WO2003018331A1 - Structure de rayons aerodynamique pour roue de vehicule, et procede de fabrication de cette structure - Google Patents

Structure de rayons aerodynamique pour roue de vehicule, et procede de fabrication de cette structure Download PDF

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Publication number
WO2003018331A1
WO2003018331A1 PCT/IB2002/003476 IB0203476W WO03018331A1 WO 2003018331 A1 WO2003018331 A1 WO 2003018331A1 IB 0203476 W IB0203476 W IB 0203476W WO 03018331 A1 WO03018331 A1 WO 03018331A1
Authority
WO
WIPO (PCT)
Prior art keywords
filament
spoke structure
structure according
connecting means
spoke
Prior art date
Application number
PCT/IB2002/003476
Other languages
English (en)
Inventor
Giulia Arrigoni
Original Assignee
F.I.R. Srl
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 F.I.R. Srl filed Critical F.I.R. Srl
Priority to EP02760471A priority Critical patent/EP1420963A1/fr
Publication of WO2003018331A1 publication Critical patent/WO2003018331A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B19/00—Wheels not otherwise provided for or having characteristics specified in one of the subgroups of this group
    • B60B19/10—Wheels not otherwise provided for or having characteristics specified in one of the subgroups of this group with cooling fins
    • 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
    • B60B1/00—Spoked wheels; Spokes thereof
    • B60B1/02—Wheels with wire or other tension spokes
    • B60B1/0246—Wheels with wire or other tension spokes characterised by cross-section of the spoke, e.g. polygon or elliptic shape
    • 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
    • B60B1/02—Wheels with wire or other tension spokes
    • B60B1/0261—Wheels with wire or other tension spokes characterised by spoke form
    • 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
    • B60B1/02—Wheels with wire or other tension spokes
    • B60B1/04—Attaching spokes to rim or hub
    • B60B1/041—Attaching spokes to rim or hub of bicycle wheels
    • 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
    • B60B1/02—Wheels with wire or other tension spokes
    • B60B1/04—Attaching spokes to rim or hub
    • B60B1/042—Attaching spokes to hub
    • 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
    • B60B1/02—Wheels with wire or other tension spokes
    • B60B1/04—Attaching spokes to rim or hub
    • B60B1/043—Attaching spokes to rim
    • B60B1/048—Attaching spokes to rim by the use of screws
    • 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
    • B60B1/02—Wheels with wire or other tension spokes
    • B60B1/0207—Wheels with wire or other tension spokes characterised by non-standard number of spokes, i.e. less than 12 or more than 32 spokes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B21/00—Rims
    • B60B21/06—Rims characterised by means for attaching spokes, i.e. spoke seats
    • B60B21/062—Rims characterised by means for attaching spokes, i.e. spoke seats for bicycles

Definitions

  • the present invention relates to a spoke structure for a vehicle wheel, particularly but not exclusively for a bicycle wheel, as well as a method for the manufacture of said structure.
  • the present invention relates to an aerodynamic spoke structure with a high level of efficiency, safety and reliability, which has an application preferably in high-performance bicycle wheels used in professional and non- professional sectors.
  • Traditional wheels of the abovementioned type are generally formed by a rim intended to contain a tyre, a hub at the axis of rotation and a plurality of spokes or radial elements which have the function of connecting and keeping the rim centred with respect to the hub, as well as transmitting the stresses and the reactions between the two members.
  • Conventional spokes generally have a constant cross-section of circular, rectangular or elliptical shape, with one end which is threaded and can be engaged with a nipple in order to retain the rim and the other end shaped so as to engage in appropriate seats in the hub.
  • the problems posed by said known spokes are essentially of a technical and cost-related nature. In particular, they consist in the relatively low aerodynamic efficiency, the high weight, the low resilience or impact resistance, the high manufacturing cost and the limited relative value.
  • the coefficient of resistance CR for cylindrical cross-sections has a value equal to about 0.35 for any angle with respect to the flow.
  • spokes with aerodynamically shaped cross-sections have been proposed, as described for example in the patent US-A-5 350 221.
  • EP-A-872357 describes a spoke with an aerodynamic profile manufactured by means of an excess of resin resulting from filling between two strips of reinforcing fabric.
  • the excess resin leads to an increase in the weight of said spoke, without any significant contribution to the increase in specific resilience (Jrzo D weight).
  • Metal spokes with tapered cross-sections on the market nowadays are characterized by the following geometric characteristics:
  • the metallic materials normally used in the manufacture of spokes are stainless steels. The most widely used is the steel X5CrNi18/10 1.4301
  • the central sections of these spokes have a roughly elliptical geometry with a constant chord height equal to 40 - 50 % over the whole length of the profiled section.
  • the latter is usually shorter than the overall length of the spoke.
  • spokes made of composite materials respectively with a circular cross-section (see JP-A-80901) or a rectangular cross- section (see EP-A-1 044 872) have been proposed, said cross-sections being substantially constant along the central portion of the spoke.
  • the composite materials normally used for the manufacture of spokes are of the type with an epoxy thermosetting matrix reinforced with carbon or aramide fibres (e.g. Kevlar® produced by Du Pont).
  • carbon spokes are manufactured with fibres arranged in an optimum manner with respect to the direction of stress (longitudinally relative to said spoke).
  • the mechanical characteristics which can be achieved with said materials are the following: .
  • PEEK Polyether ether ketone
  • a thermoplastic engineering material i.e. with mechanical characteristics (tensile, bending, impact and fatigue strength) which are comparable to those of certain metallic materials.
  • PEEK can be reinforced with glass or carbon fibres and in the latter case has the following characteristics (PEEK 450CA30 produced by VICTREX).
  • WO 91/13771 envisages the manufacture of a spoke having a central portion with a group of fibres made of metallic material and non-metallic material (carbon, aramide, etc.) bonded by a thermosetting resin or a thermoplastic resin.
  • the reinforcement of the central portion is achieved with fibres (including metallic fibres) which must be filament-like elements with diameters of between 5 [ ⁇ m] e 15 [ ⁇ m] (classic definition). In this case, the increase in resilience with respect to a carbon structure was achieved without negatively affecting the rigidity of the spoke.
  • Another problem faced by manufacturers of spokes is that of limiting the manufacturing cost, which must be midway between the costs of manufacturing a normal spoke and those of manufacturing a composite spoke.
  • spokes proposed by the known art result in the need for specific rims and hubs, i.e. they cannot be interchanged with the spokes currently fitted to bicycles.
  • the cost for the end user also includes the rim and the hub.
  • spokes formed by several elements cost more than standard spokes.
  • the task of the present invention is that of eliminating the abovementioned problems, by providing a spoke structure with the characteristics of a high aerodynamic efficiency, high specific resilience, high reliability and safety for the user, low weight and high value.
  • a particular object of the present invention is that of designing a method for manufacturing an aerodynamic spoke which is reliable and easy to repeat, as well as low-cost.
  • an aerodynamic spoke structure made of composite material for vehicle wheels of the type having a mutually concentric hub and rim, comprising, according to Claim 1 , an elongated central portion with longitudinal end portions, first connecting means for the removable fixing of one end portion to the wheel hub, second connecting means for the removable fixing of the other end portion to the rim, in which said central portion comprises a reinforcing core of metallic material, with which said first and second connecting means are rigidly associated, and an aerodynamically shaped external lining body of relatively rigid composite material, which is secured stably to the outer surface of said reinforcing core.
  • the spoke according to the invention has a high aerodynamic efficiency and a low weight, while still guaranteeing considerable safety and reliability against possible catastrophic breakages.
  • the reinforcing core may be formed by a filament-like element with a substantially constant cross-section.
  • the filament-like element may be designed with dimensions such as to have sufficient mechanical strength to prevent the separation of two or more sections of the elongated central portion in the event of the breakage of the lining body of composite material.
  • the filament-like element is preferably formed by at least one flexible cable of stainless steel or similar metal.
  • the first and second connecting means will be made of synthetic material and will be fixed rigidly to the ends of said flexible cable.
  • the filament-like element is preferably formed by a rod of rigid metallic material.
  • the first and second connecting means will form one piece with the ends of the rod of metallic material.
  • a method for the manufacture of the spoke of composite material according to Claim 18 comprising the steps of a) provision of an elongated central portion extending between the hub and the rim of the wheel, b) provision of end portions with first and second connecting means for removable fixing to the hub and the rim of the wheel, respectively, in which said elongated central portion is made using a reinforcing core of metallic material, with the ends of which said first and second connecting means are associated, and by securing a lining body of composite material onto the outer surface of said reinforcing core.
  • the method will involve a reduced number of steps and may therefore be carried out in a reliable, repetitive and low-cost manner, achieving spokes of high value.
  • FIG. 1 shows a perspective view of a spoke according to the invention during fixing to the hub and to a rim section;
  • FIG. 2 shows a partially cross-sectioned side view of a first embodiment of the spoke according to Fig. 1 ;
  • FIG. 3 shows a front view of the spoke according to Fig. 1 ;
  • FIG. 4 shows a cross-sectional view of the spoke according to Fig. 2 along the plane indicated by the broken line IV-IV;
  • FIG. 5 shows a cross-sectional view of the spoke according to Fig. 2 along the plane indicated by the broken line V-V;
  • FIG. 6 shows a slightly enlarged cross-sectional view of the spoke according to Fig. 2 along the plane indicated by the broken line VI-VI;
  • FIG. 7 shows a partial cross-sectioned side view of a second embodiment of the spoke according to Fig. 1 ;
  • FIG. 8 shows a front view of the spoke according to Fig. 7
  • FIG. 9 shows a cross-sectional view of the spoke according to Fig. 7 along the plane indicated by the broken line IX-IX;
  • FIG. 10 shows a cross-sectional view of the spoke according to Fig. 7 along the plane indicated by the broken line X-X;
  • FIG. 11 shows a cross-sectional view of the spoke according to Fig. 7 along the plane indicated by the broken line XI-XI.
  • a spoke structure of composite material according to the invention is shown, said structure being denoted in its entirety by reference number 1 and having the function of connecting and holding in a concentric position an axial hub M and a rim circle segment C, with a U- shaped cross-section intended to house a tyre.
  • the structure 1 comprises an elongated central portion, denoted in its entirety by 2, with two end portions, which are denoted respectively by 3, 4 and are provided with respective connecting means 5, 6 of standardised type, i.e. identical to those commonly used on conventional spokes, so that they are perfectly interchangeable with the latter.
  • the first connecting means 5 may be formed by a curved or straight mushroom head 7, for the removable insertion in a corresponding seat S of the hub M.
  • the second connecting means 6 may be formed by a thread 8 intended to be removably engaged in a hole F of the rim C and in a nut or nipple N.
  • the elongated central portion 2 comprises an internal reinforcing core 9 of metallic material, with which the first and second connecting means 5, 6 and an aerodynamically shaped external lining body 10 of composite material are respectively associated in the manner which will described in more detail below, said lining body being secured stably to the outer surface of the reinforcing core 9.
  • the reinforcing core 9 is formed by a filament-like element 11 with a substantially constant cross-section.
  • the filament-like element 11 has sufficient mechanical strength to prevent the separation of two or more sections of the lining body 10 in the event of the catastrophic breakage thereof.
  • the outer surface of the filament-like element 11 may be machined so as to have a high surface roughness, which is sufficient to guarantee optimum securing of the lining body 10.
  • the filament-like element 11 is formed by a rod of metallic material with a constant cross-section.
  • the rod 11 is formed by cutting a section of steel wire of suitable thickness, for example about 1.5 mm.
  • the steel may be formed by a stainless steel of the type X5CrNi1810.
  • the rod 11 may be formed by a conventional cylindrical spoke of the double-butted DT Competition® type, manufactured by DT Swiss Spoke.
  • the first and second connecting means 5, 6 may be manufactured by means of plastic deformation and form one piece with the ends of the rod 11 of metallic material.
  • the lining body 10 will have a cross-section in the form of a substantially symmetrical wing profile, having a zero angle of inclination with respect to the main plane of extension of the wheel and length increasing towards the hub M.
  • the profile may be chosen from among wing profiles of the four-figure NACA series, such as for example NACA 0012 which has a CR equal to about 0.08.
  • the length of the chord may be dimensioned in such a way as to vary from between 7.5 mm at the end connecting to the hub M and about 2.5 mm at the portion connecting to the rim C.
  • the composite material of the lining body 10 is selected so as to have a modulus of thermal expansion which is substantially equal to that of the metallic material of the reinforcing core 9, so as to prevent separation between the two structural components.
  • the composite material of the lining body 10 comprises a matrix of thermosetting (e.g. epoxy) plastic material or thermoplastic (e.g. polyamide) material, in which one or more layers of reinforcing fabric 12 are embedded.
  • thermosetting e.g. epoxy
  • thermoplastic e.g. polyamide
  • the fibres of the reinforcing fabric 12 may be chosen from among carbon, glass, Kevlar®, Twaron® or combinations of these. Said layers 12 of the reinforcing fabric will have a warp and a weft, which are not visible in the drawings and have fibres which are substantially parallel and perpendicular, respectively, with respect to the longitudinal direction of the filament-like element 9.
  • unidirectional reinforcing fibres in the part of the spoke in direct contact with the metallic part (in total two layers on one side and two layers on the other side with respect to the chord of the aerodynamic profile) and a fabric, for example a 2x2 twill of 200 g/m 2 , with the fibres of the warp parallel to the longitudinal direction of the spoke and the weft arranged perpendicularly to said direction, allows metallic reinforcing cores with mechanical characteristics even inferior to those of X5CrNi1810 to be used.
  • the composite spoke thus formed will have approximately a weight equal to about 7.5 g and a resilience (JIZ O D) equal to about 400 J.
  • JIZ O D a resilience
  • the dimensional and mechanical characteristics of the finished product may vary depending on the type of wheel to which it will be fitted and the stresses to which it will be subjected.
  • the spoke according to this second embodiment differs from the preceding spoke only in that the reinforcing core 9' consists of a filament-like element 11' formed by at least one flexible cable of stainless steel or similar metal.
  • first and second connecting means 5', 6' are rigidly fixed to the end portions of the flexible cable 11 ' and are preferably made of synthetic material, which may be overinjected (in the case of polymer material) or overpressed (in the case of metallic material).
  • the synthetic material which forms the connecting elements 5', 6' may be a thermoplastic or thermosetting material, which may be optionally reinforced with glass or carbon fibres, such as PEEK 450CA30, and has mechanical characteristics comparable to those of the metallic material of the filament-like element 11'.
  • the composite material may be overinjected (in the case of polymer material) or overpressed (in the case of metallic material).
  • connecting means 5', 6' must be suitably designed so as to have axial rigidity values comparable to or higher than those of steel.
  • An essential characteristic feature of the various embodiments consists in the presence of the filament-like element 11 , 11' inside the lining body in order to give the entire spoke 1 , 1 ' an adequate impact resistance without adversely affecting the rigidity thereof.
  • the method of manufacturing the spoke described above may involve the following steps: a) provision of the elongated central portion 2 b) provision of the end portions 3, 4 equipped with first and second connecting means 5, 6.
  • the elongated central portion is manufactured using a reinforcing core 9, 9' of metallic material, with the ends of which the first and second connecting means 5, 6, 5', 6' are associated, and by securing or overpressing the aerodynamically shaped lining body 10, 10' of composite material onto the outer surface of the reinforcing core 9, 9'.
  • the method of manufacturing the first embodiment according to Figures 1 to 6 must envisage the preparation of a first mould or a set of suitable devices for cold- forming the reinforcing core 9 made from a section of stainless steel wire.
  • the outer surface of the rod 9 may be roughened so as to aid securing of the material which forms the lining body 10, 10'.
  • a second mould for forming the lining body 10, 10' must be provided.
  • strips or layers 12 of fabric of dimensions suitable for the moulds used must be die-cut, bearing in mind that the width thereof must be at least double the length of the chord of the aerodynamic profile to be manufactured.
  • the unidirectional carbon and/or aramide and/or glass fibres are arranged in a direction parallel to the spoke.
  • Polymerisation of the composite material which forms the lining body must be performed by means of thermal and pressure cycles so as to shape the outer surface of the body 10, 10'.
  • the steps described above refer to the manufacture of an aerodynamic spoke with composite materials comprising a thermosetting matrix and using hot-surface press moulding technology.
  • the lining bodies of the spokes may be manufactured with other materials such as, for example: (i) thermoplastic composites; (ii) thermoplastic polymers; (ii) thermosetting polymers.
  • the spoke according to the invention achieves all the predefined objects and particular emphasis is placed on the high aerodynamic performance, which is optimised as a function of the fluid-dynamic parameters of the vehicle, and the high specific resilience (safety), which is such as to ensure high reliability of use of the wheel.
  • composite materials comprising a thermosetting (epoxy based) matrix, which are reinforced with (HS - high strength - or HM - high modulus) carbon fibres have relatively high costs (about 20 €/m 2 for a weight of 200 g/m 2 ).
  • manufacturing a spoke of metallic material with a high aerodynamic performance would require specific equipment (high-tonnage presses and moulds having particular dimensions and made of special materials) and longer machining cycles (successive forming passes).
  • a further advantage consists in the absolute interchangeability of the spoke according to the invention with those on the market nowadays or already fitted to ready assembled wheels, using conventional hubs and nipples.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Moulding By Coating Moulds (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Body Structure For Vehicles (AREA)

Abstract

Cette invention se rapporte à une structure de rayons pour roue de véhicule, du type comportant un moyeu (M) et une jante (C) concentriques, l'une par rapport à l'autre, cette structure comprenant une partie centrale allongée (2; 2') avec des parties terminales longitudinales (3, 4; 3', 4'), un premier organe de liaison (5; 5') pour la fixation amovible d'une partie terminale (3) au moyeu (M) de la roue, un second organe de liaison (6; 6') pour la fixation amovible de l'autre partie terminale (4; 4') à la jante. La partie centrale (2; 2') comprend un noyau de renforcement (9, 9') en matériau métallique, à l'aide duquel le premier et le second organe de liaison (5, 6; 5', 6') sont associés de façon rigide, et un corps de garnissage externe de forme aérodynamique (10; 10') en matériau composite relativement rigide qui est fixé stable à la surface externe du noyau de renforcement (9; 9'). Le noyau de renforcement (9; 9') est constitué d'un élément en forme de filament (11; 11') ayant une section transversale essentiellement constante, qui possède une résistance mécanique suffisante pour empêcher la séparation d'au moins deux sections de ladite partie centrale allongée (2; 2') en cas de rupture du corps de garnissage externe (10; 10') en matériau composite.
PCT/IB2002/003476 2001-08-28 2002-08-28 Structure de rayons aerodynamique pour roue de vehicule, et procede de fabrication de cette structure WO2003018331A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP02760471A EP1420963A1 (fr) 2001-08-28 2002-08-28 Structure de rayons aerodynamique pour roue de vehicule, et procede de fabrication de cette structure

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITVI2001A000179 2001-08-28
IT2001VI000179A ITVI20010179A1 (it) 2001-08-28 2001-08-28 Struttura di raggio aerodinamico per ruote di veicolo nonche' metodo per realizzazione dello stesso

Publications (1)

Publication Number Publication Date
WO2003018331A1 true WO2003018331A1 (fr) 2003-03-06

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Application Number Title Priority Date Filing Date
PCT/IB2002/003476 WO2003018331A1 (fr) 2001-08-28 2002-08-28 Structure de rayons aerodynamique pour roue de vehicule, et procede de fabrication de cette structure

Country Status (3)

Country Link
EP (1) EP1420963A1 (fr)
IT (1) ITVI20010179A1 (fr)
WO (1) WO2003018331A1 (fr)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1559583A1 (fr) * 2004-01-27 2005-08-03 Campagnolo S.R.L. Rayon pour une roue de bicyclette, roue et procédé de fabrication d'un tel rayon
FR2900869A1 (fr) * 2006-05-12 2007-11-16 Salomon Sa Roue a rayons
EP1930146A1 (fr) 2006-12-07 2008-06-11 Salomon S.A. Rayon en matière composite pour une roue à rayons
FR2915710A1 (fr) * 2007-05-04 2008-11-07 Salomon Sa Rayon en metal et matiere composite pour une roue a rayons.
FR2917666A1 (fr) * 2007-06-25 2008-12-26 Salomon Sa Soc Par Actions Sim Roue a rayon demontable en materiau composite
CN101811416A (zh) * 2010-05-07 2010-08-25 昆山捷安特轻合金科技有限公司 一种复合式辐条
EP2657042A1 (fr) * 2012-04-27 2013-10-30 Mavic S.A.S. Rayon pour roue de cycle et roue de cycle comportant un tel rayon
US10029511B2 (en) 2015-03-06 2018-07-24 Dt Swiss Inc. Wheel and spoke, in particular for a bicycle
DE102017110161A1 (de) * 2017-05-10 2018-11-15 Dt Swiss Ag Laufrad und Speiche, insbesondere für ein Fahrrad
CN109334343A (zh) * 2018-09-14 2019-02-15 天津市大城伟业科技股份有限公司 一种安全性能高的自行车轮辋
US10415729B2 (en) 2009-11-04 2019-09-17 Freudenberg Oil & Gas Technologies Limited Seal ring and joint
IT201900018476A1 (it) * 2019-10-10 2021-04-10 Laurent Harvey Colombo Ruota da bicicletta

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5110190A (en) * 1990-03-16 1992-05-05 Johnson Harold M High modulus multifilament spokes and method
US5779323A (en) * 1997-04-25 1998-07-14 Giant Manufacturing Co., Ltd. Spoked wheel with aerodynamic and rigidity imparting spokes
DE29824507U1 (de) * 1997-04-16 2001-03-29 Mavic (S.A.), Saint-Trivier-Sur-Moignans Seele einer Speiche für ein Speichenrad, Speiche und Fahrradrad

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5110190A (en) * 1990-03-16 1992-05-05 Johnson Harold M High modulus multifilament spokes and method
DE29824507U1 (de) * 1997-04-16 2001-03-29 Mavic (S.A.), Saint-Trivier-Sur-Moignans Seele einer Speiche für ein Speichenrad, Speiche und Fahrradrad
US5779323A (en) * 1997-04-25 1998-07-14 Giant Manufacturing Co., Ltd. Spoked wheel with aerodynamic and rigidity imparting spokes

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1559583A1 (fr) * 2004-01-27 2005-08-03 Campagnolo S.R.L. Rayon pour une roue de bicyclette, roue et procédé de fabrication d'un tel rayon
FR2900869A1 (fr) * 2006-05-12 2007-11-16 Salomon Sa Roue a rayons
WO2007135259A1 (fr) * 2006-05-12 2007-11-29 Salomon S.A. Roue a rayons
US8162407B2 (en) 2006-05-12 2012-04-24 Salomon S.A.S. Spoked wheel
EP1930146A1 (fr) 2006-12-07 2008-06-11 Salomon S.A. Rayon en matière composite pour une roue à rayons
FR2909586A1 (fr) * 2006-12-07 2008-06-13 Salomon Sa Rayon en matiere composite pour une roue a rayons
FR2915710A1 (fr) * 2007-05-04 2008-11-07 Salomon Sa Rayon en metal et matiere composite pour une roue a rayons.
FR2917666A1 (fr) * 2007-06-25 2008-12-26 Salomon Sa Soc Par Actions Sim Roue a rayon demontable en materiau composite
EP2008835A1 (fr) * 2007-06-25 2008-12-31 Salomon S.A. Roue à rayon démontable en matériau composite
US10415729B2 (en) 2009-11-04 2019-09-17 Freudenberg Oil & Gas Technologies Limited Seal ring and joint
CN101811416A (zh) * 2010-05-07 2010-08-25 昆山捷安特轻合金科技有限公司 一种复合式辐条
EP2657042A1 (fr) * 2012-04-27 2013-10-30 Mavic S.A.S. Rayon pour roue de cycle et roue de cycle comportant un tel rayon
FR2989934A1 (fr) * 2012-04-27 2013-11-01 Mavic Sas Rayon pour roue de cycle et roue de cycle comportant un tel rayon
US9539853B2 (en) 2012-04-27 2017-01-10 Mavic S.A.S. Cycle wheel spoke and cycle wheel comprising such a spoke
CN103373170B (zh) * 2012-04-27 2017-03-01 玛维克简易股份公司 辐条、自行车轮和制造自行车轮的辐条的方法
CN103373170A (zh) * 2012-04-27 2013-10-30 玛维克简易股份公司 自行车轮的辐条和包括该辐条的自行车轮
US10029511B2 (en) 2015-03-06 2018-07-24 Dt Swiss Inc. Wheel and spoke, in particular for a bicycle
DE102017110161A1 (de) * 2017-05-10 2018-11-15 Dt Swiss Ag Laufrad und Speiche, insbesondere für ein Fahrrad
CN109334343A (zh) * 2018-09-14 2019-02-15 天津市大城伟业科技股份有限公司 一种安全性能高的自行车轮辋
IT201900018476A1 (it) * 2019-10-10 2021-04-10 Laurent Harvey Colombo Ruota da bicicletta

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