To provide a method for confirming the interior of a utility pole made of concrete capable of preventing the fluctuation of an imaging means for imaging the interior of the hollow part of the utility pole made of concrete and capable of efficiently performing confirmation work due to imaging processing in a short time.
A camera 41 is fixedly attached to the wire 20, which has a weight 25 attached to its lower end part by an attaching member 43 and a camera cord 47 is also fixedly attached by an attaching part 45. The weight 25 provided in the lower end part of the wire 20 is suspended into the almost center of the hollow part 5 along with the camera 41 from the opening part 7, which is formed in the side part of the utility pole 1 made of concrete, using a pipe 13 and the wire 20 is suspended downward to come into contact with the bottom of the lowermost end part of the utility pole 1 made of concrete and drawn up to be tensioned so as to erect the weight 25 when the weight 25 is brought into contact with the bottom to fall. Then, the interior of the hollow part of the utility pole 1 made of concrete is photographed by the camera 41 in a state that the wire is tensioned.
ATOYAMA MASATO
Masakazu Ito
Shunichi Takahashi
Toshio Takamatsu
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