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. 12, 2016
Filed:
Feb. 21, 2012
Tomonari Shiraishi, Shizuoka, JP;
Toshihiko Nagata, Shizuoka, JP;
Toshihide Ootani, Shizuoka, JP;
Hideyuki Kobayashi, Shizuoka, JP;
Tomonari Shiraishi, Shizuoka, JP;
Toshihiko Nagata, Shizuoka, JP;
Toshihide Ootani, Shizuoka, JP;
Hideyuki Kobayashi, Shizuoka, JP;
YAMAHA MOTOR ELECTRONICS CO., LTD., Shizuoka, JP;
Abstract
A driving unit includes a stator, a housing including a tubular section to accommodate the stator, a cover coupled to the housing to block an upper opening of the tubular section, and a bent wire rod defined by a wire to press the stator against the tubular section, the bent wire rod being arranged between a top surface of the stator and a rear surface of the cover while being compressingly deformed along an axis of the stator. The bent wire rod has substantially annular shape with an opened portion when seen along the axis, and includes projections projecting upward along the axis and depressions projecting downward along the axis being arranged alternately and successively. An elastic force from the bent wire rod causes the stator to receive a downward force along the axis. The stator is pressed against the tubular section to hold the stator in the housing.