Patent ID: 6935031

Claim:
A gear-driven shear comprising: a first grip; a second grip; a fixed jaw, connected with the first grip with a plate assemble module at a joint; a first pivot axle and a second pivot axle being installed slanting on the plate assemble module; wherein said second pivot axle is for assembling with the second grip; a movable jaw, assembled on the first pivot axle of the plate assembly module; a gear wheel module, comprised of a first gear wheel and a second gear wheel; wherein the gear wheels are installed between corresponding ends of the movable jaw and the second grip on the plate assembly module respectively, among which, one side of the second gear wheel meshes with a tooth edge of a curved plate; the curved plate, installed on one side of the movable jaw, wherein one end of the curved plate is also installed on the first pivot axle of the plate assembly module sharing the same rotating point with the movable jaw; and wherein a first edge of the curved plate is set installed with the tooth edge and mesh with the second gear wheel mentioned above; and wherein a second edge of the curved plate is equipped with a wedge, which is locked in a notch on one side of the movable jaw; and wherein a middle section of said curved plate is made into a curve.