EP2034384A2 - Pedal assembly for actuating a clutch - Google Patents
Pedal assembly for actuating a clutch Download PDFInfo
- Publication number
- EP2034384A2 EP2034384A2 EP08015172A EP08015172A EP2034384A2 EP 2034384 A2 EP2034384 A2 EP 2034384A2 EP 08015172 A EP08015172 A EP 08015172A EP 08015172 A EP08015172 A EP 08015172A EP 2034384 A2 EP2034384 A2 EP 2034384A2
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- EP
- European Patent Office
- Prior art keywords
- pedal
- lever
- pedal lever
- actuating means
- pedal assembly
- 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.)
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- 230000033001 locomotion Effects 0.000 claims abstract description 12
- 230000005540 biological transmission Effects 0.000 claims description 5
- 230000001419 dependent effect Effects 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 5
- 238000006073 displacement reaction Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 9
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Classifications
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
- G05G7/00—Manually-actuated control mechanisms provided with one single controlling member co-operating with one single controlled member; Details thereof
- G05G7/02—Manually-actuated control mechanisms provided with one single controlling member co-operating with one single controlled member; Details thereof characterised by special provisions for conveying or converting motion, or for acting at a distance
- G05G7/04—Manually-actuated control mechanisms provided with one single controlling member co-operating with one single controlled member; Details thereof characterised by special provisions for conveying or converting motion, or for acting at a distance altering the ratio of motion or force between controlling member and controlled member as a function of the position of the controlling member
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- 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
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- 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
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- 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
Definitions
- the present invention relates to a pedal assembly, in particular a clutch pedal assembly for actuating a clutch, with a variable power transmission ratio, wherein the pedal assembly comprises: a pedal lever which is rotatably mounted on a joint, and connected to the pedal lever by a sliding bearing of the pedal lever actuating means which is intended to be in operative connection with the clutch, wherein the sliding bearing is arranged on the pedal lever, that a radial movement of the actuating means is made possible with respect to the joint.
- a pedal assembly for actuating a clutch with a variable power transmission ratio
- the pedal assembly comprises: a pedal lever which is rotatably mounted on a joint, and connected to the pedal lever by a sliding bearing of the pedal lever actuating means, which is intended to be in operative connection with the clutch, wherein the sliding bearing is arranged on the pedal lever such that a radial movement of the actuating means with respect to the joint is made possible, characterized in that the actuating means is guided and supported exclusively in the plain bearing of the pedal lever and in at least one link.
- the invention has the advantage that the transmission ratio between the pedal lever and the clutch can be influenced by changing the position of the actuating means in the sliding bearing.
- the joint is preferably stationary, i. fixed to the housing with respect to a pedal assembly receiving motor vehicle arranged.
- the joint preferably has a rotational degree of freedom, as is known from the prior art used in conventional motor vehicles clutch pedals. Due to the guidance of the actuating means in the slide it is achieved that the gear ratio achieved with the pedal lever is dependent on the angular position of the pedal lever, so that influence is exerted on the force to be applied to the pedal lever for actuating the clutch. This is preferably achieved by influencing a guidance of the actuating means or by prescribing a specific guide for the actuating means.
- the scenery is designed and arranged so that the position of the actuating means in the sliding bearing of the pedal lever depends on the angular position of the pedal lever and the formation of the scenery.
- This offers the advantage that can be influenced by the selection of the shape of the slide on the position of the actuating means in the sliding bearing of the pedal lever in dependence on the angular position of the pedal lever. In this way, a force-displacement diagram can be influenced, which is decisive for the actuation of the pedal lever and thus the clutch by the pedal lever.
- the at least one link and the hinge are arranged immovable relative to each other. This is achieved particularly simply by the fact that the slide and the joint are both fixed to the housing mounted on a vehicle which is provided for receiving the pedal assembly.
- the actuating means is mounted in the sliding bearing of the pedal lever and guided in the at least one link pin.
- the storage of the actuating means in the sliding bearing of the pedal lever is preferably a rotatable mounting.
- the features mentioned offer the advantage of a simple mechanical construction for implementing a travel-dependent transmission ratio for clutch actuation.
- the pen is preferably also rotatably mounted in the scenery.
- the pin is preferably straight, resulting in a simple structure. For the storage of the pin in the backdrop can generally methods known from the prior art or bearings are used.
- the pedal assembly preferably has a further, the same setting for the first backdrop backdrop, the backdrop and the other backdrop are each arranged on opposite sides of the pedal lever. It means on opposite sides of the pedal lever that the scenes are arranged laterally of the pedal lever with respect to the direction of movement of the pedal lever. It is particularly advantageous that the scenes are arranged substantially parallel to each other or to the direction of movement of the pedal lever. This in turn offers the advantage of a particularly simple mechanical construction.
- the joint is arranged on a carrier element, and the scenes are formed in the carrier element.
- the support member may be a part of the vehicle body or a pedal receiving support member which is mounted on a vehicle body.
- the support member is a substantially U-shaped plate in which the joint is received and in which the scenes are formed in the side walls of the U-shaped support member.
- a push rod is attached to the actuator for actuating the coupling, wherein the attachment is preferably a hinged attachment.
- the actuating element as a pin results in this way a simple mechanical construction.
- the backdrop has a waveform.
- waveform means that the slide is formed so that the radial distance of the actuating means in the slide bearing to the joint on actuation of the pedal lever in one direction is first increased or decreased, and then reduced in further operation of the pedal lever in the same direction again or is enlarged. That is, the position of the actuating means moves in one direction in two different directions along the pedal lever during operation of the pedal lever. It is particularly advantageous that the position initially moves radially onto the joint during actuation of the pedal lever by a user and then moves radially away from the joint upon further actuation of the pedal lever in the same direction. This ensures that the at Vehicle clutches typical pedal load drop is reduced. Under wave form is also preferably understood that the shape of the backdrop has at least two opposite curvatures.
- the gate is designed so that a dependent on the angular position of the pedal lever, is applied to the pedal lever for actuating the clutch applied force on the angular position of the pedal lever. It means gleichierit that especially at angular positions of the pedal lever, which is applied for the operation of a particularly high force, the force is reduced by the pedal assembly according to the invention. In this way, maximum forces are reduced in the force-displacement diagram of the pedal assembly upon actuation of a clutch and also reduces the pedal load drop to a maximum force.
- the actuating means comprises a first bolt and a second bolt, which are rigidly interconnected.
- the push rod is preferably connected to the bolt located radially closer to the hinge axis.
- the first bolt and the second bolt are preferably mounted so as to be displaceable together in a cutout substantially radially relative to the hinge axis.
- the push rod is thus mounted radially further inward in the direction of the axis of rotation, so that although it completely performs the predetermined by the backdrop movement in the radial direction, but doing tangentially by the smaller distance from the axis of rotation performs a lesser motion. In this way, a greater variability of the reduction of the travel ratio pedal travel to way of the push rod can be realized.
- Fig. 1 schematically shows a first embodiment of the invention, with a pedal assembly 1, which comprises a pedal lever 2, which is articulated in a U-shaped support member 3.
- the articulated mounting via a mounted on two side cheeks of the support member 3 hinge axis 4, to which the pedal lever 2 is attached.
- the hinge axis 4 thus forms a joint for the pedal lever 2.
- the pedal lever 2 has a plain bearing 5, which is designed as a slot.
- the sliding bearing 5 is aligned in the radial direction with respect to the hinge axis 4.
- a designed as a pin actuating means 6 is rotatably mounted in the sliding bearing 5, a designed as a pin actuating means 6 is rotatably mounted. Furthermore, the actuating means 6 is guided in two scenes 7, which are formed in the side cheeks of the support member 3. The bearing of the actuating means 6 in the sliding bearing 5 and in the scenes 7 is performed by bearings 8. On the actuating means 6, a push rod 9 is fixed, which (not shown) can actuate a clutch.
- the operation of the pedal assembly 1 according to the present invention will be explained below, assuming that an operator depresses a pedal 10 disposed on the pedal lever 2 with the foot to operate the clutch.
- the actuating means 6 moves in a first region 11 of the scenes 7, wherein in this area the actuating means of the hinge axis 4 is relatively far away. Subsequently, the actuating means is displaced in the scenes 7 in a second region 12, wherein it is caused that the actuating means 6 moves closer to the hinge axis 4. If the pedal 10 is operated even further, so that the pedal lever 2 is further rotated in the clockwise direction in the image, the actuating means 6 passes into a third region 13, in which the distance of the actuating means 6 increases again to the hinge axis 4.
- This pedal assembly 1 causes a comparison with conventional pedal assemblies with a fixed lever arm a modified force-displacement diagram during depression of the pedal 10th
- Fig. 2 Assuming that a known and customary from the prior art clutch is actuated by the pedal assembly 1, are in the Fig. 2 shown two force-displacement diagrams, being in the Fig. 2 the solid line represents the force-displacement diagram, which is achieved with the pedal assembly 1 according to the invention and the dashed line in the Fig. 2 represents a force-displacement diagram, which is achieved with a conventional pedal assembly.
- Fig. 2 is on the reference numerals of Fig. 1 Reference is made, wherein like parts or portions are identified by like reference numerals.
- a movement amount of the pedal lever 2 said amount of movement is denoted by x.
- the amount of movement x may represent a curved path of the pedal 10 or an angle of the pedal lever 2.
- the Fig. 2 is entered the force F, which is required to depress the pedal 10 by the distance x.
- the amount of movement x and the force F are also schematically in the Fig. 1 shown.
- the depression of the pedal 10 again passes through the first region 11, wherein in this region in the pedal assembly 1 according to the invention, the force required for depression (solid line) is greater than the force required in a conventional pedal assembly (dashed line).
- the maximum force required to push the pedal lever 2 is attenuated in the pedal assembly 1 according to the invention, and in the third area 13 the force required to press the pedal lever 2 is increased again compared to a conventional pedal arrangement.
- the result is that the pedal load drop conventionally occurring between regions 12 and 13 is significantly reduced. Overall, the force-displacement diagram is made uniform.
- Fig. 3 shows an exploded view of a second embodiment of the invention.
- the actuating means 6 is made in two parts and comprises a first pin 14 and a second bolt 15.
- the first bolt 14 cooperates with the link 7, the second bolt 15 serves to connect the push rod 9.
- the second bolt 15 includes a screw head 16 and a thread 20, on which a lock nut 21 is turned on.
- the bolts 14 and 16 are connected to connecting plates 17 and 18, which are arranged on both sides of the pedal lever 2.
- the push rod 9 is connected via a fork 17 a with the second bolt 15.
- the fork 17a includes two holes 18a, through which the second pin 15 is passed.
- the first bolt 14 is provided on both sides with bearing rings 19. These may be, for example, plastic rings or ball bearings or the like and increase the surface and thus reduce the surface pressure and friction on the surface of the scenes 7.
- the first pin 14 and the second pin 15 are guided in an elongated cutout 22 and can be common in the longitudinal direction be moved. This is indicated by a double arrow 23.
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Arrangement And Mounting Of Devices That Control Transmission Of Motive Force (AREA)
- Mechanical Control Devices (AREA)
- Mechanical Operated Clutches (AREA)
Abstract
Description
Die vorliegende Erfindung betrifft eine Pedalanordnung, insbesondere eine Kupplungspedalanordnung zur Betätigung einer Kupplung, mit einem veränderlichen Kraftübertragungsverhältnis, wobei die Pedalanordnung umfasst: einen Pedalhebel, der drehbar an einem Gelenk gelagert ist, und ein mit dem Pedalhebel durch ein Gleitlager des Pedalhebels verbundenes Betätigungsmittel, das dazu vorgesehen ist, in Wirkverbindung mit der Kupplung zu stehen, wobei das Gleitlager so an dem Pedalhebel angeordnet ist, dass eine radiale Bewegung des Betätigungsmittels in Bezug auf das Gelenk ermöglicht wird.The present invention relates to a pedal assembly, in particular a clutch pedal assembly for actuating a clutch, with a variable power transmission ratio, wherein the pedal assembly comprises: a pedal lever which is rotatably mounted on a joint, and connected to the pedal lever by a sliding bearing of the pedal lever actuating means which is intended to be in operative connection with the clutch, wherein the sliding bearing is arranged on the pedal lever, that a radial movement of the actuating means is made possible with respect to the joint.
Aus dem Stand der Technik ist es bekannt, Kupplungen mit einem Pedalhebel zu betätigen, wobei an dem Pedalhebel eine Steuerstange oder ein Zugseil angelenkt ist, mit der oder dem die Kupplung betätigt wird. Diese Pedalanordnung hat jedoch den Nachteil, dass die zur Betätigung der Kupplung auf das Pedal aufzubringende Kraft im Wesentlichen direkt proportional zu der Kraft ist, die an der Kupplung benötigt wird, um die Kupplung zu betätigen. Dies wiederum ist nachteilig, da bei Kraftfahrzeugen üblicherweise eingesetzte Kupplungen beim Betätigen durch einen Benutzer einen nicht linearen Kraft-Weg-Zusammenhang aufweisen. Dies führt dazu, dass die zur Betätigung der Kupplung aufzubringende Kraft während des Niederdrückens des Pedalhebels auch wieder geringer werden kann. Dies wird allgemein als "Pedal load drop-off" (Pedal-Lastabfall) bezeichnet, von Benutzern als unangenehm empfunden und stellt einen Nachteil dar. Aus dem Stand der Technik bekannte Vorrichtungen, welche dieses Problem lösen sollen, weisen einen komplizierten Aufbau auf. Ein komplizierter Aufbau ist jedoch aus Zuverlässigkeits- und Kosten-Gründen ebenfalls unerwünscht.From the prior art it is known to actuate clutches with a pedal lever, wherein on the pedal lever, a control rod or a traction cable is articulated, with the or the clutch is actuated. However, this pedal assembly has the disadvantage that the force applied to the pedal for actuating the clutch is substantially directly proportional to the force required on the clutch to actuate the clutch. This, in turn, is disadvantageous since clutches commonly used in motor vehicles when actuated by a user have a non-linear force-displacement relationship. As a result, the force to be applied for actuating the clutch can also become lower again during the depression of the pedal lever. This is commonly referred to as "pedal load drop-off", perceived by users as unpleasant and presents a disadvantage. Prior art devices which are intended to solve this problem have a complicated structure. However, a complicated structure is also undesirable for reliability and cost reasons.
Es ist eine Aufgabe der Erfindung, eine verbesserte Pedalanordnung bereitzustellen, welche die Nachteile des Standes der Technik vermindert, insbesondere ist es eine Aufgabe der Erfindung, eine Pedalanordnung anzugeben, die auf einfache Weise ermöglicht, dass auf den Kraft-Weg-Zusammenhang zwischen einem Kupplungspedal und einer zu betätigenden Kupplung Einfluss genommen wird.It is an object of the invention to provide an improved pedal assembly which reduces the drawbacks of the prior art, in particular it is an object of the invention to provide a pedal assembly which allows, in a simple way, the force-displacement relationship between a clutch pedal and a clutch to be actuated is influenced.
Die Aufgabe wird gelöst durch eine Pedalanordnung, insbesondere eine Kupplungspedalanordnung, zur Betätigung einer Kupplung mit einem veränderlichen Kraftübertragungsverhältnis, wobei die Pedalanordnung umfasst: einen Pedalhebel, der drehbar an einem Gelenk gelagert ist, und ein mit dem Pedalhebel durch ein Gleitlager des Pedalhebels verbundenes Betätigungsmittel, das dazu vorgesehen ist, in Wirkverbindung mit der Kupplung zu stehen, wobei das Gleitlager so an dem Pedalhebel angeordnet ist, dass eine radiale Bewegung des Betätigungsmittels in Bezug auf das Gelenk ermöglicht wird, dadurch gekennzeichnet, dass das Betätigungsmittel ausschließlich in dem Gleitlager des Pedalhebels und in mindestens einer Kulisse geführt und gelagert ist.The object is achieved by a pedal assembly, in particular a clutch pedal assembly, for actuating a clutch with a variable power transmission ratio, wherein the pedal assembly comprises: a pedal lever which is rotatably mounted on a joint, and connected to the pedal lever by a sliding bearing of the pedal lever actuating means, which is intended to be in operative connection with the clutch, wherein the sliding bearing is arranged on the pedal lever such that a radial movement of the actuating means with respect to the joint is made possible, characterized in that the actuating means is guided and supported exclusively in the plain bearing of the pedal lever and in at least one link.
Die Erfindung bietet den Vorteil, dass das Übersetzungsverhältnis zwischen dem Pedalhebel und der Kupplung durch Verändern der Lage des Betätigungsmittels in dem Gleitlager beeinflussbar ist. Das Gelenk ist vorzugsweise ortsfest, d.h. gehäusefest in Bezug auf ein die Pedalanordnung aufnehmendes Kraftfahrzeug angeordnet. Außerdem weist das Gelenk vorzugsweise einen Drehfreiheitsgrad auf, wie dies aus dem Stand der Technik bei in üblichen Kraftfahrzeugen verwendeten Kupplungspedalen bekannt ist. Durch die Führung des Betätigungsmittels in der Kulisse wird erreicht, dass das mit dem Pedalhebel erreichte Übersetzungsverhältnis von der Winkelposition des Pedalhebels abhängig ist, so dass auf die zur Betätigung der Kupplung auf den Pedalhebel aufzubringende Kraft Einfluss genommen wird. Dies wird vorzugsweise erreicht, indem auf eine Führung des Betätigungsmittels Einfluss genommen oder eine bestimmte Führung für das Betätigungsmittel vorgegeben wird.The invention has the advantage that the transmission ratio between the pedal lever and the clutch can be influenced by changing the position of the actuating means in the sliding bearing. The joint is preferably stationary, i. fixed to the housing with respect to a pedal assembly receiving motor vehicle arranged. In addition, the joint preferably has a rotational degree of freedom, as is known from the prior art used in conventional motor vehicles clutch pedals. Due to the guidance of the actuating means in the slide it is achieved that the gear ratio achieved with the pedal lever is dependent on the angular position of the pedal lever, so that influence is exerted on the force to be applied to the pedal lever for actuating the clutch. This is preferably achieved by influencing a guidance of the actuating means or by prescribing a specific guide for the actuating means.
Vorteilhafterweise ist die Kulisse so ausgebildet und angeordnet, dass die Lage des Betätigungsmittels in dem Gleitlager des Pedalhebels von der Winkelposition des Pedalhebels und der Ausbildung der Kulisse abhängt. Dies bietet den Vorteil, dass durch die Auswahl der Form der Kulisse auf die Position des Betätigungsmittels in dem Gleitlager des Pedalhebels in Abhängigkeit von der Winkelposition des Pedalhebels Einfluss genommen werden kann. Auf diese Weise lässt sich ein Kraft-Weg-Diagramm beeinflussen, das für die Betätigung des Pedalhebels und damit der Kupplung durch den Pedalhebel maßgeblich ist.Advantageously, the scenery is designed and arranged so that the position of the actuating means in the sliding bearing of the pedal lever depends on the angular position of the pedal lever and the formation of the scenery. This offers the advantage that can be influenced by the selection of the shape of the slide on the position of the actuating means in the sliding bearing of the pedal lever in dependence on the angular position of the pedal lever. In this way, a force-displacement diagram can be influenced, which is decisive for the actuation of the pedal lever and thus the clutch by the pedal lever.
Vorzugsweise sind die mindestens eine Kulisse und das Gelenk relativ zueinander unverschieblich angeordnet. Dies wird besonders einfach dadurch erreicht, dass die Kulisse und das Gelenk beide gehäusefest an einem Fahrzeug montiert sind, welches zur Aufnahme der Pedalanordnung vorgesehen ist.Preferably, the at least one link and the hinge are arranged immovable relative to each other. This is achieved particularly simply by the fact that the slide and the joint are both fixed to the housing mounted on a vehicle which is provided for receiving the pedal assembly.
Vorzugsweise ist das Betätigungsmittel ein in dem Gleitlager des Pedalhebels gelagerter und in der mindestens einen Kulisse geführter Stift. Die Lagerung des Betätigungsmittels in dem Gleitlager des Pedalhebels ist vorzugsweise eine drehbare Lagerung. Die genannten Merkmale bieten den Vorteil eines einfachen mechanischen Aufbaus zur Umsetzung eines Wegabhängigen Übersetzungsverhältnisses zur Kupplungsbetätigung. Der Stift ist vorzugsweise auch in der Kulisse drehbar gelagert. Der Stift ist vorzugsweise gerade, wobei sich ein einfacher Aufbau ergibt. Für die Lagerung des Stifts in der Kulisse können allgemein aus dem Stand der Technik bekannte Methoden bzw. Lager verwendet werden.Preferably, the actuating means is mounted in the sliding bearing of the pedal lever and guided in the at least one link pin. The storage of the actuating means in the sliding bearing of the pedal lever is preferably a rotatable mounting. The features mentioned offer the advantage of a simple mechanical construction for implementing a travel-dependent transmission ratio for clutch actuation. The pen is preferably also rotatably mounted in the scenery. The pin is preferably straight, resulting in a simple structure. For the storage of the pin in the backdrop can generally methods known from the prior art or bearings are used.
Die Pedalanordnung weist vorzugsweise eine weitere, zur ersten Kulisse formgleiche Kulisse auf, wobei die Kulisse und die weitere Kulisse jeweils auf gegenüberliegenden Seiten des Pedalhebels angeordnet sind. Dabei bedeutet auf gegenüberliegenden Seiten des Pedalhebels, dass die Kulissen seitlich des Pedalhebels in Bezug auf die Bewegungsrichtung des Pedalhebels angeordnet sind. Besonders vorteilhaft ist, dass die Kulissen im Wesentlichen zueinander oder zu der Bewegungsrichtung des Pedalhebels parallel angeordnet sind. Dies bietet wiederum den Vorteil eines besonders einfachen mechanischen Aufbaus.The pedal assembly preferably has a further, the same setting for the first backdrop backdrop, the backdrop and the other backdrop are each arranged on opposite sides of the pedal lever. It means on opposite sides of the pedal lever that the scenes are arranged laterally of the pedal lever with respect to the direction of movement of the pedal lever. It is particularly advantageous that the scenes are arranged substantially parallel to each other or to the direction of movement of the pedal lever. This in turn offers the advantage of a particularly simple mechanical construction.
Außerdem ist es vorteilhaft, dass das Gelenk an einem Trägerelement angeordnet ist, und die Kulissen in dem Trägerelement ausgebildet sind. Dies bietet den Vorteil eines besonders einfachen, robusten Aufbaus. Das Trägerelement kann ein Teil der Fahrzeugkarosserie oder ein Pedalaufnahme-Trägerelement sein, das an einer Fahrzeugkarosserie montiert wird. Vorzugsweise ist das Trägerelement ein im Wesentlichen U-förmiges Blech, in dem das Gelenk aufgenommen ist und bei dem die Kulissen in den Seitenwangen des U-förmigen Trägerelements ausgebildet sind.Moreover, it is advantageous that the joint is arranged on a carrier element, and the scenes are formed in the carrier element. This offers the advantage of a particularly simple, robust construction. The support member may be a part of the vehicle body or a pedal receiving support member which is mounted on a vehicle body. Preferably, the support member is a substantially U-shaped plate in which the joint is received and in which the scenes are formed in the side walls of the U-shaped support member.
Vorzugsweise ist an dem Betätigungselement eine Schubstange zur Betätigung der Kupplung befestigt, wobei die Befestigung vorzugsweise eine gelenkige Befestigung ist. Besonders im Verbund mit der Ausführung des Betätigungselements als Stift ergibt sich auf diese Weise eine einfache mechanische Konstruktion.Preferably, a push rod is attached to the actuator for actuating the coupling, wherein the attachment is preferably a hinged attachment. Especially in conjunction with the embodiment of the actuating element as a pin results in this way a simple mechanical construction.
Vorzugsweise weist die Kulisse eine Wellenform auf. Dabei bedeutet Wellenform, dass die Kulisse so ausgebildet ist, dass der radiale Abstand des Betätigungsmittels in dem Gleitlager zu dem Gelenk bei Betätigung des Pedalhebels in einer Richtung zuerst vergrößert oder verkleinert wird und anschließend bei weiterer Betätigung des Pedalhebels in der gleichen Richtung wieder verkleinert bzw. vergrößert wird. D.h., dass sich die Position des Betätigungsmittels während einer Betätigung des Pedalhebels in einer Richtung in zwei verschiedenen Richtungen entlang des Pedalhebels bewegt. Besonders vorteilhaft ist es, dass sich die Position während einer Betätigung des Pedalhebels durch einen Benutzer zunächst radial auf das Gelenk zu bewegt und anschließend bei weiterer Betätigung des Pedalhebels in der gleichen Richtung wieder radial von dem Gelenk weg bewegt. Dadurch wird erreicht, dass der bei Fahrzeug-Kupplungen typische Pedal-Lastabfall verringert wird. Unter Wellenform wird vorzugsweise auch verstanden, dass die Form der Kulisse zumindest zwei entgegen gesetzte Krümmungen aufweist.Preferably, the backdrop has a waveform. In this case, waveform means that the slide is formed so that the radial distance of the actuating means in the slide bearing to the joint on actuation of the pedal lever in one direction is first increased or decreased, and then reduced in further operation of the pedal lever in the same direction again or is enlarged. That is, the position of the actuating means moves in one direction in two different directions along the pedal lever during operation of the pedal lever. It is particularly advantageous that the position initially moves radially onto the joint during actuation of the pedal lever by a user and then moves radially away from the joint upon further actuation of the pedal lever in the same direction. This ensures that the at Vehicle clutches typical pedal load drop is reduced. Under wave form is also preferably understood that the shape of the backdrop has at least two opposite curvatures.
Vorzugsweise ist die Kulisse so ausgebildet, dass eine von der Winkelstellung des Pedalhebels abhängige, auf den Pedalhebel zur Betätigung der Kupplung aufzubringende Kraft über die Winkelstellung des Pedalhebels vergleichmäßigt wird. Dabei bedeutet vergleichmäßigt, dass insbesondere bei Winkelstellungen des Pedalhebels, bei denen zur Betätigung eine besonders hohe Kraft aufzubringen ist, die Kraft durch die erfindungsgemäße Pedalanordnung verringert wird. Auf diese Weise werden Maximalkräfte im Kraft-Weg-Diagramm der Pedalanordnung bei Betätigung einer Kupplung abgebaut und außerdem der Pedal-Lastabfall nach einer Maximalkraft verringert.Preferably, the gate is designed so that a dependent on the angular position of the pedal lever, is applied to the pedal lever for actuating the clutch applied force on the angular position of the pedal lever. It means gleichmäßigt that especially at angular positions of the pedal lever, which is applied for the operation of a particularly high force, the force is reduced by the pedal assembly according to the invention. In this way, maximum forces are reduced in the force-displacement diagram of the pedal assembly upon actuation of a clutch and also reduces the pedal load drop to a maximum force.
Vorzugsweise ist vorgesehen, dass das Betätigungsmittel einen ersten Bolzen und einen zweiten Bolzen umfasst, die starr miteinander verbunden sind. Dabei ist die Schubstange bevorzugt mit dem radial näher an der Gelenkachse gelegenen Bolzen verbunden. Der erste Bolzen und der zweite Bolzen sind bevorzugt gemeinsam in einem Ausschnitt im Wesentlichen radial bezogen auf die Gelenkachse verschiebbar gelagert. Die Schubstange ist somit radial weiter innen in Richtung auf die Drehachse gelagert, sodass diese zwar in radialer Richtung vollständig die durch die Kulisse vorgegebene Bewegung ausführt, dabei aber tangential durch den geringeren Abstand zur Drehachse eine geringere Bewegung ausführt. Auf diese Weise kann eine größere Variabilität der Untersetzung des Wegverhältnisses Pedalweg zu Weg der Schubstange realisiert werden.Preferably, it is provided that the actuating means comprises a first bolt and a second bolt, which are rigidly interconnected. In this case, the push rod is preferably connected to the bolt located radially closer to the hinge axis. The first bolt and the second bolt are preferably mounted so as to be displaceable together in a cutout substantially radially relative to the hinge axis. The push rod is thus mounted radially further inward in the direction of the axis of rotation, so that although it completely performs the predetermined by the backdrop movement in the radial direction, but doing tangentially by the smaller distance from the axis of rotation performs a lesser motion. In this way, a greater variability of the reduction of the travel ratio pedal travel to way of the push rod can be realized.
Im Folgenden werden Ausführungsbeispiele der Erfindung anhand der beiliegenden Zeichnungen erläutert.In the following, embodiments of the invention will be explained with reference to the accompanying drawings.
- Fig. 1Fig. 1
- eine schematische Darstellung eines ersten Ausführungsbeispiels einer erfindungsgemäßen Pedalanordnung,a schematic representation of a first embodiment of a pedal assembly according to the invention,
- Fig. 2Fig. 2
- ein Kraft-Weg-Diagramm, in dem schematisch die bei der Betätigung einer herkömmlichen und einer erfindungsgemäßen Pedalanordnung jeweils aufzubringen den Kräfte dargestellt sind,a force-displacement diagram in which the forces are shown schematically in the operation of a conventional and a pedal assembly according to the invention,
- Fig. 3Fig. 3
- eine schematische Darstellung eines zweiten Ausführungsbeispiels einer erfindungsgemäßen Pedalanordnung.a schematic representation of a second embodiment of a pedal assembly according to the invention.
In dem Gleitlager 5 ist ein als Stift ausgeführtes Betätigungsmittel 6 drehbar gelagert. Weiterhin ist das Betätigungsmittel 6 in zwei Kulissen 7 geführt, die in den Seitenwangen des Trägerelements 3 ausgebildet sind. Die Lagerung des Betätigungsmittels 6 in dem Gleitlager 5 und in den Kulissen 7 erfolgt durch Lager 8. An dem Betätigungsmittel 6 ist eine Schubstange 9 befestigt, welche eine Kupplung (nicht gezeigt) betätigen kann. Im Folgenden wird die Wirkungsweise der erfindungsgemäßen Pedalanordnung 1 erklärt, wobei davon ausgegangen wird, dass ein Bediener ein an dem Pedalhebel 2 angeordnetes Pedal 10 mit dem Fuß drückt, um die Kupplung zu betätigen.In the sliding
Beim Drücken des Pedals 10 wird der Pedalhebel 2 im Bild nach links verschwenkt, wobei das Betätigungsmittel 6 in den parallel verlaufenden Kulissen 7 nach links verschoben wird, wobei es gleichzeitig in dem Gleitlager 5 näher an die Gelenkachse 4 heranrückt. Dadurch wird bewirkt, dass zunächst das Betätigungsmittel 6 und damit die Schubstange 9 mit einem relativ größeren Hebelarm betätigt werden, wobei sich dieser Hebelarm im Laufe des Winkelfortschritts des Pedalhebels 2 verringert, da das Betätigungsmittel 6 in dem Gleitlager 5 durch die Führung der Kulissen 7 nach oben verschoben wird. Dabei sind im Wesentlichen drei Bereiche der Kulissen 7 zu unterscheiden, wobei in der Zeichnung der
Unter der Annahme, dass eine aus dem Stand der Technik bekannte und übliche Kupplung durch die Pedalanordnung 1 betätigt wird, werden in der
In der
Zunächst wird beim Niederdrücken des Pedals 10 wiederum der erste Bereich 11 durchschritten, wobei in diesem Bereich bei der erfindungsgemäßen Pedalanordnung 1 die zum Niederdrücken benötigte Kraft (durchgezogenen Linie) größer ist als die bei einer herkömmlichen Pedalanordnung benötigte Kraft (strichlierte Linie). Im nachfolgenden zweiten Bereich 12 wird die Maximalkraft, die benötigt wird, um den Pedalhebel 2 zu drücken, bei der erfindungsgemäßen Pedalanordnung 1 abgeschwächt und im dritten Bereich 13 wird die zum Drücken des Pedalhebels 2 benötigte Kraft gegenüber einer herkömmlichen Pedalanordnung wieder erhöht. Die Folge ist, dass der herkömmlich zwischen den Bereichen 12 und 13 auftretende Pedal-Lastabfall deutlich reduziert wird. Insgesamt wird das Kraft-Weg-Diagramm vergleichmäßigt.First, the depression of the pedal 10 again passes through the
Bei einer Betätigung des Pedalhebels 2 dreht sich dieser, wie bei dem zuvor beschriebenen Ausführungsbeispiel, um die Gelenkachse 4, wobei der erste Bolzen 14 die Kulisse 7 entlang wandert. Dadurch wird sowohl der erste Bolzen 14 als auch der zweite Bolzen 15, der mit dem ersten Bolzen 14 über die Verbindungsbleche 17 und 18 starr verbunden ist, innerhalb des Ausschnittes 22 verschoben, so dass sich der wirksame Hebelarm der Schubstange 9 gegenüber der Gelenkachse 4 ändert und somit eine variable Pedalübersetzung erzielt wird.Upon actuation of the
- 11
- Pedalanordnungpedal arrangement
- 22
- Pedalhebelpedal lever
- 33
- Trägerelementsupport element
- 44
- Gelenkachsejoint axis
- 55
- Gleitlagerbearings
- 66
- Betätigungsmittelactuating means
- 77
- Kulissenscenes
- 88th
- Lagercamp
- 99
- Schubstangepushrod
- 1010
- Pedalpedal
- 1111
- Erster BereichFirst area
- 1212
- Zweiter BereichSecond area
- 1313
- Dritter BereichThird area
- 1414
- Erster BolzenFirst bolt
- 1515
- zweiter Bolzensecond bolt
- 1616
- Schraubenkopfscrew head
- 1717
- Verbindungsblechconnecting plate
- 17a17a
- Gabelfork
- 1818
- Verbindungsblechconnecting plate
- 18a18a
- Bohrungdrilling
- 1919
- Lagerungsringstorage ring
- 2020
- Gewindethread
- 2121
- Sicherungsmutterlocknut
- 2222
- Ausschnittneckline
- 2323
- Doppelpfeildouble arrow
Claims (12)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US96734507P | 2007-09-04 | 2007-09-04 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2034384A2 true EP2034384A2 (en) | 2009-03-11 |
EP2034384A3 EP2034384A3 (en) | 2009-10-14 |
Family
ID=40104689
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08015172A Withdrawn EP2034384A3 (en) | 2007-09-04 | 2008-08-28 | Pedal assembly for actuating a clutch |
Country Status (3)
Country | Link |
---|---|
US (1) | US20090071285A1 (en) |
EP (1) | EP2034384A3 (en) |
DE (1) | DE102008044824A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2450276A1 (en) * | 2010-11-04 | 2012-05-09 | Eurocopter Deutschland GmbH | Mechanical transmission of translational motion |
DE102013216483A1 (en) * | 2013-08-20 | 2015-02-26 | Volkswagen Aktiengesellschaft | foot pedal |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
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US9040130B2 (en) | 2008-12-10 | 2015-05-26 | Balsam Hill Llc | Collapsible artificial tree |
DE102010022917B4 (en) | 2009-06-25 | 2019-08-08 | Schaeffler Technologies AG & Co. KG | Device for actuating a clutch |
US20150107401A1 (en) * | 2013-10-23 | 2015-04-23 | The U.S.A. As Represented By The Administrator Of The National Aeronautics And Space Administration | Pedal module for a vehicle having a control-by-wire system |
US10030808B2 (en) | 2014-01-27 | 2018-07-24 | UCP International Co. Ltd. | Invertible structure with a track |
US9581287B2 (en) | 2014-01-27 | 2017-02-28 | UCP International Co. Ltd. | Invertible structure with a track |
DE102014202235A1 (en) * | 2014-02-07 | 2015-08-13 | Volkswagen Aktiengesellschaft | Foot pedal mechanism and mounting method |
DE102016112188A1 (en) * | 2016-07-04 | 2018-01-04 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Pedal unit for a vehicle, in particular commercial vehicle |
US10173650B1 (en) * | 2017-11-29 | 2019-01-08 | Dura Operating, Llc | Pedal with snap-fit pivot bushing |
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DE2166130A1 (en) * | 1971-06-05 | 1973-03-15 | Hans O Schroeter | CLAMPING LEVER ACTING WITH VARIABLE GEAR, IN PARTICULAR FOR BRAKE ROD |
US6151985A (en) * | 1999-04-01 | 2000-11-28 | Daimlerchrysler Corporation | Adjustable pedal apparatus |
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DE102005003886A1 (en) * | 2005-01-27 | 2006-08-03 | Volkswagen Ag | Pedal e.g. clutch pedal, work for motor vehicle, has coupling unit provided for power transmission from pedal lever to bell crank and tiltably supported at lever, where deflecting point of coupling unit is adjustable at crank |
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US1464905A (en) * | 1922-05-25 | 1923-08-14 | Emil S Grafenstatt | Clutch pedal |
US2844228A (en) * | 1957-03-14 | 1958-07-22 | Wagner Electric Corp | Brake pedal ratio changer |
US4615235A (en) * | 1985-01-14 | 1986-10-07 | General Motors Corporation | Variable ratio brake pedal mechanism |
US4875385A (en) * | 1986-08-18 | 1989-10-24 | Sitrin Gabriel M | Control pedal apparatus for a motor vehicle |
US5078024A (en) * | 1986-08-18 | 1992-01-07 | Comfort Pedals Inc. | Control pedal apparatus for a motor vehicle |
US5460061A (en) * | 1993-09-17 | 1995-10-24 | Comfort Pedals, Inc. | Adjustable control pedal apparatus |
JP3964618B2 (en) * | 2000-12-22 | 2007-08-22 | 豊田鉄工株式会社 | Front and rear adjustable pedal device for vehicles |
WO2002055353A2 (en) * | 2001-01-10 | 2002-07-18 | Ksr International, Inc. | Brake pedal assembly with variable ratio |
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2008
- 2008-08-28 DE DE102008044824A patent/DE102008044824A1/en not_active Ceased
- 2008-08-28 EP EP08015172A patent/EP2034384A3/en not_active Withdrawn
- 2008-09-04 US US12/231,897 patent/US20090071285A1/en not_active Abandoned
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
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DE2166130A1 (en) * | 1971-06-05 | 1973-03-15 | Hans O Schroeter | CLAMPING LEVER ACTING WITH VARIABLE GEAR, IN PARTICULAR FOR BRAKE ROD |
US20010047695A1 (en) * | 1995-01-27 | 2001-12-06 | James Oliff | Brake operating device |
US6151985A (en) * | 1999-04-01 | 2000-11-28 | Daimlerchrysler Corporation | Adjustable pedal apparatus |
FR2821177A1 (en) * | 2001-02-19 | 2002-08-23 | Peugeot Citroen Automobiles Sa | CLUTCH PEDAL FOR EQUIPPING A VEHICLE |
EP1552995A2 (en) * | 2003-11-26 | 2005-07-13 | Ventra Group Inc. | Variable ratio pedal assembly |
DE102005003886A1 (en) * | 2005-01-27 | 2006-08-03 | Volkswagen Ag | Pedal e.g. clutch pedal, work for motor vehicle, has coupling unit provided for power transmission from pedal lever to bell crank and tiltably supported at lever, where deflecting point of coupling unit is adjustable at crank |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2450276A1 (en) * | 2010-11-04 | 2012-05-09 | Eurocopter Deutschland GmbH | Mechanical transmission of translational motion |
DE102013216483A1 (en) * | 2013-08-20 | 2015-02-26 | Volkswagen Aktiengesellschaft | foot pedal |
Also Published As
Publication number | Publication date |
---|---|
US20090071285A1 (en) | 2009-03-19 |
EP2034384A3 (en) | 2009-10-14 |
DE102008044824A1 (en) | 2009-03-05 |
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