JPS6212006Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a wire mesh fixing device for attaching a wire mesh for protecting a sound absorbing material to a soundproof frame in a soundproof panel.

Conventionally, in a soundproof panel constructed by filling a soundproofing frame with a soundproofing material and protecting it with a wire mesh, the wire mesh has been fixed to the soundproofing frame by welding. Therefore, there was a problem that the soundproofing material could be scorched or burned by the welding sparks. Therefore, countermeasures such as inserting a shielding plate between the part to be welded and the soundproofing material have been taken, but the spark blocking effect is not always sufficient and the
Workability was extremely poor. Also,
Since the wire mesh is fixed by welding in this way, it has been difficult to replace the sound absorbing material.

In view of these circumstances, the present invention allows the wire mesh to be installed extremely easily and securely, and also
It is an object of the present invention to provide a wire mesh fixing device for a soundproof panel, which can be easily removed and the work of replacing the sound absorbing material can be simplified.

Embodiments of the present invention will be described below with reference to the drawings.

Reference numeral 1 denotes a soundproof frame, which is formed of a steel plate in the shape of a flat housing frame with an open sound-absorbing side, and a reinforcing frame 2 is provided in the middle part. A soundproof panel is constructed by filling the soundproofing frame 1 with a soundabsorbing material 3 such as glass wool, and extending a wire mesh 4 for protecting the soundabsorbing material over the opening 11 of the frame 1.

The wire mesh 4 is fixed at several ends to the opening edge 12 of the soundproof frame 1 by fasteners 5, and fasteners 6,
By fixing several parts of the central portion to the reinforcing frame 2 by means 6, the soundproof frame opening 11 is stretched. The metal fittings 5 and 6 for fixing the ends and the center of the wire mesh 4 are each formed into the shape shown in the figure by bending wire rods with high spring properties.

That is, the end fixing stopper 5 is formed by bending a wire rod into a spiral shape. Specifically, the shape as a whole has a so-called track shape in which curved parts continue on both sides of a parallel straight part, and both bent ends 5
1 and 52 are straight parts, and the wire is bent into a spiral shape facing in the same direction, and the bent end 5
The curved portion 53 on the side facing the end surfaces of the frames 1 and 52 stands diagonally upward, and the double inner and outer portions 54 and 55 other than the standing portion 53 are the soundproof frame 1.
It serves as a clamping pressure part that elastically clamps the opening edge 12 of the opening. On the other hand, the central part fixing metal fitting 6 is made by folding the wire bent into a U-shape in a plan view and then folding it back into a U-shape on the side, and forming the upper sides 61 of the U-shape into a V-shape.
The reinforcing frame 2 is pressed between the bottom parts 61a, 61a and the lower sides 62, 62 of the upper sides 61, 61 of the V-shape, and the diagonally upward tips of the upper sides 61, 61 are formed by bending the reinforcing frame 2 into a shape. Parts 61b, 61b
This allows the central part of the wire mesh to be pressed and fixed onto the upper surface of the reinforcing frame 2.

A method of fixing the wire mesh using these two types of fasteners 5 and 6 will be described below.

First, in order to fix the ends of the wire mesh to the opening edge 12 of the soundproof frame 1 at several symmetrical locations, as shown in FIGS. At the same time, the same metal fitting 5
The opening edge 12 is sandwiched between the clamping pressure parts 54 and 55. At this time, the clamping pressure parts 54 and 55 open vertically and firmly clamp the opening edge 12 by their restoring force. Further, both bent ends 51 and 52 are connected to the clamping pressure portion 5.
The restoring forces of 4 and 55 engage the upper and lower surfaces of the opening edge 12 so as to bite into them. For this reason, the metal fitting 5
can be firmly and stably attached to the soundproof frame 1.
The wire mesh wire 41 is elastically pressed and fixed to the upper surface of the opening edge 12 by the upright portion 53 of the metal fitting 5. Further, the tip of the isotropic wire 41 is fixed in position in the length direction by coming into contact with the arcuate portion 54a of the clamping pressure portion 54. In this way, the ends of the wire mesh 4 are securely attached to the soundproof frame opening edge 12 in a state where they are fixed in position upward, downward, leftward, rightward, and forward and backward (in the panel thickness direction).

Next, in order to fix several places (two places in the figure) in the central part of the wire mesh to the reinforcing frame 2, it is necessary to
The upper side part 61,
At the same time, the strands 41 are pressed onto the upper surface of the reinforcing frame 2 by the tip portions 61b, 61b of the V-shaped upper side portions 61,
The reinforcing frame 2 is sandwiched between the bottom portions 61a, 61a of 61 and the lower side portions 62, 62. In this way, the central portion of the wire mesh can be easily and firmly fixed to the reinforcing frame 2 by the fastening metal fittings 6, 6, and sufficiently firmly by the spring force of the metal fittings 6.

In this way, the wire mesh 4 can be easily fixed at the ends and center to the opening edge 12 of the soundproof frame and the reinforcing frame 2 by the fasteners 5, 6, so that the installation work of the wire mesh 4 is significantly simplified and there is no risk of the sound absorbing material 3 being burned by welding sparks as in the conventional case.
As described above, since the soundproof frame 1 and the reinforcing frame 2 are secured by the spring force, they can be easily removed. Therefore, the wire mesh 4 can be easily removed as required, and the sound absorbing material 3 can be easily replaced.

It goes without saying that the number of fixing points at the ends and center of the wire mesh 4 is not limited to the illustrated example, and can be appropriately selected depending on the size of the panel, that is, the size of the wire mesh 4, etc. In addition, in the above embodiment, the reinforcing frame 2
Although the case where the reinforcing frame 2 is provided in only one place in the center of the sound absorbing frame 1 is shown, the present invention can be carried out in the same manner as described above even if several reinforcing frames 2 are provided in parallel or crossing each other. I can do it.

As described above, according to the present invention, the wire mesh can be easily and securely attached to the opening of the soundproof frame using two types of fasteners, and it can also be easily removed, and the sound-absorbing material can be attached easily. Replacement work can be done easily. In addition, the double-stop metal fittings can be easily manufactured by bending wire rods, reducing material costs.
It has extremely high practical value, with low processing costs.

[Brief explanation of the drawing]

The figures show an embodiment of the present invention, in which Fig. 1 is a back view of the panel, Fig. 2 is a perspective view of a metal mesh end fixing metal fitting, and Fig. 3 is a perspective view of a central part fixing metal fitting.
FIG. 4 is a plan view showing a state in which the wire mesh is fixed by both fasteners, and FIG. 5 is a sectional view thereof. 1... Soundproof frame, 11... Opening of soundproof frame, 12
...Same opening edge, 2...Reinforcement frame, 3...Sound absorbing material,
4... Wire mesh, 41... Wire mesh wire, 5... Stopper for fixing the end of the wire mesh, 51, 52... Both bent ends of the same metal fitting, 53... Standing part, 6... Stopper for fixing the center part of the wire mesh Metal fittings, 61, 61... Upper side of the same metal fittings, 6
2,62... lower side part.

Claims (1)

[Scope of utility model registration request] In a soundproof panel constructed by filling a soundproofing frame with an opening on the sound-absorbing side and a reinforcing frame provided in the middle part, and placing a wire mesh over the opening, the ends of the wire mesh are attached to the soundproofing frame. The central part is clamped and fixed to the opening edge of the reinforcing frame with two types of fasteners, one for the ends and the other for the center, each made of a wire with high spring properties, and the fastener for the ends The wire rod is formed by bending the wire rod into a spiral shape with both bent ends facing in the same direction, and the middle portion facing the bent ends stands diagonally upward; A wire mesh fixing device for a soundproof panel, characterized in that a wire rod bent into a shape is further folded back into a U-shape on the side, and the upper side thereof is bent into a V-shape.