Changeover mechanism for pushbutton tuner

Details Changeover mechanism for pushbutton tuner Changeover mechanism for pushbutton tuner

1979-06-04

1981-05-26

Herrmann, Allan D.

Machine element or mechanism

Shaft operators

Preselected position

334 7, H03J 512

Patent

active

042690749

ABSTRACT:
A changeover mechanism for a multi-band pushbutton tuner in which a plurality of button slides with push buttons secured thereto, respectively, have each a pair of auxiliary slide members disposed on opposite sides thereof, lock members are mounted on pivotal seats of the button slides so as to rock thereon, respectively, and a changeover plate has operative portions which are engageable with cam portions formed on the respective upper edges of the lock members, to change over the position of the lock members relative to the button slides by displacement of the changeover plate, which mechanism is characterized in that the changeover plate is provided with an operative projection which is engageable with an operative member rotatably mounted on a support frame provided over an area where the push buttons are disposed, the operative member is engageable, at opposite ends thereof, with interlocking links, respectively, and the interlocking links are connected to push-actuators provided on opposite ends of the support frame, respectively.

REFERENCES:
patent: 3415129 (1968-12-01), Stamm
patent: 3463017 (1969-08-01), Stamm et al.
patent: 3646821 (1972-03-01), Clark
patent: 3722299 (1973-03-01), Knight
patent: 3995242 (1976-11-01), Chaki
patent: 4003266 (1977-01-01), Yamagishi
patent: 4010652 (1977-03-01), Sugimoto et al.
patent: 4079631 (1978-03-01), Chaki

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