Gripping tool for a crane
A gripping tool includes a bracket for connecting the gripping tool to a crane. The gripping tool further includes a main body connected to the bracket and a plurality of jaw members pivotally arranged on the main body. The plurality of jaw members are controlled by a plurality of actuators and are arranged to cooperatively grip and hold goods to be lifted or manipulated. A supplementary jaw member is displaceably connected to a first jaw member of the plurality of jaw members. The supplementary jaw member is displaced from a position where a gripping surface of the supplementary jaw member rests against a gripping surface of an outer surface of the first jaw member to a position where the gripping surface of the supplementary jaw member is separated by a distance from the gripping surface of the first jaw member.
1. A gripping tool comprising:
a bracket for connecting the gripping tool to a crane;
a main body connected to the bracket;
a plurality of jaw members pivotally arranged on the main body;
wherein the plurality of jaw members are controlled by a plurality of actuators and are arranged to cooperatively grip and hold goods to be lifted or manipulated;
a supplementary jaw member displaceably connected to a first jaw member of the plurality of jaw members;
wherein the supplementary jaw member is displaced from a position where a gripping surface of the supplementary jaw member rests against a gripping surface of an outer surface of the first jaw member to a position where the gripping surface of the supplementary jaw member is separated by a distance from the gripping surface of the first jaw member;
wherein the displacement of the gripping surface is substantially parallel; and
wherein the supplementary jaw member is connected to a parallel holding bracket at the first jaw member via at least two pairs of bars that are spaced apart from each other and are pivotally connected to the supplementary jaw member and the parallel holding bracket.
2. The gripping tool according to claim 1 , wherein the supplementary jaw member is controlled by a supplementary jaw member actuator.
3. The gripping tool according to claim 1 , wherein the plurality of actuators are hydraulic actuators.