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Wheels made of composite materials

A technology of rims and wheels, which is applied to wheels, rims, wheels, etc. made of non-metallic materials, can solve the problems of waste, cost, heavy rims, etc., and achieve the effect of saving fibers

Active Publication Date: 2019-02-19
MAVIC SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such a manufacturing process involves the additional use of material to be scrapped and is therefore very expensive and leads to a certain degree of waste
Furthermore, the rim thus produced will be heavier than necessary, since not all of the additional material placed has to be machined

Method used

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  • Wheels made of composite materials
  • Wheels made of composite materials
  • Wheels made of composite materials

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0063] figure 1 The wheels shown in will be mounted on the bicycle. According to a first embodiment of the invention, the wheel comprises a rim 1 , spokes 9 and a hub 10 around the axis A of symmetry. Thus, the wheel is a spoked wheel. The rim 1 has an annular shape and comprises two sides 3 , 4 (only one is visible in this view) and a part 8 connecting the sides. According to an alternative embodiment, the spokes 9 are covered by a wheel disc. According to other optional embodiments, the wheel further includes a brake disc. All the embodiments based on the first embodiment of the invention have in common that the cover containing the braking area 2 (ie the sides 3, 4), the part 8 connecting the sides, the brake disc or the spokes 9 On the part of , the braking area 2 containing the macrostructure 6 is provided. This braking area 2 is made of composite material and it covers at least a part of this area.

[0064] In each case, the braking area 6 can be arranged on both s...

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Abstract

The rim (1) has a braking zone (2) that is primarily made of composite material, where the braking zone is designed to receive a braking body. The braking zone is arranged with a macroscopic structure (6) on its surface. The macroscopic structure is conditioned so as to interrupt and / or to evacuate a water film in the braking zone. The macroscopic structure is realized in only one of composite matrix material. The macroscopic structure is arranged with a set of cavities (11) that is engraved with laser. An independent claim is also included for a method for manufacturing a rim.

Description

technical field [0001] The invention relates to a rim (jante) or a part of a rim made of composite material. Said rims are used for vehicles, such as bicycles, wheelchairs and transport devices, which are propelled by muscular power, have one or two voie, and are used for one or more people. Background technique [0002] Rims or rim sections made of composite materials are particularly popular with cyclists because of the stiffness-to-weight ratio they offer. The options for selecting materials for the production of composite rims are very large. For example glass fibers, carbon fibers or aramid fibers embedded in a matrix which may be of thermoplastic or thermosetting type may be used. Furthermore, it is also possible to select fibers of different lengths and arranged in different configurations relative to each other. For example, a combination of staple fibers in a thermoplastic matrix can be used to manufacture rims by injection molding. [0003] Document EP1625028A1...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60B5/02B60B21/08
CPCB60B1/003B60B5/02B60B21/08B60B2310/226B60B2310/228B60B2310/656B60B2360/341B60B2360/344B60B2360/36B60Y2200/134
Inventor M·达瓦纳
Owner MAVIC SA