EP3910127B1 - Production process of a sealing device for building, comprising a conduit and a connecting member - Google Patents

Production process of a sealing device for building, comprising a conduit and a connecting member Download PDF

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Publication number
EP3910127B1
EP3910127B1 EP21183892.5A EP21183892A EP3910127B1 EP 3910127 B1 EP3910127 B1 EP 3910127B1 EP 21183892 A EP21183892 A EP 21183892A EP 3910127 B1 EP3910127 B1 EP 3910127B1
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EP
European Patent Office
Prior art keywords
annular
axial
duct
mounting
annular portion
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EP21183892.5A
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German (de)
French (fr)
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EP3910127A1 (en
Inventor
Gérard Iftissen
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Rikksen
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Rikksen
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
    • E04D13/04—Roof drainage; Drainage fittings in flat roofs, balconies or the like
    • E04D13/0404—Drainage on the roof surface
    • E04D13/0409—Drainage outlets, e.g. gullies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D19/00—Flanging or other edge treatment, e.g. of tubes
    • B21D19/16—Reverse flanging of tube ends
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
    • B21D39/04—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of tubes with tubes; of tubes with rods
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
    • E04D13/14—Junctions of roof sheathings to chimneys or other parts extending above the roof
    • E04D13/1407—Junctions of roof sheathings to chimneys or other parts extending above the roof for flat roofs
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
    • E04D13/04—Roof drainage; Drainage fittings in flat roofs, balconies or the like
    • E04D13/0404—Drainage on the roof surface
    • E04D13/0409—Drainage outlets, e.g. gullies
    • E04D2013/0436—Drainage outlets, e.g. gullies with sealing means

Definitions

  • the present invention relates to a method for the manufacture of a sealing device for the building, in particular for a roof.
  • the roofs of buildings in particular the flat slabs of roofs, have through passages which are provided for the flow of rainwater or the passage of chimneys.
  • the drains or chimneys must be connected in a watertight manner to the seals provided on the slabs.
  • the patent EP 1 710 365 describes a sealing device which comprises a duct provided at one end with a radial flexible membrane.
  • the membrane has an axial annular portion taken between an end portion of the duct and an attached inner mounting ring.
  • the inner ring and an attached outer ring are provided with flanges between which a radial annular zone of the membrane is taken.
  • the patent WO 2012/045372 describes a sealing device which comprises a main duct, a secondary duct whose lower end portion is telescopically engaged in an upper portion of the main duct and a membrane for mounting on a roof, which comprises a plate and an axial mounting part placed between the end portions of the main duct and of the secondary duct.
  • the end portions of the main duct and of the secondary duct and the axial mounting part are deformed radially so as to form axially spaced beads, engaged one in the other.
  • the document US 2016/038988 describes a sealing device comprising a duct and a connecting member integral with this duct, in which the duct forms an axial annular mounting slot inside which an axial part of the connecting member is mounted and locked.
  • a sealing device for the building which comprises a conduit and a connecting member integral with this conduit.
  • the duct comprises a main axial portion, an intermediate annular portion facing an end annular part of the main axial portion, an end annular portion facing the intermediate annular portion, the intermediate annular part and the terminal annular portion being located radially one inside the other and connected by an annular fold so as to form an axial annular mounting slot open axially opposite this annular fold and the other end of the main axial portion, the intermediate annular portion extending between said annular end portion of the main axial portion and the terminal annular portion.
  • the connecting member comprises a radial plate and, around a through opening, an axial annular mounting portion, the radial plate and the axial annular mounting portion being connected by an annular fold.
  • the axial annular mounting portion of the connecting member is engaged axially and radially engaged or clamped, over at least one annular zone, in said annular mounting slot between the intermediate annular portion and the end annular portion of the duct.
  • Said main axial portion, said intermediate annular portion of the conduit, said axial annular portion for mounting the connecting member and said terminal axial portion of the conduit may have annular beads engaged in one another.
  • Said intermediate annular portion may be located inside said end annular portion and said terminal annular portion may be located inside said intermediate annular portion.
  • Said intermediate annular portion may be located outside of said end annular portion and said portion annular terminal can be located outside of said intermediate annular portion.
  • Said terminal annular portion may be provided with an annular collar extending outwardly opposite the connecting member.
  • Said intermediate portion can be connected to said main axial portion by an annular fold.
  • Said duct may be in one piece.
  • Said duct may comprise two assembled parts, one of which comprises said terminal annular portion, said intermediate annular portion and said annular end part of said main axial portion and the other of which comprises the other annular end part of said main axial portion; the edges of said annular end portions of said main axial portion being coupled.
  • annular end portions of said main axial portion can be connected by an annular weld bead.
  • Said duct may comprise two assembled parts, a first part of which comprises said end annular portion and said intermediate annular portion connected by said annular fold and a second part of which comprises said main axial portion.
  • Said first part of the conduit may comprise a complementary annular portion connected to said intermediate annular portion by an annular fold, said intermediate annular portion and said complementary annular portion forming an annular mounting slot in which said annular end part of said main axial portion is engaged and caught between said intermediate annular portion and said complementary annular portion.
  • Said conduit may be metallic and said connecting member may be made of a bituminous or metallic material.
  • a sealing device which comprises a conduit and a connecting member comprising a radial plate and an axial annular mounting portion, which according to the invention comprises the features of claim 1.
  • the method comprises: a step of bending an annular end portion of said duct, to obtain an axial annular assembly slot open axially outwards, between an intermediate annular portion connected to a main axial portion by a first annular ply and an end annular portion connected to the intermediate annular portion by a second annular ply; a step of axial engagement of an axial annular mounting portion of the connecting member in said annular mounting slot; and a step of radially compressing said axial annular mounting portion of the connecting member, over at least one annular zone, between said intermediate annular portion and said terminal annular portion of the duct.
  • the radial compression step may comprise a deformation of said main axial portion, of said intermediate annular portion, of said axial annular assembly portion and of the end annular portion, to obtain annular beads engaged in one another.
  • the method may comprise a heating step during the compression step, to obtain a bonding of said axial annular assembly portion against said intermediate annular portion and of the terminal annular portion.
  • the method may include a step of at least partially heating the conduit during the bending step.
  • a sealing device comprising a conduit and a connecting member comprising a radial plate and an axial annular mounting portion, which according to the invention comprises the characteristics of claim 4.
  • This process includes: a step of producing a preform comprising at least one intermediate annular portion and one terminal annular portion, connected by an annular fold and forming between them an annular mounting slot; a step of mounting said preform on a part annular end of said conduit, in a position such that said intermediate annular portion is located between said annular end portion of said conduit and said end annular portion, and for mounting said axial annular portion for mounting said connecting member in said slot mounting ring; and a step of radially compressing, over at least one annular zone, said axial annular portion for mounting the connecting member, said intermediate annular portion, said terminal annular portion of the duct and said annular end portion of said conduit so as to ensure assembly and obtain a sealed connection between the conduit and the connecting member.
  • the step of producing a preform may comprise the production of a complementary annular portion connected to said intermediate annular portion, delimiting between them an annular mounting slot, the mounting step may comprise the mounting of said annular part of end of said duct in this annular mounting slot and the radial compression step may comprise the compression of said complementary annular portion.
  • a sealing device 1, illustrated in the figure 1 comprises a cylindrical duct 2 which successively has a main axial portion 3, an intermediate annular portion 4 and a terminal annular portion 5, the intermediate annular portion 4 extending between the main axial portion 3 and the terminal annular portion 5.
  • the intermediate annular portion 4 faces an annular end portion 6 of the main axial portion 3 and is radially inside or surrounds the latter.
  • the main axial portion 3 and the intermediate annular portion 4 are interconnected by a first annular fold 7.
  • the end annular portion 5 faces the intermediate annular portion 4 and is radially inside the latter, the end annular portion 5 surrounding the intermediate annular portion 4.
  • the intermediate annular portion 4 and the annular portion terminal 5 are interconnected by a second annular fold 8.
  • the intermediate annular portion 4 and the terminal annular portion 5 arrange between them an axial annular mounting slot 9 of U-shaped axial section, open axially on one side opposite the annular fold 8 and the other end of the main axial portion 3.
  • the annular ply 8 axially forms the annular bottom of the annular mounting slot 9 which is therefore blind.
  • the end of the terminal annular portion 5 is substantially adjacent to the first annular ply 7, preferably axially set back inwards relative to this ply 7.
  • the sealing device 1 further comprises a connecting member 10 which has a radial plate 11, for example with a square outline, and, in its middle and around a through opening, an axial annular mounting part 12 which is projecting from one side of the radial plate 11 and which is connected to the radial plate 11 by an annular fold 13.
  • a connecting member 10 which has a radial plate 11, for example with a square outline, and, in its middle and around a through opening, an axial annular mounting part 12 which is projecting from one side of the radial plate 11 and which is connected to the radial plate 11 by an annular fold 13.
  • the axial annular mounting part 12 of the connecting member 10 is engaged axially in the annular mounting slot 9 provided between the intermediate annular portion 4 and the terminal annular portion 5 of the duct 2.
  • the radially opposite faces of the axial annular part mounting 12 of the connecting member 10 are respectively facing the intermediate annular portion 4 and the terminal annular portion 5.
  • the annular ply 13 of the connecting member 10 is adjacent to the annular ply 7 of the conduit 2 and passes above.
  • the annular end edge of the axial annular mounting part 12 is adjacent to the annular ply 8.
  • the axial annular mounting part 12 of the connecting member 10 is taken or clamped radially by radial compression of at least one annular zone, in the annular mounting slot 9 between the intermediate annular portion 4 and the terminal annular portion 5 of the conduit 2, so as to ensure assembly.
  • the radial compression of the axial annular mounting part 12 between the intermediate annular portion 4 and the end annular portion 5 makes it possible to obtain a tight connection.
  • annular end part 6 of the main axial portion 3, the intermediate annular portion 4, the axial annular assembly part 12 and the end annular portion 5 are for example locally deformed outwards respectively in the form of annular beads of reinforcement 6a, 4a, 12a and 5a successively engaged in each other.
  • annular fold 7 joining the main portion 3 and the intermediate portion 4 of the duct 2 is specifically rounded and can constitute a rounded support for the annular fold 13 of the connecting member 10.
  • the conduit 2 may be metallic, for example galvanized sheet metal or aluminum, or a plastic material or any other suitable material.
  • the connecting member 10 can be made of a bituminous material, in the form of a flexible membrane, or metallic, for example a stamped sheet.
  • the sealing device 1 can be installed on a slab 14 of a flat or sloping roof to form a sealed connection, for example in the following manner.
  • the main portion 3 of the duct 2 is engaged from top to bottom in the hole 15, until the radial plate 11 of the connecting member 10 rests on the sealing sub-layer 16 and adheres to the latter. .
  • an outer sealing layer 17 is placed on the underlayer 16 and on the radial plate 11 of the connecting member 10, leaving free access to the vertical passage delimited by the conduit 2, the layer sealing 17 adhering to the underlayer 16 and to the radial plate 11 of the connecting member 10.
  • the waterproofing sub-layer 16 and the outer waterproofing layer 17 can be made of a bituminous material, placed hot.
  • the sealing sub-layer 16 adheres to the slab 14
  • the outer sealing layer 17 adheres to the sealing sub-layer 16
  • the radial plate 11 of the connecting member adheres on the one hand to the waterproofing sub-layer 16 and on the other hand to the outer waterproofing layer 17.
  • the plate 11 of the connecting member 10 metal, can be welded to these plates.
  • the sealing device 1 can be installed upside down, that is to say in a position such that the radial plate 11 of the connecting member 10 is placed on the slab 14 , between the sealing layers 16 and 17, and that the main axial portion 3 of the duct 2 extends upwards, opposite the hole 15 and projects upwards relative to the slab 14.
  • the machine 100 comprises a horizontal plate 101 sectorized in the form of jaws 102 delimiting a vertical passage 103.
  • the duct 2 is arranged in a vertical position such that an upper end part 2a of the duct 2 protrudes above the upper radial face 104 of the plate 102.
  • the lower end of the duct 2 can rest on a support (not shown).
  • the machine 100 comprises a cylindrical forming jig 105 which is engaged with a small clearance inside the duct 2.
  • the upper end of the template 105 has a cylindrical axial annular rib 106 adjacent to the inner face of the duct 2 and, from the lower foot of this rib and inside, a frustoconical front surface 107, the inner side of the rib 106 and the front surface 107 forming an annular groove 108 of inclined V section.
  • the upper annular edge 106a of the annular rib 106 is rounded.
  • the annular bottom of the V-shaped annular groove 108 is rounded.
  • the template 105 is placed vertically in a position such that the upper annular edge 106a of the annular rib 106 is located near the upper face 104 of the plate 102.
  • conduit 2 extending downwards from the annular zone adjacent to the upper annular edge 106a of rib 106 constitutes a main axial portion 3 of conduit 2.
  • the machine 100 comprises a forming tool 109 which comprises jaws 110, in the form of cylinder sectors, which are arranged above the plate 102 and around the projecting part 2a of the duct 2.
  • the jaws 110 have sectoral parts specific end 111 which will be described later.
  • the jaws 110 are moved radially inwards so as to fold the projecting part 2a of the duct 2 inwards, forming an annular fold on the upper annular edge of the annular rib 106 of the template 105.
  • the jaws 110 have reached a determined internal radial position, the end part 2a of the duct 2 extends substantially radially inwards with respect to the cylindrical axial portion 3 of this duct 2 and an annular fold 7 is partially formed on the annular edge upper part of annular rib 106 of template 105.
  • the lower end parts 111 of the jaws 110 form an annular rib complementary to the groove 108 of the template 105.
  • the jaws 110 are moved axially downwards in the direction of the template 105 so as to continue the bending of the part 2a of the duct 2, inside the main axial portion 3, bypassing the upper annular edge 106a of this rib ring 106 of the template 105.
  • the movement of the jaws 110 is continued until the part 2a of the duct 2 deforms to induce the partial formation of an intermediate annular portion 4 of the duct 2 against the inner face of the annular rib 106 of the template 105 and of an end annular portion 5 of the conduit 2 against the frustoconical front surface 107 of the template 105.
  • the annular fold 7 is accentuated and the intermediate annular portion 4 is folded down towards the main axial portion 3.
  • An annular fold 8 is partially formed.
  • the jig 105 is moved downwards and the jaws 110 of the tool 109 are moved.
  • a preform of conduit 2 is then obtained.
  • the machine 100 comprises a spacer tool 112 which is placed axially inside the partially formed terminal annular portion 5 of the duct 2.
  • this rotary spacer tool 112 is actuated radially outwards to fold the end annular portion 5 of the duct 2 towards the intermediate annular portion 4 by accentuating the annular fold 8 and forming an annular slot 9 of cylindrical shape and increased thickness, between the intermediate annular portion 4 and the terminal annular portion 5 of the conduit 2.
  • the spreader tool 113 is actuated radially outwards in order to compress, radially against the inner face of the passage 103 of the plate 101, the radial stack constituted by the annular end part 6 of the main axial portion 3, the intermediate annular portion 4, the axial annular mounting part 12 and the terminal annular portion 5.
  • the spacing between the intermediate annular portion 4 and the terminal annular portion 5 is reduced and the axial annular mounting part 12 of the connecting member 10 is taken radially, in a sealed manner, between these portions 4 and 5.
  • the sealing device 1 described and illustrated in the figure 1 .
  • the machine 100 can include a device 115 for supplying hot air so that the cylindrical part 12 of the connecting member 120, heated, adheres to the intermediate annular portion 4 and to the terminal annular portion 5 during the aforementioned compression operation.
  • this supply of hot air can also be useful for at least partial heating of the duct 2 in order to facilitate the described bending operations of the upper part 2a of the duct 2.
  • a sealing device 201 comprises a conduit 202 having an intermediate annular portion 204 facing each other and surrounding an annular end portion 206 of a main axial portion 203 and an end annular portion 205 facing each other. screw and surrounding this intermediate annular portion 204.
  • the intermediate annular portion 204 and the annular end part 206 are connected by a first annular fold 207.
  • the intermediate annular portion 204 and the end annular portion 205 are connected by a second annular fold 208 Consequently, the end portion 206, the intermediate annular portion 204 and the terminal annular portion 205 are radially inverted with respect to the end portion 6, the intermediate annular portion 4 and the terminal annular portion 5 of the device. sealing 1.
  • the intermediate portion 204 is located radially inside the terminal portion 205 and the end portion 206 is located radially inside the intermediate portion 204.
  • the intermediate annular portion 204 and the terminal annular portion 205 arrange between them an axial annular mounting slot 209 of U-shaped axial section, open axially opposite the annular ply 208.
  • the axial annular mounting slot 209 is open axially outward, on one side, opposite the other end of the main axial portion 203.
  • the annular fold 208 axially forms the annular bottom of the annular mounting slot. assembly 209 which is therefore blind.
  • the sealing device 201 also comprises a connecting member 210 which has a radial plate 211 and, in its middle and around a through opening, an axial annular mounting part 212 which projects from one side of the radial plate 211 and which is engaged axially in the axial annular mounting slot 209 between the intermediate annular portion 204 and the terminal annular portion 205.
  • the radially opposite faces of the axial annular part of assembly 212 of the connecting member 210 are respectively facing the intermediate annular portion 204 and the terminal annular portion 205.
  • the annular fold of the connecting member 10, connecting the radial plate 211 and the axial annular mounting part 212, is adjacent to the annular fold 207 of the duct 202 and moves away from it.
  • the end annular edge of the axial mounting annular portion 212 is adjacent to the annular fold 208.
  • the axial annular mounting part 212 of the connecting member 10 is taken or clamped radially by radial compression of at least one annular zone, in the annular mounting slot 209 between the intermediate annular portion 204 and the end annular portion 205 of the conduit 202, so as to ensure assembly.
  • the radial compression of the axial annular mounting part 212 between the intermediate annular portion 204 and the terminal annular portion 205 makes it possible to obtain a tight connection.
  • the intermediate annular portion 204 and the terminal annular portion 205 can be produced by bending by implementing tools that are radially reversed with respect to those implemented to obtain the intermediate annular portion 4 and the terminal annular portion 5 of the device sealing 1. Then, as described above, the connecting member 210 is put in place and the annular end part 206, the intermediate annular portion 204 and the end annular portion 205 and the axial annular mounting part 212 are radially compressed by forming, for example, beads engaged in each other.
  • terminal annular portion 205 is advantageous for the terminal annular portion 205 to be extended by a radial peripheral collar 205a extending outwards opposite the central part of the connecting member 210 and comprising a rounded annular fold 205b and possibly a peripheral radial part 205c, thus avoiding damage to the connecting member 210.
  • a sealing device 1A which constitutes a variant embodiment of the sealing device 1 of the figure 1 , wherein the conduit 2 comprises two parts 20A and 20B assembled to each other by welding.
  • the first part 20A comprises a first portion 21a of the main axial portion 3, starting from the fold 7 between the annular end part 6 and the intermediate annular portion 4, comprises the intermediate annular portion 4 connected to the annular end part 6 by the annular ply 7 and comprises the terminal annular portion 5 connected to the intermediate portion 4 by the annular ply 8.
  • the second part 20B comprises the rest of the main axial portion 3, namely a second end portion 21b of the main axial portion 3, this second end portion 21b being constituted by a cylindrical tube.
  • the parts 2A and 2B are assembled by an annular sealing bead 22, which connects the adjacent edges of the first portion 21a and of the second portion 21b of the main axial portion 3.
  • the first portion 21a of the main axial portion 3 includes the annular end part 6 located opposite the intermediate annular portion 4, the weld bead 22 being located for example at a distance beyond the fold annular 8 between the intermediate annular portion 4 and the terminal annular portion 5, for example at a short distance.
  • the adjacent edges of the first portion 21a and of the second portion 21b of the main axial portion 3 could be engaged one inside the other, then welded.
  • part 20A is in one piece and can be preformed, separately from part 20B, then assembled to part 20B by weld bead 22.
  • the part 20A can be obtained from a plate in the form of an annular disc, to which one or more operations of stamping (folding) or spinning of the material, of so as to obtain a preform 23 illustrated on the figure 13 , wherein the portions 4, 5 and 21a are substantially cylindrical.
  • the portions 4 and 5 form between them an enlarged annular mounting slot 9.
  • a radial compression operation is carried out so as to form the local annular beads 6a, 4a, 12a and 5a and in sealingly compressing the axial annular mounting part 12 of the connecting member 10 in the annular mounting slot 9 between the intermediate annular portion 4 and the terminal annular portion 5, in order to obtain the sealing device 1A .
  • the connecting member 10 could be assembled by crimping to the preform 23 of the part 20A, then the parts 20A and 20B could be assembled using the annular weld bead 22.
  • FIG 15 On the figure 15 is illustrated a sealing device 1B which constitutes a variant embodiment of the sealing device 1 of the figure 1 , wherein the conduit 2 comprises two parts 30A and 30B assembled to each other.
  • the second part 30B comprises the main axial portion 3, including the annular end part 6.
  • the first part 30A comprises the intermediate portion 4 and the end portion 5, connected by the fold 8 and forming between them the annular mounting slot 9 in which the axial annular mounting portion 12 of the connecting member 10 is engaged and taken or enclosed.
  • the part 30A further comprises a complementary annular portion 31 which is connected to the intermediate portion 4 by an annular fold 32.
  • the intermediate portion 4 and the complementary portion 31 form between them an annular mounting slot 33, open axially opposite of the annular mounting slot 9.
  • the annular end part 6 of the main axial portion 3 is engaged in the annular assembly slot 33, so that the complementary portion 31 surrounds the end part 6 of the main axial portion 3 and the annular fold 32 circumvents the end edge of the end part 6 of the main axial portion 3.
  • the annular end part 6 of the main axial portion 3 is taken or clamped, by radial compression, in the annular mounting slot 33 provided between the intermediate annular portion 4 and the complementary portion 31.
  • the position of the annular end of the complementary portion 31 corresponds, axially, substantially to the position of the annular fold 8.
  • the complementary portion 31 has a bead 31a.
  • Part 30A can be preformed, separately from part 30B, then assembled by crimping to part 30B at the same time as connecting member 10.
  • the part 30A is in one piece and can be obtained from a plate in the form of an annular disc, to which one or more operations of stamping (folding) or embossing of the material, of so as to obtain a preform 34 illustrated on the figure 16 , wherein the portions 4, 5 and 31 are substantially cylindrical. Portions 4 and 5 together form an enlarged annular mounting slot 9 and the portions 4 and 31 form between them an enlarged annular mounting slot 33.
  • a radial compression operation is carried out so as to form the local annular beads 4a, 5a, 6a, 12a and 31a and compressing the axial annular mounting part 12 of the connecting member 10 in the annular mounting slot 9 between the intermediate annular portion 4 and the end annular portion 5 and the end annular part 6 between the annular portion intermediate 4 and the complementary annular portion 31, in order to obtain the sealing device 1B by crimping.
  • annular portions 4 and 5 arranging the axial mounting slot 209 are outside the annular end part 6 of the main axial portion 3 and the complementary annular portion 31 is inside the annular end part 6 of main axial portion 3.
  • end annular part 205 can be provided with a radial flange projecting outwards, equivalent to flange 205a.
  • the complementary annular part 31 of the part 30A could be located between the intermediate annular portion 4 and the end part 6 of the main axial portion 3 constituting the part 30B.
  • the complementary annular portion 31 of the part 30A could be welded to the main axial portion 3 constituting the part 30B by an annular weld bead provided at one end of complementary annular portion 31 or annular weld beads provided at the ends of complementary annular portion 31.
  • part 30A could be attached to part 30B without welding.
  • a sealing device 1C which constitutes an alternative embodiment of the sealing device 201 of the figure 11 , wherein the conduit 2 comprises two parts 40A and 40B assembled to each other.
  • the second part 40B comprises the main axial portion 203, including the annular end part 206.
  • the first part 30A comprises the intermediate portion 204 and the end portion 205, connected by the fold 208 and forming between them the annular mounting slot 209 in which the axial annular mounting portion 212 of the connecting member 210 is engaged and taken by crimping during the radial compression of portions 4, 5 and 6 and 212.
  • the first part 30A can be preformed and then assembled by crimping to the annular end part 206 of the main axial portion 203, at the same time as the axial annular mounting portion 212 of the connecting member 210.
  • the intermediate annular portion 204 of the part 40A could be welded to the main axial portion 203 constituting the part 40B by an annular weld bead 213 provided at one end of the annular portion 204 or annular weld beads provided at the ends of the intermediate annular portion 204.
  • part 40A could be attached to part 40B without welding.
  • the first part 30A would be inside the annular end part 206 of the main axial portion 203.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Gasket Seals (AREA)
  • Joints With Sleeves (AREA)
  • Laying Of Electric Cables Or Lines Outside (AREA)
  • Flanged Joints, Insulating Joints, And Other Joints (AREA)
  • Pipe Accessories (AREA)

Description

La présente invention concerne un procédé pour la fabrication d'un dispositif d'étanchéité pour le bâtiment, en particulier pour un toit.The present invention relates to a method for the manufacture of a sealing device for the building, in particular for a roof.

Les toits des bâtiments, notamment les dalles plates de toits, présentent des passages traversants qui sont prévus pour l'écoulement des eaux de pluie ou le passage de cheminées. Les conduits d'écoulement ou de cheminée doivent être reliés de façon étanche aux étanchéités aménagées sur les dalles.The roofs of buildings, in particular the flat slabs of roofs, have through passages which are provided for the flow of rainwater or the passage of chimneys. The drains or chimneys must be connected in a watertight manner to the seals provided on the slabs.

Le brevet EP 1 710 365 décrit un dispositif d'étanchéité qui comprend un conduit muni à une extrémité d'une membrane souple radiale. La membrane présente une portion annulaire axiale prise entre une portion d'extrémité du conduit et une bague intérieure rapportée de montage. Pour éviter une déchirure de la membrane, la bague intérieure et une bague extérieure rapportée sont pourvues de collerettes entre lesquelles est prise une zone annulaire radiale de la membrane.The patent EP 1 710 365 describes a sealing device which comprises a duct provided at one end with a radial flexible membrane. The membrane has an axial annular portion taken between an end portion of the duct and an attached inner mounting ring. To prevent tearing of the membrane, the inner ring and an attached outer ring are provided with flanges between which a radial annular zone of the membrane is taken.

Le brevet WO 2012/045372 décrit un dispositif d'étanchéité qui comprend un conduit principal, un conduit secondaire dont une portion inférieure d'extrémité est engagée, de façon télescopique, dans une portion supérieure du conduit principal et une membrane de montage sur un toit, qui comprend un plateau et une partie axiale de montage placée entre les portions d'extrémité du conduit principal et du conduit secondaire. Les portions d'extrémité du conduit principal et du conduit secondaire et la partie axiale de montage sont déformées radialement de sorte à former des bourrelets espacés axialement, engagés les uns dans les autres. Il existe cependant un risque de passage direct d'eau entre les portions d'extrémité des conduits.The patent WO 2012/045372 describes a sealing device which comprises a main duct, a secondary duct whose lower end portion is telescopically engaged in an upper portion of the main duct and a membrane for mounting on a roof, which comprises a plate and an axial mounting part placed between the end portions of the main duct and of the secondary duct. The end portions of the main duct and of the secondary duct and the axial mounting part are deformed radially so as to form axially spaced beads, engaged one in the other. However, there is a risk of direct passage of water between the end portions of the conduits.

Le document US 2016/038988 décrit un dispositif d'étanchéité comprenant un conduit et un organe de liaison solidaire de ce conduit, dans lequel le conduit forme une fente annulaire axiale de montage à l'intérieur de laquelle est montée et bloquée une partie axiale de l'organe de liaison.The document US 2016/038988 describes a sealing device comprising a duct and a connecting member integral with this duct, in which the duct forms an axial annular mounting slot inside which an axial part of the connecting member is mounted and locked.

Par ailleurs des assemblages d'éléments tubulaires sont connus de US 5165732 , US 5970667 et EP 2395173 .Furthermore, assemblies of tubular elements are known from US 5165732 , US 5970667 and EP 2395173 .

Selon un mode de réalisation qui n'est pas l'objet de la présente invention, il est proposé un dispositif d'étanchéité pour le bâtiment qui comprend un conduit et un organe de liaison solidaire de ce conduit.According to one embodiment which is not the subject of the present invention, there is proposed a sealing device for the building which comprises a conduit and a connecting member integral with this conduit.

Le conduit comprend une portion axiale principale, une portion annulaire intermédiaire en vis-à-vis d'une partie annulaire d'extrémité de la portion axiale principale, une portion annulaire terminale en vis-à-vis de la portion annulaire intermédiaire, la portion annulaire intermédiaire et la portion annulaire terminale étant situées radialement l'une à l'intérieur de l'autre et reliées par un pli annulaire de sorte à former une fente annulaire axiale de montage ouverte axialement à l'opposé de ce pli annulaire et de l'autre extrémité de la portion axiale principale, la portion annulaire intermédiaire s'étendant entre ladite partie annulaire d'extrémité de la portion axiale principale et la portion annulaire terminale.The duct comprises a main axial portion, an intermediate annular portion facing an end annular part of the main axial portion, an end annular portion facing the intermediate annular portion, the intermediate annular part and the terminal annular portion being located radially one inside the other and connected by an annular fold so as to form an axial annular mounting slot open axially opposite this annular fold and the other end of the main axial portion, the intermediate annular portion extending between said annular end portion of the main axial portion and the terminal annular portion.

L'organe de liaison comprend un plateau radial et, autour d'une ouverture traversante, une portion annulaire axiale de montage, le plateau radial et la portion annulaire axiale de montage étant reliés par un pli annulaire.The connecting member comprises a radial plate and, around a through opening, an axial annular mounting portion, the radial plate and the axial annular mounting portion being connected by an annular fold.

La portion annulaire axiale de montage de l'organe de liaison est engagée axialement et prise ou enserrée radialement, sur au moins une zone annulaire, dans ladite fente annulaire de montage entre la portion annulaire intermédiaire et la portion annulaire terminale du conduit.The axial annular mounting portion of the connecting member is engaged axially and radially engaged or clamped, over at least one annular zone, in said annular mounting slot between the intermediate annular portion and the end annular portion of the duct.

Ladite portion axiale principale, ladite portion annulaire intermédiaire du conduit, ladite portion annulaire axiale de montage de l'organe de liaison et ladite portion axiale terminale du conduit peuvent présenter des bourrelets annulaires engagés les uns dans les autres.Said main axial portion, said intermediate annular portion of the conduit, said axial annular portion for mounting the connecting member and said terminal axial portion of the conduit may have annular beads engaged in one another.

Ladite portion annulaire intermédiaire peut être située à l'intérieur de ladite partie annulaire d'extrémité et ladite portion annulaire terminale peut être située à l'intérieur de ladite portion annulaire intermédiaire.Said intermediate annular portion may be located inside said end annular portion and said terminal annular portion may be located inside said intermediate annular portion.

Ladite portion annulaire intermédiaire peut être située à l'extérieur de ladite partie annulaire d'extrémité et ladite portion annulaire terminale peut être située à l'extérieur de ladite portion annulaire intermédiaire.Said intermediate annular portion may be located outside of said end annular portion and said portion annular terminal can be located outside of said intermediate annular portion.

Ladite portion annulaire terminale peut être pourvue d'une collerette annulaire s'étendant vers l'extérieur en vis-à-vis de l'organe de liaison.Said terminal annular portion may be provided with an annular collar extending outwardly opposite the connecting member.

Ladite portion intermédiaire peut être reliée à ladite portion axiale principale par un pli annulaire.Said intermediate portion can be connected to said main axial portion by an annular fold.

Ledit conduit peut être d'une pièce.Said duct may be in one piece.

Ledit conduit peut comprendre deux parties assemblées, dont l'une comprend ladite portion annulaire terminale, ladite portion annulaire intermédiaire et ladite partie annulaire d'extrémité de ladite portion axiale principale et dont l'autre comprend l'autre partie annulaire d'extrémité de ladite portion axiale principale ; les bords desdites parties annulaires d'extrémité de ladite portion axiale principale étant accouplés.Said duct may comprise two assembled parts, one of which comprises said terminal annular portion, said intermediate annular portion and said annular end part of said main axial portion and the other of which comprises the other annular end part of said main axial portion; the edges of said annular end portions of said main axial portion being coupled.

Les bords desdites parties annulaires d'extrémité de ladite portion axiale principale peuvent être reliés par un cordon annulaire de soudure.The edges of said annular end portions of said main axial portion can be connected by an annular weld bead.

Ledit conduit peut comprendre deux parties assemblées, dont une première partie comprend ladite portion annulaire terminale et ladite portion annulaire intermédiaire reliées par ledit pli annulaire et dont une deuxième partie comprend ladite portion axiale principale.Said duct may comprise two assembled parts, a first part of which comprises said end annular portion and said intermediate annular portion connected by said annular fold and a second part of which comprises said main axial portion.

Ladite première partie du conduit peut comprendre une portion annulaire complémentaire reliée à ladite portion annulaire intermédiaire par un pli annulaire, ladite portion annulaire intermédiaire et ladite portion annulaire complémentaire formant une fente annulaire de montage dans laquelle ladite partie annulaire d'extrémité de ladite portion axiale principale est engagée et prise entre ladite portion annulaire intermédiaire et ladite portion annulaire complémentaire.Said first part of the conduit may comprise a complementary annular portion connected to said intermediate annular portion by an annular fold, said intermediate annular portion and said complementary annular portion forming an annular mounting slot in which said annular end part of said main axial portion is engaged and caught between said intermediate annular portion and said complementary annular portion.

Ledit conduit peut être métallique et ledit organe de liaison peut être en une matière bitumée ou métallique.Said conduit may be metallic and said connecting member may be made of a bituminous or metallic material.

Il est également proposé un procédé de fabrication d'un dispositif d'étanchéité qui comprend un conduit et un organe de liaison comprenant un plateau radial et une portion annulaire axiale de montage, qui selon l'invention comprend les caractéristiques de la revendication 1.There is also proposed a method of manufacturing a sealing device which comprises a conduit and a connecting member comprising a radial plate and an axial annular mounting portion, which according to the invention comprises the features of claim 1.

Le procédé comprend : une étape de pliage d'une partie annulaire d'extrémité dudit conduit, pour l'obtention d'une fente annulaire axiale de montage ouverte axialement vers l'extérieur, entre une portion annulaire intermédiaire reliée à une portion axiale principale par un premier pli annulaire et une portion annulaire terminale reliée à la portion annulaire intermédiaire par un second pli annulaire ; une étape d'engagement axial d'une portion annulaire axiale de montage de l'organe de liaison dans ladite fente annulaire de montage ; et une étape de compression radiale de ladite portion annulaire axiale de montage de l'organe de liaison, sur au moins une zone annulaire, entre ladite portion annulaire intermédiaire et ladite portion annulaire terminale du conduit.The method comprises: a step of bending an annular end portion of said duct, to obtain an axial annular assembly slot open axially outwards, between an intermediate annular portion connected to a main axial portion by a first annular ply and an end annular portion connected to the intermediate annular portion by a second annular ply; a step of axial engagement of an axial annular mounting portion of the connecting member in said annular mounting slot; and a step of radially compressing said axial annular mounting portion of the connecting member, over at least one annular zone, between said intermediate annular portion and said terminal annular portion of the duct.

L'étape de compression radiale peut comprendre une déformation de ladite portion axiale principale, de ladite portion annulaire intermédiaire, de ladite portion annulaire axiale de montage et de la portion annulaire terminale, pour l'obtention de bourrelets annulaires engagés les uns dans les autres.The radial compression step may comprise a deformation of said main axial portion, of said intermediate annular portion, of said axial annular assembly portion and of the end annular portion, to obtain annular beads engaged in one another.

Le procédé peut comprendre une étape de chauffage lors de l'étape de compression, pour l'obtention d'un collage de ladite portion annulaire axiale de montage contre ladite portion annulaire intermédiaire et de la portion annulaire terminale.The method may comprise a heating step during the compression step, to obtain a bonding of said axial annular assembly portion against said intermediate annular portion and of the terminal annular portion.

Le procédé peut comprendre une étape de chauffage au moins partiel du conduit lors de l'étape de pliage.The method may include a step of at least partially heating the conduit during the bending step.

Il est également proposé un procédé de fabrication d'un dispositif d'étanchéité comprenant un conduit et un organe de liaison comprenant un plateau radial et une portion annulaire axiale de montage, qui selon l'invention comprend les caractéristiques de la revendication 4.There is also proposed a method of manufacturing a sealing device comprising a conduit and a connecting member comprising a radial plate and an axial annular mounting portion, which according to the invention comprises the characteristics of claim 4.

Ce procédé comprend :
une étape de réalisation d'une préforme comprenant au moins une portion annulaire intermédiaire et une portion annulaire terminale, reliées par un pli annulaire et formant entre elles une fente annulaire de montage ; une étape de montage de ladite préforme sur une partie annulaire d'extrémité dudit conduit, dans une position telle que ladite portion annulaire intermédiaire est située entre ladite partie annulaire d'extrémité dudit conduit et ladite portion annulaire terminale, et de montage de ladite portion annulaire axiale de montage dudit organe de liaison dans ladite fente annulaire de montage ; et une étape de compression radiale, sur au moins une zone annulaire, de ladite portion annulaire axiale de montage de l'organe de liaison, de ladite portion annulaire intermédiaire, de ladite portion annulaire terminale du conduit et de ladite partie annulaire d'extrémité dudit conduit de sorte à assurer le montage et obtenir une liaison étanche entre le conduit et l'organe de liaison.This process includes:
a step of producing a preform comprising at least one intermediate annular portion and one terminal annular portion, connected by an annular fold and forming between them an annular mounting slot; a step of mounting said preform on a part annular end of said conduit, in a position such that said intermediate annular portion is located between said annular end portion of said conduit and said end annular portion, and for mounting said axial annular portion for mounting said connecting member in said slot mounting ring; and a step of radially compressing, over at least one annular zone, said axial annular portion for mounting the connecting member, said intermediate annular portion, said terminal annular portion of the duct and said annular end portion of said conduit so as to ensure assembly and obtain a sealed connection between the conduit and the connecting member.

L'étape de réalisation d'une préforme peut comprendre la réalisation d'une portion annulaire complémentaire reliée à ladite portion annulaire intermédiaire, délimitant entre elles une fente annulaire de montage, l'étape de montage peut comprendre le montage de ladite partie annulaire d'extrémité dudit conduit dans cette fente annulaire de montage et l'étape de compression radiale peut comprendre la compression de ladite portion annulaire complémentaire.The step of producing a preform may comprise the production of a complementary annular portion connected to said intermediate annular portion, delimiting between them an annular mounting slot, the mounting step may comprise the mounting of said annular part of end of said duct in this annular mounting slot and the radial compression step may comprise the compression of said complementary annular portion.

Des dispositifs d'étanchéité pour le bâtiment vont maintenant être décrits à titre d'exemples de réalisation, illustrés par le dessin annexé dans lequel :

  • la figure 1 représente une coupe axiale d'un dispositif d'étanchéité ;
  • la figure 2 représente une coupe axiale d'un montage du dispositif d'étanchéité de la figure 1 sur une dalle d'un bâtiment ; et
  • les figures 3 à 10 représentent des étapes de fabrication du dispositif d'étanchéité de la figure 1 à l'aide d'une machine ;
  • la figure 11 représente une coupe axiale d'un autre dispositif d'étanchéité constituant une variante de réalisation du dispositif d'étanchéité de la figure 1 ;
  • la figure 12 représente une coupe axiale d'un autre dispositif d'étanchéité constituant une variante de réalisation du dispositif d'étanchéité de la figure 1 ;
  • la figure 13 représente une coupe axiale d'une partie du dispositif d'étanchéité de la figure 12 ;
  • la figure 14 représente une coupe axiale d'une partie du dispositif d'étanchéité de la figure 12, en cours de fabrication ;
  • la figure 15 représente une coupe axiale d'un autre dispositif d'étanchéité constituant une variante de réalisation du dispositif d'étanchéité de la figure 1 ;
  • la figure 16 représente une coupe axiale d'une partie du dispositif d'étanchéité de la figure 15 ;
  • la figure 17 représente une coupe axiale d'une partie du dispositif d'étanchéité de la figure 15, en cours de fabrication ; et
  • la figure 18 représente une coupe axiale d'un autre dispositif d'étanchéité constituant une variante de réalisation du dispositif d'étanchéité de la figure 11.
Sealing devices for the building will now be described by way of exemplary embodiments, illustrated by the appended drawing in which:
  • the figure 1 shows an axial section of a sealing device;
  • the figure 2 shows an axial section of an assembly of the sealing device of the figure 1 on a slab of a building; and
  • them figures 3 to 10 represent manufacturing steps of the sealing device of the figure 1 using a machine;
  • the figure 11 shows an axial section of another sealing device constituting an alternative embodiment of the sealing device of the figure 1 ;
  • the figure 12 shows an axial section of another sealing device constituting an alternative embodiment of the sealing device of the figure 1 ;
  • the figure 13 shows an axial section of part of the sealing device of the figure 12 ;
  • the figure 14 shows an axial section of part of the sealing device of the figure 12 , during manufacture ;
  • the figure 15 shows an axial section of another sealing device constituting an alternative embodiment of the sealing device of the figure 1 ;
  • the figure 16 shows an axial section of part of the sealing device of the figure 15 ;
  • the figure 17 shows an axial section of part of the sealing device of the figure 15 , during manufacture ; and
  • the figure 18 shows an axial section of another sealing device constituting an alternative embodiment of the sealing device of the figure 11 .

Un dispositif d'étanchéité 1, illustré sur la figure 1, comprend un conduit cylindrique 2 qui présente successivement une portion axiale principale 3, une portion annulaire intermédiaire 4 et une portion annulaire terminale 5, la portion annulaire intermédiaire 4 s'étendant entre la portion axiale principale 3 et la portion annulaire terminale 5.A sealing device 1, illustrated in the figure 1 , comprises a cylindrical duct 2 which successively has a main axial portion 3, an intermediate annular portion 4 and a terminal annular portion 5, the intermediate annular portion 4 extending between the main axial portion 3 and the terminal annular portion 5.

La portion annulaire intermédiaire 4 est en vis-à-vis d'une partie annulaire d'extrémité 6 de la portion axiale principale 3 et est radialement à l'intérieur de ou entoure cette dernière. La portion axiale principale 3 et la portion annulaire intermédiaire 4 sont reliées entre elles par un premier pli annulaire 7.The intermediate annular portion 4 faces an annular end portion 6 of the main axial portion 3 and is radially inside or surrounds the latter. The main axial portion 3 and the intermediate annular portion 4 are interconnected by a first annular fold 7.

La portion annulaire terminale 5 est en vis-à-vis de la portion annulaire intermédiaire 4 et est radialement à l'intérieur de cette dernière, la portion annulaire terminale 5 entourant la portion annulaire intermédiaire 4. La portion annulaire intermédiaire 4 et la portion annulaire terminale 5 sont reliées entre elles par un second pli annulaire 8.The end annular portion 5 faces the intermediate annular portion 4 and is radially inside the latter, the end annular portion 5 surrounding the intermediate annular portion 4. The intermediate annular portion 4 and the annular portion terminal 5 are interconnected by a second annular fold 8.

La portion annulaire intermédiaire 4 et la portion annulaire terminale 5 aménagent entre elles une fente annulaire axiale de montage 9 de section axiale en forme de U, ouverte axialement d'un côté à l'opposé du pli annulaire 8 et de l'autre extrémité de la portion axiale principale 3. Le pli annulaire 8 forme axialement le fond annulaire de la fente annulaire de montage 9 qui par conséquent est borgne.The intermediate annular portion 4 and the terminal annular portion 5 arrange between them an axial annular mounting slot 9 of U-shaped axial section, open axially on one side opposite the annular fold 8 and the other end of the main axial portion 3. The annular ply 8 axially forms the annular bottom of the annular mounting slot 9 which is therefore blind.

L'extrémité de la portion annulaire terminale 5 est sensiblement adjacente au premier pli annulaire 7, de préférence axialement en retrait vers l'intérieur par rapport à ce pli 7.The end of the terminal annular portion 5 is substantially adjacent to the first annular ply 7, preferably axially set back inwards relative to this ply 7.

Le dispositif d'étanchéité 1 comprend en outre un organe de liaison 10 qui présente un plateau radial 11, par exemple à contour carré, et, en son milieu et autour d'une ouverture traversante, une partie annulaire axiale de montage 12 qui est en saillie d'un côté du plateau radial 11 et qui est reliée au plateau radial 11 par un pli annulaire 13.The sealing device 1 further comprises a connecting member 10 which has a radial plate 11, for example with a square outline, and, in its middle and around a through opening, an axial annular mounting part 12 which is projecting from one side of the radial plate 11 and which is connected to the radial plate 11 by an annular fold 13.

La partie annulaire axiale de montage 12 de l'organe de liaison 10 est engagée axialement dans la fente annulaire de montage 9 aménagée entre la portion annulaire intermédiaire 4 et la portion annulaire terminale 5 du conduit 2. Les faces radialement opposées de la partie annulaire axiale de montage 12 de l'organe de liaison 10 sont en regard respectivement de la portion annulaire intermédiaire 4 et de la portion annulaire terminale 5.The axial annular mounting part 12 of the connecting member 10 is engaged axially in the annular mounting slot 9 provided between the intermediate annular portion 4 and the terminal annular portion 5 of the duct 2. The radially opposite faces of the axial annular part mounting 12 of the connecting member 10 are respectively facing the intermediate annular portion 4 and the terminal annular portion 5.

Le pli annulaire 13 de l'organe de liaison 10 est adjacent au pli annulaire 7 du conduit 2 et passe au-dessus. Le bord annulaire d'extrémité de la partie annulaire axiale de montage 12 est adjacent au pli annulaire 8.The annular ply 13 of the connecting member 10 is adjacent to the annular ply 7 of the conduit 2 and passes above. The annular end edge of the axial annular mounting part 12 is adjacent to the annular ply 8.

La partie annulaire axiale de montage 12 de l'organe de liaison 10 est prise ou enserrée radialement par compression radiale d'au moins une zone annulaire, dans la fente annulaire de montage 9 entre la portion annulaire intermédiaire 4 et la portion annulaire terminale 5 du conduit 2, de sorte à assurer le montage.The axial annular mounting part 12 of the connecting member 10 is taken or clamped radially by radial compression of at least one annular zone, in the annular mounting slot 9 between the intermediate annular portion 4 and the terminal annular portion 5 of the conduit 2, so as to ensure assembly.

Avantageusement, la compression radiale de la partie annulaire axiale de montage 12 entre la portion annulaire intermédiaire 4 et la portion annulaire terminale 5 permet d'obtenir une liaison étanche.Advantageously, the radial compression of the axial annular mounting part 12 between the intermediate annular portion 4 and the end annular portion 5 makes it possible to obtain a tight connection.

La partie annulaire d'extrémité 6 de la portion axiale principale 3, la portion annulaire intermédiaire 4, la partie annulaire axiale de montage 12 et la portion annulaire terminale 5 sont par exemple déformées localement vers l'extérieur respectivement sous la forme de bourrelets annulaires de renforcement 6a, 4a, 12a et 5a engagés successivement les uns dans les autres.The annular end part 6 of the main axial portion 3, the intermediate annular portion 4, the axial annular assembly part 12 and the end annular portion 5 are for example locally deformed outwards respectively in the form of annular beads of reinforcement 6a, 4a, 12a and 5a successively engaged in each other.

Avantageusement, le pli annulaire 7 joignant la portion principale 3 et la portion intermédiaire 4 du conduit 2 est spécifiquement arrondi et peut constituer un appui arrondi pour le pli annulaire 13 de l'organe de liaison 10.Advantageously, the annular fold 7 joining the main portion 3 and the intermediate portion 4 of the duct 2 is specifically rounded and can constitute a rounded support for the annular fold 13 of the connecting member 10.

Selon un exemple de réalisation, le conduit 2 peut être métallique, par exemple en tôle galvanisée ou en aluminium, ou en une matière plastique ou en toute autre matière adaptée. L'organe de liaison 10 peut être en une matière bitumée, sous la forme d'une membrane souple, ou métallique, par exemple en une tôle emboutie.According to an exemplary embodiment, the conduit 2 may be metallic, for example galvanized sheet metal or aluminum, or a plastic material or any other suitable material. The connecting member 10 can be made of a bituminous material, in the form of a flexible membrane, or metallic, for example a stamped sheet.

Selon une utilisation illustrée sur la figure 2, le dispositif d'étanchéité 1 peut être installé sur une dalle 14 d'un toit plat ou en pente pour constituer une liaison étanche, par exemple de la manière suivante.According to an illustrated use on the figure 2 , the sealing device 1 can be installed on a slab 14 of a flat or sloping roof to form a sealed connection, for example in the following manner.

Un trou 15 étant ménagé au travers de la dalle 13, on pose une sous-couche 16 d'étanchéité sur la face supérieure 14a de la dalle 14, jusqu'à proximité de ce trou 15.A hole 15 being made through the slab 13, a sealing sub-layer 16 is placed on the upper face 14a of the slab 14, up to the proximity of this hole 15.

On engage du haut vers le bas la portion principale 3 du conduit 2 dans le trou 15, jusqu'à ce que le plateau radial 11 de l'organe de liaison 10 repose sur la sous-couche d'étanchéité 16 et adhère à cette dernière.The main portion 3 of the duct 2 is engaged from top to bottom in the hole 15, until the radial plate 11 of the connecting member 10 rests on the sealing sub-layer 16 and adheres to the latter. .

Puis, optionnellement, on pose une couche extérieure d'étanchéité 17 sur la sous-couche 16 et sur le plateau radial 11 de l'organe de liaison 10, en laissant libre d'accès le passage vertical délimité par le conduit 2, la couche d'étanchéité 17 adhérant à la sous-couche 16 et au plateau radial 11 de l'organe de liaison 10.Then, optionally, an outer sealing layer 17 is placed on the underlayer 16 and on the radial plate 11 of the connecting member 10, leaving free access to the vertical passage delimited by the conduit 2, the layer sealing 17 adhering to the underlayer 16 and to the radial plate 11 of the connecting member 10.

Lors de la pose ou postérieurement, l'extrémité inférieure de la portion principale 3 du conduit 2 est engagée dans l'extrémité supérieure d'un conduit d'évacuation 18.During installation or subsequently, the lower end of the main portion 3 of the duct 2 is engaged in the upper end of an evacuation duct 18.

La sous-couche d'étanchéité 16 et la couche extérieure d'étanchéité 17 peuvent être en une matière bitumée, posées à chaud. Ainsi, la sous-couche d'étanchéité 16 adhère à la dalle 14, la couche extérieure d'étanchéité 17 adhère à la sous-couche d'étanchéité 16 et le plateau radial 11 de l'organe de liaison adhère d'une part à la sous-couche d'étanchéité 16 et d'autre part à la couche extérieure d'étanchéité 17.The waterproofing sub-layer 16 and the outer waterproofing layer 17 can be made of a bituminous material, placed hot. Thus, the sealing sub-layer 16 adheres to the slab 14, the outer sealing layer 17 adheres to the sealing sub-layer 16 and the radial plate 11 of the connecting member adheres on the one hand to the waterproofing sub-layer 16 and on the other hand to the outer waterproofing layer 17.

Ainsi, une liaison étanche est créée entre l'étanchéité formée sur la surface supérieure de la dalle 14 et le conduit 2 via la membrane souple 10.Thus, a tight connection is created between the tightness formed on the upper surface of the slab 14 and the conduit 2 via the flexible membrane 10.

Dans le cas où l'étanchéité au-dessus de la dalle 14 comprend des plaques métalliques, le plateau 11 de l'organe de liaison 10, métallique, peut être soudé à ces plaques.In the case where the sealing above the slab 14 comprises metal plates, the plate 11 of the connecting member 10, metal, can be welded to these plates.

Selon une variante d'utilisation, le dispositif d'étanchéité 1 peut être installé à l'envers, c'est-à-dire dans une position telle que le plateau radial 11 de l'organe de liaison 10 est posé sur la dalle 14, entre les couches d'étanchéité 16 et 17, et que la portion axiale principale 3 du conduit 2 s'étend vers le haut, en regard du trou 15 et en saillie vers le haut par rapport à la dalle 14.According to a variant of use, the sealing device 1 can be installed upside down, that is to say in a position such that the radial plate 11 of the connecting member 10 is placed on the slab 14 , between the sealing layers 16 and 17, and that the main axial portion 3 of the duct 2 extends upwards, opposite the hole 15 and projects upwards relative to the slab 14.

En se reportant aux figures 3 à 10, on va maintenant décrire un mode de fabrication du dispositif d'étanchéité 1, au moyen d'une machine 100, de sorte que le conduit 3 soit d'une pièce, c'est-à-dire que la portion annulaire intermédiaire 4 et la portion annulaire terminale 5 soient venues de matière avec la portion axiale principale 3.By referring to figures 3 to 10 , we will now describe a manufacturing method of the sealing device 1, by means of a machine 100, so that the conduit 3 is in one piece, that is to say that the intermediate annular portion 4 and the terminal annular portion 5 are integral with the main axial portion 3.

La machine 100 comprend une plaque horizontale 101 sectorisée en forme de mors 102 délimitant un passage vertical 103.The machine 100 comprises a horizontal plate 101 sectorized in the form of jaws 102 delimiting a vertical passage 103.

Comme illustré sur la figure 3, on dispose d'un conduit cylindrique initial 2, rectiligne d'un bout à l'autre, que l'on place verticalement au travers du passage 103, les mors 102 étant en contact avec la face extérieure du conduit 2.As illustrated on the picture 3 , there is an initial cylindrical duct 2, straight from one end to the other, which is placed vertically through the passage 103, the jaws 102 being in contact with the outer face of the duct 2.

Le conduit 2 est disposé dans une position verticale telle qu'une partie supérieure d'extrémité 2a du conduit 2 dépasse au-dessus de la face supérieure radiale 104 de la plaque 102. L'extrémité inférieure du conduit 2 peut reposer sur un appui (non représenté).The duct 2 is arranged in a vertical position such that an upper end part 2a of the duct 2 protrudes above the upper radial face 104 of the plate 102. The lower end of the duct 2 can rest on a support ( not shown).

La machine 100 comprend un gabarit cylindrique de formage 105 qui est engagé avec un faible jeu à l'intérieur du conduit 2.The machine 100 comprises a cylindrical forming jig 105 which is engaged with a small clearance inside the duct 2.

L'extrémité supérieure du gabarit 105 présente une nervure annulaire axiale cylindrique 106 adjacente à la face intérieure du conduit 2 et, depuis le pied inférieur de cette nervure et à l'intérieur, une surface frontale tronconique 107, le flanc intérieur de la nervure 106 et la surface frontale 107 formant une rainure annulaire 108 de section en V incliné. Le bord annulaire supérieur 106a de la nervure annulaire 106 est arrondi. Le fond annulaire de la rainure annulaire 108 en V est arrondi.The upper end of the template 105 has a cylindrical axial annular rib 106 adjacent to the inner face of the duct 2 and, from the lower foot of this rib and inside, a frustoconical front surface 107, the inner side of the rib 106 and the front surface 107 forming an annular groove 108 of inclined V section. The upper annular edge 106a of the annular rib 106 is rounded. The annular bottom of the V-shaped annular groove 108 is rounded.

Le gabarit 105 est placé verticalement dans une position telle que le bord annulaire supérieur 106a de la nervure annulaire 106 est situé au voisinage de la face supérieure 104 de la plaque 102.The template 105 is placed vertically in a position such that the upper annular edge 106a of the annular rib 106 is located near the upper face 104 of the plate 102.

La partie du conduit 2 s'étendant vers le bas depuis la zone annulaire adjacente au bord annulaire supérieur 106a de la nervure 106 constitue une portion axiale principale 3 du conduit 2.The part of conduit 2 extending downwards from the annular zone adjacent to the upper annular edge 106a of rib 106 constitutes a main axial portion 3 of conduit 2.

La machine 100 comprend un outil de formage 109 qui comprend des mors 110, en forme de secteurs de cylindre, qui sont disposés au-dessus de la plaque 102 et autour de la partie dépassante 2a du conduit 2. Les mors 110 présentent des parties sectorielles d'extrémité 111 spécifiques que l'on décrira plus loin.The machine 100 comprises a forming tool 109 which comprises jaws 110, in the form of cylinder sectors, which are arranged above the plate 102 and around the projecting part 2a of the duct 2. The jaws 110 have sectoral parts specific end 111 which will be described later.

Comme illustré sur la figure 4, on déplace les mors 110 radialement vers l'intérieur de façon à rabattre la partie dépassante 2a du conduit 2 vers l'intérieur, en formant un pli annulaire sur le bord annulaire supérieur de la nervure annulaire 106 du gabarit 105. Lorsque les mors 110 ont atteint une position radiale intérieure déterminée, la partie d'extrémité 2a du conduit 2 s'étend sensiblement radialement vers l'intérieur par rapport à la portion axiale cylindrique 3 de ce conduit 2 et un pli annulaire 7 est partiellement formé sur le bord annulaire supérieur de la nervure annulaire 106 du gabarit 105.As illustrated on the figure 4 , the jaws 110 are moved radially inwards so as to fold the projecting part 2a of the duct 2 inwards, forming an annular fold on the upper annular edge of the annular rib 106 of the template 105. When the jaws 110 have reached a determined internal radial position, the end part 2a of the duct 2 extends substantially radially inwards with respect to the cylindrical axial portion 3 of this duct 2 and an annular fold 7 is partially formed on the annular edge upper part of annular rib 106 of template 105.

Lorsque cette position radiale intérieure déterminée est atteinte, les parties inférieures d'extrémité 111 des mors 110 forment une nervure annulaire complémentaire de la rainure 108 du gabarit 105.When this determined internal radial position is reached, the lower end parts 111 of the jaws 110 form an annular rib complementary to the groove 108 of the template 105.

Puis, comme illustré sur la figure 5, on déplace les mors 110 axialement vers le bas en direction du gabarit 105 de façon à poursuivre le pliage de la partie 2a du conduit 2, à l'intérieur de la portion axiale principale 3, en contournant le bord annulaire supérieur 106a de cette nervure annulaire 106 du gabarit 105.Then, as shown in figure 5 , the jaws 110 are moved axially downwards in the direction of the template 105 so as to continue the bending of the part 2a of the duct 2, inside the main axial portion 3, bypassing the upper annular edge 106a of this rib ring 106 of the template 105.

Le mouvement des mors 110 est poursuivi jusqu'à ce que la partie 2a du conduit 2 se déforme pour induire la formation partielle d'une portion annulaire intermédiaire 4 du conduit 2 contre la face intérieure de la nervure annulaire 106 du gabarit 105 et d'une portion annulaire terminale 5 du conduit 2 contre la surface frontale tronconique 107 du gabarit 105. Le pli annulaire 7 est accentué et la portion annulaire intermédiaire 4 est rabattue vers la portion axiale principale 3. Un pli annulaire 8 est partiellement formé.The movement of the jaws 110 is continued until the part 2a of the duct 2 deforms to induce the partial formation of an intermediate annular portion 4 of the duct 2 against the inner face of the annular rib 106 of the template 105 and of an end annular portion 5 of the conduit 2 against the frustoconical front surface 107 of the template 105. The annular fold 7 is accentuated and the intermediate annular portion 4 is folded down towards the main axial portion 3. An annular fold 8 is partially formed.

Comme illustré sur la figure 6, on écarte vers le bas le gabarit 105 et on écarte les mors 110 de l'outil 109.As illustrated on the figure 6 , the jig 105 is moved downwards and the jaws 110 of the tool 109 are moved.

On obtient alors une préforme du conduit 2.A preform of conduit 2 is then obtained.

La machine 100 comprend un outil écarteur 112 qu'on place axialement à l'intérieur de la portion annulaire terminale 5 partiellement formée du conduit 2.The machine 100 comprises a spacer tool 112 which is placed axially inside the partially formed terminal annular portion 5 of the duct 2.

Comme illustré sur la figure 7, on actionne cet outil écarteur rotatif 112 radialement vers l'extérieur pour rabattre la portion annulaire terminale 5 du conduit 2 vers la portion annulaire intermédiaire 4 en accentuant le pli annulaire 8 et former une fente annulaire 9 de forme cylindrique et d'épaisseur accrue, entre la portion annulaire intermédiaire 4 et la portion annulaire terminale 5 du conduit 2.As illustrated on the figure 7 , this rotary spacer tool 112 is actuated radially outwards to fold the end annular portion 5 of the duct 2 towards the intermediate annular portion 4 by accentuating the annular fold 8 and forming an annular slot 9 of cylindrical shape and increased thickness, between the intermediate annular portion 4 and the terminal annular portion 5 of the conduit 2.

Puis, on extrait l'outil écarteur 112.Then, the spreader tool 112 is extracted.

Comme illustré sur la figure 8, ayant préformé un organe de liaison 10, on engage sa partie cylindrique 12 axialement dans la fente annulaire 9, entre la portion annulaire intermédiaire 4 et la portion annulaire terminale 5 du conduit 2 jusqu'à ce que son plateau 11 vienne en appui sur la face supérieure 104 de la plaque 102.As illustrated on the figure 8 , having preformed a connecting member 10, its cylindrical part 12 is engaged axially in the annular slot 9, between the intermediate annular portion 4 and the portion annular end 5 of conduit 2 until its plate 11 comes to bear on the upper face 104 of plate 102.

Puis, comme illustré sur la figure 9, on engage un outil écarteur rotatif 113 à l'intérieur de la portion annulaire terminale 5 du conduit 2.Then, as shown in figure 9 , a rotary spreading tool 113 is engaged inside the terminal annular portion 5 of the duct 2.

Puis, comme illustré sur la figure 10, on actionne l'outil écarteur 113 radialement vers l'extérieur afin de comprimer, radialement contre la face intérieure du passage 103 de la plaque 101, l'empilement radial constitué par la partie annulaire d'extrémité 6 de la portion axiale principale 3, la portion annulaire intermédiaire 4, la partie annulaire axiale de montage 12 et la portion annulaire terminale 5. Ce faisant, l'écartement entre la portion annulaire intermédiaire 4 et la portion annulaire terminale 5 est réduit et la partie annulaire axiale de montage 12 de l'organe de liaison 10 est prise radialement, de façon étanche, entre ces portions 4 et 5.Then, as shown in figure 10 , the spreader tool 113 is actuated radially outwards in order to compress, radially against the inner face of the passage 103 of the plate 101, the radial stack constituted by the annular end part 6 of the main axial portion 3, the intermediate annular portion 4, the axial annular mounting part 12 and the terminal annular portion 5. In doing so, the spacing between the intermediate annular portion 4 and the terminal annular portion 5 is reduced and the axial annular mounting part 12 of the connecting member 10 is taken radially, in a sealed manner, between these portions 4 and 5.

La face intérieure du passage 103 de la plaque 101 présentant une gorge annulaire 114 en saillie et l'outil écarteur 113 présentant un bossage annulaire 115 radialement en vis-à-vis de la gorge annulaire 114, on forme en même temps les bourrelets annulaires locaux 6a, 4a, 12a et 5a (figure 1).The inner face of the passage 103 of the plate 101 having a projecting annular groove 114 and the spacer tool 113 having an annular boss 115 radially opposite the annular groove 114, the local annular beads are formed at the same time 6a, 4a, 12a and 5a ( figure 1 ).

Il en résulte que le montage est effectué par sertissage.As a result, assembly is carried out by crimping.

Enfin, on extrait l'outil écarteur 113 et on écarte les mors 102 de la plaque 101.Finally, the spreader tool 113 is extracted and the jaws 102 are moved away from the plate 101.

On obtient le dispositif d'étanchéité 1 décrit et illustré sur la figure 1.The sealing device 1 described and illustrated in the figure 1 .

Avantageusement, la machine 100 peut comprendre un dispositif 115 d'amenée d'air chaud afin que la partie cylindrique 12 de l'organe de liaison 120, chauffée, adhère à la portion annulaire intermédiaire 4 et à la portion annulaire terminale 5 lors de l'opération de compression précitée. En outre, cet apport d'air chaud peut aussi être utile pour un chauffage au moins partiel du conduit 2 dans le but de faciliter les opérations de pliage décrites de la partie supérieure 2a du conduit 2.Advantageously, the machine 100 can include a device 115 for supplying hot air so that the cylindrical part 12 of the connecting member 120, heated, adheres to the intermediate annular portion 4 and to the terminal annular portion 5 during the aforementioned compression operation. In addition, this supply of hot air can also be useful for at least partial heating of the duct 2 in order to facilitate the described bending operations of the upper part 2a of the duct 2.

Selon une variante de réalisation illustrée sur la figure 11, un dispositif d'étanchéité 201 comprend un conduit 202 présentant une portion annulaire intermédiaire 204 en vis-à-vis et entourant une partie annulaire d'extrémité 206 d'une portion axiale principale 203 et une portion annulaire terminale 205 en vis-à-vis et entourant cette portion annulaire intermédiaire 204. La portion annulaire intermédiaire 204 et la partie annulaire d'extrémité 206 sont reliées par un premier pli annulaire 207. La portion annulaire intermédiaire 204 et la portion annulaire terminale 205 sont reliées par un second pli annulaire 208. Par conséquent, la portion d'extrémité 206, la portion annulaire intermédiaire 204 et la portion annulaire terminale 205 sont radialement inversées par rapport à la portion d'extrémité 6, la portion annulaire intermédiaire 4 et la portion annulaire terminale 5 du dispositif d'étanchéité 1. La portion intermédiaire 204 est située radialement à l'intérieur de la portion terminale 205 et la portion d'extrémité 206 est située radialement à l'intérieur de la portion intermédiaire 204.According to a variant embodiment illustrated in the figure 11 , a sealing device 201 comprises a conduit 202 having an intermediate annular portion 204 facing each other and surrounding an annular end portion 206 of a main axial portion 203 and an end annular portion 205 facing each other. screw and surrounding this intermediate annular portion 204. The intermediate annular portion 204 and the annular end part 206 are connected by a first annular fold 207. The intermediate annular portion 204 and the end annular portion 205 are connected by a second annular fold 208 Consequently, the end portion 206, the intermediate annular portion 204 and the terminal annular portion 205 are radially inverted with respect to the end portion 6, the intermediate annular portion 4 and the terminal annular portion 5 of the device. sealing 1. The intermediate portion 204 is located radially inside the terminal portion 205 and the end portion 206 is located radially inside the intermediate portion 204.

De façon équivalente au dispositif d'étanchéité 1, la portion annulaire intermédiaire 204 et la portion annulaire terminale 205 aménagent entre elles une fente annulaire axiale de montage 209 de section axiale en forme de U, ouverte axialement à l'opposé du pli annulaire 208. La fente annulaire axiale de montage 209 est ouverte axialement vers l'extérieur, d'un côté, à l'opposé de l'autre extrémité de la portion axiale principale 203. Le pli annulaire 208 forme axialement le fond annulaire de la fente annulaire de montage 209 qui par conséquent est borgne.Equivalently to the sealing device 1, the intermediate annular portion 204 and the terminal annular portion 205 arrange between them an axial annular mounting slot 209 of U-shaped axial section, open axially opposite the annular ply 208. The axial annular mounting slot 209 is open axially outward, on one side, opposite the other end of the main axial portion 203. The annular fold 208 axially forms the annular bottom of the annular mounting slot. assembly 209 which is therefore blind.

De façon équivalente au dispositif d'étanchéité 1, le dispositif d'étanchéité 201 comprend également un organe de liaison 210 qui présente un plateau radial 211 et, en son milieu et autour d'une ouverture traversante, une partie annulaire axiale de montage 212 qui est en saillie d'un côté du plateau radial 211 et qui est engagée axialement dans la fente annulaire axiale de montage 209 entre la portion annulaire intermédiaire 204 et la portion annulaire terminale 205. Les faces radialement opposées de la partie annulaire axiale de montage 212 de l'organe de liaison 210 sont en regard respectivement de la portion annulaire intermédiaire 204 et de la portion annulaire terminale 205.Equivalently to the sealing device 1, the sealing device 201 also comprises a connecting member 210 which has a radial plate 211 and, in its middle and around a through opening, an axial annular mounting part 212 which projects from one side of the radial plate 211 and which is engaged axially in the axial annular mounting slot 209 between the intermediate annular portion 204 and the terminal annular portion 205. The radially opposite faces of the axial annular part of assembly 212 of the connecting member 210 are respectively facing the intermediate annular portion 204 and the terminal annular portion 205.

Le pli annulaire de l'organe de liaison 10, reliant le plateau radial 211 et la partie annulaire axiale de montage 212, est adjacent au pli annulaire 207 du conduit 202 et s'en éloigne. Le bord annulaire d'extrémité de la partie annulaire axiale de montage 212 est adjacent au pli annulaire 208.The annular fold of the connecting member 10, connecting the radial plate 211 and the axial annular mounting part 212, is adjacent to the annular fold 207 of the duct 202 and moves away from it. The end annular edge of the axial mounting annular portion 212 is adjacent to the annular fold 208.

La partie annulaire axiale de montage 212 de l'organe de liaison 10 est prise ou enserrée radialement par compression radiale d'au moins une zone annulaire, dans la fente annulaire de montage 209 entre la portion annulaire intermédiaire 204 et la portion annulaire terminale 205 du conduit 202, de sorte à assurer le montage.The axial annular mounting part 212 of the connecting member 10 is taken or clamped radially by radial compression of at least one annular zone, in the annular mounting slot 209 between the intermediate annular portion 204 and the end annular portion 205 of the conduit 202, so as to ensure assembly.

Avantageusement, la compression radiale de la partie annulaire axiale de montage 212 entre la portion annulaire intermédiaire 204 et la portion annulaire terminale 205 permet d'obtenir une liaison étanche.Advantageously, the radial compression of the axial annular mounting part 212 between the intermediate annular portion 204 and the terminal annular portion 205 makes it possible to obtain a tight connection.

La portion annulaire intermédiaire 204 et la portion annulaire terminale 205 peuvent être réalisées par pliage en mettant en œuvre des outils radialement inversés par rapport à ceux mis en œuvre pour l'obtention de la portion annulaire intermédiaire 4 et de la portion annulaire terminale 5 du dispositif d'étanchéité 1. Puis, comme décrit précédemment, l'organe de liaison 210 est mis en place et la partie annulaire d'extrémité 206, la portion annulaire intermédiaire 204 et de la portion annulaire terminale 205 et la partie annulaire axiale de montage 212 sont radialement comprimées en formant par exemple des bourrelets engagés les uns dans les autres.The intermediate annular portion 204 and the terminal annular portion 205 can be produced by bending by implementing tools that are radially reversed with respect to those implemented to obtain the intermediate annular portion 4 and the terminal annular portion 5 of the device sealing 1. Then, as described above, the connecting member 210 is put in place and the annular end part 206, the intermediate annular portion 204 and the end annular portion 205 and the axial annular mounting part 212 are radially compressed by forming, for example, beads engaged in each other.

Par ailleurs, il est avantageux que la portion annulaire terminale 205 soit prolongée par une collerette périphérique radiale 205a s'étendant vers l'extérieur en vis-à-vis de la partie centrale de l'organe de liaison 210 et comprenant un pli annulaire arrondi 205b et éventuellement une partie radiale périphérique 205c, évitant ainsi un endommagement de l'organe de liaison 210.Furthermore, it is advantageous for the terminal annular portion 205 to be extended by a radial peripheral collar 205a extending outwards opposite the central part of the connecting member 210 and comprising a rounded annular fold 205b and possibly a peripheral radial part 205c, thus avoiding damage to the connecting member 210.

Sur la figure 12 est illustré un dispositif d'étanchéité 1A qui constitue une variante de réalisation du dispositif d'étanchéité 1 de la figure 1, dans laquelle le conduit 2 comprend deux parties 20A et 20B assemblées l'une à l'autre par soudure.On the figure 12 illustrated is a sealing device 1A which constitutes a variant embodiment of the sealing device 1 of the figure 1 , wherein the conduit 2 comprises two parts 20A and 20B assembled to each other by welding.

La première partie 20A comprend une première portion 21a de la portion axiale principale 3, partant du pli 7 entre la partie annulaire d'extrémité 6 et la portion annulaire intermédiaire 4, comprend la portion annulaire intermédiaire 4 reliée à la partie annulaire d'extrémité 6 par le pli annulaire 7 et comprend la portion annulaire terminale 5 reliée à la portion intermédiaire 4 par le pli annulaire 8.The first part 20A comprises a first portion 21a of the main axial portion 3, starting from the fold 7 between the annular end part 6 and the intermediate annular portion 4, comprises the intermediate annular portion 4 connected to the annular end part 6 by the annular ply 7 and comprises the terminal annular portion 5 connected to the intermediate portion 4 by the annular ply 8.

La deuxième partie 20B comprend le reste de la portion axiale principale 3, à savoir une deuxième portion d'extrémité 21b de la portion axiale principale 3, cette deuxième portion d'extrémité 21b étant constituée par un tube cylindrique.The second part 20B comprises the rest of the main axial portion 3, namely a second end portion 21b of the main axial portion 3, this second end portion 21b being constituted by a cylindrical tube.

Les parties 2A et 2B sont assemblées par un cordon annulaire de soudure 22, étanche, qui relie les bords adjacents de la première portion 21a et de la deuxième portion 21b de la portion axiale principale 3.The parts 2A and 2B are assembled by an annular sealing bead 22, which connects the adjacent edges of the first portion 21a and of the second portion 21b of the main axial portion 3.

Avantageusement, la première portion 21a de la portion axiale principale 3 inclut la partie annulaire d'extrémité 6 située en vis-à-vis de la portion annulaire intermédiaire 4, le cordon de soudure 22 étant situé par exemple à distance au-delà du pli annulaire 8 entre la portion annulaire intermédiaire 4 et la portion annulaire terminale 5, par exemple à faible distance.Advantageously, the first portion 21a of the main axial portion 3 includes the annular end part 6 located opposite the intermediate annular portion 4, the weld bead 22 being located for example at a distance beyond the fold annular 8 between the intermediate annular portion 4 and the terminal annular portion 5, for example at a short distance.

Selon une variante de réalisation, les bords adjacents de la première portion 21a et de la deuxième portion 21b de la portion axiale principale 3 pourraient être engagés l'un dans l'autre, puis soudés.According to a variant embodiment, the adjacent edges of the first portion 21a and of the second portion 21b of the main axial portion 3 could be engaged one inside the other, then welded.

Ainsi, la partie 20A est d'une pièce et peut être préformée, séparément de la partie 20B, puis assemblée à la partie 20B par le cordon de soudure 22.Thus, part 20A is in one piece and can be preformed, separately from part 20B, then assembled to part 20B by weld bead 22.

Par exemple, la partie 20A peut être obtenue à partir d'une plaque en forme de disque annulaire, à laquelle on applique une ou des opérations d'emboutissage (pliage) ou de repoussage de la matière, de sorte à obtenir une préforme 23 illustrée sur la figure 13, dans laquelle les portions 4, 5 et 21a sont substantiellement cylindriques. Les portions 4 et 5 forment entre elles une fente annulaire de montage 9 agrandie.For example, the part 20A can be obtained from a plate in the form of an annular disc, to which one or more operations of stamping (folding) or spinning of the material, of so as to obtain a preform 23 illustrated on the figure 13 , wherein the portions 4, 5 and 21a are substantially cylindrical. The portions 4 and 5 form between them an enlarged annular mounting slot 9.

Puis, comme illustré sur la figure 14, on aboute axialement la première portion 21a et la deuxième portion 21b et on réalise le cordon annulaire de soudure 22.Then, as shown in figure 14 , the first portion 21a and the second portion 21b are abutted axially and the annular weld bead 22 is produced.

Puis, on engage la partie annulaire axiale de montage 12 de l'organe de liaison 10 dans la fente annulaire de montage 9 de la préforme 23 entre la portion annulaire intermédiaire 4 et la portion annulaire terminale 5.Then, the axial annular mounting part 12 of the connecting member 10 is engaged in the annular mounting slot 9 of the preform 23 between the intermediate annular portion 4 and the terminal annular portion 5.

Puis, comme décrit précédemment, à l'aide d'un outil rotatif interne de compression et d'un mors externe, ou inversement, on réalise une opération de compression radiale de sorte à former les bourrelets annulaires locaux 6a, 4a, 12a et 5a et à comprimer de façon étanche la partie annulaire axiale de montage 12 de l'organe de liaison 10 dans la fente annulaire de montage 9 entre la portion annulaire intermédiaire 4 et la portion annulaire terminale 5, afin d'obtenir le dispositif d'étanchéité 1A.Then, as described above, using an internal rotary compression tool and an external jaw, or vice versa, a radial compression operation is carried out so as to form the local annular beads 6a, 4a, 12a and 5a and in sealingly compressing the axial annular mounting part 12 of the connecting member 10 in the annular mounting slot 9 between the intermediate annular portion 4 and the terminal annular portion 5, in order to obtain the sealing device 1A .

Selon une variante de réalisation, l'organe de liaison 10 pourrait être assemblé par sertissage à la préforme 23 de la partie 20A, puis les parties 20A et 20B pourraient être assemblées grâce au cordon annulaire de soudure 22.According to a variant embodiment, the connecting member 10 could be assembled by crimping to the preform 23 of the part 20A, then the parts 20A and 20B could be assembled using the annular weld bead 22.

Les dispositions décrites ci-dessus en référence aux figures 12, 13 et 14 pourraient être aussi appliquées de façon équivalente au dispositif d'étanchéité 201 décrit en référence à la figure 11, la portion axiale principale 203 étant divisée en deux parties reliées par un cordon annulaire de soudure.The provisions described above with reference to the figure 12 , 13 and 14 could also be applied in an equivalent manner to the sealing device 201 described with reference to the figure 11 , the main axial portion 203 being divided into two parts connected by an annular weld bead.

Sur la figure 15 est illustré un dispositif d'étanchéité 1B qui constitue une variante de réalisation du dispositif d'étanchéité 1 de la figure 1, dans laquelle le conduit 2 comprend deux parties 30A et 30B assemblées l'une à l'autre.On the figure 15 is illustrated a sealing device 1B which constitutes a variant embodiment of the sealing device 1 of the figure 1 , wherein the conduit 2 comprises two parts 30A and 30B assembled to each other.

La deuxième partie 30B comprend la portion axiale principale 3, incluant la partie annulaire d'extrémité 6.The second part 30B comprises the main axial portion 3, including the annular end part 6.

La première partie 30A comprend la portion intermédiaire 4 et la portion terminale 5, reliées par le pli 8 et formant entre elles la fente annulaire de montage 9 dans laquelle la portion annulaire axiale de montage 12 de l'organe de liaison 10 est engagée et prise ou enserrée.The first part 30A comprises the intermediate portion 4 and the end portion 5, connected by the fold 8 and forming between them the annular mounting slot 9 in which the axial annular mounting portion 12 of the connecting member 10 is engaged and taken or enclosed.

La partie 30A comprend en outre une portion annulaire complémentaire 31 qui est reliée à la portion intermédiaire 4 par un pli annulaire 32. La portion intermédiaire 4 et la portion complémentaire 31 forment entre elles une fente annulaire de montage 33, ouverte axialement à l'opposé de la fente annulaire de montage 9.The part 30A further comprises a complementary annular portion 31 which is connected to the intermediate portion 4 by an annular fold 32. The intermediate portion 4 and the complementary portion 31 form between them an annular mounting slot 33, open axially opposite of the annular mounting slot 9.

La partie annulaire d'extrémité 6 de la portion axiale principale 3 est engagée dans la fente annulaire de montage 33, de sorte que la portion complémentaire 31 entoure la partie d'extrémité 6 de la portion axiale principale 3 et que le pli annulaire 32 contourne le bord d'extrémité de la partie d'extrémité 6 de la portion axiale principale 3.The annular end part 6 of the main axial portion 3 is engaged in the annular assembly slot 33, so that the complementary portion 31 surrounds the end part 6 of the main axial portion 3 and the annular fold 32 circumvents the end edge of the end part 6 of the main axial portion 3.

La partie annulaire d'extrémité 6 de la portion axiale principale 3 est prise ou enserrée, par compression radiale, dans la fente annulaire de montage 33 aménagée entre la portion annulaire intermédiaire 4 et la portion complémentaire 31.The annular end part 6 of the main axial portion 3 is taken or clamped, by radial compression, in the annular mounting slot 33 provided between the intermediate annular portion 4 and the complementary portion 31.

La position de l'extrémité annulaire de la portion complémentaire 31 correspond, axialement, sensiblement à la position du pli annulaire 8.The position of the annular end of the complementary portion 31 corresponds, axially, substantially to the position of the annular fold 8.

En correspondance avec ceux des portions annulaires 4, 5, 6 et 12, la portion complémentaire 31 présente un bourrelet 31a.In correspondence with those of the annular portions 4, 5, 6 and 12, the complementary portion 31 has a bead 31a.

La partie 30A peut être préformée, séparément de la partie 30B, puis assemblée par sertissage à la partie 30B en même temps que l'organe de liaison 10.Part 30A can be preformed, separately from part 30B, then assembled by crimping to part 30B at the same time as connecting member 10.

Par exemple, la partie 30A est d'une seule pièce et peut être obtenue à partir d'une plaque en forme de disque annulaire, à laquelle on applique une ou des opérations d'emboutissage (pliage) ou de repoussage de la matière, de sorte à obtenir une préforme 34 illustrée sur la figure 16, dans laquelle les portions 4, 5 et 31 sont substantiellement cylindriques. Les portions 4 et 5 forment entre elles une fente annulaire de montage 9 agrandie et les portions 4 et 31 forment entre elles une fente annulaire de montage 33 agrandie.For example, the part 30A is in one piece and can be obtained from a plate in the form of an annular disc, to which one or more operations of stamping (folding) or embossing of the material, of so as to obtain a preform 34 illustrated on the figure 16 , wherein the portions 4, 5 and 31 are substantially cylindrical. Portions 4 and 5 together form an enlarged annular mounting slot 9 and the portions 4 and 31 form between them an enlarged annular mounting slot 33.

Puis, comme illustré sur la figure 17, on engage la partie d'extrémité 6 de la portion axiale principale 3 constituant la partie 30B dans la fente annulaire de montage 33 de la préforme 34 et on engage la portion annulaire 12 de l'organe de liaison 10 dans la fente annulaire de montage 9 de la préforme 34.Then, as shown in figure 17 , the end part 6 of the main axial portion 3 constituting the part 30B is engaged in the annular mounting slot 33 of the preform 34 and the annular portion 12 of the connecting member 10 is engaged in the annular mounting slot 9 of preform 34.

Puis, comme décrit précédemment, à l'aide d'un outil rotatif interne de compression et d'un mors externe, ou inversement, on réalise une opération de compression radiale de sorte à former les bourrelets annulaires locaux 4a, 5a, 6a, 12a et 31a et à comprimer la partie annulaire axiale de montage 12 de l'organe de liaison 10 dans la fente annulaire de montage 9 entre la portion annulaire intermédiaire 4 et la portion annulaire terminale 5 et la partie annulaire d'extrémité 6 entre la portion annulaire intermédiaire 4 et la portion annulaire complémentaire 31, afin d'obtenir par sertissage le dispositif d'étanchéité 1B.Then, as described above, using an internal rotary compression tool and an external jaw, or vice versa, a radial compression operation is carried out so as to form the local annular beads 4a, 5a, 6a, 12a and 31a and compressing the axial annular mounting part 12 of the connecting member 10 in the annular mounting slot 9 between the intermediate annular portion 4 and the end annular portion 5 and the end annular part 6 between the annular portion intermediate 4 and the complementary annular portion 31, in order to obtain the sealing device 1B by crimping.

Les dispositions décrites ci-dessus en référence aux figures 15, 16 et 17 pourraient être aussi appliquées de façon équivalente au dispositif d'étanchéité 201 décrit en référence à la figure 11, de sorte à obtenir une disposition inversée radialement. Dans ce cas, les portions annulaires 4 et 5 aménageant la fente axiale de montage 209, sont à l'extérieur de la partie annulaire d'extrémité 6 de la portion axiale principale 3 et la portion annulaire complémentaire 31 est à l'intérieur de la partie annulaire d'extrémité 6 de la portion axiale principale 3. Optionnellement, la partie annulaire terminale 205 peut être pourvue d'une collerette radiale en saillie vers l'extérieur, équivalente à la collerette 205a.The provisions described above with reference to the figure 15 , 16 and 17 could also be applied in an equivalent manner to the sealing device 201 described with reference to the figure 11 , so as to obtain a radially inverted arrangement. In this case, the annular portions 4 and 5 arranging the axial mounting slot 209 are outside the annular end part 6 of the main axial portion 3 and the complementary annular portion 31 is inside the annular end part 6 of main axial portion 3. Optionally, end annular part 205 can be provided with a radial flange projecting outwards, equivalent to flange 205a.

Selon une variante de réalisation, la partie annulaire complémentaire 31 de la partie 30A pourrait être située entre la portion annulaire intermédiaire 4 et la partie d'extrémité 6 de la portion axiale principale 3 constituant la partie 30B.According to a variant embodiment, the complementary annular part 31 of the part 30A could be located between the intermediate annular portion 4 and the end part 6 of the main axial portion 3 constituting the part 30B.

La portion annulaire complémentaire 31 de la partie 30A pourrait être soudée à la portion axiale principale 3 constituant la partie 30B par un cordon annulaire de soudure prévu à une extrémité de la portion annulaire complémentaire 31 ou des cordons annulaires de soudure prévus aux extrémités de la portion annulaire complémentaire 31. Dans un autre cas, la partie 30A pourrait être rapportée sur la partie 30B sans soudure.The complementary annular portion 31 of the part 30A could be welded to the main axial portion 3 constituting the part 30B by an annular weld bead provided at one end of complementary annular portion 31 or annular weld beads provided at the ends of complementary annular portion 31. In another case, part 30A could be attached to part 30B without welding.

Sur la figure 18 est illustré un dispositif d'étanchéité 1C qui constitue une variante de réalisation du dispositif d'étanchéité 201 de la figure 11, dans laquelle le conduit 2 comprend deux parties 40A et 40B assemblées l'une à l'autre.On the figure 18 illustrated is a sealing device 1C which constitutes an alternative embodiment of the sealing device 201 of the figure 11 , wherein the conduit 2 comprises two parts 40A and 40B assembled to each other.

La deuxième partie 40B comprend la portion axiale principale 203, incluant la partie annulaire d'extrémité 206.The second part 40B comprises the main axial portion 203, including the annular end part 206.

La première partie 30A comprend la portion intermédiaire 204 et la portion terminale 205, reliées par le pli 208 et formant entre elles la fente annulaire de montage 209 dans laquelle la portion annulaire axiale de montage 212 de l'organe de liaison 210 est engagée et prise par sertissage lors de la compression radiale des portions 4, 5 et 6 et 212.The first part 30A comprises the intermediate portion 204 and the end portion 205, connected by the fold 208 and forming between them the annular mounting slot 209 in which the axial annular mounting portion 212 of the connecting member 210 is engaged and taken by crimping during the radial compression of portions 4, 5 and 6 and 212.

La première partie 30A peut être préformée puis assemblée par sertissage à la partie annulaire d'extrémité 206 de la portion axiale principale 203, en même temps que la portion annulaire axiale de montage 212 de l'organe de liaison 210.The first part 30A can be preformed and then assembled by crimping to the annular end part 206 of the main axial portion 203, at the same time as the axial annular mounting portion 212 of the connecting member 210.

Optionnellement, la portion annulaire intermédiaire 204 de la partie 40A pourrait être soudée à la portion axiale principale 203 constituant la partie 40B par un cordon annulaire de soudure 213 prévu à une extrémité de la portion annulaire 204 ou des cordons annulaires de soudure prévus aux extrémités de la portion annulaire intermédiaire 204. Dans un autre cas, la partie 40A pourrait être rapportée sur la partie 40B sans soudure.Optionally, the intermediate annular portion 204 of the part 40A could be welded to the main axial portion 203 constituting the part 40B by an annular weld bead 213 provided at one end of the annular portion 204 or annular weld beads provided at the ends of the intermediate annular portion 204. In another case, part 40A could be attached to part 40B without welding.

Les dispositions décrites ci-dessus en référence à la figure 18 pourraient être aussi appliquées de façon équivalente au dispositif d'étanchéité 1 décrit en référence à la figure 1. Dans ce cas, la première partie 30A serait à l'intérieur de la partie annulaire d'extrémité 206 de la portion axiale principale 203.The provisions described above with reference to the figure 18 could also be applied in an equivalent manner to the sealing device 1 described with reference to the figure 1 . In this case, the first part 30A would be inside the annular end part 206 of the main axial portion 203.

Claims (5)

  1. A method for manufacturing a sealing device comprising a duct (2; 202) and a link member (10; 210) comprising a radial flange plate (11; 211) and an axial annular mounting portion (12; 212), the method comprising:
    a step of folding of an end annular part (2a) of said duct (2; 202), to obtain an axial annular mounting slit (9) that is open axially outward, between an intermediate annular portion (4; 204) linked to a main axial portion (3; 203) by a first annular fold (7; 207) and a terminal annular portion (5; 205) linked to the intermediate annular portion (4; 204) by a second annular fold (8; 208);
    a step of axial engagement of the axial annular mounting portion (12; 212) of the link member in said annular mounting slit (9); and
    a step of radial compression of said axial annular mounting portion (12; 212) of the link member (10; 210), over at least one annular zone, between said intermediate annular portion (4; 204) and said terminal annular portion (5; 205) of the duct (2; 202),
  2. The method according to claim 1, comprising a heating step during the compression step, to obtain a bonding of said axial annular mounting portion (12) against said intermediate annular portion (4) and of the terminal annular portion (5).
  3. The method according to claim 1 or 2, comprising a step of at least partial heating of the duct during the folding step.
  4. A method for manufacturing a sealing device comprising a duct (2; 202) and a link member (10; 210) comprising a radial flange plate (11; 211) and an axial annular mounting portion (12; 212), the method comprising:
    a step of production of a preform (23; 34) comprising at least one intermediate annular portion (4; 204) and one terminal annular portion (5; 205) linked by an annular fold and forming between them an annular mounting slit (9;209);
    a step of mounting of said preform (23; 34) on an end annular part of said duct (2; 202), in a position such that said intermediate annular portion (4; 204) is situated between said end annular part of said duct and said terminal annular portion (5; 205), and of mounting of said axial annular mounting portion (12; 212) of said link member (10; 210) in said annular mounting slit (9; 209); and
    a step of radial compression, over at least one annular zone, of said axial annular mounting portion (12; 212) of the link member (10; 210), of said intermediate annular portion (4; 204), of said terminal annular portion (5; 205) of the duct (2; 202) and said end annular part of said duct, said axial annular mounting portion (12; 212) of the link member being compressed between said intermediate annular portion (4; 204) and the terminal annular portion (5; 205) of the duct in order to obtain the mounting and to obtain a seal-tight link between the duct and the link member .
  5. The method according to claim 4, wherein the step of production of a preform comprises the production of a complementary annular portion (31) linked to said intermediate annular portion (4; 204), delimiting between them an annular mounting slit (33), the mounting step comprising the mounting of said end annular part of said duct in this annular mounting slit and the step of radial compression comprises the compression of said complementary annular portion (31).
EP21183892.5A 2017-10-10 2018-10-09 Production process of a sealing device for building, comprising a conduit and a connecting member Active EP3910127B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR1759462A FR3072107B1 (en) 2017-10-10 2017-10-10 WATERPROOFING DEVICE FOR THE BUILDING, INCLUDING A DUCT AND A CONNECTING BODY
EP18808415.6A EP3695071B1 (en) 2017-10-10 2018-10-09 Sealing device for construction, comprising a duct and connection member
PCT/FR2018/052485 WO2019073161A1 (en) 2017-10-10 2018-10-09 Sealing device for construction, comprising a duct and connection member

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP18808415.6A Division-Into EP3695071B1 (en) 2017-10-10 2018-10-09 Sealing device for construction, comprising a duct and connection member
EP18808415.6A Division EP3695071B1 (en) 2017-10-10 2018-10-09 Sealing device for construction, comprising a duct and connection member

Publications (2)

Publication Number Publication Date
EP3910127A1 EP3910127A1 (en) 2021-11-17
EP3910127B1 true EP3910127B1 (en) 2022-11-23

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EP21183892.5A Active EP3910127B1 (en) 2017-10-10 2018-10-09 Production process of a sealing device for building, comprising a conduit and a connecting member
EP18808415.6A Active EP3695071B1 (en) 2017-10-10 2018-10-09 Sealing device for construction, comprising a duct and connection member

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EP18808415.6A Active EP3695071B1 (en) 2017-10-10 2018-10-09 Sealing device for construction, comprising a duct and connection member

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US (1) US11248378B2 (en)
EP (2) EP3910127B1 (en)
CA (1) CA3078557A1 (en)
ES (1) ES2936228T3 (en)
FR (1) FR3072107B1 (en)
WO (1) WO2019073161A1 (en)

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* Cited by examiner, † Cited by third party
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Also Published As

Publication number Publication date
EP3695071B1 (en) 2022-02-16
FR3072107A1 (en) 2019-04-12
US20210198895A1 (en) 2021-07-01
ES2936228T3 (en) 2023-03-15
FR3072107B1 (en) 2021-02-12
CA3078557A1 (en) 2019-04-18
US11248378B2 (en) 2022-02-15
EP3910127A1 (en) 2021-11-17
EP3695071A1 (en) 2020-08-19
WO2019073161A1 (en) 2019-04-18

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