| 摘要 |
PROBLEM TO BE SOLVED: To provide a rolling screw damage prevention device preventing rolling screw damage attributable to friction, flaking or the like. SOLUTION: The rolling screw damage prevention device for preventing the rolling screw damage includes: an alarm generator 10 connected electrically to a screw shaft 1 of a rolling screw; and a conductive switch member 12 connected electrically to the alarm generator 10. The conductive switch 12 is provided in a non-contact seal 7 of the rolling screw so as to be opposed to a flank of a shaft-side screw groove 3 formed on a peripheral surface of the screw shaft 1. COPYRIGHT: (C)2009,JPO&INPIT
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