Driving tool for fasteners including locking means

US5137197A · kind A · utility

Inventor

• Joachim Bauer · Hamburg, DE

Key dates

• Filing date: Nov 15, 1990
• Grant date: Aug 11, 1992
• Expiry date: Nov 15, 2010

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B25C1/008
• WIPO field: Machine tools
• WIPO sector: Mechanical engineering

Abstract

A driving tool for fasteners includes a drive unit having a drive-in pusher for driving-in the fasteners through a mouth tool. The driving tool is provided with a trigger lever mounted for pivotal movements between rest and trigger positions for actuating an actuating member of the drive unit. Furthermore, the driving tool includes a sensor responsive to the driving tool being placed upon a workpiece and mounted for movements relative to the mouthpiece between rest and operative positions. The trigger lever is biased into its rest position wherein it extends beyond the mouth tool. The sensor and the trigger lever include abutment portions cooperating to prevent pivotal movements of the trigger lever from its rest position into its trigger position when the sensor is in its rest position, and to allow for pivotal movements of the trigger lever from its rest position into its trigger position when the sensor is in its upward operative position.