CH533479A - Electric motor-driven hand or hammer drill with adjustable speed - Google Patents

Electric motor-driven hand or hammer drill with adjustable speed

Info

Publication number
CH533479A
CH533479A CH1607971A CH1607971A CH533479A CH 533479 A CH533479 A CH 533479A CH 1607971 A CH1607971 A CH 1607971A CH 1607971 A CH1607971 A CH 1607971A CH 533479 A CH533479 A CH 533479A
Authority
CH
Switzerland
Prior art keywords
electric motor
hammer drill
adjustable speed
driven hand
driven
Prior art date
Application number
CH1607971A
Other languages
German (de)
Inventor
Meyer Walter
Franz Dipl Ing Taschke
Original Assignee
Licentia Gmbh
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 Licentia Gmbh filed Critical Licentia Gmbh
Publication of CH533479A publication Critical patent/CH533479A/en

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
    • H02P7/292—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 static converters, e.g. AC to DC
    • H02P7/295—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 static converters, e.g. AC to DC of the kind having a thyristor or the like in series with the power supply and the motor

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Drilling And Boring (AREA)
CH1607971A 1970-11-13 1971-11-04 Electric motor-driven hand or hammer drill with adjustable speed CH533479A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702055859 DE2055859B2 (en) 1970-11-13 1970-11-13 ELECTRIC MOTOR DRIVEN HAND OR IMPACT DRILL WITH ADJUSTABLE SPEED

Publications (1)

Publication Number Publication Date
CH533479A true CH533479A (en) 1973-02-15

Family

ID=5787993

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1607971A CH533479A (en) 1970-11-13 1971-11-04 Electric motor-driven hand or hammer drill with adjustable speed

Country Status (3)

Country Link
CH (1) CH533479A (en)
DE (1) DE2055859B2 (en)
FR (1) FR2114492A5 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA973942A (en) * 1972-03-01 1975-09-02 Ignacy Supel Speed control device with independent speed control and on-off operating members
JP3673128B2 (en) * 1999-11-16 2005-07-20 株式会社マキタ Power tool with preset speed switch
DE102009032250A1 (en) * 2009-07-09 2011-01-13 Marquardt Gmbh Electrical device, particularly electrical power tool, has electric motor, such as battery or network-power tool, like drills, grinders, saws and angular grinders, where microcontroller is provided for controlling process

Also Published As

Publication number Publication date
FR2114492A5 (en) 1972-06-30
DE2055859B2 (en) 1971-12-16
DE2055859A1 (en) 1971-12-16

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Legal Events

Date Code Title Description
PL Patent ceased