EP0206986B1 - Running-board, particularly light metal plank, and method of manufacture - Google Patents

Running-board, particularly light metal plank, and method of manufacture Download PDF

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Publication number
EP0206986B1
EP0206986B1 EP86810231A EP86810231A EP0206986B1 EP 0206986 B1 EP0206986 B1 EP 0206986B1 EP 86810231 A EP86810231 A EP 86810231A EP 86810231 A EP86810231 A EP 86810231A EP 0206986 B1 EP0206986 B1 EP 0206986B1
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EP
European Patent Office
Prior art keywords
longitudinal
tread surface
surface according
profile
interspaces
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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EP86810231A
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German (de)
French (fr)
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EP0206986A2 (en
EP0206986A3 (en
Inventor
Erich Herz
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3A Composites International AG
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Alusuisse Lonza Services Ltd
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Priority to AT86810231T priority Critical patent/ATE59077T1/en
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Publication of EP0206986A3 publication Critical patent/EP0206986A3/en
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F11/00—Stairways, ramps, or like structures; Balustrades; Handrails
    • E04F11/02—Stairways; Layouts thereof
    • E04F11/104—Treads
    • E04F11/112—Treads of metal or with an upper layer of metal
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/02—Load-carrying floor structures formed substantially of prefabricated units
    • E04B5/10—Load-carrying floor structures formed substantially of prefabricated units with metal beams or girders, e.g. with steel lattice girders
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F11/00—Stairways, ramps, or like structures; Balustrades; Handrails
    • E04F11/02—Stairways; Layouts thereof
    • E04F11/104—Treads
    • E04F11/16—Surfaces thereof; Protecting means for edges or corners thereof
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G1/00—Scaffolds primarily resting on the ground
    • E04G1/15—Scaffolds primarily resting on the ground essentially comprising special means for supporting or forming platforms; Platforms
    • E04G1/152—Platforms made of metal or with metal-supporting frame

Definitions

  • the invention relates to a walkable tread made of metal, in particular a light metal plank, with longitudinal ribs molded onto it and recesses provided in it and penetrating the plank.
  • the invention also relates to a method for its production by extrusion of light metal.
  • step surface can be found in US Pat. No. 2,742,121, the continuous longitudinal ribs of which flank rows of recesses; these recesses have pairs of rib edges pointing upwards.
  • the longitudinal rib runs above a longitudinal groove formed in the underside of the tread surface and is subdivided by incisions or the like. Gaps such that the respective longitudinal groove forms the recesses in the gaps.
  • the length of the intermediate spaces measured in the direction of the longitudinal flu is at least half shorter than the rectified length of the sections of the longitudinal rib remaining after the intermediate spaces have been produced.
  • the tread has a wave-shaped cross section, in which the wave crests are formed by the longitudinal ribs and the profile of the wave troughs corresponds approximately to that of the longitudinal grooves.
  • longitudinal grooves of rectangular cross section for example, this leads to troughs of the same shape and thus to strip-shaped longitudinal ribs.
  • the cross sections of the wave troughs and wave crests are the same as those of truncated cones, which leads to slightly inclined flanks of the longitudinal ribs.
  • the walkable treads are particularly suitable for use in vehicle and building construction, for example as a cockpit and passenger stairs for airplanes, footbridges for tankers, outdoor stairs or footbridges for buildings and pedestrian overpasses.
  • a stair step 10 made from an extruded light metal profile has, according to FIG. 1, a step plate 11, on the longitudinal edges 12 of which a channel profile 13 is formed; the free leg 14 of the channel profile 13 is inclined away from the tread plate 11 or a parallel Q 1 at an acute angle w and ends in a molding 15.
  • the latter offers an undercut circular groove 16.
  • the openings 17 of the round grooves 16 of both channel profiles 13 are delimited by profile edges 18 - bevelled at a common angle t - and open towards one another.
  • the distance a of the inner molding wall 19 from a central axis M of the step 10 corresponds approximately to twice the length b of the leg 14.
  • central axis M runs a molded-on central web 20 which ends in a groove formation 2 '; this is equipped with a downward undercut groove 22, the center point Z 1 of which lies on a parallel line Q to the tread plate 11 together with the center points Z of the other two round grooves 16.
  • the opening 23 of the central groove 22 is also delimited by inclined edges 24 which determine an angle t.
  • the inclined edges 24 are in the rest of the molded cross feet 25 - the groove 21 offers the cross section of an Omega.
  • an undercut comb indentation 26 runs at the bottom of the grooves 16, 22 and lies opposite the respective opening 17 and 22, respectively. These grooves 16, 22 allow the stair step 10 to be simply fixed to a base frame.
  • the stair plate 11 is corrugated in cross-section, namely at a distance e between the central axes A of adjacent wave crests 30 and wave troughs 31; the number of wave crests 30 of a plate half of the embodiment shown in FIGS. 1, 2 is ten.
  • the wave crests 30 and wave troughs 31 each offer rectangular cross sections, as digested in particular by FIG. 1. Beneath each wave crest 30 producing a longitudinal rib there is a longitudinal groove 32 which - those troughs 31 offering - shape grooves 33 in the plate surface 35 corresponds. This creates a crenellated profile on both sides.
  • the top view of FIG. 2 shows that the longitudinal ribs 40, which are provided with sawtooth profiles, are interrupted at longitudinal spacing i (approximately 3 ⁇ e); In the space 36 of width s thus created between two sections 39 of rectangular top view that have remained standing, the lower longitudinal grooves 32 can be seen as recesses 32 m , which can ensure sufficient water drainage; the sections 39 formed from the longitudinal ribs 30 with their longitudinal webs 40 and transverse edges 41 form a non-slip tread.
  • a corresponding step surface can be seen in the embodiment of FIGS. 3, 4.
  • the sections 39 are provided on their surface with cross-section crenellated longitudinal projections 40 m , of which the two outer parts overlap the trough 31 flanked by them and form edge tabs 34 according to FIG. 4.
  • a rubber profile 50 is inserted, the surface 51 of which can increase the slip resistance, without the liquid removal being hindered thereby.
  • a molded-on central web 20 is missing, the longitudinal edges 12 pass over here in an angular profile 45 with a wall thickness q of 2.3 mm starting from the tread plate 11.
  • the light metal profile 10, 10 a , 10 b can easily be produced by extrusion.
  • transverse cuts are made by means of a saw or the like, which allow the described gap-like spaces 36 to be formed.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Electromagnetism (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Laminated Bodies (AREA)
  • Escalators And Moving Walkways (AREA)
  • Superstructure Of Vehicle (AREA)
  • Body Structure For Vehicles (AREA)
  • Tyre Moulding (AREA)

Abstract

A running-board of metal, especially a light-metal plank, with longitudinal ribs formed on it and with recesses provided in it and passing through the plank, is intended to be designed in such a way that simplification of production is possible. For this, the longitudinal rib (30, 30a) extends above a longitudinal groove (32) made in the underside of the tread surface (10, 11) and is so subdivided by indentations or such like interspaces (36) that the respective longitudinal groove forms the recess (32m) in the interspaces. At the same time, the length (s) of the interspaces (26), measured in the direction of the longitudinal rib (30, 30a), are intended to be shorter by at least half than the length (i) in the same direction of the remaining portions (39) of the longitudinal ribs, and moreover there can be provided a wave-shaped cross-section, in which the wave crests are formed by the longitudinal ribs (30, 30a) and the profile of the wave troughs (31) corresponds approximately to that of the longitudinal grooves (32). <IMAGE>

Description

Die Erfindung betrifft eine begehbare Trittfläche aus Metall, insbesondere eine Leichtmetallplanke, mit an sie angeformten Längsrippen und in ihr vorgesehenen, die Planke durchsetzenden Ausnehmungen. Zudem erfaßt die Erfindung ein Verfahren zu ihrer Herstellung durch Strangpressen von Leichtmetall.The invention relates to a walkable tread made of metal, in particular a light metal plank, with longitudinal ribs molded onto it and recesses provided in it and penetrating the plank. The invention also relates to a method for its production by extrusion of light metal.

Eine derartige Trittfläche ist der US-PS 2 742 121 zu entnehmen, deren durchgehende Längsrippen Reihen von Ausnehmungen flankieren; diese Ausnehmungen weisen Paare nach oben gereichteter Rippenränder auf.Such a step surface can be found in US Pat. No. 2,742,121, the continuous longitudinal ribs of which flank rows of recesses; these recesses have pairs of rib edges pointing upwards.

Die beschriebene Zuordnung von Längsrippen einerseits und Ausformungen andererseits läßt eine einfache Fertigung der vorbekannten Trittfläche nicht zu; dem Strangpreßvorgang muß ein Stanzprozeß folgen, der vor allem bereits bei geringfügigen Änderungen des Profilquerschnitts neue Werkzeuge bedingt und zudem untergriffene Abschnitte unbehandelt lassen muß.The described assignment of longitudinal ribs on the one hand and formations on the other hand does not allow simple manufacture of the previously known tread surface; the extrusion process must be followed by a stamping process, which requires new tools, especially when there are slight changes in the profile cross-section, and must also leave underneath-treated sections untreated.

Angesichts dieser Gegebenheiten hat sich der Erfinder das Ziel gesetzt, hier eine Vereinfachung der Herstellung zu schaffen.In view of these circumstances, the inventor has set himself the goal of simplifying production here.

Zur Lösung dieser Aufgabe führt, daß die Längsrippe oberhalb einer in die Unterseite der Trittfläche eingeformten Längsnut verläuft und durch Einschnitte od. dgl. Zwischenräume so unterteilt ist, daß die jeweilige Längsnut in den Zwischenräumen die Ausnehmungen bildet.To achieve this object, the longitudinal rib runs above a longitudinal groove formed in the underside of the tread surface and is subdivided by incisions or the like. Gaps such that the respective longitudinal groove forms the recesses in the gaps.

Nach einem weiteren Merkmal der Erfindung ist die in Richtung der Längsgrippe gemessene Länge der Zwischenräume zumindest um die Hälfte kürzer als die gleichgerichtete Länge der nach dem Herstellen der Zwischenräume verbliebenen Abschnitte der Längsrippe.According to a further feature of the invention, the length of the intermediate spaces measured in the direction of the longitudinal flu is at least half shorter than the rectified length of the sections of the longitudinal rib remaining after the intermediate spaces have been produced.

Dank dieser Maßgaben ergibt sich eine in einfacher Weise herstellbare und darüber hinaus stabile Trittfläche, welche sich auch dazu eignet, auf dem Wege des Strangpressens hergestellt zu werden; durch einen einfachen Sägevorgang nach dem Strangpressen werden jene Zwischenräume erzeugt und damit auch die Ausnehmungen. Der bisherige Zwang, Ausnehmungen durch einen Stanzvorgang herzustellen, entfällt.Thanks to these provisions, a step surface that can be produced in a simple manner and is also stable results, which is also suitable for being produced by extrusion; by means of a simple sawing process after the extrusion, those spaces are created, and with it the recesses. The previous requirement to produce recesses by means of a punching process has been eliminated.

Erfindungsgemäß weist die Trittfläche einen wellenförmigen Querschnitt auf, in den die Wellenberge von den Längsrippen gebildet sind und das Profil der Wellentäler jenem der Längsnuten etwa entspricht. Dies führt beispielsweise bei Längsnuten rechteckigen Querschnittes zu Wellentälern gleicher Form und damit zu streifenförmigen Längsrippen.According to the invention, the tread has a wave-shaped cross section, in which the wave crests are formed by the longitudinal ribs and the profile of the wave troughs corresponds approximately to that of the longitudinal grooves. In the case of longitudinal grooves of rectangular cross section, for example, this leads to troughs of the same shape and thus to strip-shaped longitudinal ribs.

Nach einer anderen bevorzugten Ausführungsform gleichen die Querschnitte der Wellentäler und Wellenberge jenen von Kegelstümpfen, was zu leicht geneigten Flanken der Längsrippen führt.According to another preferred embodiment, the cross sections of the wave troughs and wave crests are the same as those of truncated cones, which leads to slightly inclined flanks of the longitudinal ribs.

Als besonders günstig hat es sich erwiesen, die Längsnuten hinterschnitten auszubilden; sie können dann als Einsatznuten für - die Trittsicherheit erhöhende - Gummiprofile od. dgl. dienen.It has proven to be particularly favorable to undercut the longitudinal grooves; they can then serve as insert grooves for rubber profiles or the like which increase the surefootedness.

Die begehbaren Trittflächen eignen sich insbesondere zur Verwendung im Fahrzeug- und Hochbau, beispielsweise als Cockpit und Passagiertreppen für Flugzeuge, Stege von Tankfahrzeugen, Freitreppen bzw. -stege von Hochbauten und Fussgängerüberführungen.The walkable treads are particularly suitable for use in vehicle and building construction, for example as a cockpit and passenger stairs for airplanes, footbridges for tankers, outdoor stairs or footbridges for buildings and pedestrian overpasses.

Weitere Vorteile, Merkmale und Einzelheiten der Erfindung ergeben sich aus der nachfolgenden Beschreibung zweier bevorzugter Ausführungsbeispiele, welche in der Zeichnung dargestellt sind; letztere zeigt in

  • Fig. 1: einen Querschnitt durch eine Treppenstufe aus einem Leichtmetallprofil;
  • Fig. 2: eine Teildraufsicht auf Fig. 1;
  • Fig. 3: eine Teildraufsicht auf ein anderes Leichtmetallprofil;
  • Fig. 4: einen vergrößerten Schnitt durch Fig. 3 nach deren Linie IV-IV;
  • Fig. 5: einen Querschnitt durch eine weitere Ausführungsform einer Treppenstufe, geschnitten nach Linie V-V in Fig. 6;
  • Fig. 6: eine Draufsicht auf Fig. 5.
Further advantages, features and details of the invention result from the following description of two preferred exemplary embodiments, which are shown in the drawing; the latter shows in
  • 1: a cross section through a stair step made of a light metal profile;
  • Fig. 2 is a partial plan view of Fig. 1;
  • 3: a partial top view of another light metal profile;
  • 4 shows an enlarged section through FIG. 3 along the line IV-IV;
  • 5 shows a cross section through a further embodiment of a step, cut along line VV in FIG. 6;
  • 6: a top view of FIG. 5.

Eine aus einem stranggepreßten Leichtmetallprofil hergestellt Treppenstufe 10 weist gemäß Fig. 1 eine Trittplatte 11 auf, an deren Längskanten 12 jeweils eine Rinnenprofil 13 angeformt ist; der freie Schenkel 14 des Rinnenprofils 13 ist von der Trittplatte 11 bzw. einer Parallelen Q1 dazu in einem spitzen Winkel w weggeneigt und endet in einer Anformung 15. Letztere bietet eine hinterschnittene Rundnut 16 an. Die Öffnungen 17 der Rundnuten 16 beider Rinnenprofile 13 werden von - in einem gemeinsamen Winkel t abgeschrägten - Profilkanten 18 begrenzt und öffnen sich zueinander. Der Abstand a der inneren Anformungswand 19 von einer Mittelachse M der Treppenstufe 10 entspricht etwa der doppelten Länge b des Schenkels 14.A stair step 10 made from an extruded light metal profile has, according to FIG. 1, a step plate 11, on the longitudinal edges 12 of which a channel profile 13 is formed; the free leg 14 of the channel profile 13 is inclined away from the tread plate 11 or a parallel Q 1 at an acute angle w and ends in a molding 15. The latter offers an undercut circular groove 16. The openings 17 of the round grooves 16 of both channel profiles 13 are delimited by profile edges 18 - bevelled at a common angle t - and open towards one another. The distance a of the inner molding wall 19 from a central axis M of the step 10 corresponds approximately to twice the length b of the leg 14.

In jener Mittelachse M verläuft ein angeformter Mittelsteg 20, der in einer Rinnenanformung2' endet; diese ist mit einer abwärts gerichteten hinterschnittenen Nut 22 ausgestattet, deren Mittelpunkt Z1 auf einer Parallelen Q zur Trittplatte 11 liegt zusammen mit den Mittelpunkten Z der anderen beiden Rundnuten 16.In that central axis M runs a molded-on central web 20 which ends in a groove formation 2 '; this is equipped with a downward undercut groove 22, the center point Z 1 of which lies on a parallel line Q to the tread plate 11 together with the center points Z of the other two round grooves 16.

Auch die Öffnung 23 der mittleren Nut 22 wird von Schrägkanten 24 begrenzt, die einen Winkel t, bestimmen. Die Schrägkanten 24 sind im übrigen Teil angeformter Querfüße 25- die Rinnenanformung 21 bietet den Querschnitt eines Omega an.The opening 23 of the central groove 22 is also delimited by inclined edges 24 which determine an angle t. The inclined edges 24 are in the rest of the molded cross feet 25 - the groove 21 offers the cross section of an Omega.

Im übrigen verläuft jeweils am Nutgrund der Nuten 16, 22 eine hinterschnittene Kammeinformung 26, die der jeweiligen Öffnung 17 bzw. 22 gegenüberliegt. Diese Nuten 16, 22 erlauben eine einfache Festlegung der Treppenstufe 10 an einem Sockelgerüst.For the rest, an undercut comb indentation 26 runs at the bottom of the grooves 16, 22 and lies opposite the respective opening 17 and 22, respectively. These grooves 16, 22 allow the stair step 10 to be simply fixed to a base frame.

Die Treppenplatte 11 ist querschnittlich gewellt und zwar in einem Abstand e zwischen den Mittelachsen A benachbarter Wellenberge 30 und Wellentäler 31; die Anzahl der Wellenberge 30 einer Plattenhälfte des in Fig. 1, 2 dargestellten Ausführungsbeispiels beträgt zehn.The stair plate 11 is corrugated in cross-section, namely at a distance e between the central axes A of adjacent wave crests 30 and wave troughs 31; the number of wave crests 30 of a plate half of the embodiment shown in FIGS. 1, 2 is ten.

Die Wellenberge 30 und Wellentäler 31 bieten jeweils rechtwinkelige Querschnitte an, wie dies insbesondere Fig. 1 verdautlicht. Unterhalb jedes eine Längsrippe erzeugenden Wellenberges 30 verläuft eine Längsnut 32, die - jene Wellentäler 31 anbietenden - Formnuten 33 in der Plattenoberfläche 35 entspricht. Es entsteht somit ein beidseits zinnenartiges Profil.The wave crests 30 and wave troughs 31 each offer rectangular cross sections, as digested in particular by FIG. 1. Beneath each wave crest 30 producing a longitudinal rib there is a longitudinal groove 32 which - those troughs 31 offering - shape grooves 33 in the plate surface 35 corresponds. This creates a crenellated profile on both sides.

Die Draufsicht der Fig. 2 verdeutlicht, daß diemit Sägezahnprofile bildenden Längsstegen 40 versehenen - Längsrippen 30 in Längsabstand i (etwa 3 x e) unterbrochen sind; in dem so entstehenden Zwischenraum 36 der Breite s zwischen zwei stehen gebliebenen Abschnitten 39 rechteckiger Draufsicht sind die unteren Längsnuten 32 als Ausnehmungen 32m zu erkennen, die für einen ausreichenden Wasserablauf sorgen können; die aus den Längsrippen 30 entstandenen Abschnitte 39 mit ihren Längsstegen 40 und Querkanten 41 bilden eine rutschsichere Trittfläche.The top view of FIG. 2 shows that the longitudinal ribs 40, which are provided with sawtooth profiles, are interrupted at longitudinal spacing i (approximately 3 × e); In the space 36 of width s thus created between two sections 39 of rectangular top view that have remained standing, the lower longitudinal grooves 32 can be seen as recesses 32 m , which can ensure sufficient water drainage; the sections 39 formed from the longitudinal ribs 30 with their longitudinal webs 40 and transverse edges 41 form a non-slip tread.

Eine entsprechende Trittfläche ist im Ausführungsbeispiel der Fig. 3, 4 zu erkennen. Die Abschnitte 39 sind an ihrer Oberfläche mit querschnittlich zinnenartigen Längsanformungen 40m versehen, von denen die beiden äußeren das von ihnen flankierte Wellental 31 teilweise übergreifen und gemäß Fig. 4 Randnasen 34 bilden. In die so entstehende hinterschnittene Einsatznut31e ist ein Gummiprofil 50 eingelegt, dessen Oberfläche 51 die Rutschsicherheit zu erhöhen vermag, ohne daß dadurch die Flüssigkeitsabfuhr behindert würde.A corresponding step surface can be seen in the embodiment of FIGS. 3, 4. The sections 39 are provided on their surface with cross-section crenellated longitudinal projections 40 m , of which the two outer parts overlap the trough 31 flanked by them and form edge tabs 34 according to FIG. 4. In the resulting undercut insert groove 31e, a rubber profile 50 is inserted, the surface 51 of which can increase the slip resistance, without the liquid removal being hindered thereby.

Bei der Ausführung 10b nach Fig. 5 ähneln die Wellenberge 30a querschnittlich dem Querschnitt eines Kegelstumpfes und sind ebenfalls mit oberen Längsstegen 40 ausgestattet; hier entsprechen den Längsstegen 40 an den gegenüberliegenden Unterseiten Längseinformungen 42.In the embodiment of Figure 10 b 5 30 similar to the wave crests a cross-section to the cross section of a truncated cone and are also provided with upper longitudinal ridges 40. here the longitudinal webs 40 on the opposite undersides correspond to longitudinal indentations 42.

In diesem Ausführungsbeispiel fehlt ein angeformter Mittelsteg 20, die Längskanten 12 gehen hier über in rechtwinklig von der Trittplatte 11 ausgehende Winkelprofile 45 einer Wandstärke q von 2,3 mm.In this exemplary embodiment, a molded-on central web 20 is missing, the longitudinal edges 12 pass over here in an angular profile 45 with a wall thickness q of 2.3 mm starting from the tread plate 11.

Die Gesamtlänge n des Profiles 10b nach Fig. 5 beträgt 250 mm, die Höhe h 40 mm und die Höhe hi der Längsstege 40 2 mm. Der Oberflächenabstandf zwischen zwei benachbarten Wellenbergen bemißt im vorliegenden Ausführungsbeispiel 17 mm, die Spaltbreite s zwischen den Abschnitten 39a 8 mm. Der Mittelabstand m zwischen benachbarten Zwischenräumen 36 ist hier mit 24 mm angenommen.5 is 250 mm, the height h 40 mm and the height h i of the longitudinal webs 40 2 mm. The Oberflächenabstandf between two adjacent wave crests is measured mm in the present embodiment 17, the gap width s mm between the portions 39 a. 8 The center distance m between adjacent spaces 36 is assumed to be 24 mm here.

Zu allen Ausführungsbeispielen kann das Leichtmetallprofil 10, 10a, 10b ohne weiteres auf dem Wege des Strangpressens hergestellt werden. In die dabei als durchgehende Ausformungen entstehenden Längsrippen 30 werden mittels einer Säge od. dgl. querverlaufende Einschnitte eingebracht, welche die beschriebenen spaltartigen Zwischenräume 36 entstehen lassen.For all of the exemplary embodiments, the light metal profile 10, 10 a , 10 b can easily be produced by extrusion. In the longitudinal ribs 30 which are formed as continuous formations, transverse cuts are made by means of a saw or the like, which allow the described gap-like spaces 36 to be formed.

Claims (10)

1. Tread surface made of metal, in particular light metal plank having longitudinal ribs moulded onto it and recesses which are provided in it and penetrate the plank, characterized in that the longitudinal rib (30, 30a) extends above a longitudinal groove (32) moulded into the underside of the tread surface (10, 11) and is subdivided by incisions or similar interspaces (36) in such a way that the respective longitudinal groove forms the recesses (32m) in the interspaces.
2. Tread surface according to Claim 1, characterized in that the length (s) of the interspaces (36) measured in the direction of the longitudinal rib (30, 30m) is shorter by at least half than the corresponding length (i) of the remaining sections (39) of the longitudinal ribs.
3. Tread surface according to Claim 1 or 2, characterized in that by an undulating cross- section, in which the wave crests are formed by the longitudinal ribs (30, 30a) and the profile of the wave troughts (31) corresponds approximately to that of the longitudinal grooves (32).
4. Tread surface according to one of Claims 1 to 3, characterized in that two adjacent longitudinal ribs (30) are provided with at least one edge protrusion (34) on the longitudinal sides facing each other in each case and thus bound an undercut insertion groove (31e).
5. Tread surface according to Claim 4 having longitudinal webs rising from the longitudinal rib, characterized in that the edge protrusion (34) of the longitudinal rib (30) is part of a longitudinal web (40m).
6. Tread surface according to Claim 4 or 5, characterized in that at least one elastic profile (50) is inserted into the insertion groove (31e).
7. Tread surface according to Claim 6, characterized in that the elastic profile (50) is a hollow profile.
8. Tread surface according to at least one of Claims 1 to 7 having longitudinal webs of a toothed profile projecting away from the longitudinal rib, characterized in that longitudinal mouldings (41) correspond on their underside to the longitudinal webs (40) on the sections (39).
9. Tread surface according to one of Claims 1 to 8 having limbs moulded onto the underside, characterized by channel profiles starting from the cross-sectional ends and having free profile limbs (14) pointing towards one another, which have at least one receiving groove (16) for connection elements.
10. Method for the manufactured of a tread surface made of light metal according to at least one of Claims 1 to 9, characterized in that it is shaped with continuous longitudinal ribs by way of extrusion and is subsequently provided with incisions extending transversely to the direction of extrusion.
EP86810231A 1985-06-08 1986-05-29 Running-board, particularly light metal plank, and method of manufacture Expired - Lifetime EP0206986B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86810231T ATE59077T1 (en) 1985-06-08 1986-05-29 WALK-IN TREADING SURFACE, IN PARTICULAR LIGHT METAL PLANK, AS WELL AS THE PROCESS FOR THEIR MANUFACTURE.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3520576 1985-06-08
DE3520576A DE3520576C1 (en) 1985-06-08 1985-06-08 Accessible step surface, in particular light metal plank, and process for its manufacture

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EP0206986A2 EP0206986A2 (en) 1986-12-30
EP0206986A3 EP0206986A3 (en) 1989-05-03
EP0206986B1 true EP0206986B1 (en) 1990-12-12

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AT (1) ATE59077T1 (en)
DE (2) DE3520576C1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19741318C1 (en) * 1997-08-04 1999-01-28 Alusuisse Lonza Services Ag Walkway surface of light metal extruded sections

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Publication number Priority date Publication date Assignee Title
IT8985633A0 (en) * 1989-08-04 1989-08-04 Remigio Signori SHELVING IN METAL TUBE EQUIPPED WITH SCREW LOCKING BLOCKS, WHICH CAN BE POSITIONED AS YOU WISH, AND WITH SNAP-ON SHELVES.
FR2976614B1 (en) * 2011-06-14 2018-02-23 Alstep CONSTRUCTION ELEMENT FOR REALIZING A INSTALLATION SURFACE OF A HEIGHT ACCESS DEVICE
CN103835492A (en) * 2012-11-20 2014-06-04 合肥杰事杰新材料股份有限公司 Moving ramp
CN110439608A (en) * 2019-07-29 2019-11-12 北玻院(滕州)复合材料有限公司 Platform pedal and its Preparation equipment, subway tunnel evacuation platform and preparation method

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2742121A (en) * 1952-03-31 1956-04-17 Jr Ernest C Liskey Metallic grating
US3884328A (en) * 1973-10-01 1975-05-20 Chester I Williams Scaffold plank

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19741318C1 (en) * 1997-08-04 1999-01-28 Alusuisse Lonza Services Ag Walkway surface of light metal extruded sections

Also Published As

Publication number Publication date
ATE59077T1 (en) 1990-12-15
DE3676123D1 (en) 1991-01-24
DE3520576C1 (en) 1986-07-31
EP0206986A2 (en) 1986-12-30
EP0206986A3 (en) 1989-05-03

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