Specifications

The Patent Office Journal 17/12/2010

4472

(12) PATENT APPLICATION PUBLICATION (21) Application No.1335/DEL/2010 A

(19) INDIA

(22) Date of filing of Application :09/06/2010 (43) Publication Date : 17/12/2010

(54) Title of the invention : MOTOR AND MAGNET SECURING SPRING OF MOTOR

(51) International classification :H02K1/27;

(31) Priority Document No

:2009-

140409

(32) Priority Date :11/06/2009

(33) Name of priority country :Japan

(86) International Application No

Filing Date

:NA

(87) International Publication No :NA

(61) Patent of Addition to Application Number

Filing Date

:NA

(62) Divisional to Application Number

Filing Date

:NA

(71)Name of Applicant :

1)KOKUSAN DENKI CO., LTD.

Address of Applicant :3744 OHKA, NUMAZU-SHI,

SHIZUOKA-KEN, JAPAN

(72)Name of Inventor :

1)YU SHOJI

(57) Abstract :

A motor including: a plurality of arcuate permanent magnets arranged on an inner peripheral surface of a yoke; and a magnet securing

spring inserted between adjacent permanent magnets, wherein the magnet securing spring includes first and second leaf spring

ortions arranged alongside each other, a connecting portion connecting rear ends of the leaf spring portions, an arm portion formed at

a front end of the second leaf spring portion, and a spacer portion integrally formed at a front end of the arm portion, the magnet

securing spring is inserted between the adjacent permanent magnets and then the spacer portion is inserted between the two leaf spring

portions of the magnet securing spring, and thus the plurality of permanent magnets are circumferentialy urged and secured to the

yoke.

No. of Pages : 46 No. of Claims : 13