| 摘要 |
PCT No. PCT/NO88/00045 Sec. 371 Date Jan. 27, 1989 Sec. 102(e) Date Jan. 27, 1989 PCT Filed May 26, 1988 PCT Pub. No. WO88/09444 PCT Pub. Date Dec. 1, 1988.A fastening device in the shape of an outer clamping sleeve member with an internal thread, and an inner clamping sleeve member with an external thread, said clamping sleeve members being mutually rotatable. One or both of the clamping sleeve members may be provided with an axial through slot or may have mutually parallel, axially extending and partly overlapping slots. The threads of the clamping sleeve members may be a cylindrical or a conical shape. A central sleeve may be provided between the outer and inner clamping sleeve members for cooperation with same. Wrench mounts are provided on the device, such as teeth and slots, and a complementary securing tool may be inserted to engage the teeth and slots for mutual turning of the clamping sleeve members. The device can be used, e.g., to mount a shaft to a wheel-hub, to connect pipe ends, or as a non-threaded nut.
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