EP0382911B1 - Actuation device for a motor vehicle clutch - Google Patents

Actuation device for a motor vehicle clutch Download PDF

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Publication number
EP0382911B1
EP0382911B1 EP89122255A EP89122255A EP0382911B1 EP 0382911 B1 EP0382911 B1 EP 0382911B1 EP 89122255 A EP89122255 A EP 89122255A EP 89122255 A EP89122255 A EP 89122255A EP 0382911 B1 EP0382911 B1 EP 0382911B1
Authority
EP
European Patent Office
Prior art keywords
pedal
bearing
lever arm
spring
connecting lid
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP89122255A
Other languages
German (de)
French (fr)
Other versions
EP0382911A1 (en
Inventor
Hans Uwe Dipl.-Ing. Baumann (Fh)
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.)
Dr Ing HCF Porsche AG
Original Assignee
Dr Ing HCF Porsche AG
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 Dr Ing HCF Porsche AG filed Critical Dr Ing HCF Porsche AG
Publication of EP0382911A1 publication Critical patent/EP0382911A1/en
Application granted granted Critical
Publication of EP0382911B1 publication Critical patent/EP0382911B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G1/00—Controlling members, e.g. knobs or handles; Assemblies or arrangements thereof; Indicating position of controlling members
    • G05G1/30—Controlling members actuated by foot
    • G05G1/46—Means, e.g. links, for connecting the pedal to the controlled unit
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G5/00—Means for preventing, limiting or returning the movements of parts of a control mechanism, e.g. locking controlling member
    • G05G5/03—Means for enhancing the operator's awareness of arrival of the controlling member at a command or datum position; Providing feel, e.g. means for creating a counterforce
    • 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
    • Y10T74/20528—Foot operated
    • 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
    • Y10T74/20558—Variable output force
    • Y10T74/2057—Variable input leverage

Definitions

  • the invention relates to an actuating device for a motor vehicle clutch according to the preamble of claim 1.
  • a force support is obtained with a relatively large pivoting angle of the pedal due to the lever arm that is formed, which only occurs after the dead center position has been exceeded increases slightly.
  • a clutch pedal with a support spring is known from GB-A-826 459, which is attached on the one hand to the pedal and on the other hand to a bearing block of the vehicle body.
  • the object of the invention is to provide a fastening device of the type characterized in the preamble of claim 1, which causes a steep increase in power assistance after the dead center position has been exceeded.
  • the stored spring force from the tension spring acts as a support moment on the pedal, in particular when it is actuated in a disengaged position.
  • This support results after going through the Dead center position a steep response, which is essentially achieved by the arrangement and storage of the push rod and the tension spring. So the push rod can pivot around the bearing point on the lever arm of the pedal and the spring around its fixed point on the body with the push rod. Even in the case of a small pivoting angle of the pedal, this advantageously brings about an abruptly increasing support torque.
  • the actuating device achieves a quick response behavior with a steeply increasing support torque and good tunability when using a few simple components.
  • the actuating device for a clutch consists essentially of a clutch pedal 1 with pedal plate 2, which is articulated about a pivot axis 3 on the vehicle body 4.
  • the pedal 1 has a protruding lever arm 5 which is connected via a bearing point formed by a pivot bearing 6 to a push rod 7, on which a tension spring 10 articulated on the vehicle body 4 in a fixed point 9 is held in an opposite bearing 8.
  • the push rod 7 consists of a U-shaped bracket, the legs 13, 14 of which have the bearings 6 and 8, respectively. Between these legs 13, 14, the spring 10 is arranged embedded.
  • the bearing 6 of the push rod 7 on the lever arm 5 is arranged with the smallest possible distance a from the fixed point 9 of the tension spring 10. As can be seen in more detail in FIG. 1, the distance a corresponds approximately to half the width b of the lever arm 5.
  • the push rod 7 pivots with the pedal 1 in the direction of the arrow 15 around the bearing 6 and the tension spring 10 around the fixed point 9, which contracts during this process.
  • position B of the push rod 7 the end position of the pedal 1 is reached, the support lever arm having reached its maximum value and an action line 16 extending at an acute angle ⁇ to the action line 11.
  • FIG. 3 shows the course of the line of action between the pedal position with the clutch disengaged and the clutch engaged.
  • the line of action 11 when the clutch is engaged causes a lever arm 17, by means of which a restoring torque of the pedal 1 for holding in the rest position is generated.
  • the pedal 1 is actuated in the direction of the arrow 15, the line of action 11 passes through the bearing 3 of the pedal 1 and establishes a dead center position with a line of action 11a.
  • a line of action 16a for example, generates a support moment for the pedal 1 via the lever arm 18, which increases as a function of the pivoting angle of the pedal 1 in the direction of the arrow 15 and its maximum value with the line of action 16 and can reach the lever arm 19.
  • the course of the support torque over the pedal travel results from the coordination of the kinematics and the spring characteristics, so that, as described above, the maximum value can also be reached before the line of action and with the line of action 16 there is even a lower support torque.

Description

Die Erfindung bezieht sich auf eine Betätigungseinrichtung für eine Kraftfahrzeugkupplung nach dem Oberbegriff des Anspruchs 1.The invention relates to an actuating device for a motor vehicle clutch according to the preamble of claim 1.

Aus der DE-B-11 52 896 ist eine Betätigungseinrichtung für Kraftfahrzeugkupplungen bekannt, bei der das Pedal unter der Wirkung einer vorgespannten Zugfeder steht, die je nach der Lage des Pedals über eine Druckstange eine Kraftunterstützung bewirkt. Bei in Ruhelage befindlichem Kupplungspedal übt die Feder eine das Pedal in dieser Lage haltende Rückstellkraft aus und bei Betätigen des Pedals sowie nach Überschreiten einer Totpunktstellung gibt die Feder eine die Fußkraft unterstützende Kraft ab. Durch die Festlegung des einen Endes der Druckstange mit der Feder am Fahrzeugaufbau sowie des relativ großen Abstands dieser Lagerpunkte zum vorderen Lagerpunkt der Druckstange am Pedal ergibt sich bei einem relativ großem Schwenkwinkel des Pedals durch den sich bildenden Hebelarm eine Kraftunterstützung, die nach Überschreiten der Totpunktstellung nur schwach ansteigt. Desweiteren ist aus der GB-A-826 459 ein Kupplungspedal mit einer Unterstützungsfeder bekannt, die einerseits am Pedal und andererseits an einem Lagerbock des Fahrzeugaufbaus befestigt ist. Bei ausgerückter Kupplung verläuft die Wirkungslinie der Feder vor dem Pedallager und bei eingerückter Kupplung hinter dem Pedallager, so daß eine unterstützende Wirkung auf das Pedal beim Betätigen in eine ausgerückte Stellung der Kupplung erzielt wird.From DE-B-11 52 896 an actuating device for motor vehicle clutches is known in which the pedal is under the action of a prestressed tension spring which, depending on the position of the pedal, causes a force support via a push rod. When the clutch pedal is in the rest position, the spring exerts a restoring force that holds the pedal in this position, and when the pedal is actuated and after a dead center position is exceeded, the spring releases a force that supports the foot force. By defining one end of the push rod with the spring on the vehicle body and the relatively large distance of these bearing points from the front bearing point of the push rod on the pedal, a force support is obtained with a relatively large pivoting angle of the pedal due to the lever arm that is formed, which only occurs after the dead center position has been exceeded increases slightly. Furthermore, a clutch pedal with a support spring is known from GB-A-826 459, which is attached on the one hand to the pedal and on the other hand to a bearing block of the vehicle body. When the clutch is disengaged, the line of action of the spring runs in front of the pedal bearing and when the clutch is engaged behind the pedal bearing, so that a supportive effect on the pedal is achieved when the clutch is disengaged.

Aufgabe der Erfindung ist es eine Befestigungseinrichtung der im Oberbegriff des Anspruchs 1 gekennzeichneten Art zu schaffen, die nach Überschreiten der Totpunktstellung einen steilen Anstieg der Kraftunterstützung bewirkt.The object of the invention is to provide a fastening device of the type characterized in the preamble of claim 1, which causes a steep increase in power assistance after the dead center position has been exceeded.

Diese Aufgabe wird erfindungsgemäß durch die kennzeichnenden Merkmale des Anspruchs 1 gelöst. Weitere vorteilhafte Merkmale beinhalten die Unteransprüche.This object is achieved by the characterizing features of claim 1. The dependent claims contain further advantageous features.

Die mit der Erfindung hauptsächlich erzielten Vorteile bestehen darin, daß die gespeicherte Federkraft aus der Zugfeder als Unterstützungsmoment auf das Pedal insbesondere dann wirkt, wenn es in eine ausgerückte Stellung betätigt wird. Diese Unterstützung bewirkt nach Durchlaufen der Totpunktstellung ein steiles Ansprechverhalten, was im wesentlichen durch die Anordnung und Lagerung der Druckstange sowie der Zugfeder erzielt wird. So kann die Druckstange um den Lagerpunkt am Hebelarm des Pedals und die Feder um ihren aufbauseitigen Festpunkt mit der Druckstange verschwenken. Dies bewirkt schon bei einem geringen Verschwenkwinkel des Pedals in vorteilhafter Weise ein sich sprunghaft vergrößerndes Unterstützungsmoment. Diese Wirkung wird noch verstärkt durch die im geringstmöglichen Abstand zueinander angeordneten Lagerpunkte der Druckstange am Hebelarm und der Zugfeder am Fahrzeugaufbau 10, daß die Kraftwirkungslinie, deren Verlauf durch die Lagerpunkte vorgegeben ist, sich entsprechend dem Verschwenkwinkel des Pedals ausbildet und ein größerer Hebelarm einstellt.The main advantages achieved with the invention are that the stored spring force from the tension spring acts as a support moment on the pedal, in particular when it is actuated in a disengaged position. This support results after going through the Dead center position a steep response, which is essentially achieved by the arrangement and storage of the push rod and the tension spring. So the push rod can pivot around the bearing point on the lever arm of the pedal and the spring around its fixed point on the body with the push rod. Even in the case of a small pivoting angle of the pedal, this advantageously brings about an abruptly increasing support torque. This effect is further enhanced by the bearing points of the push rod on the lever arm and the tension spring on the vehicle body 10, which are arranged as close as possible to one another, that the line of action of force, the course of which is predetermined by the bearing points, is formed in accordance with the pivoting angle of the pedal and a larger lever arm is set.

Zusammenfassend wird durch die Betätigungseinrichtung ein schnelles Ansprechverhalten mit einem steil ansteigenden Unterstützungsmoment und eine gute Abstimmbarkeit bei Verwendung von wenigen, einfachen Bauteilen erzielt.In summary, the actuating device achieves a quick response behavior with a steeply increasing support torque and good tunability when using a few simple components.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird im folgenden näher beschrieben.An embodiment of the invention is shown in the drawing and will be described in more detail below.

Es zeigen

Fig. 1
eine Betätigungseinrichtung für eine Kupplung in einer Seitenansicht bei eingerückter Kupplung,
Fig. 2
die Betätigungseinrichtung in den beiden Endstellungen bei eingerückter (durchgezeichnete Linien) und bei ausgerückter Stellung (strichpunktierte Linien) und
Fig. 3
eine Darstellung über den Verlauf der Kraftwirkungslinien zwischen eingerückter und ausgerückter Stellung der Kupplung.
Show it
Fig. 1
an actuating device for a clutch in a side view with the clutch engaged,
Fig. 2
the actuating device in the two end positions with indented (solid lines) and with disengaged position (dash-dotted lines) and
Fig. 3
a representation of the course of the lines of force between the engaged and disengaged position of the clutch.

Die Betätigungseinrichtung für eine nicht näher dargestellte Kupplung besteht im wesentlichen aus einem Kupplungspedal 1 mit Pedalplatte 2, welches um eine Schwenkachse 3 am Fahrzeugaufbau 4 angelenkt ist. Das Pedal 1 weist einen hinausragenden Hebelarm 5 auf, der über einen von einem Schwenklager 6 gebildeten Lagerpunkt mit einer Druckstange 7 verbunden ist, an welcher in einem gegenüberliegenden Lager 8 eine am Fahrzeugaufbau 4 in einem Festpunkt 9 angelenkte Zugfeder 10 gehalten ist.The actuating device for a clutch, not shown in detail, consists essentially of a clutch pedal 1 with pedal plate 2, which is articulated about a pivot axis 3 on the vehicle body 4. The pedal 1 has a protruding lever arm 5 which is connected via a bearing point formed by a pivot bearing 6 to a push rod 7, on which a tension spring 10 articulated on the vehicle body 4 in a fixed point 9 is held in an opposite bearing 8.

Wie Fig. 1 näher zeigt, nimmt die Druckstange 7 in der eingerückten Stellung A der Kupplung eine solche Lage ein, daß eine Kraftwirkungslinie 11, welche durch die Lager 6 und 8 sowie durch den Festpunkt 9 der Feder 10 verläuft, eine Rückstellung des Pedals 1 in Pfeilrichtung 12 bewirkt.1 shows, in the engaged position A of the clutch, the push rod 7 assumes such a position that a line of force 11, which runs through the bearings 6 and 8 and through the fixed point 9 of the spring 10, resets the pedal 1 effected in the direction of arrow 12.

Die Druckstange 7 besteht aus einem U-förmigen Bügel, dessen Schenkel 13, 14 jeweils die Lager 6 und 8 aufweisen. Zwischen diesen Schenkeln 13, 14 ist die Feder 10 eingebettet angeordnet.The push rod 7 consists of a U-shaped bracket, the legs 13, 14 of which have the bearings 6 and 8, respectively. Between these legs 13, 14, the spring 10 is arranged embedded.

Das Lager 6 der Druckstange 7 am Hebelarm 5 ist mit einem geringstmöglichen Abstand a zum Festpunkt 9 der Zugfeder 10 angeordnet. Wie in Fig. 1 näher zu erkennen ist, entspricht der Abstand a etwa der halben Breite b des Hebelarmes 5.The bearing 6 of the push rod 7 on the lever arm 5 is arranged with the smallest possible distance a from the fixed point 9 of the tension spring 10. As can be seen in more detail in FIG. 1, the distance a corresponds approximately to half the width b of the lever arm 5.

Beim Betätigen des Kupplungspedals 1 aus der Grundstellung gemäß Fig. 1 in Pfeilrichtung 15 zum Ausrücken der Kupplung wird die Lage der Kraftwirkungslinie 11 verändert, wodurch sich ein vergrößerndes Unterstützungsmoment auf das Pedal 1 einstellt.When the clutch pedal 1 is actuated from the basic position according to FIG. 1 in the direction of arrow 15 to disengage the clutch, the position of the force action line 11 is changed, as a result of which an increasing support torque for the pedal 1 is set.

Wie Fig. 2 zeigt, verschwenkt sich mit dem Pedal 1 in Pfeilrichtung 15 auch die Druckstange 7 um das Lager 6 sowie die Zugfeder 10 um den Festpunkt 9, welche sich bei diesem Vorgang zusammenzieht. In der Stellung B der Druckstange 7 ist die Endstellung des Pedals 1 erreicht, wobei der Unterstützungshebelarm seinen maximalen Wert erreicht hat und eine Wirkungslinie 16 unter einem spitzen Winkel α zur Wirkungslinie 11 verläuft.As shown in FIG. 2, the push rod 7 pivots with the pedal 1 in the direction of the arrow 15 around the bearing 6 and the tension spring 10 around the fixed point 9, which contracts during this process. In position B of the push rod 7, the end position of the pedal 1 is reached, the support lever arm having reached its maximum value and an action line 16 extending at an acute angle α to the action line 11.

In Fig. 3 ist der Verlauf der Wirkungslinie zwischen der Pedalstellung bei ausgerückter Kupplung und eingerückter Kupplung gezeigt. Die Wirkungslinie 11 bei eingerückter Kupplung bewirkt einen Hebelarm 17, durch den ein Rückstellmoment des Pedals 1 zur Haltung in der Ruhelage erzeugt wird. Beim Betätigen des Pedals 1 in Pfeilrichtung 15 durchläuft die Wirkungslinie 11 das Lager 3 des Pedals 1 und stellt eine Totpunktstellung mit einer Wirkungslinie 11a her. Nach Durchlaufen dieser Stellung erzeugt z.B. eine Wirkungslinie 16a über den Hebelarm 18 ein Unterstützungsmoment des Pedals 1, das in Abhängigkeit von dem Verschwenkwinkel des Pedals 1 in Pfeilrichtung 15 anwächst und seinen Höchstwert mit der Wirkungslinie 16 und dem Hebelarm 19 erreichen kann. Der Verlauf des Unterstützungsmomentes über dem Pedalweg ergibt sich aus der Abstimmung der Kinematik und der Federkennwerte, so daß wie vorstehend beschrieben, der Höchstwert auch schon vor der Wirkungslinie erreichbar ist und mit der Wirkungslinie 16 sich sogar ein geringeres Unterstützungsmoment einstellt.3 shows the course of the line of action between the pedal position with the clutch disengaged and the clutch engaged. The line of action 11 when the clutch is engaged causes a lever arm 17, by means of which a restoring torque of the pedal 1 for holding in the rest position is generated. When the pedal 1 is actuated in the direction of the arrow 15, the line of action 11 passes through the bearing 3 of the pedal 1 and establishes a dead center position with a line of action 11a. After passing through this position, a line of action 16a, for example, generates a support moment for the pedal 1 via the lever arm 18, which increases as a function of the pivoting angle of the pedal 1 in the direction of the arrow 15 and its maximum value with the line of action 16 and can reach the lever arm 19. The course of the support torque over the pedal travel results from the coordination of the kinematics and the spring characteristics, so that, as described above, the maximum value can also be reached before the line of action and with the line of action 16 there is even a lower support torque.

Bei einem Verschwenken des Pedals 1 in Pfeilrichtung 15 bewegt sich die Druckstange 7 in Abhängigkeit von dieser Pedalbewegung auf einem Bogen 20 in der Weise, daß die Wirkungslinie immer durch die Lagerpunkte 6, 8 und 9 verläuft. Bei einem "Loslassen" des Pedals 1 und einem Verschwenken in Pfeilrichtung 12 stellt sich das Pedal 1 sowie die Druckstange 7 mit Feder 10 in die Grundstellung A zurück.When the pedal 1 is pivoted in the direction of the arrow 15, the push rod 7 moves as a function of this pedal movement on an arc 20 in such a way that the line of action always runs through the bearing points 6, 8 and 9. When the pedal 1 is “released” and swiveled in the direction of the arrow 12, the pedal 1 and the push rod 7 with the spring 10 return to the basic position A.

Claims (3)

  1. An actuating device for a clutch of a motor vehicle with a pedal (1) acted upon by a pre-stressed tension spring (10) articulated at one end in a fixed point (9) on the body and at the other end in a bearing (8) of a connecting lid (7) mounted in a bearing point (6) of a lever arm (5) of the pedal (1), and the tension spring (10) exerts a restoring force holding the pedal (1) in a rest position and when actuated delivers a force supporting the force of the foot alter passing a dead-centre position, the connecting lid (7) being held pivotably in the bearing point (6) of the lever arm (5) and the line of action of force (11) passing through the fixed point (9) of the tension spring (10) on the body and through the centre of the bearing (6) of the connecting lid (7), characterized in that the fixed point (9) of the spring (10) is situated at a distance (a) from the centre of the bearing (6) of the connecting lid (7), the distance (a) corresponding to substantially half the width (b) of the lever arm (5).
  2. An actuating device according to Claim 1, characterized in that the connecting lid (7) is articulated in the bearing (6) on the lever arm (5), the bearing (6) being situated at the smallest possible distance a from the fixed point (9) of the tension spring (10) on the body.
  3. An actuating device according to one of the preceding Claims, characterized in that the connecting lid (7) is formed by a U-shaped yoke, the arms (13, 14) of which have the mountings (6 and 8), and the spring (10) is received between the arms (13, 14).
EP89122255A 1989-02-17 1989-12-02 Actuation device for a motor vehicle clutch Expired - Lifetime EP0382911B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3904837 1989-02-17
DE3904837A DE3904837A1 (en) 1989-02-17 1989-02-17 ACTUATING DEVICE FOR A MOTOR VEHICLE CLUTCH

Publications (2)

Publication Number Publication Date
EP0382911A1 EP0382911A1 (en) 1990-08-22
EP0382911B1 true EP0382911B1 (en) 1993-05-12

Family

ID=6374324

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89122255A Expired - Lifetime EP0382911B1 (en) 1989-02-17 1989-12-02 Actuation device for a motor vehicle clutch

Country Status (4)

Country Link
US (1) US5038907A (en)
EP (1) EP0382911B1 (en)
DE (2) DE3904837A1 (en)
ES (1) ES2041949T3 (en)

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US6186025B1 (en) 1999-03-24 2001-02-13 Teleflex, Inc. Break away pedal
DE19934238C1 (en) * 1999-07-21 2001-01-25 Fte Automotive Gmbh Device for actuating a clutch, in particular for motor vehicles
KR100316950B1 (en) * 1999-08-10 2001-12-22 이계안 structure for supporting brake pedal of a vehicle
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DE10011760A1 (en) * 2000-03-10 2001-09-13 Audi Ag Device for actuating operating device in vehicle has linkage joined to pedal and connected to pivotable element at other end, whereby spring engages linkage between joint positions
DE10104665A1 (en) * 2001-02-02 2002-08-22 Zf Sachs Ag declutching
US7503235B2 (en) * 2004-05-14 2009-03-17 Intier Automotive Closures Inc. Pedal assembly
FR2918142B1 (en) * 2007-06-27 2009-09-11 Renault Sas DEVICE FOR ASSISTING THE ACTUATION OF A CLUTCH PEDAL.
US8650984B2 (en) * 2011-03-22 2014-02-18 Ksr Technologies Co. Electronic clutch pedal assembly having varying resistance
CN107066025B (en) * 2017-06-09 2019-03-05 浙江泰鸿万立科技股份有限公司 The foot pedal of adjustable operating force
CN107132873A (en) * 2017-06-09 2017-09-05 浙江泰鸿机电有限公司 Pedal assembly with spring anti-dropping and the anti-fail safe of switch
CN113217558A (en) * 2021-05-31 2021-08-06 江苏沃得农业机械股份有限公司 Tractor clutch control power assisting mechanism and power assisting method

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DE3636748C1 (en) * 1986-10-29 1987-05-27 Daimler Benz Ag Actuating rods for a clutch

Also Published As

Publication number Publication date
ES2041949T3 (en) 1993-12-01
US5038907A (en) 1991-08-13
DE58904356D1 (en) 1993-06-17
EP0382911A1 (en) 1990-08-22
DE3904837A1 (en) 1990-08-23

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