JPS6268390U

JPS6268390U -

Info

Publication number: JPS6268390U
Application number: JP15964385U
Authority: JP
Priority date: 1985-10-18
Filing date: 1985-10-18
Publication date: 1987-04-28

Description

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

第１図はこの考案のヘツドホンの一実施例を示
す縦断面図、第２図はその音響回路図、第３図は
従来例とこの考案のヘツドホンの音圧―周波数特
性を示すグラフである。図面において、１はマグネツト、２はボール、
４はヨーク、５はボイスコイル、６はダイアフラ
ム、１０，１２は透孔、１１，１３は制動材、１
５はダクトパイプである。 FIG. 1 is a longitudinal sectional view showing an embodiment of the headphone of this invention, FIG. 2 is an acoustic circuit diagram thereof, and FIG. 3 is a graph showing the sound pressure-frequency characteristics of the conventional headphone and the headphone of this invention. In the drawing, 1 is a magnet, 2 is a ball,
4 is a yoke, 5 is a voice coil, 6 is a diaphragm, 10 and 12 are through holes, 11 and 13 are damping materials, 1
5 is a duct pipe.

Claims

【実用新案登録請求の範囲】[Scope of utility model registration request]

中心部に軸方向に貫通する孔を有する音響変換
ユニツトと、この音響変換ユニツトの後部に空気
室を形成するように前記音響変換ユニツトの側面
と後面を間隔を置いて取り囲むケースとを有し、
前記空気室に連通する透孔が前記ケースに複数設
けられたオープンエアー型のヘツドホンにおいて
、前記貫通孔に一端が挿入され、多端は前記ケー
スの後壁から外部に連通するダクトパイプが取付
けられていることを特徴とするヘツドホン。 an acoustic conversion unit having a hole penetrating in the axial direction in the center; and a case surrounding the side and rear surfaces of the acoustic conversion unit at intervals so as to form an air chamber at the rear of the acoustic conversion unit;
In an open air type headphone in which the case is provided with a plurality of through holes communicating with the air chamber, one end is inserted into the through hole, and the other end is attached with a duct pipe communicating with the outside from the rear wall of the case. Headphones that are characterized by: