DE102012111908B4 - Power transmission device for a transmission with a shift assistance system - Google Patents

Abstract

Power transmission device (10) for a transmission with a shift assistance system, comprising a shift lever connection (20) for receiving a shifting force and a transmission connection (30) for transmitting the shifting force to the transmission, which are translationally movable relative to one another along a translation direction (T), wherein at least one spring device (40) with at least one spring element (46), a first spring stop (42) and a second spring stop (44) is arranged in the force path between the shift lever connection (20) and the transmission connection (30) and the two spring stops (42 , 44) can be moved translationally relative to the transmission connection (30) and relative to the shift lever connection (20), and wherein the transmission connection (30) has a first transmission stop (32) and a second transmission stop (34), which are mutually one in the translation direction (T) Have gear stop distance (G), and the shift lever connection (20) a first S Shift lever stop (22) and a second shift lever stop (24), which have a shift lever stop distance (S) from each other in the translation direction (T), and wherein the shift lever stop distance (S) and the transmission stop distance (G) is greater than the common extent of the two spring stops (42 , 44) in the translation direction (T), and wherein the spring element (40) the first spring stop (42) against the first gear stop (32) and the first gear lever stop (22) and the second spring stop (44) against the second gear stop (34 ) and the second shift lever stop (24) is subjected to a force, the shift lever connection (20) being designed to be non-rotatable with respect to the transmission connection (30).

Description

The present invention relates to a power transmission device for a transmission with a shift assistance system.

Power transmission devices for transmissions with a shift assistance system are known in principle. You will e.g. B. used in motorcycles to carry out a detection of the desired switching direction and pass on to a shift assistance system. This can be an advantage, since in this way the engine control can prepare the switching process. The preparation takes place in particular with reference to the load conditions in the transmission. For example, the throttle valve can be closed further in order to reduce the load in the transmission for the gearshift process. Known power transmission devices are accordingly preferably designed in such a way that they can distinguish two switching directions from one another and at the same time can forward the respective switching request to the switching assistance system. Elaborate constructive solutions are known for this. For example, rotary systems are in use that are able to detect the switching request in both directions.

Other switching devices for motorcycles are exemplary from the DE 10 2010 015 036 A1 or the DE 10 2010 015 037 A1 known.

A disadvantage of known power transmission devices for transmissions with a shift assistance system is the high level of complexity. Thus, when using rotary power transmission devices, a great deal of effort is required for production. In particular, very precise manufacturing tolerances must be observed in order to actually be able to provide the desired force ratios. It is easier and less expensive if a linear force transmission device with a linear relative movement between a shift lever connection and a transmission connection is provided. However, the known solutions of such linear power transmission devices have the disadvantage that they can often only reproduce and detect a single switching direction. For this purpose, a relative movement between a shift lever connection and a transmission connection is provided along a translation direction against a spring force. However, if detection in a further switching direction, in particular in the opposite switching direction, is desired, then either an additional force transmission device must be added or a second spring device must be used. In both cases, the complexity increases immensely. In addition, the use of two spring devices within a power transmission device leads to a significant deterioration in the so-called zero position, that is to say the position in which no shift request exists. There may even be a swinging or swinging up within this zero position, so that the gear lever connection and the transmission connection to one another oscillate against the two oppositely acting spring devices.

It is an object of the present invention to at least partially remedy the disadvantages described above. In particular, it is an object of the present invention to provide a power transmission device for a transmission with a shift assistance system, which combines the detection of the shift request in two directions with the most stable possible zero positioning in a cost-effective and simple manner.

The above object is achieved by a power transmission device with the features of claim 1. Further features and details of the invention emerge from the subclaims, the description and the drawings. Features and details that are described in connection with the power transmission device according to the invention also apply, of course, in connection with the disclosed assembly method and vice versa, so that with respect to the disclosure of the individual aspects of the invention, reference can always be made to one another.

A power transmission device according to the invention for a transmission with a shift assistance system has a shift lever connection for receiving a shifting force and a transmission connection for transmitting the shifting force to the transmission. The shift lever connection and the transmission connection can be moved translationally relative to one another along a translation direction. At least one spring device is arranged between the shift lever connection and the transmission connection. This spring device has at least one spring element a first spring stop and a second spring stop, the two spring stops being translationally movable relative to the transmission connection and relative to the shift lever connection. Furthermore, the transmission connection has a first transmission stop and a second transmission stop, which have a transmission stop distance from one another in the translation direction. In addition, the shift lever connection has a first shift lever stop and a second shift lever stop, which have a shift lever stop distance from one another in the translation direction. The gear lever stop distance and the gear stop distance are larger than the common extent of the two spring stops in the translation direction. The spring element applies a force to the first spring stop against the first gear stop and the first gear lever stop and the second spring stop against the second gear stop and the second gear lever stop. The shift lever connection is designed to be non-rotatable relative to the transmission connection.

In a power transmission device according to the invention, the switching force, for. B. from a shift pedal. The shift lever connection is mounted such that it can be moved in translation and can, for. B. have a wave-like shape. The gearbox connection is designed for the transmission of the shifting force to the gearbox and can also be designed to be essentially wave-like, at least in sections. In order to achieve a particularly compact design, the gear connection can be designed at least in sections like a pot, so that it can partially accommodate the shift lever connection within this pot. The direction of translation is preferably aligned along a straight line.

The arrangement of the spring device within the force path between the shift lever connection and the transmission connection is to be understood to mean that the spring device essentially only ensures the transmission of force from the shift lever connection to the transmission connection. In other words, the shifting force delivered to the shift lever connection must be transmitted completely to the transmission connection via the spring device. It can then be passed on to the gearbox from the gearbox connection as shifting force. There is therefore a relative movement between the shift lever connection and the transmission connection when the shifting force acts on the spring device and generates the corresponding spring action.

For the purposes of the present invention, spring stops are to be understood in particular as components which have corresponding spring stop surfaces. They can also be referred to as spring stop components. Each of these spring stops can have both an outward stop surface and an inward stop surface, the spring stop surfaces acting outward in the direction of gear lever stops and gear stops and the spring stop surfaces acting inward against the spring element. In other words, the two spring stops are pressed or acted upon in two different directions by the internal design of the spring element, as will be explained in more detail later.

The two spring stops are essentially freely translatable within the force transmission device. This means that the two spring stops can be moved relative to the transmission connection and relative to the shift lever connection. This is preferably done along the translation direction, so that there is parallel mobility between the gear connection, gear lever connection and the two spring stops.

The transmission connection and shift lever connection each have two stops, namely the first and the second transmission stop and the first and the second shift lever stop. These are spaced apart from one another with a defined gear stop distance and a defined shift lever stop distance. It is crucial according to the invention that the gear stop distance and the gear lever stop distance are greater than the common extent of the two spring stops in the translation direction. This means that there is sufficient freedom of movement between the two gear stops and the two gear lever stops, so that the two spring stops can actually be moved. In other words, the difference in the geometric extension of the two spring stops in the translation direction to the gear stop distance and the gear lever stop distance can also be referred to as the freedom of movement.

The essence of the present invention is, inter alia, that the spring device exerts a force on the two spring stops. This takes place in different directions, so that the first spring stop occurs in one direction against the first gear stop and the first gear lever stop and the second spring stop in the other direction against the second gear stop and the second gear lever stop. In other words, the spring element braces against the two spring stops in both directions, the applied spring force being supported on the outside against the first gear stop and the first gear lever stop and on the other side against the second gear stop and the second gear lever stop. This tensioned position can also be referred to as the zero position. As can already be seen from this description, this zero position is clearly defined, since the prestressing force of the spring element always assumes this position as a predefined zero position when there is no switching force at the shift lever connection. In this way, a system has a decisive advantage over known power transmission devices.

As is also clear from the above description, a further advantage of a power transmission device according to the invention is that only a single spring element is necessary to enable two directions of movement. In contrast to known power transmission devices with two spring elements, the preload force and thus the predefinition of the zero position can be carried out even more precisely in this way. The mode of movement and thus the mode of operation for the two switching directions in a power transmission device according to the invention are briefly explained below.

In the starting position, the two spring stops are completely subjected to the pretensioning force from the spring element. There is no shifting force at the shift lever connection. This means that the force of the spring element is supported against the first gear lever stop and the first gear stop on one side via the first spring stop and against the second gear stop and the second gear lever stop via the second spring stop. This can also be referred to as the zero position or starting position. If shifting is to take place in one direction, the corresponding shifting force with the associated shifting direction will be absorbed by the shift lever connection. This means that it is set in motion along its translational direction of translation. He exerts a force on the first spring stop via the first shift lever stop, which in turn is supported via the spring element on the second spring stop and in particular against the second gear stop. The greater the switching force, the more the spring element is compressed. This compression means moving the first spring stop towards one another onto the second spring stop with compression of the spring element. With this compression of the spring element in this switching direction, the first spring stop is released from the first gear stop and at the same time the second shift lever stop is released from the second spring stop. A force path thus arises which runs from the gear lever connection via the first gear lever stop, the first spring stop, the spring element, the second spring stop and the second gear stop to the gear connection. A relative movement takes place in the translational direction between the shift lever connection and the transmission connection against the spring force of the spring element. This translational movement can be detected and the fact of the relative movement and at the same time also the direction of the relative movement can be passed on to a switching assistance system. This makes it possible to detect the shift request in one direction. If the user of a power transmission device according to the invention releases the switching force again, the entire system moves back to the starting position, that is to say the zero position, without the switching force, driven solely by the compression of the spring element.

If the shift request is now to be detected in an opposite direction via the power transmission device, this process starts again in the opposite direction by absorbing the shifting force at the shift lever connection. It can be differentiated z. B. between pressing the shift lever connector and pulling the shift lever connector along the translation direction. If a shift force is now absorbed at the shift lever connection in the opposite direction, a new force path is in turn formed within the force transmission device. Now this force, e.g. B. by pulling the shift lever connection, transferred to the second spring stop via the second shift lever stop. This force will lead to compression in the spring element, which in turn is supported on the opposite side on the first spring stop. The force path is completed by supporting the first spring stop on the first gear stop. In this switching direction, the contact points between the first spring stop and the first shift lever stop and between the second spring stop and the second gear stop are released accordingly. In this case, there is a relative movement between the shift lever connection and the transmission connection in the opposite direction, so that here, too, a detection of the shift request and the shift direction can be passed on to the shift assistance system.

As can be seen from the above explanation of the two functions, the shift request and the shift direction can be detected by means of a single spring element in two opposite directions along the translation direction. At the same time, a return to a defined zero position is automatically possible, with a single spring element being sufficient in the design. As can also be seen, this becomes effective due to the free translational mobility of the two spring stops, the application of force to the spring element designed according to the invention and the four different stops, namely the two gear stops and the two switching stops. It is particularly important that the correlation according to the invention of the gear stop distance and the gear lever stop distance to the geometrical extent of the two spring stops is present for a sufficient movement play.

For the purposes of the present invention, the spring element can essentially be any be trained and z. B. a coil spring, a leaf spring, an elastomer or a plate spring. The respective connections, that is to say the transmission connection and / or the shift lever connection, can have a connection section which is designed to absorb or transmit the shifting force. This can e.g. B. be a spherical head. An arrangement in the shift lever or between the shift lever and transmission shift shaft is possible.

A further advantage of a power transmission device according to the invention is that a single spring characteristic for both switching directions is also made available with a single spring element. The effect of this common spring characteristic leads to the fact that the user can expect the same, namely the identical spring characteristic in both switching directions. Even if the spring characteristic changes over time due to wear, the spring characteristic will remain identical in both directions, since in both cases the compression of the identical spring element is involved.

It can be advantageous if, in the case of a power transmission device according to the invention, the translation direction runs along a straight line and in particular the spring stops can also be moved along this translation direction. The direction of translation along a straight line simplifies the construction of a power transmission device according to the invention. Simple plain bearings with essentially flat surfaces or simply curved surfaces can thus be provided. Of course, however, it is in principle also possible that a translation direction with a curved course can be provided for complicated applications. If the spring stops are designed to be movable along the same translation direction, as is the case for the transmission connection and shift lever connection, then all movable components can be displaced in parallel. This leads to a further improvement in the compactness and simplicity of the design of the power transmission device according to the invention.

A further advantage is achieved if, in a power transmission device according to the invention, the gear stop distance and the gear lever stop distance are of the same size or substantially the same size. With substantially equal distance values for the gear stop distance and the gear lever stop distance, it is ensured that in the zero position the two spring stops also abut both stops of the gear stop and the gear lever stop. This means that there is a double support in the zero position, so to speak. In particular, at least parts of the stops, in particular the gear stop distance and / or the gear lever stop distance, can be adjusted after assembly, so that this equality between gear stop distance and gear lever stop distance can be established particularly easily and inexpensively. In addition, when using a defined spring element, the variation of the gear stop distance and the shift lever stop distance can be used to adjust the pretensioning force of the spring element to the two spring stops. This is possible, in particular, via thread mechanisms, so that a change in the pretensioning force can be achieved in a particularly cost-effective and simple manner.

A further advantage is achieved if, in the case of a power transmission device according to the invention, a sensor device is provided which is designed to detect the translational relative movement of the shift lever connection relative to the transmission connection. This means that a sensor signal is generated via the sensor device, which can act as an input variable for a switching assistance system. In particular, this can be an electrical signal. For example, a Hall sensor and an associated magnetic signal transmitter can be used in order to be able to recognize the actual translation movement and the translation movement direction. The sensor device thus serves as part of the control loop of the switching assistance system.

It is also advantageous if, in the case of a power transmission device according to the invention, the spring device surrounds the shift lever connection at least in sections, in particular in the form of a spiral spring. This means that an even simpler and more compact design is possible. Surrounding the spring device, in particular the spring element, also leads to a defined translation movement, since z. B. a guide of the spring device on an outer surface of the shift lever connection and on an inner surface of a pot-shaped transmission connection is possible. For the spring device designed in this way, the two spring stops can be essentially sleeve-like and can be pushed onto the shift lever connection. This can also be referred to as a radial layer structure, which makes the power transmission device according to the invention even more compact.

It is also advantageous if, in the case of a power transmission device according to the invention, the shift lever connection is wave-shaped, in particular with a round cross section. This facilitates the manufacturability of a power transmission device according to the invention. This also leads to a reduced embodiment in terms of the necessary installation space. Can also on this A particularly simple, constructive assembly method can be guaranteed. At least one of the two shift lever stops can be designed as a shaft shoulder. In an interior of a housing or in an interior of a cup-shaped gear connection, this wave-shaped form of the shift lever connection can run at least in sections.

It can also be advantageous if, in the case of a power transmission device according to the invention, at least one of the two shift lever stops is designed in the form of a stop component, in particular in the form of a sleeve and / or a nut. When the shift lever connection is wave-shaped, z. B. the first gear lever stop as a shaft shoulder. The spring device can then be pushed on by an assembly process until the first spring stop strikes the first shift lever stop. On the opposite side, the second shift lever stop can then be formed and braced directly or indirectly via a sleeve via a nut. In this way, a defined pretensioning force can be set on the spring element in particular via an external thread on the shift lever connection in cooperation with the internal thread of the nut. A variation of the gear lever stop distance can also be carried out in a simple and cost-effective manner in this way, which in turn has an effect on the actual functioning of the present invention.

It is also advantageous if, in the case of a power transmission device according to the invention, the transmission connection is at least partially cup-shaped. A pot-like formation is to be understood as a cavity in the interior, which is closed on one side by a base section. A shaft section, which is provided as a connection section of the transmission connection for transmitting the switching force, can be arranged on this bottom section on the outside. The compactness of the power transmission device according to the invention can be further improved by the pot-like design. In particular, a correlation with the translation direction of the shift lever connection can take place in the axial direction of the pot section, so that the shift lever connection is accommodated at least in sections within the pot-like configuration of the transmission connection. Of course, the transmission connection can also be designed in several parts.

In the case of a power transmission device according to the preceding paragraph, it can be advantageous if the transmission connection has a first pot-like housing component and a second pot-like housing component, which are connected to one another, in particular screwed together. The first and the second gear stop are preferably formed on two different components, that is, the first gear stop on the first pot-like housing component and the second gear stop on the second pot-like housing component. A variation of the gear stop distance can thus take place again, so that the size of the gear stop distance can be adapted to the size of the gear lever stop distance. A change or variation in the pretensioning force of the spring element can also be achieved in this way, as has already been explained with regard to the shift lever stop distance.

It can also be advantageous if a force transmission device according to the invention is further developed such that the two spring stops each have a limit stop, which limit the movement of the spring stops against the spring force in the translation direction. The two limit stops of the two spring stops thus strike one another when the spring stops move relative to one another with compression of the spring element at a specific geometrically predefined point in time. This is the end of the maximum freedom of movement. This ensures that a defined end of movement is provided if a sufficient force balance between the counterforce of the connected transmission and the spring element is not achieved at an earlier point in time. In addition, the limit stop, which z. B. can be provided with a damping coating for the stop, a defined end of the detection process can be set. However, such a provision of the limit stop in the sense of the present invention is not necessarily necessary, but is accordingly only part of an advantageous embodiment.

A power transmission device according to the invention can be further developed such that a sensor device is provided which has a sensor unit on the transmission connection and a signal transmitter on the shift lever connection. As has already been explained in general, this sensor device is provided for generating an input variable for a control loop of a switching assistance system. In this embodiment, the sensor unit and signal transmitter are separated from one another and arranged on the one hand at the transmission connection and on the other hand at the shift lever connection. In other words, together with the transmission connection and the shift lever connection, the sensor unit and signal transmitter also move relative to one another along the translation direction. In particular, the signal transmitter is a magnet or has a magnetic one Material on, while the sensor unit is designed as a Hall sensor. The sensor can, for. B. injected into a plastic component and thus protected from environmental influences. In particular, the sensor unit is already part of the transmission connection here.

• - Aufschieben einer Federvorrichtung mit zumindest einem Federelement, einem ersten Federanschlag und einem zweiten Federanschlag auf den Schalthebelanschluss bis zum Anschlag des ersten Federanschlags an einem ersten Schalthebelanschlag,
• - Befestigen eines zweiten Schalthebelanschlags an dem Schalthebelanschluss in einer den zweiten Federanschlag kontaktierenden Position,
• - Einschieben dieser Unterbaugruppe in eine topfartiges erstes Gehäusebauteil des Getriebeanschlusses bis zum Anschlag des ersten Federanschlags am ersten Getriebeanschlag,
• - Befestigen eines topfartigen zweiten Gehäusebauteils des Getriebeanschlusses bis zum Anschlag des zweiten Getriebeanschlags am zweiten Federanschlag.

An assembly method for assembling a power transmission device with a shift lever connection and a transmission connection is disclosed, in particular according to the present invention, comprising the following steps:

• - Sliding a spring device with at least one spring element, a first spring stop and a second spring stop onto the shift lever connection until the first spring stop stops at a first shift lever stop,
• Securing a second shift lever stop to the shift lever connection in a position contacting the second spring stop,
• Inserting this subassembly into a pot-like first housing component of the gear connection up to the stop of the first spring stop on the first gear stop,
• - Fastening a pot-like second housing component of the gear connection up to the stop of the second gear stop on the second spring stop.

If a power transmission device according to the invention is produced by an assembly method, the same advantages are achieved as have been explained in detail with reference to a power transmission device according to the invention. In particular, a power transmission device according to the invention can be produced particularly easily and inexpensively using an assembly method.

An assembly method can be developed in such a way that the pretensioning of the spring element is set by adjusting at least one of the shift lever stops and / or the gear stops. As has already been explained with reference to the power transmission device, z. B. a change in the shift lever stop distance and / or the gear stop distance can be generated via threaded screw connections. This change in the respective distance acts directly on the preload of the spring element. The two distances, the gear lever stop distance and the gear stop distance and / or the pretensioning of the spring element can thus be matched.

• 1 eine Ausführungsform einer erfindungsgemäßen Kraftübertragungsvorrichtung in Nullposition,
• 2 die Ausführungsform der 1 in einer rechten Schaltposition,
• 3 die Ausführungsform der 1 und 2 in der Nullposition,
• 4 die Ausführungsform der 1 bis 3 in einer linken Schaltposition und
• 5 eine Ausführungsform einer erfindungsgemäßen Kraftübertragungsvorrichtung in ungeschnittener Darstellung.

The present invention is explained in more detail with reference to the accompanying drawing figures. The terms "left", "right", "top" and "bottom" used here refer to an alignment of the drawing figures with normally readable reference symbols. They show schematically:

• 1 an embodiment of a power transmission device according to the invention in the zero position,
• 2 the embodiment of the 1 in a right switch position,
• 3 the embodiment of the 1 and 2 in the zero position,
• 4 the embodiment of the 1 to 3 in a left switch position and
• 5 an embodiment of a power transmission device according to the invention in an uncut view.

In 1 becomes an embodiment of a power transmission device according to the invention in the zero position 10 shown. In this way it is true 1 in the representation with the 3 match.

The power transmission device 10 the 1 has a shift lever connection 20 for absorbing a shifting force and a gear connection 30 for the transmission of the switching force. As can be seen, there are shift lever connections 20 and gear connection 30 to each other along a translation direction T in two directions, i.e. in 1 left and right, movable to each other. This mobility is effected by influencing a spring device 40 , which is within the force path between the shift lever connection 20 and gear connection 30 is trained.

Along the power path starting from the shift lever connection 20 has the shift lever connection 20 a first gear lever stop 22 and the gearbox connection 30 a first gear stop 32 on. Against these two attacks 22 and 32 the first spring stop is supported 42 the spring device 40 from. Following the force path, the opposite side of the first spring stop is used 42 a spring element 46 in the form of a spiral spring. The opposite support of this spring element 46 takes place on the inside of a second spring stop, which is also cup-shaped here 44 , This second spring stop 44 in turn supports itself outwards, i.e. to the right, against a second gear stop 34 and a second gear lever stop 24 from. This is the zero position of a power transmission device according to the invention.

As the embodiment of the 1 can be removed is the first gear lever stop 22 designed as a shaft shoulder. The opposite second gear lever stop 24 is over a sleeve 26a with a mother 26b together a stop component 26 trains, tense. Outside on the sleeve 26a there is a signal transmitter 54 in the form of a magnet, which with a sensor unit 52 a sensor device 50 correlated.

The gearbox connection 30 shows the first gear stop 32 in a pot-like first housing component 36 on while the second gear stop 34 in a second pot-like housing component 38 is provided. The two housing components 36 and 38 are screwed together.

Again 1 can be seen, the gear stop distance G and the gear lever stop distance S identical to each other, and in particular through the appropriate adjustment via the thread with the nut 26b or the thread between the first housing component 36 and the second housing component 38 adapted to each other. This adjustment also has a direct effect on the preload of the spring element 46 ,

Based on 2 to 4 will now briefly the operation of a power transmission device according to the invention 10 explained.

In 3 is the zero position, as already in 1 is shown. The spring device 40 strikes with the first spring stop 42 both at the first gear stop 32 , as well as at the first gear lever stop 22 on. Next is the application of force with the spring element 46 the second spring stop 44 at the same time against the second gear lever stop 24 and the second gear stop 34 to press. If a user now requests a shift, the shift lever connection becomes available from right to left via an applied shifting force 20 of 3 into a position like that 2 shows. So there is a relative movement from left to right along the translation direction T , The first spring stop is released 42 from the first gear stop 32 , because it is through the first gear lever stop 22 is taken to the right. This takes place under compression of the spring element 46 because the second spring stop 44 in its relative position to the gearbox connection 30 remains and continues against the second gear stop 34 supported. To make this possible, the second gear lever stop is released 24 from the second spring stop 44 , The end position is in 2 shown, this end position by striking two limit stops 42a and 42b is defined together.

4 shows the end position with the opposite switching direction request. This resulted in a pulling force along the direction of translation T on the gear lever connection 20 applied to the left. When pulling the gear lever connection 20 the second gear lever stop moves to the left 24 the second spring stop 44 from right to left with compression of the spring element 46 With. The resulting increase in spring force is based on the first spring stop 42 at the first gear stop 32 from. This is done by loosening the second spring stop 44 from the second gear stop 34 and at the same time releasing the first gear lever stop 22 from the first spring stop 42 , Here, too, the end position is reached by striking the two same limit stops 42a and 44a defined together.

5 shows an illustration of an embodiment of a power transmission device according to the invention 10 from the outside. Here you can clearly see that the pot-like design of the gear connection 30 a particularly compact design is achieved. The gearbox connection 30 thus simultaneously forms a housing for the power transmission device 10 , The sensor device 50 is essentially cast in a plastic component, so that the sensor unit is arranged in the defined position relative to the signal transmitter. In this way, the switching request and the switching direction can be clearly recognized.

The above explanation of the embodiments describes the present invention exclusively in the context of examples. Of course, individual features of the embodiments, if technically meaningful, can be freely combined with one another without leaving the scope of the present invention.

LIST OF REFERENCE NUMBERS

10

Power transmission device

20

lever connection

22

first gear lever stop

24

second gear lever stop

26

stop component

26a

shell

26b

mother

30

transmission connection

32

first gear stop

34

second gear stop

36

first pot-like housing component

38

second pot-like housing component

40

spring device

42

first spring stop

42a

limiting stop

44

second spring stop

44a

limiting stop

46

spring element

50

sensor device

52

sensor unit

54

signaler

G

Transmission stop distance

S

Lever stop distance

T

Translation direction

Claims (11)

Power transmission device (10) for a transmission with a shift assistance system, comprising a shift lever connection (20) for receiving a shifting force and a transmission connection (30) for transmitting the shifting force to the transmission, which are translationally movable relative to one another along a translation direction (T), wherein at least one spring device (40) with at least one spring element (46), a first spring stop (42) and a second spring stop (44) is arranged in the force path between the shift lever connection (20) and the transmission connection (30) and the two spring stops (42 , 44) can be moved translationally relative to the transmission connection (30) and relative to the shift lever connection (20), and wherein the transmission connection (30) has a first transmission stop (32) and a second transmission stop (34), which are mutually one in the translation direction (T) Have gear stop distance (G), and the shift lever connection (20) a first S Shift lever stop (22) and a second shift lever stop (24), which have a shift lever stop distance (S) from each other in the translation direction (T), and wherein the shift lever stop distance (S) and the gear stop distance (G) is greater than the common extent of the two spring stops (42 , 44) in the translation direction (T), and wherein the spring element (40) the first spring stop (42) against the first gear stop (32) and the first gear lever stop (22) and the second spring stop (44) against the second gear stop (34 ) and the second shift lever stop (24) is subjected to a force, the shift lever connection (20) being designed to be non-rotatable with respect to the transmission connection (30). Power transmission device (10) after Claim 1 , characterized in that the translation direction (T) runs along a straight line and in particular the spring stops (42, 44) can also be moved along this translation direction (T). Power transmission device (10) according to one of the preceding claims, characterized in that the gear stop distance (G) and the gear lever stop distance (S) are of the same size or substantially the same size. Power transmission device (10) according to one of the preceding claims, characterized in that a sensor device (50) is provided which is designed for the detection of the translational relative movement of the shift lever connection (20) relative to the transmission connection (30). Power transmission device (10) according to one of the preceding claims, characterized in that the spring device (40) surrounds the shift lever connection (20) at least in sections, in particular the spring element (46) is designed as a spiral spring. Power transmission device (10) according to one of the preceding claims, characterized in that the shift lever connection (20) is wave-shaped, in particular with a round cross section. Power transmission device (10) after Claim 6 , characterized in that at least one of the two shift lever stops (22, 24) is designed in the form of a stop component (26), in particular in the form of a sleeve (26a) and / or a nut (26b). Power transmission device (10) according to one of the preceding claims, characterized in that the gear connection (30) is at least sectionally cup-shaped. Power transmission device (10) after Claim 8 , characterized in that the gear connection (30) has a first pot-like housing component (36) and a second pot-like housing component (38), which are connected to one another, in particular screwed. Power transmission device (10) according to any one of the preceding claims, characterized in that the two spring stops (42, 44) each have a limit stop (42a, 44a), which the movement of the spring stops (42, 44) against the spring force in the translation direction (T) limit. Power transmission device (10) according to one of the preceding claims, characterized in that a sensor device (50) is provided which a sensor unit (52) on Gearbox connection (30) and a signal generator (54) on the shift lever connection (20).

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