Magnetic tape drive device
First Claim
1. A magnetic tape drive device including a drive shaft for a tape winding reel, a drive shaft for a tape rewinding reel, reel pedestals provided on both the drive shafts, respectively, a drive source for reel pedestal rotation, transmitting means for selectively transmitting a drive force from the drive source to the reel pedestals, and a first operating member for operating said transmitting means, said transmitting means comprising a rotatable changeover lever, a transmission force changeover mechanism mounted on the changeover lever and adapted to selectively contact with the reel pedestals according to the rotation of the changeover lever to transmit a drive force from the drive source to the reel pedestal, and an elastically connecting means for elastically connecting the changeover lever to the first operating member to permit the transmission force changeover mechanism to be elastically contacted with the reel pedestal through the changeover lever according to the operation of the first operating member, said transmission force changeover mechanism including a first pulley rotatably supported on the changeover lever, an endless belt placed between the first pulley and the drive source to permit the first pulley to be rotated, a second pulley rotatably supported on the changeover lever to permit it to be contacted with the endless belt, in which said second pulley is rotated in a direction opposite to that in which said first pulley is rotated, and said second pulley and endless belt are selectively elastically connected through the elastically connecting means to the corresponding reels, respectively.
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Accused Products
Abstract
A magnetic tape drive device comprises winding and rewinding reel pedestals and a changeover lever carrying a pulley and a belt which are driven by a motor. The change-over lever is swung by a plunger through a formed spring, so that the pulley or belt is elastically contacted with one of the pedestals to rotate it.
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Citations
7 Claims
- 1. A magnetic tape drive device including a drive shaft for a tape winding reel, a drive shaft for a tape rewinding reel, reel pedestals provided on both the drive shafts, respectively, a drive source for reel pedestal rotation, transmitting means for selectively transmitting a drive force from the drive source to the reel pedestals, and a first operating member for operating said transmitting means, said transmitting means comprising a rotatable changeover lever, a transmission force changeover mechanism mounted on the changeover lever and adapted to selectively contact with the reel pedestals according to the rotation of the changeover lever to transmit a drive force from the drive source to the reel pedestal, and an elastically connecting means for elastically connecting the changeover lever to the first operating member to permit the transmission force changeover mechanism to be elastically contacted with the reel pedestal through the changeover lever according to the operation of the first operating member, said transmission force changeover mechanism including a first pulley rotatably supported on the changeover lever, an endless belt placed between the first pulley and the drive source to permit the first pulley to be rotated, a second pulley rotatably supported on the changeover lever to permit it to be contacted with the endless belt, in which said second pulley is rotated in a direction opposite to that in which said first pulley is rotated, and said second pulley and endless belt are selectively elastically connected through the elastically connecting means to the corresponding reels, respectively.
Specification