公开(公告)号：US20180202477A1

公开(公告)日：2018-07-19

申请号：US15855236

申请日：2017-12-27

Applicant: FUTABA INDUSTRIAL CO., LTD.

Inventor： Fumiki Nagae

IPC: F16B7/18

CPC classification number: F16B7/182

Abstract: Provided is a joining process of two pipes, which can reduce man-hours of the joining process and join the cylindrical pipes together at high accuracy. A first pipe comprises, at an end thereof, an insertion portion having a cylindrical shape to be inserted into a second pipe. The second pipe comprises, at an end thereof, a receiving portion having a tubular shape into which the insertion portion is inserted. A cross sectional shape of at least a hollow portion of the receiving portion, perpendicular to a central axis thereof, is circular. At least one threaded hole is arranged in an area where the receiving portion and the insertion portion overlap each other. The at least one threaded hole penetrates the receiving portion and the insertion portion in a radial direction. A bolt is threadedly engaged in the at least one threaded hole.

公开(公告)号：US20200256366A1

公开(公告)日：2020-08-13

申请号：US16864628

申请日：2020-05-01

Applicant: FUTABA INDUSTRIAL CO., LTD.

Inventor： Fumiki Nagae

IPC: F16B7/18

Abstract: Provided is a joining process of two pipes, which can reduce man-hours of the joining process and join the cylindrical pipes together at high accuracy. A first pipe comprises, at an end thereof, an insertion portion having a cylindrical shape to be inserted into a second pipe. The second pipe comprises, at an end thereof, a receiving portion having a tubular shape into which the insertion portion is inserted. A cross sectional shape of at least a hollow portion of the receiving portion, perpendicular to a central axis thereof, is circular. At least one threaded hole is arranged in an area where the receiving portion and the insertion portion overlap each other. The at least one threaded hole penetrates the receiving portion and the insertion portion in a radial direction. A bolt is threadedly engaged in the at least one threaded hole.