| 摘要 |
PROBLEM TO BE SOLVED: To provide an attachment of a ball screw which can achieve a low noise and a stable fixing effect, and is equipped with a locking back-flow end plug. SOLUTION: This ball screw is equipped with the locking back-flow end plug, and includes a nut, a screw and a back-flow end plug. Locking grooves and locking blocks are formed on facing faces of the nut and the back-flow end plug, respectively, and an elastic connector for connecting the locking grooves or the locking blocks is previously formed at the back-flow end plug. By this, since a limit for fixing the back-flow end plug on the nut by using a conventional fastening element can be released, the cost of the fastening is reduced accompanied by a reduction in the number of the elements, the elastic connector of the back-flow end plug is improved in its assembling usability, and furthermore, since a back-flow passage of the back-flow end plug employs the design of a coated type, a collision of a ball and the nut is avoided, and thus the generation of noise can be suppressed. COPYRIGHT: (C)2008,JPO&INPIT
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