| 摘要 |
<p>The tool has a support structure (1) including thickness and a retainer (A) for axles, which displace the support structure in motion. The thickness of the support structure is partially reduced in a region to be formed in a square-type recess (2) that extends from an inner region (3) in direction of an outer edge (3') of the support structure. The recess is provided in a base surface and includes long sides (2') that are connected with short sides (2''), where the short sides are circularly shaped in a section.</p> |
