JPH0328101Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) This invention is particularly suitable for use as a preventive underfloor support device in places where vibrations and noise are intense, such as gymnasiums, judo halls, and kendo halls. This relates to a vibration member.

(Prior Art) Conventionally, there have been the following underfloor support devices designed with particular emphasis on vibration isolation and soundproofing.

FIG. 1 shows an example of a conventional underfloor support device.

In this underfloor support device, first, the concrete slab 1 serving as the foundation is marked in accordance with the installation position of the underfloor support bundle pillars, and then holes are drilled in the concrete slab 1 using a stone drill etc., and the anchors are Drive bolts 2 at specified intervals.
Next, the underfloor support bundle column 3 is screwed into the threaded portion 2a of the anchor bolt 2 via the rubber gasket 2b. Note that this underfloor support bundle column 3 is a cylindrical member 4
, a pedestal 5 , an upper cover 6 , and a nut 7 .

After fixing the underfloor support bundle columns 3 to the concrete slab 1 at predetermined intervals, the adjustment bolts 10 are screwed into the nuts 7 on the upper end of each bundle column 3, and the adjustment nuts 11 that have been fitted into the adjustment bolts 10 in advance are screwed into the nuts 7 on the upper end side of each bundle column 3. is tightened via the spring washer 12, and then the double tightening nuts 13, 14 and the flat washer 1 are attached to the adjustment bolt 10.
6. After attaching the vibration isolating member 19 consisting of the bound vibration isolating rubber 17 and the flat washer 18, fit the upper bolt 21 fixed to the vibration isolating member 19 with the large tensioner 22 and let it flow.

After flowing the main draw 22, the level is adjusted, and after the level adjustment, the washer 23 and nut 24 are sequentially attached to the upper bolt 21, and the level is adjusted again and completely tightened.

Next, after pouring the large pull 22, the part where the joist 26 is to be poured is marked in advance, a joist packing 27 is arranged at that position, the joist 26 is poured, and it is completely tightened with a tapping screw 29. Next, after installing plywood 31 on the joists 26, the finished flooring material 32 is placed and fixed with tapping screws 33 to complete the construction.

However, in such a conventional underfloor support device, as the vibration isolating member 19, as shown in FIG. 2, an upper flat washer 18 to which an upper bolt 21 is welded and fixed in advance is used, and as shown in FIG. , the lower flat washer 16 to which the nut 14 has been welded and fixed in advance is placed in a rubber mold, and then the bound vibration isolating rubber 17 is integrally molded in the rubber mold, as shown in FIGS. 4 and 5. Since the anti-vibration member 19 had a single-piece shape, there were problems in that it took time to manufacture the vibration-isolating member 19 and the price increased.

(Purpose of the invention) This invention was made by focusing on the above-mentioned conventional problems, and it is possible to reduce the manufacturing man-hours and manufacturing cost of the vibration isolating member provided on the upper part of the underfloor support bundle column. It is an object of the present invention to significantly reduce the cost of an underfloor support device that uses a large number of such vibration isolating members.

(Structure of the device) This device fixes a lower plate and an upper plate to the lower and upper sides of the elastic body, respectively.
A vibration isolating member is used, in which a nut is fixed to the lower surface of the lower plate, and an upper bolt is fixed to the upper surface of the upper plate, and an adjustment bolt provided at the upper part of the underfloor support bundle is screwed into the nut, and the In an underfloor support device that supports flooring material via upper bolts, the lower plate to which nuts are fixed to the lower surface side is provided with an upward elastic body fitting piece, and the upper plate to which the upper bolts are fixed to the upper surface side is provided with an upwardly facing elastic body fitting piece. is provided with an elastic body fitting piece facing downward, the elastic body is provided with a lower plate fitting hole and an upper plate fitting hole, and the elastic body fitting piece of the lower plate is inserted into the lower plate fitting hole of the elastic body. The elastic body, the lower plate, and the upper plate are integrated by fitting and fitting the elastic body fitting piece of the upper plate into the upper plate fitting hole of the elastic body.

(Embodiment) FIGS. 6 and 7 are diagrams showing an example of the configuration of a vibration isolating member used in an underfloor support device according to an embodiment of this invention, and this vibration isolating member 39 is A rubber-like elastic body 37 having a vibration-proofing function in 39, an upper plate 38 fixed to the upper surface side of this rubber-like elastic body 37, and the rubber-like elastic body 3
7 and a lower plate 36 fixed to the lower surface side of the plate 7.

Of these, the upper plate 38, as shown in FIG. 8, has an upper bolt 21 welded to its upper surface which has the same function as the upper bolt 21 shown in FIG. Elastic body fitting pieces 41 and 42 are integrally provided by bending and molding, and each of the downwardly facing elastic body fitting pieces 41 and 42 is formed with a toothed portion 43 for preventing slippage.

Further, as shown in FIG. 10, the lower plate 36 has nuts 1 shown in FIG.
A nut 14 having the same function as 4 is fixed by welding, and two upwardly facing elastic body fitting pieces 45, 4
6 is integrally provided by bending.

Further, as shown in FIG. 9, the rubber-like elastic body 37 has a generally rectangular parallelepiped shape, and is an upper plate on which the downward elastic body fitting pieces 41 and 42 provided on the upper plate 38 are fitted and fixed. Fitting hole 51,
52 is formed, and the lower plate 3
Lower plate fitting holes 55, 5 for fitting and fixing upward elastic body fitting pieces 45, 46 provided in 6
6 is formed.

Then, the downward elastic body fitting pieces 41 and 42 of the top plate 38, to which the top bolts 21 have been welded and fixed in advance, are fitted into the top plate fitting holes 51 and 52 of the rubber-like elastic body 37, and the top plate 38 is made of rubber. The lower plate 36 is fixed to the rubber-like elastic body 37 and nuts 14 are welded and fixed in advance to the lower plate fitting holes 55 and 56 of the rubber-like elastic body 37.
By fitting the upward elastic body fitting pieces 45 and 46 and fixing the lower plate 36 to the rubber-like elastic body 37, the vibration isolating member 39 as shown in FIGS. 5 and 6 can be formed. obtain.

As shown in FIG. 1, the vibration isolating member 39 having such a structure is fixed with the nut 13 by screwing the adjustment bolt 10 into the nut 14, and the upper bolt 21 is fitted with the large tension member 22. Natsuto 24
Fixed by

(Effect of the invention) As explained above, according to this invention,
In an underfloor support device that has a structure in which a vibration isolating member is provided at the upper part of a bundle column for underfloor support and the flooring material is supported through the vibration isolating member, an upwardly directed elastic body is fitted to the lower plate to which a nut is fixed on the lower surface side. In addition, an upper plate with an upper bolt fixed to the upper surface side is provided with an elastic body fitting piece facing downward, and the elastic body is provided with a lower plate fitting hole and an upper plate fitting hole, and the elastic body is provided with a lower plate fitting hole and an upper plate fitting hole. The elastic body fitting piece of the lower plate is fitted into the lower plate fitting hole of the body, and the elastic body fitting piece of the upper plate is fitted into the upper plate fitting hole of the same elastic body, thereby connecting the elastic body and the lower plate. Because the structure consists of an integrated top plate and vibration-proofing member, it is possible to reduce the number of man-hours and production costs for the vibration-isolating member, and there is no need for the complicated work of installing the plate in a rubber mold as in the past. A very good effect with great practical value such as not having to be used can be obtained.

[Brief explanation of the drawing]

Fig. 1 is a front explanatory view showing an example of the configuration of a conventional underfloor support device, Figs. 2 and 3 are perspective views of an upper flat washer and a lower flat washer constituting a conventional vibration isolating member, and Figs. FIG. 5 is an explanatory view of a slope and a front view of a conventional vibration isolating member, and FIGS. 6 and 7 are an explanatory view of a slope and a front view of a vibration isolator used in an underfloor support device according to an embodiment of this invention. Figure 8 is an explanatory diagram of the slope of the upper plate in Figures 6 and 7, Figure 9 is an illustration of the slope of the rubber-like elastic body in Figures 6 and 7, and Figure 10 is an illustration of the slope of the upper plate in Figures 6 and 7. FIG. 8 is an explanatory view of the slope of the lower plate of FIG. 7; 3...Bundle pillar for underfloor support, 10...Adjustment bolt,
14...nut, 21...upper bolt, 32...
floor material, 36... lower plate, 37... elastic body,
38...Top plate, 39...Vibration isolation member, 4
1, 42...Downward elastic body fitting piece, 45, 46
. . . upward elastic body fitting pieces, 51, 52 . . . upper plate fitting holes, 55, 56 . . . lower plate fitting holes.

Claims (1)

[Scope of utility model registration request] A lower plate and an upper plate are fixed to the lower side and the upper side of the elastic body, respectively, a nut is fixed to the lower side of the lower plate, and an upper bolt is fixed to the upper side of the upper plate, using a vibration isolating member, An underfloor support device that supports flooring material via the upper bolt while screwing an adjustment bolt provided at the upper part of the underfloor support bundle column into the nut,
The lower plate to which the nut is fixed on the lower surface side is provided with an upwardly facing elastic body fitting piece, and the upper plate to which the upper bolt is fixed to the upper surface side is provided with a downwardly facing elastic body fitting piece. is provided with a lower plate fitting hole and an upper plate fitting hole, and the elastic body fitting piece of the lower plate is fitted into the lower plate fitting hole of the elastic body, and the upper plate fitting piece of the lower plate is fitted into the upper plate fitting hole of the elastic body. A vibration isolating member for an underfloor support device, characterized in that the elastic body, the lower plate, and the upper plate are integrated by fitting elastic body fitting pieces of the plate.