| 摘要 |
PCT No. PCT/DE96/02267 Sec. 371 Date Sep. 14, 1998 Sec. 102(e) Date Sep. 14, 1998 PCT Filed Nov. 26, 1996 PCT Pub. No. WO97/20154 PCT Pub. Date Jun. 5, 1997A spindle drive with a spindle and a spindle nut which moves on the spindle and is used for high precision drive of a linearly movable device is provided. The spindle nut comprises a base block connected to the movable device and having a bore extending axially to the spindle, at least one sliding nut segment being fastened to the base block and with a thread resting on the spindle. The spindle nut also comprises at least one other sliding nut segment which can be pressed in a resilient manner on the spindle using extension springs. An adjusting device is also provided which, depending on the direction of linear movement, causes a thread flank of the sliding nut segment to rest against the thread flank of the spindle sliding in the direction of linear movement, and one of the thread flanks of the other sliding nut segment is pressed on the other thread flank of the spindle which does not slide in the direction of linear movement.
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