| 摘要 |
The coupling comprises a drive hub affixed to the drive shaft, and an axially extending projection disposed on one of the drive hub and the brush having a self surface and an inclined cam surface. There is a recess defined by the other of the drive hub and the brush adapted to accept the projection. The projection and recess has a number of interfitting splines and splineways for preventing relative rotation between the brush and the hub. There is a spring retainer affixed to the other of the hub and the brush which has first and second legs and tabs, the legs covering a diametrically opposed pair of the splineways where the legs are in an initial position. The cam surface is adapted to elastically spread the legs from the initial position to allow the projection to be inserted within the recess, the legs thereafter engaging the shelf surface to prevent removal of the projection from the recess. |
