EP2113468A1 - Flexible protective sheath for a windscreen - Google Patents

Flexible protective sheath for a windscreen Download PDF

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Publication number
EP2113468A1
EP2113468A1 EP08290413A EP08290413A EP2113468A1 EP 2113468 A1 EP2113468 A1 EP 2113468A1 EP 08290413 A EP08290413 A EP 08290413A EP 08290413 A EP08290413 A EP 08290413A EP 2113468 A1 EP2113468 A1 EP 2113468A1
Authority
EP
European Patent Office
Prior art keywords
sheath
edge
protective strip
incision
flexible
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
EP08290413A
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German (de)
French (fr)
Other versions
EP2113468B1 (en
Inventor
Romain Elia
Rodolphe Monnier
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.)
Delfingen FR Anteuil SA
Original Assignee
Delfingen FR Anteuil SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Delfingen FR Anteuil SA filed Critical Delfingen FR Anteuil SA
Priority to EP08290413A priority Critical patent/EP2113468B1/en
Publication of EP2113468A1 publication Critical patent/EP2113468A1/en
Application granted granted Critical
Publication of EP2113468B1 publication Critical patent/EP2113468B1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
    • B65D85/30—Containers, packaging elements or packages, specially adapted for particular articles or materials for articles particularly sensitive to damage by shock or pressure
    • B65D85/48—Containers, packaging elements or packages, specially adapted for particular articles or materials for articles particularly sensitive to damage by shock or pressure for glass sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/02—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage
    • B65D81/05—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage maintaining contents at spaced relation from package walls, or from other contents
    • B65D81/053—Corner, edge or end protectors
    • B65D81/055—Protectors contacting three surfaces of the packaged article, e.g. three-sided edge protectors
    • B65D81/056—Protectors contacting three surfaces of the packaged article, e.g. three-sided edge protectors the surfaces being generally perpendicular to each other, e.g. three-sided corner protectors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2585/00—Containers, packaging elements or packages specially adapted for particular articles or materials
    • B65D2585/68—Containers, packaging elements or packages specially adapted for particular articles or materials for machines, engines, or vehicles in assembled or dismantled form
    • B65D2585/6802—Containers, packaging elements or packages specially adapted for particular articles or materials for machines, engines, or vehicles in assembled or dismantled form specific machines, engines or vehicles
    • B65D2585/6875—Containers, packaging elements or packages specially adapted for particular articles or materials for machines, engines, or vehicles in assembled or dismantled form specific machines, engines or vehicles engines, motors, machines and vehicle parts
    • B65D2585/6882—Containers, packaging elements or packages specially adapted for particular articles or materials for machines, engines, or vehicles in assembled or dismantled form specific machines, engines or vehicles engines, motors, machines and vehicle parts vehicle parts

Definitions

  • the present invention relates to a flexible protective sheath comprising an elongated body formed of a wall defining two surfaces, one internal and the other external, provided with corrugations, grooves or transverse openings useful for bending sheath, and a slot or longitudinal incision formed from one end to the other of this body.
  • the invention also relates to a method of manufacturing this sheath as well as to the use thereof for the protection of a song, an edge or an edge of an object, in particular that of a windshield.
  • a mounting device or tool facilitating the assembly of the sheath on such an object and a method for performing such an assembly is also part of the present description.
  • the field of use associated with the present invention is mainly focused on the protection of the windshields and windows of motor vehicles, it should be noted however that the use of the present sheath, the mounting tool and the method for the assembly of the latter, are not limited to windshields or panes of any kind but could be perfectly applicable to any other objects whose edges (edges, edges or outline) would need to be protected for example for storage, handling or transport.
  • edge will be used hereinafter to describe and encompass as well the edges, the songs or the contour of an object.
  • an object or even one or more of its parts, has a shape comparable to that of a wall. We therefore understand that the edge of this object will refer to the edge of this wall.
  • the document FR 2,624,103 discloses a profile made of an elastic material, such as a polyethylene foam, whose cross section has a shape similar to that of a horseshoe.
  • the inner surface of this profile is polygonal in shape and rounded in the corners.
  • the foam provides the flexibility necessary for this profile to follow any edge of an object.
  • the document GB 2,250,313 discloses a protective strip provided with a U-shaped section.
  • An outer layer is made from a soft thermoplastic material such as a rubber and an inner layer is formed from a thermoplastic polypropylene material.
  • the two branches of the U are extended by fingers allowing the band to grip the edge of the object to be protected.
  • This kind of protective strips requires both a certain flexibility to be able to marry the changes of direction of the edges to be protected and must be sufficiently thick to provide effective protection against shocks or crushing resulting for example from storage in vertical position of a heavy object.
  • the section of such a protective sheath could also be of square or rectangular shape.
  • at least the slotted surface and the opposite surface are provided with grooves or a multitude of transverse openings.
  • the sheath can be made flexible, at least in the vertical plane passing through these two surfaces.
  • corrugated, corrugated or perforated sheaths lend themselves well to the protection of bare rigid edges, this is not the case when they are lined with a projecting element that can easily be deformed, such as a seal elastomer.
  • a seal elastomer Such seals are used in particular windshields of the new generation that have evolved with the advent of technology allowing, in advance, the bonding of the seal on the glass of the windshield, whereas previously the seal was not set up only when mounting the windshield on the frame provided for its arrangement.
  • the object of the present invention aims to remedy at least in part the aforementioned problems by suggesting a split flexible duct ringed type, fluted or perforated, which incorporates additional means of protection.
  • This means aims to minimize or prevent any deformation in wavelets of the edge of the protected object and any similar deformations inflicted on an element likely to deform easily and projecting from this edge.
  • the subject of the invention is a flexible sheath according to the statement of claim 1.
  • the invention also relates to a use of this sheath according to claim 7 as well as to a method of manufacturing this sheath according to the invention.
  • claim 8 The invention also relates to a mounting tool for assembling this sheath to an edge (edge, edge or contour) of an object and a method for making such an assembly, according to the respective claims 12 and 15.
  • the integration of such a means obviates the aforementioned drawbacks while retaining the use of an economical and resistant material which, because of its ring-shaped, fluted or even openwork shape, retains the body of the sheath the necessary flexibility that is then needed.
  • the sheath of the present invention is of simple design and uses lightweight materials so that its handling is very easy.
  • this tool is of simple design which also makes it economical, reliable and easy to use.
  • this illustrates, in a schematic perspective, a portion of a flexible sheath 1 intended essentially for the protection of at least one edge of a substantially plate-shaped object.
  • This flexible sheath comprises an elongate body 2, formed of a wall 10 defining two surfaces, one said internal or internal 11 and the other said external or external 12. these surfaces are provided with corrugations, which, in the sense longitudinal sheath, form undulations by succession of ridges and troughs.
  • the body 2 of the sheath is further split along its entire length so that a slot or an incision 4, formed from one end to the other of the body, appears.
  • a protective strip 5, flexible and preferably smooth, is disposed within the body 2 in the plane passing through the incision 4 and vis-à-vis the latter.
  • the protective strip 5 forms inside the sheath a casing 6 fixed, at its longitudinal edges 7a, 7b, to the body 2 of the sheath.
  • the protective strip 5 is fixed to the outer surface 12 of the wall 10 of the body of the sheath. More preferably, the fixing is carried out by welding, in particular by ultrasonic welding. In a variant it would also be possible to fix it by gluing or even stapling.
  • the protective strip 5 is made from a flexible and relatively extensible material such as a nonwoven.
  • a flexible and relatively extensible material such as a nonwoven.
  • such a material has a low weight while being sufficiently strong and elastic at a time. It also has the advantage of being economical and can be easily attached to the surface of the body of the sheath, especially when the latter is corrugated.
  • the sheath 1 of the present invention is of substantially tubular shape, preferably of circular section. However, it could perfectly be of ovoid section, even square or rectangular.
  • the body 2 could have grooves so as to form a succession of recesses and ridges in the longitudinal direction, namely in the direction of the length of the sheath. These grooves could be provided either on the four faces of the body, or on the face incorporating the incision 4 and on the opposite face. In place of the grooves could also be provided transverse openings in the form of a succession of slots disposed perpendicular to the longitudinal axis of the body of the sheath. A combination of flutings and openings would also be possible.
  • the corrugations, grooves or transverse openings are useful for bending the sheath and allow the body thereof to bend easily despite the relatively rigid nature of the material that constitutes it.
  • the sheath makes it possible to marry at best the outlines of the edges of objects, even in cases where the edges are angular, for example in the right angles.
  • the body of the sheath is preferably made of a plastic material such as polypropylene, polyvinyl chloride or a polyamide. However, she could also be well made from another material, for example a metallic material.
  • this sheath 1 can effectively protect the edge of a flat or curved plate shaped object.
  • a preferred use is that of the protection of the edges of a window, in particular a windshield lined with a projecting element that can easily be deformed, such as an elastomeric seal.
  • the figure 2 represents, in a schematic vertical sectional view, the sheath 1 assembled on the edge 21 of an object 20 in the form of a plate, in this case a windshield of a vehicle. As well illustrated in this figure, this windshield is bordered by a seal 25 projecting from the edge 21. Thanks to the integration of the protective strip 5 in the body 2 of the sheath, particularly in the vicinity or against the portion of inner surface 11 located vis-à-vis the incision 4, the projecting end of the seal may advantageously be in abutment against the protective strip 5. Such a situation is encountered for example on the edge closest to the ground of an object 20 stored in a vertical position.
  • this stretched protective strip prevents the seal from marrying the succession of hollows and ridges present at the inner surface 11 of the wall of the body of the sheath.
  • no wavelets deformation can be formed on the seal, even after a prolonged period of storage of the windshield in vertical position.
  • the protective strip 5 will be applied against the slot or the incision 4 made rectilinearly and continuously in the body 2 of the sheath 1.
  • This first operation can for example by applying the band against the body 2 or vice versa. It should also be ensured that the band thus applied is not wrinkled.
  • this operation will take place on a flat surface where the body and / or the protective strip can at least temporarily take support.
  • the second step of the method consists in partially inserting the protective strip 5 in the incision 4 so that the longitudinal edges 7a, 7b of this protective strip remain outside the body 2 of the sheath 1.
  • This operation may for example to perform, on the bench of a machine, by means of a rotary tool of disc shape. The latter will then be able to press the band on its longitudinal axis so as to force it into the body 2, through the longitudinal incision 4, to the close vicinity or in contact with the inner surface 11 of the wall of the body located opposite this incision.
  • the third step of the manufacturing process consists in fixing the longitudinal edges 7a, 7b of the strip 5 against the outer surface 12 of the body of the sheath. Preferably this operation will be performed by ultrasonic welding. However, other attachment methods, such as gluing or stapling, could also be implemented in this step, in particular depending on the constituent materials of the body and the protective strip and their ability to be assembled and assembled. adhere to each other.
  • a fourth step will consist in receiving the flexible sheath 1 thus produced.
  • the receiving operation will preferably be by winding the sheath, either around a hub in the manner of a coil or a roller, or in a receptacle such as a container.
  • the steps of the present process of manufacture are carried out continuously on the bench of a machine.
  • we will proceed to the continuous supply of the split body 2 of the sheath and the protective strip 5 for their application against each other. Upstream of this application, it would still be possible to perform the incision operation of the body in the case where the latter would not be yet.
  • the protective strip 5 could be issued from a roll of large width and undergo a preliminary operation of cutting this large width into a plurality of strips of width necessary and sufficient to achieve the present flexible sheath.
  • the slicing of this protective strip tape can still be performed continuously during the course of the wide band. It could also be done in a single operation by slicing the entire roll into multiple rolls of smaller width.
  • the figure 3 is a schematic perspective view of a mounting tool 30 facilitating the assembly of the flexible sheath 1 on the edge 21 of the object 20 to be protected.
  • the Figures 4a, 4b and 4c are respectively front views, top and left of this tool 30.
  • the latter consists of a sleeve 33, with longitudinal axis 34, open at both longitudinal ends. One of these ends is called the input end 31 and the other is said output end 32.
  • This tool 30 incorporates a progressive spacing means 35, extending substantially inside the sleeve 33.
  • This means spacer 35 consists of two surfaces 35a, 35b converging towards the inlet end 31, and diverging toward the outlet end 32.
  • the bisector of the apex angle ⁇ of these two surfaces 35a, 35b is preferably parallel, or even coincidental, with the longitudinal axis 34 of the sheath 33.
  • the spacing means 35 progressive is triangular. Both surfaces 35a, 35b are flat but could also be convex if the shape of this means would be conical for example. The latter could also be pyramidal. In a variant not shown, the upper edges of these two surfaces 35a, 35b could still be connected to improve the rigidity of the spacer means, in particular on the output end of the sleeve end.
  • the sheath 33 and the spacing means 35 of the mounting tool 30 are formed in one piece, for example by stamping or by molding an injected plastic.
  • This tool could also be made of another material, such as aluminum, or even from a plurality of materials depending on the various constraints that must undergo parts of this tool.
  • the progressive separating means protrudes from the sheath 33 on the inlet end 31 side, in order to facilitate its introduction into the slot or the incision 4 of the body 2 of the sheath.
  • the sheath 33 is provided with a notch 36, formed on the back of the sheath, at its outlet end 32.
  • this indentation 36 will be better understood in relation to the figure 5 which diagrammatically and in a front view shows the mounting tool 30 in use on a portion of the windshield 20. figure 6 giving, in turn, a sectional view along line VI-VI of the figure 5 .
  • the direction of movement of the mounting tool 30 is indicated by the arrow 37 in the figure 5 . Due to the natural inclination that this tool takes when it is held in one hand by its sheath 33, it has been planned to cut the sheath of the notch 36, so as to provide a clearance space sufficient for that the sheath 1 is not compressed at the outlet of the sheath.
  • the first step of this assembly process consists in introducing, into the sheath 33, the flexible sheath 1 incised until it passes through the two ends 31, 32 of this sheath. To carry out this first operation, it will be ensured that the progressive spacing means 35 is inserted into the longitudinal incision 4 which is formed in the body 2 of the sheath.
  • the second step it will perform the insertion, on the edge 21 of the object 20, of the sheath portion 1 located near the outlet end 32 of the sheath.
  • This introduction of the sheath on the edge 21 is easily effected because at the outlet end, the edges of the incision 4 have been sufficiently spaced apart from each other by the spacing means. progressively planned for this purpose.
  • the elasticity of the body of the sheath allows sufficient maintenance of the sheath on the object 20 without the need for additional closure means.
  • the third step of this assembly process consists of simultaneous applications on the sleeve 33, a pressure exerted against the edge 21 of the object 20 and a movement whose direction of movement 37 is directed from the end output 32 to the inlet end 31 of the sheath. In this way, we will be able to slide the sheath on the sheath 1 and gradually deposit it on the edge 21 of the object in question. Due to this movement movement, the sheath is automatically introduced and deposited on the edge 21 after its incision would have been sufficiently removed by the progressive separation means.
  • the mounting tool 30 could also be provided with a shoe or guide shoe that can adapt to the thickness of the edge 21 of the object 20 and which could improve the guidance and installation of the flexible sheath 1 by better tracking of the edge 21.
  • the corrugations of the body 2 provide a flexion of the sheath 1 in all directions.
  • the latter is able to easily follow any edge 21 of an object, whether it is sinuous or strongly angular.
  • the embodiment illustrated in figure 1 has the advantage of providing greater freedom of movement to the protective strip 5, which, thanks to the free envelope that it forms within the body 2, is advantageously not maintained by bonding or by welding in the body 2 against the inner surface 11 located opposite the incision 4. Thanks to this, the extensibility of the protective strip 5 is better exploited and the risk of tearing of the strip, especially in the portions strongly angular edge of an object, is all the less.
  • nonwoven material is preferred for the production of the protective strip, it will of course be understood that other materials or combinations of materials with neighboring properties could also be used.
  • the longitudinal incision 4 could take the form of a narrow slot after removal of material from the body 2.
  • a simple incision without removal of material also suitable and that the latter solution also had the advantage of being more economical to implement.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Securing Of Glass Panes Or The Like (AREA)
  • Buffer Packaging (AREA)

Abstract

The sheath (1) has a longilineal body (2) including wall (10) that defines inner and outer surfaces (11, 12). A longitudinal slot or incision (4) is formed from one end to another end of the body. A flexible smooth protective band (5) is arranged inside the body in a plane passing through the slot or incision and opposite to the slot or incision. The protective band is made of non-woven material, and forms an envelope (6) inside the sheath. The envelope is fixed to the body through longitudinal edges (7a, 7b) of the protective band. Independent claims are also included for the following: (1) a method for fabricating a flexible protective sheath (2) a mounting tool for assembling a flexible protective sheath on an edge of an object, comprising a quill (3) a method for assembling a flexible protective sheath on an edge of an object.

Description

La présente invention a pour objet une gaine flexible de protection comprenant un corps longiligne formé d'une paroi définissant deux surfaces, l'une interne et l'autre externe, pourvues d'annelures, de cannelures ou d'ajours transversaux utiles à la flexion de la gaine, et d'une fente ou incision longitudinale ménagée d'une extrémité à l'autre de ce corps. L'invention porte également sur un procédé de fabrication de cette gaine ainsi que sur l'utilisation de cette dernière pour la protection d'un chant, d'une arête ou d'un bord d'un objet, en particulier celui d'un pare-brise. Un dispositif ou outil de montage facilitant l'assemblage de la gaine sur un tel objet ainsi qu'un procédé pour effectuer un tel assemblage fait également partie de la présente description.The present invention relates to a flexible protective sheath comprising an elongated body formed of a wall defining two surfaces, one internal and the other external, provided with corrugations, grooves or transverse openings useful for bending sheath, and a slot or longitudinal incision formed from one end to the other of this body. The invention also relates to a method of manufacturing this sheath as well as to the use thereof for the protection of a song, an edge or an edge of an object, in particular that of a windshield. A mounting device or tool facilitating the assembly of the sheath on such an object and a method for performing such an assembly is also part of the present description.

Bien que le domaine d'utilisation associé à la présente invention soit principalement axé sur la protection des pare-brise et vitres de véhicules motorisés, on relèvera toutefois que l'emploi de la présente gaine, que l'outil de montage ainsi que le procédé pour l'assemblage de cette dernière, ne sont nullement limités aux pare-brise ou aux vitres en tout genre mais pourraient parfaitement s'appliquer à n'importe quels autres objets dont les bords (chants, arêtes ou contour) nécessiteraient d'être protégés en vue par exemple de leur stockage, manutention ou de leur transport.Although the field of use associated with the present invention is mainly focused on the protection of the windshields and windows of motor vehicles, it should be noted however that the use of the present sheath, the mounting tool and the method for the assembly of the latter, are not limited to windshields or panes of any kind but could be perfectly applicable to any other objects whose edges (edges, edges or outline) would need to be protected for example for storage, handling or transport.

D'un point de vue terminologique et pour éviter toute ambiguïté dans la suite du présent exposé, on utilisera ci-après le terme bord pour décrire et englober aussi bien les arêtes, les chants ou le contour d'un objet. Généralement, un tel objet, voire une ou plusieurs de ses parties, présente une forme comparable à celle d'une paroi. On comprendra donc que le bord de cet objet se réfèrera au bord de cette paroi.From a terminological point of view and to avoid any ambiguity in the remainder of the present description, the term "edge" will be used hereinafter to describe and encompass as well the edges, the songs or the contour of an object. Generally, such an object, or even one or more of its parts, has a shape comparable to that of a wall. We therefore understand that the edge of this object will refer to the edge of this wall.

On connaît de nombreux renforts, gaines ou autres dispositifs prévus pour protéger les bords ou arêtes d'objets présentant généralement de grandes surfaces planes ou incurvées, tels que panneaux, portes ou vitres. Le document FR 2 624 103 décrit un profilé réalisé dans une matière élastique, comme une mousse de polyéthylène, dont la section droite présente une forme proche de celle d'un fer à cheval. La surface interne de ce profilé est de forme polygonale et arrondie dans les angles. La mousse confère la flexibilité nécessaire pour que ce profilé puisse suivre n'importe quel bord d'un objet.Many reinforcements, sheaths or other devices are known to protect the edges or edges of objects generally having large flat or curved surfaces, such as panels, doors or windows. The document FR 2,624,103 discloses a profile made of an elastic material, such as a polyethylene foam, whose cross section has a shape similar to that of a horseshoe. The inner surface of this profile is polygonal in shape and rounded in the corners. The foam provides the flexibility necessary for this profile to follow any edge of an object.

Le document GB 2 250 313 décrit une bande de protection pourvue d'une section en forme de U. Une couche externe est réalisée à partir d'un matériau thermoplastique souple tel qu'un caoutchouc et une couche interne est formée à partir d'un matériau thermoplastique de type polypropylène. Les deux branches du U se prolongent par des doigts permettant à la bande de s'agripper sur le bord de l'objet à protéger.The document GB 2,250,313 discloses a protective strip provided with a U-shaped section. An outer layer is made from a soft thermoplastic material such as a rubber and an inner layer is formed from a thermoplastic polypropylene material. The two branches of the U are extended by fingers allowing the band to grip the edge of the object to be protected.

Ce genre de bandes protectrices nécessite à la fois une certaine souplesse pour pouvoir épouser au mieux les changements de direction des bords à protéger et doivent être suffisamment épaisses pour conférer une protection efficace contre les chocs ou l'écrasement résultant par exemple d'un stockage en position verticale d'un objet lourd.This kind of protective strips requires both a certain flexibility to be able to marry the changes of direction of the edges to be protected and must be sufficiently thick to provide effective protection against shocks or crushing resulting for example from storage in vertical position of a heavy object.

Afin de réduire les coûts liés notamment à la nature et à la quantité de matière première de ces bandes, il a déjà été proposé de réaliser des gaines de protection à partir d'un tube annelé en matière plastique (chlorure de polyvinyle -PVC-), fendu dans le sens longitudinal afin d'accorder à ce dernier une ouverture présente sur toute sa longueur. C'est par cette ouverture que cette gaine de protection va pour pouvoir être insérée sur l'arête de l'objet à protéger. La paroi annelée de ce tube lui confère des surfaces interne et externe ondulées qui, dans le sens longitudinal, sont formées d'une succession de crêtes et de creux. Grâce à ces annelures, le tube présente une bonne flexibilité malgré la rigidité du matériau qui le constitue. Ces deux facteurs combinés permettent de répondre à l'exigence de souplesse, utile pour pouvoir épouser au mieux le contour de l'objet, ainsi qu'à la condition de rigidité avantageuse pour pouvoir offrir une résistance suffisante à l'écrasement de la paroi de la gaine, par exemple lorsqu'elle est soumise au poids de l'objet stocké en position verticale.In order to reduce the costs related in particular to the nature and the quantity of raw material of these strips, it has already been proposed to produce protective sheaths from a corrugated plastic tube (polyvinyl chloride -PVC-) , split in the longitudinal direction to give the latter an opening along its entire length. It is through this opening that this sheath of protection goes to be inserted on the edge of the object to be protected. The corrugated wall of this tube gives it inner and outer corrugated surfaces which, in the longitudinal direction, are formed of a succession of ridges and valleys. Thanks to these corrugations, the tube has good flexibility despite the rigidity of the material that constitutes it. These two factors combined make it possible to meet the requirement of flexibility, which is useful in order to be able to marry the contour of the object as well as possible, as well as the condition of advantageous rigidity in order to be able to offer sufficient resistance to the crushing of the wall of the object. the sheath, for example when subjected to the weight of the object stored in vertical position.

Bien qu'étant de forme tubulaire, la section d'une telle gaine de protection pourrait également être de forme carrée ou rectangulaire. Dans ce cas, au moins la surface fendue et la surface opposée sont pourvues de cannelures ou d'une multitude d'ajours transversaux. Par ce biais, la gaine peut être rendue flexible, au moins dans le plan vertical passant par ces deux surfaces.Although being of tubular shape, the section of such a protective sheath could also be of square or rectangular shape. In this case, at least the slotted surface and the opposite surface are provided with grooves or a multitude of transverse openings. By this means, the sheath can be made flexible, at least in the vertical plane passing through these two surfaces.

Si de telles gaines annelées, cannelées ou ajourées se prêtent bien à la protection de bords rigides nus, il n'en va pas de même lorsque ceux-ci sont bordés d'un élément saillant susceptible de se déformer facilement, tel qu'un joint élastomère. De tels joints équipent notamment les pare-brise de la nouvelle génération qui ont évolués avec l'arrivée d'une technologie permettant, par avance, le collage du joint sur le verre du pare-brise, alors qu'auparavant le joint n'était mis en place que lors du montage du pare-brise sur le cadre prévu à son agencement.If such corrugated, corrugated or perforated sheaths lend themselves well to the protection of bare rigid edges, this is not the case when they are lined with a projecting element that can easily be deformed, such as a seal elastomer. Such seals are used in particular windshields of the new generation that have evolved with the advent of technology allowing, in advance, the bonding of the seal on the glass of the windshield, whereas previously the seal was not set up only when mounting the windshield on the frame provided for its arrangement.

Lorsqu'un tel pare-brise est protégé par une gaine de type annelée et est entreposé en position verticale, le joint le plus proche du sol, faisant également saillie du bord du verre, est comprimé au fond de la gaine par le poids du pare-brise. Etant donné que la paroi de la gaine est cannelée et possède ainsi une succession de crêtes et creux, le joint se trouve ainsi comprimé contre cette paroi et, en raison de sa souplesse, épouse naturellement la forme de ces cannelures. Après une durée de stockage prolongée, le joint présente des déformations persistantes en forme de vaguelettes le long de son bord libre. Ces déformations engendrent par la suite des problèmes non négligeables, notamment durant l'opération de collage du pare-brise à son cadre-support sur la carrosserie du véhicule.When such a windshield is protected by a ring-type sheath and is stored in an upright position, the seal closest to the ground, also protruding from the edge of the glass, is compressed at the bottom of the sheath by the weight of the windshield -broken. Since the wall of the sheath is grooved and thus has a succession of ridges and hollows, the seal is thus pressed against this wall and, because of its flexibility, naturally follows the shape of these flutes. After prolonged storage time, the seal exhibits persistent wavelike deformations along its free edge. These deformations then cause significant problems, especially during the windshield gluing operation to its support frame on the vehicle body.

Le but de la présente invention vise à remédier au moins en partie aux problèmes pré-cités en suggérant une gaine flexible fendue de type annelé, cannelée ou ajourée, qui intègre un moyen additionnel de protection. Ce moyen vise à minimiser ou empêcher toute déformation en vaguelettes du bord de l'objet protégé ainsi que toute déformations similaires infligées à un élément susceptible de se déformer facilement et faisant saillie de ce bord.The object of the present invention aims to remedy at least in part the aforementioned problems by suggesting a split flexible duct ringed type, fluted or perforated, which incorporates additional means of protection. This means aims to minimize or prevent any deformation in wavelets of the edge of the protected object and any similar deformations inflicted on an element likely to deform easily and projecting from this edge.

A cet effet l'invention a pour objet une gaine flexible conforme à l'énoncé de la revendication 1. L'invention porte également sur une utilisation de cette gaine selon la revendication 7 ainsi que sur un procédé de fabrication de cette gaine conformément à la revendication 8. L'invention porte encore sur un outil de montage pour l'assemblage de cette gaine à un bord (arête, chant ou contour) d'un objet ainsi que sur un procédé pour réaliser un tel assemblage, conformément aux revendications respectives 12 et 15.To this end, the subject of the invention is a flexible sheath according to the statement of claim 1. The invention also relates to a use of this sheath according to claim 7 as well as to a method of manufacturing this sheath according to the invention. claim 8. The invention also relates to a mounting tool for assembling this sheath to an edge (edge, edge or contour) of an object and a method for making such an assembly, according to the respective claims 12 and 15.

Avantageusement, l'intégration d'un tel moyen permet d'obvier aux inconvénients susmentionnés tout en conservant l'utilisation d'un matériau économique et résistant qui, en raison de sa mise en forme annelée, cannelée, voire ajourée, conserve au corps de la gaine la flexibilité nécessaire qui lui est alors nécessaire.Advantageously, the integration of such a means obviates the aforementioned drawbacks while retaining the use of an economical and resistant material which, because of its ring-shaped, fluted or even openwork shape, retains the body of the sheath the necessary flexibility that is then needed.

On relèvera toutefois que l'emploi d'une gaine annelée ou cannelée, par opposition à une gaine ajourée ou de section torique, confère à la paroi du corps de la gaine une épaisseur accrue pour un poids minimum. Cette épaisseur constitue également une zone d'absorption pour les chocs et autres contraintes qui s'en trouvent avantageusement amorties. Par ailleurs la rigidité d'un tel corps de gaine résiste également mieux aux efforts de compression ou d'écrasement.It should be noted, however, that the use of a corrugated or corrugated sheath, as opposed to a perforated sheath or toric section, gives the wall of the body of the sheath an increased thickness for a minimum weight. This thickness also constitutes an absorption zone for shocks and other constraints which are advantageously damped. Moreover, the rigidity of such a sheath body is also more resistant to compression or crushing efforts.

Avantageusement encore, la gaine de la présente invention est de conception simple et fait recours à des matériaux légers de sorte que sa manutention s'en trouve très aisée.Advantageously, the sheath of the present invention is of simple design and uses lightweight materials so that its handling is very easy.

L'utilisation d'un outil spécifique pour l'assemblage de cette gaine sur le bord de l'objet à protéger, facilite sa pose sur cet objet et minimise le temps nécessaire aux opérations de protection et d'emballage de ce dernier. Avantageusement, cet outil est de conception simple ce qui le rend aussi économique, fiable et d'utilisation facile.The use of a specific tool for assembling this sheath on the edge of the object to be protected, facilitates its installation on this object and minimizes the time required for the protection and packaging operations of the latter. Advantageously, this tool is of simple design which also makes it economical, reliable and easy to use.

D'autres avantages apparaîtront à la lumière de la description détaillée qui va suivre et qui, pour chaque objet de l'invention, se réfère à un mode de réalisation préféré pris à titre nullement limitatif et illustré par les figures annexées dans lesquelles:

  • La figure 1 est une vue schématique en perspective d'une portion de la gaine flexible selon le mode de réalisation préféré de la présente invention.
  • La figure 2 est une vue schématique en coupe verticale de la gaine assemblée sur le bord d'un objet en forme de plaque, en l'occurrence un pare-brise de véhicule.
  • La figure 3 est une vue schématique en perspective oblique de l'outil de montage facilitant l'assemblage de la gaine flexible sur le bord de l'objet associé.
  • Les figure 4a, 4b et 4c, sont respectivement des vues de face et de dessus et de gauche de l'outil de montage illustré à la figure 3.
  • La figure 5 est une représentation schématique de l'outil de montage en cours d'utilisation sur une portion d'un pare-brise vu de face.
  • La figure 6 est une vue en coupe selon la ligne VI-VI de la figure 5.
Other advantages will become apparent in the light of the detailed description which follows and which, for each object of the invention, refers to a preferred embodiment taken in no way limiting and illustrated by the appended figures in which:
  • The figure 1 is a schematic perspective view of a portion of the flexible sheath according to the preferred embodiment of the present invention.
  • The figure 2 is a schematic view in vertical section of the assembled sheath on the edge of a plate-shaped object, in this case a vehicle windshield.
  • The figure 3 is a schematic oblique perspective view of the mounting tool facilitating the assembly of the flexible sheath on the edge of the associated object.
  • The Figure 4a, 4b and 4c , are respectively front and top and left views of the editing tool shown in figure 3 .
  • The figure 5 is a schematic representation of the mounting tool in use on a portion of a windshield seen from the front.
  • The figure 6 is a sectional view along the line VI-VI of the figure 5 .

En référence à la figure 1, celle-ci illustre, dans une perspective schématique, une portion d'une gaine 1 flexible destinée essentiellement à la protection d'au moins un bord d'un objet sensiblement en forme de plaque. Cette gaine flexible comprend un corps 2 longiligne, formé d'une paroi 10 définissant deux surfaces, l'une dite interne ou intérieure 11 et l'autre dite externe ou extérieure 12. ces surfaces sont pourvues d'annelures, qui, dans le sens longitudinal de la gaine, forment des ondulations par succession de crêtes et de creux.With reference to the figure 1 , this illustrates, in a schematic perspective, a portion of a flexible sheath 1 intended essentially for the protection of at least one edge of a substantially plate-shaped object. This flexible sheath comprises an elongate body 2, formed of a wall 10 defining two surfaces, one said internal or internal 11 and the other said external or external 12. these surfaces are provided with corrugations, which, in the sense longitudinal sheath, form undulations by succession of ridges and troughs.

Le corps 2 de la gaine est en outre fendu dans toute sa longueur de sorte qu'il laisse apparaître une fente ou une incision 4, ménagée d'une extrémité à l'autre du corps. Une bande protectrice 5, souple et de préférence lisse, est disposée à l'intérieur du corps 2 dans le plan passant par l'incision 4 et le vis-à-vis de cette dernière.The body 2 of the sheath is further split along its entire length so that a slot or an incision 4, formed from one end to the other of the body, appears. A protective strip 5, flexible and preferably smooth, is disposed within the body 2 in the plane passing through the incision 4 and vis-à-vis the latter.

Selon le mode de réalisation préféré, illustré à la figure 1, la bande protectrice 5 forme à l'intérieur de la gaine une enveloppe 6 fixée, en ses bords longitudinaux 7a, 7b, au corps 2 de la gaine. De préférence et comme bien illustré à la figure 1, la bande protectrice 5 est fixée à la surface externe 12 de la paroi 10 du corps de la gaine. De préférence encore, la fixation est réalisée par soudure, en particulier par soudure aux ultra-sons. En variante il serait également possible de la fixer par collage, voire par agrafage.According to the preferred embodiment, illustrated in FIG. figure 1 , the protective strip 5 forms inside the sheath a casing 6 fixed, at its longitudinal edges 7a, 7b, to the body 2 of the sheath. Preferably and as well illustrated in the figure 1 , the protective strip 5 is fixed to the outer surface 12 of the wall 10 of the body of the sheath. More preferably, the fixing is carried out by welding, in particular by ultrasonic welding. In a variant it would also be possible to fix it by gluing or even stapling.

Selon le monde de réalisation préféré, la bande protectrice 5 est réalisée à partir d'un matériau souple et relativement extensible tel qu'un non-tissé. Avantageusement, un tel matériau présente un faible poids tout en étant suffisamment solide et élastique à la fois. Il présente également l'avantage d'être économique et de pouvoir être fixé facilement à la surface du corps de la gaine, en particulier lorsque cette dernière est annelée.According to the preferred embodiment world, the protective strip 5 is made from a flexible and relatively extensible material such as a nonwoven. Advantageously, such a material has a low weight while being sufficiently strong and elastic at a time. It also has the advantage of being economical and can be easily attached to the surface of the body of the sheath, especially when the latter is corrugated.

La gaine 1 de la présente invention est de forme sensiblement tubulaire, de préférence de section circulaire. Cependant, elle pourrait parfaitement être de section ovoïde, voire carrée ou rectangulaire. Dans ce dernier cas, le corps 2 pourrait présenter des cannelures de sorte à former une succession de creux et de crêtes dans le sens longitudinal, à savoir dans le sens de la longueur de la gaine. Ces cannelures pourraient être ménagées soit sur les quatre faces du corps, soit sur la face intégrant l'incision 4 et sur la face opposée. En lieu et place des cannelures on pourrait aussi y ménager des ajours transversaux ayant la forme d'une succession de fentes disposées perpendiculairement à l'axe longitudinal du corps de la gaine. Une combinaison de cannelures et d'ajours serait également possible. Dans tous les cas, les annelures, cannelures ou ajours transversaux sont utiles à la flexion de la gaine et permettent au corps de celle-ci de pouvoir se fléchir facilement malgré la nature relativement rigide du matériau qui le constitue. Ainsi, la gaine permet d'épouser au mieux les contours des bords des objets, même dans les cas où les bords sont anguleux, par exemple dans les angles droits.The sheath 1 of the present invention is of substantially tubular shape, preferably of circular section. However, it could perfectly be of ovoid section, even square or rectangular. In the latter case, the body 2 could have grooves so as to form a succession of recesses and ridges in the longitudinal direction, namely in the direction of the length of the sheath. These grooves could be provided either on the four faces of the body, or on the face incorporating the incision 4 and on the opposite face. In place of the grooves could also be provided transverse openings in the form of a succession of slots disposed perpendicular to the longitudinal axis of the body of the sheath. A combination of flutings and openings would also be possible. In all cases, the corrugations, grooves or transverse openings are useful for bending the sheath and allow the body thereof to bend easily despite the relatively rigid nature of the material that constitutes it. Thus, the sheath makes it possible to marry at best the outlines of the edges of objects, even in cases where the edges are angular, for example in the right angles.

Le corps de la gaine est réalisé de préférence dans une matière plastique comme le polypropylène, le chlorure de polyvinyle ou un polyamide. Cependant, elle pourrait aussi bien être réalisée à partir d'un autre matériau, par exemple un matériau métallique.The body of the sheath is preferably made of a plastic material such as polypropylene, polyvinyl chloride or a polyamide. However, she could also be well made from another material, for example a metallic material.

Dans son utilisation préférée, la présente gaine 1 peut efficacement protéger le bord d'un objet en forme de plaque plane ou incurvée. Une utilisation privilégiée est celle de la protection des bords d'une vitre, en particulier d'un pare-brise bordé d'un élément saillant susceptible de se déformer facilement, comme un joint élastomère.In its preferred use, this sheath 1 can effectively protect the edge of a flat or curved plate shaped object. A preferred use is that of the protection of the edges of a window, in particular a windshield lined with a projecting element that can easily be deformed, such as an elastomeric seal.

La figure 2 représente, dans une vue schématique en coupe verticale, la gaine 1 assemblée sur le bord 21 d'un objet 20 en forme de plaque, en l'occurrence un pare-brise d'un véhicule. Comme bien illustré dans cette figure, ce pare-brise est bordé d'un joint 25 faisant saille du bord 21. Grâce à l'intégration de la bande protectrice 5 dans le corps 2 de la gaine, en particulier au voisinage ou contre la portion de surface intérieure 11 située en vis-à vis de l'incision 4, l'extrémité saillante du joint peut avantageusement se trouver en appui contre la bande protectrice 5. Une pareille situation se rencontre par exemple sur le bord le plus proche du sol d'un objet 20 entreposé en position verticale. Du fait que la bande protectrice soit intercalée entre l'extrémité libre du joint 25 et les annelures, cannelures ou ajours transversaux de la surface interne 11, cette bande protectrice tendue empêche le joint d'épouser la succession de creux et de crêtes présentes à la surface intérieure 11 de la paroi du corps de la gaine. Ainsi, aucune déformation en vaguelettes ne pourra se former sur le joint, même après une durée prolongée de stockage du pare-brise en position verticale.The figure 2 represents, in a schematic vertical sectional view, the sheath 1 assembled on the edge 21 of an object 20 in the form of a plate, in this case a windshield of a vehicle. As well illustrated in this figure, this windshield is bordered by a seal 25 projecting from the edge 21. Thanks to the integration of the protective strip 5 in the body 2 of the sheath, particularly in the vicinity or against the portion of inner surface 11 located vis-à-vis the incision 4, the projecting end of the seal may advantageously be in abutment against the protective strip 5. Such a situation is encountered for example on the edge closest to the ground of an object 20 stored in a vertical position. Because the protective strip is interposed between the free end of the seal 25 and the corrugations, grooves or transverse openings of the inner surface 11, this stretched protective strip prevents the seal from marrying the succession of hollows and ridges present at the inner surface 11 of the wall of the body of the sheath. Thus, no wavelets deformation can be formed on the seal, even after a prolonged period of storage of the windshield in vertical position.

En référence aux figures 1 et 2 on décrira à présent les étapes du procédé de fabrication de la gaine flexible illustrée à la figure 1. En premier lieu, on procédera à l'application de la bande protectrice 5 contre la fente ou l'incision 4 ménagée de façon rectiligne et continue dans le corps 2 de la gaine 1. Cette première opération peut s'effectuer par exemple en appliquant la bande contre le corps 2 ou inversement. On veillera en outre à ce que la bande ainsi appliquée ne soit pas plissée. De préférence, cette opération se déroulera sur une surface plane où le corps et/ou la bande protectrice peuvent au moins y prendre temporairement appui.With reference to Figures 1 and 2 the steps of the method of manufacturing the flexible sheath illustrated in FIG. figure 1 . In the first place, the protective strip 5 will be applied against the slot or the incision 4 made rectilinearly and continuously in the body 2 of the sheath 1. This first operation can for example by applying the band against the body 2 or vice versa. It should also be ensured that the band thus applied is not wrinkled. Preferably, this operation will take place on a flat surface where the body and / or the protective strip can at least temporarily take support.

La seconde étape du procédé consiste à insérer partiellement la bande protectrice 5 dans l'incision 4 de sorte que les bords longitudinaux 7a, 7b de cette bande protectrice restent à l'extérieur du corps 2 de la gaine 1. Cette opération peut par exemple s'effectuer, sur le banc d'une machine, au moyen d'un outil rotatif de forme discale. Ce dernier sera alors apte à presser la bande sur son axe longitudinal afin de la faire pénétrer de force dans le corps 2, au travers de l'incision longitudinale 4, jusqu'au proche voisinage ou au contact de la surface interne 11 de la paroi du corps située en vis-à-vis de cette incision.The second step of the method consists in partially inserting the protective strip 5 in the incision 4 so that the longitudinal edges 7a, 7b of this protective strip remain outside the body 2 of the sheath 1. This operation may for example to perform, on the bench of a machine, by means of a rotary tool of disc shape. The latter will then be able to press the band on its longitudinal axis so as to force it into the body 2, through the longitudinal incision 4, to the close vicinity or in contact with the inner surface 11 of the wall of the body located opposite this incision.

La troisième étape du procédé de fabrication consiste à fixer les bords longitudinaux 7a, 7b de la bande 5 contre la surface externe 12 du corps de la gaine. De préférence cette opération s'effectuera par soudure aux ultra-sons. Toutefois, d'autres méthodes de fixation, telle que le collage ou l'agrafage, pourraient également être mises en oeuvre dans cette étape, notamment en fonction des matières constitutives du corps et de la bande protectrice et de leur aptitude à être assemblées et à adhérer l'une à l'autre.The third step of the manufacturing process consists in fixing the longitudinal edges 7a, 7b of the strip 5 against the outer surface 12 of the body of the sheath. Preferably this operation will be performed by ultrasonic welding. However, other attachment methods, such as gluing or stapling, could also be implemented in this step, in particular depending on the constituent materials of the body and the protective strip and their ability to be assembled and assembled. adhere to each other.

De manière optionnelle, une quatrième étape consistera à réceptionner la gaine flexible 1 ainsi produite. L'opération de réception se fera de préférence par enroulement de la gaine, soit autour d'un moyeu à la manière d'une bobine ou d'un rouleau, soit dans un réceptacle tel qu'un container.Optionally, a fourth step will consist in receiving the flexible sheath 1 thus produced. The receiving operation will preferably be by winding the sheath, either around a hub in the manner of a coil or a roller, or in a receptacle such as a container.

De préférence encore, les étapes du présent procédé de fabrication s'effectuent en continu sur le banc d'une machine. A cet effet, on procédera à l'approvisionnement continuel du corps 2 fendu de la gaine et de la bande protectrice 5 en vue de leur application l'un contre l'autre. En amont de cette application, il serait encore possible de réaliser l'opération d'incision du corps dans le cas où ce dernier ne le serait pas encore. Aussi, la bande protectrice 5 pourrait être issue d'un rouleau de grande largeur et subir une opération préalable consistant à découper cette grande largeur en une pluralité de bandelettes de largeur nécessaire et suffisante à la réalisation de la présente gaine flexible. Le tranchage de cette bande protectrice en bandelette peut encore s'effectuer en continu lors du déroulement de la bande de grande largeur. Elle pourrait également s'effectuer en une seule opération par tranchage de l'entier du rouleau en de multiples rouleaux de plus petite largeur.More preferably, the steps of the present process of manufacture are carried out continuously on the bench of a machine. For this purpose, we will proceed to the continuous supply of the split body 2 of the sheath and the protective strip 5 for their application against each other. Upstream of this application, it would still be possible to perform the incision operation of the body in the case where the latter would not be yet. Also, the protective strip 5 could be issued from a roll of large width and undergo a preliminary operation of cutting this large width into a plurality of strips of width necessary and sufficient to achieve the present flexible sheath. The slicing of this protective strip tape can still be performed continuously during the course of the wide band. It could also be done in a single operation by slicing the entire roll into multiple rolls of smaller width.

La figure 3 est une vue schématique en perspective d'un outil de montage 30 facilitant l'assemblage de la gaine flexible 1 sur le bord 21 de l'objet 20 à protéger. Les figures 4a, 4b et 4c sont respectivement des vues de face, de dessus et de gauche de cet outil 30. Ce dernier est constitué d'un fourreau 33, d'axe longitudinal 34, ouvert en ses deux extrémités longitudinales. L'une de ces extrémités est appelée extrémité d'entrée 31 et l'autre est dite extrémité de sortie 32. Cet outil 30 intègre un moyen d'écartement 35 progressif, s'étendant sensiblement à l'intérieur du fourreau 33. Ce moyen d'écartement 35 est constitué de deux surfaces 35a, 35b convergentes en direction de l'extrémité d'entrée 31, et divergentes en direction de l'extrémité de sortie 32. Comme mieux visible à la figure 4b, la bissectrice de l'angle au sommet α de ces deux surfaces 35a, 35b est de préférence parallèle, voire confondue, à l'axe longitudinal 34 du fourreau 33.The figure 3 is a schematic perspective view of a mounting tool 30 facilitating the assembly of the flexible sheath 1 on the edge 21 of the object 20 to be protected. The Figures 4a, 4b and 4c are respectively front views, top and left of this tool 30. The latter consists of a sleeve 33, with longitudinal axis 34, open at both longitudinal ends. One of these ends is called the input end 31 and the other is said output end 32. This tool 30 incorporates a progressive spacing means 35, extending substantially inside the sleeve 33. This means spacer 35 consists of two surfaces 35a, 35b converging towards the inlet end 31, and diverging toward the outlet end 32. As best seen in FIG. figure 4b , the bisector of the apex angle α of these two surfaces 35a, 35b is preferably parallel, or even coincidental, with the longitudinal axis 34 of the sheath 33.

Selon le mode de réalisation préféré et comme bien illustré aux figures 3 et 4c, le moyen d'écartement 35 progressif est de forme triangulaire. Les deux surfaces 35a, 35b sont planes mais pourraient également être convexes dans le cas où la forme de ce moyen serait par exemple conique. Cette dernière pourrait également être pyramidale. Dans une variante non illustrée, les arêtes supérieures de ces deux surfaces 35a, 35b pourraient encore être reliées afin d'améliorer la rigidité du moyen d'écartement, en particulier du côté de l'extrémité de sortie du fourreau.According to the preferred embodiment and as well illustrated in Figures 3 and 4c the spacing means 35 progressive is triangular. Both surfaces 35a, 35b are flat but could also be convex if the shape of this means would be conical for example. The latter could also be pyramidal. In a variant not shown, the upper edges of these two surfaces 35a, 35b could still be connected to improve the rigidity of the spacer means, in particular on the output end of the sleeve end.

Comme bien illustré aux figures 3 et 4c, le fourreau 33 et le moyen d'écartement 35 de l'outil de montage 30 sont formés d'un seul tenant, par exemple par emboutissage ou par moulage d'un plastic injecté. Cet outil pourrait être également réalisé dans un autre matériau, tel que l'aluminium, voire à partir d'une pluralité de matériaux en fonction des différentes contraintes que doivent subir certaines parties de cet outil. De préférence, le moyen d'écartement 35 progressif fait saillie du fourreau 33 du côté de l'extrémité d'entrée 31, afin de faciliter son introduction dans la fente ou l'incision 4 du corps 2 de la gaine. Par ailleurs, le fourreau 33 est doté d'une échancrure 36, ménagée sur le dos du fourreau, en son extrémité de sortie 32.As well illustrated at Figures 3 and 4c , the sheath 33 and the spacing means 35 of the mounting tool 30 are formed in one piece, for example by stamping or by molding an injected plastic. This tool could also be made of another material, such as aluminum, or even from a plurality of materials depending on the various constraints that must undergo parts of this tool. Preferably, the progressive separating means protrudes from the sheath 33 on the inlet end 31 side, in order to facilitate its introduction into the slot or the incision 4 of the body 2 of the sheath. Moreover, the sheath 33 is provided with a notch 36, formed on the back of the sheath, at its outlet end 32.

La fonction de cette échancrure 36 sera mieux comprise en regard de la figure 5, laquelle représente schématiquement et dans une vue de face, l'outil de montage 30 en cours d'utilisation sur une portion de pare-brise 20. La figure 6 donnant quant à elle une vue en coupe selon la ligne VI-VI de la figure 5. En cours d'utilisation, le sens de déplacement de l'outil de montage 30 est indiqué par la flèche 37 dans la figure 5. En raison de l'inclinaison naturelle que prend cet outil lorsqu'il est maintenu d'une main par son fourreau 33, il a été prévu d'entailler le fourreau de l'échancrure 36, de sorte à ménager un espace de débattement suffisant pour que la gaine 1 ne soit pas comprimée à la sortie du fourreau.The function of this indentation 36 will be better understood in relation to the figure 5 which diagrammatically and in a front view shows the mounting tool 30 in use on a portion of the windshield 20. figure 6 giving, in turn, a sectional view along line VI-VI of the figure 5 . In use, the direction of movement of the mounting tool 30 is indicated by the arrow 37 in the figure 5 . Due to the natural inclination that this tool takes when it is held in one hand by its sheath 33, it has been planned to cut the sheath of the notch 36, so as to provide a clearance space sufficient for that the sheath 1 is not compressed at the outlet of the sheath.

En référence aux figures 5 et 6 sera encore décrit un procédé pour l'assemblage, sur le bord 21 d'un objet 20, de la gaine flexible 1 à l'aide de l'outil de montage 30 décrit ci-avant. L'objet 20 illustré dans ces figures est le même que celui représenté dans la figure 2, à savoir un pare-brise bordé d'un joint élastomère.With reference to Figures 5 and 6 a method is described for assembling, on the edge 21 of an object 20, the flexible sheath 1 with the aid of the mounting tool 30 described above. The object 20 illustrated in these figures is the same as that shown in FIG. figure 2 , namely a windshield lined with an elastomeric seal.

La première étape de ce procédé d'assemblage consiste en l'introduction, dans le fourreau 33, de la gaine flexible 1 incisée jusqu'à ce qu'elle traverse les deux extrémités 31, 32 de ce fourreau. Pour mener à bien cette première opération, on veillera à ce que le moyen d'écartement 35 progressif soit inséré dans l'incision longitudinale 4 qui est ménagée dans le corps 2 de la gaine.The first step of this assembly process consists in introducing, into the sheath 33, the flexible sheath 1 incised until it passes through the two ends 31, 32 of this sheath. To carry out this first operation, it will be ensured that the progressive spacing means 35 is inserted into the longitudinal incision 4 which is formed in the body 2 of the sheath.

Dans la seconde étape, on effectuera l'insertion, sur le bord 21 de l'objet 20, de la portion de gaine 1 située à proximité de l'extrémité de sortie 32 du fourreau. Cette mise en place de la gaine sur le bord 21 s'opère facilement du fait qu'en l'extrémité de sortie, les bords de l'incision 4 ont été suffisamment écartés l'un de l'autre par le moyen d'écartement progressif prévu à cet effet. Une fois introduite sur le bord 21 de l'objet en question, l'élasticité du corps de la gaine permet un maintien suffisant de la gaine sur l'objet 20 sans qu'un moyen de fermeture additionnel ne soit nécessaire.In the second step, it will perform the insertion, on the edge 21 of the object 20, of the sheath portion 1 located near the outlet end 32 of the sheath. This introduction of the sheath on the edge 21 is easily effected because at the outlet end, the edges of the incision 4 have been sufficiently spaced apart from each other by the spacing means. progressively planned for this purpose. Once introduced on the edge 21 of the object in question, the elasticity of the body of the sheath allows sufficient maintenance of the sheath on the object 20 without the need for additional closure means.

La troisième étape de ce procédé d'assemblage consiste en les applications simultanées sur le fourreau 33, d'une pression exercée contre le bord 21 de l'objet 20 et d'un mouvement dont le sens de déplacement 37 est dirigé de l'extrémité de sortie 32 vers l'extrémité d'entrée 31 du fourreau. De cette façon, on va pouvoir faire coulisser le fourreau sur la gaine 1 et déposer progressivement cette dernière sur le bord 21 de l'objet en question. De part ce mouvement de déplacement, la gaine est automatiquement introduite et déposée sur le bord 21 après que son incision eût été suffisamment écartée par le moyen d'écartement progressif.The third step of this assembly process consists of simultaneous applications on the sleeve 33, a pressure exerted against the edge 21 of the object 20 and a movement whose direction of movement 37 is directed from the end output 32 to the inlet end 31 of the sheath. In this way, we will be able to slide the sheath on the sheath 1 and gradually deposit it on the edge 21 of the object in question. Due to this movement movement, the sheath is automatically introduced and deposited on the edge 21 after its incision would have been sufficiently removed by the progressive separation means.

En variante non illustrée, l'outil de montage 30 pourrait également être doté d'un sabot ou patin de guidage qui puisse s'adapter à l'épaisseur du bord 21 de l'objet 20 et qui ainsi pourrait améliorer le guidage et la pose de la gaine flexible 1 par un meilleur suivi du bord 21.Alternatively not illustrated, the mounting tool 30 could also be provided with a shoe or guide shoe that can adapt to the thickness of the edge 21 of the object 20 and which could improve the guidance and installation of the flexible sheath 1 by better tracking of the edge 21.

Avantageusement, on comprendra que les annelures du corps 2 procurent une flexion de la gaine 1 dans toutes les directions. Ainsi, cette dernière est apte à suivre aisément n'importe quel bord 21 d'un objet, qu'il soit sinueux ou fortement anguleux.Advantageously, it will be understood that the corrugations of the body 2 provide a flexion of the sheath 1 in all directions. Thus, the latter is able to easily follow any edge 21 of an object, whether it is sinuous or strongly angular.

Selon une autre variante, il serait également possible de disposer et de maintenir la bande protectrice 5 contre la portion de surface interne de la paroi qui se trouve en vis-à-vis de l'incision longitudinale 4. Dans ce cas, l'utilisation d'une bande protectrice adhésive et de plus faible largeur pourrait être judicieuse. Cependant, le mode de réalisation illustré à la figure 1 présente l'avantage d'offrir une plus grande liberté de mouvement à la bande protectrice 5, laquelle grâce à l'enveloppe libre qu'elle forme au sein du corps 2 n'est avantageusement pas maintenue par collage ou par soudage dans le corps 2, contre la surface interne 11 située en vis-à-vis de l'incision 4. Grâce à cela, l'extensibilité de la bande protectrice 5 s'en trouve mieux exploitée et les risques de déchirement de la bande, notamment dans les portions fortement anguleuses du bord d'un objet, s'en trouve d'autant amoindris.According to another variant, it would also be possible to arrange and maintain the protective strip 5 against the inner surface portion of the wall which faces the longitudinal incision 4. In this case, the use an adhesive tape and a smaller width might be helpful. However, the embodiment illustrated in figure 1 has the advantage of providing greater freedom of movement to the protective strip 5, which, thanks to the free envelope that it forms within the body 2, is advantageously not maintained by bonding or by welding in the body 2 against the inner surface 11 located opposite the incision 4. Thanks to this, the extensibility of the protective strip 5 is better exploited and the risk of tearing of the strip, especially in the portions strongly angular edge of an object, is all the less.

Bien qu'un matériau de type non-tissé soit privilégié pour la réalisation de la bande protectrice, on conviendra bien sûr que d'autres matériaux ou combinaisons de matériaux aux propriétés voisines pourraient être aussi employés.Although a nonwoven material is preferred for the production of the protective strip, it will of course be understood that other materials or combinations of materials with neighboring properties could also be used.

On notera encore que l'incision longitudinale 4 pourrait prendre la forme d'une fente de faible largeur après enlèvement de matière du corps 2. Cependant, il a été constaté qu'une simple incision sans enlèvement de matière convenait également et que cette dernière solution présentait également l'avantage d'être plus économique à mettre en oeuvre.Note also that the longitudinal incision 4 could take the form of a narrow slot after removal of material from the body 2. However, it was found that a simple incision without removal of material also suitable and that the latter solution also had the advantage of being more economical to implement.

Claims (15)

Gaine (1) flexible de protection comprenant un corps (2) longiligne formé d'une paroi (10) définissant deux surfaces, l'une interne (11) et l'autre externe (12), pourvues d'annelures, de cannelures ou d'ajours transversaux utiles à la flexion de la gaine, et d'une fente ou incision longitudinale (4) ménagée d'une extrémité à l'autre dudit corps (2), caractérisée en ce qu'une bande protectrice (5) est disposée à l'intérieur dudit corps (2), dans un plan passant par ladite fente ou incision (4) et le vis-à-vis de cette dernière.Sheath (1) flexible protection comprising a body (2) elongate formed by a wall (10) defining two surfaces, one internal (11) and the other external (12), provided with corrugations, grooves or transverse openings useful for bending the sheath, and a slot or longitudinal incision (4) formed from one end to the other of said body (2), characterized in that a protective strip (5) is arranged inside said body (2), in a plane passing through said slot or incision (4) and vis-à-vis the latter. Gaine (1) selon la revendication 1, caractérisée en ce que ladite bande protectrice (5) forme, à l'intérieur de la gaine (1), une enveloppe (6) fixée en ses bords longitudinaux (7a, 7b) au corps (2) de la gaine (1).Sheath (1) according to claim 1, characterized in that said protective strip (5) forms, inside the sheath (1), an envelope (6) fixed at its longitudinal edges (7a, 7b) to the body ( 2) of the sheath (1). Gaine (1) selon la revendication 2, caractérisée en ce que la bande protectrice (5) est fixée à la surface externe (12) de la paroi (10) du corps (2) de la gaine (1).Sheath (1) according to claim 2, characterized in that the protective strip (5) is fixed to the outer surface (12) of the wall (10) of the body (2) of the sheath (1). Gaine (1) selon la revendication 2 ou 3,
caractérisée en ce que la bande protectrice (5) est fixée audit corps (2) par soudage ou par collage.Sheath (1) according to claim 2 or 3,
characterized in that the protective strip (5) is fixed to said body (2) by welding or gluing. Gaine (1) selon l'une des revendications précédentes, caractérisé en ce que le matériau de la bande protectrice (5) est un non-tissé.Sheath (1) according to one of the preceding claims, characterized in that the material of the protective strip (5) is a nonwoven. Gaine (1) selon l'une des revendications 1 à 4, caractérisée en ce que ledit corps (2) est de forme tubulaire.Sheath (1) according to one of claims 1 to 4, characterized in that said body (2) is tubular. Utilisation de la gaine (1) selon l'une des revendications précédentes, pour la protection d'un bord (21) d'un objet (20), notamment celui d'une vitre, en particulier d'un pare-brise bordé d'un joint élastomère (25).Use of the sheath (1) according to one of the preceding claims, for the protection of an edge (21) an object (20), in particular that of a window, in particular a windshield lined with an elastomeric seal (25). Procédé de fabrication de la gaine (1) selon l'une des revendications 2 à 5, caractérisé en ce qu'il comprend les étapes suivantes: a) application d'une bande protectrice (5) non plissée contre une incision longitudinale (4) ménagée de façon rectiligne et continue dans un corps (2) de gaine (1) flexible, b) insertion partielle de la bande protectrice (5) dans ladite incision (4) de sorte que les bords longitudinaux (7a, 7b) de cette bande restent à l'extérieur du corps (2) de la gaine, c) fixation desdits bords longitudinaux (7a, 7b) de la bande (5) contre la surface externe (12) du corps (2) de la gaine (1), Process for manufacturing the sheath (1) according to one of Claims 2 to 5, characterized in that it comprises the following steps: a) applying a non-wrinkled protective strip (5) against a longitudinal incision (4) arranged rectilinearly and continuously in a body (2) of flexible sheath (1), b) partial insertion of the protective strip (5) in said incision (4) so that the longitudinal edges (7a, 7b) of this strip remain outside the body (2) of the sheath, c) fixing said longitudinal edges (7a, 7b) of the strip (5) against the outer surface (12) of the body (2) of the sheath (1), Procédé de fabrication de la gaine (1) selon la revendication 8, caractérisé en ce que les étapes s'effectuent en continu.A method of manufacturing the sheath (1) according to claim 8, characterized in that the steps are carried out continuously. Procédé de fabrication de la gaine (1) selon la revendication 9, caractérisé en ce que l'insertion partielle de la bande protectrice (5) s'effectue au moyen d'un outil rotatif de forme discale, apte à presser cette dernière sur son axe longitudinal afin de la faire pénétrer jusqu'au proche voisinage ou au contact de la surface interne (11) de la paroi (10) du corps (2) située en vis-à-vis de ladite incision longitudinale (4).A method of manufacturing the sheath (1) according to claim 9, characterized in that the partial insertion of the protective strip (5) is effected by means of a rotary tool of disc shape, able to press the latter on its longitudinal axis so as to penetrate as close to or in contact with the inner surface (11) of the wall (10) of the body (2) facing said longitudinal incision (4). Procédé de fabrication de la gaine (1) selon la revendication 8, caractérisé en ce que l'opération de fixation desdits bords longitudinaux (7a, 7b) de la bande protectrice (5) s'effectue par soudure aux ultra-sons.A method of manufacturing the sheath (1) according to claim 8, characterized in that the operation of fixing said longitudinal edges (7a, 7b) of the protective strip (5) is performed by ultrasonic welding. Outil de montage (30) pour l'assemblage, sur un bord (21) d'un objet (20), d'une gaine (1) flexible et incisée selon l'une des revendications 2 à 5, caractérisé en ce qu'il comprend un fourreau (33) d'axe longitudinal (34) ouvert en ses deux extrémités, l'une dite extrémité d'entrée (31) et l'autre dite extrémité de sortie (32), ainsi qu'un moyen d'écartement (35) progressif s'étendant sensiblement à l'intérieur dudit fourreau (33) et constitué de deux surfaces (35a, 35b) convergentes en direction de l'extrémité d'entrée (31) et divergentes en direction de l'extrémité de sortie (32).Assembly tool (30) for assembling, on an edge (21) of an object (20), a flexible and incised sheath (1) according to one of Claims 2 to 5, characterized in that it comprises a sheath (33) with a longitudinal axis (34) open at its two ends, one said input end (31) and the other said output end (32), and a means for progressive spacing (35) extending substantially inside said sleeve (33) and consisting of two surfaces (35a, 35b) converging towards the inlet end (31) and diverging towards the end of output (32). Outil de montage (30) selon la revendication 12,
caractérisé en ce que ledit moyen d'écartement (35) progressif possède une forme triangulaire, conique ou pyramidale.Mounting tool (30) according to claim 12,
characterized in that said progressive spacing means (35) has a triangular, conical or pyramidal shape. Outil de montage (30) selon la revendication 12 ou 13, caractérisé en ce que le fourreau (33) et le moyen d'écartement (35) progressif sont formés d'un seul tenant.Mounting tool (30) according to claim 12 or 13, characterized in that the sleeve (33) and the spacing means (35) are formed integrally. Procédé pour l'assemblage, sur un bord (21) d'un objet (20), d'une gaine (1) selon l'une des revendications 2 à 5 à l'aide de l'outil de montage (30) selon l'une des revendications 12 à 14, comportant les étapes suivantes: a) introduction de la gaine (1) flexible et incisée dans le fourreau (33) en insérant le moyen d'écartement (35) progressif dans l'incision longitudinale (4) du corps (2) de la gaine (1) jusqu'à ce que cette dernière traverse les deux extrémités (31, 32) du fourreau (33), b) insertion, sur le bord (21) de l'objet (20) à protéger, de la portion de gaine (1) située à proximité de l'extrémité de sortie (32) du fourreau (33), c) applications simultanées sur le fourreau (33) d'une pression exercée contre le bord (21) de l'objet (20) et d'un mouvement dont le sens de déplacement (37) est dirigé de l'extrémité de sortie (32) vers l'extrémité d'entrée (31) du fourreau (33) de sorte à faire coulisser ce dernier sur la gaine (1) et à la déposer progressivement sur le bord (21) dudit objet (20) à protéger. Method for assembling, on an edge (21) of an object (20), a sheath (1) according to one of Claims 2 to 5 by means of the mounting tool (30) according to one of claims 12 to 14, comprising the following steps: a) introduction of the sheath (1) flexible and incised in the sheath (33) by inserting the spacing means (35) in the progressive longitudinal incision (4) of the body (2) of the sheath (1) until the latter passes through both ends (31, 32) of the sheath (33), b) insertion, on the edge (21) of the object (20) to be protected, of the sheath portion (1) located near the outlet end (32) of the sheath (33), c) simultaneous applications on the sleeve (33) of a pressure exerted against the edge (21) of the object (20) and a movement whose direction of movement (37) is directed from the outlet end (32) towards the inlet end (31) of the sheath (33) so as to slide it on the sheath (1) and gradually deposit it on the edge (21) of said object (20) to be protected.
EP08290413A 2008-04-30 2008-04-30 Flexible protective sheath for a windscreen Active EP2113468B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP08290413A EP2113468B1 (en) 2008-04-30 2008-04-30 Flexible protective sheath for a windscreen

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Application Number Priority Date Filing Date Title
EP08290413A EP2113468B1 (en) 2008-04-30 2008-04-30 Flexible protective sheath for a windscreen

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EP2113468A1 true EP2113468A1 (en) 2009-11-04
EP2113468B1 EP2113468B1 (en) 2013-02-27

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2067999A5 (en) * 1969-11-25 1971-08-20 Gourbil Francois
EP0318746A2 (en) * 1987-11-28 1989-06-07 MAN Nutzfahrzeuge Aktiengesellschaft Bead fitting tool
FR2624103A2 (en) 1986-04-25 1989-06-09 Delamare & Cie Pierre Package for the protection of articles during transport and storage, more particularly by at least partially surrounding the edges of the said articles
GB2250313A (en) 1990-11-08 1992-06-03 Coba Plastics Limited Thermoplastics edging strip
GB2367800A (en) 2000-10-10 2002-04-17 Lin Pac Mouldings Edge protection strip
DE10205477A1 (en) * 2002-02-10 2003-08-21 Fagerdala Benelux S A Ring-like packaging profile containing polyethylene foam, a plate slot and an antislip layer useful for packaging glass plates and other similar items
WO2005072914A2 (en) * 2004-01-21 2005-08-11 3M Innovative Properties Company Attaching device for gutter-sectional strip
US20060196136A1 (en) 2005-03-07 2006-09-07 Armacell Enterprise Gmbh Protection profile for a substantially plate-shaped body

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2067999A5 (en) * 1969-11-25 1971-08-20 Gourbil Francois
FR2624103A2 (en) 1986-04-25 1989-06-09 Delamare & Cie Pierre Package for the protection of articles during transport and storage, more particularly by at least partially surrounding the edges of the said articles
EP0318746A2 (en) * 1987-11-28 1989-06-07 MAN Nutzfahrzeuge Aktiengesellschaft Bead fitting tool
GB2250313A (en) 1990-11-08 1992-06-03 Coba Plastics Limited Thermoplastics edging strip
GB2367800A (en) 2000-10-10 2002-04-17 Lin Pac Mouldings Edge protection strip
DE10205477A1 (en) * 2002-02-10 2003-08-21 Fagerdala Benelux S A Ring-like packaging profile containing polyethylene foam, a plate slot and an antislip layer useful for packaging glass plates and other similar items
WO2005072914A2 (en) * 2004-01-21 2005-08-11 3M Innovative Properties Company Attaching device for gutter-sectional strip
US20060196136A1 (en) 2005-03-07 2006-09-07 Armacell Enterprise Gmbh Protection profile for a substantially plate-shaped body

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