JPS61153689A - In-vehicle display device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a mobile display device, particularly a vehicle-mounted display device.

It is known that information is provided by displaying characters and images on a display screen formed by arranging a large number of light emitting elements in a matrix, but the present invention particularly provides a method for mounting such a display screen on a vehicle. This invention relates to an improvement of a vehicle-mounted display device that is carried to a place where many people gather and provides video information to the crowd while being mounted on the vehicle.

[Conventional technology]

Such a vehicle-mounted display device uses a large number of light emitting elements, and one display board (upper display board) is inverted on top of the other display board (lower display board), and is used as a two-tiered large screen. The upper display board and the lower display board are connected by a hinge, and the upper display board is designed to be rotated upside down on top of the lower display board by a lifting mechanism including a hydraulic cylinder.

[Problem that the invention seeks to solve]

When in use, the upper display board is rotated around the hinge and placed upside down on top of the lower display board, but if you try to turn the upper display board from the side-by-side position, the corner of the free end of the upper display board will break. collides with the chassis and prevents the vehicle from turning upside down. To avoid this collision, for example, you can use a lifting mechanism to lift the upper display board vertically above the vehicle chassis to create a gap between it and the chassis, and then turn the upper display board upside down. In order to do so, there was a problem in that the design of the lifting mechanism was complicated.

[Means and operations for solving the problems] The object of the present invention is to solve the above problems, to ensure smooth rotation and inversion of the upper display board with a simple structure, and to provide a lower display board fixed to the vehicle chassis. Similarly, the purpose is to transfer the dead weight of the upper display board to the chassis to increase the restoring angle of the vehicle in the lateral direction.

This purpose, according to the present invention, is to make the vertical dimension of the upper display board shorter than the lower display board so as to ensure smooth rotation and inversion, and to provide a pedestal to fill the gap between the chassis and the upper display board. A stopper is provided on the chassis near the edge of the upper display board that is far from the lower display board when both display boards are juxtaposed, and a stopper is provided on the chassis near the end of the upper display board that is close to the lower display board when both display boards are juxtaposed. This is achieved by

When the upper display board is turned upside down during use, there is a gap between the lower side of the upper display board and the chassis, so collision between the lower corner of the upper display board near the lower display board and the chassis is avoided. Furthermore, since this "near corner" of the pedestal is outside the arc trajectory drawn when the pedestal is rotated, a collision between the upper display board and the pedestal is naturally avoided.

This pedestal serves to transfer the weight of the lower display board to the vehicle chassis when it is not in use. In addition, a stopper is provided at a position that abuts the "near corner" so that when the upper display board returns from the inverted position to the rest position, it cooperates with the pedestal to smoothly hold and rest the upper display board on the vehicle chassis. .

〔Example〕

The accompanying drawings show an embodiment of the in-vehicle display device of the present invention.

In the figure, a lower stage display board 1 and an upper stage display board 2, which are formed by arranging a large number of light emitting elements, are placed side by side on a vehicle chassis 4, and the vehicle travels in this state. When using the display device at the destination, the upper display board 2 is lifted by a lifting mechanism using a hydraulic system (
(not shown) to turn it upside down and place it on the lower display board l.
Stack them in layers (see broken line). To ensure smooth rotation and inversion, the vertical dimension of the upper display board is shorter than that of the lower display board, and the upper display board 2 is installed with a pedestal 5 of a height that fills the gap created by this. It is provided on the chassis 4 at the lower corner far from the lower display board 1. Also, a stopper 6 is installed on the chassis 4 near the "near corner" of the upper display board 2.
will be established.

When not in use or when running, the dead weight of the upper display board 2 is transferred to the chassis 4 via the pedestal 5, which eliminates unreasonable loads on the hinge 3 when the pedestal is not present. This prevents the vehicle from moving outward and causing instability of the vehicle.

When the upper display board 2 is turned upside down during use, the pedestal 5 does not hinder the rotation because the pedestal 5 is outside the arcuate locus of the "near corner" of the upper display board 2.

The stopper 6 is arranged on the chassis 4 near the "near corner" of the upper display board 2, and when the upper display board 2 returns from the inverted state to the stationary state, it catches the upper display board 2 and stops it in a fixed position. let The pedestal and stopper are made of hard comb or resin.

- As an example, the gap between the upper display board 2 and the chassis 4 is approximately 20U.

〔effect〕

According to the present invention, smooth rotation and inversion of the upper display board can be achieved with a simple structure, and at the same time, the restoring angle is increased.

Effects such as ensuring that the upper display board stops at a fixed position can be obtained.

[Brief explanation of the drawing]

The attached figure is a schematic rear view of an embodiment of the in-vehicle display device of the present invention. 1... Lower display board 2... Upper display board 3... Hinge 4... Chassis 5... Pedestal 6...・Stotsunoso. Patent Applicant: Toshiba Electric Materials Corporation, Patent Attorney Tatsuo Ito Representative Patent Attorney Tetsuya Ito 6 At L Tsuno

Claims (2)

[Claims] (1) Lower display board consisting of a large number of light emitting elements; Upper display board consisting of a large number of light emitting elements; When not in use, the lower display board and the upper display board are placed side by side; when in use, A hinge that connects the lower display board and the upper display board so that the upper display board can be inverted on top of the lower display board to form a two-tier stack; and when in use, the upper display board can be inverted on top of the lower display board. In the vehicle-mounted display device equipped with a lifting mechanism, the upper display board is shorter in vertical dimension than the lower display board, and a pedestal that fills the gap between the vehicle chassis and the upper display board is used as a base for both display boards. A stopper is provided on the chassis near the end of the upper display board that is far from the lower display board when the display boards are juxtaposed, and a stopper is provided on the chassis near the end of the upper display board that is close to the lower display board when both display boards are juxtaposed. In-vehicle display device. (2) The vehicle-mounted display device according to claim 1, wherein the base and the stopper are made of rubber or resin.