JPH0516637Y2

JPH0516637Y2 -

Info

Publication number: JPH0516637Y2
Application number: JP12307587U
Authority: JP
Priority date: 1987-08-11
Filing date: 1987-08-11
Publication date: 1993-04-30
Anticipated expiration: 2002-08-11
Also published as: JPS6429699U

Description

【考案の詳細な説明】（産業上の利用分野）この考案は例えば扉として好適な防音板に関す
る。[Detailed Description of the Invention] (Industrial Application Field) This invention relates to a soundproof board suitable for use as a door, for example.

（従来技術）従来この種防音板として、以下の如きものは知
られている。即ち、防音効果を有する鉛板や、鉛
粉を混入したプラスチツクシートを防音板を構成
する前板又は後板に裏打ちしたものは知られてい
る。(Prior Art) Conventionally, the following types of soundproof boards are known as this type of soundproof board. That is, it is known that the front or back plate constituting the soundproof board is lined with a lead plate having a soundproofing effect or a plastic sheet mixed with lead powder.

（従来技術の欠点）前記従来防音板には以下の如き欠点があつた。
即ち、鉛板や、鉛粉を混入した軟質プラスチツク
シートは、重量が重く、運搬や施工が大変である
という欠点があつた。(Disadvantages of the Prior Art) The conventional soundproof board has the following disadvantages.
That is, lead plates and soft plastic sheets mixed with lead powder have the disadvantage that they are heavy and difficult to transport and install.

（考案の目的）この考案は上記欠点を解消するためになされた
ものであつて、軽量の防音板を提供することを目
的とするものである。(Purpose of the invention) This invention was made in order to eliminate the above-mentioned drawbacks, and its purpose is to provide a lightweight soundproof board.

（実施例）以下にこの考案を図面に示す実施例に基づいて
説明する。(Example) This invention will be described below based on an example shown in the drawings.

第１図〜第３図に示す如く、枠体１と、その枠
体１の前後面に当てられた前後板２とによつて内
部３が中空となされ、この中空内部３に木・合成
樹脂等の金属以外の素材からなる芯材４が収めら
れ、この芯材４に、その前後面から多数の円錐形
や角錐形の吸音凹所５が形成され、前側の吸音凹
所５の尖端部と、後側の吸音凹所５の尖端部とが
相互にずれており、これら吸音凹所５の内面に多
数の吸音小凹所６が形成されている。 As shown in FIGS. 1 to 3, an interior 3 is made hollow by a frame 1 and front and rear plates 2 applied to the front and rear surfaces of the frame 1, and this hollow interior 3 is filled with wood or synthetic resin. A core material 4 made of a material other than metal, such as and the tip of the rear sound-absorbing recess 5 are offset from each other, and a large number of small sound-absorbing recesses 6 are formed on the inner surface of these sound-absorbing recesses 5.

なお、第４図及び第５図に吸音小凹所６の変形
例を示す。 Note that FIGS. 4 and 5 show modified examples of the small sound-absorbing recess 6.

（実施例の作用）次に実施例板の作用を説明する。(Effect of Example) Next, the function of the example plate will be explained.

防音板に当つた音は、前側の錐形の吸音凹所５
と、後側の錐形の吸音凹所５とによつて形成され
た凹凸の激しい吸音空間及び吸音小凹所６内で反
射・減衰させられる。 The sound that hits the soundproof board is absorbed by the conical sound-absorbing recess 5 on the front side.
The sound is reflected and attenuated within the highly uneven sound-absorbing space and the small sound-absorbing recess 6 formed by the conical sound-absorbing recess 5 on the rear side.

（考案の効果）以上の次第でこの考案によれば、従来と相違し
て、鉛板や、鉛粉を混入した軟質プラスチツクシ
ートを使用せず、木・合成樹脂等の金属以外の素
材からなる芯材４に形成された多数の吸音凹所５
によつて、音を吸収するようにしたものであるか
ら、重量が軽く、運搬や施工が楽である。また、
前側の錐形の吸音凹所５と、後側の錐形の吸音凹
所５とによつて凹凸の激しい吸音空間を簡単に形
成することが出来るので、吸音を効率よく行なう
ことが出来る。(Effects of the invention) As described above, according to this invention, unlike conventional methods, it does not use lead plates or soft plastic sheets mixed with lead powder, but is made of materials other than metal such as wood or synthetic resin. A large number of sound-absorbing recesses 5 formed in the core material 4
Since it is designed to absorb sound, it is light in weight and easy to transport and install. Also,
Since a sound-absorbing space with severe unevenness can be easily formed by the conical sound-absorbing recess 5 on the front side and the conical sound-absorbing recess 5 on the rear side, sound absorption can be carried out efficiently.

[Brief explanation of the drawing]

図面はこの考案の実施例を示すものであつて、
第１図は中間省略の縦断面図、第２図は第１図
−線に沿う中間省略の断面図、第３図は吸音凹
所の拡大側面図、第４図及び第５図は吸音凹所の
変形例の側面図である。１……枠体、２……前後板、３……中空内部、
４……芯材、５……吸音凹所、６……吸音小凹
所。 The drawings show an embodiment of this invention,
Figure 1 is a vertical sectional view with the middle omitted, Figure 2 is a sectional view along the line of Figure 1 with the middle omitted, Figure 3 is an enlarged side view of the sound-absorbing recess, and Figures 4 and 5 are the sound-absorbing recess. FIG. 6 is a side view of a modified example. 1... Frame body, 2... Front and rear plates, 3... Hollow interior,
4...Core material, 5...Sound absorbing recess, 6...Sound absorbing small recess.

Claims

[Claims for Utility Model Registration] 1. The frame 1 and the front and rear plates 2 placed on the front and rear surfaces of the frame 1 form a hollow interior 3, and this hollow interior 3 is filled with wood, synthetic resin, etc. A core material 4 made of a material other than metal is contained, and in this core material 4,
A soundproof board in which a large number of conical sound-absorbing recesses 5 are formed from its front and rear surfaces. 2 The tip of the front sound-absorbing recess 5 and the tip of the rear sound-absorbing recess 5 are offset from each other, and a large number of small sound-absorbing recesses 6 are formed on the inner surface of these sound-absorbing recesses 5. A soundproof board according to claim 1 of the utility model registration claim.