WO2017102501A1 - Starting device for internal combustion engines - Google Patents

Starting device for internal combustion engines Download PDF

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Publication number
WO2017102501A1
WO2017102501A1 PCT/EP2016/080084 EP2016080084W WO2017102501A1 WO 2017102501 A1 WO2017102501 A1 WO 2017102501A1 EP 2016080084 W EP2016080084 W EP 2016080084W WO 2017102501 A1 WO2017102501 A1 WO 2017102501A1
Authority
WO
WIPO (PCT)
Prior art keywords
shield
lever
biasing spring
starting device
spring element
Prior art date
Application number
PCT/EP2016/080084
Other languages
German (de)
French (fr)
Inventor
Stephan Kaske
Javier Bores
Michael Froehlich-Schlapp
Susanne BENTZIN
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
Priority to CN201680073435.6A priority Critical patent/CN108474342B/en
Publication of WO2017102501A1 publication Critical patent/WO2017102501A1/en

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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
    • F02N15/067—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 the starter comprising an electro-magnetically actuated lever

Definitions

  • the lever assembly has a lever part which engages with one end to an output shaft, and a biasing spring element which is coupled to the armature of a Vorspuraktuators.
  • the starting device for internal combustion engines with the features of claim 1 has the advantage that the arrangement of the biasing spring element between the lever member and a shield, which can no longer rub the biasing member directly on the bearing block. It is thereby possible, on the one hand, to produce the bearing block from an unchanged material and, on the other hand, to adjust the frictional situation between the preloading element and the point at which the preload element is bearing-bearing-side, by adapted friction parameters. In particular, it is thereby possible to select the material appropriately.
  • the shield is arranged between a housing part of the biasing spring element and the region of the biasing spring element. This preferably prevents a concern of the biasing spring element on the housing part of the biasing spring element.
  • the housing part of the biasing spring element can be designed, for example, as a so-called bearing block and can therefore represent a part of the bearing point on which the lever assembly is rotatably mounted.
  • a sliding friction coefficient between the material of the region of the biasing spring element and the housing part of the biasing spring element is greater than a sliding friction coefficient between the
  • Material of the area of the biasing spring element and the shield This would be, for example, given that the material of the region of the biasing spring element would be made of spring steel, the housing part of the biasing spring element of a polymeric plastic, such as polyamide or an elastomer and the shield of a steel material.
  • the shield is preferably attached to the lever part.
  • the shield is not attached to the lever part, but on the housing part of the biasing spring element. In the latter case, this sign can be practically a
  • the shield preferably has at least one retaining arm, particularly preferably two retaining arms, which engage in a holding contour, so that the shield can be held stationary.
  • a retaining contour may for example be a contour on the lever part.
  • Such a contour or holding contour is particularly preferred in the form of a latching nose or a retaining slot.
  • the lever part as a plastic molded part is preferably made of a polymeric plastic, such as polyamide. This lever part engages with one end to an output shaft.
  • the output shaft is preferably a drive pinion with an engagement contour for the lever assembly or for example a drive pinion with a freewheel with an engagement contour for the lever assembly.
  • the lever assembly preferably has the components that are involved in the implementation of an armature movement of the Vorspuraktuators in a sliding movement of the drive pinion.
  • the shield can be made not only of steel, but alternatively of aluminum, brass, bronze or particularly low-friction polymers.
  • FIG. 1 shows a sectional view of the drive device according to the invention
  • Figure 4 is an exploded view of the individual parts of the lever assembly of the lever part, biasing spring element and shield.
  • the illustration according to FIG. 1 shows a longitudinal section through a starting device 10 for an internal combustion engine.
  • the starting device 10 has, for example, a starter motor 13 and a Vorspuraktuator 16, which is formed in the example as a relay with a solenoid 17.
  • the starter motor 13 and the electric Vorspuraktuator 16 are attached to a common drive end plate 19.
  • the starter motor 13 functions to drive a starting pinion 22 when it is meshed with a ring gear 25 of an internal combustion engine not shown in FIG.
  • the starter motor 13 has the typical features:
  • a pole tube carries at its inner circumference stator poles 31 which surround an armature 37 (rotor).
  • a drive shaft 44 of the armature 37 carries at its end directed toward the starting pinion 22 a sun gear 80 which drives three planet gears 86.
  • the three planetary gears 86 are seated on stub axles 92 which are non-rotatably connected to a driver 94 of a freewheel 96.
  • the planet gears 86 roll on an inner circumference of a ring gear 99.
  • a roller collar 102 of the freewheel 96 is entrained by means of clamping body 105.
  • the roller collar is here in this embodiment part of an output shaft 108 which is coupled via a helical coupling 111 with the starter pinion 22.
  • a so-called intermediate bearing 114 is arranged, which centrally carries a bearing element 115 - here designed as a plain bearing.
  • the output shaft 108 is mounted in the intermediate bearing 114.
  • a support member 118 is connected.
  • This support member preferably has the task to supplement the opening in the drive end plate 19, which faces the Vorspuraktuator 16.
  • the opening 119 receives a stub 122 of the relay housing. A not here or only indirectly recognizable extended opening of the opening 119 in the direction of the pole tube 28 is at least partially closed by the support member 118.
  • a directed towards the terminals of Vorspuraktuators 19 end terminates in a same plane as a befindaji at the upper end of the drive end plate 19 area.
  • the support member 118 and the drive end plate 19 offer at this point the housing of the Vorspuraktuators 16 a flat, substantially round, opening and simultaneously supporting plane.
  • a lever assembly 125 which has on the one hand a lever part 128 and on the other hand, a biasing spring element 131.
  • the lever assembly 125 is here coupled to the lever member 128 at a location 134 directly to the starter pinion 22.
  • the biasing spring member 131 is rotatably coupled to the lever member 128.
  • the spring or biasing spring element 131 essentially comprises two legs 132, 133 (leg spring), with a first leg 132 extending between an axis of rotation of the lever assembly and a location 137 at which the lever assembly 125 is coupled to the armature 17.
  • the second leg 133 of the biasing spring element 131 extends between the axis of rotation 140 of the lever assembly and the point at which the lever member 128 engages the output shaft 108, Figure 2.
  • Figure 2 shows a side view of the bearing 140th
  • a spiral part 143 which consists of two oppositely wound spirals 144 and 145 of the bias spring member 131, Figure 3.
  • the two spirals 144 and 145 are clipped into a cavity of the lever member so that the biasing spring member 131 and the lever member 128th form a preassembled lever assembly 125.
  • a portion 148 of the bias spring member 131 is disposed between the lever member 128 and a shield 151.
  • a starting device 10 for internal combustion engines which has a Vorspuraktuator 16 which has an axially displaceable armature 17, and which has a starter pinion 22 which is axially displaceable. Furthermore, this starting device 10 has a lever assembly 125, which is coupled at a location 137 with the armature 17. At least one other point 134, the lever assembly is at least indirectly coupled to the starter pinion 22.
  • the starting device also has a bearing point 140, on which the lever assembly 125 is rotatably mounted.
  • a biasing spring member 131 is part of the lever assembly 125.
  • a biasing spring member which is part of the lever assembly 125 and to which the armature 17 is coupled, is also present.
  • the lever member 128 engages an output shaft 108 at one end.
  • a portion 148 of the bias spring member 131 is disposed between the lever member 128 and a shield 151.
  • the shield 151 is disposed between the support member 118 and the portion 148 of the bias spring member 131.
  • the support member 118 may preferably be designed as a bearing block, which indirectly or directly the lever assembly 125 rotatably supports. With regard to the material properties of the elements involved, it is provided that a coefficient of sliding friction between the material of the region 148 of the biasing spring element 131 and the support element 118 of the biasing spring element 131 is greater than a sliding friction coefficient between the material of the region 148 of the biasing spring element 131 and the shield 151.
  • FIG. 3 shows a cross section along the line III-III as shown in FIG. Good to see the two hooks 160, 161, over which the two support arms 168 and 170 overlap.
  • the shield 151 can be seen in cross section. From this shield 151 go at one end 163 and at the other end 166 depending on a support arm 168 and 170 from. These retaining arms 168 and 170 each have a hole on 173 and 176, which are pushed over the two hooks 160, 161. For simplified insertion or over the hooks 160, 161 push the two support arms 173 and 176 are provided with tapered ends 178 and 180.
  • the holding arms 168 and 170 receive between them the two spiral parts 144 and 145.
  • the area 148 is received between the two holding arms 168 and 170.
  • the shield 151 is thus attached to the lever part 128.
  • the shield 151 engages with the at least one holding arm 168, 170 in a holding contour 183 - represented by the two hooks 160, 161 - on the lever part 128.
  • FIG 4 is an exploded view showing the lever member 128, the biasing spring member 131 and the shield 151.
  • the shield 151 is made in one piece with the holding arms 168, 170.
  • This shield member 151 with the holding arms 168 and 170 is made of sheet metal.
  • the shield 151 has here substantially the profile of a half approximately annular or circular pipe, from the bevels 186 and 187 go out at the ends thereof. These chamfers serve to surround the spirals 144, 145 so that no edge rubs against the spirals.
  • the shield may alternatively be attached to the lever member 128 and the lever assembly 125 by additional parts such as screws or bolts. Furthermore, the shield 151 may also be secured by slot-like geometries in the lever portion 128, wherein rectangular portions, which with the shield part and shield 151 are connected, are inserted into these slot-like geometries.

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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)

Abstract

Starting device (10) for internal combustion engines, having a pre-engaging actuator (16) which has an axially displaceable armature (17), and a starting pinion (22) which can be displaced axially, and having a lever assembly (125) which is coupled at one point (137) to the armature (17) and at at least one other point at least indirectly to the starting pinion (22), having a bearing point (140), at which the lever assembly (125) is mounted rotatably, having a prestressing spring element (131) which is part of the lever assembly (125) and on which the armature (17) is coupled, and having a lever part (128) which engages with one end on an output shaft (108), characterized in that a region (148) of the prestressing spring element (131) is arranged between the lever part (128) and a plate (151).

Description

Beschreibung Titel  Description title
Startvorrichtung für Brennkraftmaschinen Stand der Technik  Starting device for internal combustion engines State of the art
Aus dem Dokument DE 10 2011 003 200 AI ist eine Startvorrichtung für Brennkraftmaschinen bekannt, deren Hebelbaugruppe ein Hebelteil aufweist, welches mit einem Ende an einer Abtriebswelle eingreift, und ein Vorspannfederelement aufweist, welches mit dem Anker eines Vorspuraktuators gekoppelt ist. From the document DE 10 2011 003 200 AI a starting device for internal combustion engines is known, the lever assembly has a lever part which engages with one end to an output shaft, and a biasing spring element which is coupled to the armature of a Vorspuraktuators.
Es ist aufgefallen, dass beim Betätigen des Vorspannfederelements dieses am Lagerbock reibt und dabei Lagerarbeit verrichtet und dementsprechend die an der Abtriebswelle zur Verfügung stehende Kraft für das axiale Vorspuren des Andrehritzels reduziert ist. It has been noticed that when the biasing spring element is actuated, it rubs against the bearing block and thereby carries out bearing work and, accordingly, the force available for the output shaft on the output shaft is reduced for the axial preloading of the starting pinion.
Offenbarung der Erfindung Disclosure of the invention
Die Startvorrichtung für Brennkraftmaschinen mit den Merkmalen des Anspruchs 1 hat den Vorteil, dass durch die Anordnung des Vorspannfederelements zwischen dem Hebelteil und einem Schild, das das Vorspannelement nicht mehr unmittelbar am Lagerbock reiben kann. Es ist dadurch möglich, einerseits den Lagerbock aus einem unveränderten Material herzustellen und andererseits durch angepasste Reibungsparameter die Reibungssituation zwischen dem Vorspannelement und der Stelle, an der das Vorspannelement lagerbockseitig reibt, speziell anzupassen. Insbesondere ist es dadurch möglich, das Material geeignet auszuwählen. Durch diesen Schild, der alternativ auch an einem anderen als Lagerfläche zur Verfügung stehenden Teil anliegt, wirkt dann letztlich eine geringere Reibungskraft, denn durch das Einführen des Schildes ist es möglich, die Reibungsparameter zwischen dem Vorspannfederelement und dem Schild leichter einzustellen, da der Schild ein weniger komplexes Bauteil als der Lagerbock ist. Gemäß einem weiteren Aspekt der Erfindung ist vorgesehen, dass der Schild zwischen einem Gehäuseteil des Vorspannfederelements und dem Bereich des Vorspannfederelements angeordnet ist. Dies verhindert vorzugsweise ein Anliegen des Vorspannfederelements am Gehäuseteil des Vorspannfederelements. Das Gehäuseteil des Vorspannfederelements kann dabei beispielsweise als so- genannter Lagerbock ausgeführt sein und kann demzufolge einen Teil der Lagerstelle, an welchem die Hebelbaugruppe drehbar gelagert ist, darstellen. The starting device for internal combustion engines with the features of claim 1 has the advantage that the arrangement of the biasing spring element between the lever member and a shield, which can no longer rub the biasing member directly on the bearing block. It is thereby possible, on the one hand, to produce the bearing block from an unchanged material and, on the other hand, to adjust the frictional situation between the preloading element and the point at which the preload element is bearing-bearing-side, by adapted friction parameters. In particular, it is thereby possible to select the material appropriately. By this sign, which is alternatively applied to another available as a storage area part, then ultimately affects a smaller Frictional force, because the insertion of the shield, it is possible to adjust the friction parameters between the biasing spring element and the shield easier because the shield is a less complex component than the bearing block. According to a further aspect of the invention it is provided that the shield is arranged between a housing part of the biasing spring element and the region of the biasing spring element. This preferably prevents a concern of the biasing spring element on the housing part of the biasing spring element. The housing part of the biasing spring element can be designed, for example, as a so-called bearing block and can therefore represent a part of the bearing point on which the lever assembly is rotatably mounted.
Insbesondere ist vorgesehen, dass ein Gleitreibungskoeffizient zwischen dem Material des Bereichs des Vorspannfederelements und dem Gehäuseteil des Vorspannfederelements größer ist als ein Gleitreibungskoeffizient zwischen demIn particular, it is provided that a sliding friction coefficient between the material of the region of the biasing spring element and the housing part of the biasing spring element is greater than a sliding friction coefficient between the
Material des Bereichs des Vorspannfederelements und dem Schild. Dies wäre beispielsweise dadurch gegeben, dass das Material des Bereichs des Vorspannfederelements aus Federstahl hergestellt wäre, das Gehäuseteil des Vorspannfederelements aus einem polymeren Kunststoff, wie beispielsweise Polyamid oder einem Elastomer und der Schild aus einem Stahlwerkstoff. Material of the area of the biasing spring element and the shield. This would be, for example, given that the material of the region of the biasing spring element would be made of spring steel, the housing part of the biasing spring element of a polymeric plastic, such as polyamide or an elastomer and the shield of a steel material.
Gemäß einem weiteren Aspekt der Erfindung ist vorgesehen, dass der Schild vorzugsweise am Hebelteil befestigt ist. Alternativ kann vorgesehen sein, dass der Schild nicht am Hebelteil befestigt ist, sondern an dem Gehäuseteil des Vor- spannfederelements. Im zuletzt genannten Fall kann dieser Schild praktisch eineAccording to a further aspect of the invention it is provided that the shield is preferably attached to the lever part. Alternatively it can be provided that the shield is not attached to the lever part, but on the housing part of the biasing spring element. In the latter case, this sign can be practically a
Art Beschichtung des Gehäuseteils des Vorspannfederelements sein, die beispielsweise geklebt oder an dem erwähnten Gehäuseteil des Vorspannfederelements angeklipst ist. Gemäß einem weiteren Aspekt ist vorgesehen, dass der Schild vorzugsweise mindestens einen Haltearm aufweist, besonders bevorzugt sind zwei Haltearme, der oder die in einem Haltekontur eingreifen, damit der Schild ortsfest gehalten werden kann. Eine derartige Haltekontur kann beispielsweise eine Kontur am Hebelteil sein. Besonders bevorzugt ist eine derartige Kontur bzw. Haltekontur in Gestalt einer Rastnase oder eines Halteschlitzes. Das Hebelteil als Kunststoffformteil ist bevorzugt aus einem polymeren Kunststoff, wie beispielsweise Polyamid, hergestellt. Dieses Hebelteil greift mit einem Ende an eine Abtriebswelle ein. Die Abtriebswelle ist dabei bevorzugt ein Antriebsritzel mit einer Eingriffskontur für die Hebelbaugruppe oder beispielsweise ein Antriebsritzel mit einem Freilauf mit einer Eingriffskontur für die Hebelbaugruppe. Die Hebelbaugruppe weist bevorzugt die Bauteile auf, die an der Umsetzung einer Ankerbewegung des Vorspuraktuators in eine Schiebebewegung des Antriebsritzels beteiligt sind. Be type coating the housing part of the biasing spring element, which is glued, for example, or clipped onto the aforementioned housing part of the biasing spring element. According to a further aspect, it is provided that the shield preferably has at least one retaining arm, particularly preferably two retaining arms, which engage in a holding contour, so that the shield can be held stationary. Such a retaining contour may for example be a contour on the lever part. Such a contour or holding contour is particularly preferred in the form of a latching nose or a retaining slot. The lever part as a plastic molded part is preferably made of a polymeric plastic, such as polyamide. This lever part engages with one end to an output shaft. The output shaft is preferably a drive pinion with an engagement contour for the lever assembly or for example a drive pinion with a freewheel with an engagement contour for the lever assembly. The lever assembly preferably has the components that are involved in the implementation of an armature movement of the Vorspuraktuators in a sliding movement of the drive pinion.
Der Schild kann nicht nur aus Stahl, sondern alternativ auch aus Aluminium, Messing, Bronze oder besonders reibungsarmen Polymeren hergestellt sein. The shield can be made not only of steel, but alternatively of aluminum, brass, bronze or particularly low-friction polymers.
Die Erfindung wird nachfolgend anhand der Zeichnungen beispielhaft erläutert. The invention will be explained by way of example with reference to the drawings.
Es zeigen: Show it:
Figur 1 eine Schnittansicht der erfindungsgemäßen Antriebsvorrichtung, FIG. 1 shows a sectional view of the drive device according to the invention,
Figur 2 einen Längsschnitt durch eine Hebelbaugruppe gemäß einem ersten Ausführungsbeispiel, 2 shows a longitudinal section through a lever assembly according to a first embodiment,
Figur 3 einen Querschnitt durch den Gabelhebel mit Schild, 3 shows a cross section through the fork lever with shield,
Figur 4 eine Explosionsdarstellung der Einzelteile der Hebelbaugruppe aus Hebelteil, Vorspannfederelement und Schild. Figure 4 is an exploded view of the individual parts of the lever assembly of the lever part, biasing spring element and shield.
Ausführungsvarianten variants
Der Darstellung gemäß Figur 1 ist ein Längsschnitt durch eine Startvorrichtung 10 für eine Brennkraftmaschine zu entnehmen. Die Startvorrichtung 10 weist beispielsweise einen Startermotor 13 und einen Vorspuraktuator 16 auf, der im Beispiel als Relais mit einem Hubmagneten 17 ausgebildet ist. Der Startermotor 13 und der elektrische Vorspuraktuator 16 sind an einem gemeinsamen Antriebslagerschild 19 befestigt. Der Startermotor 13 dient funktionell dazu, ein Andrehritzel 22 anzutreiben, wenn es in einen Zahnkranz 25 einer in Figur 1 nicht dargestellten Brennkraftmaschine eingespurt ist. Der Startermotor 13 weist im Übrigen die typischen Merkmale auf: The illustration according to FIG. 1 shows a longitudinal section through a starting device 10 for an internal combustion engine. The starting device 10 has, for example, a starter motor 13 and a Vorspuraktuator 16, which is formed in the example as a relay with a solenoid 17. The starter motor 13 and the electric Vorspuraktuator 16 are attached to a common drive end plate 19. The starter motor 13 functions to drive a starting pinion 22 when it is meshed with a ring gear 25 of an internal combustion engine not shown in FIG. Incidentally, the starter motor 13 has the typical features:
Ein Polrohr trägt an seinem Innenumfang Statorpole 31, die einen Anker 37 (Rotor) umgeben. Eine Antriebswelle 44 des Ankers 37 trägt an seinem zum Andrehritzel 22 gerichteten Ende ein Sonnenrad 80, welches drei Planetenräder 86 antreibt. Die drei Planetenräder 86 sitzen auf Achszapfen 92, die mit einem Mitnehmer 94 eines Freilaufs 96 drehfest verbunden sind. Die Planetenräder 86 wälzen an einem Innenumfang eines Hohlrades 99 ab. Ein Rollenbund 102 des Freilaufs 96 wird mittels Klemmkörper 105 mitgenommen. Der Rollenbund ist hier in diesem Ausführungsbeispiel Teil einer Abtriebswelle 108, die über eine Steilgewindekupplung 111 mit dem Andrehritzel 22 gekoppelt ist. Um den Freilauf 96 und das Planetengetriebe 83 ist ein sogenanntes Zwischenlager 114 angeordnet, welches zentral ein Lagerelement 115 - hier ausgeführt als Gleitlager - trägt. Mittels dieses Lagerelements 115 ist die Abtriebswelle 108 im Zwischenlager 114 gelagert. Mit dem Zwischenlager 114 ist einstückig ein Stützelement 118 verbunden. Dieses Stützelement hat bevorzugt die Aufgabe, die Öffnung im Antriebslagerschild 19 zu ergänzen, die den Vorspuraktuator 16 zugewandt ist. Die Öffnung 119 nimmt einen Stutzen 122 des Relaisgehäuses auf. Eine hier nicht bzw. nur indirekt erkennbare erweiterte Öffnung der Öffnung 119 in Richtung zum Polrohr 28 ist durch das Stützelement 118 zumindest teilweise geschlossen. Ein in Richtung der Anschlüsse des Vorspuraktuators 19 gerichtetes Ende endet in einer gleichen Ebene wie ein am oberen Ende des Antriebslagerschilds 19 befindlicher Bereich. Das Stützelement 118 und das Antriebslagerschild 19 bieten an dieser Stelle dem Gehäuse des Vorspuraktuators 16 eine ebene, im Wesentlichen runde, Öffnung und gleichzeitig Abstützebene an. Im Antriebslagerschild 19 befindet sich eine Hebelbaugruppe 125, die einerseits ein Hebelteil 128 und andererseits ein Vorspannfederelement 131 aufweist. Die Hebelbaugruppe 125 ist hier mit dem Hebelteil 128 an einer Stelle 134 direkt mit dem Andrehritzel 22 gekoppelt. Das Vorspannfederelement 131 ist mit dem Hebelteil 128 drehbar gekoppelt. Das Feder bzw. Vorspannfederelement 131 umfasst im Wesentlichen zwei Schenkel 132, 133 (Schenkelfeder), wobei sich ein erster Schenkel 132 zwischen einer Drehachse der Hebelbaugruppe und einer Stelle 137, an der die Hebelbaugruppe 125 mit dem Anker 17 gekoppelt ist, erstreckt. Der zweite Schenkel 133 des Vorspannfederelements 131 erstreckt sich zwischen der Drehachse 140 der Hebelbaugruppe und der Stelle, an der das Hebelteil 128 an der Abtriebswelle 108 eingreift, Figur 2. Figur 2 zeigt eine Seitenansicht auf die Lagerstelle 140. A pole tube carries at its inner circumference stator poles 31 which surround an armature 37 (rotor). A drive shaft 44 of the armature 37 carries at its end directed toward the starting pinion 22 a sun gear 80 which drives three planet gears 86. The three planetary gears 86 are seated on stub axles 92 which are non-rotatably connected to a driver 94 of a freewheel 96. The planet gears 86 roll on an inner circumference of a ring gear 99. A roller collar 102 of the freewheel 96 is entrained by means of clamping body 105. The roller collar is here in this embodiment part of an output shaft 108 which is coupled via a helical coupling 111 with the starter pinion 22. To the freewheel 96 and the planetary gear 83, a so-called intermediate bearing 114 is arranged, which centrally carries a bearing element 115 - here designed as a plain bearing. By means of this bearing element 115, the output shaft 108 is mounted in the intermediate bearing 114. With the intermediate bearing 114 integrally a support member 118 is connected. This support member preferably has the task to supplement the opening in the drive end plate 19, which faces the Vorspuraktuator 16. The opening 119 receives a stub 122 of the relay housing. A not here or only indirectly recognizable extended opening of the opening 119 in the direction of the pole tube 28 is at least partially closed by the support member 118. A directed towards the terminals of Vorspuraktuators 19 end terminates in a same plane as a befindlicher at the upper end of the drive end plate 19 area. The support member 118 and the drive end plate 19 offer at this point the housing of the Vorspuraktuators 16 a flat, substantially round, opening and simultaneously supporting plane. In the drive end plate 19 is a lever assembly 125, which has on the one hand a lever part 128 and on the other hand, a biasing spring element 131. The lever assembly 125 is here coupled to the lever member 128 at a location 134 directly to the starter pinion 22. The biasing spring member 131 is rotatably coupled to the lever member 128. The spring or biasing spring element 131 essentially comprises two legs 132, 133 (leg spring), with a first leg 132 extending between an axis of rotation of the lever assembly and a location 137 at which the lever assembly 125 is coupled to the armature 17. The second leg 133 of the biasing spring element 131 extends between the axis of rotation 140 of the lever assembly and the point at which the lever member 128 engages the output shaft 108, Figure 2. Figure 2 shows a side view of the bearing 140th
Zwischen den beiden Schenkeln befindet sich ein Spiralteil 143, der aus zwei gegenläufig gewickelten Spiralen 144 und 145 des Vorspannfederelements 131 besteht, Figur 3. Die beiden Spiralen 144 und 145 sind so in einen Hohlraum des Hebelteils eingeklipst, dass das Vorspannfederelement 131 und das Hebelteil 128 eine vormontierte Hebelbaugruppe 125 bilden. Ein Bereich 148 des Vorspannfederelements 131 ist zwischen dem Hebelteil 128 und einem Schild 151 angeordnet. Between the two legs there is a spiral part 143, which consists of two oppositely wound spirals 144 and 145 of the bias spring member 131, Figure 3. The two spirals 144 and 145 are clipped into a cavity of the lever member so that the biasing spring member 131 and the lever member 128th form a preassembled lever assembly 125. A portion 148 of the bias spring member 131 is disposed between the lever member 128 and a shield 151.
Es ist demnach eine Startvorrichtung 10 für Brennkraftmaschinen offenbart, die einen Vorspuraktuator 16 aufweist, der einen axial verschiebbaren Anker 17 hat, und die ein Andrehritzel 22 aufweist, welches axial verschiebbar ist. Des Weiteren weist diese Startvorrichtung 10 eine Hebelbaugruppe 125 auf, welche an einer Stelle 137 mit dem Anker 17 gekoppelt ist. An mindestens einer anderen Stelle 134 ist die Hebelbaugruppe zumindest mittelbar mit dem Andrehritzel 22 gekoppelt. Die Startvorrichtung weist zudem eine Lagerstelle 140 auf, an welcher die Hebelbaugruppe 125 drehbar gelagert ist. Ein Vorspannfederelement 131 ist Teil der Hebelbaugruppe 125. Ein Vorspannfederelement, welches Teil der Hebelbaugruppe 125 ist und an welchem der Anker 17 gekoppelt ist, ist ebenfalls vorhanden. Das Hebelteil 128 greift an einem Ende an einer Abtriebswelle 108 ein. Ein Bereich 148 des Vorspannfederelements 131 ist zwischen dem Hebelteil 128 und einem Schild 151 angeordnet. Darüber hinaus ist der Schild 151 zwischen dem Stützelement 118 und dem Bereich 148 des Vorspannfederelements 131 angeordnet. Das Stützelement 118 kann dabei vorzugsweise auch als Lagerbock ausgeführt sein, der mittelbar oder direkt die Hebelbaugruppe 125 drehbar lagert. Hinsichtlich der Materialeigenschaften der beteiligten Elemente ist vorgesehen, dass ein Gleitreibungskoeffizient zwischen dem Material des Bereichs 148 des Vorspannfederelements 131 und dem Stützelement 118 des Vorspannfederelements 131 größer ist als ein Gleitreibungskoeffizient zwischen dem Material des Bereichs 148 des Vorspannfederelements 131 und dem Schild 151. It is therefore disclosed a starting device 10 for internal combustion engines, which has a Vorspuraktuator 16 which has an axially displaceable armature 17, and which has a starter pinion 22 which is axially displaceable. Furthermore, this starting device 10 has a lever assembly 125, which is coupled at a location 137 with the armature 17. At least one other point 134, the lever assembly is at least indirectly coupled to the starter pinion 22. The starting device also has a bearing point 140, on which the lever assembly 125 is rotatably mounted. A biasing spring member 131 is part of the lever assembly 125. A biasing spring member, which is part of the lever assembly 125 and to which the armature 17 is coupled, is also present. The lever member 128 engages an output shaft 108 at one end. A portion 148 of the bias spring member 131 is disposed between the lever member 128 and a shield 151. In addition, the shield 151 is disposed between the support member 118 and the portion 148 of the bias spring member 131. The support member 118 may preferably be designed as a bearing block, which indirectly or directly the lever assembly 125 rotatably supports. With regard to the material properties of the elements involved, it is provided that a coefficient of sliding friction between the material of the region 148 of the biasing spring element 131 and the support element 118 of the biasing spring element 131 is greater than a sliding friction coefficient between the material of the region 148 of the biasing spring element 131 and the shield 151.
In Figur 3 ist ein Querschnitt entlang der Linie III-III wie in Figur 2 gezeigt, dargestellt. Gut zu erkennen sind die beiden Haken 160, 161, über die die beiden Haltearme 168 und 170 übergreifen. Des Weiteren ist der Schild 151 im Querschnitt zu erkennen. Von diesem Schild 151 gehen an einem Ende 163 und am anderen Ende 166 je ein Haltearm 168 und 170 aus. Diese Haltearme 168 und 170 weisen jeweils ein Loch auf 173 und 176, die über die beiden Haken 160, 161 geschoben sind. Zum vereinfachten Einschieben bzw. über die Haken 160, 161 Schieben sind die beiden Haltearme 173 und 176 mit angeschrägten Enden 178 und 180 versehen. Die Haltearme 168 und 170 nehmen zwischen sich die beiden Spiralteile 144 und 145 auf. Damit ist der Bereich 148 zwischen den beiden Haltearmen 168 und 170 aufgenommen. Der Schild 151 ist damit am Hebelteil 128 befestigt. Darüber hinaus greift der Schild 151 mit dem mindestens einen Haltearm 168, 170 in eine Haltekontur 183 - repräsentiert durch die beiden Haken 160, 161 - am Hebelteil 128 ein. FIG. 3 shows a cross section along the line III-III as shown in FIG. Good to see the two hooks 160, 161, over which the two support arms 168 and 170 overlap. Furthermore, the shield 151 can be seen in cross section. From this shield 151 go at one end 163 and at the other end 166 depending on a support arm 168 and 170 from. These retaining arms 168 and 170 each have a hole on 173 and 176, which are pushed over the two hooks 160, 161. For simplified insertion or over the hooks 160, 161 push the two support arms 173 and 176 are provided with tapered ends 178 and 180. The holding arms 168 and 170 receive between them the two spiral parts 144 and 145. Thus, the area 148 is received between the two holding arms 168 and 170. The shield 151 is thus attached to the lever part 128. In addition, the shield 151 engages with the at least one holding arm 168, 170 in a holding contour 183 - represented by the two hooks 160, 161 - on the lever part 128.
In Figur 4 ist eine Explosionsdarstellung dargestellt, die das Hebelteil 128, das Vorspannfederelement 131 und den Schild 151 zeigt. Wie hier gut zu erkennen ist, ist der Schild 151 einstückig mit den Haltearmen 168, 170 ausgeführt. Dieses Schildteil 151 mit den Haltearmen 168 und 170 ist aus Blech gefertigt. Das Schild 151 hat hier im Wesentlichen das Profil eines halben in etwa ring- bzw. kreisförmigen Rohrs, von dem an dessen Enden Anschrägungen 186 bzw. 187 ausgehen. Diese Anschrägungen dienen dazu die Spiralen 144, 145 so zu umgreifen, so dass an den Spiralen keine Kante scheuert. In Figure 4 is an exploded view showing the lever member 128, the biasing spring member 131 and the shield 151. As can be clearly seen here, the shield 151 is made in one piece with the holding arms 168, 170. This shield member 151 with the holding arms 168 and 170 is made of sheet metal. The shield 151 has here substantially the profile of a half approximately annular or circular pipe, from the bevels 186 and 187 go out at the ends thereof. These chamfers serve to surround the spirals 144, 145 so that no edge rubs against the spirals.
Der Schild kann an dem Hebelteil 128 bzw. der Hebelbaugruppe 125 alternativ auch durch zusätzliche Teile wie Schrauben oder Bolzen befestigt sein. Des Weiteren kann der Schild 151 auch durch schlitzartige Geometrien in dem Hebelteil 128 befestigt sein, wobei rechtwinklige Abschnitte, welche mit dem Schildteil bzw. Schild 151 verbunden sind, in diese schlitzartigen Geometrien eingesetzt sind. The shield may alternatively be attached to the lever member 128 and the lever assembly 125 by additional parts such as screws or bolts. Furthermore, the shield 151 may also be secured by slot-like geometries in the lever portion 128, wherein rectangular portions, which with the shield part and shield 151 are connected, are inserted into these slot-like geometries.
Weitere Alternativen zur Befestigung bzw. des Pressens des Schildes 151 auf dem Hebelteil 128 bestehen darin, diesen festzukleben oder zu umspritzen.  Other alternatives for mounting or pressing the shield 151 on the lever member 128 are to stick or to overmold.

Claims

Ansprüche claims
1. Startvorrichtung (10) für Brennkraftmaschinen, mit einem Vorspuraktuator (16), der einen axial verschiebbaren Anker (17) hat, und einem Andrehritzel (22), welches axial verschiebbar ist, und mit einer Hebelbaugruppe (125), welche an einer Stelle (137) mit dem Anker (17) gekoppelt ist und an mindestens einer anderen Stelle zumindest mittelbar mit dem Andrehritzel (22), mit einer Lagerstelle (140), an welcher die Hebelbaugruppe (125) drehbar gelagert ist, mit einem Vorspannfederelement (131), welches Teil der Hebelbaugruppe (125) ist und an welchem der Anker (17) gekoppelt ist, und mit einem Hebelteil (128), welches mit einem Ende an einer Abtriebswelle (108) eingreift, dadurch gekennzeichnet, dass ein Bereich (148) des Vorspannfederelements (131) zwischen dem Hebelteil (128) und einem Schild (151) angeordnet ist. A starting device (10) for internal combustion engines, comprising a toggle actuator (16) having an axially displaceable armature (17) and a starter pinion (22) which is axially displaceable, and a lever assembly (125) which is in one place (137) is coupled to the armature (17) and at least at another location at least indirectly with the starter pinion (22), with a bearing point (140) on which the lever assembly (125) is rotatably mounted, with a biasing spring element (131) which is part of the lever assembly (125) and to which the armature (17) is coupled, and a lever part (128) which engages with one end on an output shaft (108), characterized in that a portion (148) of the Biasing spring element (131) between the lever part (128) and a shield (151) is arranged.
2. Startvorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass der Schild (151) zwischen einem Stützelement (118) und dem Bereich (148) des Vorspannfederelements (131) angeordnet ist. 2. Starting device according to claim 1, characterized in that the shield (151) between a support element (118) and the region (148) of the biasing spring element (131) is arranged.
3. Startvorrichtung nach Anspruch 2, dadurch gekennzeichnet, dass ein Gleitreibungskoeffizient zwischen dem Material des Bereichs (148) des Vorspannfederelements (131) und dem Stützelement (118) des Vorspannfederelements (131) größer ist als ein Gleitreibungskoeffizient zwischen dem Material des Bereichs (148) des Vorspannfederelements (131) und dem Schild (151). 3. Starting device according to claim 2, characterized in that a sliding friction coefficient between the material of the region (148) of the biasing spring member (131) and the support member (118) of the biasing spring member (131) is greater than a coefficient of sliding friction between the material of the region (148). the bias spring member (131) and the shield (151).
4. Startvorrichtung nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass der Schild (151) am Hebelteil (128) befestigt ist. 4. Starting device according to one of the preceding claims, characterized in that the shield (151) on the lever part (128) is attached.
5. Startvorrichtung nach Anspruch 4, dadurch gekennzeichnet, dass der Schild (151) wenigstens einen Haltearm (168, 170) aufweist, der in eine Haltekontur (183) eingreift. 5. Starting device according to claim 4, characterized in that the shield (151) has at least one holding arm (168, 170) which engages in a holding contour (183).
6. Startvorrichtung nach Anspruch 5, dadurch gekennzeichnet, dass die Haltekontur (183) ein Haken (160, 161) oder ein Halteschlitz ist. 6. Starting device according to claim 5, characterized in that the holding contour (183) is a hook (160, 161) or a retaining slot.
PCT/EP2016/080084 2015-12-16 2016-12-07 Starting device for internal combustion engines WO2017102501A1 (en)

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Application Number Priority Date Filing Date Title
CN201680073435.6A CN108474342B (en) 2015-12-16 2016-12-07 Starting device for internal combustion engine

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DE102015225380.5A DE102015225380A1 (en) 2015-12-16 2015-12-16 Starting device for internal combustion engines

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2915062A1 (en) * 1978-04-18 1979-10-25 Paris & Du Rhone ELECTRIC STARTER FOR COMBUSTION MACHINERY
JPH0510781U (en) * 1991-07-18 1993-02-12 株式会社三ツ葉電機製作所 Pinion shift lever structure for starter
DE102011003200A1 (en) 2011-01-26 2012-07-26 Robert Bosch Gmbh Starting device for internal combustion engines

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB420519A (en) * 1932-03-30 1934-11-29 Eclipse Machine Co Improvements in engine starters
FR2398894A1 (en) * 1977-07-25 1979-02-23 Paris & Du Rhone PERFECTED DEVICE FOR MAINTAINING THE DRIVE DRIVES OF THE LAUNCHER OF AN ELECTRIC STARTER
FR2403463A1 (en) * 1977-09-15 1979-04-13 Paris & Du Rhone STARTER FOR INTERNAL COMBUSTION ENGINE
JP3740658B2 (en) * 2000-04-18 2006-02-01 三菱電機株式会社 Shift lever device for starter motor
DE102011084098A1 (en) * 2011-10-06 2013-04-11 Robert Bosch Gmbh Starting device, particularly starter for starting internal combustion engine, has sliding element is rotatably fixed to lever so that sliding element is designed both for sliding movement as well as rotational movement

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2915062A1 (en) * 1978-04-18 1979-10-25 Paris & Du Rhone ELECTRIC STARTER FOR COMBUSTION MACHINERY
JPH0510781U (en) * 1991-07-18 1993-02-12 株式会社三ツ葉電機製作所 Pinion shift lever structure for starter
DE102011003200A1 (en) 2011-01-26 2012-07-26 Robert Bosch Gmbh Starting device for internal combustion engines

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CN108474342B (en) 2020-05-12
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