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:
Dec. 16, 2014
Filed:
Aug. 19, 2010
Applicants:
Manabu Tokunaga, Anjo, JP;
Akihiro Ito, Anjo, JP;
Shinji Hirabayashi, Anjo, JP;
Inventors:
Assignee:
Makita Corporation, Anjo-Shi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16H 15/50 (2006.01); F16H 57/04 (2010.01); B27B 17/08 (2006.01); B23D 47/12 (2006.01); B24B 23/02 (2006.01); B24B 47/12 (2006.01); B25B 21/00 (2006.01); B25F 5/00 (2006.01); F16H 15/52 (2006.01);
U.S. Cl.
CPC ...
B27B 17/08 (2013.01); B23D 47/12 (2013.01); B24B 23/028 (2013.01); B24B 47/12 (2013.01); B25B 21/00 (2013.01); B25F 5/001 (2013.01); F16H 15/52 (2013.01);
Abstract
In a disc grinder, a spindle mounted with a grindstone intersects an output shaft of an electric motor. The disc grinder includes the three-point pressing continuously-variable transmission between the output shaft of the electric motor and a bevel gear train. The bevel gear train is used for deceleration. The traction grease having a high traction coefficient is used as the lubricant of the traction drive. A grease reservoir or felt members arranged in sliding contact with the pressing parts are disposed in the transmission case.