| 摘要 |
<p>A disengageable coupling between a drive shaft and a driven shaft, in particular for powered trolleys for overhead transportation of loads on a monorail, comprises, in combination: two axial shafts (14, 15), the former keyed to the output shaft of a motor (10) and the latter keyed to the drive wheel (11) of the trolley, a rail mounted cam contacting a sensor roller (32) to rotate a shaft (30) moving a rod (16) axially to disengage a clutch (13). The clutch (13) comprises balls (23) diametrical bores (21) of a head end portion (21) of the drive shaft (14), engageable with notches (24) in a socket portion (25) integral with the driven shaft (15). <IMAGE></p> |
