Patent Publication Number: US-2020291709-A1

Title: Device for protection against entrapment for a door for a vehicle, door system for a vehicle and method for producing a device for protection against entrapment for a door for a vehicle

Description:
CROSS REFERENCE AND PRIORITY CLAIM 
     Field 
     Disclosed embodiments relate to a device for protection against entrapment for a door for a vehicle, to a door system for a vehicle and to a method for producing a device for protection against entrapment for a door for a vehicle. 
     BACKGROUND 
     Detection possibilities where a sensor system, such as, for example, safety switch strips, is installed after extrusion of a finger protection profile are most commonly known to date to prevent entrapment and possibly even a person being dragged along by a door of a vehicle. 
     SUMMARY 
     Against that background, disclosed embodiments create an improved device for protection against entrapment for a door for a vehicle, an improved door system for a vehicle and an improved method for producing a device for protection against entrapment for a door for a vehicle. 
     Disclosed embodiments provide a device for protection against entrapment for a door for a vehicle, by a door system for a vehicle and by a method for producing a device for protection against entrapment for a door for a vehicle. 
    
    
     
       BRIEF DESCRIPTION OF THE FIGURES 
       Exemplary embodiments of the approach presented here are explained in more detail in the following description with reference to the figures, in which: 
         FIG. 1  shows a schematic representation of a vehicle with a door system according to an exemplary embodiment; 
         FIG. 2  shows a flow chart of a method for . . . according to an exemplary embodiment; 
         FIG. 3  shows a schematic representation of a device according to an exemplary embodiment; 
         FIG. 4  shows a schematic representation of a device according to an exemplary embodiment; 
         FIG. 5  shows a schematic representation of devices according to an exemplary embodiment; 
         FIG. 6  shows a schematic representation of devices according to an exemplary embodiment; 
         FIG. 7  shows a schematic representation of devices according to an exemplary embodiment; 
         FIG. 8  shows a schematic representation of devices according to an exemplary embodiment; 
         FIG. 9  shows a schematic representation of devices according to an exemplary embodiment; 
         FIG. 10  shows a schematic representation of a part portion of a device according to an exemplary embodiment; 
         FIG. 11  shows a schematic representation of a part portion of a device according to an exemplary embodiment; 
         FIG. 12  shows a schematic representation of a part portion of a device according to an exemplary embodiment; 
         FIG. 13  shows a schematic representation of a part portion of a device according to an exemplary embodiment; 
         FIG. 14  shows a schematic representation of devices according to an exemplary embodiment; 
         FIG. 15  shows a schematic representation of devices according to an exemplary embodiment; 
         FIG. 16  shows a schematic representation of a part portion of a device according to an exemplary embodiment; 
         FIG. 17  shows a schematic representation of a part portion of a device according to an exemplary embodiment; 
         FIG. 18  shows a schematic representation of a device according to an exemplary embodiment; 
         FIG. 19  shows a schematic representation of a device according to an exemplary embodiment; 
         FIG. 20  shows a schematic representation of molded parts according to an exemplary embodiment; 
         FIG. 21  shows a schematic representation of molded parts according to an exemplary embodiment; 
         FIG. 22  shows a schematic representation of molded parts according to an exemplary embodiment; 
         FIG. 23  shows a schematic representation of molded parts according to an exemplary embodiment; 
         FIG. 24  shows a schematic representation of a device according to an exemplary embodiment; 
         FIG. 25  shows a schematic representation of a device according to an exemplary embodiment; 
         FIG. 26  shows a schematic representation of a device according to an exemplary embodiment; 
         FIG. 27  shows a schematic representation of a device according to an exemplary embodiment; 
         FIG. 28  shows a schematic representation of a device according to an exemplary embodiment; and 
         FIG. 29  shows a schematic representation of a device according to an exemplary embodiment. 
     
    
    
     DETAILED DESCRIPTION 
     According to embodiments, in particular a switching element, with an extrusion profile with an extruded switching element or a switching element integrated into an extrusion profile, can be provided for integrated protection against entrapment or integrated entrapment detection. In contrast to detection possibilities for protection against entrapment where a sensor system is installed after extrusion of a finger protection profile, in the case of the device, a switching element can already be directly integrated into the extrusion profile or can be extruded with the extrusion profile. In this case, the extrusion profile can include, in particular, regions with increased rigidity and regions with reduced rigidity as well as a specifically designed geometry in order to be able to detect entrapped objects in a more reliable manner Consequently, for example, a probability of an entrapment or even of a person being dragged along by an on-coming vehicle is able to be reduced. In this connection, in particular a reliable detection of material can be realized. 
     According to embodiments, an integral design can be advantageously realized which enables a reduction in components as multiple functions, such as the protection against entrapment, entrapment detection and “entrapment pain” can be fused in one component. A simple operating principle is provided by an encapsulated, maintenance-free system which is resistant to external influences. Evaluation with existing door controls is possible. A malfunction can be detected and in certain realization variants there is an increased protection against vandalism. In addition, the device can be mounted on a door in a simple manner as a result of a mounting web formed at the same time. In particular in the case of double-leaf doors, by having one device in each case on each door leaf, it is also possible, consequently, to realize two equal-value switching safety strips or molded parts which both, in the case of the required defined events, such as, for example, entrapment of a cuboid or of another three-dimensional object and also of a piece of material, switch at different times and in a reliable manner and consequently are also able to reduce a probability of a person being dragged along as a result of secure and timely detection. 
     A device for protection against entrapment for a door for a vehicle includes the following features: 
     an extrusion profile, wherein the extrusion profile is extruded from an elastomer material, wherein the extrusion profile includes a door leaf wall which, with the device in a state mounted on the door, faces an impact edge of a door leaf of the door, a sealing wall which is arranged opposite with reference to the door leaf wall and an actuating plunger for transmitting a compression force into the extrusion profile, wherein the actuating plunger is arranged on the sealing wall and extends away from the door leaf wall along a transverse axis of the extrusion profile; and 
     at least one switching element for detecting a compression of the extrusion profile, wherein the at least one switching element is arranged between the door leaf wall and the actuating plunger in the region of the actuating plunger. 
     The vehicle, for example, can be a vehicle for passenger transport. In particular, the vehicle can be realized as a rail vehicle. The system can be a door system of the vehicle. The device can also be designated as a finger protection strip. The features of the extrusion profile can be continuously extrudable at the same time. The door leaf wall and the sealing wall can include extension planes which are parallel or approximately parallel to one another. The extrusion profile can include an extrusion axis which can extend along the extension planes and normally to the transverse axis. The switching element can include an electrically conductive material and at least two electrical conductors. As an alternative to this, the switching element can include at least one fiber optic cable or other devices suitable for detecting the compression. The actuating plunger can be realized in order, on contact with an entrapped object, to be set into a movement with at least one movement component along the transverse axis, and, in addition to this or as an alternative to it, to be offset transversely to the transverse axis with at least one movement component. The compression force is transmittable in particular to the switching element via the actuating plunger. The actuating plunger can extend over its entire length or in part along the transverse axis. The at least one switching element can be integrated into the extrusion profile and can consequently be extrudable and able to be cut to length with the extrusion profile. 
     According to an embodiment, the device can include a mounting web. The mounting web can extend along the transverse axis of the extrusion profile. In this case, the door leaf wall and the sealing wall can be connected together via the mounting web. In this connection, the mounting web can be arranged offset with respect to the actuating plunger along an extension plane of the sealing wall. The mounting web can be aligned normally with reference to the extension planes. The mounting web can extend over its entire length or in part along the transverse axis. The extrusion profile can include a cavity, which can be divided at least by the mounting web into at least two chambers between the door leaf wall and the sealing wall. The advantage of such an embodiment is that a rigidity of the extrusion profile can be increased and when the device is mounted on the door, a force flow can be directed past the switching element. 
     As an alternative to this, the extrusion profile can be formed as a solid profile. In this case, a volume of the extrusion profile can be realized totally or at least in part by the elastomer material between the door leaf wall and the sealing wall. The advantage of such an embodiment is that a rigidity of the extrusion profile can be increased and when the device is mounted on the door, a force flow can be directed past the switching element. 
     In addition, the switching element can include a first electrically conductive portion and a second electrically conductive portion which can be separated from one another by a space which is compressible by the compression force. Each electrically conductive portion can include an electrically conductive material and at least one electrical conductor. The advantage of such an embodiment is that the compression can be detected in a simple and certain manner. 
     In this case, the first portion can be arranged on the sealing wall facing the door leaf wall in the region of the switching plunger. The second portion can be arranged between the first portion and the door leaf wall with reference to the transverse axis. As an alternative to this, the space which is compressible by the compression force can extend along the transverse axis. The advantage of such an embodiment is that the electrically conductive portions can be formed suitably depending on the requirement. In this case, it can be achieved that the switching element only switches, for example, when a force acts on the actuating plunger in a predefined direction. 
     In this case, the second portion of the switching element can also be arranged on a partition wall or as a part portion of a partition wall between the sealing wall and the door leaf wall. In this connection, the partition wall can be connected to the mounting web and the sealing wall. The advantage of such an embodiment is that a compression already triggered by low compression forces is able to be detected in a reliable manner. 
     In addition, in this connection, a ratio between a dimension of the actuating plunger along the transverse axis and a dimension of the first portion of the switching element along the transverse axis can include a predefined value. The advantage of such an embodiment is that a sensitivity of a detection of the compression is able to be adjusted on the manufacturing side using the ratio depending on the provided application case of the device. 
     According to an embodiment, the extrusion profile can include a sealing surface and a sealing element. In this connection, the sealing surface and the sealing element can be connected to the sealing wall and can extend away from the door leaf wall. In this case, the actuating plunger can be arranged between the sealing surface and the sealing element. In other words, the sealing surface and the sealing element can be formed as projection portions which extend away from the sealing wall in the direction of the door leaf wall. The advantage of such an embodiment is that a complementary interaction between the device and a further device is able to be achieved. In addition, in this connection, an advantageous pressing tolerance of two devices relative to one another can be achieved along the transverse direction. In the case of a complementary interaction, the sealing surface of a first device and the sealing element of a second device can interact and the sealing element of the first device and the sealing surface of the second device can interact. 
     In this case, the sealing surface can include an extension plane which can be parallel to the extension plane of the sealing wall. In this connection, a dimension of the sealing surface transversely to the transverse axis can be greater than a predefined admissible offset of the door transversely to the transverse axis with reference to a reference object. A transverse alignment can also include an orthogonal alignment. The advantage of such an embodiment is that even in the case of an offset of a door and consequently a device attached to the door relative to a required position, reliable sealing of a door gap is able to be achieved. 
     In particular, in this case, the sealing element can be formed as a sealing lip, a sealing balloon, a double balloon and, in addition to this or as an alternative to it, a double lip. 
     The advantage of such an embodiment is that a reliable sealing of a door gap is able to be achieved. 
     In this connection, an end of the actuating plunger remote from the sealing wall can also be at a first distance to the sealing wall. In addition, an end of the sealing element remote from the sealing wall can also be at a second distance to the sealing wall. In addition, an end of the sealing surface remote from the sealing wall can be at a third distance to the sealing wall. In this case, the first distance can be smaller than the second distance and greater than the third distance. As an alternative to this, the first distance can be greater than the second distance and smaller than the third distance. Once again as an alternative to this, the first distance, the second distance and the third distance can be the same size within a tolerance range. The advantage of such an embodiment is that a pressing tolerance can at least be maintained also with reliable sealing of a door gap. In addition, the distances can be chosen in a suitable manner depending on the requirement. 
     According to an embodiment, the device can have at least one reinforcement element. In this connection, the reinforcement element can be integrated into the extrusion profile. The reinforcement element can be integrated in the actuating plunger and, in addition to this or as an alternative to it, in a part portion of the extrusion profile adjacent to the sealing wall. The reinforcement element can be realized as a metal wire, metal band or the like. In this case, the reinforcement element can function as a device for protection against cuts, as a device for protection against vandalism or the like. The advantage of such an embodiment is that certain protection against damage, willful destruction, vandalism and the like for the device can be provided in a simple manner Consequently, entrapment detection can still be rendered even after a confirmation test. The reinforcement element can serve for increasing the rigidity of at least a part portion of the extrusion profile and can consequently also bring about vandalism protection against an object being pressed transversely to the transverse axis against the extrusion profile or vandalism protection against the switching element being actuated as a result of pressure with an object transversely to the transverse axis. 
     In addition, the extrusion profile can include an attachment portion for attaching the device to the door. In this connection, the attachment portion can be connected to the door leaf wall and can extend along the transverse axis in the direction away from the sealing wall. In particular, the attachment portion can be connected to the door leaf wall in the region of the mounting web. In other words, the attachment portion and the mounting web can be arranged in a collinear manner. The advantage of such an embodiment is that the device can be attached in a simple and secure manner to a door and compression of the extrusion profile in the region of the at least one switching element can be avoided. 
     A door system for a vehicle includes the following features: 
     a door having at least one door leaf, wherein an embodiment of the device named above is arranged on an impact edge of at least one door leaf. 
     In connection with the door system, at least one device, which is an embodiment of the device named above, can be advantageously deployed or used in order to realize protection against entrapment. In this case, a device can be attached or can become attached directly to a door leaf of the door, to a seal or to a profile element. If the door is designed with two door leaves, a first device can be arranged on a first door leaf and a second device can be arranged on a second door leaf. The first device and, in addition to this or as an alternative to it, the second device can be an embodiment of the device named above. The first device can also be formed differently relative to the second device. 
     According to an embodiment, the door system can also include at least one molded part. The molded part can function as a transition between a door seal of a door leaf of the door and the device. In this case, the molded part can be connectable or connected to the door leaf, to the door seal and, in addition to this or as an alternative to it, to the device. The advantage of such an embodiment is that using at least one such molded part, both a pressing along the transverse axis of the device and an offset transversely to the transverse axis with regard to a movement of the door leaf is able to be reduced or restricted. 
     A method for producing a device for protection against entrapment for a door for a vehicle includes the following steps: 
     extrude elastomer material to form an extrusion profile, wherein the extrusion profile includes a door leaf wall which, with the device in a state mounted on the door, faces an impact edge of a door leaf of the door, a sealing wall which is arranged opposite with reference to the door leaf wall and an actuating plunger for transmitting a compression force into the extrusion profile, wherein the actuating plunger is arranged on the sealing wall and extends away from the door leaf wall along a transverse axis of the extrusion profile; 
     integrate at least one switching element into the extrusion profile for detecting a compression of the extrusion profile, wherein the at least one switching element is arranged between the door leaf wall and the actuating plunger in the region of the actuating plunger; and 
     cut the extrusion profile to a desired length, wherein the switching element is cut to length with the extrusion profile. 
     An embodiment of the device named above can be advantageously produced by realizing the method for production. 
     According to an embodiment, the extrusion operation and the integration operation can be carried out jointly. In this case, the switching element can be extruded with the elastomer material. The advantage of such an embodiment is that an encapsulated, maintenance-free or low-maintenance component which is resistant to harmful external influences is able to be provided. 
     In the integration operation, the switching element and, in addition to this or as an alternative to it, a further switching element can also be vapor deposited onto the elastomer material. The advantage of such an embodiment is that switching elements can be formed in a simple and quick manner according to requirement. 
       FIG. 1  shows a schematic representation of a vehicle  100  having a door system  110  according to an exemplary embodiment. The vehicle  100 , according to the exemplary embodiment shown here, is a rail vehicle. The door system  110  includes a door  112  having, purely as an example, two door leaves  114 . In addition, the door system  110  includes, purely as an example, two devices  120  for protection against entrapment. Each device  120  is arranged on its own door leaf  114 . In this case, the devices  120  are arranged on impact edges of the door leaves  114  facing one another. In other words, a door gap between the two door leaves  114  is sealed by the devices  120  or by the devices  120  among other things. The device  120  will be looked at in more detail with reference to the figures described below. 
     According to an exemplary embodiment, the two devices  120  are realized in an identical manner and, with the door  112  in a closed state, are arranged complementarily with respect to one another. According to another exemplary embodiment, the devices  120  can be formed and/or designed differently. In this connection, the devices  120  can deviate from one another with regard to an extrusion profile and/or a switching element of the same. For example, just one of the devices  120  can include a switching element. 
       FIG. 2  shows a flow diagram of a method  200  for producing a device for protection against entrapment for a door for a vehicle according to an exemplary embodiment. Each of the devices from  FIG. 1  and/or a device from one of the figures described below can be produced by carrying out the method  200 . The method  200  includes a step  210  of extrusion, a step  220  of integration and a step  230  of cutting to length. 
     In the step  210  of extrusion, the elastomer material is extruded to form an extrusion profile. The extrusion profile includes a door leaf wall, a sealing wall and an actuating plunger. With the device in a state mounted on the door, the door leaf wall faces an impact edge of a door leaf of the door. The sealing wall is arranged opposite with reference to the door leaf wall. The door leaf wall and the sealing wall include extension planes which are parallel or approximately parallel to one another. The actuating plunger is designed to transmit a compression force into the extrusion profile. The actuating plunger is arranged on the sealing wall and extends away from the door leaf wall along a transverse axis of the extrusion profile. 
     In the step  220  of integration, at least one switching element is integrated into the extrusion profile to detect a compression of the extrusion profile. In this case, the at least one switching element is arranged between the door leaf wall and the actuating plunger in the region of the actuating plunger. Finally, in the step  230  of cutting to length, the extrusion profile is cut to a desired length. In this case, the switching element is cut to length with the extrusion profile. 
     Even if it is not explicitly shown in the representation of  FIG. 2 , according to an embodiment, the step  210  of extrusion and the step  220  of integration are carried out jointly. In this case, the switching element is extruded with the elastomer material. As an option, in the step  220  of integration, the switching element and/or a further switching element are vapor deposited onto the elastomer material. 
       FIG. 3  shows a schematic representation of a device  120  for protection against entrapment according to an exemplary embodiment. The device  120  is realized to enable protection against entrapment for a door for a vehicle. In this case, the device  120  can be deployed or used in connection with the door, the door system or the vehicle, as shown in  FIG. 1 . In other words, each device shown in  FIG. 1  can correspond to or resemble the device  120  shown in  FIG. 3 . 
     The device  120  includes an extrusion profile  330  and at least one switching element  350 . The extrusion profile  330  is extruded in one piece from the elastomer material. In this case, the at least one switching element  350  is integrated into the extrusion profile  330 , which is extruded from the elastomer material, or is extruded and cut to length jointly with the same. An x axis, a y axis and a z axis of a three-dimensional system of coordinates are also provided in  FIG. 3  for orientation. An extrusion axis, along which the extrusion profile  330  is extruded or which represents a longitudinal extension axis of the device  120 , corresponds to the z axis in the representation in  FIG. 3 . 
     The extrusion profile  330  includes a door leaf wall  332 , a sealing wall  334 , a mounting web  336  and an actuating plunger  338 . The door leaf wall  332 , with the device  120  in a state mounted on the door of the vehicle, faces an impact edge of a door leaf of the door. The sealing wall  334  is arranged opposite with reference to the door leaf wall  332 . The door leaf wall  332  and the sealing wall  334  include extension planes which are parallel to one another. A space or cavity with at least two chambers is arranged between the door leaf wall  332  and the sealing wall  334 . The extension planes of the door leaf wall  332  and of the sealing wall  334  are spanned or defined by the y axis and the z axis. According to an exemplary embodiment, the extension planes of the door leaf wall  332  and of the sealing wall  334  are at least in part parallel or approximately parallel to one another. The extension planes of the door leaf wall  332  and of the sealing wall  334  can also be aligned in part or entirely in an oblique manner with respect to one another. 
     The mounting web  336  represents a portion of the extrusion profile  330  for increasing a rigidity of the extrusion profile  330 . The mounting web  336  extends normally with reference to the extension planes along a transverse axis of the extrusion profile  330 . The transverse axis corresponds to the x axis in  FIG. 3 . The door leaf wall  332  and the sealing wall  334  are connected together via the mounting web  336 . The cavity between the door leaf wall  332  and the sealing wall  334  is also divided by the mounting web  336  into two chambers. According to an exemplary embodiment, the mounting web  336  extends in an oblique manner with respect to the transverse axis. 
     The actuating plunger  338  is arranged on the sealing wall  334  and extends along the transverse axis or x axis in the direction away from the door leaf wall  332 . In addition, the actuating plunger  338  is arranged offset relative to the mounting web  336  along the extension plane of the sealing wall  334 . In other words, the mounting web  336  and the actuating plunger  338  are connected to adjacent part portions on different sides of the sealing wall  334 . The actuating plunger  338  is realized to transmit a compression force into the extrusion profile  320  and onto the switching element  350 . 
     According to the exemplary embodiment shown in  FIG. 3 , the device  120  includes, as an example, just one switching element  350 . The switching element  350  is arranged between the door leaf wall  332  and the actuating plunger  338  in the region of the actuating plunger  338 . A part portion of the sealing wall  334  is arranged between the actuating plunger  338  and the switching element  350 . The switching element  350  is realized to detect a compression of the extrusion profile  330  transmitted by the actuating plunger  338  into the extrusion profile  330 . 
     The switching element  350 , according to the exemplary embodiment shown and described in  FIG. 3 , includes a first electrically conductive portion  352  with a first electrical conductor  354  and a second electrically conductive portion  356  with a second electrical conductor  358 . The first portion  352  and the second portion  356  are separated from one another by a space which is compressible by the compression force. The first electrical conductor  354  is embedded in the first portion  352 . The second electrical conductor  358  is embedded in the second portion  356 . The first portion  352  and the second portion  356  are formed or extruded from an electrically conductive material. 
     The first portion  352  is arranged on the sealing wall  334 . More precisely, the first portion  352  is arranged in the region of the actuating plunger  338  on a side of the sealing wall  334  facing the door leaf wall  332 . The second portion  356  is arranged between the first portion  352  and the door leaf wall  332  with reference to the transverse axis or x axis. More precisely, the second portion  356  according to the exemplary embodiment shown here is realized or formed on a partition wall  342  or as a part portion of a partition wall  342  between the sealing wall  334  and the door leaf wall  332 . The partition wall  342  extends between the mounting web  336  and the sealing wall  334 . The partition wall  342  is also connected to the mounting web  336  and to the sealing wall  334 . 
     The extrusion profile  330  according to the exemplary embodiment shown in  FIG. 3  also includes a sealing surface  344  and a sealing element  346 . The sealing surface  344  and the sealing element  346  are connected to the sealing wall  334  and extend on a side of the sealing wall  334  remote from the door leaf wall  332  in the direction away from the door leaf wall  332 . In this case, the actuating plunger  338  is arranged between the sealing element  346  and the sealing surface  344  with reference to the extension plane of the sealing wall  334 . The sealing surface  344  includes an extension plane which is parallel to the extension plane of the sealing wall  334  and/or parallel to the extension plane of the door leaf wall  332 . The sealing element  346  is formed as a sealing lip. Consequently, the sealing surface  344  and the sealing element  346  are realized as projection portions of the extrusion profile  330  relative to the sealing wall  334 . According to an exemplary embodiment, the sealing wall  334  includes a curvature toward the sealing surface  344 . The sealing element  346  is formed, as an example, in an S-shaped manner. 
     According to the exemplary embodiment shown in  FIG. 3 , an end of the actuating plunger  338  remote from the sealing wall  334  is arranged at a first distance from the sealing wall  334 , an end of the sealing element  346  remote from the sealing wall  334  is arranged at a second distance to the sealing wall  334  and an end of the sealing surface  344  remote from the sealing wall  334  is arranged at a third distance to the sealing wall  334 . The first distance is smaller than the second distance and greater than the third distance. Consequently, the sealing element  346  projects furthest away from the sealing wall  334 . The sealing surface  344  projects the least distance away from the sealing wall  334 . An advantageous pressing tolerance of the extrusion profile  330  or of the device  120  along the transverse axis or the x axis can thus be achieved. 
     The extrusion profile  330 , according to the exemplary embodiment shown and described in  FIG. 3 , additionally includes an attachment portion  348 . The device  120  can be attached to the door of the vehicle using the attachment portion  348 . The attachment portion  348  is connected to the door leaf wall  332  in the region of the mounting web  336 . In this case, the attachment portion  348  extends on a side of the door leaf wall  332  remote from the sealing wall  334  along the transverse axis or the x axis in the direction away from the sealing wall  334 . Consequently, a part portion of the door leaf wall  332  is arranged between the mounting web  336  and the attachment portion  348 . The attachment portion  348  includes a mushroom-shaped cross section. 
     In addition, the device  120 , according to the exemplary embodiment shown in  FIG. 3 , includes a device for protection against cuts  360 . The device for protection against cuts  360  is realized, for example, as a metal wire, metal bar or the like. According to the exemplary embodiment shown here, the device for protection against cuts  360  is arranged integrated or embedded in the actuating plunger  338 . 
     In other words,  FIG. 3  shows a cross section of the device  120  and consequently of the extrusion profile  330  with the switching element  350  for the integrated detection of entrapped objects. After an extrusion, the created endless material is to be cut to the desired length as required and electrical, where applicable optical, connections for the switching element  350  are to be attached. The elastomer, e.g. EPDM or silicone, should meet defined fire protection requirements (e.g. EN45545). A co-extruded, electrically conductive material of the portions  352  and  356  of the switching element  350  can include, among other things, the following electrically conductive materials: elastomers, e.g. EPDM or silicone, or elastomers, e.g. EPDM or silicone, in combination with metal wires. As an alternative to this, an electrical conductor or a reflector, for example, can also be applied as a switching element  350  in a further production process step, for example as a result of vapor depositing. As a further alternative to this, a fiber optic cable or a reflector, a switching strip or a band switch can be co-extruded or introduced subsequently into the extrusion profile  330  instead of electrically conducting strips. The mounting web  336  is formed to steer a force effect, when the device  120  is mounted on a door, in such a manner that the force flow is diverted or is directed past the switching element  338 . Increased rigidity provided by the mounting web  336  promotes both the mounting on a door leaf and a functioning of safety devices, for example a detection of obstacles or the like. 
     According to an exemplary embodiment, the extrusion profile  330  includes a first outside wall  370  and a second outside wall  372 . The first outside wall  370  connects first ends of the door leaf wall  332  and the sealing wall  334 . The second outside wall  372  connects second ends of the door leaf wall  332  and the sealing wall  334 . The mounting web  336  is arranged longitudinally to the first outside wall  370  and to the second outside wall  372 . The mounting web  336  is arranged in a central third of a distance between the first outside wall  370  and the second outside wall  372 . For example, the mounting web  336  is arranged centrally between the first outside wall  370  and the second outside wall  372 . 
       FIG. 4  shows a schematic representation of a device  120  for protection against entrapment according to an exemplary embodiment. The device  120  corresponds to or resembles the device from  FIG. 1  or  FIG. 3 . In this connection, a perspective view of the device  120  is shown. In the representation in  FIG. 4 , of the device  120  the extrusion profile  330 , of which the attachment portion  348  is explicitly designated, and the switching element  350  are shown. In addition, a terminating resistor  455  and a plug  470  are shown. 
     The terminating resistor  455  is attached to the switching element  350 . The terminating resistor  455  can enable function monitoring of the switching element  350  or of the device  120 . A line breakage in the case of the switching element  350  or of an integrated electrical switching strip can be detected using the closed current principle. The terminating resistor  455  can be used for this purpose. The device  120  can then be encapsulated, in order to avoid, for example, ingress of moisture, on at least one end of the device using the plug  470 . The plug  470  can be, for example, bonded on or injected on. The plug  470  can also be an injection molded part. In this connection, reference is also made to  FIG. 20 . 
       FIG. 5  shows a schematic representation of devices  120  according to an exemplary embodiment. Two devices  120  are shown, each device corresponding to or resembling one of the devices shown and described previously. The devices  120  are arranged, as in the door system from  FIG. 1 , adjoining one another when the door is in a closed state. In this connection, a complementary arrangement of the devices  120  relative to one another can be seen. In this case, the sealing element of a first device  120  and the sealing surface of a second device  120  are in contact with one another, the sealing surface of the first device  120  and the sealing element of the second device  120  being in contact with one another. 
     In addition,  FIG. 5  also shows dimensions and tolerances for a position of the devices  120  with reference to one another with a double-leaf entry door in a closed, locked state. A nominal rubber width A extends from the door leaf wall of the first device  120  to the door leaf wall of the second device  120 . The nominal rubber width A is, for example, between 30 and 100 millimeters. A width B of a finger guard rubber or a width of a door leaf B represents a dimension of the devices  120  along the y axis in the extension planes of the door leaf wall or of the sealing wall. The width of B the finger guard rubber is, for example, between 20 and 50 millimeters. A pressing tolerance Δx in the x direction represents an admissible position of the two devices  120  with respect to one another. In this case, the pressing tolerance Δx is, for example, less than 10 millimeters. The switching element of each device  120  is arranged offset from the mounting web by an offset distance n transversely to the x axis. The offset distance n is, for example, a maximum of 10 millimeters. The offset distance n can also represent a distance of the switching element from a neutral phase so that the switching element or the device  120  can be used for exemplary door leaf forms with a maximum radius of curvature on a door leaf outside surface of up to R200 mm about the x axis, without functioning restrictions occurring or unwanted detection or triggering of the switching element being produced by a door leaf form. 
       FIG. 6  shows a schematic representation of devices  120  according to an exemplary embodiment. In this connection, the representation in  FIG. 6  corresponds to the representation from  FIG. 5  with the exception that the devices  120  are arranged displaced relative to one another along the y axis from  FIG. 5  by a lateral offset Δy. A dimension of the sealing surface of each device  120  along the y axis is greater than the admissible lateral offset Δy so that sufficient sealing surface is always present. The admissible lateral offset Δy is, for example, less than 10 millimeters, i.e. |Δy|&lt;10 mm. In particular, a positive lateral offset Δy is shown in  FIG. 6 . 
       FIG. 7  shows a schematic representation of devices  120  according to an exemplary embodiment. In this case, the representation in  FIG. 7  corresponds to the representation from  FIG. 6  with the exception that a negative lateral offset Δy of the devices  120  relative to one another is shown. 
       FIG. 8  shows a schematic representation of devices  120  according to an exemplary embodiment. The representation in  FIG. 8  corresponds, in this connection, to the representation from  FIG. 5  with the exception that the devices  120  are arranged further apart from one another along the x axis or transverse axis. In this connection, sealing elements  346  of the devices  120  are explicitly designated. In addition, an overlap U is marked. The overlap U represents a loss of a clear inner width and is minimized. For example, the overlap U is less than 20 millimeters. The nominal rubber width A and the overlap U are also shown correspondingly in the representation of  FIG. 8  in added form, i.e. A+U. 
     A maximum closing force or door closing force corresponds to a compressing of each sealing element  346 . The maximum closing force can be, for example, less than 0.25 N/mm or Newtons per millimeter for an admissible application case maintaining predetermined tolerances. 
       FIG. 9  shows a schematic representation of devices  120  according to an exemplary embodiment. The representation in  FIG. 9  corresponds to the representations from one of  FIGS. 5 to 8  with the exception that on the left-hand side in  FIG. 9  a first device  120  is shown and on the right-hand side in  FIG. 9  a second device  120 , at three possible positions in order to illustrate door pivoting-in movements. In the case of synchronized double-leaf doors, the doors and consequently the devices  120  meet one another at an angle of approach α of zero degrees or α=0°. In the case of single-leaf doors or asynchronous double-leaf doors, the angle of approach α is between 0°&lt;α≤85° or 0°&gt;α≥−85°. 
     With regard to possible loads on the devices  120 , it must be noted that a pressure tightness or water tightness for resistance in relation to false triggering of the switching elements of the devices  120 , in particular in the case of aerodynamic pressure loads in the region of the rail vehicle, is between 0.5 and 10 kPa or kilopascals. 
       FIG. 10  shows a schematic representation of a part portion of a device  120  according to an exemplary embodiment. The device  120 , in this connection, corresponds to the device from  FIG. 3 . The part portion of the device  120  shown in the representation of  FIG. 10  includes substantially the sealing wall  334 , the actuating plunger  338 , the sealing element  346  and the switching element  350 . In this connection, the sealing element  346  is formed as a sealing lip. 
       FIG. 11  shows a schematic representation of a part portion of a device  120  according to an exemplary embodiment. In this case, the representation in  FIG. 11  corresponds to the representation from  FIG. 10  with the exception that the sealing element  346  is formed as a sealing balloon. 
       FIG. 12  shows a schematic representation of a part portion of a device  120  according to an exemplary embodiment. In this case, the representation in  FIG. 12  corresponds to the representation from  FIG. 10  or  FIG. 11  with the exception that the sealing element  346  is formed as a double balloon. 
       FIG. 13  shows a schematic representation of a part portion of a device  120  according to an exemplary embodiment. In this case, the representation in  FIG. 13  corresponds to the representation from  FIG. 10 ,  FIG. 11  or  FIG. 12  with the exception that the sealing element  346  is formed as a sealing balloon with a double lip. 
       FIG. 14  shows a schematic representation of devices  120  according to an exemplary embodiment. In this connection, the devices  120  correspond to the devices from one of  FIGS. 5 to 9 , a test piece  1410 , more precisely a rigid test piece  1410 , being arranged between the devices  120  in the representation in  FIG. 14 . The test piece  1410 , in this connection, is entrapped between the devices  120  and is in contact with the actuating plungers  338  of the devices  120 . In this connection, a force F or compression force F acts on each actuating plunger  338  as a result of the presence of the test piece  1410  between the devices  120 . 
     In other words, protection against entrapment is consequently illustrated in  FIG. 14 . In the case of rigid test pieces  1401 , the actuating plunger  338  is pressed at the force F. Rigid test pieces  1401 , for example with dimensions of 10×50 mm, 30×60 mm or the like, are already detected by using the devices  120  before a door-closed-position of a door system is reached. 
       FIG. 15  shows a schematic representation of devices  120  according to an exemplary embodiment. The representation in  FIG. 15  corresponds, in this connection, to the representation from  FIG. 14  with the exception that a test material  1501  or an elastic test piece  1501  is entrapped between the devices  120 . When the test material  1501  is pulled upward, a force F or compression force F acts on each actuating plunger  338 . 
     In other words, entrapment detection is consequently illustrated in  FIG. 15 . Elastic test pieces  1501 , such as, for example, a material cloth, are detected in a door-closed-position of a door system by pulling upward at a force F of, for example, up to 150 Newtons and at a pull angle β of 0°&lt;β&lt;180°. When pulling elastic test pieces  1501  upward, the actuating plunger  338  is rotated under the effect of the force F. In other words, the force F brings about a movement component of the actuating plunger  338  along the y axis when the elastic test pieces  1501  are pulled upward. 
       FIG. 16  shows a schematic representation of a part portion of a device  120  according to an exemplary embodiment. The device  120 , in this connection, corresponds to the device from  FIG. 3 . The part portion of the device  120  shown in the representation in  FIG. 16  includes substantially the sealing wall  334 , the mounting web  336 , the actuating plunger  338  and the switching element  350  with the first electrically conductive portion  352  and the second electrically conductive portion  356 . 
     In addition, a first dimension a and a second dimension b are marked in  FIG. 16 . The first dimension a represents a dimension of the first portion  352  of the switching element  350  along the transverse axis of the device  120 . As an alternative to this, the first dimension a represents a dimension of the first portion  352  of the switching element  350  and of the actuating plunger  338  along the transverse axis on a side of the sealing wall  334  facing the door leaf wall. The second dimension b represents a dimension of the actuating plunger  338  along the transverse axis of the device  120  on a side of the sealing wall  334  remote from the door leaf wall. As an alternative to this, the second dimension b represents a dimension of the actuating plunger  338 . A ratio between the two dimensions a and b with respect to one another includes a predefined value. 
     In other words, a transmission ratio of the actuating plunger  338  is illustrated in  FIG. 16 . In this case, the actuating plunger  338  and surrounding portions of the device  120  and also the switching element  350  can be formed in such a manner that a path or deformation of the actuating plunger  338  and of the switching element  350  is provided with a suitable transmission ratio so that a sensitivity of the switching element  350  can consequently be controlled or a response behavior of the entrapment detection can be adjusted. By modifying a transmission ratio or the ratio between the dimensions a/b, it is possible to adjust a sensitivity of the switching element  350  depending on the requirement with a constant gap between the electrically conductive portions  352  and  356 . 
       FIG. 17  shows a schematic representation of a part portion of a device  120  according to an exemplary embodiment. The representation in  FIG. 17  corresponds, in this connection, to the representation from  FIG. 16  with the exception that the ratio between the dimensions a and b is different and the second electrically conductive part portion  356  extends into the mounting web  336 . 
       FIG. 18  shows a schematic representation of a device  120  according to an exemplary embodiment. The device  120 , in this connection, corresponds to the device from  FIG. 3 . Of the device  120 , the actuating plunger  338  and the device for protection against cuts  360  are explicitly provided with reference symbols in the representation of  FIG. 18 . The device for protection against cuts  360  is arranged integrated in the actuating plunger  338 . In this case, the device for protection against cuts  360  is realized as a metal wire. The metal wire can be formed, for example, from stainless steel and can be extrudable and able to be cut to length with the extrusion profile. 
       FIG. 19  shows a schematic representation of a device  120  according to an exemplary embodiment. The device  120  in  FIG. 19  corresponds to the device from  FIG. 3  or  FIG. 18  with the exception that the device for protection against cuts  360  is integrated in a part portion of the extrusion profile of the device  120  adjacent to the sealing wall  334 . In this connection, the protection against cuts  360  is realized as a metal band, a metal insert or the like. More precisely, the device for protection against cuts  360 , in this connection, is integrated in a side wall between the sealing wall  334  and the door leaf wall  332  and adjacent to the sealing element  346 . 
     With reference, in particular, to  FIGS. 18 and 19 , it must be noted that the device for protection against cuts  360  can be used as protection against vandalism or for security against vandalism, for example, for the case where an attempt is made using a knife to damage or sever the device  120  and in particular the switching element which means that a function of the entrapment detection is able to be maintained using the device for protection against cuts  360 . 
       FIG. 20  shows a schematic representation of molded parts  2000  according to an exemplary embodiment. The molded parts  2000  can be used for the door system from  FIG. 1  or for a similar door system. In this case, each molded part  2000  functions as a transition between a sealing profile  2010  or a door seal  2010  of a door leaf of a door and a device  120  or a finger protection profile  120 . The device  120 , in this connection, corresponds to or resembles the device from one of the figures described above. 
       FIG. 20  shows two molded parts  2000  for two door leaves of a door of a vehicle. In addition, two sealing profiles  2010  and two devices  120  are indicated. The molded parts  2000  can either be bonded to or injected onto the profile. The molded parts  2000  can be used at the top and at the bottom of a door leaf. 
       FIG. 21  shows a schematic representation of molded parts  2000  according to an exemplary embodiment. The molded parts  2000  correspond to the molded parts from  FIG. 20 .  FIG. 21  also shows stop surfaces  2102  of the molded parts  2000 . The molded parts  2000  can be prevented from being pressed further than admissible in the x direction during an operation to close a door using the stop surfaces  2102 . The stop surfaces  2102  can be arranged at the top and/or at the bottom of the molded parts  2000  when the molded parts are mounted in the door system. 
       FIG. 22  shows a schematic representation of molded parts  2000  according to an exemplary embodiment. The molded parts  2000  correspond to the molded parts from  FIG. 20  or  FIG. 21 .  FIG. 22  also shows wedge surfaces  2204  or run-on wedges  2204  of the molded parts  2000 . In this connection, the molded parts  2000  are offset relative to one another along the y axis. The wedge surfaces  2204  or run-on wedges  2204  are formed in order to reduce a y offset Δy or an offset along the y axis. 
     In other words, to reduce a lateral offset or the y offset Δy, a run-on wedge  2204  is integrated in each molded part  2000  in order to produce a positive locking connection between the molded parts  2000 . To reduce the rubber abrasion, a metal insert can be arranged on each wedge surface  2204 . The run-on wedges  2204  can be arranged at the top and/or at the bottom of the molded parts  2000 . 
       FIG. 23  shows a schematic representation of molded parts  2000  according to an exemplary embodiment. The representation in  FIG. 23 , in this connection, corresponds to the representation from  FIG. 22  with the exception that the molded parts  2000  are offset relative to one another in the opposite direction along the y axis. 
     With reference to  FIGS. 20 to 23 , it must also be noted that the molded parts  2000  can include a drainage so that in the event of possible water ingress into the molded parts  2000 , penetrated water is able to be discharged to the outside again. 
       FIG. 24  shows a schematic representation of a device  120  according to an exemplary embodiment. In this case, the device  120  corresponds to the device from one of  FIGS. 3, 5 to 10 and 14 to 19  with the exception that the device  120  in  FIG. 24  includes an extrusion profile  330  which is formed as a solid profile. Consequently, a mounting web and a partition wall are omitted. 
     The extrusion profile  330  is filled out with elastomer material between the door leaf wall  332  and the sealing wall  334  and between the first side wall  370  and the second side wall  372 , with the exception of the space between the first electrically conductive portion  352  and the second electrically conductive portion  356  of the switching element. In this connection too, a transmission of force can be directed past the switching element during mounting. 
       FIG. 25  shows a schematic representation of a device  120  according to an exemplary embodiment. In this case, the device  120  corresponds to the device from one of  FIGS. 3, 5 to 10 and 14 to 19  with the exception that the device  120  in  FIG. 25  includes a switching element  350  where the space, which is compressible by the compression force, extends along the transverse axis x between the first portion  352  and the second portion  356 . A partition wall is omitted in this connection. 
     In this case, the first portion  352  of the switching element  350  is arranged on the actuating plunger  338 . The second portion  356  is arranged on the mounting web  336 . In this connection, the first portion  352  is arranged between the second portion  356  and the actuating plunger  338  with reference to an axis y which runs transversely relative to the transverse axis x. The first portion  352  and the second portion  356  of the switching element  350  are also arranged between the mounting web  336  and the actuating plunger  338  with reference to the axis y which runs transversely relative to the transverse axis x. 
     The switching element  350  is consequently able to be triggered in the case of a movement of the actuating plunger  338  along the axis y which runs transversely relative to the transverse axis x responding to a compression force. 
       FIG. 26  shows a schematic representation of a device  120  according to an exemplary embodiment. In this case, the device  120  corresponds to the device from one of  FIGS. 3, 5 to 10 and 14 to 19  with the exception that, in the case of the device  120  in  FIG. 26 , the second electrically conductive portion  356  of the switching element is formed or arranged in a different part portion of the partition wall  342 . 
     More precisely, the second portion  356  is arranged in a smaller part portion of the partition wall  342  than in the case of the devices from the figures named above. According to a different exemplary embodiment, the portions  352  and  356  of the switching element can be formed depending on the requirement. According to an exemplary embodiment, the switching element is designed to be switched or triggered only when a compression force acts on the actuating plunger  338  along the transverse axis x. 
       FIG. 27  shows a schematic representation of a device  120  according to an exemplary embodiment. In this case, the device  120  corresponds to the device from one of  FIGS. 3, 5 to 10 and 14 to 19 . In addition,  FIG. 27  illustrates that someone is about to press on the device  120  with a finger, for example within an act of vandalism, along an axis y which runs transversely relative to the transverse axis x. The finger, in this connection, is arranged adjacent to the first side wall  370  and the sealing element  346 . In this connection, the actuating plunger  338  would simply rotate. Detection of such a case of vandalism by the switching element  350  is not provided in this connection. The device  120 , however, provides vandalism protection against the pressing of an object onto the device  120  along the axis y which runs transversely relative to the transverse axis x. 
       FIG. 28  shows a schematic representation of a device  120  according to an exemplary embodiment. In this case, the device  120  corresponds to the device from  FIG. 25 , two directional arrows being added in the representation for a force F 1  acting on the actuating plunger  338  in a first direction along the axis y which runs transversely relative to the transverse axis x and for a force F 2  acting on the actuating plunger  338  in a second direction along the axis y which runs transversely relative to the transverse axis x. 
     According to the exemplary embodiment shown here, the switching element  350  is designed in order to be switched or triggered when the force F 1  acts in the first direction along the axis y which runs transversely to the transverse axis x on the actuating plunger  338 . In this case, the first electrically conductive portion  352  and the second electrically conductive portion  356  of the switching element  350  come into contact with one another. More precisely, the switching element  350  is designed, in this connection, only to switch when the force F 1  acts on the actuating plunger  338  in the first direction along the axis y which runs transversely relative to the transverse axis x. The force F 2 , in the second direction along the axis y which runs transversely relative to the transverse axis x, causes the first portion  352  and the second portion  356  of the switching element  350  to move away from one another. 
       FIG. 29  shows a schematic representation of a device  120  according to an exemplary embodiment. In this case, the device  120  resembles the device from one of the figures described above with the exception that the switching element  350 , in addition to the first electrically conductive portion  352  and the second electrically conductive portion  356 , also includes a further electrically conductive portion  2956  with a further electrical conductor  2958 . In addition, two directional arrows are shown for a force F 1  acting on the actuating plunger  338  in a first direction along the axis y which runs transversely relative to the transverse axis x and a force F 2  acting on the actuating plunger  338  in a second direction along the axis y which runs transversely relative to the transverse axis x. 
     The further portion  2956  is arranged adjacent to the second portion  356 . In this case, the further portion  2956  is separated or isolated electrically from the second portion  356 . More precisely, the further portion  2956  and the second portion  356  are arranged spaced from one another along the axis y which runs transversely relative to the transverse axis x. The first portion  352  and the second portion  356  are separated from one another by a space which is compressible in the first direction by the force F 1 . The first portion  352  and the further portion  2956  are separated from one another by a space which is compressible in the second direction by the force F 2 . 
     When the force F 1  acts on the actuating plunger  338  in the first direction along the axis y which runs transversely relative to the transverse axis x, the first portion  352  and the second portion  356  of the switching element  350  come into contact with one another. When the force F 2  acts on the actuating plunger  338  in the second direction along the axis y which runs transversely relative to the transverse axis x, the first portion  352  and the further portion  2956  of the switching element  350  come into contact with one another. As a result, with corresponding cabling and evaluation, information can be obtained regarding whether, in the case of an object entrapped in a door gap, a force acts from outside or inside with reference to the vehicle or a force F 1  acts in the first direction or a force F 2  acts in the second direction when it is pulled out. 
     LIST OF REFERENCES 
     
         
           100  Vehicle 
           110  Door system 
           112  Door 
           114  Door leaf 
           120  Device for protection against entrapment 
           200  Method for production 
           210  Step of extrusion 
           220  Step of integration 
           230  Step of cutting to length 
           330  Extrusion profile 
           332  Door leaf wall 
           334  Sealing wall 
           336  Mounting web 
           338  Actuating plunger 
           342  Partition wall 
           344  Sealing surface 
           346  Sealing element 
           348  Attachment portion 
           350  Switching element 
           352  First electrically conductive portion 
           354  First electrical conductor 
           356  Second electrically conductive portion 
           358  Second electrical conductor 
           360  Device for protection against cuts 
           370  First outside wall 
           372  Second outside wall 
           455  Terminating resistor 
           470  Plug 
         A Nominal rubber width 
         B Width of finger protection rubber or door leaf width 
         n Offset distance 
         Δx Pressing tolerance 
         Δy Lateral offset 
         U Overlap 
         α Angle of approach 
         F Compression force or force acting on actuating plunger 
           1401  Test piece 
         β Pull angle 
           1501  Test material 
         a First dimension 
         b Second dimension 
           2000  Molded part 
           2010  Sealing profile 
           2102  Stop surface 
           2204  Run-on wedge or wedge surface 
         F 1  Force in first direction 
         F 2  Force in second direction 
           2956  Further electrically conductive portion 
           2958  Further electrical conductor