JPS644283Y2 - - Google Patents

Description

[Detailed description of the invention] A cellular deck plate in which a cell is formed by a lower plate 1 and an upper plate 2 is used in the floor structure of a building. At this time, a hole 6 for attaching an insert stud is provided in the upper plate 2 as an outlet for electric wires, etc. for floor wiring. The present invention aims to provide a mounting seat device for such a cell 3 that can be easily and simply mounted without requiring any special tools or the like.

In the figure, reference numeral 4 denotes a short cylindrical screw ring with a thread cut on its inner circumferential surface to form an inner circumferential thread 10, and a horizontal slit groove 7 cut on its outer circumference. This slit groove is for fitting the screw ring 4 into the hole 6 bored in the upper plate 2.
An opening 8 is formed by cutting off one part of the screw ring 4. The screw ring is made of plastic or metal to give it elasticity. The inner circumferential screw 10 has a threaded surface having a slope 9 from the top to the bottom and inward from the middle.
Therefore, the inner diameter of this female screw becomes narrower as it goes downward.

To fit the above-mentioned screw ring into the hole 6 as a mounting seat, first compress the screw ring with one hand to make the outer diameter smaller than the hole 6 and insert it into the hole, and then insert the slit groove 7 into the hole 6.
After aligning it with the edge of the hole 6, the inner circumferential edge of the hole 6 and the slit groove are brought into pressure contact by the restoring action of the elastic force by loosening the grip. Next, if you screw the threaded part of the lower outer periphery of the insert stud 5 into this threaded ring 4 (mounting seat) from above,
Since the screw ring 4 is pressed against the hole 6, the screw ring 4 does not rotate together when screwed in and advances downward. As it advances, the outer periphery of the screw ring is expanded due to the slope, so hole 6
The insert stud 5 is tightly engaged with the inner circumferential edge and firmly fixed, and at the same time, the insert stud 5 is stopped without descending beyond the limit.

As described above, the insert studs can be easily installed in the holes of the cell top plate by working from above the deck without the aid of other tools, and this greatly contributes to labor saving in construction work.

[Brief explanation of the drawing]

The figure shows an embodiment of the present invention, and Figure 1 is a vertical cross-sectional view.
Figure 3 is a plan view of the threaded ring in the middle of installation; Figure 3 is a front view of the threaded ring in the installed state; and Figure 4 is a perspective view of the threaded ring. 3... Cell, 4... Screw ring, 5... Insert stud, 6... Hole, 7... Slit groove, 8...
Opening, 9... slope, 10... inner circumference screw.

Claims (1)

[Scope of utility model registration request] The screw ring, which is made by cutting off a part of the short elastic cylinder, has an inner circumferential screw that screws together the lower part of the insert stud main body, with a slight slope from the top to the bottom, and continues from the top. , a cellular insert stud mounting seat comprising a slit groove on the outer periphery that fits into the circular hole edge on the top surface of the cellular deck.