This application is related to and claims the benefit of German Patent Application No. 20 2021 104 171.4, filed on Aug. 4, 2021, the contents of which are herein incorporated by reference in their entirety.
The present disclosure relates to a door system, in particular a pivot sliding door system, for a public transport vehicle, comprising a door leaf, which can be moved from a closed position towards an opened position and vice versa while carrying out a door leaf movement, wherein the door leaf, when carrying out the door leaf movement, is moved in the vehicle transverse direction across a door leaf movement distance in the vehicle transverse direction. The door system further comprises a door seal, which is disposed underneath a lower edge of the door leaf closing off the door leaf towards the bottom, and extends along the lower edge.
The present disclosure may relate to both road vehicles and rail vehicles (within the nomenclature of the present disclosure, both are to be understood to be “vehicles”). Even a use in vehicles of other vehicle categories, e.g. in aircraft or watercraft, is conceivable. A road vehicle is to be understood to be, in particular, a wheeled vehicle, e.g. a public transport vehicle such as a bus. A rail vehicle is also to be understood to denote public transport vehicles, such as trains, streetcars, trams, underground trains, urban-suburban commuter railway trains (S-Bahn), commuter trains, long-distance trains, regional trains or the like. Rail vehicles travel on rails.
Door systems for public transport vehicles have door portals via which passengers may enter the vehicle and exit it (boarding). Door systems, which—depending on their design—may include one or two door leaves (single-leaf door system, double-leaf door system), are assigned to such door portals. Generally, such a door leaf is supported in such a way that it can be moved between a closed position (in which it blocks the door portal) and an opened position (in which it clears the door portal for boarding). In a situation of a vehicle stopping in the immediate vicinity of a platform (e.g. a train platform), the platform and the external vehicle shell are generally separated by a gap. When boarding, this gap (and frequently also a difference in height) has to be negotiated by the passengers. Depending on the position of the vehicle relative to the platform, there may thus be a height difference between the floor level of a floor in the vehicle interior and a ground surface of the platform. In such a case, the distance in the height level of the floor and the ground surface of the platform is insufficient for preventing a lower door seal from dragging over the platform. Hereinafter, this issue—which was recognized by the inventors—will be specifically described within the context of tram vehicles (but is also transferable to other vehicles).
In tram vehicles, such door seals are often used in the form of externally situated seals or reasons of cost. In this case, the vehicle body with the tread strip (door sill) serves as a sealing surface, and no separate sealing brackets are installed in the vehicle. In certain situations of the vehicle stopping at a platform, a lower door seal (a door seal disposed underneath the door leaf) of pivot sliding doors opening towards the outside, for example, may—due to an insufficient distance between the vehicle and the platform—contact the platform during opening and drag over it or be damaged.
In the case of a small distance between the vehicle and the platform, the door leaf is generally positioned at a sufficient height above the platform. In order to enable people with limited mobility, for example, to board the vehicle from the platform as easily as possible, the height of the step between the tread strip and the platform is supposed to be as small as possible. In certain stopping situations, the platform may even be situated above the tread strip. The tread strip in the vehicle is precisely defined with regard to its position (standard specifications) and thus also determines the position of the lower door seal because the door system seals against the tread strip.
During the opening process, the door leaf first carries out an outward pivoting movement, which may result in a collision of the lower door seal with the platform. This limits the opening process or may result in great wear on the seal.
Thus, the present disclosure is based on providing a door system in which damage/wear of a door seal sealing the door system at a lower edge of a door leaf when opening/closing the door leaf is prevented.
A door system with the features of claim 1 is proposed in order to achieve the object.
It must be noted that the features cited individually in the claims can be combined with each other in any technologically meaningful manner (even across the boundaries of categories) and represent other embodiments of the disclosure. The description, in particular in connection with the figures, additionally characterizes and specifies the disclosure.
It may also be noted that a conjunction “and/or” used hereinafter, which is situated between two features and links them to each other, should always be interpreted such that, in a first embodiment of the subject matter according to the disclosure, only the first feature may be provided, in a second embodiment of the subject matter according to the disclosure, only the second feature may be provided, and in a third embodiment of the subject matter according to the disclosure, both the first and the second feature may be provided.
First, the present disclosure relates to a door system, in particular a pivot sliding door system, for a public transport vehicle, comprising
A door system according to the disclosure is characterized by such an arrangement of the door leaf and the door seal that ensures that the door seal movement distance in the vehicle transverse direction is smaller than the door leaf movement distance in the vehicle transverse direction. For this purpose, the door seal may be actively movable and, for example, be movably supported on a sliding fit member. In order to prevent the above-mentioned contact between the door seal and the platform, it is provided that the door seal pivots outwards to a lesser extent than the door leaf (door seal movement distance in the vehicle transverse direction smaller than the door leaf movement distance in the vehicle transverse direction).
Further configurations of the door system proposed by the disclosure are described hereinafter. The following description includes those configuration features specified in the dependent claims but is not limited thereto. Express mention is made of the fact that the features described below with respect to the door system proposed by the disclosure may readily also be configuration features of the door system proposed by the disclosure.
According to a first configuration of a door system proposed by the disclosure, it may be provided that the door seal comprises a sealing lip. The sealing lip is preferably made from a sealing material, which at least partially has elastic properties. For example, the sealing lip may be made from a rubber material.
According to another configuration of a door system proposed by the disclosure, it may be provided that the door leaf is connected via a door leaf connecting means, and the door seal via a door seal connecting means, with a rotary device associated with the door system, particularly a rotary column. Compared with known door systems—which are in part sold by the applicant—an additional pivot arm, which is assigned to the door seal, is provided in the door system according to the disclosure in addition to the lower pivot arm (which is attached to the door leaf). This pivot arm may also (but does not have to) be connected to a rotary column of the door system. It may also be arranged on a separate rotary device or connected therewith.
According to another configuration of a door system proposed by the disclosure, it may be provided that the door leaf connecting means and the door seal connecting means are configured in the shape of pivot arms, wherein, in each case, one first pivot arm end of the respective connecting means is connected to the rotary device, in particular the rotary column, and wherein at least one guide means, in particular a guide roller, which is guided in a guiding profile respectively disposed on the door leaf and the door seal, is disposed in each case on a second pivot arm end of the respective connecting means opposite the first pivot arm end.
According to another configuration of a door system proposed by the disclosure, it may be provided that the door seal connecting means has a first lever arm, and that the door leaf connecting means has a second lever arm, wherein the first lever arm is smaller than the second lever arm. This may provide the basis for the difference between the door seal movement distance in the vehicle transverse direction and the door leaf movement distance in the vehicle transverse direction.
According to another configuration of a door system proposed by the disclosure, it may be provided that the door leaf is connected via a door leaf connecting means, and the door seal via a door seal connecting means, in each case with separate rotary devices, wherein separate drive units are assigned to the respective rotary devices.
According to another configuration of a door system proposed by the disclosure, a control unit may be provided, which is connected in a controlling manner with the rotary devices and is configured to recognize whether the door seal, during the opening of the door leaf, was moved across a predetermined door seal movement distance in the vehicle transverse direction, and is further configured, in the case of a movement of the door seal across the predetermined door seal movement distance in the vehicle transverse direction, to block further movement of the door seal during the opening of the door leaf. For this purpose, the control unit may be equipped with suitable measuring and evaluating means. The control unit may also be provided with a drive unit providing for the movement of the door seal, and the recognition may take place based on drive unit data.
In addition to the door system, the disclosure may also relate to a door seal for a door system according to the disclosure.
The disclosure is further explained with reference to the following Figures. They are to be understood as mere examples and are not intended to limit the disclosure to the exemplary embodiments shown.
In the Figures:
Door systems for public transport vehicles have door portals via which passengers may enter the vehicle and exit it (boarding). Door systems, which—depending on their design—may include one or two door leaves 1, are assigned to such door portals. Such a door leaf 1 is supported in such a way that it can be moved between a closed position (in which it blocks the door portal) and an opened position (in which it clears the door portal for boarding). The movement is realized by means of a suitable drive unit, which may be arranged above the door leaf 1, for example. The door leaf 1 may be suspended in a suitable supporting device.
The basic structure of the door system according to the disclosure is shown in
Preferably, but not necessarily, the door system is a pivot sliding door system for a public transport vehicle. The door system comprises a door leaf 1, which can be moved from a closed position (
In addition, the door system comprises a door seal 2, which is disposed underneath a lower edge 3 of the door leaf 1 closing off the door leaf towards the bottom, and extends along the lower edge 3, wherein the door seal 2 is arranged such that the door seal 2, when the door leaf movement is carried out, undergoes a door seal movement and is moved in the process in the vehicle transverse direction Q across a door seal movement distance in the vehicle transverse direction. The door seal movement is apparent from a comparison of
In the exemplary embodiment shown in
Number | Date | Country | Kind |
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20 2021 104 171.4 | Aug 2021 | DE | national |