increases when the display is used.
[0004]
An object of the present invention is to provide an in-vehicle monitor device that solves all of the above problems by configuring a display separate from a vehicle lid member so as to protrude while pushing the lid member open.
[0005]
[Means for Solving the Problems]
Referring to FIGS. 2 and 10 showing one embodiment, the present invention is a display that can be moved between a storage position stored in a storage portion of a vehicle and a use position protruding from the storage portion. 10 and driving means 31, 62, 80 for electrically driving the display 10 between the storage position and the use position, and the storage portion is covered by the vehicle-side lid member 1a when the display 10 is in the storage position. The present invention is applied to an on-vehicle monitor device configured as described above.
Then, the display 10 is separated from the lid member 1a, and when the display 10 moves from the storage position toward the use position, a part of the display 10 abuts on the lid member 1a and pushes the lid member 1a open. Furthermore, a cam mechanism 31 that changes the posture of the display 10 is provided in the driving means, and the display 10 that takes a recumbent posture at the retracted position gradually rises up and reaches the use position when tilted by a predetermined amount in the reverse direction through the upright posture. At the same time, the cam shape of the cam mechanism 31 is determined so that the display 10 changes its posture without moving the lid member 1a until it reaches the use position posture from the upright posture, thereby solving the above problems.
According to the second aspect of the present invention, a roller 12 is provided at a contact position of the display 10 with the lid member 1a, and the roller 12 rolls on the lid member 1a while pushing the lid member 1a open.
According to the invention of claim 3, at least a contact portion of the roller 12 with the lid member 1a is formed of rubber.
According to the invention of claim 4, the roller 12 is provided at the corner between the upper surface and the rear surface of the display 1.
According to the fifth aspect of the present invention, the display 10 is provided with a shaft support portion 14 (FIG. 20) for rotatably supporting the roller 12 from both ends, and the roller 12 is biased toward one shaft support portion 14 by the biasing means 15. It is a thing.
According to a sixth aspect of the present invention, the storage portion is provided in the dashboard of the vehicle, and the lid member 1a is provided on the upper portion of the dashboard so as to be openable and closable.
[0006]
In the section of the means for solving the above-described problem to explain the configuration of the present invention, the drawings of the embodiments are used for easy understanding of the present invention, but the present invention is thereby limited to the embodiments. It is not something.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the present invention will be described with reference to FIGS.
The in-vehicle monitor device according to the present embodiment is for displaying various types of information such as television broadcasts and navigation systems, and is embedded in the dashboard 1 (FIG. 1) of the vehicle, unlike the so-called 1DIN type. Is. The display is completely stored in the dashboard 1 when not in use, and protrudes to a visible position while opening the lid 1a of the dashboard 1 in use. FIG. 2 shows a state in which the display 10 is in the retracted position. At this time, the lid 1a is completely closed by a biasing force of a spring (not shown). When a predetermined operation is performed, the display 10 changes its position while moving in the order of FIG. 2 → FIG. 3 → FIG. 4 → FIG. 5 by the driving force of the motor, and finally reaches the use position shown in FIG.
[0008]
A configuration for realizing the operation of the display 10 will be described in detail below.
7 to 9 show a display driving mechanism, 20 is a housing for storing the display 10, 30 is a cam member arranged on the inner surface side of both side walls of the housing 20, and 40 is the inside of the housing 20 in the A direction. The slide base is movable in the (vehicle front) and B direction (vehicle rear). The casing 20 includes a bottom plate 21, left and right side plates 22, a rear plate 23, and a front plate 24. A rack member 51 is fixed to the left and right of the bottom plate 21, and a substantially U-shaped guard member is provided at the center. 52 is fixed. The rack member 51 is formed with a rack 51a extending in the A and B directions and a guide groove 51b, and the pinion 65 of the slide base 40 is engaged with the rack 51a. A spring hook 22a is formed on the inner surface of the both side plates 22 so that one end of a tension spring 91 for energizing the display described later is hooked.
[0009]
A cam groove 31 extending in the vehicle front-rear direction is formed on the inner surface of the cam member 30, and a rectilinear guide groove 32 is formed below the cam groove 31. Further, a pivotal support portion 33 that pivotally supports one end of a link member 80 to be described later is provided at the rear of the upper surface of the cam member 30.
[0010]
The slide base 40 includes a bottom plate 41, left and right side plates 42, a rear plate 43, and a front plate (not shown in FIGS. 7 to 9), and the side plate 42 is formed with an elongated hole 42 a in the vertical direction. Projections 41 a are formed at three locations on the front surface of the bottom surface of the bottom plate 41, while three grooves extending in the A and B directions are formed on the bottom plate 21 of the housing 20 by the rack member 51 and the guard member 52. 53 are formed, and the tips of the protrusions 41a are inserted into the grooves 53, respectively. The right-hand protruding portion 41a shown in the figure is an operating member that operates a position detection switch (not shown). This operating member 41a is pressed against the front plate 24 of the housing 20 when the slide base 40 reaches the foremost position. The position detection switch is turned on. The reason why the protruding portion 41a is inserted into the groove 53 is to prevent foreign matter from entering between the slide base 40 and the bottom surface of the housing.
[0011]
The bottom plate 41 of the slide base 40 is formed with guide protrusions 41b that are engaged with the guide grooves 51b of the rack member 51, and the left and right side plates 42 are engaged with the guide grooves 32 of the cam member 30. Guide protrusions (not shown) are respectively formed.
[0012]
As shown in FIGS. 10 and 11, a display driving motor 62 is attached to the bottom plate 41 of the slide base 40 via a plate-like motor bracket 61. The motor bracket 61 to which the motor 62 is fixed in advance is screwed to the bottom plate 41 of the slide base 40 via a plurality of screws. The positioning groove 61a formed on the left side of the motor bracket 61 is engaged with a boss 41b protruding from the bottom plate 41, and the groove 61b formed on the right side of the motor bracket 61 protrudes from the bottom plate 41. The stopper 41c thus made can be engaged. The stopper 41c has a wide upper portion as shown in FIG. The motor bracket 61 is formed with a hole 61c that can be engaged with a boss 41d protruding from the bottom plate 41. A worm 62 a is attached to the output shaft of the motor 62, and a motor bracket 61 is screwed at a position where the worm 62 a meshes with the worm wheel 63 in FIGS. 10 and 11.
[0013]
The bottom plate 41 of the slide base 40 is formed with a screw hole BH for temporary fixing in addition to a screw hole for screwing the motor bracket 61 to the position shown in FIG. In order to manually check the operation of the display at the time of manufacture, the bracket 61 is temporarily fixed at a position where the worm 62a and the worm wheel 63 do not mesh with each other using the screw hole BH (see FIGS. 12 and 13).
[0014]
When the worm 62a is engaged with the worm wheel 63, the driving force of the motor 62 is transmitted to the gear member 64 with the clutch via the worm 62a and the worm wheel 63, and then the pinion 65 via the reduction gear train (not shown). (FIG. 7). As the pinion 65 rotates, the slide base 40 moves in the A and B directions via the rack 51a.
[0015]
15 and 16 are enlarged views showing a connected state of the worm wheel 63 and the gear member 64. FIG. A shaft 66 passes through the center of the worm wheel 63, and a hole 63b having a shape shown in FIG. 16 is formed in the protruding portion 63a. On the other hand, the gear member 64 has two pieces 64A and 64B that are connected with a slip member 64C such as felt interposed therebetween, and the above-mentioned shaft 66 passes through the center. One piece 64A is formed with a protrusion 64a fitted into the hole 63b of the worm wheel 63, and the other piece 64B is formed with a gear 64b. A compression spring 67 is interposed between the worm wheel 63 and the gear member 64, and the piece 64A is pressed toward the piece 64B by the biasing force. Both ends of the shaft 66 are rotatably supported by brackets 68a and 68b projecting from the slide base 40 as shown in FIGS.
[0016]
When the worm wheel 63 is rotated by the motor 62, the piece 64 </ b> A of the gear member 64 is rotated integrally through the connecting portion composed of the hole 63 b and the projecting portion 64 a, and usually the other one connected by the biasing force of the spring 67. The piece 64B also rotates together to transmit power to the subsequent reduction gear train. When a rotational load exceeding a predetermined value acts on the other piece 64B, the piece 64A rotates alone by sliding on the slip member 64C.
[0017]
FIGS. 17 and 18 show a state in which the worm wheel 63 and the gear member 64 of FIGS. 10 and 11 are removed, respectively. Reference numeral 70 denotes a mechanism for axially pressing a worm 62a attached to the output shaft of the motor 62. The lever 71 is provided with a lever 71 and a lever 71 that are rotatable about an axis X protruding from the bottom plate 41 of the slide base 40. And a torsion coil spring 72 to be energized. One end of the torsion coil spring 72 is hooked on the bracket 68b, and the other end is hooked on a standing wall 71a formed on the lever 71, whereby the lever 71 is urged counterclockwise in FIG. 71a presses the worm 62a in the A direction (axial direction of the motor output shaft). As a result, as shown in FIG. 24, the other end of the motor output shaft 62b is always pressed against the bearing 62c in the motor.
[0018]
When the motor 62 rotates in either direction, a force in the direction A is applied to the output shaft 26b via the worm wheel 63 and the worm 62a, and a force in the direction B is applied when the motor 62 rotates in the opposite direction. . However, since the worm 62a is always pressed in the A direction by the pressing mechanism 70 as described above, the output shaft 62b does not move in the B direction even when a force in the B direction is applied, in other words, the rotation of the motor 62. Regardless of the direction, the output shaft 62b always maintains the same position, and therefore there is no difference in output between when the motor 62 is rotating forward and when it is rotating backward. Further, as shown in the figure, the standing wall 71a is in contact with the spherical surface at the tip of the worm 62a. On the other hand, the contact portion of the output shaft 62b with the bearing 62c is also processed into a substantially spherical surface. Even if the torsion coil spring 72 receives the pressing force, the motor rotational load caused by the point contact is small enough to be ignored.
[0019]
A stopper ST is formed below the bracket 68a that supports one end of the shaft 66, and the stopper ST prevents the worm 62a from coming off the output shaft 62b. That is, even if the worm 62a attempts to come off from the output shaft 62b while pressing the standing wall 71a against the spring force of the torsion coil spring 72 for some reason, the movement of the standing wall 71a is restricted by the stopper ST. Does not escape from the output shaft 62b.
[0020]
As shown in FIG. 19, the display 10 has a display screen 13 on the front surface, brackets 11 are fixed to the left and right side surfaces, and cam follower pins 11 a project from the lower ends of the brackets 11. The display 10 is arranged in the housing 20 so that these cam follower pins 11a penetrate the long holes 42a on the side surface of the slide base 40 and the cam grooves 31 of the cam member 30 described above. Reference numerals 14 denote shaft support portions provided on both side surfaces of the display 10.
[0021]
A roller 12 as shown in FIG. 20 is attached to the inside of the display 10 via a base 13, and a part of the roller 12 protrudes from the center of the corner between the upper surface and the back surface of the display 10. The roller 12 has a bush 12 a and a rubber contact portion 12 b disposed around the bush 12 a, and is rotatably supported on the base 13 via a shaft 14. A compression spring 15 for backlash is interposed between one end of the bush 12a and the base 13, and the roller 12 is pressed to the right in the drawing by the spring 15. When the display 10 moves between the storage position and the use position, the roller 12 rotates in contact with the lid 1a on the vehicle side to open and close the lid 1a.
[0022]
21 to 23 show a link member 80 for driving the display. The link member 80 includes left and right link portions 81 and a connecting portion 82 that connects them, and each link portion 81 is formed with a spring hook 81a. Each link portion 81 is provided with two shaft support portions 81b and 81c. As shown in FIGS. 2 and 25, one shaft support portion 81b is connected to each shaft support portion 14 on the side of the display, and the other shaft support portion 81c is connected to each link portion 81c. Each of the cam members 30 is pivotally supported by a shaft support portion 33 protruding from the cam member 30. Both ends of a tension coil spring 91 for rattling are hooked on the spring hooks 81a of the link portions 81 and the spring hooks 22a of the housing side plate 22, whereby the link member 80 is always in the clockwise direction of FIG. Be energized.
[0023]
The operation of the on-vehicle monitor device configured as described above will be described in detail.
In the storage position shown in FIG. 2, the display 10 takes a recumbent posture with the screen 13 facing downward, and is completely stored in the housing 20, that is, in the dashboard 1. At this time, the lid 1a of the dashboard 1 is closed by a biasing force of a spring (not shown) and is not in contact with the roller 12 of the display 10. The slide base 40 is in the position shown in FIG. 9 (the rear side of the display 10), and the display 10 is urged by a tension spring 91 in a direction to hold the storage position via the link member 80. As a result, even if vibration occurs in the vehicle, the display 10 does not rattle, and generation of unpleasant noise can be prevented.
[0024]
When a predetermined display protrusion operation is performed, a control circuit (not shown) rotates the motor 62 in the forward direction, and the rotation is transmitted to the left and right pinions 65 via the worm wheel 63, the gear member 64, and a reduction gear mechanism (not shown). Then, the slide base 40 starts moving in the direction B in FIG. 7 by the engagement of the pinion 65 and the rack 51a. The movement of the slide base 40 is guided by the guide groove 51 b of the rack member 51 and the guide groove 32 of the cam member 30. As the slide base 40 moves, the end surface of the long hole 42a (FIG. 9) pushes the cam follower 11a of the display 10, and the cam follower 11a moves in the cam groove 31 while moving upward through the long hole 42a. Along with this, the display 10 gets up while moving as shown in FIG. The posture of the display 10 at each position is determined by the shape of the cam groove 31 and the connection position of the link member 80.
[0025]
When the display 10 rises, the roller 12 comes into contact with the lower surface of the lid 1a and pushes it open while rolling on the lid 1a. The display 10 rises smoothly until the state of FIG. 5 is reached through the states of FIGS. 2 to 3 and 4 in order, and in the state of FIG. 5, the lid 1a is in the most open state. After this, the display 10 falls in the opposite direction. At that time, as shown by a two-dot chain line in FIG. 5, the top of the display 10 (the portion provided with the roller 12) moves substantially parallel to the lid 1a in the open position. Since the shape of the cam groove 31 is determined, the lid 1a does not move in the closing direction even if the display 10 is tilted. As a result, the display 10 appears as if it is moving regardless of the lid 1a, and the sense of quality is not impaired.
[0026]
In the state of FIG. 6, the slide base 40 is positioned at the foremost position, and the operation member turns on the position detection switch. In response to this, the control circuit stops the motor 62. When an operation for storing the display 10 is performed after use, the motor 62 is reversed, and the display 10 is driven to the storage position by the reverse operation to that described above. At that time, the lid 1a does not move until the display 10 stands upright, and thereafter, the lid 1a closes following the storing operation of the display 10 by the biasing force of a spring (not shown).
[0027]
As described above, in the present embodiment, since the roller 10 that rolls on the lid 1a is provided in the display 10, the lid 1a can be smoothly opened and closed, and the generation of sliding noise can be prevented. Further, since the contact portion 12b of the roller 12 that rolls on the lower surface of the lid 1a is made of rubber, even if the vehicle vibrates while the display 10 is moving or in use, the roller 12 hits the lid 1a. Generation of unpleasant sound can be reduced to a minimum. In addition, since the roller 12 is pressed in one direction by the compression spring, the roller 12 itself does not rattle and the generation of low-level sounds is suppressed.
[0028]
Further, the action of the spring 91 can suppress the generation of sound due to the play of the display 10. That is, when the display 10 is driven from the storage position to the use position, the link member 80 initially rotates about the shaft support portion 81c counterclockwise in the illustrated counterclockwise direction against the urging force of the spring 91, and the display 10 stands upright. After that, it rotates in the clockwise direction, that is, the biasing direction of the spring 91. Therefore, the display 10 is urged toward the storage position by the spring 91 until the display 10 stands upright from the storage position, but is urged toward the use position by the same spring 91 after standing upright. Therefore, the display 10 does not rattle due to the vibration of the vehicle even at the use position, and the generation of unpleasant noise can be prevented.
[0029]
In the configuration of the above embodiment, the motor 61, the slide base 40, the cam groove 31 and the link mechanism 80 constitute the driving means, the lid 1a of the dashboard 1 constitutes the lid member, and the spring 15 constitutes the urging means.
[0030]
In addition, the form of the movement of the display and the posture change is not limited to those shown in FIGS. 2 to 6, and other forms may be used as long as the display is in contact with the lid member on the vehicle side and pushes it open. For example, the display may simply rotate about a predetermined axis. The roller mounting position may be any position that can contact the lid member, and is not particularly limited to the corners between the back surface and the top surface.
[0031]
【The invention's effect】
According to the present invention, since the display is separated from the lid member on the vehicle side, it is not necessary to consider the shape and color on the vehicle side when manufacturing the monitor device. In addition, when the display moves from the storage position toward the use position, a part of the display comes into contact with the lid member to push open the lid member, so that the display drive mechanism and the lid member are connected. The number of man-hours when the vehicle is mounted can be reduced, and the operation of the occupant when using the display is reduced compared with the case where the display is projected after the lid is manually opened.
If a roller is provided at the contact position with the lid member of the display and the roller pushes and opens the lid member while rolling on the lid member, the lid member can be smoothly opened as the display moves. Generation of sliding noise can be prevented. If at least the contact portion of the roller with the lid member is formed of rubber, the generation of unpleasant noise can be minimized even if the lid member strikes the display due to vibration or the like. If the roller is urged toward one of the shaft support portions by the urging means, the backlash of the roller can be eliminated and the generation of lower sound can be prevented.
When the display reaches the use position when the display is tilted in the reverse direction through the upright posture, it is opened once the display is changed without moving the lid member until the use position posture is reached from the upright posture. Undesirable movement of the lid member being driven in the closing direction can be prevented, and a high-class feeling can be obtained.
[Brief description of the drawings]
FIG. 1 is a diagram showing a mounting position of an in-vehicle monitor device according to an embodiment of the present invention.
FIG. 2 is a diagram for explaining the operation of the in-vehicle monitor device.
FIG. 3 is a view similar to FIG.
4 is a view similar to FIG.
FIG. 5 is a view similar to FIG.
6 is a view similar to FIG.
FIG. 7 is a plan view showing a drive system of the in-vehicle monitor device.
8 is a front view of FIG. 7. FIG.
9 is a view as seen from the line CC in FIG. 8. FIG.
FIG. 10 is a plan view showing a state in which the motor is mounted in a normal position.
11 is a front view of FIG.
FIG. 12 is a plan view showing a state where the motor is attached to a temporary position.
13 is a front view of FIG.
14 is a view of the stopper 41c as viewed from the direction D in FIG.
15 is a partial cross-sectional view showing a connected state of the worm wheel 63 and the gear member 64. FIG.
16 is a cross-sectional view taken along line EE in FIG.
FIG. 17 is a plan view illustrating a worm pressing mechanism.
18 is a front view of FIG. 17. FIG.
FIG. 19 is a perspective view showing a display.
FIG. 20 is a cross-sectional view showing a roller provided in the display.
FIG. 21 is a view showing a link member.
22 is a view seen from the direction F in FIG. 21. FIG.
23 is a view seen from the direction G in FIG. 22;
FIG. 24 is a diagram showing a state inside the motor when the worm is pressed in the axial direction.
FIG. 25 is a schematic perspective view of a monitor device.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Dashboard 1a Lid 10 Display 11, 14 Bracket 11a Cam follower 12 Roller 13 Screen 15, 91 Spring 20 Case 30 Cam member 31 Cam groove 40 Slide base 41a Protrusion part 51 Rack member 51a Rack 52 Guide member 53 Groove 61 Motor bracket 62 Motor 62a Worm 63 Worm wheel 64 Gear member 65 Pinion 80 Link member

Claims (6)

A display that is movable between a storage position stored in a storage unit of the vehicle and a use position protruding from the storage unit; and a drive unit that electrically drives the display between the storage position and the use position. An in-vehicle monitor device configured to cover the storage portion with a lid member on a vehicle side when the display is in a storage position;
The display is separate from the lid member, and when the display moves from the storage position toward the use position, a part of the display is in contact with the lid member to push the lid member open .
Furthermore, the drive means includes a cam mechanism for changing the posture of the display, and reaches the use position when the display which takes a lying posture in the retracted position gradually rises and tilts by a predetermined amount in the reverse direction through the upright posture. In addition, the on-vehicle monitor device is characterized in that the cam shape of the cam mechanism is determined so that the display changes the posture without moving the lid member from the upright posture to the use position posture .   2. The display according to claim 1, wherein the display is provided with a roller at a contact position with the lid member, and the roller pushes and opens the lid member while rolling on the lid member. In-vehicle monitor device.   The in-vehicle monitor device according to claim 2, wherein at least a contact portion of the roller with the lid member is formed of rubber.   The in-vehicle monitor device according to claim 2, wherein the roller is provided at a corner portion between an upper surface and a rear surface of the display. 5. The display has a shaft support portion that rotatably supports the roller from both ends, and the roller is urged toward one of the shaft support portions by an urging means. The in-vehicle monitor device according to any one of the above. The storage unit is provided in the dashboard of a vehicle, the lid member according to any one of claims 1 to 5, characterized in that it is provided to be opened and closed revolvable on top of the dashboard In-vehicle monitor device.

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