| 摘要 |
<p>The device (1) has a guide groove formed in a frame body (35) at an upper side and a lower side, where the upper side faces towards cover plates (36, 37). The guide groove is extended along a rear frame leg (42b) and both front side frame legs of the frame body. The guide groove is covered by the adjacent cover plates in a region of the rear frame leg and a region of the front side frame legs. Each cover plate commonly together with a front frame leg (42a) of the frame body limits a working longitudinal slot (72). Components of a housing (15) are partially nested into each other.</p> |
