| 摘要 |
<p>PURPOSE:To use only one cam by providing a cam which has cam surfaces corresponding to respective operation of a device, and performing the respective operations through a mechanism that is associated operatively with a follower which slides on the cam surfaces. CONSTITUTION:An operation pin 7a as the follower of an operation arm 7 slides on cam surfaces 8c, 8d, 8e, and 8f, a cam gear 8 engages a driving gear 9 except an untoothed part 8g, and a projection part 8a abuts on a spring 18. Said cam surfaces come into slide contact with the operation pin 7a, which stops at positions 8g, 8h, and 8i of cam surfaces 8c, 8d, and 8f in rapid traverse, rewind, and pause modes. For example, when a stop mode is switched to the rewind mode, the cam surface 8c contacts the operation pin 7a by the rotation of the cam gear 8, and the arm 7 further rotates in a direction F. A projection part 8b which rotates in the direction F is engaged by the lock part 6a of a start arm 6 which moves in a direction E by being pressed with a rewind lever 2, and the cam gear 8 stops to rotate an interlocking lever 20b in the direction F by a projection part 20a.</p> |
