发明名称 Drop test device
摘要 A drop test apparatus (10) for testing the resiliency of playground surfaces (12) includes a drop module (14) and a release mechanism (16) for holding the drop module (14) at an elevated reference height and releasing the drop module (14) to fall to the surface (12). Vertically-extending guide elements (18) guide and maintain the drop module (14) in a constant attitude from release until surface (12) impact. A support structure (24) extends between the guide element's upper (20) and lower (22) ends and holds the guide element (18) in a generally vertical orientation above the surface (12). Both the guide element (18) and support structure (24) comprise a plurality of interconnecting collapsible and disassemblable parts allowing a single person to rapidly convert the support structure (24) and the guide element (18) between the operational surface-testing configuration and a compact configuration for convenient transport.
申请公布号 US5390535(A) 申请公布日期 1995.02.21
申请号 US19940217984 申请日期 1994.03.25
申请人 DETROIT TESTING LABORATORY, INC. 发明人 SMOCK, DANIEL D.;PARRY, LESLIE R.
分类号 G01N3/00;G01N3/48;G01N33/42;(IPC1-7):G01N3/00 主分类号 G01N3/00
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