| 摘要 |
The rear sole-holder is held on a support (7) joined to the front sole-holder and consists of two component groups (8,9). The one group consists of a strong connecting band joined to the front sole-holder (3). The second group has two telescopically interlocking parts (10,11) movable against spring force. The front part is joined to the connecting band, and the rear part is joined to the back sole-holder (14). |
