JPH11282372A - Retractable display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the screen of a retractable display device from becoming hard to see because of vibration, the retractable display device being designed to rotate and draw out a display panel to view it. SOLUTION: Segment gears 45 whose centers coincide with the center of rotation of a liquid-crystal display panel 26 are provided at the lower parts of both sides of the liquid-crystal display panel 26, and lock plates 37 are freely slidingly provided on a movable chassis 12. Engagement teeth 44 at the ends of the lock plates 37 are engaged with the locking segment gears 45 to lock the liquid-crystal display panel 26 in place.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stowable display device, and more particularly to a stowable display device which is stored in a frame when not in use and a display panel is pulled out when in use.

[0002]

2. Description of the Related Art For example, when a vehicle is equipped with a navigation device, it is necessary to display the position of the vehicle on a map by display means. Therefore, conventionally, an on-dash type liquid crystal panel is mounted on the instrument panel. In this case, the mounting is performed by making a hole in the outer surface of the instrument panel and fixing the liquid crystal display panel with screws.

On the other hand, a built-in type display device is built in an instrument panel or a console panel together with an audio device. And such a built-in type display device,
The liquid crystal display panel is housed in a frame, and is drawn out and moved to a use position at the time of use.

[0004]

As described above, in the built-in type retractable display device, the display panel is pulled out and moved to the use position when used. That is, since the display panel is supported so as to be able to be pulled out, vibration of the vehicle during traveling is easily transmitted, and there is a problem that the display screen of the display panel swings and becomes very difficult to see.

If the angle of the display panel can be arbitrarily adjusted, the display panel is more easily shaken. For this reason, this type of conventional display device has been unable to adjust the angle. Therefore, there is a problem that the angle cannot always be adjusted to be most easily seen.

SUMMARY OF THE INVENTION The present invention has been made in view of such a problem, and it is intended to prevent the display panel from vibrating when pulled out to a use state and to stably hold the display panel at an arbitrary angle. It is an object of the present invention to provide a retractable display device.

[0007]

SUMMARY OF THE INVENTION The present invention comprises a frame,
A movable chassis slidably supported on the frame in the front-rear direction, a display panel rotatably mounted on a front end side of the movable chassis, and a slidably mounted on the movable chassis; A lock plate biased to the display panel side, and the display panel is pulled out by pulling out the movable chassis from the frame and rotating the display panel forward, and in a use state, The present invention relates to a stowable display device, wherein a movement of a display panel in a rotation direction is prevented by the lock plate.

[0008] The locking plate may be provided with engaging teeth at a tip portion thereof, and a segment gear engaging with the engaging teeth may be attached to a side surface of the display panel. Further, a protrusion is provided on the lock plate, and when the movable chassis is drawn out of the maximum stroke, the protrusion contacts the locking portion of the frame to restrict a forward stroke, and the lock by the lock plate is locked. Operation may be prevented.

Further, the display panel may be rotated forward and pulled out in a state where the movable chassis is drawn out at a maximum stroke. In addition, the display panel is moved to the use position by retreating the movable chassis again after the display panel is rotated forward and pulled out, and the blocking of the locking operation is released by the retreat of the movable chassis. The display panel may be locked by the lock plate. Further, a knob may be provided on the lock plate, and the lock by the lock plate may be manually released by operating the knob.

A preferred embodiment of the present invention is to prevent the display panel pulled out to the use position from being deflected due to the vibration of the vehicle and becoming very difficult to see, and also to be used when the angle of the display panel is changed. The present invention relates to a retractable display device in which a shake prevention mechanism functions effectively.

That is, a segment gear whose center coincides with the center of rotation of the display panel is provided on the side surface of the display panel, and a lock plate having engagement teeth for engaging with the segment gear is provided. By engaging the engagement teeth of the lock plate with the segment gear,
Locking is performed. Here, when the display panel is rotated and pulled out, the lock by the lock plate is released.

By releasing the locking operation of the lock plate with a knob, the display panel can be freely rotated and adjusted to an arbitrary angle. After that, when the user releases the knob, the display panel is locked again by the lock plate, and the display panel is locked at an arbitrary adjustment angle.

According to this aspect, the vibration of the display panel accompanying the traveling of the vehicle is suppressed, and the screen is prevented from being difficult to see. Further, since the locking is performed by engaging the engaging teeth of the lock plate with the segment gear whose center is equal to the rotation center of the display panel, it is possible to perform locking at an arbitrary rotation angle, It is possible to improve the merchantability by setting the rotation angle finely.
Further, the lock of the lock plate can be arbitrarily released by the knob, and the angle can be easily corrected.

Further, when the display panel is driven to rotate by a motor, unnecessary vibration is prevented from being applied to the axis of the motor by the display panel, so that the life of the motor is extended.

[0015]

1 to 8 show a retractable display device according to an embodiment of the present invention, and this display device relates to a display device using a liquid crystal display panel. As shown in FIGS. 4 to 6, the apparatus includes a frame 10 having a flat rectangular parallelepiped shape.
Has an opening 11 in front of it. And frame 1
The movable chassis 12 is movable in the direction of the opening 11 inside the movable chassis 12.
Is arranged.

As shown in FIG. 6, a guide rod 15 having a circular cross section is attached to one side of the frame 10, and this guide rod 15 can slide with a slide bearing 16 fixed to the movable chassis 12. Is fitted. A slide rail 17 is movably attached to the frame 10, and the slide rail 17 supports a lower portion of the movable chassis 12.

A horizontally long operation panel 20 is fixed to a front end portion of the movable chassis 12. The operation panel 20 has a plurality of operation buttons 21 and a horizontally long auxiliary display unit 22. In addition, compact disk (product name)
And a disc insertion slot 23 for inserting a disc-shaped recording medium such as a disc or a mini disc (product name).

A liquid crystal display panel 26 is rotatably mounted on the movable chassis 12, as shown in FIGS. That is, the lower portions on both sides of the liquid crystal display panel 26 having a flat rectangular parallelepiped shape are rotatably supported on the front end side of the movable chassis 12 via the pins 27. A segment gear 28 is attached to both sides of the liquid crystal display panel 26 on the rear side of the cabinet. The segment gear 28 is fixed to an output shaft of a motor 29 fixed on the movable chassis 12. The liquid crystal display panel 26 is rotated by a motor 29.

The display device provided with such a liquid crystal display panel 26 is a display device for a vehicle, and is arranged so as to be housed vertically on an instrument panel or a console panel of an automobile together with an audio device. .

Next, a mechanism for preventing vibration when the display panel 26 is rotated and pulled out will be described. The mechanism for preventing vibration is composed of a pair of right and left lock plates 37 shown in FIG.

Each of the lock plates 37 has a pair of long holes 38 along its length direction.
Are pins 3 implanted on both side walls of the movable chassis 12.
9, the lock plate 37 is supported slidably on the side wall of the movable chassis 12 in the front-rear direction. The lock plate 37 is slid forward by a return spring 40. A knob 41 is attached to the upper surface of the lock plate 37.

Engaging teeth 44 are formed at the distal end portions of the left and right lock plates 37. Locking segment gears 45 are attached to both side surfaces of the liquid crystal display panel 26 at the lower end portions thereof so as to mesh with the engaging teeth 44. The right segment gear 45 is integrated with the segment gear 28 for rotating the liquid crystal display panel 26. The center of the segment gear 45 is the center of rotation of the liquid crystal display panel 26, that is, the pin 2
7 coincides with the axis.

A protruding piece 46 is provided on the lower end side of the lock plate 37 and on the rear end side thereof. The protruding piece 46 is provided at the edge of the opening 11 of the frame 10 corresponding to the protruding piece 46. A locking piece 47 is connected to the lower end portion by bending (see FIG. 5).

Next, the pull-out operation of the retractable display device according to the above configuration will be described. In the housed state, as shown in FIGS. 1 and 4, the liquid crystal display panel 26 is housed in the frame 10 and the operation panel 20 is arranged on the audio operation panel 33 as shown in FIG. It has become.

When the liquid crystal display panel 26 is used, as shown in FIGS. 5 and 6, the movable chassis 12 is pulled forward with respect to the frame 10. This pulling-out operation may be performed by a motor via a rack and a pinion, or may be performed by pulling the operation panel 20 forward by hand. At this time, the movable chassis 12 is pulled out while being guided by the guide rod 15 and the slide rail 17.

In the state shown in FIG. 4, the lock plates provided on both side surfaces of the movable chassis 12 are slid forwardly urged by a return spring 40, and the engagement teeth 44 on the distal end side thereof have a liquid crystal. The display panel 26 is engaged with the locking segment gear 45. That is, in the stored state, the engagement teeth 44 of the lock plate 37 and the segment gear 45 are engaged.

However, when the lock plate 37 is moved forward together with the movable chassis 12 in conjunction with the pulling-out operation of the movable chassis 12, particularly, as shown in FIG. Immediately before, the projecting piece 46 provided on the rear end side of the lock plate 37 is
0 abuts the locking piece 47. Therefore, the lock plate 3
7 cannot move forward, so that the return spring 40
, The lock plate 37 is moved rearward relative to the movable chassis 12. Therefore, the lock plate 37
Is disengaged from the locking segment gear 45. That is, when the movable chassis 12 is completely pulled out of the frame 10, the lock of the liquid crystal display panel 26 is released.

When the movable chassis 12 is completely pulled out of the frame 10, as shown in FIG.
9 and the segment gear 28 is driven by the pinion 30.
Drive. As described above, the liquid crystal display panel 26 is unlocked by the lock plate 37. For this reason, the liquid crystal display panel 26 to which the segment gear 28 is attached is rotated counterclockwise around the pin 27 as shown in FIG. The liquid crystal display panel 26 is turned substantially upright. At this time, it is also possible to adjust the inclination of the liquid crystal display panel 26 as needed, and to set the angle to an oblique angle as shown by a two-dot chain line in FIG.

Thereafter, as shown in FIG. 8, the movable chassis 12 is pulled into the frame 10 again. At this time, the liquid crystal display panel 26 standing upright with respect to the edge of the opening 11 of the frame 10 is retracted until it is located slightly forward.
In this state, predetermined display is performed by the liquid crystal display panel 26. At this time, as described above, the liquid crystal display panel 26 may be slightly inclined backward as indicated by the chain line.

When the movable chassis 12 is moved back into the frame 10 as described above, the projecting piece 40 of the lock plate 37 attached to the movable chassis 12 is moved along with this moving operation. Separated from 47. Therefore, the engagement teeth 44 of the lock plate 37 are engaged with the locking segment gear 45 by the return spring 40. That is, the liquid crystal display panel 26 is locked by the lock plate 37 in a state where the liquid crystal display panel 26 is moved to the use position as shown in FIG.

When storing the liquid crystal display panel 26,
The reverse operation is performed. That is, the movable chassis 12 supporting the liquid crystal display panel 26 which is substantially upright as shown in FIG. 8 is pulled out again forward as shown in FIG. With this operation, the lock by the lock plate 37 is released.
Therefore, in this state, the pinion 3 is
As shown in FIGS. 5 and 6, the liquid crystal display panel 26 may be rotated clockwise about the pin 27 via the 0 and the segment gear 28 and housed in the movable chassis 12. After this, the movable chassis 12 is
You only have to pull in. As a result, the storage state shown in FIG. 4 is obtained.

As shown in FIG. 5, when the movable chassis 12 is completely pulled out as shown in FIG. 5, the projection 46 of the lock plate 37 engages with the engagement piece 47 of the frame 10. Abuts the engagement teeth 4 of the lock plate 37
4 are disengaged from the locking segment gears 45 on both sides of the liquid crystal display panel 26. Therefore, in this state, the liquid crystal display panel 26 may be pulled out by the motor 29 via the segment gear 28 as shown in FIG. Then, after the angle is set, the movable chassis 12 is slid again in the storage direction, so that the protruding pieces 46 of the lock plate 37 come off from the locking pieces 47, so that the liquid crystal display panel 26 is fixed at an arbitrary angle. The vibration is prevented.

As described above, the liquid crystal display panel 26 is arranged as shown in FIG.
Are locked by the lock plate 37 in the use state shown in FIG.
No vibration is transmitted to the shaft of the motor 29 via the motor, thereby protecting the motor 29.

According to such a stowable display device, the liquid crystal display panel 26 does not oscillate due to the vibration accompanying the running of the vehicle, and the visibility of the screen is maintained. Further, the liquid crystal display panel 26 pulled out can be locked by the lock plate 37 with the angle adjusted to an arbitrary angle, and the angle can be adjusted arbitrarily.

The lock plate 37 is released even when the movable chassis 12 is not completely pulled out.
This can be performed by moving the lock plate 37 backward. In addition, since the inclination angle of the liquid crystal display panel 26 can be set finely, the merchantability can be improved. The liquid crystal display panel 26
Is not transmitted to the motor 29 via the segment gear 28, thereby protecting the motor 29.

[0036]

As described above, the present invention relates to a frame, a movable chassis slidably supported by the frame in the front-rear direction, and a display panel rotatably attached to the front end of the movable chassis. And a lock plate slidably mounted on the movable chassis and biased toward the display panel. The display panel is pulled out by pulling out the movable chassis from the frame and rotating the display panel forward. In addition, the movement of the display panel in the rotation direction in the use state is prevented by the lock plate.

Therefore, the vibration of the display panel is prevented by the lock plate in the use state, and it is possible to eliminate the difficulty in viewing the screen due to the vibration.

According to the configuration in which the engaging teeth are provided at the distal end of the lock plate and the segment gears that engage with the engaging teeth are mounted on the side surface of the display panel, the engaging teeth of the lock plate are segmented. By engaging with the gear, the movement of the display panel in the turning direction is prevented.

A protruding piece is provided on the lock plate, and when the movable chassis is drawn out of the maximum stroke, the protruding piece comes into contact with the locking portion of the frame to restrict the forward stroke, and the locking operation by the lock plate is performed. Is prevented, the lock by the lock plate is automatically released when the movable chassis is pulled out of the maximum stroke.

According to the structure in which the display panel is rotated forward and pulled out in a state where the movable chassis is pulled out at the maximum stroke, the display panel is turned forward and pulled out in the unlocked state. It becomes possible.

The display panel is moved to the use position by retreating the movable chassis after the display panel is rotated forward and pulled out, and the locking operation of the lock plate is released by the retreat of the movable chassis. According to the configuration in which the display panel is locked by the lock plate, when the display panel is moved to the use position, the display panel is automatically locked by the lock plate.

According to a configuration in which the lock plate is provided with a knob, and the lock by the lock plate is manually released by operating the knob, the lock is arbitrarily released by operating the knob. Become like

[Brief description of the drawings]

FIG. 1 is an external perspective view of a stowable display device in a stowed state.

FIG. 2 is an external perspective view of the drawn state.

FIG. 3 is an exploded perspective view showing a lock mechanism of the liquid crystal display panel.

FIG. 4 is a longitudinal sectional view of a stored state.

FIG. 5 is a longitudinal sectional view of a drawn state.

FIG. 6 is a plan view of the same.

FIG. 7 is a longitudinal sectional view showing a state where the liquid crystal display panel is rotated forward.

FIG. 8 is a longitudinal sectional view when the display panel is moved to a use position.

[Explanation of symbols]

10 ‥‥ frame, 11 ‥‥ opening, 12 ‥‥ movable chassis, 15 ‥‥ guide rod, 16 ‥‥ sliding bearing, 17 ‥
{Slide rail, 20} Operation panel, 21} Operation button, 22} Auxiliary display unit, 23} Disc insertion slot, 2
6 ‥‥ liquid crystal display panel, 27 ‥‥ pin, 28 ‥‥ segment gear, 29 ‥‥ motor, 30 ‥‥ pinion, 33 ‥
{Audio control panel, 37} Lock plate, 38}
Long hole, 39 ° pin, 40 ° return spring, 41 ° knob, 44 ° engaging tooth, 45 ° locking segment gear, 46 ° protruding piece, 47 ° locking piece

 ────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Kiyonobu Morita 6-35 Kita Shinagawa, Shinagawa-ku, Tokyo Sony Corporation

Claims (6)

[Claims] 1. A frame, a movable chassis supported slidably in the front-rear direction by the frame, a display panel rotatably attached to a front end side of the movable chassis, and a sliding member mounted on the movable chassis. A lock plate movably attached to the display panel, wherein the display panel is pulled out by pulling out the movable chassis from the frame and rotating the display panel forward. The retractable display device, wherein the lock plate prevents movement of the display panel in the rotation direction in a use state. 2. The lock panel according to claim 1, wherein said lock plate is provided with engaging teeth at a tip end thereof, and a segment gear engaging with said engaging teeth is attached to a side surface of said display panel. The stowable display device as described in the above. 3. The lock plate is provided with a protruding piece, and when the movable chassis is pulled out of the maximum stroke, the protruding piece abuts on a locking portion of the frame to restrict a forward stroke. The stowable display device according to claim 1, wherein a lock operation by the lock plate is prevented. 4. The retractable display device according to claim 3, wherein the display panel is rotated forward and pulled out in a state where the movable chassis is drawn out at a maximum stroke. 5. The display panel is moved to a use position by retreating the movable chassis again after the display panel is rotated forward and pulled out, and the locking operation is prevented by retreating the movable chassis. 4. The retractable display device according to claim 3, wherein the display panel is locked by the lock plate. 6. A lock is provided on the lock plate,
The retractable display device according to claim 3, wherein the lock by the lock plate is manually released by operating the knob.