EP1181431A1 - Ladder comprising a floorboard - Google Patents

Ladder comprising a floorboard

Info

Publication number
EP1181431A1
EP1181431A1 EP00938543A EP00938543A EP1181431A1 EP 1181431 A1 EP1181431 A1 EP 1181431A1 EP 00938543 A EP00938543 A EP 00938543A EP 00938543 A EP00938543 A EP 00938543A EP 1181431 A1 EP1181431 A1 EP 1181431A1
Authority
EP
European Patent Office
Prior art keywords
ladder
length
halves
plank
locked
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
EP00938543A
Other languages
German (de)
French (fr)
Other versions
EP1181431B1 (en
Inventor
Horst Laug
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP1181431A1 publication Critical patent/EP1181431A1/en
Application granted granted Critical
Publication of EP1181431B1 publication Critical patent/EP1181431B1/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
    • 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 and having retractable and lockable support bars on the outer longitudinal sides, which are infinitely adjustable in length and designed to be pivotable in all directions and lockable by means of continuously adjustable tension and compression struts are.
  • a generic device is known from utility model DE 298 21 356 U1, in which stabilizing supports for fixed-ladder and mooring lines are described. Tension and compression struts are articulated in pairs in parallel on the long sides of a stabilizing support and can be folded out and folded out and locked.
  • the object of the invention is to develop the known ladder so that it can be used both as a conventional ladder and as a work floor or work platform.
  • the ladder can be used in a conventional manner in the opened state and as a work floorboard or work platform in the folded state.
  • a push-out contact ladder which can be converted into a fixed ladder by means of laterally positioned and swing-out support bars, and a length-adjustable working platform are combined in each case by two plate halves that can be folded in and out separately and are hinged to the ladder rungs .
  • the ladder board can be placed horizontally on one side, even on steps in stair curvatures, made possible by the differently adjustable ladder bar ends. The other side can be adjusted to the stair heights using the continuously adjustable support bars.
  • the ladder board is particularly easy to transpose or store, but is always ready for use as a single ladder, step ladder or stair-climbing work platform.
  • Fig. 2 shows the ladder with a board with the panel halves opened
  • Fig. 4 shows a locking bolt with segment washer and compression spring
  • Fig. 5 shows in longitudinal section a ladder with a plank with the panel halves folded in, through the slot-shaped opening of which a rung hook is inserted and hooked into a ladder rung on the underside.
  • Hinges 5 are arranged on each outer longitudinal side of a platter half and are connected to the ladder rungs on the underside.
  • each of the plate halves 1 There are preferably two bores in each of the plate halves 1, through which locking bolts 3 are carried out with segment disks 12 and are secured from one side with a nut 11.
  • the length of the bolts is dimensioned only as long as is necessary to reach over the segment disc 12 over the outside of the ladder rail in order to lock the plate halves 1 in the opened state. Due to the one-sided center of gravity, the segment disk 12 always ensures that an opened panel half 1 is held securely when the ladder board is used as an erected single ladder or fixed ladder, even if the distance between the fastening nut and the inside of the segment disk is greater than the outside of the ladder rail.
  • the one-sided weight of the segment disc 12 and the associated rotation according to gravity requires a sufficient width or chord length of the segment disc in order to securely lock the unfolded plate halves in any contact situation of the conductors.
  • the locking bolt 3 By rotating the segment disc to the parallelism between the chord side of the segment disc and the upper side of the spar, the locking bolt 3 can be returned with the segment disc 12 and the plate half 1 can be folded in.
  • Length-adjustable ladder bars 4 are designed to reliably achieve uneven support widths (e.g. stair curvatures), regardless of the front or rear of the ladder.
  • At least one support bar 6 which can be swung out and infinitely adjustable in length and is also secured with infinitely adjustable tension / compression struts, is articulated and can be folded in and locked together with the tension / compression struts parallel to the exterior of the ladder.
  • the plate halves 1 of the first ladder In order to be able to hook the rung hooks 9 arranged in the lower ladder area of the second ladder onto the respective rung of the underside first ladder even with the plate halves 1 folded in, the plate halves 1 of the first ladder have slot-shaped openings 10 at the rung spacing through which the rung hooks 9 of the second ladder and hooked onto the rungs of the first ladder.

Landscapes

  • 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

Leiter mit DieleLadder with hallway
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 Zug- und Druckstreben in alle Richtungen ausschwenkbar und feststellbar ausgebil- det sind.The invention relates to a ladder with a plank, the ladder being adjustable in length and having retractable and lockable support bars on the outer longitudinal sides, which are infinitely adjustable in length and designed to be pivotable in all directions and lockable by means of continuously adjustable tension and compression struts are.
Eine gattungsgemäße Vorrichtung ist aus dem Gebrauchsmuster DE 298 21 356 Ul bekannt, in dem Stabilisierungsstϋtzen für Bock- und Anlegeleitem beschrieben werden. Zug- und Druckstreben sind paarweise parallel an die Längsseiten einer Sta- bilisierungsstütze ein- und ausklappbar gelenkig befestigt und arretierbar ausgestaltet.A generic device is known from utility model DE 298 21 356 U1, in which stabilizing supports for fixed-ladder and mooring lines are described. Tension and compression struts are articulated in pairs in parallel on the long sides of a stabilizing support and can be folded out and folded out and locked.
Arbeitspodeste oder Mehrzweckdielen werden als schnell aufzubauende Kleingerüste eingesetzt.Work platforms or multi-purpose planks are used as small scaffolds that can be set up quickly.
Meistens werden zur Zeit Arbeitspodeste aus zwei aufgestellten Bockleitern mit dazwischen aufgelegten Brettern hergestellt.Mostly, work platforms are currently made from two fixed ladders with boards in between.
Deraπige 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. 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.Such constructions require a considerable amount of production work, and the work platforms which are provisionally produced from individual boards and separate ladders are unwieldy due to the individual parts which are stored and transported separately and can only be used to a limited extent in stair areas. The object of the invention is to develop the known ladder so that it can be used both as a conventional ladder and as a work floor or work platform.
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. As a result, the ladder can be used in a conventional manner in the opened state and as a work floorboard or work platform in the folded state.
Mit der erfindungsgemäßen Leiter wird in einem Gerät eine ausschiebbare Anlege- leiter, 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, a push-out contact ladder, which can be converted into a fixed ladder by means of laterally positioned and swing-out support bars, and a length-adjustable working platform are combined in each case by two plate halves that can be folded in and out separately and are hinged to the ladder rungs . In addition, the ladder board can be placed horizontally on one side, even on steps in stair curvatures, made possible by the differently adjustable ladder bar ends. The other side can be adjusted to the stair heights using the continuously adjustable support bars.
Mit eingeklappten Plattenhälften und an den Außenseiten der Leiterdiele eingeklappten und arretierten Abstützholmen ist die Leiterdiele besonders einfach zu transponieren oder zu lagern, aber jederzeit als Anlegeleiter, Bockleiter oder treppengängige Arbeitsbühne einsatzbereit.With the panel halves folded in and the support bars folded in and locked on the outside of the ladder board, the ladder board is particularly easy to transpose or store, but is always ready for use as a single ladder, step ladder or stair-climbing work platform.
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 nachfolgendenFurther advantages and features of the invention result from the following
Beschreibung von Ausführungsbeispielen, wobei auf Zeichnungen Bezug genommen wird, in der Fig. 1 die Leiter mit Diele mit eingeklappten Plattenhälften und ausgeschwenktenDescription of exemplary embodiments, reference being made to drawings in which Fig. 1, the ladder with hallway with the panel halves folded and swung out
Abstützholmen zeigt.Outriggers shows.
Fig. 2 die Leiter mit Diele mit aufgeklappten Plattenhälften zeigtFig. 2 shows the ladder with a board with the panel halves opened
Fig. 3 die Leiter mit Diele im Querschnitt mit einer aufgeklappten und einer eingeklappten Plattenhälfte zeigt,3 shows the ladder with plank in cross section with one half of the plate opened and one folded in,
Fig. 4 einen Arretierungsbolzen mit Segmentscheibe und Druckfeder zeigt, undFig. 4 shows a locking bolt with segment washer and compression spring, and
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.Fig. 5 shows in longitudinal section a ladder with a plank with the panel halves folded in, 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 Platter-hälfte sind Scharniere 5 angeordnet, die mit den unterseitigen Leitersprossen verbunden sind.On a ladder there are two plate halves 1 placed next to one another on a surface side. Hinges 5 are arranged on each outer longitudinal side of a platter half and 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.There are preferably two bores in each of the plate halves 1, through which locking bolts 3 are carried out with segment disks 12 and are secured from one side with a nut 11.
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 aufge- klappten Zustand zu arretieren. 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 Segmentscheibeninnenseite größer ist als zu der Leiterhol- maußenseite.The length of the bolts is dimensioned only as long as is necessary to reach over the segment disc 12 over the outside of the ladder rail in order to lock the plate halves 1 in the opened state. Due to the one-sided center of gravity, the segment disk 12 always ensures that an opened panel half 1 is held securely when the ladder board is used as an erected single ladder or fixed ladder, even if the distance between the fastening nut and the inside of the segment disk is greater than the outside of the ladder rail.
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 of the segment disc in order to securely lock the unfolded plate halves in any contact situation of the conductors.
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 rotating the segment disc to the parallelism between the chord side of the segment disc and the upper side of the spar, the locking bolt 3 can be returned with the segment disc 12 and the plate half 1 can be folded in.
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 can be extended on both sides. Length-adjustable ladder bars 4 are designed to reliably achieve uneven support widths (e.g. stair curvatures), regardless of the front or rear of the ladder.
An jeder äußeren Längsseite 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. Unterseitig der Leiter befinden sich U-förmig ausgebildete Einhakvorrichtungen, um ein Einhängen in Sprossen einer zweiten Leiter zu ermöglichen.On each outer longitudinal side of the ladder, at least one support bar 6, which can be swung out and infinitely adjustable in length and is also secured with infinitely adjustable tension / compression struts, is articulated and can be folded in and locked together with the tension / compression struts parallel to the exterior of the ladder. On the underside of the ladder there are U-shaped hooking devices in order to allow hanging in 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, which project to the inside of the ladder so far that a second ladder can be pushed in and out without restrictions even with the panel halves 1 opened.
Um die im unteren Leiterbereich der zweiten Leiter angeordneten Sprossenhaken 9 an die jeweils entsprechende Sprosse der unterseitigen ersten Leiter auch mit einge- klappten 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. In order to be able to hook the rung hooks 9 arranged in the lower ladder area of the second ladder onto the respective rung of the underside first ladder even with the plate halves 1 folded in, the plate halves 1 of the first ladder have slot-shaped openings 10 at the rung spacing through which the rung hooks 9 of the second ladder and hooked onto the rungs of the first ladder.
Aufstellung der Bezugszeichen:List of reference symbols:
1 klappbare Plattenhälften1 foldable plate halves
2 Leiter2 conductors
ArretierungsbolzenLocking bolt
4 ausschiebbare Leiterholme4 extendable ladder bars
5 Scharniere5 hinges
6 ausschwenkbare, längenverstellbare Abstützholme6 swing-out, length-adjustable support bars
7 Druckfeder7 compression spring
8 Führungspro file8 leadership profiles
9 Sprossenhaken9 rung hooks
10 schlitzförmige Durchbrüche10 slit-shaped openings
1 1 Befestigungsmutter1 1 fastening nut
12 Segmentscheibe 12 segment disc

Claims

Patentansprüche: Claims:
1. Leiter mit einer Diele, wobei die Leiter längenverstellbar ausgebildet ist und auch als ausschiebbare Anlegeleiter oder freistehende Bockleiter eingesetzt werden kann und an den äußeren Längsseiten einklapp- und arretierbare Abstützholme (6) aufweist, die stufenlos in der Länge verstellbar und durch stufenlos einstellba- re Zug- und Druckstreben in alle Richtungen ausschwenkbar und feststellbar ausgebildet sind, dadurch gekennzeichnet, daß die Diele aus zwei der Länge der Leiter entsprechende Plattenhälften (1) besteht, daß diese jeweils an ihrer äußeren Längsseite mittels Scharnieren (5) an den Leitersprossen gelenkig befestigt sind, daß die Arretierung der aufgeklappten Plattenhälften (1) mit Arretierungsele- menten. insbesondere Arretierungsbolzen (3) erfolgt, die mit Druckfedern (7) zwischen Befestigungsmutter (11) und Plattenhälftenunterseite und einer über die Leiterholmaußenseite übergreifende verdrehbare Segmentscheibe (12) ausgerüstet sind, daß die Plattenhälfte (1) den Sprossenabständen entsprechende, schlitzförmige Durchbrüche (10) aufweist, durch die Sprossenhaken (9) einer weiteren Leiter (2) durchführbar sind, um diese in die Sprossen der ersten Leiter (2) einzuhaken, und daß die Leiter (2) am oberen Ende mit Führungsprofilen (8) ausgestattet ist, die zu der Seite vorspringt, auf der die Diele angebracht ist.1. Ladder with a plank, the ladder being adjustable in length and can also be used as an extendable single ladder or free-standing fixed ladder and has support bars (6) which can be folded and locked on the outer longitudinal sides and which are infinitely adjustable in length and by infinitely adjustable re tension and compression struts can be swung out and locked in all directions, characterized in that the plank consists of two plate halves (1) corresponding to the length of the ladder, that they are each articulated on their outer longitudinal side by means of hinges (5) to the ladder rungs are that the opened plate halves (1) are locked with locking elements. In particular, locking bolts (3) are provided, which are equipped with compression springs (7) between the fastening nut (11) and the underside of the plate halves and a rotatable segment disc (12) that overlaps the outside of the stile that the plate half (1) has slot-like openings (10) corresponding to the rung spacings , through the rung hooks (9) of a further ladder (2) can be carried out in order to hook them into the rungs of the first ladder (2), and that the ladder (2) is equipped at the upper end with guide profiles (8) which lead to the Projecting side on which the plank is attached.
2. Leiter nach Anspruch 1. dadurch gekennzeichnet, daß die Leiterholmenden aus- schiebbare zusätzliche Leiterholme (4) aufweisen. 2. Ladder according to claim 1, characterized in that the ladder bar ends have additional ladder bars (4) which can be pushed out.
3. Leiter nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Abstützholme (6) an den unteren Enden mit auswechselbaren Gummifüßen versehen sind, die mit Bremsrollen oder Stützfußplatten mit Erdspitzen ausgestattet sind.3. Ladder according to claim 1 or 2, characterized in that the support bars (6) are provided at the lower ends with replaceable rubber feet, which are equipped with brake rollers or support foot plates with earth tips.
4. Leiter nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß zur Arretierung der aufgeklappten Plattenhälfte (1) als Arretierungselemente an den Leiterholm gelenkig befestigte Haken angebracht sind, die das Feststellen der aufgeklappten Plattenhälften ( 1 ) ermöglichten.4. Ladder according to one of claims 1 to 3, characterized in that for locking the unfolded plate half (1) are attached as locking elements to the ladder bar articulated hooks, which made it possible to determine the unfolded plate halves (1).
5. Leiter nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß an der Unterseite der Leiter U-förmige Einhakvorrichtungen angebracht sind, um diese auf andere Bauteile sicher auflegen zu können. 5. Ladder according to one of claims 1 to 4, characterized in that U-shaped hooking devices are attached to the underside of the ladder in order to be able to place them securely on other components.
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
DE19923765 1999-05-22
DE19923765A DE19923765C2 (en) 1999-05-22 1999-05-22 Ladder with hallway
PCT/DE2000/001486 WO2000071850A1 (en) 1999-05-22 2000-05-04 Ladder comprising a floorboard

Publications (2)

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

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IES20050206A2 (en) * 2005-04-08 2006-10-18 Declan Gallagher Combined stepladder and platform
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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
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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
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Also Published As

Publication number Publication date
EP1181431B1 (en) 2003-04-16
ATE237735T1 (en) 2003-05-15
WO2000071850A1 (en) 2000-11-30
US20020139612A1 (en) 2002-10-03
DE19923765C2 (en) 2001-05-31
US6543579B2 (en) 2003-04-08
DE50001804D1 (en) 2003-05-22
AU5389300A (en) 2000-12-12
DE19923765A1 (en) 1999-11-25

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