WO2024256868A1 - Système de pont en treillis - Google Patents

Système de pont en treillis Download PDF

Info

Publication number
WO2024256868A1
WO2024256868A1 PCT/IB2024/000300 IB2024000300W WO2024256868A1 WO 2024256868 A1 WO2024256868 A1 WO 2024256868A1 IB 2024000300 W IB2024000300 W IB 2024000300W WO 2024256868 A1 WO2024256868 A1 WO 2024256868A1
Authority
WO
WIPO (PCT)
Prior art keywords
truss bridge
frame
truss
clamp
closing mechanism
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.)
Ceased
Application number
PCT/IB2024/000300
Other languages
English (en)
Inventor
Simon SKAANING
Amalie KONDRUP MADSEN
Lasse BLUMENSAAT
Rasmus Bo JENSEN
Christian NYLANDER ØROM
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.)
Yellowbeak Aps
Original Assignee
Yellowbeak 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 Yellowbeak Aps filed Critical Yellowbeak Aps
Priority to EP24751325.2A priority Critical patent/EP4728150A1/fr
Publication of WO2024256868A1 publication Critical patent/WO2024256868A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C3/08—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal with apertured web, e.g. with a web consisting of bar-like components; Honeycomb girders
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/19—Three-dimensional [3D] framework structures
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/19—Three-dimensional [3D] framework structures
    • E04B1/1903—Connecting nodes specially adapted therefor
    • E04B1/1909—Connecting nodes specially adapted therefor with central cylindrical connecting element
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H3/00—Buildings or groups of buildings for public or similar purposes; Institutions, e.g. infirmaries or prisons
    • E04H3/10—Buildings or groups of buildings for public or similar purposes; Institutions, e.g. infirmaries or prisons for meetings, entertainments, or sports
    • E04H3/22—Theatres; Concert halls; Studios for broadcasting, cinematography, television or similar purposes
    • E04H3/24—Constructional features of stages
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B2/00—Friction-grip releasable fastenings
    • F16B2/02—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B2/00—Friction-grip releasable fastenings
    • F16B2/02—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening
    • F16B2/18—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening using cams, levers, eccentrics, or toggles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
    • F16B7/04—Clamping or clipping connections
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/19—Three-dimensional [3D] framework structures
    • E04B2001/1957—Details of connections between nodes and struts
    • E04B2001/196—Screw connections with axis parallel to the main axis of the strut
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/19—Three-dimensional [3D] framework structures
    • E04B2001/1981—Three-dimensional [3D] framework structures characterised by the grid type of the outer planes of the framework
    • E04B2001/1984—Three-dimensional [3D] framework structures characterised by the grid type of the outer planes of the framework rectangular, e.g. square, grid
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C2003/0486—Truss like structures composed of separate truss elements
    • E04C2003/0495—Truss like structures composed of separate truss elements the truss elements being located in several non-parallel surfaces

Definitions

  • the invention relates to truss bridge systems, in particular for the usage at events, such as concerts, fairs and TV productions.
  • a single event may include everything from individual truss bridges to several kilometers of connected truss bridges.
  • the task of the event technician is to control and set up sound and light during the events, but also to assemble and prepare the truss bridge constructions before holding any event.
  • the associated work process results in poor work postures, noise nuisances and transport challenges.
  • a first aspect relates to a truss bridge system, preferably for the usage at events, such as concerts, fairs and TV productions, which truss bridge system comprises:
  • each truss bridge comprising two or more stringers and a plurality of inclined struts mounted between the stringers;
  • first frame system adapted for mounting on the one end of the first truss bridge, the first frame system comprising two or more mounting heads;
  • a second frame system adapted for mounting on the one end of the second truss bridge, the second frame system comprising two or more mounting heads;
  • a second aspect relates to a truss bridge system, preferably for the usage at events, such as concerts, fairs and TV productions, which truss bridge system comprises:
  • each truss bridge comprising two or more stringers and a plurality of inclined struts mounted between the stringers;
  • first frame system adapted for mounting on the one end of the first truss bridge, the first frame system comprising two or more mounting heads;
  • a second frame system adapted for mounting on the one end of the second truss bridge, the second frame system comprising two or more mounting heads;
  • clamping system is adapted for anchoring around two mounting heads each of which are mounted on their own first and second frame systems.
  • a truss bridge is designed based on an old building principle, wherein constructions are built up from triangles to obtain absolute tractive and compressive forces, which allows for long heavy loads with a limited use of material.
  • the construction is called a truss.
  • the advantage of truss bridges for scene setting is their modular construction, which allows the possibility of building smaller pieces together, if needed, and with retained strength.
  • There are several different types of truss bridges typically with two or more stringers (oblong metal beams, typically round metal pipes) and a plurality of inclined struts between the stringers.
  • the selection of the truss bridge type depends on the task and the weight to be carried by the construction.
  • the majority of truss bridges for the above-mentioned purpose are typically made of aluminium some of which are powder-varnished and others are untreated.
  • the present invention relates to an assembled truss bridge system which, with its novel assembly system, ensures a rapid and soundless assembly between truss bridges.
  • the system comprises a simple assembly principle, wherein a clamp, preferably with double safeguard, is closed and locked around the heads of the truss bridge.
  • the truss bridge system is currently tested for a maximum load of 220 kg at a span of 16 meters.
  • the novel clamping system and frame system reduce the assembly time and the workload, where there is no need for rotating the truss bridges.
  • the clamping system is built up with several functions and enables a tool-free solution as well as a faster, easier and more soundless work process. Moreover, damage to the varnish of the truss bridge caused by tools is prevented.
  • the frame system which comprises a frame and a plurality of, preferably detachably mounted mounting heads, ensures a distance to the support such that the clamping system, without any hindrance, can be mounted around each mounting head, mounted in the frame.
  • the frame system is mounted on the stringers, preferably by being welded thereon.
  • the frame system can be part of an existing truss bridge which, by way of example, might have been previously used in another truss bridge system.
  • the mounting heads are replaceable in case they are exposed to impacts or subject to other wear and tear.
  • the heads can be unscrewed with, by way of example, a spanner.
  • the mounting heads comprise a conical collar ensuring that they cannot be screwed in crookedly, thereby always achieving the optimal contact with the frame.
  • the frame may comprise depressions adapted for receiving the conical collar.
  • Other depressions can be formed on the outside of the frame, preferably be placed in the edge sections, preferably coated with a rubber item or another elastomeric item to ensure a stable and safe transport.
  • the depressions can be adapted for receiving a pipe item from another truss bridge. In case that the rubber coating wears out, it can, in some embodiments, be replaced simply by loosening one or more screws which are adapted for anchoring the rubber item to the frame.
  • the clamping system is adapted for anchoring around two mounting heads each of which are mounted on their own truss bridge. In this way, the two truss bridges are coupled together.
  • the clamping system comprises a clamp and a closing mechanism.
  • the clamp comprises a first part hingedly connected to a second part.
  • the first and the second parts are together adapted for surrounding two opposite mounting heads. When the system is assembled, each of the two opposite mounting heads will be mounted on their own truss bridge.
  • the closing mechanism is adapted for detachable fastening of the first part of the clamp to the second part of the clamp.
  • the first part of the clamp preferably comprises a first end and a second end.
  • the second part of the clamp preferably comprises a first end and a second end. In one or more embodiments, the one end of the first part is hingedly connected to the other end of the second part.
  • the other end of the first part is hingedly connected to the closing mechanism, and wherein the closing mechanism is adapted for detachable fastening to the first end of the second part.
  • the closing mechanism can advantageously be configured as a handle, configured, by ay of example, to be rounded, which indicates a natural grip surface for the hand.
  • the handle can be configured with grooved interaction surfaces to improve the grip of the fingers around the handle.
  • the closing mechanism can be configured with a double safeguard.
  • the closing mechanism can, by way of example, be configured with a first hook and a second hook, preferably, the one hook is configured for detachable fastening to the first end of the second part, and the other hook is configured for detachable fastening to the first part.
  • the second hook is preferably hingedly connected to the first hook.
  • the second hook can, by way of example, be spring-loaded. The double safeguard prevents the first hook from unlatching in an unintentional manner.
  • the inner sides of the first part and the second part may comprise an indicator colour such as yellow. If the colour is visible, this indicates that the clamping system is not correctly closed when it is attached to the truss bridges.
  • the inner sides of the first part and the second part may comprise one or more lamellas, preferably manufactured from an elastomeric material, such as rubber. These lamellas ensure a strong, pre-stressed assembly around the mounting heads.
  • each mounting head comprises one or more grooves and/or holes
  • the clamping system comprises a corresponding number of lamellas and/or teeth which are adapted for fitting down into said grooves and/or holes.
  • the mounting heads are detachably mounted in the frame system.
  • the mounting heads comprise a conical collar
  • the frame system comprises a frame with depressions adapted for receiving the conical collar
  • the first frame system comprises a frame with depressions formed on the outside of the frame, which depressions are adapted for receiving a stringer from the second truss bridge on which the second frame system is mounted.
  • the clamping system comprises a clamp and a closing mechanism.
  • the clamp comprises a first part hingedly connected to a second part, and wherein the first and the second parts together are adapted for surrounding two mounting heads each of which are mounted on their own first and second frame systems.
  • the closing mechanism is adapted for detachable fastening of the first part of the clamp to the second part of the clamp.
  • the first part of the clamp comprises a first end and a second end
  • the second part of the clamp comprises a first end and a second end
  • the one end of the first part is hingedly connected to the other end of the second part
  • the other end of the first part is hingedly connected to the closing mechanism
  • the closing mechanism is adapted for detachable fastening to the first end of the second part
  • the closing mechanism is configured with a double safeguard, wherein the closing mechanism is configured with a first hook and a second hook, wherein the one hook is configured for detachable fastening to the first end of the second part, and wherein the other hook is configured for detachable fastening to the first part.
  • Fig. 1 shows a truss bridge according to the invention in a partly exploded view.
  • Figs. 2 and 3 show the set-up process of a truss bridge system according to the invention.
  • Fig. 4 shows an exploded view of the essential parts of the invention.
  • Fig. 5 shows a mounting head according to the invention in perspective.
  • Fig. 6 shows in perspective a clamping system according to the invention in an open configuration.
  • Fig. 7 shows in perspective a clamping system according to the invention in a closed configuration.
  • Fig. 9 shows a part of a truss bridge system according to the invention.
  • Fig. 10 shows a part of a truss bridge according to the invention in a partly exploded view.
  • Fig. 11 shows a close-up view of stacked truss bridges according to the invention.
  • Fig. 12 shows in perspective a stack of truss bridges according to the invention on a carriage.
  • Fig. 1 shows a truss bridge in a partly exploded view.
  • a truss bridge 5 with four stringers 6 and a plurality of inclined struts 7 mounted between the stringers can be seen here.
  • a first frame system is mounted on the one end of the truss bridge 5.
  • the frame system comprises a frame 1 and four mounting heads 3 adapted for detachable mounting in depressions 2 of the frame. Furthermore, a clamping system 4 is shown.
  • the Figures 2 and 3 show the set-up process of a truss bridge system.
  • the truss bridge system arrives at a venue in a truck, where it is unloaded and transported into the site by means of small carriages. Subsequently, the individual truss bridges are lifted down from the carriage, placed in extension of each other and pulled together.
  • the truss bridge system comprises minimum two truss bridges, both constructed as described above.
  • the clamping system 4 is placed around two opposite mounting heads 3 and are locked by means of a closing mechanism integrated into the clamping system 4.
  • the truss bridge system can be used for the suspension of equipment (Step 9).
  • the truss bridge system can, by way of example, be suspended in wires, or be built up as arcs with pillars and girder. The specifically used clamping system will be described in further detail below
  • Figure 4 shows an exploded view of the essential parts of the invention, namely frame 1, mounting head 3 and clamping system 4.
  • the designs of these elements may vary and are shown here in preferred embodiments.
  • the clamping system 4 is shown in an open configuration 4B og and in a closed configuration 4A.
  • Fig. 5 shows a mounting head 3 according to the invention which is adapted for detachable mounting in the frame system.
  • the mounting head 3 comprises a first part 3.1 with thread for mounting in the frame system’s frame 1, and a second part 3.2 in the form of a conical collar adapted for fitting down into one of the frame’s (here four) depressions 2.
  • the mounting head 3 comprises a third part 3.3 with a groove 3.31 configured for receiving a lamella 4.13 (see Figure 7) from the clamping system.
  • the third part is generally configured for abutment for the clamping system.
  • the groove 3.31 ensures a very precise mounting of the clamping system.
  • the Figures 6 and 7 show a preferred embodiment of the clamping system 4 according to the invention in an open 4A and closed 4B configuration, respectively.
  • the clamping system 4 comprises a clamp 4.1 and a closing mechanism 4.2.
  • the clamp is shown comprising a first part 4.11 hingedly connected to a second part 4.12, and wherein the first 4.11 and the second 4.12 parts together are adapted for surrounding two mounting heads each of which are mounted on their own first and second frame systems.
  • the closing mechanism 4.2 is adapted for detachable fastening of the first part of the clamp 4.11 to the second part of the clamp 4.12.
  • the first part of the clamp 4.11 comprises a first end and a second end, and wherein the second part of the clamp 4.12 comprises a first end and a second end.
  • the one end of the first part of the clamp 4.11 is hingedly connected to the other end of the second part of the clamp 4.12, and the other end of the first part of the clamp 4.11 is hingedly connected to the closing mechanism 4.2.
  • the closing mechanism 4.2 is adapted for detachable fastening to the first end of the second part of the clamp 4.12 by means of a first hook 4.21 .
  • the closing mechanism 4.2 is configured with a double safeguard consisting of said first hook 4.21 and a second hook 4.22 which are configured for detachable fastening to the first part of the clamp 4.11. Firstly, the first hook 4.21 is fastened (see Step 6 of Figure 2), and then the second hook 4.22 is fastened (see Step 7 of Figure 3).
  • FIG 8 shows the preferred clamping system 4 in a closed configuration around two mounting heads 3, and Figure 9 shows the same, wherein each of the mounting heads (not visible) are mounted in their own frames 1A, 1B each welded together with their own truss bridge (here, directly to the stringers 6).
  • Figure 10 shows a part of a truss bridge according to the invention in a partly exploded view.
  • Depressions 1.1 formed on the outside of the frame 1 and placed in the edge sections can be seen here.
  • the depressions 1.1 are each provided with a rubber item 1.2 to ensure a stable and safe transport.
  • the depressions are furthermore adapted for receiving a stringer 6 from another truss bridge (see Figure 11) such that the truss bridges can be stacked.
  • the rubber item 1 .2 is worn out, it is replaceable simply by loosening two screws 1 .3 which are adapted for anchoring the rubber item 1.2 to the frame 1.
  • Fig. 12 shows a stack of truss bridges according to the invention on a carriage.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • General Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Multimedia (AREA)
  • Bridges Or Land Bridges (AREA)

Abstract

La présente invention concerne des systèmes de pont en treillis, en particulier pour l'utilisation à des événements, tels que des concerts, des foires et des productions télévisées. Les ponts en treillis individuels sont assemblés au moyen de pinces qui sont fixées autour de têtes de montage spécialement conçues.
PCT/IB2024/000300 2023-06-16 2024-06-14 Système de pont en treillis Ceased WO2024256868A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP24751325.2A EP4728150A1 (fr) 2023-06-16 2024-06-14 Système de pont en treillis

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DKPA202330085A DK181916B1 (da) 2023-06-16 2023-06-16 Trussbro system
DKPA202330085 2023-06-16

Publications (1)

Publication Number Publication Date
WO2024256868A1 true WO2024256868A1 (fr) 2024-12-19

Family

ID=92208694

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2024/000300 Ceased WO2024256868A1 (fr) 2023-06-16 2024-06-14 Système de pont en treillis

Country Status (3)

Country Link
EP (1) EP4728150A1 (fr)
DK (1) DK181916B1 (fr)
WO (1) WO2024256868A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4776721A (en) * 1985-09-13 1988-10-11 Interlock Structures International, Inc. Connecting apparatus
US6986230B2 (en) * 2002-06-28 2006-01-17 Eagle Development Corporation Foldable support structure with hinged wall members
US20130291477A1 (en) * 2012-05-02 2013-11-07 Les Enceintes Acoustiques Unisson Inc. Structural trusses with monolithic connector plate members

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6634823B2 (en) * 2002-01-18 2003-10-21 Michael Sciortino Truss union connector & truss mount
CN108779638A (zh) * 2016-02-05 2018-11-09 保力集团有限责任公司 用于连接结构部件的联接器、设置有联接器的桁架以及相关的方法和用途
CN106436901B (zh) * 2016-11-21 2018-09-14 无锡市森科金属制品有限公司 一种桁架连接结构
CN206771268U (zh) * 2017-04-25 2017-12-19 东莞市乐业五金有限公司 一种可快速拆装的舞台灯钩
CN109025398A (zh) * 2018-07-17 2018-12-18 广州市耀纳舞台科技有限公司 一种多角度桁架连接定位装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4776721A (en) * 1985-09-13 1988-10-11 Interlock Structures International, Inc. Connecting apparatus
US6986230B2 (en) * 2002-06-28 2006-01-17 Eagle Development Corporation Foldable support structure with hinged wall members
US20130291477A1 (en) * 2012-05-02 2013-11-07 Les Enceintes Acoustiques Unisson Inc. Structural trusses with monolithic connector plate members

Also Published As

Publication number Publication date
DK202330085A1 (da) 2025-01-24
EP4728150A1 (fr) 2026-04-22
DK181916B1 (da) 2025-03-20

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