专利名称：Spring arrangement for a recreational
structure
发明人：Craig E. McGee,Jeffry L. VanElverdinghe,Craig
Adams
申请号：US11379770
申请日：20060421
公开号：US07628731B2
公开日：
20091208
专利内容由知识产权出版社提供
专利附图：
摘要：A spring arrangement for a trampoline includes a rebounding surface, a frame structure having a top portion and a bottom portion, and a plurality of spring members
that are mechanically coupled between the rebounding surface and the frame structure.
A first group of spring members are mechanically coupled to the top portion of the frame structure and a second group of spring members are mechanically coupled to the bottom portion of the frame structure. In one illustrative embodiment, each spring member of the second group of spring members has a frame hook member that is mechanically coupled to the bottom portion of the frame structure and a bed hook member that includes an end portion that is configured to be within a projection of a body of the spring member and is coupled to the rebounding surface.
申请人：Craig E. McGee,Jeffry L. VanElverdinghe,Craig Adams
地址：Allen TX US,Beaverton OR US,Portland OR US
国籍：US,US,US
代理机构：Harness, Dickey & Pierce, P.L.C.
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>spring framework和spring的关系

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