Earphone assembly

Details Earphone assembly Earphone assembly

1994-08-08

1996-08-06

Isen, Forester W.

Electrical audio signal processing systems and devices

Electro-acoustic audio transducer

Plural or compound reproducers

381183, 379430, H04R 2500

Patent

active

055442536

ABSTRACT:
In an earphone assembly, a front cap portion of an outer casing (5) having an electroacoustic transducing device (12) therein is made to have a substantially circular configuration being greater in diameter than other portions to be able to be fit in the cavity of the auricle. The earphone assembly has a cord supporting member (4) for a connection cord (3) of the electroacoustic transducing device (12) and a movable member (10) pivotable with respect to the outer casing (5). A protruded portion (2a) of the outer casing protrudes peripherally from a peripheral portion of the front cap member thereof. The protruded portion (11) of the movable member (10) cooperates with the peripheral portion of the front cap member of the outer casing (5) to allow the earphone to be fit in the cavity of the auricle (9).

REFERENCES:
patent: 1893143 (1933-01-01), Koch
patent: 3983336 (1976-09-01), Malek et al.
patent: 4403120 (1983-09-01), Yoshimi
patent: 4634816 (1987-01-01), O'Malley et al.
patent: 4736435 (1988-04-01), Yokoyama et al.
patent: 4965838 (1990-10-01), Kamon et al.
patent: 4972492 (1990-11-01), Tanaka et al.
patent: 5222151 (1993-06-01), Nagayoshi et al.
Patent Abstracts of Japan, vol. 15, No. 46 (E-1029), Feb. 4, 1991.

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