EP0301267A1 - Ball joint placed between a rocker arm and a valve shaft in an internal-combustion engine - Google Patents

Ball joint placed between a rocker arm and a valve shaft in an internal-combustion engine Download PDF

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Publication number
EP0301267A1
EP0301267A1 EP88110594A EP88110594A EP0301267A1 EP 0301267 A1 EP0301267 A1 EP 0301267A1 EP 88110594 A EP88110594 A EP 88110594A EP 88110594 A EP88110594 A EP 88110594A EP 0301267 A1 EP0301267 A1 EP 0301267A1
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EP
European Patent Office
Prior art keywords
pin
spherical
ball joint
valve stem
joint shell
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.)
Granted
Application number
EP88110594A
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German (de)
French (fr)
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EP0301267B1 (en
Inventor
Walter Dipl.-Ing. Speil
Dieter Schmidt
Michael Dipl.-Ing. Zipprath
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INA Waelzlager Schaeffler OHG
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INA Waelzlager Schaeffler OHG
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    • 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
    • F01L1/20—Adjusting or compensating clearance
    • F01L1/22—Adjusting or compensating clearance automatically, e.g. mechanically
    • F01L1/24—Adjusting or compensating clearance automatically, e.g. mechanically by fluid means, e.g. hydraulically
    • F01L1/2411—Adjusting or compensating clearance automatically, e.g. mechanically by fluid means, e.g. hydraulically by means of a hydraulic adjusting device located between the valve stem and rocker arm
    • 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
    • F01L1/46—Component parts, details, or accessories, not provided for in preceding subgroups
    • 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
    • F01L2001/187—Clips, e.g. for retaining rocker arm on pivot

Definitions

  • the invention relates to a between a rocker arm and a valve stem of an internal combustion engine ball joint, consisting of a cooperating with the rocker arm pin with a spherical end face, which cooperates with a spherical cap of a joint shell, which on its side opposite the spherical cap has a flat surface with which it opposes the valve stem rests, with the pin or a component connected to it starting from a holding element which engages behind the outer surface of the joint shell in such a way that it is held captively on the pin.
  • the invention has for its object to avoid this unwanted play and thus the additional wear that occurs with a simple structural measure.
  • the holding element is designed as a spring element which rests under elastic prestress on the joint shell and thus holds the spherical end face of the pin in play-free contact in the spherical cap.
  • FIGS. 4, 6 and 8 plan views of the embodiments according to FIGS. 3, 5 and 7.
  • a known hydraulic lash adjuster 2 is arranged in a rocker arm 1 and has a pin 4 with a spherical end face 5 at its end facing the valve stem 3.
  • This spherical end face 5 engages in the spherical cap 6 of the joint shell 7, which has a flat face 8 at its opposite end, with which it is in contact with the end face of the valve stem 3.
  • the jacket surface 9 of the joint shell 7 is spherical.
  • a leaf spring 10 is provided, which sits on the one hand with a cylindrical collar 11 on the end of the piston of the hydraulic play compensation element 2 and is fastened there by rolling into a circumferential groove, while on the other hand has a bow-like leg 12, which has a circular bore, with the edge of which it rests on the spherical lateral surface 9 and thereby ensures play-free contact between the spherical cap 6 and the spherical end surface 5.
  • the edge of the circular bore is slightly shaped to form a contact surface in the form of a spherical cap, the surface of which is adapted to the outer surface 9 of the joint shell 7.
  • FIG. 2 shows an embodiment of the type that can be used in motors with manual play adjustment.
  • the rocker arm 13 has a bore 14 into which an extension 15 of the Pin 4 is inserted.
  • the pin 4 is here, as in the example described above, in contact with the joint shell 7, which in this case, however, has no spherical surface. Rather, it has at its end adjacent to the spherical cap of the pin 4 a radial flange 16, against whose radial surface 17 facing away from the pin 4 the first leg 18 of the leaf spring 19 bears.
  • the second leg 20 of the leaf spring 19 is embedded on the one hand between a flat surface of the rocker arm 13 and on the other hand a radial surface 21 of a radial flange 22 which is arranged on the pin 4 at a distance from its spherical end face.
  • Figure 2 shows that the leg 18 of the leaf spring 19 in this embodiment acts so eccentrically on the radial surface 17 of the radial flange 16 that the joint shell 7 is pivoted by such an angular amount relative to the longitudinal axis of the pin 4 that its flat surface 8 parallel runs to the end face of the valve stem 3. This ensures that when the joint shell 7 is placed on the valve stem 3, no additional wear-promoting tilting movement of the joint shell is required.
  • Figures 3 and 4 corresponds essentially to the embodiment of Figure 2.
  • Figures 3 and 4 show that the second leg 20 of the leaf spring 19 surrounds the extension 15 of the pin 4 fork-like and that the ends 23 of the fork arms so are angled so that they engage behind the radial flange 22 and thus prevent the leaf spring from slipping.
  • FIGS. 5 and 6 largely corresponds to the overall structure. Design according to Figure 1, while the attachment of the leaf spring largely corresponds to Figures 3 and 4.
  • FIGS. 7 and 8 show constructions in which the spring element is formed from round wire. Otherwise, this construction also corresponds in its basic structure to the previously described exemplary embodiments.
  • FIGS. 9 and 10 show a further variant, which differs from the previous one in that the flat surface 8 of the joint shell 7, with which it rests against the valve stem 3, has a larger diameter than the valve stem 3
  • Both legs 18 of the leaf spring 19 bifurcated at their ends abut on both sides of the valve stem 3 against the region of the flat surface 8 which projects beyond them and thus hold the joint shell 7 in contact with the spherical end surface of the pin 4.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
  • Portable Nailing Machines And Staplers (AREA)

Abstract

Bei einem zwischen einem Kipphebel (1) und einem Ventilschaft (3) eines Verbrennungsmotors eingeschalteten Kugelgelenk, bestehend aus einem mit dem Kipphebel (1) zusammenwirkenden Zapfen (4) mit balliger Stirnfläche (5), die mit einer Kugelkalotte (6) einer Gelenkschale (7) zusammenwirkt, welche an ihrer der Kugelkalotte (6) gegenüberliegenden Seite eine Planfläche (8) aufweist, mit dem sie gegen den Ventilschaft (3) anliegt, wobei von dem Zapfen (4) oder einem mit diesem verbundenen Bauteil ein Halteelement ausgeht, das die Gelenkschale (7) derart hintergreift, daß diese verliersicher am Zapfen gehalten ist, wird zum Zwecke der Spielausschaltung in dem Kugelgelenk das Halteelement als Federelement (10) ausgebildet, das unter elastischer Vorspannung an der Gelenkschale (7) anliegt und so die ballige Stirnfläche (5) des Zapfens (4) in spielfreier Anlage in der Kugelkalotte (6) hält.In the case of a ball joint connected between a rocker arm (1) and a valve stem (3) of an internal combustion engine, consisting of a pin (4) with a spherical end face (5) which interacts with the rocker arm (1) and which is connected to a spherical cap (6) of a joint shell ( 7) cooperates, which on its side opposite the spherical cap (6) has a flat surface (8) with which it rests against the valve stem (3), a holding element originating from the pin (4) or a component connected to it, which engages behind the joint shell (7) in such a way that it is held captive on the pin, for the purpose of eliminating play in the ball joint, the holding element is designed as a spring element (10) which rests under elastic prestress on the joint shell (7) and thus the spherical end face ( 5) of the pin (4) in play-free contact in the spherical cap (6).

Description

Die Erfindung betrifft ein zwischen einen Kipphebel und einen Ventilschaft eines Verbrennungsmotors eingeschaltetes Kugelgelenk, bestehend aus einem mit dem Kipphebel zusammenwirkenden Zapfen mit balliger Stirnfläche, die mit einer Kugelkalotte einer Gelenkschale zusammenwirkt, welche an ihrer der Kugelkalotte gegenüberliegenden Seite eine Planfläche aufweist, mit dem sie gegen den Ventilschaft anliegt, wobei von dem Zapfen oder einem mit diesem verbundenen Bauteil ein Halteelement ausgeht, das die Mantelfläche der Gelenkschale derart hintergreift, daß diese verliersicher am Zapfen gehalten ist.The invention relates to a between a rocker arm and a valve stem of an internal combustion engine ball joint, consisting of a cooperating with the rocker arm pin with a spherical end face, which cooperates with a spherical cap of a joint shell, which on its side opposite the spherical cap has a flat surface with which it opposes the valve stem rests, with the pin or a component connected to it starting from a holding element which engages behind the outer surface of the joint shell in such a way that it is held captively on the pin.

Es ist bereits eine Ausführung vorgeschlagen worden, bei welcher die Ge­lenkschale derart von einem Halteelement hintergriffen wurde, daß sie verliersicher am Zapfen gehalten war. Die Ausbildung war dabei so getroffen, daß zwischen der balligen Stirnfläche des Zapfens einerseits und der Kugelkalotte der Gelenkschale andererseits Spiel auftreten konnte. Dies führt dann an dieser Kontaktstelle zu zusätzlichem Verschleiß, der vermieden werden sollte.An embodiment has already been proposed in which the joint shell was gripped behind by a holding element in such a way that it was held captively on the pin. The training was such that play could occur between the spherical end face of the pin on the one hand and the spherical cap of the joint shell on the other. This then leads to additional wear at this contact point, which should be avoided.

Der Erfindung liegt die Aufgabe zugrunde, mit einer einfachen baulichen Maßnahme dieses unerwünschte Spiel und damit den auftretenden zusätzlichen Verschleiß zu vermeiden.The invention has for its object to avoid this unwanted play and thus the additional wear that occurs with a simple structural measure.

Diese Aufgabe löst die Erfindung dadurch, daß das Halteelement als Federelement ausgebildet ist, die unter elastischer Vorspannung an der Gelenkschale anliegt und so die ballige Stirnfläche des Zapfens in spiel­freier Anlage in der Kugelkalotte hält.This object is achieved by the invention in that the holding element is designed as a spring element which rests under elastic prestress on the joint shell and thus holds the spherical end face of the pin in play-free contact in the spherical cap.

Zweckmäßige Weiterbildungen der Erfindung sind in den Unteransprüchen wiedergegeben.Appropriate developments of the invention are given in the subclaims.

Die Zeichnungen zeigen in den Figuren 1, 2, 3, 5, 7, 9 und 10 Längs­schnitte durch verschiedene Ausführungsformen der Erfindung und in den Figuren 4, 6 und 8 Draufsichten auf die Ausführungen nach den Figuren 3, 5 und 7.1, 2, 3, 5, 7, 9 and 10, the drawings show longitudinal sections through various embodiments of the invention and in FIGS. 4, 6 and 8 plan views of the embodiments according to FIGS. 3, 5 and 7.

Bei der in Figur 1 dargestellten Ausführung ist in einem Kipphebel 1 ein bekanntes hydraulisches Spielausgleichselement 2 angeordnet, welches an seinem dem Ventilschaft 3 zugekehrten Ende einen Zapfen 4 mit balliger Stirnfläche 5 aufweist. Diese ballige Stirnfläche 5 greift ein in die Kugelkalotte 6 der Gelenkschale 7, die an ihrem entgegengesetzten Ende eine Planfläche 8 aufweist, mit welcher sie mit der Stirnfläche des Ventilschaftes 3 in Kontakt steht.In the embodiment shown in FIG. 1, a known hydraulic lash adjuster 2 is arranged in a rocker arm 1 and has a pin 4 with a spherical end face 5 at its end facing the valve stem 3. This spherical end face 5 engages in the spherical cap 6 of the joint shell 7, which has a flat face 8 at its opposite end, with which it is in contact with the end face of the valve stem 3.

Die Mantelfäche 9 der Gelenkschale 7 ist ballig ausgebildet. Zur spiel­freien Halterung der Gelenkschale 7 an der balligen Stirnfläche 5 des Zapfens 4 ist eine Blattfeder 10 vorgesehen, die einerseits mit einem zylindrischen Bund 11 auf dem Ende des Kolbens des hydraulischen Spiel­ausgleichselementes 2 sitzt und dort durch Einrollen in eine Umfangsnut befestigt ist, während sie andererseits einen bügelartigen Schenkel 12 aufweist, der eine Kreisbohrung besitzt, mit deren Rand er an der balligen Mantelfläche 9 anliegt und dadurch spielfreien Kontakt zwischen der Kugelkalotte 6 und der balligen Stirnfläche 5 gewährleistet. Der Rand der Kreisbohrung ist dabei zur Bildung einer Anlagefläche geringfügig in Form einer Kugelkalotte ausgeformt, deren Oberfläche der Mantelfläche 9 der Gelenkschale 7 angepaßt ist.The jacket surface 9 of the joint shell 7 is spherical. For the play-free mounting of the joint shell 7 on the spherical end face 5 of the pin 4, a leaf spring 10 is provided, which sits on the one hand with a cylindrical collar 11 on the end of the piston of the hydraulic play compensation element 2 and is fastened there by rolling into a circumferential groove, while on the other hand has a bow-like leg 12, which has a circular bore, with the edge of which it rests on the spherical lateral surface 9 and thereby ensures play-free contact between the spherical cap 6 and the spherical end surface 5. The edge of the circular bore is slightly shaped to form a contact surface in the form of a spherical cap, the surface of which is adapted to the outer surface 9 of the joint shell 7.

In Figur 2 ist eine Ausführung dargestellt, wie sie bei Motoren mit manueller Spieleinstellung angewendet werden kann. Dabei weist der Kipphebel 13 eine Bohrung 14 auf, in welche eine Verlängerung 15 des Zapfens 4 eingesetzt ist. Der Zapfen 4 steht hier wie auch beim vorher beschriebenen Beispiel in Kontakt mit der Gelenkschale 7, die in diesem Falle jedoch keine ballige Mantelfläche besitzt. Sie weist vielmehr an ihren der Kugelkalotte des Zapfens 4 benachbarten Ende einen Radial­flansch 16 auf, gegen dessen dem Zapfen 4 abgekehrte Radialfläche 17 der erste Schenkel 18 der Blattfeder 19 anliegt. Der zweite Schenkel 20 der Blattfeder 19 ist eingebettet einerseits zwischen eine Planfläche des Kipphebels 13 und andererseits eine Radialfläche 21 eines Radialflansches 22, welcher an dem Zapfen 4 im Abstand von dessen balliger Stirnfläche angeordnet ist.FIG. 2 shows an embodiment of the type that can be used in motors with manual play adjustment. The rocker arm 13 has a bore 14 into which an extension 15 of the Pin 4 is inserted. The pin 4 is here, as in the example described above, in contact with the joint shell 7, which in this case, however, has no spherical surface. Rather, it has at its end adjacent to the spherical cap of the pin 4 a radial flange 16, against whose radial surface 17 facing away from the pin 4 the first leg 18 of the leaf spring 19 bears. The second leg 20 of the leaf spring 19 is embedded on the one hand between a flat surface of the rocker arm 13 and on the other hand a radial surface 21 of a radial flange 22 which is arranged on the pin 4 at a distance from its spherical end face.

Die Figur 2 läßt erkennen, daß der Schenkel 18 der Blattfeder 19 bei dieser Ausführung derart außermittig an der Radialfläche 17 des Radial­flansches 16 angreift, daß dadurch die Gelenkschale 7 um einen solchen Winkelbetrag gegenüber der Längsachse des Zapfens 4 geschwenkt wird, daß ihre Planfläche 8 parallel zur Stirnfläche des Ventilschaftes 3 verläuft. Dadurch wird sichergestellt, daß beim Aufsetzen der Gelenk­schale 7 auf den Ventilschaft 3 keine zusätzliche verschleißfördernde Kippbewegung der Gelenkschale erforderlich ist.Figure 2 shows that the leg 18 of the leaf spring 19 in this embodiment acts so eccentrically on the radial surface 17 of the radial flange 16 that the joint shell 7 is pivoted by such an angular amount relative to the longitudinal axis of the pin 4 that its flat surface 8 parallel runs to the end face of the valve stem 3. This ensures that when the joint shell 7 is placed on the valve stem 3, no additional wear-promoting tilting movement of the joint shell is required.

Die in den Figuren 3 und 4 dargestellte Variante entspricht im wesentlichen der Ausführung nach Figur 2. Die Figuren 3 und 4 lassen erkennen, daß der zweite Schenkel 20 der Blattfeder 19 die Verlängerung 15 des Zapfens 4 gabelartig umgreift und daß die Enden 23 der Gabelarme so abgewinkelt sind, daß sie den Radialflansch 22 hintergreifen und damit ein Abrutschen der Blattfeder vermeiden.The variant shown in Figures 3 and 4 corresponds essentially to the embodiment of Figure 2. Figures 3 and 4 show that the second leg 20 of the leaf spring 19 surrounds the extension 15 of the pin 4 fork-like and that the ends 23 of the fork arms so are angled so that they engage behind the radial flange 22 and thus prevent the leaf spring from slipping.

Die in den Figuren 5 und 6 dargestellte Variante entspricht in ihrem Gesamtaufbau weitgehend der. Ausführung nach Figur 1, während die Befestigung der Blattfeder weitgehend den Figuren 3 und 4 entspricht.The variant shown in FIGS. 5 and 6 largely corresponds to the overall structure. Design according to Figure 1, while the attachment of the leaf spring largely corresponds to Figures 3 and 4.

Während bei den bisher beschriebenen Ausführungsbeispielen das Feder­element jeweils als Blattfeder ausgebildet war, zeigen die Figuren 7 und 8 Konstruktionen, bei welchen das Federelement aus Runddraht geformt ist. Ansonsten entspricht auch diese Konstruktion in ihrem Grundaufbau den vorher beschriebenen Ausführungsbeispielen.While in the previously described exemplary embodiments the spring element was designed as a leaf spring, FIGS. 7 and 8 show constructions in which the spring element is formed from round wire. Otherwise, this construction also corresponds in its basic structure to the previously described exemplary embodiments.

In den Figuren 9 und 10 ist eine weitere Variante dargestellt, die sich dadurch von den vorhergehenden unterscheidet, daß bei ihr die Planfläche 8 der Gelenkschale 7, mit der diese gegen den Ventilschaft 3 anliegt, einen größeren Durchmesser aufweist, als der Ventilschaft 3. Die beiden Schenkel 18 der an ihrem Ende gegabelten Blattfeder 19 liegen zu beiden Seiten des Ventilschaftes 3 gegen den diesen überragenden Bereich der Planfläche 8 an und halten so die Gelenkschale 7 in Kontakt mit der balligen Stirnfläche des Zapfens 4.FIGS. 9 and 10 show a further variant, which differs from the previous one in that the flat surface 8 of the joint shell 7, with which it rests against the valve stem 3, has a larger diameter than the valve stem 3 Both legs 18 of the leaf spring 19 bifurcated at their ends abut on both sides of the valve stem 3 against the region of the flat surface 8 which projects beyond them and thus hold the joint shell 7 in contact with the spherical end surface of the pin 4.

Claims (8)

1. Zwischen einen Kipphebel und einen Ventilschaft eines Verbrennungs­motors eingeschaltetes Kugelgelenk, bestehend aus einem mit dem Kipp­hebel zusammenwirkenden Zapfen mit balliger Stirnfläche, die mit einer Kugelkalotte einer Gelenkschale zusammenwirkt, welche an ihrer der Kugelkalotte gegenüberliegenden Seite eine Planfläche aufweist, mit der sie gegen den Ventilschaft anliegt, wobei von dem Zapfen oder einem mit diesem verbundenen Bauteil ein Halteelement ausgeht, das die Ge­lenkschale derart hintergreift, daß diese verliersicher am Zapfen gehalten ist, dadurch gekennzeichnet, daß das Halteelement als Federelement (10, 19) ausgebildet ist, das unter elastischer Vorspannung an der Gelenkschale (7) anliegt und so die ballige Stirnfläche (5) des Zapfens (4) in spielfreier Anlage in der Kugelkalotte (6) hält.1. Between a rocker arm and a valve stem of an internal combustion engine, a ball joint, consisting of a cooperating with the rocker arm pin with a spherical end face, which cooperates with a spherical cap of a joint shell, which on its side opposite the spherical cap has a flat surface with which it acts against the valve stem abuts, with the pin or a component connected to it starting from a holding element which engages behind the joint shell in such a way that it is held captively on the pin, characterized in that the holding element is designed as a spring element (10, 19) which is under elastic prestress bears against the joint shell (7) and thus holds the spherical end face (5) of the pin (4) in play-free contact in the spherical cap (6). 2. Kugelgelenk nach Anspruch 1, dadurch gekennzeichnet, daß die Mantel­fläche (9) der Gelenkschale (7) so ballig ausgebildet ist, daß sie an dem der Kugelkalotte (6) benachbartem Ende einen größeren Außendurchmesser aufweist, als an dem der Planfläche (8) benachbarten Ende, und daß das Federelement (10, 19) eine Kreisbohrung aufweist, mit deren Rand es an der balligen Mantelfläche (9) anliegt.2. Ball joint according to claim 1, characterized in that the outer surface (9) of the joint shell (7) is spherical so that it has a larger outer diameter at the end adjacent to the spherical cap (6) than at that of the flat surface (8) adjacent end, and that the spring element (10, 19) has a circular bore, with the edge of which it rests on the spherical surface (9). 3. Kugelgelenk nach Anspruch 2, dadurch gekennzeichnet, daß der Rand der Kreisbohrung zur Bildung einer Anlagefläche geringfügig in Form einer Kugelkalotte ausgeformt ist.3. Ball joint according to claim 2, characterized in that the edge of the circular bore is slightly shaped in the form of a spherical cap to form a contact surface. 4. Kugelgelenk nach Anspruch 1, dadurch gekennzeichnet, daß die Gelenkschale (7) an ihrem der Kugelkalotte (6) benachbarten Ende einen Radialflansch (16) aufweist, gegen dessen dem Zapfen 4 abgekehrte Radialfläche (17) die Blattfeder (19) anliegt.4. Ball joint according to claim 1, characterized in that the joint shell (7) at its end adjacent to the spherical cap (6) Radial flange (16), against whose radial surface facing away from the pin 4 (17), the leaf spring (19) rests. 5. Kugelgelenk nach Anspruch 1, dadurch gekennzeichnet, daß die Plan­fläche (8) der Gelenkschale (7), mit der sie gegen den Ventilschaft (3) an­liegt, einen größeren Durchmesser als der Ventilschaft (3) aufweist und der gegabelte Schenkel (18) der Blattfeder (19) gegen den den Ventilschaft (3) radial überragenden Bereich der Planfläche (8) anliegt.5. Ball joint according to claim 1, characterized in that the flat surface (8) of the joint shell (7) with which it rests against the valve stem (3) has a larger diameter than the valve stem (3) and the forked leg (18) the leaf spring (19) bears against the region of the flat surface (8) which projects radially beyond the valve stem (3). 6. Kugelgelenk nach einem der vorhergehenden Ansprüche, dadurch ge­kennzeichnet, daß das Federelement (10, 19) als im wesentlichen U-förmiger Bügel ausgebildet ist, dessen erster Schenkel (18) gegen die Gelenkschale (7) drückt, während sein zweiter Schenkel (20) an dem Zapfen (4) befestigt ist.6. Ball joint according to one of the preceding claims, characterized in that the spring element (10, 19) is designed as a substantially U-shaped bracket, the first leg (18) presses against the joint shell (7), while its second leg (20th ) is attached to the pin (4). 7. Kugelgelenk nach Anspruch 6, dadurch gekennzeichnet, daß der Zapfen (4) im Abstand von der balligen Stirnfläche (5) einen Radialflansch (22) aufweist, gegen dessen der balligen Stirnfläche (5) abgekehrte Radialfläche (21) der zweite Schenkel (20) des Bügels anliegt.7. Ball joint according to claim 6, characterized in that the pin (4) at a distance from the spherical end face (5) has a radial flange (22) against which the spherical end face (5) facing away from the radial surface (21) of the second leg (20th ) of the bracket. 8. Kugelgelenk nach einem der vorhergehenden Ansprüche, dadurch ge­kennzeichnet, daß das Federelement (19) so geformt ist und/oder an einer solchen Stelle der Gelenkschale (7) anliegt, daß diese um einen solchen Winkelbetrag gegenüber der Längsachse des Zapfens (4) geschwenkt ist, daß ihre Planfläche (8) parallel zur Stirnfläche des Ventilschaftes (3) ver­läuft.8. Ball joint according to one of the preceding claims, characterized in that the spring element (19) is shaped and / or at such a point of the joint shell (7) that it is pivoted by such an angular amount relative to the longitudinal axis of the pin (4) is that its flat surface (8) runs parallel to the end face of the valve stem (3).
EP88110594A 1987-07-30 1988-07-02 Ball joint placed between a rocker arm and a valve shaft in an internal-combustion engine Expired - Lifetime EP0301267B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3725245 1987-07-30
DE19873725245 DE3725245A1 (en) 1987-07-30 1987-07-30 BALL JOINT WHICH IS ON BETWEEN A ROCKER ARM AND A VALVE STOVE OF AN INTERNAL COMBUSTION ENGINE

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EP0301267A1 true EP0301267A1 (en) 1989-02-01
EP0301267B1 EP0301267B1 (en) 1991-12-11

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EP88110594A Expired - Lifetime EP0301267B1 (en) 1987-07-30 1988-07-02 Ball joint placed between a rocker arm and a valve shaft in an internal-combustion engine

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US (1) US4856468A (en)
EP (1) EP0301267B1 (en)
JP (1) JPH0686805B2 (en)
AU (1) AU598673B2 (en)
BR (1) BR8803765A (en)
DE (2) DE3725245A1 (en)
ES (1) ES2028194T3 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2237858A (en) * 1989-11-11 1991-05-15 Gen Motors Luxembourg Operatio Valve-lash adjustment system.
EP0688981A1 (en) * 1994-06-21 1995-12-27 Cummins Engine Company, Inc. Elephant's foot adjusting screw assembly for internal combustion
EP0758046A1 (en) * 1995-08-07 1997-02-12 HY-LIFT Division of SPX Corporation Hydraulic lash compensating element assembly
WO2008002746A2 (en) * 2006-06-26 2008-01-03 Timken Us Corporation Coupling device
WO2009005774A1 (en) * 2007-06-29 2009-01-08 Caterpillar Inc. Variable valve actuator having self-centering pivotal piston
WO2009038935A1 (en) * 2007-09-18 2009-03-26 The Timken Company Coupling device
EP2462322A1 (en) * 2009-08-04 2012-06-13 International Engine Intellectual Property Company, LLC Bridge and pivot foot arrangement for operating engine cylinder valves

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DE4444481A1 (en) * 1994-12-14 1996-06-20 Schaeffler Waelzlager Kg Tappet with a hydraulic valve lash adjuster
DE19505406A1 (en) * 1995-02-17 1996-08-22 Schaeffler Waelzlager Kg Hydraulic tappet adjustment e.g. for IC engine
DE19537641A1 (en) * 1995-10-10 1997-04-17 Bayerische Motoren Werke Ag Point bearing tappet for IC-engine valve
US5680838A (en) * 1996-10-21 1997-10-28 General Motors Corporation Swivel foot lash adjuster
US5706771A (en) * 1996-12-23 1998-01-13 General Motors Corporation Hydraulic element assembly
US5709181A (en) * 1997-02-06 1998-01-20 General Motors Corporation Rocker arm assembly
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US6138624A (en) * 1999-03-01 2000-10-31 Cummins Engine Company, Inc. Tappet socket assembly for rocker lever assembly and method of assembling the same
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GB2237858A (en) * 1989-11-11 1991-05-15 Gen Motors Luxembourg Operatio Valve-lash adjustment system.
US5022361A (en) * 1989-11-11 1991-06-11 General Motors Corporation Valve-lash adjustment system
EP0688981A1 (en) * 1994-06-21 1995-12-27 Cummins Engine Company, Inc. Elephant's foot adjusting screw assembly for internal combustion
EP0758046A1 (en) * 1995-08-07 1997-02-12 HY-LIFT Division of SPX Corporation Hydraulic lash compensating element assembly
WO2008002746A2 (en) * 2006-06-26 2008-01-03 Timken Us Corporation Coupling device
WO2008002746A3 (en) * 2006-06-26 2008-02-28 Timken Us Corp Coupling device
WO2009005774A1 (en) * 2007-06-29 2009-01-08 Caterpillar Inc. Variable valve actuator having self-centering pivotal piston
US7789052B2 (en) 2007-06-29 2010-09-07 Caterpillar Inc. Variable valve actuator having self-centering pivotal piston
WO2009038935A1 (en) * 2007-09-18 2009-03-26 The Timken Company Coupling device
EP2462322A1 (en) * 2009-08-04 2012-06-13 International Engine Intellectual Property Company, LLC Bridge and pivot foot arrangement for operating engine cylinder valves
EP2462322A4 (en) * 2009-08-04 2013-06-05 Int Engine Intellectual Prop Bridge and pivot foot arrangement for operating engine cylinder valves

Also Published As

Publication number Publication date
AU1662088A (en) 1989-02-02
AU598673B2 (en) 1990-06-28
JPH0686805B2 (en) 1994-11-02
ES2028194T3 (en) 1992-07-01
BR8803765A (en) 1989-02-21
EP0301267B1 (en) 1991-12-11
DE3725245A1 (en) 1989-02-09
JPS6453007A (en) 1989-03-01
DE3866814D1 (en) 1992-01-23
US4856468A (en) 1989-08-15

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