FR2591145A1 - Stiffener for tubular profiles made from composite material - Google Patents

Stiffener for tubular profiles made from composite material Download PDF

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Publication number
FR2591145A1
FR2591145A1 FR8518377A FR8518377A FR2591145A1 FR 2591145 A1 FR2591145 A1 FR 2591145A1 FR 8518377 A FR8518377 A FR 8518377A FR 8518377 A FR8518377 A FR 8518377A FR 2591145 A1 FR2591145 A1 FR 2591145A1
Authority
FR
France
Prior art keywords
composite material
stiffener
tube
mold
profiles made
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.)
Pending
Application number
FR8518377A
Other languages
French (fr)
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to FR8518377A priority Critical patent/FR2591145A1/en
Publication of FR2591145A1 publication Critical patent/FR2591145A1/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D99/00—Subject matter not provided for in other groups of this subclass
    • B29D99/0003—Producing profiled members, e.g. beams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/80—Component parts, details or accessories; Auxiliary operations
    • B29C53/8008—Component parts, details or accessories; Auxiliary operations specially adapted for winding and joining
    • B29C53/805—Applying axial reinforcements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/80—Component parts, details or accessories; Auxiliary operations
    • B29C53/82—Cores or mandrels
    • B29C53/821—Mandrels especially adapted for winding and joining
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/88—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts characterised primarily by possessing specific properties, e.g. electrically conductive or locally reinforced
    • B29C70/887—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts characterised primarily by possessing specific properties, e.g. electrically conductive or locally reinforced locally reinforced, e.g. by fillers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D99/00—Subject matter not provided for in other groups of this subclass
    • B29D99/001—Producing wall or panel-like structures, e.g. for hulls, fuselages, or buildings
    • B29D99/0014—Producing wall or panel-like structures, e.g. for hulls, fuselages, or buildings provided with ridges or ribs, e.g. joined ribs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2023/00—Tubular articles
    • B29L2023/22—Tubes or pipes, i.e. rigid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B15/00—Superstructures, deckhouses, wheelhouses or the like; Arrangements or adaptations of masts or spars, e.g. bowsprits
    • B63B15/02—Staying of masts or of other superstructures

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)

Abstract

The invention relates to a device enabling a long lightweight tube made of composite material to be longitudinally stiffened. It consists of a mould 1 having one or more longitudinal grooves 2 into which are packed glass or carbon fibres coated with a resin, as far as the surface of the mould, which resin adheres perfectly to the fibres or to the glass fabrics employed for the conventional manufacture of these tubes. The device according to the invention is particularly intended for the rigging of sailing boats.

Description

RAIDISSEUR POUR PROFILES TUBIJLAIRFS
R,N ETU COMPOSIT
La présente invention concerne un dispositif permettant de rigidifier longitudinalement un tube léger et long en matériau composit.STRAIGHTENER FOR TUBIJLAIRFS PROFILES
R, N ETU COMPOSIT
The present invention relates to a device for rigidifying longitudinally a light and long tube of composite material.

La fabrication de ces tubes est traditionnellement effectuée en enroulement filamentaire ou en fibre de verre tissée avec une résine adaptée comme liant, dont la forme est donnée par un moule cylindrique ou conique. Face à la demande des utilisateurs, ces tubes se veulent longs (4 à 5 m) et légers (2 à 3,2 Kgs), mais par ailleurs perdent proportionnellement en rigidité. Une variante existe, présentant des bandes de carbone tissées disposées longitudinalement de part et d'autre du tube mais dont le positionnement mécanique, n'étant pas toujours rectiligne, risque de faire travailler le tube en torsion, ceci étant néfaste pour les besoins des utilisateurs. The manufacture of these tubes is traditionally carried out in filament winding or in fiberglass woven with a suitable resin as a binder, the shape of which is given by a cylindrical or conical mold. Faced with user demand, these tubes are long (4 to 5 m) and light (2 to 3.2 kg), but also lose proportionally in rigidity. A variant exists, having woven carbon strips arranged longitudinally on either side of the tube but whose mechanical positioning, not being always straight, risks causing the tube to work in torsion, this being harmful for the needs of the users. .

Le dispositif selon l'invention permet de remédier à cet inconvénient. Il se compose en effet d'un moule en acier présentant une (ou plusieurs) gorge longitudinale enV (ou autres formes creuses sans aspérités), dans lesquelles on dispose plusieurs fils de verre ou de carbone préalablement mouillés dans une résine puis essorés, et tendus jusqu'à combler la gorge avant de procéder à la fabrication traditionnelle, à laquelle il adhère parfaitement. Le procédé permet donc d'avoir un renfort parfaitement droit sur l'intérieur de tube, d'une faible largeur impliquant une forte rigidité d'un côté du tube, et une certaine souplesse à sa perpendiculaire, dans le cas de deux gorges longitudinales diamétralement opposées. The device according to the invention overcomes this drawback. It is in fact made up of a steel mold having one (or more) longitudinal V groove (or other hollow shapes without roughness), in which there are several glass or carbon wires previously wetted in a resin and then wrung out and stretched. until filling the throat before proceeding to the traditional manufacturing, to which it adheres perfectly. The method therefore makes it possible to have a perfectly straight reinforcement on the inside of the tube, of a small width implying a high rigidity on one side of the tube, and a certain flexibility at its perpendicular, in the case of two diametrically longitudinal grooves. opposite.

Les dessins annexés représentent le dispositif:
La figure I illustre, en coupe, le dispositif selon l'invention.The attached drawings represent the device:
Figure I illustrates, in section, the device according to the invention.

La figure 2 illustre, en coupe, le résultat d'un tube renforcé. Figure 2 illustrates, in section, the result of a reinforced tube.

Le moule, sur la figure I a un diamètre de 48,5 mm et les deux gorges (2) d'une largeur de 7 mm ont une profondeur de 6 mm. La longueur du moule et des gorges peut varier de 4,50 m à 5,20 m nar exemple dans le cas de l'utilisation de ces tubes, plus ou moins dans d'autres cas. The mold in Figure I has a diameter of 48.5 mm and the two grooves (2) with a width of 7 mm have a depth of 6 mm. The length of the mold and of the grooves can vary from 4.50 m to 5.20 m nar example in the case of the use of these tubes, more or less in other cases.

La figure 2 montre la coupe d'un tube rigidifié par deux renforts diamétralement opposés. Figure 2 shows the section of a tube stiffened by two diametrically opposite reinforcements.

Le dispositif, selon l'invention, est particulièrement destiné aux gréments de voiliers.  The device according to the invention is particularly intended for the rigging of sailboats.

Claims (4)

REVENDICATIONS I) Procédé destiné à rigidifier un profilé tubulaire en matière composite caractérisé en ce qu'on introduit des fibres synthétiques sur un moule présentant des gorges longitudinales.I) Method for stiffening a tubular profile made of composite material, characterized in that synthetic fibers are introduced onto a mold having longitudinal grooves. 2) Le moule d'après le procédé selon la revendication (I) est caractérisé en ce qu'il comporte des gorges longitudinales en V ou autres formes creuses sans aspérités.2) The mold according to the method according to claim (I) is characterized in that it comprises longitudinal V-shaped grooves or other hollow shapes without roughness. 3) Profilé tubulaire obtenu d'après le procédé selon les revendications (I) et (2) caractérisé en ce qu'il comporte des renforcements longitudinaux intérieurs, tendant à rigidifier le tube.3) Tubular section obtained according to the method according to claims (I) and (2) characterized in that it comprises internal longitudinal reinforcements, tending to stiffen the tube. 4) Profilé tubulaire obtenu d'après le procédé selon les revendications (I) à (3) caractérisé en ce que les fibres synthétiques soient en verre ou en carbone. 4) Tubular section obtained according to the method according to claims (I) to (3) characterized in that the synthetic fibers are glass or carbon.
FR8518377A 1985-12-10 1985-12-10 Stiffener for tubular profiles made from composite material Pending FR2591145A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8518377A FR2591145A1 (en) 1985-12-10 1985-12-10 Stiffener for tubular profiles made from composite material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8518377A FR2591145A1 (en) 1985-12-10 1985-12-10 Stiffener for tubular profiles made from composite material

Publications (1)

Publication Number Publication Date
FR2591145A1 true FR2591145A1 (en) 1987-06-12

Family

ID=9325699

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8518377A Pending FR2591145A1 (en) 1985-12-10 1985-12-10 Stiffener for tubular profiles made from composite material

Country Status (1)

Country Link
FR (1) FR2591145A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2390326A (en) * 2001-12-14 2004-01-07 Visteon Global Tech Inc Integrally stiffened composite drive shaft

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1167676A (en) * 1980-04-10 1984-05-22 Vikram S. Shankhla Rifled fiber reinforced gun barrel

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1167676A (en) * 1980-04-10 1984-05-22 Vikram S. Shankhla Rifled fiber reinforced gun barrel

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2390326A (en) * 2001-12-14 2004-01-07 Visteon Global Tech Inc Integrally stiffened composite drive shaft

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