EP1443173A1 - Additional retractable sliding step - Google Patents

Additional retractable sliding step Download PDF

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Publication number
EP1443173A1
EP1443173A1 EP04001149A EP04001149A EP1443173A1 EP 1443173 A1 EP1443173 A1 EP 1443173A1 EP 04001149 A EP04001149 A EP 04001149A EP 04001149 A EP04001149 A EP 04001149A EP 1443173 A1 EP1443173 A1 EP 1443173A1
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EP
European Patent Office
Prior art keywords
tubes
retractable sliding
additional retractable
sliding step
horizontal
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
EP04001149A
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German (de)
French (fr)
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EP1443173B1 (en
Inventor
Jean-Paul Merigot
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Macc SA
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Macc SA
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Publication of EP1443173B1 publication Critical patent/EP1443173B1/en
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    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C7/00—Component parts, supporting parts, or accessories
    • E06C7/08—Special construction of longitudinal members, or rungs or other treads
    • E06C7/082—Connections between rungs or treads and longitudinal members
    • E06C7/083—Bracket type connection
    • 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
    • E06C1/14—Ladders capable of standing by themselves
    • E06C1/16—Ladders capable of standing by themselves with hinged struts which rest on the ground
    • E06C1/20—Ladders capable of standing by themselves with hinged struts which rest on the ground with supporting struts formed as poles
    • E06C1/22—Ladders capable of standing by themselves with hinged struts which rest on the ground with supporting struts formed as poles with extensible, e.g. telescopic, ladder parts or struts
    • 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
    • E06C1/393—Ladders having platforms foldable with the ladder
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C1/00—Ladders in general
    • E06C1/02—Ladders in general with rigid longitudinal member or members
    • E06C1/38—Special constructions of ladders, e.g. ladders with more or less than two longitudinal members, ladders with movable rungs or other treads, longitudinally-foldable ladders
    • E06C1/397—Special constructions of ladders, e.g. ladders with more or less than two longitudinal members, ladders with movable rungs or other treads, longitudinally-foldable ladders characterised by having wheels, rollers, or runners
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C7/00—Component parts, supporting parts, or accessories
    • E06C7/42—Ladder feet; Supports therefor
    • E06C7/44—Means for mounting ladders on uneven ground

Definitions

  • Man uses certain materials such as ladders, stepladders, individual work platforms to allow him to perform different works at varying heights.
  • the equipment used are often equipped with fixed steps and telescopic feet adjustable to achieve higher working heights large.
  • a step or step is added by folding down on the telescopic legs. This provision known does not allow to obtain all the rigidity and consequently the security offered by this type of walk.
  • the object of the present invention is to remedy these shortcomings by supplementing the materials provided with telescopic feet of a step sliding retractable.
  • This sliding step located at the level of the outgoing telescopic part of the feet, avoids spacing too large between the supporting floor and the first lower fixed step when the telescopic legs are extended. So the user will be able to ascend or descend safely without suffering any offset unpleasant or even dangerous between the supporting floor and the bottom step fixed material.
  • This sliding step added between the feet is designed to so as to offer, on the other hand, great resistance to the effects of torsion due to the effects of rising and falling under the weight of the user. In the folded position, this step is kept under the first fixed lower step of the device. This maintenance is ensured by clipping so as to avoid any inconvenience for the user when the use of this sliding step is no longer necessary.
  • the additional retractable sliding step consists of two horizontal tubes coming from either side of the generators of telescopic legs and are joined by two plates. It is this provision which ensures good resistance to the torsion effect mentioned above.
  • the two plates connecting the two horizontal tubes support two sliding vertical tubes. This sliding is done in two tubes sleeves integral with the telescopic legs.
  • the constitution of others fixed steps of the device by two parallel tubes allows to make slide between them the two vertical tubes of the additional step sliding retractable. This sliding value of a spacing between steps is limited by stops located on the end upper of the guide sleeve tubes.
  • Figure 1 shows, by way of example, a perspective view an individual work platform with telescopic legs extended, equipped additional retractable sliding step.
  • FIG. 2 represents a partial and perspective view of the telescopic legs, fixed steps side, exits and additional step retractable sliding deployed.
  • Figure 3 shows a partial perspective view seen from below of two fixed steps of the individual work platform with retracted telescopic feet, including the retractable sliding step is clipped under the lower fixed step.
  • Figure 4 shows a partial perspective view of the retractable sliding step folded with its locking system.
  • the additional retractable sliding step (1) consists of two horizontal tubes (9) and (9 ') joined together by two plates (7) and (7 ') integral with two vertical tubes (4) and (4') sliding.
  • the two vertical tubes (4) and (4 ') slide in two guide sleeve tubes (5) and (5 ') welded on the inner face of each of the female parts (14) and (14 ') of the feet telescopic (2) and (2 ') and located between the two horizontal tubes (10) and (10 ') constituting the lower fixed step (12) integral with the parts females (14) and (14 ') of the telescopic legs (2) and (2').
  • the additional retractable sliding step (1) is kept in the folded position and clipped under the step lower fixed (12) consisting of two horizontal tubes (10) and (10 ') integral with the female parts (14) and (14 ') of the telescopic legs (2) and (2 ') by means of a flexible tongue (8) itself secured to the tube horizontal (10).
  • this flexible tongue (8) has a notch (11) which comes after flexibility, bear on the horizontal tube (9) of the additional retractable sliding step (1), to hold it in its folded position.
  • the two vertical tubes (4) and (4 ') of the additional retractable sliding steps (1) are equipped with upper end of the stops (6) and (6 ') which come to bear on the upper end of the two guide sleeve tubes (5) and (5 ') when the additional retractable sliding step (1) is in deployed position.
  • the lower fixed step (12) and the fixed step (12 ') of the individual work platform (13) are made up respectively of two horizontal tubes (10) and (10 ') and two horizontal tubes (15) and (15 '), these tubes are integral with the parts females (14) and (14 ') of the telescopic legs (2) and (2') and are spread to allow in the meantime thus obtained the sliding of the additional retractable sliding step (1).
  • the lower fixed step (12) of the platform individual working form (13) consists of two horizontal tubes (10) and (10 '), and these tubes integral with the female parts (14) and (14 ') of the telescopic legs (2) and (2') are separated so as to allow the housing of the two guide sleeve tubes (5) and (5 ') in which will slide the two vertical tubes (4) and (4 ') of the additional retractable sliding step (1) during its ascent under the lower fixed step (12).

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

Abstract

The rung (1) has two horizontal tubes (9,9) joined together by two plates (7,7) integrated to two vertical tubes (4,4), which slide in guiding sleeve tubes (5,5). The sleeve tubes are welded on to each interior face of female parts (14,14) of telescopic bases (2,2) and located between two horizontal tubes (10,10) of a fixed lower rung (12).

Description

L'Homme utilise certains matériels comme les échelles, les escabeaux, les plates-formes individuelles de travail pour lui permettre de réaliser différents travaux à des hauteurs variables.Man uses certain materials such as ladders, stepladders, individual work platforms to allow him to perform different works at varying heights.

Pour satisfaire cette variabilité des hauteurs d'intervention les matériels utilisés sont souvent équipés de marches fixes et de pieds télescopiques réglables permettant d'atteindre des hauteurs de travail plus grandes. Pour compenser ces réglages une marche ou un échelon est rajouté par rabattement sur les pieds télescopiques. Cette disposition connue ne permet pas d'obtenir toute la rigidité et par voie de conséquence la sécurité offerte par ce type de marche.To satisfy this variability in intervention heights, the equipment used are often equipped with fixed steps and telescopic feet adjustable to achieve higher working heights large. To compensate for these adjustments, a step or step is added by folding down on the telescopic legs. This provision known does not allow to obtain all the rigidity and consequently the security offered by this type of walk.

La présente invention a pour but de remédier à ces insuffisances en complétant les matériels pourvus de pieds télescopiques d'une marche coulissante escamotable. Cette marche coulissante située au niveau de la partie télescopique sortante des pieds, permet d'éviter un espacement trop important entre le sol d'appui et la première marche fixe inférieure lorsque les pieds télescopiques sont déployés. Ainsi, l'utilisateur pourra monter ou descendre en toute sécurité sans subir de décalage désagréable, voire dangereux entre le sol d'appui et la marche inférieure fixe du matériel.The object of the present invention is to remedy these shortcomings by supplementing the materials provided with telescopic feet of a step sliding retractable. This sliding step located at the level of the outgoing telescopic part of the feet, avoids spacing too large between the supporting floor and the first lower fixed step when the telescopic legs are extended. So the user will be able to ascend or descend safely without suffering any offset unpleasant or even dangerous between the supporting floor and the bottom step fixed material.

Cette marche coulissante ajoutée entre les pieds est conçue de manière à offrir, d'autre part, une grande résistance aux effets de torsion dus aux effets de montée et de descente sous le poids de l'utilisateur. En position repliée, cette marche est maintenue sous la première marche inférieure fixe de l'appareil. Ce maintien est assuré par clipsage de façon à éviter toute gêne pour l'utilisateur lorsque l'utilisation de cette marche coulissante n'est plus nécessaire.This sliding step added between the feet is designed to so as to offer, on the other hand, great resistance to the effects of torsion due to the effects of rising and falling under the weight of the user. In the folded position, this step is kept under the first fixed lower step of the device. This maintenance is ensured by clipping so as to avoid any inconvenience for the user when the use of this sliding step is no longer necessary.

La marche additionnelle coulissante escamotable est constituée de deux tubes horizontaux venant de part et d'autre des génératrices des pieds télescopiques et sont réunis par deux plats. C'est cette disposition qui assure la bonne résistance à l'effet de torsion évoqué précédemment.The additional retractable sliding step consists of two horizontal tubes coming from either side of the generators of telescopic legs and are joined by two plates. It is this provision which ensures good resistance to the torsion effect mentioned above.

Les deux plats reliant les deux tubes horizontaux supportent deux tubes verticaux coulissants. Ce coulissement se fait dans deux tubes fourreaux solidaires des pieds télescopiques. La constitution des autres marches fixes de l'appareil par deux tubes parallèles permet de faire coulisser entre ceux-ci les deux tubes verticaux de la marche additionnelle coulissante escamotable. Ce coulissement de la valeur d'un espacement entre marche est limité par des butées situées sur l'extrémité supérieure des tubes fourreaux de guidage. The two plates connecting the two horizontal tubes support two sliding vertical tubes. This sliding is done in two tubes sleeves integral with the telescopic legs. The constitution of others fixed steps of the device by two parallel tubes allows to make slide between them the two vertical tubes of the additional step sliding retractable. This sliding value of a spacing between steps is limited by stops located on the end upper of the guide sleeve tubes.

La figure 1 représente, à titre d'exemple, une vue en perspective d'une plate-forme individuelle de travail pieds télescopiques sortis, équipée de la marche additionnelle coulissante escamotable.Figure 1 shows, by way of example, a perspective view an individual work platform with telescopic legs extended, equipped additional retractable sliding step.

La figure 2 représente une vue partielle et en perspective des pieds télescopiques, coté marches fixes, sortis et la marche additionnelle coulissante escamotable déployée.FIG. 2 represents a partial and perspective view of the telescopic legs, fixed steps side, exits and additional step retractable sliding deployed.

La figure 3 représente une vue partielle en perspective vue de dessous de deux marches fixes de la plate-forme individuelle de travail avec pieds télescopiques rentrés, dont la marche additionnelle coulissante escamotable est clipsée sous la marche fixe inférieure.Figure 3 shows a partial perspective view seen from below of two fixed steps of the individual work platform with retracted telescopic feet, including the retractable sliding step is clipped under the lower fixed step.

La figure 4 représente une vue partielle et en perspective de la marche coulissante escamotable repliée avec son système de blocage.Figure 4 shows a partial perspective view of the retractable sliding step folded with its locking system.

Selon les figures 1, 2, 4 la marche additionnelle coulissante escamotable (1) est constituée de deux tubes horizontaux (9) et (9') réunis par deux plats (7) et (7') solidaires de deux tubes verticaux (4) et (4') coulissants.According to Figures 1, 2, 4 the additional retractable sliding step (1) consists of two horizontal tubes (9) and (9 ') joined together by two plates (7) and (7 ') integral with two vertical tubes (4) and (4') sliding.

Suivant les figures 1, 2, 4, les deux tubes verticaux (4) et (4') coulissent dans deux tubes fourreaux de guidage (5) et (5') soudés sur la face intérieure de chacune des parties femelles (14) et (14') des pieds télescopiques (2) et (2') et situés entre les deux tubes horizontaux (10) et (10') constituant la marche fixe inférieure (12) solidaire des parties femelles (14) et (14') des pieds télescopiques (2) et (2').According to Figures 1, 2, 4, the two vertical tubes (4) and (4 ') slide in two guide sleeve tubes (5) and (5 ') welded on the inner face of each of the female parts (14) and (14 ') of the feet telescopic (2) and (2 ') and located between the two horizontal tubes (10) and (10 ') constituting the lower fixed step (12) integral with the parts females (14) and (14 ') of the telescopic legs (2) and (2').

Suivant la figure 3 et 4, la marche additionnelle coulissante escamotable (1) est maintenue en position repliée et clipsée sous la marche fixe inférieure (12) constituée des deux tubes horizontaux (10) et (10') solidaires des parties femelles (14) et (14') des pieds télescopiques (2) et (2') au moyen d'une languette flexible (8) elle-même solidaire du tube horizontal (10).According to Figures 3 and 4, the additional retractable sliding step (1) is kept in the folded position and clipped under the step lower fixed (12) consisting of two horizontal tubes (10) and (10 ') integral with the female parts (14) and (14 ') of the telescopic legs (2) and (2 ') by means of a flexible tongue (8) itself secured to the tube horizontal (10).

Suivant les figures 3 et 4, cette languette flexible (8) possède un cran (11) qui vient après flexibilité, prendre appui sur le tube horizontal (9) de la marche additionnelle coulissante escamotable (1), pour la retenir dans sa position repliée.According to Figures 3 and 4, this flexible tongue (8) has a notch (11) which comes after flexibility, bear on the horizontal tube (9) of the additional retractable sliding step (1), to hold it in its folded position.

Suivant les figures 1 et 2, les deux tubes verticaux (4) et (4') de la marche additionnelle coulissante escamotable (1) sont équipés à leur extrémité supérieure des butées (6) et (6') qui viennent prendre appui sur l'extrémité supérieure des deux tubes fourreaux de guidage (5) et (5') lorsque la marche additionnelle coulissante escamotable (1) est en position déployée.According to Figures 1 and 2, the two vertical tubes (4) and (4 ') of the additional retractable sliding steps (1) are equipped with upper end of the stops (6) and (6 ') which come to bear on the upper end of the two guide sleeve tubes (5) and (5 ') when the additional retractable sliding step (1) is in deployed position.

Suivant les figures 1, 2, 3, 4, les extrémités (3) et (3') des deux tubes horizontaux (9) et (9') réunis par deux plats (7) et (7') de la marche additionnelle escamotable coulissante (1), sont situées de part et d'autre des parties femelles (14) et (14') des pieds télescopiques (2) et (2') de façon à conférer à la marche additionnelle coulissante escamotable (1) une très bonne résistance à la torsion sous l'effet du poids de l'utilisateur.According to Figures 1, 2, 3, 4, the ends (3) and (3 ') of the two horizontal tubes (9) and (9 ') joined by two flat (7) and (7') steps additional retractable sliding (1), are located on both sides on the other of the female parts (14) and (14 ') of the telescopic legs (2) and (2 ') so as to give the additional retractable sliding step (1) very good resistance to torsion under the effect of the weight of the user.

Suivant les figures 1, 2, 3, la marche fixe inférieure (12) et la marche fixe (12') de la plate-forme individuelle de travail (13) sont constituées respectivement de deux tubes horizontaux (10) et (10') et de deux tubes horizontaux (15) et (15'), ces tubes sont solidaires des parties femelles (14) et (14') des pieds télescopiques (2) et (2') et sont écartés pour permettre dans l'intervalle ainsi obtenu le coulissement de la marche additionnelle coulissante escamotable (1).According to Figures 1, 2, 3, the lower fixed step (12) and the fixed step (12 ') of the individual work platform (13) are made up respectively of two horizontal tubes (10) and (10 ') and two horizontal tubes (15) and (15 '), these tubes are integral with the parts females (14) and (14 ') of the telescopic legs (2) and (2') and are spread to allow in the meantime thus obtained the sliding of the additional retractable sliding step (1).

Suivant les figures 1, 2, 4 la marche fixe inférieure (12) de la plate forme individuelle de travail (13) est constituée de deux tubes horizontaux (10) et (10'), et ces tubes solidaires des parties femelles (14) et (14') des pieds télescopiques (2) et (2') sont écartés de façon à permettre le logement des deux tubes fourreaux de guidage (5) et (5') dans lesquels viendront coulisser les deux tubes verticaux (4) et (4') de la marche additionnelle coulissante escamotable (1) lors de sa remontée sous la marche fixe inférieure (12).According to Figures 1, 2, 4 the lower fixed step (12) of the platform individual working form (13) consists of two horizontal tubes (10) and (10 '), and these tubes integral with the female parts (14) and (14 ') of the telescopic legs (2) and (2') are separated so as to allow the housing of the two guide sleeve tubes (5) and (5 ') in which will slide the two vertical tubes (4) and (4 ') of the additional retractable sliding step (1) during its ascent under the lower fixed step (12).

Claims (5)

Marche additionnelle coulissante escamotable (1) adaptable sur les matériels type échelles, échafaudages, plates-formes individuelles de travail dont les pieds d'appui sont télescopiques et réglables, et pourvus d'au moins une marche fixe inférieure (12) constituée de deux tubes horizontaux (10) et (10') solidaires de part et d'autre des parties femelles (14) et (14') des pieds télescopiques (2) et (2') caractérisée en ce qu'elle est, elle-même, constituée de deux tubes horizontaux (9) et (9') réunis par deux plats (7) et (7') solidaires de deux tubes verticaux (4) et (4') qui coulissent dans deux tubes fourreaux de guidage (5) et (5') soudés sur chacune des faces intérieures des parties femelles (14) et (14') des pieds télescopiques (2) et (2'), et situés entre les deux tubes horizontaux (10) et (10') de la marche fixe inférieure (12).Additional retractable sliding step (1) adaptable to equipment such as ladders, scaffolding, individual work platforms whose support legs are telescopic and adjustable, and provided with at least one lower fixed step (12) consisting of two tubes horizontal (10) and (10 ') integral with both sides of the female parts (14) and (14') of the telescopic legs (2) and (2 ') characterized in that it is, itself, consisting of two horizontal tubes (9) and (9 ') joined by two plates (7) and (7') integral with two vertical tubes (4) and (4 ') which slide in two guide sleeve tubes (5) and (5 ') welded on each of the inner faces of the female parts (14) and (14') of the telescopic legs (2) and (2 '), and located between the two horizontal tubes (10) and (10') of the lower fixed step (12). Marche additionnelle coulissante escamotable (1), suivant revendication 1, caractérisée en ce que sa conception particulière constituée de deux tubes horizontaux (9) et (9') dont les extrémités (3) et (3') sont situées de part et d'autre des génératrices des parties femelles (14) et (14') des pieds télescopiques (2) et (2') de façon à conférer à la marche additionnelle coulissante escamotable (1) une résistance importante à la torsion due à l'effet de poids de l'utilisateur conférant ainsi à celui-ci une meilleure sécurité.Additional retractable sliding step (1), according to claim 1, characterized in that its particular design consists of two horizontal tubes (9) and (9 ') whose ends (3) and (3') are located on either side other of the generatrices of the female parts (14) and (14 ') of the telescopic legs (2) and (2') so as to give the additional retractable sliding step (1) significant resistance to torsion due to the effect of weight of the user thus giving it better security. Marche additionnelle coulissante escamotable (1), suivant revendication 1, caractérisée en ce que la marche fixe inférieure (12) de la plate-forme individuelle de travail (13) à pieds télescopiques (2) et (2') constitués de deux tubes horizontaux (10) et (10') solidaires des parties femelles (14) et (14') des pieds télescopiques (2) et (2') sont suffisamment écartés pour recevoir les deux tubes fourreaux de guidage (5) et (5') dans lesquels viendront coulisser les tubes verticaux (4) et (4') de la marche additionnelle coulissante escamotable (1) lors de sa remontée sous la marche fixe inférieure (12).Additional retractable sliding step (1) according to claim 1, characterized in that the lower fixed step (12) of the individual working platform (13) with telescopic legs (2) and (2 ') consisting of two horizontal tubes (10) and (10 ') integral with the female parts (14) and (14') of the telescopic legs (2) and (2 ') are sufficiently spaced to receive the two guide sheath tubes (5) and (5') in which the vertical tubes (4) and (4 ') of the additional retractable sliding step (1) will slide during its ascent under the lower fixed step (12). Marche additionnelle coulissante escamotable (1), suivant revendications 1 et 3, caractérisée en ce que les tubes verticaux (4) et (4') comportent en leur extrémité supérieure des butées (6) et (6') venant coopérer avec l'extrémité supérieure des deux tubes fourreaux de guidage (5) et (5') de façon à éviter toute sortie intempestive de la marche additionnelle coulissante escamotable (1).Additional retractable sliding step (1), according to claims 1 and 3, characterized in that the vertical tubes (4) and (4 ') have at their upper end stops (6) and (6') which cooperate with the end upper of the two guide sleeve tubes (5) and (5 ') so as to avoid any untimely exit from the additional retractable sliding step (1). Marche additionnelle coulissante escamotable (1), suivant revendications 1 et 3, caractérisée en ce qu'elle est maintenue en position de non utilisation sous la marche fixe inférieure (12) par une languette flexible (8) solidaire du tube horizontal (10) de la dite marche fixe inférieure (12), et possédant un cran (11) qui prend appui sur le tube horizontal (9) pour le bloquer et éviter toute descente non désirée de la marche additionnelle coulissante escamotable (1).Additional retractable sliding step (1), according to claims 1 and 3, characterized in that it is held in the non-use position under the lower fixed step (12) by a flexible tongue (8) integral with the horizontal tube (10) of said lower fixed step (12), and having a notch (11) which bears on the horizontal tube (9) to block it and avoid any unwanted descent of the additional retractable sliding step (1).
EP20040001149 2003-02-03 2004-01-21 Additional retractable sliding step for ladders or the like Expired - Lifetime EP1443173B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0301219 2003-02-03
FR0301219A FR2850703B1 (en) 2003-02-03 2003-02-03 ADDITIONAL SLIDING ADJUSTABLE MARKET

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EP1443173A1 true EP1443173A1 (en) 2004-08-04
EP1443173B1 EP1443173B1 (en) 2007-11-21

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DE (1) DE602004010195D1 (en)
FR (1) FR2850703B1 (en)

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CN105545200A (en) * 2016-01-29 2016-05-04 成都绿迪科技有限公司 Convenient-to-carry garden ladder
CN108661544A (en) * 2018-06-14 2018-10-16 芜湖博康机电有限公司 A kind of convenient escalator

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US6073726A (en) * 1998-11-16 2000-06-13 Mccrystal; James D. Adjustable step ladder
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DE29701938U1 (en) * 1997-02-04 1997-04-24 Gödde, Rainer, 81243 München Telescopic stepladder
FR2764320A1 (en) * 1997-06-09 1998-12-11 Coltel Ets Mobile folding work platform with adjustable working platform for painting or similar trades
US6073726A (en) * 1998-11-16 2000-06-13 Mccrystal; James D. Adjustable step ladder
US6209683B1 (en) * 1999-07-22 2001-04-03 Dale Roy Holtz Adjustable sawhorse

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007110888A1 (en) * 2006-03-24 2007-10-04 Aris S.R.L. Foldable stepladder with foldable handrail
CN105545200A (en) * 2016-01-29 2016-05-04 成都绿迪科技有限公司 Convenient-to-carry garden ladder
CN108661544A (en) * 2018-06-14 2018-10-16 芜湖博康机电有限公司 A kind of convenient escalator

Also Published As

Publication number Publication date
FR2850703A1 (en) 2004-08-06
EP1443173B1 (en) 2007-11-21
DE602004010195D1 (en) 2008-01-03
FR2850703B1 (en) 2005-09-16

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