| 摘要 |
<p>An electrical connector has a coupling nut provided with ratchet teeth on one end thereof for cooperating with a spring, so that the coupling nut is harder to rotate in one direction than the other. The spring is formed as a leaf spring having an elongate arm which cooperates with the forward and rearward faces of the ratchet teeth extending from the coupling nut. The relation between the leaf spring and the ratchet teeth is such that any compressive force acting on the spring during turning of the coupling nut is relatively light, and so the spring does not buckle as the coupling nut is turned. In one embodiment, the spring is in tension during rotation of the coupling nut in its uncoupling direction, and in compression only during rotation of the coupling nut in its easy direction, when the force is light. In another embodiment, compressive forces during rotation in the uncoupling direction are minimized by a rounded surface on the spring.</p> |
