JPH0628568Y2 - Inner wall structure of indoor stadium - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to an inner wall structure of an indoor stadium, and more particularly to an inner wall structure having both an elastic function and a sound absorbing function.

[Conventional technology]

Generally, in indoor stadiums such as gymnasiums, some floor structures and ceiling structures have elastic and sound absorbing functions, but the inner wall structure does not take these into consideration. .

However, there is a possibility that it may collide with the inner wall of a gymnasium or the like during the competition, and it is necessary to soften the impact at that time as much as possible to make it more safe, and to give a lecture on the noise of the audience during the competition and the gymnasium. Considering the acoustic characteristics when used for other purposes such as the above, it is necessary to consider the elastic function and the sound absorbing function in the structure of the inner wall.

Conventionally, as a technique similar to this kind of inner wall structure, for example, the technique disclosed in Japanese Patent Laid-Open No. 63-40038 is known.

As shown in FIG. 10, this is an H-shaped steel 2 on the front surface of the frame 1.
A stud square pipe 4 is arranged via the bracket 3 and the like, and the stud square pipe 4 is attached to the gable roof-shaped acoustic tile 6 via the support frame 5, and each stud square pipe 4 is provided on the back side of the acoustic tile 6. Glass wool 7 sandwiched between them is arranged, and the surface thereof is fixed by a wire mesh 8.

[Problems to be solved by the device]

However, since the above-mentioned conventional inner wall structure is a structure mainly used for indoor walls such as multipurpose halls and acoustic studios, no consideration is given to impact and the like, and it does not have an elastic function. It was Further, since the sound absorbing material of the glass wool 7 is also sandwiched between the left and right stud square pipes 4 and the surface thereof is fixed by the metal net 8, the mounting work is troublesome.

Therefore, the technical problem of the present invention is to improve the safety and the sound absorption characteristics in the event of an inner wall collision by providing the inner wall structure of the indoor stadium with an elastic function and a sound absorbing function.

[Means for Solving the Problems]

In order to solve the above problems, the present invention arranges a furring strip through an elastic support stand erected on a foundation wall, and the back surface of the furring strip is covered with a sound absorbing material and slits at predetermined intervals. The inner wall structure of the indoor stadium with the inner wall material provided with is used as a means.

[Action]

According to the above-mentioned means, the elastic function of the elastic support stand reduces the collision load input through the interior wall material and the furring strip material, and reduces the impact applied to the body.

Also, slits provided in the interior wall material, and sound absorbing material,
In addition to that, the sound absorbing function of the air layer between the sound absorbing material and the foundation wall effectively absorbs sound in a wide range from a low frequency range to a high frequency range.

Furthermore, since a sound absorbing material is provided in advance on the back surface of the interior wall material so that the sound absorbing material can be attached together when installing the interior wall material, the work man-hours are reduced by that amount, and the work efficiency of the entire construction is achieved. Become.

〔Example〕

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 and 2 show an inner wall structure of an indoor stadium according to the present invention, in which support stands 11 are arranged at predetermined intervals on the surface of a concrete wall 10, and the furring material is attached to the support stands 11. A structure in which 12 is fixed, an interior wall material 14 of a fixed shape is sequentially engaged with a fixture 13 attached to the furring strip 12, and a slit 15 is provided in each connection portion of the interior wall material 14. Has become. Also, interior wall material 1
The back surface of 4 is covered with a sound absorbing material 16 such as glass wool in advance, and the sound absorbing material 16 is also provided when the interior wall material 14 is attached.

The support stand 1 which is erected on the concrete wall 10
As shown in FIG. 3, different types of 1 are used depending on the height direction of the inner wall. Height adjustment support stands 11a are provided at the upper and lower ends, and a height of about 2 m from the floor surface 17 is used. A plurality of elastic support stands 11b are used for the waist wall portion at predetermined intervals, and another support stand 11c is used for the portion above the waist wall.

As shown in FIGS. 4 and 5, the height adjustment support stand 11a includes a base portion 18 that is vertically erected and fixed to the concrete wall 10, and a support body 19 that is height-adjustably supported by the base portion 18. Composed of and.

The base portion 18 is composed of a rectangular base plate 21 fixed to the concrete wall 10 by an anchor plug 20 or adhesion, and a support bolt 22 provided upright on the base plate 21.

Further, the support body 19 has a cylindrical nut 23 screwed into the support bolt 22, and a bulging portion 2 on the outer peripheral surface of the lower portion of the nut 23.
4, a disc-shaped support plate 26 having an inner peripheral edge portion fitted and fixed in an engagement groove portion 25 formed together with the nut 23 and an upper surface of the support plate 26, which rotates integrally with the rotation of the nut 23. And a fitting 27 for fixing the furring strip 12 having a substantially hat-shaped cross section.

The mounting bracket 27 is formed by one rectangular plate material, and is formed into a box shape by cutting off four corners and then raising the periphery, and a nut 23 is loosely fitted in the center of the bottom surface part 28. The hole 29 is opened. Further, locking projections 31 for engaging and fixing the furring strip 12 are provided on the left and right vertical walls 30 along the longitudinal direction of the furring strip 12 respectively.
Are provided one by one. This locking projection 31 is a vertical wall 3
It is a semi-elliptical shape in which the upper part of the horizontal cut provided at 0 is pressed inward, and the cut portion is extruded to form an engaging portion at the lower edge. Further, the upper portions of the pair of horizontal walls 33 orthogonal to the vertical walls 30 are bent outward at positions below the locking projections 31 to form horizontal flanges 34.

On the other hand, the furring strip 12 in the present embodiment is formed in a substantially hat-shaped cross-section, and the mounting metal fittings are provided at the tips of the leg portions 36 that extend horizontally outward from the lower ends of the both side edges 35. An upward flange 37 having a size commensurate with the space dimension 1 between the engaging lower end 32 of the vertical wall 30 of 27 and the horizontal flange 34 of the horizontal wall 33 is formed.

Therefore, in the height adjustment support stand 11a having such a configuration, the support plate 26 is fitted and fixed to the nut 23,
Further, the mounting bracket 27 is loosely fitted to the nut 23, and the bulging portion 24 prevents the mounting bracket 27 from coming off upward so that the nut 23
Since it is rotatably supported by the support plate 26,
When the is rotated for adjusting the height position, the nut 23 moves in the up-and-down direction while rotating on the support bolt 22 and moves the support plate 26 together with the nut 23. As described above, since the nut 23 is rotatably supported, the nut 23 does not rotate together with the nut 23, but slides while being in contact with the upper surface of the support plate 26.
The support plate 26 is larger than the mounting bracket 27, so that it can be easily rotated.

In addition, the elastic support stand 11b for the waist wall also has the above-described height adjustment support stand 11b as shown in FIGS. 6 and 7.
Similar to a, the base portion 18 is erected and fixed to the concrete wall 10, and the support body 38 is supported by the base portion 18 in a height adjustable manner.

The base portion 18 is composed of an anchor plug 20 or a rectangular base plate 21 fixed to the concrete wall 1 by adhesion or the like, and a support bolt 22 erected on the base plate 21. A cylindrical nut 40 having a female screw portion that is screwed into the support bolt 22 is engraved on the inner peripheral surface and has a flange portion 39 at the tip, and a support plate 4 for the furring strip 12 that is arranged on the outer peripheral side of the nut 40.
1 and a ring-shaped rubber elastic body 42 that is mounted between the support plate 41 and the nut 40 and integrally connects the two by means of baking means or the like.

The support plate 41 is provided on the left and right legs 36 of the furring strip 12.
43 for mounting and fixing the disk, and a cylindrical portion 44 formed concentrically with the nut 40 at the center of the disk 43.
Consists of. Further, the disc portion 43 is further provided with the furring strip 12
Has a diameter larger than the width dimension thereof, that is, the dimension between both ends of the left and right leg portions 36, and is reinforced by a flange 45 bent downward along the circumference thereof.

Therefore, the elastic support stand 11 having such a configuration
In b, after fixing the base portion 18 to the concrete wall 10 by the anchor plug 20, the disc portion 43 of the support plate 41 is fixed.
The nut 40 moves up and down on the support bolt 22 by rotating, and the height of the support plate 41 that moves integrally with the nut 40 can be adjusted.

On the other hand, the other support stand 11c is a support body 4 in which a base portion 18 having the same structure as the elastic support stand 11b, a nut portion 47 and a disc portion 48 are integrally formed.
6 and the height can be adjusted by rotating the disc portion 48.

As described above, when the furring strip 12 is attached to the three types of support stands 11a, 11b, 11c fixed along the vertical direction of the concrete wall 10, the support stands 11a,
When fixing 11b and 11c, I set the level roughly.
The furring strip 12 is bridged between the height adjustment support stands 11a arranged at the upper and lower ends, and fitted between the left and right vertical walls 30 of the mounting bracket 27. At this time, the furring strip 12 is attached to the left and right legs 3
6 contacts the horizontal flange 34 formed on the lateral wall 33 of the mounting bracket 27, and at the same time, the upward flange 37 of the tip of the leg 36 engages with the lower end edge of the locking projection 31 formed on the vertical wall 30 for mounting. It will be fixed to the metal fittings. Since the mounting bracket 27 is provided with the box-shaped space 49 by the vertical wall 30 and the horizontal wall 33, the furring strip 12 is locked by the protruding piece 31.
The elasticity of the furring strip 12 when it is engaged with
9 is obtained, and there is an advantage that the furring strip 12 can be easily attached to the attachment fitting 27.

Further, in such a mounting structure, the backward movement of the furring strip 12 is restrained by the horizontal flange 34 of the lateral wall 33, and the forward movement thereof is restrained by the locking projection 31 of the vertical wall 30. In the left-right direction as well, the vertical wall 30 prevents the legs 36 from opening, so that the furring strip 12
Will be secured.

Next, when the height position of the furring strip 12 is adjusted again after the furring strip 12 is attached, the height adjustment support stand 11a is used.
The height of the entire furring strip 12 can be adjusted simply by rotating the support plate 26 and changing the positions of the nut 23 and the mounting bracket 27.

Next, an elastic support stand 11b and another support stand 11 arranged between the height adjustment support stands 11a.
The height position of each of the disc portions 43 and 48 of c is adjusted by rotating the disc portions 43 and 48, and the disc portion 4 is attached to the lower surface of the leg portion 36 of the furring strip 12.
The upper surfaces of 3, 48 are brought into contact with each other, and both are fixed by a tapping screw 50 screwed from the leg portion 36 side.

In this way, the furring strips 12 positioned and fixed to the support stand 11 are arranged on the surface of the concrete wall 1 at predetermined intervals, as shown in FIG. Then, the interior wall material 14 is attached to the furring strip 12 thus arranged by the fixing bracket 13.

As shown in FIG. 9, the fixture 13 has locking pieces 53a and 53b that are formed by bending outwards at the top and bottom of a base 52 having a mounting hole 51 formed at the center, and at the left and right sides. Has a positioning piece 54 directed inward, and the positioning piece 54 is provided on both sides 35 from above the furring strip 12.
The tapping screw 50 from the mounting hole 51.
Is fixed to the furring strip 12 by screwing.

On the other hand, the interior wall material 14 in which the sound absorbing material 16 is previously arranged on the entire back surface is made of a rectangular plate material, and upward inclined surfaces 55a and 55b are formed at the lower and upper edges in the longitudinal direction. The engaging grooves 5 into which the locking pieces 53a, 53b of the fixing fitting 13 are fitted at the rear end portions of the inclined surfaces 55a, 55b.
6a and 56b are provided, respectively.

Therefore, when the interior wall material 14 is attached to the furring strip 12, as shown in FIGS. 1 and 2, the interior wall material 14 is mounted on the fixing metal fitting 13 fixed to the furring strip 12 from above. Then, the locking groove 56a at the lower edge of the interior wall member 14 is fitted into the locking piece 53a on the upper side of the fixture 13. Then, the lower engaging piece 53b of another fixing member 13 is fitted into the engaging groove 56b of the upper edge portion of the interior wall material 14, and in that state, it is fixed to the furring material 12 by the tapping screw 50. . Further, another interior wall material 14 is attached to the fixing fitting 13. In this way, the interior wall material 14 is attached to the furring strip 12 by sequentially stacking the interior wall material 14 from the side closer to the floor to the upper side using the fixing bracket 13, and the construction of the interior wall material 14 is completed.

Therefore, in such a mounting structure, upward slits 15 are formed along the longitudinal direction between the adjoining interior wall members 14 at the fastening portion of the fixing member 13.
Therefore, the slit 15 and the sound absorbing material 16 disposed on the back surface of the interior wall material 14, and the air layer 57 and the like provided between the sound absorbing material 16 and the concrete wall 1 integrally perform a sound absorbing function. However, the noise can be reduced and the acoustic characteristics can be improved in a wide range from the low frequency range to the high frequency range.

Further, since the height adjustment support stands 11a are arranged at the upper and lower ends of the inner wall to adjust the height of the furring strip 12, the adjusting means is simple and the height of the furring strip 12 is high. Easy to get the position accurately.

Further, since the elastic support stand 11b is used for the waist wall portion which becomes a problem when the athlete collides with the inner wall, the elastic support stand 1 is transmitted through the interior wall material 14 and the furring strip material 12.
The collision load entering 1b is absorbed by the rubber elastic body 42, and the impact on the body is softened. In particular, since the rubber elastic body 42 receives the load that enters from the direction orthogonal to the plane of the interior wall material 14 in the shearing direction, it is effective not only against the load that enters from the orthogonal direction but also from the oblique direction. In addition to working, the rubber elastic body 42 can be prevented from extending. Further, in this embodiment, the rubber elastic body 42
Is closely packed between the outer periphery of the nut 40 and the inner periphery of the cylindrical portion 44, so that even if a crack occurs in one place due to deterioration of rubber, the cushioning effect is not impaired.

〔effect〕

As described above, according to the inner wall structure of the indoor stadium according to the present invention, since the inner wall material is supported by using the elastic support stand, even when the player collides with the inner wall, the elasticity is maintained. The support stand relieves the impact on the body and reduces safety.

In addition, the slit provided with the interior wall material, and the sound absorbing effect is exhibited by the air layer and the like between the sound absorbing material and the concrete wall arranged on the back surface thereof, and the acoustic characteristics are improved together with the reduction of noise, It can be widely used for other purposes besides competition.

Further, since the sound absorbing material is integrally provided on the back surface of the interior wall material, the number of work steps for attaching the sound absorbing material is reduced, and the work efficiency of the entire construction is correspondingly reduced.

[Brief description of drawings]

1 is a perspective view showing an embodiment of the inner wall structure of an indoor stadium according to the present invention, FIG. 2 is a partially enlarged sectional view of FIG. 1, and FIG.
FIG. 4 is a sectional view showing the entire inner wall structure, FIG. 4 is a perspective view showing a height adjustment support stand, FIG. 5 is a sectional view taken along line VV in FIG. 4, and FIG. 6 is a perspective view showing an elastic support stand. FIG. 7, FIG. 7 is a sectional view taken along line VII-VII in FIG. 6, FIG. 8 is a sectional view showing another supporting stand, FIG. 9 is a perspective view showing a fixing bracket, and FIG.
FIG. 0 is a perspective view showing an example of a conventional inner wall structure. 10 ... Concrete wall (foundation wall) 11b ... Elastic support stand 12 ... Furnishing material 14 ... Interior wall material 15 ... Slit 16 ... Sound absorbing material

Claims (1)

[Scope of utility model registration request] 1. A furring strip is arranged through an elastic support stand erected on a foundation wall, and the back of the furring strip is covered with a sound absorbing material and slits are provided at predetermined intervals. The inner wall structure of the indoor stadium, which is equipped with interior wall materials.