SHEET-GRIPPING DEVICE

摘要

A sheet-gripping device includes a gripper assembly nonrotatably mounted on a gripper shaft. A link member rotatably supports the gripper shaft adjacent one end and is nonrotatably secured to an intermediate shaft adjacent the other end. A first cam follower lever is connected to the intermediate shaft and is arranged to oscillate the end of the link member supporting the gripper shaft. A second cam follower lever is nonrotatably connected to the gripper shaft and has a cam roller urged into abutting relation with a cam surface fixed on the cylinder. Movement of the link member by the first cam follower moves the gripper along a path similar to the cam surface against which the cam roller on the second cam follower is urged. The configuration of the cam members determines the path followed by the gripper assembly. The gripper assembly includes a lever with one end secured to the gripper shaft and a recessed portion in the other end. A gripper member has a gripper finger at one end and an oppositely extending connecting portion at the other end. A connecting member connects the connecting portion to the lever and a resilient member urges the gripper finger toward the lever member.