| 摘要 |
The branches 2, 3 of the fork 1 limit an internal space 10 which can totally contain a clamp 12 so that a central motor unit 13 can be mounted on a transverse pivoting axis 4, between the branches 2, 3, which unit 13 has two opposed drive shafts 14A, 14B, on the extension of which are mounted two clamps 11, 12 which can be used alternately after a single pivoting through 180 DEG . <IMAGE>
|
