US Patent 7597369 Clamp tool for circuit board

A clamp tool for circuit board is disclosed. The clamp tool includes a frame, a handle, a plurality of gripping shafts, and a lock. The frame defines two vertical grooves facing each other. The handle is mounted on top of the frame. The gripping shafts are mounted beneath the frame, and include protuberant gripping heads on an end thereof. The lock includes a pull rod and a locking shaft. The pull rod passes through the vertical grooves and connects with the frame by elastic pieces. The locking shaft is mounted beneath the pull rod. The clamp tool is used to move circuit boards.