| 摘要 |
A skateboard with an undirectional caster is provided to be able to do a backing motion and to reduce the entire ground clearance of the skate board by solving the problem that upper and lower spaces are occupied to give wedge angle to a caster. A skateboard with an undirectional caster includes a couple of boards(100), one or more casters(200) formed on the bottom of at least one of those boards, a connection portion(300), and a bending portion(320). A connection element(310) connects a couple of boards to form the connection portion. The bending portion limits the longest length of the connection element to prevent any parts of the connection element and the board from coming into contact with the ground when the coupling of the board and the connection element is bent, and to make the board and the connection element bent at a limited angle.
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