GB1197373A – Improvements in or relating to Electromagnetic Stepping Motors
– Google Patents
GB1197373A – Improvements in or relating to Electromagnetic Stepping Motors
– Google Patents
Improvements in or relating to Electromagnetic Stepping Motors
Info
Publication number
GB1197373A
GB1197373A
GB4575/68A
GB457568A
GB1197373A
GB 1197373 A
GB1197373 A
GB 1197373A
GB 4575/68 A
GB4575/68 A
GB 4575/68A
GB 457568 A
GB457568 A
GB 457568A
GB 1197373 A
GB1197373 A
GB 1197373A
Authority
GB
United Kingdom
Prior art keywords
shaft
coil
units
polepieces
jan
Prior art date
1967-01-29
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.)
Expired
Application number
GB4575/68A
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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.)
1967-01-29
Filing date
1968-01-29
Publication date
1970-07-01
1968-01-29
Application filed by Fujitsu Ltd
filed
Critical
Fujitsu Ltd
1970-07-01
Publication of GB1197373A
publication
Critical
patent/GB1197373A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
H—ELECTRICITY
H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
H02K—DYNAMO-ELECTRIC MACHINES
H02K37/00—Motors with rotor rotating step by step and without interrupter or commutator driven by the rotor, e.g. stepping motors
H02K37/02—Motors with rotor rotating step by step and without interrupter or commutator driven by the rotor, e.g. stepping motors of variable reluctance type
H02K37/08—Motors with rotor rotating step by step and without interrupter or commutator driven by the rotor, e.g. stepping motors of variable reluctance type with rotors axially facing the stators
Abstract
1,197,373. Electric motors. FUJITSU Ltd. 29 Jan., 1968 [29 Jan., 19671, No. 4575/68. Heading H2A. A stepping motor consists of a plurality of individual units assembled together, where each unit includes a shaft mounted rotor, havng radially extending polepieces, lying within a stator assembly formed by two disc like cores with axially projecting radial polepieces and also housing a coil concentric with the shaft. In the motor shown, five units are used and each rotor S (a-e) is mounted on shaft 4 (a-e) which is coupled by tongue and slot coupling element 9 (a-e) to the shaft of the adjacent unit. The shafts are supported in bearings secured in the stator discs 6, 6<1> (a-e) which are clamped together in pairs by bolts to firmly secure spacer 7 (a-e) and coil 8 (a-e). Through stud 13 clamps all the units together with projection 10 (a-e) engaging counterbore 11 (a-e) to ensure axial alignment and key 12 ensuring correct angular positioning so that current passed through each coil in turn provides equal increments of rotation. A mounting flange 1 is bolted to the end unit and cover 20 encloses the motor.
GB4575/68A
1967-01-29
1968-01-29
Improvements in or relating to Electromagnetic Stepping Motors
Expired
GB1197373A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
JP1967007624U
JPS471781Y1
(en)
1967-01-29
1967-01-29
Publications (1)
Publication Number
Publication Date
GB1197373A
true
GB1197373A
(en)
1970-07-01
Family
ID=11670959
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB4575/68A
Expired
GB1197373A
(en)
1967-01-29
1968-01-29
Improvements in or relating to Electromagnetic Stepping Motors
Country Status (8)
Country
Link
US
(1)
US3483406A
(en)
JP
(1)
JPS471781Y1
(en)
BE
(1)
BE709972A
(en)
CH
(1)
CH468742A
(en)
FR
(1)
FR1580150A
(en)
GB
(1)
GB1197373A
(en)
NL
(1)
NL6800074A
(en)
SE
(1)
SE378490B
(en)
Families Citing this family (8)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
GB1368788A
(en)
*
1970-12-28
1974-10-02
Gujitsu Ltd
Electric stepping motor
US3774059A
(en)
*
1971-09-13
1973-11-20
Cambridge Thermionic Corp
Rotary stepping motor with laminated stator and rotor pole construction
US3869627A
(en)
*
1972-02-17
1975-03-04
Gen Time Corp
Synchronous motor
US3806744A
(en)
*
1972-12-14
1974-04-23
Ibm
High frequency stepper motor
US4127802A
(en)
*
1977-04-06
1978-11-28
Johnson Milton H
High torque stepping motor
US4198582A
(en)
*
1977-06-24
1980-04-15
Exxon Research & Engineering Co.
High performance stepper motor
FR2547123B1
(en)
*
1983-06-02
1986-03-21
Electricite De France
DYNAMO-ELECTRIC ROTATING MACHINE WITH VARIABLE RELUCTANCE
JP5950944B2
(en)
*
2011-02-10
2016-07-13
シェフラー テクノロジーズ アー・ゲー ウント コー． カー・ゲーＳｃｈａｅｆｆｌｅｒ Ｔｅｃｈｎｏｌｏｇｉｅｓ ＡＧ ＆ Ｃｏ． ＫＧ
Reluctance motor
Family Cites Families (3)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US3005118A
(en)
*
1954-07-16
1961-10-17
Agnes J Ranseen
Electric motors
US2797346A
(en)
*
1954-07-16
1957-06-25
Agnes Jones Ranseen
Electric motors
DE1158624B
(en)
*
1960-02-22
1963-12-05
Fuji Tsushinki Seizo Kabushiki
Stepper motor
1967
1967-01-29
JP
JP1967007624U
patent/JPS471781Y1/ja
not_active
Expired
1968
1968-01-03
NL
NL6800074A
patent/NL6800074A/xx
unknown
1968-01-11
CH
CH66668A
patent/CH468742A/en
unknown
1968-01-19
US
US699081A
patent/US3483406A/en
not_active
Expired – Lifetime
1968-01-26
BE
BE709972D
patent/BE709972A/xx
unknown
1968-01-29
GB
GB4575/68A
patent/GB1197373A/en
not_active
Expired
1968-01-29
FR
FR1580150D
patent/FR1580150A/fr
not_active
Expired
1969
1969-01-29
SE
SE6801136*3A
patent/SE378490B/xx
unknown
Also Published As
Publication number
Publication date
DE1638205B2
(en)
1972-09-14
SE378490B
(en)
1975-09-01
NL6800074A
(en)
1968-07-30
CH468742A
(en)
1969-02-15
BE709972A
(en)
1968-05-30
DE1638205A1
(en)
1971-04-22
US3483406A
(en)
1969-12-09
JPS471781Y1
(en)
1972-01-21
FR1580150A
(en)
1969-09-05
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Legal Events
Date
Code
Title
Description
1970-11-11
PS
Patent sealed [section 19, patents act 1949]
