Combined-type spoke

A composite, spoke technology, applied in the field of spokes, can solve the problems of insufficient performance, high fracture rate, heavy weight, etc., and achieve the effect of reducing weight, reducing weight and preventing fracture

Active Publication Date: 2010-08-25
D MAG KUNSHAN NEW MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002]Existing common spokes such as Figure 1, it usually includes an elbow part 1 at the end, a main body part 2 in the middle and a thread part 3 at the other end. The cross section of the main part 1 is usually circular, but this Spokes are usually all made of metal, which ...

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] see image 3 , a composite spoke, including an elbow 1, a main body 2 and a screw thread 3, such as image 3 a and 3b, the outer surface of the main body 2 is covered with a carbon fiber layer 4 .

Embodiment 2

[0024] see Figure 4 , Figure 5 , a composite spoke, comprising an elbow 1, a main body 2 and a screw thread 3, the outer surface of the main body 2 is covered with a carbon fiber layer 4.

[0025] Such as Figure 5 b, the cross-sectional shape of the main body 2 (the cross-section is a plane perpendicular to the paper and the length direction of the spokes) is a closed figure composed of two horizontal parallel straight lines up and down and two convex arcs on the left and right.

[0026] Such as Figure 5 a, the maximum diameter of the main body part 2 is larger than the diameter of the joint between the elbow part 1 and the main body part 2, and the connection between the main part 2 and the elbow part 1 forms a trapezoidal connection section in front view, that is, the transition between the diameter and the cross-sectional shape part. The maximum diameter of the main body part 2 is larger than the diameter of the connection position between the screw thread part 3 an...

Embodiment 3

[0028] Such as Figure 6 , Figure 7 , a composite spoke, including an elbow 1, a main body 2 and a screw thread 3, such as Figure 6 b, the cross-section of the main body (this cross-section is a plane perpendicular to the paper and perpendicular to the length direction of the spokes) is elliptical, the main body 2 has a plurality of small holes 21, and the outer surface of the main body 2 is covered with a carbon fiber layer 4. The small hole 21 provided in the main body part 2 can further reduce the weight.

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PUM

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Abstract

The invention relates to a spoke, in particular to a spoke for a wheel rim of a bicycle or a motorcycle. A combined-type spoke comprises an elbow part, a main body part and a screw tooth part, wherein the outer surface of the main body part is coated with a carbon fiber layer; the outer surface of the main body part is provided with a plurality of ring-shaped grooves; the main body part forms a fishbone shape along the section of the length direction; the section shape of the main body part is a rectangle, an oval or a closed figure formed by an upper horizontal straight line and a lower horizontal straight line which are parallel, and a left convex-outward arc line and a right convex-outward arc line; and the main body part is provided with a plurality of small holes. The combined-type spoke reduces the weight on the basis of ensuring the strength, so as to prevent fracture.

Description

technical field [0001] The present invention relates to a spoke, especially a spoke for a bicycle or motorcycle rim. Background technique [0002] Existing common spokes such as figure 1 As shown, it usually includes an elbow 1 at the end, a main body 2 at the middle, and a screw thread 3 at the other end. The cross section of the main body 1 is usually circular, but such spokes are usually all made of metal and are heavy. It cannot adapt to some occasions with high requirements, and some spokes are made of full carbon fiber, such as figure 2 , although this kind of spoke is light in weight, performance is insufficient, and fracture rate is higher (10% or above) in use. Contents of the invention [0003] The object of the present invention is to provide a composite spoke, which reduces weight and prevents fracture while ensuring strength. [0004] The present invention is achieved in the following way: a composite spoke, comprising an elbow part, a main part and a thre...

Claims

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Application Information

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IPC IPC(8): B60B1/02
CPCB60B2360/3416B60B2900/311B60B5/02B60B1/0246B60B2310/242
Inventor 涂季冰
Owner D MAG KUNSHAN NEW MATERIAL TECH CO LTD
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