Impact tool

Details Impact tool Impact tool

2009-06-29

2010-11-09

Rada, Rinaldi I. (Department: 3721)

Tool driving or impacting

Drive adjustable to completely change kind of drive

Adjustable to impacting device

C173S047000, C173S114000, C173S117000, C173S204000, C173S120000, C173S122000, C227S131000, C310S080000, C310S103000, C074S025000

Reexamination Certificate

active

07828072

ABSTRACT:
An impact tool for simultaneously providing a rotational force and an impact force to an object has an output shaft rotated by a motor, hammer for intermittently providing an impact force to the output shaft, hammer holder for movably holding the hammer, and an impact force generator for generating the impact force from an output of the motor. An air chamber is formed between the hammer and the hammer holder such that a volume of the air chamber is variable in response to a position of the hammer relative to the hammer holder. In addition, the hammer receives a bias force generated in a direction toward the output shaft by a biasing device. This bias force effectively increases the impact force in cooperation with an air pressure caused by a volume change of the air chamber.

REFERENCES:
patent: 1841781 (1932-01-01), Bisschop et al.
patent: 2067886 (1937-01-01), Byford
patent: 2943216 (1960-06-01), Spodig
patent: 3150725 (1964-09-01), Hornschuch et al.
patent: 3161241 (1964-12-01), Allen et al.
patent: 4011477 (1977-03-01), Scholin
patent: 4237987 (1980-12-01), Sherman
patent: 4431062 (1984-02-01), Wanner et al.
patent: 4567951 (1986-02-01), Fehrle et al.
patent: 4776406 (1988-10-01), Wanner
patent: 5024127 (1991-06-01), Mueller et al.
patent: 5497555 (1996-03-01), Averbukh
patent: 5666715 (1997-09-01), Zoiss et al.
patent: 6520269 (2003-02-01), Geiger et al.
patent: 6695070 (2004-02-01), Gokturk et al.
patent: 6729412 (2004-05-01), Shinohara
patent: 6868918 (2005-03-01), Shinohara
patent: 6918449 (2005-07-01), Shinagawa et al.
patent: 7025183 (2006-04-01), Steffen et al.
patent: 2002/0122707 (2002-09-01), Sakai et al.
patent: 2004/0074653 (2004-04-01), Hashimoto et al.
patent: 1 584 422 (2005-10-01), None
patent: 942951 (1963-11-01), None
patent: 61-95807 (1986-05-01), None
patent: 8-276380 (1996-10-01), None
patent: 2595262 (1997-01-01), None
patent: 2002-254358 (2002-09-01), None
patent: 2004-82557 (2004-03-01), None

Affiliated with

Also associated with

Rating

Impact tool does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Impact tool, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Impact tool will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4156631