Transmission unit for office machine

Details Transmission unit for office machine Transmission unit for office machine

1996-08-13

1998-04-21

Bonck, Rodney H.

Machine element or mechanism

Gearing

Interchangeably locked

74397, 74405, 74406, 74421A, 475 15, F16H 334

Patent

active

057406960

ABSTRACT:
A transmission unit mounted on the machine base of an office automation machine and covered with a cover and controlled to turn a first roller and a second roller, including a gear transmission mechanism, a first roller transmission mechanism driven and a second roller transmission mechanism respectively driven by the gear transmission mechanism to turn the rollers, wherein the gear transmission mechanism includes a motor, a rounded seat raised from the machine base, a drive gear mounted on the rounded seat and coupled to the motor, an annular gear holder revolvably mounted around the rounded seat and having an upright gear shaft, an upright axle raised from the machine base adjacent to the rounded seat, a crank having a pivot hole at one end coupled to the upright axle and a gear shaft at an opposite end, a first planet gear revolvably mounted around the gear shaft of the crank and driven by the drive gear to turn the first roller transmission mechanism, a second planet gear revolvably mounted around the gear shaft of the annular gear holder and driven by the drive gear to turn the second roller transmission mechanism; the cover has an arched slot, which receives the gear shaft of the annular gear holder to guide the movement of the second planet gear along the teeth of the drive gear within a fixed angle.

REFERENCES:
patent: 2610520 (1952-09-01), Snow
patent: 3670861 (1972-06-01), Zenner et al.
patent: 3943786 (1976-03-01), Mills
patent: 4478313 (1984-10-01), Wakase

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