Fastener insertion apparatus

Details Fastener insertion apparatus Fastener insertion apparatus

2006-01-17

2006-01-17

Smith, Scott A. (Department: 3721)

Elongated-member-driving apparatus

With means to move or guide member into driving position

Driver actuates member-feed means

C227S119000, C227S139000, C227S114000

Reexamination Certificate

active

06986450

ABSTRACT:
Fastener insertion apparatus comprises a nose having a fastener delivery passage and side entry port. Fasteners such as rivets are supplied to the nose via a fastener supply passage and a fastener feeder assembly. A punch reciprocally disposed for movement in the delivery passage drives a fastener disposed in the delivery passage out of the passage and into a workpiece. The feeder assembly comprises a gate that is movable between retracted and advanced positions. In the retracted position it is clear of the supply passage and the delivery passage so as to permit movement of a fastener from the supply passage to the delivery passage. In the advanced position it at least partially closes the supply passage so as to prevent movement of a fastener and it projects into the delivery passage through the entry port so as to retain a fastener, if present, in the delivery passage. Sensors are provided to detect the position of the gate. The invention permits different size rivets to be supplied to the same tool and reduces the rivet cycle time. The apparatus can also be used in a clinching operation with or without a fastener.

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