| 摘要 |
<p>PURPOSE:To permit a tape guide to stably sandwich a rail without using a spring by setting the shapes of engagement parts in the tape guide which is engaged with the rail to arcs and engaging plural arc engagement parts with the rail with a slight clearance. CONSTITUTION:A guide base (tape guide) 27 sandwich a guide member (rail) 68 by an upper sandwiching part 27b fixed to the guide base 27 by a screw 83 and a lower sandwiching part 27a, and four arc projections 27c-27f which are engaged with the guide member 68a are formed at the lower sandwiching part 27a. The shapes are the same in the upper sandwiching part 27b, and total four parts in the guide member 68 are vertically sandwiched, whereby the guide member 68 and the arc projections 27c-27f are engaged or brought into a linear contact with mostly constant clearance. Thus, the rail and the sandwiching part except for the engagement surface of the tape guide is not brought into contact, and the tape guide can stably be held and guided.</p> |
