| 摘要 |
PROBLEM TO BE SOLVED: To try to observe safety, and to reduce labor for an operator working for boring a pipe. SOLUTION: This pipe boring machine 10 is formed out of a fixed side frame 11 to be detachably mounted to the tip end of an arm 2 of a work machine such as a hydraulic shovel 1 and the like, a movable side frame 12 disposed onto the fixed side frame 11 so as to be made slidable, a rotary cutting blade 13 rotatably disposed to the movable side frame 12, a rotating means rotating the rotary cutting blade 13, a guide plate 14 integrally fixed to the fixed side frame 11 for positioning and holding the machine, and protecting the blade, and of a slide means for sliding the rotary blade 13 together with the movable side frame 12, and the aforesaid pipe boring machine is so designed as to be mounted to the tip end of the arm 2 of the work machine such as the hydraulic shovel 1 as an attachment.
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