发明名称 |
HOLLOW CORE PNEUMATIC WHEEL HAVING CONTOUR CONFORMING POLYURETHANE WALL |
摘要 |
A skate wheel including a hard urethane hub formed with a drop center between radially projecting guide flanges, and including stand-off ribs disposed in equidistant spaced relation thereabout. Pairs of centering fins are spaced axially along a number of stand-off ribs thereby forming a central groove along the drop center. An annular bladder with an interior annular stand-off skirt is nested within the centering fins and concentric with the drop center. The wheel body is formed of a soft polyurethane and surrounds the drop center and encapsulates the annular tube, thereby forming a contoured surface. A method of manufacturing the wheel that includes selecting a welded seam annular tube, pre-pressurize it and then further pressurize it through the exothermic reaction by pouring liquid urethane in a mold to form the tire. |
申请公布号 |
EP0921954(A4) |
申请公布日期 |
1999.11.10 |
申请号 |
EP19970933376 |
申请日期 |
1997.07.11 |
申请人 |
THE HYPER CORPORATION |
发明人 |
PIPER, NEAL;PETERSON, TOM |
分类号 |
A63C17/22;A63C17/24;B29C39/00;B29C70/74;B29C70/84;B29D30/02;B60C5/00;B60C5/01;B60C5/02;B60C5/04;B60C7/10;B60C7/12;(IPC1-7):B60C5/01;B60C29/00 |
主分类号 |
A63C17/22 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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