Patent ID: 8485407

Claim:
A fastener feeding device for a driving tool that has a tool body which defines a striking path extending along a path line in a longitudinal direction to terminate at a nose part, a contact arm movably disposed on the nose part and pressed by a targeted object to make a rearward displacement, a plurality of fasteners displaced from one another in a feeding direction and each extending along a shank axis parallel to the path line, said fastener feeding device comprising: a mounting seat adapted to be mounted to the tool body and under the striking path; an uplifting unit including a pivotable member which is configured to be pivotable about a torsion axis that is oriented in the longitudinal direction, and which is disposed to be movable relative to said mounting seat in the feeding direction between upper and lower positions, a torsion spring disposed to couple with said pivotable member to exert an angularly biasing force about the torsion axis, a claw member which is radially opposite to said pivotable member, which is urged by the angularly biasing force, and which is configured to holdingly engage the second one of the fasteners during an upward movement of the fasteners from a pre-feed position that corresponds to the lower position to a fed position, where the shank axis of a leading one of the fasteners is in line with the path line, when said pivotable member is displaced to the upper position, said claw member being further configured such that, as a result of a downward movement of said pivotable member from the upper position to the lower position, said claw member is dragged downward against the angularly biasing force to engage the third one of the fasteners which had taken the place of the second fastener at the pre-feed position, and a lifting member having a lifting end which is disposed to couple said claw member to effect the upward movement of the fasteners, and an actuated end which is opposite to said lifting end in a direction transverse to both the longitudinal direction and the feeding direction; a force transmitting unit configured to couple the contact arm to said actuated end to actuate said lifting end to effect the upward movement of the fasteners in response to the rearward displacement of the contact arm; and a return biasing member disposed to bias said pivotable member toward the lower position.