| 摘要 |
Safety arrangement for an apparatus for carrying out a squeezing type of operation on a mechanical workpiece which apparatus comprises, a first and a second jaw (2, 3) each having a front end portion (5, 6) and a rear end portion (7, 8) arranged pivoting in relation to each other around a pivoting point (4) between said front and rear end portions, an actuator (12) for creating a linear movement of an actuator head (19) in the direction of and into contact with said rear end portions (7, 8), in order to separate said rear end portions thereby creating the squeezing operation between said front end portions (5, 6). At least one of said rear end portions is provided with lateral blocking plates (24) and said actuator head (19) is provided with side plates (23) arranged perpendicular to said blocking plates (24) arranged to cooperate with said blocking plates in such a way that said actuator head (19) will only be able to enter between said rear end portions (7, 8) when the apparatus is in a position ready for the power stroke. |
