发明名称 |
Wheelchair compatible lawn swing |
摘要 |
A free-standing lawn swing having a fold down platform which permits access by wheelchair bound users. A ramp platform pivots from a support platform. A crank arm linkage raises and lowers the ramp platform between reclined, loading, and raised, safety positions. A ground ramp section mates to the ramp platform.
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申请公布号 |
US5938283(A) |
申请公布日期 |
1999.08.17 |
申请号 |
US19970934605 |
申请日期 |
1997.09.22 |
申请人 |
BABCOCK, MARTIN;KNUTSEN, GEORGE |
发明人 |
BABCOCK, MARTIN;KNUTSEN, GEORGE |
分类号 |
A47C3/02;A47D13/10;A61G3/06;A61G5/10;A63G9/02;(IPC1-7):A47D13/10 |
主分类号 |
A47C3/02 |
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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