Shiroki Corporation

Railway Technical Research Institute

Sumitomo Metal Technology Inc.

Sumikin Osaka Plant Engineering Co., Ltd.

Kosuke Nagai

Hirotsugu Oishibashi

Muneyuki Ohara

Tomohiro Kamiura

Akihiro Hosokawa

Hideshi Miyazaki

A coupled structure with high separation strength and a window regulator. A lift arm () is provided with a tapered through-hole () provided with a first inner wall portion () work-hardened due to plastic deformation and a swell portion () having an inner wall surface () continuing to an inner wall surface () of the tapered through-hole () and provided with a second inner wall portion () work-hardened due to plastic deformation. A driven gear () is provided with a protrusion () fit in from the tapered through-hole () to the swell portion (), provided with an outer wall portion () work-hardened due to plastic deformation, and having an outer wall surface () in close contact with the inner wall surface () of the tapered through-hole () and at least a part of the inner wall surface () of the swell portion ().

Coupled structure and window regulator

Growing community of inventors

Kanagawa, Japan

Kosuke Nagai