192 clutches and power-stop control – Clutches – Automatic
Patent
1991-11-12
1992-08-04
Bonck, Rodney H.
192 clutches and power-stop control
Clutches
Automatic
192 33C, 192 43, 192 483, 192 81C, 192 84T, 475292, F16D 4704
Patent
active
051350866
ABSTRACT:
The assembly tool comprising an electrically operated clutch assembly and achieves rapid termination of energy throughput to provide accurate torque delivery for fastener tightening and similar applications. The clutch assembly includes a pair of equal diameter, axially aligned input and output hubs having a wrap-spring disposed thereabout. One end of the wrap-spring is coupled to the input hub and the other is coupled to a control annulus disposed concentrically and freely rotatably about the output hub. An electromagnet also concentrically disposed about the output hub is activated to couple the control annulus to the output hub. A resulting drag on the wrap-spring tightens it about the output hub and power is transmitted. Deactivation of the electromagnet provides rapid release of the wrap-spring and termination of power throughput. A one way (overrunning) clutch couples the hubs when power is applied in the opposite direction to, for example, facilitate removal of fasteners.
REFERENCES:
patent: 3302762 (1967-02-01), Conlon
patent: 3642106 (1972-02-01), Baer
patent: 3926286 (1975-12-01), Johnson
patent: 3974884 (1976-08-01), Gidlund
patent: 4030584 (1977-06-01), Lowery et al.
patent: 4159048 (1979-06-01), Baxter et al.
patent: 4321992 (1982-03-01), Gallo
patent: 4372432 (1983-02-01), Waine et al.
patent: 4427100 (1984-01-01), Rude et al.
patent: 4440280 (1984-04-01), Hagihara
patent: 4460076 (1984-07-01), Yamada
patent: 4465171 (1984-08-01), Koyama
patent: 4466522 (1984-08-01), Shibuya
patent: 4527683 (1985-07-01), Mathews
patent: 4610339 (1986-09-01), Ciolli
patent: 4638899 (1987-01-01), Kossett
patent: 4674612 (1987-06-01), Ogura
patent: 4846324 (1989-07-01), Ohsawa
PSI Data Bulletin 873 of Warner Electric Brake and Clutch Company, p. 46 of the Sep. 6, 1984 issue of Machine Design.
Bonck Rodney H.
Pitts Andrea
Star Precision Tools, Inc.
LandOfFree
Assembly tool with rapid release electromagnetic clutch does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Assembly tool with rapid release electromagnetic clutch, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Assembly tool with rapid release electromagnetic clutch will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-772850