FR2548587A1 - Inflatable article constituted by at least two plastic sheets joined in a sealed manner with at least one mechanical joint reinforcement - Google Patents

Inflatable article constituted by at least two plastic sheets joined in a sealed manner with at least one mechanical joint reinforcement Download PDF

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Publication number
FR2548587A1
FR2548587A1 FR8311080A FR8311080A FR2548587A1 FR 2548587 A1 FR2548587 A1 FR 2548587A1 FR 8311080 A FR8311080 A FR 8311080A FR 8311080 A FR8311080 A FR 8311080A FR 2548587 A1 FR2548587 A1 FR 2548587A1
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FR
France
Prior art keywords
sheets
inflatable
assembly
reinforcement
longitudinal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
FR8311080A
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French (fr)
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FR2548587B3 (en
Inventor
Gerard Marbach
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zodiac European Pools SAS
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Zodiac European Pools SAS
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Filing date
Publication date
Application filed by Zodiac European Pools SAS filed Critical Zodiac European Pools SAS
Priority to FR8311080A priority Critical patent/FR2548587B3/en
Publication of FR2548587A1 publication Critical patent/FR2548587A1/en
Application granted granted Critical
Publication of FR2548587B3 publication Critical patent/FR2548587B3/en
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B7/00—Collapsible, foldable, inflatable or like vessels
    • B63B7/06—Collapsible, foldable, inflatable or like vessels having parts of non-rigid material
    • B63B7/08—Inflatable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/36—Bending and joining, e.g. for making hollow articles
    • B29C53/38—Bending and joining, e.g. for making hollow articles by bending sheets or strips at right angles to the longitudinal axis of the article being formed and joining the edges
    • B29C53/385—Bending and joining, e.g. for making hollow articles by bending sheets or strips at right angles to the longitudinal axis of the article being formed and joining the edges using several sheets to form the circumference
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/04—Dielectric heating, e.g. high-frequency welding, i.e. radio frequency welding of plastic materials having dielectric properties, e.g. PVC
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/50—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like
    • B29C65/5042—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like covering both elements to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/13—Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
    • B29C66/133—Fin-type joints, the parts to be joined being flexible
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B29C66/432—Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B29C66/432—Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms
    • B29C66/4324—Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms for making closed loops, e.g. belts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D22/00—Producing hollow articles
    • B29D22/02—Inflatable articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/36—Bending and joining, e.g. for making hollow articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2022/00—Hollow articles
    • B29L2022/02—Inflatable articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
    • B29L2031/3067—Ships
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/709—Articles shaped in a closed loop, e.g. conveyor belts
    • B29L2031/7096—Rings or ring-like articles
    • B29L2031/7102—Toroidal articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B34/00—Vessels specially adapted for water sports or leisure; Body-supporting devices specially adapted for water sports or leisure

Abstract

In an inflatable article, such as a boat, raft or floating platform, constituted by at least two sheets 1, 2 joined together in a sealed manner along their peripheral edge, this joint forming a laterally projecting lip 3, 4, provision is made, at least in a longitudinal portion of the area of the peripheral joint, for an internal reinforcement strip 5 joined at 6 along its longitudinal edges respectively with both sheets on either side of the aforementioned peripheral joint, by virtue of which the forces to which the two sheets are subjected are taken up by the reinforcement strip and the aforementioned peripheral joint has only to provide a sealing function.

Description

Objet gonflable constitué par au moins deux feuilles plastiques assemblées de façon étanche avec au moins un renfort mécanique d'assemblage.Inflatable object consisting of at least two plastic sheets assembled in leaktight manner with at least one mechanical assembly reinforcement.

La présente invention est relative aux moyens d'assem blage de feuilles plastiques armées ou non de fils textiles et elle s'applique, plus particulièrement mais non exclusivement, aux assemblages que l'on rencontre par exemple dans les bateaux de loisir et de plage, les radeaux de sauvetage, les plate-formes flottantes, etc. The present invention relates to means for assembling plastic sheets reinforced or not with textile threads and it applies, more particularly but not exclusively, to assemblies which are encountered for example in leisure and beach boats, life rafts, floating platforms, etc.

Un premier mode d'assemblage universellement utilisé pour réaliser ces assemblages de feuilles consiste à lier, de façon physico-chimique, l'un à ltautre les bords superposés des deux feuilles, le plan de la liaison étant dans le plan des feuilles. l'assemblage ainsi obtenu, tant à partir de feuilles simples que de feuilles armées de fils textiles, est de bonne qualité et mécaniquement solide car le plan de liaison se trouve en tension selon le plan des feuilles. A first assembly method universally used to produce these sheet assemblies consists in bonding, in a physicochemical manner, the overlapping edges of the two sheets to one another, the plane of the connection being in the plane of the sheets. the assembly thus obtained, both from single sheets as from sheets reinforced with textile threads, is of good quality and mechanically solid because the connection plane is in tension according to the plane of the sheets.

Un autre mode d'assemblage consiste à lier le long de leur bord deux feuilles superposées : une fois les deux feuilles mises dans le prolongement l'une de l'autre, la zone de liaison fait alors saillie perpendiculairement aux feuilles. Ce dernier mode d'assemblage est très utilisé dans la confection des corps gonflables des objets mentionnés ci-dessus de par sa simplicité de mise en oeuvre et de la possibilité de réaliser 11 objet à plat à partir d'empilements de feuilles plastiques.Cependant, ce dernier mode d'assemblage présente des caractéristiques de tenue mécanique, notamment sous les efforts alternés, moindres que pour le premier mode d'assemblage et il est inadapté pour des assemblages de feuilles armées dans lesquels les caractéristiques mécaniques de la liaison tombent alors à une fraction réduite de la résistance propre de la feuille armée. Another mode of assembly consists in tying along their edge two superimposed sheets: once the two sheets put in the prolongation one of the other, the connection zone projects then perpendicularly to the sheets. This latter method of assembly is widely used in the manufacture of inflatable bodies for the objects mentioned above because of its simplicity of implementation and the possibility of producing 11 objects flat from stacks of plastic sheets. this latter mode of assembly has mechanical properties, in particular under alternating forces, less than for the first mode of assembly and it is unsuitable for assemblies of reinforced sheets in which the mechanical characteristics of the connection then drop to a reduced fraction of the armed leaf's own resistance.

l'invention a pour but de réaliser un nouveau type d'assemblage réunissant les avantages des deux types d'assemblage antérieurs ci-dessus présentés, mais remédiant simultanément à leurs inconvénients respectifs de manière à permettre la réalisation de liaisons, notamment de soudures, qui soient mécaniquement résistantes tout en étant simples, faciles, rapides et peu conteuses. the invention aims to achieve a new type of assembly combining the advantages of the two types of previous assembly presented above, but simultaneously overcoming their respective drawbacks so as to allow the production of connections, in particular welds, which are mechanically resistant while being simple, easy, fast and not very storytelling.

A ces fins, dans un objet gonflable constitué par au moins deux feuilles assemblées l'une à l'autre de façon étanche le long de leur bord périphérique, on prévoit, conformément à l'invention, que, au moins dans une portion longitudinale de la zone de l'assemblage périphérique, une bande intérieure de renfort (assemblée le long de ses bords longitudinaux respectivement avec l'une et l'autre feuille de part et d'autre du susdit assemblage périphéri que). For these purposes, in an inflatable object consisting of at least two sheets assembled to one another in a sealed manner along their peripheral edge, provision is made, in accordance with the invention, that, at least in a longitudinal portion of the zone of the peripheral assembly, an inner reinforcing strip (assembled along its longitudinal edges respectively with one and the other sheet on either side of the above-mentioned peripheral assembly).

Grâce à cet agencement, les efforts auxquels sont soumises les deux feuilles sont repris par la bande de renfort et le susdit assemblage périphérique n'a à assurer qu'une fonction d'étanchéité. Cette combinaison des deux types d'assemblage, l'un ayant une fonction de transmission mécanique des efforts, l'autre une fonction d'étanchéité, est notamment très adaptée à la réalisation d'objets gonflables à partir de feuilles plastiques armées de fils textiles. Thanks to this arrangement, the forces to which the two sheets are subjected are taken up by the reinforcing strip and the above-mentioned peripheral assembly only has to provide a sealing function. This combination of the two types of assembly, one having a mechanical force transmission function, the other a sealing function, is in particular very suitable for the production of inflatable objects from plastic sheets reinforced with textile threads. .

Dans le cas où 11 objet gonflable comporte un boudin gonflable extérieur, on peut prévoir que la bande intérieure de renfort est de forme rectangulaire et est soudée sensiblement orthogonalement à l'axe longitudinal de l'objet et sensiblement symétriquement par rapport à cet axe, dans la zone à rayon de courbure minimum du boudin gonflable, au droit de 11 assemblage intérieur de ce boudin. In the case where the inflatable object comprises an external inflatable tube, it can be provided that the internal reinforcement strip is of rectangular shape and is welded substantially orthogonally to the longitudinal axis of the object and substantially symmetrically with respect to this axis, in the zone with minimum radius of curvature of the inflatable tube, in line with the interior assembly of this tube.

Toujours dans le cas où l'objet gonflable comporte un boudin gonflable extérieur, on peut également prévoir que le renfort soit placé dans la région externe du boudin gonflable et que ce renfort soit constitué de quatre bandes placées symétriquement par rapport au grand axe longitudi- nal de l'anneau, deux bandes longitudinales de forme rectan- gulaire étant placées latéralement et deux bandes de longueur réduite et de forme spécifique assurant un reeousrre- ment par rapport aux bandes longitudinales et étant placées en avant de celles-ci de manière à laisser un dégagement pour l'outillage de soudure tt;ilisé pour leur pose. Still in the case where the inflatable object includes an external inflatable tube, it can also be provided that the reinforcement is placed in the external region of the inflatable tube and that this reinforcement consists of four bands placed symmetrically with respect to the major longitudinal axis. of the ring, two longitudinal bands of rectangular shape being placed laterally and two bands of reduced length and of specific shape ensuring re-joining with respect to the longitudinal bands and being placed in front of them so as to leave a clearance for all welding tools; it is easy to install.

flans une application avantageuse, le boudin gonflable est réalisé à partir d'au moins une feuille plastique étan- che soudable armée, au moins localement, de fils textiles disposés sur ou à l'intérieur de cette feuille. In an advantageous application, the inflatable tube is produced from at least one weldable waterproof plastic sheet reinforced, at least locally, with textile threads placed on or inside this sheet.

L'invention sera mieux comprise à la lecture de la description détaillée qui suit de certains modes de réalisation donnés uniquement à titre d'exemple illustratif sans caractère limitatif ; dans cette description, on se réfère aux dessins annexés sur lesquels - la figure 1 représente en plan une embarcation pneumati
que réalisée par superposition de deux feuilles assez
blées périphérîquement par soudure avec un renfort local,
conformément à l'invention - la figure 2a est une vue en coupe transversale selon la
ligne II-II de la figure 1 - la figure 2b est une vue selon la flèche A de la figure
2a - la figure 3 représente en perspective une embarcation
pneumatique réalisée avec un autre type d'assemblage avec
renfort, conformément à l'invention - la figure 4 est une coupe dans un plan horizontal de
l'embarcation de la figure 3, le plan de coupe passant
par l'assemblage des deux feuilles constitutives 3 - la figure 5 est une coupe selon la ligne V-V de la figure
4 ; et - la figure 6 représente l'agencement des renforts mncaniS
ques vus selon la flèche B de la figure 4.The invention will be better understood on reading the detailed description which follows of certain embodiments given solely by way of illustrative example without limitation; in this description, reference is made to the appended drawings in which - Figure 1 shows in plan a pneumatic boat
that achieved by superimposing two sheets enough
peripherally wound by welding with local reinforcement,
according to the invention - Figure 2a is a cross-sectional view along the
line II-II of figure 1 - figure 2b is a view along arrow A of figure
2a - Figure 3 shows in perspective a boat
pneumatic made with another type of assembly with
reinforcement, according to the invention - Figure 4 is a section in a horizontal plane of
the boat of Figure 3, the sectional plane passing
by assembling the two constituent sheets 3 - Figure 5 is a section along the line VV of the figure
4; and - Figure 6 shows the arrangement of the mncaniS reinforcements
ques seen according to arrow B of figure 4.

Sur les figures 1, Sa et 2b, le corps de l'embarcation est constitué de deux feuilles plastiques 1 et 2, assemblées par deux soudures en superposition 3 et 4. La zone de contrainte maximum à laquelle est soumis l'assemblage, sous la tension générée par la pression de gonflement, est située sur l'assemblage interne au droit du rayon de courbure minimum, c'est-à-dire dans le nez intérieur de l'embarcation. In FIGS. 1, Sa and 2b, the body of the boat consists of two plastic sheets 1 and 2, assembled by two welds in superposition 3 and 4. The zone of maximum stress to which the assembly is subjected, under the tension generated by the inflation pressure, is located on the internal assembly to the right of the minimum radius of curvature, that is to say in the inner nose of the boat.

Une bande intérieure de renfort rectangulaire 5 est soudée en 6 respectivement sur les feuilles 1 et 2. Cette soudure s'effectue à plat en même temps que la soudure 3, la bande de renfort 5 étant pliée selon son grand axe à cheval sur une plaque métallique servant de plaque équipotentielle lors du passage du champ électromagnétique à haute fréquence utilisé pour effectuer la soudure.An inner rectangular reinforcing strip 5 is welded at 6 respectively on the sheets 1 and 2. This welding is carried out flat at the same time as the welding 3, the reinforcing strip 5 being folded along its major axis astride a plate metal serving as an equipotential plate during the passage of the high frequency electromagnetic field used to perform the welding.

Sur les figures 3 à 6, l'embarcation est constituée de trois feuilles, une feuille supérieure 7, une feuille inférieure 9 et une ceinture intérieure 8. Ces feuilles sont assemblées à la ceinture par des soudures 10 effectuées dans le plan des feuilles. Ces soudures sont réalisées en habil lant -la ceinture 8 sur une électrode fermée de même forme que la ceinture, l'ensemble ainsi habillé étant posé entre les feuilles 7 et 9 sur le plateau de la presse à champ électromagnétique à haute fréquence. la fermeture extérieure est une soudure 11 située dans un plan horizontal perpendiculaire au plan de fermeture des feuilles 7 et 9. Cette soudure n'est pas capable de reprendre les tensions mécaniques générées par la pression de gonflage, notamment quand les feuilles 7 et 9 sont en matériau plastique armé. les efforts de fermeture sont alors repris par des assemblages 14 du premier type (assemblages plans), réalisés entre des bandes de renfort 12 et 13 et les feuilles supérieure et inférieure 7 et 9 respectivement. l'étanchéité est assurée par la soudure 11.Ces bandes de renfort sont constituées de deux bandes rectangulaires de grandes dimensions 12. la soudure de ces bandes s'effectue en habillant deux demiceintures placées dans le plan vertical de l'embarcation, les soudures 14 étant ef~ectuees avant la soudure 1- es deux demi-eeintures sont alors évacuées par les deux extrémités de ltembarcation et les renforts complémentaires 13, habillés sur deux outillages analogues aux outillages de ceinture. les soudures 14 de ces renforts 13 sont effectuées ensuite, les outillages étant évacués par la fente subsistant entre les renforts 13 et 14. la forme des renforts 14 est déterminée pour permettre un passage progressif des tensions de fermeture des renforts 14 au renfort 13. la fermeture finale de l'embarcation est alors réalisée à plat sans outillage intérieur par la soudure 11. In Figures 3 to 6, the boat consists of three sheets, an upper sheet 7, a lower sheet 9 and an inner belt 8. These sheets are joined to the belt by welds 10 made in the plane of the sheets. These welds are made by covering the belt 8 on a closed electrode of the same shape as the belt, the assembly thus dressed being placed between the sheets 7 and 9 on the plate of the press at high frequency electromagnetic field. the outer closure is a weld 11 situated in a horizontal plane perpendicular to the closure plane of the sheets 7 and 9. This weld is not capable of absorbing the mechanical tensions generated by the inflation pressure, in particular when the sheets 7 and 9 are made of reinforced plastic. the closing forces are then taken up by assemblies 14 of the first type (planar assemblies), produced between reinforcing strips 12 and 13 and the upper and lower sheets 7 and 9 respectively. sealing is ensured by welding 11.These reinforcement bands are made up of two large rectangular bands 12. the welding of these bands is done by dressing two half-belts placed in the vertical plane of the boat, the welds 14 being ef ~ ectuees before welding 1- es two half-eeintures are then evacuated by the two ends of the boat and the additional reinforcements 13, dressed on two tools similar to the belt tools. the welds 14 of these reinforcements 13 are then carried out, the tools being discharged through the slot remaining between the reinforcements 13 and 14. the shape of the reinforcements 14 is determined to allow a gradual passage of the closing tensions of the reinforcements 14 to the reinforcement 13. the final closing of the boat is then carried out flat without internal tools by welding 11.

Comme il va de soi et comme il résulte d'ailleurs dejà de ce qui précède, l'invention ne se limite nullement à ceux de ses modes d'application et de réalisation qui ont été plus spécialement envisagés ; elle en embrasse, au con- traire, toutes les variantes.  As goes without saying and as it moreover already results from the foregoing, the invention is in no way limited to those of its modes of application and embodiments which have been more especially envisaged; on the contrary, it embraces all its variants.

Claims (4)

REVEIEDIC^4?IONSREVEIEDIC ^ 4? IONS 1 - Objet gonflable tel que bateau, radeau, plateforme flottante, constitué par au moins deux feuilles (1, 2 ; 7, 8, 9) assemblées l'une à l'autre de façon étanche le long de leur bord périphérique, cet assemblage formant une lèvre saillant latéralement (3, 4 ; 11), caractérisé par le fait que, au moins dans une portion longitudinale de la zone de l'assemblage périphérique, on prévoit une bande intérieure de renfort (5 ; 12, 13) assemblée en (6 ; 14) le long de ses bords longitudinaux respectivement avec l'une et l'autre feuille de part et d'autre du susdit assemblage périphérique, ce grâce à quoi les efforts auxquels sont soumises les deux feuilles sont repris par la bande de renfort et le susdit assemblage périphérique nta à assurer qu'une fonction d'étanchéité. 1 - Inflatable object such as a boat, raft, floating platform, consisting of at least two sheets (1, 2; 7, 8, 9) assembled to one another in leaktight fashion along their peripheral edge, this assembly forming a laterally projecting lip (3, 4; 11), characterized in that, at least in a longitudinal portion of the zone of the peripheral assembly, an internal reinforcement strip (5; 12, 13) is provided, assembled in (6; 14) along its longitudinal edges respectively with one and the other sheet on either side of the aforesaid peripheral assembly, whereby the forces to which the two sheets are subjected are taken up by the strip of reinforcement and the aforesaid peripheral assembly nta to ensure that a sealing function. 2 - Objet gonflable suivant la revendication 1, comportant un boudin gonflable extérieur, caractérise par le fait que la bande intérieure de renfort (5) est de forme rectangulaire et est soudée sensiblement orthogonalement à l'axe longitudinal de l'objet et sensiblement symétriquement par rapport à cet axe, dans la zone à rayon de courbure minimum du boudin gonflable, au droit de 11 assemblage intérieur (3) de ce boudin. 2 - Inflatable object according to claim 1, comprising an external inflatable tube, characterized in that the internal reinforcing strip (5) is rectangular in shape and is welded substantially orthogonally to the longitudinal axis of the object and substantially symmetrically by relative to this axis, in the zone with minimum radius of curvature of the inflatable tube, in line with the interior assembly (3) of this tube. 3 - Objet gonflable selon la revendication 1, comportant un boudin gonflable extérieur, caractérisé en ce que le renfort (12, 13) est placé dans la région externe du boudin gonflable et en ce que ce renfort est constitué de quatre bandes (12, 13) placées symétriquement par rapport au grand axe longitudinal de l'anneau, deux bandes longitudinales de forme rectangulaire (12) étant placées latéralement et deux bandes de longueur réduite et de forme spécifique (13) assurant un recouvrement #par rapport aux bandes longitudinales et étant placées en avant de celles-ci de manière à laisser un dégagement pour l'outillage de soudure utilisé pour leur pose. 3 - Inflatable object according to claim 1, comprising an external inflatable tube, characterized in that the reinforcement (12, 13) is placed in the external region of the inflatable tube and in that this reinforcement consists of four bands (12, 13 ) placed symmetrically with respect to the long longitudinal axis of the ring, two longitudinal strips of rectangular shape (12) being placed laterally and two strips of reduced length and of specific shape (13) ensuring overlap # relative to the longitudinal strips and being placed in front of them so as to leave a clearance for the welding tools used for their installation. 4 - Objet gonflable suivant l'une quelconque des revendications 1 à 3, caractérisé par le fait que le boudin gonflable est réalisé à partir d'au moins une feuille plas- tique étanche soudable armée, au moins localements de fils textiles disposés sur ou à l'intérieur de cette feuille.  4 - Inflatable object according to any one of claims 1 to 3, characterized in that the inflatable tube is produced from at least one waterproof weldable reinforced plastic sheet, at least locally of textile threads placed on or at inside this sheet.
FR8311080A 1983-07-04 1983-07-04 INFLATABLE OBJECT CONSISTING OF AT LEAST TWO PLASTIC SHEETS ASSEMBLED IN A SEALED WAY WITH AT LEAST ONE MECHANICAL REINFORCEMENT FOR ASSEMBLY Expired FR2548587B3 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8311080A FR2548587B3 (en) 1983-07-04 1983-07-04 INFLATABLE OBJECT CONSISTING OF AT LEAST TWO PLASTIC SHEETS ASSEMBLED IN A SEALED WAY WITH AT LEAST ONE MECHANICAL REINFORCEMENT FOR ASSEMBLY

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8311080A FR2548587B3 (en) 1983-07-04 1983-07-04 INFLATABLE OBJECT CONSISTING OF AT LEAST TWO PLASTIC SHEETS ASSEMBLED IN A SEALED WAY WITH AT LEAST ONE MECHANICAL REINFORCEMENT FOR ASSEMBLY

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FR2548587A1 true FR2548587A1 (en) 1985-01-11
FR2548587B3 FR2548587B3 (en) 1985-12-20

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2065835A2 (en) * 1991-11-25 1995-02-16 Christopher Curtis O Neill Mar Method for forming an inflatable-craft buoyancy tube, and corresponding tube
FR2856008A1 (en) * 2003-06-13 2004-12-17 Pennel Ind Sa Continuous manufacturing process for coated fabric sleeve e.g. for inflatable pneumatic structures uses folded strips placed between two coated layers

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2065835A2 (en) * 1991-11-25 1995-02-16 Christopher Curtis O Neill Mar Method for forming an inflatable-craft buoyancy tube, and corresponding tube
FR2856008A1 (en) * 2003-06-13 2004-12-17 Pennel Ind Sa Continuous manufacturing process for coated fabric sleeve e.g. for inflatable pneumatic structures uses folded strips placed between two coated layers
WO2005002836A1 (en) * 2003-06-13 2005-01-13 Pennel Et Flipo Method for continuously producing a coated fabric jacket and a coated fabric jacket produced by said method

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