| 摘要 |
<p>The gutter/strip unit (1) has a spacer (4) at a side surface (2) running perpendicular to a gutter/strip axis and another spacer (5) at an opposite side surface (3). The former spacer is arranged and displaced inwards at a small amount at the former side surface, and the latter spacer is arranged and displaced inwards at a small amount at the latter side surface opposite to the former spacer. The spacers works together by two units, and are dimensional in such a manner that the spacers ensure a closing of a gap/rabbet both with straight shifting and with curved shifting till a limited angle.</p> |
