发明名称 SLEEVE FOR CONCRETE THROUGH-HOLE
摘要 PROBLEM TO BE SOLVED: To provide a sleeve for a concrete through-hole which is excellent in workability, and which is satisfactory in the finishing of a concrete structure for preventing concrete from invading into a sleeve.SOLUTION: A sleeve 10 is constituted of a sleeve body 12 consisting of an inner cylinder 14 and an outer cylinder 22 which are overlapped with each other so that they can expand in an axial direction and fixation retainers 40A, 40B having flange-shaped protrusions 44 which are engaged with grooves 18 and 28 inside both ends of the sleeve body 12. A part of an O ring 50 adhered to the inner peripheral surface of the sleeve body is stored in a groove 48 disposed on the cylindrical part outer peripheral surfaces of the fixation retainers 40A and 40B. A nail 58 is driven into a rib 54 inside the fixation retainers 40A, 40B, and the fixation retainers 40A and 40B are attached on mold inner surfaces 60A and 60B, and the shortened sleeve body 12 is inserted into a space between reinforcing iron bars 62, and concrete 64 is placed in the mold 60, and concrete is poured. The mold 60 is removed after curing, and the fixation retainers 40A, 40B are removed from the sleeve body 12.
申请公布号 JP2013142247(A) 申请公布日期 2013.07.22
申请号 JP20120002960 申请日期 2012.01.11
申请人 ASANO MIKI;NAMBA KAZUO;GLOBAL OCEAN INC 发明人 ANTOKU HIROMITSU
分类号 E04G15/06 主分类号 E04G15/06
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