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:
Jun. 24, 2025
Filed:
May. 03, 2023
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Kenichiro Hayashi, Ohbu, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;
Abstract
A rotor includes a rotor core provided with a through hole, and a shaft fitted into the through hole. The shaft includes an arc-shaped outer peripheral portion extending along a center of the through hole, and a flat surface portion linearly cutting out at least part of a circle of the outer peripheral portion in a section orthogonal to an extending direction of the center. The through hole of the rotor core includes an inner peripheral portion that faces and is separated from the outer peripheral portion and the flat surface portion to provide a space portion, a first contact portion that is provided in the inner peripheral portion directed toward the center and contacts the flat surface portion, and second contact portions that are provided in the inner peripheral portion directed toward the center at positions away from the first contact portion and contact the outer peripheral portion.