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:
Aug. 30, 2016
Filed:
Aug. 08, 2011
Applicants:
Mitsumasa Mizuno, Osaka, JP;
Toshiharu Ohashi, Shiga, JP;
Inventors:
Mitsumasa Mizuno, Osaka, JP;
Toshiharu Ohashi, Shiga, JP;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23Q 5/00 (2006.01); B25B 23/14 (2006.01);
U.S. Cl.
CPC ...
B25B 23/1405 (2013.01);
Abstract
A rotary impact tool comprises: a motor that is a rotation driving source; an impact generation device for generating a pulse impact by rotation of the motor and applying a rotational torque to an output shaft by the impact; a torque sensor for measuring the torque applied to the output shaft; and a control means for halting the motor when the torque measured by the torque sensor has reached a target torque having been set. The control means is configured to change an increased torque value for one impact according to the target torque having been set.