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Quick disconnect mechanism

  • US 4,685,550 A
  • Filed: 09/26/1985
  • Issued: 08/11/1987
  • Est. Priority Date: 09/26/1985
  • Status: Expired due to Term
First Claim
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1. A quick-disconnect mechanism for disconnecting rotatable driving and driven elements when the driving element cannot rotate and the driven element is back driven comprising, a shaft defining the driven element, a tubular member surrounding the shaft and defining the driving element, a recess at an end of said shaft, a ball slot in a shaft wall surrounding said recess, a ball in said slot having a diameter greater than the thickness of said wall, a lock member movably guided in said recess for limited movement lengthwise of said shaft and having a ball relief slot, a sleeve surrounding said wall and splined to said shaft for movement lengthwise thereof and rotation therewith, a tapered jaw clutch connecting said sleeve to said tubular member, a pair of ball relief slots formed interiorly of said sleeve and spaced lengthwise thereof for alternate coaction with said ball, and means for positioning said lock member in either a release position with the ball relief slot of the lock member aligned with said ball slot or a locking position with the ball relief slot of the member out of the alignment with the ball slot, one of said pair of ball reliefs slots in said sleeve coacting with the ball in the ball slot to hold the tapered jaw clutch engaged and the other of said pair of ball relief slots coacting with the ball in the ball slot to hold the jaw clutch disengaged.

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