| 摘要 |
#CMT# #/CMT# The device has a tube (1) made of a flexible material, partly filled with contents (2) such as liquid, sand or bulk goods with a low density and weighted, where the tube has a closed form. The tube has two separate chambers with different lengths, where the smaller chamber is provided inside/outside the bigger chamber. The bigger chamber is completely filled with air and the smaller chamber is filled with the liquid or bulk material through a valve. Holders are provided on a lower area of the tube to fasten the tube to a base, where the holders are designed as lugs, knobs or straps. #CMT#USE : #/CMT# Used for games or sports for performing successive jumps (claimed) by children, young people or adults. #CMT#ADVANTAGE : #/CMT# The tube is partly filled with contents such as liquid, sand or bulk goods with a low density and weighted, thus preventing shifting or lifting the device from a surface, and hence increasing position stability of the device. The bigger chamber is completely filled with air and the smaller chamber is completely filled with the liquid or bulk material, thus preventing runaway of the materials from the tube. The device allows several persons, particularly children, to simultaneously jump with various jumping techniques such as jumps along the circumference, broad jumps to the opposite sides by rotating around a vertical axis, high jumps on the spot, jumps on the knee, jumps in a sitting position, or synchronous jumps. The device does not possess frames or other hard parts, thus reducing the risk of injury. The device is compact and lightweight in an empty condition, and so can be comfortably transported and requires less space during disuse such as in winter. The device possesses a simple structure, and is maintenance-free, economical and user friendly. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows an inflatable jumping device. 1 : Tube 2 : Contents. |
