发明名称 LIFTING DOWN DEVICE FOR LONG MATERIAL
摘要 PROBLEM TO BE SOLVED: To provide a device capable of efficiently bringing a long material into a narrow pit without subdividing the long material. SOLUTION: A front end part of a truck body 2 loaded with rails A is provided with landing wheels 26, 27, the truck body 2 lifted down into the pit 100 is landed on rails 3 by the landing wheels 26, 27, an attitude of the truck body 2 is gradually approximated to a horizontal state with advancing the front end part of the truck body 2 on the rails 3 by the landing wheels 26, 27, and travel wheels 26, 27 of the truck body 2 are placed on the rails 3. Otherwise, a hanger 60 for hanging a cast iron pipe P is suspended by a suspension mechanism 70 at different two points along the longitudinal direction such that a tilt attitude of the hanger 60 can be freely adjusted. In the latter method, a chain 71 cannot function in case of the narrow pit 100. For the purpose of solving this problem, the former method is devised.
申请公布号 JP2001199674(A) 申请公布日期 2001.07.24
申请号 JP20000008628 申请日期 2000.01.18
申请人 TAISEI CORP 发明人 OKAMURA KOSUKE;NISHIDA YASUO
分类号 E21F13/00;B66C1/62;(IPC1-7):B66C1/62 主分类号 E21F13/00
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