WO2003069193A1 - Shifting device with four shifting positions - Google Patents

Shifting device with four shifting positions Download PDF

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Publication number
WO2003069193A1
WO2003069193A1 PCT/AT2003/000054 AT0300054W WO03069193A1 WO 2003069193 A1 WO2003069193 A1 WO 2003069193A1 AT 0300054 W AT0300054 W AT 0300054W WO 03069193 A1 WO03069193 A1 WO 03069193A1
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WO
WIPO (PCT)
Prior art keywords
lever
switching device
force elements
force
positions
Prior art date
Application number
PCT/AT2003/000054
Other languages
German (de)
French (fr)
Inventor
Gerhard Eibler
Original Assignee
Tesma Motoren- Und Getriebetechnik Gmbh
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Publication of WO2003069193A1 publication Critical patent/WO2003069193A1/en

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B11/00Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/16Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
    • F15B11/18Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors used in combination for obtaining stepwise operation of a single controlled member
    • F15B11/183Linear stepwise operation
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H61/00Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/26Generation or transmission of movements for final actuating mechanisms
    • F16H61/28Generation or transmission of movements for final actuating mechanisms with at least one movement of the final actuating mechanism being caused by a non-mechanical force, e.g. power-assisted
    • F16H61/30Hydraulic or pneumatic motors or related fluid control means therefor
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H61/00Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/26Generation or transmission of movements for final actuating mechanisms
    • F16H61/28Generation or transmission of movements for final actuating mechanisms with at least one movement of the final actuating mechanism being caused by a non-mechanical force, e.g. power-assisted
    • F16H61/32Electric motors actuators or related electrical control means therefor
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H61/00Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/26Generation or transmission of movements for final actuating mechanisms
    • F16H61/28Generation or transmission of movements for final actuating mechanisms with at least one movement of the final actuating mechanism being caused by a non-mechanical force, e.g. power-assisted
    • F16H61/30Hydraulic or pneumatic motors or related fluid control means therefor
    • F16H2061/307Actuators with three or more defined positions, e.g. three position servos

Definitions

  • the invention relates to switching devices which consist of a lever and an actuator, the lever acting on both the actuator and a switching element to be moved into successive positions.
  • switching devices are used in a wide variety of fields. Two examples are mentioned: In vehicles for shifting the gears of a transmission, precise positioning in several positions is required. In pumps and fans, switching devices are used to adjust a throttle valve or a flow switch or other flow control elements.
  • an electromagnet solenoid
  • YES / NO open / close
  • the stroke of an electromagnet is also limited; the force drops sharply when the stroke is extended.
  • linear motors are also used. Although these allow you to move to any position, they are very complex in terms of structure and tax requirements and require additional measures to maintain a position you have approached. For example, and especially for pumps and fans, if an on / off control is not sufficient, continuous position control is used, although thanks to its adaptable map, a control with a limited number of defined positions would often suffice.
  • the advantages of a step-by-step control can only be used if this is accompanied by a simplification of the actuating device and the control logic, and nevertheless accurate, multi-step positioning is possible.
  • the actuator comprises two force elements, which can be moved back and forth between two positions and act on the lever's points of attack that are at a first distance from one another, and engages the switching element at a point of the lever's tapping, which is outside the connecting path of the two points of attack in one second distance from the closer point of attack.
  • the geometric relationships are particularly clear when the directions of movement of the force elements are approximately parallel (claim 2).
  • the four positions of the tapping point are approximate on a straight line if it lies on the connecting line of the two points of attack (claim 3), the straight line being approximately parallel to the directions of action of the force elements.
  • the straight line of the tapping point can be improved by varying the directions of movement of the force elements. If the first distance is approximately equal to the second (claim 4), the distances of the tapping points from one another are also the same.
  • the force elements can be mechanical, fluidic (hydraulic or pneumatic) or electrical, in particular electromagnetic, and perform an essentially rectilinear movement. In most cases it will be fluid cylinders (claim 9) or solenoids controlled by a control logic (claim 10).
  • the fluid cylinder can be hydraulic or pneumatic or a simple pressure can.
  • the force elements are either double-acting (claim 5) or single-acting and can be brought into the other position by means of a force accumulator (claim 6).
  • they are affected by energy from both the can also be moved from the second to the first position from the second to the second, which requires two commands [plusl] and [-1], but in the case of a bistable electromagnet also a setting in all positions in the de-energized state.
  • FIG. 2 a schematic of the same, reduced, FIG. 2a: the switching logic associated with FIG. 2, FIG. 3: as in FIG. 2, modified,
  • Fig. 3a the switching logic associated with Fig. 3
  • Fig. 4 a schematic of a variant, reduced.
  • a housing of a switching device is indicated as a base plate 1.
  • a first force element A3 and a second force element B4 are firmly attached to this.
  • the two force elements 3, 4 are controlled by a control unit 5, that is to say they are supplied with energy in a controlled manner.
  • the force elements can be both fluid cylinders also be electromagnets, especially solenoids.
  • the push rods 14, 15 projecting from these are displaced in this way.
  • a lever 2 has a first and a second point of engagement 6, 7, to which the push rods 14, 15 are articulated.
  • the two points of attack 6, 7 are at a first distance 8 from one another.
  • the lever 2 has a tap point 9 to which a switching element 11 is articulated.
  • the tapping point 9 is at a second distance 10 from the force element 4.
  • the force elements 3, 4 have a simple effect (monostable as solenoids). Therefore, a spring 12, 13 is provided in each case, which moves it back into a basic position when it is not loaded.
  • the force elements A with 23 and B with 24 are designated. They are single-acting solenoids, which means that they exert a pulling force on the attack points 6, 7.
  • the four consecutive switching stages are created by pulling only the solenoid A (first stage), once only the solenoid B (fourth stage), once both (third stage) and once neither (second stage). This is shown capillary in Fig. 2A.
  • the force elements 33, 34 are double-acting, that is to say double-acting hydraulic cylinders or distable solenoids. Since both positions of the force elements 33, 34 are stable, they are denoted by minus 1 and plus 1 and the assignment to the individual switching stages is shown in FIG. 3A.
  • the force element 44 is displaced with a movement direction that deviates from the first force element, here offset by 180 degrees. However, other angular misalignments are also possible.
  • the direction of action of the force elements is shown parallel and at right angles to the lever in all the figures. This can be varied to the extent necessary for the respective switching movement, as well as with the shape of the lever and the ratios of the distances 8, 10.
  • the physical design of the points of attack 6, 7 and 9 can be designed as desired in accordance with the respective requirements. Usually, joints will be found at these points, possibly with a slight play in the longitudinal direction of the lever 2.
  • the described invention can also be applied recursively.
  • This means that one of the force elements can again be replaced by an arrangement according to the invention with two force elements, the tapping point of the subsystem being connected to the second point of attack 7. In this way, the number of switch positions can be increased to eight.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Control Devices (AREA)

Abstract

Disclosed is a shifting device comprising a lever and an actuator. Said actuator comprises two force elements (3, 4) which are movable fore and aft between two positions and engage with engagement points (6, 7) of the lever (2). A shifting member (11) engages with a tapping point (9) of the lever (2), which lies at a second distance (10) from the closer engagement point (7) outside the connecting section between the two engagement points (6, 7), whereby shifting between four shifting positions is made possible by means of two simple shifting elements, e.g. solenoids.

Description

SCHALTVORRICHTUNG MIT VIER SCHALTSTELLUNGEN SWITCHING DEVICE WITH FOUR SWITCHING POSITIONS
Die Erfindung betrifft Schaltvorrichtungen, die aus einem Hebel und aus einem Aktuator bestehen, wobei an dem Hebel sowohl der Aktuator als auch ein in aufeinanderfolgende Stellungen zu bewegendes Schaltglied angreift. Derartige Schaltvomchtungen finden auf den verschiedensten Gebieten Anwendung. Zwei Beispiele seien genannt: In Fahrzeugen zum Schalten der Gänge eines Getriebes ist eine genaue Positionierung in mehreren Stellungen erforderlich. Bei Pumpen und Ventilatoren werden Schaltvomchtungen zur Verstellung einer Drosselklappe oder einer Strö- mungsweiche oder von anderen Strömungsleitelementen eingesetzt.The invention relates to switching devices which consist of a lever and an actuator, the lever acting on both the actuator and a switching element to be moved into successive positions. Such switching devices are used in a wide variety of fields. Two examples are mentioned: In vehicles for shifting the gears of a transmission, precise positioning in several positions is required. In pumps and fans, switching devices are used to adjust a throttle valve or a flow switch or other flow control elements.
Meist wird bei derartigen Schaltvorrichtungen als Aktuator ein Elektromagnet (Solenoid) eingesetzt, der nur zwei Stellungen kennt, somit nur für eine JA/ NEIN (=auf/zu) - Steuerung geeignet ist. Der Hub eines Elektromagneten ist ausserdem beschränkt; bei Verlängerung des Hubes sinkt die Kraft stark ab. Bisweilen werden auch Linearmotoren eingesetzt. Diese erlauben zwar das Anfahren beliebiger Stellungen, sind aber in Aufbau und Steuererfordemissen sehr aufwändig und bedürfen zur Beibehaltung einer angefahrenen Position zusätzlicher Massnahmen. Beispielsweise und vor allem bei Pumpen und Ventilatoren wird, wemi eine ein/aus - Steuerung nicht genügt, eine kontinuierliche Positionssteuerung eingesetzt, obwohl dank ihres anpassungsfähigen Kennfeldes oft eine Steuerung mit einer begrenzten Anzahl von definierten Stellungen genügen würde. Die Vorteile einer stufenweisen Steuerung sind aber erst nutzbar, wenn damit eine Vereinfachung der Betätigungsvorrichtung und der Steuerlogik einhergeht, und trotzdem genaue mehrstufige Positionierung möglich ist.In such switching devices, an electromagnet (solenoid) is usually used as the actuator, which only knows two positions and is therefore only suitable for YES / NO (= open / close) control. The stroke of an electromagnet is also limited; the force drops sharply when the stroke is extended. Sometimes linear motors are also used. Although these allow you to move to any position, they are very complex in terms of structure and tax requirements and require additional measures to maintain a position you have approached. For example, and especially for pumps and fans, if an on / off control is not sufficient, continuous position control is used, although thanks to its adaptable map, a control with a limited number of defined positions would often suffice. However, the advantages of a step-by-step control can only be used if this is accompanied by a simplification of the actuating device and the control logic, and nevertheless accurate, multi-step positioning is possible.
Der Erfindung liegt die Aufgabe zugrunde, eben das zu erreichen. Dazu umfasst der Aktuator zwei Kraftelemente, die zwischen zwei Stellungen hin und her bewegbar sind und an Angriffspunkten des Hebels angreifen, die einen ersten Abstand voneinander haben, und greift das Schaltglied an einem Abgriffspunkt des Hebels an, der ausserhalb der Verbindungsstrecke der beiden Angriffspunkte in einem zweiten Abstand von dem näheren Angriffspunkt liegt.The invention has for its object to achieve just that. For this purpose, the actuator comprises two force elements, which can be moved back and forth between two positions and act on the lever's points of attack that are at a first distance from one another, and engages the switching element at a point of the lever's tapping, which is outside the connecting path of the two points of attack in one second distance from the closer point of attack.
Damit sind zunächst bei zwei mal zwei Positionen der Kraftelemente vier Positionen des Abgriffspunktes möglich und genau definiert, da die je zwei Positionen der Kraftelemente ja Endpositionen und somit genau mecha- nisch festlegbar sind. Weil die Kraftelemente nur zwei Positionen haben, brauchen sie keinen Positionsregelkreis mit Positionssensor und einem zu berücksichtigenden Zeitverhalten. Es gibt für die Ansteuemng jedes Kraftelementes nur zwei Befehle, entsprechend logisch [0] und logisch [1], was bei einer Steuerung mittels digitaler Logik die gesamte Digital/ Analog - Umwandlung erspart und so eine drastische Vereinfachung bedeutet. Überdies geschieht das Umschalten ohne wesentliche Zeitverzögerung. Der Hebel selbst ist ein ganz einfaches Maschinenelement, das in Form und Dimensionierung der jeweiligen Aufgabenstellung und den gewünschten Schaltstellungen des Abgriffspunktes leicht anpassbar ist. Dazu sind auch die Angriffspunkte und Wirkungsrichtungen der Kraftelemente in gewissen Grenzen wählbar. Überdies kann durch seine Bewegungsübersetzung der Hub der ElektiOmagnete kurz gehalten werden.With two times two positions of the force elements, four positions of the tapping point are thus initially possible and precisely defined, since the two positions of the force elements are indeed end positions and can therefore be precisely mechanically determined. Because the force elements only have two positions, they do not need a position control loop with a position sensor and a time behavior to be taken into account. There are only two commands for the control of each force element, corresponding to logical [0] and logical [1], which saves the entire digital / analog conversion when controlled by digital logic and thus means a drastic simplification. In addition, switching takes place without a significant time delay. The lever itself is a very simple machine element that is easily adaptable in the form and dimensioning of the respective task and the desired switching positions of the tap point. For this purpose, the points of action and directions of action of the force elements can be selected within certain limits. In addition, the stroke of the electromagnets can be kept short due to its movement ratio.
Besonders übersichtlich sind die geometrischen Verhältnisse, wenn die Bewegungsrichtungen der Kraftelemente ungefähr parallel sind (Anspruch 2). Die vier Stellungen des Abgreifpunktes sind angenähert auf einer Geraden, wenn er auf der Verbindungslinie der beiden Angriffspunkte liegt (Anspruch 3), wobei die Gerade ungefähr parallel zu den Wirkungsrichtungen der Kraftelemente ist. Durch Variation der Bewegungsrichtungen der Kraftelemente kann die Geradführung des Abgreifpunktes verbessert werden. Wenn der erste Abstand angenähert gleich dem zweiten ist (Anspruch 4), sind zudem die Abstände der Abgreifpunkte voneinander gleich.The geometric relationships are particularly clear when the directions of movement of the force elements are approximately parallel (claim 2). The four positions of the tapping point are approximate on a straight line if it lies on the connecting line of the two points of attack (claim 3), the straight line being approximately parallel to the directions of action of the force elements. The straight line of the tapping point can be improved by varying the directions of movement of the force elements. If the first distance is approximately equal to the second (claim 4), the distances of the tapping points from one another are also the same.
Die Kraftelemente können mechanisch, fluidisch (hydraulisch oder pneumatisch) oder elektrisch, insbesondere elektromagnetisch, sein und führen eine im Wesentlichen geradlinige Bewegung aus. In den meisten Fällen werden es Fluidzylinder (Anspruch 9) oder von einer Steuerlogik aus angesteuerte Solenoide (Anspruch 10) sein. Der Fluidzylinder kann hydraulisch oder pneumatisch oder eine einfache Druckdose sein.The force elements can be mechanical, fluidic (hydraulic or pneumatic) or electrical, in particular electromagnetic, and perform an essentially rectilinear movement. In most cases it will be fluid cylinders (claim 9) or solenoids controlled by a control logic (claim 10). The fluid cylinder can be hydraulic or pneumatic or a simple pressure can.
In praktischen Ausführungsformen sind die Kraftelemente entweder doppeltwirkend (Anspruch 5) oder einfachwirkend und mittels eines Kraftspeichers in die jeweils andere Stellung bringbar (Anspruch 6). Im ersteren Fall sind sie durch Beaufschlagung mit Energie sowohl von der ersten in die zweite aus auch von der zweiten in die erste Stellung bringbar, was zwar zweierlei Befehle [plusl] und [-1] bedingt, im Falle eines bistabilen Elektromagneten aber auch ein Festlegen in sämtlichen Stellungen, im stromlosen Zustand.In practical embodiments, the force elements are either double-acting (claim 5) or single-acting and can be brought into the other position by means of a force accumulator (claim 6). In the former case, they are affected by energy from both the can also be moved from the second to the first position from the second to the second, which requires two commands [plusl] and [-1], but in the case of a bistable electromagnet also a setting in all positions in the de-energized state.
Im zweiten Fall, entsprechend einem monostabilen Elektromagneten sind die Verhältnisse besonders einfach. Die Befehle lauten [1] und [0], wobei die Anordnung ziehend oder drückend getroffen sein kann. Das heisst, bei [1] wird auf den Angriffspunkt des Hebels entweder eine Zugkraft (Anspruch 7) oder eine Druckkraft (Anspruch 8) ausgeübt. Bei Wegfall dieser Kraft sorgt die Feder für eine Rückkehr in die Grundposition. Damit ist die Ausfallsicherheit der Vorrichtung gegeben.In the second case, corresponding to a monostable electromagnet, the situation is particularly simple. The commands are [1] and [0], whereby the arrangement can be made pulling or pushing. This means that in [1] either a tensile force (claim 7) or a compressive force (claim 8) is exerted on the point of application of the lever. If this force is lost, the spring returns to the basic position. This ensures that the device is fail-safe.
Im folgenden wird die Erfindung anhand von Abbildungen beschrieben und erläutert. Es stellen dar:The invention is described and explained below with the aid of figures. They represent:
Fig. 1 : ein Ausfuhrungsbeispiel einer erfindungsgemäßen Vorrichtung,1: an exemplary embodiment of a device according to the invention,
Fig. 2: ein Schema derselben, verkleinert, Fig. 2a: die zu Fig. 2 gehörige Schaltlogik, Fig. 3: wie Fig. 2, abgewandelt,2: a schematic of the same, reduced, FIG. 2a: the switching logic associated with FIG. 2, FIG. 3: as in FIG. 2, modified,
Fig. 3a: die zu Fig. 3 gehörige Schaltlogik, Fig. 4: ein Schema einer Variante, verkleinert.Fig. 3a: the switching logic associated with Fig. 3, Fig. 4: a schematic of a variant, reduced.
In Fig. 1 ist ein Gehäuse einer erfindungsgemäßen Schaltvorrichtung als Grundplatte 1 angedeutet. Auf dieser ist ein erstes Kraftelement A3 und ein zweites Kraftelement B4 fest angebracht. Die beiden Kraftelemente 3, 4 werden von einem Steuergerät 5 angesteuert, das heißt in gesteuerter Weise mit Energie versorgt. Die Kraftelemente können sowohl Fluidzylinder als auch Elektromagneten, insbesondere Solenoide sein. Die aus diesen herausragenden Schubstangen 14, 15 werden auf diese Weise verschoben. Ein Hebel 2 hat einen ersten und einen zweiten Angriffspunkt 6, 7, an denen die Schubstangen 14, 15 angelenkt sind. Die beiden Angriffspunkte 6, 7 haben voneinander einen ersten Abstand 8. An seinen beiden Kraftele- menten 3, 4 abgewandten Ende hat der Hebel 2 einen Abgriffpunkt 9, an dem ein Schaltglied 11 angelenkt ist. Dieses führt direkt oder über weitere Zwischenglieder, führt die gewünschte Schaltbewegung aus. Der Abgriffpunkt 9 hat von dem Kraftelement 4 einen zweiten Abstand 10. In dem gezeigten Ausführungsbeispiel sind die Kraftelemente 3, 4 einfach wir- kend (als Solenoide monostabil). Deshalb ist jeweils eine Feder 12, 13 vorgesehen, die sie bei nicht Beaufschlagung in eine Grundstellung zurückbewegt.In Fig. 1, a housing of a switching device according to the invention is indicated as a base plate 1. A first force element A3 and a second force element B4 are firmly attached to this. The two force elements 3, 4 are controlled by a control unit 5, that is to say they are supplied with energy in a controlled manner. The force elements can be both fluid cylinders also be electromagnets, especially solenoids. The push rods 14, 15 projecting from these are displaced in this way. A lever 2 has a first and a second point of engagement 6, 7, to which the push rods 14, 15 are articulated. The two points of attack 6, 7 are at a first distance 8 from one another. At its end remote from the two force elements 3, 4, the lever 2 has a tap point 9 to which a switching element 11 is articulated. This leads directly or via other intermediate links, executes the desired switching movement. The tapping point 9 is at a second distance 10 from the force element 4. In the exemplary embodiment shown, the force elements 3, 4 have a simple effect (monostable as solenoids). Therefore, a spring 12, 13 is provided in each case, which moves it back into a basic position when it is not loaded.
Anhand von Fig.2 wird nun die Funktion erläutert. In dieser sind die Kraftelemente A mit 23 und B mit 24 bezeichnet. Sie sind einfachwirkende Solenoide, das heißt, sie üben auf die Angriffspunkte 6, 7 eine Zugkraft aus. Die vier aufeinanderfolgenden Schaltstufen werden dadurch geschaffen, dass einmal nur das Solenoid A angezogen ist (erste Stufe) einmal nur das Solenoid B (vierte Stufe) einmal beide (dritte Stufe) und einmal keines von beiden (zweite Stufe). Das ist in Fig.2A kapillarisch dargestellt.The function will now be explained with reference to FIG. In this, the force elements A with 23 and B with 24 are designated. They are single-acting solenoids, which means that they exert a pulling force on the attack points 6, 7. The four consecutive switching stages are created by pulling only the solenoid A (first stage), once only the solenoid B (fourth stage), once both (third stage) and once neither (second stage). This is shown capillary in Fig. 2A.
In Fig.3 sind die Kraftelemente 33, 34 doppeltwirkend, also doppeltwirkende Hydraulikzylinder oder distabile Solenoide. Da beide Stellungen der Kraftelemente 33, 34 stabil sind, sind sie mit minus 1 und plus 1 bezeichnet und die Zuordnung zu den einzelnen Schaltstufen ist in Fig.3A dargestellt. In der Variante der Fig. 4 ist von den beiden Kraftelementen 43, 44 das Kraftelement 44 mit einer von dem ersten Kraftelement abweichenden Bewegungsrichtung, hier gegenüber dieser um 180 Winkelgrade versetzt. Es sind aber auch andere Winkelversetzungen möglich. Insgesamt ist in allen Figuren die Wirkungsrichtung der Kraftelemente parallel und rechtwinkelig zum Hebel dargestellt. Davon kann in dem für die jeweilige Schaltbewegung erforderlichen Ausmaß abgewichen werden, ebenso wie mit der Form des Hebels und der Verhältnisse der Abstände 8, 10. Die körperliche Ausführung der Angriffspunkte 6, 7 und 9 kann den jeweiligen Erfordernissen gemäß beliebig gestaltet sein. Normalerweise werden an diesen Punkten Gelenke zu finden sein, gegebenenfalls mit einem geringen Spiel in Längsrichtung des Hebels 2.3, the force elements 33, 34 are double-acting, that is to say double-acting hydraulic cylinders or distable solenoids. Since both positions of the force elements 33, 34 are stable, they are denoted by minus 1 and plus 1 and the assignment to the individual switching stages is shown in FIG. 3A. In the variant of FIG. 4, of the two force elements 43, 44, the force element 44 is displaced with a movement direction that deviates from the first force element, here offset by 180 degrees. However, other angular misalignments are also possible. Overall, the direction of action of the force elements is shown parallel and at right angles to the lever in all the figures. This can be varied to the extent necessary for the respective switching movement, as well as with the shape of the lever and the ratios of the distances 8, 10. The physical design of the points of attack 6, 7 and 9 can be designed as desired in accordance with the respective requirements. Usually, joints will be found at these points, possibly with a slight play in the longitudinal direction of the lever 2.
Des weiteren kann die beschriebene Erfindung auch rekursiv angewendet werden. Damit ist gemeint, dass eines der Kraftelemente wieder durch eine erfindungsgemäße Anordnung mit zwei Kraftelementen ersetzt werden kann, wobei der Abgriffspunkt des Subsystemes mit dem zweiten Angriffspunkt 7 verbunden ist. Auf diese Weise ist die Zahl der Schaltstellungen auf acht erhöhbar. Furthermore, the described invention can also be applied recursively. This means that one of the force elements can again be replaced by an arrangement according to the invention with two force elements, the tapping point of the subsystem being connected to the second point of attack 7. In this way, the number of switch positions can be increased to eight.

Claims

Patentansprüche claims
1. Schaltvorrichtung, die besteht aus einem Hebel und aus einem Aktuator, wobei der Aktuator an dem Hebel angreift und an diesem ein in auf- einanderfolgende Stellungen zu bewegendes Schaltglied, dadurch gekennzeichnet, dass1. Switching device, which consists of a lever and an actuator, wherein the actuator engages on the lever and on this a switching element to be moved into successive positions, characterized in that
a) der Aktuator zwei Kraftelemente (3,4; 23,24; 33,34; 43,44) umfasst, die zwischen zwei Stellungen hin und her bewegbar sind und an Angriffs- punkten (6,7) des Hebels (2) angreifen, die einen ersten Abstand (8) voneinander haben, und dassa) the actuator comprises two force elements (3, 4; 23, 24; 33, 34; 43, 44) which can be moved back and forth between two positions and act on points of attack (6, 7) of the lever (2) that have a first distance (8) from each other, and that
b) das Schaltglied (11) an einem Abgriffspunkt (9) des Hebels (2) angreift, der ausserhalb der Verbindungsstrecke der beiden Angriffspunkte (6,7) in einem zweiten Abstand (10) von dem näheren Angriffspunkt (7) liegt.b) the switching element (11) acts on a tapping point (9) of the lever (2), which lies outside the connecting path of the two points of attack (6,7) at a second distance (10) from the closer point of attack (7).
2. Schaltvorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Bewegungsrichtungen der Kraftelemente (3,4; 23,24; 33,34; 43,44) ungefähr parallel sind.2. Switching device according to claim 1, characterized in that the directions of movement of the force elements (3,4; 23,24; 33,34; 43,44) are approximately parallel.
3. Schaltvorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass der Abgreifpunkt (9) auf der Verbindungslinie der beiden Angriffspunkte (6,7) liegt. 3. Switching device according to claim 1, characterized in that the tapping point (9) lies on the connecting line of the two points of attack (6,7).
4. Schaltvonichtung nach Anspruch 1, dadurch gekennzeichnet, dass der erste Abstand (8) angenähert gleich dem zweiten Abstand (10) ist.4. switching device according to claim 1, characterized in that the first distance (8) is approximately equal to the second distance (10).
5. Schaltvorrichtung nach Ansprach 1, dadurch gekennzeichnet, dass die Kraftelemente (33,34) doppeltwirkend sind.5. Switching device according spoke 1, characterized in that the force elements (33,34) are double-acting.
6. SchaltvoiTichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Kraftelemente (3,4; 23,24) einfachwirkend, und mittels eines Rraft- spreichers (12,13) in die jeweils andere Stellung bringbar sind.6. SchaltvoiTichtung according to claim 1, characterized in that the force elements (3,4; 23,24) single acting, and by means of a Rraft spreader (12,13) can be brought into the other position.
7. Schaltvonichtung nach Anspruch 4, dadurch gekennzeichnet, dass die Kraftelemente (3,4; 23,24) auf den Angriffspunkt des Hebels eine Zugkraft ausüben.7. switching device according to claim 4, characterized in that the force elements (3,4; 23,24) exert a tensile force on the point of application of the lever.
8. Schaltvonichtung nach Anspruch 4, dadurch gekennzeichnet, dass die Kraftelemente auf den Angriffspunkt des Hebels eine Druckkraft ausüben.8. switching device according to claim 4, characterized in that the force elements exert a compressive force on the point of application of the lever.
9. Schaltvonichtung nach Anspruch 4, dadurch gekennzeichnet, dass die Kraftelemente von einer Steuerlogik (5) aus angesteuerte Solenoide (3,4) sind.9. switching device according to claim 4, characterized in that the force elements of a control logic (5) are controlled solenoids (3,4).
10. Schaltvonichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Kraftelemente Fluidzylinder (33,34) sind. 10. Switching device according to claim 1, characterized in that the force elements are fluid cylinders (33, 34).
PCT/AT2003/000054 2002-02-18 2003-02-18 Shifting device with four shifting positions WO2003069193A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT1012002 2002-02-18
ATGM101/2002 2002-02-18

Publications (1)

Publication Number Publication Date
WO2003069193A1 true WO2003069193A1 (en) 2003-08-21

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Family Applications (1)

Application Number Title Priority Date Filing Date
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WO (1) WO2003069193A1 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB590175A (en) * 1944-06-26 1947-07-10 Albert Henry Somer Improvements in or relating to devices for the precision control of remote mechanism
GB1129737A (en) * 1967-04-12 1968-10-09 Ford Motor Co Gear selector arrangement
US5507197A (en) * 1993-07-08 1996-04-16 S.A.M.M. Societe D'applications Des Machines Motrices System for the assisted selection of the ratios of an automobile gearbox
US5878622A (en) * 1996-02-23 1999-03-09 Hydraulik--Ring Antriebs- und Steuerungstechnik GmbH Actuating device for automatically operating manual transmissions of vehicles
US6223617B1 (en) * 1997-09-12 2001-05-01 Hydraulik-Ring Gmbh Actuator for gearshift mechanisms of motor vehicles

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB590175A (en) * 1944-06-26 1947-07-10 Albert Henry Somer Improvements in or relating to devices for the precision control of remote mechanism
GB1129737A (en) * 1967-04-12 1968-10-09 Ford Motor Co Gear selector arrangement
US5507197A (en) * 1993-07-08 1996-04-16 S.A.M.M. Societe D'applications Des Machines Motrices System for the assisted selection of the ratios of an automobile gearbox
US5878622A (en) * 1996-02-23 1999-03-09 Hydraulik--Ring Antriebs- und Steuerungstechnik GmbH Actuating device for automatically operating manual transmissions of vehicles
US6223617B1 (en) * 1997-09-12 2001-05-01 Hydraulik-Ring Gmbh Actuator for gearshift mechanisms of motor vehicles

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