EP0243765A1 - Ladder arrangement with extendable ladder sections - Google Patents

Ladder arrangement with extendable ladder sections Download PDF

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Publication number
EP0243765A1
EP0243765A1 EP87105390A EP87105390A EP0243765A1 EP 0243765 A1 EP0243765 A1 EP 0243765A1 EP 87105390 A EP87105390 A EP 87105390A EP 87105390 A EP87105390 A EP 87105390A EP 0243765 A1 EP0243765 A1 EP 0243765A1
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EP
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Prior art keywords
ladder
arrangement according
conductor
rungs
longitudinal
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EP87105390A
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German (de)
French (fr)
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EP0243765B1 (en
EP0243765B2 (en
Inventor
Paul Dipl.-Ing. Keller (Fh)
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Iveco Magirus AG
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Iveco Magirus AG
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Priority to AT87105390T priority Critical patent/ATE57236T1/en
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    • 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
    • E06C1/04—Ladders for resting against objects, e.g. walls poles, trees
    • E06C1/08—Ladders for resting against objects, e.g. walls poles, trees multi-part
    • E06C1/12—Ladders for resting against objects, e.g. walls poles, trees multi-part extensible, e.g. telescopic
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C5/00—Ladders characterised by being mounted on undercarriages or vehicles Securing ladders on vehicles
    • E06C5/02—Ladders characterised by being mounted on undercarriages or vehicles Securing ladders on vehicles with rigid longitudinal members
    • E06C5/04—Ladders characterised by being mounted on undercarriages or vehicles Securing ladders on vehicles with rigid longitudinal members capable of being elevated or extended ; Fastening means during transport, e.g. mechanical, hydraulic

Definitions

  • the invention relates to a ladder arrangement with extendable ladder parts, in particular a fire ladder, according to the preamble of claim 1.
  • Known extendable ladder arrangements in particular fire ladder ladders, have individual extendable ladder parts with a lower chord and lateral upper chords that can be used as a handrail. The rungs are in the lower flange.
  • the individual conductor parts are arranged one inside the other, the base conductor part enclosing all other conductor parts in cross-section and the first conductor part assigned to the tip of the conductor located at the innermost position (see, inter alia, DE-OS 33 26 644, DE-PS 955 380, DE-OS 32 32 299).
  • Such a ladder set with its U-shaped cross-sectional profile in all conductor parts has only moderate torsional rigidity.
  • the first ladder section in particular is subject to very large angles of twist due to its low overall height when subjected to lateral loads, for example when accelerating or decelerating the rotary movement with a rescue cage or elevator attached to the ladder tip. Even with smaller work in the rescue cage, the reaction forces result in large angles of rotation of the first ladder part, which are undesirable during rescue maneuvers. People in the rescue cage or elevator find this very uncomfortable and feel quite insecure.
  • the rungs in the lower flange and the (diagonal) struts between the upper and lower flange are designed to be comparatively stable and, in particular, to increase torsional rigidity the two longitudinal side rails of the lower flange have a comparatively complicated profile. This results in a higher construction weight and higher manufacturing costs. Nevertheless is the torsional rigidity due to the overall open U-shaped cross-sectional profile of each of the conductor parts only moderately realized.
  • the object of the invention is to provide a ladder arrangement with extendable ladder parts of the type mentioned at the outset, which is of simple construction and in which, in particular, the first ladder part, which is poorly dimensioned in the prior art, is particularly torsion-resistant.
  • the object on which the invention is based is achieved by the features specified in the characterizing part of claim 1.
  • the first ie: in the extended condition of the conductor arrangement uppermost or forwardmost conductor part in cross section of a closed lattice girder, wherein the Aufstie ssprossen g are attached to the upper flange.
  • the invention therefore provides for the rungs in the first part no longer to be attached to the lower longitudinal spars, but in the transverse direction on the upper flange.
  • the invention fulfills the boundary conditions according to DIN 14701.
  • the swing-out and fixable handrail on the top chord in the area of the rungs makes it easier to climb on and off the ladder.
  • the handrail can be positioned manually with the aid of springs or pneumatically, hydraulically, electrically, from below or from above with respect to the first ladder part.
  • An inwardly folded handrail is also possible, which can also be folded up in the form described above when climbing the first ladder part.
  • the elements are omitted which have absorbed the torsional forces for the open cross-sectional profile of the first conductor part.
  • the bars are welded together horizontally with diagonal struts, thus closing the lattice girder.
  • Another feature is the usability of the longitudinal bars as a water pipe.
  • the torsion-resistant ladder set is designed so that it is also possible to operate the elevator with the handrail folded in. By optimizing the elements used, the weight of the first conductor part is increased only insignificantly, taking into account the weldability with the welding robot.
  • the beginning and end of the first ladder section also provide intermediate or bridging rungs, around a rung. Transition from the adjacent ladder section, where the climbing rungs are attached to the lower chord, or. at the neighboring rescue cage.
  • the invention fulfills the requirements for a lifting rescue device with regard to payload (for example a 3-man basket), which have risen sharply in recent years. It creates a safe feeling for people in the rescue cage and in the elevator thanks to significantly lower torsional movements and angles.
  • the tip of the ladder is characterized by only slight vibrations.
  • a particularly compact design results from the integrated water flow in the first ladder section in the longitudinal spars, which are comparatively simply profiled in cross-section.
  • the high torsional stiffness or the large section modulus for the reaction forces is particularly advantageous in monitor mode.
  • 1 and 2 show a ladder arrangement (1) in the form of a fire brigade ladder with three ladder parts (2, 3) which have upper straps (5) and lower straps (4) and are telescopically inserted in the area of their lower straps (4) and are guided along on sliders /.
  • the innermost or first conductor part (2) is assigned to the conductor tip (19) and is completely enclosed in cross section by the outer conductor parts (3), with all the top chords (5) lying in one plane.
  • the two outer ladder parts (3) are basically of the same construction and include asymmetrically profiled side rails (21) in the area of the lower chords (4), which are connected to each other by transverse ladder rungs (16), as well as differently profiled lateral struts in the area of the top chords (5) Longitudinal bars (20) connected to the profiled longitudinal bars (21) of the lower flange via diagonal struts (6) . (4) are firmly connected.
  • the outer conductor parts (3) form an open U-shaped cross-sectional profile.
  • the tip of the conductor (19) associated with the first circuit part (2) has, in contrast to the other ladder parts (3) on a g e-connected cross-sectional profile.
  • simply profiled lower longitudinal spars (23) are provided, which are connected to one another by diagonal struts (15).
  • Longitudinal bars (23) and diagonal struts (6) of the first conductor part (2) correspond approximately to the other conductor parts (3), but are of comparatively small dimensions.
  • Characteristic of the Er The invention is the cross-connection between the upper longitudinal spars (20) of the first ladder part (2) by arranging the rungs (7) in the upper flange (5).
  • the climbing rungs (7) significantly increase the torsional rigidity of the first ladder part (2), supported by lower longitudinal bars (14) in the area of the longitudinal bars (23) or sheets of the lower flange.
  • the longitudinal bars (14) have a closed square profile and are arranged in portrait format. Due to the closed square profile of the longitudinal spars (14), they can be used as water pipes in the area of the first ladder part (2).
  • swivel straps which serve as a handrail for a user in the swiveled-up position, as can also be seen in detail in FIG. 1 has connecting struts (24), the pivot axis (11) of which run parallel to the upper longitudinal spars (20), and consequently a strap (10) between a retracted position essentially parallel to the ascending rungs (7) according to arrow A of FIG. 1 and the substantially vertical handrail position.
  • the belt (10) in the manner of a parallelogram according to arrow B in the longitudinal direction of the first conductor part (2) can be pivoted, specifically because of a power drive (13), for example a piston-cylinder arrangement in a hydraulically operated unit, the is articulated between connecting struts (24) and the base of the first conductor part (2).
  • the power drive (13) can have a damping device.
  • the pivoting of the handrail can also be carried out by hand supported by springs.
  • a lock (18) is also expediently provided, which secures the end positions of the belt (10).
  • FIG. 2 it is shown that the present invention is suitable even when the ladder arrangement (1) is operated with an elevator (9) despite the existing belting (10).
  • the elevator (9) runs with the belt (10) swung in, in each case on the upper aura (5) of the individual conductor parts (2 or 3).
  • a strap (10) advantageously has connecting struts (24) with a height (h) Z 280 mm.
  • the preferred clear width (b) between the swung-up straps (10) is at least 450 mm (cf. FIG. 4).

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

Abstract

1. A ladder arrangement (1) comprising extendable ladder parts (2, 3), especially a fire ladder, the individual ladder parts (2, 3) having bottom elongate members (4) and top elongate members (5), permanently interconnected by struts (6), characterised in that the first ladder part (2), i.e. the top or front part when the arrangement (1) is extended, is given the cross-section of a closed lattice girder, rungs (7) being secured to the top elongate member (5) of the first ladder part (2), and the top elongate member (5) of the first ladder part (2) has at least one lateral, preferably upwardly pivotable, peripheral elongate member (10) serving as a handrail.

Description

Die Erfindung betrifft eine Leiteranordnung mit ausschiebbaren Leiterteilen, insbesondere eine Feuerwehrleiter, gemäß Oberbegriff des Anspruchs 1.The invention relates to a ladder arrangement with extendable ladder parts, in particular a fire ladder, according to the preamble of claim 1.

Bekannte verlängerbare Leiteranordnungen, insbesondere Feuerwehrleitern, besitzen einzelne ausschiebbare Leiterteile mit Untergurt und seitlichen Obergurten, die als Handlauf verwendet werden können. Die Sprossen befinden sich im Untergurt. Im nichtverlängerten Zustand der Leiteranordnung sind die einzelnen Leiterteile ineinander angeordnet, wobei das Basisleiterteil sämtliche anderen Leiterteile querschnittsmäßig umschließt und das der Leiterspitze zugeordnete erste Leiterteil an innerster Stelle gelegen ist (vgl. uia. DE-OS 33 26 644, DE-PS 955 380, DE-OS 32 32 299). Ein derartiger Hubleitersatz mit seinem U-förmigen Querschnittsprofil in allen Leiterteilen besitzt nur mäßige Torsionssteifigkeit. Besonders das erste Leiterteil unterliegt durch seine niedrige Bauhöhe bei seitlicher Beanspruchung, beispielsweise bei Beschleunigung bzw. Verzögerung der Drehbewegung mit eingehängtem Rettungskorb oder Fahrstuhl an der Leiterspitze, sehr großen Verdrehwinkeln. Selbst bei kleineren Arbeiten im Rettungskorb ergeben sich durch die Reaktionskräfte große Verdrehwinkel des ersten Leiterteils, welche bei Rettungsmanövern unerwünscht sind. Personen im Rettungskorb oder Fahrstuhl empfinden dies als sehr unangenehm und fühlen sich recht unsicher.Um die Torsionssteifigkeit zu erhöhen, werden nach dem Stand der Technik die Sprossen im Untergurt und die seitlichenzwischen Ober- und Untergurt gelegenen (Diagonal)-Streben vergleichsweise stabil gestaltet und insbesondere die beiden seitlichen Längsholme des Untergurts querschnittsmäßig vergleichsweise kompliziert profiliert. Dadurch entstehen höheres Baugewicht und höhere Fertigungskosten. Gleichwohl ist die Torsionssteifigkeit aufgrund des insgesamt offenen U-förmigen Querschnittsprofils jedes der Leiterteile nur mäßig realisiert.Known extendable ladder arrangements, in particular fire ladder ladders, have individual extendable ladder parts with a lower chord and lateral upper chords that can be used as a handrail. The rungs are in the lower flange. In the non-extended state of the conductor arrangement, the individual conductor parts are arranged one inside the other, the base conductor part enclosing all other conductor parts in cross-section and the first conductor part assigned to the tip of the conductor located at the innermost position (see, inter alia, DE-OS 33 26 644, DE-PS 955 380, DE-OS 32 32 299). Such a ladder set with its U-shaped cross-sectional profile in all conductor parts has only moderate torsional rigidity. The first ladder section in particular is subject to very large angles of twist due to its low overall height when subjected to lateral loads, for example when accelerating or decelerating the rotary movement with a rescue cage or elevator attached to the ladder tip. Even with smaller work in the rescue cage, the reaction forces result in large angles of rotation of the first ladder part, which are undesirable during rescue maneuvers. People in the rescue cage or elevator find this very uncomfortable and feel quite insecure. To increase torsional rigidity, the rungs in the lower flange and the (diagonal) struts between the upper and lower flange are designed to be comparatively stable and, in particular, to increase torsional rigidity the two longitudinal side rails of the lower flange have a comparatively complicated profile. This results in a higher construction weight and higher manufacturing costs. Nevertheless is the torsional rigidity due to the overall open U-shaped cross-sectional profile of each of the conductor parts only moderately realized.

Aufgabe der Erfindung ist die Schaffung einer Leiteranordnung mit ausschiebbaren Leiterteilen der eingangs genannten Art, die einfach aufgebaut ist und bei der insbesondere das beim Stand der Technik schwach dimensionierte erste Leiterteil besonders torsionssteif ausgebildet ist.The object of the invention is to provide a ladder arrangement with extendable ladder parts of the type mentioned at the outset, which is of simple construction and in which, in particular, the first ladder part, which is poorly dimensioned in the prior art, is particularly torsion-resistant.

Gelöst wird die der Erfindung zugrundeliegende Aufgabe durch die im kennzeichnenden Teil des Anspruchs 1 angegebenen Merkmale. Insbesondere ist das erste, d.h: im ausgeschobenen Zustand der Leiteranordnung oberste bzw. vorderste Leiterteil im Querschnitt als geschlossener Gitterträger ausgebildet, wobei die Aufstiegssprossen am Obergurt befestigt sind. Die Erfindung sieht also vor, die Sprossen im ersten Teil nicht mehr an den unteren Längsholmen zu befestigen, sondern in Querrichtung am Obergurt.The object on which the invention is based is achieved by the features specified in the characterizing part of claim 1. In particular, the first, ie: in the extended condition of the conductor arrangement uppermost or forwardmost conductor part in cross section of a closed lattice girder, wherein the Aufstie ssprossen g are attached to the upper flange. The invention therefore provides for the rungs in the first part no longer to be attached to the lower longitudinal spars, but in the transverse direction on the upper flange.

Vorteilhafte Ausgestaltungen der Erfindung ergeben sich aus den Ansprüchen 2 bis 16.Advantageous embodiments of the invention result from claims 2 to 16.

Trotz des geschlossenen Gitterträgerprofils erfüllt die Erfindung die Randbedingungen nach DIN 14701. Der ausschwenkbare und fixierbare Handlauf am Obergurt im Bereich der Sprossen erleichtert das Auf- und Absteigen der Leiter. Der Handlauf kann manuell unterstützt von Federn oder pneumatisch, hydraulisch, elektrisch, von unten oder von oben bezüglich des ersten Leiterteils in Stellung gebracht werden. Auch ist ein nach innen geklappter Handlauf möglich, welcher beim Besteigen des ersten Leiterteils ebenfalls in der vorher beschriebenen Form hochgeklappt werden kann. Am Holmquerschnitt können nun die Elemente entfallen, welche für das offene Querschnittsprofil des ersten Leiterteils die Torsionskräfte aufgenommen haben. Dafür werden die Holme in der Horizontalen mit diagonalen Streben zusammengeschweißt und somit der Gitterträger geschlossen. Ein weiteres Merkmal ist auch die Verwendbarkeit der Längsholme als Wasserführungsrohr. Der torsionssteife Leitersatz ist so ausgestaltet, daß auch ein Fahrstuhlbetrieb bei eingeklapptem Handlauf möglich ist. Durch Optimierung der verwendeten Elemente wird das Gewicht des ersten Leiterteils nur unwesentlich erhöht unter Berücksichtigung der Schweißbarkeit mit dem Schweißroboter. Anfang und Ende des ersten Leiterteils sehen zusätzlich Zwischen- oder Überbrückungssprossen vor, um einen Sprossen- . übergang vom benachbarten Leiterteil, bei dem die Aufstiegssprossen am Untergurt befestigt sind,bzw. beim benachbarten Rettungskorb herzustellen. Durch die Erfindung werden die in den letzten Jahren sehr stark angestiegenen Anforderungen an ein Hubrettungsgerät bezüglich Nutzlast (z.B. 3-Mann-Korb) erfüllt. Sie schafft ein sicheres Gefühl der Personen im Rettungskorb und im Fahrstuhl durch wesentlich geringere Torsionsbewegungen und Torsionswinkel. Die Leiterspitze zeichnet sich nur durch geringe Schwingbewegungen aus. Ein besonders kompakter Aufbau ergibt sich durch die integrierte Wasserführung im ersten Leiterteil in den Längsholmen, die vergleichsweise einfach querschnittsmäßig profiliert sind. Die große Torsionssteifigkeit bzw. das große Widerstandsmoment für die Reaktionskräfte ist insbesondere bei Monitorbetrieb von Vorteil.Despite the closed lattice girder profile, the invention fulfills the boundary conditions according to DIN 14701. The swing-out and fixable handrail on the top chord in the area of the rungs makes it easier to climb on and off the ladder. The handrail can be positioned manually with the aid of springs or pneumatically, hydraulically, electrically, from below or from above with respect to the first ladder part. An inwardly folded handrail is also possible, which can also be folded up in the form described above when climbing the first ladder part. At the cross-section of the spar can now the elements are omitted which have absorbed the torsional forces for the open cross-sectional profile of the first conductor part. For this, the bars are welded together horizontally with diagonal struts, thus closing the lattice girder. Another feature is the usability of the longitudinal bars as a water pipe. The torsion-resistant ladder set is designed so that it is also possible to operate the elevator with the handrail folded in. By optimizing the elements used, the weight of the first conductor part is increased only insignificantly, taking into account the weldability with the welding robot. The beginning and end of the first ladder section also provide intermediate or bridging rungs, around a rung. Transition from the adjacent ladder section, where the climbing rungs are attached to the lower chord, or. at the neighboring rescue cage. The invention fulfills the requirements for a lifting rescue device with regard to payload (for example a 3-man basket), which have risen sharply in recent years. It creates a safe feeling for people in the rescue cage and in the elevator thanks to significantly lower torsional movements and angles. The tip of the ladder is characterized by only slight vibrations. A particularly compact design results from the integrated water flow in the first ladder section in the longitudinal spars, which are comparatively simply profiled in cross-section. The high torsional stiffness or the large section modulus for the reaction forces is particularly advantageous in monitor mode.

Die Erfindung wird nachfolgend anhand von Ausführungsbeispielen unter Bezugnahme auf die beigefügte Zeichnung näher erläutert; es zeigen:

  • Fig. 1 eine Leiteranordnung gemäß der Erfindung in einem schematischen Querschnitt,
  • Fig. 2 eine andere Leiteranordnung ähnlich der Fig. 1,
  • Fig. 3 der obere Teil der Leiteranordnung gemäß Fig. 2 in schematischer Seitenansicht, und
  • Fig. 4 eine Einzelheit der Fig. 2 in vergrößerter Ansicht.
The invention is explained in more detail below on the basis of exemplary embodiments with reference to the accompanying drawing; show it:
  • F ig. 1 shows a conductor arrangement according to the invention in a schematic cross section,
  • Fig. 2 shows another conductor arrangement similar to the Fi g . 1,
  • 3 shows the upper part of the conductor arrangement according to FIG. 2 in a schematic side view, and
  • Fig. 4 shows a detail of Fig. 2 in an enlarged view.

In den Fig. 1 und 2 ist eine Leiteranordnung (1) in Form einer Feuerwehrleiter mit drei Leiterteilen (2,3) dargestellt, die Obergurte (5) und Untergurte (4) aufweisen und im Bereich ihrer Untergurte (4) teleskopartig inein- andergesteckt und über Gleiter/längsgeführt sind. Das innerste bzw. erste Leiterteil (2) ist der Leiterspitze (19) zugeordnet und wird von den äußeren Leiterteilen (3) querschnittsmäßig vollständig umschlossen, wobei sämtliche Obergurte (5) in einer Ebene liegen.1 and 2 show a ladder arrangement (1) in the form of a fire brigade ladder with three ladder parts (2, 3) which have upper straps (5) and lower straps (4) and are telescopically inserted in the area of their lower straps (4) and are guided along on sliders /. The innermost or first conductor part (2) is assigned to the conductor tip (19) and is completely enclosed in cross section by the outer conductor parts (3), with all the top chords (5) lying in one plane.

Die beiden äußeren Leiterteile (3) sind grundsätzlich gleich aufgebaut und umfassen im Bereich der Untergurte (4) unsymmetrisch profilierte seitliche Längsholme (21), die durch querverlaufende Leitersprossen (16) miteinander verbunden sind, sowie im Bereich der Obergurte (5) anders profilierte seitliche Längsholme (20), die über seitliche Diagonalstreben (6) mit den profilierten Längsholmen (21) des Untergurts .(4) fest verbunden sind. Die äußeren Leiterteile (3) bilden ein oben offenes U-förmiges Querschnittsprofil.The two outer ladder parts (3) are basically of the same construction and include asymmetrically profiled side rails (21) in the area of the lower chords (4), which are connected to each other by transverse ladder rungs (16), as well as differently profiled lateral struts in the area of the top chords (5) Longitudinal bars (20) connected to the profiled longitudinal bars (21) of the lower flange via diagonal struts (6) . (4) are firmly connected. The outer conductor parts (3) form an open U-shaped cross-sectional profile.

Das der Leiterspitze (19) zugeordnete erste Leiterteil (2) weist im Gegensatz zu den anderen Leiterteilen (3) ein ge-schlossenes Querschnittsprofil auf. Im einzelnen sind einfach profilierte untere Längsholme (23) vorgesehen, die durch Diagonalstreben (15) miteinander verbunden sind. Längsholme (23) und Diagonalstreben (6) des ersten Leiterteils (2) entsprechen in etwa den anderen Leiterteilen (3), sind jedoch vergleichsweise klein dimensioniert. Wesensmerkmal der Erfindung ist die Querverbindung zwischen den oberen Längsholmen (20) des ersten Leiterteils (2) durch Anordnung der Aufstiegssprossen (7) in den Obergurt (5). Die Aufstiegssprossen (7) erhöhen wesentlich die Torsionssteifigkeit des ersten Leiterteils (2), unterstützt durch untere Längsholme (14) im Bereich der Längsholme (23) oder -bleche des Untergurts. Die Längsholme (14) weisen ein geschlossenes Vierkantprofil auf und sind im Hochformat angeordnet. Aufgrund des geschlossenen Vierkantprofils der Längsholme (14) können diese als Wasserführungsrohre im Bereich des ersten Leiterteils (2) verwendet werden.The tip of the conductor (19) associated with the first circuit part (2) has, in contrast to the other ladder parts (3) on a g e-connected cross-sectional profile. In particular, simply profiled lower longitudinal spars (23) are provided, which are connected to one another by diagonal struts (15). Longitudinal bars (23) and diagonal struts (6) of the first conductor part (2) correspond approximately to the other conductor parts (3), but are of comparatively small dimensions. Characteristic of the Er The invention is the cross-connection between the upper longitudinal spars (20) of the first ladder part (2) by arranging the rungs (7) in the upper flange (5). The climbing rungs (7) significantly increase the torsional rigidity of the first ladder part (2), supported by lower longitudinal bars (14) in the area of the longitudinal bars (23) or sheets of the lower flange. The longitudinal bars (14) have a closed square profile and are arranged in portrait format. Due to the closed square profile of the longitudinal spars (14), they can be used as water pipes in the area of the first ladder part (2).

Bei einer verlängerten Leiteranordnung (1) mit ausgeschobenen Leiterteilen (2 und 3) benützt eine Bedienungsperson anfangs die unteren Leitersprossen (16) der Leiterteile (3) und im Bereich des ersten Leiterteils (2) die oberen Aufstiegssprossen (7). Um einen Übergang zwischen den unteren Quersprossen (16) und den oberen Aufstiegssprossen (7) herzustellen, befinden sich am Längsende des ersten Leiterteils (2) zwischen Obergurt (5) und Untergurt (4) überbrückungssprossen (8) an zugeordneten seitlichen Diagonalstreben (6), wie dies im einzelnen der Fig. 3 zu entnehmen ist.In the case of an extended ladder arrangement (1) with ladder parts (2 and 3) pushed out, an operator initially uses the lower ladder rungs (16) of the ladder parts (3) and in the region of the first ladder part (2) the upper ladder rungs (7). In order to create a transition between the lower cross rungs (16) and the upper ascending rungs (7), bridging rungs (8) are located on the associated lateral diagonal struts (6) at the longitudinal end of the first ladder part (2) between the upper chord (5) and lower chord (4). , as can be seen in detail in FIG. 3.

Am Obergurt (5) des ersten Leiterteils (2) sind ferner zwei seitliche hochschwenkbare Umgurtungen (10) vorgesehen, die einer Benutzungsperson in der hochgeschwenkten Lage als Handlauf dienen, wie dies ebenfalls im einzelnen der Fig.3 zu entnehmen ist. Die Umgurtung (10) gemäß Fig. 1 weist Verbindungsstreben (24) auf, deren Schwenkachse (11) parallel zu den oberen Längsholmen (20) verlaufen, mithin eine Umgurtung (10) zwischen einer versenkten Stellung im wesentlichen parallel zu den Aufstiegssprossen (7) gemäß Pfeil A der Fig. 1 und der im wesentlichen vertikalen Handlaufstellung geschwenkt werden kann. Demgegenüber besitzen die Verbindungsstreben (24) der Umgurtung (10) gemäß Fig. 3 Schwenkachsen (12), die in Richtung der Aufstiegssprossen (7) verlaufen, mithin die Umgurtung (10) nach Art eines Parallelograms gemäß Pfeil B in Längsrichtung des ersten Leiterteils (2) geschwenkt werden kann, und zwar aufgrund eines Kraftantriebs (13), z.B. einer Kolben-Zylinder-Anordnung bei einer hydraulisch betätigten Einheit, der zwischen Verbindungsstreben (24) und der Basis des ersten Leiterteils (2) angelenkt ist. Der Kraftantrieb (13) kann eine Dämpfungseinrichtung besitzen. In alternativer Ausführungsform kann die Verschwenkung des Handlaufs auch von Hand unterstützt durch Federn erfolgen. Zweckmäßigerweise ist ferner eine Arretierung (18) vorgesehen, die die Endlaufstellungen der Umgurtung (10) sichert.On the top chord (5) of the first ladder part (2) there are also two lateral swivel straps (10) which serve as a handrail for a user in the swiveled-up position, as can also be seen in detail in FIG. 1 has connecting struts (24), the pivot axis (11) of which run parallel to the upper longitudinal spars (20), and consequently a strap (10) between a retracted position essentially parallel to the ascending rungs (7) according to arrow A of FIG. 1 and the substantially vertical handrail position. In contrast, the connecting struts (24) of the belt (10) according to FIG. 3 have pivot axes (12) which ver in the direction of the steps (7) run, therefore the belt (10) in the manner of a parallelogram according to arrow B in the longitudinal direction of the first conductor part (2) can be pivoted, specifically because of a power drive (13), for example a piston-cylinder arrangement in a hydraulically operated unit, the is articulated between connecting struts (24) and the base of the first conductor part (2). The power drive (13) can have a damping device. In an alternative embodiment, the pivoting of the handrail can also be carried out by hand supported by springs. A lock (18) is also expediently provided, which secures the end positions of the belt (10).

Gemäß Fig. 2 ist gezeigt, daß die Erfindung trotz vorhandener Umgurtung (10) auch bei einem Betrieb der Leiteranordnung (1) mit einem Fahrstuhl (9) geeignet ist. Der Fahrstuhl (9) läuft hierbei bei eingeschwenkter Umgurtung (10) jeweils auf den Oberaurten (5) der einzelnen Leiterteile (2 bzw. 3).According to FIG. 2 it is shown that the present invention is suitable even when the ladder arrangement (1) is operated with an elevator (9) despite the existing belting (10). The elevator (9) runs with the belt (10) swung in, in each case on the upper aura (5) of the individual conductor parts (2 or 3).

Eine Umgurtung (10) weist vorteilhaft Verbindungsstreben (24) mit einer Höhe (h) Z 280 mm auf. Die bevorzugte lichte Breite (b) zwischen den hochgeschwenkten Umgurtungen (10) beträgt mindestens 450 mm (vgl. Fig. 4).A strap (10) advantageously has connecting struts (24) with a height (h) Z 280 mm. The preferred clear width (b) between the swung-up straps (10) is at least 450 mm (cf. FIG. 4).

Alle in der Beschreibung erwähnten und/oder in der Zeichnung dargestellten neuen Merkmale für sich oder in sinnvoller Kombination sind erfindungswesentlich, auch soweit sie in den Ansprüchen nicht ausdrücklich beansprucht sind.All of the new features mentioned in the description and / or shown in the drawing, individually or in a meaningful combination, are essential to the invention, even if they are not expressly claimed in the claims.

Claims (16)

1. Leiteranordnung (1) mit ausschiebbaren Leiterteilen (2,3), insbesondere Feuerwehrleiter, wobei die einzelnen Leiterteile (2,3) Untergurte (4) und Obergurte (5) besitzen, die mittels Streben (6) fest miteinander verbunden sind, dadurch gekennzeichnet, daß das erste, d.h. im ausgeschobenen Zustand der Anordnung (1) oberste bzw. vorderste Leiterteil (2) im Querschnitt als geschlossener Gitterträger ausgebildet ist, wobei Aufstiegssprossen (7) am Obergurt (5) des ersten Leiterteils (2) befestigt sind.1. ladder arrangement (1) with extendable ladder parts (2, 3), in particular fire brigade ladder, the individual ladder parts (2, 3) having lower chords (4) and upper chords (5) which are firmly connected to one another by means of struts (6), thereby characterized in that the first, ie When the arrangement (1) is pushed out, the uppermost or foremost ladder part (2) is designed in cross section as a closed lattice girder, with climbing rungs (7) being fastened to the top chord (5) of the first ladder part (2). 2. Leiteranordnung nach Anspruch 1, dadurch gekennzeichnet, daß sämtliche Obergurte (5) einschließlich des ersten Leiterteils (2) als Abstützschienen für einen Fahrstuhl (9) ausgebildet sind (Fig. 2).2. Ladder arrangement according to claim 1, characterized in that all the upper belts (5) including the first ladder part (2) are designed as support rails for an elevator (9) (Fig. 2). 3. Leiteranordnung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Obergurt (5) des ersten Leiterteils (2) zumindest eine seitliche hochschwenkbare Umgurtung (10) als Handlauf aufweist.3. Ladder arrangement according to claim 1 or 2, characterized in that the upper flange (5) of the first ladder part (2) has at least one lateral swivel strap (10) as a handrail. 4. Leiteranordnung nach Anspruch 3, dadurch gekennzeichnet, daß die Umgurtung (10) eine Schwenkachse (11) in Längsrichtung des ersten Leiterteils (2) besitzt und aus einer versenkten Stellung im wesentlichen parallel zu den Aufstiegssprossen (7) um ca. 90° nach oben und außen in die Handlaufstellung geschwenkt werden kann (Fig. 1).4. Ladder arrangement according to claim 3, characterized in that the strapping (10) has a pivot axis (11) in the longitudinal direction of the first ladder part (2) and from a lowered position substantially parallel to the climbing rungs (7) by about 90 ° can be pivoted above and outside into the handrail position (Fig. 1). 5. Leiteranordnung nach Anspruch 3, dadurch gekennzeichnet, daß die Umgurtung (10) mehrere Schwenkachsen (12) parallel zu den Aufstiegssprossen (7) besitzt und in Längsrichtung des ersten Leiterteils (2) aus einer versenkten sprossennahen Stellung in die hochgeschwenkte Handlauf-Stellung geschwenkt werden kann (Fig. 3).5. A ladder arrangement according to claim 3, characterized in that the strapping (10) has a plurality of pivot axes (12) parallel to the climbing rungs (7) and pivoted in the longitudinal direction of the first ladder part (2) from a recessed position close to the rung into the pivoted up handrail position can be (Fig. 3). 6. Leiteranordnung nach einem der Ansprüche 3 bis 5, dadurch gekennzeichnet, daß die hochschwenkbare Umgurtung (10) zumindest in ihrer hochgeschwenkten Handlauf-Stellung arretierbar ist.6. Ladder arrangement according to one of claims 3 to 5, characterized in that the swiveling strap (10) can be locked at least in its swiveled handrail position. 7. Leiteranordnung nach einem der Ansprüche 3 bis 6, dadurch gekennzeichnet, daß die hochschwenkbare Umgurtung (10) manuell unterstützt von Federn verschwenkt werden kann.7. Ladder arrangement according to one of claims 3 to 6, characterized in that the swiveling strap (10) can be pivoted manually supported by springs. 8. Leiteranordnung nach einem der Ansprüche 3 bis 6, dadurch gekennzeichnet, daß die hochschwenkbare Umgurtung (10) mittels Kraftantrieb (13) verschwenkt werden kann.8. Ladder arrangement according to one of claims 3 to 6, characterized in that the swivel-up strap (10) can be pivoted by means of a power drive (13). 9. Leiteranordnung nach Anspruch 8, dadurch gekennzeichnet, daß der Kraftantrieb (13) eine Dämpfungseinrichtung aufweist.9. A conductor arrangement according to claim 8, characterized in that the power drive (13) has a damping device. 10. Leiteranordnung nach Anspruch 8 oder 9, dadurch gekennzeichnet, daß der Kraftantrieb (13) durch die Ausziehbewegung des ersten Leiterteils (2) betätigbar ist.10. A conductor arrangement according to claim 8 or 9, characterized in that the power drive (13) can be actuated by the pull-out movement of the first conductor part (2). 11. Leiteranordnung nach einem der Ansprüche 8 bis 10, dadurch gekennzeichnet, daß der Kraftantrieb (13) vom Rettungskorb oder vom Hauptsteuerstand aus fernsteuerbar ist.11. Ladder arrangement according to one of claims 8 to 10, characterized in that the power drive (13) from the rescue cage or from the main steering position is remotely controllable. 12. Leiteranordnung nach einem der Ansprüche 1 bis 11, dadurch gekennzeichnet, daß der Untergurt (4) des ersten Leiterteils (2) zwei seitliche Längsholme (14) aufweist, die mittels Diagonalstreben (15) miteinander fest verbunden sind.12. A ladder arrangement according to one of claims 1 to 11, characterized in that the lower flange (4) of the first ladder part (2) has two lateral longitudinal bars (14) which are firmly connected to one another by means of diagonal struts (15). 13. Leiteranordnung nach einem der Ansprüche 1 bis 12, dadurch gekennzeichnet, daß die Längsholme (14) ein geschlossenes Querschnittsprofil besitzen.13. A conductor arrangement according to one of claims 1 to 12, characterized in that the longitudinal spars (14) have a closed cross-sectional profile. 14. Leiteranordnung nach einem der Ansprüche 1 bis 13, dadurch gekennzeichnet, daß die Längsholme (14) als Vierkant-Hochprofil ausgebildet sind.14. Ladder arrangement according to one of claims 1 to 13, characterized in that the longitudinal spars (14) are designed as a square high profile. 15. Leiteranordnung nach einem der Ansprüche 1 bis 14, dadurch gekennzeichnet, daß die Längsholme (14) als Wasserführungsrohr ausgebildet sind.15. A conductor arrangement according to one of claims 1 to 14, characterized in that the longitudinal bars (14) are designed as a water pipe. 16. Leiteranordnung nach einem der Ansprüche 1 bis 15, dadurch gekennzeichnet, daß am Längsende des ersten Leiterteils (2) zwischen Ober- und Untergurt Verbindungssprossen (8) an seitlichen Diagonalstreben (6) des ersten Leiterteils (2) angeordnet sind.16. Ladder arrangement according to one of claims 1 to 15, characterized in that at the longitudinal end of the first ladder part (2) between upper and lower flange connecting rungs (8) on lateral diagonal struts (6) of the first ladder part (2) are arranged.
EP87105390A 1986-04-26 1987-04-11 Ladder arrangement with extendable ladder sections Expired - Lifetime EP0243765B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87105390T ATE57236T1 (en) 1986-04-26 1987-04-11 LADDER ARRANGEMENT WITH PULL-OUT LADDER SECTION.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3614266 1986-04-26
DE3614266 1986-04-26
DE3625296 1986-07-25
DE19863625296 DE3625296A1 (en) 1986-04-26 1986-07-25 LADDER ARRANGEMENT WITH EXTENDABLE LADDER PARTS

Publications (3)

Publication Number Publication Date
EP0243765A1 true EP0243765A1 (en) 1987-11-04
EP0243765B1 EP0243765B1 (en) 1990-10-03
EP0243765B2 EP0243765B2 (en) 1997-06-18

Family

ID=25843274

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87105390A Expired - Lifetime EP0243765B2 (en) 1986-04-26 1987-04-11 Ladder arrangement with extendable ladder sections

Country Status (3)

Country Link
EP (1) EP0243765B2 (en)
JP (1) JPH0826738B2 (en)
DE (2) DE3625296A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0900910A1 (en) * 1997-09-05 1999-03-10 Iveco Magirus Ag Ladder assembly for fire brigade ladders
EP1803890A3 (en) * 2005-12-28 2008-06-25 CTE S.p.A. Particularly shaped package of ladders and carriage thereof
WO2013035094A1 (en) * 2011-09-11 2013-03-14 Omri Gilad Telescopic ladder and locking mechanism thereof
CN103670261A (en) * 2013-12-02 2014-03-26 长沙中联消防机械有限公司 Aerial ladder and firefighting aerial ladder vehicle

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI122068B (en) * 2009-02-26 2011-08-15 Bronto Skylift Oy Ab Ladder for ski lift, ski lift and method for using the ski lift ladder
WO2023181215A1 (en) * 2022-03-23 2023-09-28 株式会社モリタホールディングス Ladder and vehicle provided with said ladder

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FR528178A (en) * 1917-10-03 1921-11-08 Georges Edmond Bottin Telescopic piling ladder
US3083784A (en) * 1961-07-26 1963-04-02 Budd Co Movable stair assembly
FR2232667A1 (en) * 1973-06-07 1975-01-03 Kloeckner Humboldt Deutz Ag
DE3229533A1 (en) * 1982-08-07 1984-02-09 Rudat GmbH, 5620 Velbert Ladder to fit in the driver's cab on a monorail suspension railway in mining
GB2143885A (en) * 1983-07-23 1985-02-20 Iveco Magirus Fire-ladder with extendable ladder sections

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DE7120360U (en) * 1971-05-26 1971-09-02 Klaas T TRANSPORTABLE DEVICE USED AS LADDER OR MATERIAL ELEVATOR
DE2234194B2 (en) * 1972-07-12 1976-11-25 Kirsten, Erhard, 5509 Kell Turntable type firemen's ladder - has telescopically extendable crane jib upper side forming ladder with operator's platform at top

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR528178A (en) * 1917-10-03 1921-11-08 Georges Edmond Bottin Telescopic piling ladder
US3083784A (en) * 1961-07-26 1963-04-02 Budd Co Movable stair assembly
FR2232667A1 (en) * 1973-06-07 1975-01-03 Kloeckner Humboldt Deutz Ag
DE3229533A1 (en) * 1982-08-07 1984-02-09 Rudat GmbH, 5620 Velbert Ladder to fit in the driver's cab on a monorail suspension railway in mining
GB2143885A (en) * 1983-07-23 1985-02-20 Iveco Magirus Fire-ladder with extendable ladder sections

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0900910A1 (en) * 1997-09-05 1999-03-10 Iveco Magirus Ag Ladder assembly for fire brigade ladders
EP1803890A3 (en) * 2005-12-28 2008-06-25 CTE S.p.A. Particularly shaped package of ladders and carriage thereof
WO2013035094A1 (en) * 2011-09-11 2013-03-14 Omri Gilad Telescopic ladder and locking mechanism thereof
US9151114B2 (en) 2011-09-11 2015-10-06 Gilad Omri Telescopic ladder and locking mechanism thereof
CN103670261A (en) * 2013-12-02 2014-03-26 长沙中联消防机械有限公司 Aerial ladder and firefighting aerial ladder vehicle
CN103670261B (en) * 2013-12-02 2016-06-29 长沙中联消防机械有限公司 A kind of aerial ladder and fire control aerial ladder vehicle

Also Published As

Publication number Publication date
EP0243765B1 (en) 1990-10-03
DE3765297D1 (en) 1990-11-08
JPS62260986A (en) 1987-11-13
JPH0826738B2 (en) 1996-03-21
DE3625296A1 (en) 1987-10-29
EP0243765B2 (en) 1997-06-18

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