EP1181431B1 - Ladder comprising a floorboard - Google Patents

Ladder comprising a floorboard Download PDF

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Publication number
EP1181431B1
EP1181431B1 EP00938543A EP00938543A EP1181431B1 EP 1181431 B1 EP1181431 B1 EP 1181431B1 EP 00938543 A EP00938543 A EP 00938543A EP 00938543 A EP00938543 A EP 00938543A EP 1181431 B1 EP1181431 B1 EP 1181431B1
Authority
EP
European Patent Office
Prior art keywords
ladder
length
rungs
halves
locking
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP00938543A
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German (de)
French (fr)
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EP1181431A1 (en
Inventor
Horst Laug
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Individual
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Individual
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Filing date
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Publication of EP1181431A1 publication Critical patent/EP1181431A1/en
Application granted granted Critical
Publication of EP1181431B1 publication Critical patent/EP1181431B1/en
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Expired - Lifetime legal-status Critical Current

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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
    • E06C1/39—Ladders having platforms; Ladders changeable into platforms
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G1/00—Scaffolds primarily resting on the ground
    • E04G1/28—Scaffolds primarily resting on the ground designed to provide support only at a low height
    • E04G1/30—Ladder scaffolds

Definitions

  • the invention relates to a ladder with a plank, the ladder being adjustable in length is formed and on the outer longitudinal sides of retractable and lockable support bars which is infinitely adjustable in length and by infinitely adjustable pull and Pressure struts can be swung out and locked in all directions.
  • a generic device is known from utility model DE 298 21 356 U1, in the stabilization supports for fixed and single ladders are described. Tension and compression struts are parallel in pairs on the long sides of a stabilizing support Folded in and out, hinged and designed to be lockable.
  • the object of the invention is to further develop the known ladder so that they can be used as a conventional ladder as well as a work floor or work platform can be used.
  • an extendable single ladder which is converted into a fixed ladder by means of support bars that are positioned laterally and can be swung out can be, and a length-adjustable work platform by two Separately foldable and foldable plate halves, which are articulated to the rung are united.
  • the ladder board is horizontal, even on steps in curved stairs to hang up safely with one side, made possible by the different adjustable handlebar ends. The other side can be adjusted by the continuously adjustable Adjust the support bars to the stair heights.
  • the ladder board is particularly easy to transport or to be stored, but at any time as a single ladder, step ladder or stair-climbing work platform ready for use.
  • the support bars can be replaced at the lower ends with replaceable rubber feet be provided with brake rollers or support foot plates with earth tips are.
  • Plate halves 1 On a ladder there are two juxtaposed on one surface side Plate halves 1. Each are on an outer long side of a plate half Hinges 5 arranged, which are connected to the ladder rungs on the underside.
  • the plate halves 1 there are preferably two bores through which Locking bolt 3 performed with segment washers 12 and from one side with a mother 11 are secured.
  • the length of the bolts is only as long as to reach over the segment disc 12 over the outside of the ladder stile is necessary to open the plate halves 1 Lock condition.
  • the segment disc 12 always ensures due to the one-sided center of gravity for a secure hold of an opened panel half 1 when using the ladder board as an upright ladder or step ladder, even if the distance between Fastening nut and segment niche inside is larger than the outside of the ladder stile.
  • the one-sided weight of the segment disc 12 and the associated rotation according to gravity requires a sufficient width or chord length the segmented disc, around the unfolded panel halves in any application situation to lock the ladder securely.
  • the locking washer 3 with the segment washer can be used for the segment washer and the upper side of the spar 12 returned and the plate half 1 can be folded.
  • Both ladder rails of the ladder are extendable and adjustable on both sides Ladder stiles 4 designed around uneven support widths (e.g. stair curvatures) safe to reach regardless of the front or back of the Ladder.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Ladders (AREA)
  • Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)

Abstract

A length-adjustable ladder functioning as a telescopic lean-to ladder, a free-standing stepladder, and as a platform is described. The ladder includes stringers, ladder rungs fastened between the stringers, and supports connected to the stringers. The supports can be length-adjusted in a stepless manner. The supports can be swung in and arrested on the outer longitudinal sides of the stringers. A floor board assembly formed of two panel halves corresponding to a length of the ladder and has hinges is disposed on the two panel halves. The two panel halves each have a longitudinal side fastened, in an articulated manner on the ladder rungs by the hinges. Arresting elements are provided. Each of the arresting elements run through one of the two panel halves. The two panel halves are movable into a swung-up panel position wherein the two panel halves are arrested by the arresting elements.

Description

Die Erfindung betrifft eine Leiter mit einer Diele, wobei die Leiter längenverstellbar ausgebildet ist und an den äußeren Längsseiten einklapp- und arretierbare Stützholme aufweist, die stufenlos in der Länge verstellbar und durch stufenlos einstellbare Zugund Druckstreben in alle Richtungen ausschwenkbar und feststellbar ausgebildet sind.The invention relates to a ladder with a plank, the ladder being adjustable in length is formed and on the outer longitudinal sides of retractable and lockable support bars which is infinitely adjustable in length and by infinitely adjustable pull and Pressure struts can be swung out and locked in all directions.

Eine gattungsgemäße Vorrichtung ist aus dem Gebrauchsmuster DE 298 21 356 U1 bekannt, in dem Stabilisierungsstützen für Bock- und Anlegeleitern beschrieben werden. Zug- und Druckstreben sind paarweise parallel an die Längsseiten einer Stabilisierungsstütze ein- und ausklappbar gelenkig befestigt und arretierbar ausgestaltet.A generic device is known from utility model DE 298 21 356 U1, in the stabilization supports for fixed and single ladders are described. Tension and compression struts are parallel in pairs on the long sides of a stabilizing support Folded in and out, hinged and designed to be lockable.

Aus der DE 197 14 431 A1 ist eine Leiter mit verbreiterten Sprossen bekannt, welche um ihre Achse zwischen den Holmen gekippt werden können. Damit ist eine Position der Sprossen möglich, die einer üblichen Leiter entspricht, während in einer umgeklappten Position die Ränder der Sprossen aneinander stoßen und somit eine durchgehende geschlossene Fläche bilden.DE 197 14 431 A1 discloses a ladder with widened rungs, which can be tilted about their axis between the bars. That is a position the rungs possible, which corresponds to a usual ladder, while in a folded down Position the edges of the rungs meet and thus a continuous form a closed surface.

Arbeitspodeste oder Mehrzweckdielen werden als schnell aufzubauende Kleingerüste eingesetzt.Work platforms or multi-purpose planks are quickly assembled as small scaffolds used.

Meistens werden zur Zeit Arbeitspodeste aus zwei aufgestellten Bockleitern mit dazwischen aufgelegten Brettern hergestellt.Mostly, work platforms are currently made up of two fixed ladders in between manufactured boards.

Derartige Konstruktionen erfordern einen erheblichen Herstellungsaufwand, und die aus einzelnen Brettern und separaten Leitern provisorisch hergestellten Arbeitspodeste sind durch die Einzelteile, die separat gelagert und transportiert werden und nur eingeschränkt in Treppenbereichen einsetzbar sind, unhandlich.Such constructions require considerable manufacturing effort, and that from individual boards and separate ladders are provisionally manufactured work platforms due to the individual parts that are stored and transported separately and only to a limited extent can be used in stair areas, unwieldy.

Die Aufgabe der Erfindung besteht darin, die bekannte Leiter so weiterzuentwickeln, daß sie sowohl als herkömmliche Leiter als auch als Arbeitsdiele oder Arbeitspodest benutzt werden kann. The object of the invention is to further develop the known ladder so that they can be used as a conventional ladder as well as a work floor or work platform can be used.

Diese Aufgabe wird erfindungsgemäß durch Anspruch 1 gelöst. Dadurch kann im aufgeklappten Zustand die Leiter in herkömmlicher Weise und im eingeklappten Zustand als Arbeitsdiele bzw. Arbeitspodest verwendet werden.This object is achieved by claim 1. This can be opened Condition the ladder in a conventional manner and when folded can be used as a work floorboard or work platform.

Mit der erfindungsgemäßen Leiter wird in einem Gerät eine ausschiebbare Anlegeleiter, die durch seitlich positionierte und ausschwenkbare Abstützholme zur Bockleiter umgewandelt werden kann, und eine längenverstellbare Arbeitsbühne durch jeweils zwei getrennt ein- und aufklappbare Plattenhälften, die gelenkig an den Leitersprossen befestigt sind, vereint. Zusätzlich ist die Leiterdiele waagerecht auch auf Stufen in Treppenkrümmungen sicher mit einer Seite aufzulegen, ermöglicht durch die unterschiedlich längenverstellbaren Leiterholmenden. Die andere Seite läßt sich durch die stufenlos verstellbaren Abstützholme den Treppenstufenhöhen anpassen.With the ladder according to the invention, an extendable single ladder, which is converted into a fixed ladder by means of support bars that are positioned laterally and can be swung out can be, and a length-adjustable work platform by two Separately foldable and foldable plate halves, which are articulated to the rung are united. In addition, the ladder board is horizontal, even on steps in curved stairs to hang up safely with one side, made possible by the different adjustable handlebar ends. The other side can be adjusted by the continuously adjustable Adjust the support bars to the stair heights.

Mit eingeklappten Plattenhälften und an den Außenseiten der Leiterdiele eingeklappten und arretierten Abstützholmen ist die Leiterdiele besonders einfach zu transportieren oder zu lagern, aber jederzeit als Anlegeleiter, Bockleiter oder treppengängige Arbeitsbühne einsatzbereit.With the panel halves folded in and folded in on the outside of the ladder board and locked support bars, the ladder board is particularly easy to transport or to be stored, but at any time as a single ladder, step ladder or stair-climbing work platform ready for use.

Die Abstützholme können an den unteren Enden mit auswechselbaren Gummifüßen versehen sein, die mit Bremsrollen oder Stützfußplatten mit Erdspitzen ausgestattet sind.The support bars can be replaced at the lower ends with replaceable rubber feet be provided with brake rollers or support foot plates with earth tips are.

Vorteilhafte Weiterbildungen der Erfindung ergeben sich aus den Unteransprüchen.Advantageous developments of the invention result from the subclaims.

Weitere Vorteile und Merkmale der Erfindung ergeben sich aus der nachfolgenden Beschreibung von Ausführungsbeispielen, wobei auf Zeichnungen Bezug genommen wird, in der

Fig. 1
die Leiter mit Diele mit eingeklappten Plattenhälften und ausgeschwenkten Abstützholmen zeigt,
Fig. 2
die Leiter mit Diele mit aufgeklappten Plattenhälften zeigt
Fig. 3
die Leiter mit Diele im Querschnitt mit einer aufgeklappten und einer eingeklappten Plattenhälfte zeigt,
Fig. 4
einen Arretierungsbolzen mit Segmentscheibe und Druckfeder zeigt, und
Fig. 5
im Längsschnitt eine Leiter mit Diele mit eingeklappten Plattenhälften zeigt, durch deren schlitzförmigen Durchbruch ein Sprossenhaken durchgeführt und an der Unterseite in eine Leitersprosse eingehakt ist.
Further advantages and features of the invention result from the following description of exemplary embodiments, reference being made to drawings in which
Fig. 1
shows the ladder with the board with the panels halved and the support bars swung out,
Fig. 2
shows the ladder with the board with the panel halves opened
Fig. 3
the ladder with plank shows in cross-section with one half of the plate opened and one folded in,
Fig. 4
shows a locking bolt with segment washer and compression spring, and
Fig. 5
shows in longitudinal section a ladder with a plank with folded-in panel halves, through the slot-shaped opening of which a rung hook is inserted and hooked into a ladder rung on the underside.

Auf einer Leiter befinden sich auf einer Oberflächenseite zwei nebeneinander aufgelegte Plattenhälften 1. Je an einer äußeren Längsseite einer Platienhälfte sind Scharniere 5 angeordnet, die mit den unterseitigen Leitersprossen verbunden sind.On a ladder there are two juxtaposed on one surface side Plate halves 1. Each are on an outer long side of a plate half Hinges 5 arranged, which are connected to the ladder rungs on the underside.

In den Plattenhälften 1 befinden sich vorzugsweise je zwei Bohrungen, durch die Arretierungsbolzen 3 mit Segmentscheiben 12 durchgeführt und von einer Seite mit einer Mutter 11 gesichert sind.In the plate halves 1 there are preferably two bores through which Locking bolt 3 performed with segment washers 12 and from one side with a mother 11 are secured.

Die Länge der Bolzen ist nur so lang bemessen, wie zum Übergreifen der Segmentscheibe 12 über die Leiterholmaußenseite nötig ist, um die Plattenhälften 1 im aufgeklappten Zustand zu arretieren. The length of the bolts is only as long as to reach over the segment disc 12 over the outside of the ladder stile is necessary to open the plate halves 1 Lock condition.

Dabei sorgt die Segmentscheibe 12 auf Grund des einseitigen Schwerpunktes stets für ein sicheres Halten einer aufgeklappten Plattenhälfte 1 beim Einsatz der Leiterdiele als aufgerichtete Anlegeleiter oder Bockleiter, auch wenn die Distanz zwischen Befestigungsmutter und Segmentsnischeibeninnenseite größer ist als zu der Leiterholmaußenseite.The segment disc 12 always ensures due to the one-sided center of gravity for a secure hold of an opened panel half 1 when using the ladder board as an upright ladder or step ladder, even if the distance between Fastening nut and segment niche inside is larger than the outside of the ladder stile.

Das einseitige Gewicht der Segmentscheibe 12 und die damit verbundene Drehung entsprechend der Schwerkraft erfordert eine ausreichende Breite bzw. Sehnenlänge der Segmentscheibe, um die aufgeklappten Plattenhälften in jeder Anlegesituation der Leiter sicher zu arretieren.The one-sided weight of the segment disc 12 and the associated rotation according to gravity requires a sufficient width or chord length the segmented disc, around the unfolded panel halves in any application situation to lock the ladder securely.

Durch Verdrehen der Segmentscheibe bis zur Parallelität zwischen Sehnenseite der Segmentscheibe und Leiterholmoberseite kann der Arrtierungsbolzen 3 mit der Segmentscheibe 12 zurückgeführt und die Plattenhälfte 1 eingeklappt werden.By turning the segment disc to the parallelism between the tendon side The locking washer 3 with the segment washer can be used for the segment washer and the upper side of the spar 12 returned and the plate half 1 can be folded.

Beide Leiterholme der Leiter sind je beidseitig mit ausschiebbaren, längenverstellbaren Leiterholmen 4 ausgebildet um auch ungleiche Auflagerbreiten (z.B. Treppenkrümmungen) sicher zu erreichen, unabhängig von der Vorder- oder Hinterseite der Leiter.Both ladder rails of the ladder are extendable and adjustable on both sides Ladder stiles 4 designed around uneven support widths (e.g. stair curvatures) safe to reach regardless of the front or back of the Ladder.

An jeder äußeren Langsseite der Leiter ist mindestens ein ausschwenkbarer und stufenlos in der Länge verstellbarer, mit ebenfalls stufenlos einstellbaren Zug/Druckstreben gesicherter Abstützholm 6 gelenkig angeordnet, der gemeinsam mit den Zug/Druckstreben parallel zur Leiteraußenseite eingeklappt und arretiert werden kann. On each outer long side of the ladder there is at least one swiveling and stepless adjustable in length, also infinitely adjustable Train / pressure struts secured support bar 6 articulated, the common with the tension / compression struts folded in and locked parallel to the outside of the conductor can be.

Unterseitig der Leiter befinden sich U-förmig ausgebildete Einhakvorrichtungen, um ein Einhängen in Sprossen einer zweiten Leiter zu ermöglichen.On the underside of the conductor there are U-shaped hooking devices in order to to allow hooking into rungs of a second ladder.

Am Leiterkopf sind Führungsprofile 8 angebracht, die zur Innenseite der Leiter so weit vorspringen, daß eine zweite Leiter auch mit aufgeklappten Plattenhälften 1 uneingeschränkt ein- und ausgeschoben werden kann.At the head of the guide profiles 8 are attached, so to the inside of the ladder protrude far that a second ladder even with the panel halves 1 can be pushed in and out without restriction.

Um die im unteren Leiterbereich der zweiten Leiter angeordneten Sprossenhaken 9 an die jeweils entsprechende Sprosse der unterseitigen ersten Leiter auch mit eingeklappten Plattenhälften 1 einhaken zu können, weisen die Plattenhälften 1 der ersten Leiter im Sprossenabstand eingebrachte schlitzförmige Durchbrüche 10 auf, durch die die Sprossenhaken 9 der zweiten Leiter durchgeführt und an die Sprossen der ersten Leiter eingehakt werden. Around the rung hooks 9 arranged in the lower conductor area of the second conductor to the corresponding rung of the underside of the first ladder, also with the folded one To be able to hook plate halves 1 have the plate halves 1 of the first Ladder in the rung spacing introduced slot-shaped openings 10 through which carried out the rung hooks 9 of the second ladder and attached to the rungs of the be hooked to the first conductor.

Aufstellung der Bezugszeichen:List of reference symbols:

11
klappbare Plattenhälftenfoldable panel halves
22
Leiterladder
33
Arretierungsbolzenlocking bolt
44
ausschiebbare Leiterholmeextendable ladder stiles
55
Scharnierehinges
66
ausschwenkbare, längenverstellbare Abstützholmeswing-out, length-adjustable support bars
77
Druckfedercompression spring
88th
Führungsprofileguide profiles
99
Sprossenhakenrung hooks
1010
schlitzförmige Durchbrücheslit-shaped openings
1111
Befestigungsmutterfixing nut
1212
Segmentscheibesegment disc

Claims (5)

  1. Ladder, with a floor, wherein the ladder has ladder rungs, is constructed to be adjustable in length and can also be used as an extensible prop-up ladder or as a freestanding stepladder and has at the outer longitudinal sides support posts (6), which can be folded in and locked, are steplessly adjustable in length and are constructed to be pivotable out in all directions and fixable by steplessly adjustable tension and compression struts, characterised in that the floor consists of two plate halves (1) corresponding with the length of the ladder, that these are each pivotably fastened at the outer longitudinal side thereof at the ladder rungs by means of hinges (5), that a locking of the unfolded plate halves (1) is effected by means of locking elements, particularly locking pins (3), which are equipped with compression springs (7) between fastening nut (11) and plate-half underside and with a rotatable segmental disc (12) engaging over the ladder post outer side, that the plate half (1) has slot-shaped passages (10) which correspond with the rung spacings and through which the rung hooks (9) of a further ladder (2) can be passed in order to hook this into the rungs of the first ladder (2), and that the ladder (2) is equipped at the upper end with guide profile members (8) which project towards the side on which the floor is mounted.
  2. Ladder according to claim 1, characterised in that the ladder post ends have extensible additional ladder posts (4).
  3. Ladder according to claim 1 or 2, characterised in that the support posts (6) are provided at the lower ends with exchangeable rubber feet which are equipped with brake rollers or with support foot plates with ground spikes.
  4. Ladder according to one of claims 1 to 3, characterised in that, for locking of the unfolded plate half (1), hooks which enable fixing of the unfolded plate halves (1) and which are pivotably fastened to the ladder post are mounted as locking elements.
  5. Ladder according to one of claims 1 to 4, characterised in that U-shaped hooking-in devices are mounted at the underside of the ladder in order to be able to securely place this on other constructional members.
EP00938543A 1999-05-22 2000-05-04 Ladder comprising a floorboard Expired - Lifetime EP1181431B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19923765A DE19923765C2 (en) 1999-05-22 1999-05-22 Ladder with hallway
DE19923765 1999-05-22
PCT/DE2000/001486 WO2000071850A1 (en) 1999-05-22 2000-05-04 Ladder comprising a floorboard

Publications (2)

Publication Number Publication Date
EP1181431A1 EP1181431A1 (en) 2002-02-27
EP1181431B1 true EP1181431B1 (en) 2003-04-16

Family

ID=7909024

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00938543A Expired - Lifetime EP1181431B1 (en) 1999-05-22 2000-05-04 Ladder comprising a floorboard

Country Status (6)

Country Link
US (1) US6543579B2 (en)
EP (1) EP1181431B1 (en)
AT (1) ATE237735T1 (en)
AU (1) AU5389300A (en)
DE (2) DE19923765C2 (en)
WO (1) WO2000071850A1 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10254033A1 (en) * 2002-11-20 2004-06-03 Wilhelm Layher Vermögensverwaltungs-Gmbh Building construction scaffolding platform is a shallow sheet metal upturned box with small and elongated holes in sidewalls
NL1022406C2 (en) 2003-01-16 2004-07-19 Pieter Van Dijk Ladder with cover for e.g. use by fire brigade, provided with cover having non round cross section with corners
US9734222B1 (en) 2004-04-06 2017-08-15 Jpmorgan Chase Bank, N.A. Methods and systems for using script files to obtain, format and transport data
IES20050206A2 (en) * 2005-04-08 2006-10-18 Declan Gallagher Combined stepladder and platform
CN102151097A (en) * 2011-01-28 2011-08-17 张春平 Wall mounting type chopping board
US11598101B2 (en) * 2018-12-17 2023-03-07 New Century Buildings L.L.C. Vehicle service pit
US10557306B1 (en) * 2019-02-20 2020-02-11 Roddrick Barley Safety pool ladder
JP7099423B2 (en) * 2019-09-13 2022-07-12 三菱電機株式会社 Ladder device
CN111140021B (en) * 2020-01-06 2021-10-22 安徽滁鑫市政工程有限公司 Double-door type building construction beam bearing frame
CN115404937B (en) * 2022-08-31 2023-05-30 华能伊敏煤电有限责任公司 Anti-skid inclined ladder with storage function

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2089873A (en) * 1980-12-23 1982-06-30 Wickramasuriya Damasius Benett Convertible ladder
FR2582702B1 (en) * 1985-06-03 1987-08-07 Kernst Henri SCAFFOLDING FLOOR PROVIDED WITH A REMOVABLE TWO-LEAF ACCESS DOOR
US5332062A (en) * 1991-03-12 1994-07-26 Paul Revere Simplified scaffold ladder
DE9217419U1 (en) * 1992-07-23 1993-03-25 Krause-Werk Gmbh & Co Kg, 6320 Alsfeld Step plate for ladders
US5626205A (en) * 1994-11-18 1997-05-06 Martin; Richard C. Portable work platform
DE19714431C2 (en) * 1997-04-08 2002-03-28 Horst Laug Multi-purpose work trestle
DE29821356U1 (en) * 1998-11-30 1999-03-04 Laug, Horst, 49809 Lingen Stabilizing supports for fixed and single ladders

Also Published As

Publication number Publication date
DE19923765A1 (en) 1999-11-25
DE50001804D1 (en) 2003-05-22
EP1181431A1 (en) 2002-02-27
ATE237735T1 (en) 2003-05-15
US6543579B2 (en) 2003-04-08
DE19923765C2 (en) 2001-05-31
US20020139612A1 (en) 2002-10-03
AU5389300A (en) 2000-12-12
WO2000071850A1 (en) 2000-11-30

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