JPH0648550Y2 - In-vehicle display device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a vehicle-mounted display device used, for example, at an outdoor event.

[Outline of device]

This invention is, for example, in a vehicle-mounted display device used for an outdoor event, by mounting the large display device on a vehicle and moving the large display device upward at the time of display.
The display screen is easy to see and the stability is ensured when driving.

[Prior Art] There is known a large-sized display device in which cells each composed of a light-emitting element in which RGB3 primary color picture elements are integrated are two-dimensionally arranged on a large-sized display screen. Unlike a projector that irradiates a screen with a shadow image, this display device has a light emitting element arranged in each cell, so that it is possible to reproduce a clear image with sufficient brightness even outdoors.

By installing such a display device in an outdoor venue for an outdoor event or the like, it is possible to display an event at the venue or to display a venue guide.

By the way, since such a display device is very large, it cannot be easily transported or installed. In the case of an outdoor event, the preparation period is often insufficient, and during such a short period of time, it is often very difficult to transport a large display device and install it.

Therefore, it is conceivable to mount such a large-sized display device on a vehicle so that video reproduction can be performed while the display device is mounted on the vehicle. By doing so, the display device can be transported by vehicle and installed in the venue as it is.

[Problems to be solved by the invention]

When installing a large display device outdoors at an outdoor event, etc., in order to allow the audience to see the display screen over a wide area of the venue, make the display screen of the display device large and display it at a somewhat high position. It is desirable to configure the device. However, when the large-sized display device is mounted on the vehicle for reproduction as described above, the size and height of the display device are limited due to traveling of the vehicle. In other words, according to the Road Traffic Act, the vehicle that can move on the road is 12 m in length and 3.8 in height.
m, overall width 2.5m, total weight 20t.

In order to make the display screen large, it is advantageous to use a low floor type trailer as a vehicle on which the display device is mounted. This is because the low-floor trailer has a lower floor, so that it can provide a wider display screen with a limited height than other trailers that are not low-floor.

However, when a low floor type trailer is used as a vehicle on which the display device is mounted, the installation position of the display device becomes low,
There is a problem that it becomes difficult to see the display screen in a wide area of the venue.

Therefore, an object of the present invention is to provide a vehicle-mounted display device capable of viewing the display screen from a wide range during reproduction.

When a display device is placed on a vehicle and an image is played back on this display device, it is better to place the display screen near one side edge of the vehicle so that the playback screen can be seen closer to the screen and The vehicle to be placed does not catch the eye and is visually preferable. However, if a heavy display screen is arranged on one side edge of the vehicle, the center of gravity of the vehicle is biased to one side, and there is a problem that stability deteriorates. .

Therefore, another object of the present invention is to provide a vehicle-mounted display device in which the center of gravity is stable during transportation and the display screen can be arranged at a visually preferable position during reproduction.

[Means for solving problems]

This invention is an on-vehicle display device in which the large display device 5 is placed on the vehicle 2 and the large display device 5 is moved upward during display.

[Action]

The display unit 5 is lowered to the floor surface of the trailer 2 when moving. At the time of broadcasting, it is lifted up by the hydraulic cylinder 21 and locked by the hook 25. In this way, since the display unit 5 is lifted upward during broadcasting, the screen displayed on the display unit 5 can be viewed from a wide range.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 shows an embodiment of this invention. In FIG. 1, 1 is a tractor and 2 is a trailer. The tractor 1 and the trailer 2 are connected. The trailer 2 is towed by the tractor 1 and moved to the intended installation location. A low floor trailer is used as the trailer 2. As described above, the total length when the tractor 1 and the trailer 2 are connected is set to 12 m or less, which is specified by the Road Traffic Law.

As shown in FIGS. 2 and 3, a compartment 3 is provided in the front part of the trailer 2, and a compartment 4 is provided in the rear part of the trailer 2. A display unit 5 is arranged between the compartment 3 and the compartment 4.

Compartment 3 is an operating room. In this compartment 3, various broadcasting devices for controlling the display unit 5 are arranged. The operating worker stands by in this compartment 3 and operates the screen displayed on the display unit 5.

Compartment 4 is a power generation room. A generator is installed in this compartment 4. In the field, commercial power is often not available. In such a case, electric power for displaying an image on the display unit 5 is generated by the generator of the compartment 4. When commercial power is available, the generator in compartment 4 is not used and commercial power is used.

The display unit 5 is a display screen in which light emitting elements in which RGB3 primary color picture elements are integrated are arranged in a two-dimensional array. An image is displayed on the display unit 5 by operating the broadcasting device in the compartment 3. This display unit 5
In this way, since each cell is provided with the light emitting element, the brightness is sufficient even outdoors and a clear image can be reproduced.

FIG. 1 shows a state at the time of broadcasting. Display unit 5
As shown in FIG. 1, is moved and supported upward during broadcasting. When moving, the display unit 5 is lowered to the floor surface of the trailer 2. Display unit 5 on the trailer 2
The support device 6 (FIG. 2) for installing the display unit 5 is provided with a lift mechanism for lifting the display unit 5 upward and a lock mechanism for supporting the display unit 5 upward. .

When moving, as shown in FIGS. 2 and 3, the display unit 5 is lowered to the floor surface of the trailer 2 and the wings 7 are closed. The hinge portion that opens and closes the wing 7 is provided with a hydraulic cylinder (not shown) that opens and closes the wing 7. When the display unit 5 is lifted,
As shown by the chain double-dashed line in FIG. 2, the display unit 5
Is far from the center. When the display unit 5 is lowered, the display unit 5 approaches the center. Therefore, the center of gravity of the trailer 2 is stable. Thus, when moving, the display unit 5 is lowered and the wings 7 are closed. The height at this time is 3.8 m or less, which is specified by the Road Traffic Law. Therefore, there is no problem in traveling.

As described above, the supporting device 6 that lowers the display unit 5 when moving and raises and supports it when broadcasting is shown in FIGS.
It is configured as shown in the figure.

In FIGS. 4 and 5, 11 is a support base. The support base 11 includes a vertical frame 12 and a horizontal frame.
It is composed of 13 and L-shaped. This support base
11 is mounted on the mounting table of the trailer 2 via the cushioning material 14.

One ends of the arms 15 and 16 are rotatably attached to the support base 11. The other ends of the arms 15 and 16 are rotatably attached to the display unit supporting board 17. The display unit support substrate 17 is composed of a vertical frame 18 and a horizontal frame 19. Display unit support plate
The display unit 5 is attached to the stand 17 via the stand 20.

At the time of broadcasting, the hydraulic cinder 21 pushes up the arm 22 and the arm 16 fixed to the same rotation axis as the arm 22.
Is rotated in the direction indicated by arrow A. As a result, as shown in FIG. 5, the display unit support substrate 17 is moved upward, and the display unit 5 is moved upward.

When the display unit 5 is moved upward, the hydraulic cylinder
The hook 25 is moved by the lever 23 via the lever 24 in the direction indicated by the arrow B. Thereby, as shown in FIG. 5, the hook 25 is engaged with the lower edge of the display unit supporting board 17 and locked.

At the time of movement, the engagement state between the hook 25 and the display unit supporting board 17 is released by the hydraulic cylinder 23, and the display unit 5 is moved downward by the hydraulic cylinder 21.

Thus, in this embodiment, the display unit 5 is moved up and down by using the parallel link mechanism.
For this reason, when the display unit 5 is located below, the display unit 5 is located more than when the display unit 5 is located above.
Is located near the center. This maintains the stability of the vehicle when moving.

The vertical movement mechanism of the display unit 5 is not limited to the parallel ink mechanism, and another movement mechanism such as a chain drive may be used.

[Effect of device]

According to this invention, the display unit 5 is moved upward and supported at the time of broadcasting. Therefore, the screen displayed on the display unit 5 can be viewed from a wide range. When moving, the display unit 5 is lowered to the floor surface of the trailer 2. The height of the trailer 2 at this time is less than or equal to the specified height. Therefore, the problem of vehicle movement is solved.

[Brief description of drawings]

FIG. 1 is a perspective view of an embodiment of the present invention, FIG. 2 and FIG.
FIG. 4 is a plan view and a side view of an embodiment of the present invention,
FIG. 5 and FIG. 5 are side views used for explaining the supporting device in one embodiment of the present invention. Description of main symbols in the drawings 2: Trailer, 5: Display unit, 6: Support device.

Claims (1)

[Scope of utility model registration request] 1. A vehicle-mounted display device in which a large-sized display device is mounted on a vehicle so as to be vertically movable. One end of each is rotatably attached to the back surface of the large-sized display device and the other end is provided on the vehicle. Rotatably attached to a support base, the display surface of the large-sized display device is maintained in a substantially vertical state, and the large-sized display device is attached to the side surface of the vehicle as it moves upward from a position near the mounting base of the vehicle. A plurality of support arms for guiding the large-sized display device so as to move to the side, a first drive mechanism for vertically driving the support arm, and a rotatably attached to the support base. With the large display device moving upward from a position close to the mounting table of the vehicle and moving to the side surface side of the vehicle, the large display device is rotated to the lock position so as to restrict the downward movement of the large display device. Movement That hook and, vehicle display device in which the hook is characterized in that a second drive mechanism for driving the hook to selectively move between a position of the locking position and unlocking.