JPS61134464A - Sound-proof floor structure - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] Industrial application field> This invention relates to a soundproof floor structure in an apartment complex or the like.

Problems to be Solved by the Invention In apartment complexes, the biggest challenge is to prevent floor rumbling and vibrations caused by water leakage from rain and other spills, as well as floor coverings hitting the floorboards. However, the actual situation is that it is not possible to eliminate the floor noise b' due to factors such as drying shrinkage of wooden drawers, shrinkage of concrete floor slabs, and the formation of gaps from the bottom edges of the joists. . Japanese Utility Model Application Publication No. 57-117143, which was proposed to eliminate this floor squeaking, proposed a method to suppress the contraction of the tension by inserting a spring washer with a small spring width between the tension and the tension when tightening the nut. In addition, the concrete floor slab could not follow the shrinkage of the concrete floor slab, and the screw nails were driven directly from the center line of the upper surface of the joist towards the main line. In order to prevent shrinkage gaps from occurring, floor squeaking may occur shortly after installation. The present invention is designed to eliminate floor noise and vibration with a simple structure.

<Structure of the Invention> The present invention involves installing anchor bolts in an upright manner on a floor slab to be poured with concrete, inserting and supporting the anchor bolts into the anchor bolts, nailing a joist to the top surface of the anchor bolt, and attaching the joists to the top of the joists. For soundproof floors that are covered with finishing flooring,
The joist is supported by the upper part of a hard elastic rubber body having a sufficient thickness to absorb the contraction of the floor slab and the contraction of the floor slab, and the U nut is tightened to prevent loosening, and the lIC1ff of the joist is To prevent a gap from being generated from an end of a facing surface due to nails driven diagonally toward the middle and lower sides, thereby providing a soundproof floor structure.

With the above structure], even if the concrete floor slab shrinks after drying after construction, the hard elastic rubber body that is tightened by the nut will absorb this shrinkage. The 9th with sufficient thickness, the Ohiki is a 9th)
By driving the nail diagonally toward the center of the joist, the lower end of the joist can be driven diagonally toward the center of the floor. It is also possible to prevent the occurrence of gaps between the floor and floor, thereby eliminating floor noise. Furthermore, the hard elastic rubber body acts as a buffer against vibrations, and the sound of footsteps on the upper floor is absorbed by the hard elastic rubber body and is not transmitted to the floor below.

<Example> An embodiment will be described below based on FIG.

Mounting holes 2 are provided at regular intervals in the concrete-cast delta floor slab IK, filler 3 is injected into each mounting hole 2, and anchor bolts 4t are installed vertically. Next, at the point where the lower nut (Nut) 5a (a nut with a spring plate attached opposite to the double threaded surface and configured to prevent loosening) is screwed into each anchor bolt 4. Adjust each nut 5a, J:t to have the same horizontal run using a thread or the like, and then insert a large pull 6 having a vertical hole in the center into each anchor bolt 4. 7a is a nine washer interposed between the main drawer 6 and 5a. 15 to 20 on the top of Ohiki 6
A hard elastic rubber body 8 with a hole of 1 m thickness is inserted into the washer 7.
Tighten it as much as you can (Pinch B and U oak) 5BL/C and stop. Place a joist 9 on the upper FM of each joist 6, and fix it by driving a nail 10 (also a screw nail) diagonally toward the lateral middle part of the joist 6,
A flooring material 11 (for finishing) suitable for the intended use is placed on the stone mounting surface 9a formed on the upper surface of the stone. a) U oak without slack) 5a, 5b t
- At the same time, a nine-cell elastic rubber body 8 having a thickness that can sufficiently absorb the drying shrinkage of the main puller 6 and the shrinkage of the concrete floor slab l is placed between the upper surface of the outer puller 6 and the upper U-nut 5b. Because they are strongly tightened and interposed, even if they contract, the elastic rubber body 8 absorbs it and prevents them from loosening, thereby preventing floor noise. Since a certain O19 hard elastic rubber body buffers vibrations, it has the effect of eliminating noise accompanying vibrations.

In addition, since the joist is attached to the upper part of the joist with a nail nailed diagonally from below the middle of the side run, the formation of a gap 7 from the lower end of the joist is also prevented by regulating it. \
Therefore, this soap has the effect of eliminating floor noise.

[Brief explanation of the drawing]

The figure is a longitudinal cross-sectional view showing one embodiment of the soundproof floor structure of the present invention, l is a floor slab made of concrete, 2 is a mounting hole, 3 is a filling material, 4 is an anchor bolt, 5a, 5b are U-nuts, 6
7a and 7'b are washers, 8 is a hard elastic rubber body, 9 is a joist, 10 is a nail, Su is a finishing flooring material. Patent Publisher Shinwa Co., Ltd.

Claims (1)

[Claims] (1) Install anchor bolts upright on the concrete floor slab, insert and support the large pull with the anchor bolt, nail the joists to the top of the large pull, and install finishing bolts on the joists. In a soundproof floor where flooring is laid, the upper surface of a hard elastic rubber body with a thickness sufficient to absorb the contraction of the floor slab and the contraction of the floor slab, and the clamping of the U nut are used. A soundproof floor structure characterized in that the floor joist is supported by tightening, and the generation of gaps from the lower end is prevented by nails that are driven diagonally from below the middle of the side surface of the joist towards the end of the floor.