| 摘要 |
PURPOSE:To remove backlash by fitting either a female screw plate having a tooth gearing with a male screw or a male screw to an article to be carried. CONSTITUTION:A female screw plate 4 having a tooth gearing with the screw thread 2 of a male screw 1 is fitted to an article 5 to be carried with a bolt 6. The single tooth 3 and the female screw plate 4 with a plurality of said tooth 3 are so placed as to be faced to each other. The female screw plate 4 is fitted to said article 5 in such a way that the tooth 3 on a set of the female screw plates 4 will get in contact with the screw thread 2 from a direction opposite to each other. Consequently, backlash is deleted and high precision feed can be obtained.
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