Hammer drill

Details Hammer drill Hammer drill

2006-01-24

2006-01-24

Smith, Scott A. (Department: 3721)

Tool driving or impacting

Drive adjustable to completely change kind of drive

Adjustable to impacting device

C173S109000, C173S201000

Reexamination Certificate

active

06988563

ABSTRACT:
A hammer drill is equipped with a connector shaft, which is rotationally driven by a motor, a spindle that transmits the rotation through a connector shaft, and a percussive impact impact mechanism that applies a percussive force in the axial direction to a drill bit held by the spindle through performing a reciprocating motion, in the axial direction, relative to a spindle that receives the rotation of the connector shaft through a motion converter mechanism. The hammer drill is provided with a percussive force converter from the percussive impact impact mechanism by changing the speed reduction ratio between the motor and the connector shaft. This makes it possible to adjust the percussive force according to the drill bit used.

REFERENCES:
patent: 3834468 (1974-09-01), Hettich et al.
patent: 3874460 (1975-04-01), Schmid et al.
patent: 4236588 (1980-12-01), Moldan et al.
patent: 4280359 (1981-07-01), Schmid et al.
patent: 4506743 (1985-03-01), Grossmann
patent: 4537264 (1985-08-01), Schmid et al.
patent: 5125461 (1992-06-01), Hoser
patent: 6035945 (2000-03-01), Ichijyou et al.
patent: 6192996 (2001-02-01), Sakaguchi et al.
patent: 2001/0052417 (2001-12-01), Neumaier
patent: 1 101 570 (2001-05-01), None
patent: 2595262 (1997-04-01), None
European Search Report dated Jan. 13, 2004, 4 pages.
English Translation of Japanese Patent No. 2595262 issued Apr. 2, 1997, 6 pages.

Affiliated with

Also associated with

Rating

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

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3547892