A gear-drive shear comprises two grips, the fixed jaw, and the movable jaw and
gear wheel module. The fixed jaw and the first grip are connected together at a joint of plate
assembly module. The corresponding ends of movable jaw and the second grip are installed on the first pivot axle and second pivot axle of the plate assemble module. This
gear wheel module consists of two gears. They are installed between the corresponding ends of the movable jaw and the second grip on the plate
assembly module respectively, among which, the same sides of these two gears jointly mesh with the tooth edge of the second grip, while the other side of the second
gear wheel meshes with the tooth edge of the movable jaw. The characteristic of the invention is that one curved plate is installed additionally on one side of the movable jaw. Its first end is also installed on the first pivot axle of the plate
assembly module sharing the same rotating point with the movable jaw. Meanwhile it is installed on the first edge of the curved plate together with the first tooth edge of the movable jaw. The second edge of the curved plate is equipped with wedge, which is locked in the notch on one side of the movable jaw. The middle section of curved plate is made into a curve. Therefore, mainly with the added curved plate, the rotating of the movable jaw is more flexibly and the pattern of the movable jaw is simplified so as to achieve the
economic benefits of reducing production costs. Above are the functions and purposes of the invention.