| 摘要 |
The invention relates to a device for gripping one or more elongated element(s), which device comprises two main gripping arms (1, 2) adapted to hold said element(s) between them and at least one first hydraulic cylinder (6, 7) for moving the main gripping arms relative to one another. The device also comprises at least one auxiliary gripping arm (3, 4) and at least one second hydraulic cylinder (8, 9) for moving the auxiliary gripping arm relative to the main gripping arms in order to press said element(s) against the main gripping arms. The second hydraulic cylinder (8, 9) is connected operationally to the first hydraulic cylinder (6, 7) in such a way that the movement of the auxiliary gripping arm (3, 4) is initiated only when the piston of the first hydraulic cylinder reaches a predetermined position.</SD OAB>
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