EP4047156B1 - Planche de bordure en matière plastique - Google Patents

Planche de bordure en matière plastique Download PDF

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Publication number
EP4047156B1
EP4047156B1 EP22155864.6A EP22155864A EP4047156B1 EP 4047156 B1 EP4047156 B1 EP 4047156B1 EP 22155864 A EP22155864 A EP 22155864A EP 4047156 B1 EP4047156 B1 EP 4047156B1
Authority
EP
European Patent Office
Prior art keywords
toe board
hollow profile
plastic
long side
toe
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
EP22155864.6A
Other languages
German (de)
English (en)
Other versions
EP4047156B8 (fr
EP4047156C0 (fr
EP4047156A1 (fr
Inventor
Christian Rytka
Christoph Maurer
David BOTOR
Reto Zeltner
Barbara Tscharner
Rico Tscharner
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.)
Procon Btw GmbH
Original Assignee
Procon Btw GmbH
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Filing date
Publication date
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Publication of EP4047156A1 publication Critical patent/EP4047156A1/fr
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Publication of EP4047156B1 publication Critical patent/EP4047156B1/fr
Publication of EP4047156C0 publication Critical patent/EP4047156C0/fr
Publication of EP4047156B8 publication Critical patent/EP4047156B8/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G5/00—Component parts or accessories for scaffolds
    • E04G5/14—Railings
    • E04G5/145—Toe boards therefor
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G5/00—Component parts or accessories for scaffolds
    • E04G5/08—Scaffold boards or planks
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G1/00—Scaffolds primarily resting on the ground
    • E04G1/15—Scaffolds primarily resting on the ground essentially comprising special means for supporting or forming platforms; Platforms
    • E04G1/153—Platforms made of plastics, with or without reinforcement
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G7/00—Connections between parts of the scaffold
    • E04G7/02—Connections between parts of the scaffold with separate coupling elements
    • E04G7/28—Clips or connections for securing boards
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G7/00—Connections between parts of the scaffold
    • E04G7/02—Connections between parts of the scaffold with separate coupling elements
    • E04G7/28—Clips or connections for securing boards
    • E04G2007/285—Clips or connections for securing boards specially adapted for toe boards

Definitions

  • the invention relates to a toe board for a scaffolding for the lateral delimitation of running and/or working surfaces of scaffolding decking.
  • toe boards are used to limit the sides of scaffolding surfaces in order to prevent people from slipping to the side and/or objects from falling. They have a board body, which usually consists of solid wood or an aluminum or steel profile, and has a rectangular board profile. Connecting pieces made of steel or aluminum are attached to the narrow front side edges using screws or rivets, which are used to create a connection to the scaffolding or an adjacent toe board.
  • Such toeboards are, for example DE1960069U , DE3813513A1 , EP1950360A1 , DE102008023525A1 or EP1950360A1 known.
  • Plastic toe boards are also disclosed.
  • DE3434362A1 a hollow chamber plank made of plastic for scaffolding construction, whereby the core of the plastic plank consists of high chambers made of hard PVC.
  • WO0104437A1 describes a scaffolding plank made of plastic, which is reinforced with glass fibers and optionally with steel.
  • GB2346921A discloses a rectangular scaffold panel made of polymer material with a foamed polymer core.
  • the document FR3077592 discloses a toe board according to the preamble of claim 1.
  • toeboards made of wood have mainly become established because they are light, inexpensive and easy to manufacture.
  • the disadvantage of wooden toe boards is that they begin to look worn and worn out after just a few years due to mechanical wear and weathering, which leads to an unaesthetic appearance on a construction site.
  • damaged wooden boards can lead to injuries.
  • aluminum toeboards are light, they are comparatively expensive and time-consuming to produce.
  • Steel toeboards are also complex to manufacture, and handling them involves a significant risk of injury due to sharp edges in the edge area.
  • Plastic toeboards have not yet become established in practice because the known plastic toeboards are too expensive, too heavy or not stable enough.
  • the present invention is based on the object of providing a toeboard for a scaffolding which is durable, stable, visually appealing, light, cost-efficient and sustainable.
  • a toe board for a scaffold according to claim 1 which is formed from a hollow profile made of plastic with a first long side and a second long side and two narrow side edges, at least one of the long sides of the hollow profile being curved in cross section.
  • Toe boards must be high Meet requirements regarding stability/impact strength and rigidity with the lowest possible weight. For example, toe boards with a reference length of 3 m should ideally not weigh more than 6 kg, should not bend more than 35 mm in the middle of the toe board under a load of 150 N, i.e. have a high level of rigidity, and can withstand a fall height of 1 m without damage.
  • the toeboard should be exposed to sunlight and weather conditions can reach a lifespan of 10 years and can preferably be dyed in many colors.
  • the toe board according to the invention meets these requirements thanks to the special hollow profile made of plastic. With a hollow profile it is possible to produce a toe board with less weight. Material can also be saved, making the toe board cheaper.
  • the curvature of at least one long side of the hollow profile results in a higher bending moment of resistance than with a rectangular hollow profile, which makes the toe boards more resistant to bending.
  • Curved is understood to mean a shape that has the shape of a curvature, an arch, a curvature or a crescent.
  • the term angular is understood to mean a shape which has one or more obtuse angles, with the apex of the angle being arranged in the middle or outside the middle of the long side.
  • the curved shape is chosen so that preferably a large part of the plastic mass of the hollow profile is as far away as possible from the neutral phase in order to achieve the highest possible bending moment of resistance.
  • the neutral phase also known as the neutral fiber or zero line, is the fiber or layer of a beam cross-section whose length does not change when twisted or bent. The stress there does not cause any tensile or compressive stress.
  • both long sides i.e. the first long side and the second long side
  • the two long sides particularly preferably run parallel to one another.
  • the toe boards can be stacked with parallel long sides, which is an additional advantage of the toe boards according to the invention.
  • At least one of the longitudinal sides of the hollow profile is designed to be curved outwards in cross section.
  • the term outside here means the direction of the curvature, which points away from the center line of the toe board.
  • the first long side of the hollow profile is curved outwards and is also called the outer long side.
  • the second longitudinal side is flat in the cross section of the hollow profile or is preferably curved inwards.
  • the second long side is also called the inner long side.
  • the term inside here means the direction of the curvature, which points towards the center line of the toe board.
  • the two long sides of the hollow profile run parallel to one another and the first outer long side is curved outwards and the second inner longitudinal side is curved inwards.
  • the at least one outwardly curved or angled long side is attached in the direction of the outside of the scaffolding floor.
  • the first long side is preferably arranged on the outer side of the toe board in the direction of the outside of the scaffold floor.
  • the second longitudinal side is preferably arranged on the inner side of the toe board in the direction of the running surface of the scaffold floor.
  • the inner side of the toe board serves as a lateral boundary for scaffolding floors.
  • a curved shape is used.
  • This half-moon shape leads to particularly stiff toeboards, especially when a large amount of material is at the greatest possible distance from the neutral fiber.
  • the outer radii of the two long sides are preferably parallel to one another.
  • the insides of the two long sides can have different radii or preferably a partially elliptical shape.
  • the two narrow side edges of the toe board each have two parallel flat surfaces, perpendicular to the narrow side edges. This leads to better stackability of the toe boards, especially with curved long sides.
  • the toeboard according to the invention is preferably made from a thermoplastic.
  • suitable thermoplastics are polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC) and polyethylene terephthalate (PET). PET is particularly preferred, and glycol-modified PET (PET-G) is even more preferred.
  • PET is particularly preferred, and glycol-modified PET (PET-G) is even more preferred.
  • the plastic is preferably made partly or completely from recycled plastic. Plastic recyclates are particularly cost-effective and sustainable. Thermoplastics are recyclable, which means that the thermoplastic toeboard according to the invention can be recycled again after use. This further contributes to sustainability.
  • the hollow body is preferably made of plastic using an extrusion process. Other possible manufacturing processes include pultrusion, injection molding (GIT, WIT), pressing combined with welding or with foldable or soluble cores or 3D printing.
  • the hollow profile made of plastic is reinforced with fibers, preferably with glass fibers.
  • suitable fibers are natural fibers, preferably from waste, wood, cellulose, flax, coconut, hemp, bamboo or rice husks.
  • the hollow profile preferably has 10 to 70% by weight of fibers, preferably 30 to 50% by weight of fibers, particularly preferably 40 to 45% by weight of fibers, based on the total weight of the hollow profile.
  • the hollow profile has at least one reinforcing rib between the two long sides, which preferably connects the first long side and the second long side to one another.
  • the at least one reinforcing rib is arranged in the middle of the long sides perpendicular to the long sides and connects the vertices of the two long sides to one another.
  • Several, for example two, three or four, reinforcing ribs can also be arranged between the two long sides, which preferably connect the two long sides to one another.
  • the reinforcing ribs can be arranged perpendicular to the long sides or obliquely to the long sides, for example in a zigzag shape.
  • the toeboard has ribs with free ends on the inside of the long sides.
  • These free-ended ribs can be used in addition to the at least one reinforcing rib or instead of the reinforcing rib in the hollow profile.
  • the free-ended ribs are preferably arranged in the area of or near the apex of the first outer long side or in the area or near the narrow side edges at the ends of the second inner long side.
  • the ribs with free ends are arranged both in the area or near the apex of the first outer long side and in the area or near the narrow side edges at the ends of the second inner long side.
  • the hollow profile preferably has a wall thickness of 1 to 5 mm.
  • This wall thickness can be partially reinforced to increase the stability and bending stiffness of the toe boards.
  • the first outer long side in the middle region near the apex or the second inner long side in the outer region near the narrow side edges has increased wall thicknesses.
  • the increased wall thicknesses are particularly preferably arranged both in the central area near the apex of the first outer long side and in the outer area near the narrow side edges at the ends of the second inner long side.
  • the increased wall thickness has a similar effect to the free-ended ribs.
  • the hollow profile at least partially has a further plastic layer on the outside of the profile.
  • at least the outside of the first outer longitudinal side has a further plastic layer.
  • the further plastic layer completely encloses the hollow profile.
  • the plastic of the further plastic layer is preferably a thermoplastic, preferably a UV-resistant thermoplastic Plastic.
  • the plastic of the further plastic layer is preferably made from recycled plastic.
  • Thermoplastics for the further plastic layer are acrylonitrile-styrene-acrylate copolymers (ASA), polyethylene (PE), in particular high-density polyethylene (HDPE), polymethyl methacrylate (PMMA), PET, styrene-acrylonitrile copolymers (SAN), acrylonitrile -Butadiene styrene (ABS), PVC, polyamide (PA) or polypropylene (PP).
  • ASA acrylonitrile-styrene-acrylate copolymers
  • the plastic of the further plastic layer can be reinforced with glass or natural fibers.
  • the plastic of the further plastic layer is UV-resistant or additionally contains a UV-resistant material, preferably an inorganic pigment, which maintains the color intensity of the further plastic layer over a longer period of time. This further leads to the longevity of the toe board and a better aesthetic appearance.
  • toe boards can be made in any color, including signal colors, and advertising or company names can be attached via the additional plastic layer.
  • the further plastic layer preferably has a thickness between 0.1 mm and 3 mm, preferably a thickness of 0.5 mm.
  • the further plastic layer is produced, or co-extruded, together with the hollow profile made of plastic, for example, using a co-extrusion process.
  • the additional plastic layer can also be sprayed onto the hollow plastic profile using other methods, such as painting. If the hollow profile of the toe board is made from a UV-resistant plastic that can be easily colored, no further plastic layer is necessary.
  • the hollow profile can be partially or completely filled with a material of low density, also called low-density material.
  • a material of low density also called low-density material.
  • connecting elements or connecting pieces are used on the end faces, which are made using Rivets, screws or clamping devices are used to establish a connection to a scaffold or an adjacent toe board.
  • the toe board additionally has a connecting element on the end faces for fastening to a scaffold, the connecting element being manufactured in one piece with the toe board.
  • the connecting element is preferably produced from the end faces of the toe board by means of a pressing process, in which the end silks of the toe board are placed in a tool and formed into integrated connecting elements.
  • a further subject of the present invention relates to a toe board comprising a connecting piece made of plastic for attaching a toe board according to the invention to a scaffolding, the connecting piece having a fastening element for attaching the toe board to a scaffold and an insertion element for insertion into the toeboard, the insertion element being complementary is designed to form the hollow profile of the toe board.
  • the fastening element preferably has at least one opening for receiving screws, rivets or other fastening means for fastening to scaffolding.
  • the fastening element can either be attached directly to a scaffold or another toeboard using screws, rivets or other fasteners.
  • the fastening element is mounted on a scaffold via a scaffold fitting, preferably a metal fitting.
  • the fastening element is preferably made of a thermoplastic and is preferably reinforced with fibers, preferably with recycled glass fibers.
  • the plug-in element is designed to complement the hollow profile.
  • the insertion element has at least one elevation and at least one depression, wherein in the inserted state the elevation is clamped to the inside of the first longitudinal side of the hollow profile and the depression is clamped to the inside of the second longitudinal side of the hollow profile.
  • the insertion element has several elevations and several depressions, which are arranged alternately and can be moved relative to one another, and function according to the harmonica principle. An insert element designed in this way contracts when inserted into the hollow profile and then expands again in the inserted final state.
  • the at least one elevation and the at least one depression on the surface facing the inside of the long side have serrations, which hook into the inside of the hollow profile, so that the insertion element is prevented from being pulled out.
  • the insertion element has at least one recess for receiving at least one reinforcing rib of a toeboard.
  • the recess preferably has the shape of a slot.
  • the plug-in element is preferably made of a thermoplastic.
  • suitable thermoplastics are polyethylene (PE), polypropylene (PP), PA, ASA, ABS, SAN, polybutylene terephthalate (PBT) and polyethylene terephthalate (PET). PET and PP are particularly preferred.
  • the plastic is preferably made partly or completely from recycled plastic.
  • the plastic insert element is reinforced with fibers, preferably with glass fibers, particularly preferably with recycled glass fibers.
  • the fastening element and the insertion element are made of the same plastic and are made in one piece.
  • the connecting piece with the fastening element and the plug-in element are preferably manufactured using an injection molding process. Other manufacturing processes are also possible, such as pressing or 3D printing.
  • toeboards according to the invention made of a curved hollow profile made of plastic, it is possible to achieve the desired To produce long-lasting, stable, visually appealing, lightweight, cost-effective and sustainable toeboards, which can be attached to scaffolding together with the connecting piece. Further advantages of the invention follow from the following description, in which the invention is explained in more detail using exemplary embodiments shown in the drawings.
  • Figure 1A shows a toeboard 1 for a framework made of a hollow profile 2 made of plastic with a first long side 3 and a second long side 4 and two narrow side edges 5. Both long sides are curved in the form of an arc and run parallel to one another.
  • the first long side 3 has a convex curvature towards the outside and is referred to as the outer long side 3.
  • the second long side 4 has a concave inward curvature and is referred to as the inner long side 4.
  • the first long side 3 has an inside 15, and the second long side 4 has an inside 16.
  • the two narrow side edges 5 of the toe board 1 have, perpendicular to the narrow side edges 5, two parallel flat surfaces 6, 7, which are the serve better stackability. Between the two long sides 3,4 there is one parallel to the two narrow side edges 5 Reinforcing rib 9 arranged, which connects the apex 23 of the first long side 3 with the apex 23 'of the second long side 4. This increases the bending stiffness and stability of the toe boards.
  • the hollow profile 2 is completely surrounded by a further plastic layer 8.
  • the hollow profile 2 is made from a recycled glycol-modified glass fiber reinforced PET (rPETG).
  • the further plastic layer 8 is made from recycled acrylonitrile-styrene-acrylate copolymers (ASA).
  • ASA acrylonitrile-styrene-acrylate copolymers
  • FIG 1B is that in Figure 1A Toe board 1 described shown in cross section from a hollow profile 2 made of plastic with a first long side 3 and a second long side 4, two narrow side edges 5, two parallel surfaces 6, 7 perpendicular to the narrow side edges, a further plastic layer 8, which envelops the hollow profile 2 , and a reinforcing rib 9, which connects the apex 23 of the first long side 3 with the apex 23' of the second long side 4.
  • Figure 1C are two sub-segments of the in Figure 1A described toeboards 1 shown in the stacked state, each consisting of a hollow profile 2 made of plastic with a first long side 3 and a second long side 4, two narrow side edges 5, two parallel surfaces 6, 7 perpendicular to the narrow side edges, a further plastic layer 8, which forms the hollow profile 2 envelops, and a reinforcing rib 9, which connects the apex 23 of the first long side 3 with the apex 23 'of the second long side 4.
  • the parallel surface 7 of the second long side 4 of the upper toe board 1 rests on the parallel surface 6 of the first long side 3 of the lower toe board 1.
  • the outside of the first long side 3 of the lower toe board 1 partially touches the outside of the second long side 4 of the upper toe board 1, which stands on the first toe board 1.
  • Figure 2A shows a sub-segment of the as in Figure 1A described toe board 1 for a framework made of a hollow profile 2 made of plastic with two curved long sides 3, 4, two narrow side edges 5, two parallel surfaces 6, 7 perpendicular to the narrow side edges, a further plastic layer 8, which envelops the hollow profile 2, and a reinforcing rib 9.
  • the toeboard described has the in Figure 2A
  • the hollow profile shown has 2 additional ribs with a free end 19.
  • Four further ribs with free ends 19 are arranged in the area or near the apex of the first outer long side 3 and two each near the narrow side edges 5 at the ends of the second inner long side 4.
  • the ribs with a free end 19 additionally increase the bending stiffness and stability of the toe board 1.
  • FIG 2B is that in Figure 2A Toe board 1 described shown in cross section from a hollow profile 2 made of plastic with a first long side 3 and a second long side 4, two narrow side edges 5, two parallel surfaces 6, 7 perpendicular to the narrow side edges, a further plastic layer 8, which envelops the hollow profile 2 , a reinforcing rib 9, which connects the vertices of the two long sides 3, 4, and additional ribs with free ends 19 near the vertex 23 of the first long side 3 and near the narrow side edges 5 at the ends of the second inner long side 4.
  • Figure 3A shows that as in Figure 1A described toeboard 1 for a framework made of a hollow profile 2 made of plastic with two curved long sides 3, 4, two narrow side edges 5, two parallel surfaces 6, 7 perpendicular to the narrow side edges, a further plastic layer 8, which envelops the hollow profile 2, and one Reinforcing rib 9.
  • the hollow profile 2 has two further reinforcing ribs 9 ', which connect the two long sides 3, 4 with each other and are arranged between the middle reinforcing rib 9 and the two narrow side edges 5. This creates four hollow chambers.
  • the Additional reinforcing ribs 9' additionally increase the flexural rigidity and stability of the toe board 1.
  • Figure 3B is that in Figure 3A Toe board 1 described shown in cross section from a hollow profile 2 made of plastic with a first long side 3 and a second long side 4, two narrow side edges 5, two parallel surfaces 6, 7 perpendicular to the narrow side edges, a further plastic layer 8, which envelops the hollow profile 2 , a central reinforcing rib 9, and two further reinforcing ribs 9', which connect the two long sides 3,4 with each other.
  • Figure 4A shows another toe board 1 for a framework made of a hollow profile 2 made of plastic with a first long side 3 and a second long side 4 and two narrow side edges 5.
  • Both long sides 3, 4 are angular and run parallel to each other.
  • the angle apexes 24, 24' of the two long sides 3, 4 are arranged offset from the middle of the long sides.
  • the two narrow side edges 5 of the toe board 1 each have two parallel flat surfaces 6, 7, perpendicular to the narrow side edges 5, which serve to improve stackability.
  • a reinforcing rib 9 is arranged parallel to the two narrow side edges 5, which connects the angle apex 24 of the first long side 3 and the angle apex 24 'of the second long side 4 with one another.
  • the hollow profile 2 has two further reinforcing ribs 9 ', which connect the two long sides 3, 4 with one another and are arranged between the central reinforcing rib 9 and the two narrow side edges 5. This creates four hollow chambers.
  • the hollow profile 2 is completely surrounded by a further plastic layer 8.
  • the hollow profile 2 is made from a recycled glycol-modified glass fiber reinforced PET (rPETG).
  • the further plastic layer 8 is made from recycled acrylonitrile-styrene-acrylate copolymers (ASA).
  • ASA acrylonitrile-styrene-acrylate copolymers
  • FIG 4B is that in Figure 4A Toe board 1 described shown in cross section from a hollow profile 2 made of plastic with a first angular long side 3 and a second angular long side 4, two narrow side edges 5, two parallel surfaces 6, 7 perpendicular to the narrow side edges, a further plastic layer 8, which forms the hollow profile 2, a central reinforcing rib 9, and two further reinforcing ribs 9', which connect the two long sides 3,4 with each other.
  • FIG. 5A a connecting piece 10 made of plastic is shown for attaching a toe board with curved long sides to a scaffold.
  • the connecting piece 10 has a fastening element 11 and an insertion element 12 for insertion into a toe board.
  • the fastening element 11 consists of a plate 25 with several openings 21 for receiving rivets, screws and other fasteners.
  • scaffolding fittings (not shown), preferably metal fittings, can be fastened to the fastening element 11.
  • the scaffold fittings are used to mount a toe board on a scaffold.
  • the fastening element 11 has a plurality of side walls 26 and a curved stop element 27, which serves as a stop and cover when the plug-in element 12 is inserted into a toe board.
  • the fastening element 11 has two recesses 31 on the left and right underside, which serve as a water drain.
  • the insertion element 12 is complementary to a hollow profile with curved long sides (as in Figures 1A and 1B shown).
  • the insertion element 12 has two elevations 13, which extend on both sides from the center of the insertion element 12 in cross section and each merge into a center rib 28 pointing towards the center of the insertion element 12, which run perpendicular to the elevations 13.
  • the insertion element 12 has a recess 18 between the two center ribs 28 in the middle of the insertion element 12 for receiving at least one reinforcing rib of a toeboard (in Figures 1A and 1B shown).
  • the recess 18 has the shape of a slot.
  • the insertion element 12 additionally has two recesses 14, each of which has a connecting rib 29 with the two elevations 13 are connected.
  • the depressions 14 open into two side ribs 22, which run on the side edges of the insert element 12 in a parallel orientation to the central ribs 28.
  • Such insertion elements 12 have a double-S shape in cross section, with the two Ss mirroring each other between the two central ribs 28.
  • the alternately arranged elevations 13 and depressions 14 can be moved relative to one another and function according to the harmonica principle.
  • the individual elements of the insert element 12 contract and expand again in the inserted final state.
  • the two elevations 13 are in contact and clamped with the inside of the first long side of a hollow profile of a toe board (not shown) and the two recesses 14 are in contact with the inside of the second long side of a hollow profile of a toe board (not shown).
  • the elevations 13, depressions 14 and side ribs 22 have prongs 17 on the side that comes into contact with the inside of a hollow profile of a toe board, which hook into the inside of a hollow profile when inserted into a toe board, so that the insertion element is prevented from being pulled out.
  • the connecting piece 10 with the fastening element 11 and the insertion element 12 is made from a recycled thermoplastic, preferably from PET reinforced with glass fibers, preferably via injection molding.
  • the fastening element 11 and the insertion element 12 are manufactured in one piece.
  • FIG 5B is that in Figure 5A
  • the connecting piece 10 described is shown in a front view from the front of the plug-in element 12.
  • the double-S shape of the plug-in element 12 is shown with the slot-shaped recess between the double-S shapes, each with a central rib 28, an elevation 13, a connecting rib 29, a recess 14 and a side rib 22. Also shown are the side walls 26 and that curved stop element 27 of the fastening element 11.
  • the fastening element 11 has two recesses 31 on the left and right underside, which serve as a water drain.
  • Figure 5C shows that in Figure 5A
  • the connecting piece 10 described in a perspective view from obliquely below onto the underside of the connecting piece 10 with the fastening element 11 and the insertion element 12.
  • the prongs 17 are visible on the underside of the recesses 14 and on the outside of the side ribs 22, which are visible when inserted hook a toeboard onto the inside of a hollow profile.
  • the reinforcing struts 30 are visible on the underside of the plate 25 of the fastening element 11, which connect the openings 21 to one another and to the side walls 26 and reinforce the fastening element 11.
  • FIG 6A is a further connecting piece 10 made of plastic for attaching a toe board with curved long sides to a framework, shown with a further fastening element 11 and an insert element 12.
  • the insert element 12 has the same element as in Figure 5A described on each with two elevations 13 and depressions 14, connecting ribs 29 and side ribs 22, arranged in a double S shape.
  • the fastening element 11 consists of a plate 25 with two openings 21 for receiving rivets, screws and other fasteners, which can be mounted directly on a scaffold. With this fastening element 11, no additional scaffolding fittings are necessary.
  • the fastening means 11 also has side walls 26, a stop element 27 as in Figure 5A described and reinforcement struts 30. The reinforcing struts 30 serve to strengthen the connection between the stop element 27 and the plate 25, making the additional scaffolding coverings unnecessary.
  • FIG 6B is that in Figure 6A
  • the connecting piece 10 described is shown in a front view from the front of the plug-in element 12.
  • the double-S shape of the plug-in element 12 is shown with the slot-shaped recess between the double-S shapes, each with a central rib 28, an elevation 13, a connecting rib 29, a recess 14 and a side rib 22. Also shown are the side walls 26, the plate 25 and the curved stop element 27 of the fastening element 11.
  • the fastening element 11 has two recesses 31 on the left and right underside, which serve as a water drain.
  • Figure 6C shows that in Figure 6A
  • the connecting piece 10 described in a perspective view from obliquely below onto the underside of the connecting piece 10 with the fastening element 11 and the insertion element 12.
  • the prongs 17 are visible on the underside of the recesses 14 and on the outside of the side ribs 22, which are visible when inserted hook a toeboard onto the inside of a hollow profile.
  • the fastening means 11 has additional reinforcing struts 30 on the underside of the connection between the stop element 27 and the plate 25, which serve to reinforce the connection between the stop element 27 and the plate 25.
  • FIG 7A are those in Figure 6A shown connecting piece 10 made of plastic with the fastening element 11 and the plug-in element 12 as well as the in Figure 1A Shown toeboard 1 made of a hollow profile 2 made of plastic with a first curved long side 3 and a second curved long side 4 and a central reinforcing rib 9 shown.
  • the connecting piece 10 and the toe board 1 are shown in the position shortly before the insertion element 12 is inserted into the hollow profile 2 of the toe board 1.
  • FIG 7B are those in Figure 6A illustrated connecting piece 10 made of plastic with the fastening element 11 and the plug-in element 12 as well as the in Figure 1A
  • Toeboard 1 shown is made of a hollow profile 2 made of plastic with a first curved long side 3 and a second curved long side 4 and a central reinforcing rib 9.
  • the connecting piece 10 and the toe board 1 are shown in the half-inserted position of the insertion element 12 into the hollow profile 2 of the toe board 1.
  • FIGS. 1-7 show a possible embodiment of the invention. Further embodiments are also conceivable within the meaning of the invention, for example a different shape of the long sides or other shapes of the reinforcing ribs.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Laminated Bodies (AREA)
  • Panels For Use In Building Construction (AREA)

Claims (18)

  1. Plinthe (1) pour échafaudage, la plinthe étant composée d'un profil creux (2) en matière plastique et le profil creux (2) présentant en section transversale une première face longitudinale (3) et une seconde face longitudinale (4) et deux bords latéraux étroits (5), caractérisée en ce qu'au moins un des faces longitudinales (3, 4) du profil creux (2) a une conformation bombée en section transversale.
  2. Plinthe (1) selon la revendication 1, caractérisée en ce qu'au moins un des faces longitudinales (3, 4) du profil creux a une conformation bombée vers l'extérieur en section transversale.
  3. Plinthe (1) selon la revendication 1 ou 2, caractérisée en ce que la première face longitudinale (3) et la seconde face longitudinale (4) ont une conformation bombée en section transversale.
  4. Plinthe (1) selon la revendication 3, caractérisée en ce que la première face longitudinale (3) et la seconde face longitudinale (4) du profil creux s'étendent parallèlement l'un à l'autre.
  5. Plinthe (1) selon une des revendications précédentes, caractérisée en ce que les bords latéraux (5) de la plinthe présentent deux surfaces planes parallèles l'une à l'autre (6, 7).
  6. Plinthe (1) selon une des revendications précédentes, caractérisée en ce que la matière plastique est thermoplastique, de préférence du PET modifié au glycol.
  7. Plinthe (1) selon une des revendications précédentes, caractérisée en ce que la matière plastique est fabriquée à partir de plastique recyclé.
  8. Plinthe (1) selon une des revendications précédentes, caractérisée en ce que la matière plastique est renforcée avec des fibres, de préférence des fibres de verre.
  9. Plinthe (1) selon une des revendications précédentes, caractérisée en ce que le profil creux (2) présente entre les deux faces longitudinales (3, 4) au moins une nervure de renfort (9).
  10. Plinthe (1) selon une des revendications précédentes, caractérisée en ce que le profil creux (2) présente sur sa face extérieure, au moins partiellement, une autre couche de matière plastique (8).
  11. Plinthe (1) selon la revendication 10, caractérisée en ce que l'autre couche de matière plastique (8) est composée de matière plastique thermoplastique.
  12. Plinthe (1) selon une des revendications précédentes, caractérisée en ce que la plinthe (1) présente sur ses faces avant chaque fois un élément de connexion (20) pour fixation à un échafaudage, l'élément de connexion (20) étant fabriqué en une pièce avec la plinthe.
  13. Plinthe (1) selon une des revendications 1 à 11, caractérisée en ce que la plinthe (1) présente en outre une pièce de connexion (10) en matière plastique pour fixer la plinthe (1) à un échafaudage, la pièce de connexion (10) présentant un élément de fixation (11) pour fixer la plinthe à un échafaudage et un élément d'insertion (12) à insérer dans la plinthe, l'élément d'insertion (12) ayant une conformation complémentaire au profil creux (2) de la plinthe (1).
  14. Plinthe (1) selon la revendication 13, caractérisée en ce que l'élément d'insertion (12) présente au moins une proéminence (13) et au moins un creux (14), sachant que, à l'état inséré, la proéminence (13) est serrée avec la face intérieure (15) de la première face longitudinale (3) du profil creux (2) et le creux (14) avec la face intérieure (16) de la seconde face longitudinale (4) du profil creux (2).
  15. Plinthe (1) selon la revendication 14, caractérisée en ce que l'au moins une proéminence (13) et l'au moins un creux (14) présentent des dents respectivement sur la face intérieure de la surface tournée vers les faces longitudinales (17).
  16. Plinthe (1) selon la revendication 14 ou 15, caractérisée en ce que l'élément d'insertion (12) présente plusieurs proéminences (13) et plusieurs creux (14) qui sont disposés en alternance et sont mobiles les uns par rapport aux autres.
  17. Plinthe (1) selon une des revendications 13 à 16, caractérisée en ce que l'élément d'insertion (12) est fabriqué à partir de matière plastique thermoplastique.
  18. Plinthe (1) selon une des revendications 13 à 17, caractérisée en ce que l'élément de fixation (11) et l'élément d'insertion (12) sont fabriqués en une pièce.
EP22155864.6A 2021-02-19 2022-02-09 Plinthe en matière plastique Active EP4047156B8 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH00164/21A CH718363A1 (de) 2021-02-19 2021-02-19 Bordbrett und Verbindungsstück aus Kunststoff.

Publications (4)

Publication Number Publication Date
EP4047156A1 EP4047156A1 (fr) 2022-08-24
EP4047156B1 true EP4047156B1 (fr) 2023-11-15
EP4047156C0 EP4047156C0 (fr) 2023-11-15
EP4047156B8 EP4047156B8 (fr) 2023-12-27

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EP22155864.6A Active EP4047156B8 (fr) 2021-02-19 2022-02-09 Plinthe en matière plastique

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EP (1) EP4047156B8 (fr)
CH (1) CH718363A1 (fr)
PL (1) PL4047156T3 (fr)

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE920031C (de) * 1936-09-19 1954-11-11 Kurt Prange Dr Gewoelbte, allseitig geschlossene Hohlbauplatte mit Innenversteifungen
DE1960069U (de) 1967-03-03 1967-05-11 Eberhard Layher Bordbrett fuer metallgerueste.
US4496029A (en) * 1983-03-30 1985-01-29 Shigeharu Kuroda Scaffold plank
DE3434362A1 (de) 1984-09-19 1986-03-20 Dieter 1000 Berlin Hutzenlaub Hohlkammerbelegbohle aus kunststoff
DE3703935A1 (de) * 1986-11-21 1988-06-01 Stefan Biffar Geruestbrett und verfahren zu dessen herstellung
DE3813513A1 (de) 1988-04-22 1989-11-02 Langer Ruth Geb Layher Bordbrettausbildung fuer gerueste
DE4318070C2 (de) * 1993-06-01 1995-10-19 Buna Gmbh Gerüstbohle aus Kunststoff
JP2816537B2 (ja) * 1995-03-27 1998-10-27 昭和アルミニウム株式会社 梯子用横桟
GB2346921A (en) 1999-02-16 2000-08-23 David Lock Polymeric scaffold board
US6431316B1 (en) 1999-07-13 2002-08-13 Timothy Benson Bothwell Scaffold plank and method of making the same
US7090053B2 (en) * 1999-07-13 2006-08-15 Bothwell Enterprises, Inc. Scaffold plank with end connector and method of making the same
JP2003082847A (ja) * 2001-09-04 2003-03-19 Kantetsu:Kk 折畳み式作業台
EP1950360A1 (fr) 2007-01-23 2008-07-30 Wilhelm Layher Verwaltungs-GmbH Plinthe pour un échafaudage et son procédé de fabrication
DE102008023525A1 (de) 2008-04-22 2009-12-17 Uti Holding + Management Ag Leichter Universal-Gerüstboden aus Aluminium und Kunststoff im Baukasten-System und Verfahren zur Herstellung des Gerüstbodens
JP5379668B2 (ja) * 2009-12-18 2013-12-25 辰雄 小野 足場装置
DE102012216681A1 (de) * 2012-09-18 2014-03-20 Polytech Gmbh Längliches sicherungselement für ein gerüst sowie gerüst damit
CA2903885C (fr) * 2013-03-07 2020-10-27 Moddex Group Pty Ltd Systeme barriere modulaire
EP2907410A1 (fr) * 2014-02-14 2015-08-19 Syma Intercontinental AG Élément de construction, en particulier un profil pour la connexion de partie des éléments à angles
CN205444874U (zh) * 2016-03-21 2016-08-10 孙琪 一种脚手架踏板
CN110892124A (zh) * 2017-07-14 2020-03-17 沙特基础工业全球技术有限公司 纤维增强的细长压型物体
FR3077592B1 (fr) * 2018-02-02 2020-02-21 Cdh Group Plinthe pour echafaudage
KR101979700B1 (ko) * 2018-10-02 2019-05-17 (주)동은에프앤씨 토보드시스템

Also Published As

Publication number Publication date
CH718363A1 (de) 2022-08-31
PL4047156T3 (pl) 2024-04-02
EP4047156B8 (fr) 2023-12-27
EP4047156C0 (fr) 2023-11-15
EP4047156A1 (fr) 2022-08-24

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