Clutch mechanism of a push-button tuner

Details Clutch mechanism of a push-button tuner Clutch mechanism of a push-button tuner

1982-05-19

1985-05-07

Herrmann, Allan D.

Machine element or mechanism

Shaft operators

Preselected position

74 1085, 74380, 74425, 334 7, H03J 512

Patent

active

045150249

ABSTRACT:
Clutch means for changing inductance of a push-button tuner which is compact in size and adapted for use with a tape recorder. The mechanism includes flat slidable cam plates provided with cam portions at the front portions thereof, which are arranged horizontally and slidably through holes of side walls and a push-button assembly slidably arranged in front and rear walls, which is equipped with a channeling plate pivotably mounted thereon, the position of which may be set at a desired angle by means of the operation of a manual shaft when a clutch mechanism is engaged. With the advancement of the push-button assembly, a head thereof touches the cam of the clutch plate arranged in parallel with the slidable cam plate at the front of the push-button assembly whereby the clutch plate is forced to be shifted horizontally against a coil spring the biasing force of which acts on a follower manual shaft supported in an arm hole of the clutch plate which is partially released whereby the clutch mechanism is disengaged by ending the engagement of a rotation means with a gear wheel with which a worm gear mounted on the follower manual shaft is in meshing engagement.

REFERENCES:
patent: 2477995 (1945-04-01), Marholz
patent: 3022674 (1962-02-01), Cross et al.
patent: 4062243 (1977-12-01), Clark
patent: 4152682 (1979-05-01), Ito et al.
patent: 4187729 (1980-02-01), Kanai et al.
patent: 4204179 (1980-05-01), Kataoka et al.
patent: 4231263 (1980-11-01), Antonello
patent: 4326429 (1982-04-01), Mortensen

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