SELF-LOCKING NIPPLE FOR WHEEL SPOKE AND METHOD AND APPARATUS FOR MANUFACTURING SAME

摘要

Self-locking nipple for attaching wheel spoke to wheel part. The self-locking function of the nipple is created by deforming the nipple body in a rotationally symmetrical way and over a predetermined axial distance, such that such a narrowed part is created in the internal screw-thread of the nipple which is rotationally symmetric with respect to the longitudinal axis of the nipple and extends over only one to two windings of the internal screw-thread.

主权项

1. A self-locking nipple provided for fixing a wheel spoke to a wheel part, the nipple comprising a body (1) provided for being inserted through a hole in the wheel part and having an internally threaded axial opening extending along a longitudinal axis of the nipple and being provided for receiving an externally threaded end of a wheel spoke, the internally threaded axial opening having an internal screw-thread (11) of which a narrowed part (43) provides a self-locking function to the nipple, as a result of which in use the threaded end of the wheel spoke is clamped in the axial opening of the nipple, characterised in that the narrowed part (43) of the internal screw-thread is rotationally symmetric with respect to the longitudinal axis of the nipple and extends over one to two windings of the internal screw-thread (11).