Screwdriver for self-drilling screw
OwnerTozo Yamamotoinventor
Life of this patent
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Abstract
A hand-held power screwdriver with a clamping device is disclosed. The screwdriver includes a body, a screwing arm, a clamping arm, and a clamping device. The body is similar to an ordinary hand drill. A torque shaft, a part of the screwing arm, is connected to the body at one end, and it has a socket for a self-drilling screw at the other end. The clamping arm is movably connected to the body, and it has a clamping head at one end. The clamping device will clamp two or more members between the screw and the clamping head during the screw driving process.
Claims17
A method for joining two or more members together with a hand-held screwdriver powered by a motor, said method comprising the steps of:
- (a) positioning said members together so that flat portions of said members are placed together,
- (b) clamping said members between a self-drilling screw mounted in said hand-held screwdriver and a clamping head attached to the screwdriver, and
- (c) drilling through said thin and flat portions of said members with said screw while applying a clamping force to said thin and flat portions of said members with said screw and said clamping head and advancing said screw with said clamping force until a screw head of said screw is tightly seated on a face of said flat portion.
Dependencies are inferred from the claim text.