发明名称 FIXTURE FOR SAFETY NET FOR MANHOLE
摘要 PROBLEM TO BE SOLVED: To provide a low-cost fixture for a safety net for a manhole, which allows net raw materials at four corner parts of the safety net to pass surely and easily through rings when the safety net is created, enables a fixture body to be mounted after creation of the safety net, enables the ring to surely and easily mounted on the fixture body, and can ensure safety because a load is not exerted on the net raw material even if friction and the like arise when the safety net is provided in a tensioned state. SOLUTION: This fixture for the safety net for the manhole comprises: a synthetic resin ring 8 for holding the safety net, through which each of the net raw materials at the four corner parts of the safety net is passed; the fixture body 9 whose one-end side is formed with a hook part 11 into which the ring 8 is fitted, and whose other-end side is formed with a hook part 13 locked to a rib provided in a frame of a manhole lid; and a hook closing member 10 which can be pivoted on an end of the hook part 11 and hooked on an end of the hook part 13.
申请公布号 JP2003082696(A) 申请公布日期 2003.03.19
申请号 JP20010273424 申请日期 2001.09.10
申请人 MIYAMA IND CORP 发明人 TAKAHASHI EIZO
分类号 E02D29/12;(IPC1-7):E02D29/12 主分类号 E02D29/12
代理机构 代理人
主权项
地址