Honda Giken Kogyo Kabushiki Kaisha

Kunio Kishino

Hisashi Masuda

Yoshiki Ishige

Shoji Sato

Yoji Ushiki

Junichi Saita

Tuneo Ishihara

Syuno Kumagai

Kazuhide Matsuo

Toshihiko Matsubara

Shigeo Kaiho

Tadashi Takeo

Niichi Toyama

Nobuyoshi Nagatsuma

Uhee Kikuchi

Junichi Murayama

Masatoshi Kawaguchi

Hiroshi Yoshinaga

Norio Tajima

Toshihiko Saga

Hisao Hirono

Kazuto Iiyama

Hideki Takashima

Katsushi Sadamitsu

Fusao Nakajima

Shohei Hayakawa

Masayoshi Higashi

Akitaka Inou

Tetsuo Iwahashi

Sousuke Sese

Takashi Nagamine

An automobile bumper comprises a bumper face and a bumper beam constructed of members molded of thermoplastic resin. The bumper beam includes at least two members of thermoplastic resin having flanges for forming beam flanges together when the members are fused to each other, the beam flanges being fused to an inner surface of the bumper face. An FRP sheet is continuously heated in an atmosphere having a temperature successively lowered from a temperature higher than a resin melting temperature at which a resin of the FRP sheet is melted so that the entire FRP sheet is increased through successive heating stages to a temperature between the resin melting temperature and a resin degradation temperature at which the resin of the FRP sheet is degraded. Heaters are brought into close proximity with joining surfaces to be fused of at least two parts of synthetic resin with a prescribed spacing therebetween for melting the joining surfaces, and thereafter the melted joining surfaces are pressed against each other to fuse the parts together. At least one of the at least two parts comprises an FRP product made of glass fibers reinforced with a thermoplastic resin, the joining surfaces of the FRP product having a plurality of projections containing the thermoplastic resin only, the projections being melted when the parts are fused together.

Automobile bumper constructed of fused resin members

Method of and apparatus for fusing resin members such as bumper beam and

An iron-base article such as a camshaft has a remelted layer of high wear resistance on a cam surface, for example. To make such an iron-base article, molten metal is poured into a mold with a chill set therein to cast an iron-base article having a chilled region formed in contact with said chill. Then, metal powder which provides wear resistance upon being mixed is added to at least a portion of said chilled region. A high level of energy is applied to the portion of the chilled region to heat and remelt the same, and the remelted portion is thereafter cooled to form a remelted layer therein.

Method of making iron-base articles having a remelted layer

An apparatus for roll-forming a blank ring into an annular product such as a seamless wheel rim. The apparatus includes an annular die rotatably supported in a die head, and a pressure roll rotatably supported in a roll head and movable toward and away from the annular die. The apparatus further includes a cylinder unit for moving the pressure roll radially of the annular die when the pressure roll is in the annular die, whereby the blank ring can be interposed between the pressure roll and the annular die. As the die is rotated, the blank ring is roll-formed between the roll and the die into an annular ring, which then is confined in the annular die and can be taken out when the die is disassembled into a plurality of segments. The product thus formed has a high degree of circularity and precision, and is free from distortions.

Apparatus for roll-forming seamless annular products

Growing community of inventors

Tochigi, Japan

Kunio Kishino