192 clutches and power-stop control – Vortex-flow drive and clutch – With brake
Patent
1987-08-10
1989-05-30
Bonck, Rodney H.
192 clutches and power-stop control
Vortex-flow drive and clutch
With brake
744248R, 188134, B60T 712
Patent
active
048342254
ABSTRACT:
A no-back mechanism including a rotatable screw shaft 16, rotatable drive element 70 on the screw shaft 16, a limited lost motion connection 72 between the screw shaft 16 and the drive element 70, a thrust plate 28 on the screw shaft 16, first and second friction discs 30, 32 sandwiching the thrust plate 28 and being journaled by bearings 38, 40 for rotation with the thrust plate 28, first and second one way clutches 54, 56 respectively associated with the first and second friction discs 30, 32 for respectively allowing the first friction disc 30 to rotate in one direction but not the other and for allowing the second friction disc 32 to rotate in the other direction but not in the first direction, a ratchet ring 86, 88 surrounding the screw shaft 16, first and second oppositely directed pawls 104, 106 carried by the screw shaft 16 and engageable with the ratchet ring 86, 88 for preventing relative motion between the screw shaft 16 and the ratchet ring 86, 88 in the direction the associated pawl 104, 106 is directed, and a pawl operator 116 carried by the drive element 70 and operable to disengage one or the other of the pawls 104, 106 from the ratchet ring 86, 88, dependent upon the direction of rotation of the drive element 70 as the drive element 70 moves relative to the screw shaft 16 through the limited lost motion connection 72.
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patent: 4697672 (1987-10-01), Linton
Klopfenstein Brent A.
Lang David J.
Bonck Rodney H.
Lorence Richard M.
Sundstrand Corporation
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