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:
Nov. 18, 2014
Filed:
Feb. 27, 2012
Applicants:
Tadasuke Matsuno, Anjo, JP;
Kenji Kobayashi, Anjo, JP;
Inventors:
Tadasuke Matsuno, Anjo, JP;
Kenji Kobayashi, Anjo, JP;
Assignee:
Makita Corporation, Anjo-shi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16H 15/52 (2006.01); F16H 57/04 (2010.01); F16H 57/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
Embodiments of the present invention may include a power tool including a drive motor and a continuously variable transmission mechanism. The continuously variable transmission mechanism may include a sun roller rotated by a drive motor, the sun roller configured to press on a plurality of planetary rollers, a holder radially supporting the plurality of planetary rollers, a shift ring being in internal contact with the plurality of planetary rollers, and a resistance reducing portion disposed at the holder to fill a gap between the two of the planetary rollers.