| 摘要 |
The control knob locking device has a ring (18) mounted so it can slide along a cylindrical support (2) between a first position away from the control knob (16) and a second position adjacent to the control knob. The ring is locked in rotation relative to the axis (4) of the support in the adjacent position by reliefs (22) in the lateral surface inside the control knob engaging corresponding teeth (26) in the surface of the ring. The ring clicks (34,36) into position on the support to retain it longitudinally. |
