| 摘要 |
The present invention concerns an apparatus ( 10 ) for gripping penetrable objects. The apparatus includes at least two needles ( 2 ) placed at an angle to each other and an actuation unit ( 3 ) connected to the needles ( 2 ) to thrust these in a lengthwise direction between an extended and a retracted position. A tool block ( 1 ) for securing the actuation units ( 3 ) includes a fixed contact surface ( 8 ) towards the object that is to be lifted, such that the needles ( 2 ) can be led in and out of the tool block ( 1 ) between the extended and the retracted position. Guides ( 2 a) for the needles ( 2 ) are placed in the tool block ( 1 ) such that the needles create a cross ( 9 ) when they are in an extended position. A method for gripping objects that can be penetrated is also described. |
