CN111989446A - Support structure - Google Patents

Support structure Download PDF

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Publication number
CN111989446A
CN111989446A CN201980012337.5A CN201980012337A CN111989446A CN 111989446 A CN111989446 A CN 111989446A CN 201980012337 A CN201980012337 A CN 201980012337A CN 111989446 A CN111989446 A CN 111989446A
Authority
CN
China
Prior art keywords
receiving
diagonal cross
fingers
finger
receiving fingers
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.)
Pending
Application number
CN201980012337.5A
Other languages
Chinese (zh)
Inventor
托拜厄斯·斯特克
安德烈·盖瑟
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.)
Peri GmbH
Original Assignee
Peri GmbH
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 Peri GmbH filed Critical Peri GmbH
Publication of CN111989446A publication Critical patent/CN111989446A/en
Pending legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G7/00Connections between parts of the scaffold
    • E04G7/02Connections between parts of the scaffold with separate coupling elements
    • E04G7/06Stiff scaffolding clamps for connecting scaffold members of common shape
    • E04G7/22Stiff scaffolding clamps for connecting scaffold members of common shape for scaffold members in end-to-side relation
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G5/00Component parts or accessories for scaffolds
    • E04G5/16Struts or stiffening rods, e.g. diagonal rods
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G1/00Scaffolds primarily resting on the ground
    • E04G1/14Comprising essentially pre-assembled two-dimensional frame-like elements, e.g. of rods in L- or H-shape, with or without bracing
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G1/00Scaffolds primarily resting on the ground
    • E04G1/28Scaffolds primarily resting on the ground designed to provide support only at a low height
    • E04G1/30Ladder scaffolds
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G11/00Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
    • E04G11/36Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for floors, ceilings, or roofs of plane or curved surfaces end formpanels for floor shutterings
    • E04G11/48Supporting structures for shutterings or frames for floors or roofs
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G5/00Component parts or accessories for scaffolds
    • E04G5/06Consoles; Brackets
    • E04G5/061Consoles; Brackets specially adapted for attachment to scaffolds
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G7/00Connections between parts of the scaffold
    • E04G7/30Scaffolding bars or members with non-detachably fixed coupling elements
    • E04G7/34Scaffolding bars or members with non-detachably fixed coupling elements with coupling elements using positive engagement, e.g. hooks or pins
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G5/00Component parts or accessories for scaffolds
    • E04G5/06Consoles; Brackets
    • E04G2005/068Connections of consoles at an angle

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
  • Wing Frames And Configurations (AREA)

Abstract

The invention relates to a support structure with at least one fixing device for a diagonal cross brace which reinforces the support structure, wherein the fixing device has open receiving fingers for being arranged on the ends of the diagonal cross brace, characterized in that the two first receiving fingers of the fixing device each have a curved end portion and the second receiving finger, which is located opposite the first receiving finger, has a pivotable end portion.

Description

Support structure
In support structures for supporting formwork assemblies in ceilings, work platforms, concrete structures and the like, diagonal cross braces are often inserted between the frame components of the structure to obtain the required static characteristics of the structure or to connect the various frame components to each other.
Heretofore, in order to fix the diagonal cross braces, suspension devices have been provided at the frame parts of the framework, each suspension device being constituted by four fingers having tiltable or pivotable ends projecting from the frame part. To this end, openings are provided at the ends of the struts of the diagonal cross braces and these openings are pushed onto the fingers. The ends of the four fingers are then pivoted so that the ends of the struts of the diagonal cross brace can no longer slide down from the receiving fingers themselves and the diagonal cross brace is securely anchored to the framework.
However, it is difficult to place the openings at the four ends of the struts of the diagonal cross brace on the receiving fingers at the same time. Additionally, during manual pivoting of the end portions of the receiving fingers, the other end of the diagonal cross brace may slide off the receiving fingers. For this reason, diagonal cross braces have hitherto been installed safely by one person, if at all with difficulty.
In order to simplify the mounting of the diagonal cross braces, the invention proposes a support framework with at least one suspension device for the diagonal cross braces which stiffen the support framework, wherein the suspension device has receiving fingers for openings provided on the ends of the diagonal cross braces, and wherein the two first receiving fingers of the suspension device each have a curved end section, and the second receiving fingers located opposite the first receiving fingers have pivotable end sections.
Providing two of the four receiving fingers necessary for fixing the diagonal cross brace with rigid curved end portions greatly simplifies the mounting of the diagonal cross brace without compromising the secure fixing of the diagonal cross brace.
Each end of the two struts of the diagonal cross brace may be suspended through its opening in a first receiving finger having a curved end, and the opening at the other end of the strut may be pushed onto one of the second receiving fingers, respectively, having a pivotable end portion, before the end portion of the second receiving finger is pivoted for securing the diagonal cross brace. Thus, either the upper or lower end of the diagonal cross brace may initially hang in the first receiving finger. The curved end portions ensure that the ends of the cross brace do not slide off the first receiving fingers when the opposite ends of the diagonal cross brace are pushed onto the second receiving fingers. In addition, the end portion of the second finger can then be easily pivoted without the diagonal cross brace sliding off the first receiving finger. In this way, one can easily install the diagonal cross braces.
The openings in the free end regions of the diagonal cross braces are through holes, each having a diameter smaller than the extension or dimension of the receiving fingers, the dimension of the receiving fingers being formed by the base portion and the end portion.
The curved end portion of the first receiving finger may preferably form an angle of 20 ° to 70 ° with the base portion of the receiving finger. The curved end portion is rigid and fixedly connected to the base portion. This angular range allows the ends of the diagonal cross braces to be easily hung while allowing the ends to be sufficiently secured after hanging.
Instead, the end portion of the second receiving finger may preferably pivot between a position parallel to the base portion of the receiving finger and a position substantially perpendicular to the base portion. In a position parallel to the base portion, the end of the diagonal cross brace can be easily pushed onto the second receiving finger. After pivoting the end portions to the 90 ° position, the diagonal cross braces are secured to the framework.
A further advantage results when the end portions of the second receiving fingers can be locked in both end positions. This may be achieved, for example, by a braking mechanism. Thus, when pushing the diagonal cross brace end onto the second receiving finger, unwanted displacement of the end portion of the finger, which could hinder the pushing operation, can be avoided. In addition, it is more difficult to unintentionally release the locking of the diagonal cross braces due to such locking.
The end portions of the first and second receiving fingers may also be tapered outwardly to facilitate pushing onto the diagonal brace.
In a preferred embodiment of the support structure, the support structure may be composed of a plurality of frames, each frame being provided with at least one suspension device for diagonally crossing the support. By connecting a plurality of these frames, which may also be of different sizes, the support framework may be adapted to the intended purpose, wherein a diagonal cross brace may be mounted on each frame, which is necessary. In different cases, it is also possible to connect the two frames to each other by means of diagonal cross braces. It is also advantageous when the first and second receiving fingers of the suspension device are located in the corner regions of the frame, respectively. In this way, the diagonal cross braces may exert optimal support forces on the frame.
The frames may also be assembled or put together with a 180 deg. rotation. When the frame is rotated 180 deg., the receiving fingers with rigid curved end portions are at the top and the receiving fingers with movable pivoting end portions are at the bottom. To increase speed and safety, a diagonal cross brace for reinforcing the support structure may first be screwed and suspended at the top, and then the lower opening in the free end area of the diagonal cross brace is pivoted into a lower receiving finger with a movable end portion and fixed in place by this movable end portion at this location. For this purpose, the end portion is pivoted to a position covering the opening of the diagonal cross brace and reliably preventing the diagonal cross brace from being pulled out of the receiving fingers.
A preferred exemplary embodiment of the frame of the support framework according to the invention is described in more detail below with reference to the drawings.
In the drawings:
FIG. 1 is a view of a frame of a support framework according to the present invention;
FIG. 2 is a detailed illustration of a first receiving finger of the frame of FIG. 1;
FIG. 3 is a detailed illustration of a second receiving finger of the frame of FIG. 1;
FIG. 4 shows the components of the support structure during assembly with two diagonally crossing brackets inserted according to the present invention;
FIG. 5 shows an enlarged detail of the frame with the receiving fingers and the curved rigid end portions;
FIG. 6 shows a partial detail of the support framework during assembly, the frame having receiving fingers with curved end portions at the bottom and movable end portions at the top; and
fig. 7 shows a partial detail of the support architecture during assembly, with the frame shown in part, having receiving fingers with rigid curved end portions at the top and receiving fingers with movable end portions at the bottom.
Fig. 1 shows a schematic illustration of a frame 10 of a support structure, which is not shown in greater detail here, and which can be assembled, for example, from a plurality of frames 10 or also from further frames which are higher.
The frame 10 has two side tubes 12, 14 which are connected to one another by two transverse tubes 16, 18. The side tubes 12, 14 may be screwed onto further tubes (not shown) of the frame 10 and/or plugged together at their ends.
In addition, first receiving fingers 20, 22 are mounted on the side tubes 12, 14 in the lower region of the side tubes 12, 14, respectively, and second receiving fingers 24, 26 for fastening diagonal cross braces (not shown) are mounted in the upper region. Four ends of the diagonal cross braces having openings may be suspended in the receiving fingers 20 to 26. To do this, the lower end of the diagonal cross brace is first threaded into the first receiving fingers 20, 22 and suspended, and then the upper end of the diagonal cross brace is pushed onto the second receiving fingers 24, 26. The diagonal cross braces are then secured in place on the receiving fingers 24, 26. Fixing this position is described in more detail with reference to fig. 2 and 3.
Fig. 2 shows an enlarged detailed illustration of the first receiving finger 20. The first receiving finger has a rigid extended end portion 20.1 which is bent downwards relative to the base portion 20.2. It is thus possible to hang from below, by means of the end portion 20.1, an opening in the lower end of one of the struts of the diagonal cross brace and to hold this opening on the base portion 20.2. Due to the curved shape of the end portion 20.1, the struts can be prevented from falling off accidentally when a slight force is applied to the diagonal braces from above. The suspension of the lower end of the second leg of the diagonal cross brace on the receiving finger 22 occurs simultaneously or offset in time with respect to the suspension of the first leg.
The upper ends of the struts of the diagonal cross brace may then be pushed onto the second receiving fingers 24, 26. The construction of the second fingers 24, 26 is illustrated using the example of the finger 24 in fig. 3. The receiving finger 24 has an end portion 24.1 hingedly supported on a base portion 24.2. The end portion 24.1 can thus be brought from a position parallel to the base portion 24.2 into the position shown bent through 90 °. When the end portion 24.1 is aligned parallel to the base portion 24.2, both portions form a long finger onto which the upper end of one of the legs of the diagonal cross brace can be pushed through the opening. The end portion 24.1 is then pivoted to the 90 deg. position, thereby locking the strut in the receiving finger 24. In the same manner, the upper end of the second leg of the diagonal cross brace is pushed over and locked by the receiving finger 26. Due to this locking, the end portion 24.1 protrudes beyond the diameter of the opening. In other words, the end portions overhang the openings and prevent the diagonal cross braces from pulling out of the receiving fingers 24, 26.
The frame structure shown in fig. 1 has first and second receiving fingers 20-26 that allow only one person to secure the diagonal cross brace to the frame 10. Furthermore, the fastening process for the diagonal cross braces is much easier and faster than with a frame according to the prior art having four lockable movable receiving fingers. The pushing in and hanging out of the ends of the diagonal cross braces is also facilitated by the fact that the end portions 20.1, 24.1 of the receiving fingers 20 to 26 taper conically towards the ends.
Fig. 4 shows a part of the support structure 40 during assembly, which support structure 40 in the shown assembled state consists of four frames 10. The four frames 10 on one side have been reinforced by a first diagonal cross brace 42 having an opening 43 at its free end. The first diagonal cross brace 42 is attached by the receiving fingers 20, 22 with rigid end portions, not shown in fig. 4, and as shown in fig. 1, is likewise attached in the receiving fingers 24 and 26 and secured by the movable end portions. By attaching the openings 43 in the second diagonal brace 44 to the receiving fingers 20, 24, the attached frames 10 are connected to each other via the second diagonal brace 44. Two diagonal cross braces (not shown) are then similarly mounted opposite the first 42 and second 44 diagonal cross braces as shown to stiffen the support structure 40 for stability under load.
Fig. 5 shows an enlarged detail of the frame 10, and the side tubes 12 of the frame 10, which are also shown in detail. The receiving fingers 20 are fixedly mounted on the side tube 12. The receiving finger consists of a base portion 20.2 and an end portion 20.1. The end portion 20.1 is bent at an angle between 20 ° and 70 °, preferably integrally formed on the base portion 20.2. The free end of the first diagonal cross brace 42 having the opening 43 is threaded onto the base portion 20.2 through the rigid curved end portion 20.1. Similarly, openings 43 are provided on the opposite ends of the struts of the first diagonal brace 42, which openings 43 are pushed onto receiving fingers having movable end portions.
Fig. 6 shows a partial detail of the assembly of the support framework with the frame 10, showing the receiving fingers 20, 24. Receiving fingers 20 with curved end portions are formed on the frame in the lower region and receiving finger 24 mounts with movable end portions 24.1 are fixed in the upper region of the frame 10. Receiving fingers 20, 24 are formed on the side tube 12 and are fixed in this position. Fig. 6 shows how a worker 50 places a first diagonal cross brace 42 on a frame 10 having receiving fingers 20, 24 according to the present invention. A first diagonal cross brace 42 having an opening 43 is first screwed onto the base portion 20.2 at an angle via a not shown rigid end portion of the receiving finger 20. The first diagonal cross brace 42 may be attached in the receiving finger 24 with the movable end portion 24.1 while it is threaded onto the receiving finger 20 by its free end. The free end of the first diagonal brace 42 is pushed through the opening 43 onto the particular base portion 24.2 and the movable end portion 24.1 is then pivoted so that it overhangs the opening 43 and fixes the positioning position of the first diagonal brace 42. With the illustrated configuration of the receiving fingers 20, 24 on the frame 10, the worker 50 can safely mount the first diagonal brace 42 and the additional diagonal braces on the frame for supporting the framework without the assistance of others.
Fig. 7 shows a support structure and a detail of the assembly of the frame 10 shown in detail, the frame 10 having in an upper region of the frame 10 receiving fingers 20 with rigid curved end portions 20.1 and in a lower region of the frame 10 receiving fingers 24 with movable end portions. The frame 10 shown in fig. 7 is rotated 180 deg. compared to the frame of fig. 1 and this figure shows how the first diagonal cross braces 42 are suspended in the receiving fingers 20 in the upper part of the frame 10. The first diagonal frame 42 is threaded onto the base portion 20.2 by the rigid curved end portion 20.1 and then pivoted onto the wire receiving fingers 24. The opening 43 in the first diagonal brace 42 is pushed over the receiving finger 24 and then the position of the first diagonal brace 42 is fixed by pivoting the movable end.

Claims (8)

1. A support structure with at least one suspension device for a diagonal cross brace (42, 44), which diagonal cross brace (42, 44) reinforces the support structure (40), wherein the suspension device has receiving fingers (20 to 26) for openings (43) provided on the ends of the diagonal cross brace (42, 44), characterized in that two first receiving fingers (20, 22) of the suspension device each have a curved end portion (20.1) and a second receiving finger (24, 26) located opposite the first receiving finger has a pivotable end portion (24.1).
2. The support architecture according to claim 1, characterized in that each end of two struts of the diagonal cross braces (42, 44) can be suspended through its opening (43) in the first receiving fingers (20, 24) with curved end portions (20.1), and the opening (43) at the other end of the struts can be pushed onto one of the second receiving fingers (24, 26) with pivotable end portions (24.1), respectively, before the end portions (24.1) of the second receiving fingers (24, 26) are pivoted for fixing the diagonal cross braces (42, 44).
3. The support structure according to claim 1 or 2, characterized in that the curved end portion (20.1) of the first receiving finger (20, 22) forms an angle of 20 ° to 70 ° with a base portion (20.2) of the receiving finger (20, 22).
4. The support architecture of any one of the preceding claims, wherein the end portion (24.1) of the second receiving finger (24, 26) is pivotable between a position parallel to the base portion (24.2) of the receiving finger (24, 26) and a position substantially perpendicular to the base portion (24.2).
5. The support architecture according to claim 4, characterized in that the end portion (24.1) is lockable in two end positions.
6. The support framework of any one of the preceding claims, wherein the end portions (20.1, 24.1) of the first and second receiving fingers (20 to 26) taper conically towards the outside.
7. A support structure according to any one of the preceding claims, characterised in that it can be assembled from a plurality of frames (10), each provided with at least one suspension device for diagonal cross braces (42, 44).
8. The support architecture according to claim 7, characterized in that the first and second receiving fingers (20-26) of the suspension means are located in corner regions of the frame (10), respectively.
CN201980012337.5A 2018-03-22 2019-03-18 Support structure Pending CN111989446A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE202018101602.4U DE202018101602U1 (en) 2018-03-22 2018-03-22 shoring
DE202018101602.4 2018-03-22
PCT/EP2019/056654 WO2019179913A1 (en) 2018-03-22 2019-03-18 Supporting framework

Publications (1)

Publication Number Publication Date
CN111989446A true CN111989446A (en) 2020-11-24

Family

ID=65904391

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201980012337.5A Pending CN111989446A (en) 2018-03-22 2019-03-18 Support structure

Country Status (8)

Country Link
US (1) US20210054638A1 (en)
EP (1) EP3768915B1 (en)
CN (1) CN111989446A (en)
DE (1) DE202018101602U1 (en)
ES (1) ES2922239T3 (en)
PL (1) PL3768915T3 (en)
WO (1) WO2019179913A1 (en)
ZA (1) ZA202005138B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017216255A1 (en) * 2017-09-14 2019-03-14 Peri Gmbh Scaffold, scaffolding and method for setting up a scaffold
ES2968036T3 (en) * 2019-08-05 2024-05-06 Sist Tecnicos De Encofrados Sa Anchoring system with diagonal pointing and formwork strut
DE202020104197U1 (en) * 2020-04-15 2020-08-19 Rux Gmbh Scaffolding

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4188143A (en) * 1978-04-05 1980-02-12 Matsura Norio Device for retaining scaffold member
US4630956A (en) * 1984-10-05 1986-12-23 Safway Scaffolds Company Of Houston Scaffolding connection and retention device and method
JP2005127036A (en) * 2003-10-24 2005-05-19 Sumitomo Metal Steel Products Inc Standard frame for scaffolding
CN101509316A (en) * 2008-02-14 2009-08-19 阿禄因康株式会社 Security guardrail
CN206512999U (en) * 2017-03-01 2017-09-22 长安大学 A kind of assembled gate-type construction bracket of adjustable-size

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2701167A (en) * 1951-02-13 1955-02-01 Universal Mfg Co Bracing for scaffolds and the like
US2847259A (en) * 1956-03-29 1958-08-12 David E Beatty Scaffold brace fastening means
US3091485A (en) * 1962-08-23 1963-05-28 Jackson George Wilbert Locking bracket for scaffolding brace bars
US3564803A (en) * 1968-12-06 1971-02-23 Mills Scaffold Co Ltd Extensible scaffold and other load supporting elements
US4462197A (en) * 1980-09-10 1984-07-31 Harsco Corporation Shoring system and parts thereof
DE102004005636A1 (en) * 2004-02-04 2005-08-25 Hünnebeck GmbH Fixing element used as part of a scaffold, especially a facade scaffolding, is S- or zigzag-shaped
JP4909291B2 (en) * 2008-01-28 2012-04-04 日鐵住金建材株式会社 Scaffolding frame

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4188143A (en) * 1978-04-05 1980-02-12 Matsura Norio Device for retaining scaffold member
US4630956A (en) * 1984-10-05 1986-12-23 Safway Scaffolds Company Of Houston Scaffolding connection and retention device and method
JP2005127036A (en) * 2003-10-24 2005-05-19 Sumitomo Metal Steel Products Inc Standard frame for scaffolding
CN101509316A (en) * 2008-02-14 2009-08-19 阿禄因康株式会社 Security guardrail
CN206512999U (en) * 2017-03-01 2017-09-22 长安大学 A kind of assembled gate-type construction bracket of adjustable-size

Also Published As

Publication number Publication date
EP3768915B1 (en) 2022-05-04
EP3768915A1 (en) 2021-01-27
WO2019179913A1 (en) 2019-09-26
ES2922239T3 (en) 2022-09-12
ZA202005138B (en) 2023-05-31
PL3768915T3 (en) 2022-08-01
DE202018101602U1 (en) 2019-06-27
US20210054638A1 (en) 2021-02-25

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