JP3978551B2 - Retractable display device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a retractable display device, and more particularly to a retractable display device that is accommodated in a frame when not in use and a display panel is pulled out when in use.
[0002]
[Prior art]
For example, when a car is equipped with a navigation device, it is necessary to display the position of the vehicle on the map by the display means. Therefore, conventionally, an on-dash type liquid crystal panel is mounted on the instrument panel. In this case, attachment is performed by a method of making a hole in the outer surface of the instrument panel and fixing the liquid crystal display panel with screws.
[0003]
On the other hand, a built-in type display device is incorporated in an instrument panel or a console panel together with an audio device. In such a built-in type display device, the liquid crystal display panel is housed in a frame, and is pulled out during use and moved to a use position.
[0004]
[Problems to be solved by the invention]
In this way, the built-in type retractable display device draws the display panel and moves it to the use position when it is used. That is, since the display panel is supported so as to be able to be pulled out, there is a problem that the vibration of the vehicle during traveling is easily transmitted, and the display screen of the display panel is shaken and becomes very difficult to see.
[0005]
Further, 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 cannot adjust the angle. Therefore, there is a problem that the angle cannot be adjusted to the most easily viewable angle.
[0006]
The present invention has been made in view of such a problem, and prevents the display panel from vibrating when pulled out to a use state, and can be stably held at an arbitrary angle. An object is to provide an expression display device.
[0007]
[Means for Solving the Problems]
The present invention includes a frame;
A movable chassis that is slidably supported in the longitudinal direction on the frame;
A display panel rotatably attached to the front end side of the movable chassis;
An engagement member attached to the display panel and rotating together with the display panel about a rotation axis of the display panel;
A lock plate slidably attached to the movable chassis and biased toward the display panel so as to engage with the engagement member ;
The display panel is pulled out by pulling the movable chassis out of the frame and rotating the display panel forward, and the movable chassis is retracted after the display panel is pulled out The movement of the display panel in the rotation direction is prevented by the lock plate engaged with the engagement member .
[0008]
It said engaging member is composed of the segment gear, moreover with engagement teeth are provided at the distal end portion of the locking plate, wherein the segment gear which engages with the engaging tooth is about the rotation axis of the display panel It may be attached to the side surface of the display panel so as to rotate together with the display panel . In addition, a protrusion is provided on the lock plate, and when the movable chassis is pulled out to the maximum stroke, the protrusion contacts the locking portion of the frame and the forward stroke is restricted. Operation may be prevented.
[0009]
Further, the display panel may be rotated forward and pulled out while the movable chassis is pulled out to the maximum stroke. Further, after the display panel is pulled out, the display panel is moved to the use position by rotating the movable chassis again by moving it forward, and the blocking of the locking operation is released by the retracting of the movable chassis. The display panel may be locked by the lock plate. The lock plate may be provided with a knob, and the lock by the lock plate may be manually released by operating the knob.
[0010]
According to a preferred aspect of the present invention, the display panel pulled out to the use position is prevented from being shaken by vibration of the vehicle and becoming very difficult to see, and also when the angle of the display panel is changed, the shake is prevented. The present invention relates to a retractable display device in which the above mechanism functions effectively.
[0011]
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 that engage with the segment gear is provided. Locking is performed by engaging the engaging teeth with the segment gear. Here, when the display panel is rotated and pulled out, the lock by the lock plate is released.
[0012]
Further, by releasing the lock operation of the lock plate with a knob, the display panel can be freely rotated and adjusted to an arbitrary angle. Thereafter, when the hand is released from the knob, the display panel is locked again by the lock plate, and the display panel is locked at an arbitrary adjustment angle.
[0013]
According to such an aspect, the vibration of the display panel accompanying the traveling of the vehicle is suppressed, and it is possible to prevent the screen from becoming difficult to see. In addition, since the engagement is performed by engaging the engagement teeth of the lock plate with the segment gear whose center is equal to the rotation center of the display panel, the lock can be performed at an arbitrary rotation angle. It becomes possible to improve the merchantability by finely setting the rotation angle. Further, the lock plate can be arbitrarily unlocked by the knob, and the angle can be easily corrected.
[0014]
Further, when the display panel is rotationally driven by a motor, unnecessary vibrations are prevented from being applied to the shaft of the motor by the display panel, so that the life of the motor is extended.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
1 to 8 show a retractable display device according to an embodiment of the present invention, which relates to a display device using a liquid crystal display panel. As shown in FIGS. 4 to 6, this apparatus includes a frame 10 having a flat rectangular parallelepiped shape, and the frame 10 has an opening 11 at the front thereof. A movable chassis 12 is disposed in the frame 10 so as to be movable in the direction of the opening 11.
[0016]
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 is slidably fitted to a sliding bearing 16 fixed to the movable chassis 12. Has been. A slide rail 17 is movably attached to the frame 10, and the lower portion of the movable chassis 12 is supported by the slide rail 17.
[0017]
A horizontally long operation panel 20 is fixed to the front end portion of the movable chassis 12. The operation panel 20 includes a plurality of operation buttons 21 and a horizontally long auxiliary display unit 22. A disc insertion slot 23 is provided for inserting a disc-shaped recording medium such as a compact disc (product name) or a mini disc (product name).
[0018]
A liquid crystal display panel 26 is rotatably mounted on the movable chassis 12 as shown in FIGS. That is, the lower portions of both sides of the flat rectangular liquid crystal display panel 26 are rotatably supported on the front end side of the movable chassis 12 via the pins 27. Further, segment gears 28 are attached to both sides of the back side of the cabinet of the liquid crystal display panel 26, and the segment gears 28 are fixed to the output shaft of a motor 29 fixed on the movable chassis 12 and a pinion 30. The liquid crystal display panel 26 is rotated by a motor 29.
[0019]
A display device including such a liquid crystal display panel 26 is a vehicle-mounted display device, and is stored side by side on an automobile instrument panel or console panel together with an audio device.
[0020]
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 left and right lock plates 37 shown in FIG.
[0021]
Each of these lock plates 37 is provided with a pair of long holes 38 along the length direction thereof, and these long holes 38 receive pins 39 implanted in the side wall portions on both sides of the movable chassis 12. The lock plate 37 is supported on the side wall of the movable chassis 12 so as to be slidable 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.
[0022]
Engagement teeth 44 are formed on the tip side portions of the left and right lock plates 37. The locking segment gear 45 is attached to both side surfaces of the liquid crystal display panel 26 at the lower end side so as to mesh with the engaging teeth 44. The right segment gear 45 is integrated with a segment gear 28 for rotating the liquid crystal display panel 26. The center of the segment gear 45 coincides with the rotation center of the liquid crystal display panel 26, that is, the axis of the pin 27.
[0023]
A projecting piece 46 is provided on the lower end side portion of the lock plate 37 and on the rear end side thereof, and corresponds to the projecting piece 46 at the edge of the opening 11 of the frame 10 on the lower end side. A locking piece 47 is continuously provided at the portion by bending (see FIG. 5).
[0024]
Next, a drawing operation of the retractable display device having 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 side by side on the audio operation panel 33 as shown in FIG. It has become.
[0025]
When the liquid crystal display panel 26 is used, the movable chassis 12 is pulled forward with respect to the frame 10 as shown in FIGS. This drawing operation may be performed by a motor via a rack and a pinion, or may be pulled forward by holding the part of the operation panel 20 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.
[0026]
In the state shown in FIG. 4, the lock plates 37 provided on both side surfaces of the movable chassis 12 are slid forward by a return spring 40, and the engagement teeth 44 on the tip side thereof are liquid crystal display panels. It is in a state of being engaged with 26 locking segment gears 45. That is, in the retracted state, the engagement teeth 44 of the lock plate 37 and the segment gear 45 are engaged.
[0027]
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. 5, immediately before the completion of the forward sliding operation of the movable chassis 12. The protrusion 46 provided on the rear end side of the lock plate 37 abuts on the locking piece 47 of the frame 10. Accordingly, the lock plate 37 can no longer move forward, and the lock plate 37 is moved backward relative to the movable chassis 12 against the return spring 40. Accordingly, the engaging teeth 44 of the lock plate 37 are disengaged from the locking segment gear 45. That is, when the movable chassis 12 is completely pulled out from the frame 10, the liquid crystal display panel 26 is unlocked.
[0028]
In a state where the movable chassis 12 is completely pulled out from the frame 10, the motor 29 is driven as shown in FIG. 7 and the segment gear 28 is driven by the pinion 30. The liquid crystal display panel 26 is unlocked by the lock plate 37 as described above. For this purpose, the liquid crystal display panel 26 to which the segment gear 28 is attached is counterclockwise about the pin 27 as shown in FIG. As a result, the liquid crystal display panel 26 becomes almost upright. At this time, the tilt of the liquid crystal display panel 26 may be adjusted as necessary to obtain an oblique angle as shown by a two-dot chain line in FIG.
[0029]
Thereafter, as shown in FIG. 8, the movable chassis 12 is again drawn into the frame 10. 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 pulled in until it is located slightly forward. In this state, the liquid crystal display panel 26 performs a predetermined display. At this time, the liquid crystal display panel 26 may be tilted slightly rearward as indicated by a chain line as described above.
[0030]
When the movable chassis 12 is moved so as to be drawn back into the frame 10 as described above, the protruding piece 40 of the lock plate 37 attached to the movable chassis 12 is separated from the locking piece 47 of the frame 10 along with this moving operation. To do. 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, as shown in FIG. 8, the liquid crystal display panel 26 is locked by the lock plate 37 in the state of being moved to the use position.
[0031]
When the liquid crystal display panel 26 is housed, the reverse operation is performed. That is, as shown in FIG. 8, the movable chassis 12 supporting the substantially upright liquid crystal display panel 26 is pulled out again as shown in FIG. Along with this operation, the lock by the lock plate 37 is released. Therefore, in this state, if the liquid crystal display panel 26 is rotated clockwise around the pin 27 by the motor 29 via the pinion 30 and the segment gear 28 as shown in FIGS. Good. Thereafter, the movable chassis 12 may be retracted into the frame 10. As a result, the storage state shown in FIG. 4 is obtained.
[0032]
As described above, in the retractable display device according to the present embodiment, when the movable chassis 12 is completely pulled out as shown in FIG. 5, the protruding piece 46 of the lock plate 37 comes into contact with the engaging piece 47 of the frame 10. As a result, the engaging teeth 44 of the lock plate 37 are disengaged from the locking segment gears 45 on both sides of the liquid crystal display panel 26. Therefore, in this state, the angle adjustment may be performed by pulling out the liquid crystal display panel 26 through the segment gear 28 by the motor 29 as shown in FIG. Then, after the angle is set, the movable chassis 12 is slid again in the storing direction, so that the protruding piece 46 of the lock plate 37 is detached from the locking piece 47. For this reason, the liquid crystal display panel 26 is fixed at an arbitrary angle. As a result, the shake is prevented.
[0033]
Further, since the liquid crystal display panel 26 is locked by the lock plate 37 in the use state shown in FIG. 8, vibration is not transmitted to the shaft of the motor 29 through the segment gear 28 of the liquid crystal display panel 26. As a result, the motor 29 is protected.
[0034]
According to such a storage-type display device, the liquid crystal display panel 26 is not particularly shaken by vibrations caused by traveling of the vehicle, and the screen is easily viewed. Further, the liquid crystal display panel 26 drawn out can be locked by the lock plate 37 with the angle adjusted to an arbitrary angle, and the angle can be adjusted arbitrarily.
[0035]
The lock plate 37 can be released by moving the lock plate 37 rearward by the knob 41 even when the movable chassis 12 is not completely pulled out. Further, since the tilt angle of the liquid crystal display panel 26 can be set finely, the merchantability can be improved. In addition, the vibration of the liquid crystal display panel 26 is not transmitted to the motor 29 via the segment gear 28, thereby protecting the motor 29.
[0036]
【The invention's effect】
As described above, the present invention provides a frame, a movable chassis that is slidably supported by the frame in the front-rear direction, a display panel that is rotatably attached to the front end side of the movable chassis, and a display panel that is attached to the display panel. And an engagement member that rotates together with the display panel about the rotation axis of the display panel, and is slidably attached to the movable chassis, and is attached to the display panel side so as to engage with the engagement member . The display panel is pulled out by pulling out the movable chassis from the frame and rotating the display panel forward, and the movable chassis is retracted after the display panel is pulled out. In this state, the movement of the display panel in the rotational direction is prevented by the lock plate engaged with the engagement member .
[0037]
Therefore, the shake of the display panel is prevented by the lock plate in the use state, so that it is possible to eliminate the difficulty in viewing the screen due to the vibration.
[0038]
The engaging member is composed of a segment gear, and an engaging tooth is provided at the tip of the lock plate , and the segment gear that engages with the engaging tooth is located together with the display panel around the rotation axis of the display panel. According to the configuration that is attached to the side surface of the display panel so as to rotate, so that movement in the rotational direction of the display panel is prevented by meshing engagement teeth of the lock plate to the segment gear.
[0039]
The lock plate is provided with a projecting piece, and when the movable chassis is pulled out to the maximum stroke, the projecting piece comes into contact with the engaging portion of the frame and the forward stroke is restricted, and the locking operation by the lock plate is prevented. According to such a configuration, when the movable chassis is pulled out by the maximum stroke, the lock by the lock plate is automatically released.
[0040]
According to the configuration in which the display panel is rotated forward while the movable chassis is pulled out to the maximum stroke, the display panel can be rotated forward and pulled out in the unlocked state. become.
[0041]
After the display panel is pulled out, it is rotated forward and the movable chassis is moved backward again to move the display panel to the operating position. According to the configuration in which the display panel is locked, when the display panel is moved to the use position, the display panel is automatically locked by the lock plate.
[0042]
According to the configuration in which the lock plate is provided with a knob and the lock by the lock plate is manually released by operating this knob, the lock can be arbitrarily released by operating the knob. .
[Brief description of the drawings]
FIG. 1 is an external perspective view of a storage type display device in a storage state.
FIG. 2 is an external perspective view of the drawer 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 in a stored state.
FIG. 5 is a vertical cross-sectional view in a pulled-out state.
FIG. 6 is a plan view of the same.
FIG. 7 is a longitudinal sectional view of a state in which 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]
DESCRIPTION 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, 23 ... Disc insertion slot, 26 ... LCD panel, 27 ... Pin, 28 ... Segment gear, 29 ... Motor, 30 ... Pinion, 33 ... Audio operation panel, 37 ... Lock Plate, 38 ... Long hole, 39 ... Pin, 40 ... Return spring, 41 ... Knob, 44 ... Engaging tooth, 45 ... Segment gear for locking, 46 ... Projection piece, 47 ... Locking Fragment

Claims (6)

Frame,
A movable chassis that is slidably supported in the longitudinal direction on the frame;
A display panel rotatably attached to the front end side of the movable chassis;
An engagement member attached to the display panel and rotating together with the display panel about a rotation axis of the display panel;
A lock plate slidably attached to the movable chassis and biased toward the display panel so as to engage with the engagement member ;
The display panel is pulled out by pulling the movable chassis out of the frame and rotating the display panel forward, and the movable chassis is retracted after the display panel is pulled out And a movement of the display panel in the rotational direction is blocked by the lock plate engaged with the engagement member . It said engaging member is composed of the segment gear, moreover with engagement teeth are provided at the distal end portion of the locking plate, wherein the segment gear which engages with the engaging tooth is about the rotation axis of the display panel 2. The retractable display device according to claim 1, wherein the retractable display device is attached to a side surface of the display panel so as to rotate together with the display panel .   When the lock plate is provided with a projecting piece, and the movable chassis is pulled out to the maximum stroke, the projecting piece comes into contact with the engaging portion of the frame and the forward stroke is restricted, and the locking operation by the lock plate is performed. The retractable display device according to claim 1, wherein the storage-type display device 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 pulled out a maximum stroke. After the display panel is pulled out, the display panel is moved to a use position by rotating the movable chassis backward by rotating the display panel, and the blocking operation is released by the backward movement of the movable chassis. 4. The retractable display device according to claim 3, wherein the display panel is locked by a lock plate.   4. The retractable display device according to claim 3, wherein a knob is provided on the lock plate, and the lock by the lock plate is manually released by operating the knob.

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