MULTISTAGE SOLENOID FASTENING TOOL WITH DECREASED ENERGY CONSUMPTION AND INCREASED DRIVING FORCE

Title:

MULTISTAGE SOLENOID FASTENING TOOL WITH DECREASED ENERGY CONSUMPTION AND INCREASED DRIVING FORCE

Document Type and Number:

WIPO Patent Application WO/2010/017469

Kind Code:

A3

Abstract:

A fastening device that drives one or more fasteners into a workpiece generally includes a tool housing and a multistage solenoid contained in the tool housing. The multistage solenoid includes an armature member that travels through at least a first stage, a second stage, and a sense coil disposed therebetween. A driver blade assembly includes a blade member connected to the armature member. The driver blade assembly is operable between an extended condition and a retracted condition. A control module determines a position of the armature member relative to at least one of the first stage and the second stage based on a signal from the sense coil. The trigger assembly is connected to the control module and partially contained within the housing. The trigger assembly is operable to activate a driver sequence that moves the driver blade between the retracted condition and the extended condition. The control module adjusts a force imparted on the armature by at least one of the first stage, the second stage, and a combination thereof based on the signal from the sense coil.

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WO/2011/157775	DRIVING-IN DEVICE
JP5344245	Driving machine

Inventors:

GROSS PAUL G (US)
USSELMAN ROBERT A (US)
SEMAN ANDREW E (US)

Application Number:

PCT/US2009/053141

Publication Date:

April 22, 2010

Filing Date:

August 07, 2009

Export Citation:

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Assignee:

BLACK & DECKER INC (US)
GROSS PAUL G (US)
USSELMAN ROBERT A (US)
SEMAN ANDREW E (US)

International Classes:

B25C1/06; B25C5/15; B25D13/00; B25D17/00

Foreign References:

KR840001187Y1	1984-07-10
KR20070007328A	2007-01-15
KR890006131Y1	1989-09-12
KR19990022357A	1999-03-25

Other References: