Patent ID: 7293486

Claim:
A screw nailer apparatus comprising: a body having a functional space therein; a rotary driver positioned rotatably within said functional space, said rotary driver having a gear wheel and a plurality of fixation rims; a nail belt drivedly connected to said gear wheel; a one-way driving means having a guide rod and an oscillator, said guide rod linked to rotary driver for rotating said rotary driver in a single direction and for moving said oscillator at a preset angle synchronously; an indexing fixing having an elastic wedge that is lockable into at least one of said plurality of fixation rims when said rotary driver is rotating in a direction with the preset angle; a blockage fixer means drivably connected by an oscillating movement of said oscillator, said blockage fixing means for preventing said rotary driver from angularly turning such that the screw can be nailed by rotational inertia when said rotary driver is rotating.