EP0359054A1 - Ladder composed of stiles linked to rungs - Google Patents

Ladder composed of stiles linked to rungs Download PDF

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Publication number
EP0359054A1
EP0359054A1 EP89116135A EP89116135A EP0359054A1 EP 0359054 A1 EP0359054 A1 EP 0359054A1 EP 89116135 A EP89116135 A EP 89116135A EP 89116135 A EP89116135 A EP 89116135A EP 0359054 A1 EP0359054 A1 EP 0359054A1
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EP
European Patent Office
Prior art keywords
rung
ladder
rungs
spars
insert
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.)
Granted
Application number
EP89116135A
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German (de)
French (fr)
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EP0359054B1 (en
Inventor
Kurt Schlatter
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AKES AG
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AKES AG
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Priority to AT89116135T priority Critical patent/ATE88541T1/en
Publication of EP0359054A1 publication Critical patent/EP0359054A1/en
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Publication of EP0359054B1 publication Critical patent/EP0359054B1/en
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    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C7/00—Component parts, supporting parts, or accessories
    • E06C7/08—Special construction of longitudinal members, or rungs or other treads
    • E06C7/082—Connections between rungs or treads and longitudinal members
    • E06C7/087—Connections between rungs or treads and longitudinal members with a connecting piece installed around the rung
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F23/00—Advertising on or in specific articles, e.g. ashtrays, letter-boxes
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F23/00—Advertising on or in specific articles, e.g. ashtrays, letter-boxes
    • G09F2023/0016—Advertising on or in specific articles, e.g. ashtrays, letter-boxes on pens
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F23/00—Advertising on or in specific articles, e.g. ashtrays, letter-boxes
    • G09F2023/0025—Advertising on or in specific articles, e.g. ashtrays, letter-boxes on containers

Definitions

  • the invention relates to a ladder with two spars and rungs used in them, the spars being designed as hollow supports and the ends of the rungs being inserted into the spars with openings in them and being held there in a form-fitting manner.
  • a ladder is known, the rungs of which are fastened in the spars in such a way that they can no longer be removed therefrom (CH-PS 629 568).
  • each end of a rung is supported in an insert made of elastic material, which is anchored in the interior of the spar and has further anchoring cams which engage in bores in depressions arranged in the ends of the rungs.
  • the ends are inserted with slight deformation of the insert and are then no longer detachable.
  • the end of the rung can only be released from the insert inserted in the stiles by destroying the stile.
  • At least one rung of the ladder is made of a transparent plastic, the ends of which are inserted non-detachably in the two spars. Because the rung is made of a transparent material, the marking can be moved into the rung, from which it can then only be removed by destroying the rung.
  • the rung is expediently designed as a hollow body, the rung being designed as a polygonal, for example square, hollow body as a preferred embodiment.
  • the hollow body shape of the rung makes it possible to insert a marking, for example a name or a color picture, in the cavity of the rung, which can then no longer be removed without destroying the ladder.
  • the walls of the hollow body are expediently made transparent, with a reinforcement, for example a glass fiber strand, being embedded in the corners of the polygon shape.
  • the ladder shown in FIG. 1 has two bars 1, which are connected to one another by rungs 2.
  • the length of the ladder or the possibility of folding the ladder into a fixed ladder can be realized in any way.
  • At least one rung 22 is made of a transparent plastic.
  • a transparent polyvinyl chloride (PVC) can be used, which has a high hardness and a high toughness.
  • FIG. 2 and 3 show the details of the design of the rung 22 and its connection to the spar 1, FIG. 2 showing the connection of one end 21 of the rung 22 to the spar 1, while in FIG. 3 the design of the rung 22 is shown in detail.
  • the insert body 5 has a cylindrical body 6, which corresponds to the square cross-sectional shape of the rung 22 is a square cylinder.
  • a flange 7 adjoins one end of the cylindrical body 6, while the cylindrical body 6 is closed off by a base 8 at the other end.
  • the bottom 8 has an outwardly protruding pin 9 with a thickening 10 which extends through a bore 30 in the wall 25 of the spar 1.
  • the base 8 is held in the bore 30 in a form-fitting manner by the thickening 10.
  • the spar 1 is designed as a rectangular hollow body whose wall opposite the wall 25 has a corresponding square opening 26 for receiving the insert 5.
  • the walls 12 of the cylindrical body 6 have slot parts 13, from which ribs 14 protrude. If the insert 5 with the end 21 of the rung 22 is inserted through the opening 26 in the wall 11 of the spar 1, the ribs 14 protrude so that the insert 5 can no longer be removed from the opening 26. Together with the thickening 10, the ribs 14 form a no longer detachable mounting of the insert 5 in the spar 1.
  • a pin 16 is integrally formed on at least two side walls 11 of the cylindrical body 6 and engages in a bore 19 in the wall of the rung 22 when the end 21 is inserted into the insert.
  • the rung 22, see FIG. 3, is a square body, the walls 27 of which are transparent. So that there is no risk of slipping, the outside of a wall 27 can be provided with grooves 28. However, these grooves do not affect the transparency of the wall 27.
  • Fig. 3 From Fig. 3 it can be seen that 22 reinforcements 23 are embedded in the corners of the rung.
  • This reinforcement can consist of glass fibers, for example, which extend over the length of the rung.
  • the rung 22 is given additional strength so that it can support large weights without problems and can be derived from the bars 1.
  • the interior 29 of the rung 22 can now be used to insert a label which, because of the described anchoring between rung 22 and spar 1, is not accessible without destroying a part.
  • an insert sheet 24 can be inserted into the interior 29, which is marked with a label, e.g. with a font, a coloring or the like. is provided.
  • the insert sheet 24 is inserted into the interior 29 of the rung 22 and, since the rung walls 27 are transparent, is clearly visible. In this case, it is expedient to design the insert sheet 24 in such a way that it can be snugly inserted into the interior 29 so that it can no longer move.
  • the transparent rung 22 also has the same strength as the other rungs 2, which consist, for example, of a solid artificial rod.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Ladders (AREA)

Abstract

The ladder consists of two stiles (1) which are connected to each other by rungs (2) and at least one rung (22). The rung (22) is constructed as a transparent hollow body, an insertion piece (5) being pushed onto its end (21). Together with the insertion piece (5) the end (21) of the rung (22) is inserted into an opening (26) in the stile (1). Provided on the insertion piece are ribs (14) and a thickening (10) of a pin (9), by means of which parts the insertion piece (5) is held positively in the stile (1). Arranged on the inside of the insertion piece (5) are pins (16) which, when the insertion piece is pushed onto the end (21) of the rung (22), engage in bore holes (19) in the end (21). By this means, the rung (22) is also held together positively with the stile (1). An insertion sheet (24) with a marking is placed in the hollow space of the rung (22) and the ladder is then assembled so that removal of the marking on the insertion sheet (24) can only be achieved by destruction of a part of the ladder. <IMAGE>

Description

Die Erfindung betrifft eine Leiter mit zwei Holmen und in diesen eingesetzten Sprossen, wobei die Holmen als Hohlträger ausgebildet sind und die Sprossen mit ihren Enden in Oeffnugnen in den Holmen eingesteckt und dort formschlüssig gehalten sind.The invention relates to a ladder with two spars and rungs used in them, the spars being designed as hollow supports and the ends of the rungs being inserted into the spars with openings in them and being held there in a form-fitting manner.

Bekannte Leitern, deren Holme und Sprossen aus Kunststoff hergestellt sind, weisen verschiedene Formen auf (CH-PS 606 760). Der Vorteil dieser Leitung besteht darin, dass sie weitgehend witterungsfest und auch einer Korrosion praktisch nicht unterworfen sind. Die Lagerung solcher Leitern ist deshalb problemlos, da zudem Ihr Gewicht gegenüber Leitern aus Holz verhältnismässig klein ist. Andererseits hat die leichte Transportmöglichkeit einer solchen Leiter zur Folge, dass sie überall mitgenommen werden kann, auch von nicht dazu berechtigten Personen. Es ist deshalb bekannt, Leitern aus Holz mit gut sichtbaren Farben, Initialen und Namen zu versehen. Solche Anstriche oder Bemalungen können verhältnismässig leicht entfernt werden, so dass ihr Besitzer nachher kaum mehr feststellbar ist.Known ladders, whose spars and rungs are made of plastic, have different shapes (CH-PS 606 760). The advantage of this cable is that it is largely weatherproof and practically not subject to corrosion. The storage of such ladders is therefore easy since their weight is also relatively small compared to wooden ladders. On the other hand, the easy transportation of such a ladder means that it can be taken anywhere, even by unauthorized persons. It is therefore known to provide wooden ladders with clearly visible colors, initials and names. Such paintings or paintings can be removed relatively easily, so that their owner can hardly be identified afterwards.

Es hat deshalb nicht an Anstrengungen gefehlt, hier Abhilfe zu schaffen.There has been no shortage of efforts to remedy this.

Es ist eine Leiter bekannt, deren Sprossen derart in den Holmen befestigt sind, die nicht mehr daraus entfernt werden können (CH-PS 629 568). Bei dieser Leiter ist jedes Ende einer Sprosse in einem Einsatzstück aus elastischem Material gelagert, das im Innern des Holms verankert ist und weitere Verankerungsnocken aufweist, die in Bohrungen von in den Enden der Sprossen angeordneten Vertiefungen einrasten. Die Enden werden hierbei unter leichter Verformung des Einsatzstückes eingesetzt und sind dann nicht mehr lösbar. Ein Lösen des Sprossenendes aus dem in den Holmen eingesetzten Einsatzstück ist nur unter Zerstörung des Holms möglich.A ladder is known, the rungs of which are fastened in the spars in such a way that they can no longer be removed therefrom (CH-PS 629 568). With this ladder, each end of a rung is supported in an insert made of elastic material, which is anchored in the interior of the spar and has further anchoring cams which engage in bores in depressions arranged in the ends of the rungs. The ends are inserted with slight deformation of the insert and are then no longer detachable. The end of the rung can only be released from the insert inserted in the stiles by destroying the stile.

Hier setzt die Erfindung ein, der die Aufgabe zugrundeliegt, eine Leiter der eingangs beschriebenen Art so zu kennzeichnen, dass die Kennzeichnung einerseits gut sichtbar ist und andererseits nicht ohne Zerstörung der Leiter entfernt werden kann.This is where the invention comes in, which is based on the object of identifying a ladder of the type described in the introduction in such a way that the marking is clearly visible on the one hand and on the other hand cannot be removed without destroying the ladder.

Diese Aufgabe wird gemäss der Erfindung dadurch gelöst, dass mindestens eine Sprosse der Leiter aus einem durchsichtigen Kunststoff hergestellt ist, deren Enden nichtlösbar in den beiden Holmen eingesetzt sind. Dadurch dass die Sprosse aus einem durchsichtigen Material hergestellt wird, kann die Kennzeichnung in die Sprosse verlegt werden, aus welcher sie dann nur noch durch Zerstörung der Sprosse entfernt werden kann.This object is achieved according to the invention in that at least one rung of the ladder is made of a transparent plastic, the ends of which are inserted non-detachably in the two spars. Because the rung is made of a transparent material, the marking can be moved into the rung, from which it can then only be removed by destroying the rung.

Zu diesem Zweck wird zweckmässig die Sprosse als Hohlkörper ausgebildet, wobei als bevorzugte Ausführungsform die Sprosse als polygonförmiger, beispielseise quadratförmiger Hohlkörper ausgebildet ist. Die Hohlkörperform der Sprosse ermöglicht es, im Hohlraum der Sprosse eine Kennzeichnung, z.B. einen Namen oder ein Farbbild, einzulegen, welches dann nicht mehr ohne Zerstörung der Leiter entfernt werden kann. Damit der Sprosse die notwendige Festigkeit erteilt werden kann, werden zweckmässig die Wände des Hohlkörpers durchsichtig ausgebildet, wobei in den Ecken der Polygonform eine Armierung z.B. ein Glasfaserstrang eingebettet ist.For this purpose, the rung is expediently designed as a hollow body, the rung being designed as a polygonal, for example square, hollow body as a preferred embodiment. The hollow body shape of the rung makes it possible to insert a marking, for example a name or a color picture, in the cavity of the rung, which can then no longer be removed without destroying the ladder. So that the rung can be given the necessary strength, the walls of the hollow body are expediently made transparent, with a reinforcement, for example a glass fiber strand, being embedded in the corners of the polygon shape.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und nachfolgend beschrieben. Es zeigen:

  • Fig. 1 eine schematische Seitenansicht einer aus zwei Holmen bestehenden Leiter, die durch eine Anzahl Sprossen miteinander verbunden sind,
  • Fig. 2 einen schematisch dargestellten Schnitt eines Ausschnittes der Leiter, welcher in Fig. 1 durch einen Kreis bezeichnet ist in vergrösserter Darstellung, und
  • Fig. 3 einen schematisch dargestellten Schnitt der Sprosse nach Fig. 2, längs der Linie III - III in Fig. 2.
An embodiment of the invention is shown in the drawing and described below. Show it:
  • 1 is a schematic side view of a ladder consisting of two spars, which are connected by a number of rungs,
  • Fig. 2 is a schematically illustrated section of a section of the conductor, which is denoted by a circle in Fig. 1 in an enlarged view, and
  • 3 shows a schematically represented section of the rung according to FIG. 2, along the line III-III in FIG. 2.

Die in Fig. 1 dargestellte Leiter weist zwei Holmen 1 auf, die durch Sprossen 2 miteinander verbunden sind. Die Länge der Leiter oder die Möglichkeit der Leiter in eine Bockleiter umzuklappen, kann in beliebiger Weise verwirklicht werden.The ladder shown in FIG. 1 has two bars 1, which are connected to one another by rungs 2. The length of the ladder or the possibility of folding the ladder into a fixed ladder can be realized in any way.

Wesentlich bei der Leiter ist es, dass mindestens eine Sprosse 22 aus einem durchsichtigen Kunststoff hergestellt ist. Hierzu kann ein durchsichtiges Polyvinylchlorid (PVC) verwendet werden, das eine hohe Härte und eine hohe Zähigkeit aufweist.It is essential for the ladder that at least one rung 22 is made of a transparent plastic. For this purpose, a transparent polyvinyl chloride (PVC) can be used, which has a high hardness and a high toughness.

Aus Fig. 2 und 3 sind die Details der Ausbildung der Sprosse 22 und deren Verbindung mit dem Holm 1 dargestellt, wobei Fig. 2 die Verbindung eines Endes 21 der Sprosse 22 mit dem Holm 1 zeigt, während in Fig. 3 die Ausbildung der Sprosse 22 im Detail dargestellt ist.2 and 3 show the details of the design of the rung 22 and its connection to the spar 1, FIG. 2 showing the connection of one end 21 of the rung 22 to the spar 1, while in FIG. 3 the design of the rung 22 is shown in detail.

Am Ende 21 der Sprosse 22 ist ein Einsatzstück 5 aus elastischem Material aufgeschoben, das im wesentlichen becherförmig ausgebildet ist. Der Einsatzkörper 5 weist einen zylinderförmigen Körper 6 auf, welcher entsprechend der quadratischen Querschnittform der Sprosse 22 ein Vierkantzylinder ist. An dem einen Ende des zylinderförmigen Körpers 6 schliesst ein Flansch 7 an, während an dem andern Ende der zylinderförmige Körper 6 durch einen Boden 8 abgeschlossen ist. Der Boden 8 weist einen nach aussen abstehenden Zapfen 9 mit einer Verdickung 10 auf, die sich durch eine Bohrung 30 in der Wand 25 des Holms 1 erstreckt. Durch die Verdickung 10 wird der Boden 8 formschlüssig in der Bohrung 30 gehalten. Der Holm 1 ist als rechteckförmiger Hohlkörper ausgebildet, dessen der Wand 25 gegenüberliegende Wand eine entsprechende quadratische Oeffnung 26 zur Aufnahme des Einsatzstückes 5 aufweist. Die Wände 12 des zylinderförmigen Körpers 6 weisen Schlitzpartien 13 auf, von denen Rippen 14 abragen. Wird das Einsatzstück 5 mit dem Ende 21 der Sprosse 22 durch die Oeffnung 26 in der Wand 11 des Holmes 1 eingeführt, stehen die Rippen 14 vor, so dass das Einsatzstück 5 nicht mehr aus der Oeffnung 26 entfernt werden kann. Zusammen mit der Verdickung 10 bilden die Rippen 14 eine nicht mehr lösbare Halterung des Einsatzstückes 5 im Holm 1.At the end 21 of the rung 22, an insert 5 made of elastic material is pushed on, which is essentially cup-shaped. The insert body 5 has a cylindrical body 6, which corresponds to the square cross-sectional shape of the rung 22 is a square cylinder. A flange 7 adjoins one end of the cylindrical body 6, while the cylindrical body 6 is closed off by a base 8 at the other end. The bottom 8 has an outwardly protruding pin 9 with a thickening 10 which extends through a bore 30 in the wall 25 of the spar 1. The base 8 is held in the bore 30 in a form-fitting manner by the thickening 10. The spar 1 is designed as a rectangular hollow body whose wall opposite the wall 25 has a corresponding square opening 26 for receiving the insert 5. The walls 12 of the cylindrical body 6 have slot parts 13, from which ribs 14 protrude. If the insert 5 with the end 21 of the rung 22 is inserted through the opening 26 in the wall 11 of the spar 1, the ribs 14 protrude so that the insert 5 can no longer be removed from the opening 26. Together with the thickening 10, the ribs 14 form a no longer detachable mounting of the insert 5 in the spar 1.

Mit dieser Ausbildung des Einsatzstückes 5 wäre jedoch das Ende 21 der Sprosse 22 noch nicht gehalten. Damit auch das Ende 21 nicht mehr aus dem Einsatzstück entfernbar ist, ist mindesten bei zwei Seitenwänden 11 des zylinderförmigen Körpers 6 ein Zapfen 16 angeformt, der beim Einführen des Endes 21 in das Einsatzstück in eine Bohrung 19 in der Wand der Sprosse 22 einrastet.With this design of the insert 5, however, the end 21 of the rung 22 would not be held. So that the end 21 can no longer be removed from the insert, a pin 16 is integrally formed on at least two side walls 11 of the cylindrical body 6 and engages in a bore 19 in the wall of the rung 22 when the end 21 is inserted into the insert.

Durch die Verdickung 10 des Zapfens 9 und die Rippen 14 in den Seitenwänden 11 des zylinderförmigen Körpers 6 wird das Einsatzstück 5 nicht mehr lösbar im Holm 1 gehalten, während das Ende 21 und damit die Sprosse 22 durch die Zapfen 16 gehalten ist. Da alle Sprossen 2 und 22 auf diese Weise mit den Holmen 1 verbunden werden, entsteht eine Leiter, die nur noch durch Zerstörung eines Teils gelöst werden kann.Due to the thickening 10 of the pin 9 and the ribs 14 in the side walls 11 of the cylindrical body 6, the insert 5 is no longer detachably held in the spar 1, while the end 21 and thus the rung 22 is held by the pin 16. Since all rungs 2 and 22 are connected to the spars 1 in this way, a ladder is created which can only be released by destroying a part.

Die Sprosse 22 ist, siehe Fig. 3, ein quadratischer Körper, dessen Wände 27 durchsichtig sind. Damit keine Rutschgefahr besteht, kann die Aussenseite einer Wand 27 mit Rillen 28 versehen werden. Diese Rillen beeinträchtigen jedoch die Durchsichtigkeit der Wand 27 nicht.The rung 22, see FIG. 3, is a square body, the walls 27 of which are transparent. So that there is no risk of slipping, the outside of a wall 27 can be provided with grooves 28. However, these grooves do not affect the transparency of the wall 27.

Aus Fig. 3 ist ersichtlich, dass in den Ecken der Sprosse 22 Armierungen 23 eingebettet sind. Diese Armierung kann beispielsweise aus Glasfasern bestehen, die sich über die Länge der Sprosse erstrecken. Dadurch erhält die Sprosse 22 eine zusätzliche Festigkeit, so dass sie grosse Gewichte problemlos abstützen und auf die Holmen 1 ableiten kann.From Fig. 3 it can be seen that 22 reinforcements 23 are embedded in the corners of the rung. This reinforcement can consist of glass fibers, for example, which extend over the length of the rung. As a result, the rung 22 is given additional strength so that it can support large weights without problems and can be derived from the bars 1.

Der Innenraum 29 der Sprosse 22 kann nun dazu benützt werden, eine Kennzeichnung einzuschieben, die wegen der beschriebenen Verankerung zwischen Sprosse 22 und Holm 1 nicht ohne Zerstörung eines Teils zugänglich ist. Hierzu kann ein Einsatzblatt 24 in den Innenraum 29 eingeschoben werden, welches mit einer Kennzeichnung, z.B. mit einer Schrift, einer Färbung o.dgl. versehen ist. Das Einsatzblatt 24 wird in den Innenraum 29 der Sprosse 22 eingeschoben und ist, da ja die Sprossenwände 27 durchsichtig sind, gut erkennbar. Hierbei ist es zweckmässig, das Einsatzblatt 24 so auszuführen, dass es satt passend in den Inneraum 29 eingeschoben werden kann, so dass es sich nicht mehr verschieben kann.The interior 29 of the rung 22 can now be used to insert a label which, because of the described anchoring between rung 22 and spar 1, is not accessible without destroying a part. For this purpose, an insert sheet 24 can be inserted into the interior 29, which is marked with a label, e.g. with a font, a coloring or the like. is provided. The insert sheet 24 is inserted into the interior 29 of the rung 22 and, since the rung walls 27 are transparent, is clearly visible. In this case, it is expedient to design the insert sheet 24 in such a way that it can be snugly inserted into the interior 29 so that it can no longer move.

Nachdem das Einsatzblatt 24 an der gewünschten Stelle eingeschoben ist, wird die Leiter mit der Sprosse 22 fertig montiert.After insert sheet 24 is inserted at the desired location, the ladder with rung 22 is fully assembled.

Es ist möglich, die Kennzeichnung auf beiden Seiten des Einsatzblattes 24 anzubringen. Es ist jedoch auch möglich, zwei oder mehr durchsichtige Sprossen 22 in einer Leiter anzuordnen, so dass eine vielfache Kennzeichnung möglich ist. Besonders bei Leitern, die sowohl als gestreckte Leiter als auch als Bockleiter aufstellbar sind, ist es zweckmässig, nicht nur eine Sprosse als durchsichtige Sprosse 22 auszubilden. Dank der Armierung 23 weist auch die durchsichtige Sprosse 22 dieselbe Festigkeit auf wie die übrigen Sprossen 2, die beispielsweise aus einem massiven Kunststab bestehen.It is possible to affix the marking on both sides of the insert sheet 24. However, it is also possible to arrange two or more transparent rungs 22 in a ladder, so that multiple labeling is possible. Especially for ladders that can be set up both as straight and as fixed ladders are, it is expedient not only to form a rung as a transparent rung 22. Thanks to the reinforcement 23, the transparent rung 22 also has the same strength as the other rungs 2, which consist, for example, of a solid artificial rod.

Claims (6)

1. Leiter mit zwei Holmen (1) und in diesen eingesetzten Sprossen (2), wobei die Holmen als Hohlträger ausgebildet sind und die Sprossen mit ihren Enden in Oeffnungen (26) in den Holmen eingesteckt und dort formschlüssig gehalten sind, dadurch gekennzeichnet, dass mindestens eine Sprosse (22) der Leiter aus einem durchsichtigen Kunststoff hergestellt ist, deren Enden (21) nichtlösbar in den beiden Holmen (1) eingesetzt sind.1. ladder with two spars (1) and rungs (2) inserted in them, the spars being designed as hollow beams and the rungs being inserted with their ends into openings (26) in the spars and held there in a form-fitting manner, characterized in that at least one rung (22) of the ladder is made of a transparent plastic, the ends (21) of which are non-detachably inserted in the two spars (1). 2. Leiter nach Anspruch 1, dadurch gekennzeichnet, dass die Sprosse (22) als Hohlkörper ausgebildet ist.2. Ladder according to claim 1, characterized in that the rung (22) is designed as a hollow body. 3. Leiter nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Sprosse (22) als polygonförmiger, beispielsweise quadratförmiger Hohlkörper ausgebildet ist.3. Ladder according to claim 1 or 2, characterized in that the rung (22) is designed as a polygonal, for example square hollow body. 4. Leiter nach einem der Ansprüche 1 - 3, dadurch gekennzeichnet, dass die Wände des Hohlkörpers durchsichtig sind, wobei in den Ecken der Polygonform eine Armierung (23) z.B. aus Glasfasern, eingebettet ist.4. Ladder according to one of claims 1-3, characterized in that the walls of the hollow body are transparent, wherein in the corners of the polygonal shape a reinforcement (23) e.g. made of glass fibers, is embedded. 5. Leiter nach einem der Ansprüche 1 - 4, dadurch gekennzeichnet, dass die Sprosse (22) einen Innenraum (29) aufweist, in welchen ein Einsatzblatt (24), beispielsweise mit einer Kennzeichnung versehen, eingelegt ist.5. Ladder according to one of claims 1-4, characterized in that the rung (22) has an interior (29) in which an insert sheet (24), for example provided with a label, is inserted. 6. Leiter nach Anspruch 5, dadurch gekennzeichnet, dass das Einsatzblatt mit einer satten Passung in den Innenraum (29) der Sprosse (22) eingelegt ist.6. Ladder according to claim 5, characterized in that the insert sheet is inserted with a snug fit in the interior (29) of the rung (22).
EP89116135A 1988-09-02 1989-08-31 Ladder composed of stiles linked to rungs Expired - Lifetime EP0359054B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89116135T ATE88541T1 (en) 1988-09-02 1989-08-31 LADDER MADE OF RUNGED GUARDS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH3290/88 1988-09-02
CH3290/88A CH677691A5 (en) 1988-09-02 1988-09-02

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Publication Number Publication Date
EP0359054A1 true EP0359054A1 (en) 1990-03-21
EP0359054B1 EP0359054B1 (en) 1993-04-21

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EP89116135A Expired - Lifetime EP0359054B1 (en) 1988-09-02 1989-08-31 Ladder composed of stiles linked to rungs

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EP (1) EP0359054B1 (en)
AT (1) ATE88541T1 (en)
CH (1) CH677691A5 (en)
DE (1) DE58904137D1 (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5161783A (en) * 1991-10-04 1992-11-10 German Rex L Fence rail connection
FR2712349A1 (en) * 1993-11-11 1995-05-19 Avanti Stigefabrik Aps Connecting device for connecting the bars of a ladder to the uprights of a ladder.
US5427198A (en) * 1991-02-20 1995-06-27 Walsh; Michael P. Ladder and method of construction
BE1007706A5 (en) * 1993-02-01 1995-10-03 Ladderfabriek Martin Nv A rung-stile for ladders made of fibre-reinforced plastic
FR2762871A1 (en) * 1997-03-24 1998-11-06 Abarrategui Churruca Josu Electrically insulated, rigid ladder
EP1128020A1 (en) * 2000-02-24 2001-08-29 Genex S.r.l. Rung ladder in composite material
FR2817674A1 (en) * 2000-12-05 2002-06-07 Tolmega Fixing for rungs on longitudinal ladder members, comprises pairs of slots formed by stampings in longitudinal member side, slots supporting rung ears and stampings engaging rung holes
US6668975B2 (en) * 2002-01-30 2003-12-30 Center Ridge Outdoors, L.L.C. Modular ladder with removable rungs

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1206505B (en) * 1963-02-06 1965-12-09 Starkstrom Appbau G M B H Arrangement, method and device for signposting electrical devices, in particular switching devices
US3510977A (en) * 1968-02-20 1970-05-12 Radiant Pen Corp Rotatable display pen
CH606760A5 (en) * 1977-01-19 1978-11-15 Spo Ag Lightweight strengthened plastics ladder
CH629568A5 (en) * 1978-03-30 1982-04-30 Spo Ag Ladder

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1206505B (en) * 1963-02-06 1965-12-09 Starkstrom Appbau G M B H Arrangement, method and device for signposting electrical devices, in particular switching devices
US3510977A (en) * 1968-02-20 1970-05-12 Radiant Pen Corp Rotatable display pen
CH606760A5 (en) * 1977-01-19 1978-11-15 Spo Ag Lightweight strengthened plastics ladder
CH629568A5 (en) * 1978-03-30 1982-04-30 Spo Ag Ladder

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5427198A (en) * 1991-02-20 1995-06-27 Walsh; Michael P. Ladder and method of construction
US5161783A (en) * 1991-10-04 1992-11-10 German Rex L Fence rail connection
BE1007706A5 (en) * 1993-02-01 1995-10-03 Ladderfabriek Martin Nv A rung-stile for ladders made of fibre-reinforced plastic
FR2712349A1 (en) * 1993-11-11 1995-05-19 Avanti Stigefabrik Aps Connecting device for connecting the bars of a ladder to the uprights of a ladder.
FR2762871A1 (en) * 1997-03-24 1998-11-06 Abarrategui Churruca Josu Electrically insulated, rigid ladder
EP1128020A1 (en) * 2000-02-24 2001-08-29 Genex S.r.l. Rung ladder in composite material
FR2817674A1 (en) * 2000-12-05 2002-06-07 Tolmega Fixing for rungs on longitudinal ladder members, comprises pairs of slots formed by stampings in longitudinal member side, slots supporting rung ears and stampings engaging rung holes
US6668975B2 (en) * 2002-01-30 2003-12-30 Center Ridge Outdoors, L.L.C. Modular ladder with removable rungs

Also Published As

Publication number Publication date
ATE88541T1 (en) 1993-05-15
CH677691A5 (en) 1991-06-14
EP0359054B1 (en) 1993-04-21
DE58904137D1 (en) 1993-05-27

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