| 摘要 |
A lever-operable fastener for pulling two parts of a skiing boot toward each other comprises a rack (1) , which is secured to one of said parts and adapted to receive a tensioning lever (2). A tensile element (3) is connected to the other of said parts and acts on said tensioning lever at a point which is spaced from a detent element (4), which is provided on the tensioning lever (2) and is adapted to extend into a tooth space of said rack (1) so as to define a fulcrum for said lever. In order to permit a retensioning of said fastener without a previous reduction of the closing tension which has been applied before, the tensioning lever (2) comprises two detent elements (4, 5), each of which is adapted to define a fulcrum for said lever and which during an upswing and downswing of said lever successively enter said rack (1) whereas the detent element (4 or 5) which is clear of said rack at a time is advanced into the next following tooth space of said rack (1) in the tensioning direction during such upswing and downswing of said lever (FIG. 1). |
