Screw strip with overlapping washers, and method and apparatus for installation

A screw strip is disclosed in which each screw carries a washer on its screw shank between the tip of the screw and a plastic strip carrying a plurality of screws. A screw driving apparatus, and method of use of the strip are also disclosed. The washers and screw heads are of relatively large diamet...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	HABERMEHL, G. LYLE, SCHERER, PAUL T
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS ORMACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS,CLIPS, WEDGES, JOINTS OR JOINTING ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HAND TOOLS HEATING LIGHTING MANIPULATORS MECHANICAL ENGINEERING PERFORMING OPERATIONS PORTABLE POWER-DRIVEN TOOLS THERMAL INSULATION IN GENERAL TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FORFASTENING, CONNECTING, DISENGAGING OR HOLDING TRANSPORTING WEAPONS
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Beschreibung
Zusammenfassung:	A screw strip is disclosed in which each screw carries a washer on its screw shank between the tip of the screw and a plastic strip carrying a plurality of screws. A screw driving apparatus, and method of use of the strip are also disclosed. The washers and screw heads are of relatively large diameter and adjacent washers overlap each other. The power tools used to install the screws include indexing means which advance successive screws into driving position, and retract the remaining screw strip rearwardly in order to avoid interference between the driving tool, the driven screw and adjacent washers. This configuration permits application of large head screws such as hexagonal head screws carrying large washers by power tool socket drivers and is particularly useful in sheet metal applications. The invention is applicable to any fastener with a threaded shank including bolts and screws.