CN102806832B - For Sensor monitoring and the device sealing swing plug door - Google Patents

Abstract

The invention relates to a device for anti-clamping and sealing of a swinging sliding door of a vehicle on a secondary closing edge (203) which, in the closed The edge (204) extending downwards and upwards is opposite, and the device has a sensor element (205) extending from the bottom upwards at the side of the secondary closing edge for detecting clamping and an additionally arranged on the secondary closing edge. A sealing element (208) extending from bottom to top inside the sensor element, wherein the sensor element and the sealing element are separated from each other.

Description

Device for sensor monitoring and sealing of swinging sliding doors

technical field

The invention relates to a device for monitoring and sealing a swinging sliding door with a sensor on a secondary closing edge.

Background technique

Swing sliding doors (Schwenkschiebetür) are widely used in vehicles for short-distance public transport. Typically, they close flush with the outer walls of the vehicle in the closed state. When opening, the swinging sliding door first moves outwards and then to the side. However, the lateral movement can also start already during the outward movement. This means that, despite the concept "swing", the door does not have to perform an isolated swing movement, but can perform a swing movement. In practice, however, the name swing-sliding door is used, since in a large number of such doors a pivoting movement is carried out during opening and closing.

In the case of a swing-sliding door, if a passenger grasps the secondary closing edge while the door is being closed, there is the risk of fingers being jammed between the secondary closing edge of the door and the doorway of the vehicle compartment. The auxiliary closing edge is the edge extending from bottom to top of the swinging sliding door, which is opposite to the edge extending from bottom to top in the doorway in the closed state.

According to current safety standards, it must be ensured that a person's hand can enter between the secondary closing edge and the door without causing injury or personal danger.

Various sensor monitoring devices for door edges are proposed in the prior art.

EP1561623A2 discloses a finger protection strip consisting of a rubber-elastic profile strip, which is provided with a molded, movable sealing lip extending forwardly from it, and wherein in or on the movable sealing lip Electrical switch strips are arranged in the area of the foot or in the area of the contact.

DE 20311653 U1 discloses a sealing device for the doors of vehicles for transporting people, in particular rail vehicles, wherein a surrounding sealing profile is arranged in the door panel, which is fixed in the edge of the door panel by means of a sealing foot and has two A sealing lip arranged on both sides of a central plane perpendicular to the closing plane and a finger protection profile in the region of the vertical closing edge, wherein an inflatable seal with at least one air chamber is provided. The air chamber is arranged only on one side of the center plane of the sealing lip, wherein at least a part of the air chamber extends into the associated sealing lip. Furthermore, it is known that an electrical switching strip is arranged inside the finger protection profile, which is connected to the clamping protection for reversing the switchover door drive. The sealing lip and the switching strip are combined in one profile and constitute a rather complex inflatable seal.

The risk of fingers getting caught on the secondary closing edge of a swinging sliding door has been reduced mainly by the fact that the secondary closing edge and the door frame are spaced apart from each other in the closed state of the door to such an extent that the finger width remains or larger gaps. This is a passive protection.

However, such a passive solution is not optimal from a vehicle appearance point of view, since smooth and as far as possible gap-free surfaces are desired on the outside of the vehicle. At least every gap should be kept as small as possible.

Another known anti-trapping solution consists in monitoring the motor current of the door and the closing time of the door. A control device monitoring the motor current and closing time reverses the movement of the door in the event of a deviation from the nominal predetermined value. However, such systems are rather sluggish and not optimal in terms of effective trapping prevention.

Contents of the invention

In view of the above-mentioned disadvantages and the solutions already proposed by the prior art, the task of the present invention is to structurally reduce the danger of fingers squeezing on the auxiliary closing edge of the swinging sliding door, so that the auxiliary closing edge and the door can be eliminated. Wide gap between racks.

A system which simultaneously solves this task should be constructed as simply as possible and be maintenance-friendly.

This object is solved according to the invention with a device for jamming-proof and sealing of a swing-out sliding door at a secondary closing edge. Advantageous configurations of the device according to the invention are the subject of further sub-divisions.

The invention relates to a device for anti-clamping and sealing of a swinging sliding door of a vehicle on a secondary closing edge which, in the closed state of the door, is opposite to an edge extending from bottom to top of a doorway, The unit has:

a sensor element extending end-on-side from bottom to top on the secondary closing edge for detecting entrapment, and

a sealing element which is additionally arranged on the inner side of the sensor element and extends from bottom to top,

In this case, the sensor element and the sealing element are separated from each other.

An important idea of the invention is that the secondary closing edge of the pivoting sliding door is provided with a sensor device and thus produces an active control of the door movement.

A further important idea of the invention is that the sensor element and the sealing element of the door are separate elements from each other. The advantages of this structure will be further explained below.

The following advantages are achieved by end-to-end arrangement of the secondary closing edge of the swinging sliding door with sensor elements extending from bottom to top:

1. If a passenger grasps the secondary closing edge of the open door before the door closing process (also referred to as closing movement) begins, the closing movement of the door is prevented by the detection of the sensor element.

2. If a passenger grasps the secondary closing edge of a closed door after the closing movement has started or an object or body is between the secondary closing edge and the door during the closing movement, the door reverses its closing process and reopens.

In both cases, possible injury/crushing is prevented because the door leaf of the swinging sliding door is prevented from closing and thus the dangerous position of the closed door is not reached.

The device according to the invention is suitable for all swinging sliding doors, but in particular for buses and rail vehicles such as low-floor buses, local trains and low-floor trams.

As mentioned, the sensor element extends from bottom to top on the end side of the secondary closing edge. The secondary closing edge is usually an edge extending linearly in the vertical direction. Depending on the design of the door, however, the secondary closing edge can also run linearly in a direction different from the vertical and/or be curved. The sensor element preferably extends without interruption over the entire length of the secondary closing edge and is formed in the form of a sensor strip. However, it is also conceivable to provide sensor elements in individual regions of the secondary closing edge, ie to use interrupted sensor elements, as long as the above-mentioned safety function is still fulfilled.

In one embodiment of the invention, the sensor element is elastically deformable. This additionally prevents trapping or injury by means of the sensor for the door control device.

The sensor element preferably converts the pressure impact on the secondary sealing edge into an electrical signal. Pressure loading occurs by pressing the sensor element, for example if the sensor element is grasped by a passenger or if an object or body is between the secondary closing edge and the door during the closing process.

In a further embodiment of the sensor element, the sensor element comprises a housing fastened to the door leaf and at least one cavity. The housing is preferably made of an elastic material which can be compressed when loaded with external pressure, but regains its original shape when relaxed. The housing of the sensor element can be, for example, an elastic profile that is plugged onto the door leaf. Such a profile can be produced by extrusion or coextrusion and can be formed as a hollow profile.

According to one embodiment, the cavity in the housing of the sensor element can contain, for example, air, preferably compressed air, so that the sensor element is formed as a pneumatic sensor. In the case of a pneumatic sensor, an external pressure application leads to a pressure change in the cavity, which is converted into an electrical signal, for example by triggering a pressure-sensitive switch. The signal is transmitted to the door control device, which then prevents or interrupts the closing operation of the door.

In a further more preferred embodiment of the sensor element, the cavity in the sensor element housing contains the electrical switching strip. The advantage of an electric switch strip compared to a pneumatic sensor is that it is less affected by temperature fluctuations in its triggering behavior. Active monitoring and protection of extrusion is thus possible even in the event of large temperature fluctuations.

The electrical switching strip can be designed in such a way that it comprises two conductive strips which are insulated by an insulator. In the event of pressure from the outside, for example when an object or a passenger's hand is caught, the two conductive strips come together and thus trigger an electrical contact which releases an electrical signal from its side. A signal is thus transmitted to the door control device, which then prevents or interrupts the closing movement of the door. Electrical switching strips of this type are known from the prior art, for example from EP1561623A2.

In a further embodiment of the invention, in addition to the externally acting pressure loading of the sensor element, the motor current of the motor of the door and/or the timing of the closing process of the door is also monitored and evaluated. If the motor current and/or this time deviates from the predefined range of permissible or desired values, the closing process is also interrupted or the door is reopened. This additional monitoring is also referred to as "FailSafe".

Other sensor concepts are, for example, sensors with light-emitting diodes, sensors that operate according to the light barrier principle and/or sensors that detect changes in reflected light or radiation.

In addition to the sensing function, the sensor element can also perform protective functions against contamination and against impacts on the secondary closing edge of the door. If the sensor element is, for example, an elastic rubber profile, it simultaneously performs the function of the protective rubber on the secondary sealing edge in addition to the sensor function.

In one embodiment of the invention, the sensor element is arranged such that, in the closed state of the swing-sliding door, there is a gap between the bottom-upwardly extending edge of the door and the sensor element. This gap is kept as small as possible, in particular smaller than the width of a finger, in order to avoid the styling disadvantages of the wide gaps of the prior art.

In an embodiment that is an alternative to the preceding embodiments, the sensor element is arranged such that, in the closed state of the swing-sliding door, the edge extending from the bottom to the top of the door and the sensor element are closed without play. In this case, the structure is designed such that no pressure, which triggers an unintentional door opening signal, acts on the sensor element. Pressures below the triggering threshold of the sensor element are acceptable, wherein in this case the sensor element can also be used as an additional seal between the secondary closing edge and the edge of the door opening. Such a sealing function of the sensor element is provided, for example, when the sensor element comprises an elastic structure, eg rubber. This sealing function of the sensor element is a sealing element which exists separately from the sensor element independently of the sealing function according to the invention.

In a further embodiment of the device according to the invention, the leaf of the swing-sliding door is formed from at least two elements and the sensor element is additionally formed as a sealing element for sealing the gap between the two elements of the door leaf. The door leaf of the swing-sliding door can, for example, be constructed in multiple layers. The intermediate space existing between the different layers of the door is then covered and sealed by the sensor element on the side of the secondary closing edge.

As already mentioned above, the device according to the invention also includes a sealing element which is separate from the sensor element. The advantage of this arrangement is that only one element has to be replaced in the event of maintenance or failure. In particular if the sealing element is damaged or worn, it is not necessary to replace the usually more expensive but undamaged sensor element at the same time.

A further advantage of the separation of the sensor element from the sealing element is that the sensor element and the sealing element can easily be made of different materials specifically adapted to the function. In the overall embodiment, that is to say in the combined sensor-sealing element, it is difficult to manufacture from different materials. The housing and the sealing element of the sensor element can be extruded profiles, for example. If two different materials are selected and the sensor-sealing element is formed from one block, a coextrusion must be used for production. In the device according to the invention, instead, the two parts can consist of different materials and can be extruded separately, which simplifies the processing.

The sealing element is arranged extending from bottom to top on the side of the secondary closing edge. The sealing element interacts with the edge of the door in such a way that an airflow is prevented from entering or exiting the vehicle through the gap between the edge of the door and the secondary closing edge of the door. For this purpose, the sealing element is arranged on the inner side of the sensor element in such a way that it seals the gap extending from bottom to top between the door opening and the secondary closing edge of the door. The sealing element is preferably elastic and movable on both sides. In one embodiment of the invention, the sealing element consists of an extruded profile. The sealing element can be bent in the direction of the sealing element against which the sealing element rests in the closed state of the door. Curving in the direction of the sealing surface means that the sealing element encloses a smaller and smaller angle with respect to the vertical of the sealing surface in its course on the sealing surface. This achieves an increased contact force of the sealing element on the sealing surface of the door in the closed state of the door. The sealing element itself can also be deformed with low yield by changing the curvature and thus compensating for manufacturing tolerances and dimensional fluctuations due to temperature changes.

The sealing element does not necessarily have to have an air chamber, as the sealing device described in DE 20311653 U1 does. The pressing of the sealing element on the sealing surface of the door opening can thus be achieved completely without pressure loading of the sealing element. The overall construction including the other components of the sensor device is thus simpler and less susceptible to temperature fluctuations.

As already mentioned above, the sensor element and the sealing element can consist of different materials which are specifically adapted to the respective function.

The housing of the sensor element consists, for example, of an elastomer or elastic thermoplastic, which can be cured and usually contains a flame retardant. The sensor element and/or the sealing element are advantageously made of a material which is mainly resistant to UV radiation and/or chemical influences, preferably oil. Resistance to UV radiation can be achieved by filling the material with carbon black or carbon nanofibers.

Advantageous developments of the invention are given by the claims, the description and the drawing. The advantages mentioned in the description of features and combinations of features are only examples and may act alternatively or cumulatively. For other features, refer to the accompanying drawings. Combinations of features of different embodiments of the invention or of features of different claims can likewise be implemented differently from the selected reference relationship of the claims and are thus motivated. This also applies to those features shown in the separate figures or mentioned in the description. These features may also be combined with features of different claims.

Description of drawings

The present invention is further described below with the aid of embodiments and accompanying drawings. The figures are for illustration purposes only and the invention is not limited to the specific combination of features given. which shows:

Figure 1: The principle structure of the double-leaf swinging sliding door and the direction of the main and auxiliary closing edges;

Figure 2: Sectional view through the parts of the doorway of the device according to the invention and perpendicular to the direction of the secondary closing edge when the swinging sliding door is closed;

Figure 3: Sectional view through the parts of the doorway of the device according to the invention and perpendicular to the direction of the secondary closing edge when the swinging sliding door is partially opened;

FIG. 4 : The device according to the invention with the swing-sliding door closed, wherein the edge extending from the bottom to the top of the door and the sensor element are closed without play.

detailed description

Figure 1 shows a portion of a rail vehicle car 101 with the swinging sliding doors open. The swing sliding door is composed of two door leaves 102 . The main closing edges 103 of the two door leaves 102 face each other and bear against each other in the closed state of the doors. The secondary closing edge 104 is the outer edge of the door leaf and lies opposite the edge extending from bottom to top in the door 105 in the closed state. This edge extending from bottom to top is not visible in FIG. 1 because it is covered by door leaf 102 in the open state of the door shown here.

In FIG. 2 a compartment of a rail vehicle 201 and a door leaf 202 of a closed swinging sliding door are partially visible. The secondary closing edge 203 of the swinging sliding door is opposite to the edge 204 extending from bottom to top in the doorway. The sensor element 205 is plugged onto the door leaf 202 from the front side and comprises a housing 206 with a cavity 207 . An electrical switch slat 213 extends in the cavity. The sealing element 208 is designed as a sealing lip and is likewise plugged onto the door leaf 202 . The sealing element closes the gap 209 remaining between the edge 204 extending from bottom to top of the door and the sensor element 205 or the secondary closing edge 203 . In the embodiment shown, the door leaf 202 of the swing-sliding door consists of two layers 210 , 211 . Between the layers 210 , 211 there is an intermediate space 212 which is covered and sealed by the sensor element 205 plugged onto the door leaf 2012 .

The gap 209 is smaller than the width of a finger. This increases the resistance of the air flowing through the gap and thus at least slightly increases the sealing effect. In the embodiment shown, the edge 204 in the doorway has a curved course in the direction of the interior of the vehicle compartment and in this example has a right-angled profile (contact piece 214 ), whose arms protruding into the doorway form a The contact surface of the sealing lip 218 of the sealing element 208. The contact faces point outwards away from the interior of the vehicle compartment. The gap 209 correspondingly has a curved course from the outside of the vehicle body 201 in the direction of the vehicle interior and is closed by the sealing element 208 . The sealing lip 218 of the sealing element 208 has a curved course in the direction of the contact surface of the contact piece 214 , wherein the sealing lip bears against the contact surface in the state shown in FIG. 2 . The sealing element also has a projection 217 which extends parallel to the sealing lip 218 from bottom to top and makes it difficult to engage from the interior of the vehicle compartment into the gap when the door is closed. The curved course of the gap again increases the resistance of the air flowing through the gap 209 , thereby further improving the seal between the body of the rail vehicle 201 and the door leaf 202 .

Corresponding to the curved course of the edge 204 in the doorway, the secondary closing edge 203 of the door has a likewise curved course and has a section 215 protruding in the direction of the doorway edge and a section 216 which is set back further. The sensor element 205 is plugged onto the projection 215 of the secondary closing edge. The sealing element 208 is plugged onto the further setback 216 of the secondary closing edge.

All elements already explained with reference to FIG. 2 can be seen in FIG. 3 . The state of a partially opened door is shown here, in which the door leaf 202 of the swing-sliding door has been opened in direction A. FIG. During a further variation of the door opening movement, the door leaf 202 moves laterally, approximately parallel to the vehicle body 201 in direction B and finally stops in front of the vehicle body beside the doorway, as shown in FIG. 1 .

FIG. 4 shows a device in which the sensor element is arranged in such a way that in the closed state of the swing-sliding door, the edge 204 extending from bottom to top of the door and the sensor element 205 are closed without play. In contrast to the embodiment according to FIG. 2 , in the closed state of the door there is no gap 209 between the secondary closing edge 203 and the edge 204 of the doorway, as shown in FIG. 2 . Instead, the secondary sealing edge 203 rests against the edge 204 and the sensor element 205 can act as an additional seal. All other reference signs have already been explained in FIG. 2 .

Claims (6)

1. for closing the upper anti-device clamping and sealing vehicle swing plug door of seamed edge (203) in pair, described secondary closing seamed edge is opposite with the seamed edge (204) extended from bottom to top on doorway (105) edge under the closed mode of door, and this device has:

Ground, side described secondary close that seamed edge extends from bottom to top, for detecting the sensor element (205) clamped, and

It is additionally provided on described secondary closing seamed edge the potted component (208) extended from bottom to top,

Wherein, described sensor element and described potted component are separated from each other,

It is characterized in that, described potted component (208) is arranged on inside described sensor element, described sensor element (205) described seamed edge (204) with described doorway (105) under the closed mode of described swing plug door contacts, and the sensor element (205) of described seamed edge (204) and vehicle outside seamlessly closes, and the sensor element of vehicle outside (205) is embodied as potted component.

2. device as claimed in claim 1, wherein, the pressure-loaded of described sensor element will be converted to the signal of telecommunication by described sensor element.

3. device as claimed in claim 1, wherein, the potted component of the intermediate space (212) that the door leaf (202) of described swing plug door is made up of at least two element (210,211) and described sensor element (205) is additionally embodied as between sealing said two element (210,211).

4. device as claimed in claim 1, wherein, described sensor element includes electric switch lath (213).

5. device as claimed in claim 1, wherein, described sensor element and described potted component are made from a variety of materials.

6. device as claimed in claim 1, wherein, for the time of the anti-current of electric clamping the motor also monitoring and analyzing described door except described sensor element and/or the closing process of described door.