| 摘要 |
The invention relates to a front jaw having two lateral angle levers 315a, 315b which can be pivoted outwards against the force of a release spring 306 which is accommodated in a housing 305 and through which a tie rod 307 passes. In this front jaw, in order to bring about pre-stressing of the release spring 306 in a simple manner in the event of a backward turning fall and so to reduce the work of the outward-pivoting angle lever 315a or 315b, the invention proposes that the two shorter lever arms of the angle levers 315a, 315b be subjected to the action of an angular intermediate lever 310 mounted on a first pivot pin 309 in the lower region of the housing 305, via the tie rod 307 of the release spring 306. <IMAGE> |
