Honda Giken Kogyo Kabushiki Kaisha

Shunji Kobayashi

Teruoki Watanabe

Akio Hidaka

Tadao Kanno

Yukihiro Yaguchi

Shinpei Watanabe

Hiroyoshi Nozaki

Yuzi Ikeda

Shigeo Kaibuki

Hiroshi Moriya

Mitsugu Takahashi

Shoichi Hayashi

Yahiko Nakamura

A hinge pin couples a first hinge receiver mounted on a vehicle body and a second hinge receiver mounted on a door to be installed on the vehicle body. The hinge pin is removed from the vehicle body and the door to separate the vehicle body and the door from each other after the vehicle body and the door have been coated, and the removed pin engages in a hinge pin engaging member. The hinge pin is fed to a position where the vehicle body and the door are to be assembled together, and the hinge pin is removed from the hinge pin engaging member. Then, the removed hinge pin is pressed into the first and second hinge receivers which are aligned with each other, thereby coupling the vehicle body and the door to each other.

Apparatus for feeding and installing hinge pins for motor vehicles doors

A paint priming method which forms, on the surface part of a ferrous material to be treated, a nitride layer with an adequate depth and preferably .epsilon. phase as a main phase thereof, and with no carbon adhesion to the surface thereof, by carrying out a gas soft nitriding treatment with gas components which generate no free carbon. The nitride layer formed on the surface part of the material is used as a presubstrate on which direct painting is possible, thereby providing a simplified and improved presubstrate treatment for painting.

Method of presubstrate treatment for painting utilizing a gas soft

A method for continuously treating an iron member wherein the iron member is first subjected to furnace-brazing in a controlled gas environment and subsequently to a soft-nitriding treatment by addition of ammonia gas (NH.sub.3) to the controlled gas for the brazing. An apparatus for carrying out the method is also provided, and includes three partitioned chambers for brazing, annealing and soft-nitriding the iron member, each chamber being partitioned by a member such as a stainless steel film curtain at opposite sides thereof. A controlled gas feed system communicates with each of the chambers, and an ammonia gas feed system is connected to the soft-nitriding chamber.

Method and apparatus for the continuous furnace brazing and gas

A gas soft-nitriding method which comprises a step of subjecting iron parts to a gas soft-nitriding treatment in a heat treating furnace at a temperature of approximately 550.degree. C.-620.degree. C. in a mixed atmosphere which comprises, when introduced into the furnace, 10%-30% ammonia gas, 2.5%-4.5% total carbon monoxide, and a balance of N.sub.2 gas or an exothermic gas on a volume basis. Thereby, the iron parts are provided with superior fatigue and wear resistance qualities, while production costs and the cost of the treated parts are substantially reduced.

Gas soft-nitriding method

Method and apparatus for the continuous furnace brazing and

Growing community of inventors

Sayama, Japan

Shunji Kobayashi