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Patent Searching and Data


Title:
FLYWHEEL OPERATED TOOL
Document Type and Number:
WIPO Patent Application WO2002051594
Kind Code:
A8
Abstract:
Disclosed and taught is a novel drive mechanism for a cyclic operating tool employing an energized flywheel (45) to provide the necessary energy to perform a working cycle. The drive mechanism disclosed is particularly useful in hand tool applications such as a hand held nailing machine. The flywheel may be energized by a corded or battery powered motor (42). The herein disclosed mechanism teaches a novel pair of ball ramp cam plates (52, 54, 56, 58) wherein a first pair of ball ramps (56, 58) cause an initial engagement of a clutch with the energized flywheel whereupon rotation of the clutch (35) causes activation of a second pair of ball ramps (56, 58) which affect compression of a spring which acts to increase the pressure applied to the clutch thereby assuring a slip free engagement between the clutch and the flywheel throughout the working cycle of the drive mechanism. Upon completion of the drive mechanisms working cycle, the second pair of ball ramp cam plates further act to disengage the clutch from the flywheel may dissipate the unused kinetic energy remaining within energy remaining within the flywheel as the drive mechanism returns to the start position.

Inventors:
GARVIS CONRAD
BURKE JOHN
LEIMBACH RICHARD
ADAMS SHANE
Application Number:
US0149885W
Publication Date:
January 09, 2003
Filing Date:
December 21, 2001
Export Citation:
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Assignee:
SENCO PRODUCTS (US)
International Classes:
B25F5/00; B25C1/06; (IPC1-7): B25C1/06
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