FR2738188A1 - Tricycle wheel formed of plastics material in matching halves - Google Patents

Tricycle wheel formed of plastics material in matching halves Download PDF

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Publication number
FR2738188A1
FR2738188A1 FR9604472A FR9604472A FR2738188A1 FR 2738188 A1 FR2738188 A1 FR 2738188A1 FR 9604472 A FR9604472 A FR 9604472A FR 9604472 A FR9604472 A FR 9604472A FR 2738188 A1 FR2738188 A1 FR 2738188A1
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FR
France
Prior art keywords
wheel
parts
face
rim
tyre
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
FR9604472A
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French (fr)
Inventor
Valerio Accerenzi
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.)
Yakari Srl
Original Assignee
Yakari 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 Yakari Srl filed Critical Yakari Srl
Publication of FR2738188A1 publication Critical patent/FR2738188A1/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60BVEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B5/00Wheels, spokes, disc bodies, rims, hubs, wholly or predominantly made of non-metallic material
    • B60B5/02Wheels, 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)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Tires In General (AREA)

Abstract

The symmetrical shells (10) are formed of a plastics such as with an outer moulded band (11) of suitable material forming the "tyre". Pegs (12) and sockets (12, 12') ensure accurate fit during assembly. If desired, the "tyre" may be applied after the joining of the halves of the wheel. The structural cross sections (14, 15) of the wheel may be optimised to give the desired strength and flexibility relative to the centre bushing (13), whose size and contour may be moulded as desired. The tyre tread maybe of any required design.

Description

ROUE POUR TRICYCLES
La présente invention concerne toutes les roues, en matière plastique en particulier, mais pas exclusivement, pour tricycles.
WHEEL FOR TRICYCLES
The present invention relates to all wheels, in particular plastic material, but not exclusively, for tricycles.

A l'heure actuelle, on connaît des roues pour tricycles se composant d'une jante obtenue par des techniques de moulage par injection et d'un anneau de finition rapporté sur sa périphérie. La jante est constituée par un corps monobloc, creux et elle est particulièrement rigide, dure et bruyante au contact du sol et c'est également pour cette raison qu'elle est munie d'un anneau périphérique à même d'atténuer son comportement bruyant, ainsi que d'augmenter l'adhérence aux surfaces d'appui. Mais avant tout, un élément obtenu par injection comme celui de ladite jante ne se prête pas à l'application par pression sur celui-ci d'un bandage réalisé dans une matière différente. At the present time, wheels for tricycles are known which consist of a rim obtained by injection molding techniques and of a finishing ring attached on its periphery. The rim is formed by a monobloc, hollow body and it is particularly rigid, hard and noisy in contact with the ground and it is also for this reason that it is provided with a peripheral ring capable of attenuating its noisy behavior, as well as increasing the adhesion to the bearing surfaces. But above all, an element obtained by injection like that of said rim does not lend itself to the application by pressure thereon of a tire made of a different material.

On connaît cependant des roues pour véhicules à vitesse d'utilisation réduite, composées d'une jante matricée d'une seule pièce et munie d'un bandage rapporté. Ces roues sont robustes, ont une bonne adhérence et un comportement peu bruyant, mais sont également lourdes, s'agissant d'éléments pleins, et relativement coûteuses. Wheels for vehicles with reduced speed of use are known, however, composed of a single-piece stamped rim and fitted with an attached tire. These wheels are robust, have good grip and low noise behavior, but are also heavy, being solid elements, and relatively expensive.

On connaît par ailleurs des roues qui se composent d'une jante constituée de deux parties complémentaires, obtenues par matriçage, qui sont disposées en opposition face à face, et d'un revêtement périphérique de couverture appliqué par pression sur la jante, une fois assemblée, fait d'une matière assurant l'adhérence voulue. Le bandage concerne la périphérie de la jante sans discontinuité ni dans le sens circulaire ni dans le sens transversal et contribue par lui-même à maintenir unies les deux moitiés. Wheels are also known which consist of a rim consisting of two complementary parts, obtained by stamping, which are arranged in opposite face to face, and a peripheral covering coating applied by pressure on the rim, once assembled. , made of a material ensuring the desired adhesion. The bandage concerns the periphery of the rim without discontinuity either in the circular direction or in the transverse direction and contributes by itself to keep the two halves united.

L'objet de la présente invention consiste à proposer une roue pour des tricycles ou similaires, formée de deux parties complémentaires, obtenues par matriçage, dotées d'un revêtement de couverture périphérique respectif et munies également de moyens exerçant une interaction pour leur assemblage face à face qui permette d'obtenir la solidité voulue. The object of the present invention is to provide a wheel for tricycles or the like, formed of two complementary parts, obtained by stamping, provided with a respective peripheral covering coating and also provided with means which exert an interaction for their assembly opposite. face which allows to obtain the desired solidity.

L'avantage est que, les deux parties destinées à constituer la jante étant obtenues par matriçage, elles peuvent être réalisées selon des formes, dans des épaisseurs et avec une légèreté plus appropriées dans chacune de leurs zones. The advantage is that, the two parts intended to constitute the rim being obtained by stamping, they can be produced according to shapes, in thicknesses and with a more appropriate lightness in each of their zones.

Le bandage périphérique sera alors constitué par les deux revêtements voisins des deux éléments constitutifs de la roue et pourra intéresser, outre la bande périphérique, également les flancs de la jante. Il pourra comporter des motifs superficiels et avoir une consistance appropriés pour assurer un degré d'adhérence au sol élevé et un comportement peu bruyant, simulant dans son ensemble les aspects d'un pneumatique classique. The peripheral tire will then be formed by the two neighboring coatings of the two constituent elements of the wheel and may be of interest, in addition to the peripheral tire, also on the sides of the rim. It may include surface patterns and have an appropriate consistency to ensure a high degree of grip on the ground and a low noise behavior, simulating as a whole the aspects of a conventional tire.

Un exemple indicatif et non limitatif d'un mode de réalisation pratique de la roue proposée ici est illustré sur les dessins ci-joints sur lesquels
la figure 1 montre, séparées et vues en coupe, les deux parties complémentaires destinées à constituer la jante de roue munie de son bandage ; et
la figure 2 montre, vue en coupe, la roue finie, résultant ainsi de l'assemblage des deux parties représentées sur la figure 1.
An indicative and nonlimiting example of a practical embodiment of the wheel proposed here is illustrated in the attached drawings in which
FIG. 1 shows, separated and seen in section, the two complementary parts intended to constitute the wheel rim provided with its tire; and
FIG. 2 shows, in section view, the finished wheel, thus resulting from the assembly of the two parts shown in FIG. 1.

La roue est constituée de deux parties ou coquilles complémentaires 10, 10 (voir figure 1) réalisées par matriçage, par exemple en polypropylène ou dans une autre matière. Chaque partie ou coquille 10, 10 de la roue est munie d'un bandage périphérique 11, 11 rapporté sur celle-ci, appliqué et de toute façon ancré sur la bande annulaire extérieure de la partie elle-même. The wheel consists of two complementary parts or shells 10, 10 (see FIG. 1) produced by stamping, for example made of polypropylene or another material. Each part or shell 10, 10 of the wheel is provided with a peripheral bandage 11, 11 attached to it, applied and in any case anchored on the outer annular band of the part itself.

Les deux parties de la jante sont réciproquement symétriques et sont munies de moyens, sous la forme de chevilles 12 et de manchons 12' s'encastrant l'un dans l'autre pour un accouplement et un assemblage axial, dans le plan médian, de la jante résultante. Les deux parties assemblées définissent le moyeu 13 de la jante, la bande externe 14 et les rayons 15 entre le moyeu et la bande annulaire. Certaines parties, telles que celles des zones annulaires externes 14 et des rayons 15 peuvent être creuses (voir figure 2), pour assurer la légèreté de l'article, si ce n'est pas au détriment de sa résistance évidemment. The two parts of the rim are reciprocally symmetrical and are provided with means, in the form of pins 12 and sleeves 12 'fitting one inside the other for coupling and axial assembly, in the median plane, of the resulting rim. The two assembled parts define the hub 13 of the rim, the external strip 14 and the spokes 15 between the hub and the annular strip. Certain parts, such as those of the outer annular zones 14 and the spokes 15 may be hollow (see FIG. 2), to ensure the lightness of the article, if this is not to the detriment of its resistance, of course.

Les revêtements 11, 11 de la bande externe des deux parties 10, 10 constituent directement le bandage complet de la roue par suite de l'accouplement des deux parties complémentaires et qui aura le motif superficiel permettant d'obtenir le degré d'adhérence au sol de la roue recherché. The coverings 11, 11 of the external strip of the two parts 10, 10 directly constitute the complete tire of the wheel as a result of the coupling of the two complementary parts and which will have the surface pattern making it possible to obtain the degree of grip on the ground. of the wheel sought.

Bien entendu, l'invention n'est pas limitée à l'exemple de réalisation ci-dessus décrit et représenté, à partir duquel on pourra prévoir d'autres modes et d'autres formes de réalisation, sans pour autant sortir du cadre de l'invention.  Of course, the invention is not limited to the embodiment described above and shown, from which one can provide other modes and other embodiments, without departing from the scope of the 'invention.

Claims (3)

REVENDICATIONS 1. Roue destinée en particulier, mais pas exclusivement, à des tricycles et similaires, caractérisée en ce qu'elle est constituée de deux parties complémentaires (10, 10), obtenues par matriçage, chacune dotée d'un revêtement de couverture périphérique (11, 11), disposées en opposition et assemblées face à face, le revêtement de couverture périphérique des deux parties complémentaires formant le bandage complet de la roue obtenue, une fois lesdites deux parties assemblées.1. Wheel intended in particular, but not exclusively, for tricycles and the like, characterized in that it consists of two complementary parts (10, 10), obtained by stamping, each provided with a peripheral covering coating (11 , 11), arranged in opposition and assembled face to face, the peripheral covering coating of the two complementary parts forming the complete tire of the wheel obtained, once said two parts are assembled. 2. Roue selon la revendication 1, caractérisée en ce que les deux parties complémentaires (10, 10) sont munies de chevilles et de manchons (12, 12') s'encastrant les uns dans les autres pour l'assemblage face à face des deux parties et dans laquelle le revêtement formant bandage comporte des motifs superficiels qui permettent d'obtenir l'adhérence au sol désirée.2. Wheel according to claim 1, characterized in that the two complementary parts (10, 10) are provided with dowels and sleeves (12, 12 ') fitting into one another for the face-to-face assembly of two parts and in which the covering forming a bandage comprises surface patterns which make it possible to obtain the desired adhesion to the ground. 3. Roue selon les revendications 1 et 2, caractérisée en ce que le revêtement formant bandage est appliqué par pression ou rapporté et fixé sur la partie respective de la roue. 3. Wheel according to claims 1 and 2, characterized in that the coating forming a tire is applied by pressure or attached and fixed on the respective part of the wheel.
FR9604472A 1995-09-01 1996-04-10 Tricycle wheel formed of plastics material in matching halves Pending FR2738188A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITPN950075 1995-09-01

Publications (1)

Publication Number Publication Date
FR2738188A1 true FR2738188A1 (en) 1997-03-07

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
FR9604472A Pending FR2738188A1 (en) 1995-09-01 1996-04-10 Tricycle wheel formed of plastics material in matching halves

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FR (1) FR2738188A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1234656A1 (en) * 2001-02-23 2002-08-28 M.J.F.I. Wheel, notably for light vehicles, and its method of manufacture
FR2857297A1 (en) 2003-07-08 2005-01-14 Ereva Wheels Vehicle e.g. stroller, wheel, has wheel rim whose curved sides are provided with anchoring unit for mono-block tire tread which recovers sides such that rim and tread constitute shock absorber, on irregular ground

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1386593A (en) * 1971-02-19 1975-03-12 Revvo Castor Co Ltd Production of rotary elements
EP0045340A1 (en) * 1980-07-10 1982-02-10 Giuseppe Pellegrino Two-part moulded wheel made of plastic material for children's vehicle
US4818034A (en) * 1987-12-28 1989-04-04 Unarco Industries, Inc. Shock absorbing wheel
US5316377A (en) * 1992-04-29 1994-05-31 Poly-Flex, Inc. Composite injection-blow molded wheel and method of fabrication

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1386593A (en) * 1971-02-19 1975-03-12 Revvo Castor Co Ltd Production of rotary elements
EP0045340A1 (en) * 1980-07-10 1982-02-10 Giuseppe Pellegrino Two-part moulded wheel made of plastic material for children's vehicle
US4818034A (en) * 1987-12-28 1989-04-04 Unarco Industries, Inc. Shock absorbing wheel
US5316377A (en) * 1992-04-29 1994-05-31 Poly-Flex, Inc. Composite injection-blow molded wheel and method of fabrication

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1234656A1 (en) * 2001-02-23 2002-08-28 M.J.F.I. Wheel, notably for light vehicles, and its method of manufacture
FR2821289A1 (en) * 2001-02-23 2002-08-30 Mjfi WHEEL, PARTICULARLY FOR LIGHT VEHICLES, AND MANUFACTURING METHOD THEREOF
FR2857297A1 (en) 2003-07-08 2005-01-14 Ereva Wheels Vehicle e.g. stroller, wheel, has wheel rim whose curved sides are provided with anchoring unit for mono-block tire tread which recovers sides such that rim and tread constitute shock absorber, on irregular ground

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