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Method of manufacturing a hub sheel for a spoke wheel and hub sheel produced using said method

A manufacturing method and hub technology, applied to spoked wheels, hubs, manufacturing tools, etc., can solve the problems that holes cannot be in any shape, spokes/hubs are inconvenient to design, etc.

Inactive Publication Date: 2008-02-27
MAVIC SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] [14] Also, the current processing technology limits the shape of the spoke hooking eyelets / grooves, so these eyelets cannot be of any shape, which may be very inconvenient for the spoke / hub design

Method used

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  • Method of manufacturing a hub sheel for a spoke wheel and hub sheel produced using said method
  • Method of manufacturing a hub sheel for a spoke wheel and hub sheel produced using said method
  • Method of manufacturing a hub sheel for a spoke wheel and hub sheel produced using said method

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Experimental program
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Embodiment Construction

[0042] [42] In FIGS. 1 to 3 different implementation stages of a prior art hub body are shown.

[0043] [43] FIG. 1 thus shows a rod 10, for example a solid rod of aluminum alloy obtained by extrusion.

[0044] [44] FIG. 2 shows the hub body blank 11 obtained after the first machining stage. The machining operations consist of turning operations and sectioning operations of the rod 11 which give the blank 11 its outer shape and its final dimensions in relation to the hub shaft. Segmenting can be performed before or after turning operations. It is also possible during these operations to form an intermediate bore 12 through which the shaft of the hub will later pass, optionally with chambers forming the bearing grooves.

[0045] [45] It was found that in this case a large amount of material was removed during machining mainly between the side plates 14 and 15 where the spokes are hooked and at the bore 12 . Considerable material can be saved in the region between the side pa...

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Abstract

The present invention relates to a method for manufacturing a wheel hub for a spoke wheel, the wheel hub is arranged with a central rotor, two side boards for hooking spokes. The two side boards connect with each other by a pipe connecting beam, one of the side boards is used for central hole passed through by the wheel hub axis and a plurality of circumferential hole or cut for hooking spokes. The method includes a processing phase, a phase for forming at least one side board of the wheel hub. The method also includes a phase for forming a perforated body (20) containing at least one cylinder central cut (22), moreover, to form the body using a pressing moulding technology of passing through a pressing film.

Description

technical field [0001] [01] The present invention relates to a method of manufacturing a hub body for a spoked wheel. The invention also relates to a hub body produced according to said method, a hub and a spoked wheel comprising the hub body. Background technique [0002] [02] A spoked wheel, such as a bicycle wheel, generally includes a circumferential rim, a central hub, and connecting spokes between the rim and hub. The hub has a central shaft that is fixed to the bicycle frame and a hub body that is rotatably mounted around the shaft. The hub body usually has two side plates connected together by a connecting beam. [0003] [03] The spokes typically used for spoked wheels are either metal or composite. Spokes are usually divided into straight spokes and curved spokes, the two hook ends of the straight spokes are in the straight line of the spoke body, and the head of the curved spoke is bent laterally by the elbow of the spoke body. As a general rule, the retaining ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P23/00B60B1/04
CPCB21D53/26B60B1/042B60B27/023B60B1/041B60B1/0261B60B1/003B60B27/026
Inventor J-L·弗P·拉梅尔
Owner MAVIC SA