| 摘要 |
A set of wheels with a system for rotation and transposition of obstacles, for bases of travel bags, trunks and similar, comprising a support whose nucleus has a central bore and from which terminals are projected, in the quantity of three or more, which, in their turn, also have bores on their ends where the wheels are attached; when the user pulls the baggage or the kind, the wheels of contact with the surface normally rotate on their shafts, by the terminals of their supports, on the sides of the base; when it finds an obstacle, with the stress offered, the supports begin to rotate on their shafts on the sides of the base, thus making the wheel or subsequent wheels of the wheels, rotate on the obstacle, and going over it easily and the user does not have to make bigger strength and can normally take the base with the bag or the kind.
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