IT1165132B - Limitatore di velocita' massima per utensili elettrici - Google Patents

Limitatore di velocita' massima per utensili elettrici

Info

Publication number
IT1165132B
IT1165132B IT23952/79A IT2395279A IT1165132B IT 1165132 B IT1165132 B IT 1165132B IT 23952/79 A IT23952/79 A IT 23952/79A IT 2395279 A IT2395279 A IT 2395279A IT 1165132 B IT1165132 B IT 1165132B
Authority
IT
Italy
Prior art keywords
maximum speed
speed limiter
electric tools
parallel
actuating mechanism
Prior art date
Application number
IT23952/79A
Other languages
English (en)
Other versions
IT7923952A0 (it
Original Assignee
Star Utensili Elett
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 Star Utensili Elett filed Critical Star Utensili Elett
Priority to IT23952/79A priority Critical patent/IT1165132B/it
Publication of IT7923952A0 publication Critical patent/IT7923952A0/it
Priority to US06/160,583 priority patent/US4371906A/en
Priority to MX182920A priority patent/MX147858A/es
Priority to EP80103625A priority patent/EP0021434B1/en
Priority to DE8080103625T priority patent/DE3066575D1/de
Priority to AT80103625T priority patent/ATE6326T1/de
Priority to AU59718/80A priority patent/AU539406B2/en
Priority to JP8726480A priority patent/JPS5638990A/ja
Application granted granted Critical
Publication of IT1165132B publication Critical patent/IT1165132B/it

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/08—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors
    • H02H7/093—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors against increase beyond, or decrease below, a predetermined level of rotational speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H35/00—Switches operated by change of a physical condition
    • H01H35/06—Switches operated by change of speed
    • H01H35/10—Centrifugal switches
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S388/00—Electricity: motor control systems
    • Y10S388/90—Specific system operational feature
    • Y10S388/903—Protective, e.g. voltage or current limit

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Non-Positive-Displacement Pumps (AREA)
  • Sawing (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Portable Power Tools In General (AREA)
  • Auxiliary Devices For Machine Tools (AREA)
  • Gripping On Spindles (AREA)
  • Discharge Heating (AREA)
  • Lubricants (AREA)
  • Control Of Ac Motors In General (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
IT23952/79A 1979-06-28 1979-06-28 Limitatore di velocita' massima per utensili elettrici IT1165132B (it)

Priority Applications (8)

Application Number Priority Date Filing Date Title
IT23952/79A IT1165132B (it) 1979-06-28 1979-06-28 Limitatore di velocita' massima per utensili elettrici
US06/160,583 US4371906A (en) 1979-06-28 1980-06-18 Overspeed protective apparatus for a portable tool
MX182920A MX147858A (es) 1979-06-28 1980-06-26 Mejoras en dispositivo de proteccion de velocidad excesiva en una herramienta portatil
EP80103625A EP0021434B1 (en) 1979-06-28 1980-06-26 Overspeed protective apparatus for a portable tool
DE8080103625T DE3066575D1 (en) 1979-06-28 1980-06-26 Overspeed protective apparatus for a portable tool
AT80103625T ATE6326T1 (de) 1979-06-28 1980-06-26 Vorrichtung zur drehzahlbegrenzung fuer ein tragbares werkzeug.
AU59718/80A AU539406B2 (en) 1979-06-28 1980-06-27 Overspeed centrifugal switch
JP8726480A JPS5638990A (en) 1979-06-28 1980-06-28 Superroverspeed protecting device for portable tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT23952/79A IT1165132B (it) 1979-06-28 1979-06-28 Limitatore di velocita' massima per utensili elettrici

Publications (2)

Publication Number Publication Date
IT7923952A0 IT7923952A0 (it) 1979-06-28
IT1165132B true IT1165132B (it) 1987-04-22

Family

ID=11211097

Family Applications (1)

Application Number Title Priority Date Filing Date
IT23952/79A IT1165132B (it) 1979-06-28 1979-06-28 Limitatore di velocita' massima per utensili elettrici

Country Status (8)

Country Link
US (1) US4371906A (it)
EP (1) EP0021434B1 (it)
JP (1) JPS5638990A (it)
AT (1) ATE6326T1 (it)
AU (1) AU539406B2 (it)
DE (1) DE3066575D1 (it)
IT (1) IT1165132B (it)
MX (1) MX147858A (it)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3323059A1 (de) * 1983-06-27 1985-01-10 Robert Bosch Gmbh, 7000 Stuttgart Elektrische arbeitsmaschine mit ueberdrehsicherung
GB2269244B (en) * 1992-07-30 1996-05-08 Yang Tai Her Compound motor control circuit
GB9506460D0 (en) * 1995-03-29 1995-05-17 Switched Reluctance Drives Ltd Apparatus and method for starting a single-phase variable reluctance motor
US6906479B2 (en) * 2002-08-06 2005-06-14 Honeywell International, Inc. Gas turbine engine starter generator with multiple windings on each exciter stator pole
US6768278B2 (en) 2002-08-06 2004-07-27 Honeywell International, Inc. Gas turbine engine starter generator with switchable exciter stator windings
US6909263B2 (en) * 2002-10-23 2005-06-21 Honeywell International Inc. Gas turbine engine starter-generator exciter starting system and method including a capacitance circuit element
US20040183308A1 (en) * 2003-03-17 2004-09-23 Mingzhou Xu Gas turbine engine starter generator that selectively changes the number of rotor poles
EP1901891B1 (en) * 2005-07-11 2016-09-28 Black & Decker Inc. Soft start for electric motor of a power tool
DE112007001111T5 (de) * 2006-05-04 2009-02-26 Otis Elevator Co., Farmington Vorrichtung zum Schutz vor überhöhter Geschwindigkeit für Fahrtreppen
WO2008048615A2 (en) 2006-10-17 2008-04-24 Desa Ip, Llc Hybrid electric device
FI119135B (fi) * 2006-10-17 2008-07-31 Abb Oy Tahtikone
US7728534B2 (en) * 2006-10-17 2010-06-01 Mtd Products Inc Hybrid electric lawnmower
US20080120955A1 (en) * 2006-10-17 2008-05-29 Lucas Delbert R Hybrid electric lawnmower
US8732896B2 (en) 2006-10-17 2014-05-27 Mtd Products Inc Hybrid electric cleaning device
US7479754B2 (en) * 2006-10-17 2009-01-20 Desa Ip Llc Hybrid electric lawnmower
US8076873B1 (en) 2007-06-01 2011-12-13 Mtd Products Inc Hybrid outdoor power equipment
EP2536536A1 (en) * 2010-02-17 2012-12-26 GARDENA Manufacturing GmbH Power tools
CN105189042B (zh) * 2013-05-08 2017-04-12 阿特拉斯·科普柯工业技术公司 具有超速安全设备的气动动力工具
US10665995B2 (en) 2017-03-23 2020-05-26 Atl Technology, Llc Mechanical use-limiting connector for electrical tool
US10003135B1 (en) * 2017-03-23 2018-06-19 Atl Technology, Llc Mechanical use-limiting connector for electrical tool

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US411783A (en) * 1889-10-01 Governor for electro-dynamic machines
GB872314A (en) * 1957-08-21 1961-07-05 Erwin Murschel Improvements relating to portable grinding machines
DE1154858B (de) * 1962-12-13 1963-09-26 Ernst Weiss Dipl Kfm Elektromotor, insbesondere Kleinstmotor, mit Vorrichtung zur selbsttaetigen Drehzahlregelung
DE1230487B (de) * 1963-01-17 1966-12-15 Licentia Gmbh Drehzahlumschaltbares elektrisches Handwerkzeug
US3286150A (en) * 1964-09-28 1966-11-15 Black & Decker Mfg Co Motor speed control means
US3510615A (en) * 1967-10-10 1970-05-05 William L Stelter Adjustable mounting means for speed responsive switch
US3564372A (en) * 1968-11-29 1971-02-16 Black & Decker Mfg Co Electrical power control means
US3860905A (en) * 1972-07-05 1975-01-14 Mario Guerini Speed indicator and speed signalling device for vehicles in general
DE2437541A1 (de) * 1974-08-03 1976-02-19 Licentia Gmbh Elektrowerkzeug mit einer einrichtung zur drehzahlbegrenzung

Also Published As

Publication number Publication date
AU539406B2 (en) 1984-09-27
EP0021434B1 (en) 1984-02-15
ATE6326T1 (de) 1984-03-15
MX147858A (es) 1983-01-24
JPS5638990A (en) 1981-04-14
IT7923952A0 (it) 1979-06-28
US4371906A (en) 1983-02-01
EP0021434A1 (en) 1981-01-07
AU5971880A (en) 1981-01-08
DE3066575D1 (en) 1984-03-22

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