JPS6349012Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a screen storage structure in which the lower end of the screen is retracted and flipped up to the ceiling when the screen is stored.

In recent years, more and more sightseeing buses have been equipped with televisions as part of their services to passengers, and in particular, some have been equipped with video projectors with large screens.

As shown in Figure 1, which shows the schematic structure of a bus equipped with this video projector, the video projector 1 is fixed to the ceiling 3 of the bus 2, and the screen 4 is mounted on the ceiling 3 in front of the passenger seats 5 in the front row. It will be suspended in the center. Generally, in a limited space such as a bus, when the video projector 1 is not used, it is necessary to raise the screen 4 to the ceiling 3 in order to ensure passage of passengers and forward visibility.

Conventionally, as a storage structure for the screen 4, the ceiling 3 and the screen 4 are connected via a hinge, and the screen 4 is rotated about the hinge so as to be raised to the ceiling 4. For this reason, the area within the rotation radius of the screen 4 becomes a dead space, which becomes a major constraint in setting the interior, seats, and cabin layout, and in some cases, it becomes a problem that affects the passenger capacity.
This is a disadvantage when installing.

Based on this knowledge, the present invention aims to provide a storage structure that can reduce the rotation radius of the screen as much as possible and reduce restrictions on cabin layout and passenger capacity.

The structure of the screen storage structure of the present invention that achieves this purpose is that the screen is suspended from the ceiling and flipped up to the ceiling in the stored state, and the lower end is pivoted to the rear side of the screen. and a first suspension link whose upper end is pivotally attached to the ceiling behind the screen, and a lower end of the first suspension link to the rear side of the screen below the pivoting part of the lower end of the first suspension link. a second suspension link whose lower end is pivoted and whose upper end is pivoted to the ceiling in front of the screen; A lower end portion is pivotally attached to the front side of the screen, and an upper end portion is pivotally attached to the ceiling in front of the pivoting portion of the upper end portion of the second suspension link, so that elastic force is always applied in the direction of extension. a damper, and a stopper projecting from the upper end of the screen and projecting from the ceiling between the pivoting portions at the upper ends of the first and second suspension links; and a positioning block that prevents the screen from being displaced toward the pivoting part of the upper end of the second suspension link and holds the screen substantially perpendicular to the ceiling. It is.

Therefore, according to the present invention, when the screen is retracted, the lower end of the screen is retracted and flipped upward, making it possible to further reduce the dead space in front of the screen, thereby reducing restrictions on cabin layout and passenger capacity. obtain. In addition, when the screen is stored, a force is applied to the screen by the damper to push it toward the ceiling, and furthermore, when the screen is in use, the damper presses the screen so that the positioning block presses against the stopper. At the end of rotation of these screens, there is no fear that the screen will shift its position due to vibrations of the vehicle body, etc., and it is possible to provide a screen that is safe and easy to see.

Hereinafter, an embodiment of the screen storage structure according to the present invention will be described in detail with reference to FIG. 2, which shows its schematic structure, and FIG. 3, which shows its storage state.

A pair of left and right brackets 12 are fixed to the ceiling 11, and on the sides of the screen 13 located between the brackets 12, when the screen 13 is erected almost vertically, this screen 1
The lower ends of the pair of left and right first suspension links 14 are respectively pivotally connected to the rear side of the screen 13 via brackets 15, and the lower ends of the left and right first suspension links 14 are respectively pivotally connected to the rear side of the screen 13 through the brackets 15. On the side, there is a bracket 12 in front of the screen 13.
A pair of left and right second suspension links 1 whose upper ends are pivotally connected to
The lower end portions of the screens 6 are pivotally connected to brackets 17 that project from the side and rear sides of the screen 13, respectively. Further, below these brackets 17, lower end portions of a pair of left and right gas dampers 18 whose upper ends are pivotally connected to the bracket 12 on the front side of the upper end pivot portion of the second suspension link 16 are located on the sides of the screen 13. Each of these gas dampers 18 is pivotally connected to a bracket 19 projecting from the front side, and has a spring force such that its piston rod 20 is always pushed out. Further, the bracket 12 between the upper end of the first suspension link 14 and the upper end of the second suspension link 16 is provided with a pair of positioning blocks 21 protruding from both left and right ends of the upper end of the screen 13. A pair of left and right stoppers 22 are each fixedly provided to position the screen 13 substantially perpendicularly to the ceiling 11 and to prevent the upper end of the screen 13 from moving forward. In this embodiment, in order to maintain the stored state when the screen 13 is stored,
In consideration of safety, a lock pawl 24 is provided at the lower end of the screen 13 so as to be able to engage freely with a catch 23 attached to the ceiling 11, but these do not necessarily need to be provided.

In this embodiment, the upper ends of the first suspension link 14, the second suspension link 16, and the gas damper 18 are each pivoted to the bracket 12, but these brackets 12 are omitted and they are pivoted directly to the ceiling 11. In this case, the stopper 22 must also protrude directly from the ceiling. Also, the first suspension link 1
4, the second suspension link 16, the gas damper 18, etc., do not need to be provided in pairs on the left and right sides, and may be installed only on at least one of the left and right sides. Further, although the gas damper 18 is used as the damper in this embodiment, any structure may be used as long as the damper has a spring force that constantly extends in a straight line.

Therefore, when the gas damper 18 is tilted downward, the spring force automatically moves the screen 1.
3 is pushed down, and the positioning block 21 is held in contact with the stopper 22. but,
A handle 2 protruding from the rear of the lower end of the screen 13
5 and push the screen 13 upward against the spring force of the gas damper 18, the upper end of the screen 13 will rotate backward as shown by the two-dot chain line in FIG. Screen 13
The locus of the lower end is as shown by the dashed line in FIG. 2, and the dead space in front of the screen 13 can be set small. Therefore, it is possible to bring the passenger 27 seated on the seat 26 closer to the screen 13 than in the conventional case. When the screen 13 is stored, the gas damper 18 tilts upward and tries to press the screen 13 against the ceiling 11. Therefore, by increasing the spring force of the gas damper 18, the screen 13 will not sag due to its own weight. There will be no fear.

Although the present invention is intended for screens, it can of course also be applied to doors that flip upwards.

[Brief explanation of the drawing]

Fig. 1 is a conceptual diagram showing the general structure of a bus equipped with a video projector, Fig. 2 is a mechanical principle diagram showing an outline of an embodiment of the screen storage structure according to the present invention, and Fig. 3 shows its storage state. This is a conceptual diagram showing the symbols in the figure: 11 is the ceiling, 12, 15, 17, 19 are the brackets, 13 is the screen, 14 is the first suspension link, 16 is the second suspension link, 18 is the gas damper,
21 is a positioning block, 22 is a stopper, 26
is a seat, and 27 is a passenger.

Claims (1)

[Scope of utility model registration request] A screen that is suspended from the ceiling and flipped up to the ceiling in a stored state, the lower end of which is pivoted to the back of the screen, and the upper end of which is pivoted to the ceiling behind the screen. a first suspension link, a lower end of which is pivotally connected to the rear side of the screen below the pivoting part of the lower end of the first suspension link, and an upper end of which is pivotally connected to the ceiling in front of the screen; a second suspension link that is pivotally connected to the screen; a damper that is pivotally connected to the ceiling in front of the pivot point at the upper end of the second suspension link and is given an elastic force in a direction that always extends; The upper end of the screen is engaged with a stopper protruding from the ceiling between the upper end pivot parts of the second suspension links, so that the upper end of the screen is on the side of the upper end pivot parts of the second suspension links. 1. A screen storage structure comprising: a positioning block that prevents the screen from being displaced and holds the screen substantially perpendicular to the ceiling.