JPH09179503A - Elevator mechanism for moving display board - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it possible to raise/lower a display board directly and with small power by physical power of a worker with simple constitution by balancing projection pressing force of respective gas shock cylinders with weight of the display board main body. SOLUTION: A guide groove is opened and formed on an inner side surface of a side frame 16 along the vertical direction, and a connection block 30 fixedly arranged on the both side lower parts of the display board main body 18 is projected into the side frame 16 through the guide groove. Further, the gas shock cylinder 32 is arranged on the inner wall of the side frame 16 opposite to the guide and along it, and its upper part and lower end are fixed by fixing brackets 34, 36. Then, the total of the pressing force of both side gas shock cylinders 32 is set slightly smallish than the own weight of the display board main body 18, and thus, the load in the descendant direction is applied to the display board main body 18 by its difference, and these load are supported by respective stoppers 54, 56.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevating mechanism for a large mobile display panel that can be moved up and down by a simple operation.

[0002]

2. Description of the Related Art Large display panels for displaying the time and other information in front of the public in halls and other large rooms are mostly in the form of a panel such as a wall-mounted type. It is supposed to be impossible. In order to make the display board movable to the room, for example, if casters 2 and the like are arranged on the bottom surface of the display board 1 as shown in FIG. 4A, they can be carried while pushing on the floor. On the other hand, in the large display panel of this kind, it is natural that the display position must be kept above the line of sight of a person in order to confirm this display content at a glance at any position in the room. meaningless. Therefore, in order to cope with such a demand, the main body portion of the display board 1 is installed and fixed on the support base 3 on which the casters 2 are arranged at the bottom, and the support base 3 is fixed.
It is necessary to transport the whole.

[0003]

However, the total height H of the display panel 1 must be at least 180 cm or more in order to increase the height, which is a problem when moving the display panel between the rooms. That is, there is instability due to the inability to pass by the upper end hitting an obstacle such as a door, or the center of gravity becoming high, which causes a problem in transportation safety. Therefore,
In the case of such a configuration, the support base 3 is moved every time it moves.
The main body part must be separated from and transferred separately.
Since the weight of the main body is 80 to 100 kg, it cannot be covered by the power of one worker and must be raised and lowered with the help of several workers each time. There was trouble such as removal. As a structure for eliminating this kind of trouble, FIG.
As shown in (b), it is conceivable that a mechanism that can be raised and lowered with respect to the support base 3 is adopted, and the handle 4 provided on the side surface of the support base 3 is rotated to raise and lower the main body portion of the display board 1. , Mechanical parts such as gears and chains, and setting of a boost mechanism are mechanically troublesome, and there is a concern that the device itself may become large in size for practical use. The present invention solves the above problems and provides a lifting mechanism for a movable display panel that has a simple structure and that can be raised and lowered directly by a single worker and with a small force. Is intended.

[0004]

SUMMARY OF THE INVENTION According to the present invention, a base plate movable on a floor surface, a pair of side frames disposed on the left and right of the base plate, and both side frames guided so that both side portions can be raised and lowered, and In a movable display panel having a display panel main body having a front surface as a display surface, a connecting block provided on the lower side surface of the display panel main body is opened inside the side frames along the height direction. A guide groove, a gas shock cylinder fixedly arranged inside the side frame in parallel with the guide groove, a pulley rotatably supported at the tip of a plunger protruding inward from the upper end of the gas shock cylinder, and one end To the connecting block and the other end to a fixed position in the side frame, and a wire suspended from the pulley. By was balancing the weight of the protruding biasing force of Kkushirinda and the display panel body, and movable moving distance of 2 times the cylinder stroke can be performed easily pulled and pulled operated by human power.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. FIG. 1 shows the overall structure of a mobile display panel according to the present invention. The movable display panel 10 in the figure includes a base plate 12 in which four transportation legs 14 are horizontally projected in the front, rear, left and right,
A pair of side frames 16 which are erected on the left and right of the upper portion of the base plate 12 and whose lower half is inclined toward the outer side and whose inner sides are vertical surfaces, and in which both side portions are sandwiched inside the both side frames 16. A display board body 18 is provided so as to be vertically movable along these. Casters 20 are arranged on the lower surface of each leg portion 14 so as to be able to travel on the floor surface, and a screw type adjusting leg 22 for horizontal adjustment at the time of fixed installation is provided on the lower end surface of the leg portion 14. There is.
Front and rear sides of the side frames 16 are provided with grips 24 for cues when the display panel 10 is transferred. Further, the display panel main body 18 has a large number of rows of display windows as a display surface 18a formed in three stages on the upper front surface thereof, and a display mechanism (not shown) is mounted therein. By pulling up the protruding handle 26, it is possible to perform a raising / lowering operation by human power, and it is possible to raise from the lowest position shown by the solid line in FIG. 1 to the height position shown by the imaginary line by the pulling operation.

3 and 4 show details of the lifting mechanism arranged in each side frame 16. In each drawing, guide grooves 28 are formed in the inner wall surface of the side frame 16 along the vertical direction, and connecting blocks 30 fixedly arranged on the lower portions of both sides of the display panel body 18 are guided through the guide grooves 28. It is projected inside. Further, a gas shock cylinder 32 is arranged on the inner wall of the side frame 16 so as to face the guide groove 28 and along the guide groove 28, and the upper and lower ends thereof are fixed by fixing brackets 34 and 36. As shown enlarged in part of each figure,
An angle bracket 40 is integrated with the tip of a cylinder rod 38 protruding from the upper end of the gas shock cylinder 32, and a pair of upper and lower pulleys 42 is rotatably attached to the vertical surface of the bracket 40.

A wire 44 is movably suspended between the pulleys 42. One end of the wire 44 is connected to a fixing member 46 protruding above the protruding end of the connecting block 30. Further, the other end side is connected to a fixing metal fitting 50 protruding above the fixing block 48 provided on the rear surface of the upper bracket 34 of the gas cylinder 32. The lower pulley 42 receives the load of the display panel body 18 through the wire 44, and the upper pulley 42 sandwiches the upper portion of the wire 44 and functions as a fall prevention member. Further, on the inner outer wall surface of the side frame 16, that is, on the side facing the display panel main body 18, a pair of double dovetail groove-shaped guide rails (shown by broken lines in FIG. 3) 52 are arranged along the vertical direction thereof. One of the dovetail grooves of each guide rail 52 is fixed to the side frame 16 side, and the other is fixed to the display panel body 18 side so that they can slide relatively. Each of the guide rails 52 is provided with an upper limit and a lower limit stopper 54 for regulating the ascending and descending positions of the display panel body 18 and a flexible stopper 56 for regulating the lower and lower limit positions thereof. There is. Each of them is a screw-in type as shown in an enlarged manner in a part of FIG. 2, and by being screwed into the guide rail 52, the sliding of the guide rail 52 is regulated, and the display board is set at an arbitrary height position. The main body 18 is fixed. In the above configuration, the total of the urging pressures of the gas shock cylinders 32 on both sides is set to be slightly smaller than the own weight of the display board body 18, and therefore the display board body 18 receives a downward load due to the difference. These loads are supported by the stoppers 54 and 56.

From the lower position shown by the solid line in FIG.
8 can be lifted by removing the stopper 54 to make it movable, and then manually pulling the grip 26,
The cylinder rod 38, which is slackened by the wire 44 and is in a retracted state due to the load, projects upward due to the projecting pressure, and applies the projecting pressure of the gas cylinder 32 in addition to the human power,
By this biasing, even when the display panel body 18 itself has a considerable load of 80 to 100 kg, for example, it can be easily pulled up manually. This lifting stroke corresponds to the length of the wire 44 and can be lifted up to about twice the stroke of the cylinder rod 38. At the raised position, the stoppers 54, 5
If 6 is pulled up to the lower surface side of the display board body 18 and fixed there, it will be locked at the height position shown by the imaginary line in FIG. Further, even when descending, by performing the operation in the reverse order of the above, the original low position can be achieved.

[0009]

As described above, in the lifting mechanism for the movable display panel according to the present invention, the protrusion urging force of each gas shock cylinder and the weight of the display panel main body are balanced to each other. If an external force corresponding to the balance of is applied, the pulling and pulling operations can be easily performed by human power, so the lifting work is easy, and at the time of transfer, the center of gravity can be lowered for transfer, Transportation safety can be secured. In addition, since the structure is a mechanism in which a gas shock cylinder, a pulley, and a wire are interlocked with each other, there is an advantage that they can be made simple and compact.

[Brief description of the drawings]

FIG. 1 is a schematic view showing the outer appearance of a mobile display panel according to the present invention.

FIG. 2 is a partially cutaway front sectional view showing a detailed structure of a lifting mechanism in the display board.

FIG. 3 is a side sectional view showing details of a lifting mechanism in the display board.

4 (a) and 4 (b) are explanatory views showing problems when the display panel is of a movable type.

[Explanation of symbols]

 10 Mobile Display Panel 12 Base Plate 16 Side Frame 18 Display Panel Main Body 28 Guide Groove 30 Connecting Block 32 Gas Shock Cylinder 38 Cylinder Rod 42 Pulley 44 Wire

Claims (1)

[Claims] 1. A base plate movable on a floor surface,
A movable display panel comprising a pair of side frames arranged on the left and right of a base plate, and a display panel main body whose both sides are vertically guided by both side frames and whose front surface is a display surface. A guide groove, which is opened inside in the height direction along the height direction and which projects a connecting block provided on the lower side surface of the display panel body, and a gas shock cylinder fixedly arranged inside the side frame in parallel with the guide groove. When,
A pulley rotatably supported at the tip of a plunger protruding inward and outward from the upper end of the gas shock cylinder, one end connected to the connection block, the other end connected to a fixed position in the side frame, and suspended on the pulley. A lifting mechanism for a movable display panel, characterized in that the protrusion biasing force of each gas shock cylinder and the weight of the display panel body are balanced.