JPH0455062Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] This invention relates to an attachment device for a joint cover that is attached to prevent sound leakage from the joints of a soundproof wall.

[Conventional technology]

Figures 4 and 5 show a conventional joint cover mounting device of this type. In Figure 4, 1 is a soundproof wall made by joining a plurality of soundproof boards, 2 is a joint cover, and 3 is its installation. These are bolts, and 4 in FIG. 5 is a buffer plate. In addition, Figure 6 is the 5th
The installation sectional view of the figure is shown.

As described above, in the conventional method, the straight seam cover 2 is directly attached to the seam of the soundproof wall 1 (Fig. 4).
Alternatively, as shown in FIG. 5, it was attached via a buffer plate 4.

[Problem that the invention attempts to solve]

However, with conventional seam covers that are straight before installation, when the seam cover is installed on a soundproof wall joint, there are parts between the bolts of the seam cover where the tightening force of the bolts cannot reach, and the seam cover does not meet the mounting surface. This may result in incomplete contact, causing chattering noise at that location, or creating a gap between the joint cover and the soundproof wall between the bolts, causing problems such as sound leakage. In addition, when bolting the joint cover to the soundproof wall via a buffer plate, it is difficult to adjust the bolt tightening force, and if the bolt is tightened too much, the joint cover will wave and look unsightly, and may cause sound leakage. If it is not tightened enough, there will be problems such as the soundproof boards not being firmly fixed together.

This invention was devised to solve the above-mentioned problems, and uses a simple structure to allow the joint cover to firmly adhere to the joint portion of the soundproof wall.

[Means for solving problems]

The joint cover mounting device for a soundproof wall according to this invention has a joint cover with a wavy shape, a bolt insertion hole is provided in the crest of the joint cover, and the crest of the wavy part is tightened with a bolt, so that the joint cover becomes straight after installation. They should be installed closely together.

[Effect]

In this invention, the seam cover is formed into a wavy shape before installation, and when installing it to the soundproof wall joint, the ridges of the wave are fixed to the soundproof wall with bolts, and after it is fixed, the seam cover is straight. The reaction force of the seam cover causes the seam cover to adhere tightly to the soundproof wall between the bolts.

〔Example〕

Figure 1 shows one embodiment of this invention.
5 is a soundproof wall, 5 is a corrugated seam cover, 6 is a bolt hole provided in the crest of the corrugation, and 3 is a mounting bolt.

In such a thing, the corrugated seam cover 5
When the mounting bolts 3 are passed through the bolt holes 6 in the peaks of the bolts 6 and are tightened to the soundproof wall 1, and the joint cover 5 is installed so that it is straight after installation, the joint cover 5 can be tightened even between the bolts of the joint cover 5, that is, where there is no tightening force of the mounting bolts. Due to its own reaction force, it is pressed into close contact with the soundproof wall 1.

Note that FIG. 2 shows another embodiment of this invention using a buffer plate, in which a stop plate 7 having approximately the same thickness as the buffer plate 4 is provided on the back side of the mounting bolt portion of the corrugated seam cover 5. This eliminates over-tightening or under-tightening of the buffer plate, making the tightening work easy, and after tightening, the seam cover is straight and looks good, and the reaction force of the seam cover is reduced between the mounting bolts of the seam cover. Since the buffer plate is pressed against the soundproof wall and comes into close contact with it, sound leakage due to gaps etc. can be prevented.

[Effect of idea]

As explained above, this idea has a simple configuration in which the seam cover is made into a wavy shape, thereby eliminating the gap between the mounting bolts of the seam cover that causes chatter and sound leakage due to incomplete contact with the soundproof wall. It has the effect of being able to.

[Brief explanation of the drawing]

Figure 1 is a perspective view showing one embodiment of this invention, Figure 2 is a perspective view showing another embodiment of this invention, and Figure 3 is a perspective view showing another embodiment of this invention.
The figure is a partial sectional view of FIG. 2. 4 and 5 are perspective views showing conventional devices of this type, respectively, and FIG. 6 is a partially sectional view of FIG. 5. In the figure, 1 is a soundproof wall, 3 is a mounting bolt, 4 is a buffer plate, 5 is a joint cover, 6 is a bolt hole, and 7 is a stop plate. Note that the same reference numerals in the figures indicate the same or corresponding parts.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) In the case where a seam cover is attached with bolts to the seam of a soundproof wall made up of a plurality of soundproof boards joined together, bolts are attached to the crests of the undulations of the seam cover that has a wavy shape. A soundproof wall joint cover mounting device characterized in that a hole is provided and a bolt is inserted into the bolt hole and tightened and fixed. (2) A utility model characterized in that the joint cover is attached with bolts through a buffer plate, and at the same time, a ring-shaped stopper plate having approximately the same thickness as the buffer plate is interposed at the location where the bolt passes through the buffer plate. A soundproof wall joint cover mounting device as claimed in claim 1.