| 摘要 |
PURPOSE: A wedge-type tube and a bicycle including the same are provided to support load of passenger by making a seat post to have a circular cross-section. CONSTITUTION: A wedge-type seat post includes a hollow wedge-shaped tube(100) and a core(200). A wedge-type tube is inserted into a seat tube(ST) of the bicycle frame. The core is equipped between the wedge-type tube and seat tube and supports the wedge-type tube inside the seat tube. The wedge-type tube includes a tube(110) and a head(120). One area of the tube is inserted into the seat tube. The head is extended from one side of the tube and is combined with a saddle.
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