| 摘要 |
<p>The mechanical shoe fastening system which ensures a precision fit between the foot and the shoe is formed by two levers (1, 8) which are hinged together and at their free ends are designed for a detachable for a snap connection with the two sides of the uppers or the eyelets, with or without an intermediate member. This positive locking system can be infinitely adjusted for example by screws so that once the required fit is obtained it can be readily repeated each time the shoe is fastened without any further adjustment work. The small lever can have a transmission ratio and a fixed point of rotation and its length can be divided to meet individual requirements.</p> |
