| 摘要 |
<p>PURPOSE:To reduce the number of parts and to make a device smaller in size and lighter in weight. CONSTITUTION:An adjusting shaft 11 where a screw part 11a is formed is rotatably supported by a base 1 nearly in parallel with a guiding shaft 2, and the outer periphery of a flange 2b is allowed to abut on the screw part 11a. A screw part is formed on the outer periphery of the flange 2b, and a projection part interfering with the screw part is formed on the base 1.</p> |
