发明名称 Trampoline system with systematically phased spring elements
摘要 Springs (10) or other elastic connectors used to support a bed (14) within the frame of a trampoline or the like are attached using methods that systematically vary the tension (or the travel distance required to reach limit of elasticity) between adjacent (or sets of adjacent) springs (10). These spring attachment methods increase the time it takes a given trampoline to absorb a given amount of energy, increasing the shock absorption time and thereby reducing the likelihood of an injury.
申请公布号 US6840891(B2) 申请公布日期 2005.01.11
申请号 US20020110884 申请日期 2002.04.15
申请人 发明人
分类号 A63B5/11;(IPC1-7):A63B5/11 主分类号 A63B5/11
代理机构 代理人
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