Kubota Corporation

Kazuma Harada

Shozo Kishi

Keita Oda

Kohei Ikeda

Ryunosuke Tanaka

Yuito Komaru

Kazuya Ito

Tamon Iden

Akira Yamashita

Provided is a bending angle calculation method capable of saving a worker time and effort. The bending angle calculation method includes: an image capturing step (S) of capturing an image of a pipe in which a first pipe and a second pipe are joined together by a joint; a derivation step (S) of deriving, from the image, a laying direction straight line corresponding to a laying direction of the pipe; and a calculation step (S) of calculating, as a bending angle at the joint, a crossing angle between a laying direction straight line of the first pipe and a laying direction straight line of the second pipe.

Bending angle calculation method and calculation apparatus

A pipe joint in which a seal body and a spacer are mounted from the insides of pipes, wherein: a spigot of one pipe is inserted into a socket of the other pipe; and an annular accommodation space is formed between the inner circumference of the socket and the outer circumference of the spigot. Inside the accommodation space are accommodated: a seal body for sealing the gap between the socket and the spigot; a push ring that presses the seal body to keep the seal body in a compressed state; and a spacer that maintains the interval between the push ring and the deep end of the socket in the pipe axial direction.

Pipe joint, push ring for pipe joint, method for joining pipes

Growing community of inventors

Amagasaki, Japan

Kazuma Harada