JPH031679U

JPH031679U -

Info

Publication number: JPH031679U
Application number: JP6048989U
Authority: JP
Priority date: 1989-05-25
Filing date: 1989-05-25
Publication date: 1991-01-09

Description

[Brief explanation of drawings]

第１図から第３図は本考案の第１実施例を示し
、第１図はロータの縦断面図、第２図はロータの
一部の拡大断面図、第３図はステツピングモータ
全体の縦断面図である。第４図および第５図は本
考案の第２実施例を示し、第４図はロータの縦断
面図、第５図はロータの一部の拡大断面図である
。第６図は本考案の第３実施例を示すロータの縦
断面図である。第７図は本考案の第４実施例を示
すロータの縦断面図である。１５…ロータ、１６…ロータマグネツト、１７
…ロータ軸、１８…中継部材、１９…マグネツト
取付け部、２０…段部、２１…接着剤、２２…段
差。 1 to 3 show a first embodiment of the present invention, in which FIG. 1 is a longitudinal sectional view of the rotor, FIG. 2 is an enlarged sectional view of a part of the rotor, and FIG. 3 is an overall view of the stepping motor. FIG. 4 and 5 show a second embodiment of the present invention, in which FIG. 4 is a longitudinal sectional view of the rotor, and FIG. 5 is an enlarged sectional view of a part of the rotor. FIG. 6 is a longitudinal sectional view of a rotor showing a third embodiment of the present invention. FIG. 7 is a longitudinal sectional view of a rotor showing a fourth embodiment of the present invention. 15...Rotor, 16...Rotor magnet, 17
...Rotor shaft, 18...Relay member, 19...Magnet attachment part, 20...Step part, 21...Adhesive, 22...Step difference.

Claims

[Claims for Utility Model Registration] (1) A pair of ring-shaped rotor magnets, a rotor shaft disposed passing through the center of these magnets, and a rotor shaft fixed to the rotor shaft and an outer peripheral portion thereof. and a relay member to which the rotor magnet is fixed, the relay member having a disk-shaped magnet mounting portion, and annular shaped magnets on both sides of the periphery of the mounting portion. One end of the rotor magnet is fitted into each of these steps, and an adhesive injected from the inside of the rotor magnet is applied to the fitting portion. A rotor for a stepping motor, characterized in that the rotor magnets are fixed in a cantilevered manner on both sides of the circumferential portion of the magnet mounting portion through the magnets. (2) The outer diameter of the magnet attachment part of the relay member is made smaller than the outer diameter of the rotor magnet and larger than the inner diameter of the rotor magnet, and the magnet is fitted and fixed to the stepped part. 2. The stepping motor rotor according to claim 1, wherein a step is formed between one end of the pair of rotor magnets and an outer circumferential surface of the magnet mounting portion.