EP2017216A1 - Escalator step with side strips and method and device for testing side strips - Google Patents

Abstract

The tread element (20) has an element is provided in the tread plate (22) and another element in the strip elements. The two elements act together to prevent movements of the strips (40,50) relative to the tread element from the tread surface away. A stop arrangement is provided with a tread element-stop surfaces at tread element and strip stop surfaces in slot projections of the strips, in order to prevent movements of the strips relative to the tread element. Independent claims are also included for the following: (1) a method for examining the dimension accuracy of a strip part (2) a method for examining mechanical fixing of strip part (3) a testing device for executing the method.

Description

The invention relates to a tread element for a driving device according to claim 1, a method for testing tread element strips according to claim 13 or 18 and a test device according to claim 19 for carrying out these methods.

Driving devices in the sense of the present invention are understood to mean endless driving devices such as moving walks and escalators, which have a large number of interconnected tread elements.

Escalators have per tread each have a treadle and a riser part, and in each standing in use or usable espagnolette are the tread plate in a horizontal arrangement and the riser part substantially in a vertical arrangement. Moving walkways usually have only tread plates, which may be slightly inclined horizontally or in the transport direction in each case in use or usable part of the moving walk.

Driving devices of this type are designed so that they are usable at least in a forward direction of travel.

The tread plates and possibly the riser parts can be provided with strips which usually extend along the edge regions of the tread plates or along a part of these edge regions. In principle, however, such strips can be applied anywhere. In particular, the strips serve as a safety device to protect the users of driving devices from stepping on danger areas, for example to areas in which two tread plates collide, or on lateral edges of the tread plates. The marking of such danger areas can also be done by applying color paint on the tread plates and possibly on the riser parts, but such color finishes often peel off after a short time, which is why the strips are preferable.

Conventionally, such strips, which may for example consist of a suitable metallic material or a suitable plastic, fixed by means of additional fasteners, such as screws, and thus using suitable tools to the tread elements. Such attachment is complex in every respect.

While the tread elements are usually cast aluminum, the strips can be made of a suitable plastic. In general, in this case the strips are manufactured with lower dimensional accuracy or greater tolerances than the tread elements. In addition, the gap widths between the mounted bar and the tread element must be made so large that the difference in thermal expansion of the plastic strip and the aluminum Trittelements is easily compensated during operation. This may have the consequence that the strips after their installation on the tread elements have a distance from adjacent parts of the driving device, which differs from a desired distance so much that a proper and safe operation of the driving device is no longer guaranteed. The mentioned adjacent parts may be adjacent strips and / or adjacent parts of the tread elements and / or stationary parts of the driving device. A proper function of the driving device may be impaired, for example, if there is too far a gap in which dirt accumulates or in which parts of clothing or luggage of users of the vehicle.

• ein verbessertes Trittelement mit einer Leiste zu schaffen, wobei die Leiste einfach herstellbar und ohne grossen Aufwand präzis positionierbar und insbesondere ohne zusätzliche Befestigungselemente und möglichst werkzeugfrei solid montierbar sein soll; sowie
• Verfahren zum Prüfen von Leistenteilen auf ihre Masshaltigkeit und mechanische Festigkeit, und
• eine Vorrichtung zum Durchführen dieser Verfahren vorzuschlagen.

The object of the invention is

• to provide an improved tread element with a bar, the bar should be easy to manufacture and precisely positioned without great effort and in particular without additional fasteners and possible tool-free solid mountable; such as
• Method for testing parts of strips for dimensional accuracy and mechanical strength, and
• to propose an apparatus for carrying out these methods.

• für das Trittelement durch die Merkmale des unabhängigen Anspruchs 1;
• für die Verfahren durch die Merkmale des unabhängigen Anspruchs 13 bzw. 18; und
• für die Vorrichtung durch die Merkmale des unabhängigen Anspruchs 19.

The solution of this task is carried out according to the invention

• for the tread element by the features of independent claim 1;
• for the methods by the features of independent claims 13 and 18, respectively; and
• for the device by the features of independent claim 19.

Preferred developments of the invention are described by the respective dependent claims.

Advantageously, according to the invention can be a bar without additional fasteners, so for example without screws, and as possible without tools mounted on the tread element. Their removal can be accomplished without special tools, possibly taking into account that the strips are not destructible disassembled.

The strips and the tread elements are designed so that movements of the strip, always seen relative to the tread element, (i) transversely to the directions of travel, (ii) perpendicular to the Stepping away and (iii) in the directions completely prevented or at least limited to a very small game.

The mutual connection of the strips with the treads or with the riser parts is similar to spring / groove connections or by means of cooperating or complementary elements, each one arranged on a mounting surface of the tread element and the other element on the bar is.

The strips essentially consist of a strip body and of different approaches to the strip body, which serve to attach the strips. At the attachment surface of the tread element facing surface of the strip groove approaches are provided. Basically, a groove approach (also called Nutenkörper) is shaped so that it, together with the strip body, a groove bounded. In the assembled state, a spring engages in this groove. This spring is arranged on the mounting surface of the tread element, that is on the surface of the tread plate when the bar is to be attached to the tread plate, or on the outer surface of the riser part, when the bar is to be fastened to the riser part.

However, the type of attachment just described are only the basic principle of attachment. Typically, namely, the grooves approach to the bar is designed so that it forms not only one but two Nutenkörper and two grooves that are accessible from opposite sides, wherein in such an arrangement, the mounting surface of the tread complementary two springs. It can be present on a bar also several such spring / groove arrangements. Depending on the arrangement of the bar these spring / groove arrangements may be arranged parallel or in alignment.

The grooves of the strip and the associated springs of the tread element are arranged so that the springs extend substantially parallel to the tread surface or parallel to the outer surface of the riser part in the grooves. The free ends of the Nutenkörper engage under the springs.

The spring for a groove is, as already mentioned, arranged on the respective attachment surface of the tread element, that is to say on the surface of the tread plate or on the outer surface of the riser part. Both the groove and the spring have limited lengths. Adjacent to a longitudinal end of the spring, the attachment surface has an opening, in which in a first assembly step of the grooves approach the strip body can be introduced perpendicular to the mounting surface. In a subsequent assembly step, the bar is moved parallel to the mounting surface so that the spring engages in the groove. The structural elements of the spring / groove connection described so far serve to prevent a displacement of the bar perpendicularly away from the mounting surface of the tread element.

The groove bodies have boundary surfaces that are directed substantially perpendicular to the attachment surfaces. The leading in the second mounting step boundary surfaces of the Nutenkörper form strip-stop surfaces which cooperate in the assembled state with tread-stop surfaces, which are arranged adjacent to that longitudinal end of the springs, which is opposite to the opening. This prevents that the strips in the direction of insertion of the tongue and groove connection, in the direction of the second assembly step, move forward, so to speak.

The strip body has, in addition to the groove extensions, one or more locking lugs disposed on the same surface as the groove lugs. In the assembled state of the bar, these locking lugs engage in complementary locking recesses of the footboard or of the riser part. These locking lugs and the locking openings are arranged so that they prevent displacement of the bar against the insertion direction (counter to the direction of the second assembly step), that is to say in a reverse manner.

The inguinal body is elastically deformable. During the assembly, groove projections or groove bodies are guided over the springs (in the second assembly step), the strip body is elastically deformed in the area of the locking projections so that the locking projections can slide over the fastening surface into the locking openings. At the final location of the assembly of the bar, the locking approach of the bar can engage in the locking opening of the Trittelements, so that the strip body is relaxed by itself again and deformed to its original shape. The ledges of both the groove lugs and the locking lugs then abut against the corresponding tread stops.

In the spring / groove arrangement described above, the springs on the tread element and the grooves and groove body are arranged on the bar. But it is also a reverse arrangement possible, in which the springs are arranged on the strip and the grooves and groove body on the tread element.

The treads of the treadplates and the outer surfaces of the risers usually have integral, transversely extending projections separated by grooves, and the surface of the tine should be designed to have said integral grooves and grooves Projections have an aligned or complementary continuation in grooves and projections of the strip.

As mentioned above, the bar is usually divided into several, namely at least two strip parts. These strip parts may, for example, be arranged with mirror symmetry with respect to a vertical center plane of the tread element running in the transport direction of the driving devices.

The strip or the strip parts can be arranged, for example, exclusively in the edge region of the tread plate opposite the edge, or they can be arranged on a plurality of edge regions.

The strip parts can also be designed as angle strips with two legs. In each angle bar, the first leg can be arranged as a transverse leg along the edge region of the tread plate opposite the edge and the second leg as a longitudinal leg along an edge of the tread plate running in the direction of travel.

The bar may also be arranged to mark a separation of the tread plate into two areas, in particular a left and right in the direction of travel, in order to remind users of the 'right, left' principle.

It is also possible on escalators, bars or strip parts only or additionally to be arranged on the outer surface of the riser.

It has proved to be favorable, the elastically deformable strips or strip parts made of a suitable plastic wherein the tabs on the strip are preferably made integral with the strip.

The strip or the strip parts are preferably with respect to their properties, namely with respect to their material, their shape and their dimensions, designed so that they form bodies that can be deformed, possibly manually, elastically. The arrangement of the groove lugs and the locking lugs on the strip body is such that the strip body is elastically deformed or biased so that the assembly process is made possible. If then the strip or the strip part at the definitive location (when the locking lug is at the location of the locking opening), so the bias can be omitted. To ensure a firm, wobble-free hold of the bar or the sub-bar, it may be advisable to reduce the preload only. In this way, a backup of the strip or the strip parts by means of the spring / groove arrangement and the cooperating stop surfaces can be achieved.

The strips or strip parts and in particular the lugs or groove body on the strips are easy to deform, which is both necessary for the intended assembly and on the other hand can compensate for inaccuracies in the production.

As already mentioned, the strips or strip parts should be arranged so that their grooves and projections are approximately aligned with the grooves and projections of the tread surfaces on which they are mounted. It is also particularly important that desired distances of the strips or strip parts of adjacent parts of the driving device are maintained, so that too large gaps are avoided. For this purpose, the strips or strip parts are tested by means of the new method and the new test device.

In the new method for testing the strips or strip parts, the strips or strip parts are temporarily arranged on a test device. Then reference points, ie reference lines or reference points, of the strips or strip parts are measured in order to determine which actual values of distances would result during assembly. Deviations of the actual values of this measurement from the predefinable desired values are then determined. Finally, the strips or strip parts are released for mounting on the tread elements, on the condition that the deviations of the actual values from the desired values are within certain tolerance ranges.

Fig. 1

eine Rolltreppe, von der Seite, teilweise geschnitten, in stark vereinfachter Darstellung;

Fig. 2A

ein Trittelement, jedoch ohne Leisten, der in Fig. 1 gezeigten Rolltreppe, von der Seite, zum Teil geschnitten;

Fig. 2B

ein Trittelement wie das in Fig. 2A gezeigte Trittelement, mit mehreren Leisten, in vereinfachter Darstellung, von oben;

Fig. 2C

das in Fig. 2B gezeigte Trittelement, mit Leisten, in einem Schaubild;

Fig. 3A

ein Trittelement mit einer Winkelleiste, von der Seite, teilweise geschnitten;

Fig. 3B

die in Fig. 3A gezeigte Winkelleiste, von der Seite;

Fig. 3C

das in den Fig. 3A und 3B gezeigte Winkelelement, in Fahrrichtung gesehen;

Fig. 3D

das in den Fig. 3A, 3B und 3C gezeigte Winkelelement, in einem Schaubild;

Fig. 4A

ein Trittelement mit einer Querleiste; ausschnittweise, in gleicher Darstellung wie Fig. 3A;

Fig. 4B

die Querleiste des in Fig. 4A gezeigten Trittelementes, in Fahrrichtung gesehen;

Fig. 4C

die in Fig. 4B gezeigte Querleiste, in einem Schaubild;

Fig. 5A

ein Trittelement, das zusätzlich Randleisten am Setzstufenteil aufweist, von der Seite, teilweise geschnitten;

Fig. 5B

die Winkelleiste des in Fig. 5A gezeigten Trittelementes;

Fig. 5C

die Randleiste (der Setzstufe) des in Fig. 5A gezeigten Trittelementes, von der Seite;

Fig. 5D

die in Fig. 5A gezeigte Winkelleiste, in einem Schnitt;

Fig. 5E

eine Hälfte des Trittelements in einer Draufsicht;

Fig. 5F

einen Längsschenkel im Schnitt;

Fig. 6A

ein Trittelement, ausschnittsweise, mit Blick auf die Trittfläche, in einem Schaubild;

Fig. 6B

das in Fig. 6A gezeigte Trittelement, mit Blick auf die Trittplatte von unten, in einem Schaubild;

Fig. 7A

den Montagevorgang einer Winkelleiste an einem Trittelement gemäss Fig. 3A;

Fig. 7B

den Montagevorgang einer Querleiste an einem Trittelement gemäss Fig. 4B.

Fig. 7C

eine wie beim Montagevorgang deformierte Winkelleiste;

Fig. 7D

eine wie beim Montagevorgang deformierte Querleiste;

Fig. 8A

eine Winkelleiste mit den Testkräften des Testverfahrens; und

Fig. 8B

eine Querleiste mit den Testkräften des Testverfahrens.

In the following the invention with reference to a preferred embodiment and with reference to the drawings will be described in detail. Here, only an escalator and its tread elements including the strips are described, but the invention also relates to tread elements of moving walks. In all figures, the same or similar constructive elements are provided with the same reference numerals, and to ensure the clarity of the figures, not all reference numerals have been used in each figure. Show it:

Fig. 1

an escalator, from the side, partially cut, in a much simplified representation;

Fig. 2A

a tread element, but without strips, the in Fig. 1 shown escalator, from the side, partially cut;

Fig. 2B

a tread element like the one in Fig. 2A Tread element shown, with several bars, in a simplified representation, from above;

Fig. 2C

this in Fig. 2B tread element shown, with strips, in a diagram;

Fig. 3A

a tread element with an angle strip, from the side, partially cut;

Fig. 3B

in the Fig. 3A shown angle bar, from the side;

Fig. 3C

that in the FIGS. 3A and 3B shown angle element, seen in the direction of travel;

Fig. 3D

that in the Figs. 3A, 3B and 3C shown angle element, in a diagram;

Fig. 4A

a tread element with a transverse strip; excerpts, in the same representation as Fig. 3A ;

Fig. 4B

the crossbar of the in Fig. 4A shown tread element, seen in the direction of travel;

Fig. 4C

in the Fig. 4B shown cross bar, in a diagram;

Fig. 5A

a tread element, which additionally has edge strips on the riser part, from the side, partially cut;

Fig. 5B

the angle bar of the in Fig. 5A shown tread element;

Fig. 5C

the sidebar (the riser) of the in Fig. 5A shown tread element, from the side;

Fig. 5D

in the Fig. 5A shown angle bar, in a section;

Fig. 5E

one half of the tread element in a plan view;

Fig. 5F

a longitudinal leg in section;

Fig. 6A

a tread element, partial, with a view of the tread, in a diagram;

Fig. 6B

this in Fig. 6A Tread element shown, with view of the tread plate from below, in a diagram;

Fig. 7A

the assembly process of an angle bar according to a tread element Fig. 3A ;

Fig. 7B

the assembly process of a cross bar according to a tread element Fig. 4B ,

Fig. 7C

a deformed as in the assembly process angle bar;

Fig. 7D

a deformed as in the assembly process crossbar;

Fig. 8A

an angle bar with the test forces of the test procedure; and

Fig. 8B

a crossbar with the test forces of the test procedure.

In the Fig. 1 shown moving device 10 is also designated 10 escalator, which leads from a lower level E1 to an upper level E2. Side balustrades 12 define the escalator 10. Further, the escalator 10 includes a plurality of tread elements 20 which are interconnected.

Fig. 2A shows a section A from Fig. 1 namely essentially one of the tread elements 20. The tread element 20 comprises a tread plate 22 with a tread surface 22.1 and a riser part 24 with an outer surface 24.1 of the riser. In the respectively usable part of the escalator 10, the treads 22.1 of each tread plate 22 are at least approximately horizontal and the outer surfaces of the risers 24.1 of the risers 24 are arranged approximately vertically. The tread plate 22 and the riser part 24 meet, wherein the tread 22.1 and the outer surface 24.1 a in Fig. 2A form as a point appearing edge 26 which is perpendicular to driving directions of the escalator 10, that is perpendicular to the upward direction of travel F2 and the downward direction of travel F1.

As in Fig. 2B indicated and more precisely in Fig. 3C shown, the tread surface 22.1 and the outer surface 24.1 of the riser portion 24 in the direction of travel F1, F2 extending, separated by grooves 28.1 projections 28.2. Every second projection of the tread surface 22. 1 strikes a projection of the outer surface 24. 1 of the riser part 24.

Moves the usable part of the escalator 10 in the direction of travel F2 and thus up to the plane E2, so runs from the tread plate 22, an edge region 27 which the edge 26 is parallel opposite, before, as in Fig. 2B shown. Moves the usable part of the escalator 10 in the direction of travel F1 and thus down to the level E1, it runs from the tread plate 22, the edge 26 before, as also out Fig. 2B seen.

With M is in Fig. 2B denotes a vertical median plane of the escalator 10.

Fig. 2B also shows a strip 30. This strip 30 comprises a plurality of strip parts, namely four transverse strips 40 and two angle strips 50th

All transverse strips 40 are either of the same design, or they are substantially opposite or mirror-symmetrical, in particular with respect to the median plane M.

The angle strips 50 include a first angle bar, in FIG Fig. 2B left, and a second angle bar, in Fig. 2B right. The two angle strips 50 are formed and arranged substantially the same with respect to the median plane M, but they may be different in detail, in particular with respect to their grooves 28.1 and projections 28.2, which complement corresponding grooves and projections of the tread plate, be different. Each angle bar 50 has a first leg or longitudinal leg 52, which extends in the present example along side edges of the tread surface 22.1 of the tread element 20. Each angle bar 50 also has a second leg or transverse leg 54. This transverse leg 54 has here, in the direction of travel F1, F2, same dimensions as the transverse strips 40 and is arranged in alignment with the transverse strips 40.

Fig. 2C clearly shows the tread element 20, wherein one of the angle strips 50 and some of the transverse strips 40 are mounted, while the other of the angle strips 50 and two transverse strips 40 are ready for mounting.

Fig. 3A shows the tread element 20 with one of the angle strips 50 in a vertical section. The angle bar 50 has the longitudinal leg 52 and the transverse leg 54 and is separate in the 3B, 3C and 3D shown. The angle strip 50 has a strip body 51 in the form of an L. The longitudinal leg 52 has a plurality of groove lugs 50.1 and groove body 50.1, of which two groove bodies 50.1 are approximately equal to each other and form a pair. Two such pairs of Nutenkörpern 50.1 are arranged in the direction of travel F1 and F2, aligned one behind the other, wherein in Fig. 3D only one of these pairs is visible. The transverse leg 54 has a pair of groove bodies 50.1. Each groove body 50.1 forms a groove 50.3.

In each of the grooves 50.3 engages in the assembled state, a spring 200 of the tread plate 22, as with reference to the FIGS. 6A and 6B described below. The paired grooves 50.3 and also arranged in pairs springs 200 extend parallel to the tread 22.1 of the tread plate 22 on the tread element 20 and in the direction of travel F1, F2. At the one longitudinal ends of the groove body 50.1 strip-stop surfaces 50.4 are present. In the assembled state, these strip stop surfaces 50.4 abut against complementary tread plate stop faces 250.1 at the end of the springs 200.

Fig. 4A shows the tread 20 with one of the transverse strips 40 in a vertical section. The crossbar 40 itself is in 4B and 4C shown separately. The transverse strip 40 has groove projections or groove body 40.1. These groove body 40.1 are, as seen in the direction of travel F1 and F2, side by side and form grooves 40.3. The groove body 40.1 and thus also the grooves 40.3 are arranged in pairs and within a pair at least approximately mirror images. As in the FIGS. 6A and 6B shown, grab another 200 springs, the are also arranged in pairs, in the grooves 40.3 of the cross bar 40 a. The one ends of the groove body 40.1 of the cross bar 40 have bar stop surfaces 40.4. In the assembled state, these strip stop surfaces 40.4 abut against complementary tread plate stop surfaces 240.1 at the end of the springs 200.

In the Figs. 5A to 5D a variant of a tread element 20 is shown in which both along two lateral edge regions of the riser part 24 edge strips 60 and, as described above, along three edge regions of the tread plate 22 transverse strips 40 and angle strips 50 are mounted. A total of five types of strips come here for use, namely at the tread plate 22, a pair of angle strips 50 and a plurality of transverse strips 40, and at Setzstufenteil 24 a pair of substantially gegengleicher edge strips 60. The edge strips 60 have groove lugs or groove body 60.1, which form grooves , In essence, these groove bodies 60.1 and grooves are the same design as those of the angle strips 50 and the transverse strips 40. In particular, at one longitudinal ends of the groove body 60.1 strips-stop surfaces are present.

The strip parts, ie the transverse strips 40 and the angle strips 50 for the step plate 22 (and possibly the edge strips 60 for the riser section 20) are further equipped with locking lugs 45 and 55, the strip abutment surfaces 46 and 56 have. These strip-stop surfaces 46, 56 have in the opposite direction as the strip-stop surfaces 40.4, 50.4 of the groove body 40.1, 50.1 of the corresponding strip parts 40 and 50. In the assembled state of the strip parts 40, 50 are the strip-stop surfaces 46, 56 at correspond tread-stop surfaces 240 and 250 in recesses of the tread plate 22 at.

Fig. 6A shows the tread plate 22 with a view of the tread surface 22.1, that is, on the mounting surface for the transverse strips 40 and the angle strips 50th Fig. 6B shows the tread element 20 from below, in particular, the tread plate 22 is clearly shown. The tread plate 22 has elongated recesses 240, 250, 251. The recesses 250 and 251 are mounting recesses with the lateral springs 200 for the angle bar 50. The recesses 240 are mounting recesses with the lateral springs 200 for the transverse strips 40. The recesses 250 are bounded on all sides by the material of the tread 22.2. The recesses 251 and 240 are open on one side or to the side opposite the edge 26 of the tread plate 22.

As already described, the elongated springs 200, which are arranged in pairs and parallel to the travel directions F1, F2, are formed on the lateral edges of the recesses 250, 251, 240. The springs 200 are significantly less elastic than the grooves 40.3, 50.3 of the strip parts 40, 50, in which they engage in the assembled state, and can be almost called rigid.

Those groove body 40.1 and 50.1 of the strips 40 and 50, in the grooves 40.3 and 50.3, the springs 200 of the recesses 240 and 251 engage could easily be inserted into the corresponding open at the entrance recesses 240 and 251. However, the groove bodies 50.1 of the longitudinal legs 52 are introduced into recesses 250 bordered on all sides, therefore these recesses 250 have widened openings 252 at their ends facing the edge 27.

All springs 200 prevent lifting of the strip 30 or the strip parts 40, 50 from the tread plate 22.

The recesses 240, 251, 250 have at their one end the tread plate stop surfaces 240.1, 251.1, 250.1, against which rest in the mounted state, the complementary strip-stop surfaces. As a result, the strip parts 40 and 50 against further displacement in the mounting direction or insertion direction, in Fig. 6A coincident with the direction of travel F1, secured.

The tread plate 22 also has locking recesses 270. In this grip in the assembled state, the locking lugs 45, 55 of the strip parts 40, 50 a. For this purpose, the locking recesses 270 have tread plate stop surfaces 271 against which the complementary strip stop surfaces rest in the mounted state. In this way, the strip parts 40, 50 against a displacement in the opposite direction to the mounting direction or insertion direction, in Fig. 1 coincident with the direction of travel F2, secured.

The tread plate 22 finally has lateral abutment surfaces 280 in order to secure the strip parts 40, 50 against displacement parallel to the tread surface 22.1 and perpendicular to the travel directions F1, F2.

Everything that has been described so far about the training, installation and definitive arrangement of the transverse strips 40 and the angle strips 50 for the tread plate 22 and will be described below, applies mutatis mutandis to the edge strips 60 of the riser part 24th

The assembly of the strips 30 and the strip parts 40, 50 takes place basically in the manner of a snap-lock using the elasticity of the strip body according to the schematic representation in the Figs. 7A to 7D ,

Fig. 7A shows an assembly process for an angle bar 50 on a tread plate 22, wherein arrows A and B indicate substantially the successive relative movements of the angle bar 50 relative to the tread plate 22 during the assembly process.

Fig. 7C shows the elastically deformed for the assembly process angle bar 50 with the grooves approaches 50.1 and with the locking lug 55th

Fig. 7B shows an assembly process for a cross bar 40 on a tread plate 22, wherein an arrow B indicates the relative movement of the cross bar 40 relative to the tread plate 22 during the assembly process.

Fig. 7D shows the elastically deformed for the assembly process cross bar 40 with the grooves approaches 40.1 and the locking lug 45th

The compliance of certain gap mass and the accuracy of the strip parts used 40, 50, 60 is of enormous importance, since it can come too large gap dimensions for pinching clothes or luggage, which can lead to accidents when using the Fahreinrichtungen.

It is also of great importance to secure the strips 30 or the strip parts 40, 50, 60 against a so-called tearing out of the tread element 20. In particular, the angle strips 50 and the transverse strips 40 must be secured against tearing out of the tread plate 22.

Therefore, according to the invention, a corresponding method for testing the strip parts is proposed. This method is performed on a special test device and serves to make suitable strip parts, which are given standards must be maintained and assembled, separated from other strip parts, which may not be released for assembly due to lack of dimensional stability or strength.

• Anordnen jeweils eines Leistenteiles temporär an einer Test-Fixierungsanordnung der Testvorrichtung,
• Vermessen des Leistenteiles an Referenzstellen,
• Ermitteln einer Abweichung eines Ist-Masses von einem Soll-Mass, und
• Freigabe des Leistenteiles zur Montage am Trittelement, wenn die Abweichung innerhalb eines vorgebbaren Toleranzbereiches der Abmessungen liegt.

Bei diesen Verfahrensschritten kann das Soll-Mass am selben Trittelement senkrecht zur Fahrrichtung und in Fahrrichtung der Fahreinrichtung ermittelt werden und/oder es erfolgt die Ermittlung der Abweichung in Bezug auf ein weiteres Leistenteil. Die Abweichung kann aber auch in Bezug auf ein benachbarte Teil ortsfestes Teil der Fahreinrichtung 10 ermittelt werden. Die Referenzstellen können sich an derjenigen Fläche der Leisten befinden, die im montierten Zustand dem Trittelement zugewandt sind.According to the test method, the following method steps are performed to test the dimensions of the strips:

• Arranging in each case a strip part temporarily on a test fixing arrangement of the test device,
• Measuring the strip part at reference points,
• Determining a deviation of an actual mass from a target mass, and
• Release of the rail part for mounting on the tread element, if the deviation is within a predefinable tolerance range of the dimensions.

In these method steps, the target mass can be determined on the same tread element perpendicular to the direction of travel and in the direction of travel of the driving device and / or there is the determination of the deviation with respect to another strip part. The deviation can also be determined with respect to an adjacent part stationary part of the driving device 10. The reference points can be located on that surface of the strips, which face the tread element in the mounted state.

• Anordnen eines gefertigten Leistenteils temporär an einer Test-Fixierungs-Anordnung der Testvorrichtung,
• Anbringen von Testkräften K1 bis K7 an den Leistenteilen, gemäss Fig. 8A und 8B, wobei die Testkräfte höher sind als die maximal angenommenen Ausreisskräfte, die im Betrieb auf die Leistenteile wirken
  • o in Montagerichtung
  • o entgegengesetzt zur Montagerichtung
  • o senkrecht von der Trittfläche weg
• Freigabe des Leistenteiles zur Montage am Trittelement, wenn die Leistenteile unter den Testkräften nicht ausreissen.

According to the test method, the following method steps are carried out to test the strength or resistance of the strips against the mentioned outlier.

• Temporarily placing a finished strip part on a test fixture assembly of the test device,
• Apply test forces K1 to K7 to the strip parts, according to Figs. 8A and 8B , wherein the test forces are higher than the maximum assumed pull-out forces that act on the strip parts in operation
  • o in mounting direction
  • o opposite to the mounting direction
  • o vertical away from the tread
• Release of the rail part for mounting on the tread element, if the rail parts do not tear out under the test forces.

The test device according to the invention is designed for carrying out said method and comprises a test-fixing arrangement which has elements which have the same effect as the corresponding elements of a tread. The test fixture allows the temporary attachment of the strip parts, the rapid and reliable measurement of the deviation (s) of the dimensions and the rapid and reliable application of the test forces.

Claims (22)

Tread element (20) for a driving device (10) which is movable in at least one direction of travel (F1, F2), which tread element (20) has a tread plate (22) with a tread surface (22.1) and a strip (30, 40, 50) has at least one area of the tread surface (22.1),
characterized, - That a guide and holding arrangement with a first element in the form of a groove (40.3, 50.3) and with a second element in the form of a groove (40.3, 50.3) engaging spring (200) is provided, wherein one of the elements (200 ) on the tread plate (22) and the other of the elements (40.3, 50.3) on the strip (30, 40, 50) and the two elements (200, 40.3, 50.3) cooperate to prevent movement of the strip (30, 40 , 50) relative to the tread element (20) perpendicular to the tread surface (22.1) to prevent, and - that a first stop arrangement is provided with first tread element abutment surfaces (240.1, 251.1, 250.1) at the tread element (20) and first strip abutment surfaces (40.4, 50.4) of groove projections (40.1, 50.1) of the strip (30, 40, 50) to prevent movement of the strip (30, 40, 50) relative to the tread element (20). Tread element (20) according to claim 1,
characterized, - That a second stop arrangement is provided with a second tread-stop surface (271) on the tread element (20) and a second last-stop surface on a locking lug (45, 55) of the strip (30, 40, 50) to Movements of the strip (30, 40, 50) relative to the tread element (20) to prevent. Tread element (20) according to claim 1 or 2,
characterized, - That a third stop arrangement is provided with third, side tread-stop surfaces (280) on the tread element (20) and third strip stop surfaces on the strip (30, 40, 50) to movements of the strip (30, 40, 50 ) relative to the tread element (20) perpendicular to the mounting direction (F1) and parallel to the tread plate (22.1) to prevent. Tread element (20) according to one of claims 1 to 3,
characterized, - That the bar (30, 40, 50) has an elastically deformable strip body (300) and is intended to be bent during assembly, in this case the bar (30, 40, 50) to be arranged so that their strip-stop surfaces come to rest on the respective complementary treadboard stop surfaces. Tread element (20) according to one of claims 1 to 4,
characterized,
that the strip (30) comprises a plurality of strip parts (40, 50, 60). Tread element (20) according to one of claims 1 to 5,
characterized,
in that the spring (200) on the tread element (20) and the groove extensions (40.1, 50.1) with the grooves (40.3, 50.3) are arranged on the strip (30) or on strip parts (40, 50). Tread element (20) according to one of claims 1 to 6,
characterized,
that a strip (30) or a key member (40) on a perpendicular to the travel direction (F1, F2) extending edge region of the tread surface (22.1) are arranged. Tread element (20) according to one of claims 1 to 7,
characterized,
that the strip (30) at least two, with respect to an in the travel direction (F1, F2) extending vertical midplane comprises (M) at least approximately equal and opposite strip parts (50). Tread element (20) according to claim 8,
characterized,
in that the strip parts (50) are formed as an angle strip with two legs (52, 54), wherein at each angle strip (50) - The first leg is a longitudinal leg (52) and arranged substantially in the direction of travel (F1, F2), and - The second leg (54) is a transverse leg (54) and perpendicular to the direction of travel (F1, F2) is formed and is preferably intended for mounting adjacent to an adjacent tread element. Tread element (20) according to claim 9,
characterized,
that a strip part (50), in particular in the travel direction (F1, F2), extending substantially along the entire tread plate (22). Tread element (20) according to one of claims 9 to 10,
characterized,
that a strip part (40), in particular in the direction of travel (F1, F2) extends over a limited region of the tread element (20). Tread element according to one of claims 1 to 11,
characterized,
that the spring (200) o extends over a limited area of the tread element (20), o is limited by the first tread plate stop surface and o has a widened transverse to the longitudinal direction of the groove (22.6) opening (252) to form a passage for the Nutenkörper (40.1, 50.1). A tread element (20) according to any one of claims 1 to 12, wherein the driving device (10) is an escalator and the tread element (20) has a riser part (24),
characterized,
that the riser part (24) at least one other strip part, preferably a rim (60) is arranged. Tread element (20) according to one of claims 2 to 13,
characterized,
in that the first strip abutment surface and / or the third strip abutment surface are arranged on a groove shoulder (40.1, 50.1) of the strip part (40, 50). Tread element (20) according to one of claims 2 to 14,
characterized,
that the second strip abutment surface on a locking projection (45, 55) of the strip part (40, 50) is arranged. Method for checking the dimensional accuracy of a strip part (40, 50) intended for mounting on a tread element (20) of a driving device (10), which assembly can be carried out using first elements, for example grooves (40.3, 50.3) on the strip part (40 , 50) and with these co-operating second elements, for example springs (200), on the tread element (20), wherein a desired distance between the strip part (40, 50) and an adjacent part is to be maintained,
characterized, that the manufactured strip part (40, 50) is temporarily arranged on a test-fixing arrangement, - that reference points of the strip part (40, 50) are measured, - That from the position of the reference points, a deviation of an actual distance from said nominal distance is determined, which would manifest during assembly, and - That the strip part (40, 50) is released for mounting on the tread element (20) when the deviation is within a predetermined tolerance range. Method according to claim 16,
characterized,
that the adjacent part is a further rail part (40, 50). Method according to claim 16 or 17,
characterized,
that the adjacent part is an area of the tread element (20). Method according to one of claims 16 to 18,
characterized,
that the adjacent part is another, in particular stationary, part of the driving device (10). Method according to one of claims 16 to 19,
characterized,
in that the reference points are located on that surface of the strip part (40, 50) which, in the mounted state, faces the tread element (20). Method for testing the mechanical strength of a strip part (40, 50) intended for mounting on a tread element (20) of a driving device (10), which can be assembled using grooves (40.3, 50.3) on the strip part (40, 50) and of springs (200) cooperating with these on the tread element (20), wherein a minimum resistance against tearing of groove extensions (40.1, 50.1) on the strip part (40, 50) is to be maintained,
characterized, that the manufactured strip part (40, 50) is temporarily arranged on a test-fixing arrangement of the test device, - That test forces (K1 to K7) on the strip part (40, 50) attack, which are equal to at least the maximum set outliers, and - That the strip part (40, 50) is released for assembly, when the strip part (40, 50) does not rupture under load of the test forces. Test device for carrying out the method according to one of Claims 16 to 21
characterized,
in that the test-fixing arrangement of the test device is designed to receive the strip parts (40, 50) in the same or equivalent manner as they can be received by the tread element (20).

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