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:
Sep. 13, 2005
Filed:
Dec. 26, 2001
Hiroshi Shimizu, Kanagawa, JP;
Hiroshi Shimizu, Kanagawa, JP;
Japan Science and Technology Corporation, Kawaguchi, JP;
Abstract
The present invention provides an in-wheel motor for an electric vehicle allowing a drive motor to be freely mounted onto a chassis irrespective of the shape, structure, and characteristics of the drive motor as well as allowing free selection of a reduction gear ratio without need to replace a drive motor. An in-wheel motor for an electric vehicle includes a drive motor (), a reduction gear mechanism (), a wheel bearing, and a mechanical brake and serves as a drive apparatus for an electric vehicle. The drive motor () includes a casing () which houses a rotor () and a stator (); the reduction gear mechanism () is implemented by a planetary gear mechanism; a wheel bearing is fixedly attached to the outer circumference of an end portion of a housing (), which houses a wheel shaft () coupled to an output element of the planetary gear mechanism; mounting blocks () having engagement means are provided respectively at upper and lower outside portions of the casing (); and attachments are attached to the corresponding mounting blocks () and joined to corresponding joint mechanisms (), which are movably coupled to a suspension mechanism.