| 摘要 |
In a tape playback and, or recorder apparatus, of the type in which a first arm movable with respect to the frame carries at least a playback magnetic head, a second arm movable with respect to the frame carries a pressure roller and a fast movement lever is shifted in opposite directions starting from a rest position in which it sets the kinematic elements for the normal speed feeding towards one of the two positions in which it sets the kinematic elements for the fast running of the tape in one of the two directions to cause the fast rewinding or winding of the tape, it is provided for the use of a device for keeping operative and controllably disabling the fast running movement of the tape, for instance in order to be able to carry out, in combination with an electronic circuit not being a part of the present invention, the search of a particular prerecorded passage. The present device comprises means elastically fixable to the frame and releasable from it on a control coming from the cited electronic search circuit, for releasably keeping the fast movement lever in each of its two positions of fast running of the tape and arm lever means for causing the arms to move during the motion of the fast movement lever so as to take the pressure roller away from the capstan and carry the playback head away from the position of pressure contact with the tape. |
