| 摘要 |
<p>The swimming aid is for use in a small pool which has a front current producing plant. Its dimension are adjusted to the size of a swimmer. A belt with fastening straps is connected to the opposite side walls of the pool. Belt and straps consist of elastic material pref. flat rubber, and the belt is wider than the straps. The belt may be formed as a band with knobs or holes. The belt has a fastening buckle, consisting of a rectangular frame and a central spar. The belt sided end of each band has a ring (8), which has limited displacement in a guide on the outside of the belt. The width of the guide is less than that of the belt or the dia. of the ring.</p> |
