JPS59143186U

JPS59143186U - ear pads

Info

Publication number: JPS59143186U
Application number: JP3507683U
Authority: JP
Inventors: 須藤　國夫
Original assignee: 国新産業株式会社
Priority date: 1983-03-11
Filing date: 1983-03-11
Publication date: 1984-09-25

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は従来技術を示すもので、第１図イは使用状態の
斜視図、第１図口は、第１図イのローロ線における断面
図。第２図、第３図は本考案の第一実施例を示したもの
で、第２図イは発音本体に取付けた状態の斜視図、第２
図口は、第２図イのローロ線断面図、第３図イにイヤー
バットの斜視図、第３図口は皮膜を形成している状態の
縦断面図、第４図イ１口は本考案の第三実施例を示すも
ので、第４図イは縦断面図、第４図口はイヤーバットの
製造状態の縦断面図である。３・・・発音本体、３ａ・・・発音部、３ｂ・・・バッ
ト取付用円板、３Ｃ・・・孔、４．１１・・・イヤーバ
ット、５・・・バット基体、５ａ・・・透孔、６．１２
・・・シートまたはフィルム、７・・・合成樹脂皮膜、
７８．１３・・・通気性のない合成樹脂皮膜、７ｂ、１
４・・・通気性のある合成樹脂皮膜、９・・・耳殻、１
０・・・保持枠、１５・・・ノズル。FIG. 1 shows the prior art, in which FIG. 1A is a perspective view of a state in use, and FIG. Figures 2 and 3 show the first embodiment of the present invention.
The figure opening is a Rolo line sectional view in Figure 2A, the perspective view of the ear butt in Figure 3A, the vertical sectional view of the earbutt in the state where the film is formed, and the Figure 4A opening. This shows a third embodiment of the invention, and FIG. 4A is a longitudinal sectional view, and FIG. 3... Sound generating body, 3a... Sound producing part, 3b... Disc for attaching the bat, 3C... Hole, 4.11... Ear bat, 5... Bat base, 5a... Through hole, 6.12
... Sheet or film, 7... Synthetic resin film,
78.13...Synthetic resin film with no air permeability, 7b, 1
4... Breathable synthetic resin film, 9... Ear shell, 1
0... Holding frame, 15... Nozzle.

Claims

[Scope of utility model registration request]

(1) In the ear bat attached to the sounding body, a through hole communicating with the sounding body is formed approximately in the middle of the bat base made of soft open-cell foamed synthetic resin, and a through hole communicating with the sounding body is formed on the surface of the bat base and the ear shell or A sheet is fixed to one or both of the surface facing the auditory canal or the mounting surface to the sounding body, and if the circumferential surface of the through hole is ≦, either one of the outer circumferential surfaces of the bat base is breathable. An ear bat characterized in that a synthetic resin film is formed on the other side, and a non-breathable synthetic resin film for sound insulation is formed on the other side.

(2) The breathable synthetic resin film is formed by spraying a thin film composition containing linear polyurethane and a volatile organic solvent, while the non-breathable synthetic resin film for sound insulation is formed by spraying a thin film composition containing linear polyurethane and a volatile organic solvent. The ear bat according to claim 1, wherein the ear bat is formed by spraying the coating composition thickly.

(3) The air-permeable synthetic resin film is formed by spraying a thin solution of linear polyurethane in a volatile organic solvent containing fine short fibers dispersed therein, and the non-air-permeable synthetic resin film for sound insulation is The ear bat according to claim 1, wherein the resin film is formed by spraying a thick solution of linear polyurethane in a volatile organic solvent containing dispersed fine short fibers. .