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ES396116A1 - Speed control device for an electric motor in a sewing machine - Google Patents

Speed control device for an electric motor in a sewing machine

Info

Publication number
ES396116A1
ES396116A1 ES396116A ES396116A ES396116A1 ES 396116 A1 ES396116 A1 ES 396116A1 ES 396116 A ES396116 A ES 396116A ES 396116 A ES396116 A ES 396116A ES 396116 A1 ES396116 A1 ES 396116A1
Authority
ES
Spain
Prior art keywords
control device
electric motor
speed control
sewing machine
supply circuit
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.)
Expired
Application number
ES396116A
Other languages
Spanish (es)
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.)
Necchi SpA
Original Assignee
Necchi SpA
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 Necchi SpA filed Critical Necchi SpA
Publication of ES396116A1 publication Critical patent/ES396116A1/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P7/00—Arrangements for regulating or controlling the speed or torque of electric DC motors
    • H02P7/06—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual DC dynamo-electric motor by varying field or armature current
    • H02P7/18—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual DC dynamo-electric motor by varying field or armature current by master control with auxiliary power
    • H02P7/24—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual DC dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices
    • H02P7/28—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual DC dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices
    • H02P7/285—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual DC dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices controlling armature supply only
    • H02P7/288—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual DC dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices controlling armature supply only using variable impedance

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Sewing Machines And Sewing (AREA)

Abstract

Improvements in speed regulators for electric motors, particularly collector motors that drive sewing machines, characterized in that a start-up rheostat and a rectifying diode are provided in combination and that the rheostat control element, arranged to Varying the resistance portion inserted in the supply circuit, also operates, in correspondence with a preset value of its path, a switch capable of inserting and/or disengaging said diode placed in series in the motor supply circuit. (Machine-translation by Google Translate, not legally binding)
ES396116A 1971-01-11 1971-10-05 Speed control device for an electric motor in a sewing machine Expired ES396116A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT4290171 1971-01-11

Publications (1)

Publication Number Publication Date
ES396116A1 true ES396116A1 (en) 1974-04-16

Family

ID=11254479

Family Applications (1)

Application Number Title Priority Date Filing Date
ES396116A Expired ES396116A1 (en) 1971-01-11 1971-10-05 Speed control device for an electric motor in a sewing machine

Country Status (8)

Country Link
AT (1) AT312109B (en)
BE (1) BE777172A (en)
CH (1) CH545036A (en)
DE (1) DE2200999A1 (en)
ES (1) ES396116A1 (en)
FR (1) FR2119421A5 (en)
GB (1) GB1354157A (en)
SE (1) SE370298B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT345969B (en) * 1973-10-03 1978-10-10 Kaltenbach & Voigt DENTAL HANDPIECE

Also Published As

Publication number Publication date
AT312109B (en) 1973-12-27
GB1354157A (en) 1974-06-05
BE777172A (en) 1972-04-17
CH545036A (en) 1973-11-30
FR2119421A5 (en) 1972-08-04
SE370298B (en) 1974-10-07
DE2200999A1 (en) 1972-07-20

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