WO2008129565A1 - Mécanisme permettant d'incliner des fauteuils ou des canapés - Google Patents

Mécanisme permettant d'incliner des fauteuils ou des canapés Download PDF

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Publication number
WO2008129565A1
WO2008129565A1 PCT/IT2007/000280 IT2007000280W WO2008129565A1 WO 2008129565 A1 WO2008129565 A1 WO 2008129565A1 IT 2007000280 W IT2007000280 W IT 2007000280W WO 2008129565 A1 WO2008129565 A1 WO 2008129565A1
Authority
WO
WIPO (PCT)
Prior art keywords
mechanism according
levers
previous
support
slide
Prior art date
Application number
PCT/IT2007/000280
Other languages
English (en)
Inventor
Renato Zorzetto
Original Assignee
Stema S.R.L.
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 Stema S.R.L. filed Critical Stema S.R.L.
Priority to PCT/IT2007/000282 priority Critical patent/WO2008129567A1/fr
Priority to PCT/IT2007/000280 priority patent/WO2008129565A1/fr
Priority to PCT/IT2007/000281 priority patent/WO2008129566A1/fr
Publication of WO2008129565A1 publication Critical patent/WO2008129565A1/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C1/00—Chairs adapted for special purposes
    • A47C1/02—Reclining or easy chairs
    • A47C1/031—Reclining or easy chairs having coupled concurrently adjustable supporting parts
    • A47C1/034—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts including a leg-rest or foot-rest
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C1/00—Chairs adapted for special purposes
    • A47C1/02—Reclining or easy chairs
    • A47C1/031—Reclining or easy chairs having coupled concurrently adjustable supporting parts
    • A47C1/034—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts including a leg-rest or foot-rest
    • A47C1/035—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts including a leg-rest or foot-rest in combination with movably coupled seat and back-rest, i.e. the seat and back-rest being movably coupled in such a way that the extension mechanism of the foot-rest is actuated at least by the relative movements of seat and backrest
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C1/00—Chairs adapted for special purposes
    • A47C1/02—Reclining or easy chairs
    • A47C1/031—Reclining or easy chairs having coupled concurrently adjustable supporting parts
    • A47C1/036—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts including a head-rest
    • A47C1/037—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts including a head-rest in combination with a leg-rest or foot-rest
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C17/00—Sofas; Couches; Beds
    • A47C17/04—Seating furniture, e.g. sofas, couches, settees, or the like, with movable parts changeable to beds; Chair beds
    • A47C17/13—Seating furniture having non-movable backrest changeable to beds by increasing the available seat part, e.g. by drawing seat cushion forward
    • A47C17/132—Seating furniture having non-movable backrest changeable to beds by increasing the available seat part, e.g. by drawing seat cushion forward with multiple seat cushions
    • A47C17/134—Seating furniture having non-movable backrest changeable to beds by increasing the available seat part, e.g. by drawing seat cushion forward with multiple seat cushions by lifting or tilting
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C17/00—Sofas; Couches; Beds
    • A47C17/04—Seating furniture, e.g. sofas, couches, settees, or the like, with movable parts changeable to beds; Chair beds
    • A47C17/16—Seating furniture changeable to beds by tilting or pivoting the back-rest
    • A47C17/20—Seating furniture changeable to beds by tilting or pivoting the back-rest thereby uncovering one or more auxiliary parts previously hidden
    • A47C17/207—Seating furniture changeable to beds by tilting or pivoting the back-rest thereby uncovering one or more auxiliary parts previously hidden with seat cushion consisting of multiple superposed parts, at least one lower hidden part being used to form part of the bed surface
    • A47C17/2076—Seating furniture changeable to beds by tilting or pivoting the back-rest thereby uncovering one or more auxiliary parts previously hidden with seat cushion consisting of multiple superposed parts, at least one lower hidden part being used to form part of the bed surface by lifting or tilting
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/36—Support for the head or the back
    • A47C7/38—Support for the head or the back for the head
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/36—Support for the head or the back
    • A47C7/40—Support for the head or the back for the back
    • A47C7/402—Support for the head or the back for the back adjustable in height

Definitions

  • the present invention relates to a mechanism for reclining armchairs or sofas, ad in particular to a mechanism which allows to recline the seat and the back of an armchair or a sofa.
  • the present invention also relates to an armchair or a sofa comprising said mechanism.
  • EP 1438909 discloses a mechanism for reclining armchairs, which comprises a seat support arid a back support which are mutually pivoted for oscillating with respect to a base, wherein the back support is mechanically connected by means of a pair of levers to a rear extension of the base arranged behind the back support. Said levers can rotate around substantially horizontal axes, while the seat support is pivoted to a carriage which can run on the base.
  • Said mechanism comprises a footrest support which allows a relatively limited number of positions of the footrest. It is therefore an object of the present invention to provide a mechanism free from said disadvantage. Said object is achieved with a mechanism, whose main features are disclosed in the first claim, while other features are disclosed in the remaining claims.
  • the mechanism according to the present invention can be provided with a footrest having a wide scope of positions with respect to the seat support.
  • the mechanism according to the present invention can easily pass from the erect position to the reclined position, and vice versa, but it keeps the erect position firmly, so as to avoid undesired movements. Thanks to its particular structure, the mechanism according to the present invention can be also easily provided with a first electric pusher for its automatic drive, as well as with a second electric pusher for the independent movement of the footrest support.
  • the mechanism according to the present invention is preferably provided with a particular headrest support synchronized with the movement of the back support.
  • figure 1 shows a side view of the mechanism in an erect position
  • - figure 2 shows a top view of the mechanism of figure 1
  • figure 3 shows a side view of the mechanism in a reclined position
  • figure 4 shows a top view of the mechanism of figure 3
  • figure 5 shows an enlarged side view of an upper portion of the mechanism of figure 1
  • - figure 6 shows an enlarged front view of the portion of figure 5
  • figure 7 shows an enlarged side view of an upper portion of the mechanism of figure 3
  • figure 8 shows an enlarged front view of the portion of figure 7
  • figure 9 shows a side view of the mechanism with the extended footrest
  • - figure 10 shows a top view of the mechanism of figure 9
  • figure 11 shows a side view of the mechanism with the extended and lifted footrest
  • figure 12 shows a top view of the mechanism of figure 11
  • figure 13 shows a side view of an
  • the mechanism according to the present invention comprises in a known way at least one seat support 1 and one back support 2 which are mutually pivoted for oscillating with respect to a base 3 by means of one or more levers suitable for rotating around substantially horizontal axes.
  • Base 3 comprises a rear extension 4 arranged behind back support 2.
  • Seat support 1 can oscillate around a substantially horizontal axis A and run on this axis by means of one or more wheels 5 (shown with broken lines) which can rotate around the same axis A.
  • Wheels 5 are rotatably mounted on a fixed crossbar 6 mounted on base 3 under seat support 1.
  • Wheels 5 can run along auxiliary guides Ia arranged along the sides of a front portion of seat support 1.
  • Seat support 1 is mechanically connected to base 3 by means of one or more first levers 7, in particular a pair of levers 7 pivoted to the sides of seat support 1 and of base 3 for rotating around substantially horizontal axes.
  • the distance between the pivoting points of seat support 1 to back support 2 and to first levers 7 is shorter than the half of the depth of seat support 1.
  • the pivoting point of seat support 1 to first levers 7 is close to the pivoting point of seat support 1 to back support 2.
  • Back support 2 is mechanically connected to rear extension 4 by means of one or more second levers 8, in particular a pair of levers 8 pivoted to the sides of back support 2 and of rear extension 4 for rotating around substantially horizontal axes.
  • the distance between the upper end of back support 2 and the pivoting point of back support 2 to second levers 8 is shorter than the half of the height of back support 2.
  • the pivoting point of back support 2 to second levers 8 is close to the upper end of back support 2.
  • a first pusher 9 driven by an electric motor 10 is pivoted to a crossbar of rear extension 4 for oscillating around a substantially horizontal axis with respect to base 3.
  • the mobile member 11 of first pusher 9 moves along a longitudinal axis and is connected to a first mobile crossbar 12 (shown with broken lines in figure 1) having the ends provided with side appendixes 13 pivoted to first levers 7, so that first pusher 9 can extend or retract seat support 1 and back support 2 for changing from an erect to a reclined position, or vice versa.
  • Side appendixes 13 are pivoted to first levers 7 between the pivoting points of the latter to seat support 1 and to base 3.
  • One or more longitudinal guides 14 are mounted under seat support 1 by means of a structure comprising one or more uprights 15, 16 and/or crossbars 17, 18.
  • a slide 19 can run in a longitudinal direction along longitudinal guides 14 for protruding in front of seat support 1.
  • angle B comprised between first levers 7 and a longitudinal half-line H extending forwards from their pivoting point to base 3 is obtuse.
  • a second pusher 20 driven by an electric motor 21 is fixed to a crossbar 22 arranged under seat support 1, in particular between longitudinal guides 14.
  • the mobile member of second pusher 20 moves along a longitudinal axis and is connected to a second mobile crossbar 23 in turn connected to slide 19 by means of one or more longitudinal rods 24, so that second pusher 20 can extend or retract slide 19 under seat support 1 in a longitudinal direction.
  • a footrest support 25 is mounted in a mobile manner on slide 19 by means of one or more pairs of crossed levers 26, 27 pivoted to each other in a central zone and having an end pivoted to slide 19 or to footrest support 25, respectively.
  • the other end of the pairs of crossed levers 26, 27 is provided with wheels 28, 29 (shown with broken lines) suitable for running longitudinally in guides fixed to slide 19 or to footrest support 25, respectively, so that the mutual rotation of the pairs of crossed levers 26, 27 acts as a pantograph for lifting or lowering the footrest support 25 with respect to slide 19.
  • a headrest support 30 can run along one or more upper guides 31 pivoted to back support 2, wherein one or more upper levers 32 are pivoted to headrest support 30 and to rear extension 4 for rotating around a substantially horizontal axis.
  • Upper guides 31 are mechanically connected to rear extension 4 through one or more auxiliary levers 33 suitable for rotating around a substantially horizontal axis.
  • Rear extension 4, upper guides 31, upper levers 32 and auxiliary levers 33 form articulated quadrilaterals.
  • One or more elastic pulling means 34 are arranged under seat support 1 in a substantially longitudinal position.
  • a longitudinal bar 35 connects crossbars 17, 18 fixed under seat support 1.
  • first pusher 9 moves forwards mobile member 11, first mobile crossbar 12 and side appendixes 13, so as to rotate forwards first levers 7 with respect to base 3 and push forwards seat support 1, which runs on wheels 5.
  • seat support 1 inclines backwards and back support 2 is pulled forwards by seat support 1, so that it also lowers and inclines backwards.
  • angle C comprised between first levers 7 and longitudinal half-line H is acute and smaller than the supplementary angle of angle B 5 i.e. 180°-B>C.
  • the upper portion 4a of rear extension 4 is bent forwards.
  • second pusher 20 moves forward second mobile crossbar 23 and longitudinal rods 24, so as to move forward slide 19 with respect to seat support 1 along longitudinal guides 14.
  • Slide 19 is pivoted to cursors 36 which also run in longitudinal guides 14, so that when slide 19, pushed forward by second pusher 20, comes out of the front end of longitudinal guides 14, cursors 36 connect slide 19 to longitudinal guides 14.
  • Slide 19, being out of longitudinal guides 14, is however free of rotating downward around a substantially horizontal axis, until it rests on the ground thanks to one or more feet 37 preferably provided with wheels with a substantially horizontal axis.
  • Longitudinal rods 24 are pivoted to at least one of crossed levers 26, 27, in particular levers 27 provided with wheels 29 running in the guides fixed to slide 19.
  • Cursors 36 are provided with stop means for preventing a further forward movement after slide 19 has come out of longitudinal guides 14.
  • second pusher 20 when second pusher 20 continues its forward movement up to a stop position of second mobile crossbar 23, longitudinal rods 24 push levers 27 of crossed levers 26, 27, while slide 19 cannot move forward because of the stop means of cursors 36, so that crossed levers 26, 27 rotate mutually, thereby lifting footrest support 25 from slide 19.
  • second pusher 20 stretches elastic pulling means 34, which are fixed between the front end of longitudinal rod 24 and cursors 36, so as to prevent the lifting of footrest support 25 when cursors 36 have not reached the relevant stop means, i.e. when slide 19 is still under seat support 1.
  • a seat 41, a back 42, a footrest 43 and a headrest 44 can be mounted on seat support 1, back support 2, footrest support 25 and headrest support 30, respectively, so as to move with the latter during the change from the erect to the reclined position of the mechanism, and vice versa.
  • This movement is represented by the arrows of figure 13.
  • Slide 19 can be pivoted to cursors 36 through friction means, so as to keep slide 19 lifted and changing angle E comprised between seat support 1 and footrest support 25, for inclining at will footrest 43 in the direction of the arrow of figure 14.
  • angle E is comprised between 170° and 220°.
  • cursors 36 can be integral with slide 19, so that footrest support 25 remains always substantially parallel to seat support 1. For changing from the reclined position to the erect position of the mechanism it is sufficient to drive the pushers in the opposite direction.

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • Nursing (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)

Abstract

La présente invention concerne un mécanisme permettant d'incliner des fauteuils ou des canapés, ledit mécanisme comprenant au moins un support d'assise (1) et un support de dossier (2) qui pivotent mutuellement pour osciller par rapport à une base (3), une coulisse (19) pouvant s'étendre dans une direction longitudinale le long d'un ou de plusieurs guides longitudinaux (14) fixés au support d'assise (1) pour déployer ou rétracter un support de repose-pieds (25) fixé de manière mobile sur la coulisse (19). La présente invention concerne également un fauteuil ou un canapé comprenant ledit système.
PCT/IT2007/000280 2007-04-18 2007-04-18 Mécanisme permettant d'incliner des fauteuils ou des canapés WO2008129565A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
PCT/IT2007/000282 WO2008129567A1 (fr) 2007-04-18 2007-04-18 Mécanisme permettant d'incliner des fauteuils ou des canapés
PCT/IT2007/000280 WO2008129565A1 (fr) 2007-04-18 2007-04-18 Mécanisme permettant d'incliner des fauteuils ou des canapés
PCT/IT2007/000281 WO2008129566A1 (fr) 2007-04-18 2007-04-18 Mécanisme permettant d'incliner des fauteuils ou des canapés

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
PCT/IT2007/000282 WO2008129567A1 (fr) 2007-04-18 2007-04-18 Mécanisme permettant d'incliner des fauteuils ou des canapés
PCT/IT2007/000280 WO2008129565A1 (fr) 2007-04-18 2007-04-18 Mécanisme permettant d'incliner des fauteuils ou des canapés
PCT/IT2007/000281 WO2008129566A1 (fr) 2007-04-18 2007-04-18 Mécanisme permettant d'incliner des fauteuils ou des canapés

Publications (1)

Publication Number Publication Date
WO2008129565A1 true WO2008129565A1 (fr) 2008-10-30

Family

ID=43382404

Family Applications (3)

Application Number Title Priority Date Filing Date
PCT/IT2007/000281 WO2008129566A1 (fr) 2007-04-18 2007-04-18 Mécanisme permettant d'incliner des fauteuils ou des canapés
PCT/IT2007/000282 WO2008129567A1 (fr) 2007-04-18 2007-04-18 Mécanisme permettant d'incliner des fauteuils ou des canapés
PCT/IT2007/000280 WO2008129565A1 (fr) 2007-04-18 2007-04-18 Mécanisme permettant d'incliner des fauteuils ou des canapés

Family Applications Before (2)

Application Number Title Priority Date Filing Date
PCT/IT2007/000281 WO2008129566A1 (fr) 2007-04-18 2007-04-18 Mécanisme permettant d'incliner des fauteuils ou des canapés
PCT/IT2007/000282 WO2008129567A1 (fr) 2007-04-18 2007-04-18 Mécanisme permettant d'incliner des fauteuils ou des canapés

Country Status (1)

Country Link
WO (3) WO2008129566A1 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012022847A1 (fr) * 2010-08-20 2012-02-23 S.F.M. Fauteuil de relaxation
WO2016092248A1 (fr) * 2014-12-11 2016-06-16 Integrated Furniture Technologies Limited Meuble réglable
AU2013267019B2 (en) * 2012-12-07 2018-06-14 King Furniture Australia Pty Ltd An article of furniture
US10932584B2 (en) 2015-03-11 2021-03-02 Motus Mechanics Limited Adjustable bed
US11395549B2 (en) 2018-08-09 2022-07-26 Eevolv Ltd Drive mechanism
LU102820B1 (fr) * 2021-06-08 2022-12-08 Sacha Lakic Design S A R L Meuble pour s'assoir permettant la transformation en chaise longue
DE102014118538B4 (de) 2014-12-12 2023-02-23 Hans Segmüller Polstermöbelfabrik GmbH & Co. KG Sitzmöbel mit ausfahrbarer Fußstütze
US11812857B2 (en) 2016-06-13 2023-11-14 Motus Mechanics Limited Adjustable furniture

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202017103410U1 (de) 2017-06-07 2017-07-05 Ciar S.P.A. Sitz- und Liegemöbel
PL131012U1 (pl) * 2022-09-29 2024-04-02 Stalmot & Wolmet Spółka Z Ograniczoną Odpowiedzialnością Podnośnik meblowy

Citations (4)

* Cited by examiner, † Cited by third party
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US2278458A (en) * 1940-06-10 1942-04-07 Us Cabinet Bed Co Combination seat and interchangeable back
US2328411A (en) * 1940-08-02 1943-08-31 Superior Felt & Bedding Co Convertible couch structure
US3147037A (en) * 1963-02-04 1964-09-01 Anton Lorenz Head-rest mounting and actuating arrangement
EP1512346A1 (fr) * 2003-09-08 2005-03-09 Hans Fiedler Meuble rembourré convertible avec fonctions fauteuil et lit

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US3880462A (en) * 1974-01-30 1975-04-29 Philip Mednick Reclining chair
DE3347255C2 (de) * 1983-12-28 1986-08-14 E M D A Fabrik elektro-medizinischer und dentaler Apparate Georg Hartmann GmbH & Co KG, 6000 Frankfurt Zahnärztlicher Patientenstuhl mit Kopfstütze
FR2609877B1 (fr) * 1987-01-23 1989-04-21 Tousalon France Sa Dispositif de manoeuvre pour fauteuil, siege ou canape a positions multiples comportant un cale-reins
NO20013342A (no) * 2001-07-05 2002-12-02 Ekornes Asa To-trinns trekkelement
DE20116145U1 (de) * 2001-10-02 2001-11-29 Himolla Polstermoebel Werk Fußstütze für ein Sitz-/Liegemöbel
DE20319483U1 (de) * 2003-12-16 2004-03-11 Ferdinand Lusch Gmbh & Co Kg Mit einer verstellbaren Rückenlehne versehenes Sitzmöbel
DE202004013904U1 (de) * 2004-09-03 2004-11-18 Stanzwerk Wetter Sichelschmidt Gmbh & Co. Kg Sitzmöbel
DE102005000854B3 (de) * 2005-01-05 2006-04-27 Kintec Solution Gmbh Sitzmöbel mit verstellbarer Kopfstütze

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2278458A (en) * 1940-06-10 1942-04-07 Us Cabinet Bed Co Combination seat and interchangeable back
US2328411A (en) * 1940-08-02 1943-08-31 Superior Felt & Bedding Co Convertible couch structure
US3147037A (en) * 1963-02-04 1964-09-01 Anton Lorenz Head-rest mounting and actuating arrangement
EP1512346A1 (fr) * 2003-09-08 2005-03-09 Hans Fiedler Meuble rembourré convertible avec fonctions fauteuil et lit

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012022847A1 (fr) * 2010-08-20 2012-02-23 S.F.M. Fauteuil de relaxation
AU2013267019B2 (en) * 2012-12-07 2018-06-14 King Furniture Australia Pty Ltd An article of furniture
WO2016092248A1 (fr) * 2014-12-11 2016-06-16 Integrated Furniture Technologies Limited Meuble réglable
WO2016092249A1 (fr) * 2014-12-11 2016-06-16 Integrated Furniture Technologies Limited Meuble réglable
CN107205551A (zh) * 2014-12-11 2017-09-26 整装家具科技有限公司 可调节家具
CN107249391A (zh) * 2014-12-11 2017-10-13 整装家具科技有限公司 可调节家具
US10334951B2 (en) 2014-12-11 2019-07-02 Dewertokin Gmbh Adjustable furniture
DE102014118538B4 (de) 2014-12-12 2023-02-23 Hans Segmüller Polstermöbelfabrik GmbH & Co. KG Sitzmöbel mit ausfahrbarer Fußstütze
US10932584B2 (en) 2015-03-11 2021-03-02 Motus Mechanics Limited Adjustable bed
US11812857B2 (en) 2016-06-13 2023-11-14 Motus Mechanics Limited Adjustable furniture
US11395549B2 (en) 2018-08-09 2022-07-26 Eevolv Ltd Drive mechanism
LU102820B1 (fr) * 2021-06-08 2022-12-08 Sacha Lakic Design S A R L Meuble pour s'assoir permettant la transformation en chaise longue

Also Published As

Publication number Publication date
WO2008129566A1 (fr) 2008-10-30
WO2008129567A1 (fr) 2008-10-30

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