JPS647611U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図乃至第３図は本考案に係る壁体開口部の
遮音構造の実施例を示し、第１図は第２図の―
線断面図、第２図は要部の一部切欠正面図、第
３図は全体の概略断面図である。第４図乃至第８
図は夫々別の実施例を示す要部の断面図であり、
また、第９図乃至第１１図は夫々従来の壁体開口
部の遮音構造を示す概略断面図である。 １…壁体、１ａ，１ｂ…内壁面、１，３…開口
部、４…遮音膜、４Ａ…鉛繊維製生地、４ａ…切
目、４ｂ…帯状膜、７…吸音材。 Figures 1 to 3 show examples of the sound insulation structure for wall openings according to the present invention, and Figure 1 is the same as in Figure 2.
2 is a partially cutaway front view of the main part, and FIG. 3 is a schematic sectional view of the whole. Figures 4 to 8
The figures are cross-sectional views of main parts showing different embodiments,
Further, FIGS. 9 to 11 are schematic cross-sectional views showing conventional sound insulation structures for wall openings, respectively. DESCRIPTION OF SYMBOLS 1... Wall body, 1a, 1b... Inner wall surface, 1, 3... Opening, 4... Sound insulation film, 4A... Lead fiber fabric, 4a... Cut, 4b... Band-shaped membrane, 7... Sound absorbing material.

Claims (1)

【実用新案登録請求の範囲】 １ 壁体１の開口部３に、この開口部３を閉塞又
はほぼ閉塞する遮音材４を設けてある壁体開口部
の遮音構造であつて、前記遮音材４を、開口部３
内外方向に変位可能に垂下される可撓性の遮音膜
から構成し、この遮音膜４を、前記開口部３の内
外方向に所定間隔を隔てて複数個並設するととも
に、これら隣接遮音膜４，４間に位置する開口部
３の内壁面１ａ，１ｂに吸音材７を設けてある壁
体開口部の遮音構造。 ２ 前記遮音膜４は、前記開口部３の横幅方向に
所定間隔を隔てた複数箇所において、その下端辺
から少なくとも通過対象物が通過する高さ以上に
及ぶ切目４ａが形成されたものである実用新案登
録請求の範囲第１項に記載の壁体開口部の遮音構
造。 ３ 前記遮音膜４は鉛繊維製の生地４Ａを備えた
ものである実用新案登録請求の範囲第１項又は第
２項に記載の壁体開口部の遮音構造。 ４ 前記遮音膜４，４の隣接間隔が通過対象物の
前端幅よりも大に構成されたものである実用新案
登録請求の範囲第１項ないし第３項のいずれか一
つに記載の壁体開口部の遮音構造。 ５ 前記遮音膜４の、前記切目４ａによつて分離
された複数の帯状体４ｂは、その隣接側辺同志が
開口部３の内外方向で重合するように構成された
ものである実用新案登録請求の範囲第２項に記載
の壁体開口部の遮音構造。[Claims for Utility Model Registration] 1. A sound insulating structure for a wall opening, in which an opening 3 of a wall 1 is provided with a sound insulating material 4 that closes or almost closes the opening 3, wherein the sound insulating material 4 , opening 3
It is composed of a flexible sound insulating film that hangs down so as to be able to be displaced in the outward and outward directions. , 4. A sound insulation structure for a wall opening is provided with a sound absorbing material 7 on the inner wall surfaces 1a and 1b of the opening 3 located between the openings 3 and 4. 2. The sound insulating film 4 has cuts 4a formed at a plurality of locations at predetermined intervals in the width direction of the opening 3, extending from the lower end side at least to a height above which an object passes. A sound insulation structure for a wall opening according to claim 1 of the patent registration claim. 3. The sound insulating structure for a wall opening according to claim 1 or 2, wherein the sound insulating membrane 4 is provided with a fabric 4A made of lead fiber. 4. The wall body according to any one of claims 1 to 3 of claims 1 to 3, wherein the distance between the sound insulating films 4, 4 is larger than the width of the front end of the object passing through. Sound insulation structure for the opening. 5. A utility model registration claim in which the plurality of strips 4b of the sound insulating film 4 separated by the cuts 4a are configured such that their adjacent sides overlap in the inner and outer directions of the opening 3. A sound insulating structure for a wall opening according to scope 2.