Toren, McGeady and Stanger
Dual spring loaded operating mechanism for a tape recorder
 A tape recorder capable of pressing a pinch roller against a capstan shaft with a slight pressing force in the pause state which includes an operation lever reciprocally moved by interlocking with recording, reproducing and stopping operations; a rotational lever rotated by interlocking with the operational lever and effected by a predetermined biasing force; a pinch roller supporting metal fitting interlocking only with the rotation in response to the recording or reproducing operation of the rotational lever and given the biasing force as a force pressing the pinch roller against the capstan shaft; a small spring having a comparatively small biasing force interposed between the supporting metal fitting and the rotational lever; and a play lever reciprocally moved by interlocking with the recording, reproducing and stopping operations, so as to rotate the pinch roller supporting metal fitting and to make the pinch roller contact the capstan shaft. 
G G
G11B G11B
inventional inventional
Shoichi Hiroyuki
Saito Yamada