Rotary power tool

Details Rotary power tool Rotary power tool

1984-04-05

1987-03-17

Schran, Donald R.

Tool driving or impacting

Automatic control of power operated means

Tool advance causing or controlling means

192114R, 192 56R, B23Q 504

Patent

active

046500073

ABSTRACT:
A rotary power tool wherein an epicyclic train has a planet gear support frame coupled to an output shaft by a one-way clutch and a sun gear coupled to the output shaft by a clutch assembly which comprises a clutch plate, a slide tube, an arresting mechanism and a change lever, the output shaft being operable for tightening first with low-torque high-speed rotation and finally with high-torque low-speed rotation and being prevented from abruptly rotating at a high speed even if the load on the output shaft decreases.

REFERENCES:
patent: 3266607 (1966-08-01), Frisbie
patent: 3398611 (1968-08-01), Hahner
patent: 4006785 (1977-02-01), Roll et al.
patent: 4215594 (1980-08-01), Workman, Jr. et al.
patent: 4265320 (1981-05-01), Tanaka et al.
patent: 4458565 (1984-07-01), Zilly et al.

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