Guideway device with apron and sensor element arranged on the apron

Abstract

Guideway device (1), comprising a support structure (6) with two opposing side wall units for receiving components of the guideway device (1); steps (7) or pallets mounted on the supporting structure (6) to form a travel path (8) between the side wall units; and for each side wall unit, an apron (4) running directly to the side of the travel path (8); wherein the apron (4) is held at regular intervals by holding means (13) on the support structure (6); and wherein on a side of a respective apron (4) facing away from the travel path (8) there runs a sensor element (15) which is designed to be actuated by the deformation starting from a limit value of a deformation of the apron (4) in the direction of the supporting structure (6); characterized in that the holding means (13) are designed to be deformable and / or movable in such a way that the apron (4) is deformable in the region of a holding means (13) at least up to the limit value.

Description

Technical FieldThe following embodiments relate to a travel path device, comprising a supporting structure having two mutually opposite side wall units for receiving components of the travel path device, steps or pallets received on the supporting structure for forming a travel path between the side wall units and a skirt running directly to the side of the travel path for each side wall unit, wherein the skirt is held on the supporting structure at regular intervals by holding means and wherein a sensor element runs on a side of a respective skirt facing away from the travel path, which sensor element is configured to be actuated by the deformation starting from a limit value of a deformation of the skirt in the direction of the supporting structure.Furthermore, the following explanations relate to a holding means for holding a skirt on a supporting structure in a track device.Background ArtTrack devices such as escalators or moving walkways are fundamentally known from the prior art. In such track devices, support structures form the outer support structure for components of the track device, such as guides with steps / pallets, drives and electrics lying therein, as well as for add-on and cladding elements, and are usually formed from two side wall units lying opposite one another and connected via cross members. The side wall units usually have profiles welded together as structural elements, from which lattice-like side walls and straps, for example an upper strap and / or a lower strap, are formed.Travel path devices are widely used in particular in public places such as shopping centers, airports and the like. Safety is a particularly important aspect of the design of such travel path devices, since all parts in the travel path device that move relative to one another can lead to injury to persons, e.g. crushing injury. For example, a gap exists between a skirt and steps or pallets forming the travel path, which move relative to the skirt. This gap is generally less than 4 mm, but clothing, shoes or even body parts can be clamped in this gap. In addition to possible injuries, damage to the components of the track device may also result therefrom, for which reason brushes are used for concealing the gap, for example. However, apron brushes cannot take countermeasures, and the travel path device may not be stopped in time to reduce the effects of jamming objects in the gap.From EP 4 328 169 A1, it is already known to use a sensor element which is arranged behind the skirt and detects a deformation of the skirt as a result of an object or body part clamped there. However, such a detectable deformation does not disadvantageously take place in regions in which the skirt is supported against the supporting structure, so that an object clamped there or a body part clamped there cannot be detected in a disadvantageous manner.Starting from this situation, it is an object of the present invention to achieve the detectability of an object or body part clamped between the skirt and the steps or pallets-collectively referred to generally as foreign bodies-over the entire extent of the skirt.Description - Technical SolutionThe present object is achieved by the features of the independent claims. Advantageous embodiments are specified in the dependent claims, the description and the drawings. Insofar as technically possible, the teachings of the subclaims can be combined as desired with the teachings of the main and dependent claims.In particular, the object is accordingly achieved by a travel path device, having a supporting structure with two mutually opposite side wall units for receiving components of the travel path device, steps or pallets received on the supporting structure for forming a travel path between the side wall units and a skirt running directly to the side of the travel path for each side wall unit, wherein the skirt is held on the supporting structure at regular intervals by holding means, wherein a sensor element runs on a side of a respective skirt facing away from the travel path, which sensor element is configured to be actuated by the deformation starting from a limit value of a deformation of the skirt in the direction of the supporting structure, and wherein the holding means are formed to be deformable and / or movable in such a way that the skirt is deformable at least up to the limit value in the region of a holding means.Advantageous aspects are explained below and preferred modified embodiments are described further below. Explanations, in particular regarding advantages and definitions of features, are basically descriptive and preferred, but non-limiting examples. Where an explanation is limiting, this is expressly mentioned.If ordinal numbers, for example "first", "second", etc., are used, for example for designating a component, an element, a method step or a method action, these ordinal numbers are provided purely for differentiation in the designation and do not indicate dependencies or orders. That is to say, in particular, that, for example, a device does not have to have a "first component" in order to have a "second component". A device can also have a "first component" and a "third component", but without necessarily having a "second component". It is also possible to provide a plurality of units of the same ordinal number, that is to say, for example, a plurality of "first components".In the sense of the present disclosure, the general term "travel path device" refers primarily to escalator devices and moving walkway devices (the latter, in particular in a continuously variable configuration in an at least approximately planar orientation or with a negligible gradient) and person transport devices of the type with an endlessly revolving transport device. A travel path device comprises, for example, steps or pallets forming the transport device, which are connected to driven traction means and are guided in guides. The guides and the traction means and further components of the travel path device are usually held within support structures which extend substantially laterally therefrom in the longitudinal direction and which are formed for example for the most part from two side wall units which are situated opposite one another and are connected to one another via cross members and optionally also a base plate.According to the understanding of the present disclosure, a "side wall unit" comprises, for example, a side wall and, as further structural elements / sections, at least one belt assigned to this side wall, in particular an upper belt and / or a lower belt, wherein the belt or the belts can be formed integrally with the side wall, integrated or as components separate from the side wall. Alternatively, a strap is also referred to as a strap. The term "side wall" refers to a side structure which, for example, extends at least in sections flat in only one side plane and / or is formed and / or reinforced at least in sections by profiles, braces or carriers extending beyond the side plane. In general, the side wall is formed from structural elements or structural sections which, as planar structural sections, absorb forces in a plurality of directions and / or, as rod-shaped or strut-like structural elements / sections, absorb the respective forces along the longitudinal extent predetermined by the alignment. The side wall is thus designed, for example, as a closed surface, as a pure lattice structure or as a structure with portions of closed surfaces and portions with a lattice structure.A step or pallet comprises, for example, a tread having a front tread edge, a rear tread edge and two side tread edges and, in the case of a step, a riser extending downwardly from the front tread edge, the riser having at least one curved portion and a lower riser edge. A step or pallet may further have two side frames below each side tread edge, including in particular a roller axle and a seat for connecting the step or pallet to the traction means.A tread surface is formed by a flat portion of the step or pallet having an upper surface for receiving one or more passengers or luggage items, which preferably provides non-slip contact to the passenger and / or luggage. The tread is horizontally oriented and is maintained in this horizontal orientation throughout the entire travel path. A riser at one step serves as a guide for an adjacent step in the transition of the steps from a flat configuration to a stair configuration with each other.According to the present understanding, a skirt is a panel or a section of a molded body, and extends under the steps or pallets in their respective arrangement along the travel path, so that the tread surfaces of the steps or pallets are arranged above a lower edge of the skirt at all times. The apron furthermore also extends in any position of the travel path above the steps or pallets located there, so that the tread surfaces of the steps or pallets are arranged at all times below an upper edge of the apron. The apron thus covers an area to the sides of the tread surfaces and thus prevents persons or objects located thereon from leaving the tread surface along the travel path. The skirt is removed from the steps or pallets by a gap dimensioned to prevent grinding and is held on the supporting structure in such a position, for example at regular intervals on recurring structural elements of the supporting structure. For example, the skirt is formed by a sheet metal or a profile.The solution of the object with the travel path device described above is based on the teaching that a deformation of the skirt caused by a foreign body between the steps / pallets and the skirt basically enables a reliable detection of the foreign body or the penetration of the foreign body into the gap. A correspondingly deformable skirt, despite the deformability, also offers sufficient protection against the penetration of a foreign body into the gap and can thus continue to fulfil the primary safety function which it has to perform. In order to enable detectability on the basis of the deformation now over the entire extent of the skirt, it is proposed to configure the skirt in any position in a deformable or movable manner, for which purpose a deformable or movable mounting of the skirt in the form of a deformable and / or movable holding means is provided on the supporting structure. The deformable or movable holding means brings about a secure positioning of the skirt in particular in a normal state, while in the case of a foreign body entering the gap, the holding means escapes or yields in the region of the holding means the deformation of the skirt necessary for detection. The deformation or movement of the holding means is therefore effected only by the force as a result of the foreign body clamped in the gap and not already by lower forces which may occur during normal operation. The detectability of a foreign body between steps / pallets and the skirt is then achieved over the entire extent of the skirt.The holding means can be configured movably, for example, by means of a hydraulic or pneumatic piston-cylinder arrangement or can have a movable, for example pivotable, and spring-loaded element which is held in its intended position by the spring force in order to position the skirt.Alternatively or additionally, it can be provided that the holding means are designed to be elastically deformable. It is then advantageously made possible without repair or maintenance that the holding means and thus the skirt, after removal of the foreign body, return to its intended position, essential for its primary function, directly next to the steps or pallets with a small gap width, at least if the skirt has a corresponding elasticity. The elastic deformation of the holding means is in any case provided so far that a typical deformation to be expected as a result of a foreign body can be absorbed purely elastically. In particular, the skirt is in turn likewise configured with a corresponding elastic deformability.Alternatively or additionally, it can be provided that the holding means are supported on the supporting structure via an elastically deformable shaped element, in particular a rubber element. Such a shaped element, in its unloaded state, takes a certain shape, by means of which the precise positioning of the skirt relative to the travel path is achieved, while it responds to a load due to elastic deformation. Thus, in particular, the primary function of the skirt can be achieved reliably by positioning it relative to the travel path, while at the same time the elastic deformability is achieved. Advantageously, an elastic molded element can also be determined within wide ranges in its elastic properties and in its load-bearing capacity in the unloaded state by material selection and shape.Alternatively or additionally, it can be provided that the shaped element is connected on a first side to a first sleeve rigidly connected to the supporting structure and on a second side to a second sleeve rigidly connected to the skirt. In particular, the shaped element is configured annularly in this case, such that the sleeves and the shaped element in their entirety form a passage, and a connection to the supporting structure or to the skirt can be produced by means of an element which engages through the passage, for example by means of a threaded bolt. In any case, one of the sleeves can be designed for this purpose as a nut interacting with the element. By means of the positioning of the relevant sleeve on the element gripping through the passage, in particular a position adjustment of the skirt relative to the supporting structure can be achieved in a simple manner. In this case, the sleeves and the shaped element preferably form an integrated unit with one another, for example by frictional or material bonding with one another, such that the positioning of the relevant sleeve on the element gripping through the pass-through simultaneously brings about a positioning of both sleeves and of the shaped element.Alternatively or additionally, it can be provided that the first sleeve has a recess and is arranged with the recess on a carrier of the supporting structure. In particular, the recess is an annular groove which is formed, for example, between two parts of the first sleeve, wherein the two parts can be inserted from two sides into a hole-shaped recess on the carrier and fastened. By arranging the first sleeve on the carrier by means of the recess, a secure and easy-to-install fastening of the holding means on the supporting structure is achieved, which can be produced without tools in the simplest case. In the same way, alternatively or additionally, the second sleeve can have a recess and be arranged with the recess on the skirt.Alternatively or additionally, it can be provided that the second sleeve is connected to a T-piece, wherein the T-piece engages in a retaining profile arranged on the side of the skirt facing away from the travel path. In particular, the T-piece is arranged on a threaded bolt which interacts with an internal thread formed on the second sleeve formed as a nut in order to be able to finely adjust a positioning between the skirt and the supporting structure. The T-piece engages in particular in the manner of a snap fastener in an opening on the retaining profile or can be locked or locked there by a locking element. Advantageously, the T-piece can form a simple and secure fastening, which can be produced in particular without direct view. In the same way, alternatively or additionally, the first sleeve can be connected to a T-piece, wherein the T-piece engages in a recess arranged on the supporting structure.Alternatively or additionally, it can be provided that the shaped element is clamped between the first sleeve and the second sleeve. For this purpose, for example, the second sleeve has a thread which is surrounded by the forming element and the first sleeve, wherein a securing nut holds the forming element and the first sleeve clamped on the thread and against the second sleeve. A deformation of the shaped element can then act in the direction opposite to the prestress. The force acting between the skirt and the supporting structure is then substantially guided through the shaped element, so that a deformation can be absorbed completely by the elastic properties of the shaped element.Alternatively or additionally, it can be provided that the shaped element is connected, in particular bonded, to the first sleeve and / or to the second sleeve in a materially continuous manner. The shaped element and the sleeves then form an integral and load-bearing unit which can be designed to be finely positionable in its entirety with respect to the supporting structure and / or with respect to the skirt. The force acting between the skirt and the supporting structure is then substantially guided through the shaped element, so that a deformation can be absorbed completely by the elastic properties of the shaped element.Alternatively or additionally, it can be provided that the first sleeve and the second sleeve together form an engagement for a tool on both sleeves simultaneously, wherein the engagement is interrupted by the shaped element arranged between the sleeves. This embodiment is advantageous in particular when one of the sleeves is designed as a nut and is arranged on an element designed as a threaded bolt in order to achieve a fine adjustment of the position of the skirt relative to the supporting structure. As a result of the joint engagement, the sleeves can be moved equally by the tool, with the result that a relative movement transmitted via the shaped element, in particular a torsional movement, as a result of which the shaped element can change its predefined shape or be damaged, is avoided.Alternatively or additionally, it can be provided that the sensor element is designed to generate an electrical short circuit starting from the limit value of a deformation. The electrical short circuit can then trigger a control mechanism and / or a circuit, which in turn can shut down the travel path device and stop or stop all movable parts of the travel path device, in particular all components in the vicinity of the region in which the short circuit was triggered. Alternatively, the travel path device may be placed in a restricted operation safety mode in response to the electrical short circuit. In particular, the sensor element can be activated at any point of its longitudinal extension and / or generate a triggering reaction, in particular an electrical short circuit.Alternatively or additionally, it can be provided that the sensor element comprises a first metal strip and a second metal strip, wherein the metal strips are arranged spaced apart from one another and are configured to generate an electrical short circuit upon contact. In particular, the metal strips can be arranged parallel and at a distance from one another, for example 3 to 5 mm. Then, when the skirt is deformed beyond a predetermined threshold value due to a foreign matter in the gap, the first metal strip and the second metal strip to which an electric voltage is applied are brought into contact to establish the electrical short circuit. This electrical short circuit can in turn trigger a stop of the steps or pallets in order to prevent injuries or damage to objects or the travel path device itself.Alternatively or additionally, it can be provided that the first metal strip is arranged on a pushing device in contact with the skirt, wherein the second metal strip is arranged on a support profile arranged facing away from the skirt. The impact device is then designed to be deformable in such a way that, as a result of a deformation of the skirt, the impact device is deformed and thus the metal strips are contacted.Alternatively or additionally, it can be provided that the skirt is formed from a metal sheet. A metal sheet offers good dimensional stability and rigidity in order to reliably fulfil the primary function of the skirt, namely the stable lateral termination of the travel path. At the same time, a metal sheet can be formed to be sufficiently deformable locally in order to be detectably deformed as a result of a foreign body in the gap between the steps / pallets and the skirt.The object is furthermore achieved by a holding means for holding a skirt on a supporting structure in a track device, in particular a track device described above, the holding means having a first sleeve which can be rigidly connected to a supporting structure of the track device, a second sleeve which can be rigidly connected to a skirt of the track device and an elastically deformable shaped element, wherein the shaped element is connected on a first side to the first sleeve and on a second side to the second sleeve, in particular is clamped by the sleeves. A travel path device with the above-described advantages can be advantageously configured with the holding means, wherein a precise and positionally accurate positioning of the skirt relative to the travel path and a detectable deformability of the skirt in the region of the holding means can simultaneously be achieved by the shaping element connected to the sleeves. In the case of a shaped element clamped between the sleeves, the connection between the shaped element and the sleeves is understood as a force-fit connection.Alternatively or additionally, it can be provided that the first sleeve has a recess for receiving a carrier of the support structure of the travel path device and / or wherein the second sleeve is connected to a T-piece for engagement in a retaining profile arranged on the side of the skirt of the travel path device facing away from the travel path. The recess allows the first sleeve to be advantageously arranged on a carrier of the support structure of the track device, wherein a secure and simple-to-install fastening is advantageously achieved by means of the recess, which fastening can be produced without tools in the simplest case. Advantageously, the T-piece can provide a simple and secure fastening of the holding means to a skirt of a travel path device, which can be produced in particular without direct view.Alternatively or additionally, it can be provided that the first sleeve and the second sleeve together form an engagement for a tool on both sleeves simultaneously, wherein the engagement is interrupted by the shaped element arranged between the sleeves. This embodiment is advantageous in particular when one of the sleeves is designed as a nut and is designed for arrangement on an element designed as a threaded bolt in order to achieve a fine adjustment of the position of the skirt relative to the supporting structure in a track device. As a result of the joint engagement, the sleeves can be moved equally by the tool, with the result that a relative movement transmitted via the shaped element, in particular a torsional movement, as a result of which the shaped element can become detached from a sleeve or be damaged, is avoided.Brief Description of the DrawingsA preferred technical solution is explained in more detail below with reference to the attached drawings on the basis of preferred exemplary embodiments. The phrase "figure" is abbreviated "Figure" in the drawings.In the drawings, FIG. 1a is a side view of a schematically illustrated travel path device designed as an escalator; FIG. 1 bshows a perspective view of the entry region of the travel path device according to FIG. 1 a, which is designed as an escalator; FIG. 2a is a sectional view in the area of the skirt in a travel path device; FIG. 2 b shows a perspective view of a holding element during the process of fine positioning with respect to a supporting structure of a track device; and FIG. 3 is a perspective view of a sensor element.Detailed Description of the DrawingsThe described exemplary embodiments are merely examples which can be modified and / or supplemented in a wide variety of ways within the scope of the claims. Each feature described for a particular embodiment may be used independently or in combination with other features in any other embodiment. Each feature described for an embodiment of a particular claim category may also be used in a corresponding manner in an embodiment of a different claim category.FIG. 1 ashows a schematic representation of an exemplary embodiment of a travel path device 1 described herein. In the embodiment shown, the travel path device 1 is embodied as escalator, which connects a lower and an upper floor of a building and for this purpose has a lower platform 2.1 and an upper platform 2.2. In other embodiments, the travel path device 1 may be or comprise a travel walkway or a driving band.Components of the track device 1, such as guide rails 3, a skirt 4 and a balustrade 5 with a handrail 5.1 arranged thereon, are fastened to a supporting structure 6 of the track device 1, which is designed as a framework and has two mutually opposite side wall units. The guide rails 3 receive steps 7 (in the case of a platform embodiment, alternatively pallets), wherein the steps 7 form a travel path 8 on the upper side of the travel path device 1. The travel path 8 is curved in transition regions 9.1 and 9.2 and is turned in turning regions, which are not shown in more detail in FIG. 1a. The steps 7 are located on the guide rails 3 and are pulled by a traction means 10, wherein the steps 7 form a staircase with one another on account of the path of the guide rails 3 along the central part of the travel path 8 and are arranged flat with respect to one another before / after passing the transition regions 9.1, 9.2.FIG. 1 bshows a further representation of the travel path device 1 from a perspective view of an upper transition region 9.2. The arrangement of the skirts 4 on both sides of the travel path 8 can be seen, wherein skirt brushes 4.1, which are illustrated abstractly in each case, are arranged on the skirts 4 and each cover, but do not close, a respective gap between the steps 7 and the skirts 4.FIG. 2a shows the attachment of the skirt 4 to a support 6.1 of the support structure 6, for which purpose a retaining profile 11 is arranged, for example glued, on the rear side of the skirt 4, which profile has an opening 11.1 on the side facing away from the skirt 4, in which opening a retaining means 13 engages. Such a holding means 13 is arranged, for example, at regular intervals along the supporting structure 6 on a plurality of supports 6.1 in order to receive the skirt 4 along its entire extent and to position it precisely with respect to the travel path 8. Furthermore, on the side of the apron 4 facing away from the travel path 8, a sensor element 15 is arranged on the support 6.1 via a support arm 16. The sensor element 15 extends along the travel path 8 parallel to the apron 4 and is described in more detail below with reference to FIG. 3. Like the holding means 13, supporting arms 16 are arranged at regular intervals on the supporting structure 6, in particular on supports 6.1, in order to position the sensor element 15 along its extension.The holding means 13 is formed by a threaded bolt 18 with a T-piece 19 formed thereon for engagement with the opening 11.1 of the holding profile 11. The retaining profile 11 is held on the T-piece 19 by means of a locking nut 17. Furthermore, the holding means 13 has a second sleeve 20.2, which is designed as a nut and is screwed onto the threaded bolt 18 and is connected to a first sleeve 20.1 via a shaped element 21. For this purpose, the second sleeve 20.2 has a thread 22 passing through the forming element 21 and the first sleeve 20.1, on which a securing nut 24 holds the forming element 21 and the first sleeve 20.1. The first sleeve 20.1 furthermore has an annular recess 25 to which the carrier 6.1 is fastened. For example, for this purpose, the first sleeve 20.1 is formed from a first part 26.1 and a second part 26.2, which are arranged on the carrier 6.1 from different sides and are connected to one another.As can also be seen from FIGS. 2 aand 2 b, the first sleeve 20.1 and the second sleeve 20.2 together form an engagement 28 for a tool 29 on both sleeves 20.1, 20.2 simultaneously, wherein the engagement 28 is interrupted by the shaped element 21 arranged between the sleeves 20.1, 20.2. The sleeves 20.1, 20.2 can then be adjusted jointly on the threaded bolt 18 without the shaped element 21 being twisted.In FIG. 3, the sensor element 15 is also shown in detail. The sensor element 15 comprises a pushing device 15.1 and a support profile 15.2. A first metal strip 30.1 is arranged on the impact device 15.1 and a second metal strip 30.2 is arranged on the support profile 15.2, wherein the first and the second metal strip 30.1, 30.2 extend substantially along the skirt 4 and are arranged such that they come into contact with one another upon deformation of the skirt 4 from a certain limit value and thereby cause an electrical short circuit. The metal strips 30.1, 30.2 of the illustrated embodiment are designed as metal strips with a predetermined width and are supplied with electrical energy in order to be able to generate the electrical short circuit on contact between the first and the second metal strips 30.1, 30.2.List of reference characters1 Travel path device 2.1 Lower platform of travel path device 2.2 Upper platform of travel path device 3 Guide rails of travel path device 4 Apron of travel path device 4.1 Apron brush on the apron 5 Balustrade of travel path device 5.1 Handrail on the balustrade 6 Support structure of travel path device 6.1 Support of support structure 7 Steps of travel path device 8 Travel path of travel path device 9.1 Lower transition region 9.2 Upper transition region 10 Traction means 11 Holding profile 11.1 Opening on the holding profile 13 Holding means 15 Sensor element 15.1 Pushing device of sensor element 15.2 Support profile of sensor element 16 Support arm for sensor element 17 Locking nut 18 Threaded bolts of holding means 19 T piece of holding means 20.1 First sleeve of holding means 20.2 Second of holding means 21 Shaped element of the holding means Holding means 22 Thread on the second sleeve 24 Securing nut 25 Recess on the first sleeve 26.1 First part of the first sleeve 26.2 Second part of the first sleeve 28 Engagement 29 Tool 30.1 First metal strip 30.2 Second metal stripReferences included in the specificationThis list of documents cited by the applicant has been produced in an automated manner and is only included for the better information of the reader. The list is not part of the German patent application or utility model application. The DPMA does not take any adhesion for any faults or omissions.Patent Literature citedEP 4 328 169 A1

[0005]

Claims

Travel path device (1), comprising a supporting structure (6) with two mutually opposite side wall units for receiving components of the travel path device (1); steps (7) or pallets received on the supporting structure (6) for forming a travel path (8) between the side wall units; and a skirt (4) running directly to the side of the travel path (8) for each side wall unit; wherein the skirt (4) is held on the supporting structure (6) at regular intervals by holding means (13); and wherein a sensor element (15) runs on a side of a respective skirt (4) facing away from the travel path (8), which sensor element is configured to be actuated by the deformation starting from a limit value of a deformation of the skirt (4) in the direction of the supporting structure (6); characterized in that the holding means (13) are designed to be deformable and / or movable in such a way that the skirt (4) is deformable at least up to the limit value in the region of a holding means (13).Travel path device (1) according to claim 1, wherein the holding means (13) are designed to be elastically deformable.Travel path device (1) according to claim 2, wherein the holding means (13) are supported on the supporting structure (6) via an elastically deformable shaped element (21), in particular a rubber element.Travel path device (1) according to claim 3, wherein the shaped element (21) is connected on a first side to a first sleeve (20.1) rigidly connected to the support structure (6) and on a second side to a second sleeve (20.2) rigidly connected to the skirt (4).Travel path device (1) according to claim 4, wherein the first sleeve (20.1) has a recess (25) and is arranged with the recess (25) on a carrier (6.1) of the support structure (6).Travel path device (1) according to claim 4 or 5, wherein the second sleeve (20.2) is connected to a T-piece (19), wherein the T-piece (19) engages in a retaining profile (11) arranged on the side of the skirt (4) facing away from the travel path (8).The track device (1) according to any one of claims 4 to 6, wherein the forming element (21) is clamped between the first sleeve (20.1) and the second sleeve (20.2).Travel path device (1) according to one of claims 4 to 7, wherein the first sleeve (20.1) and the second sleeve (20.2) together form an engagement (28) for a tool (29) on both sleeves (20.1, 20.2) simultaneously, wherein the engagement (28) is interrupted by the shaped element (21) arranged between the sleeves (20.1, 20.2).Travel path device (1) according to one of the preceding claims, wherein the sensor element (15) is designed to generate an electrical short circuit starting from the limit value of a deformation.Travel path device (1) according to one of the preceding claims, wherein the sensor element (15) comprises a first metal stiffener (30.1) and a second metal strip (30.2), wherein the metal strips (30.1, 30.2) are arranged spaced apart from one another and are configured to generate an electrical short circuit upon contact.Travel path device (1) according to claim 10, wherein the first metal strip (30.1) is arranged on a pushing device (15.1) in contact with the skirt (4) and wherein the second metal strip (30.2) is arranged on a support profile (15.2) arranged facing away from the skirt (4).Travel path device (1) according to one of the preceding claims, wherein the skirt (4) is formed from a metal sheet.Holding means (13) for holding a skirt (4) on a supporting structure (6) in a track device (1), in particular a track device (1) according to one of the preceding claims, the holding means (13) having a first sleeve (20.1) which can be rigidly connected to a supporting structure (6) of the track device (1); a second sleeve (20.2) which can be rigidly connected to a skirt (4) of the track device (1); and an elastically deformable shaped element (21); wherein the shaped element (21) is connected on a first side to the first sleeve (20.1) and on a second side to the second sleeve (20.2), in particular is clamped by the sleeves (20.1, 20.2).Holding means (13) according to claim 13, wherein the first sleeve (20.1) has a recess (25) for receiving a carrier (6.1) of the supporting structure (6) of the travel path device (1) and / or wherein the second sleeve (20.2) is connected to a T-piece (19) for engagement in a holding profile (11) arranged on the side of the skirt (4) of the travel path device (1) remote from the travel path (8).Holding means (13) according to claim 13 or 14, wherein the first sleeve (20.1) and the second sleeve (20.2) together form an engagement (28) for a tool (29) on both sleeves (20.1, 20.2) simultaneously, wherein the engagement (28) is interrupted by the shaped element (21) arranged between the sleeves (20.1, 20.2).

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