JP2003313987A - Hanger for ceiling - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To propose a hanger for a ceiling absorbing vibrations in a wide frequency band. <P>SOLUTION: The hanger 1 for the ceiling has an upper-side mounting member 6 installed in an attic for a building or the underfloor section of an upper floor, a lower-side mounting member 7 mounted on a ceiling backing in an attic space and a damper member 8 arranged inside a connecting member 9 connecting the member 6 and the member 7. The damper member 8 is constituted by superposing first and second rubber isolators 81 and 82 having different hardness or the different quality of the materials, and the first and second rubber isolators 81 and 82 can absorb vibrations in separately different frequency bands. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ceiling suspender for suspending a ceiling behind the ceiling. More specifically, the present invention relates to a technique for absorbing vibration transmitted from under the ceiling.

[0002]

2. Description of the Related Art Conventional (wooden frame) construction method or 2 × 4
In any of the (two-by-four / framework wall) construction methods, when constructing a ceiling, various types of ceiling suspensions that support a ceiling base are used. Further, among various types of ceiling hangings, there is a structure in which a damper member prevents vibration from being transmitted from the upper floor.

For example, the ceiling hanger 10 shown in FIG. 4 is a metal rod-shaped member that extends vertically as a whole, and the hanger 10 has an upper mounting member 11 mounted on a beam behind the ceiling.
And a cylindrical connecting member 1 for the upper mounting member 12.
The lower mounting member 12 connected by 5 is attached to the lower mounting member 12. Here, inside the connecting member 15, a vibration isolator 14 is arranged as a damper member that absorbs vibrations that are going to be transmitted downstairs from the floor of the upper floor through the ceiling. A coil spring 13 is mounted around the lower mounting member 12, and the upper end portion of the lower mounting member 12 is elasticized by the coil spring 13.
It is pressed against 4.

5A and 5B is a rod-shaped member made of plastic that extends vertically as a whole, and in this ceiling hanging device 20 as well, an upper mounting member 21 is provided. Inside the connecting member 25 with the lower mounting member 22, a vibration-proof rubber 23 as a damper member is arranged.

[0005]

As described above, in the conventional ceiling hangers 10 and 20, inside the connecting members 15 and 25 between the upper mounting members 11 and 21 and the lower mounting members 12 and 22, The anti-vibration rubbers 14 and 23 as the damper members are arranged, but the conventional anti-vibration rubbers 14 and 23 are made of a single rubber, so that the frequency band of vibrations that can be absorbed is limited. . However, since the vibration transmitted from the upper floor contains various frequency components, there is a problem that the conventional ceiling suspensions 10 and 20 cannot efficiently absorb the vibration.

In view of the above problems, the object of the present invention is to
The purpose is to propose a ceiling suspension that can absorb vibrations in a wide frequency band.

[0007]

In order to solve the above-mentioned problems, according to the present invention, an upper mounting member to be mounted on a beam behind the ceiling, a ceiling base material extending downward from the side of the upper mounting member, and a lower end portion of the ceiling substrate. A ceiling attachment having a lower mounting member that supports a damper member in a connecting portion between the upper mounting member and the lower mounting member, wherein the damper member has a plurality of different vibration absorption bands. It is characterized by having anti-vibration rubber.

The term "beam" in the present specification means a beam in the conventional construction method and also a floor joist in the 2 × 4 publication. In addition, the term "ceiling base material" in the present specification means a field edge in the conventional construction method and also includes a field edge in the 2x4 publication.

In the ceiling hanger of the present invention, the damper member used at the connecting portion of the upper mounting member mounted on the beam behind the ceiling and the lower mounting member supporting the ceiling base is
Since a plurality of anti-vibration rubbers having different vibration absorption bands are provided, even if the frequency band of the vibration transmitted from the upper floor is wide, such vibration is efficiently absorbed. Therefore, vibration is not transmitted from the upper floor, so that a comfortable room can be built downstairs.

In the present invention, the plurality of anti-vibration rubbers are
For example, the vibration absorption bands are different due to the different materials. Further, the plurality of anti-vibration rubbers may have different vibration absorption bands due to different hardness.

A plurality of anti-vibration rubbers having such a structure are stacked and arranged.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is an explanatory view showing an example of a usage state of a ceiling hanging device to which the present invention is applied. FIG. 2 is a partial cross-sectional view of the ceiling hanger shown in FIG. FIG. 3 is a perspective view of a damper member used in the ceiling hanger shown in FIG.

As shown in FIG. 1, a ceiling hanger 1 is a building member for suspending a ceiling 4, and for example, a plurality of beams made of square timber that horizontally extend to support a floor 2 on an upper floor from below the floor. Three
And a plurality of field rim receivers 5 which are horizontally extended and support the ceiling 4 on the back side of the ceiling. In FIG. 1, the ceiling above is the floor below the floor 2 on the upper floor, but when the ceiling is an attic, the ceiling hanger 1 is
The ceiling 4 will be hung from the attic.

As shown in FIG. 2, the ceiling hanger 1 has a structure in which a plurality of parts are vertically connected so as to extend vertically as a whole, and is fixed to the beam 3 under the floor on the upper floor. An upper side mounting member 6, a lower side mounting member 7 which is coupled to the upper side mounting member 6 and fixed to the field frame receiver 5 behind the ceiling, and a coupling for coupling the upper side mounting member 6 and the lower side mounting member 7. And the member 9. In the ceiling hanger 1, the connecting member 9
A damper member 8 described later is arranged inside the.

The upper mounting member 6 has an upper mounting plate portion 61 mounted on the side surface of the beam 3 and a round bar portion 62 extending downward from the lower end portion of the upper mounting plate portion 61.
1 has a shape in which the upper end side of the round bar portion 62 is crushed in the radial direction. The upper mounting plate portion 61 has a through hole 61a for fixing a nail or a bolt for mounting it on the beam 3.
For example, three are formed vertically. The lower end side of the round bar portion 62 is a bolt portion 63.

The connecting member 9 is a cylindrical body 94 extending vertically.
And an annular lower cap 96 welded to the lower end opening of the cylindrical body 94. The upper end of the cylindrical body 94 is
It is a small-diameter portion, and the inner side thereof is a screw hole 95a into which the bolt portion 63 of the upper mounting member 6 is screwed. The lower cap 96 includes a round bar portion 7 of the lower mounting member 7.
A through hole 96a for passing 2 is formed.

The lower mounting member 7 has a round bar portion 72 protruding from the inside of the cylindrical body 94 through the through hole 96a of the lower cap 96 of the connecting member 9, and a lower side extending downward from the round bar portion 72. It has a mounting plate portion 73. The lower mounting plate portion 73 is
The lower end side of the round bar forming the round bar portion 72 is crushed in the radial direction, and a nail or a bolt for attaching the field edge receiver 5 is attached to the lower attaching plate portion 73. Through holes 73a for forming are formed at, for example, two places. A flange portion 78 is formed on the upper end portion of the round rod portion 72 with a flat rivet or the like.

Inside the cylindrical body 94, the damper member 8 is arranged between the flange portion 78 of the round bar portion 72 and the lower cap 96.

2 and 3, the damper member 8 used in the ceiling hanging device 1 of the present embodiment is provided with the annular first vibration-proof rubber 81 having the through hole 810 and the through hole 820. The second anti-vibration rubber 82 is vertically stacked. Of these anti-vibration rubbers 81 and 82, the anti-vibration rubber 82 on the lower side has a cylindrical portion 821 protruding downward, and the anti-vibration rubber 82 has an opening 96a in the lower cap 96.
It is in a state of protruding downward from.

The first anti-vibration rubber 81 arranged in this way
And the through holes 810 and 820 of the second anti-vibration rubber 82,
The round bar portion 72 is attached to the cylindrical portion 821 of the second anti-vibration rubber 82.
Is in a state of being passed through, and the round bar portion 72 is in a state of not directly contacting the cylindrical body 94 or the lower cap 96.

Here, the first anti-vibration rubber 8 located on the upper side
No. 1 is made of, for example, butyl rubber (IIR) having a low hardness, and the second anti-vibration rubber 82 located therebelow is made of butyl rubber having a high hardness. Therefore, the first
The vibration isolation rubber 81 and the second vibration isolation rubber 82 have different damper characteristics (vibration absorption band).

When manufacturing the ceiling hanger 1 having such a structure, for example, the bolt portion 6 of the upper mounting member 6 is screwed into the screw hole 95a on the upper end side of the cylindrical body 94 of the connecting member 9.
3 is screwed in to connect the connecting member 9 and the upper mounting member 6.

On the other hand, after mounting the damper member 8 and the lower cap 96 to the round bar portion 72 of the lower mounting member 7, a flange portion 78 is formed by a flat rivet, and in this state, the round bar portion is formed. After inserting the upper end side of 72 into the inside of the cylindrical body 94, the lower cap 96 is welded to the lower end opening of the cylindrical body 94.

As a result, the connecting member 9 and the lower mounting member 7 are connected to each other, and the ceiling hanger 1 is completed.

(How to use) In the ceiling hanger 1 constructed in this way, the upper mounting plate portion 61 of the upper mounting member 6 is fixed to the beam 3, and the lower mounting plate portion 73 is fixed to the lower mounting plate portion 73. After fixing the frame 5 to construct the ceiling base, the ceiling 4 is constructed. At this time, if the screwing depth of the bolt portion 63 of the upper mounting member 6 into the screw hole 95a of the connecting member 9 is adjusted,
The distance between the upper mounting plate portion 61 and the lower mounting plate portion 73 can be adjusted.

Further, since the connecting member 9 and the round bar portion 72 are rotatable, if the connecting member 9 is rotated even after the construction, the bolt portion 63 of the upper mounting member 6 with respect to the screw hole 95a of the connecting member 9 is rotated. The screwing depth can be adjusted. Therefore, the height position of the field bridge 5 can be finely adjusted after the construction.

(Operation / Effect of this Embodiment) In the state where the ceiling 4 is constructed by using the ceiling hanger 1 having such a structure,
Inside the connecting member 9 that connects the upper mounting member 6 and the lower mounting member 7, the damper member 8 is sandwiched between the connecting member 9 and the lower mounting member 7. Therefore, the vibration transmitted from the upper floor to the upper mounting member 6 via the beam 3 is transmitted to the connecting member 9, but is absorbed by the damper member 8, and the lower mounting member 7, the field bridge 5, and the ceiling. It does not reach 4.

Moreover, even when various frequency components are included in the vibration transmitted from the upper floor, the damper member 8
Includes a first vibration isolation rubber 81 and a second
The anti-vibration rubber 82 is used to efficiently absorb the vibration transmitted from the upper floor. Therefore, a comfortable room can be built downstairs.

(Other Embodiments) In the above embodiment, butyl rubbers having different hardness are used as the first anti-vibration rubber 81 and the second anti-vibration rubber 82.
Also, when the natural rubber (NR) is used as the anti-vibration rubber 81 and the ethylene-propylene-diene-methylene rubber (EPDM) is used as the second anti-vibration rubber 82 located on the lower side, the damper characteristics (vibration absorption band) Are different from each other, the vibration absorbing ability of the damper member 8 can be enhanced.

Further, in the above embodiment, two kinds of vibration-proof rubbers are used for the damper member 8, but three or more vibration-proof rubbers may be stacked and used.

[0032]

As described above, in the ceiling hanger of the present invention, the upper mounting member mounted on the beam behind the ceiling,
Since the damper member used in the connection part with the lower mounting member that supports the ceiling base is equipped with multiple anti-vibration rubbers with different vibration absorption bands, the frequency band of vibration transmitted from the upper floor is wide. Even in such a case, such vibration is efficiently absorbed. Therefore, vibration is not transmitted from the upper floor, so that a comfortable room can be built downstairs.

[Brief description of drawings]

FIG. 1 is an explanatory diagram showing an example of a usage state of a ceiling hanging device to which the present invention is applied.

FIG. 2 is a partial cross-sectional view of the ceiling hanger shown in FIG.

FIG. 3 is a perspective view of a damper member used in the ceiling hanger shown in FIG.

FIG. 4 is a partial cross-sectional view showing a conventional ceiling hanger.

5 (a) and 5 (b) are a front view and a side view, respectively, showing another conventional ceiling hanger.

[Explanation of symbols]

1 Ceiling hangers 2 Upper floor 3 beams 4 ceiling 5 Field luck 6 Upper mounting member 7 Lower mounting member 8 damper member 9 Connection member 61 Upper mounting plate 62 Round bar 63 bolts 72 Round bar 73 Lower mounting plate 94 cylindrical body 96 Lower cap 81 First anti-vibration rubber 82 Second anti-vibration rubber

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Matsushita             6-5-1, Tsukuda, Nishiyodogawa-ku, Osaka-shi, Osaka Prefecture             Inside Maizuru Co., Ltd. (72) Inventor Yoshitsuka             1502 Hachioji, Tsubame City, Niigata Prefecture (72) Inventor Toshihiro Nakata             Nagasaki Prefecture Minami Azumi-gun Azusagawa-mura             AW I Mach Co., Ltd.             Within (72) Inventor Yutaka Takebuchi             Nagasaki Prefecture Minami Azumi-gun Azusagawa-mura             AW I Mach Co., Ltd.             Within

Claims (3)

[Claims] 1. An upper mounting member that is mounted to a beam on the ceiling above the ceiling, and a lower mounting member that extends downward from the side of the upper mounting member and that supports a ceiling base at a lower end portion thereof. In the ceiling hanger including a damper member at a connecting portion with the lower attachment member, the damper member includes a plurality of anti-vibration rubbers having different vibration absorption bands. 2. The suspender for a ceiling according to claim 1, wherein the plurality of anti-vibration rubbers are different in material or hardness. 3. The ceiling hanger according to claim 1 or 2, wherein the plurality of anti-vibration rubbers are arranged in an overlapping manner.