JPS6395388U - - Google Patents

Description

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

第１図及び第２図はこの考案に係るイヤホンの
第１の実施例を示し、第１図はイヤホンの縦断側
面図、第２図は装飾部の背面図、第３図は第２の
実施例を示す第１図と同様のイヤホンの縦断側面
図、第４図は再生音圧周波数特性を示す図、第５
図及び第６図は第３の実施例を示し、第５図は第
１図と同様のイヤホンの縦断側面図、第６図は当
該実施例の装飾部の背面図、第７図は第３実施例
の再生音圧周波数特性を示す図、第８図及び第１
０図は従来のイヤホンの縦断側面図で、第９図は
従来イヤホンの再生音圧周波数特性を示す図であ
る。 １０……イヤホン、１１……ハウジング、１２
……ドライバーユニツト、２３……空室、２４…
…音響管、２５……第１音響室、２６……フラン
ジ部、２７……装飾部、２８……仕切壁、２９…
…管路、３０……入口開口部、３１……出口開口
部、３２……接続管、３３……フランジ部。 1 and 2 show a first embodiment of the earphone according to this invention, FIG. 1 is a vertical side view of the earphone, FIG. 2 is a back view of the decorative part, and FIG. 3 is a second embodiment of the earphone. A vertical side view of the earphone similar to Figure 1 showing an example, Figure 4 is a diagram showing the reproduced sound pressure frequency characteristics, and Figure 5 is a diagram showing the reproduced sound pressure frequency characteristics.
6 and 6 show the third embodiment, FIG. 5 is a vertical side view of the earphone similar to that in FIG. 1, FIG. 6 is a rear view of the decorative part of the embodiment, and FIG. Figures 8 and 1 showing reproduction sound pressure frequency characteristics of Examples
FIG. 0 is a vertical side view of a conventional earphone, and FIG. 9 is a diagram showing reproduction sound pressure frequency characteristics of the conventional earphone. 10...Earphone, 11...Housing, 12
...Driver unit, 23...Vacant room, 24...
...Acoustic tube, 25...First acoustic chamber, 26...Flange section, 27...Decoration section, 28...Partition wall, 29...
... Pipe line, 30 ... Inlet opening, 31 ... Outlet opening, 32 ... Connection pipe, 33 ... Flange section.

Claims (1)

【実用新案登録請求の範囲】 (1) ハウジングの背後部にアクセサリーに模し
た装飾部を設け、この装飾部内に音響管となる管
路を形成し、この管路をハウジング内部のドライ
バーユニツト背後の空室に連通すると共に、この
管路を出口開口部にて外気に開放したことを特徴
とするイヤホン。 (2) 上記装飾部を上記ハウジングに着脱自在と
したことを特徴とする実用新案登録請求の範囲第
(1)項記載のイヤホン。 (3) 上記装触部を上記ハウジングに対して回動
自在とし、この回動によつて装飾部の開口部の位
置を上記管路に対して変更できる構成としたこと
を特徴とする実用新案登録請求の範囲第(1)項記
載のイヤホン。[Claims for Utility Model Registration] (1) A decorative part resembling an accessory is provided at the rear of the housing, a conduit that becomes an acoustic tube is formed within this decorative part, and this conduit is connected to the back of the driver unit inside the housing. An earphone characterized by communicating with a vacant chamber and opening the conduit to the outside air at an outlet opening. (2) Claim No. 1 of the utility model registration claim characterized in that the decorative portion is removably attached to the housing.
Earphones described in (1). (3) A utility model characterized in that the fitting part is rotatable with respect to the housing, and the position of the opening of the decorative part can be changed with respect to the conduit by this rotation. Earphones according to registered claim (1).