Abstract: The invention is directed to a shear device. The shear device comprises two mounting plates that form a first cutting member that is pivotally coupled to a second cutting member to facilitate moving the shear device between open and closed positions. The shear device further includes an extension arm extending from the mounting plates and pivotally connected to a rocker linkage device. An actuator is coupled to the first cutting member. The actuator has a piston slideably engaged in a cylinder, which is coupled to the rocker linkage device. The rocker linkage device is configured to pivot about the extension arm as the piston extends from the cylinder and to transfer force from the piston to a secondary linkage bar. The secondary linkage bar is configured to further transfer force to the second cutting member.

Abstract: The invention is directed to a shear device. The shear device comprises two mounting plates that form a first cutting member that is pivotally coupled to a second cutting member to facilitate moving the shear device between open and closed positions. The shear device further includes an extension arm extending from the mounting plates and pivotally connected to a rocker linkage device. An actuator is coupled to the first cutting member. The actuator has a piston slideably engaged in a cylinder, which is coupled to the rocker linkage device. The rocker linkage device is configured to pivot about the extension arm as the piston extends from the cylinder and to transfer force from the piston to a secondary linkage bar. The secondary linkage bar is configured to further transfer force to the second cutting member.