Two-speed fastener driver

Details Two-speed fastener driver Two-speed fastener driver

1996-04-10

1998-03-24

Smith, Scott A.

Tool driving or impacting

Automatic control of power operated means

Drive means responsive to torque or speed condition

173178, 173216, B23B 2314

Patent

active

057302324

ABSTRACT:
A two-speed fastener driving tool includes a reversible rotary motor including means to reverse, having an output shaft connected in axial alignment with a tool driving output shaft by an improved drive assembly comprising a first overrunning clutch axially aligned with the motor output shaft for providing a high speed drive connection with the tool driving output shaft when the motor is rotated in a first direction. A second overrunning clutch surrounds the first overrunning clutch and functions for providing a low speed drive connection with the tool driving output shaft when the motor is rotated in a direction opposite to the first direction.

REFERENCES:
patent: 3319494 (1967-05-01), Ulbing
patent: 3586115 (1971-06-01), Amtsberg
patent: 3589489 (1971-06-01), Fehlings
patent: 4147219 (1979-04-01), Wallace
patent: 4328871 (1982-05-01), Gluskin
patent: 4554980 (1985-11-01), Doniwa
patent: 4650007 (1987-03-01), Fujita et al.
patent: 4834192 (1989-05-01), Hansson
patent: 4881435 (1989-11-01), Hansson
patent: 4892013 (1990-01-01), Satoh
patent: 5203242 (1993-04-01), Hansson
patent: 5339908 (1994-08-01), Yokota et al.

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