192 clutches and power-stop control – Clutches – Automatic
Patent
1988-06-16
1990-03-20
Bonck, Rodney H.
192 clutches and power-stop control
Clutches
Automatic
56 116, 56 118, 192 39, 192 46, 192 50, F16D 4112, F16D 4300
Patent
active
049093657
ABSTRACT:
A bidirectional freewheeling clutch assembly (50) and a self-propelled walk-behind lawn mower (10) including same are disclosed. Lawn mower (10) preferably includes a prime mover (18) which can be selectively coupled to a gear box (34). The output shaft (44) of gear box (34) extends to a pair of clutch assemblies (50) which selectively apply torque to a pair of gear driven wheels (16). Each clutch assembly (50) includes as its basic components a key (68) and a friction disk (66). Key (68) has a wedge portion (74) which rocks within an axial first keyway (62), and a tang portion (76) which is received within a tang relief (84) in friction disk (66). When shaft (44) is rotated friction disk (66) frictionally engages the housing (12) of mower (10) and applies a drag force to the tang portion (76) of key (74) to cause it to cock and positively engage a pinion (46) which engages a gear (48) attached to drive wheel (16). When gear box output shaft (44) is not rotated key (68) is not cocked and pinion (46) and drive wheel (16) can bidirectionally freewheel.
REFERENCES:
patent: 967006 (1910-08-01), Feile
patent: 1396343 (1921-11-01), Richardson
patent: 1466214 (1923-08-01), Thompson
patent: 2366912 (1945-01-01), Lauper
patent: 2531819 (1950-11-01), Lewis
patent: 2784820 (1957-03-01), Clark
patent: 2838124 (1958-06-01), Cramer
patent: 2998871 (1961-09-01), Horn
patent: 3300003 (1967-01-01), Peterson et al.
patent: 3463280 (1969-08-01), Hoffman et al.
patent: 3511348 (1970-05-01), Jonsson et al.
patent: 3720294 (1973-03-01), Plamper
patent: 4076108 (1978-02-01), Fogelberg
patent: 4089387 (1978-05-01), Cook
patent: 4116314 (1978-09-01), Ackerman
patent: 4126214 (1978-11-01), Kiss
patent: 4327539 (1982-05-01), Bricko et al.
patent: 4554780 (1985-11-01), Umeno et al.
Toro Parts Catalog Form No. 3312-606, entitled: 21", S.P. Rear Bagger, The Toro Company-1985.
Scherbring David J.
Tillotson Henry B.
Bonck Rodney H.
Buckley R. Lawrence
The Toro Company
LandOfFree
Freewheeling clutch and implement employing same does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Freewheeling clutch and implement employing same, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Freewheeling clutch and implement employing same will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-786239