JPS6225665A - Portable floor structure and floor joists used therein - 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> The present invention provides a flooring that suppresses sound and vibrations generated on the floor from being transmitted to the downstairs, and also prevents the adhesive between the flooring material and the joists. The present invention relates to the structure and the joists that realize this floor structure.

<Prior Art> In high-rise housing, etc., there is a particular requirement for sound insulation from adjacent rooms and downstairs or upper floor spaces, and various sound walls, sound insulation floors, etc. have been developed.

As shown in FIG. 4, which shows an example of the structure of a conventional floor developed for this purpose, the top of the floor slab 101 is
Cushion rubber 102 in the shape of a truncated cone is placed at regular intervals], and a female screw member 104 into which the lower end of a vertical adjustment bolt 103 is screwed is screwed into the cushion rubber 102.
is fitted. A female threaded plate 106 fixed to the lower end surface of the joist 105 is screwed into the upper end of the adjustment bolt 103, which has reverse threads at the top and bottom, and the upper end of the adjustment bolt 103 is bored into the joist 105. It is located inside the bolt operation hole 107. This joist 10 is installed at both ends of the joist 105.
A joist connecting member 108 perpendicular to the joist 105 is connected via a thick handle 1098, and other joists parallel to this joist 105 are similarly connected to the joist connecting member 108. Building wall 110
A rubber spacer 111 is interposed between the wall surface 110 and the opposing joist connecting material 108 and a joist (not shown). installed on top.

Therefore, the flooring 112 and vibrations and sounds generated on this flooring 112 are transmitted from the joist 105 and the joist connecting material 10g to the wall surface 110 via the rubber spacer Ill, and similarly to the floor slab Ioi from the joist 105 to the cushion. rubber 102
conveyed through. However, these vibrations and sounds are absorbed as thermal energy due to the elastic deformation of the rubber spacer 111 and the cushion rubber 102, and the vibrations and sounds propagated to adjacent rooms and downstairs rooms are reduced.

<Problems to be Solved by the Invention> In the conventional floor structure, the flooring material is in direct contact with the joists, so the expansion and contraction of the flooring material and joists due to temperature fluctuations and the resistance to T. Due to uneven load fluctuations, etc., the flooring materials and joists rubbed against each other, causing a noise.

Furthermore, it is not possible to effectively reduce floor vibrations and impact noises caused by walking, etc., and it is difficult to efficiently suppress the generation of vibrations and sounds within the room.

In view of the above-mentioned problems with the conventional standing floor structure that requires only one force, the present invention is capable of efficiently suppressing the generation of vibrations and sounds within a room, and also provides a standing floor structure that does not include the flooring material and the joists. The purpose of the present invention is to provide a joist that realizes this floor structure.

Means for Solving Problems> The floor structure of the present invention includes a plurality of mutually parallel joists whose ends are respectively connected to a pair of joist connecting members, and which are mounted on a floor slab via elastic materials. The flooring material is layered on these joist connecting materials and the joists with a rubber-like elastic material interposed therebetween.

Further, the joist of the present invention used in this floor structure is characterized by having a rubber-like elastic material protruding from the surface facing the flooring material.

Vibration and sound from the flooring are transmitted to the joists via the rubber-like elastic material, but as the rubber-like elastic material deforms, some of the vibration and sound are converted into thermal energy and absorbed. Ru.

Embodiment As shown in FIG. 1 showing the cross-sectional shape of an embodiment of the floor structure according to the present invention, cushioning rubbers 12 having a truncated conical shape are placed on the floor slab 11 at regular intervals. Specifically, a female screw member 14 into which the upper end of the vertical adjustment port 1-13 is screwed is fitted into the cushion rubber 12. At the top end of 13 (adjustment pole with reverse screws engraved on the top and bottom),
Female threaded plate 17 fixed to joist 16 via perforated plate 15
are screwed together, and the upper end of the adjustment bolt 13 is located within a bolt operation hole 18 bored in the joist 16. Joist 1
A joist connecting member 19 that is perpendicular to the joist 16 is connected to both ends of the joist 16 through a thick handle 20 with a gap to prevent stacking of bills. As shown in FIG. 3, which is an enlarged view of FIG. 3, other joists 16 parallel to this joist 16 are similarly connected to joist connecting members 19.

The perforated plate 15 that is joined to these joists 16 and the joist connecting material 19 has a large number of small holes 21 formed therein to exhibit a sound absorption effect, and the perforated plate 15 that is connected to the joist 16 and the joist connecting material 19 exhibits a sound absorption effect. The board 15 is filled with a sound absorbing material 22, such as glass wool, which also has heat insulating properties. Note that the perforated plate 15 and the sound absorbing material 22 do not necessarily need to be provided.

The upper surface of the joist 16 on which the flooring material 23 is placed has two parallel grooves 24 carved along its longitudinal direction, and these grooves 24 are filled with flexible synthetic rubber, synthetic resin, etc. A part of the rubber-like elastic body 25 is embedded and protrudes from the upper end of the joist 16. In this embodiment, a groove 24 is carved in the joist connecting material 191 to form a part of the rubber-like elastic body 25.
A rubber spacer 27 is integrally formed with the rubber-like elastic body 25 attached to the joist connecting member 19 and the joist l6 facing the wall surface 26 of the building, and is in contact with the wall surface 26. Note that in this embodiment, the rubber spacer 27 is integrally molded with the rubber-like elastic body 25, but the rubber-like elastic body 25
Of course, it is also possible to mold it separately. The grooves 24 formed in the joists 16 can also be dovetail-shaped for the purpose of making it difficult for the rubber-like elastic body 25 to be removed. Rubber-like elastic body 25
You can also rub it so that it is attached. It is also naturally possible to attach the rubber-like elastic body 25 using an adhesive or the like without cutting the grooves 24, or to form the rubber-like elastic body 25 into a block shape such as a plate or a ring. . In short, it is sufficient that some form of rubber-like elastic material is protruded from the upper surface of the joist 16.

When the grooves 24 are carved in the joists 16 as in this embodiment, the grooves 24 are prevented from cracking, waviness, or twisting due to irregularities in the wood, and the rubber-like elastic bodies 25 are all in contact with the flooring 23. It is desirable that the joists 16 be made of laminated wood that has been subjected to an artificial drying process and then sawn and joined together.

The flooring material 23 is installed on the joists 16 and joist connecting members 19 with a gap between them and the wall surface 26 via rubber-like elastic bodies 25 and rubber spacers 27, and the cushion rubber 12 and the like are provided in three sets for one joist panel 28. The screwing amount of the adjustment bolt 13 is adjusted from the upper end of the bolt operation hole 18 using a screwdriver or the like, and the slope of the joist panel 28 and the angle from the floor slab 11 are adjusted so that the flooring 23 is located on the same horizontal plane. The height is adjusted.

Therefore, the floor material 23 and the vibrations and sounds generated on this floor material 23 are transmitted from the rubber-like elastic body 25 to the joist 16 and the joist connecting material 1.
9 to the wall surface 26 by the rubber spacer 27, and similarly from the rubber-like elastic body 25 to the floor slab 11.
6 and the cushion rubber 12 through the perforated plate 15. However, these vibrations and sounds are absorbed as thermal energy due to the elastic deformation of the rubber-like elastic body 25, the rubber spacer 27, and the cushion rubber 12, and the vibrations and sounds propagated to adjacent rooms or downstairs rooms are reduced. Furthermore, since the rubber-like elastic body 25 is interposed between the flooring material 23 and the joist 16, there is no sound of bills due to friction between them, and there is no interference effect between the sound absorbing material 22 and the perforated plate 15. Together with this, vibrations and noise generated within the room are also suppressed.

<Effects of the Invention> According to the present invention, it is possible to prevent the occurrence of clumping noise due to contact friction between flooring materials and joists, and it is also possible to realize a floor structure with high sound absorption and vibration damping ability. Furthermore, since the rubber-like elastic material is protruded from the joists themselves, this floor structure can be realized with simple construction work.

[Brief explanation of the drawing]

Fig. 1 is a sectional view showing the concept of one embodiment of the floor structure according to the present invention, Fig. 2 is a perspective view showing the appearance of the joist panel in an exploded state, and Fig. 3 is a broken section showing a part thereof extracted and enlarged. The perspective view and FIG. 4 are cross-sectional views showing an example of a conventional floor structure. Also, in the figures, 11 is a floor slab, 12 is a cushion rubber, 16 is a joist, 19 is a joist connecting material, 23 is a flooring material, 25
is a rubber-like elastic body.

Claims (2)

[Claims] (1) A plurality of mutually parallel joists whose ends are respectively connected to a pair of joist connecting members are placed on a floor slab via elastic materials, and a rubber-like elastic material is placed on these joist connecting members and the joists. A floor structure characterized by layering flooring materials through layers. (2) A joist characterized by having a rubber-like elastic material protruding from the surface facing the flooring material.