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:
Dec. 25, 2018
Filed:
Jun. 11, 2013
Daikin Industries, Ltd., Osaka-shi, Osaka, JP;
Daikin Industries, Ltd., Osaka, JP;
Abstract
A rotor core formed with a shaft hole at the center thereof is provided. A cylindrical member fitted into the shaft hole of the rotor core along an outer peripheral surface of the cylindrical member is provided. A drive shaft inserted into a hollowed part of the cylindrical member (collar) is provided. The collar is made of the material having a lower Young's modulus than those of the rotor core and the drive shaft, and is formed such that an inner peripheral surface of the collar is a tapered surface. The drive shaft has, at an outer periphery thereof, a tapered surface such that the tapered surface is in surface contact with the tapered surface of the collar in fitting of the drive shaft into the collar.