WO2003071033A1 - Anchoring sheath for mounting a functional body on a substrate - Google Patents

Anchoring sheath for mounting a functional body on a substrate Download PDF

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Publication number
WO2003071033A1
WO2003071033A1 PCT/FR2003/000334 FR0300334W WO03071033A1 WO 2003071033 A1 WO2003071033 A1 WO 2003071033A1 FR 0300334 W FR0300334 W FR 0300334W WO 03071033 A1 WO03071033 A1 WO 03071033A1
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WO
WIPO (PCT)
Prior art keywords
sheath
plug
flange
base part
rim
Prior art date
Application number
PCT/FR2003/000334
Other languages
French (fr)
Inventor
Edmond Mahikian
Original Assignee
Vape Rail International
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Vape Rail International filed Critical Vape Rail International
Priority to EP03709916A priority Critical patent/EP1476603B1/en
Priority to DE60304452T priority patent/DE60304452D1/en
Priority to AU2003214346A priority patent/AU2003214346A1/en
Publication of WO2003071033A1 publication Critical patent/WO2003071033A1/en

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B9/00—Fastening rails on sleepers, or the like
    • E01B9/02—Fastening rails, tie-plates, or chairs directly on sleepers or foundations; Means therefor
    • E01B9/04—Fastening on wooden or concrete sleepers or on masonry without clamp members
    • E01B9/14—Plugs, sleeves, thread linings, or other inserts for holes in sleepers
    • E01B9/18—Plugs, sleeves, thread linings, or other inserts for holes in sleepers for concrete sleepers

Definitions

  • the present invention relates to an anchoring sheath allowing the assembly of a functional member to a substrate in which the sheath is embedded.
  • Said functional member can in particular be a screw or a lag screw and said substrate can be a block of concrete molded around the sheath.
  • a sheath according to the invention is in particular intended to be used for fixing a railway rail to a concrete sleeper.
  • plastic sheaths closed at one of their ends. These sheaths are embedded in concrete molded in the form of a railroad sleeper, so that their open ends open onto the upper face of this sleeper, and receive the lag screws securing the rails.
  • Such a sheath is delivered with a closure cap at its open end, making it possible to avoid the penetration of foreign bodies into its cavity, in particular of water or gravel, when the crosspiece which comprises it is stored outside or placed on the site.
  • These foreign bodies are indeed likely to oppose the screwing of a lag screw in a sheath and, under the pressure of the lag screw, to be at the origin of cracks in the concrete.
  • the caps are punctured by means of a bar to allow the installation of lag screws.
  • caps normally make it possible to ensure a fairly good tightness of the sheaths, without it being possible however to be certain that this tightness is ensured in all cases.
  • the manufacturing tolerances of the caps and sheaths can in fact allow a gap to exist between these caps and sheaths, by which runoff water can penetrate into the cavity of a sheath; the caps may not be fully inserted and held on the sheaths, and may be torn off during handling.
  • the risk of cracking of the concrete in the event of foreign bodies could be limited by equipping the sheath with an external metal shell, formed by two assembled half-shells. This shell, however, significantly increases the cost of manufacturing a sheath.
  • the plug made of destructible material, in particular expanded polystyrene.
  • the plug comprises a cylindrical stud of limited height, intended to be engaged in the corresponding end of the sheath and to be glued to the latter to close this end.
  • Document N ° DD 228 846 also discloses a sheath for fixing a rail to a concrete sleeper, the lower end of which is provided with an internal rim and a plug which can be clipped onto this rim.
  • the plug is injected with the sheath in one piece, and is connected to this sheath by a tearable zone.
  • a peripheral wall makes it possible to guide the plug towards the internal rim of the sheath to allow clipping.
  • the present invention aims to provide a sheath for treating the case of the presence of water in the sheath while overcoming the aforementioned drawbacks of the existing sheath.
  • Its objective is therefore to provide a sheath making it possible to eliminate any risk of deterioration of the substrate surrounding the sheath during the installation of a functional member in this sheath, without the need to use a solvent. to allow the erasure of any foreign bodies present in the sheath.
  • Another objective of the invention is to provide a sheath that remains easy to manufacture and has a perfect seal when the concrete is poured.
  • the sheath concerned is, in a manner known per se, open at its two ends and receives a plug at its "lower" end, that is to say its end intended to be embedded in the substrate.
  • the sheath comprises, at this lower end, a circular rim projecting radially inwards, which delimits an opening of smaller diameter than that of the cavity delimited by the sheath, and
  • the plug is made of elastic compressible material and comprises a prominent central boss as well as a base part, the boss having a cross section greater than that of said opening and comprising a groove arranged in its side wall, at its base, of such that it can be engaged in said opening until penetration of said flange into said groove, and said base portion being shaped to, in this penetration position, be applied against said flange.
  • the plug and the sheath are thus easy to assemble, by engagement of the boss in the lower end of the sheath and penetration of said flange into said groove.
  • the boss largely protrudes inside the sheath and constitutes a compressible buffer allowing, during the fitting of said functional member, the erasure of one or more foreign bodies possibly present in the cavity of sheath.
  • the base part is, for its part, applied against said edge and ensures a perfect seal during the pouring of the concrete. It also forms a lower compressibility reserve for the case where the foreign body or bodies have a relatively large volume.
  • the flange and the plug can be shaped so that the plug can be assembled with the sheath by snapping on said flange into said groove.
  • said flange may be shaped so as to delimit an opening of conical shape, the largest diameter of which is situated on the outside of the sheath, and / or have a rounded zone between its outer face and its face delimiting this opening.
  • the flange and the plug can be shaped so that the plug can be assembled with the sheath by means other than a snap-fastening, in particular by screwing.
  • the central boss of the plug comprises a thread dimensioned to cooperate with the flange, which communicates with said groove.
  • Said base part can extend, in the radial direction, beyond the rim and cover part of the lower end of the sheath, which strengthens the resistance of the mounting of the plug on the sheath. .
  • the lower end of the sheath and said base part may have reciprocal interlocking zones, which increase the contact surface between the base part and the sheath, and help to keep this base part in close application against the lower end of the sheath.
  • this lower end may have an external peripheral recess at the junction of the side wall of the sheath and said flange, and the base part may include a peripheral flange suitable for pressing against the sheath at this recess. .
  • Said reciprocal nesting zones may also be shaped to snap or wedge said base part on the lower end of the sheath.
  • Figure 1 is a view according to a first embodiment, in section passing through the axis of the sheath;
  • Figure 2 is a perspective view of the plug that includes this sheath;
  • Figure 3 is a partial view of the sheath according to a second embodiment, in section passing through the axis of the sheath;
  • Figure 4 is a perspective view of the plug comprises this sheath;
  • Figure 5 is a partial view of the sheath according to a third embodiment, in section passing through the axis of the sheath, and
  • Figure 6 is a half sectional view, on an enlarged scale, of this sheath.
  • Figure 1 shows an anchoring sheath 1 usable for mounting a rail on a concrete sleeper.
  • This sheath 1 is, according to a well-known technique, intended to be embedded in concrete molded in the form of a railway sleeper, so that one of its ends opens onto the upper face of this sleeper, and to receive a lag bolt ensuring the fixing of a rail.
  • the sheath 1 comprises external annular projections 2 for its support in the concrete and an internal thread 3 to allow the screwing of the lag screw.
  • the sheath 1 is open not only at its "upper” end, that is to say that by which the lag screw is intended to be engaged in it, but also at its "lower” end 1b, that is ie that intended to be embedded in concrete, and receives a plug 4 for closing this end
  • the sheath 1 comprises a circular rim 5 projecting radially inwards, which delimits an opening of smaller diameter than that of the cavity delimited by the sheath 1.
  • the plug 4 is made of compressible elastic material. It comprises a middle part 4a of cross section greater than that of the opening delimited by the rim 5, ends 4b of smaller section than this opening and flared transition zones 4c between this middle part 4a and these ends 4b. A groove 6 suitable for receiving closely the rim 5 is arranged at the middle part 4a. As is easily understood, the plug 4 is intended to be inserted into the opening delimited by the flange 5 so as to deform its part 4a inwards, until the flange 5 penetrates into the groove 6. The elastic return the material of the plug 4 maintains this plug 4 in position relative to the sheath 1.
  • the plug 4 For its mechanized insertion, the plug 4 includes cavities at its ends, allowing the support tool to take hold. In said assembly position, the part of the plug 4 engaged in the sheath 1 forms a prominent central boss, which protrudes widely inside the sheath 1 and allows, during the establishment of the lag screw, the erasure of one or more foreign bodies possibly present in the cavity of the sheath 1.
  • the part of the plug 4 located outside the sheath 1 is applied against the flange 5 so as to ensure perfect sealing of the sheath 1 during the pouring of the concrete. This part of the plug 4 located outside the sheath 1 also forms an additional reserve of compressibility relative to the concrete.
  • the plug 4 is intended to be assembled to the sheath 1 by screwing. It includes a prominent central boss 4a in which a thread 7 is arranged, which communicates with the groove 6. This thread 7 allows the screwing of the plug 4 until the base part 4d of the plug 4 is applied tightly against the flange 5.
  • the base part 4d can comprise a cavity opening onto its external face, in particular of hexagonal shape, allowing the support of a tool for mechanically inserting the plug 4 into the sheath 1.
  • the flange 5 delimits an opening of conical shape, the largest diameter of which is situated on the outside of the sheath 1, and has a rounded zone 5a between its outer face and its face delimiting this opening.
  • the outer face of the rim 5 forms a circular projection 8 with a "V" shaped section and a peripheral recess is arranged at the junction of the side wall of the sheath .1 and the rim 5.
  • the base part 4d of the plug 4 extends, in the radial direction, beyond the rim 5 and covers part of the lower end of the sheath 1.
  • This base part 4d comprises a groove shaped to be engaged closely on the projection 8 when the plug 4 is assembled to the sheath 1, and a flange 9 shaped to be engaged in said recess.
  • the end 1b of the sheath 1 and the base part 4d thus have reciprocal interlocking zones which increase the contact surface between the base part 4d and the sheath 1 and contribute to keeping this base part 4d in close application against the lower end of the sheath 1.
  • the invention provides a decisive improvement to the prior art, by providing an anchoring sheath making it possible to eliminate any risk of deterioration of the substrate surrounding the sheath during the installation of a functional organ. in this sheath, without the need to use a solvent to allow the erasure of any foreign bodies present in the sheath.
  • This sheath remains easier to manufacture and has a perfect seal when pouring concrete.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
  • Dowels (AREA)
  • Reinforcement Elements For Buildings (AREA)
  • Bridges Or Land Bridges (AREA)
  • Multi-Conductor Connections (AREA)
  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)

Abstract

Disclosed is a sheath that is open at both ends and receives a cap (4) at the lower end thereof, i.e. the end that is embedded in the substrate. Said lower end of the sheath comprises a circular rim (5) which radially protrudes towards the inside thereof and defines an opening. The inventive cap (4) is made of a compressible elastic material and comprises a raised central boss (4a) and a base (4d), the cross section of said boss (4a) being larger than that of the opening. The boss (4a) is provided with a groove (6) receiving said rim (5). The base (4d) of the cap (4) is formed such that said base (4d) engages with the rim (5) when the cap is in a mounted position.

Description

GAINE D'ANCRAGE PERMETTANT L'ASSEMBLAGE ANCHORING SHEATH FOR ASSEMBLY
D'UN ORGANE FONCTIONNEL A UN SUBSTRAT La présente invention concerne une gaine d'ancrage permettant l'assemblage d'un organe fonctionnel à un substrat dans lequel est noyée la gaine. Ledit organe fonctionnel peut en particulier être une vis ou un tire-fond et ledit substrat peut être un bloc de béton moulé autour de la gaine.FROM A FUNCTIONAL MEMBER TO A SUBSTRATE The present invention relates to an anchoring sheath allowing the assembly of a functional member to a substrate in which the sheath is embedded. Said functional member can in particular be a screw or a lag screw and said substrate can be a block of concrete molded around the sheath.
Une gaine selon l'invention est notamment destinée à être utilisée pour la fixation d'un rail ferroviaire sur une traverse en béton.A sheath according to the invention is in particular intended to be used for fixing a railway rail to a concrete sleeper.
Dans cette application spécifique, il est bien connu d'utiliser des gaines en matière synthétique fermées à une de leurs extrémités. Ces gaines sont noyées dans du béton moulé à la forme d'une traverse de chemin de fer, de telle sorte que leurs extrémités ouvertes débouchent sur la face supérieure de cette traverse, et reçoivent les tire-fonds assurant la fixation des rails.In this specific application, it is well known to use plastic sheaths closed at one of their ends. These sheaths are embedded in concrete molded in the form of a railroad sleeper, so that their open ends open onto the upper face of this sleeper, and receive the lag screws securing the rails.
Une telle gaine est livrée avec un capuchon de fermeture de son extrémité ouverte permettant d'éviter la pénétration de corps étrangers dans sa cavité, notamment d'eau ou de gravillons, lorsque la traverse qui la comporte est stockée en extérieur ou mise en place sur le chantier. Ces corps étrangers sont en effet susceptibles de s'opposer au vissage d'un tire-fond dans une gaine et, sous la pression du tire-fond, d'être à l'origine de fissurations du béton. Lors de la fixation du rail, les capuchons sont crevés au moyen d'une barre pour permettre la mise en place des tire-fonds.Such a sheath is delivered with a closure cap at its open end, making it possible to avoid the penetration of foreign bodies into its cavity, in particular of water or gravel, when the crosspiece which comprises it is stored outside or placed on the site. These foreign bodies are indeed likely to oppose the screwing of a lag screw in a sheath and, under the pressure of the lag screw, to be at the origin of cracks in the concrete. When fixing the rail, the caps are punctured by means of a bar to allow the installation of lag screws.
Ces capuchons permettent normalement d'assurer une assez bonne étanchéité des gaines, sans que l'on puisse toutefois être certain que cette étanchéité est assurée dans tous les cas. En effet, les tolérances de fabrication des capuchons et des gaines peuvent en effet laisser exister un interstice entre ces capuchons et gaines, par lequel de l'eau de ruissellement peut pénétrer dans la cavité d'une gaine ; les capuchons peuvent ne pas être parfaitement enfoncés et maintenus sur les gaines, et peuvent être arrachés lors des manipulations. Le risque de fissuration du béton en cas de corps étrangers a pu être limité en équipant la gaine d'une coque métallique extérieure, formée par deux demi-coquilles assemblées. Cette coque augmente toutefois sensiblement le coût de fabrication d'une gaine.These caps normally make it possible to ensure a fairly good tightness of the sheaths, without it being possible however to be certain that this tightness is ensured in all cases. Indeed, the manufacturing tolerances of the caps and sheaths can in fact allow a gap to exist between these caps and sheaths, by which runoff water can penetrate into the cavity of a sheath; the caps may not be fully inserted and held on the sheaths, and may be torn off during handling. The risk of cracking of the concrete in the event of foreign bodies could be limited by equipping the sheath with an external metal shell, formed by two assembled half-shells. This shell, however, significantly increases the cost of manufacturing a sheath.
Pour remédier à ce même problème de fissuration, il a été conçu de réaliser une gaine ouverte à ses deux extrémités et d'équiper l'extrémitéTo remedy this same cracking problem, it was designed to make a sheath open at its two ends and to equip the end
"inférieure" de la gaine, c'est-à-dire l'extrémité destinée à être noyée dans le béton, d'un bouchon en matériau destructible, notamment en polystyrène expansé. Dans cette gaine, le bouchon comprend un plot cylindrique de hauteur limitée, destiné à être engagé dans l'extrémité correspondante de la gaine et à être collé à celle-ci pour fermer cette extrémité. Lors du moulage du béton, une aiguille est mise en place dans le moule de manière à être fichée dans le bouchon et à rejoindre la face du moule opposée à celle sur laquelle se trouve la gaine, puis le béton est moulé autour de cette gaine et de cette aiguille. L'aiguille est retirée lors du démoulage et permet d'aménager un conduit inférieur d'écoulement. Au moment de la mise en place du tire-fond, le bouchon est éliminé au moyen d'un solvant, ce qui permet de libérer ledit conduit inférieur d'écoulement, pour permettre l'évacuation de l'eau éventuellement contenue dans la gaine."lower" of the sheath, that is to say the end intended to be embedded in the concrete, a plug made of destructible material, in particular expanded polystyrene. In this sheath, the plug comprises a cylindrical stud of limited height, intended to be engaged in the corresponding end of the sheath and to be glued to the latter to close this end. When molding concrete, a needle is placed in the mold so as to be stuck in the plug and to join the face of the mold opposite to that on which the sheath is located, then the concrete is molded around this sheath and of this needle. The needle is withdrawn during demolding and makes it possible to arrange a lower flow conduit. When installing the lag screw, the plug is removed by means of a solvent, which makes it possible to release said lower flow conduit, to allow the evacuation of the water possibly contained in the sheath.
Cette technique, si elle est efficace à l'égard d'une faible quantité d'eau non gelée, n'est en revanche pas efficace lorsque de l'eau en quantité relativement importante se trouve dans le fond de la gaine, ou lorsque de l'eau gelée ou des gravillons se trouve dans ce même fond. L'eau en quantité relativement importante ou l'eau gelée empêche en effet le solvant de venir au contact du bouchon, et les gravillons ne peuvent s'évacuer par ledit conduit inférieur d'écoulement, dont la section est limitée. La nécessité d'utiliser un solvant sur le chantier, en quantité déterminée pour chaque gaine, est de plus une contrainte pratique certaine.This technique, if it is effective with regard to a small quantity of unfrozen water, on the other hand is not effective when water in relatively large quantity is at the bottom of the sheath, or when frozen water or gravel is in this same bottom. The water in relatively large quantity or the frozen water prevents the solvent from coming into contact with the plug, and the gravel cannot be evacuated by said lower flow conduit, the cross section of which is limited. The need to use a solvent on site, in a quantity determined for each sheath, is moreover a certain practical constraint.
On connaît également par le document N° DD 228 846, décrit une gaine pour fixer un rail sur une traverse en béton, dont l'extrémité inférieure est pourvue d'un rebord interne et d'un bouchon pouvant être clipsé sur ce rebord. Le bouchon est injecté avec la gaine en une pièce, et est relié à cette gaine par une zone déchirable. Une paroi périphérique permet de guider le bouchon vers le rebord interne de la gaine pour permettre le clipsage.Document N ° DD 228 846 also discloses a sheath for fixing a rail to a concrete sleeper, the lower end of which is provided with an internal rim and a plug which can be clipped onto this rim. The plug is injected with the sheath in one piece, and is connected to this sheath by a tearable zone. A peripheral wall makes it possible to guide the plug towards the internal rim of the sheath to allow clipping.
Ce document ainsi décrit une gaine à bouchon en un matériau de même nature que la cheville, et donc relativement rigide, ne permettant pas de traiter le cas de la présence d'eau dans la gaine.This document thus describes a plug sheath made of a material of the same kind as the dowel, and therefore relatively rigid, not making it possible to deal with the case of the presence of water in the sheath.
La présente invention vise à fournir une gaine permettant traiter le cas de la présence d'eau dans la gaine tout en remédiant aux inconvénients précités de la gaine existante.The present invention aims to provide a sheath for treating the case of the presence of water in the sheath while overcoming the aforementioned drawbacks of the existing sheath.
Son objectif est donc de fournir une gaine permettant d'éliminer tout risque de détérioration du substrat entourant la gaine lors de la mise en place d'un organe fonctionnel dans cette gaine, sans nécessité d'utiliser un solvant pour permettre l'effacement d'éventuels corps étrangers présents dans la gaine.Its objective is therefore to provide a sheath making it possible to eliminate any risk of deterioration of the substrate surrounding the sheath during the installation of a functional member in this sheath, without the need to use a solvent. to allow the erasure of any foreign bodies present in the sheath.
Un autre objectif de l'invention est de fournir une gaine restant facile à fabriquer et présent une parfaite étanchéité au moment du coulage du béton.Another objective of the invention is to provide a sheath that remains easy to manufacture and has a perfect seal when the concrete is poured.
La gaine concernée est, de manière connue en soi, ouverte à ses deux extrémités et reçoit un bouchon à son extrémité "inférieure", c'est-à-dire son extrémité destinée à être noyée dans le substrat. Selon l'invention, - la gaine comprend, au niveau de cette extrémité inférieure, un rebord circulaire faisant saillie radialement vers l'intérieur, qui délimite une ouverture de plus faible diamètre que celui de la cavité délimitée par la gaine, etThe sheath concerned is, in a manner known per se, open at its two ends and receives a plug at its "lower" end, that is to say its end intended to be embedded in the substrate. According to the invention, the sheath comprises, at this lower end, a circular rim projecting radially inwards, which delimits an opening of smaller diameter than that of the cavity delimited by the sheath, and
- le bouchon est en matériau élastique compressible et comprend un bossage central proéminent ainsi qu'une partie de base, le bossage ayant une section supérieure à celle de ladite ouverture et comprenant une gorge aménagée dans sa paroi latérale, au niveau de sa base, de telle sorte qu'il puisse être engagé dans ladite ouverture jusqu'à pénétration dudit rebord dans ladite gorge, et ladite partie de base étant conformée pour, dans cette position de pénétration, être appliquée contre ledit rebord.the plug is made of elastic compressible material and comprises a prominent central boss as well as a base part, the boss having a cross section greater than that of said opening and comprising a groove arranged in its side wall, at its base, of such that it can be engaged in said opening until penetration of said flange into said groove, and said base portion being shaped to, in this penetration position, be applied against said flange.
Le bouchon et la gaine sont ainsi faciles à assembler, par engagement du bossage dans l'extrémité inférieure de la gaine et pénétration dudit rebord dans ladite gorge. Lorsque cet assemblage est réalisé, le bossage dépasse largement à l'intérieur de la gaine et constitue un tampon compressible permettant, lors de la mise en place dudit organe fonctionnel, l'effacement d'un ou plusieurs corps étrangers éventuellement présents dans la cavité de la gaine.The plug and the sheath are thus easy to assemble, by engagement of the boss in the lower end of the sheath and penetration of said flange into said groove. When this assembly is carried out, the boss largely protrudes inside the sheath and constitutes a compressible buffer allowing, during the fitting of said functional member, the erasure of one or more foreign bodies possibly present in the cavity of sheath.
La partie de base est, quant à elle, appliquée contre ledit rebord et assure une parfaite étanchéité lors du coulage du béton. Elle forme en outre une réserve inférieure de compressibilité pour le cas où le ou les corps étrangers auraient un volume relativement important.The base part is, for its part, applied against said edge and ensures a perfect seal during the pouring of the concrete. It also forms a lower compressibility reserve for the case where the foreign body or bodies have a relatively large volume.
Grâce à l'invention, il est ainsi possible de s'affranchir des problèmes liés à l'étanchéité incertaine que présentent les capuchons fermant l'extrémité "supérieure" des gaines, et la réserve de compressibilité formée par le bouchon est suffisamment importante pour être efficace dans tous les cas. Le rebord et le bouchon peuvent être conformés de telle sorte que le bouchon soit assemblable à la gaine par encliquetage dudit rebord dans ladite gorge.Thanks to the invention, it is thus possible to overcome the problems associated with the uncertain sealing presented by the caps closing the "upper" end of the sheaths, and the compressibility reserve formed by the plug is large enough to be effective in all cases. The flange and the plug can be shaped so that the plug can be assembled with the sheath by snapping on said flange into said groove.
Dans ce cas, ledit rebord peut être conformé de manière à délimiter une ouverture de forme conique, dont le plus grand diamètre est situé sur l'extérieur de la gaine, et/ou présenter une zone arrondie entre sa face extérieure et sa face délimitant cette ouverture.In this case, said flange may be shaped so as to delimit an opening of conical shape, the largest diameter of which is situated on the outside of the sheath, and / or have a rounded zone between its outer face and its face delimiting this opening.
Ces dispositions facilitent l'engagement du bossage au travers de l'ouverture. Le rebord et le bouchon peuvent être conformés de telle sorte que le bouchon soit assemblable à la gaine par d'autres moyens qu'un encliquetage, notamment par vissage.These provisions facilitate the engagement of the boss through the opening. The flange and the plug can be shaped so that the plug can be assembled with the sheath by means other than a snap-fastening, in particular by screwing.
Dans le cas d'un assemblage par vissage, le bossage central du bouchon comprend un filet dimensionné pour coopérer avec le rebord, qui communique avec ladite gorge.In the case of an assembly by screwing, the central boss of the plug comprises a thread dimensioned to cooperate with the flange, which communicates with said groove.
Ladite partie de base peut s'étendre, dans la direction radiale, au-delà du rebord et recouvrir une partie de l'extrémité inférieure de la gaine, ce qui renforce la résistance du montage du bouchon sur la gaine. .Said base part can extend, in the radial direction, beyond the rim and cover part of the lower end of the sheath, which strengthens the resistance of the mounting of the plug on the sheath. .
L'extrémité inférieure de la gaine et ladite partie de base peuvent présenter des zones d'emboîtement réciproque, qui augmentent la surface de contact entre la partie de base et la gaine, et contribuent à maintenir cette partie de base en application étroite contre l'extrémité inférieure de la gaine. Notamment, cette extrémité inférieure peut présenter un évidement périphérique extérieur au niveau de la jonction de la paroi latérale de la gaine et dudit rebord, et la partie de base peut comprendre un rebord périphérique propre à s'appliquer contre la gaine au niveau de cet évidement.The lower end of the sheath and said base part may have reciprocal interlocking zones, which increase the contact surface between the base part and the sheath, and help to keep this base part in close application against the lower end of the sheath. In particular, this lower end may have an external peripheral recess at the junction of the side wall of the sheath and said flange, and the base part may include a peripheral flange suitable for pressing against the sheath at this recess. .
Lesdites zones d'emboîtement réciproque peuvent en outre être conformées pour réaliser un encliquetage ou un coincement de ladite partie de base sur l'extrémité inférieure de la gaine. Pour sa bonne compréhension, l'invention est à nouveau décrite ci- dessous en référence au dessin schématique annexé représentant, à titre d'exemple non limitatif, plusieurs formes de réalisation possibles de la gaine d'ancrage qu'elle concerne.Said reciprocal nesting zones may also be shaped to snap or wedge said base part on the lower end of the sheath. For a good understanding, the invention is again described below with reference to the appended diagrammatic drawing representing, by way of nonlimiting example, several possible embodiments of the anchoring sheath which it concerns.
La figure 1 en est une vue selon une première forme de réalisation, en coupe passant par l'axe de la gaine ; la figure 2 est une vue en perspective du bouchon que comprend cette gaine ; la figure 3 est une vue partielle de la gaine selon une deuxième forme de réalisation, en coupe passant par l'axe de la gaine ; la figure 4 est une vue en perspective du bouchon comprend cette gaine ; la figure 5 est une vue partielle de la gaine selon une troisième forme de réalisation, en coupe passant par l'axe de la gaine, et la figure 6 est une demi-vue en coupe, à échelle agrandie, de cette gaine.Figure 1 is a view according to a first embodiment, in section passing through the axis of the sheath; Figure 2 is a perspective view of the plug that includes this sheath; Figure 3 is a partial view of the sheath according to a second embodiment, in section passing through the axis of the sheath; Figure 4 is a perspective view of the plug comprises this sheath; Figure 5 is a partial view of the sheath according to a third embodiment, in section passing through the axis of the sheath, and Figure 6 is a half sectional view, on an enlarged scale, of this sheath.
Par simplification, les éléments ou partie d'éléments qui se retrouvent d'une forme de réalisation à une autre sont désignés par les mêmes références numériques.For simplicity, the elements or part of elements which are found from one embodiment to another are designated by the same reference numerals.
La figure 1 représente une gaine d'ancrage 1 utilisable pour le montage d'un rail ferroviaire sur une traverse en béton. Cette gaine 1 est, selon une technique bien connue, destinée à être noyée dans du béton moulé à la forme d'une traverse de chemin de fer, de telle sorte que l'une de ses extrémités débouche sur la face supérieure de cette traverse, et à recevoir un tire-fond assurant la fixation d'un rail. La gaine 1 comprend des saillies annulaires extérieures 2 pour sa prise d'appui dans le béton et un filet intérieur 3 pour permettre le vissage du tire-fond.Figure 1 shows an anchoring sheath 1 usable for mounting a rail on a concrete sleeper. This sheath 1 is, according to a well-known technique, intended to be embedded in concrete molded in the form of a railway sleeper, so that one of its ends opens onto the upper face of this sleeper, and to receive a lag bolt ensuring the fixing of a rail. The sheath 1 comprises external annular projections 2 for its support in the concrete and an internal thread 3 to allow the screwing of the lag screw.
La gaine 1 est ouverte non seulement à son extrémité "supérieure", c'est-à-dire celle par laquelle le tire-fond est destiné à être engagé en elle, mais également à son extrémité "inférieure" 1b, c'est-à-dire celle destinée à être noyée dans le béton, et reçoit un bouchon 4 de fermeture de cette extrémitéThe sheath 1 is open not only at its "upper" end, that is to say that by which the lag screw is intended to be engaged in it, but also at its "lower" end 1b, that is ie that intended to be embedded in concrete, and receives a plug 4 for closing this end
1b.1b.
Au niveau de cette extrémité 1b, la gaine 1 comprend un rebord circulaire 5 faisant saillie radialement vers l'intérieur, qui délimite une ouverture de plus faible diamètre que celui de la cavité délimitée par la gaine 1.At this end 1b, the sheath 1 comprises a circular rim 5 projecting radially inwards, which delimits an opening of smaller diameter than that of the cavity delimited by the sheath 1.
Le bouchon 4 est en matériau élastique compressible. Il comprend une partie médiane 4a de section transversale supérieure à celle de l'ouverture délimitée par le rebord 5, des extrémités 4b de plus faible section que cette ouverture et des zones de transition évasées 4c entre cette partie médiane 4a et ces extrémités 4b. Une gorge 6 propre à recevoir étroitement le rebord 5 est aménagée au niveau de la partie médiane 4a. Comme cela se comprend aisément, le bouchon 4 est destiné à être inséré dans l'ouverture délimitée par le rebord 5 de manière à déformer vers l'intérieur sa partie 4a, jusqu'à pénétration du rebord 5 dans la gorge 6. Le rappel élastique du matériau du bouchon 4 assure le maintien de ce bouchon 4 en position par rapport à la gaine 1.The plug 4 is made of compressible elastic material. It comprises a middle part 4a of cross section greater than that of the opening delimited by the rim 5, ends 4b of smaller section than this opening and flared transition zones 4c between this middle part 4a and these ends 4b. A groove 6 suitable for receiving closely the rim 5 is arranged at the middle part 4a. As is easily understood, the plug 4 is intended to be inserted into the opening delimited by the flange 5 so as to deform its part 4a inwards, until the flange 5 penetrates into the groove 6. The elastic return the material of the plug 4 maintains this plug 4 in position relative to the sheath 1.
Pour son insertion de manière mécanisée, le bouchon 4 comprend des cavités à ses extrémités, permettant la prise d'appui d'un outil d'insertion. Dans ladite position d'assemblage, la partie du bouchon 4 engagée dans la gaine 1 forme un bossage central proéminent, qui dépasse largement à l'intérieur de la gaine 1 et permet, lors de la mise en place du tire-fond, l'effacement d'un ou plusieurs corps étrangers éventuellement présents dans la cavité de la gaine 1. La partie du bouchon 4 située hors de la gaine 1 est appliquée contre le rebord 5 de manière à assurer une parfaite étanchéité de la gaine 1 lors du coulage du béton. Cette partie du bouchon 4 située hors de la gaine 1 forme par ailleurs une réserve supplémentaire de compressibilité par rapport au béton.For its mechanized insertion, the plug 4 includes cavities at its ends, allowing the support tool to take hold. In said assembly position, the part of the plug 4 engaged in the sheath 1 forms a prominent central boss, which protrudes widely inside the sheath 1 and allows, during the establishment of the lag screw, the erasure of one or more foreign bodies possibly present in the cavity of the sheath 1. The part of the plug 4 located outside the sheath 1 is applied against the flange 5 so as to ensure perfect sealing of the sheath 1 during the pouring of the concrete. This part of the plug 4 located outside the sheath 1 also forms an additional reserve of compressibility relative to the concrete.
Dans la forme de réalisation représentée sur les figures 3 et 4, le bouchon 4 est destiné à être assemblé à la gaine 1 par vissage. Il comprend un bossage central proéminent 4a dans lequel est aménagé un filet 7, qui communique avec la gorge 6. Ce filet 7 permet le vissage du bouchon 4 jusqu'à application étroite de la partie de base 4d du bouchon 4 contre le rebord 5.In the embodiment shown in Figures 3 and 4, the plug 4 is intended to be assembled to the sheath 1 by screwing. It includes a prominent central boss 4a in which a thread 7 is arranged, which communicates with the groove 6. This thread 7 allows the screwing of the plug 4 until the base part 4d of the plug 4 is applied tightly against the flange 5.
La partie de base 4d peut comprendre une cavité débouchant sur sa face extérieure, notamment de forme hexagonale, permettant la prise d'appui d'un outil d'insertion de manière mécanisée du bouchon 4 dans la gaine 1.The base part 4d can comprise a cavity opening onto its external face, in particular of hexagonal shape, allowing the support of a tool for mechanically inserting the plug 4 into the sheath 1.
Dans la forme de réalisation montrée sur les figures 5 et 6, le rebord 5 délimite une ouverture de forme conique, dont le plus grand diamètre est situé sur l'extérieur de la gaine 1 , et présente une zone arrondie 5a entre sa face extérieure et sa face délimitant cette ouverture. Ces dispositions facilitent l'engagement du bossage 4a au travers de cette ouverture.In the embodiment shown in FIGS. 5 and 6, the flange 5 delimits an opening of conical shape, the largest diameter of which is situated on the outside of the sheath 1, and has a rounded zone 5a between its outer face and its face delimiting this opening. These provisions facilitate the engagement of the boss 4a through this opening.
La face extérieure du rebord 5 forme une saillie circulaire 8 à section en forme de "V" et un évidement périphérique est aménagé au niveau de la jonction de la paroi latérale de la gaine .1 et du rebord 5. La partie de base 4d du bouchon 4 s'étend, dans la direction radiale, au-delà du rebord 5 et recouvre une partie de l'extrémité inférieure de la gaine 1. Cette partie de base 4d comprend une gorge conformée pour être engagée étroitement sur la saillie 8 lorsque le bouchon 4 est assemblé à la gaine 1 , et un rebord 9 conformé être engagé dans ledit évidement.The outer face of the rim 5 forms a circular projection 8 with a "V" shaped section and a peripheral recess is arranged at the junction of the side wall of the sheath .1 and the rim 5. The base part 4d of the plug 4 extends, in the radial direction, beyond the rim 5 and covers part of the lower end of the sheath 1. This base part 4d comprises a groove shaped to be engaged closely on the projection 8 when the plug 4 is assembled to the sheath 1, and a flange 9 shaped to be engaged in said recess.
L'extrémité 1b de la gaine 1 et la partie de base 4d présentent ainsi des zones d'emboîtement réciproque qui augmentent la surface de contact entre la partie de base 4d et la gaine 1 et contribuent à maintenir cette partie de base 4d en application étroite contre l'extrémité inférieure de la gaine 1.The end 1b of the sheath 1 and the base part 4d thus have reciprocal interlocking zones which increase the contact surface between the base part 4d and the sheath 1 and contribute to keeping this base part 4d in close application against the lower end of the sheath 1.
H apparaît de ce qui précède que l'invention apporte une amélioration déterminante à la technique antérieure, en fournissant une gaine d'ancrage permettant d'éliminer tout risque de détérioration du substrat entourant la gaine lors de la mise en place d'un organe fonctionnel dans cette gaine, sans nécessité d'utiliser un solvant pour permettre l'effacement d'éventuels corps étrangers présents dans la gaine. Cette gaine reste de plus facile à fabriquer et présente une parfaite étanchéité au moment du coulage du béton.It appears from the above that the invention provides a decisive improvement to the prior art, by providing an anchoring sheath making it possible to eliminate any risk of deterioration of the substrate surrounding the sheath during the installation of a functional organ. in this sheath, without the need to use a solvent to allow the erasure of any foreign bodies present in the sheath. This sheath remains easier to manufacture and has a perfect seal when pouring concrete.
Il va de soi que l'invention n'est pas limitée à la forme de réalisation décrite ci-dessus à titre d'exemple mais qu'elle en embrasse au contraire toutes les variantes de réalisation entrant dans le champ de protection défini par les revendications ci-annexées. It goes without saying that the invention is not limited to the embodiment described above by way of example but that, on the contrary, it embraces all the variant embodiments falling within the scope of protection defined by the claims. appended.

Claims

REVENDICATIONS
1 - Gaine d'ancrage (1) permettant l'assemblage d'un organe fonctionnel à un substrat dans lequel est noyée la gaine (1), cette gaine (1) étant ouverte à ses deux extrémités et recevant un bouchon (4) à son extrémité "inférieure" (1b), c'est-à-dire son extrémité destinée à être noyée dans le substrat, cette gaine (1) comprenant, au niveau de ladite extrémité inférieure, un rebord circulaire (5) faisant saillie radialement vers l'intérieur, qui délimite une ouverture de plus faible diamètre que celui de la cavité délimitée par la gaine (1) ; gaine (1) caractérisée en ce que le bouchon (4) est en matériau élastique compressible et comprend un bossage central proéminent (4a) ainsi qu'une partie de base (4a, 4b, 4c ; 4d), le bossage (4a) ayant une section supérieure à celle de ladite ouverture et comprenant une gorge (6) aménagée dans sa paroi latérale, au niveau de sa base, de telle sorte qu'il puisse être engagé dans ladite ouverture jusqu'à pénétration dudit rebord (5) dans ladite gorge (6), et ladite partie de base (4a, 4b, 4c ; 4d) étant conformée pour, dans cette position de pénétration, être appliquée contre ledit rebord (5).1 - Anchoring sheath (1) allowing the assembly of a functional member to a substrate in which the sheath (1) is embedded, this sheath (1) being open at its two ends and receiving a plug (4) at its "lower" end (1b), that is to say its end intended to be embedded in the substrate, this sheath (1) comprising, at said lower end, a circular rim (5) projecting radially towards the interior, which delimits an opening of smaller diameter than that of the cavity delimited by the sheath (1); sheath (1) characterized in that the plug (4) is made of elastic compressible material and comprises a prominent central boss (4a) as well as a base part (4a, 4b, 4c; 4d), the boss (4a) having a section greater than that of said opening and comprising a groove (6) arranged in its side wall, at its base, so that it can be engaged in said opening until penetration of said flange (5) in said groove (6), and said base part (4a, 4b, 4c; 4d) being shaped to, in this penetrating position, be applied against said flange (5).
2 - Gaine (1) selon la revendication 1 , caractérisée en ce que le rebord (5) et le bouchon (4) sont conformés de telle sorte que le bouchon (4) est assemblable à la gaine (1) par encliquetage dudit rebord (5) dans ladite gorge (6).2 - Sheath (1) according to claim 1, characterized in that the flange (5) and the plug (4) are shaped so that the plug (4) can be assembled with the sheath (1) by snap-fastening of said flange ( 5) in said groove (6).
3 - Gaine (1) selon la revendication 2, caractérisée en ce que le rebord (5) est conformé de manière à délimiter une ouverture de forme conique, dont le plus grand diamètre est situé sur l'extérieur de la gaine (1).3 - Sheath (1) according to claim 2, characterized in that the flange (5) is shaped so as to delimit an opening of conical shape, the largest diameter of which is located on the outside of the sheath (1).
4 - Gaine (1) selon la revendication 2 ou la revendication 3, caractérisée en ce que le rebord (5) présente une zone arrondie entre la face extérieure de ce rebord (5) et la face de ce rebord (5) délimitant ladite ouverture. 5 - Gaine (1) selon la revendication 1, caractérisée en ce que le rebord (5) et le bouchon (4) sont conformés de telle sorte que le bouchon (4) est assemblable à la gaine (1) par vissage, le bossage central du bouchon (4) comprenant un filet dimensionné pour coopérer avec ledit rebord (5), ce filet communiquant avec ladite gorge (6). 6 - Gaine (1) selon l'une des revendications 1 â 5, caractérisée en ce que ladite partie de base (4d) s'étend, dans la direction radiale, au-delà du rebord (5) et recouvre une partie de l'extrémité inférieure (1b) de la gaine (1).4 - Sheath (1) according to claim 2 or claim 3, characterized in that the rim (5) has a rounded area between the outer face of this rim (5) and the face of this rim (5) delimiting said opening . 5 - Sheath (1) according to claim 1, characterized in that the flange (5) and the plug (4) are shaped so that the plug (4) can be assembled to the sheath (1) by screwing, the boss central plug (4) comprising a thread sized to cooperate with said flange (5), this thread communicating with said groove (6). 6 - Sheath (1) according to one of claims 1 to 5, characterized in that said base part (4d) extends, in the radial direction, beyond the flange (5) and covers part of the 'lower end (1b) of the sheath (1).
7 - Gaine (1) selon l'une des revendications 1 à 6, caractérisée en ce que l'extrémité inférieure (1b) de la gaine (1) et ladite partie de base (4d) présentent des zones d'emboîtement réciproque.7 - Sheath (1) according to one of claims 1 to 6, characterized in that the lower end (1b) of the sheath (1) and said base part (4d) have reciprocal nesting zones.
8 - Gaine (1) selon la revendication 7, caractérisée en ce que l'extrémité inférieure de la gaine (1) présente un évidement périphérique extérieur au niveau de la jonction de la paroi latérale de la gaine (1) et dudit rebord (5), et en ce que ladite partie de base (4d) comprend un rebord périphérique (9) propre à s'appliquer contre la gaine (1) au niveau de cet évidement.8 - Sheath (1) according to claim 7, characterized in that the lower end of the sheath (1) has an outer peripheral recess at the junction of the side wall of the sheath (1) and said flange (5 ), and in that said base part (4d) comprises a peripheral rim (9) adapted to be applied against the sheath (1) at the level of this recess.
9 - Gaine (1) selon la revendication 7 ou la revendication 8, caractérisée en ce que lesdites zones d'emboîtement réciproque sont conformées pour réaliser un encliquetage ou un coincement de ladite partie de base (4d) sur l'extrémité inférieure (1 b) de la gaine (1).9 - Sheath (1) according to claim 7 or claim 8, characterized in that said reciprocal nesting zones are shaped to achieve a snap-fastening or a wedging of said base part (4d) on the lower end (1b ) of the sheath (1).
10 - Utilisation de la gaine d'ancrage (1) selon l'une des revendications 1 à 9 pour le montage d'un rail ferroviaire sur une traverse en béton. 10 - Use of the anchoring sheath (1) according to one of claims 1 to 9 for mounting a rail rail on a concrete sleeper.
PCT/FR2003/000334 2002-02-18 2003-02-04 Anchoring sheath for mounting a functional body on a substrate WO2003071033A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP03709916A EP1476603B1 (en) 2002-02-18 2003-02-04 Anchoring sheath for mounting a functional body on a substrate
DE60304452T DE60304452D1 (en) 2002-02-18 2003-02-04 ANCHOR SLEEVE FOR CONNECTING A FUNCTIONAL LINK TO A SUBSTRATE
AU2003214346A AU2003214346A1 (en) 2002-02-18 2003-02-04 Anchoring sheath for mounting a functional body on a substrate

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR02/02030 2002-02-18
FR0202030A FR2836165B1 (en) 2002-02-18 2002-02-18 ANCHORING SHEATH FOR ASSEMBLING A FUNCTIONAL MEMBER TO A SUBSTRATE IN WHICH THE SHEATH IS DRIED

Publications (1)

Publication Number Publication Date
WO2003071033A1 true WO2003071033A1 (en) 2003-08-28

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Application Number Title Priority Date Filing Date
PCT/FR2003/000334 WO2003071033A1 (en) 2002-02-18 2003-02-04 Anchoring sheath for mounting a functional body on a substrate

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EP (1) EP1476603B1 (en)
AT (1) ATE322581T1 (en)
AU (1) AU2003214346A1 (en)
DE (1) DE60304452D1 (en)
ES (1) ES2260613T3 (en)
FR (1) FR2836165B1 (en)
WO (1) WO2003071033A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1777344A1 (en) * 2005-10-24 2007-04-25 Edmond Mahikian Plug for repairing an anchoring device for a screw for railway sleeper
WO2012098320A1 (en) * 2011-01-20 2012-07-26 Vape Rail International Anchoring device for securing a railway rail to a sleeper

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2575282A1 (en) * 2004-07-26 2006-02-02 Global Engineered Fasteners Pty Ltd Attachment of components to composite materials

Citations (4)

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Publication number Priority date Publication date Assignee Title
DD228846A1 (en) * 1984-11-12 1985-10-23 Plasta Werke Sonneberg Veb DUEBEL FROM PLASTE, PREFERABLY FOR CONCRETE SLEEVES
US4948089A (en) * 1986-08-27 1990-08-14 Wayss & Freytag Aktiengesellschaft Concrete mold with arrangement for mounting tubular components
US5740651A (en) * 1994-03-18 1998-04-21 Vape Rail International S.A. Anchoring sleeve
EP1116826A1 (en) * 2000-01-10 2001-07-18 ARS Industries Anchoring dowel for fixation in a concrete body

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD228846A1 (en) * 1984-11-12 1985-10-23 Plasta Werke Sonneberg Veb DUEBEL FROM PLASTE, PREFERABLY FOR CONCRETE SLEEVES
US4948089A (en) * 1986-08-27 1990-08-14 Wayss & Freytag Aktiengesellschaft Concrete mold with arrangement for mounting tubular components
US5740651A (en) * 1994-03-18 1998-04-21 Vape Rail International S.A. Anchoring sleeve
EP1116826A1 (en) * 2000-01-10 2001-07-18 ARS Industries Anchoring dowel for fixation in a concrete body

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1777344A1 (en) * 2005-10-24 2007-04-25 Edmond Mahikian Plug for repairing an anchoring device for a screw for railway sleeper
FR2892429A1 (en) * 2005-10-24 2007-04-27 Edmond Mahikian INSERT FOR THE RESTORATION OF A RAILWAY RAIL ANCHOR TO A WOODEN TRAVERSE
WO2012098320A1 (en) * 2011-01-20 2012-07-26 Vape Rail International Anchoring device for securing a railway rail to a sleeper
FR2970717A1 (en) * 2011-01-20 2012-07-27 Vape Rail Int ANCHORING DEVICE FOR FASTENING A RAILWAY RAIL RAIL TO A TRAVERSE

Also Published As

Publication number Publication date
FR2836165A1 (en) 2003-08-22
EP1476603A1 (en) 2004-11-17
ATE322581T1 (en) 2006-04-15
FR2836165B1 (en) 2004-11-26
EP1476603B1 (en) 2006-04-05
DE60304452D1 (en) 2006-05-18
AU2003214346A1 (en) 2003-09-09
ES2260613T3 (en) 2006-11-01

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