Bicycle handlebar lock

Details Bicycle handlebar lock Bicycle handlebar lock

B - Operations, Transporting

62

H

B62H 5/04 (2006.01) E05B 71/00 (2006.01)

Patent

CA 2097818

2097818 9210392 PCTABS00013 Theft of a bicycle is discouraged by a locking mechanism (50) in the front headstem (120) that controllably engages the handlebar-attached headstem with the front fork (124) or disengages the headstem and fork for free relative rotation. A shaft (20) attached to the fork and a sleeve (40) attached to the handlebar clamp (44) are connected at a locking junction which is rotatable as a whole in the front journal of the frame. A key operated cam (54) moves a locking roller (70) radially outwardly of the shaft to engage a receptacle (74) in the sleeve for engagement or allows the roller to retract into an aperture (72) for disengagement. The shaft and sleeve have complementary conical tapers (83, 84) axially positioned by a split conical bushing (86). A cylinder lock (50) operates the cam via a key (60) having a substantially tubular configuration (64) with a uniquely configured axial end (136) for positioning lock pins against axial spring pressure.

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