Patent ID: 6089437
Filing Date: 2000-07-18
Classification: B21J,B23P,B25B,B25C,F16B

Abstract:
A feeder head for use with a fastening machine for feeding and driving fasteners into sheets to be fastened, said feeder head comprising:a tape guide path defined through the feeder head for receipt of a carrier tape that carries the fasteners;a punch configured to drive the fasteners into the sheets to be fastened;a sprocket wheel drive configured to move the carrier tape through the tape guide path when the sprocket wheel drive is actuated and to hold the carrier tape against movement otherwise;a retractable spring-loaded stem stop roller positioned in the tape guide path and having a surface engageable by a stem of the fasteners, the surface being configured to properly position one of the fasteners in alignment with the punch; anda spring-loaded finger mounted in the feeder head, the spring-loaded finger having a sensing element that is triggered when the one of the fasteners is aligned with the punch, the sensing element being operatively connected to the sprocket wheel drive so as to deactivate the sprocket wheel drive when the sensing element is triggered.