| 摘要 |
The mount (40) comprises a tightening nut (42) and knob (44), a shaft (86), a clamp and a spring. The nut has a through bore, a clamping bar (50) adjacent to one end (46), and its other end (48) ramped (58). An axial step (64) terminates the ramp. The knob adjoins the nut's ramped end, and has a through bore (70) coaxial with that of the nut. One end of the knob is ramped (72) and faces the nut ramp. An axial step (78) terminates this ramp as well, so that it conforms to the shape of the nut ramp and step. The knob bore has an internal shoulder at its other end (68). The shaft extends through the nut and into the knob. It has a threaded portion within the nut. The clamp is retained to one end of the shaft, facing but spaced from the clamping bar. The spring overlies the shaft, and engages the knob's internal shoulder at one end and the threaded end of the shaft at the other. |
