EP0996805A1 - Retractable extension for the guiding rail of a climbing guard - Google Patents

Retractable extension for the guiding rail of a climbing guard

Info

Publication number
EP0996805A1
EP0996805A1 EP98941354A EP98941354A EP0996805A1 EP 0996805 A1 EP0996805 A1 EP 0996805A1 EP 98941354 A EP98941354 A EP 98941354A EP 98941354 A EP98941354 A EP 98941354A EP 0996805 A1 EP0996805 A1 EP 0996805A1
Authority
EP
European Patent Office
Prior art keywords
guide rail
extension piece
tube
extension
guide
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
EP98941354A
Other languages
German (de)
French (fr)
Other versions
EP0996805B1 (en
Inventor
Klaus Meister
Thomas Keller
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.)
Honeywell Fall Protection Deutschland GmbH and Co KG
Original Assignee
Soell GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Soell GmbH filed Critical Soell GmbH
Publication of EP0996805A1 publication Critical patent/EP0996805A1/en
Application granted granted Critical
Publication of EP0996805B1 publication Critical patent/EP0996805B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C9/00—Ladders characterised by being permanently attached to fixed structures, e.g. fire escapes
    • E06C9/02—Ladders characterised by being permanently attached to fixed structures, e.g. fire escapes rigidly mounted
    • 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
    • E06C1/381—Ladders with rungs or treads attached only to one rigid longitudinal member
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C7/00—Component parts, supporting parts, or accessories
    • E06C7/18—Devices for preventing persons from falling
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C7/00—Component parts, supporting parts, or accessories
    • E06C7/18—Devices for preventing persons from falling
    • E06C7/181—Additional gripping devices, e.g. handrails
    • E06C7/182—Additional gripping devices, e.g. handrails situated at the top of the ladder
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C7/00—Component parts, supporting parts, or accessories
    • E06C7/18—Devices for preventing persons from falling
    • E06C7/186—Rail or rope for guiding a safety attachment, e.g. a fall arrest system
    • E06C7/187—Guiding rail

Definitions

  • the invention relates to a device for securely leaving and entering a climbing path when transitioning to a stage, the roof of a building, a pedestal or when leaving and entering a shaft.
  • the device has a guide rail for guiding a catching device, on which a person walking the ascent path can be secured, and an extension piece of the guide rail at the upper end of the guide rail.
  • a ladder with such a protrusion is known from DE-U-88 09 386.
  • the protrusion or extension is pivotable about a vertical axis at the top of the ladder.
  • This device is not suitable for skylights or manhole covers, since here the manhole cover or the skylight would collide with the overhang. In the case of manhole covers and skylights, the excess was previously kept separate and, when used, was attached to the upper end of the ladder.
  • the invention has for its object to provide a device for secure leaving a climbing path that is easy to use and does not require the plugging of a conductor extension.
  • this object is achieved in that the extension of the guide rail can be shifted between a first position and a second position, the Extension piece is arranged in the first position so that it does not protrude significantly above the guide rail, and in alignment with the guide rail continues in the second position upwards.
  • extension piece of the guide rail can be moved between two positions, it is no longer necessary to store or carry the extension piece separately.
  • the extension piece of the guide rail can be hinged to the upper end of the guide rail by means of a hinge.
  • the arrangement is particularly space-saving if the extension piece is mounted vertically displaceably behind the guide rail.
  • the extension piece is preferably designed to be pivotable about a vertical axis. For use, the extension piece is first pulled or pushed up to a stop and then rotated by 180 ° around the vertical axis and placed on the end of the fixed guide rail. Centering tabs on the upper end of the fixed guide rail prevent misalignment between the extension piece and the guide rail and ensure that the connection point with a safety gear is passed safely.
  • the extension piece In order to bring the extension piece into the first position or rest position, the extension piece is raised, pivoted through 180 ° and then lowered or lowered. In the first position, the extension piece is extremely space-saving behind the guide rail, i.e. generally stowed between the guide rail and the masonry to which the guide rail is attached.
  • the extension piece is preferably fastened to a tube which is vertically displaceable and rotatable about its longitudinal axis by two pairs of guide rollers.
  • the two pairs of guide rollers are preferably mounted on the upper end of the fixed guide rail.
  • the device according to the invention is particularly suitable for use in single-rail or central rail ladders with fall protection, as is known from DE-A-19 61 757.
  • the tube to which the extension piece is attached can be mounted parallel and at a short distance behind the central stringer by means of the guide rollers in such a central stringer ladder.
  • Figure 1 shows the guide rail with recessed extension piece.
  • Figure 2 shows the guide rail with the extension piece pulled out.
  • a guide rail 10 is attached to a structure B, e.g. the inner wall of a shaft, dowelled.
  • 10 steps 14 are attached to the back of the guide rail at regular intervals.
  • the guide rail 10 forms, together with the steps 14, a single rail or central rail ladder.
  • the guide rail 10 serves to guide a safety device (not shown in the drawing) which, together with the guide rail 10, is part of a fall protection device as described in DE-A-19 61 757, DE-A-27 36 037 and EP-A-0 168 021 is known.
  • a pipe 16 is mounted directly behind the guide rail 10 by two pairs of guide rollers 18, so that the tube 16 is displaceable parallel to the guide rail 10, ie it can be pulled out upwards and retracted downwards.
  • each pair of guide rollers 18 is mounted on a carrier plate 20 which is fastened on the rear side of the guide rail 10.
  • the guide rollers 18 sit on stub axles 22 which are perpendicular to the guide rail 10 and the steps 14. The distance between the guide rollers 18 of each pair is chosen so that the tube 16 is held between them with as little play as possible.
  • the surface of the guide rollers 18 is adapted to the circular circumference of the tube 16. In the range of movement of the tube 16, the brackets 12 are placed laterally in order to create space for the tube 16.
  • An extension piece 24 is fastened along the tube 16 by means of spacers 26.
  • the extension piece 24 is a section of the same profile rails as the guide rail 10.
  • the length of the spacers 26 is chosen so that the extension piece 24 is at the same distance from the tube 16, in which the tube 16 is mounted behind the guide rail. If the tube is therefore rotated by 180 ° about its longitudinal axis, the extension piece 24 is aligned with the guide rail 10.
  • At the upper end of the guide rail 10 are centering tabs 28, into which the extension piece 24 can be inserted, so that a twisting of the Extension piece 24 is prevented relative to the guide rail 10 and a catching device can safely pass through the connection point between the guide rail 10 and the extension piece 24.
  • the extension piece 24 does not extend over the entire length of the tube 16. Rather, a length is free at the lower end of the tube 16, which is slightly larger than the distance between the two pairs of guide rollers 18, so that the tube 16 always from both pairs of Guide rollers 18 is held, when the extension piece 24 is connected to the upper end of the guide rail 10.
  • the extension piece 24 can protrude slightly above the upper end of the tube 16 and a handle 30 is also provided at this point, which for the sake of simplicity can have the shape of a step 14. Otherwise, no further steps or handles are provided on the extension piece 24, since these would interfere with the sinking of the tube 16. In the lowered position of the tube 16, the handle 30 sits on the uppermost guide rollers 18. At the lower end of the tube 16 is a stop, not shown, which prevents the tube 16 from being pulled out completely.
  • the extension piece 24 can assume two stable positions. In the first position, it is countersunk, the upper end of the connecting piece 24 and also of the tube 16 not projecting over the upper end of the guide rail 10 or only protruding minimally. On the handle 30, the extension piece 24 can be pulled up from this first position. The tube 16 is guided through the guide rollers 18.
  • Spacers 26 are dimensioned so that they can run between them on the free side of the guide rollers 18.
  • an extension lock is provided at the upper end of the guide rail 10 and the extension piece 24, which prevents the safety device guided in the guide rail 10 and the extension piece 24 from being accidentally pulled out of its upper ends. If the fall protection system described is used, for example, for a sewer shaft, the extension piece 24 is pulled out after the shaft has been opened, pivoted through 180 ° and plugged onto the guide rail 10. The safety device is then inserted into the extension piece 24 at the top and the user can then safely descend into the shaft.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ladders (AREA)
  • Vehicle Step Arrangements And Article Storage (AREA)
  • Suspension Of Electric Lines Or Cables (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)
  • Tents Or Canopies (AREA)

Abstract

The device for allowing a person to safely step off from and onto a climbing track on a roof edge, a roof slope, a shaft opening or similar, includes a guide rail (10) for guiding a catching device to which a person using the climbing path can be secured, and an extension piece (24) of the guide rail (10). The extension piece (24) of the guide rail (10) can be moved between a first and a second position, the extension piece (24) being so arranged in the first position that it does not project above the guide rail (10), and being aligned in longitudinal direction with the guide rail in the second position. The extension piece (24) can be guided displaceable along the guide rail (10) and at a distance from the latter and can be swivelled by 180° in the final position, which corresponds to the second position, so that it is in alignment with the extension (10).

Description

Versenkbare Verlängerung der Führungsschiene einer Steigschutzvorrichtung Retractable extension of the guide rail of a fall arrest device
Die Erfindung betrifft eine Vorrichtung zum gesicherten Verlassen und Betreten eines Steigweges beim Übergang auf eine Bühne, das Dach eines Bauwerkes, ein Podest oder beim Verlassen und Einsteigen eines Schachtes. Die Vorrichtung weist eine Führungsschiene zur Führung einer Fangeinrichtung, an der eine den Steigweg gehende Person gesichert werden kann, und ein Verlängerungsstück der Führungsschiene am oberen Ende der Führungsschiene auf.The invention relates to a device for securely leaving and entering a climbing path when transitioning to a stage, the roof of a building, a pedestal or when leaving and entering a shaft. The device has a guide rail for guiding a catching device, on which a person walking the ascent path can be secured, and an extension piece of the guide rail at the upper end of the guide rail.
Die Unfallverhütungsvorschriften schreiben vor, daß beiThe accident prevention regulations stipulate that at
Leiterenden an Dachkanten, Dachaufstiegen oder Schächten ein Überstand der Leiter von 1 m vorhanden sein muß. Eine Leiter mit einem solchen Überstand ist aus DE-U-88 09 386 bekannt. Der Überstand oder die Verlängerung ist dabei verschwenkbar um eine vertikale Achse am oberen Ende der Leiter angeordnet. Für Dachluken oder Schachtabdeckungen ist diese Vorrichtung nicht geeignet, da hier die Schachtabdeckung bzw. das Dachfenster mit dem Überstand kollidieren würde. Bei Schachtabdeckungen und Dachluken wurde der Überstand bisher getrennt aufbewahrt und beim Einsatz auf das obere Ende der Leiter aufgesteckt.There must be a 1 m overhang of the ladder at the roof ends, roof stairs or shafts. A ladder with such a protrusion is known from DE-U-88 09 386. The protrusion or extension is pivotable about a vertical axis at the top of the ladder. This device is not suitable for skylights or manhole covers, since here the manhole cover or the skylight would collide with the overhang. In the case of manhole covers and skylights, the excess was previously kept separate and, when used, was attached to the upper end of the ladder.
Der Erfindung liegt die Aufgabe zugrunde, eine Vorrichtung zum gesicherten Verlassen eines Steigweges zu schaffen, die in der Handhabung einfach ist und nicht das Aufstecken einer Leiter- Verlängerung erfordert.The invention has for its object to provide a device for secure leaving a climbing path that is easy to use and does not require the plugging of a conductor extension.
Erfindungsgemäß wird diese Aufgabe dadurch gelöst, daß die Verlängerung der Führungsschiene zwischen einer ersten Position und einer zweiten Position verlagerbar ist, wobei das Verlängerungsstück in der ersten Position so angeordnet ist, daß sie nach oben nicht wesentlich über die Führungsschiene hinausragt, und in der zweiten Position mit der Führungsschiene fluchtend diese nach oben fortsetzt.According to the invention this object is achieved in that the extension of the guide rail can be shifted between a first position and a second position, the Extension piece is arranged in the first position so that it does not protrude significantly above the guide rail, and in alignment with the guide rail continues in the second position upwards.
Dadurch, daß das Verlängerungsstück der Führungsschiene zwischen zwei Positionen verlagerbar ist, ist es nicht mehr notwendig, das Verlängerungsstück separat aufzubewahren oder mitzuführen.Because the extension piece of the guide rail can be moved between two positions, it is no longer necessary to store or carry the extension piece separately.
Das Verlängerungsstück der Führungsschiene kann mittels eines Scharniers am oberen Ende der Führungsschiene angelenkt sein. Besonders platzsparend ist die Anordnung, wenn das Verlängerungsstück hinter der Führungsschiene vertikal verschiebbar gelagert ist. Zur Herstellung einer Verbindung mit dem oberen Ende der Führungsschiene ist das Verlängerungsstück vorzugsweise um eine vertikale Achse schwenkbar ausgebildet. Für den Einsatz wird das Verlängerungsstück dann zunächst bis zu einem Anschlag nach oben gezogen oder geschoben und dann um 180° um die vertikale Achse gedreht und auf das Ende der festmontierten Führungsschiene aufgesetzt. Mittels Zentrierungslaschen am oberen Ende der festangeordneten Führungsschiene wird eine Fehlfluchtung zwischen Verlängerungsstück und Führungsschiene verhindert und ein sicheres Durchfahren der Verbindungsstelle mit einer Fangeinrichtung gewährleistet.The extension piece of the guide rail can be hinged to the upper end of the guide rail by means of a hinge. The arrangement is particularly space-saving if the extension piece is mounted vertically displaceably behind the guide rail. To establish a connection to the upper end of the guide rail, the extension piece is preferably designed to be pivotable about a vertical axis. For use, the extension piece is first pulled or pushed up to a stop and then rotated by 180 ° around the vertical axis and placed on the end of the fixed guide rail. Centering tabs on the upper end of the fixed guide rail prevent misalignment between the extension piece and the guide rail and ensure that the connection point with a safety gear is passed safely.
Um das Verlängerungsstück in die erste Position oder Ruheposition zu bringen, wird das Verlängerungsstück angehoben, um 180° verschwenkt und dann heruntergelassen oder versenkt. In der ersten Position ist das Verlängerungsstück äußerst platzsparend hinter der Führungsschiene, d.h. im allgemeinen zwischen der Führungsschiene und dem Mauerwerk, an dem die Führungsschiene befestigt ist, verstaut.In order to bring the extension piece into the first position or rest position, the extension piece is raised, pivoted through 180 ° and then lowered or lowered. In the first position, the extension piece is extremely space-saving behind the guide rail, i.e. generally stowed between the guide rail and the masonry to which the guide rail is attached.
Vorzugsweise ist das Verlängerungsstück an einem Rohr befestigt, das durch zwei Paare von Führungsrollen vertikal verschiebbar und um seine Längsachse verdrehbar angeordnet ist. Die beiden Paare von Führungsrollen sind vorzugsweise am oberen Ende der festangeordneten Führungsschiene gelagert.The extension piece is preferably fastened to a tube which is vertically displaceable and rotatable about its longitudinal axis by two pairs of guide rollers. The two pairs of guide rollers are preferably mounted on the upper end of the fixed guide rail.
Die erfindungsgemäße Vorrichtung eignet sich insbesondere zum Einsatz bei Einholm- oder Mittelholmleitern mit Absturzsicherung, wie sie aus DE-A-19 61 757 bekannt ist. Das Rohr, an dem das Verlängerungsstück befestigt ist, kann bei einer solchen Mittelholmleiter parallel und in geringem Abstand hinter dem Mittelholm mittels der Führungsrollen gelagert sein.The device according to the invention is particularly suitable for use in single-rail or central rail ladders with fall protection, as is known from DE-A-19 61 757. The tube to which the extension piece is attached can be mounted parallel and at a short distance behind the central stringer by means of the guide rollers in such a central stringer ladder.
Ein Ausführungsbeispiel der Erfindung wird nachfolgend anhand der Zeichnung erläutert. Es zeigen:An embodiment of the invention is explained below with reference to the drawing. Show it:
Fig. 1 die Führungsschiene mit versenktem Verlängerungsstück;Figure 1 shows the guide rail with recessed extension piece.
Fig. 2 die Führungsschiene mit herausgezogenem Verlängerungsstück;Figure 2 shows the guide rail with the extension piece pulled out.
Fig. 3 die Führungsschiene mit herausgezogenem und nach einer Schwenkbewegung von 180° am oberen Ende der Führungsschiene eingestecktem Verlängerungsstück; und3 shows the guide rail with the extension piece pulled out and inserted after a pivoting movement of 180 ° at the upper end of the guide rail; and
Fig. 4 einen Schnitt 4-4 von Fig. 1.4 shows a section 4-4 of FIG. 1st
Bei dem in der Zeichnung dargestellten Ausführungsbeispiel ist eine Führungsschiene 10 mittels Bügel 12 an einem Bauwerk B, z.B. der Innenwand eines Schachtes, festgedübelt. In regelmäßigen Abständen sind auf der Rückseite der Führungsschiene 10 Tritte 14 befestigt. Die Führungsschiene 10 bildet zusammen mit den Tritten 14 eine Einholm- oder Mittelholmleiter.In the embodiment shown in the drawing, a guide rail 10 is attached to a structure B, e.g. the inner wall of a shaft, dowelled. 10 steps 14 are attached to the back of the guide rail at regular intervals. The guide rail 10 forms, together with the steps 14, a single rail or central rail ladder.
Zugleich dient die Führungsschiene 10 zur Führung einer in der Zeichnung nicht dargestellten Fangeinrichtung, die zusammen mit der Führungsschiene 10 Teil einer AbsturzSicherung ist, wie sie aus DE-A-19 61 757, DE-A-27 36 037 und EP-A-0 168 021 bekannt ist. In dem Raum zwischen der Führungsschiene 10 und dem Bauwerk B ist unmittelbar hinter der Führungsschiene 10 ein Rohr 16 durch zwei Paare von Führungsrollen 18 gelagert, so daß das Rohr 16 parallel zur Führungsschiene 10 verschiebbar ist, d.h. nach oben herausziehbar und nach unten versenkbar ist. Jedes Paar von Führungsrollen 18 ist dazu auf einer Trägerplatte 20 montiert, die auf der Rückseite der Führungsschiene 10 befestigt ist. Die Führungsrollen 18 sitzen auf Achsstummeln 22, die senkrecht zur Führungsschiene 10 und den Tritten 14 stehen. Der Abstand der Führungsrollen 18 jedes Paares ist so gewählt, daß das Rohr 16 mit möglichst geringem Spiel zwischen ihnen gehalten wird. Die Oberfläche der Führungsrollen 18 ist an den kreisförmigen Umfang des Rohrs 16 angepaßt. Im Bewegungsbereich des Rohrs 16 sind die Bügel 12 seitlich ange- setzt, um Raum für das Rohr 16 zu schaffen.At the same time, the guide rail 10 serves to guide a safety device (not shown in the drawing) which, together with the guide rail 10, is part of a fall protection device as described in DE-A-19 61 757, DE-A-27 36 037 and EP-A-0 168 021 is known. In the space between the guide rail 10 and the structure B, a pipe 16 is mounted directly behind the guide rail 10 by two pairs of guide rollers 18, so that the tube 16 is displaceable parallel to the guide rail 10, ie it can be pulled out upwards and retracted downwards. For this purpose, each pair of guide rollers 18 is mounted on a carrier plate 20 which is fastened on the rear side of the guide rail 10. The guide rollers 18 sit on stub axles 22 which are perpendicular to the guide rail 10 and the steps 14. The distance between the guide rollers 18 of each pair is chosen so that the tube 16 is held between them with as little play as possible. The surface of the guide rollers 18 is adapted to the circular circumference of the tube 16. In the range of movement of the tube 16, the brackets 12 are placed laterally in order to create space for the tube 16.
Längs des Rohres 16 ist ein Verlängerungsstück 24 mittels Distanzstücken 26 befestigt. Das Verlängerungsstück 24 ist ein Abschnitt der gleichen Profilschienen wie die Führungsschiene 10. Die Länge der Distanzstücke 26 ist so gewählt, daß das Verlängerungsstück 24 von dem Rohr 16 den gleichen Abstand hat, in dem das Rohr 16 hinter der Führungsschiene gelagert ist. Wenn das Rohr daher um seine Längsachse um 180° gedreht wird, so fluchtet das Verlängerungsstück 24 mit der Führungs- schiene 10. Am oberen Ende der Führungsschiene 10 sind Zentrierungslaschen 28 angebracht, in die das Verlängerungsstück 24 eingesetzt werden kann, so daß ein Verdrehen des Verlängerungsstückes 24 gegenüber der Führungsschiene 10 verhindert wird und eine Fangeinrichtung die Verbindungsstelle zwischen Führungsschiene 10 und Verlängerungsstück 24 sicher durchfahren kann.An extension piece 24 is fastened along the tube 16 by means of spacers 26. The extension piece 24 is a section of the same profile rails as the guide rail 10. The length of the spacers 26 is chosen so that the extension piece 24 is at the same distance from the tube 16, in which the tube 16 is mounted behind the guide rail. If the tube is therefore rotated by 180 ° about its longitudinal axis, the extension piece 24 is aligned with the guide rail 10. At the upper end of the guide rail 10 are centering tabs 28, into which the extension piece 24 can be inserted, so that a twisting of the Extension piece 24 is prevented relative to the guide rail 10 and a catching device can safely pass through the connection point between the guide rail 10 and the extension piece 24.
Das Verlängerungsstück 24 erstreckt sich nicht über die gesamte Länge des Rohrs 16. Am unteren Ende des Rohrs 16 ist vielmehr eine Länge frei, die etwas größer ist als der Abstand der beiden Paare von Führungsrollen 18, so daß das Rohr 16 immer von beiden Paaren von Führungsrollen 18 gehalten wird, wenn das Verlängerungsstück 24 mit dem oberen Ende der Führungsschiene 10 verbunden wird. Über das obere Ende des Rohrs 16 kann das Verlängerungsstück 24 etwas vorstehen und an dieser Stelle ist auch ein Haltegriff 30 vorgesehen, der der Ein- fachheit halber die Form eines Tritts 14 haben kann. Ansonsten sind an dem Verlängerungsstück 24 keine weiteren Tritte oder Haltegriffe vorgesehen, da diese beim Versenken des Rohrs 16 stören würden. In der versenkten Position des Rohrs 16 sitzt der Haltegriff 30 auf den obersten Führungsrollen 18 auf. Am unteren Ende des Rohrs 16 befindet sich ein nicht dargestellter Anschlag, der verhindert, daß das Rohr 16 vollständig herausgezogen werden kann.The extension piece 24 does not extend over the entire length of the tube 16. Rather, a length is free at the lower end of the tube 16, which is slightly larger than the distance between the two pairs of guide rollers 18, so that the tube 16 always from both pairs of Guide rollers 18 is held, when the extension piece 24 is connected to the upper end of the guide rail 10. The extension piece 24 can protrude slightly above the upper end of the tube 16 and a handle 30 is also provided at this point, which for the sake of simplicity can have the shape of a step 14. Otherwise, no further steps or handles are provided on the extension piece 24, since these would interfere with the sinking of the tube 16. In the lowered position of the tube 16, the handle 30 sits on the uppermost guide rollers 18. At the lower end of the tube 16 is a stop, not shown, which prevents the tube 16 from being pulled out completely.
Das Verlängerungsstück 24 kann zwei stabile Positionen ein- nehmen. In der ersten Position ist es versenkt, wobei das obere Ende des Verbindungsstücks 24 und auch des Rohrs 16 nicht oder nur minimal über das obere Ende der Führungsschiene 10 vorsteht. Am Haltegriff 30 kann das Verlängerungsstück 24 aus dieser ersten Position nach oben gezogen werden. Das Rohr 16 wird dabei durch die Führungsrollen 18 geführt. DieThe extension piece 24 can assume two stable positions. In the first position, it is countersunk, the upper end of the connecting piece 24 and also of the tube 16 not projecting over the upper end of the guide rail 10 or only protruding minimally. On the handle 30, the extension piece 24 can be pulled up from this first position. The tube 16 is guided through the guide rollers 18. The
Distanzstücke 26 sind so bemessen, daß sie auf der freien Seite der Führungsrollen 18 zwischen diesen hindurchlaufen können. Wenn das Verlängerungsstück 24 vollständig herausgezogen ist, wird es mit dem Rohr 16 um 180° um die Längsachse des Rohrs 16 verschwenkt und wird dann mittels der Zentrierungslaschen 28 auf das obere Ende der Führungsschiene 10 aufgesteckt. Zwischen den Führungsrollen 18 und dem Rohr 16 besteht ein ausreichendes Spiel, um das Rohr 16 zwischen den Führungsrollen 18 drehen zu können. In der zweiten, ausgefahrenen Po- sition steht das Verlängerungsstück 24 mindestens 1 m über die Kante K des Bauwerks B vor. Je nach dem Anwendungsfall des Steigschutzsystems ist am oberen Ende der Führungsschiene 10 und des Verlängerungsstücks 24 noch eine Ausfahrsicherung vorgesehen, die verhindert, daß die in der Führungsschiene 10 und dem Verlängerungsstück 24 geführte Fangeinrichtung versehentlich aus deren oberen Enden herausgezogen wird. Wird das beschriebene Absturzsicherungssystem beispielsweise für einen Kanalschacht verwendet, so wird nach dem Öffnen des Schachtes das Verlängerungsstück 24 herausgezogen, um 180° verschwenkt und auf die Führungsschiene 10 aufgesteckt. Danach wird die Fangeinrichtung oben in das Verlängerungsstück 24 eingesetzt und der Benutzer kann dann gesichert in den Schacht absteigen. Spacers 26 are dimensioned so that they can run between them on the free side of the guide rollers 18. When the extension piece 24 is completely pulled out, it is pivoted with the tube 16 by 180 ° about the longitudinal axis of the tube 16 and is then pushed onto the upper end of the guide rail 10 by means of the centering tabs 28. There is sufficient play between the guide rollers 18 and the tube 16 in order to be able to rotate the tube 16 between the guide rollers 18. In the second, extended position, the extension piece 24 projects at least 1 m beyond the edge K of the building B. Depending on the application of the fall arrest system, an extension lock is provided at the upper end of the guide rail 10 and the extension piece 24, which prevents the safety device guided in the guide rail 10 and the extension piece 24 from being accidentally pulled out of its upper ends. If the fall protection system described is used, for example, for a sewer shaft, the extension piece 24 is pulled out after the shaft has been opened, pivoted through 180 ° and plugged onto the guide rail 10. The safety device is then inserted into the extension piece 24 at the top and the user can then safely descend into the shaft.

Claims

PATENTANSPRÜCHE PATENT CLAIMS
1. Vorrichtung zum gesicherten Verlassen und Betreten eines Steigweges an einer Dachkante, einem Dachaufstieg, einer Schachtöffnung und dergleichen, mit einer Führungsschiene (10) zur Führung einer Fangeinrichtung, an der eine den Steigweg benutzende Person gesichert werden kann, und mit einem Verlängerungsstück (24) der Führungsschiene (10) , dadurch gekennzeichnet, daß das Verlängerungsstück (24) der Führungsschiene (10) zwischen einer ersten Position (Fig. 1) und einer zweiten Position (Fig. 3) verlagerbar ist, wobei das Verlängerungsstück (24) in der ersten Position so angeordnet ist, daß es nach oben nicht über die Führungsschiene (10) hinausragt, und in der zweiten Po- sition in Längsrichtung mit der Führungsschiene fluchtet.1.Device for securely leaving and entering a climbing path on a roof edge, a roof step, a shaft opening and the like, with a guide rail (10) for guiding a safety gear on which a person using the climbing path can be secured, and with an extension piece (24 ) of the guide rail (10), characterized in that the extension piece (24) of the guide rail (10) is displaceable between a first position (Fig. 1) and a second position (Fig. 3), the extension piece (24) in the First position is arranged so that it does not protrude upwards over the guide rail (10), and in the second position is aligned with the guide rail in the longitudinal direction.
2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß das Verlängerungsstück (24) verschiebbar längs der Führungsschiene (10) und im Abstand zu dieser geführt ist und daß das Verlängerungsstück (24) in der der zweiten2. Device according to claim 1, characterized in that the extension piece (24) is slidably guided along the guide rail (10) and at a distance therefrom and that the extension piece (24) in the second
Position entsprechenden Endlage um 180° verschwenkbar ist, so daß es mit der Verlängerung (10) fluchtet.Position corresponding end position is pivotable by 180 ° so that it is aligned with the extension (10).
3. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß das Verlängerungsstück (24) längs eines Rohres (16) angeordnet ist, das auf der Rückseite der Führungsschiene (10) zwischen Führungsrollen (18) läuft und dabei um seine Längsachse drehbar ist.3. Apparatus according to claim 2, characterized in that the extension piece (24) is arranged along a tube (16) which runs on the back of the guide rail (10) between guide rollers (18) and is rotatable about its longitudinal axis.
4. Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, daß das Verlängerungsstück (24) über Distanzstücke an dem Rohr (16) befestigt ist und die Führungsrollen (18) auf Achsstummeln sitzen, die nach hinten von der Führungsschiene (10) abstehen, wobei die Führungsrollen (18) das Rohr (16) nicht auf dem gesamten Umfang umfassen, so daß die Distanzstücke (26) zwischen den Führungsrollen (18) hindurchlaufen können. Vorrichtung nach einem der Ansprüche 1 bis 4 , dadurch gekennzeichnet, daß am oberen Ende des Verlängerungsstücks (24) ein Handgriff (30) vorgesehen ist. 4. The device according to claim 3, characterized in that the extension piece (24) is fixed via spacers on the tube (16) and the guide rollers (18) sit on stub axles which protrude rearward from the guide rail (10), the guide rollers (18) do not surround the tube (16) over the entire circumference, so that the spacers (26) can pass between the guide rollers (18). Device according to one of claims 1 to 4, characterized in that a handle (30) is provided at the upper end of the extension piece (24).
EP98941354A 1997-07-18 1998-07-17 Retractably extendable guide rail for supporting a safety harness Expired - Lifetime EP0996805B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE29712753U DE29712753U1 (en) 1997-07-18 1997-07-18 Retractable extension of the guide rail of a fall arrest device
DE29712753U 1997-07-18
PCT/EP1998/004460 WO1999004127A1 (en) 1997-07-18 1998-07-17 Retractable extension for the guiding rail of a climbing guard

Publications (2)

Publication Number Publication Date
EP0996805A1 true EP0996805A1 (en) 2000-05-03
EP0996805B1 EP0996805B1 (en) 2003-05-02

Family

ID=8043333

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98941354A Expired - Lifetime EP0996805B1 (en) 1997-07-18 1998-07-17 Retractably extendable guide rail for supporting a safety harness

Country Status (6)

Country Link
US (1) US6260662B1 (en)
EP (1) EP0996805B1 (en)
AT (1) ATE239166T1 (en)
DE (2) DE29712753U1 (en)
PL (1) PL337991A1 (en)
WO (1) WO1999004127A1 (en)

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Publication number Priority date Publication date Assignee Title
FR2783012B1 (en) * 1998-09-04 2000-10-27 Bernard Clavel PORTABLE SUPPORT STRUCTURE USED AS A LADDER OR STEPLADDER
US8261880B1 (en) * 2007-03-09 2012-09-11 Hop Daryl J Step ladder apparatus
DE102012204643A1 (en) * 2012-03-22 2013-09-26 Logaer Maschinenbau Gmbh Steigsperrensystem for ladders
US8875839B1 (en) 2012-06-28 2014-11-04 William Licea Fall restraint system for telescoping ladders
US9663990B2 (en) * 2014-03-04 2017-05-30 Mark Allen Kramer Ladder assist

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Title
See references of WO9904127A1 *

Also Published As

Publication number Publication date
WO1999004127A1 (en) 1999-01-28
US6260662B1 (en) 2001-07-17
DE59808184D1 (en) 2003-06-05
PL337991A1 (en) 2000-09-25
EP0996805B1 (en) 2003-05-02
ATE239166T1 (en) 2003-05-15
DE29712753U1 (en) 1997-09-11

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