Release mechanism for a push-button tuner

Details Release mechanism for a push-button tuner Release mechanism for a push-button tuner

1982-02-18

1984-08-28

Herrmann, Allan D.

Machine element or mechanism

Shaft operators

Gear drive

74 1033, 744248A, 334 7, H03J 512, F16H 118

Patent

active

044676719

ABSTRACT:
A release mechanism of a push-button tuner for use in car radios etc., comprising a manual tuning shaft which has a threaded portion, a release plate which is movably and turnably installed on a guide rod disposed in parallel with the manual tuning shaft and which is provided with a friction plate corresponding to the threaded portion, a core carriage which moves in the same direction as a moving direction of the release plate in interlocking with a movement thereof, and a release plate which is operated by depressing a push button. The friction plate and the threaded portion are held in engagement in the normal state, and the engagement is released when the push button is depressed.

REFERENCES:
patent: 1075888 (1913-10-01), Wolff
patent: 1500099 (1924-07-01), Anderson
patent: 3724280 (1973-04-01), Olah
patent: 3730008 (1973-05-01), Sheesley
patent: 4118992 (1978-10-01), Yamagishi
patent: 4184379 (1980-01-01), Bevacqua
patent: 4262547 (1981-04-01), Kanai et al.
patent: 4267739 (1981-05-01), Nishikawa et al.

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