公开(公告)号：US12000507B2

公开(公告)日：2024-06-04

申请号：US17330991

申请日：2021-05-26

Applicant: FUTABA INDUSTRIAL CO., LTD.

Inventor： Daisuke Izumikawa ,  Mikuto Wakayama ,  Masahito Hosoi ,  Takashi Sumiya

IPC: F16L13/14

CPC classification number: F16L13/141 ,  F16L2013/145

Abstract: A pipe extending from a first side toward a second side includes a side wall and a spool. The spool formed in the side wall is bent so as to protrude from an outer circumferential surface of the pipe, and extends to surround the outer circumferential surface. The spool includes a first portion located on the first side and a second portion located on the second side. There is a clearance between the first portion and the second portion in a top region of the spool, and the first portion and the second portion substantially abut each other in a base region.

公开(公告)号：US20250018593A1

公开(公告)日：2025-01-16

申请号：US18760629

申请日：2024-07-01

Applicant: FUTABA INDUSTRIAL CO., LTD.

Inventor： Daisuke Izumikawa ,  Mikuto Wakayama

IPC: B26F1/14

Abstract: In a method for manufacturing a burring processed member, an inner-circumferential surface of a plate-like curved portion is pressed in a first direction, thereby forming a side wall and a seating face, the side wall protruding from a rim of a first hole, the seating face extending from a tip of the side wall. In the method, a circular second hole is formed on the seating face, and the burring processed portion protruding in the first direction from the rim of the first hole is formed. The seating face includes two crests, each situated on a periphery of each end of the curved portion in a circumferential direction, and is slanted such that a seating face height becomes smaller from each of the crests to a substantial center in the circumferential direction.

公开(公告)号：US20230099771A1

公开(公告)日：2023-03-30

申请号：US17942596

申请日：2022-09-12

Applicant: FUTABA INDUSTRIAL CO., LTD.

Inventor： Mikuto Wakayama ,  Daisuke Izumikawa ,  Atsuya Hirade

IPC: B21D17/02

Abstract: A side wall of a pipe is clamped by a first die and a second die to thereby clamp the pipe. The first die and the second die are made to approach each other while an end of the pipe is pressed toward the first die by the third die along a longitudinal direction of the pipe, to thereby form a spool between the first die and the second die. In a state where the spool is clamped by the first die and the second die, the third die is separated from the pipe along the longitudinal direction of the pipe so as to separate the second die and the third die from each other. Clamping of the pipe is released such that the first die and the second die separate from the side wall of the pipe, to thereby unclamp the pipe.

公开(公告)号：US11904372B2

公开(公告)日：2024-02-20

申请号：US17942596

申请日：2022-09-12

Applicant: FUTABA INDUSTRIAL CO., LTD.

Inventor： Mikuto Wakayama ,  Daisuke Izumikawa ,  Atsuya Hirade

IPC: B21D17/02

CPC classification number: B21D17/025

Abstract: A side wall of a pipe is clamped by a first die and a second die to thereby clamp the pipe. The first die and the second die are made to approach each other while an end of the pipe is pressed toward the first die by the third die along a longitudinal direction of the pipe, to thereby form a spool between the first die and the second die. In a state where the spool is clamped by the first die and the second die, the third die is separated from the pipe along the longitudinal direction of the pipe so as to separate the second die and the third die from each other. Clamping of the pipe is released such that the first die and the second die separate from the side wall of the pipe, to thereby unclamp the pipe.

公开(公告)号：US20220003341A1

公开(公告)日：2022-01-06

申请号：US17330991

申请日：2021-05-26

Applicant: FUTABA INDUSTRIAL CO., LTD.

Inventor： Daisuke Izumikawa ,  Mikuto Wakayama ,  Masahito Hosoi ,  Takashi Sumiya

IPC: F16L13/14

Abstract: A pipe extending from a first side toward a second side includes a side wall and a spool. The spool formed in the side wall is bent so as to protrude from an outer circumferential surface of the pipe, and extends to surround the outer circumferential surface. The spool includes a first portion located on the first side and a second portion located on the second side. There is a clearance between the first portion and the second portion in a top region of the spool, and the first portion and the second portion substantially abut each other in a base region.