EP2194225B1 - Assembly of a ladder and two rollers - Google Patents

Assembly of a ladder and two rollers Download PDF

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Publication number
EP2194225B1
EP2194225B1 EP09175553.8A EP09175553A EP2194225B1 EP 2194225 B1 EP2194225 B1 EP 2194225B1 EP 09175553 A EP09175553 A EP 09175553A EP 2194225 B1 EP2194225 B1 EP 2194225B1
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EP
European Patent Office
Prior art keywords
rollers
ladder
wheel
arrangement according
screw
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.)
Not-in-force
Application number
EP09175553.8A
Other languages
German (de)
French (fr)
Other versions
EP2194225A2 (en
EP2194225A3 (en
Inventor
Gerd Markowski
Ulrich Ernst
Rudolf Pfeifer
Gerhard Müller
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hailo Werk Rudolf Loh GmbH and Co KG
Original Assignee
Hailo Werk Rudolf Loh GmbH and Co KG
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Publication of EP2194225A2 publication Critical patent/EP2194225A2/en
Publication of EP2194225A3 publication Critical patent/EP2194225A3/en
Application granted granted Critical
Publication of EP2194225B1 publication Critical patent/EP2194225B1/en
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Anticipated expiration legal-status Critical

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C1/00—Ladders in general
    • E06C1/02—Ladders in general with rigid longitudinal member or members
    • E06C1/38—Special constructions of ladders, e.g. ladders with more or less than two longitudinal members, ladders with movable rungs or other treads, longitudinally-foldable ladders
    • E06C1/397—Special constructions of ladders, e.g. ladders with more or less than two longitudinal members, ladders with movable rungs or other treads, longitudinally-foldable ladders characterised by having wheels, rollers, or runners
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C7/00—Component parts, supporting parts, or accessories
    • E06C7/42—Ladder feet; Supports therefor

Definitions

  • the present invention relates to an arrangement of a conductor and two rollers having the features of the preamble of claim 1.
  • the ladder if it is to be moved from one site to another site, can be driven on the wheels of the rollers.
  • the ladder is raised at the second end opposite the rollers, while the first end of the ladder is supported on the ground by the rollers.
  • the construction of the ladder disclosed in the utility model is designed so that the rollers are firmly connected to the ladder. A subsequent attachment of roles on the ladder is not possible, if necessary, when the cross bar is prepared for the attachment of the rollers. Furthermore, it is not readily possible to attach the rollers of the ladder to a second ladder.
  • a mobile ladder which consists of a frame with spars, columns, struts and steps. At the bottom of the columns rollers are mounted with a rigidly mounted fitting. On the other hand, the rollers attached to the lower end of the spars are mounted on a respective roller holder, which are pivotally mounted on the spars. The rollers are fixed, ie not detachably connected to the spars.
  • the invention has for its object to provide an arrangement of a ladder and rollers for the ladder, the rollers can be easily mounted on the ladder and disassembled from the ladder.
  • the rollers can be easily mounted on the ladder and disassembled from the ladder.
  • there are no special structures to be provided on the ladder which are necessary for the attachment of the rollers to the ladder.
  • the roles should be as possible designed so that they can be attached to ladders, without these are designed especially for it.
  • a role of an arrangement according to the invention comprises a wheel holder on which the wheel is rotatably mounted.
  • the roller has a fastening means, which is suitable and arranged for releasable attachment to the conductor and which has a spreading element which can be inserted into a recess of the conductor.
  • a fastening means which is suitable and arranged for releasable attachment to the conductor and which has a spreading element which can be inserted into a recess of the conductor.
  • the attachment means of a roller according to the invention comprises a screw, in particular a star screw or toggle screw. By tightening the screw, the spreader is spread. As a result, the expansion element is fixed in the recess of the ladder.
  • the wheel holder may comprise a rod or be formed by a rod.
  • the wheel and the screw may be disposed on a first side of the wheel holder.
  • a rotation axis of the wheel of a roller according to the invention and a plug-in direction of the expansion element are preferably parallel to one another.
  • the forces acting on the wheel during unwinding are thus perpendicular to the insertion direction.
  • the load on the wheel thus acts neither in the insertion nor in the anti-parallel extraction direction of the expansion element from the ladder.
  • the attachment means of a roller according to the invention may comprise a screw, in particular a star screw or toggle screw. By tightening the screw, the spreader can be spread. As a result, the expansion element is fixed in the recess of the ladder.
  • the wheel holder may comprise a rod or be formed by a rod.
  • the wheel and the screw can be arranged on a first side of the wheel holder and the spreading element can be arranged on a second side of the wheel holder.
  • the expansion element of a roll according to the invention can be substantially parallelepiped in the non-spread state.
  • the cross section of the expansion element is adapted to the shape of the recess in the ladder. It is therefore conceivable in particular a triangular or round cross-sectional shape.
  • the rollers are mounted in the region of a first end of the ladder.
  • the rollers are attached to spars of the ladder.
  • the rungs are inserted into through holes of the spars.
  • the sprouts are sleeve-like or pot-shaped at least at their ends and have at least one open recess at the end.
  • the rungs can be tubes, in particular square tubes or triangular tubes.
  • the spars may have blind holes or through-holes arranged transversely to their direction of extent.
  • the spreading elements of the rollers are inserted into the open end recesses in the ends of the rungs or in the blind holes or through holes in the bars and fastened by tightening the screws.
  • the wheel holders In a non-use position of the rollers, the wheel holders can be parallel to the bars. In a position of use of the rollers, the wheel holders are preferably at an angle of 45 ° to 90 ° to the bars. The angle between the wheel holders and the spars can be adjustable.
  • the roller 10 has a wheel holder 12, which is formed by a rod which is made of a sheet metal strip or flat material. At one end of the wheel holder 12, a wheel 11 is rotatably mounted. For this purpose, an axle is inserted through a bore of the wheel holder, on which the wheel 11 is secured with a nut.
  • a fastening means 13 is provided, with which the roller 10 can be attached to a ladder.
  • the fastening means 13 comprises a toggle screw 131 and a spreading element 130.
  • the toggle screw 131 is inserted through a hole in the wheel holder and initially loosely screwed into the expansion element 130. As a result, the expansion element 130 is secured to the wheel holder 12.
  • the axis of rotation of the wheel 11 and the extension direction of the expansion element are parallel to each other.
  • the conductors 20 to which the roller 10 according to the invention is attached in order to produce an arrangement according to the invention are already known per se, for example from the patent specification with the publication number EP 1 231 356 B1 "Ladder with leveling". It has two spars 21, on which rungs 22 are attached. The rungs 22 are used in recesses of the spars. The rungs 22 are made of a square tube and have open ends. These ends therefore have a directed towards the rung recess 220.
  • the spreading elements 130 of the rollers 10 are inserted into the recesses of the conductors 20.
  • the toggle screws 131 are tightened, causing the expansion elements 130 are spread and create the inside of the recesses 220 of the rungs.
  • the rollers 10 can in the position of use ( Fig. 4 . Fig. 5 ) or in the non-use position ( Fig. 6 . Fig. 7 ) may be attached to the conductor 10.
  • the wheel holder 12 In the position of use, the wheel holder 12 are aligned at approximately 90 ° to the spars, while in the non-use position, the wheel holder 12 are parallel to the bars 21.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ladders (AREA)

Description

Die vorliegende Erfindung betrifft eine Anordnung aus einer Leiter und zwei Rollen mit den Merkmalen des Oberbegriffs des Anspruchs 1.The present invention relates to an arrangement of a conductor and two rollers having the features of the preamble of claim 1.

Aus der Gebrauchsmusterschrift mit der Veröffentlichungsnummer DE 20 2006 016 788 U1 sind an einer Sprossenleiter befestigte Rollen bekannt. Die Leiter weist an einem Ende einen Querriegel auf. Auf diesem Querriegel ruht die Leiter. Mit dem Querriegel wird eine größere Aufstandsfläche der Leiter erreicht, wodurch sie stabiler steht. Die Rollen sind an dem Querriegel der Leiter angebracht.From the utility model with the publication number DE 20 2006 016 788 U1 are attached to a rung ladder fixed roles known. The ladder has a cross bar at one end. The ladder rests on this crossbar. With the crossbar a larger footprint of the ladder is reached, which makes it more stable. The rollers are attached to the cross bar of the ladder.

Der Sinn der Rollen liegt darin, dass die Leiter, sofern sie von einem Aufstellungsort zu einem anderen Aufstellungsort versetzt werden soll, auf den Rädern der Rollen gefahren werden kann. Dazu wird die Leiter an dem den Rollen entgegengesetzten zweiten Ende angehoben, während das erste Ende der Leiter über die Rollen auf dem Boden aufgestützt ist.The purpose of the roles is that the ladder, if it is to be moved from one site to another site, can be driven on the wheels of the rollers. For this purpose, the ladder is raised at the second end opposite the rollers, while the first end of the ladder is supported on the ground by the rollers.

Die Konstruktion der in der Gebrauchsmusterschrift offenbarten Leiter ist so gestaltet, dass die Rollen fest mit der Leiter verbunden sind. Eine nachträgliche Anbringung von Rollen an der Leiter ist nicht möglich, allenfalls wenn der Querriegel für die Befestigung der Rollen vorbereitet ist. Des Weiteren ist es nicht ohne weiteres möglich, die Rollen der Leiter an einer zweiten Leiter anzubringen.The construction of the ladder disclosed in the utility model is designed so that the rollers are firmly connected to the ladder. A subsequent attachment of roles on the ladder is not possible, if necessary, when the cross bar is prepared for the attachment of the rollers. Furthermore, it is not readily possible to attach the rollers of the ladder to a second ladder.

Aus der deutschen Patentschrift DE 731 929 ist eine fahrbare Leiter bekannt, die aus einem Gestell mit Holmen, Stützen, Streben und Stufen besteht. Am unteren Ende der Stützen sind Rollen mit einem starr befestigten Beschlag angebracht. Die am unteren Ende der Holme angebrachten Rollen dagegen sind an je einem Rollenhalter gelagert, die schwenkbar an den Holmen angebracht sind. Die Rollen sind fest, d.h. nicht lösbar mit den Holmen verbunden.From the German patent DE 731 929 is known a mobile ladder, which consists of a frame with spars, columns, struts and steps. At the bottom of the columns rollers are mounted with a rigidly mounted fitting. On the other hand, the rollers attached to the lower end of the spars are mounted on a respective roller holder, which are pivotally mounted on the spars. The rollers are fixed, ie not detachably connected to the spars.

Ferner ist aus dem Dokument EP 0 227 221 A1 eine Rolle für ein Möbelstück bekannt, die mittels eines Spreizelementes an einem untere Ende eines Beins des Möbelstücks befestigt werden kann. Das Bein ist rohrartig und zur Befestigung der Rolle an dem Bein wird das Spreizelement in das Bein eingeschoben und gespreizt. Die Verwendung der Rolle in anderen Bereichen außerhalb der Möbeltechnik ist in dem Dokument nicht beschrieben und nicht angedeutet. Insbesondere fehlt jeder Hinweis auf eine Verwendung der Rolle an einer Leiter.Further, from the document EP 0 227 221 A1 a role for a piece of furniture known which can be fixed by means of a spreading element at a lower end of a leg of the piece of furniture. The leg is tubular and for attachment of the roller to the leg, the spreader is inserted into the leg and spread. The use of the roll in other areas outside the furniture technology is not described in the document and not indicated. In particular, any reference to a use of the role on a ladder is missing.

Hier setzt die Erfindung an.This is where the invention starts.

Der Erfindung liegt die Aufgabe zugrunde, eine Anordnung aus einer Leiter und Rollen für die Leiter vorzuschlagen, wobei die Rollen möglichst einfach an der Leiter montiert und von der Leiter demontiert werden können. Vorzugsweise sind an der Leiter keine besonderen Strukturen vorzusehen, die für die Befestigung der Rollen an der Leiter notwendig sind. Die Rollen sollen möglichst so gestaltet sein, dass sie auch an Leitern befestigt werden können, ohne dass diese besonders dafür gestaltet sind.The invention has for its object to provide an arrangement of a ladder and rollers for the ladder, the rollers can be easily mounted on the ladder and disassembled from the ladder. Preferably, there are no special structures to be provided on the ladder which are necessary for the attachment of the rollers to the ladder. The roles should be as possible designed so that they can be attached to ladders, without these are designed especially for it.

Diese Aufgabe wird durch eine Anordnung mit den Merkmalen des Anspruchs 1 gelöst. Eine Rolle einer erfindungsgemäßen Anordnung weist einen Radhalter auf, an welchem das Rad drehbar befestigt ist. Die Rolle weist ein Befestigungsmittel auf, welches zur lösbaren Befestigung an der Leiter geeignet und eingerichtet ist und welches ein Spreizelement aufweist, das in eine Ausnehmung der Leiter einsteckbar ist. Als Struktur für die Befestigung der Rolle an der Leiter muss an der Leiter lediglich eine Ausnehmung vorgesehen sein, in welcher das Spreizelement der Rolle eingesteckt und gespreizt werden kann. Durch das Spreizen ist dann die Rolle an der Leiter befestigt.This object is achieved by an arrangement having the features of claim 1. A role of an arrangement according to the invention comprises a wheel holder on which the wheel is rotatably mounted. The roller has a fastening means, which is suitable and arranged for releasable attachment to the conductor and which has a spreading element which can be inserted into a recess of the conductor. As a structure for the attachment of the roller to the ladder only a recess must be provided on the conductor, in which the spreader of the role can be inserted and spread. By spreading the role is then attached to the ladder.

Das Befestigungsmittel einer erfindungsgemäßen Rolle umfasst eine Schraube, insbesondere eine Sternschraube oder Knebelschraube. Durch das Anziehen der Schraube wird das Spreizelement gespreizt. Dadurch wird das Spreizelement in der Ausnehmung der Leiter festgesetzt.The attachment means of a roller according to the invention comprises a screw, in particular a star screw or toggle screw. By tightening the screw, the spreader is spread. As a result, the expansion element is fixed in the recess of the ladder.

Bei einer erfindungsgemäßen Rolle kann der Radhalter einen Stab umfassen oder durch einen Stab gebildet sein. Das Rad und die Schraube können auf einer ersten Seite des Radhalters angeordnet sein.In a roller according to the invention, the wheel holder may comprise a rod or be formed by a rod. The wheel and the screw may be disposed on a first side of the wheel holder.

Eine Drehachse des Rades einer erfindungsgemäßen Rolle und eine Einsteckrichtung des Spreizelementes sind vorzugsweise parallel zueinander. Die beim Abrollen auf das Rad einwirkenden Kräfte liegen somit senkrecht zu der Einsteckrichtung. Die Belastung auf dem Rad wirkt somit weder in die Einsteckrichtung noch in die dazu antiparallele Auszugsrichtung des Spreizelementes aus der Leiter. Das Befestigungsmittel einer erfindungsgemäßen Rolle kann eine Schraube, insbesondere eine Sternschraube oder Knebelschraube umfassen. Durch das Anziehen der Schraube kann das Spreizelement gespreizt werden. Dadurch wird das Spreizelement in der Ausnehmung der Leiter festgesetzt.A rotation axis of the wheel of a roller according to the invention and a plug-in direction of the expansion element are preferably parallel to one another. The forces acting on the wheel during unwinding are thus perpendicular to the insertion direction. The load on the wheel thus acts neither in the insertion nor in the anti-parallel extraction direction of the expansion element from the ladder. The attachment means of a roller according to the invention may comprise a screw, in particular a star screw or toggle screw. By tightening the screw, the spreader can be spread. As a result, the expansion element is fixed in the recess of the ladder.

Bei einer erfindungsgemäßen Rolle kann der Radhalter einen Stab umfassen oder durch einen Stab gebildet sein. Das Rad und die Schraube können auf einer ersten Seite des Radhalters angeordnet und das Spreizelement auf einer zweiten Seite des Radhalters angeordnet sein.In a roller according to the invention, the wheel holder may comprise a rod or be formed by a rod. The wheel and the screw can be arranged on a first side of the wheel holder and the spreading element can be arranged on a second side of the wheel holder.

Das Spreizelement einer erfindungsgemäßen Rolle kann im nicht gespreizten Zustand im Wesentlichen quaderförmig sein. Vorzugsweise ist der Querschnitt des Spreizelementes an die Form der Ausnehmung in der Leiter angepasst. Es ist daher insbesondere auch eine dreieckige oder runde Querschnittsform denkbar.The expansion element of a roll according to the invention can be substantially parallelepiped in the non-spread state. Preferably, the cross section of the expansion element is adapted to the shape of the recess in the ladder. It is therefore conceivable in particular a triangular or round cross-sectional shape.

Bei einer erfindungsgemäßen Anordnung aus einer Leiter und zwei erfindungsgemäßen Rollen sind die Rollen im Bereich eines ersten Endes der Leiter befestigt. Die Rollen sind an Holmen der Leiter angebracht.In an inventive arrangement of a conductor and two rollers according to the invention, the rollers are mounted in the region of a first end of the ladder. The rollers are attached to spars of the ladder.

Bei einer für eine erste Variante der erfindungsgemäßen Anordnung verwendeten Leitern sind die Sprossen in Durchgangslöchern der Holme eingesetzt. Die Sprossen sind zumindest an ihren Enden hülsenartig oder topfartig ausgebildet und haben eine zumindest endseitig offene Ausnehmung. Die Sprossen können Rohre, insbesondere Vierkantrohre oder Dreikantrohre sein.In a ladder used for a first variant of the arrangement according to the invention, the rungs are inserted into through holes of the spars. The sprouts are sleeve-like or pot-shaped at least at their ends and have at least one open recess at the end. The rungs can be tubes, in particular square tubes or triangular tubes.

Bei einer für eine zweite Variante der erfindungsgemäßen Anordnung verwendeten Leitern können die Holme quer zu ihrer Erstreckungsrichtung angeordnete Sacklöcher oder Durchgangslöcher aufweisen.In a ladder used for a second variant of the arrangement according to the invention, the spars may have blind holes or through-holes arranged transversely to their direction of extent.

Bei erfindungsgemäßen Anordnungen sind die Spreizelemente der Rollen in die endseitig offenen Ausnehmungen in den Enden der Sprossen bzw. in die Sacklöcher oder Durchgangslöcher in den Holmen eingesteckt und durch Anziehen der Schrauben befestigt.In arrangements according to the invention, the spreading elements of the rollers are inserted into the open end recesses in the ends of the rungs or in the blind holes or through holes in the bars and fastened by tightening the screws.

In einer Nichtgebrauchsstellung der Rollen können die Radhalter parallel zu den Holmen liegen. In einer Gebrauchsstellung der Rollen liegen die Radhalter bevorzugt in einem Winkel von 45° bis 90° zu den Holmen. Der Winkel zwischen den Radhaltern und den Holmen kann einstellbar sein.In a non-use position of the rollers, the wheel holders can be parallel to the bars. In a position of use of the rollers, the wheel holders are preferably at an angle of 45 ° to 90 ° to the bars. The angle between the wheel holders and the spars can be adjustable.

Weitere Merkmale und Vorteile der vorliegenden Erfindung werden deutlich anhand der nachfolgenden Beschreibung bevorzugter Ausführungsbeispiele unter Bezugnahme auf die beiliegenden Abbildungen. Darin zeigen

Fig. 1
eine perspektivische Ansicht einer erfindungsgemäßen Rolle zum Teil als Explosionsdarstellung,
Fig. 2
die gleiche Ansicht der Rolle im zusammengesetzten Zustand,
Fig. 3
eine Leiter und die Rolle aus den Figuren 1 und 2 vor der Verbindung in einer Detailansicht,
Fig. 4
eine Detailansicht der Anordnung aus der Leiter und der Rolle mit der Rolle in der Gebrauchsstellung,
Fig. 5
eine Gesamtansicht der Anordnung beim Schieben der Anordnung durch einen Benutzer,
Fig. 6
eine entsprechende Detailansicht der Anordnung mit der Rolle in der Nichtgebrauchsstellung und
Fig. 7
eine Gesamtansicht einer aufgerichteten Leiter.
Further features and advantages of the present invention will become apparent from the following description of preferred embodiments with reference to the accompanying drawings. Show in it
Fig. 1
a perspective view of a roller according to the invention partly as an exploded view,
Fig. 2
the same view of the roll in the assembled state,
Fig. 3
a ladder and the role of the FIGS. 1 and 2 before the connection in a detailed view,
Fig. 4
a detailed view of the arrangement of the conductor and the roller with the role in the position of use,
Fig. 5
an overall view of the arrangement when pushing the arrangement by a user,
Fig. 6
a corresponding detail view of the arrangement with the role in the non-use position and
Fig. 7
an overall view of an erect ladder.

Die erfindungsgemäße Rolle 10 weist einen Radhalter 12 auf, der durch einen Stab gebildet wird, der aus einem Blechstreifen oder Flachmaterial hergestellt ist. An einem Ende des Radhalters 12 ist ein Rad 11 drehbar befestigt. Dazu ist eine Achse durch eine Bohrung des Radhalters hindurch gesteckt, auf welcher das Rad 11 mit einer Mutter gesichert ist.The roller 10 according to the invention has a wheel holder 12, which is formed by a rod which is made of a sheet metal strip or flat material. At one end of the wheel holder 12, a wheel 11 is rotatably mounted. For this purpose, an axle is inserted through a bore of the wheel holder, on which the wheel 11 is secured with a nut.

An dem anderen Ende des Radhalters 12 ist ein Befestigungsmittel 13 vorgesehen, mit welchem die Rolle 10 an einer Leiter befestigt werden kann. Das Befestigungsmittel 13 umfasst eine Knebelschraube 131 und ein Spreizelement 130. Die Knebelschraube 131 ist durch eine Bohrung in dem Radhalter hindurch gesteckt und in das Spreizelement 130 zunächst lose eingeschraubt. Dadurch ist das Spreizelement 130 an dem Radhalter 12 gesichert.At the other end of the wheel holder 12, a fastening means 13 is provided, with which the roller 10 can be attached to a ladder. The fastening means 13 comprises a toggle screw 131 and a spreading element 130. The toggle screw 131 is inserted through a hole in the wheel holder and initially loosely screwed into the expansion element 130. As a result, the expansion element 130 is secured to the wheel holder 12.

Die Drehachse des Rades 11 und die Erstreckungsrichtung des Spreizelementes liegen parallel zueinander.The axis of rotation of the wheel 11 and the extension direction of the expansion element are parallel to each other.

Die Leiter 20, an welcher die erfindungsgemäße Rolle 10 befestigt wird, um eine erfindungsgemäße Anordnung herzustellen, ist an sich schon bekannt, zum Beispiel aus der Patentschrift mit der Veröffentlichungsnummer EP 1 231 356 B1 "Leiter mit einem Niveauausgleich". Sie weist zwei Holme 21 auf, an denen Sprossen 22 befestigt sind. Die Sprossen 22 sind dazu in Ausnehmungen der Holme eingesetzt. Die Sprossen 22 sind aus einem Vierkantrohr hergestellt und haben offene Enden. Diese Enden haben daher eine in Richtung der Sprosse gerichtete Ausnehmung 220.The conductors 20 to which the roller 10 according to the invention is attached in order to produce an arrangement according to the invention are already known per se, for example from the patent specification with the publication number EP 1 231 356 B1 "Ladder with leveling". It has two spars 21, on which rungs 22 are attached. The rungs 22 are used in recesses of the spars. The rungs 22 are made of a square tube and have open ends. These ends therefore have a directed towards the rung recess 220.

Zur Befestigung der Rollen 10 sind die Spreizelemente 130 der Rollen 10 in die Ausnehmungen der Leiter 20 eingesteckt. Die Knebelschrauben 131 sind fest angezogen, wodurch die Spreizelemente 130 gespreizt sind und sich an die Innenseite der Ausnehmungen 220 der Sprossen anlegen.For fixing the rollers 10, the spreading elements 130 of the rollers 10 are inserted into the recesses of the conductors 20. The toggle screws 131 are tightened, causing the expansion elements 130 are spread and create the inside of the recesses 220 of the rungs.

Die Rollen 10 können in der Gebrauchslage (Fig. 4, Fig. 5) oder in der Nichtgebrauchslage (Fig. 6, Fig. 7) an der Leiter 10 befestigt sein. In der Gebrauchslage sind die Radhalter 12 in etwa 90° zu den Holmen ausgerichtet, während in der Nichtgebrauchslage die Radhalter 12 parallel zu den Holmen 21 liegen.The rollers 10 can in the position of use ( Fig. 4 . Fig. 5 ) or in the non-use position ( Fig. 6 . Fig. 7 ) may be attached to the conductor 10. In the position of use, the wheel holder 12 are aligned at approximately 90 ° to the spars, while in the non-use position, the wheel holder 12 are parallel to the bars 21.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

1010
Rollerole
1111
Radwheel
1212
RadhalterWheel holder
1313
Befestigungsmittelfastener
130130
Spreizelementspreader
131131
KnebelschraubeTommy screw
2020
Leiterladder
2121
HolmHolm
2222
Sprosserung
220220
Ausnehmung am Ende der SprosseRecess at the end of the rung

Claims (8)

  1. Arrangement made up of a ladder (20) and two rollers (10), wherein the rollers (10) are fastened in the region of a first end of the ladder (20),
    wherein the rollers (10) are fitted on side members (21) of the ladder (20) and the rollers (10) each have a wheel holder (12), on which the wheel (11) is fastened in a rotatable manner,
    characterized
    in that either
    - the rungs (22) are inserted in through-holes of the side members (21) and the rungs (22) are of sleeve-like or cup-like design at least at their ends, and have an at least open-end recess (220),
    or
    - the side members (21) have through-holes or blind holes arranged transversely to their direction of extent,
    in that the rollers (10) each have a fastening means (13), which is suitable, and intended, for releasable fastening on a side member (21) of the ladder (20) and has an expansion element (130), wherein the fastening means (13) comprises a screw (131), in particular a star screw or thumb screw, wherein the expansion element (130) is suitable, and intended, for being expanded by virtue of the screw (131) being tightened,
    and
    in that the expansion elements of the rollers (10) engage in the open-end recess in the ends of the rungs (22), and in the blind holes or through-holes in the side member (21), and are fastened there by virtue of the screws (131) of the rollers (10) being tightened.
  2. Arrangement according to Claim 1, characterized in that the axis of rotation of the wheel (11) and a plug-in direction of the expansion element (130) are parallel to one another.
  3. Arrangement according to either of Claims 1 and 2, characterized in that the wheel holder (12) comprises a rod or is formed by a rod.
  4. Arrangement according to Claim 3, characterized in that the wheel (10) and the screw (131) are arranged on a first side of the rod and the expansion element (130) is arranged on a second side of the rod.
  5. Arrangement according to one of Claims 1 to 4, characterized in that the expansion element (130), in the non-expanded state, is essentially cuboidal.
  6. Arrangement according to one of Claims 1 to 5, characterized in that, in a not-in-use position of the rollers (10), the wheel holders (12) are located parallel to the side members (21).
  7. Arrangement according to one of Claims 1 to 6, characterized in that, in a use position of the rollers (10), the wheel holders (12) are located at an angle of 45° to 90° to the side members (21).
  8. Arrangement according to one of Claims 1 to 7, characterized in that it is possible to adjust the angle between the wheel holders (12) and the side members (21).
EP09175553.8A 2008-12-02 2009-11-10 Assembly of a ladder and two rollers Not-in-force EP2194225B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200820015903 DE202008015903U1 (en) 2008-12-02 2008-12-02 Rollers for a ladder and arrangement of a rung ladder and such rolls

Publications (3)

Publication Number Publication Date
EP2194225A2 EP2194225A2 (en) 2010-06-09
EP2194225A3 EP2194225A3 (en) 2012-04-18
EP2194225B1 true EP2194225B1 (en) 2014-01-15

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ID=40365859

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09175553.8A Not-in-force EP2194225B1 (en) 2008-12-02 2009-11-10 Assembly of a ladder and two rollers

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EP (1) EP2194225B1 (en)
DE (1) DE202008015903U1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITVR20120149A1 (en) * 2012-07-19 2014-01-20 F A C A L S R L TRANSFORMABLE FOLDER IN STAIRCASE
DE102013005324B4 (en) * 2013-03-26 2020-01-16 Hymer-Leichtmetallbau Gmbh & Co. Kg Platform ladder with ladder extension
IL282106B1 (en) * 2021-04-06 2024-05-01 Kapro Ind Ltd Caster device pair for use with ladder

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE731929C (en) * 1941-04-10 1943-02-18 Kurt Weber Mobile stepladder
GB783518A (en) * 1954-03-22 1957-09-25 Cyril Harcourt Matthews Improvements in or relating to step ladders, trestles, working platforms or the like

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8524419D0 (en) * 1985-10-03 1985-11-06 Flexello Castors & Wheels Expander device
US5881838A (en) * 1996-08-26 1999-03-16 P&S Improvements, Inc. Ladder having movable ladder support
DE50113693D1 (en) 2001-02-09 2008-04-17 Loh Kg Hailo Werk Ladder with leveling
DE202006016788U1 (en) 2006-11-03 2007-02-15 Günzburger Steigtechnik Munk GmbH Ladder or scaffold has rollers at one end which are distanced from mounting plane when ladder is in use but rest and roll on ground when ladder is raised at other end for transportation

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE731929C (en) * 1941-04-10 1943-02-18 Kurt Weber Mobile stepladder
GB783518A (en) * 1954-03-22 1957-09-25 Cyril Harcourt Matthews Improvements in or relating to step ladders, trestles, working platforms or the like

Also Published As

Publication number Publication date
EP2194225A2 (en) 2010-06-09
EP2194225A3 (en) 2012-04-18
DE202008015903U1 (en) 2009-02-19

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