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EP1723317B1 - Lever for a valve control of a piston machine - Google Patents

Lever for a valve control of a piston machine Download PDF

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Publication number
EP1723317B1
EP1723317B1 EP05745191A EP05745191A EP1723317B1 EP 1723317 B1 EP1723317 B1 EP 1723317B1 EP 05745191 A EP05745191 A EP 05745191A EP 05745191 A EP05745191 A EP 05745191A EP 1723317 B1 EP1723317 B1 EP 1723317B1
Authority
EP
European Patent Office
Prior art keywords
lever
side part
hand side
width
tapers
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.)
Active
Application number
EP05745191A
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German (de)
French (fr)
Other versions
EP1723317A1 (en
Inventor
Christof Faria
Frank Himsel
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.)
IHO Holding GmbH and Co KG
Original Assignee
Schaeffler KG
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Publication date
Application filed by Schaeffler KG filed Critical Schaeffler KG
Publication of EP1723317A1 publication Critical patent/EP1723317A1/en
Application granted granted Critical
Publication of EP1723317B1 publication Critical patent/EP1723317B1/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/12—Transmitting gear between valve drive and valve
    • F01L1/18—Rocking arms or levers
    • F01L1/185—Overhead end-pivot rocking arms
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L2303/00—Manufacturing of components used in valve arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L2305/00—Valve arrangements comprising rollers
    • F01L2305/02—Mounting of rollers
    • 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
    • Y10T74/20—Control lever and linkage systems
    • Y10T74/20576—Elements
    • Y10T74/20882—Rocker arms

Definitions

  • the invention relates to a lever for the valve control of a reciprocating engine, preferably for the Hubventil tortureung an internal combustion piston engine, such as rocking, tilting or drag lever, with a roller disposed in a space between two side parts of the lever and on a lever mounted in the bearing bolt is stored.
  • Levers of the above type are preferably used in Hubventilberichtungen of internal combustion piston engines.
  • a bore for the installation of the bearing pin is to be introduced in the side parts so that they are coaxial with each other.
  • This is usually done with a non-cutting formed (sheet metal) lever by opposing punching of the two sides of the lever, wherein the leached pieces of material are first pressed into the roller bag lying between the two side parts and then removed from there.
  • This method is not possible if the sum of the thicknesses of the pieces of material dissolved out is greater than the width of the roller bag present in the lever.
  • the invention has for its object to ensure an opposing punching for the preparation of the holes in both sides of the lever even with such levers, the constructively have a width of the roller bag, which is smaller than the sum of the thicknesses of both sides.
  • the invention is based on the finding that the method of counter-perforation is applicable to such levers under the condition that the sum of the thicknesses of the pieces of material leached out during punching is smaller than the width of the roll pocket.
  • the invention is therefore based on a lever for the valve control of a piston engine, such as rocking, tilting or drag lever, with a provided for the support on a rotatable cam roller, which lies in a trapped by a left and a right side part of the roller bag and on a bearing mounted in the lever bearing pin is rotatably mounted.
  • the wall thicknesses should be reduced so far that the width of the roller bag is equal to or greater than the sum of the locally reduced lever wall thicknesses of the left and right side part.
  • the rejuvenation of the side parts can be carried out by Ur-, forming or material-removing processes. At the same time, it can advantageously replace the depressions often introduced retroactively in known levers for caulking the bearing bolts.
  • the shape of the taper is optional, provided that the maximum permissible thickness of the lever wall thicknesses in the region of these tapers is not exceeded.
  • the tapers according to manufacturing requirements on the outer sides, the inner sides of the side parts or on both sides.
  • a taper on the outside of the left side part may be paired with a taper on the inside of the right side part.
  • a taper on the inside of the left side part can be combined with a taper on the inside in the right side part.
  • Other possibilities are to combine the four possible positions of the rejuvenations. The choice of combinations may result according to design requirements, resulting from the application operating conditions or manufacturing constraints.
  • a preferred embodiment of the invention is to install in the two side parts each lying outside the tapers. This gives the opportunity to make in each case the caulking of the bearing pin in the region of the taper, wherein the connection techniques between side panels and the bearing pin can be maintained.
  • Fig. 1 shows a Rollenschlepphebel, as he can find in the Hubventil penetrateung of internal combustion piston engines use. It consists essentially of a left side part 1, a right side part 2, a connecting web 3 (bearing cup) and a connecting web 4 (bracket).
  • a roller 6 which is rotatably mounted on a bearing pin 7.
  • a taper 8 of the same is formed at least on the outside of the left side part 1.
  • the tapers 8, 9, 10 and 16 are made so deep that the sum of the supporting width 12 of the left side part 1 and the supporting width 13 of the right side part 2 for the bearing pin 7 is less than or equal to the same size as the total width of the 11th the roller bag 5. It follows that the sum of the thicknesses of the dissolved in opposite holes punching Materialstüdce is also smaller or at most equal to the total width 11 of the roller bag 5.
  • the preferred method for producing the holes 14 for the bearing pin 7 in the side parts 1, 2 can be maintained by opposing punching despite reduction of the roller bag 5.
  • the structure described above makes it possible to reduce the roller bag 5 in its overall width 11 as far as constructive, technological and operational requirements allow this.
  • the material used for the lever and for the roller 6 can thereby be reduced as well as its size. This is also a reduction of the mass to be moved, which opens up opportunities for optimizing the performance of the relevant reciprocating engines. This minimization is limited only by strength requirements.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)

Description

Gebiet der ErfindungField of the invention

Die Erfindung betrifft einen Hebel für die Ventilsteuerung einer Kolbenmaschine, vorzugsweise für die Hubventilsteuerung einer Brennkraft-Kolbenmaschine, wie Schwing-, Kipp- oder Schlepphebel, mit einer Rolle, die in einem Zwischenraum zwischen zwei Seitenteilen des Hebels angeordnet und auf einem im Hebel befestigtem Lagerbolzen gelagert ist.The invention relates to a lever for the valve control of a reciprocating engine, preferably for the Hubventilsteuerung an internal combustion piston engine, such as rocking, tilting or drag lever, with a roller disposed in a space between two side parts of the lever and on a lever mounted in the bearing bolt is stored.

Hintergrund der ErfindungBackground of the invention

Hebel der oben genannten Art werden vorzugsweise bei Hubventilsteuerungen von Brennkraft-Kolbenmaschinen verwendet. Bei der Herstellung eines solchen Hebels ist in dessen Seitenteile jeweils eine Bohrung für den Einbau des Lagerbolzens so einzubringen, dass diese koaxial zueinander liegen. Üblicherweise erfolgt dies bei einem spanlos geformten (Blech-)Hebel durch gegenläufiges Lochen der beiden Hebelseitenteile, wobei die beim Lochen herausgelösten Materialstücke zunächst in die zwischen beiden Seitenteilen liegende Rollentasche gedrückt und anschließend von dort entfernt werden. Die Anwendung dieses Verfahrens ist dann nicht möglich, wenn die Summe der Dicken der herausgelösten Materialstücke größer ist als die Breite der im Hebel vorhandenen Rollentasche.Levers of the above type are preferably used in Hubventilsteuerungen of internal combustion piston engines. In the production of such a lever in each case a bore for the installation of the bearing pin is to be introduced in the side parts so that they are coaxial with each other. This is usually done with a non-cutting formed (sheet metal) lever by opposing punching of the two sides of the lever, wherein the leached pieces of material are first pressed into the roller bag lying between the two side parts and then removed from there. The application of this method is not possible if the sum of the thicknesses of the pieces of material dissolved out is greater than the width of the roller bag present in the lever.

Vor diesem Hintergrund ist es bekannt, an den Außenseiten der Seitenteile im Bohrungsbereich Senkungen einzubringen, die mit weiteren Maßnahmen eine formschlüssige Verdrehsicherung des Lagerbolzens ermöglichen sollen. So ist gemäß der DE 197 42 778 A1 eine diesbezügliche Zylindersenkung vorbekannt. Gemäß der WO 03/064821 A1 soll an einem Hebel eine Fase zur Aufnahme von Mitteln zur Verdrehsicherung für den Lagerbolzen einsetzbar sein. In beiden Fällen muss jedoch deren Herstellung bei der Endbearbeitung der Bohrung für den Lagerbolzen erfolgen. Eine Herstellung der Senkungen beim oder vor dem Lochen ist ausgeschlossen.Against this background, it is known to introduce on the outsides of the side parts in the bore region subsidence, which should enable a positive rotation of the bearing pin with further measures. So is according to the DE 197 42 778 A1 a related cylinder reduction previously known. According to the WO 03/064821 A1 should be used on a lever a chamfer for receiving means for preventing rotation of the bearing pin. In both cases, however, their manufacture must be carried out during the completion of the bore for the bearing pin. A preparation of the subsidence during or before punching is excluded.

Aufgabe der ErfindungObject of the invention

Der Erfindung liegt die Aufgabe zugrunde, ein gegenläufiges Lochen zur Herstellung der Bohrungen in beiden Seitenteilen des Hebels auch bei solchen Hebeln sicherzustellen, die konstruktiv bedingt eine Breite der Rollentasche aufweisen, die kleiner ist als die Summe der Dicken beider Seitenteile.The invention has for its object to ensure an opposing punching for the preparation of the holes in both sides of the lever even with such levers, the constructively have a width of the roller bag, which is smaller than the sum of the thicknesses of both sides.

Zusammenfassung der ErfindungSummary of the invention

Der Erfindung liegt die Erkenntnis zugrunde, dass das Verfahren des gegenläufigen Lochens bei derartigen Hebeln unter der Bedingung anwendbar ist, dass die Summe der Dicken der beim Lochen herausgelösten Materialstücke kleiner ist als die Breite der Rollentasche.The invention is based on the finding that the method of counter-perforation is applicable to such levers under the condition that the sum of the thicknesses of the pieces of material leached out during punching is smaller than the width of the roll pocket.

Die Erfindung geht daher aus von einem Hebel für die Ventilsteuerung einer Kolbenmaschine, wie Schwing-, Kipp- oder Schlepphebel, mit einer für die Abstützung an einem drehbaren Nocken vorgesehenen Rolle, die in einer von einem linken und einem rechten Seitenteil eingeschlossenen Rollentasche liegt und auf einem im Hebel gelagerten Lagerbolzen drehbar gelagert ist.The invention is therefore based on a lever for the valve control of a piston engine, such as rocking, tilting or drag lever, with a provided for the support on a rotatable cam roller, which lies in a trapped by a left and a right side part of the roller bag and on a bearing mounted in the lever bearing pin is rotatably mounted.

Zur Lösung der gestellten Aufgabe ist zudem vorgesehen, im Umgebungsbereich der späteren Bohrung zur Aufnahme des Lagerbolzens eine Reduzierung der Wandstärke der Seitenteile auszuführen. Dabei sollen die Wanddicken soweit reduziert werden, dass die Breite der Rollentasche gleich oder größer ist als die Summe der lokal reduzierten Hebelwandstärken des linken und des rechten Seitenteils.To solve the task is also provided to perform a reduction in the wall thickness of the side parts in the vicinity of the later bore for receiving the bearing pin. The wall thicknesses should be reduced so far that the width of the roller bag is equal to or greater than the sum of the locally reduced lever wall thicknesses of the left and right side part.

Solcher Art Verjüngungen verringern zugleich die Tragbreite der Seitenteile gegenüber dem Lagerbolzen. Letztlich bedarf es deshalb einer Optimierung der Maßverhältnisse bei gleichzeitiger Einhaltung der erfindungsgemäßen Bedingung.Such type tapers at the same time reduce the carrying width of the side parts relative to the bearing pin. Ultimately, therefore, it requires an optimization of the dimensional ratios while maintaining the condition of the invention.

Die Verjüngung der Seitenteile kann durch Ur-, Umform- oder werkstoffabtragende Verfahren ausgeführt werden. Sie kann zugleich die bei bekannten Hebeln häufig nachträglich eingebrachten Senkungen zum Verstemmen der Lagerbolzen vorteilhaft ersetzen. Die Form der Verjüngung ist freigestellt, sofern die maximal zulässige Dicke der Hebelwandstärken im Bereich dieser Verjüngungen nicht überschritten wird.The rejuvenation of the side parts can be carried out by Ur-, forming or material-removing processes. At the same time, it can advantageously replace the depressions often introduced retroactively in known levers for caulking the bearing bolts. The shape of the taper is optional, provided that the maximum permissible thickness of the lever wall thicknesses in the region of these tapers is not exceeded.

Zudem kann vorgesehen sein, die genannten Verjüngungen der Hebelseitenwände bereits bei der Herstellung der Rohform des Hebels mit einzuarbeiten und diese durch Umformvorgänge zu erzeugen. Ein zusätzlicher Vorteil kann sich daraus ergeben, dass durch nachträgliche Materialumformung eine Verfestigung des Grundwerkstoffes eintritt.In addition, it can be provided to incorporate the said tapers of the lever side walls already in the production of the raw form of the lever and to produce these by forming operations. An additional advantage may arise from the fact that a subsequent hardening of the base material occurs due to subsequent material deformation.

Ebenso kann vorgesehen sein, die Verjüngungen durch materialabtragende Verfahren zu erzeugen.It can also be provided to produce the tapers by material-removing method.

Weiterhin besteht die Möglichkeit, die Verjüngungen nach fertigungstechnischen Erfordernissen an den Außenseiten, den Innenseiten der Seitenteile oder beidseitig anzuordnen. So kann beispielsweise eine Verjüngung an der Außenseite des linken Seitenteils mit einer Verjüngung an der Innenseite des rechten Seitenteils gepaart sein. Ebenso kann eine Verjüngung an der Innenseite des linken Seitenteils mit einer Verjüngung an der Innenseite im rechten Seitenteil kombiniert werden. Weitere Möglichkeiten bestehen darin, die vier möglichen Positionen der Verjüngungen miteinander zu kombinieren. Die Wahl der Kombinationen kann sich dabei nach konstruktiven Erfordernissen, aus dem Einsatzfall resultierenden Betriebsbedingungen oder fertigungstechnischen Randbedingungen ergeben.Furthermore, it is possible to arrange the tapers according to manufacturing requirements on the outer sides, the inner sides of the side parts or on both sides. For example, a taper on the outside of the left side part may be paired with a taper on the inside of the right side part. Likewise, a taper on the inside of the left side part can be combined with a taper on the inside in the right side part. Other possibilities are to combine the four possible positions of the rejuvenations. The choice of combinations may result according to design requirements, resulting from the application operating conditions or manufacturing constraints.

Eine bevorzugte Ausführungsform der Erfindung besteht darin, in den beiden Seitenteilen jeweils außen liegend die Verjüngungen anzubringen. Damit wird die Möglichkeit erhalten, im Bereich der Verjüngung jeweils die Verstemmung des Lagerbolzens vorzunehmen, wobei die Verbindungstechniken zwischen Seitenteilen und dem Lagerbolzen beibehalten werden können.A preferred embodiment of the invention is to install in the two side parts each lying outside the tapers. This gives the opportunity to make in each case the caulking of the bearing pin in the region of the taper, wherein the connection techniques between side panels and the bearing pin can be maintained.

Kurze Beschreibung der ZeichnungenBrief description of the drawings

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird nachfolgend näher beschrieben. Darin zeigen

Fig. 1
eine perspektivische Darstellung des erfindungsgemäßen Hebels;
Fig. 2
eine Schnittdarstellung des Hebels in der Ebene der Lagerung (Schnitt A-A).
An embodiment of the invention is illustrated in the drawing and will be described in more detail below. Show in it
Fig. 1
a perspective view of the lever according to the invention;
Fig. 2
a sectional view of the lever in the plane of storage (section AA).

Detaillierte Beschreibung der ZeichnungenDetailed description of the drawings

Fig. 1 zeigt einen Rollenschlepphebel, wie er bei der Hubventilsteuerung von Brennkraft-Kolbenmotoren Verwendung finden kann. Derselbe besteht im Wesentlichen aus einem linken Seitenteil 1, einem rechten Seitenteil 2, einem Verbindungssteg 3 (Lagerpfanne) und einem Verbindungssteg 4 (Bügel). In der Rollentasche 5 zwischen dem linken Seitenteil 1 und dem rechten Seitenteil 2 befindet sich eine Rolle 6, die auf einem Lagerbolzen 7 drehbar gelagert ist. Zudem ist erkennbar, dass zumindest an der Außenseite des linken Seitenteils 1 eine Verjüngung 8 desselben ausgebildet ist.Fig. 1 shows a Rollenschlepphebel, as he can find in the Hubventilsteuerung of internal combustion piston engines use. It consists essentially of a left side part 1, a right side part 2, a connecting web 3 (bearing cup) and a connecting web 4 (bracket). In the roller bag 5 between the left side part 1 and the right side part 2 is a roller 6 which is rotatably mounted on a bearing pin 7. In addition, it can be seen that a taper 8 of the same is formed at least on the outside of the left side part 1.

Wie insbesondere Fig. 2 verdeutlicht, ist es möglich, an jeden der beiden Seitenteile 1, 2 zwei solche Verjüngungen auszubilden, so dass maximal vier Verjüngungen 8, 9, 10 und 16 beliebig miteinander kombiniert sein können. In jedem Fall ist dabei dafür gesorgt, dass die den Lagerbolzen 7 tragende Breite 12 im linken Seitenteil 1 sowie die tragende Breite 13 im rechten Seitenteil 2 hinsichtlich ihrer mechanisch notwendigen Abmessungen aufeinander abgestimmt sind.As illustrated in particular in FIG. 2, it is possible to form two such tapers on each of the two side parts 1, 2 so that a maximum of four tapers 8, 9, 10 and 16 can be combined with one another as desired. In any case, it is ensured that the bearing pin 7 carrying width 12 in the left side part 1 and the supporting width 13 in the right side part 2 are matched with respect to their mechanically necessary dimensions.

Die Verjüngungen 8, 9, 10 und 16 sind so tief ausgeführt, dass die Summe aus der tragenden Breite 12 des linken Seitenteils 1 und der tragenden Breite 13 des rechten Seitenteils 2 für den Lagerbolzen 7 kleiner oder maximal gleich groß ist, wie die Gesamtbreite 11 der Rollentasche 5. Daraus ergibt sich, dass die Summe der Dicken der beim gegenläufigen Lochen herausgelösten Materialstüdce gleichfalls kleiner oder allenfalls gleich der Gesamtbreite 11 der Rollentasche 5 ist.The tapers 8, 9, 10 and 16 are made so deep that the sum of the supporting width 12 of the left side part 1 and the supporting width 13 of the right side part 2 for the bearing pin 7 is less than or equal to the same size as the total width of the 11th the roller bag 5. It follows that the sum of the thicknesses of the dissolved in opposite holes punching Materialstüdce is also smaller or at most equal to the total width 11 of the roller bag 5.

Dadurch kann das bevorzugte Verfahren zur Herstellung der Bohrungen 14 für den Lagerbolzen 7 in den Seitenteilen 1, 2 durch gegenläufiges Lochen trotz Verkleinerung der Rollentasche 5 beibehalten werden.Thereby, the preferred method for producing the holes 14 for the bearing pin 7 in the side parts 1, 2 can be maintained by opposing punching despite reduction of the roller bag 5.

Der oben beschriebene Aufbau ermöglicht es, die Rollentasche 5 in ihrer Gesamtbreite 11 so weit zu verringern, wie konstruktive, technologische und betriebstechnische Erfordernisse dieses zulassen. Der Materialeinsatz für den Hebel und für die Rolle 6 kann dadurch ebenso wie dessen Baugröße verringert werden. Damit ist auch eine Reduzierung der zu bewegenden Masse zu erreichen, welches Möglichkeiten zur Optimierung des Betriebsverhaltens der betreffenden Kolbenmaschinen eröffnet. Diese Minimierung ist lediglich durch Festigkeitserfordernisse begrenzt.The structure described above makes it possible to reduce the roller bag 5 in its overall width 11 as far as constructive, technological and operational requirements allow this. The material used for the lever and for the roller 6 can thereby be reduced as well as its size. This is also a reduction of the mass to be moved, which opens up opportunities for optimizing the performance of the relevant reciprocating engines. This minimization is limited only by strength requirements.

Bei der Herstellung eines Hebels ausschließlich mit den außen liegenden Verjüngungen 8 und 16 besteht die Möglichkeit, den vorhandenen Freiraum für eine Verstemmung 15 des Lagerbolzens 7 zu nutzen, wobei diese nach den bekannten Bearbeitungsarten ausgeführt werden kann.In the production of a lever exclusively with the outer tapers 8 and 16, it is possible to use the available space for caulking 15 of the bearing pin 7, which can be carried out according to the known types of processing.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
Linkes SeitenteilLeft side panel
22
Rechtes SeitenteilRight side part
33
Verbindungssteg (Schale)Connecting bridge (shell)
44
Verbindungssteg (Bügel)Connecting bar (bracket)
55
Rollentaschereel case
66
Rollerole
77
Lagerbolzenbearing bolt
88th
Außen liegende Verjüngung im linken Seitenteil 1External rejuvenation in the left side part 1
99
Innen liegende Verjüngung im linken Seitenteil 1Internal rejuvenation in the left side part 1
1010
Innen liegende Verjüngung im rechten Seitenteil 2Internal rejuvenation in the right side part 2
1111
Gesamtbreite der Rollentasche 5Overall width of the roller bag 5
1212
Tragende Breite im Seitenteil 1Carrying width in the side part 1
1313
Tragende Breite im Seitenteil 2Carrying width in the side part 2
1414
Bohrungdrilling
1515
Verstemmungcaulking
1616
Außen liegende Verjüngung im rechten Seitenteil 2External rejuvenation in the right side part 2

Claims (6)

  1. Lever for the valve timing of a piston engine, such as a valve lever, rocker arm or follower arm, having a roller (6), which is arranged in a roller compartment (5) formed by a left-hand side part (1) and a right-hand side part (2) of the lever and is rotatably supported on a pivot pin (7) arranged in the lever, characterized in that the width (11) of the roller compartment (5) is less than the sum of the overall thicknesses of the left-hand side part (1) and the right-hand side part (2) of the lever, the left-hand side part (1) and the right-hand side part (2) being tapered (tapers 8, 9, 10, 16) in the area of a bore (14) for accommodating the pivot pin (7) to such a degree that the sum of the width (12) of the left-hand side part (1) supporting the pivot pin (7) and the supporting width (13) of the right-hand side part (2) is less than the width (11) of the roller compartment (5).
  2. Lever according to Claim 1, characterized in that one or more of the tapers (8, 9, 10, 16) in the side parts (1, 2) of the lever are produced by forming.
  3. Lever according to Claim 1, characterized in that one or more of the tapers (8, 9, 10, 16) in the side parts (1, 2) of the lever are produced by material removal.
  4. Lever according to any one of Claims 1 to 3, characterized in that the taper (8, 10) in the left-hand side part (1) and in the right-hand side part (2) is in each case arranged on the outside or on the inside (taper 9, 16).
  5. Lever according to any one of Claims 1 to 4, characterized in that in the area of at least one of the outer tapers (8, 16) the pivot pin (7) has means of torsional and/or positional locking, preferably a caulking (15).
  6. Lever according to any one of Claims 1 to 4, characterized in that one side part (1) has an outer taper (8 or 16), whilst on the other side part (2) the taper (9 or 10) is formed on the side facing the roller compartment (5).
EP05745191A 2004-03-12 2005-02-09 Lever for a valve control of a piston machine Active EP1723317B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004012142A DE102004012142A1 (en) 2004-03-12 2004-03-12 Lever for the valve control of a piston engine
PCT/EP2005/001273 WO2005088083A1 (en) 2004-03-12 2005-02-09 Lever for a valve control of a piston machine

Publications (2)

Publication Number Publication Date
EP1723317A1 EP1723317A1 (en) 2006-11-22
EP1723317B1 true EP1723317B1 (en) 2007-06-20

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP05745191A Active EP1723317B1 (en) 2004-03-12 2005-02-09 Lever for a valve control of a piston machine

Country Status (5)

Country Link
US (1) US7444972B2 (en)
EP (1) EP1723317B1 (en)
CN (1) CN100410499C (en)
DE (2) DE102004012142A1 (en)
WO (1) WO2005088083A1 (en)

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Publication number Priority date Publication date Assignee Title
DE102011007450A1 (en) 2011-04-15 2012-10-18 Schaeffler Technologies AG & Co. KG Cam follower of a valve train and method for its production
JP6721374B2 (en) 2016-03-29 2020-07-15 株式会社オティックス Rocker arm and method of manufacturing rocker arm
USD818017S1 (en) * 2017-04-25 2018-05-15 Stolle Machinery Company, Llc Multi-stroke swing lever

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WO2005088083A1 (en) 2005-09-22
CN1930376A (en) 2007-03-14
US20070151533A1 (en) 2007-07-05
DE502005000903D1 (en) 2007-08-02
EP1723317A1 (en) 2006-11-22
DE102004012142A1 (en) 2005-09-29
CN100410499C (en) 2008-08-13
US7444972B2 (en) 2008-11-04

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