EP2588744B1 - Starting device - Google Patents

Starting device Download PDF

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Publication number
EP2588744B1
EP2588744B1 EP11727991.9A EP11727991A EP2588744B1 EP 2588744 B1 EP2588744 B1 EP 2588744B1 EP 11727991 A EP11727991 A EP 11727991A EP 2588744 B1 EP2588744 B1 EP 2588744B1
Authority
EP
European Patent Office
Prior art keywords
hollow shaft
closure
starting device
groove
shaft
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.)
Not-in-force
Application number
EP11727991.9A
Other languages
German (de)
French (fr)
Other versions
EP2588744A2 (en
Inventor
Stephan Kaske
Martin Moeller
Bernhard Bauer
Walter Gerschwitz
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.)
SEG Automotive Germany GmbH
Original Assignee
SEG Automotive Germany 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 SEG Automotive Germany GmbH filed Critical SEG Automotive Germany GmbH
Publication of EP2588744A2 publication Critical patent/EP2588744A2/en
Application granted granted Critical
Publication of EP2588744B1 publication Critical patent/EP2588744B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F02N15/062—Starter drives
    • F02N15/065—Starter drives with blocking means
    • 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
    • F02N11/00—Starting of engines by means of electric motors
    • 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
    • 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
    • F02N2250/00—Problems related to engine starting or engine's starting apparatus
    • F02N2250/08—Lubrication of starters; Sealing means for starters

Definitions

  • the pinion is made in one piece with a hollow shaft.
  • the hollow shaft has an open end.
  • the end of the hollow shaft which is open per se, is closed by a cover.
  • a hollow shaft is closed by the closure and on the other hand the hollow shaft is overlapped by a collar integrally formed on the closure, whereby a locking ring arranged on an outer circumference of the drive shaft is secured against expansion.
  • a particularly simple fastening of the closure is achieved by fastening by means of a form fit or force fit.
  • Suitable geometries for a form fit have been found to be one or more grooves, which are simple, for example, as pitch-free circumferential groove or right- or left-handed thread or pitch-free multiple grooving has been proven.
  • a right-handed or left-handed thread is used for self-locking the lock.
  • a single circumferential groove has proven to be particularly durable as a closure for metallic lids. In this case, for example, a metallic bowl is placed in the opening and the cylindrical side wall is bulged all around at a depth that is matched to the groove, and is thereby rolled.
  • a cover can also be snapped into a circumferential groove by means of a snap connection.
  • a slope-free multiple grooving is particularly advantageous in combination with a plastic cover, since then the material of the cover digs into the grooves and a good hold is made possible.
  • Embodiment of the invention Figure 1 which is not part of the invention, is a section of a free end 10 of a hollow shaft 13 of a freely ejecting starting device 16, see Figure 4 , shown.
  • the hollow shaft 13 - sometimes also referred to as an output shaft - is slidably seated on a drive shaft 19 and has an opening 20.
  • the drive shaft 19 has a shoulder 25 toward its end 22.
  • a stop ring 31 is fastened, which is secured by means of a locking ring 34 and a groove 37 in the pin 28.
  • the cover or closure 53 has a tubular area 56 which is at least largely closed by a plate section 59.
  • a thread 63 corresponding to the groove 50 (thread) having an incline.
  • the plate section 59 projects beyond the tube-like area 56 at its outer area and thus forms a stop 66 at the end 47.
  • the groove 50 and the threads 63 form a form fit 69.
  • the starting device 16 thus has a drive shaft 19 and a hollow shaft 13, which is at least displaceable on the drive shaft 19 and has an end opening 20, with a closure 53 which closes the end opening 20, the closure 53 being fastened in the hollow shaft 13.
  • the closure 53 is fastened in the hollow shaft 13 by means of a positive connection 69.
  • the hollow shaft 13 thus has an inner contour 72 with at least one groove 50, the closure 53 engaging to hold the at least one groove 50.
  • a slope 75 is machined into the free end 10 of the hollow shaft 13.
  • the closure 53 is designed here as a metallic cup. For fastening, this is placed in the free end 10 of the hollow shaft 13 and a cylindrical side wall 78 is bulged all around at a depth matched to the groove 75 and is thereby rolled.
  • the cylindrical side wall 78 as a pipe socket-like region 81 of the closure 53 thereby has a bead 84 with which the closure 53 engages in the groove 75.
  • FIG 3 detects the closure 53 based on the example Figure 1 an integrally formed collar 87, which starts from the plate section 59 and, after a circumferential bend 90, has, for example, a cylindrical section 93.
  • the collar 87 engages over the end 10 of the hollow shaft 13 and likewise secures a securing ring 97 arranged on an outer circumference 96 of the drive shaft 19 against expansion.
  • the locking ring 97 is used here directly as a stop for a pinion 95, which is mounted here axially displaceably on the hollow shaft 13.
  • a ring between the pinion 95 and the locking ring 97 serves as a stop. There the ring secures the circlip 97 against expansion.
  • closures 53 are inserted into the opening 20 in a purely frictional manner.
  • Figure 4 shows a symbolic representation of a starting device 16 with freely ejecting pinion 95.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Closures For Containers (AREA)
  • Clamps And Clips (AREA)
  • Toilet Supplies (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)
  • Sealing Devices (AREA)
  • Automatic Assembly (AREA)
  • Lock And Its Accessories (AREA)
  • Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)

Description

Stand der TechnikState of the art

Aus der deutschen Offenlegungsschrift DE 41 277 42 A1 ist eine Startvorrichtung mit einem frei auszustoßenden Ritzel bekannt. Das Ritzel ist einstückig mit einer Hohlwelle ausgeführt. Die Hohlwelle hat ein offenes Ende. Um einen Eintrag von Schmutz in die Mechanik zwischen Hohlwelle und Antriebswelle zu vermeiden, ist das an sich offene Ende der Hohlwelle durch einen Deckel verschlossen.From the German published application DE 41 277 42 A1 a starting device with a freely ejectable pinion is known. The pinion is made in one piece with a hollow shaft. The hollow shaft has an open end. In order to prevent dirt from entering the mechanics between the hollow shaft and the drive shaft, the end of the hollow shaft, which is open per se, is closed by a cover.

Aus dem Dokument JP09-209884 ist eine Startvorrichtung bekannt, deren Antriebswelle ein verschlossenes Ende aufweist. Gleiches gilt für das Dokument EP 0 628 718 A1 . Der dortige Verschluss weist zudem einen kleinen Kragen auf.
Aus dem Dokument DE102008000883 A1 ist ein Sicherungsring auf der Hohlwelle bekannt, der gegen unzulässiges Aufweiten gesichert ist.From the document JP09-209884 a starting device is known whose drive shaft has a closed end. The same applies to the document EP 0 628 718 A1 . The closure there also has a small collar.
From the document DE102008000883 A1 is known a locking ring on the hollow shaft, which is secured against unauthorized expansion.

Offenbarung der ErfindungDisclosure of the invention

Durch die gemäß Anspruch 1 ausgeführte Erfindung wird erreicht, dass durch den Verschluss einerseits eine Hohlwelle verschlossen ist und andererseits durch einen am Verschluss einstückig angeformten Kragen die Hohlwelle übergriffen wird, wodurch ein an einem Außenumfang der Antriebswelle angeordneter Sicherungsring gegen Aufweiten gesichert wird. Es lassen sich mit dem Verschluss zwei Aufgaben gleichzeitig und kostengünstig lösen.It is achieved by the invention according to claim 1 that on the one hand a hollow shaft is closed by the closure and on the other hand the hollow shaft is overlapped by a collar integrally formed on the closure, whereby a locking ring arranged on an outer circumference of the drive shaft is secured against expansion. With the closure, two tasks can be solved simultaneously and inexpensively.

Eine besonders einfache Befestigung des Verschlusses wird durch eine Befestigung mittels Formschluss oder Kraftschluss erreicht. Als geeignete Geometrien für einen Formschluss haben sich eine oder mehrere Nuten erwiesen, die beispielsweise als steigungsfreie, einfach umlaufende Nut oder rechts- bzw. linksdrehende Gewinde oder steigungsfreie Mehrfachrillung erwiesen. Je nach Drehrichtung des Startermotors bzw. der Brennkraftmaschine dient ein rechts- bzw. linksdrehendes Gewinde der Selbstsicherung des Verschlusses. Eine einfach umlaufende Nut hat sich besonders bei metallischen Deckeln als Verschluss als haltbar erwiesen. In diesem Fall wird beispielsweise ein metallischer Napf in die Öffnung gesetzt und die zylindrische Seitenwand in einer auf die Nut abgestimmten Tiefe umlaufend ausgebeult und dadurch eingewalzt. Alternativ kann auch ein Deckel mittels einer Schnappverbindung in eine umlaufende Nut eingeschnappt werden. Eine steigungsfreie Mehrfachrillung ist besonders in Kombination mit einem Kunststoffdeckel geünstig, da sich dann das Material des Deckels in die Rillen eingräbt und ein guter Halt ermöglicht wird.A particularly simple fastening of the closure is achieved by fastening by means of a form fit or force fit. Suitable geometries for a form fit have been found to be one or more grooves, which are simple, for example, as pitch-free circumferential groove or right- or left-handed thread or pitch-free multiple grooving has been proven. Depending on the direction of rotation of the starter motor or the internal combustion engine, a right-handed or left-handed thread is used for self-locking the lock. A single circumferential groove has proven to be particularly durable as a closure for metallic lids. In this case, for example, a metallic bowl is placed in the opening and the cylindrical side wall is bulged all around at a depth that is matched to the groove, and is thereby rolled. Alternatively, a cover can also be snapped into a circumferential groove by means of a snap connection. A slope-free multiple grooving is particularly advantageous in combination with a plastic cover, since then the material of the cover digs into the grooves and a good hold is made possible.

Kurze Beschreibungen der ZeichnungenBrief descriptions of the drawings

Die Erfindung wird im Folgenden beispielhaft anhand der Figuren näher erläutert:
Es zeigen:

  • Figur 1 beziehungsweise Figur 2 zeigt ein vom Erfindungsgegenstand abweichendes Beispiel eines Verschlusses.
  • Figur 3 zeigt ein Ausführungsbeispiel eines Verschlusses.
  • Figur 4 in symbolischer Darstellung eine Startvorrichtung mit frei ausstoßendem Ritzel.
  • Gleiche Bezugszahlen bezeichnen gleiche Teile.
The invention is explained in more detail below by way of example with reference to the figures:
Show it:
  • Figure 1 respectively Figure 2 shows an example of a closure which differs from the subject matter of the invention.
  • Figure 3 shows an embodiment of a closure.
  • Figure 4 in a symbolic representation a starter with freely ejecting pinion.
  • The same reference numbers designate the same parts.

Ausführungsbeispiel der Erfindung In Figur 1, die nicht Teil der Erfindung ist, ist ausschnittweise ein freies Ende 10 einer Hohlwelle 13 einer frei ausstoßenden Startvorrichtung 16, siehe Figur 4, dargestellt. Die Hohlwelle 13 - manchmal auch als Abtriebswelle bezeichnet - sitzt verschiebbar auf einer Antriebswelle 19 und weist eine Öffnung 20 auf. Die Antriebswelle 19 weist zu ihrem Ende 22 hin einen Absatz 25 auf. Auf dem daran anschließenden durchmesserkleineren Zapfen 28 ist ein Anschlagring 31 befestigt, der mittels eines Sicherungsrings 34 und einer Nut 37 im Zapfen 28 gesichert ist. Auf dem Außenumfang 40 des Anschlagrings 31 gleitet die Hohlwelle 13 mit einem Abschnitt ihres Innenumfangs 43. Vom Ende 47 der Hohlwelle 13 her erstreckt sich eine umlaufende, eine Steigung aufweisende Nut 50 (Gewinde), in die ein Deckel als Verschluss 53 eingesetzt bzw. eingeschraubt ist.Embodiment of the invention Figure 1 , which is not part of the invention, is a section of a free end 10 of a hollow shaft 13 of a freely ejecting starting device 16, see Figure 4 , shown. The hollow shaft 13 - sometimes also referred to as an output shaft - is slidably seated on a drive shaft 19 and has an opening 20. The drive shaft 19 has a shoulder 25 toward its end 22. On the adjoining smaller diameter pin 28, a stop ring 31 is fastened, which is secured by means of a locking ring 34 and a groove 37 in the pin 28. On the outer circumference 40 of the stop ring 31, the hollow shaft 13 slides with a portion of its inner circumference 43. From the end 47 of the hollow shaft 13, a circumferential, inclined groove 50 (thread) extends into which a cover is inserted or screwed as a closure 53 is.

Der Deckel bzw. Verschluss 53 hat einen rohrartigen Bereich 56, der durch einen Plattenabschnitt 59 zumindest weitgehend verschlossen ist. Am Außenumfang des rohrartigen Bereichs 56 befindet sich ein mit der eine Steigung aufweisenden Nut 50 (Gewinde) korrespondierendes Gewinde 63. Der Plattenabschnitt 59 ragt an seinen Außenbereich über den rohrartigen Bereich 56 hinaus und bildet so einen Anschlag 66 am Ende 47. Die Nut 50 und das Gewinde 63 bilden einen Formschluss 69.The cover or closure 53 has a tubular area 56 which is at least largely closed by a plate section 59. On the outer circumference of the tube-like area 56 there is a thread 63 corresponding to the groove 50 (thread) having an incline. The plate section 59 projects beyond the tube-like area 56 at its outer area and thus forms a stop 66 at the end 47. The groove 50 and the threads 63 form a form fit 69.

Die Startvorrichtung 16 hat somit eine Antriebswelle 19 und eine auf der Antriebswelle 19 zumindest verschiebbare Hohlwelle 13, die eine stirnseitige Öffnung 20 aufweist, mit einem Verschluss 53, der die stirnseitige Öffnung 20 verschließt, wobei der Verschluss 53 in der Hohlwelle 13 befestigt ist.The starting device 16 thus has a drive shaft 19 and a hollow shaft 13, which is at least displaceable on the drive shaft 19 and has an end opening 20, with a closure 53 which closes the end opening 20, the closure 53 being fastened in the hollow shaft 13.

Der Verschluss 53 ist mittels eines Formschlusses 69 in der Hohlwelle 13 befestigt ist. Die Hohlwelle 13 weist somit eine Innenkontur 72 mit mindestens einer Nut 50 aufweist, wobei der Verschluss 53 zum Halten in die mindestens eine Nut 50 eingreift.The closure 53 is fastened in the hollow shaft 13 by means of a positive connection 69. The hollow shaft 13 thus has an inner contour 72 with at least one groove 50, the closure 53 engaging to hold the at least one groove 50.

In Figur 2, die nicht Teil der Erfindung ist, ist in das freie Ende 10 der Hohlwelle 13 eine steigungslose Nut 75 eingearbeitet. Der Verschluss 53 ist hier als metallischer Napf ausgebildet. Zur Befestigung wird dieser in das freie Ende 10 der Hohlwelle 13 gesetzt und eine zylindrische Seitenwand 78 in einer auf die Nut 75 abgestimmten Tiefe umlaufend ausgebeult und dadurch eingewalzt. Die zylindrische Seitenwand 78 als rohrstutzenartiger Bereich 81 des Verschlusses 53 weist dadurch einen Wulst 84 auf, mit dem der Verschluss 53 in die Nut 75 eingreift.In Figure 2 , which is not part of the invention, a slope 75 is machined into the free end 10 of the hollow shaft 13. The closure 53 is designed here as a metallic cup. For fastening, this is placed in the free end 10 of the hollow shaft 13 and a cylindrical side wall 78 is bulged all around at a depth matched to the groove 75 and is thereby rolled. The cylindrical side wall 78 as a pipe socket-like region 81 of the closure 53 thereby has a bead 84 with which the closure 53 engages in the groove 75.

In Figur 3 weist der Verschluss 53 ausgehend von dem Beispiel nach Figur 1 einen einstückig angeformten Kragen 87 auf, der von dem Plattenabschnitt 59 ausgeht und nach einer umlaufenden Biegung 90 in einen beispielsweise zylindrischen Abschnitt 93 aufweist. Der Kragen 87 übergreift das Ende 10 der Hohlwelle 13 und sichert gleichfalls einen an einem Außenumfang 96 der Antriebswelle 19 angeordneten Sicherungsring 97 gegen Aufweiten. Der Sicherungsring 97 dient hier unmittelbar als Anschlag für ein Ritzel 95, das hier axial verschieblich auf der Hohlwelle 13 gelagert ist. In den anderen Beispielen dient ein Ring zwischen dem Ritzel 95 und dem Sicherungsring 97 als Anschlag. Dort sichert der Ring den Sicherungsring 97 gegen Aufweiten.In Figure 3 detects the closure 53 based on the example Figure 1 an integrally formed collar 87, which starts from the plate section 59 and, after a circumferential bend 90, has, for example, a cylindrical section 93. The collar 87 engages over the end 10 of the hollow shaft 13 and likewise secures a securing ring 97 arranged on an outer circumference 96 of the drive shaft 19 against expansion. The locking ring 97 is used here directly as a stop for a pinion 95, which is mounted here axially displaceably on the hollow shaft 13. In the other examples, a ring between the pinion 95 and the locking ring 97 serves as a stop. There the ring secures the circlip 97 against expansion.

Es kann bei dem Beispiel nach Figur 1 und bei dem Ausführungsbeispiel nach Figur 3 auch vorgesehen sein, dass die Verschlüsse 53 rein kraftschlüssig in die Öffnung 20 eingesetzt sind.It can follow the example Figure 1 and in the embodiment according to Figure 3 it can also be provided that the closures 53 are inserted into the opening 20 in a purely frictional manner.

Figur 4 zeigt in symbolischer Darstellung eine Startvorrichtung 16 mit frei ausstoßendem Ritzel 95. Figure 4 shows a symbolic representation of a starting device 16 with freely ejecting pinion 95.

Claims (4)

  1. A freely ejecting starting device (16) having a drive shaft (19) and a hollow shaft (13) which is at least displaceable on the drive shaft (19) and has a front opening (20), a pinion (95) being mounted axially displaceably on the hollow shaft (13), characterized in that a closure (53) closes the front opening (20), the closure (53) being fastened in the hollow shaft (13) and from which a collar (87) extends in one piece, the closure (53) engaging over one end (10) of the hollow shaft (13) and likewise securing a circlip (97) arranged on an outer circumference (96) of the hollow shaft (13) against expansion.
  2. The starting device (16) according to claim 1, characterized in that the closure (53) is fastened in the hollow shaft (13) by means of a positive connection (69) or frictional connection.
  3. The starting device (16) according to claim 2, characterized in that, in the case of a fastening by means of positive locking (69), the hollow shaft (13) has an inner contour (72) with at least one groove (50), the closure (53) engaging in the at least one groove (50) for holding.
  4. The starting device (16) according to claim 3, characterized in that the groove (50) has a gradient or no gradient.
EP11727991.9A 2010-06-30 2011-06-29 Starting device Not-in-force EP2588744B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010030716.5A DE102010030716B4 (en) 2010-06-30 2010-06-30 starter
PCT/EP2011/060866 WO2012001022A2 (en) 2010-06-30 2011-06-29 Starting device

Publications (2)

Publication Number Publication Date
EP2588744A2 EP2588744A2 (en) 2013-05-08
EP2588744B1 true EP2588744B1 (en) 2020-04-01

Family

ID=44310922

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11727991.9A Not-in-force EP2588744B1 (en) 2010-06-30 2011-06-29 Starting device

Country Status (5)

Country Link
EP (1) EP2588744B1 (en)
CN (1) CN103109076B (en)
DE (1) DE102010030716B4 (en)
HU (1) HUE051129T2 (en)
WO (1) WO2012001022A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2799707B1 (en) * 2013-04-30 2021-12-01 SEG Automotive Germany GmbH Method for mounting an electrical machine

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4127742A1 (en) 1991-08-22 1993-02-25 Bosch Gmbh Robert FREE SHOOTING STARTER FOR INTERNAL COMBUSTION ENGINES
DE9307931U1 (en) * 1993-05-26 1993-07-22 Ina Waelzlager Schaeffler Kg, 91074 Herzogenaurach, De
FR2706537B1 (en) * 1993-06-09 1995-07-28 Valeo Equip Electr Moteur Starter launcher sealing device for internal combustion engine and method for implementing such a device.
JPH09209884A (en) * 1996-02-01 1997-08-12 Hitachi Ltd Dustproof structure of starter
DE19700889B4 (en) * 1997-01-14 2006-11-23 Peter Kroll Protective cap for the ends of pipes or rods
JP4453227B2 (en) * 2000-10-20 2010-04-21 株式会社デンソー Starter
DE102008000883A1 (en) * 2008-03-31 2009-10-01 Robert Bosch Gmbh starter
DE102008040106A1 (en) * 2008-07-03 2010-01-07 Robert Bosch Gmbh Starter for an internal combustion engine

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
DE102010030716B4 (en) 2015-09-17
CN103109076B (en) 2016-05-11
DE102010030716A1 (en) 2012-01-05
CN103109076A (en) 2013-05-15
EP2588744A2 (en) 2013-05-08
HUE051129T2 (en) 2021-03-01
WO2012001022A3 (en) 2012-02-23
WO2012001022A2 (en) 2012-01-05

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