发明名称 |
Kugelumlaufspindel |
摘要 |
The invention relates to a ball screw device in which a screw shaft and a nut member are threadedly engaged with each other through a number of balls. In such a ball screw device, an inner surface of a cover plate contacting an end surface of a nut main body is provided with a projecting return piece adapted to be fit-engaged with a recess cut in an inner peripheral surface of the nut main body, the return piece being provided with a scoop portion for dislodging the balls from the ball rolling groove of the screw shaft and a direction switching passage for guiding the dislodged balls to the entrance of a ball return hole. The projecting return piece is divided into a first piece formed integral with the cover plate and a second piece fixed to the first piece by a curved plane including the center line of the direction switching passage. |
申请公布号 |
DE10297160(T5) |
申请公布日期 |
2004.08.05 |
申请号 |
DE2002197160T |
申请日期 |
2002.09.03 |
申请人 |
THK CO., LTD. |
发明人 |
NISHIMURA, KENTAROU;YOSHIDA, AKIMASA;NIWA, HIROSHI |
分类号 |
F16C33/37;F16H25/22;(IPC1-7):F16H25/22 |
主分类号 |
F16C33/37 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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