EP0069125B1 - Demarreur pour moteur a combustion - Google Patents

Demarreur pour moteur a combustion Download PDF

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Publication number
EP0069125B1
EP0069125B1 EP81903113A EP81903113A EP0069125B1 EP 0069125 B1 EP0069125 B1 EP 0069125B1 EP 81903113 A EP81903113 A EP 81903113A EP 81903113 A EP81903113 A EP 81903113A EP 0069125 B1 EP0069125 B1 EP 0069125B1
Authority
EP
European Patent Office
Prior art keywords
bearing
shaft
sleeve
gear
starting device
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
EP81903113A
Other languages
German (de)
English (en)
Other versions
EP0069125A1 (fr
Inventor
Walter Rühle
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP0069125A1 publication Critical patent/EP0069125A1/fr
Application granted granted Critical
Publication of EP0069125B1 publication Critical patent/EP0069125B1/fr
Expired legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N15/00—Other power-operated starting apparatus; Component parts, details, or accessories, not provided for in, or of interest apart from groups F02N5/00 - F02N13/00
    • F02N15/02—Gearing between starting-engines and started engines; Engagement or disengagement thereof
    • F02N15/04—Gearing between starting-engines and started engines; Engagement or disengagement thereof the gearing including disengaging toothed gears
    • F02N15/06—Gearing between starting-engines and started engines; Engagement or disengagement thereof the gearing including disengaging toothed gears the toothed gears being moved by axial displacement
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N15/00—Other power-operated starting apparatus; Component parts, details, or accessories, not provided for in, or of interest apart from groups F02N5/00 - F02N13/00
    • F02N15/02—Gearing between starting-engines and started engines; Engagement or disengagement thereof
    • F02N15/04—Gearing between starting-engines and started engines; Engagement or disengagement thereof the gearing including disengaging toothed gears
    • F02N15/043—Gearing between starting-engines and started engines; Engagement or disengagement thereof the gearing including disengaging toothed gears the gearing including a speed reducer
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/13—Machine starters
    • Y10T74/131—Automatic
    • Y10T74/132—Separate power mesher
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/13—Machine starters
    • Y10T74/131—Automatic
    • Y10T74/137—Reduction gearing

Definitions

  • the invention is based on a starting device for internal combustion engines according to the preamble of claim 1.
  • the ring gear of the spur gear countershaft is designed for itself and is then positively fastened on the gear shaft to a steep-thread section via a straight toothing on the gear shaft.
  • the disadvantage here is that the connection of the ring gear with the gear shaft is relatively weak and the ring gear has only a relatively short seat length on the gear shaft, which means that there is a risk of premature wear due to breaking and tilting.
  • the ring gear is provided with a bearing approach. The ring gear with the bearing boss is pressed onto the gear shaft.
  • the press connection between the ring gear and the gear shaft is only sufficient to transmit a certain maximum torque. If the maximum torque is exceeded, the ring gear and gear shaft rotate at different speeds. This is used as shock absorption.
  • a disadvantage is the longer construction because can connect rich for the bearing projection of the ring gear of the steep threaded portion of the gear shaft until the Befest Trentsbe- 'on which the driver of the freewheel sitting.
  • JP-A-55-98 661 discloses a spur gear train in which the ring gear is formed in one piece with the gear shaft. It is again disadvantageous that the transmission shaft serves as a torque-transmitting part between the drive shaft of the starting motor and the starting pinion. The relatively thin and long gear shaft is thus exposed to torsional stresses and ignition shocks, which can lead to breaks in the gear shaft and / or damage to the ring gear connected to it in one piece.
  • the starting device according to the invention for internal combustion engines with the characterizing features of claim 1 has the advantage that the ring gear formed in one piece with the sleeve has a long guide length on a relatively thin and thus material-saving gear shaft, with which it does not have to be firmly connected, because it is at the same time has the steep thread section. This enables a shortened overall length of the starting device and the thin transmission shaft is not required as a torque-transmitting part.
  • a starter has a starter motor 1 with a housing 2, in which an excitation winding 3 is fastened.
  • a drive shaft 4 carries an armature 5 and a commutator 6. It is rotatably supported with its end on the commutator side in a bearing cover 7 and with its other end in an intermediate bearing 8.
  • Bearing cover 7 and intermediate bearing 8 are each fastened with tie rods 9 on an end face of the housing 2 in a manner known per se.
  • a drive bearing 10 is screwed in a known and not shown manner.
  • an engagement relay 12 is fastened with screws 13 to the drive bearing 10 with the interposition of a sealing part 11.
  • a first bearing bore 14 is formed in the intermediate bearing 8, in which a bearing 15 is inserted, in which the drive shaft 4 is rotatably received.
  • One end of the drive shaft 4 is rotatably received in the bearing cap 7.
  • the other end of the drive shaft 4 protruding through the bearing 15 is provided with straight toothing 16 and serves as the driving wheel of a spur gear.
  • the spur gear has a ring gear 17 which is in engagement with the spur toothing 16.
  • the ring gear 17 is formed in one piece with a bearing sleeve 18.
  • the part consisting of ring gear 17 and bearing sleeve 18 is designed, for example, as an extruded part. It can also be designed as a molded part made of plastic.
  • a steep thread 19 is also formed on the outside of the bearing sleeve 18.
  • the ring gear 17 with the bearing sleeve 18 is mounted on a gear shaft 20.
  • One end of the gear shaft 20 is rotatably received in a bearing 21 which is inserted in a second bearing bore 22 of the intermediate bearing 8.
  • the second end 23 of the gear shaft 20 is rotatably received in a bearing 24 of a bearing extension 25 of the drive bearing 10.
  • a driver 26 is arranged so that it can be screwed on the steep thread 19 of the bearing sleeve 18 seated on the gear shaft 20.
  • the driver 26 is connected in one piece via a flange 27 to an outer race 28 of a freewheel 29.
  • An inner race 30 of the freewheel 29 is designed as an extension of a starter pinion 31 which is rotatably and displaceably seated on the gear shaft 20.
  • the races 28 and 30 enclose spaces in which rollers 32 and associated springs, not shown, are accommodated.
  • a cover plate 33 closes the rooms.
  • a shim 34 rests on its outer side.
  • a fastener 35 attached to the outer race 28 engages over the shim 34 and holds the freewheel members 28, 30, 32, 33, 34 together.
  • a stop ring 36 is arranged on the gear shaft 20 near the bearing extension 25. Between the starter pinion 31 and the stop ring 36, a ring gear 37 of an internal combustion engine to be turned projects through a mouth-like opening 38 of the drive bearing 10 into the engagement area of the starter pinion 31.
  • An engagement spring 39 is seated on the driver 26 between the flange 27 and a first stop sleeve 40 also arranged on the driver 26.
  • a driver disk 41 is arranged to be axially and radially movable between the first stop sleeve 40 and a second stop sleeve 42.
  • the second stop sleeve 42 bears against a stop ring 43 of the driver 26.
  • the driving plate 41 is articulated on a fork-shaped engagement lever 44.
  • the engagement lever 44 is pivotally mounted on a bearing part 45.
  • the bearing part 45 is inserted into recesses in the drive bearing 10.
  • the free end 46 of the engagement lever 44 protrudes into a slot 47 of a switching rod 48 of a magnet armature of the engagement relay 12 (not shown in more detail).
  • a return spring 49 is arranged between the end 46 of the engagement lever 44 and the engagement relay 12, one end of which rests on a spring bearing 50.
  • the spring bearing 50 is strip-shaped, also extends through the slot 47 of the shift rod 48 and its ends bent at right angles engage over the adjacent end section of the return spring 49.
  • a cover cap 51 is essentially cup-shaped. It surrounds the ring gear 17 projecting into the drive bearing 10, the bearing sleeve 18 including the transmission shaft 20 extending through a hole in the bottom of the cover cap 51.
  • the flange-like edge 52 of the cover cap 51 is inserted between a projecting support edge 53 of the intermediate bearing 8 on the one hand and an inner shoulder 54 on the end face 54 of the drive bearing 10 on the other hand.
  • Characterized the starter motor 1 with the spur gear 16, 17 dirt and moisture proof from the open via the mouth-like opening 38 drive bearing 10.
  • the lubricant introduced into the gear 16, 17 can no longer be thrown out or run out.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Mounting Of Bearings Or Others (AREA)
  • Gear Transmission (AREA)
  • Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
  • Sliding-Contact Bearings (AREA)

Claims (4)

1. Dispositif de démarrage pour moteurs à combustion interne, avec un moteur d'entraînement, dont l'arbre d'entraînement (4) fait partie d'une transmission à engrenage droit comportant une roue creuse (17) montée sur un arbre de transmission, cette roue creuse étant en liaison opérationnelle, par l'intermédiaire d'une roue libre et d'un organe d'entraînement, lequel est disposé mobile sur une partie à filetage raide, avec un pignon de démarrage (31) disposé, en étant susceptible de tourner et de se déplacer longitudjnalement, sur l'arbre de transmission (20), dispositif caractérisé en ce que la roue creuse (17) est réalisée d'une seule pièce avec une douille (18), portant le filetage raide (19) et sur laquelle est placé l'organe d'entraînement (26).
2. Dispositif de démarrage selon la revendication 1, caractérisé en ce que la roue creuse (17) venue d'une seule pièce avec la douille (18) est une pièce extrudée.
3. Dispositif de démarrage selon la revendication 1, caractérisé en ce que la roue creuse (17) venue d'une seule pièce avec la douille (18) est une pièce moulée par injection en matière plastique.
4. Dispositif de démarrage selon une des revendications 1 à 3, caractérisé en ce qu'un capot de recouvrement (51) s'appliquant sur le support intermédiaire (8) vient en prise de façon étanche sur la roue creuse (17).
EP81903113A 1981-01-14 1981-10-31 Demarreur pour moteur a combustion Expired EP0069125B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3100869A DE3100869A1 (de) 1981-01-14 1981-01-14 "andrehvorrichtung fuer brennkraftmaschinen"
DE3100869 1981-01-14

Publications (2)

Publication Number Publication Date
EP0069125A1 EP0069125A1 (fr) 1983-01-12
EP0069125B1 true EP0069125B1 (fr) 1984-09-05

Family

ID=6122566

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81903113A Expired EP0069125B1 (fr) 1981-01-14 1981-10-31 Demarreur pour moteur a combustion

Country Status (7)

Country Link
US (1) US4495825A (fr)
EP (1) EP0069125B1 (fr)
JP (1) JPH0119067B2 (fr)
DE (2) DE3100869A1 (fr)
ES (1) ES8302856A1 (fr)
IT (1) IT1149402B (fr)
WO (1) WO1982002419A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0127880B1 (fr) * 1983-05-31 1988-01-07 Hitachi, Ltd. Démarreur à réducteur
JPS6078981U (ja) * 1983-11-07 1985-06-01 三菱電機株式会社 同軸型スタータ
US4574648A (en) * 1984-01-13 1986-03-11 Debello Robert J Pinion gear retainer assembly for a starter motor of an internal combustion engine
JPS60184456U (ja) * 1984-05-18 1985-12-06 三菱電機株式会社 歯車
US5295404A (en) * 1992-12-04 1994-03-22 General Motors Corporation Shift lever mechanism for engine starting apparatus
JP3220596B2 (ja) * 1994-07-28 2001-10-22 株式会社日立製作所 スタータ
FR2725758B1 (fr) * 1994-10-18 1997-01-10 Valeo Equip Electr Moteur Demarreur electrique pour un moteur a combustion de vehicule automobile

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1258192B (de) * 1960-03-22 1968-01-04 Bertin & Cie Andrehvorrichtung fuer Brennkraftmaschinen
US2998729A (en) * 1960-08-08 1961-09-05 Arthur J Warsaw Engine starting apparatus
US3024780A (en) * 1960-08-22 1962-03-13 Eaton Stamping Co Side mounted starter
DE1151984B (de) * 1961-06-29 1963-07-25 Bosch Gmbh Robert Schubschraubtrieb fuer Andrehmotoren von Brennkraftmaschinen
FR1311876A (fr) * 1961-09-29 1962-12-14 Espanola Magnetos Fab Moteur de démarreur pour moteur à combustion ou analogue
GB964675A (en) * 1962-05-28 1964-07-22 Lucas Industries Ltd Starting mechanism for internal combustion engines
GB1485119A (en) * 1973-10-05 1977-09-08 Lucas Electrical Ltd Starter motors
GB1547766A (en) * 1975-08-21 1979-06-27 Lucas Industries Ltd Starter motors
JPS5615404Y2 (fr) * 1975-12-03 1981-04-10
US4192195A (en) * 1975-12-03 1980-03-11 Nippondenso Co., Ltd. Starter with a shock absorbing arrangement
JPS5584853A (en) * 1978-12-18 1980-06-26 Sawafuji Electric Co Ltd Engine starter
JPS5598661A (en) * 1979-01-24 1980-07-26 Hitachi Ltd Starter including reduction gears
JPS6053786B2 (ja) * 1979-12-24 1985-11-27 沢藤電機株式会社 エンジンの始動装置

Also Published As

Publication number Publication date
EP0069125A1 (fr) 1983-01-12
ES508688A0 (es) 1982-12-01
WO1982002419A1 (fr) 1982-07-22
JPH0119067B2 (fr) 1989-04-10
DE3100869A1 (de) 1982-08-12
JPS57502178A (fr) 1982-12-09
IT8219002A0 (it) 1982-01-05
ES8302856A1 (es) 1982-12-01
US4495825A (en) 1985-01-29
DE3165866D1 (en) 1984-10-11
IT1149402B (it) 1986-12-03

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