JP4775871B2 - Up-and-down adjustable loading table - Google Patents

Description

[0001]
[Industrial application fields]
This lifting / lowering platform is designed to efficiently use space when placing items that are different in height from items that are already placed on hanging cabinets, cupboards, refrigerator shelves, warehouse shelves, etc. It can also be used as a method for quickly changing the position of a table, chair, step board, etc.
[0002]
[Prior art]
For example, in a refrigerator, a beam is placed in the middle of the depth and the worm and the worm are turned up and down by turning the worm. On the table, the lock mechanism is released and the table is moved up and down directly by hand.
[0003]
[Problems to be solved by the invention]
Turning the worm takes time, and with the method of releasing the lock mechanism, if the table is heavy, the table will drop at the moment when the lock is released, and there will be a danger of the lock being released, and the operation will be two operations, unlocking and moving the table up and down. It was difficult and difficult to set in place.
[0004]
[Means for Solving the Problems]
In the present invention, a leg having a spiral groove with a small pitch angle and a member corresponding thereto are provided, and the member is provided with a sprocket or a pulley, and a belt is stretched around the base so that the leg is moved up and down.
[0005]
[Action]
Due to the above structure, since the pitch angle of the spiral groove is small, the lock mechanism is not required, so the operation is simple, the operation distance can be long, the operation force is light, and the linear operation can be performed quickly. .
[0006]
【Example】
FIG. 1 shows the entire table, and FIG. 2 shows an enlarged view of the mechanism. The sprocket 1 having the spiral groove 1a is fitted to the foot plate 2 having the opposing spiral groove, and the belt 3 is hung on the sprocket 1. One end of the belt 3 is locked to the slide 4 provided with the handle portion 4a, and the other end is locked to the tension member 6 preloaded by the spring 5 when fitted to the slide 4, so that the handle portion 4a is moved. As a result, the foot plate 2 moves up and down. The spring 5 prevents an abnormal force from being applied to the belt 3 due to a difference in thermal expansion due to a temperature change due to a difference between the material of the base 7 and the material of the belt 3.
The belt may be a timing belt, not a hole, or a chain.
[0007]
【The invention's effect】
With the above-described method of moving the spiral groove structure up and down with a belt, the operation distance can be increased by arranging the belt on the outer periphery, and the friction can be reduced only at the four corners, so the operation can be performed lightly.
[Brief description of the drawings]
[Fig. 1] Overall view of the stage [Fig. 2] Enlarged view of the mechanism [Explanation of symbols]
1 Sprocket 1a Spiral part 2 Foot plate 3 Belt 4 Slide 4a Handle part 5 Spring 6 Tension member 7

Claims (1)

  A shaft or cylinder having a spiral groove with a small pitch angle provided rotatably at the four corners of a square mounting table is screwed with a foot plate provided with a spiral groove opposite thereto, and a sprocket or A pulley is provided, a belt is suspended around these sprockets or pulleys, a slide having a handle portion is attached to the belt, and the belt is movable by moving the slide at the handle portion. When the sprocket or pulley is rotated and the shaft or cylinder is rotated, the foot plate moves up and down with respect to the shaft or cylinder, so that the stage is adjusted up and down. Stand.

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