EP3409144A1 - Chaise, notamment chaise de conférence ou de bureau ainsi que procédé de fabrication d'une chaise - Google Patents

Chaise, notamment chaise de conférence ou de bureau ainsi que procédé de fabrication d'une chaise Download PDF

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Publication number
EP3409144A1
EP3409144A1 EP18172103.6A EP18172103A EP3409144A1 EP 3409144 A1 EP3409144 A1 EP 3409144A1 EP 18172103 A EP18172103 A EP 18172103A EP 3409144 A1 EP3409144 A1 EP 3409144A1
Authority
EP
European Patent Office
Prior art keywords
support
chair
seat
translation
backrest
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
EP18172103.6A
Other languages
German (de)
English (en)
Other versions
EP3409144B1 (fr
Inventor
Klaus Maier
Judith Daur
Carlo Shayeb
Falk Blümler
Philipp Müller
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.)
Sedus Stoll AG
Original Assignee
Sedus Stoll AG
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 Sedus Stoll AG filed Critical Sedus Stoll AG
Publication of EP3409144A1 publication Critical patent/EP3409144A1/fr
Application granted granted Critical
Publication of EP3409144B1 publication Critical patent/EP3409144B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • A47C1/032—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest
    • A47C1/03261—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means
    • A47C1/03277—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means with bar or leaf springs
    • 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
    • A47C1/032—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest
    • A47C1/03255—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest with a central column, e.g. rocking office chairs

Definitions

  • the present invention relates to a chair, in particular a conference or office chair, and a method for producing such a chair.
  • Office swivel chairs exist with a variety of configurations of a pan or synchronous mechanism.
  • a synchronous mechanism provides a precise sequence of movements and has an integrated spring, which provides a bias for the movement.
  • An office swivel chair with swivel mechanism is for example in the document US 2002/0149247 A1 described.
  • Base and handlebars such a pivot mechanism are designed relatively massive. Overall, therefore, it requires a relatively large amount of space, so that the entire structure of such an office swivel chair below the seat support acts very massive, which is particularly disadvantageous in design aspects.
  • the present invention seeks to provide an improved chair, in particular conference or office chair.
  • the chair in question should be both high quality, as well as easy and cheap to produce. Due to these properties, alternative uses, for example in the private sector, can be opened up if necessary.
  • this object is achieved by a chair having the features of patent claim 1 and / or by a method having the features of patent claim 16.
  • the idea underlying the present invention is a flexible-elastic memory element arranged in the region of the translation by means of which the chair in question is synchronously or synchronously pivotable as a force storage element for a predetermined sequence of movements during pivoting of the backrest support and thus coupled via the translation Insert seat carrier.
  • the mentioned flexible-elastic memory member is coupled to the seat support and the backrest support.
  • the storage member When pivoting the storage member is stretched and transmits such a the backrest support and the seat support of the support device in the upright position restoring force.
  • the storage member is able to replace a biasing spring in the translation area.
  • the structure of the chair can thus be made much slimmer, which is aesthetically pleasing and thus advantageous from a design point of view.
  • the flexible-elastic memory member together with at least a first articulated pivot point of the translation forms a kinematic chain, so that the memory member according to the invention is integrated in an advantageous manner in the transmission of movements and torques in loading and unloading the chair according to the invention ,
  • the provided on the support storage member of the translation thus forms a planar gear.
  • the translation is provided in particular as a replacement for a conventional synchronizing mechanism and preferably operates synchronously similar, so that when pivoting in a predetermined sequence of movements as described in a synchronous mechanism. Accordingly, the backrest support and the seat support pivot in a predetermined manner in each case in absolute terms and relative to each other. The seat support and the backrest support thus pivot different degrees. Furthermore, the seat support is preferably lifted slightly.
  • the functionality of a synchronous mechanism with the known advantages, such as avoiding the shirt pull-out effect and the like, thus advantageously remains from a user's perspective.
  • the storage member designed as a force storage element also undergoes elastic deformation during the backward pivoting due to the ever increasing prestress and thus likewise describes a certain course of movement.
  • the translation besides only the first articulated pivot also have the first and a second pivot point, which are part of the kinematic chain.
  • the backrest support can be designed to be pivotable relative to two different arms or legs of the storage element, wherein one of these legs can form, for example, the seat support of the support device.
  • the flexible-elastic memory member can image at least two pivot points of the kinematic chain or the memory member comprise at least two virtual pivot points.
  • the storage member is for example designed so flexible that exposures of the chair are implemented by receiving a person sitting in elastic material deformations of the storage member, which can be reinterpreted mechanically in rotation about only virtually existing fulcrums.
  • These virtual pivot points are arranged along the structure of the storage member, their juxtaposition with the real articulated pivot points of the translation forms a polygon and is combined with the articulated pivot points of the translation to the kinematic chain.
  • the translation is coupled to a seat base.
  • the translation thus provides a force deflection between the backrest support, seat support and seat base and for this purpose has a first and a second pivot point, of which at least the at least one articulated pivot point of the transmission is coupled to the seat base and is fixed relative thereto.
  • the translation can have a first virtual and a second virtual pivot point, which are encompassed by the memory element; the at least one articulated pivot point with a second articulated pivot point arranged on the memory element is connected to one another via a first link and the two virtual pivot points are connected to one another via a second link Coupled link, the first link is fixedly connected to the backrest support or formed integrally with the backrest support.
  • This may therefore be a quadrangular, in particular parallelogram-like structure of the translation with one fixed to the seat base and the seat support hinged pivot point.
  • the translation comes without sliding joint or slide guide and is thus free of scenes.
  • the motion sequence of a synchronous mechanism is realized with a very slim design.
  • the backrest support at the at least one articulated pivot point with respect to the seat base to be rotatably mounted, and the memory member or the associated seat support at a free end either with the second articulated Be provided pivot point at which this rotatably connected to the backrest support is, or be flexibly connected to the backrest support, in particular via a web.
  • the connection of the seat support to the storage member formed a third virtual fulcrum and the translation then has only one "real" hinged fulcrum, namely the at least one previously mentioned.
  • the flexible-elastic memory member connected to the seat support formed on this or provided integrally formed therewith.
  • the seat support of the chair can form part of the storage member and form by its elastic training a part of the force accumulator, which in turn builds up the restoring force and makes available.
  • the storage member of the translation with an elastically deformable plastic material in particular a fiber-reinforced plastic, be formed, which shows on the memory member in a suitable manner, the flexible elastic property.
  • the storage member having the seat support may have a curved shape, which in the rest position of the chair approximately at an acute angle between 1 ° and 40, preferably between 10 ° and 30 °, in particular of 25 °
  • At least one armrest carrier in particular on each chair side in each case an armrest carrier may be arranged on the support means which or which may be connected to the seat support and / or the backrest support.
  • the armrest carrier can also be interconnected, for example, a common connection can be performed below the seat support and connected in addition to this.
  • the respective armrest support may be provided for supporting an armrest body or only an armrest pad.
  • the armrest carrier can also directly form an armrest body.
  • the translation on a first stop which limits a pivoting range of the seat support and backrest support in the upright position such that upon reaching the stop a backrest support and abuts the seat support in the upright position on the stop holding bias of the storage member.
  • the backrest is upright in this position.
  • a preferred location for placement of the stop may be in the vicinity of the second hinged pivot, if present, so that the stop is close to the seat carrier. In this way, about a standing in contact with the stop handlebar would not be burdened with excessively strong moments.
  • the translation on a second stop which limits the pivoting range of the seat support and backrest support in a maximum pivoted position and / or the translation may be provided with a locking element, which seat support and backrest support in a selectable pivoted position against at least one Movement direction determines.
  • the second articulated pivot point or a third virtual pivot point may be arranged in a rear area and the second virtual pivot point in a front area of the seat carrier, wherein the second link has a greater length and / or a greater inclination than the first link , In this way, the seat support is raised more in pivoting from the upright to the rearwardly pivoted position in the front region than in the rear region, so that the seat support is easily pivoted backwards.
  • the length and / or inclination of the first and second link are each provided such that a ratio of a pivot angle of the backrest support to a pivot angle of the seat support in the pivoted to the rear position 2 to 1 to 4 to 1, in particular 3 to 1 , is.
  • the backrest support pivotable 21 ° to the rear, while the seat support is pivotable by 7 ° to the rear.
  • An independent height positioning of the sitting position allows, for example, a development in the chair according to the invention, in which a manipulatable height adjustment device is connected to the storage member, which can be actuated via a handle arranged in the region of the seat support and handle. It is able to manipulate a height adjustment device, for example in the form of a gas spring, according to the respective request, even when the chair is occupied.
  • adjustable seating positions may be arranged in a further embodiment of the seat support, a seat member which is provided fixed or fixed or slidably provided by a guide means along the seat support ,
  • a guide means may be formed, for example, on the seat carrier (2) arranged guide or similar guide rail.
  • Fig.1 to 3 Turning to this, they each show a designated as a whole with 1 chair, which is exemplified as office swivel chair with a stand 35 with rollers 26 is formed.
  • a support means 4 of the chair 1 is arranged.
  • the support means 4 of the chair is provided with a seat support 2 and a backrest support 3 and with a seat support 2 with the backrest support 3 coupling translation 5.
  • the translation 5 allows pivoting of the backrest support 3 and the seat support 2 between an upright and a backward pivoted position with a predetermined movement.
  • a flexible-elastic memory member 8 is provided and adapted, which provides upon application of the support means 4 a restoring force in the upright position, also forms the flexible-elastic memory member 8 together with at least a first articulated pivot point 10 of the translation 5 a kinematic chain 15.
  • the mentioned kinematic chain 15 is the characteristic of the system formed by the gear ratio 5, which constitutes a gear and is responsible for the transmission of movements and torques. This is best based on the Figure 3 comprehensible to the chair of Fig.1 with its first pivot point 10 and its second articulated pivot point 11 shows next to it, the other virtual pivot points 12, 13, which are present in the structure of the memory member 8 and to perform which rotational movements the flexible-elastic memory member 8 due to its shape in Interaction with its material properties is capable.
  • the translation 5 has a first virtual and a second virtual Fulcrum 12, 13, which are encompassed by the storage member 8, and the first articulated pivot point 10 is coupled to the arranged on the memory member 8 second pivot point 11 via a first link 16, indicated by the dashed connection of the two pivot points 10, 11 in the Fig.1 and 3 ,
  • the two virtual pivot points 12, 13 are coupled together, via a second link 16, clarifies only in the Figure 3 by dashed lines.
  • the dashed connection of the second articulated pivot point 11 with the one of the virtual pivot points 12 is merely to make clear their coupling to the kinematic chain 15.
  • the aforementioned first link 16 is fixedly connected to the backrest support 3, in the Fig.1 and 3 he is even integrally formed with the backrest support 3.
  • a chair 1 according to the invention in which compared to the representations of Fig.1 and 3 the second articulated pivot point 11 is replaced by a third virtual pivot point 14 at approximately the same place on the memory member 8 or seat support 2, which, as before the other virtual pivot points 12. 13, is integrated into the structure of the memory member 8, so that the kinematic Chain 15 is preserved.
  • the imageability into virtual pivot points 12, 13, 14 of the memory element 8 of the translation 5 to the chair 1 of Fig.2 is, as before with the Fig.1 and 3 the formation of the storage member 8 in an elastic deformable material, here attributable to a fiber-reinforced plastic material.
  • This can be formed for example by a polyamide.
  • the chair 1 in the Figure 4 In such respects, as shown on the support 4 initially only the translation 5 available storage member 8 is shown, which is fixedly connected to the seat base 9.
  • the storage member 8 has a kind of curved frame 18, the frame portions 18a-18d rotate around a recess 19.
  • the storage member 8 In an imaginary plane projection from the side, similar to the views of the Figure 7 , Form the two sides of the chair associated frame sections 18b, 18c each for a curved frame side with an upper and a lower leg 20, 21, of which the lower leg 21 will form the second arm 16 of the kinematic chain 15 to be built on the chair.
  • the storage member 8, which has a curved shape in the mentioned projection in the rest position of the chair 1 with the two legs 20, 21 approximately at an acute angle in the order of 25 °.
  • the chair 1 is also provided with a seat support 2, so that the seat support 2 and the backrest support 3 are coupled via the translation 5 of the storage member 8.
  • the backrest support 3 is rotatably mounted on the at least one articulated pivot point 10 with respect to the seat base 9 and that the storage member 8 or the seat support 2 connected thereto is provided with either the second articulated pivot 11 in an end region of its upper leg 20 is, on which it is rotatably connected to the backrest support 3.
  • Fig.2 is not the coupling of this end portion of the upper leg 20 of the memory member 8 as in the Fig.5 to 7 realized via a second pivot point 11, but via a further virtual pivot point 15, so that the storage member 8 or the seat support 2 arranged thereon is rotatably connected to the backrest support 3 via a web 22.
  • the aforementioned web 22 then forms the first link 16, so this, in contrast to the embodiments with two articulated pivot points 10, 11, not "directly" part of the backrest support.
  • the memory member 8 is integrally formed with the backrest support 3, the first link 16 is formed at least in this sense as part of the backrest support 3.
  • the upper leg 20 of the storage member 8 is with its free end, the web 22 and the Link 16 forms, with application of the bias voltage with the located in the region of the seat base 9, pivot point 10 is connected.
  • the backrest support 3 is essentially formed by a backrest frame 30, which in turn rotates a recess 31 and, for example, a non-illustrated padding or a textile support braid can wear.
  • the flexible-elastic memory member 8 is connected to the seat support 2, which in turn with a in the Figure 7 shown seat cushion 32 can be equipped as a seat element. Not shown here is the sliding guide of the seat element.
  • the translation 5 of the storage member 8 determines the movement of the support means with the seat support 2 and the backrest support 3 in a pivoting from the upright position in a pivoted backward position, as they are common in the Figure 7 are shown, the latter position is shown in dashed lines.
  • the storage member 8 can be seen formed and arranged such that it allows the predetermined by the translation 5 movement of the seat support 2 and the backrest support 3.
  • the storage member 8 provides the force returning to the upright position throughout the course of movement, moreover because of the bias coupling, this force will also be in the upright position.
  • Both links 16 and 17 are inclined forward in both the upright position, as in the rearward pivoted position, so that a weight of a person sitting on the chair 1 person causes a restoring moment and designed as a force storage element storage member 8 thus only has to work against the backrest force ,
  • the pivoted backward position is achieved by a person sitting on the chair 1 person leaning backwards and thus applying a reclining force on the backrest support 3, which overcomes a spring force of the storage member 8.
  • the seat surface formed by the seat support 2 provided with a seat cushion 32 is slightly raised overall and in addition also pivoted, but to a much lesser extent compared to the backrest support 3.
  • the memory member 8 is, as one also best in the Figure 7 recognizes, loaded in its tensioned state both on pressure and on bending and thus elastically compressed and bent.
  • the pivoted to the rear position of the support means 4 is achieved by a person sitting on the chair 1 person leaning backwards and thus applying a reclining force on the backrest support 3, which overcomes a spring force of the storage member 8.
  • These are in the region of the first or, if present, second articulated pivot point 10, 11 in the form of stop wedges provided, which are supported in the upright position and in the pivoted position at respectively suitable points.
  • the stops are arranged and designed such that, for example, when the first stop is reached, a bias of the storage member 8 holding the backrest support 3 and the seat support 2 in the upright position is still present. In this way, for example, a defined position of the translation 5, the seat support 2 and the backrest support 3 is ensured even in the upright position.

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  • Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Chairs Characterized By Structure (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)
EP18172103.6A 2017-05-30 2018-05-14 Chaise, notamment chaise de conférence ou de bureau ainsi que procédé de fabrication d'une chaise Active EP3409144B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102017209041.3A DE102017209041A1 (de) 2017-05-30 2017-05-30 Stuhl, insbesondere Konferenz- oder Bürostuhl sowie Verfahren zur Herstellung eines Stuhls

Publications (2)

Publication Number Publication Date
EP3409144A1 true EP3409144A1 (fr) 2018-12-05
EP3409144B1 EP3409144B1 (fr) 2020-07-08

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EP18172103.6A Active EP3409144B1 (fr) 2017-05-30 2018-05-14 Chaise, notamment chaise de conférence ou de bureau ainsi que procédé de fabrication d'une chaise

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EP (1) EP3409144B1 (fr)
DE (1) DE102017209041A1 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3622860A1 (fr) * 2018-09-17 2020-03-18 Sedus Stoll AG Chaise pivotante, en particulier chaise de conférence ou de bureau
IT202000002332A1 (it) * 2020-02-06 2021-08-06 Donati Spa Meccanismo di oscillazione per una sedia o una poltroncina
US11109683B2 (en) 2019-02-21 2021-09-07 Steelcase Inc. Body support assembly and method for the use and assembly thereof
CN113520091A (zh) * 2020-04-20 2021-10-22 博克1有限责任两合公司 用于坐具的装置
US11357329B2 (en) 2019-12-13 2022-06-14 Steelcase Inc. Body support assembly and methods for the use and assembly thereof
US11617444B2 (en) 2020-03-02 2023-04-04 Steelcase Inc. Body support assembly and methods for the use and assembly thereof
DE102021126162A1 (de) 2021-10-08 2023-04-13 Bock 1 Gmbh & Co. Kg Mechanik für ein Sitzmöbel, insbesondere für einen Bürostuhl
US11812870B2 (en) 2021-02-10 2023-11-14 Steelcase Inc. Body support structure
US12022950B2 (en) 2020-02-06 2024-07-02 Donati S.P.A. Oscillation mechanism for a chair or armchair

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020103317B4 (de) 2020-02-10 2024-05-16 Angela Eberhardt Dreidimensional beweglicher Dreh- oder Bürostuhl

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29704906U1 (de) * 1997-03-18 1997-05-22 Interstuhl Büromöbel GmbH & Co. KG, 72469 Meßstetten Stuhl, insbesondere Bürostuhl
EP1230876A1 (fr) * 2001-02-12 2002-08-14 Interstuhl Büromöbel GmbH & Co. KG Meuble d'assise
US20020149247A1 (en) 1999-04-09 2002-10-17 Niels Diffrient Ergonomic chair
WO2008000295A1 (fr) * 2006-06-30 2008-01-03 Eckhard Hansen Siège
JP2013132403A (ja) * 2011-12-27 2013-07-08 Kokuyo Co Ltd 椅子
DE102016217503A1 (de) 2016-09-14 2018-03-15 Sedus Stoll Ag Stuhl, insbesondere Konferenz- oder Bürostuhl, Verfahren zur Herstellung eines Stuhls

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29704906U1 (de) * 1997-03-18 1997-05-22 Interstuhl Büromöbel GmbH & Co. KG, 72469 Meßstetten Stuhl, insbesondere Bürostuhl
US20020149247A1 (en) 1999-04-09 2002-10-17 Niels Diffrient Ergonomic chair
EP1230876A1 (fr) * 2001-02-12 2002-08-14 Interstuhl Büromöbel GmbH & Co. KG Meuble d'assise
WO2008000295A1 (fr) * 2006-06-30 2008-01-03 Eckhard Hansen Siège
JP2013132403A (ja) * 2011-12-27 2013-07-08 Kokuyo Co Ltd 椅子
DE102016217503A1 (de) 2016-09-14 2018-03-15 Sedus Stoll Ag Stuhl, insbesondere Konferenz- oder Bürostuhl, Verfahren zur Herstellung eines Stuhls

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3622860A1 (fr) * 2018-09-17 2020-03-18 Sedus Stoll AG Chaise pivotante, en particulier chaise de conférence ou de bureau
US11602223B2 (en) 2019-02-21 2023-03-14 Steelcase Inc. Body support assembly and methods for the use and assembly thereof
US11910934B2 (en) 2019-02-21 2024-02-27 Steelcase Inc. Body support assembly and methods for the use and assembly thereof
US11109683B2 (en) 2019-02-21 2021-09-07 Steelcase Inc. Body support assembly and method for the use and assembly thereof
US11805913B2 (en) 2019-12-13 2023-11-07 Steelcase Inc. Body support assembly and methods for the use and assembly thereof
US11357329B2 (en) 2019-12-13 2022-06-14 Steelcase Inc. Body support assembly and methods for the use and assembly thereof
US11786039B2 (en) 2019-12-13 2023-10-17 Steelcase Inc. Body support assembly and methods for the use and assembly thereof
WO2021156672A1 (fr) * 2020-02-06 2021-08-12 Donati S.P.A. Mécanisme d'oscillation pour une chaise ou un fauteuil
IT202000002332A1 (it) * 2020-02-06 2021-08-06 Donati Spa Meccanismo di oscillazione per una sedia o una poltroncina
US12022950B2 (en) 2020-02-06 2024-07-02 Donati S.P.A. Oscillation mechanism for a chair or armchair
US11617444B2 (en) 2020-03-02 2023-04-04 Steelcase Inc. Body support assembly and methods for the use and assembly thereof
EP3900577A1 (fr) * 2020-04-20 2021-10-27 BOCK 1 GmbH & Co. KG Élément et dispositif pour un siège
EP3900578A1 (fr) * 2020-04-20 2021-10-27 BOCK 1 GmbH & Co. KG Dispositif pour un siège
CN113520091A (zh) * 2020-04-20 2021-10-22 博克1有限责任两合公司 用于坐具的装置
US11812870B2 (en) 2021-02-10 2023-11-14 Steelcase Inc. Body support structure
DE102021126162A1 (de) 2021-10-08 2023-04-13 Bock 1 Gmbh & Co. Kg Mechanik für ein Sitzmöbel, insbesondere für einen Bürostuhl

Also Published As

Publication number Publication date
DE102017209041A1 (de) 2018-12-06
EP3409144B1 (fr) 2020-07-08

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