JPS61180582U - - Google Patents

Info

Publication number
JPS61180582U
JPS61180582U JP1986001610U JP161086U JPS61180582U JP S61180582 U JPS61180582 U JP S61180582U JP 1986001610 U JP1986001610 U JP 1986001610U JP 161086 U JP161086 U JP 161086U JP S61180582 U JPS61180582 U JP S61180582U
Authority
JP
Japan
Prior art keywords
motor
magnetic
magnetic return
motor casing
permanent magnet
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.)
Granted
Application number
JP1986001610U
Other languages
English (en)
Other versions
JPS6211192Y2 (ja
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 filed Critical
Publication of JPS61180582U publication Critical patent/JPS61180582U/ja
Application granted granted Critical
Publication of JPS6211192Y2 publication Critical patent/JPS6211192Y2/ja
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C1/00—Dental machines for boring or cutting ; General features of dental machines or apparatus, e.g. hand-piece design
    • A61C1/02—Dental machines for boring or cutting ; General features of dental machines or apparatus, e.g. hand-piece design characterised by the drive of the dental tools
    • A61C1/06—Dental machines for boring or cutting ; General features of dental machines or apparatus, e.g. hand-piece design characterised by the drive of the dental tools with electric drive
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K23/00—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors
    • H02K23/02—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors characterised by arrangement for exciting
    • H02K23/04—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors characterised by arrangement for exciting having permanent magnet excitation
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K23/00—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors
    • H02K23/40—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors characterised by the arrangement of the magnet circuits
    • H02K23/44—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors characterised by the arrangement of the magnet circuits having movable, e.g. turnable, iron parts

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Dentistry (AREA)
  • Epidemiology (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
  • Dc Machiner (AREA)
  • Permanent Field Magnets Of Synchronous Machinery (AREA)

Description

【図面の簡単な説明】
第１図は本考案の実施例の直流小形モータの原
理構成を示す縦断面図、第２図、第３図は第１図
に示す直流小形モータの異なる状態における横断
面図、第４図は第１図に示す直流小形モータの分
解斜視図である。 １……駆動モータ、５……駆動軸、１１……回
転子、１２，１２ａ……永久磁石、１３……モー
タケーシング、２２，２２ａ……磁気帰路エレメ
ント、２４……結合体、２５……操作片。

Claims (1)

  1. 【実用新案登録請求の範囲】 (1) 静止した磁気帰路を形成する軟磁性材料か
    ら成る筒を有するシリンダ状モータケーシングと
    、このモータケーシング内の直径上に対向するよ
    うに対をなして配置された電機子励磁用永久磁石
    とを備え、駆動機構に軸方向に連結可能な歯科用
    ハンド機器中に回転可能に支承された器具を駆動
    するための永久磁石励磁式直流小形モータにおい
    て、回転数範囲を低い方から高い方へ、またはそ
    の逆に切り換えるため、モータケーシング１３に
    同心的にかつ電機子と永久磁石１２，１２ａとの
    間の空隙中において、前記永久磁石の数に等しい
    数の、かつモータの磁束を制御する軟磁性材料か
    ら成る磁気帰路エレメント２２，２２ａを結合体
    ２４に固定し、磁気帰路エレメント２２，２２ａ
    と結合体２４とをモータケーシング１３内に回転
    可能に配置し、これらの磁気帰路エレメント２２
    ，２２ａと結合体２４はモータケーシング１３を
    通して外部へ突出する操作片２５を備え、この操
    作片２５により、電機子を貫通する磁束を強め低
    い回転数範囲を有する第１の作動位置から、電機
    子を貫通する磁束を弱め高い回転数範囲を有する
    第２の作動位置へ、またはその逆に磁気帰路エレ
    メント２２，２２ａを切り換え得るようになつて
    おり、永久磁石１２，１２ａと磁気帰路エレメン
    ト２２，２２ａとは断面において円形リングのセ
    グメントを形成し、磁気帰路エレメント２２，２
    ２ａの周辺角αは、磁気帰路エレメント２２，２
    ２ａの端部が前記第１、第２の両作動位置におい
    て永久磁石１２，１２ａで覆われるような大きさ
    に選定されていることを特徴とする歯科用直流小
    形モータ。 (2) 磁気帰路エレメント２２，２２ａは非磁性
    材料から成る端面側のリング２４に固定され、こ
    のリング２４には操作片２５が固定され、この操
    作片２５は固定子１２、モータケーシング１３の
    貫通孔２６から突出し、第１、第２の両作動位置
    を限定する回転角の範囲に動き得るようになつて
    いることを特徴とする実用新案登録請求の範囲第
    １項記載のモータ。
JP1986001610U 1978-08-03 1986-01-09 Expired JPS6211192Y2 (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2834099A DE2834099C2 (de) 1978-08-03 1978-08-03 Permanentmagnetisch erregter Gleichstrom-Kleinstmotor zum Antrieb eines ankuppelbaren zahnärztlichen Handinstrumentes

Publications (2)

Publication Number Publication Date
JPS61180582U true JPS61180582U (ja) 1986-11-11
JPS6211192Y2 JPS6211192Y2 (ja) 1987-03-16

Family

ID=6046143

Family Applications (3)

Application Number Title Priority Date Filing Date
JP9938379A Pending JPS5526097A (en) 1978-08-03 1979-08-03 Small dc motor
JP1984078540U Granted JPS6018677U (ja) 1978-08-03 1984-05-28 歯科用直流小形モ−タ
JP1986001610U Expired JPS6211192Y2 (ja) 1978-08-03 1986-01-09

Family Applications Before (2)

Application Number Title Priority Date Filing Date
JP9938379A Pending JPS5526097A (en) 1978-08-03 1979-08-03 Small dc motor
JP1984078540U Granted JPS6018677U (ja) 1978-08-03 1984-05-28 歯科用直流小形モ−タ

Country Status (6)

Country Link
US (1) US4278907A (ja)
EP (1) EP0008049B1 (ja)
JP (3) JPS5526097A (ja)
AT (1) ATE1208T1 (ja)
DD (1) DD145592A5 (ja)
DE (1) DE2834099C2 (ja)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2930037A1 (de) * 1979-07-24 1981-02-12 Siemens Ag Gleichstrom-kleinstmotor insbesondere fuer den antrieb zahnaerztlicher werkzeuge
JPS5837781U (ja) * 1981-09-04 1983-03-11 三菱電機株式会社 始動電動機
DE3221146A1 (de) * 1982-06-04 1983-12-08 Kaltenbach & Voigt Gmbh & Co, 7950 Biberach Zahnaerztliches handstueck
FR2589644B1 (fr) * 1985-11-06 1987-12-04 Paris & Du Rhone Demarreur electrique pour moteur thermique a variateur de flux
GB8531212D0 (en) * 1985-12-18 1986-01-29 Lynch C Electrical machines
JPH0824420B2 (ja) * 1986-03-17 1996-03-06 株式会社日立製作所 永久磁石界磁式直流機
US4766362A (en) * 1986-11-24 1988-08-23 Simmonds Precision Products, Inc. Regulatable permanent magnet alternator
US4857785A (en) * 1988-09-09 1989-08-15 Allied-Signal Inc. Torque coupling device
US5787587A (en) * 1996-04-19 1998-08-04 Wahl Clipper Corp. Vibrator motor
JP3638056B2 (ja) * 1996-05-21 2005-04-13 株式会社デンソー 燃料ポンプおよびその製造方法
DE19644491A1 (de) * 1996-10-25 1998-04-30 Kaltenbach & Voigt Dentales Handstück
DE19843951C2 (de) 1998-05-26 2002-03-14 Kaltenbach & Voigt Antriebssystem für zahnärztliche Handstücke
US6208053B1 (en) * 1999-08-30 2001-03-27 Mpc Products Corporation Adjustable torque hysteresis clutch
DE10061900B4 (de) * 2000-12-12 2007-10-31 Sirona Dental Systems Gmbh Zahnärztliches Instrument mit einem angetriebenen Werkzeug und einer Übertragungseinrichtung mit magnetischen Kupplungselementen
US6781267B2 (en) * 2001-06-14 2004-08-24 Black & Decker Inc. Motor for a power tool
US6750628B2 (en) 2001-12-03 2004-06-15 Electric Boat Corporation Flux shunt wave shape control arrangement for permanent magnet machines
DE102006051510A1 (de) 2006-03-09 2007-09-13 Kaltenbach & Voigt Gmbh Zahnärztliches, zahnmedizinisches oder dentaltechnisches Handstück mit Elektromotor
ITCR20130007A1 (it) * 2013-02-21 2014-08-22 E M B Di Bergamaschini Alfonso Elettropompa centrifuga per aspirazione di fluidi aeriformi
JP2018152924A (ja) 2015-08-03 2018-09-27 ヤマハ発動機株式会社 鞍乗型車両用スタータモータ、エンジン始動装置、及び鞍乗型車両
JP2018152923A (ja) 2015-08-03 2018-09-27 ヤマハ発動機株式会社 ブラシモータ

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE217597C (ja) *
US501532A (en) * 1893-07-18 Device for regulating constant-current dynamo-electric machines
DE148716C (ja) *
US1072647A (en) * 1908-10-14 1913-09-09 Cleveland Armature Works Dynamo-electric machine.
US996253A (en) * 1911-01-09 1911-06-27 Frederic Ayres Johnson Dynamo-electric machine.
FR467012A (fr) * 1914-01-05 1914-06-02 Maurice Prost Procédé pour faire varier à volonté le voltage d'une machine généraratrice ou d'un moteur électrique
US1377229A (en) * 1917-07-25 1921-05-10 Tanner Engineering Company Inc Dynamo-field regulator
DE340672C (de) * 1919-02-04 1921-09-15 Carl Otto Steigleiter Einrichtung zur Regelung der Spannung von Fahrzeug-Lichtdynamos
US1470092A (en) * 1919-06-11 1923-10-09 Camillo Olivetti & C Ing Magneto-electric machine
US1399803A (en) * 1919-08-20 1921-12-13 Firm Of Robert Bosch Ag Magneto-electric sparking apparatus
DE434005C (de) * 1924-08-27 1926-09-20 Siemens Schuckertwerke G M B H Anordnung zur stabilen Regelung von selbsterregten Gleichstrommaschinen mittels Veraenderung des wirksamen Kraftflussquerschnitts
DE868175C (de) * 1941-01-16 1953-02-23 Gossen & Co G M B H P Anordnung zur Regelung des Magnetfeldes von magnetelektrischen Kleinmaschinen
DE939463C (de) * 1942-06-24 1956-02-23 Siemens Ag Kleinmaschine
US2949552A (en) * 1957-05-23 1960-08-16 Steb Soc Magnetic drives notably those of tachometers
US3209457A (en) * 1960-05-23 1965-10-05 Ritter Co Inc Dual controller for dental drills
DE1147674B (de) * 1961-02-23 1963-04-25 Licentia Gmbh Verfahren zur Fertigung von Magnetstaendern fuer Gleichstromkleinstmotoren
GB995691A (en) * 1963-07-10 1965-06-23 Smith & Sons Ltd S Improvements in or relating to permanent magnet stator direct current motors
DE6610841U (de) * 1964-10-10 1977-10-27 Siemens Ag Zahnaerztliche kleinbohrmaschine
DE1282778B (de) * 1964-12-21 1968-11-14 Licentia Gmbh Gleichstrommaschine mit Einrichtung zur Feldschwaechung
US3842300A (en) * 1973-04-30 1974-10-15 Ford Motor Co Laminated rotor structure for a dynamoelectric machine
DE2454609A1 (de) * 1974-11-18 1976-05-20 Siemens Ag Drehzahlstellbarer dauermagneterregter motor
DE2613061C3 (de) * 1976-03-26 1984-06-14 Siemens AG, 1000 Berlin und 8000 München Antriebsmotor für ein zahnärztliches Hand- und Winkelstück
US4110649A (en) * 1976-11-22 1978-08-29 Electric Vehicle Corporation Of America Variable speed DC motor

Also Published As

Publication number Publication date
JPS6018677U (ja) 1985-02-08
DD145592A5 (de) 1980-12-17
JPS6211192Y2 (ja) 1987-03-16
ATE1208T1 (de) 1982-07-15
EP0008049A1 (de) 1980-02-20
EP0008049B1 (de) 1982-06-16
DE2834099A1 (de) 1980-02-21
US4278907A (en) 1981-07-14
JPS6130456Y2 (ja) 1986-09-05
DE2834099C2 (de) 1987-03-19
JPS5526097A (en) 1980-02-25

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