| 摘要 |
A linear actuator comprising a stepping motor having a hollow motor shaft prevented from moving in a thrust direction and a flange on either shaft end, a screw extending through the hollow shaft, a nut connected to the motor shaft with a coupling and rotated to linearly move the screw. A plate member is mounted upon screw and a bar so as to connect them to each other, said screw and said bar passing through and being supported by a motor flange, said bar moving through a bearing of a holder mounted to the plate member such that the holder is in parallel to the screw.
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