| 摘要 |
PURPOSE: An air big ball for rolling ball game is able to enjoy rolling ball game in the field by being free to move and take with the state of folding, is able to keep by folding, is able to use continuously by keeping for long time, is able to manufacture air big ball of 5-6m diameter. CONSTITUTION: The air big ball for rolling ball game is characterized by forming spherical rind(3) of 1.5-5m diameter by being faced with circular rind piece(1) of upper and lower part and numerous crescent-shaped rind piece(2) using needlework or adhesives; circular rind piece(1) formed with rind material like woven stuff, synthetic leather, leather; crescent-shaped rind piece(2) to form whole circumference of the outside; forming opening(4) without being faced with fixed length part in one side connected with crescent-shaped rind piece(2); adhering opening cover to cover widen part of opening(4) in crescent-shaped rind piece(2) in one side of opening(4); having sealing device sealed to open and shut opening(4) in opening(4); inserting ad balloon, large balloon or numerous small balloon to swell up 1.5-5m or higher through opening(4) inside of spherical rind(3).
|
