EP0069125B1 - Starter for combustion engine - Google Patents

Starter for combustion engine 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)
French (fr)
Other versions
EP0069125A1 (en
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/en
Application granted granted Critical
Publication of EP0069125B1 publication Critical patent/EP0069125B1/en
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.

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  • 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)
  • Sliding-Contact Bearings (AREA)
  • Gear Transmission (AREA)
  • Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
  • Mounting Of Bearings Or Others (AREA)

Abstract

A speed reduction unit (16, 17) is arranged between the driving shaft (4) of a starting motor (1) and a transmission shaft (20) which carries a moving transmission (39 to 42, 29) provided with a starting pinion (31). The crown (17) of the reduction unit is of a one piece type with the bearing sleeve (18) provided with a quick pitch threading (19), and is mounted on the shaft (20). The driving lug (26) of the free wheel (31) is mounted on the quick pitch threading (19) so as to reduce the overall size. A casing (51) surrounding the crown (17) is arranged between the intermediary bearing (20, 53) and the driving bearing (10, 54) and forms a lubricant-tight barrier between the reduction unit (16, 17) and the inside of the driving bearing (10).

Description

Stand der TechnikState of the art

Die Erfindung geht von einer Andrehvorrichtung für Brennkraftmaschinen nach der Gattung des Anspruchs 1 aus. Bei der solchen bekannten Andrehvorrichtung ist das Hohlrad des Stirnradvorgeleges für sich ausgebildet und auf der Getriebewelle anschließend an einen Steilgewindeabschnitt formschlüssig über eine Geradverzahnung auf der Getriebewelle befestigt. Dabei ist von Nachteil, daß die Verbindung Hohlrad mit Getriebewelle verhältnismäßig schwach ausgebildet ist und das Hohlrad nur eine verhältnismäßig kurze Sitzlänge auf der Getriebewelle hat, wodurch die Gefahr vorzeitigen Verschleißes durch Brechen und Verkanten gegeben ist. Weiterhin ist aus DE-A 26 54 987 ein Stirnradvorgelege bekannt, dessen Hohlrad mit einem Lageransatz versehen ist. Das Hohlrad mit dem Lageransatz ist auf die Getriebewelle gepreßt. Die Preßverbindung zwischen Hohlrad und Getriebewelle reicht jedoch nur zur Übertragung eines bestimmten maximalen Drehmoments aus. Wird das maximale Drehmoment überschritten, drehen sich Hohlrad und Getriebewelle mit verschiedenen Drehzahlen. Das wird zwar als Stoßdämpfung genützt. Von Nachteil ist jedoch die längere Bauweise, weil sich erst an den Befestigungsbe- ' reich für den Lageransatz des Hohlrades der Steilgewindeabschnitt der Getriebewelle anschließen kann, auf dem der Mitnehmer des Freilaufs sitzt.The invention is based on a starting device for internal combustion engines according to the preamble of claim 1. In the known starting device of this type, 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. Furthermore, from DE-A 26 54 987 a spur gear is known, the ring gear is provided with a bearing approach. The ring gear with the bearing boss is pressed onto the gear shaft. However, 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. However, 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 Befestigungsbe- 'on which the driver of the freewheel sitting.

Außerdem ist aus JP-A-55-98 661 ein Stirnradvorgelege bekannt, bei dem das Hohlrad einstückig mit der Getriebewelle ausgebildet ist. Dabei ist wiederum von Nachteil, daß die Getriebewelle als Drehmoment übertragendes Teil zwischen der Antriebswelle des Andrehmotors und dem Andrehritzel dient. Die verhältnismäßig dünne und lange Getriebewelle ist somit Torsionsbeanspruchungen und Zündstößen ausgesetzt, die zu Brüchen der Getriebewelle und/ oder Schäden an dem einstückig mit ihr verbundenen Hohlrad führen können.In addition, 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.

Vorteile der ErfindungAdvantages of the invention

Die erfindungsgemäße Andrehvorrichtung für Brennkraftmaschinen mit den kennzeichnenden Merkmalen des Anspruchs 1 hat demgegenüber den Vorteil, daß das mit der Hülse einteilig ausgebildete Hohlrad eine lange Führungslänge auf einer verhältnismäßig dünnen und somit materialsparenden Getriebewelle hat, mit der es nicht fest verbunden sein muß, weil es zugleich den Steilgewindeabschnitt aufweist. Dadurch wird eine verkürzte Baulänge der Andrehvorrichtung ermöglicht und die dünne Getriebewelle nicht als Drehmoment übertragendes Teil benötigt.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.

Durch die in den Unteransprüchen aufgeführten Maßnahmen sind vorteilhafte Weiterbildungen der im Anspruch 1 angegebenen Andrehvorrichtung möglich. Besonders vorteilhaft ist durch die Ausbildung des Holrades mit Steilgewindehülse als Fließpreßteil oder Spritzteil aus Kunststoff die Verringerung der Zahl der Einzelteile und somit der Montagekosten. Darüberhinaus läßt sich bei der raumsparenden Ausbildung und Anordnung das Vorgelege mit einfachen Mitteln schmiermitteldicht machen.The measures listed in the subclaims allow advantageous developments of the starting device specified in claim 1. The reduction of the number of individual parts and thus of the assembly costs is particularly advantageous due to the design of the ring wheel with steep-threaded sleeve as an extruded part or molded part made of plastic. In addition, the lay-up can be made lubricant-tight with simple means in the space-saving design and arrangement.

Zeichnungdrawing

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt. Sie zeigt eine Andrehvorrichtung teilweise im Längsschnitt.An embodiment of the invention is shown in the drawing. It shows a starter partially in longitudinal section.

Beschreibung des AusführungsbeispielesDescription of the embodiment

Eine Andrehvorrichtung hat einen Andrehmotor 1 mit einem Gehäuse 2, in dem eine Erregerwicklung 3 befestigt ist. Eine Antriebswelle 4 trägt einen Anker 5 und einen Kommutator 6. Sie ist mit ihrem kommutatorseitigen Ende in einem Lagerdeckel 7 und mit ihrem anderen Ende in einem Zwischenlager 8 drehbar gelagert. Lagerdeckel 7 und Zwischenlager 8 sind mit Zuganker 9 jeweils an einer Stirnseite des Gehäuses 2 in an sich bekannter Weise befestigt. An der anderen Stirnseite des Zwischenlagers 8 ist ein Antriebslager 10 in ebenfalls bekannter und nicht näher dargestellter Weise angeschraubt. Parallel zum Zwischenlager 8 ist am Antriebslager 10 unter Zwischenlage eines Dichtteils 11 ein Einrückrelais 12 mit Schrauben 13 befestigt.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. On the other end of the intermediate bearing 8, a drive bearing 10 is screwed in a known and not shown manner. In parallel to the intermediate bearing 8, an engagement relay 12 is fastened with screws 13 to the drive bearing 10 with the interposition of a sealing part 11.

Im Zwischenlager 8 ist eine erste Lagerbohrung 14 ausgebildet, in welcher ein Lager 15 eingesetzt ist, in dem die Antriebswelle 4 drehbar aufgenommen ist. Ein Ende der Antriebswelle 4 ist im Lagerdeckel 7 drehbar aufgenommen. Das durch das Lager 15 ragende andere Ende der Antriebswelle 4 ist mit einer Geradverzahnung 16 versehen und dient als treibendes Rad eines Stirnradvorgeleges. Das Stirnradvorgelege hat ein Hohlrad 17, das mit der Geradverzahnung 16 in Eingriff steht. Das Hohlrad 17 ist einteilig mit einer Lagerhülse 18 ausgebildet. Das aus Hohlrad 17 und Lagerhülse 18 bestehende Teil ist beispielsweise als Fließpreßteil ausgebildet. Es kann auch als Spritzteil aus Kunststoff ausgeführt sein. Auf der Außenseite der Lagerhülse 18 ist gleich ein Steilgewinde 19 mitausgebildet. Das Hohlrad 17 mit der Lagerhülse 18 ist auf einer Getriebewelle 20 gelagert. Ein Ende der Getriebewelle 20 ist in einem Lager 21 drehbar aufgenommen, welches in einer zweiten Lagerbohrung 22 des Zwischenlagers 8 eingesetzt ist. Das zweite Ende 23 der Getriebewelle 20 ist in einem Lager 24 eines Lagerfortsatzes 25 des Antriebslagers 10 drehbar aufgenommen.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.

Auf dem Steilgewinde 19 der auf der Getriebewelle 20 sitzenden Lagerhülse 18 ist ein Mitnehmer 26 verschraubbar angeordnet. Der Mitnehmer 26 ist einstückig über einen Flansch 27 mit einem äußeren Laufring 28 eines Freilaufs 29 verbunden. Ein innerer Laufring 30 des Freilaufs 29 ist als Fortsatz eines Andrehritzels 31 ausgebildet, welches dreh- und verschiebbar auf der Getriebewelle 20 sitzt. Die Laufringe 28 und 30 schließen Räume ein, in denen Rollen 32 und nicht näher dargestellte zugehörige Federn untergebracht sind. Eine Deckscheibe 33 schließt die Räume ab. An ihrer äußeren Seite liegt eine Ausgleichsscheibe 34 an. Ein auf dem äußeren Laufring 28 befestigtes Verschlußteil 35 greift über die Ausgleichsscheibe 34 und hält die Freilaufteile 28, 30, 32, 33, 34 zusammen.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.

Nahe dem Lagerfortsatz 25 ist auf der Getriebewelle 20 ein Anschlagring 36 angeordnet. Zwischen dem Andrehritzel 31 und dem Anschlagring 36 ragt ein Zahnkranz 37 einer anzudrehenden Brennkraftmaschine durch eine maulartige Öffnung 38 des Antriebslagers 10 in den Einspurbereich des Andrehritzels 31.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.

Auf dem Mitnehmer 26 sitzt eine Einspurfeder 39 zwischen dem Flansch 27 und einer ebenfalls auf dem Mitnehmer 26 angeordneten ersten Anschlaghülse 40. Eine Mitnehmerscheibe 41 ist zwischen der ersten Anschlaghülse 40 und einer zweiten Anschlaghülse 42 axial und radial bewegbar angeordnet. Die zweite Anschlaghülse 42 liegt an einem Anschlagring 43 des Mitnehmers 26 an. Die Mitnehmerscheibe 41 ist an einem gabelförmigen Einrückhebel 44 angelenkt.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.

Der Einrückhebel 44 ist an einem Lagerteil 45 schwenkbar gelagert. Das Lagerteil 45 ist in Ausnehmungen des Antriebslagers 10 eingesetzt.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.

Das freie Ende 46 des Einrückhebels 44 ragt in einen Schlitz 47 einer Schaltstange 48 eines nicht näher dargestellten Magnetankers des Einrückrelais 12. Zwischen dem Ende 46 des Einrückhebels 44 und dem Einrückrelais 12 ist eine Rückstellfeder 49 angeordnet, deren eines Ende an einem Federlager 50 anliegt. Das Federlager 50 ist streifenförmig ausgebildet, erstreckt sich ebenfalls durch den Schlitz 47 der Schaltstange 48 und seine rechtwinklig abgebogenen Enden greifen über den anliegenden Endabschnitt der Rückstellfeder 49.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.

Eine Abdeckkappe 51 ist im wesentlichen napfförmig ausgebildet. Sie umgibt das in das Antriebslager 10 ragende Hohlrad 17, wobei sich die Lagerhülse 18 samt Getriebewelle 20 durch ein Loch im Boden der Abdeckkappe 51 erstreckt. Der flanschartige Rand 52 der Abdeckkappe 51 ist zwischen einem vorspringenden Auflagerand 53 des Zwischenlagers 8 einerseits und einer Innenschulter 54 an der Stirnseite 54 des Antriebslagers 10 andererseits eingesetzt. Dadurch ist der Andrehmotor 1 mit dem Stirnradvorgelege 16, 17 Schmutz- und feuchtigkeitsdicht von dem über die maulartige Öffnung 38 offenen Antriebslager 10 abgeschlossen. Außerdem kann beim Andrehvorgang durch Drehen des Stirnradvorgeleges 16, 17 das in das Vorgelege 16, 17 eingebrachte Schmiermittel nicht mehr herausgeschleudert werden oder auslaufen.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. In addition, during the starting process by rotating the spur gear 16, 17, the lubricant introduced into the gear 16, 17 can no longer be thrown out or run out.

Claims (4)

1. Starting device for internal-combustion engines, with a starter motor, the drive shaft (4) of which is part of a spur gear with a hollow wheel (17) which is mounted on a transmission shaft and which is connected operatively to a starting pinion (31), arranged rotatably and longitudinally moveably on the transmission shaft (20), via a free-wheel and an engagement means arranged moveably on a coarse-thread portion, characterised in that the hollow wheel (17) is made in one piece with a sleeve (18) which carries the coarse-thread (19) and on which the engagement means (26) rests.
2. Starting device according to claim 1, characterised in that the hollow wheel (17) connected in one piece to the sleeve (18) is designed as an extrusion moulding.
i3. Starting device according to claim 1, characterised in that the hollow wheel (17) connected in one piece to the sleeve (18) is designed as a plastic injection moulding.
4. Starting device according to one of claims 1 to 3, characterised in that a cover cap (51) resting against the intermediate bearing (8) surrounds the hollow wheel (17) so as to seal it off.
EP81903113A 1981-01-14 1981-10-31 Starter for combustion engine Expired EP0069125B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3100869A DE3100869A1 (en) 1981-01-14 1981-01-14 "TURNING DEVICE FOR INTERNAL COMBUSTION ENGINES"
DE3100869 1981-01-14

Publications (2)

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

Family

ID=6122566

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81903113A Expired EP0069125B1 (en) 1981-01-14 1981-10-31 Starter for combustion engine

Country Status (7)

Country Link
US (1) US4495825A (en)
EP (1) EP0069125B1 (en)
JP (1) JPH0119067B2 (en)
DE (2) DE3100869A1 (en)
ES (1) ES508688A0 (en)
IT (1) IT1149402B (en)
WO (1) WO1982002419A1 (en)

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DE3468486D1 (en) * 1983-05-31 1988-02-11 Hitachi Ltd Reduction starter
JPS6078981U (en) * 1983-11-07 1985-06-01 三菱電機株式会社 coaxial starter
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 (en) * 1984-05-18 1985-12-06 三菱電機株式会社 gear
US5295404A (en) * 1992-12-04 1994-03-22 General Motors Corporation Shift lever mechanism for engine starting apparatus
JP3220596B2 (en) * 1994-07-28 2001-10-22 株式会社日立製作所 Starter
FR2725758B1 (en) * 1994-10-18 1997-01-10 Valeo Equip Electr Moteur ELECTRIC STARTER FOR A MOTOR VEHICLE COMBUSTION ENGINE

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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 (en) * 1961-06-29 1963-07-25 Bosch Gmbh Robert Push screw drive for starting motors of internal combustion engines
FR1311876A (en) * 1961-09-29 1962-12-14 Espanola Magnetos Fab Starter motor for combustion engine or the like
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
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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 (en) * 1979-12-24 1985-11-27 沢藤電機株式会社 engine starting device

Also Published As

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

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