Wheel-driven mode switching mechanism for cassette tape recorder

Details Wheel-driven mode switching mechanism for cassette tape recorder Wheel-driven mode switching mechanism for cassette tape recorder

1981-12-23

1985-01-22

Psitos, Aristotelis M.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Tape record

360137, 360 61, G11B 1500, G11B 1700, G11B 1512

Patent

active

044955359

ABSTRACT:
A mode switching mechanism comprises a driving toothed wheel driven by a motor, a driven wheel having first and second coaxially mounted cams for rotation therewith, a toothed circumferential portion for providing meshing contact with the driving wheel and a toothless circumferential portion for providing out of meshing contact with the driving wheel. The driven wheel is normally urged so that it comes into meshing contact with the driving wheel. A spring-biased rotatable trigger lever is arranged to lock the driven wheel in a position out of meshing contact with the driving wheel and unlock it in response to the operation of any one of tape operating mode keys to establish the meshing contact to thereby allow the driven wheel to be rotated by the driving wheel. A a first cam follower is movable to a recording/playback position by camming contact with the second cam in response to the operation of one of the recording and playback mode keys, and a second cam follower is movable to a rewind/fast-forward position by camming contact with the second cam in response to the operation of one of the rewind and fast-forward mode keys.

REFERENCES:
patent: 4214283 (1980-07-01), Fushimi et al.
patent: 4219852 (1980-08-01), Magata et al.
patent: 4225894 (1980-09-01), Fulukawa et al.
patent: 4336560 (1982-06-01), Matsumoto
patent: 4360846 (1982-11-01), Asai et al.

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