Reciprocatory saw

US7861418B2 · kind B2 · utility

Assignee

• FESTOOL GMBH · DE

Inventors

• Volker Kretschmar · Engen, DE
• Torsten Reuβ · Dettingen unter Teck, DE

Key dates

• Filing date: Feb 8, 2008
• Grant date: Jan 4, 2011
• Expiry date: Jan 13, 2029

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T279/17717
• WIPO field: Machine tools
• WIPO sector: Mechanical engineering

Abstract

A reciprocatory saw, in particular, a jigsaw, is made up of a pitman with a chuck arranged for the releasable clamping of a saw blade. The chuck contains a movably mounted chuck jaw arrangement able to be clamped laterally against the saw blade shank, a wedge element arrangement adjacent to and for cooperation with the chuck means, a first spring acting downwardly on the inserted saw blade and a second spring acting on the wedge element arrangement downwardly. The wedge element arrangement is connected with the chuck jaw arrangement in a manner for the transmission of rotary movement and from the outside and is able to be shifted between a bottom clamping position clamping the chuck jaw arrangement against the saw blade shank and a top release position freeing the chuck jaw arrangement. The wedge element arrangement assumes an angular position turned in relation to the clamping position and is seated on a stationary holding face.