Power tool safety clutch

A devise for sensing sudden abnormal movement of a power operated tool, such as a hand held circular saw or drill. The device, comprising a wrap spring clutch and an inertia sensing means, further rapidly declutches the tool drive in response to the abnormal movement. The declutching reduces the sev...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	SMILGYS, DAVID B, SMILGYS, BRUNO S
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING BRAKES CLUTCHES COMPONENTS OR ACCESSORIES THEREFOR COUPLINGS FOR TRANSMITTING ROTATION ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MECHANICAL ENGINEERING NAILING OR STAPLING MACHINES IN GENERAL PERFORMING OPERATIONS SAWS FOR WOOD OR SIMILAR MATERIAL THERMAL INSULATION IN GENERAL TRANSPORTING WEAPONS WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL
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Beschreibung
Zusammenfassung:	A devise for sensing sudden abnormal movement of a power operated tool, such as a hand held circular saw or drill. The device, comprising a wrap spring clutch and an inertia sensing means, further rapidly declutches the tool drive in response to the abnormal movement. The declutching reduces the severity of movement where it is power induced and renders the output drive inoperative to improve operator safety. The tool must be positively reset to accomplish further operation.