| 摘要 |
PURPOSE:To enable one-touch mounting by installing a moving frame along a rack fixed on a frame and installing a pinion engaged with the rack releasably supported on the moving frame. CONSTITUTION:A pinion 60 and a driven roller 77 embrace a rock 17 and an X-axis motor 15 is driven to rotate the pinion 69 and a sliding guide member 13 is guided by the rack 17 to displace in the direction of the X-axis. Further, when an air cylinder is employed, by pressure of a plunger against a projection of a swinging body 79 in the RH direction, the swinging body 79 tends to rotate clockwise with a pivot 75 as the fulcrum and consequently, the driven roller 79 is pressed against the rack with a constant force and it is brought to revolutions reversedly to the pinion 69. In this case, by a releasing spring, manual operation becomes available to be switched without driving the X-axis motor 15, and an one-touch manual operation becomes available.
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