JPS6144698Y2 - - Google Patents

Description

[Detailed description of the invention] This invention is a panel for raised floors that has a cloth-like flat surface that makes it possible to easily lift with one hand a panel that forms a raised floor in a computer room, etc., with carpet attached to the surface. relating to lifting equipment.

Panels with carpet attached to the surface are currently used on raised floors in computer rooms and the like. Then, repair the wiring in the space under the floor,
Some of the panels will need to be removed for replacement. To do this, it was necessary to remove one unit panel whose four circumferences were completely surrounded by other panels, so a suction cup was used to lift objects such as PVC tiles. Then, instead of that, a lifting device was developed in which the lifting device and the panel are crimped together by having prongs cut diagonally into the carpet and backing material so that the panel can be easily lifted with one hand (Japanese Utility Model Publication No. 19062/1983). However, this may damage the carpet.

Furthermore, an apparatus has been proposed in which a handle is attached to a pressure bonding plate and a group of hook-shaped pieces provided on the back surface of the pressure bonding plate is pressed to peel off the carpet (Kokoku Publication No. 52-331).

It is true that this device is considered to be effective when the purpose is to remove carpets, but it has extremely inconvenient drawbacks when used for raised floor panels as in this invention.

That is, since the crimping part of this device consists of only one plate, when removing the device from the object after the peeling operation, that is, when releasing the crimped state,
If the object is flexible, such as a carpet, by bending the object, a gap can be created in the crimping portion and the crimping force can be released.

However, when the target object is a raised floor panel with a cloth-like plane, that is, a panel in which a cloth-like material such as a carpet is pasted on the surface of a completely non-flexible substrate such as a calcium silicate plate or a metal plate. , it is impossible to release the pressure by bending the object as in the case of earlier carpets.

Furthermore, in order to lift a panel that weighs around 10 kg each using only the crimp force of the hook-shaped small pieces, it is necessary to increase the crimp force by increasing the crimp surface, which inevitably makes it difficult to remove. .

Therefore, in order to eliminate damage caused by adhesion between the lifting device and the panel, the resin sheet with the hook-shaped small pieces is pasted on the crimping surface of the lifting device, so that the hook-shaped small pieces and the carpet are attached by crimping. I made it. Next, this idea increases the crimping force by making the entire crimping surface consist of the crimping surfaces of a plurality of crimping plates, and also uses the crimping surface of a lifter instead of a raised floor panel that has a non-flexible cloth-like plane. It is bendable for easy removal, and foldable for easy storage.

Next, this invention will be explained with reference to an embodiment of the invention shown in the drawings. Reference numerals 1 and 1' are crimping plates, on the crimping surface 11 of which a resin sheet 2 with a group of hook-shaped small pieces is pasted; A plurality of crimping plates 1, 1' are connected together with a thread 3 on the opposite crimping surface. Of these crimp plates 1 and 1', the crimp plate 1' which is the basic crimp plate is called the basic crimp plate.

Therefore, if you lift this lifter, all the crimp plates 1,
1', 1 form one crimping plane.
In addition, a handle 4 is provided on the opposite crimping surface of the basic crimping plate 1' in the center among the crimping plates 1, 1', 1, and a rotating pressing body is provided on the surface to hold all the crimping surfaces in one plane. 5 is rotatably provided with a tightening screw (butterfly screw) 6. In this embodiment, in order to facilitate and ensure the rotation of the rotary pressing body 5 and the bending between the crimping plates 1, 1', and 1, the rotary pressing body 5 is provided with a rotary knob 7. A bending knob 8 is provided protruding from the crimp plates 1,1. Reference numeral 9 denotes a threaded rod protruding from the opposite surface of the basic pressure bonding plate 1', into which a butterfly screw 6 is screwed.

Since this invention is constructed as described above, when the crimp plates 1, 1', 1 are opened, each crimp surface 11,
11, 11 form one crimp surface. Thereupon, the rotary pressing body 5 is rotated so as to restrain each crimp plate 1, 1', 1, and the butterfly screw 6 is tightened. In this way, the crimping surfaces 11, 11', 11 are crimped to the cloth-like plane of the object to be lifted, all the crimping surfaces and the cloth-like plane are engaged, and the entire object to be lifted is lifted by holding the handle 4 with one hand. It is.

In addition, when removing the lifter from the article to be lifted after lifting the panel, first loosen the butterfly screw 6 and move the rotary pressing body 5 so that its both ends are on the crimping plates 1, 1 and above the basic crimping plate 1'. Remove the restraint of the crimping plates 1, 1 by rotating the crimping plates 1, 1 so that they are located at
1 (Fig. 2) to disengage the crimping plates 1, 1 from the carpet on the panel surface, and then open the handle 4.
All you have to do is lift the basic crimp plate 1' by holding it.

Since this invention is as described above, there is no damage caused by pressure bonding between the lifting device and the object to be lifted, and since it can be folded as shown in Figure 2, it is compact for transportation and storage, and the resin sheet with hook-shaped small pieces is attached. 2 is easy to replace and has great benefits in use. In addition, when removing the lifter from the object to be lifted, instead of releasing all the crimping force of all the crimping plates at once, the crimping force can be divided and released sequentially for each crimping plate.
Can be easily removed with little force.

This effect is extremely effective when dealing with panels for raised floors, which cannot be bent to release the pressure bonding force and are heavy and require a large pressure bonding area. Furthermore, since the pressure bonding plates 1, 1', and 1 can be bent to reduce the total pressure bonding surface, there is an advantage that the number of pressure bonding plates can be changed as appropriate depending on the weight of the raised floor panel.

[Brief explanation of the drawing]

The drawing shows one embodiment of this invention.
The figure is a plan view of the device in use, and FIG. 2 is a longitudinal sectional view of the device in a folded state. 1...Crimp plate, 1'...Basic crimp plate, 11...
Crimp surface, 2...Resin notebook with hook-shaped small piece group, 3...
Hinge, 4...handle, 5...rotating pressing body, 6...tightening screw, 9...screw rod.

Claims (1)

[Scope of utility model registration request] A plurality of crimp plates each having a resin sheet with a group of hook-shaped small pieces attached to the crimp surface are connected to each other with a hinge so that each crimp plate forms one crimp plane over the entire crimp surface. , a handle is provided on the opposite crimping surface of the basic crimping plate, and a rotating pressing body having a pressing length of the crimping plate necessary for maintaining the state of the crimping plane formed in one of the above. It is tightened with a tensioning screw on a screw protruding from the anti-crimping surface of the basic crimping plate so that its center overlaps the anti-crimping surface of the basic crimping plate and its end overlaps the anti-crimping surface of another crimping plate. Lifting device for panels for raised floors having a loosely and pivotably mounted cloth-like plane.