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发明公开
CN105270545A 自行车的车架 无效 - 驳回

自行车的车架
摘要：
本发明涉及自行车的车架，即便主要使用碳材质将用于构成车架的上管、底管、座管、链管等之外径制造成传统自行车中车架的粗细(主要材料使用金属材质从而以圆形管构成车架时的粗细)，也能确保充分的强度，可相对降低车架的重量。为此，本发明之自行车的车架是，上管、底管、座管分别形成为从一侧末端至另一侧末端其外径相同的管状，且各管的壁厚形成为另一侧末端部分比一侧末端部分相对大，而且各管由碳材质制造。
摘要（英）：

Disclosed herein is a body frame for a bicycle which is able to provide higher strength in such a way to use a carbon material even when the outer diameters of a top tube, a bottom tube, a seat tube, a chain tube, etc. have the thickness of a body frame of a classical bicycle, while relatively reducing the weight of the body frame. For this, the body frame for a bicycle according to the present invention is configured in such a way that each of the top tube, the bottom tube and the seat tube is made in a circular shape wherein the outer diameters are same from one end to the other end of each tube, and the flesh thickness of each tube is relatively thicker at the other end portion than one end portion, and each tube is made of a carbon material.

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