Variable speed gearing in rotary electric tool

Details Variable speed gearing in rotary electric tool Variable speed gearing in rotary electric tool

1988-02-09

1989-09-26

Diehl, Dwight G.

Machine element or mechanism

Gearing

Plural power paths to and/or from gearing

74768, 81467, 173 12, F16H 362

Patent

active

048691313

ABSTRACT:
A differential gear mechanism is mounted within a gear case fixed to a housing, an intermediate gear and a clutch mechanism are disposed on at least one output side, and a rotation changes for changing over the rotation of both output shafts between synchronous rotation and independent rotation according to increase or decrease in load relative to a present torque value.

REFERENCES:
patent: 2777346 (1957-01-01), Brame
patent: 3319494 (1967-05-01), Ulbing
patent: 3430521 (1969-03-01), Kalman
patent: 3472081 (1969-10-01), Keller et al.
patent: 3513724 (1970-05-01), Box
patent: 3858444 (1975-01-01), Wallace
patent: 4147219 (1979-04-01), Wallace
patent: 4462282 (1984-07-01), Biek
patent: 4513827 (1985-04-01), Dubiel
patent: 4554980 (1985-11-01), Doniwa

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