| 摘要 |
Safety wheel characterized in that it consists of a rim and removable rim, characterized in that it consists of a rim divided diametrically and vertically into two complementary halves, which are identical to each other, which, when joined by any suitable element, defines individual circular hollows which accommodate the circular bead which internally finishes off the central membrane in a preferably lens-shaped and duly calibrated manner, which divides the casing into two compartments. In a variant embodiment, it is possible to use a wheel with two twin tyres, one in each half of the same removable rim. <IMAGE>
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