公开(公告)号：US4961120A

公开(公告)日：1990-10-02

申请号：US218912

申请日：1988-07-14

Applicant: Tatsuya Mototake ,  Tatsuyuki Outou ,  Yoshinori Yamamoto ,  Kenji Kawakami

Inventor： Tatsuya Mototake ,  Tatsuyuki Outou ,  Yoshinori Yamamoto ,  Kenji Kawakami

IPC: G11B15/43 ,  G11B15/20 ,  G11B15/22 ,  G11B15/44 ,  G11B15/665

CPC classification number: G11B15/6658 ,  G11B15/20 ,  G11B15/22 ,  G11B15/442

Abstract: A recording and/or reproducing apparatus for a magnetic tape cassette has a back-tension arm pivotably mounted on a mechanical chassis of the apparatus and an actuator mechanism for releasing braking force applied on a pair of tape reel bases by a pair of braking arms while a magnetic tape is run at a high-speed speed. The actuator mechanism includes an axially sliding connector rod engaging with a slider through which said back-tension arm is actuated according to movement of the connector rod, whereby the back-tension arm may apply light friction to the take-up reel base in a reverse running mode in which the magnetic tape is fed from the take-up reel to the supply reel by rotation of a capstan and pinch roller at a relatively slow speed. This causes slack in the magnetic tape to prevent when the tape is started in the reverse running mode.

公开(公告)号：US4925127A

公开(公告)日：1990-05-15

申请号：US201435

申请日：1988-06-02

Applicant: Tatsuyuki Outou ,  Hisanori Watanabe

Inventor： Tatsuyuki Outou ,  Hisanori Watanabe

IPC: G11B15/18 ,  G11B15/22 ,  G11B15/44

CPC classification number: G11B15/1883 ,  G11B15/22 ,  G11B15/442

Abstract: In a drive mechanism for driving tape recorder reel bases wherein a mode-change lever is operated to change modes and a drive gear rotatably mounted to the change lever selectively engages one of the pair of reel bases, a reciprocating brake member in provided that is capable of engaging the reel bases in a return position to lock the reel bases. Further engagement portions for engaging the brake member with the change lever are provided, so that the drive gear engages one of the reel bases only after the brake member has been disengaged from the pair of reel bases and, on the other hand, the brake member engages the pair of reel bases only after the drive gear has been disengaged from the one of the reel bases.