EP3238571B1 - Sesselrahmen mit verbesserter struktur - Google Patents

Sesselrahmen mit verbesserter struktur Download PDF

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Publication number
EP3238571B1
EP3238571B1 EP16184876.7A EP16184876A EP3238571B1 EP 3238571 B1 EP3238571 B1 EP 3238571B1 EP 16184876 A EP16184876 A EP 16184876A EP 3238571 B1 EP3238571 B1 EP 3238571B1
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EP
European Patent Office
Prior art keywords
rod
leg
rotating
chair frame
activating
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.)
Active
Application number
EP16184876.7A
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English (en)
French (fr)
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EP3238571A1 (de
Inventor
Ma Jianhui
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.)
Dongguan Jackwell Hardware Co Ltd
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Dongguan Jackwell Hardware Co Ltd
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Publication of EP3238571A1 publication Critical patent/EP3238571A1/de
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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
    • A47C1/034—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
    • A47C1/0355—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 actuated by linkages, e.g. lazy-tongs mechanisms
    • 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
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C20/00—Head -, foot -, or like rests for beds, sofas or the like
    • A47C20/08—Head -, foot -, or like rests for beds, sofas or the like with means for adjusting two or more rests simultaneously

Definitions

  • the present invention relates to the technical field of a framework of a sofa chair, and in particular to a sofa chair frame with an improved structure.
  • sofa is applicable to various aspects of life, for example, offices, living rooms, bedrooms, outdoors and the like.
  • a wider variety of furniture are used in daily life, and the requirements on the functions of furniture are higher.
  • sofas such as lifting sofas, rotatable sofas, leisure sofa chairs suitable for the elder are much more popular due to the diverse functions, convenient use, comfortable and healthy property thereof.
  • Those different sofas mentioned above can function as traditional sofas, and also, they can be flexibly adjusted according to a user's requirements of usage so as to meet a user's different requirements of usage.
  • a sofa chair frame known from the prior art is disclosed in DE3101329A1 or in WO2015/066943A1 .
  • an interior transmission mechanism and a supporting mechanism serve as the framework.
  • the transmission mechanism and the supporting mechanism are adjusted to put a sofa in different states, so as to adjust different functions of the sofa.
  • the existing sofa underframes are complicated in the structure of the interior mechanism, complex in the assembly process, and high in cost.
  • An objective of the present invention is to provide, with regard to defects in the prior art, a sofa chair frame with an improved structure.
  • the present invention employs the following technical solutions.
  • a sofa chair frame as defined in claim 1 is provided, including an underframe structure, a leg structure, a back structure and an activating device; the leg structure and the back structure are respectively connected to the underframe structure; and the activating devices are respectively in an activating connection with the leg structure and the back structure.
  • the sofa chair frame also includes a linkage mechanism, two ends of which are respectively connected to the leg structure and the back structure.
  • the linkage mechanism includes a rotating rod of a leg, a linkage rod, a rotating rod of a back and a swinging rod. One end of the rotating rod of the leg is connected to the leg structure, and the other end of the rotating rod of the leg is connected to the linkage rod.
  • the swinging rod is provided on an outer side of the linkage rod; one end of the linkage rod is connected to the swinging rod by a rotating shaft, and the other end of the linkage rod is connected to the swinging rod by a connecting rod structure. Two ends of the linkage rod are connected to the underframe structure.
  • the leg structure includes: a back rod of the leg, one end of which is connected to the underframe structure; a support rod of the leg, one end of which is connected to the rotating rod of the leg; a stretchable rod of the leg, one end of which is connected to the other end of the back rod of the leg; a transmission rod of the leg, one end of which is connected to the other end of the support rod of the leg; and a connection rod of the leg, one end of which is connected to the other end of the transmission rod of the leg; a locking rod of the leg and a front rod of the leg, one end of the locking rod of the leg being connected to the other end of the connection rod of the leg, the other end of the locking rod of the leg being connected to the front rod of the leg.
  • the sofa chair frame also includes: a brace of the leg, a lug being provided on the brace of the leg, two ends of the lug being respectively connected to the other end of the stretchable rod of the leg and the front rod of the leg; and after components of the leg structure are collapsed, the components are in a folded state and located beneath the underframe structure.
  • the leg structure may also include an intermediate fixing rack of the leg, which is located in the intermediate of the stretchable rod of the leg and connected to the stretchable rod of the leg.
  • the back structure may include: a fixing rack of the back mounted on the underframe structure; a rotating rack of the back, one end of which is connected to the fixing rack of the back and the other end of which is connected to the rotating rod of the back; a supporting frame of the back, including a back rod and a leaning rod which are integrated, one end of the back rod being connected to the fixing rack of the back, the other end of the back rod being connected to the rotating rack of the back by a joint.
  • the structure of the back may also include a mounting rack of the back, one end of which is connected to the swinging rod and the other end of which is connected to the underframe structure.
  • a stopping bump may be provided at an end of the rotating rack of the back close to the joint; and the stopping bump is located inside the connection portion between the fixing rack of the back and the rotating rack of the back.
  • the underframe structure may include a front beam connected to the leg structure; a back beam connected to the back structure; an intermediate frame connected to the linkage rod; and a seat mounting rack, two ends of which are connected to the leg structure and the back structure, respectively.
  • the seat mounting rack is a bent sheet metal part and has a " ⁇ "-shaped cross section.
  • the activating device may include an activating stretchable rod, two ends of which are connected to the front beam and the back beam respectively by a fixing lug; an activating motor mounted to the activating stretchable rod, the activating motor being in an activating connection with the activating stretchable rod; and the activating device is located above the underframe structure.
  • the underframe structure may also include: a tension spring, one end of which is connected to the back beam and the other end of which is connected to a positioning column protruded from the linkage rod.
  • Power may be provided by an activating device; a leg structure and a back structure are driven by a linkage mechanism, and in this way, the leg structure and the back structure can be retracted and stretched; with the linkage rod, by only providing a rotating shaft at one end to be connected to the swinging rod and providing a common connecting rod structure to be connected to the swinging rod, power can be transmitted between the leg structure and the back structure. That is, adjustment between the linkage mechanism and the leg structure as well as back structure can be achieved.
  • the linkage mechanism is simple in structure, convenient in assembly, and effective in simplifying the process flow and saving the raw material, thus greatly reducing the production cost.
  • a sofa chair frame may be provided, including an underframe structure, a leg structure, a back structure and an activating device; the leg structure and the back structure are respectively connected to the underframe structure; and the activating devices are respectively in an activating connection with the leg structure and the back structure.
  • the sofa chair frame also includes a linkage mechanism, two ends of which are respectively connected to the leg structure and the back structure.
  • the linkage mechanism includes a rotating rod of the leg 51, a linkage rod 52, a rotating rod of the back 53 and a swinging rod 54. One end of the rotating rod of the leg 51 is connected to the leg structure, and the other end of the rotating rod of the leg 51 is connected to the linkage rod 52.
  • the swinging rod 54 is provided on an outer side of the linkage rod 52; one end of the linkage rod 52 is connected to the swinging rod 54 by a rotating shaft 55, and the other end of the linkage rod 52 is connected to the swinging rod 54 by a connecting rod structure 56. Two ends of the linkage rod 52 are connected to the underframe structure.
  • Power is provided by an activating device; the leg structure and the back structure are driven by an linkage mechanism, and in this way, the leg structure and the back structure may be retracted and stretched; with the linkage rod 52, by only providing a rotating shaft 55 at one end to be connected to the swinging rod 54 and providing a common connecting rod structure 56 at the other end to be connected to the swinging rod 54, power can be transmitted between the leg structure and the back structure. That is, adjustment between the linkage mechanism and the leg structure as well as the back structure can be achieved. Two ends of the linkage rod 52 are connected to the underframe structure to further ensure that the linkage rod 52 is stable. In this way, the linkage mechanism becomes simple in structure, convenient in assembly, and effective in simplifying the process flow and saving the raw material, thus greatly reducing the production cost.
  • the leg structure includes: a back rod of the leg 21, one end of which is connected to the underframe structure; a support rod of the leg 22, one end of which is connected to the rotating rod of the leg 51; a stretchable rod of the leg 23, one end of which is connected to the other end of the back rod of the leg 21; a transmission rod of the leg 24, one end of which is connected to the other end of the support rod of the leg 22; a connection rod of the leg 25, one end of which is connected to the other end of the transmission rod of the leg 24; and a locking rod of the leg 26 and a front rod of the leg 27, one end of the locking rod of the leg 26 being connected to the other end of the connection rod of the leg 25, the other end of the locking rod of the leg 26 being connected to the front rod of the leg 27.
  • the sofa chair frame may also include: a brace of the leg 28, a lug 281 being provided on the brace of the leg 28, two ends of the lug 281 being respectively connected to the other end of the stretchable rod of the leg 23 and the front rod of the leg 27. After components of the leg structure are collapsed, the components are in a folded state and located beneath the underframe structure.
  • the leg structure may be formed of a plurality of components which are pivoted successively. First, a pivot end is extended from the back rod of the leg 21 connected with the underframe structure, and another pivot end is extended from the support rod of the leg 22 connected with the rotating rod of the leg 51. Then, the pivot end extended from the back rod of the leg 21 is continuously connected to the stretchable rod of the leg 23, and the another pivot end extended from the support rod of the leg 22 is continuously connected to the transmission rod of the leg 24, the connection rod of the leg 25, the locking rod of the leg 26 and the front rod of the leg 27.
  • a brace of the leg 28 is provided at the two pivot ends near the front rod of the leg 27, and the brace of the leg 28 is respectively pivoted to the two pivot ends, so that the whole leg structure is stretched and retracted. Since a plurality of components are successively extended forward by two pivot ends, the leg can be unfolded when the leg structure is stretched; and when the leg structure is retracted, the leg can be folded successively, so that a thin assembly can be formed after the leg structure is retracted and then stored beneath the underframe structure without occupying the space between the underframe structure and the ground.
  • Such a compact structure can effectively save space, further provide the sofa chair frame with good breathability and ventilation after the sofa chair frame is assembled into a sofa, and reduce dust.
  • the structure is not only elegant in appearance, but also can prolong the service life of the leg structure.
  • the leg structure may also include an intermediate fixing rack of the leg 29, which is located in the intermediate of the stretchable rod of the leg 23 and connected to the stretchable rod of the leg 23.
  • An intermediate fixing rack of the leg 29 is provided in the intermediate portion of the leg structure when stretched, i.e., at the stretchable rod of the leg 23. After the leg structure is stretched, the leg structure can be provided with high load-bearing capability, and the comfort in use can be effectively improved.
  • the back structure may include: a fixing rack of the back 31 mounted on the underframe structure; a rotating rack of the back 32, one end of which is connected to the fixing rack of the back 31 and the other end of which is connected to the rotating rod of the back 53; a supporting frame of the back 33, including a back rod 331 and a leaning rod 332 which are integrated, one end of the back rod 331 being connected to the fixing rack of the back 31, the other end of the back rod 331 being connected to the rotating rack of the back 32 by a joint 34.
  • the back structure may be mounted on the underframe structure by the fixing rack of the back 31.
  • the two pivot ends form a retractable enclosed structure by means of the support rack of the back 33, the joint 34 and the rotating rack of the back 32. In this way, for the back structure, the angle of the back can also be adjusted according to a user's requirements, thus manifesting the multi-functionality.
  • the back structure may also include a mounting rack of the back 35, one end of which is connected to the swinging rod 54 and the other end of which is connected to the underframe structure.
  • the back structure is further mounted between the swinging rod 54 and the underframe structure in the form of a mounting rack of the back 35, so that the angle of the back structure is adjusted within a certain range. In this way, the adjustment of the back structure is safer.
  • a stopping bump 321 may be provided at an end of the rotating rack of the back 32 close to the joint 34; and the stopping bump 321 is located inside the connection portion between the fixing rack of the back 31 and the rotating rack of the back 32.
  • the underframe structure may include a front beam 11 connected to the leg structure; a back beam 12 connected to the back structure; an intermediate frame 13 connected to the linkage rod 52; and a seat mounting rack 14, two ends of which are connected to the leg structure and the back structure, respectively.
  • the underframe structure mainly consists of the front beam 11, the back beam 12, the intermediate frame 13 and the seat mounting rack 14.
  • the underframe structure is mainly used to bear the major sofa structure.
  • the underframe structure also includes: a tension spring 15, one end of which is connected to the back beam 12 and the other end of which is connected to the positioning column 521 protruded from the linkage rod 52. Since the tension spring 15 is elastic, tension between the linkage rod 52 and the underframe structure can be strengthened. In addition, the structure is easy to restore to the original position, and thus highly practicable.
  • the seat mounting rack 14 is a bent sheet metal part with a " ⁇ "-shaped cross section.
  • the seat mounting rack 14 is set as a structure of a bent sheet metal part, so that a plane thereof for bearing the major sofa structure is increased, that is, a plane of the seat mounting rack 14 facing upward is increased.
  • the seat mounting racks 14 are almost single sheet metal parts or have a narrow plane facing upward.
  • the sofa chair frame can provide better balance when bearing the major sofa structure, and can facilitate mounting of the major sofa structure. In this way, the practicability of the sofa chair frame is further enhanced.
  • the activating device includes an activating stretching rod 41, two ends of which are connected to the front beam 11 and the back beam 12 by the fixing lug 411; and the activating motor 42 which is mounted on the activating stretchable rod 41 and in an activation connection with the activating stretchable rod 41.
  • the activating device is located above the underframe structure and provides activating force by the activating motor 42.
  • the stretch amount of the activating stretchable rod 41 is adjusted according to the unfolding extent of the leg structure and the back structure. In this way, the whole leg structure and the back structure are effectively driven.
  • Pivot members are provided at all pivot positions of the components, for realizing connections between the components, and will not be enumerated. This is well known to those skilled in the art.

Landscapes

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

Claims (9)

  1. Sofastuhlrahmen, umfassend eine Unterrahmenstruktur, eine Beinstruktur, eine Rückenstruktur und eine Aktivierungsvorrichtung, wobei die Beinstruktur und die Rückenstruktur jeweils mit der Unterrahmenstruktur verbunden sind, wobei die Aktivierungsvorrichtung jeweils in einer aktivierenden Verbindung mit der Beinstruktur und mit der Rückenstruktur steht, wobei der Sofastuhlrahmen auch umfasst:
    einen Kopplungsmechanismus, dessen beide Enden jeweils mit der Beinstruktur verbunden und mit der Rückenstruktur verbunden sind, wobei der Kopplungsmechanismus eine rotierende Stange (51) eines Beins umfasst, eine Kopplungsstange (52), eine rotierende Stange (53) des Rückens und eine Schwingstange (54), wobei ein Ende der rotierenden Stange (51) des Beins verbunden ist mit der Beinstruktur und das andere Ende der rotierenden Stange (51) des Beins verbunden ist mit der Kopplungsstange (52), wobei ein Ende der rotierenden Stange (53) des Rückens mit der Rückenstruktur verbunden ist und das andere Ende der rotierenden Stange (53) des Rückens mit der Schwingstange (54) verbunden ist, wobei die Schwingstange (54) an einer äußeren Seite der Kopplungsstange (52) angeordnet ist, wobei ein Ende der Kopplungsstange (52) mit der Schwingstange (54) über eine rotierende Welle (55) verbunden ist und das andere Ende der Kopplungsstange (52) mit der Schwingstange (54) über eine Verbindungsstangenstruktur (56) verbunden ist und die beiden Enden der Kopplungsstange (52) mit der Unterrahmenstruktur verbunden sind, wobei die Beinstruktur umfasst:
    eine Rückenstange (21) des Beins, deren eines Ende mit der Unterrahmenstruktur verbunden ist, eine Tragstange (22) des Beins, deren eines Ende mit der rotierenden Stange (51) des Beins verbunden ist, eine ausziehbare Stange (23) des Beins, deren eines Ende mit dem anderen Ende der Rückenstange (21) des Beins verbunden ist, eine Übertragungsstange (24) des Beins, deren eines Ende mit dem anderen Ende der Tragstange (22) des Beins verbunden ist, eine Verbindungsstange (25) des Beins, deren eines Ende mit dem anderen Ende der Übertragungsstange (24) des Beins verbunden ist und eine Verriegelungsstange (26) des Beins und eine Vorderstange (27) des Beins, wobei ein Ende der Verriegelungsstange (26) des Beins mit dem anderen Ende der Verbindungsstange (25) des Beins verbunden ist, wobei das andere Ende der Verriegelungsstange (26) des Beins mit der Vorderstange (27) des Beins verbunden ist,
    weiter umfassend eine Strebe (28) des Beins, ein Auge (281), welches an der Strebe (28) des Beins angeordnet ist, wobei zwei Enden des Auges (281) jeweils mit dem anderen Ende der ausziehbaren Stange (23) des Beins und der Vorderstange (27) des Beins verbunden sind und nachdem die Komponenten der Beinstruktur zusammengeklappt wurden, sich die Komponenten in einem gefalteten Zustand befinden und unterhalb der Unterrahmenstruktur positioniert sind.
  2. Sofastuhlrahmen nach Anspruch 1, bei dem die Beinstruktur weiterhin umfasst:
    ein Zwischenbefestigungsgestell (29) des Beins, welches sich im Zwischenraum der ausziehbaren Stange (23) des Beins befindet und mit der ausziehbaren Stange (23) des Beins verbunden ist.
  3. Sofastuhlrahmen nach Anspruch 1, bei der die Rückenstruktur umfasst:
    ein Befestigungsgestell (31) des Rückens, befestigt an der Unterrahmenstruktur, ein rotierendes Gestell (32) des Rückens, dessen eines Ende mit dem Befestigungsgestell (31) des Rückens verbunden ist und dessen anderes Ende mit der rotierenden Stange (53) des Rückens verbunden ist, einen Tragrahmen (33) des Rückens, umfassend eine Rückenstange (331) und eine Lehnenstange (332), die integriert sind, wobei ein Ende der Rückenstange (331) mit einem Befestigungsgestell (31) des Rückens verbunden ist und das andere Ende der Rückenstange (331) mit der rotierenden Stange (32) des Rückens über ein Gelenk (34) verbunden ist.
  4. Sofastuhlrahmen nach Anspruch 3, bei dem die Rückenstruktur weiterhin umfasst:
    ein Befestigungsgestell (35) des Rückens, dessen eines Ende mit der Schwingstange (54) verbunden ist und dessen anderes Ende mit der Unterrahmenstruktur verbunden ist.
  5. Sofastuhlrahmen nach Anspruch 3, bei dem ein Anschlagpuffer (321) an einem Ende des rotierenden Gestells (32) des Rückens vorgesehen ist, in Nähe zu dem Gelenk (34), wobei der Anschlagpuffer (321) innerhalb des Verbindungsabschnitts zwischen dem Befestigungsgestell (31) des Rückens und dem rotierenden Gestell (32) des Rückens positioniert ist.
  6. Sofastuhlrahmen nach Anspruch 1, bei dem die Unterrahmenstruktur einen Frontbalken (11) umfasst, welcher mit der Beinstruktur verbunden ist, einen Rückenbalken (12), welcher mit der Rückenstruktur verbunden ist, einen Zwischenrahmen (13), welcher mit der Kopplungsstange verbunden ist und ein Sitzbefestigungsgestell (14), dessen beide Enden mit der Beinstruktur und mit der Rückenstruktur jeweils verbunden sind.
  7. Sofastuhlrahmen nach Anspruch 6, bei dem das Sitzbefestigungsgestell (14) ein gebogenes metallisches Blechteil ist und einen "¬"geformten Querschnitt hat.
  8. Sofastuhlrahmen nach Anspruch 6, bei dem die Aktivierungsvorrichtung eine aktivierende ausziehbare Stange (41) umfasst, deren beide Enden mit dem Fronbalken (11) und dem Rückenbalken (12) jeweils über ein Befestigungsauge (411) verbunden sind, wobei ein Aktivierungsmotor (42) an der aktivierenden ausziehbaren Stange (41) befestigt ist und der Aktivierungsmotor (42) in aktivierender Verbindung mit der aktivierenden ausziehbaren Stange (41) steht, wobei die Aktivierungsvorrichtung oberhalb der Unterrahmenstruktur angeordnet ist.
  9. Sofastuhlrahmen nach Anspruch 6, bei dem die Unterrahmenstruktur weiterhin umfasst:
    eine Spannfeder (15), deren eines Ende mit dem Rückenbalken (12) verbunden ist und deren anderes Ende mit einer Positionierungssäule (521) verbunden ist, welche von der Kopplungsstange (52) aus vorsteht.
EP16184876.7A 2016-04-29 2016-08-19 Sesselrahmen mit verbesserter struktur Active EP3238571B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610276922.4A CN105795775A (zh) 2016-04-29 2016-04-29 一种结构改进的沙发椅架

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EP3238571A1 EP3238571A1 (de) 2017-11-01
EP3238571B1 true EP3238571B1 (de) 2019-03-13

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EP (1) EP3238571B1 (de)
CN (1) CN105795775A (de)
ES (1) ES2724098T3 (de)

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CN108095406A (zh) * 2018-01-26 2018-06-01 海安县立华钢铁制品有限公司 加固型沙发电动机械装置
CN108113301A (zh) * 2018-01-26 2018-06-05 海安县立华钢铁制品有限公司 沙发双电动机械装置
CN108125443A (zh) * 2018-01-26 2018-06-08 海安县立华钢铁制品有限公司 改进型沙发双电动机械装置

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CN105795775A (zh) 2016-07-27
ES2724098T3 (es) 2019-09-06
EP3238571A1 (de) 2017-11-01

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