Tokai Rubber Industries, Ltd.

Masashi Kondo

Shinobu Kanbe

Hiroyoshi Mori

Tomohide Ito

Kazuhiro Kato

Motohide Nishimura

Yasuo Yamamoto

Koyo Fujimori

A fuel hose comprising an inner layer formed of FKM and an outer layer formed of an NBR.PVC blend that are adhered well by vulcanization and having an excellent resistance to gasoline and an excellent weatherability, wherein the polymerization degree and the amount of PVC in the blend are specified in fixed ranges a carboxylic acid 1,8-diazabicyclo(5,4,0)-undecene-7 salt is incorporated in the NBR.PVC blend, and a polyol-type vulcanizing agent is incorporated in the FKM.

Fuel hose

A heat-resistant hose for transport of high temperature fluid, wherein the inner surface of the hose in contact with said fluid comprises a material containing blended rubber of fluorinated rubber (FKM) and acrylic rubber (ACM). In particular, a heat-resistant hose for transport of fluid containing high temperature oil which comprises an inner tubular body composed of one or more layers at least the most inner layer of which consists of blended rubber of FKM and ACM, fiber reinforcements wound around the outer surface of said inner tubular body the thread extracting force of which the fiber reinforcements is not less than 1N/mm, and an outer tubular body composed of one or more layers bonded on the surface of said fiber reinforcements, said most inner layer preferably containing carbon black having the value (A.times.B) of not more than 3500 obtained by multiplying the value A of nitrogen adsorption specific surface area (m.sup.2 /g) by the value B (PHR) of part by weight of amounts of carbon black used is added to the blended rubber.

Heat-resistant hose

A connector includes a tube-shaped male member, a female member, an engagement member, and a checking member. The male member has a ring-shaped convexity. The female member has a substantially cylinder-shaped housing. The housing has a pair of widows having a peripheral end and a peripheral edge. The checking member has a letter C-shaped portion, and a pair of engagement convexities. The engagement convexities has a first engaging portion, a leading-end contacting portion, and an inclined second engaging portion. The first engaging portion engages with the peripheral end of the windows of the housing so as to inhibit the checking member from coming off from the housing in a direction perpendicular to an axial direction before the male member is connected with the female member. The leading-end contacting portion is pressed by the ring-shaped convexity to move outwardly in a radial direction so as to diametrically enlarge the letter C-shaped portion when the fitting of the male member is completed. The inclined second engaging portion engages with the peripheral edge of the windows of the housing so as to inhibit the checking member from coming off from the housing in a direction perpendicular to an axial direction by an elastic restoring force of the letter C-shaped portion when the fitting of the male member is completed.

Connector

Growing community of inventors

Komaki, Japan

Masashi Kondo