Abstract: A pneumatic tool for joining steel decking includes a pneumatic actuator assembly which drives a push rod. The push rod is coupled to a linkage assembly including a rocker link having one end coupled to the frame of the tool, a punch arm having one end coupled to the frame, and a coupler link rotatably coupled to both the rocker link and the punch arm. At the bottom of the tool, a punching mechanism is formed. A trigger mechanism releases a flow of pressurized air into the actuator assembly, thereby driving the push rod out of the housing of the actuator assembly. Movement of the push rod causes the rocker link to rotate about a joint link, thereby driving the coupler link toward the punch arm and causing the punch to rotate about the joint link and mate with the fixed die.

Abstract: A pneumatic tool for joining steel decking includes a pneumatic actuator assembly which drives a push rod. The push rod is coupled to a linkage assembly including a rocker link having one end coupled to the frame of the tool, a punch arm having one end coupled to the frame, and a coupler link rotatably coupled to both the rocker link and the punch arm. At the bottom of the tool, a punching mechanism is formed. A trigger mechanism releases a flow of pressurized air into the actuator assembly, thereby driving the push rod out of the housing of the actuator assembly. Movement of the push rod causes the rocker link to rotate about a joint link, thereby driving the coupler link toward the punch arm and causing the punch to rotate about the joint link and mate with the fixed die.

Abstract: A pneumatic tool for joining steel decking includes a pneumatic actuator assembly which drives a push rod. The push rod is coupled to a linkage assembly comprising a rocker link having one end rotatably coupled to the frame of the pneumatic tool, a punch arm having one end rotatably coupled to the frame, and a coupler link rotatably coupled to both the rocker link and the punch arm. At the bottom of the pneumatic tool, a punching mechanism is formed by a stationary die affixed to the frame and a movable jaw with a punch provided at the end of the punch arm. An operator may use a trigger mechanism to release a flow of pressurized air into the actuator assembly, thereby driving the push rod out of the housing of the actuator assembly. The end of the push rod is coupled to both the rocker link and the coupler link, so linear movement of the push rod out of the housing causes the rocker link to rotate about a joint link with the frame of the pneumatic tool, thereby driving the coupler link toward the punch arm.