EP3445549B1 - Dispositif de rupture de zones d'attache sur des boites pliables et installation de fabrication comprenant un tel dispositif de rupture - Google Patents

Dispositif de rupture de zones d'attache sur des boites pliables et installation de fabrication comprenant un tel dispositif de rupture Download PDF

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Publication number
EP3445549B1
EP3445549B1 EP17716795.4A EP17716795A EP3445549B1 EP 3445549 B1 EP3445549 B1 EP 3445549B1 EP 17716795 A EP17716795 A EP 17716795A EP 3445549 B1 EP3445549 B1 EP 3445549B1
Authority
EP
European Patent Office
Prior art keywords
transport
pressing member
breaking device
along
stack
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
EP17716795.4A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3445549A1 (fr
Inventor
Mauro Chiari
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.)
Bobst Lyon SAS
Original Assignee
Bobst Lyon SAS
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 Bobst Lyon SAS filed Critical Bobst Lyon SAS
Publication of EP3445549A1 publication Critical patent/EP3445549A1/fr
Application granted granted Critical
Publication of EP3445549B1 publication Critical patent/EP3445549B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/002—Prebreaking
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/01—Means for holding or positioning work
    • B26D7/015—Means for holding or positioning work for sheet material or piles of sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D5/00—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D5/20—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting with interrelated action between the cutting member and work feed
    • B26D5/26—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting with interrelated action between the cutting member and work feed wherein control means on the work feed means renders the cutting member operative
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/06—Arrangements for feeding or delivering work of other than sheet, web, or filamentary form
    • B26D7/0625—Arrangements for feeding or delivering work of other than sheet, web, or filamentary form by endless conveyors, e.g. belts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/18—Means for removing cut-out material or waste
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F3/00—Severing by means other than cutting; Apparatus therefor
    • B26F3/02—Tearing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/006—Controlling; Regulating; Measuring; Improving safety
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/02—Feeding or positioning sheets, blanks or webs
    • B31B50/04—Feeding sheets or blanks
    • B31B50/042—Feeding sheets or blanks using rolls, belts or chains
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/02—Feeding or positioning sheets, blanks or webs
    • B31B50/04—Feeding sheets or blanks
    • B31B50/06—Feeding sheets or blanks from stacks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2110/00—Shape of rigid or semi-rigid containers
    • B31B2110/30—Shape of rigid or semi-rigid containers having a polygonal cross section
    • B31B2110/35—Shape of rigid or semi-rigid containers having a polygonal cross section rectangular, e.g. square
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2120/00—Construction of rigid or semi-rigid containers
    • B31B2120/30—Construction of rigid or semi-rigid containers collapsible; temporarily collapsed during manufacturing
    • B31B2120/302—Construction of rigid or semi-rigid containers collapsible; temporarily collapsed during manufacturing collapsible into a flat condition

Definitions

  • the present invention relates to a breaking device for breaking fastening zones defining breakable lines on stacked cardboard sheets.
  • a foldable box can for example be a carton.
  • sheets of cardboard are pre-cut when stacked. The precut produces on each sheet of cardboard a breakable line defined by attachment zones.
  • the bottom includes a conveyor including a multitude of rollers configured to move the stack in the direction of transport.
  • each roller since each roller must be relatively narrow, the pressure of the stack on the rollers may cause indentations at least on the underside of the stack. Because of these marks, at least the bottom sheet of each stack has a quality defect necessitating its disposal, which increases the rate of waste and the cost of production.
  • the object of the present invention is in particular to solve, in whole or in part, the problems mentioned above.
  • such a breaking device makes it possible to break breakable lines at different positions in the transverse direction without marking the bottom sheet of the stack.
  • the belts of the transport members are relatively wide, which distributes the pressure of the lower pressing member over a relatively large area, and therefore minimizes the risk of marking the bottom sheet of the stack.
  • transport members each have an elongated shape having a ratio of width to length of less than 10%, or even 5%.
  • This elongated shape is for example rectilinear and rectangular.
  • the transverse direction is orthogonal to the direction of transport.
  • the direction of transport can be horizontal when the rupture device is in service configuration.
  • the lower translational actuator includes a rack mechanism and rack rails.
  • the lower cylinder is a linear actuator, for example a cylinder.
  • the linear actuator can be driven by electrical, pneumatic or hydraulic energy.
  • the conveyor belts are used to efficiently transport batteries in the rupture device and to break the attachment zones along the breakable lines.
  • each transport member includes such a belt and at least one such rotary pinion.
  • transport members each comprise two rotary pinions situated respectively at the two ends of the transport member according to the direction of transport.
  • transport members may comprise, instead of belts, series of rollers or series of rollers configured to drive the stack according to the direction of transport.
  • the number of transport members is greater than eight, preferably greater than sixteen.
  • each transport member is movable in the transverse direction relative to a juxtaposed transport member.
  • such a breaking device makes it possible to break a large number of breakable lines at different positions in the transverse direction, which simplifies the transport of the stack upstream of the breaking device and which avoids having to replace at the level d 'a single rupture zone a pile having several breakable lines.
  • transport members each have a width of between 50 mm and 500 mm, preferably between 50 mm and 200 mm, measured in the transverse direction.
  • widths make it possible to juxtapose numerous transport members, so as to define numerous rupture zones, and therefore to be able to break numerous ruptible lines.
  • each of these transport members is narrow compared to the transport members of the state of the art.
  • the upper pressing member is movable between its immobilization position and its release position, in a substantially vertical direction when the rupture device is in service configuration, and the transport members are movable, between the immobilization positions and the release positions, in a substantially vertical direction when the rupture device is in service configuration.
  • the release position is located above the immobilization position, while for the lower pressing member, the release position is located below the immobilization position.
  • the upper pressing member comprises a pivoting part
  • the rupture device further comprising a pivoting actuator configured to drive the pivoting part around a pivoting direction parallel to the transverse direction, so as to break attachment zones defining breakable columns on the cardboard sheets of the stack, the breakable columns extending transversely to the breakable lines.
  • Such a breaking device makes it possible to break attachment zones in two perpendicular directions, along the breakable lines and the breakable columns.
  • the upper pressing member comprises at least two adjacent upper plates which can be spaced apart from one another in the transverse direction so as to define a rupture slot
  • the rupture device further comprising an upper translation actuator arranged to move in translation the upper pressing member in the transverse direction, so as to make the rupture slot coincide with a ruptible line.
  • the upper pressing member comprises an upper jack configured to separate and bring the two upper plates closer to one another in the transverse direction
  • the lower pressing member comprises a lower jack configured to separate and bring the two lower plates together from one another in the transverse direction
  • several transport members each further include: coupling elements which are arranged on each of the transverse faces of the rotary pinion and which are configured to cooperate with coupling elements of the juxtaposed transport member , the rupture device further comprising a rotary actuator configured to drive the rotary pinions in rotation.
  • the coupling elements comprise dogs or friction discs.
  • the rupture device further comprises a clutch system configured to bring the transport members in translation in the transverse direction.
  • the at least one electromechanical clutch comprises a pivoting bar arranged to pivot so as to induce a horizontal movement of the transport member in the transverse direction.
  • FIGS 1 to 11 illustrate a breaking device 1, for breaking attachment zones defining breakable lines 101 on stacked sheets of cardboard forming a stack 100, visible on the figure 12 .
  • a sheet of cardboard generally has the shape of a rectangle and a stack 100 of stacked sheets of cardboard has generally the shape of a rectangular parallelepiped, as shown in the figure 12 .
  • the breaking device 1 comprises an upper pressing member 2, a lower pressing member 6 and a support part 4.
  • the breaking device 1 further comprises a frame 5 configured to support the upper pressing member 2, the lower pressing member 6 and the support part 4 and other components of the rupture device 1.
  • the upper pressing member 2 When the rupture device 1 is in service configuration, the upper pressing member 2 is higher than the lower pressing member 6 and the support part 4 is located between the upper pressing member 2 and the lower pressing member 6 When the rupture device 1 is in the configuration of service ( figure 1 ), the upper pressing member 2 is higher in the immobilized position than in the disengaged position.
  • the upper pressing member 2 is movable, between its immobilization position and its release position, in a substantially vertical direction Z when the rupture device 1 is in service configuration ( figures 1 and 2 ).
  • the support part 4 is configured to support the stack when the upper pressing member 2 is in the immobilized position.
  • the support part 4 comprises a plurality of transport members 10. In the example of the figures, the number of transport members 10 is equal to 36.
  • the transport members 10 are juxtaposed in a transverse direction Y which extends transversely to the transport direction X.
  • the transverse direction Y is here orthogonal to the transport direction X.
  • the transport direction X is horizontal when the rupture device 1 is in service configuration ( figures 1 and 2 ).
  • the transport direction X is usually called "thrust direction”
  • the transverse direction Y is usually called "width direction”.
  • the transport members 10 are configured so that two juxtaposed transport members 10 are movable relative to each other in the transverse direction Y.
  • each member transport is movable in the transverse direction Y relative to a transport member 10 juxtaposed.
  • Each transport member 10 here has a width W10 approximately equal to 50 mm, measured in the transverse direction Y.
  • each transport member 10 here has an elongated shape having a ratio of the width W10 to the length L10 approximately equal to 3.5%.
  • the length L10 is approximately equal to 1450 mm.
  • the elongated shape of each transport member 10 is here rectilinear and rectangular.
  • the upper pressing member 2 comprises two upper plates 2.1, 2.2 adjacent and separable from each other in the transverse direction Y so as to define a rupture slot 2.0.
  • the upper pressing member 2 comprises an upper cylinder 26 configured to selectively move apart and bring the two upper plates 2.1 and 2.2 together in the transverse direction Y.
  • the figure 1 symbolically illustrates a manufacturing installation 51 for manufacturing foldable boxes.
  • the manufacturing installation 51 comprises: i) the rupture device 1 and ii) a control unit 52 configured to control several components of the rupture device 1.
  • the breaking device 1 When the breaking device 1 must break breakable lines 101, the upper jack 26 moves the upper plate 2.1 apart from the upper plate 2.2. Then, the upper cylinder 26 brings the upper plate 2.1 closer to the upper plate 2.2, to return to the adjacent position. The movements of the upper cylinder 26 are controlled by the control unit 52.
  • the rupture device 1 further comprises an upper translation actuator 24 which is arranged to move the upper pressing member 2, that is to say the upper plates 2.1 and 2.2, in translation in the transverse direction Y.
  • the upper translation actuator 24 moves the upper pressure member 2 so as to make the rupture slot 2.0 coincide with a breakable line 101.
  • the movements of the upper translation actuator 24 are controlled by the control unit 52.
  • the transport members 10 are movable, between the immobilization positions and the release positions, in the substantially vertical direction Z when the rupture device 1 is in the service configuration ( figures 1 and 2 ).
  • the belts 12 of the transport members 10 can rotate, therefore moving the batteries 100 in the transport direction X.
  • the belts 12 In the immobilized position, the belts 12 cannot rotate, because they are in contact with the lower pressing member 6.
  • the breaking device comprises a vertical drive system 27 which is configured to raise and lower the transport members 10 in the vertical direction Z.
  • the vertical drive system 27 comprises: i) vertical connecting rods 27.1, ii) discs 27.2 and iii) synchronization rods 27.3.
  • the vertical connecting rods 27.1 are integral with a frame 27.4 which supports the transport members 10.
  • the vertical connecting rods 27.1 are here four in number, two of which are visible on the figure 3 .
  • Each disc 27.2 fulfills the function of a cam, because it transforms a rotational movement into a translational movement.
  • Each vertical link 27.1 is connected to a respective disc 27.2 eccentrically.
  • Each synchronization rod 27.3 is connected to a respective disc 27.2 eccentrically.
  • the vertical drive system 27 further comprises transverse actuators not shown, which are configured to move the synchronizing rods 27.3 in translation parallel to the transverse direction Y.
  • the transverse actuators move the synchronizing rods 27.3; the synchronization rods 27.3 drive the discs 27.2 in rotation; the discs 27.2 drive the vertical connecting rods 27.1, either upwards or downwards.
  • the lower pressing member 6 has two lower plates 6.1 and 6.2.
  • the lower plates 6.1 and 6.2 are adjacent and separable from each other in the transverse direction Y so as to define a rupture slot 2.0.
  • the lower pressing member 6 further comprises a lower translation actuator 6.3 which is arranged to move the lower plates 6.1 and 6.2 in translation in the transverse direction Y.
  • the lower translation actuator 6.3 is composed of a rack mechanism comprising rack rails 6.30.
  • the lower translation actuator 6.3 moves the lower pressing member 6 so as to make the rupture slot 2.0 coincide with a breakable line 101.
  • the movements of the lower translation actuator 6.3 are controlled by the control unit 52.
  • the lower pressing member 6 comprises a lower cylinder 6.6, symbolized Figures 8 and 9 , configured to selectively move apart and bring the two lower plates 6.1 and 6.2 one apart in the transverse direction Y.
  • the breaking device 1 When the breaking device 1 must break breakable lines 101, the lower jack 6.6 separates the lower plate 6.1 from the lower plate 6.2. Then, the lower jack 6.6 brings the lower plate 6.1 closer to the lower plate 6.2, to return to the adjacent position.
  • the movements of the lower cylinder 6.6 are controlled by the control unit 52.
  • each transport member 10 further includes coupling elements 16 and 17.
  • the coupling elements 16 and 17 are arranged on each of the transverse faces of the rotary gears 14 and 15.
  • the coupling elements 16 and 17 are configured to cooperate with coupling elements of the transport member 10 juxtaposed.
  • the rupture device 1 also comprises a rotary actuator, not shown, configured to drive the rotary pinions 14 and 15 in rotation.
  • the rupture device 1 also comprises a clutch system 30 which is configured to bring the transport members 10 juxtaposed in translation in the transverse direction Y.
  • the clutch system 30 "re-engages” or re-engages the respective rotary pinions 14 and 15 with the respective coupling elements 16 and 17.
  • the clutch system 30 thus makes it possible to return the transport members 10 to the initial position, after the lower plates 6.1 and 6.2 have separated the transport members 10 to break a breakable line in the stack 100 of stacked sheets of cardboard.
  • all of their rotary pinions 14 and 15 are engaged with coupling elements 16 and 17, which makes it possible to drive all the belts 12 in rotation simultaneously.
  • each electromechanical clutch 38 comprises a pivoting bar 38.1, the ends of which are fitted with rollers.
  • the clutch system 30 further comprises a vertical linear actuator 31 which is arranged to move, in translation parallel to the vertical direction Z, one end of the swivel bar 38.1.
  • a first end of the swivel bar 38.1 is in contact with the vertical linear actuator 31.
  • the other end of the swivel bar 38.1 is in contact with the first transport member 10 (on the left on the figures 10 and 11 ).
  • the pivoting bar 38.1 is here arranged to pivot at an angle A38.1 approximately equal to 30 degrees, which induces a horizontal displacement of approximately 15 mm from the first transport member 10 to the right in the transverse direction Y.
  • control unit 52 operates in particular the following step: controlling the vertical linear actuators 31, so as to move the transport members 10 in translation in the transverse direction Y.
  • the rotary pinions 14 and 15 return respectively to the coupling elements 16 and 17.
  • the breaking device 1 is again ready to break a breakable line 101.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Making Paper Articles (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Cartons (AREA)
EP17716795.4A 2016-04-18 2017-04-05 Dispositif de rupture de zones d'attache sur des boites pliables et installation de fabrication comprenant un tel dispositif de rupture Active EP3445549B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1653390A FR3050134B1 (fr) 2016-04-18 2016-04-18 Dispositif de rupture de zones d'attache sur des boites pliables et installation de fabrication comprenant un tel dispositif de rupture
PCT/EP2017/025078 WO2017182137A1 (fr) 2016-04-18 2017-04-05 Dispositif de rupture de zones d'attache sur des boites pliables et installation de fabrication comprenant un tel dispositif de rupture

Publications (2)

Publication Number Publication Date
EP3445549A1 EP3445549A1 (fr) 2019-02-27
EP3445549B1 true EP3445549B1 (fr) 2020-06-03

Family

ID=56101714

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17716795.4A Active EP3445549B1 (fr) 2016-04-18 2017-04-05 Dispositif de rupture de zones d'attache sur des boites pliables et installation de fabrication comprenant un tel dispositif de rupture

Country Status (9)

Country Link
US (1) US11426964B2 (zh)
EP (1) EP3445549B1 (zh)
JP (1) JP6683837B2 (zh)
KR (1) KR102173850B1 (zh)
CN (1) CN109070378B (zh)
ES (1) ES2805075T3 (zh)
FR (1) FR3050134B1 (zh)
TW (1) TWI647079B (zh)
WO (1) WO2017182137A1 (zh)

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WO2024141297A1 (en) * 2022-12-28 2024-07-04 Bobst Lyon Breaker module for a converting machine

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US20190106170A1 (en) * 2017-10-11 2019-04-11 Wyatt Sven HAGEN Bike lock
US11524474B2 (en) 2018-11-30 2022-12-13 Packsize Llc Adjustable cutting and creasing heads for creating angled cuts and creases
CN111319100B (zh) * 2020-03-17 2021-08-13 江苏极盛信息技术有限公司 一种用于制证机的撕证机构
EP4392246A1 (en) 2021-08-23 2024-07-03 Bobst Lyon Converting machine and corresponding system
WO2024141280A1 (en) 2022-12-28 2024-07-04 Bobst Lyon Flap-cutting device for a converting machine

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Publication number Priority date Publication date Assignee Title
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Also Published As

Publication number Publication date
TWI647079B (zh) 2019-01-11
CN109070378B (zh) 2021-04-06
WO2017182137A1 (fr) 2017-10-26
ES2805075T3 (es) 2021-02-10
EP3445549A1 (fr) 2019-02-27
CN109070378A (zh) 2018-12-21
JP6683837B2 (ja) 2020-04-22
US20190111648A1 (en) 2019-04-18
KR20180132867A (ko) 2018-12-12
US11426964B2 (en) 2022-08-30
TW201803710A (zh) 2018-02-01
KR102173850B1 (ko) 2020-11-06
JP2019517925A (ja) 2019-06-27
FR3050134B1 (fr) 2018-04-20
FR3050134A1 (fr) 2017-10-20

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