Title:
ELECTRIC APPARATUS
Document Type and Number:
WIPO Patent Application WO/2016/067504
Kind Code:
A1
Abstract:
A bolt hole (24) penetrating in a direction of lamination of electrical steel sheets is opened in a core (10). The core (10) is fixed to a case (12) by means of a clamping bolt (14) inserted into the bolt hole. A flanged bush (32) is inserted into the bolt hole from an end face of the core into which the clamping bolt (14) is to be inserted. A tubular portion (34) of the flanged bush is inserted into the bolt hole so as to engage two or more electrical steel sheets. A portion of the bolt hole engaging with the tubular portion has a structure that blocks relative rotation. Rotational force generated by fastening the clamping bolt is dispersed into a plurality of electrical steel sheets and, as a result, force exerted on one electrical steel sheet becomes smaller, which in turn prevents deformation.
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Inventors:
MATSUMOTO TAKASHI (JP)
Application Number:
PCT/JP2015/004407
Publication Date:
May 06, 2016
Filing Date:
August 31, 2015
Export Citation:
Assignee:
TOYOTA MOTOR CO LTD (JP)
International Classes:
H02K1/18; H02K5/24
Foreign References:
| US6225722B1 | 2001-05-01 | |||
| JP2002084711A | 2002-03-22 | |||
| US5027026A | 1991-06-25 | |||
| US2870356A | 1959-01-20 |
Attorney, Agent or Firm:
YKI PATENT ATTORNEYS (Kichijoji-Honcho Musashino-sh, Tokyo 04, JP)
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