FR2586217A1 - Lightweight bicycle wheel rim with high mechanical - Google Patents

Lightweight bicycle wheel rim with high mechanical Download PDF

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Publication number
FR2586217A1
FR2586217A1 FR8512496A FR8512496A FR2586217A1 FR 2586217 A1 FR2586217 A1 FR 2586217A1 FR 8512496 A FR8512496 A FR 8512496A FR 8512496 A FR8512496 A FR 8512496A FR 2586217 A1 FR2586217 A1 FR 2586217A1
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FR
France
Prior art keywords
rim
glass
layer
fibres
bicycle wheel
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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
FR8512496A
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French (fr)
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FR2586217B1 (en
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Individual
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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 FR8512496A priority Critical patent/FR2586217B1/en
Priority to AT85904006T priority patent/ATE50736T1/en
Priority to PCT/FR1985/000225 priority patent/WO1986001463A1/en
Priority to US06/862,352 priority patent/US4741578A/en
Priority to DE8585904006T priority patent/DE3576310D1/en
Priority to EP85904006A priority patent/EP0191811B1/en
Publication of FR2586217A1 publication Critical patent/FR2586217A1/en
Application granted granted Critical
Publication of FR2586217B1 publication Critical patent/FR2586217B1/en
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B1/00—Spoked wheels; Spokes thereof
    • B60B1/003—Spoked wheels; Spokes thereof specially adapted for bicycles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B5/00—Wheels, spokes, disc bodies, rims, hubs, wholly or predominantly made of non-metallic material
    • B60B5/02—Wheels, spokes, disc bodies, rims, hubs, wholly or predominantly made of non-metallic material made of synthetic material

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Moulding By Coating Moulds (AREA)

Abstract

The invention relates to strength devices making it possible to use carbon fibres 1 combined with resins forming a remarkably light composite for manufacturing bicycle wheel rims. In order to eliminate the risk of the fibres bursting and causing the wheel to collapse in the event of impact the rim comprises on the outside, as a peripheral coating, a layer 6 of glass or synthetic fibres which resist impact and the friction of the brake shoes and, on the inside, a plate 7 made from glass or synthetic fibres absorbing the tension exerted by the nut 5 locking the spoke 3 and thus ensuring good cohesion of the assembly constituting the rim by compression of the carbon fibres situated between it and the layer 6.

Description

La présente invention concerne un perfectionnement apporté à l'objet de la demande de brevet français nO 84.13024 du 21 août 1984 et a plus particulièrement pour but de remplacer le support métallique en couronne prévu dans cette demande de brevet par des fibres de verre ou de synthese d'une autre nature, en particulier fibres aramides ou hybrides carbone-aramides, ces matériaux ayant des résistances élevées à l'impact, aux efforts de compression et d'arrachement. The present invention relates to an improvement made to the subject of French patent application no. 84.13024 of August 21, 1984 and more particularly aims to replace the metal support in a crown provided in this patent application by glass or synthetic fibers of another nature, in particular aramid fibers or carbon-aramid hybrids, these materials having high resistance to impact, to compression and tearing forces.

Pour bien faire comprendre ce dispositif, on en décrit ciaprès brièvement un exemple d'exécution sans caractère limitatif en référence au dessin annexé dans lequel la figure (1) est une coupe en tranche de la Jante et d'un rayon selon son axe diamétral. To clearly understand this device, a brief description of the embodiment below is given without limitation, with reference to the appended drawing in which FIG. (1) is a section in slice of the rim and of a radius along its diametrical axis.

Ce dispositif selon l'invention est constitué de fibres de carbone (1) associées à des résines constituant la Jante enfermant une poche (4) qui peut etre, soit vide, soit remplie d'une mousse durcie, d'une grande légèreté ayant été injectee dans le seul but de réaliser le moulage de la Jante. This device according to the invention consists of carbon fibers (1) associated with resins constituting the rim enclosing a pocket (4) which can be either empty or filled with hardened foam, of great lightness having been injected for the sole purpose of molding the rim.

Ladite Jante reçoit sur sa partie extérieure une couche de fibres de verre (6) ou aramides ou hybride de fibres de carbone et de fibres aramides ou d'autres fibres de synthèse ayant une bonne résistance aux chocs et aux frottements des patins de freinage sur les zones latérales de la Jante. D'autres couches pourraient encore être disposées. Said rim receives on its outer part a layer of glass fibers (6) or aramids or hybrid of carbon fibers and aramid fibers or other synthetic fibers having good impact resistance and friction of the brake pads on the side zones of the rim. Other layers could also be placed.

Cette disposition n'ayant aucun caractère limitatif. La tête de l'écrou (5) qui encaisse la tension T exercée par le rayon (3) vient appuyer sur la couche (7) de fibres de verre ou aramides ou d'autres fibres de synthèse ayant une bonne résistance au choc et comprime les fibres de carbone situées entre elle et la couche (6) assurant une bonne cohésion de l'ensemble constituant la Jante. This provision having no limiting character. The head of the nut (5) which collects the tension T exerted by the spoke (3) presses on the layer (7) of glass fibers or aramids or other synthetic fibers having good impact resistance and compresses the carbon fibers located between it and the layer (6) ensuring good cohesion of the assembly constituting the rim.

Claims (1)

REVENDICATIONS 1) Jante de cycle constituée d'un ensemble de matières composites léger comprenant des fibres de carbone associées å des résines, caractérisé en ce que la Jante comporte å l'extérieur en plaquage périphérique une couche (6) de fibres de verre ou de synthèse résistant aux chocs et aux frottements des patins de freinage et å l'intérieur une plaque (7) en fibres de verre ou de synthèse encaissant la tension exercée par l'écour (5) bloquant le rayon (3) et assurant ainsi une bonne cohésion de l'ensemble constituant lajante par compression des fibres de carbone situées entre elle (7) et la couche (6).  1) Cycle rim made up of a set of light composite materials comprising carbon fibers associated with resins, characterized in that the rim comprises on the outside in peripheral plating a layer (6) of glass or synthetic fibers resistant to impact and friction from the brake pads and inside a plate (7) made of glass or synthetic fibers absorbing the tension exerted by the core (5) blocking the spoke (3) and thus ensuring good cohesion of the assembly constituting the rim by compression of the carbon fibers situated between it (7) and the layer (6).
FR8512496A 1984-08-21 1985-08-19 BICYCLE WHEEL WITH HIGH MECHANICAL STRENGTH AND LOW WEIGHT Expired FR2586217B1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
FR8512496A FR2586217B1 (en) 1985-08-19 1985-08-19 BICYCLE WHEEL WITH HIGH MECHANICAL STRENGTH AND LOW WEIGHT
AT85904006T ATE50736T1 (en) 1984-08-21 1985-08-19 FIBER COMPOSITE MATERIAL FOR WHEEL RIM.
PCT/FR1985/000225 WO1986001463A1 (en) 1984-08-21 1985-08-19 Assembly of composite materials forming a spoke wheel rim
US06/862,352 US4741578A (en) 1984-08-21 1985-08-19 Assembly of composite materials forming a spoke wheel rim
DE8585904006T DE3576310D1 (en) 1984-08-21 1985-08-19 FIBER COMPOSITE FOR SPOKE WHEEL RIM.
EP85904006A EP0191811B1 (en) 1984-08-21 1985-08-19 Assembly of composite materials forming a spoke wheel rim

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8512496A FR2586217B1 (en) 1985-08-19 1985-08-19 BICYCLE WHEEL WITH HIGH MECHANICAL STRENGTH AND LOW WEIGHT

Publications (2)

Publication Number Publication Date
FR2586217A1 true FR2586217A1 (en) 1987-02-20
FR2586217B1 FR2586217B1 (en) 1989-06-16

Family

ID=9322290

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8512496A Expired FR2586217B1 (en) 1984-08-21 1985-08-19 BICYCLE WHEEL WITH HIGH MECHANICAL STRENGTH AND LOW WEIGHT

Country Status (1)

Country Link
FR (1) FR2586217B1 (en)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR806474A (en) * 1936-03-14 1936-12-17 Improvement of rims for cycles
FR993303A (en) * 1949-06-17 1951-10-30 Rim for cycles or similar vehicles
FR994459A (en) * 1949-07-02 1951-11-16 Solid rim for cycles or similar vehicles
FR1289921A (en) * 1960-07-21 1962-04-06 Fichtel & Sachs Ag Metal spoked wheel for tubeless tires
FR1332603A (en) * 1962-05-24 1963-07-19 Michelin & Cie Improvement to non-metallic cast rims for spoked wheels
US4030754A (en) * 1976-01-21 1977-06-21 Hercules Incorporated Composite lightweight wheel rim
NL7906928A (en) * 1979-09-18 1981-03-20 Schothorst Bv Bicycle wheel rim of polyamide bonded glass fibre - of two half mouldings clipped and ultrasonically welded
WO1986001463A1 (en) * 1984-08-21 1986-03-13 Viellard Paul Henri Assembly of composite materials forming a spoke wheel rim

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR806474A (en) * 1936-03-14 1936-12-17 Improvement of rims for cycles
FR993303A (en) * 1949-06-17 1951-10-30 Rim for cycles or similar vehicles
FR994459A (en) * 1949-07-02 1951-11-16 Solid rim for cycles or similar vehicles
FR1289921A (en) * 1960-07-21 1962-04-06 Fichtel & Sachs Ag Metal spoked wheel for tubeless tires
FR1332603A (en) * 1962-05-24 1963-07-19 Michelin & Cie Improvement to non-metallic cast rims for spoked wheels
US4030754A (en) * 1976-01-21 1977-06-21 Hercules Incorporated Composite lightweight wheel rim
NL7906928A (en) * 1979-09-18 1981-03-20 Schothorst Bv Bicycle wheel rim of polyamide bonded glass fibre - of two half mouldings clipped and ultrasonically welded
WO1986001463A1 (en) * 1984-08-21 1986-03-13 Viellard Paul Henri Assembly of composite materials forming a spoke wheel rim

Also Published As

Publication number Publication date
FR2586217B1 (en) 1989-06-16

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