EP1486641A1 - Retractable and freely adjustable slidable handrail - Google Patents

Retractable and freely adjustable slidable handrail Download PDF

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Publication number
EP1486641A1
EP1486641A1 EP04008976A EP04008976A EP1486641A1 EP 1486641 A1 EP1486641 A1 EP 1486641A1 EP 04008976 A EP04008976 A EP 04008976A EP 04008976 A EP04008976 A EP 04008976A EP 1486641 A1 EP1486641 A1 EP 1486641A1
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EP
European Patent Office
Prior art keywords
handrail
retractable
adjustable
ladder
sliding
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Granted
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EP04008976A
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German (de)
French (fr)
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EP1486641B1 (en
Inventor
Jean-Paul Merigot
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Macc SA
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Macc SA
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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
    • E06C7/18—Devices for preventing persons from falling

Definitions

  • the present invention relates to a retractable sliding handrail and adjustable at will, mainly intended for ladders or stepladders.
  • the idea of the present invention came from the difficulty for mount or supply loads to a higher work plan or alleviate, safely, without having to bypass the upper end of the scale beyond the fulcrum.
  • a ladder must protrude one meter above the level or landing at which one must access, or be extended by a handrail.
  • Patent GB 2274673 Step ladder.
  • This patent describes a handrail. To be able to install this handrail, it must be rotated until the shape with a notch (54) comes into contact with lugs (55) or (56). In addition, the handrail does not exceed beyond amounts of the ladder in its longitudinal direction and overlaps on the scale.
  • US Patent 2,640,641 Safety rail attachment for stepladders.
  • This patent describes a handrail adjustable in two positions under the action of pivoting two latches (20): a maximum position and a minimum position along the outer surface of the ladder posts. The blocking takes place when the end (25) of the two latches (20) comes into contact with the hollow shapes of the handrail.
  • This handrail is not adjustable only in two positions.
  • Patent EP 0 940 556 A2 Device for ladder.
  • This patent describes a handrail which is connected to the side element of the ladder via fixing means (3). After the installation of the handrail on said fixing means (3), the latter is adjustable only in rotation relative to the side element of the ladder. To change the length useful of the handrail, the user is obliged to move the means of fixing (3) in another place on the side of the ladder. In addition, this handrail is superimposed on the side element of the ladder.
  • the handrail is retractable sliding and adjustable at will, at its useful part on the longitudinal plane, on the internal face of the double upright of the ladder.
  • the sliding handrail retractable and adjustable at will, fully integrated into the scale, is adjacent to the inside of the double ladder amount.
  • the retractable sliding handrail and adjustable at will can equip the double uprights, either on the right or left of the ladder, or even on both sides simultaneously.
  • the present invention relates to a sliding ladder handrail retractable and adjustable at will.
  • the retractable and adjustable sliding handrail is composed of a curved tube, of oblong section, U-shaped with two large parallel branches.
  • the retractable handrail and adjustable at will is blocked by a flange.
  • a stop serves as limit switch for the sliding of the handrail retractable and adjustable at will in fully unfolded position.
  • Figure 1 shows, in partial perspective, the device of this invention in the unfolded position on a deployed ladder.
  • Figure 2 shows, in perspective, the device of the present invention in the folded position on a retractable and adjustable sliding ladder at will.
  • FIG. 3 shows, in section, the locking device of this invention.
  • the device comprises a sliding handrail retractable and adjustable at will (1) which is formed in an inverted U, in a single piece made up of two parallel branches (12) (12 ') by example of oblong sections, of unlimited length and being closed at their upper end by a curved shape (8), for example rounded.
  • the retractable and adjustable sliding handrail (1) slides parallel to the double uprights (3) (3 ') of the ladder (11) and to the rungs or steps (5) thanks to the two parallel branches (12) (12 ') of the retractable sliding handrail and adjustable at will (1).
  • the hand retractable and adjustable sliding current (1) is adjacent to the inner face of the double uprights (3) (3 ') of the ladder (11) and sliding between the two support guides (2) (2 ') integral with the inner face double uprights (3) (3 ') of the ladder (11).
  • Minimum clearance between two support guides (2) (2 '), and the double uprights (3) (3') of the ladder (11) allows the retractable sliding handrail and adjustable at will (1) to slide on the inner face of said double uprights (3) (3 ').
  • the two extreme positions of the retractable sliding handrail and adjustable at will (1) are, on the one hand, a fully folded position and, on the other hand, a fully extended position.
  • the position entirely folded is obtained when the curved shape (8) of the sliding handrail retractable and adjustable at will (1) comes into contact with the flange (4).
  • the fully extended position is achieved when the stop (9) comes into contact with one of the two support guides (2) (2 ').
  • the blocking assembly consists of the plate support (10) secured to the double uprights (3) (3 '), to the threaded rod (7) secured said support plate (10), the locking button (6) and the flange (4).
  • This blocking element is positioned on the upper part of the double uprights (3) (3 ') of the ladder (11).
  • the blocking of this is obtained by the rotation of the blocking button (6) which pushes in translation the flange (4) which itself comes push the two parallel branches (12) (12 ') of the sliding handrail, retractable and adjustable at will (1) against double uprights (3) (3 ') of the ladder (11) thus blocking said retractable sliding handrail and adjustable at will (1) in the desired position.
  • the hand sliding retractable current and adjustable at will (1) can be fixed to the right of the ladder (11) on the double uprights (3) (3 ') or to the left of the ladder (11) on the double uprights (3 ") (3"').
  • the retractable and adjustable sliding handrail at will (1) folds back in parallel with the double uprights (3) (3 ') or (3 ") (3" ') inside the scale plane (11), which has the advantage of not create any prominence on the outside of said double uprights (3) (3 ').
  • the retractable sliding handrail and adjustable at will (1) therefore disappears completely in the plane of the scale (11).
  • the retractable sliding handrail and adjustable at will (1) is made in a tubular section flat, for example of oblong section, which allows it to be located in slight shrinkage to prevent it from exceeding double uprights (3) (3 ') or (3 ") (3" ').
  • This feature allows that it is always the amounts (3 ') (3 "') which bear when the ladder (11) is pressed on a slab angle, bearing or other and thus frees the sliding of the handrail sliding retractable and adjustable at will (1) without rubbing and without be trapped by these supports even when the user is on the scale.

Abstract

The handrail has two parallel branches sliding in two support guides integrated with double jambs of a ladder (11). The handrail is locked in a position by a locking button (6) which pushes in translation a flange (4) for pushing the branches against the jambs. The handrail is in folded position when curved form comes in contact with the flange and is in unfolded position when stop (9) comes in contact with one of the guides.

Description

La présente invention concerne une main courante coulissante escamotable et réglable à volonté, principalement destinée aux échelles ou escabeaux.The present invention relates to a retractable sliding handrail and adjustable at will, mainly intended for ladders or stepladders.

L'idée de la présente invention est venue du fait de la difficulté pour monter ou approvisionner des charges à un plan de travail supérieur ou pallier, en toute sécurité, sans avoir à contourner l'extrémité supérieure de l'échelle dépassant le point d'appui. Suivant les normes de sécurité, une échelle doit dépasser d'un mètre par rapport au niveau ou du palier auquel on doit accéder, ou être prolongée par une main courante.The idea of the present invention came from the difficulty for mount or supply loads to a higher work plan or alleviate, safely, without having to bypass the upper end of the scale beyond the fulcrum. According to security standards, a ladder must protrude one meter above the level or landing at which one must access, or be extended by a handrail.

Brevet GB 2274673 : Step ladder. Ce brevet décrit une main courante. Pour pouvoir mettre en place cette main courante, il faut la faire pivoter jusqu'à ce que la forme comportant une encoche (54) vienne en contact avec des ergots (55) ou (56). De plus la main courante ne dépasse pas au-delà des montants de l'échelle dans son sens longitudinal et se superpose sur l'échelle.Patent GB 2274673: Step ladder. This patent describes a handrail. To be able to install this handrail, it must be rotated until the shape with a notch (54) comes into contact with lugs (55) or (56). In addition, the handrail does not exceed beyond amounts of the ladder in its longitudinal direction and overlaps on the scale.

Brevet US 2,640,641 : Safety rail attachment for stepladders. Ce brevet décrit une main courante réglable en deux positions sous l'action du pivotement de deux loquets (20) : une position maximum et une position minimum le long de la surface externe des montants de l'échelle. Le blocage s'effectue lorsque l'extrémité (25) des deux loquets (20) vient en contact avec les formes creuses de la main courante. Cette main courante n'est réglable qu'en deux positions seulement.US Patent 2,640,641: Safety rail attachment for stepladders. This patent describes a handrail adjustable in two positions under the action of pivoting two latches (20): a maximum position and a minimum position along the outer surface of the ladder posts. The blocking takes place when the end (25) of the two latches (20) comes into contact with the hollow shapes of the handrail. This handrail is not adjustable only in two positions.

Brevet EP 0 940 556 A2 : Dispositif pour échelle. Ce brevet décrit une main courante qui est reliée à l'élément latéral de l'échelle par l'intermédiaire de moyens de fixation (3). Après la mise en place de la main courante sur lesdits moyens de fixation (3), celle-ci est réglable uniquement en rotation par rapport à l'élément latéral de l'échelle. Pour modifier la longueur utile de la main courante, l'utilisateur est obligé de déplacer les moyens de fixation (3) à un autre endroit sur l'élément latéral de l'échelle. De plus, cette main courante se superpose sur l'élément latéral de l'échelle. Patent EP 0 940 556 A2: Device for ladder. This patent describes a handrail which is connected to the side element of the ladder via fixing means (3). After the installation of the handrail on said fixing means (3), the latter is adjustable only in rotation relative to the side element of the ladder. To change the length useful of the handrail, the user is obliged to move the means of fixing (3) in another place on the side of the ladder. In addition, this handrail is superimposed on the side element of the ladder.

Le dispositif décrit ci-après, selon la présente invention, permet de remédier à ces inconvénients puisque la main courante est coulissante escamotable et réglable à volonté, au niveau de sa partie utile sur le plan longitudinal, sur la face interne du double montant de l'échelle. Dans sa position repliée, la main courante coulissante escamotable et réglable à volonté, totalement intégrée à l'échelle, est adjacente sur la face intérieure du double montant de l'échelle. De plus, la main courante coulissante escamotable et réglable à volonté peut équiper les doubles montants, soit à droite, soit à gauche de l'échelle, voire des deux côtés simultanément.The device described below, according to the present invention, makes it possible to remedy these drawbacks since the handrail is retractable sliding and adjustable at will, at its useful part on the longitudinal plane, on the internal face of the double upright of the ladder. In its position folded, the sliding handrail retractable and adjustable at will, fully integrated into the scale, is adjacent to the inside of the double ladder amount. In addition, the retractable sliding handrail and adjustable at will can equip the double uprights, either on the right or left of the ladder, or even on both sides simultaneously.

La présente invention concerne une main courante d'échelle coulissante escamotable et réglable à volonté.The present invention relates to a sliding ladder handrail retractable and adjustable at will.

La main courante coulissante escamotable et réglable à volonté est composée d'un tube cintré, de section oblongue, en forme de U avec deux grandes branches parallèles.The retractable and adjustable sliding handrail is composed of a curved tube, of oblong section, U-shaped with two large parallel branches.

Deux guides supports de cette main courante escamotable et réglable à volonté sont fixés aux doubles montants de l'échelle à droite comme à gauche.Two support guides for this retractable and adjustable handrail at will are fixed to the double uprights of the ladder on the right as at left.

En position souhaitée, la main courante escamotable et réglable à volonté est bloquée par une bride.In the desired position, the retractable handrail and adjustable at will is blocked by a flange.

Une butée sert de fin de course au coulissement de la main courante escamotable et réglable à volonté en position entièrement dépliée.A stop serves as limit switch for the sliding of the handrail retractable and adjustable at will in fully unfolded position.

Les dessins annexés illustrent l'invention.The accompanying drawings illustrate the invention.

La figure 1 représente, en perspective partielle, le dispositif de la présente invention en position dépliée sur une échelle déployée.Figure 1 shows, in partial perspective, the device of this invention in the unfolded position on a deployed ladder.

La figure 2 représente, en perspective, le dispositif de la présente invention en position repliée sur une échelle coulissante escamotable et réglable à volonté.Figure 2 shows, in perspective, the device of the present invention in the folded position on a retractable and adjustable sliding ladder at will.

La figure 3 représente, en coupe, le dispositif de blocage de la présente invention.Figure 3 shows, in section, the locking device of this invention.

Selon les figures 1 et 2, le dispositif comporte une main courante coulissante escamotable et réglable à volonté (1) qui est formée, en U renversé, en une seule pièce constituée de deux branches parallèles (12) (12') par exemple de sections oblongues, de longueur non limitative et étant fermées en leur extrémité supérieure par une forme cintrée (8) par exemple arrondie. La main courante coulissante escamotable et réglable à volonté (1 ) coulisse parallèlement aux doubles montants (3) (3') de l'échelle (11) et aux échelons ou marches (5) grâce aux deux branches parallèles (12) (12') de la main courante coulissante escamotable et réglable à volonté (1 ). La main courante coulissante escamotable et réglable à volonté (1) est adjacente à la face intérieure des doubles montants (3) (3') de l'échelle (11 ) et coulissante entre les deux guides supports (2) (2') solidaires de la face intérieure des doubles montants (3) (3') de l'échelle (11). Un jeu minimum entre les deux guides supports (2) (2'), et les doubles montants (3) (3') de l'échelle (11) permet à la main courante coulissante escamotable et réglable à volonté (1) de coulisser sur la face intérieure desdits doubles montants (3) (3'). Les deux positions extrêmes de la main courante coulissante escamotable et réglable à volonté (1) sont, d'une part, une position entièrement repliée et, d'autre part, une position entièrement dépliée. La position entièrement repliée est obtenue lorsque la forme cintrée (8) de la main courante coulissante escamotable et réglable à volonté (1) vient en contact avec la bride (4). La position entièrement dépliée est réalisée lorsque la butée (9) vient en contact avec l'un des deux guides supports (2) (2').According to Figures 1 and 2, the device comprises a sliding handrail retractable and adjustable at will (1) which is formed in an inverted U, in a single piece made up of two parallel branches (12) (12 ') by example of oblong sections, of unlimited length and being closed at their upper end by a curved shape (8), for example rounded. The retractable and adjustable sliding handrail (1) slides parallel to the double uprights (3) (3 ') of the ladder (11) and to the rungs or steps (5) thanks to the two parallel branches (12) (12 ') of the retractable sliding handrail and adjustable at will (1). The hand retractable and adjustable sliding current (1) is adjacent to the inner face of the double uprights (3) (3 ') of the ladder (11) and sliding between the two support guides (2) (2 ') integral with the inner face double uprights (3) (3 ') of the ladder (11). Minimum clearance between two support guides (2) (2 '), and the double uprights (3) (3') of the ladder (11) allows the retractable sliding handrail and adjustable at will (1) to slide on the inner face of said double uprights (3) (3 '). The two extreme positions of the retractable sliding handrail and adjustable at will (1) are, on the one hand, a fully folded position and, on the other hand, a fully extended position. The position entirely folded is obtained when the curved shape (8) of the sliding handrail retractable and adjustable at will (1) comes into contact with the flange (4). The fully extended position is achieved when the stop (9) comes into contact with one of the two support guides (2) (2 ').

Selon la figure 3, l'ensemble de blocage est constitué de la plaque support (10) solidaire des doubles montants (3) (3'), de la tige fileté (7) solidaire de ladite plaque support (10), du bouton de blocage (6) et de la bride (4). Cet élément de blocage est positionné sur la partie supérieure des doubles montants (3) (3') de l'échelle (11 ). Après avoir fait coulisser la main courante coulissante escamotable et réglable à volonté (1) à la longueur désirée, le blocage de celle-ci est obtenu par la rotation du bouton de blocage (6) qui vient pousser en translation la bride (4) qui elle-même vient pousser les deux branches parallèles (12) (12') de la main courante coulissante, escamotable et réglable à volonté (1) contre les doubles montants (3) (3') de l'échelle (11 ) bloquant ainsi ladite main courante coulissante escamotable et réglable à volonté (1) dans la position souhaitée.According to Figure 3, the blocking assembly consists of the plate support (10) secured to the double uprights (3) (3 '), to the threaded rod (7) secured said support plate (10), the locking button (6) and the flange (4). This blocking element is positioned on the upper part of the double uprights (3) (3 ') of the ladder (11). After sliding the hand retractable sliding current and adjustable at will (1) to the length desired, the blocking of this is obtained by the rotation of the blocking button (6) which pushes in translation the flange (4) which itself comes push the two parallel branches (12) (12 ') of the sliding handrail, retractable and adjustable at will (1) against double uprights (3) (3 ') of the ladder (11) thus blocking said retractable sliding handrail and adjustable at will (1) in the desired position.

La rotation inverse du bouton de blocage (6) permet à la main courante coulissante escamotable et réglable à volonté (1) d'être à nouveau libérée.Reverse rotation of the locking button (6) allows the handrail sliding retractable and adjustable at will (1) to be again released.

Selon les figures 1 et 2, l'ensemble des pièces suivantes : la main courante coulissante escamotable et réglable à volonté (1 ), les deux guides supports (2) (2'), la bride (4), la plaque support (10), et le bouton de blocage (6) peuvent se fixer à droite de l'échelle (11) sur les doubles montants (3) (3') ou à gauche de l'échelle (11) sur les doubles montants (3") (3"').According to Figures 1 and 2, all of the following parts: the hand sliding retractable current and adjustable at will (1), the two guides supports (2) (2 '), the flange (4), the support plate (10), and the locking button (6) can be fixed to the right of the ladder (11) on the double uprights (3) (3 ') or to the left of the ladder (11) on the double uprights (3 ") (3"').

Selon la figure 2, la main courante coulissante escamotable et réglable à volonté (1) vient se replier en parallèle des doubles montants (3) (3') ou (3") (3"') à l'intérieur du plan de l'échelle (11 ), ce qui a pour avantage de ne créer aucune proéminence sur la face extérieure desdits doubles montants (3) (3'). La main courante coulissante escamotable et réglable à volonté (1) s'efface donc complètement dans le plan de l'échelle (11).According to Figure 2, the retractable and adjustable sliding handrail at will (1) folds back in parallel with the double uprights (3) (3 ') or (3 ") (3" ') inside the scale plane (11), which has the advantage of not create any prominence on the outside of said double uprights (3) (3 '). The retractable sliding handrail and adjustable at will (1) therefore disappears completely in the plane of the scale (11).

Selon les figures 1, 2 et 3, la main courante coulissante escamotable et réglable à volonté (1) est réalisée dans un profilé tubulaire de section plate, par exemple de section oblongue, ce qui permet qu'elle se situe en léger retrait pour éviter qu'elle ne dépasse des doubles montants (3) (3') ou (3") (3"'). Cette particularité permet que ce soit toujours les montants (3') (3"') qui portent lorsque l'on appuie l'échelle (11) sur un angle de hourdis, palier ou autre et permet ainsi de libérer le coulissement de la main courante coulissante escamotable et réglable à volonté (1 ) sans frotter et sans être coincée par ces éléments d'appuis même lorsque l'utilisateur est sur l'échelle.According to Figures 1, 2 and 3, the retractable sliding handrail and adjustable at will (1) is made in a tubular section flat, for example of oblong section, which allows it to be located in slight shrinkage to prevent it from exceeding double uprights (3) (3 ') or (3 ") (3" '). This feature allows that it is always the amounts (3 ') (3 "') which bear when the ladder (11) is pressed on a slab angle, bearing or other and thus frees the sliding of the handrail sliding retractable and adjustable at will (1) without rubbing and without be trapped by these supports even when the user is on the scale.

Claims (2)

Main courante coulissante escamotable et réglable à volonté (1) adaptable sur les matériels type échelles constituées de doubles montants (3) (3') (3") (3"') et d'échelons ou marches (5), pouvant se fixer à droite comme à gauche de l'échelle (11), voire des deux côtés, caractérisée en ce que sa forme particulière en une seule pièce en forme de U renversé dont les deux branches parallèles (12) (12') reliées en leur extrémité supérieure par une forme cintrée (8), coulisse parallèlement le long de la face intérieure des doubles montants (3) (3') de l'échelle (11) et aux échelons ou marches (5) par le moyen de deux guides supports (2) (2') solidaires des doubles montants (3) (3'), et est réglée et bloquée en position choisie au moyen d'un bouton de blocage (6) qui, grâce à une tige filetée (7) fixée sur une plaque support (10) solidaire des doubles montants (3) (3'), pousse en translation la bride (4) qui vient appliquer les deux branches parallèles (12) (12') de la main courante coulissante escamotable et réglable à volonté (1 ) contre les doubles montants (3) (3') de l'échelle (11) ; la position entièrement dépliée étant obtenue lorsque la butée (9) située à l'extrémité inférieure de la branche parallèle (12') vient en contact avec l'un des deux guides supports (2) (2'), et la position entièrement repliée étant obtenue lorsque la forme cintrée (8) vient en contact avec la bride (4) permettant ainsi à la main courante coulissante escamotable et réglable à volonté (1) de s'effacer totalement dans le plan de l'échelle (11).Sliding retractable handrail and adjustable at will (1) adaptable to ladder type equipment consisting of double uprights (3) (3 ') (3 ") (3"') and steps or steps (5), which can be fixed on the right as on the left of the ladder (11), or even on both sides, characterized in that its particular shape in a single piece in the shape of an inverted U whose two parallel branches (12) (12 ') connected at their end upper by a curved shape (8), slides parallel along the inside of the double uprights (3) (3 ') of the ladder (11) and to the rungs or steps (5) by means of two support guides ( 2) (2 ') integral with the double uprights (3) (3'), and is adjusted and locked in the chosen position by means of a locking button (6) which, thanks to a threaded rod (7) fixed on a support plate (10) integral with the double uprights (3) (3 '), pushes in translation the flange (4) which comes to apply the two parallel branches (12) (12 ') of the retractable sliding handrail and adjustable at will (1) against the double uprights (3) (3') of the ladder (11); the fully unfolded position being obtained when the stop (9) located at the lower end of the parallel branch (12 ') comes into contact with one of the two support guides (2) (2'), and the fully folded position being obtained when the curved shape (8) comes into contact with the flange (4) thus allowing the retractable sliding handrail and adjustable at will (1) to completely disappear in the plane of the scale (11). Main courante coulissante escamotable et réglable à volonté (1), suivant revendication 1, caractérisée en ce que ses deux branches parallèles (12) (12') sont réalisées dans un profilé tubulaire de section plate situé en léger retrait par rapport aux doubles montants (3) (3') de l'échelle (11) pour permettre le coulissement de la main courante coulissante escamotable et réglable à volonté (1) à l'intérieur du plan de l'échelle (11) le long des doubles montants (3) (3'), sans frottement ni coincement lorsque lesdits doubles montants (3) (3') sont en appui sur un angle de hourdis ou sur un palier, tout en s'effaçant complètement à l'intérieur du plan de l'échelle (11) lorsque ladite main courante coulissante escamotable et réglable à volonté (1) est descendue.Sliding retractable and adjustable handrail at will (1), according to claim 1, characterized in that its two parallel branches (12) (12 ') are produced in a tubular profile of flat section located slightly behind the double uprights ( 3) (3 ') of the ladder (11) to allow the sliding of the retractable sliding handrail and adjustable at will (1) inside the plane of the ladder (11) along the double uprights (3 ) (3 '), without friction or jamming when said double uprights (3) (3') are supported on a slab angle or on a landing, while completely disappearing inside the plane of the scale (11) when said retractable and adjustable sliding handrail (1) is lowered.
EP04008976A 2003-06-11 2004-04-15 Adaptable device comprising a slidable handrail, which is retractable and freely adjustable Expired - Lifetime EP1486641B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0307038 2003-06-11
FR0307038A FR2856102B1 (en) 2003-06-11 2003-06-11 CURRENT HANDRAIL SLIDING AND ADJUSTABLE WITH WILL

Publications (2)

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EP1486641A1 true EP1486641A1 (en) 2004-12-15
EP1486641B1 EP1486641B1 (en) 2008-03-12

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EP04008976A Expired - Lifetime EP1486641B1 (en) 2003-06-11 2004-04-15 Adaptable device comprising a slidable handrail, which is retractable and freely adjustable

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EP (1) EP1486641B1 (en)
AT (1) ATE389094T1 (en)
DE (1) DE602004012346T2 (en)
ES (1) ES2300675T3 (en)
FR (1) FR2856102B1 (en)
PT (1) PT1486641E (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB205412A (en) * 1923-01-10 1923-10-18 George Pickard An improved handrail for step-ladders
US2388892A (en) * 1944-05-08 1945-11-13 Columblan Rope Company Ladder
US2640641A (en) 1951-06-15 1953-06-02 Joseph S Tepper Safety rail attachment for stepladders
GB2274673A (en) 1993-01-28 1994-08-03 Kevin Walsh Step ladder
EP0940556A2 (en) 1998-03-06 1999-09-08 Scando AB Arrangement on a ladder

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB205412A (en) * 1923-01-10 1923-10-18 George Pickard An improved handrail for step-ladders
US2388892A (en) * 1944-05-08 1945-11-13 Columblan Rope Company Ladder
US2640641A (en) 1951-06-15 1953-06-02 Joseph S Tepper Safety rail attachment for stepladders
GB2274673A (en) 1993-01-28 1994-08-03 Kevin Walsh Step ladder
EP0940556A2 (en) 1998-03-06 1999-09-08 Scando AB Arrangement on a ladder

Also Published As

Publication number Publication date
PT1486641E (en) 2008-05-19
DE602004012346D1 (en) 2008-04-24
FR2856102A1 (en) 2004-12-17
ATE389094T1 (en) 2008-03-15
FR2856102B1 (en) 2005-08-26
EP1486641B1 (en) 2008-03-12
ES2300675T3 (en) 2008-06-16
DE602004012346T2 (en) 2009-03-26

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