JPS6360394B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a display device that sequentially displays display objects such as posters supported by a frame one after another.

A display device is already known in which a large number of display boards hung vertically are hooked to a chain that circulates at regular intervals and circulated, thereby displaying pictures, diagrams, etc. drawn on the display boards. .

In the known display device, the display board is made of a flexible material such as a synthetic resin sheet or paper, and the upper edge of the display board is supported by a bar, and the bar is moved during the circulation operation. It was gripped by a device and circulated. Supporting a display board made of flexible material with rods has its own advantages, but during circulatory operation, the lower part of the flexible display board may be damaged due to vibrations or external forces. It has the disadvantage that it can get caught up in things such as dirt or get damaged. These drawbacks can be solved by housing the display board in a rigid frame, but since the frame is a plate-like body, it cannot be handled in the same way as the bar on the top of the display board.

In general, a technique for displaying information by circulating the display board is described, for example, in Japanese Patent Publication No. 44-2286. However, in this known technique, the display board is dropped and the dropped display board is lifted up using a lifting hook, which causes problems in engagement between the display board and the lifting hook, and smooth operation is not possible. Otherwise, the display board itself will be damaged.

Therefore, an object of the present invention is to prevent damage to a display object such as a poster housed within a frame.
An object of the present invention is to provide a display device that can be operated smoothly and sequentially.

According to the present invention, in a display device that sequentially displays a plurality of display bodies supported by a frame, there is provided a support that supports the plurality of frames, and a support that moves up and down behind the support to move the frame to the support. A holding rod that feeds the frame from the rear to the support, an operating rod that is pivotally supported by the holding rod and moves up and down in relation to the holding rod to take out the frame from the front of the support, and a frame that is held by the operating rod. It consists of a moving rod that moves the frame to the holding rod.

Therefore, after the display is displayed, the frame body of the display body is held by the operating rod and moves downward, the display body is moved downward from the operating lever to the holding rod by the moving rod, and the holding rod moves upward, At the same time, the operating rod also moves upward. This holding rod feeds the display to the support from the rear of the support. In this way, the operating rod receives the display board from the front of the support, moves downward, and is then fed out to the holding rod at the bottom to insert the display board into the support from the rear of the support, so the operation is smooth. . In particular, since the operating rod and the holding rod are pivoted to each other, they can be operated in perfect conjunction with each other, and the operation of feeding the display body from the operating rod to the holding rod with the moving rod in the lower position can be facilitated.

In this way, the display body circulates smoothly and sequentially, but since the display board is supported by the frame, there is no risk of damage, and the circulation operation is smooth, so it can be used for a long period of time.

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

1 and 2, a display device embodying the present invention includes, for example, a box-shaped main body portion 2 having a display window 1 made of glass, and the main body portion 2 is supported by support legs 26. It is gaining support. A support body 3 having a support surface 3a inclined downward toward the window 1 is fixed in order to position the poster supported by the frame in a place visible from the window 1 in the main body part 2. The tip 3b is hook-shaped and locks the lower end of the poster frame 4 (hereinafter simply referred to as frame). On the other hand, the upper end of the frame 4 supported by the support 3 is supported on both sides by movable hooks 5, which can be rotated about an axis 6 and are supported by a spring 5.
b, the hook tip 5a is always rotated counterclockwise in FIG. 1 to engage the frame 4. As shown in the figure, the lower ends of the plurality of frames 4 are supported by a support 3, and one of the upper ends on the window 1 side is supported by a hook tip 5a in an inclined state so as to fall toward the window 1 side, and the last frame 4n The back surface of the window 1 is constantly pressed against the window 1 by a pressing means 7 such as a leaf spring.

Therefore, the poster housed in the front frame 4 can be seen through the window 1. This frame body 4 is adapted to be moved to the back side of the frame body 4n by a moving device after a certain period of time.

In the illustrated embodiment, the moving device includes a pair of pulleys 11 rotated by a reversible motor 10 provided at the bottom of the box or main body 2.
is provided on the back surface of the main body part 2, and a pair of floating pulleys 12 are also rotatably provided on the upper part of the other main body part 2. A flexible transmission device, for example a belt 13, is wrapped around each of these pulleys 11, 12, and the ends of the belt 13 are respectively supported on the upper and lower ends of a holding rod 14. Therefore, by forward and reverse rotation of the motor 10, the holding rod 14
can be moved up and down. This retaining rod 14
One end of a link 16 is pivotally supported near the lower end via a pin 15, and the other end of the link 16 is supported by a pin 17.
The lower end of the operating rod 18 is pivotally supported via. The upper end 18a of the operating rod 18 is bent into a dogleg shape, and a pin 19 is provided slightly below it.A guide piece 19a is attached to the tip of this pin 19, and this guide piece 19a is attached to the main body. It is designed to be able to move along a guide groove 20 formed on the side of 2.

Now, the holding rod 14 is provided with a protrusion 14a for holding the frame 4a of the poster, and in front of the frame 4a held by the holding rod 14, a moving rod 21 for the frame is attached by a shaft 22. Main body part 2 can be rotated freely
installed on. This moving rod 21 has a spring 23
It is always pulled towards the front. An arm 24 projecting laterally from the moving rod 21 is for moving the moving rod 21 backward against the spring 23. For this purpose, the operating rod 18 has an engaging portion 18b for engaging with this arm 24. When the engaging portion 18b engages the arm 24 as the operating rod 18 moves downward, the movable rod 21 is moved backward, that is, toward the back surface, as shown in FIG. 1, against the spring 23. There is. Further, the operating rod 18 is provided with a holding portion 18c for receiving the frame 4.

A guide leaf spring 25 is provided in the main body 2 for guiding the frame 4 from the operating rod 18 to the holding rod 14 in a manner to be described later.

In the figure, S ₁ and S ₂ are limit switches for controlling the motor, and both are operated by a protrusion 14b provided on the holding rod 14. Switch S ₁ is a motor forward rotation switch, and switch S ₂ is a motor reverse rotation switch. , switch _S2 is provided with a timer and is configured to reverse the motor 10 after a certain period of time.

In operation, it is assumed that each component is now in the position shown in FIG. At this time, the poster housed in the frame 4 closest to the front is being displayed through the window 1, and the frame 4a that has been displayed so far is held by the central guide plate spring 25. This first
In the state shown in the figure, limit switch _S1 is connected to protrusion 14.
Since the motor 10 is engaged with the motor 10, the motor 10 starts normal rotation.

As a result, the holding rod 14 moves upward, and the frame 4a moves upward together with the holding rod 14 with both lower ends supported by the protrusions 14a. At this time, the frame 4a has the holding rod 14 on its back and the front side Since it is supported by the moving rod 21, it will not come off the retaining rod 14.
As the holding rod 14 moves upward, the moving rod 21 moves as described below.
is disengaged from the frame body 4a, but when the moving rod 21 disengages from the frame body 4a, the upper part of the frame body 4a is moved forward by the vertical surface 3c formed integrally with the support body 3. It is supported so that it does not fall in any direction. Now, at the same time as the holding rod 14 moves up, link 1
6, the operating rod 18 is guided by the guide groove 20 and moves upward. When this operating rod 18 moves upward, the moving rod 2
Since the first arm 24 is disengaged from the engaging portion 18b, it pivots forward about the shaft 22 by the action of the spring 23.

When the holding rod 14 reaches the upper end position, the holding rod 14 is pushed down by the action of the pressing means 7 as shown in FIG.
The frame body 4a that was held by the support body 3 is now supported behind the last frame body 4n supported by the support body 3. At the same time, the upper end 18a of the operating rod 18 engages with the hook tip 5a to rotate the hook 5 clockwise against the spring 5b.
8c holds the lower ends of the frame 4 on both sides. Therefore, the front frame 4 is held by the holding rod 18. At this time, the protrusion 14b of the holding rod 14 engages with the switch _S2 , so that the motor 10 starts rotating in reverse after a certain period of time. Meanwhile, the poster housed in the frame 4 is displayed.

When the motor 10 starts to rotate after a certain period of time, the holding rod 14 is lowered, and at the same time the operating rod 18 is lowered while holding the frame 4, and when the lower end of the frame 4 comes into contact with the guide plate spring 25, the frame is released. The lower part of the body 4 is a holding part 18c
, and moves toward the holding rod 14 while being guided by the guide leaf spring 25 . Then, it further descends, and the engaging portion 18b engages with the arm 24 at the lower end position,
Due to the action of the moving rod 21, the upper part of the frame 4 is also moved towards the holding rod 14. In other words, the state shown in FIG. 1 is reached. This operation is repeated below.

As described above, according to the present invention, the holding rod 14 that can be moved up and down by the moving device is provided on the back of the support 3, and the operating rod 18 that can be moved up and down in relation to the holding rod 14 is provided on the front of the support 3. Since the plurality of frames supported by the support body 3 and containing the posters are sequentially moved from the front to the rear, the plurality of posters can be surely displayed one after another. Since the poster is housed in the frame, there is no risk of damaging the poster, and it can operate reliably over a long period of time.

Note that various modifications can be made when implementing the present invention. For example, the device for moving the holding rod 14 can be provided with a rack on the back side of the holding rod 14, and a gear that engages with this rack can be reversibly operated by the motor 10. Further, although the operating rod 18 is tilted to hold the frame, other means may be used to hold the frame.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional side view showing one embodiment of the present invention;
2 is a sectional front view taken along the line - in FIG. 1, and FIG. 3 is a sectional view similar to FIG. 1, showing the holding rod and the operating rod at their upper end positions. 1...Window, 2...Main part, 3...Support, 4,
4a, 4m, 4n...frame housing the poster,
5... Hook, 14... Holding rod, 18... Operating rod, 21... Moving rod.

Claims (1)

[Claims] 1. In a display device that sequentially displays a plurality of display bodies supported by a frame, there is a support that supports the plurality of frames, and a support that moves up and down behind this support to move the frame from the back of the support. a holding rod that is pivotally supported by the holding rod and moves up and down in relation to the holding rod to take out the frame from the front of the support; A display device comprising a moving rod for moving the display device.