| 摘要 |
PROBLEM TO BE SOLVED: To provide a tool capable of easily securing a piping space and incoming work with a minimum excavation work by human power in a short distance laying such as an incoming pipe for gas and water service which can be easily curved even in a place difficult for cutout because of an obstacle such as a water passage or the like and a structure in the circumference. SOLUTION: A bending impact tool 100, provided with a bending bar 300 arranged with a projected bending part at the edge of a round bar arranged with a recessed bending part between an impact bar 400 arranged with a projected bending part at the edge of the round bar arranged with the impact part and a guiding bar 200 arranged with a guiding part at the edge of the round bar arranged with a recessed bending part, is arranged and fitted so as to bend in a same direction and is coupled with a link pin 500. After securing a driving prepairing hole by impacting a temporal bar until bending start point, the impact tool 100 is arranged and inserted so as to bend toward an arrival point and, by being further impacted and driven, the impact tool advances to a target arrival point while bending and is able to secure the piping space and incoming work. COPYRIGHT: (C)2009,JPO&INPIT
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