EP2617937A1 - Raising device for ladder, steps or working platform - Google Patents

Raising device for ladder, steps or working platform Download PDF

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Publication number
EP2617937A1
EP2617937A1 EP12290023.6A EP12290023A EP2617937A1 EP 2617937 A1 EP2617937 A1 EP 2617937A1 EP 12290023 A EP12290023 A EP 12290023A EP 2617937 A1 EP2617937 A1 EP 2617937A1
Authority
EP
European Patent Office
Prior art keywords
extensions
uprights
assembly
latches
sliding
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
EP12290023.6A
Other languages
German (de)
French (fr)
Other versions
EP2617937B1 (en
Inventor
Bertrand Cupif
Teddy Sannier
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.)
Macc SA
Original Assignee
Macc SA
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 Macc SA filed Critical Macc SA
Priority to ES12290023.6T priority Critical patent/ES2524157T3/en
Priority to PT12290023T priority patent/PT2617937E/en
Priority to EP20120290023 priority patent/EP2617937B1/en
Publication of EP2617937A1 publication Critical patent/EP2617937A1/en
Application granted granted Critical
Publication of EP2617937B1 publication Critical patent/EP2617937B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • E06C1/14—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
    • E06C1/32—Ladders with a strut which is formed as a ladder and can be secured in line with the ladder
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C7/00—Component parts, supporting parts, or accessories
    • E06C7/06—Securing devices or hooks for parts of extensible ladders
    • 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

Definitions

  • the ladder, step or platform type of equipment used are often equipped with adjustable telescopic legs to achieve greater working heights. These devices lose the torsional stiffness necessary for long-term strength.
  • the aim of this invention is to remedy these shortcomings by creating a complete and rigid set of steps, sliding extensions and base.
  • U-shaped sliding extensions makes it possible to produce a solution that is resistant to bending and that is economical thanks to the method of fixing the step to these extensions.
  • the figure 1 presents an amount in perspective equipped with a telescopic extension in intermediate position.
  • the figure 2 presents the product in perspective.
  • the figure 3 presents a perspective post equipped with a telescopic extension viewed from the side in the intermediate position.
  • the figure 4 has a perspective amount equipped with a telescopic extension intermediate position locking side of the amount.
  • the figure 5 has a perspective amount equipped with a telescopic extension in low and locked position.
  • the figure 6 has a perspective post equipped with a telescopic extension in low position and unlocked.
  • the sliding walking assembly (1) is composed of a step (9) linked by four screws (10, 10 ', 10 ", 10"') with two extensions (2 and 2 '). These extensions slide around the uprights (4 and 4 ') and are integral with the base (5) which supports two bearing pads (6 and 6'). The two uprights (4 and 4 ') are linked in this case to a platform (19).
  • the indexing system of the sliding run assembly (1) is formed by two latches (3 and 3 ') which, pushed by two springs (8 and 8') sliding in two yokes (14 and 14 ') related to walking (9), go through the amounts (4 and 4 ') via indexing holes (11, 12 or 13) and their opposite (11', 12 'or 13') depending on the chosen height and come docking in another hole (15 or 15 ') made in the extensions (2 and 2') thus blocking the sliding step assembly (1).
  • the latches (3 and 3 ') are actuated by the user's hand which with the thumb and the index finger can catch the two C-shaped ends (16, 16') of the two locks (3 and 3 ') at the same time.
  • the user unlocks the system and can then without releasing the locks (3 and 3 ') by pulling along an axis parallel to the uprights (4 , 4 ') slide the slide assembly (1) and thus position it so as to make the end of the latches (3 and 3') coincide with one of the indexing holes (11, 11 ', 12, 12 'or 13, 13') of the uprights (4 and 4 ').
  • the locking takes place at the new working height of the platform (19).
  • each extension (2 and 2 ') is identical in symmetrical manner to obtain a simple and rigid mounting.
  • These extensions (2, 2 ') are made by a U-shaped sheet which slides on the outside of the uprights (4, 4') blocking them on three sides of its profile.
  • the folds (17, 17', 17 “, 17”') allow to dock the step (9).
  • the screws (10, 10 ', 10 ", 10"') connect the step (9) to the extensions (2, 2 ') which makes it possible to imprison the uprights (4, 4') leaving only one possible translation along its length.
  • This fastening system also makes it possible to prevent the sheet metal U formed of the extensions (2, 2 ') from opening under the force when the user is on the platform (19) or the step (9). ).
  • the lower ends (18, 18 ') of the extensions (2, 2') are integral with the base (5) thus avoiding the U extensions (2, 2 ') to open under the effort .
  • the complete system consisting of the step (9), extensions (2 and 2 ') and the base (5) allows a rigid frame resistant to transverse forces and torsion existing during access and use of the platform (19).

Landscapes

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

Abstract

The assembly (1) has two bolts (3, 3') pushed by two springs (8, 8') sliding in two clevises (14, 14') connected to a step (9). The bolts traverse posts (4, 4') via indexing holes based on a chosen height, and approach bores in extension pieces (2, 2') to lock the assembly. C-shaped ends of the bolts are held by thumb and index of a user to actuate the bolts. The bolts are brought closer by compression of the springs to unlock the assembly, and the assembly is slid and positioned to match the ends with the holes, without slackening the bolts by drawing along an axis parallel to the posts.

Description

Pour satisfaire la variabilité de hauteurs d'intervention, les matériels utilisés du type échelle, marchepied ou plate-forme sont souvent équipés de pieds télescopiques réglables permettant d'atteindre des hauteurs de travail plus grandes. Ces dispositifs font perdre de la rigidité en torsion nécessaire pour la résistance à long terme.In order to meet the variability of intervention heights, the ladder, step or platform type of equipment used are often equipped with adjustable telescopic legs to achieve greater working heights. These devices lose the torsional stiffness necessary for long-term strength.

De plus, il faut souvent plusieurs manipulations pour modifier la hauteur.In addition, it often takes several manipulations to change the height.

Cette invention a pour but de remédier à ces insuffisances en créant un ensemble complet et rigide de marche, rallonges coulissantes et base.The aim of this invention is to remedy these shortcomings by creating a complete and rigid set of steps, sliding extensions and base.

De plus, une disposition de forme et de position des verrous permet de déverrouiller l'ensemble et le faire coulisser d'une seule main et sans reprise, ce qui permet un gain de temps.In addition, a provision of shape and position of the locks can unlock all and slide with one hand and without recovery, which saves time.

Une autre disposition de fabrication des rallonges coulissantes en forme de U permet de réaliser une solution résistant à la flexion et économique grâce à la modalité de fixation de la marche à ces rallonges.Another provision for manufacturing the U-shaped sliding extensions makes it possible to produce a solution that is resistant to bending and that is economical thanks to the method of fixing the step to these extensions.

La figure 1 présente un montant en perspective équipé d'une rallonge télescopique en position intermédiaire.The figure 1 presents an amount in perspective equipped with a telescopic extension in intermediate position.

La figure 2 présente le produit en perspective.The figure 2 presents the product in perspective.

La figure 3 présente un montant en perspective équipé d'une rallonge télescopique vue de côté en position intermédiaire.The figure 3 presents a perspective post equipped with a telescopic extension viewed from the side in the intermediate position.

La figure 4 présente un montant en perspective équipé d'une rallonge télescopique en position intermédiaire côté verrouillage du montant.The figure 4 has a perspective amount equipped with a telescopic extension intermediate position locking side of the amount.

La figure 5 présente un montant en perspective équipé d'une rallonge télescopique en position basse et verrouillée.The figure 5 has a perspective amount equipped with a telescopic extension in low and locked position.

La figure 6 présente un montant en perspective équipé d'une rallonge télescopique en position basse et déverrouillée.The figure 6 has a perspective post equipped with a telescopic extension in low position and unlocked.

Selon les figures 1, 2, 3 et 4, l'ensemble marche coulissante (1) est composée d'une marche (9) liée par quatre vis (10, 10', 10", 10"') à deux rallonges (2 et 2'). Ces rallonges coulissent autour des montants (4 et 4') et sont solidaires de la base (5) qui supporte deux tampons d'appui (6 et 6'). Les deux montants (4 et 4') sont liés dans le cas présent à une plate-forme (19).According to figures 1 , 2 , 3 and 4 , the sliding walking assembly (1) is composed of a step (9) linked by four screws (10, 10 ', 10 ", 10"') with two extensions (2 and 2 '). These extensions slide around the uprights (4 and 4 ') and are integral with the base (5) which supports two bearing pads (6 and 6'). The two uprights (4 and 4 ') are linked in this case to a platform (19).

Selon les figures 5 et 6, le système d'indexation de l'ensemble marche coulissante (1) est réalisé par deux verrous (3 et 3') qui, poussés par deux ressorts (8 et 8') coulissant dans deux chapes (14 et 14') liées à la marche (9), traversent les montants (4 et 4') via des trous d'indexation (11, 12 ou 13) et leurs opposés (11', 12' ou 13') en fonction de la hauteur choisie et viennent accoster dans un autre perçage (15 ou 15') réalisé dans les rallonges (2 et 2') bloquant ainsi l'ensemble marche coulissante (1).According to Figures 5 and 6 , the indexing system of the sliding run assembly (1) is formed by two latches (3 and 3 ') which, pushed by two springs (8 and 8') sliding in two yokes (14 and 14 ') related to walking (9), go through the amounts (4 and 4 ') via indexing holes (11, 12 or 13) and their opposite (11', 12 'or 13') depending on the chosen height and come docking in another hole (15 or 15 ') made in the extensions (2 and 2') thus blocking the sliding step assembly (1).

Toujours selon les figures 4, 5 et 6, les verrous (3 et 3') sont actionnés par la main de l'utilisateur qui avec le pouce et l'index peut attraper les deux extrémités en forme de C (16, 16') des deux verrous (3 et 3') en même temps. En rapprochant ces verrous (3 et 3') par compression des ressorts (8 et 8'), l'utilisateur déverrouille le système et peut alors sans relâcher les verrous (3 et 3') en tirant suivant un axe parallèle aux montants (4, 4') faire coulisser l'ensemble marche coulissante (1) et ainsi positionner ce dernier de façon à faire coïncider l'extrémité des verrous (3 et 3') avec un des trous d'indexation (11, 11', 12, 12' ou 13, 13') des montants (4 et 4'). En relâchant les deux verrous (3 et 3') le verrouillage s'effectue à la nouvelle hauteur de travail de la plate-forme (19).Still according to figures 4 , 5 and 6 , the latches (3 and 3 ') are actuated by the user's hand which with the thumb and the index finger can catch the two C-shaped ends (16, 16') of the two locks (3 and 3 ') at the same time. By bringing these locks (3 and 3 ') together by compression of the springs (8 and 8'), the user unlocks the system and can then without releasing the locks (3 and 3 ') by pulling along an axis parallel to the uprights (4 , 4 ') slide the slide assembly (1) and thus position it so as to make the end of the latches (3 and 3') coincide with one of the indexing holes (11, 11 ', 12, 12 'or 13, 13') of the uprights (4 and 4 '). By releasing the two locks (3 and 3 ') the locking takes place at the new working height of the platform (19).

Selon les figures 3 et 4, chaque rallonge (2 et 2') est réalisée de manière identique symétriquement pour obtenir un montage simple et rigide. Ces rallonges (2, 2') sont réalisées par une tôle formée en U qui coulisse à l'extérieur des montants (4, 4') les bloquant sur trois côtés de son profil.According to figures 3 and 4 each extension (2 and 2 ') is identical in symmetrical manner to obtain a simple and rigid mounting. These extensions (2, 2 ') are made by a U-shaped sheet which slides on the outside of the uprights (4, 4') blocking them on three sides of its profile.

Selon les figures 3 et 4, à l'extrémité supérieure des rallonges (2, 2') les plis (17, 17', 17", 17"') permettent d'accoster la marche (9). Les vis (10, 10', 10", 10"') lient la marche (9) aux rallonges (2, 2') ce qui permet d'emprisonner les montants (4, 4') en ne lui laissant qu'une translation possible suivant sa longueur. Ce système de fixation permet aussi d'éviter que le U en tôle formée des rallonges (2, 2') ne s'ouvre sous l'effort lorsque l'utilisateur se trouve sur la plate-forme (19) ou la marche (9). De même, les l'extrémités inférieures (18, 18') des rallonges (2, 2') sont solidaires de la base (5) évitant ainsi aux U des rallonges (2, 2') de s'ouvrir sous l'effort.According to figures 3 and 4 , at the upper end of the extensions (2, 2 ') the folds (17, 17', 17 ", 17"') allow to dock the step (9). The screws (10, 10 ', 10 ", 10"') connect the step (9) to the extensions (2, 2 ') which makes it possible to imprison the uprights (4, 4') leaving only one possible translation along its length. This fastening system also makes it possible to prevent the sheet metal U formed of the extensions (2, 2 ') from opening under the force when the user is on the platform (19) or the step (9). ). Similarly, the lower ends (18, 18 ') of the extensions (2, 2') are integral with the base (5) thus avoiding the U extensions (2, 2 ') to open under the effort .

Selon les figures 3 et 4, le système complet composé de la marche (9), des rallonges (2 et 2') et de la base (5) permet de réaliser un cadre rigide résistant aux efforts transversaux et de torsion existant lors de l'accès et l'utilisation de la plate-forme (19).According to figures 3 and 4 , the complete system consisting of the step (9), extensions (2 and 2 ') and the base (5) allows a rigid frame resistant to transverse forces and torsion existing during access and use of the platform (19).

Claims (2)

Ensemble marche coulissante (1) pour échelle, marchepied ou plate-forme composé d'une marche (9) liée par quatre vis (10, 10', 10", 10"') à deux rallonges (2, 2') et de deux montants (4, 4') caractérisé en ce que deux verrous (3, 3') poussés par deux ressorts (8, 8') coulissant dans deux chapes (14, 14') liés à la marche (9) traversent les montants (4, 4') via des trous d'indexation (11, 11', 12, 12', 13, 13') en fonction de la hauteur choisie et viennent accoster dans un perçage (15 ou 15') réalisé dans les rallonges (2, 2') bloquant ainsi l'ensemble marche coulissante (1) ; les verrous (3, 3') sont actionnés par la main de l'utilisateur qui, avec le pouce et d'index, peut attraper les deux extrémités en forme de C (16, 16') des deux verrous (3, 3') en rapprochant ces verrous (3, 3') par compression des ressorts (8, 8') l'utilisateur déverrouille le système et peut alors, sans relâcher les verrous (3, 3') en tirant suivant un axe parallèle aux montants (4, 4') faire coulisser l'ensemble marche coulissante (1) et ainsi positionner ce dernier de façon à faire coïncider l'extrémité des verrous (3, 3') avec les trous d'indexation (11, 11', 12, 12', ou 13, 13') des montants (4, 4').Sliding step assembly (1) for a ladder, step or platform consisting of a step (9) linked by four screws (10, 10 ', 10 ", 10"') with two extensions (2, 2 ') and two uprights (4, 4 ') characterized in that two latches (3, 3') pushed by two springs (8, 8 ') sliding in two yokes (14, 14') connected to the step (9) pass through the uprights (4, 4 ') via indexing holes (11, 11', 12, 12 ', 13, 13') as a function of the chosen height and come docking in a hole (15 or 15 ') made in the extensions (2, 2 ') thereby blocking the sliding step assembly (1); the latches (3, 3 ') are actuated by the hand of the user who, with the thumb and forefinger, can catch the two C-shaped ends (16, 16') of the two locks (3, 3 ') ) by bringing these latches (3, 3 ') together by compression of the springs (8, 8') the user unlocks the system and can then, without releasing the latches (3, 3 ') by pulling along an axis parallel to the uprights ( 4, 4 ') slide the slide assembly (1) and thus position it so as to make the end of the latches (3, 3') coincide with the indexing holes (11, 11 ', 12, 12 ', or 13, 13') of the uprights (4, 4 '). Ensemble marche coulissante (1) pour échelle, marchepied ou plate-forme selon revendication 1, caractérisé en ce que les rallonges (2, 2') réalisées par une tôle formée en U recouvrant les montants (4, 4') à l'extrémité de ces rallonges (2, 2') se trouvent des plis (17, 17') et (17", 17"') permettant d'accoster la marche (9) liée aux rallonges (2, 2') respectivement par des vis (10, 10') et (10", 10"') permettant ainsi d'emprisonner les montants (4, 4') en ne leur laissant aucune translation possible suivant leur longueur et d'éviter que le U en tôle formée dans les rallonges (2, 2') ne s'ouvre sous l'effort lorsque l'utilisateur se trouve sur la marche (9) ou sur la plate-forme (19). Les extrémités inférieures (18, 18') des rallonges (2, 2') sont solidaires d'une base (5) évitant aux U de s'ouvrir sous l'effort.Sliding step assembly (1) for ladder, step or platform according to claim 1, characterized in that the extensions (2, 2 ') made by a U-shaped sheet metal covering the uprights (4, 4') at the end of these extensions (2, 2 ') are folds (17, 17') and (17 ", 17"') making it possible to dock the step (9) connected to the extensions (2, 2') respectively by screws (10, 10 ') and (10 ", 10"') thus making it possible to imprison the uprights (4, 4 ') by not allowing them any possible translation along their length and to prevent that the sheet metal U formed in them Extensions (2, 2 ') do not open under effort when the user is on the step (9) or on the platform (19). The lower ends (18, 18 ') of the extensions (2, 2') are integral with a base (5) preventing the U from opening under the force.
EP20120290023 2012-01-18 2012-01-18 Raising device for ladder, steps or working platform Active EP2617937B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
ES12290023.6T ES2524157T3 (en) 2012-01-18 2012-01-18 Lifting device for ladder, ladder or work platform
PT12290023T PT2617937E (en) 2012-01-18 2012-01-18 Raising device for ladder, steps or working platform
EP20120290023 EP2617937B1 (en) 2012-01-18 2012-01-18 Raising device for ladder, steps or working platform

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20120290023 EP2617937B1 (en) 2012-01-18 2012-01-18 Raising device for ladder, steps or working platform

Publications (2)

Publication Number Publication Date
EP2617937A1 true EP2617937A1 (en) 2013-07-24
EP2617937B1 EP2617937B1 (en) 2014-08-20

Family

ID=45531265

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20120290023 Active EP2617937B1 (en) 2012-01-18 2012-01-18 Raising device for ladder, steps or working platform

Country Status (3)

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EP (1) EP2617937B1 (en)
ES (1) ES2524157T3 (en)
PT (1) PT2617937E (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104806155A (en) * 2015-02-27 2015-07-29 徐浩钟 Ladder for pruning in garden
CN107202227A (en) * 2017-07-21 2017-09-26 重庆高铁计量检测有限公司 A kind of projection arrangement and its application method
CN111594028A (en) * 2020-05-25 2020-08-28 宁波冶金勘察设计研究股份有限公司 Anti-falling escape ladder for foundation pit

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4298093A (en) * 1978-11-16 1981-11-03 Little Giant Industries, Inc. Sawhorse
DE29917711U1 (en) * 1999-10-07 2000-02-03 Mauderer Alutechnik Gmbh Load distribution module for roof ladders
US6032759A (en) * 1998-08-03 2000-03-07 Dofair Company, Ltd Ladder with anti-deformed side rails
GB2366829A (en) * 2001-09-27 2002-03-20 Nigel Parker Ladder stabilising strut
US20030188923A1 (en) * 2002-04-05 2003-10-09 Moss Newell Ryan Light weight ladder systems and methods
US20040140156A1 (en) * 2002-11-11 2004-07-22 Moss Newell R. Combination ladders, ladder components and methods of manufacturing same
WO2010128340A2 (en) * 2009-05-08 2010-11-11 Stuart Arnold Fall prevention system and access ladder

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4298093A (en) * 1978-11-16 1981-11-03 Little Giant Industries, Inc. Sawhorse
US6032759A (en) * 1998-08-03 2000-03-07 Dofair Company, Ltd Ladder with anti-deformed side rails
DE29917711U1 (en) * 1999-10-07 2000-02-03 Mauderer Alutechnik Gmbh Load distribution module for roof ladders
GB2366829A (en) * 2001-09-27 2002-03-20 Nigel Parker Ladder stabilising strut
US20030188923A1 (en) * 2002-04-05 2003-10-09 Moss Newell Ryan Light weight ladder systems and methods
US20040140156A1 (en) * 2002-11-11 2004-07-22 Moss Newell R. Combination ladders, ladder components and methods of manufacturing same
WO2010128340A2 (en) * 2009-05-08 2010-11-11 Stuart Arnold Fall prevention system and access ladder

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104806155A (en) * 2015-02-27 2015-07-29 徐浩钟 Ladder for pruning in garden
CN107202227A (en) * 2017-07-21 2017-09-26 重庆高铁计量检测有限公司 A kind of projection arrangement and its application method
CN111594028A (en) * 2020-05-25 2020-08-28 宁波冶金勘察设计研究股份有限公司 Anti-falling escape ladder for foundation pit
CN111594028B (en) * 2020-05-25 2021-11-05 宁波冶金勘察设计研究股份有限公司 Anti-falling escape ladder for foundation pit

Also Published As

Publication number Publication date
PT2617937E (en) 2014-10-09
EP2617937B1 (en) 2014-08-20
ES2524157T3 (en) 2014-12-04

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