192 clutches and power-stop control – Clutches – Automatic
Patent
1998-01-30
1999-03-16
Bonck, Rodney H.
192 clutches and power-stop control
Clutches
Automatic
192 541, 192 72, 192 75, 192 81C, F16D 1308, F16D 1312
Patent
active
058818553
ABSTRACT:
A rotary impulse tool has a motor-driven drive shaft and an output shaft. The drive shaft is threadedly coupled to a flywheel sleeve, which is spring-biased forwardly and is splined to a rotatable race structure of a wrap spring clutch assembly, which includes a wrap spring disposed in clearance fit coaxially between cylindrical surfaces of the race structure, the wrap spring having a front end fixed to the output shaft and a rear end coupled to a first conical control member. A second conical control member is axially movable between engaged and disengaged positions relative to the first control member for, respectively, shifting the clutch assembly to an engaged condition for transmitting torque between the drive and output shafts and a disengaged condition for decoupling those shafts. When the clutch assembly is engaged, the drive shaft rotates the output shaft and, as torque builds up on the output shaft, it slows to develop a speed differential between the drive and output shafts, which retracts the flywheel sleeve rearwardly against a compression spring to engage the second control member and move it axially to its disengaged position for disengaging the clutch assembly, whereupon the flywheel sleeve rapidly rotatably and axially returns forwardly, engaging the second control member to move it back to its engaged position and reengage the clutch assembly to transmit the kinetic energy of the flywheel sleeve in an impulse to the output shaft.
REFERENCES:
patent: 1954620 (1934-04-01), Connell
patent: 2100552 (1937-11-01), Ripsch et al.
patent: 2111280 (1938-03-01), Connell
patent: 3476418 (1969-11-01), Noerr, Jr.
patent: 3478829 (1969-11-01), Bixby
patent: 3955662 (1976-05-01), Thackston
patent: 3956905 (1976-05-01), Thackston
patent: 4078618 (1978-03-01), DePagter et al.
patent: 4243129 (1981-01-01), Schoeps
patent: 4328871 (1982-05-01), Gluskin
patent: 4610339 (1986-09-01), Ciolli
patent: 4760903 (1988-08-01), Stegelmeier et al.
patent: 4875528 (1989-10-01), Thackston
patent: 4892175 (1990-01-01), Van Erden et al.
patent: 4920836 (1990-05-01), Sugimoto et al.
patent: 4977788 (1990-12-01), Besemann
patent: 4984666 (1991-01-01), Orii et al.
patent: 5135086 (1992-08-01), Ciolli
patent: 5139093 (1992-08-01), Lyon et al.
patent: 5191946 (1993-03-01), Lyon et al.
patent: 5305835 (1994-04-01), Campbell et al.
patent: 5318161 (1994-06-01), Lyga
patent: 5325950 (1994-07-01), Kimberlin
patent: 5350025 (1994-09-01), Campbell et al.
patent: 5399129 (1995-03-01), Ciolli
patent: 5437205 (1995-08-01), Tseng
patent: 5460252 (1995-10-01), Kosugi et al.
patent: 5673758 (1997-10-01), Sasaki et al.
patent: 5735183 (1998-04-01), Sasaki et al.
Iwinski Dean J.
Putney Gordon A.
Bonck Rodney H.
Snap-on Technologies, Inc.
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