DK2738340T3 - Closure edge for an inner swing door, swing door and vehicle - Google Patents

Description

The present invention relates to a closing edge for an internal swing door of a means of transporting people in accordance with the preamble of Claim 1, an internal swing door for a means of transporting people in accordance with the preamble of Claim 11, and a means of transporting people in accordance with the preamble of Claim 13.

Passenger transport means such as coaches or city buses, wagons of trams, underground or overground trains, are often fitted with internal swing doors to allow boarding and alighting of passengers, wherein two internally swinging doors are typically arranged in an entry area such that they can pivot relative to each other, in such a way that they can be swung towards each other from an open to a closed position and away from each other in the event of a relocation from the closed position into the open position. Each of the internal swinging doors in the closed position is oriented substantially parallel to a longitudinal axis of the passenger transport means, while in its open position it is oriented substantially perpendicular to the longitudinal axis of the passenger transport means. During the closing operation, for example when the passenger transport means is about to leave a stop, the two internal swing doors of an entry area therefore pivot towards each other. Each of the internal swing doors has a closing edge, which generally speaking is designed in the form of a rubber seal. On each closing edge a sealing lip is provided, wherein the sealing lips of two internal swing doors of an entry area rest against each other when both internal swing doors are arranged in the closed position. This measure ensures a tightly sealed closure of the internal swing doors. Each closing edge also has at least one air chamber, which when viewed in cross section is enclosed by a wall. At least one pressure sensor is provided, which is functionally connected to the at least one air chamber in such a way that a pressure change in the air chamber can be detected by the pressure sensor. If the sealing lips impinge against each other during closure of the internal swing doors, this creates pressure waves in the air chambers, which can be detected by the pressure sensors so that it can be determined that the internal swing doors are in their closed position. If a passenger is still present in the entry area when the internal swing door is closed, it is possible that the closing edge of the internal swing door knocks into the passenger. In this case also, a pressure wave which can be detected by the pressure sensor is generated in the air chamber. In that case the door may open again. In general however, a new closing process is also triggered. This is unpleasant and even dangerous for the passenger, because he or she may be carried along by the door unexpectedly. Known internal swing doors have no inherent mechanism when in the open position for detecting whether there is a passenger currently in the entry area. EP 1 811 118 A2 discloses a finger guard strip on an internal swing door, wherein the finger guard strip has a rubberized elastic profile strip with a sealing arranged thereon and wherein a hollow chamber which interacts with a pressure sensing device is provided in the profile strip. EP 2 270 300 A1 discloses a finger guard device using a profile strip on a vehicle door, wherein the profile strip has connection channels for the transmission of signals to a pressure wave circuit. EP 1 111 633 B1 discloses a finger protection profile in which at least one hollow chamber is arranged in the head area and is connected to a pressure wave switch. The profile has a second hollow chamber which is connected to the pressure wave switch of the first hollow chamber. The hollow chambers have electrically actuated safety switching strips. The chambers are connected by bridges, so that the deformation of the first chamber causes a deformation of the second chamber. DE197 01 681 C1 indicates that the sealing surface of the hollow chamber facing the door assumes a concave shape with minimal pressure and a convex shape with maximum pressure. With the door closed, a door seal is seated on the frame seal, which in the area of its bearing surface on the frame seal has a complementary contour to the outer contour of the sealing surface when the hollow chamber is expanded. The frame seal has least one seal part, which extends with the concave shape of the sealing surface across said surface to the bearing surface of the door seal. An extending seal part is arranged on the outside and on the inside of the frame seal. DE 199 48 852 C1 relates to an internal swing door or folding door, in particular of a vehicle such as a bus, having at least one door leaf which comprises a piv-oting-sliding mounting assigned to its main closing edge, wherein said mounting contains a mounting axle arranged on the door leaf with a guide element that engages in a longitudinal guide fixed to the vehicle and is displaceably mounted therein, and has a pivoting-rotary mounting assigned to its secondary closing edge, wherein a connection line for an additional device arranged on the door leaf is routed in an arc from the door leaf to the bodywork via the mounting axle and a radial bearing axle holder, so that the connecting line is wound around the mounting axle when the door opens.

The object of the invention is therefore to create a closing edge for an internal swing door, by means of which it is possible to detect passengers located in the entry area, wherein this option is intended to be integrated into the closing edge of the internal swing door, so that no external solution such as a light barrier is required. In addition, an external appearance of the internal swing door on which the closing edge is provided should not be negatively affected. Another object of the invention is to create an internal swing door and a means of transporting people, in both of which the cited advantages are realized.

This object is achieved by creating a closing edge having the features of Claim 1. A closing edge for an internal swing door of a means of transporting people therefore comprises a wall and at least one device for detecting a pressure exerted in particular by a passenger on the walls of the closing edge. Viewed in cross-section, the wall has a projection on one side which, in the open condition of an internal swing door mounted in the intended manner on a means of transporting people, on which the closing edge is mounted in the intended manner, faces an entry area of said means of transporting people.

The closing edge is characterized in that the wall - viewed in cross-section - has the projection on a side which in the open position of the internal swing door is facing an entry area of the means of transporting people. This positioning of the projection of the wall on the side of the closing edge facing the entry area means that at the same time it is arranged in the vicinity of a door handle which a passenger typically takes hold of when entering the means of transporting people. In doing so, a forearm of the embarking passenger then rests against the newly provided projection, causing the wall to deform inwards. This activates the pressure sensing device. In this way it can be readily determined by means of the closing edge that a passenger is entering the entry area of the means of transporting people. It is then preferably provided that the internal swing door does not close if a passenger has been detected in the entry area by means of the pressure sensor.

The closing edge is preferably designed as a rubber seal and particularly preferably as a rubber profile, which has a longitudinal extension that is oriented vertically on the internal swing door. The closing edge is preferably integrally designed as a rubber profile or rubber seal.

It is clear that the wall of a closing edge which does not have the projection in the area in which the forearm of a passenger is located when gripping the door handle, is spaced apart from the forearm so that no contact with this takes place. Accordingly, in a known closing edge it cannot be determined by means of the at least one pressure sensor whether a passenger is currently present in the entry area. This is only possible due to the projection, which projects into the entry area perpendicular to a longitudinal extension of the closing edge, and due to which the wall is for the first time positioned in an area in which contact is ensured with the forearm of a passenger who is holding the door handle. A closing edge is provided, which is characterized in that the projection is designed as a bulge or bead, wherein it preferably extends over an entire longitudinal extension of the closing edge. In particular, it therefore extends in the area of the internal swing door - in a vertical direction - from an upper end of the same to the lower end thereof. Alternatively, it is provided that the projection is only formed in an area along the longitudinal extension of the closing edge in which, due to the arrangement of the door handle, contact with the forearm of the passenger is expected.

In a different embodiment of the closing edge according to the invention, at least one edge section of the wall adjacent to the projection is arranged at an angle to the surface of the internal swing door, for which the closing edge is provided in accordance with the intended purpose. The protrusion can be formed by the shaping of the inner wall and, where appropriate, also of an adjacent front-facing wall section. The angle of the at least one wall section may be obtained by an inner section of the wall being designed such that it tapers from the projection in the direction of the fixing area of the closing edge, hence is inclined inwards.

The device used for pressure detection in the closing edge can be of the pneumatic type. Thus, the wall enclosing the closing edge can enclose at least one air chamber and be functionally connected to a pressure sensor, wherein a pressure change in the air chamber can be detected by means of the pressure sensor. If contact occurs between a passenger who is boarding or alighting and the projection of the closing edge, pressure will be exerted on this, and the volume of the air chamber is compressed. This creates a pressure pulse in the air chamber, which can be detected by the at least one pressure sensor.

It is preferable if the closing edge is characterized in that the pressure sensor comprises a pressure wave tube. This is preferably integrated in the wall of the closing edge and separated from the air chamber by means of a wall region. The pressure wave tube is also preferably integrated into the wall of the closing edge in such a way that the entire closing edge including the pressure wave tube is integrally designed as a rubber profile. The pressure wave tube preferably extends along the longitudinal extension of the closing edge. It is then possible for the at least one pressure sensor to be provided in an upper and/or lower region of the closing edge, preferably at an upper and/or lower end of the internal swing door. Alternatively, it is possible that at least one fluidic connection is provided to a further pressure wave tube at the upper and/or lower end of the closing edge, which ultimately enables a fluidic connection to a sensing means of the at least one pressure sensor. In this case, the sensing means can be spaced apart from the closing edge. In either case, the pressure wave tube preferably penetrates the entire closing edge along its longitudinal extent.

It is also preferred if a closing edge is characterized in that the wall has a second projection which protrudes into the air chamber. This is preferably provided in order to reduce the volume of the air chamber, which increases its sensitivity to pressure variations. The response of the at least one pressure sensor or the system consisting of the at least one air chamber, the pressure wave tube and the sensing means is thus made more dynamic, and/or the sensitivity increases, in particular to small variations in pressure. The second projection is preferably provided as a bulge in the wall of the air chamber, and the bulge protrudes into the air chamber in the area of this projection. If the sensitivity of the system is increased in such a way, there is no need for a particularly abrupt contact by the forearm in order to generate a pressure pulse in the air chamber sufficient for the detection of a passenger. If, on the other hand, the system is designed with less sensitivity, so that a forearm of a passenger being only tentatively placed on the projection may not lead to detection of the passenger, then a corresponding pressure pulse will not be generated in the air chamber until the internal swing door is deflected out of its open position lightly against the forearm. Due to the pressure pulse the door can then be immediately opened again, wherein the waiting time in which it remains in its open position is preferably not set too short to allow a passenger who is boarding more slowly, for example due to age or a physical disability, sufficient time to leave the entry area.

Using the second projection means that the volume of the air chamber is reduced.

It is also preferable if the closing edge is characterized in that at least two air chambers are provided. In this case, at least two pressure sensors are also preferably provided, wherein particularly preferably a pressure sensor is assigned to each air chamber. In this case, it is possible in particular to allow a redundancy in the detection of a passenger, which ensures the detection is particularly reliable.

Alternatively, it is possible to provide the second air chamber and the second pressure sensor so that they can be used to detect when a closed position of the internal swing door is reached. This allows the functions of both the passenger detection and the closure detection to be separated from each other. By means of a suitable evaluation of the pressure pulses detected by the pressure sensors it is then easily possible for a control unit to distinguish between the different events.

Instead of a pressure sensing device of the pneumatic type, as described above, an electrical switching strip can also be provided, which is activated by a pressure being exerted on the projection of the closing edge. This can also be combined with a pneumatic pressure sensing device, so that both an electrical switching strip and, for example, an air chamber with a pressure sensor are provided.

The object is also achieved by creating an internal swing door for a means of transporting people, which has the features of Claim 11. This is characterized by a closing edge which is designed according to any one of the previously described exemplary embodiments. This allows the internal swing door to be realised with the same advantages as have already been described in connection with the closing edge. A preferred internal swing door is characterized in that the projection protrudes over a surface of the internal swing door facing the entry area. If a passenger grasps the door handle, their forearm is typically positioned parallel to the surface of the internal swing door facing the entry area and is generally also resting on this. If the projection now protrudes over this surface, this ensures that the forearm resting on the surface deforms the wall in the area of the projection, so that the air chamber is compressed, causing a pressure pulse to be triggered that is detectable by the at least one sensor, or an electrical switching strip to be activated. In known closing edges and known interior swing doors, by contrast, a surface of the closing edge facing the entry area remains withdrawn behind the surface of the internal swing door facing the entry area, so that no contact with the closing edge is made by the forearm. Therefore, with known interior swing doors having known closing edges, passenger detection in the manner proposed here is not possible.

The object is also achieved by creating a means of transporting people which has the features of Claim 13. This is characterized by an internal swing door according to any one of the previously described exemplary embodiments. The internal swing door can be pivoted from a closed position into an open position, wherein in the closed position it is aligned substantially parallel to a longitudinal axis of the means of transporting people and in particular, aligned parallel and flush with a side wall of the means of transporting people, wherein in the open position it is aligned substantially perpendicular to the longitudinal axis of the means of transporting people, and preferably also oriented substantially perpendicular to the side wall of the means of transporting people. Accordingly, in order to open or close the entry area the internal swing door can be pivoted preferably by approximately 90°. A preferred exemplary embodiment of the passenger transport by is characterized by the fact that at least two of the previously described interior swing doors are provided in an entry area, wherein in the event of a movement from the open into the closed position these swing towards each other and in the event of a movement from the closed position to the open position they swing away from each other. In this arrangement, the two internal swing doors rest against each other with their sealing lips when both internal swing doors are arranged in the closed position. The reaching of the closed position can also be detected with the closing edges of the type described here, because a pressure pulse generated in the air chambers by the coming together of the sealing lips can also be detected using the at least one pressure sensor. It is clear that in the open position the two internal swing doors - viewed in the direction of entry - are arranged to the left and right of the entry area. It is advantageous then if both internal swing doors are designed in accordance with the exemplary embodiments described here, because then passengers present in both a left-hand and a right-hand area of the entry area can be detected.

Finally, a preferred means of transporting people is characterized in that it is designed as a bus, in particular as a coach or city bus, or as a rail vehicle. In the latter case the means of transporting people is particularly preferably designed as a wagon or a tram, or an underground or overground train. Overall, the safety of passengers in public transport is thus increased by means of the closing edge, the internal swing door and the corresponding means of transporting people.

The invention will now be described in more detail by reference to the drawing. The single figure shows a representation of an exemplary embodiment of a closing edge in cross section.

The figure shows a cross-sectional view of an exemplary embodiment of a closing edge 1. This is designed as a rubber profile and is produced integrally from a rubber or other elastomer material 3. A mounting area 5 is provided, with which the closing edge 1 can be mounted on an internal swing door. The mounting area 5 is preferably designed identically to a mounting area of known closing edges, so that the closing edge 1 described here can be readily used with existing interior swing doors and as a replacement for conventional closing edges, without any additional measures being needed. In particular, in this case, no changes are necessary to the internal swing door. A longitudinal direction of the closing edge 1 extends perpendicular to the image plane of the figure. At the same time, this is a direction which in the case of an internal swing door properly installed on a means of transporting people is arranged in the vertical direction, in other words it extends from a floor region of the means of transporting people to a roof of the same, thus from the bottom to the top, or vice versa.

On a side of the closing edge 1, which in the case of a correct installation faces an outer side of a means of transporting people, a sealing lip 7 is provided, which in the closed position of the internal swing door interacts with a further sealing lip of a further closing edge which is arranged on a second internal swing door provided in the entry area. In the closed position, the sealing lips 7 of the interior swing doors abut against each other, so that the entry area is sealed, in particular windproofed and waterproofed.

In the exemplary embodiment shown a wall 9, formed integrally from the rubber material 3, encloses a first air chamber 11, wherein immediately adjacent thereto area and separated from the air chamber 11 by a wall section 13 of the integral wall 9, a pressure wave tube 15 is provided, which is fluidically connected to a sensing means, not shown, of a pressure sensor.

On one side 17, which in the open position of the internal swing door faces the entry area of the means of transporting people, the wall 9 has a projection 19. This is provided in such a way that it protrudes over a surface of the internal swing door facing the entry area, so that a forearm of a passenger who takes hold of a door handle provided on the internal swing door on the side 17 comes into contact with the projection 19, wherein the latter deforms the wall 9 in the area of the projection 19 - in the Figure upwards. This causes the volume of the air chamber 11 to be compressed, so that a pressure pulse is produced which is relayed through the pressure wave tube 15 to the sensing means of the pressure sensor. The pressure pulse is detectable in this device, so that it is possible to detect whether a passenger is present in the entry area.

In the exemplary embodiment illustrated, the projection 19 is produced by the design of the inner side of the wall 9. From the mounting area 5 outwards, an inner section 10 of the wall 9 extends in the direction of the front face of the closing edge inclined away from the plane of the door, whereby the closure edge profile becomes wider. In the area of the projection 19 the inner section 10 merges with the inclined front face 12 of the wall 9. The front face 12 and the inner section 10 form an acute angle, which produces the projection 19.

In order to make the passenger detection system more sensitive and/or dynamic, a second projection 21 is provided in the integral wall 9, which projects into the air chamber 11 and reduces its volume. This reduces a buffer effect of the air chamber 11, so that even quite small pressure pulses are efficiently coupled into the pressure wave tube 15 and can therefore be detected by the pressure sensor.

Preferably both the first projection 19 and the second projection 21 extend along the entire longitudinal extent of the closing edge 1.

The exemplary embodiment shown has a second air chamber 23, in the region of which a pressure wave tube 25 is provided, also separated by a wall region 27 of the integral wall 9. The second pressure wave tube 25 is in fluidic connection with a sensing means of a second pressure sensor, so that pressure pulses in the second air chamber 23 can be detected by this.

It is possible for the second air chamber 23 to be provided in order to implement redundancy in the passenger detection system. However, in the exemplary embodiment shown the region of projection 19 is decoupled from the region of the second air chamber 23 by a third air chamber 29, so that pressure pulses triggered by passengers are essentially only generated in the air chamber 11. The second air chamber 23, on the other hand, is provided to detect pressure pulses by means of the second pressure wave tube 25 and the sensing means of the second pressure sensor, which are triggered when the internal swing doors are closed and the sealing lip 7 impinges against the sealing lip of the other internal swing door. Therefore, the functionalities of passenger detection, on the one hand, and of closure detection of the interior swing doors on the other hand, are decoupled from each other, wherein the sensing means of the first pressure sensor, which is fluidically connected to the first pressure wave tube 15, is used at least substantially, preferably completely for the passenger detection, while the sensing means of the second pressure sensor, which is fluidically connected to the second pressure wave tube 25, is used substantially, or preferably completely for detecting the closure of the internal swing door. This enables these two phenomena, which are distinct from each other but nevertheless both cause pressure pulses, to be separated from each other and metrologically distinguished. This allows false alarms or misinterpretations of situations that occur in the entry area to be avoided.

Above, a separate pressure detection in the two air chambers 11,23, using one pressure sensor in each case was described. The detection of the pressure pulses in the two air chambers can also be carried out with only one pressuresensor, for example by using a Y-connection element, see EP 1 111 633 B1.

Overall, it is evident that by means of the closing edge 1, the internal swing door and the means of transporting people it is possible, with only little technical effort and without major changes to the appearance of the entry area and the internal swing door, to implement an inherently safe and efficient passenger detection system in the closing edge 1. This will promote the safety of passengers, especially in the area of public passenger transport.

Claims (15)

A closure edge (1) on an inner swing door of a passenger vehicle, the closure edge comprising a wall (9) and at least one device for sensing a pressure applied to the closure wall (9), and the wall (9) - seen in cross section - is mounted in connection with an open condition and an internal swing door mounted by a passenger means, the swing door (1) being fixedly mounted and the side (17) facing the passenger means having a projection (19), characterized in that the projection (19) is formed as a bulge or a bead. Closure edge (1) according to claim 1, characterized in that the device for sensing the pressure applied to the wall (9) comprises at least one air chamber (11, 23, 29) which is seen in cross-section by means of the wall (9). ), and that there is at least one pressure sensor that is functionally connected to the at least one air chamber (11, 23) in such a way that a pressure change in the air chamber (11, 23) can be detected. Closure edge (1) according to claim 1 or 2, characterized in that the device for sensing the pressure exerted on the wall (9) comprises an electrical switching strip. Closure edge (1) according to any one of the preceding claims, characterized in that there is a sealing lip (7) for tightly closing the inner swing door on which the closing edge (1) is provided in accordance with the provisions. Closure edge (1) according to any one of the preceding claims, characterized in that the projection (19) extends over the entire length of the closing edge (1). Closure edge (1) according to any one of the preceding claims, characterized in that at least adjacent the projection (9) a portion (10) of the wall (9) forms an angle with the surface of the inner swing door, to which the closure edge is provisionally provided. Closure edge (1) according to any of the preceding claims, characterized in that the pressure sensor comprises a pressure wave hose (15, 25), which is preferably integrated into the wall (9) of the cutting edge (1) and by means of a pressure area (13, 27). ) is separated from the air chamber (11, 23) and the pressure wave tube (15, 25) preferably extends in the longitudinal direction of the closing edge (1). Closure edge (1) according to any of the preceding claims, characterized in that the wall (9) has a second projection (21) projecting into the air chamber (11), thereby reducing the volume of the air chamber (11). Closure edge (1) according to any one of the preceding claims, characterized by two air chambers and a pressure sensor connected to the air chambers by means of a Y-connection means. Closure edge (1) according to any one of the preceding claims, characterized by at least two air chambers (11, 23) and preferably at least two pressure sensors, and preferably each air chamber (11, 23) is assigned a pressure sensor. Internal swing door for passenger means, characterized by a closing edge (1) according to one of claims 1 to 9. Internal swing door according to claim 11, characterized in that the projection (19) protrudes from a surface of the inner swing door facing an entrance area. Passenger means, characterized by an inner swing door according to claim 11 or 12, wherein the inner swing door can be rotated from a closed position in which it is substantially parallel to a longitudinal axis of the passenger means - and in an open position where it is in the main case. perpendicular to the longitudinal axis of the passenger means. Passenger means according to claim 13, characterized in that there are at least two inner swing doors according to claims 11 and 12, which in the case of a move from the open to the closed position and in the case of a move from the closed position can turn the open position away and where the two inner swing doors are in contact with their sealing lips (7) when both inner swing doors are in the closed position. Passenger means according to claim 13 or 14, characterized in that the passenger means is designed as a bus, in particular as an omnibus or city bus or as a rail vehicle, especially as a trolley, a subway or an S-lane.