EP4134504A1 - Schalungsplatte mit einem dichtungselement - Google Patents

Schalungsplatte mit einem dichtungselement Download PDF

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Publication number
EP4134504A1
EP4134504A1 EP22189457.9A EP22189457A EP4134504A1 EP 4134504 A1 EP4134504 A1 EP 4134504A1 EP 22189457 A EP22189457 A EP 22189457A EP 4134504 A1 EP4134504 A1 EP 4134504A1
Authority
EP
European Patent Office
Prior art keywords
formwork
zone
sealing member
formwork panel
negative
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.)
Granted
Application number
EP22189457.9A
Other languages
English (en)
French (fr)
Other versions
EP4134504C0 (de
EP4134504B1 (de
Inventor
Frédéric ALLIRAND
Guerric BECQUART
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.)
Leviat
Original Assignee
Plaka Group France SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Plaka Group France SAS filed Critical Plaka Group France SAS
Publication of EP4134504A1 publication Critical patent/EP4134504A1/de
Application granted granted Critical
Publication of EP4134504C0 publication Critical patent/EP4134504C0/de
Publication of EP4134504B1 publication Critical patent/EP4134504B1/de
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
    • E04G17/00—Connecting or other auxiliary members for forms, falsework structures, or shutterings
    • E04G17/004—Strips for creating a chamfered edge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B7/00—Moulds; Cores; Mandrels
    • B28B7/0002—Auxiliary parts or elements of the mould
    • B28B7/0011—Mould seals
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B7/00—Moulds; Cores; Mandrels
    • B28B7/0064—Moulds characterised by special surfaces for producing a desired surface of a moulded article, e.g. profiled or polished moulding surfaces
    • B28B7/0085—Moulds characterised by special surfaces for producing a desired surface of a moulded article, e.g. profiled or polished moulding surfaces with surfaces for moulding chamfers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B7/00—Moulds; Cores; Mandrels
    • B28B7/20—Moulds for making shaped articles with undercut recesses, e.g. dovetails

Definitions

  • the present invention relates to a formwork panel for a formwork intended in particular for the manufacture of a construction element by pouring a hydraulic filling material into said formwork, said formwork panel comprising at least one formwork face and a support separated from said formwork face by an angle between 0° and 180°, extreme values being excluded, said formwork panel comprising in said support face at least one housing for receiving at least said sealing member of an elongated profile comprising an assembly zone arranged to be housed in a housing, and a joint zone arranged to deform elastically and ensure contact sealing at the level of a joint plane between said formwork panel and a another adjacent formwork panel, said sealing member further comprising a negative formwork zone integrated into said elongated profile, disposed substantially in the extension of said joint zone, and t arranged to create an imprint in said molded construction element.
  • the aim is to break the angles to avoid sharp edges. This is particularly the case for angles at the ends or ends of walls or slabs, angles for posts or beams, stair nosings, etc.
  • One of the solutions consists in using permanent formwork made of cardboard, polystyrene, or the like, the interior surface of which comprises formwork negatives. These lost formwork are mainly used for the manufacture of posts with chamfered corners.
  • Another solution consists in using negative formwork profiles, which can be made of cardboard, PVC, polyurethane, steel or the like, and which are added to the formwork.
  • These negative formwork profiles generally include a wing which must be fixed at the junction between two formwork panels, by nailing, riveting, gluing or the like, before closing the formwork.
  • the publication WO 2005/116365 A1 proposes a side formwork panel for molding bench, provided at its ends with a cover insert and a base insert, both removable and configured to create in the upper and lower edges of the molded concrete panel, chamfers or any other negative fingerprints.
  • the present invention aims to overcome these drawbacks by proposing a solution for a versatile sealing member, that is to say one that can both provide a sealing function alone, or a combined sealing and impression function. making it possible to treat the angles of any type of molded construction element and/or to create negative shapes in said molded element, which is simple, economical, easy to implement, recoverable and reusable, which can be 100% recycled at the end of its life if necessary, thus entering into an eco-responsible approach.
  • the invention relates to a formwork panel of the kind indicated in the preamble, characterized in that it comprises in said bearing face a cavity adjacent to said housing, and in that said sealing member is reversible and can adopt two mounting positions, including a first mounting position in which said negative formwork zone is intended to be retracted inside said support face of the formwork panel in said cavity and has no effect on said molded construction element, and a second mounting position in which said negative formwork zone protrudes outside of said formwork face of the formwork panel and creates said imprint in said molded construction element.
  • the housing of said formwork panel is symmetrical with respect to a median plane
  • the mounting zone of said sealing member is symmetrical with respect to a median plane corresponding to the median plane of said housing, so as to be able to mount said sealing member in said housing in one or the other of said two mounting positions separated from each other by an angle of 180°.
  • the housing of said formwork panel is advantageously delimited by two parallel walls, the thickness of each of said walls being at most equal to an interval separating the assembly zone and the negative formwork zone of said sealing member.
  • the negative formwork zone of said sealing member may have a section chosen from the group comprising a triangle with a flat base, a triangle with a curved base, a square, a rectangle, a trapezium, a quarter round, without these shapes be limiting.
  • the seal zone and the negative formwork zone of said sealing member comprise a common face arranged to deform elastically and ensure contact sealing at the level of said joint plane between said formwork panel and another adjacent formwork panel.
  • said common face is mostly planar and may end with a curved end zone in the direction of said joint plane.
  • the negative formwork zone of said sealing member may be symmetrical with respect to a plane of symmetry passing through said joint zone and arranged to create two symmetrical indentations or a groove in said molded construction element.
  • Said sealing member according to the invention can be made of a thermoplastic elastomer material having properties of resistance to external aging and of resistance to said hydraulic filler material and formwork oils.
  • the object of the invention is also achieved by the use of the formwork panel defined above to manufacture a construction element chosen from the group comprising a wall, a floor slab, a post, a beam, a staircase, said construction element whether or not comprising an indentation in at least one of its corners and/or in at least one of its faces.
  • the sealing member 10 consists of an elongated profile arranged to be mounted on or in a formwork panel 1, preferably along at least one of the edges of the formwork panel 1, 2 , as illustrated in the figure 2 , 3 And 4 . It comprises for this purpose a mounting zone 15 arranged to be received in a housing 3 provided in the formwork panel 1.
  • the mounting zone 15 of the sealing member 10 and the corresponding housing 3 provided in the panel of sealing 1 have complementary shapes to be able to fit one inside the other. In addition, these shapes are symmetrical with respect to a median plane P, P' in order to be able to assemble the sealing member 10 to the mounting panel 1 both in one direction and in the other direction.
  • the assembly zone 15 comprises a central part 16 delimited by a quadrilateral, extended by a T-shaped end part 17, delimiting two grooves 18 substantially in opposition.
  • the mounting zone 15 of the sealing member 10 can have any other shape, the main thing being that it is adapted to that of the housing 3 provided in the formwork panel 1.
  • the sealing member 10 also includes a joint zone 19 arranged to deform elastically and provide contact sealing at a joint plane J between the formwork panel 1 and another adjacent formwork panel (not shown ).
  • This joint zone 19 extends the assembly zone 15 by a lip 20 positioned outside the formwork panel 1.
  • the joint zone 19 extends perpendicularly to the median plane P of the assembly zone. 15 and parallel to the joint plane J, the lip 20 projecting on either side of the assembly zone 15.
  • the sealing member 10 is characterized in that it further comprises a negative formwork zone 21 integrated into said elongated profile, and arranged to create an imprint in a molded construction element (not shown), such that including a cut angle.
  • this negative formwork zone 21 is an integral part of the formwork panel 1, since it includes said sealing member 10, without the need to add or report in said formwork a chamfer or any other negative formwork profile.
  • the negative formwork zone 21 is arranged substantially in the extension of the joint zone 19 and connected to it by the lip 20. It is also arranged adjacent to the assembly zone 15 and extends substantially parallel to it by means of a interval I. It presents with reference to the figure 1 a substantially triangular section with a flat base.
  • This section more particularly corresponds to a right-angled isosceles triangle to create a flat-faced 45° chamfer in the corner of the molded construction element.
  • the negative formwork zone 21 can of course have any other shape or section depending on the imprint to be made in the molded construction element. Certain variant embodiments are illustrated by way of example in the figures 5 to 8 , which will be detailed later.
  • the joint zone 19 and the negative formwork zone 21 comprise a common face 22 arranged to deform elastically and ensure contact sealing at the joint plane J between two adjacent formwork panels.
  • the common face 22 is mostly flat and smooth. It may end with an end zone 23 curved in the direction of the joint plane J. When the formwork is closed, this curved end zone 23 is compressed, retracts and aligns itself in the joint plane J. It promotes the pressing of the negative formwork zone 21 against the adjacent formwork panel, and thus allows the production of a clear and qualitative imprint in the molded construction element.
  • FIG. 2 And 3 illustrate an example of a formwork panel 1 equipped with the sealing member 10 of the invention.
  • This formwork panel 1 consists of a metal profile comprising a formwork face FC and two opposite bearing faces FA, at least one of which is intended to come into contact with another adjacent formwork panel via the zone of seal 19 of the sealing member 10.
  • the formwork face FC is separated from each bearing face FA by a right angle.
  • This example is of course not limiting given that the formwork face FC and at the at least one of the bearing faces FA can be separated by an angle between 0° and 180°, extreme values being excluded, depending on the construction element to be manufactured.
  • the formwork panel 1 as shown corresponds to a wall or wall end formwork panel, used in a vertical direction, and intended to be held between two formwork panels by magnets (not shown) or any other adequate fixing device.
  • the invention is of course not limited to this type of formwork panel, but extends to any other form of formwork panel, suitable for the construction element to be manufactured, such as, for example, a formwork panel for beams or slabs, used in a horizontal direction, in the factory or on site.
  • the formwork panel 1 of the invention comprises in at least one of its bearing faces FA the housing 3 to receive the mounting zone 15 of a sealing member 10 according to the invention. It also comprises a cavity 4 adjacent to housing 3 and separated from said housing 3 by a wall 5 belonging to the profile. The cavity 4 makes it possible to receive the negative formwork zone 21 of the sealing member 10 when it is not in use.
  • the housing 3 provided in the formwork panel 1 is delimited by two parallel walls 5 belonging to the section.
  • the thickness of the wall 5 is at most equal to the interval I separating the assembly zone 15 and the negative formwork zone 21 from the sealing member 10.
  • the housing 3 has a shape complementary to that of the mounting zone 15 of the sealing member 10 as mentioned above. It also has a symmetry with respect to a median plane P′ so as to be able to mount the sealing member 10 in the housing 3 in one or the other of the two mounting positions separated from each other by a 180° angle.
  • the housing 3 comprises for this purpose an entry zone 6 delimited by a quadrilateral to accommodate the central part 16 of the assembly zone 15, followed by a bottom zone 7 separated from the entry zone 6 by two ribs 8 in opposition to accommodate the T-shaped end part 17 of the mounting zone 15.
  • the housing 3 can have any other shape, the main thing being that it is complementary to that of the mounting zone 15 of the sealing member 10.
  • the cavity 4 provided in the formwork panel 1 has an opening and a sufficient depth to accommodate the negative formwork zone 21 therein without constraining it, and this regardless of the shape of the zone negative formwork 21, 24, 25, 26 and 27, in accordance with the non-limiting examples illustrated in the figures 1 to 4 , 5 , 6 , 7 and 8 .
  • the sealing member 10 is assembled to the formwork panel 1 preferably by a drawer-type sliding connection, the ribs 8 of the housing 3 forming with the grooves 18 of the mounting zone 15 of the slides.
  • This sliding connection makes it possible to assemble the sealing member 10 to the formwork panel 1 by a movement of longitudinal translation from one end to the other of the formwork panel 1.
  • the sealing member 10 is therefore mounted and easily disassembled so as to be able to modify its mounting position depending on whether or not it is desired to create an indentation or a broken angle in a molded construction element.
  • the sealing member 10 thus combines two functions due to its reversibility: a sealing function alone in the first mounting position, and a sealing and impression function in the second mounting position.
  • FIG 4 illustrates another formwork panel 2 for producing, for example, a post (not shown), this formwork panel 2 being able to be obtained by juxtaposition of two formwork panels 1.
  • Four identical formwork panels 2 can be used, assembled in a square to delimit the section of the post to be manufactured.
  • This formwork panel 2 has a greater longitudinal dimension than the formwork panel 1 of the figure 2 And 3 . It is equipped with two opposing sealing members 10 and mounted in the housings 3 provided for this purpose. They are mounted in the second mounting position making it possible to project the negative formwork zones 21 to create a chamfer in each corner of the post.
  • each sealing member 10 can be easily dismantled, turned 180° and reassembled in the first position of assembly allowing the negative formwork zone 21 to be retracted into the cavity 4 provided for this purpose.
  • the negative formwork zone 21 of the sealing member 10 can have different shapes and sections.
  • the sealing member 11 comprises a negative formwork zone 24 having a substantially triangular section with a curved base, to create a 45° chamfer with a convex face in the corner of the molded construction element.
  • the sealing member 12 comprises a negative formwork zone 25 having a substantially square or rectangular section, to create a square or rectangular recess in the corner of the molded construction element.
  • the sealing member 13 comprises a negative formwork zone 26 having a substantially trapezoidal section, to create a trapezoidal recess in the corner of the molded construction element.
  • the sealing member 14 comprises a negative formwork zone 27 symmetrical with respect to a plane of symmetry passing through the joint zone 19.
  • This sealing member 14 makes it possible to produce a negative between two juxtaposed formwork panels 1, like the example shown in figure 4 , forming a groove on the formwork face FC to create a groove in the molded construction element.
  • the hardness and density of the sealing member 10 to 14 give it sufficient rigidity to be able to be slid into the housing 3 of the formwork panel 1, 2 and to produce a sliding drawer connection allowing it to be easily reversible.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
EP22189457.9A 2021-08-13 2022-08-09 Schalungsplatte mit einem dichtungselement Active EP4134504B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR2108687A FR3126133B1 (fr) 2021-08-13 2021-08-13 Organe d’étanchéité pour coffrage et panneau de coffrage équipé d’un tel organe d’étanchéité

Publications (3)

Publication Number Publication Date
EP4134504A1 true EP4134504A1 (de) 2023-02-15
EP4134504C0 EP4134504C0 (de) 2024-03-13
EP4134504B1 EP4134504B1 (de) 2024-03-13

Family

ID=77913277

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22189457.9A Active EP4134504B1 (de) 2021-08-13 2022-08-09 Schalungsplatte mit einem dichtungselement

Country Status (2)

Country Link
EP (1) EP4134504B1 (de)
FR (1) FR3126133B1 (de)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7310403U (de) 1973-03-20 1973-07-19 Mannesmann Leichtbau Gmbh Fasenleiste
DE202004009596U1 (de) 2004-06-17 2004-09-09 Norz, Dieter Dichtungs-Vorrichtung
WO2005116365A1 (en) 2004-05-24 2005-12-08 Srb Construction Technologies Concrete sideform system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7310403U (de) 1973-03-20 1973-07-19 Mannesmann Leichtbau Gmbh Fasenleiste
WO2005116365A1 (en) 2004-05-24 2005-12-08 Srb Construction Technologies Concrete sideform system
DE202004009596U1 (de) 2004-06-17 2004-09-09 Norz, Dieter Dichtungs-Vorrichtung

Also Published As

Publication number Publication date
EP4134504C0 (de) 2024-03-13
EP4134504B1 (de) 2024-03-13
FR3126133B1 (fr) 2023-12-22
FR3126133A1 (fr) 2023-02-17

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