Bicycle wheel rim structure

Abstract

The invention discloses a bicycle wheel rim structure which comprises a hub, spokes and a wheel rim, wherein both ends of each spoke are respectively connected with the hub and the wheel rim, five spokes are arranged in each spoke group, the spokes in each spoke group are arranged and woven in the proportion of 2: 3, and the hub and the wheel rim are connected with at least three spoke groups. The bicycle wheel rim structure can balance the acting forces of the hub and each spoke, the stress on each spoke connected with both sides of the hub is more balanced, and the acting forces applied to the spokes are basically the same with little difference; a variable force of thrust force or pulling force is not alternately applied to the spokes by the hub and the wheel rim; the fatigue effect of the spokes can be greatly reduced and eliminated, thereby prolonging the service life; the integral balance of the bicycle wheel rim is better, and the bicycle is more comfortable when ridden.

Description

Technical field: [0001] The invention relates to the technical field of bicycles, in particular to a bicycle rim structure. Background technique: [0002] With the improvement of people's living standards, the awareness of environmental protection and the improvement of fitness needs, bicycles are not only a means of transportation, but also a kind of fitness equipment, which are more and more popular among people, and higher requirements are also put forward for bicycles. The comfort when riding, the balance and durability of the bicycle, etc. [0003] Among them, the wheel rim of the bicycle is connected to the hub through spokes, and the spokes are interlaced on the left and right sides of the hub at a ratio of 1:1, and the hub side of the bicycle is provided with a chain transmission mechanism or a brake device (such as a disc brake device), the chain transmission mechanism or brake device exerts a force on one side of the hub, corresponding to the chain transmission me...

AI Technical Summary

Problems solved by technology

[0003] Among them, the wheel rim of the bicycle is connected to the hub through spokes, and the spokes are interlaced on the left and right sides of the hub at a ratio of 1:1, and the hub side of the bicycle is provided with a chain transmission mechanism or a brake device (such as a disc brake device), the chain transmission mechanism or brake device exerts a force on one side of the hub, corresponding to the chain transmission mechanism of the rear wheel, or the disc brake device of the front wheel and rear wheel, the chain transmission mechanism or brake device makes the hub The left and right sides of the bicycle, each spoke and the rim are unbalanced in force, the balance performance of the bicycle is poor, and the tension of each spoke is uneven, and some of the spokes with greater force are often subject to a change of thrust and pull alternately. The effect of force, there is a serious fatigue effect, it is very easy to be damaged, and its service life is much less than the normal service life, which seriously shortens the service life

[0004] In order to solve this problem, the existing Chinese patent No. "01244882.6" and the patent name "bicycle rim matching spokes in double ratio" discloses a solution in which the spokes are 1:2 Proportional staggered connections are made on the left and right sides of the hub, and the weaving rule is the common proportional staggered spacing. This solution still cannot solve the above problems. The effect on the spokes on the side with a large number of spokes is relatively small, and the number of spokes is large. The spokes on one side of the spoke are more affected. For a single spoke, the force exerted by the hub on each spoke is still unbalanced, and some spokes are always subjected to alternating thrust and pull, and there are still serious problems. Fatigue effect, very easy to be damaged, the service life is still short

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