| 摘要 |
A reel torque device for a video cassette tape recorder including a middle gear assembly having a single clutch mechanism functioning to convert the drive force from an idler mechanism into a desired torque and transmit it. The single clutch mechanism includes a frictional plate fitted around a middle boss and provided with at the lower surface with a felt, a flange fitted around the middle boss beneath the frictional plate so as to be selectively in contact with the felt, a compression coil spring interposed between the middle gear and the frictional plate and adapted to urge downwardly the frictional plate away from the middle gear, and a middle pulley fitted around the flange and connected with a drive mechanism by a belt and adapted to be upwardly and downwardly moved with respect to the flange by lifting mechanism so as to convert the drive force of said drive mechanism into a torque which varies depending on the rotation direction of drive mechanism and transmit it. With this construction, the overall construction of the recorder is simplified, thereby enabling compactness and lightness thereof.
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