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:
May. 14, 2013
Filed:
Sep. 07, 2009
Tomoaki Makino, Iwata, JP;
Fumihiro Isobe, Iwata, JP;
Ken Yamamoto, Iwata, JP;
NTN Corporation, Osaka, JP;
Abstract
An electric motor drive device () includes a motor (), a speed reducing part () to reduce speed of a rotation outputted from the motor () and transmit it to the side of a wheel, and a connection/disconnection part () to disconnect or connect rotation transmission of the speed reducing part, a motor side rotation member () serving as an input shaft to input the rotation from the motor (), an output shaft () to output the rotation to the side of the wheel, a double shaft () arranged coaxially with the input shaft and including a tube-shaped outer side rotation shaft () and an inner side rotation shaft () inserted into the outer side rotation shaft.