The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 24, 2006
Filed:
Aug. 26, 2003
Kouichi Hashimoto, Hikone, JP;
Masahide Shiratani, Hikone, JP;
Mineaki Yokoyama, Hikone, JP;
Yoshikazu Okada, Yasu-gun, JP;
Kouichi Hashimoto, Hikone, JP;
Masahide Shiratani, Hikone, JP;
Mineaki Yokoyama, Hikone, JP;
Yoshikazu Okada, Yasu-gun, JP;
Matsushita Electric Works, Ltd., Osaka, JP;
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.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile