JPH02294240A - Rotor structure of stepping motor - Google Patents

Rotor structure of stepping motor

Info

Publication number
JPH02294240A
JPH02294240A JP1115875A JP11587589A JPH02294240A JP H02294240 A JPH02294240 A JP H02294240A JP 1115875 A JP1115875 A JP 1115875A JP 11587589 A JP11587589 A JP 11587589A JP H02294240 A JPH02294240 A JP H02294240A
Authority
JP
Japan
Prior art keywords
spacer
magnet
resin
molded
rotor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP1115875A
Other languages
Japanese (ja)
Inventor
Kunio Suganuma
Kenichi Yoshikawa
Masa Koyanagi
Masao Mafune
Tsuneji Takasugi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Citizen Watch Co Ltd
Original Assignee
Citizen Watch Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Citizen Watch Co Ltd filed Critical Citizen Watch Co Ltd
Priority to JP1115875A priority Critical patent/JPH02294240A/en
Publication of JPH02294240A publication Critical patent/JPH02294240A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To improve properties of an apparatus by forming two permanent magnets around a resin-molded spacer secured to a rotor.
CONSTITUTION: A resin-molded spacer 33 is secured to the end 32a on the side opposite to the lead screw 31 of the rotor shaft 32 of a rotor 30 and said spacer 33 has magnet-securing parts 33a, 33b almost at its both ends. Also, projecting parts 33d, 33g are formed at both ends of the spacer 33. A resin magnet is used as a magnet 34 and in two rows of said magnet-securing parts 33a, 33b of the spacer 33, respective ring magnets 34a, 34b are molded into shapes projecting from respective projecting parts 33d, 33g of the spacer 33. Then, said magnet 34 is connected by two joints 34c, 34d between said ring magnets 34a, 34b.
COPYRIGHT: (C)1990,JPO&Japio
JP1115875A 1989-05-09 1989-05-09 Rotor structure of stepping motor Pending JPH02294240A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1115875A JPH02294240A (en) 1989-05-09 1989-05-09 Rotor structure of stepping motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1115875A JPH02294240A (en) 1989-05-09 1989-05-09 Rotor structure of stepping motor

Publications (1)

Publication Number Publication Date
JPH02294240A true JPH02294240A (en) 1990-12-05

Family

ID=14673327

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1115875A Pending JPH02294240A (en) 1989-05-09 1989-05-09 Rotor structure of stepping motor

Country Status (1)

Country Link
JP (1) JPH02294240A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0660261U (en) * 1993-01-20 1994-08-19 株式会社三協精機製作所 Rotor with permanent magnet for small electric motor
JPH08237915A (en) * 1995-12-14 1996-09-13 Fuji Koki Seisakusho:Kk Electric motor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0660261U (en) * 1993-01-20 1994-08-19 株式会社三協精機製作所 Rotor with permanent magnet for small electric motor
JPH08237915A (en) * 1995-12-14 1996-09-13 Fuji Koki Seisakusho:Kk Electric motor

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