发明名称 STEEL MATERIAL JOINT STRUCTURE AND TAPPING TYPE BOLT USED THEREFOR
摘要 PROBLEM TO BE SOLVED: To provide a steel material joint structure, with which the position of a fixing metal fitting can be adjusted even after the fixing metal fitting is fixed to the steel material, and the margin for position adjustment between first and second steel materials can be increased.SOLUTION: A first plate part 31 of a fixing metal fitting 3 is fixed to a longitudinal first steel material 1 with a first fastening member 4. The first fastening member 4 consists of tapping type bolts which tap when they are inserted into first insertion holes formed on the first steel material 1. The first plate part 31 is provided with first loose holes, each of which has a diameter larger than the shaft diameter of the tapping type bolt, and through which the tapping type bolts are loosely inserted.
申请公布号 JP2015010417(A) 申请公布日期 2015.01.19
申请号 JP20130137808 申请日期 2013.07.01
申请人 OKAMOTO NORIHISA 发明人 OKAMOTO NORIHISA
分类号 E04B1/58;E04B1/24;E04B1/48;F16B7/18;F16B25/00 主分类号 E04B1/58
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