WO2021073705A1 - Système de coupe-tige pour coupe de tige sur site, procédé et utilisation du système de coupe-tige - Google Patents

Système de coupe-tige pour coupe de tige sur site, procédé et utilisation du système de coupe-tige Download PDF

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Publication number
WO2021073705A1
WO2021073705A1 PCT/DK2020/050287 DK2020050287W WO2021073705A1 WO 2021073705 A1 WO2021073705 A1 WO 2021073705A1 DK 2020050287 W DK2020050287 W DK 2020050287W WO 2021073705 A1 WO2021073705 A1 WO 2021073705A1
Authority
WO
WIPO (PCT)
Prior art keywords
rod
tracks
rod cutter
track
cutter
Prior art date
Application number
PCT/DK2020/050287
Other languages
English (en)
Inventor
Tommy DAHLGAARD
Original Assignee
Box-Cut.Com Aps
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 Box-Cut.Com Aps filed Critical Box-Cut.Com Aps
Priority to EP20877758.1A priority Critical patent/EP4045206A4/fr
Publication of WO2021073705A1 publication Critical patent/WO2021073705A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F11/00—Cutting wire
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
    • B21D43/006—Feeding elongated articles, such as tubes, bars, or profiles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
    • B21D43/28—Associations of cutting devices therewith
    • B21D43/285—Devices for handling elongated articles, e.g. bars, tubes or profiles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F23/00—Feeding wire in wire-working machines or apparatus
    • B21F23/005—Feeding discrete lengths of wire or rod
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D11/00—Bending not restricted to forms of material mentioned in only one of groups B21D5/00, B21D7/00, B21D9/00; Bending not provided for in groups B21D5/00 - B21D9/00; Twisting
    • B21D11/10—Bending specially adapted to produce specific articles, e.g. leaf springs
    • B21D11/12—Bending specially adapted to produce specific articles, e.g. leaf springs the articles being reinforcements for concrete
    • 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
    • B26D3/00—Cutting work characterised by the nature of the cut made; Apparatus therefor
    • B26D3/16—Cutting rods or tubes transversely

Definitions

  • Rod cutter system for on-site rod cutting, method and use of the rod cutter system
  • the present invention relates to a rod cutter system capable of displacing a rod cutter and a rod table along an axis.
  • the metal rods lie on the opposite side of the rod cutter relative to the rod table. Typi cally, the metal rods lie randomly in a pile and the different metal rods may have more than five different diameters.
  • the metal rods will typically have a length of 6-12 m before being cut.
  • the pile of rods typically has a pile width of about 2-2.5 m.
  • rod cutters While present day rod cutters may be equipped with wheels, they still weigh up to 400 kg and the rod table mounted on the rod cutter is not mobile. Thus, the entire system is immobile.
  • the pile width is about 2-2.5 m, and thus it is often necessary to pull the metal rods to the rod cutter. This is a cumbersome and exhausting procedure as it is done manually and the metal rods are heavy.
  • the rods lie on top of each other along the length of the pile of rods and this causes the person pulling the rods to make damaging twists and turns to the person’s body over time.
  • the problem with the poor posture is that the person’s body gets worn out faster, thereby increasing the number of sick days. The higher number of sick days increases costs for the company.
  • GB 1560351 describes a bar handling system for conveying steel bars of the kind used for concrete reinforcement bars from storage beds of a storage to shears or another machine tool.
  • the pick-up device and part of the storage beds are mutually aligned before the bars are drawn towards the shears.
  • ES2233141 A1 discloses benches for bars and a platform on which shears are mounted for cutting the bars. The benches for the bars are inclined to ease the movement of the bars.
  • EP1952905 A1 discloses a machine for cutting and bending of iron rods by use of mo- bile heads and displaceable sections holding straight iron rod.
  • the machine is charac terised by a combination of cutting machinery and bending machinery of iron con crete, where each cutting/bending section can be controlled using a control -panel.
  • a rod cutter system for on-site cutting of metal rods may comprise
  • the rod cutter may be any rod cutter, which is already known and which is presently used on construction sites.
  • the rod cutters typically weigh around 400 kg.
  • the rod cutter system is to be placed next to a pile of rods and the plurality of tracks should optimally have a length equal to the width of the pile of rods.
  • the tracks and the plurality of displacement mechanisms supporting the rod cutter and the rod table enables a user, working with the rod cutter, to displace the rod cutter and the table perpendicular to the longitudinal axis, such that a rod from the pile of rods can be pulled along the longitudinal axis through the rod cutter and into the rod table.
  • This straight pulling of the rod puts less strain on the user than the prior art. Thereby, the user can work faster with a reduced strain on the body, which may result in less sick days.
  • the plurality of displacement mechanisms may be directly connected to the respective rod cutter and rod table.
  • the plurality of displacement mechanisms may be connected to an intermediate piece having a surface on which the rod cutter or the rod table is placed.
  • the rod cutter and the rod table may be placed on two different intermediate pieces such that the rod cut ter and the rod table can be moved separately, which can be necessary as the entire system may be 6 m long, which may result in a large mass and potentially a large torque.
  • the plurality of tracks may be a plurality of rails.
  • the rod cutter system is configured such that the rod cutter and the rod table can be moved as two different units.
  • the rod cutter typically weights 400 kg and the rod table may be 6 m if a rod of 12 m is to be cut in half, and a rod table filled with rods can have a large mass of up to 400 kg, furthermore the pushing of the rod table may involve a large torque dependent on the mass and where the rod table is pushed along the longitudinal axis.
  • the displacement mechanisms are connect ed directly to the rod table and the rod cutter.
  • the system is configured such that the rod cutter and the rod table can be moved as single unit. This may be done by attachment means between the rod cutter and the rod table.
  • the attachment means may be releasable snap members or the like.
  • the positioning of the rod cutter and rod table may be secured by inserting a wedge between one or more tracks and one or more displacement mechanisms.
  • the wedge may be made on-site by cutting a piece of wood into a wedge.
  • a first group of tracks supporting the rod cutter and a second group of tracks supporting the rod table are vertically off-set.
  • the rod can be supported by the rod table during the cutting of the rod.
  • the attachment means may be releasable snap members or the like.
  • a first displacement mechanism supporting the rod cutter and a second displacement mechanism supporting the rod table are paired by a cross bar extending between the first and second displacement mechanisms.
  • the pairing by the crossbar ensures that the rod cutter and the rod table can be moved as one unit.
  • the first displacement mechanism is the displacement mechanism positioned at a track below the rod cutter while being the track closest to the rod table.
  • the second displacement mechanism is the displacement mechanism positioned at a track below the rod table while being the track closest to the rod cutter.
  • first displacement mechanisms there may be one, two or more first displacement mechanisms as there may be one, two or more displacement mechanisms positioned on the track below the rod cutter and being the track closest to the rod table.
  • one or more of the tracks may comprise a top track sur face and two track sides and one or more of the displacement mechanisms may com prise a track channel defined by two channel sides and a top side, the track channel being complementary to the one or more of the tracks, the displacement mechanisms having at the top side one or more top wheels for engaging with the track top surface.
  • the embodiments enable a fast and easy installation of the displacement mechanism and the top wheel reduce friction by a large factor, thereby making it easier to move the rod cutter system.
  • the displacement mechanism is complementary to the one or more of the tracks by the two channel sides facing the two track sides, while the one or more top wheels engage with the track top surface. Thereby, the displacement mechanism gets a downwardly extending U-profile with a track in between.
  • the one or more of the displacement mechanisms with a track channel may comprise a side wheel on one or both channel sides of the track channel for engaging with one or both track sides.
  • the one or more side wheels significantly increases the tolerance of displacement per pendicular to the longitudinal axis as the side wheels will engage with the one or more track sides when moved such that the system will self-align if the displacement mech anism begins to move slightly non-perpendicular to the longitudinal axis. This makes the system easier and faster to use.
  • the technical effect of the side wheel increases with the length of the rod table as it becomes harder and harder to move the rod table straight without the one or more side wheels.
  • one or more of the plurality of tracks have a U- shaped profile and the corresponding displacement mechanisms have one or more wheels complementary to the U-shaped profile.
  • the U-shaped profile of the track will keep the wheels of the corresponding displace- ment mechanisms on the track, thereby making it easier for a user to use the rod cutter system.
  • one or more of the plurality of tracks may comprise a runway and a running track and the corresponding displacement mechanisms may comprise a wheel for engaging the runway and a side wheel for engaging the running track.
  • the rod cutter system is kept on the track when being displaced perpendicular to the longitudinal axis.
  • the rod table may comprise a shield extending over the rod table.
  • the cutting of a rod may cause the rod to move suddenly and randomly.
  • the shield ensures that the user will not be hit by the rod as the rod is heavy and can cause severe trauma.
  • the rod table is equipped with a displaceable length stop, which length stop is displaceable along the longitudinal axis.
  • the length stop may be placed 3 meters from the rod cutter such that the user can easily make several rod pieces hav ing a length of 3 m.
  • the plurality of tracks is supported by a chassis.
  • the vertically off-set of the plurality of tracks is also made easier.
  • the chassis and plurality of tracks will have a large mass, but construction sites will always have means for moving the plurality of tracks and the chassis.
  • the plurality of tracks and the chassis is a monolith.
  • the rod cutter system comprises a motor for displacing the rod cut ter and the rod table.
  • the skilled person would know how to install said motor to the rod cutter system.
  • the rod cutter system may be dividable into smaller sections which will enable easier transport of the rod cutter system to and from a construction site.
  • the rod table and the tracks may be dividable into two or more sections.
  • the rod cutter system is equipped with a motor for displacing the rod cut ter and rod table along the tracks.
  • the one or more of the plurality of tracks may have an upwardly directed protrusion to prevent accumulation of gravel and dirt
  • the corresponding dis placement mechanisms have one or more wheels with a recess complementary to the tracks having an upwardly directed protrusion.
  • An object of the invention is achieved by a method for cutting a metal rod on a con struction site, the method comprising acts of
  • the rod cutter system is provided and positioned at the pile of rods.
  • the pile of rods may have several rods with different diameters.
  • the pile of rods may be divided over 1-3 m or more.
  • the rod cutter may position such that the tracks are perpendicular to the pile of rods as this enables the rod cutter and the rod table to be moved to the rod to be cut.
  • a rod cutter system for cutting rods on a construction site may comprise
  • the rod cutter can be displaced along a pile of rods such that the can be pulled along a straight line to and through the rod cutter, thereby easing the strain on the user.
  • Fig. 1 illustrates a prior art rod cutter system
  • Fig. 2 illustrates a rod cutter system
  • Fig. 3 illustrates another embodiment of a rod cutter system
  • Fig. 4 illustrates a displacement mechanism
  • Fig. 5 illustrates a displaceable rod table
  • Fig. 6 illustrates a method for cutting a metal rod on a construction site
  • Fig. 7 illustrates two different embodiments of a wheel for being part of the dis placement mechanism.
  • Fig. 1 illustrates a prior art rod cutter system 10 from a top view (A) and side view (B).
  • the prior art rod cutter system 10 is a stationary system comprising a rod cutter 20 and rod table 30, where the rods 12 are moved to the system 10 for being cut by the rod cutter 20.
  • the rod table 20 will typically be a makeshift solution using wood at the construction site.
  • the rod table 20 will typically be positioned on something appropriate such that it can support the rod 12 to be cut.
  • Fig. 2 illustrates a rod cutter system 10 according to the invention from a top view (A), a side view (B) and a cross-section (C) of the dashed line in (B).
  • the rod cutter system 10 comprises a rod cutter 20 and a rod table 30 extending from the rod cutter 20 along a longitudinal axis 14.
  • the rod cutter may be any rod cutter 20 used on a construction site.
  • the rod cutter system 10 comprises a plurality of tracks 42 positioned along the rod cutter 20 and the rod table 30, the plurality of tracks 42 being substantially perpendic- ular to the longitudinal axis 14.
  • the plurality of tracks extends along a displacement axis 16, which is perpendicular to the longitudinal axis 14.
  • Each of the tracks 40, 42 comprises a track top surface 44 and two track sides 46.
  • the rod cutter system 10 comprises a plurality of displacement mechanisms 50 sup porting the rod cutter 20 and the rod table 30, the plurality of displacement mecha nisms 50 being displaceable connected to the plurality of tracks 42, such that the rod cutter 20 and the rod table 30 are displaceable along the plurality of tracks 42.
  • the rod cutter 20 and the rod table 30 are vertically offset.
  • the rod cutter system enables the rod cutter 20 and the rod table 30 to be displaced to the rod 12 to be cut.
  • This movement is a straight movement along the tracks 40, 42 and the displacement axis 16.
  • the straight movement is less straining to the human body than the twists and turns needed for pulling the rod 12 to the rod cutter.
  • the displacement mechanism 50 (C) is equipped with two top wheels for engaging with the track top surface 44 thereby the displacement is made easier.
  • the rod table 30 is equipped with two upwardly extending sides, such that the rod table 30 becomes box-like and one of the sides is equipped with a shield 32 which extends over part of the rod table 30.
  • Fig. 3 illustrates another embodiment of a rod cutter system 10.
  • the rod cutter system 10 has the same features as the rod cutter system 10 disclosed in figure 3.
  • the rod cutter system 10 further comprises a first displacement mechanism 501 supporting the rod cutter 20 and a second displacement mechanism 501 supporting the rod table 30 which are paired by a crossbar 62 extending between the first and second displacement mechanisms 501, 5011.
  • the pairing by the crossbar 62 ensures that the rod cutter 20 and the rod table 30 can be moved as one unit.
  • the first displacement mechanism 501 is the displacement mechanism 50 positioned at a track 421 below the rod cutter 20 while being the track 421 closest to the rod table 30.
  • the second displacement 5011 mechanism is the displacement mechanism positioned at a track 4211 below the rod table 20 while being the track 4211 closest to the rod cut ter 20.
  • first displacement mechanisms there may be one, two or more first displacement mechanisms as there may be one, two or more displacement mechanisms positioned on the track below the rod cutter and being the track closest to the rod table.
  • Fig. 4 illustrates a displacement mechanism 50 from a top view (A), a side view (B) and a cross-sectional view (C), where the displacement mechanism 50 is cut along the dashed line in (B).
  • the displacement mechanism 50 comprises a track channel 52 defined by two channel sides 58 and a top side 54, the track channel 52 being complementary to the track 40 as shown in fig. 3, the displacement mechanisms 50 having at the top side 54 one or more top wheels 56 for engaging with a track top surface 44 of a track 40 (see figure
  • the displacement mechanism 50 with the track channel 52 comprises side wheels 60 on both channel sides 58 of the track channel 52 for engaging with one or both track sides 46.
  • Fig. 5 illustrates a displaceable rod table 30 from a top view (A), a side view (B) and a cross-sectional view (C) from the A-A dashed line in (B).
  • the rod table 30 extends along a longitudinal axis 14.
  • a plurality of tracks 42 are po sitioned along the rod table 30, and the plurality of tracks 42 are substantially perpen dicular to the longitudinal axis 14.
  • the plurality of tracks extends along a displace ment axis 16, which is perpendicular to the longitudinal axis 14.
  • a plurality of displacement mechanisms 50 support the rod table 30, the plurality of displacement mechanisms 50 are displaceable connected to the plurality of tracks 42, such that the rod table 30 is displaceable along the plurality of tracks 42.
  • the displacement mechanism 50 (C) is equipped with two top wheels for engaging with the track top surface 44, thereby displacement is made easier.
  • the rod table 30 is equipped with two upwardly extending sides, such that the rod table 30 becomes box-like and one of the sides is equipped with a shield 32 which extends over at least part of the rod table 30.
  • Fig. 6 illustrates method 100 for cutting a metal rod 12 at a construction site.
  • the method 100 comprising acts of
  • Fig. 7 illustrates two different embodiments of a wheel for being part of the displace ment mechanism 70.
  • Figure 7A discloses a wheel and figure 7B discloses a cross-section of said wheel along the straight dotted line in figure 7A.
  • the wheel comprises recess having a curved shape.
  • the wheel can interact with a track 40 having an upwardly directed protrusion being complementary to the wheel i.e. the track has a curved shape. This prevents gravel or other dirt to fall unto the track as the outwardly curved shape will cause the gravel or dirt to slide of the track.
  • Figure 7C discloses a wheel and figure 7D discloses a cross-section of said wheel along the straight dotted line in figure 7C.
  • the wheel comprises recess having two sloped sides.
  • the wheel can interact with a track 40 having an upwardly di rected protrusion being complementary to the wheel i.e. the track has a spear-like shape. This prevents gravel or other dirt to fall unto the track as the outwardly curved shape will cause the gravel or dirt to slide of the track.
  • the wheel and tracks may have other complementary shapes causing gravel or other dirt to slide of the track.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Knives (AREA)
  • Details Of Cutting Devices (AREA)

Abstract

L'invention concerne un système de coupe- tige pour la coupe sur site de tiges métalliques, le système de coupe-tige peut comprendre un dispositif de coupe de tige et une table de tige s'étendant à partir du dispositif de coupe de tige le long d'un axe longitudinal, une pluralité de pistes positionnées le long du dispositif de coupe de tige et de la table de tige, la pluralité de pistes étant sensiblement perpendiculaire à l'axe longitudinal, une pluralité de mécanismes de déplacement supportant le dispositif de coupe de tige et la table de tige, la pluralité de mécanismes de déplacement pouvant être déplacés par rapport à la pluralité de pistes, de telle sorte que le dispositif de coupe de tige et la table de tige peuvent être déplacés le long de la pluralité de pistes.
PCT/DK2020/050287 2019-10-18 2020-10-16 Système de coupe-tige pour coupe de tige sur site, procédé et utilisation du système de coupe-tige WO2021073705A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP20877758.1A EP4045206A4 (fr) 2019-10-18 2020-10-16 Système de coupe-tige pour coupe de tige sur site, procédé et utilisation du système de coupe-tige

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DKPA201970651A DK180139B1 (en) 2019-10-18 2019-10-18 Rod mowing system for on-site bar mowing, method and application of the bar mowing system
DKPA201970651 2019-10-18

Publications (1)

Publication Number Publication Date
WO2021073705A1 true WO2021073705A1 (fr) 2021-04-22

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DK2020/050287 WO2021073705A1 (fr) 2019-10-18 2020-10-16 Système de coupe-tige pour coupe de tige sur site, procédé et utilisation du système de coupe-tige

Country Status (3)

Country Link
EP (1) EP4045206A4 (fr)
DK (1) DK180139B1 (fr)
WO (1) WO2021073705A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112873377B (zh) * 2021-02-22 2024-01-05 河北鑫鹏通信设备有限公司 一种去除塑料管边角料的装置

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1432038A (en) * 1972-11-03 1976-04-14 Kuderli Holding Ag Zuerich Apparatus for conveying iron rod to a cutter and for cutting it
GB1560351A (en) * 1976-01-09 1980-02-06 Peddinghaus Carl Ullrich Dr Bar handling system
GR862302B (en) * 1986-09-09 1986-09-18 Viotehnia Mihanimaton Epexerga Portable complex for cutting concrete
FR2675065A1 (fr) * 1991-04-15 1992-10-16 Chemical Paul Procede et installation de coupe de barres metalliques.
ES2233141A1 (es) * 2002-10-28 2005-06-01 Jose Maria Caballero Muñoz Instalacion en obra para ferralla.
ES2241392A1 (es) * 2002-09-23 2005-10-16 Ferrallados Alameda, S.L. Planta para manipulacion de barras de acero para armaduras, zunchos y similares.
EP1952905A1 (fr) * 2007-02-05 2008-08-06 Galanos S.A. Dispositif pour le coupage et le pliage des barres de fer a l'aide des têtes de pliage mobiles et des dispositifs de retenue mobils en section pour des barres droites

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2718744A1 (de) * 1977-04-27 1978-11-02 Peddinghaus Carl Ullrich Dr Anlage fuer von den lagerbetten eines lagers zu einer schere o.dgl. zu foerdernden betonstahlstaebe
IT1193054B (it) * 1982-09-27 1988-06-02 E Soc Automatismi Elettronici Metodo ed impianto di taglio di barre metalliche in spezzoni di minor lunghezza
DE202005011269U1 (de) * 2005-07-14 2005-09-29 Hackenfort, Günter Flexibles Gleistransportsystem

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1432038A (en) * 1972-11-03 1976-04-14 Kuderli Holding Ag Zuerich Apparatus for conveying iron rod to a cutter and for cutting it
GB1560351A (en) * 1976-01-09 1980-02-06 Peddinghaus Carl Ullrich Dr Bar handling system
GR862302B (en) * 1986-09-09 1986-09-18 Viotehnia Mihanimaton Epexerga Portable complex for cutting concrete
FR2675065A1 (fr) * 1991-04-15 1992-10-16 Chemical Paul Procede et installation de coupe de barres metalliques.
ES2241392A1 (es) * 2002-09-23 2005-10-16 Ferrallados Alameda, S.L. Planta para manipulacion de barras de acero para armaduras, zunchos y similares.
ES2233141A1 (es) * 2002-10-28 2005-06-01 Jose Maria Caballero Muñoz Instalacion en obra para ferralla.
EP1952905A1 (fr) * 2007-02-05 2008-08-06 Galanos S.A. Dispositif pour le coupage et le pliage des barres de fer a l'aide des têtes de pliage mobiles et des dispositifs de retenue mobils en section pour des barres droites

Also Published As

Publication number Publication date
DK180139B1 (en) 2020-06-19
DK201970651A1 (en) 2020-06-19
EP4045206A4 (fr) 2023-11-08
EP4045206A1 (fr) 2022-08-24

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