Patent ID: 7121174

Claim:
A screw-feeding device for a screw-driving tool comprising: a housing; a belt carrier rotatably disposed in the housing and provided on outer periphery thereof with a plurality of teeth for carrying strip screws; a motion-transmitting member disposed in the housing for driving the belt carrier to rotate unidrectionally; a guide rod assembly having a first free end and a second free end, the first free end engaged with the motion-transmitting member, while the second free end being controlled to move reciprocally so as to rotate the motion-transmitting member; a positioning assembly pivotally disposed in the housing and including a first positioning part and a second positioning part, wherein the first positioning part is moved by the second free end of the guide rod assembly so as to enable the second positioning part to be engaged with the teeth of the belt carrier; a positioning pin is formed in the housing and used to abut against the second positioning part of the positioning assembly so as to prevent the positioning assembly from being overly rotated.