| 摘要 |
The invention is characterized in that it is essentially constituted by a tubular structure, comprised in its lower part by a semicircular-shaped horizontal tube, slightly braced by horizontal oblique support bars, interlinked among themselves by a horizontal spreader; said tubes, bars and spreader itself, being covered with cloth; horizontal bars posterior end is fixed to vertical bars lower end, superiorly interlinked to a semicircular-shaped horizontal tube, the front ends of which orthogonally pound downwards, limiting vertical sections, inferiorly interlinked to said tube; on said lower horizontal spreader, said bars lower end is fixed, slightly inclined, superiorly interlinked to respective horizontal bars posteriorly interlinked to said horizontal bar; on junction point between said bars, horizontal and inclined, a haunch is fixed.
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