发明授权
- 专利标题: Structure of a hula-hoop
- 专利标题(中): 呼啦圈的结构
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申请号: US59035申请日: 1998-04-13
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公开(公告)号: US5997449A公开(公告)日: 1999-12-07
- 发明人: Joseph Chen Lung Lee
- 申请人: Joseph Chen Lung Lee
- 专利权人: Lee; Joseph Chen Lung
- 当前专利权人: Lee; Joseph Chen Lung
- 主分类号: A61H15/00
- IPC分类号: A61H15/00 ; A63B19/00
摘要:
A hula-hoop includes a body having a hollow portion at an inner side thereof, and a plurality of rollers equi-distantly spaced apart and pivotally mounted in the hollow portion of the hula-hoop body. The rollers are covered by a soft outer sleeve and each roller projects slightly from the inner side of the hula-hoop body. When the user turns the hula-hoop at the waist portion, the rollers may enhance the turning of the hula-hoop, and may prevent possible injury to the waist portion. The hula-hoop is easy to dismantle and assemble to facilitate carrying. Additionally, the rollers may massage the waist of the user during play.
公开/授权文献
- USD402992S Cross connection cabinet 公开/授权日:1998-12-22
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