Patent ID: 6109146
Filing Date: 2000-08-29
Classification: B25B

Abstract:
A successive screw feeder driver in which a bit for driving a screw is rotatably inserted into a screw feeder mechanism body freely slid in a forward or rearward direction, said bit is removably arranged at the front section of a rotary main shaft, a drive unit is connected to said rotary main shaft;said screw feeder mechanism body is provided with a screw feeder mechanism comprised of a feeder claw for feeding each of the screws in a screw chain in sequence to a driving action applying position with said bit in cooperation with a sliding motion of said screw feeder mechanism body in a forward or rearward direction;a screw chain guide having a guide passage at one end thereof and provided with a shaft hole at the other end thereof is rotatably pivoted to the side surface of said screw feeder mechanism body, said pivoted section is provided with a resilient member for biasing the guide passage for said screw chain guide against the upper surface of said screw feeder mechanism body in a downward direction;a pushing section abutted against the lower part near the shaft hole of said screw chain guide is projected and arranged at said drive unit body, the guide passage side of the screw chain guide is pushed up by said pushing section in an upward direction and then the screw chain inserted into the guide passage can be lifted up in an upward direction in cooperation with a driving action of said bit.