| 摘要 |
PROBLEM TO BE SOLVED: To provide a ball screw for an actuator, fitting a screw shaft in a simple fitting structure in a compact space even when the position of a rotating shaft of a driven member is fixed. SOLUTION: A nut 2 engaged with a screw shaft 1 of the ball screw to make linear motion is provided with a pair of connecting parts 3 having a U-shaped groove 3a opened to the outside diameter side and opposite to the screw shaft 1 at right angles. A connecting pin 4 to which a link 5 as a driven member is connected is stretched over the U-shaped groove 3a, and both end parts provided with parallel slide surface 4a formed by double corner rounding are slidably fitted in each U-shaped groove 3a, whereby even if the rotating shaft of the driven member is fixed, the ball screw for an actuator can be fitted in a simple fitting structure in a compact space without rocking the screw shaft 1. COPYRIGHT: (C)2005,JPO&NCIPI
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