Title:
FASTENER DRIVING TOOL WITH USER-ADJUSTABLE TORQUE LIMITING CONTROL
Document Type and Number:
WIPO Patent Application WO2006009681
Kind Code:
A8
Abstract:
An improved hand-held fastener driving tool (10) is provided with an adjustable torque limiting control. The tool is portable, and is electrically powered using either a battery pack (48) or a power cord as a power source. The tool drives collated fasteners (60) (e.g., screws) (64) into solid objects. The motor current is measured to determine the amount of torque being applied to a screw (64) by the motor (146) and mechanical drive components. As the screw (64) bottoms out, the motor torque increases to a point where it exceeds the user-adjusted torque limiting control. The motor (146) is automatically turned off at that point, thereby preventing the screw (64) form being stripped.
Inventors:
WOTTRENG MATHIAS JR (US)
BOHART GARY MICHAEL (US)
BOHART GARY MICHAEL (US)
Application Number:
PCT/US2005/020889
Publication Date:
May 11, 2006
Filing Date:
June 13, 2005
Export Citation:
Assignee:
DURASPIN PRODUCTS LLC (US)
WOTTRENG MATHIAS JR (US)
BOHART GARY MICHAEL (US)
WOTTRENG MATHIAS JR (US)
BOHART GARY MICHAEL (US)
International Classes:
B25B23/04; B25B23/147; B25B23/151; (IPC1-7): B25B23/147; B25B23/04
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