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bicycle hub device

A bicycle and flower hub technology, applied in the field of bicycle hub devices, can solve the problems of flywheels, freewheels, tower bases, insufficient strength of aluminum, easy deformation, etc., and achieve the effects of widening the design space, reducing weight and increasing speed ratio

Active Publication Date: 2017-06-09
深圳旭祯精密五金制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But this will cause the flywheel and freewheel to be vulnerable, because although the aluminum material is light, it is not strong enough and easy to deform

Method used

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Embodiment Construction

[0026] Below in conjunction with accompanying drawing and specific embodiment, the present invention will be further described:

[0027] See Figure 1 to Figure 6 , The present invention relates to a bicycle hub device, and its preferred embodiment includes a freewheel body 10, a bearing 20, a shaft sleeve 30 and a flywheel set.

[0028] The tower base 10 is hollow and has openings at both ends, and the shaft sleeve 30 is hollow and has openings at both ends. The shaft sleeve 30 is coaxially sleeved outside the bearing 20 , and the tower base 10 is detachably coaxially sleeved on the shaft sleeve 30. Outside, flywheel group is located at outside tower base 10.

[0029] In this way, the freewheel body 10 and the bushing 30 adopt a detachable installation design, which is convenient for assembly and maintenance, and widens the design space of the hub.

[0030] Preferably, the body base 10 is connected to the shaft sleeve 30 through threads. Specifically, the inner peripheral ...

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Abstract

The bicycle hub device includes a tower base, a bearing, a shaft sleeve and a flywheel group; the tower base is hollow with two ends open, the shaft sleeve is hollow and both ends are open, the shaft sleeve is coaxially sleeved outside the bearing, and the tower base is detachable The coaxial sleeve is arranged outside the shaft sleeve, and the flywheel is arranged outside the tower base. The above invention is easy to assemble and maintain, can maximize the speed ratio, can not only reduce the weight of the flower hub, but also ensure the strength of the flower hub, realize light weight and prolong the service life.

Description

technical field [0001] The invention relates to a bicycle hub device. Background technique [0002] The bicycle flower hub device is located on the axle hub of the wheel, and the design of the flower hub device directly affects the performance of the bicycle such as the speed ratio. The tower base and the shaft sleeve of the existing hub device are integrally formed. For the needs of installation and maintenance, the flywheels at all levels are either all detachable and installed on the tower base, or all are integrally formed with the tower base. In this way, not only the installation and maintenance are very limited It is inconvenient and limits the design of the smallest flywheel. [0003] In addition, as we all know, the fewer the number of teeth of the flywheel, the higher the bicycle speed ratio, while the minimum flywheel of the hub device of the existing single-speed bicycle is 9 teeth, and the minimum flywheel of the hub device of the variable speed bicycle is 11 t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60B27/04
Inventor 余迪青
Owner 深圳旭祯精密五金制品有限公司
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