Matsushita Electric Works, Ltd.

Tsubakimoto Chain Company

Hiroshi Kikuchi

Kouichi Iwanaga

Masato Tomobuchi

Takeshi Oda

Tatsuo Arai

Tooru Fujiwara

Yoshinori Itou

Sataroh Nasu

Mitsuo Kasahara

A toothed belt particularly suitable for use in general industrial machineries includes a cured rubber belt body, a tensile member embedded in the belt body, and a tooth fabric adhered to the surface of teeth of the belt body. The belt body is formed primarily from a vulcanizable rubber composition containing hydrogenated nitrile rubber and zinc polymethacrylate. The zinc polymethacrylate and the hydrogenated nitrile rubber are blended together in a ratio of from 22:78 to 45:55 parts by weight. To the vulcanizable rubber composition, a vulcanizing agent comprised of peroxide and a reinforcer comprised of carbon black are added, and a mixture is vulcanized and pressed or otherwise molded to form the afore-said cured rubber belt body with the tensile member embedded therein. The tensile member is made of high-strength glass fibers. The glass fibers preferably have a resorcin-formalin-latex layer and an overcoat layer both formed thereon.

Toothed belt

A skew-toothed belt includes tension members, a tooth portion, and a back portion. The tooth portion and the back portion are located on opposite sides of an array of the tension members. The tooth portion is covered with a tooth cloth, which is arranged such that the weft thread extends substantially perpendicular to the tooth trace direction of each skewed tooth. A method for manufacturing the skew-toothed belt includes the steps of: cutting an elongated tooth cloth material obliquely to the weft direction so as to obtain a tooth cloth sheet; bonding the opposite end portions of the tooth cloth sheet extending along the warp together to form a cylindrical tooth cloth; fitting the cylindrical tooth cloth onto a cylindrical die on which tooth-profiled grooves are formed; sequentially winding the tension members and an unvulcanized rubber compound sheet onto the fitted cylindrical tooth cloth; subjecting the resultant assembly to forming and vulcanization in a pressure chamber; and cutting the resultant cylindrical body into annular toothed belts, each having a predetermined width.

Skew-toothed belt and method for manufacturing the same

A casing for an electric appliance provided on its outer surface with a plurality of minute tapered projections which are of 15 to 30 microns in height and bottom diameter whereby a minute projections shed the water wetting the body resulting in the water not having a bad effect upon the electric appliance.

Casing of a washable electric appliance

Blade part assembling structure for electric shaver

Growing community of inventors

Osaka, Japan

Hiroshi Kikuchi