Multi-layered hose
AssigneeTokai Rubber Industries, Ltd.
InventorMinoru Kawasaki
Life of this patent
Estimating the term…
Abstract
A multi-layered hose according to the present invention comprises a rubber outer layer and a resin or metal inner layer which is integrally formed at the inner periphery surface of the rubber outer layer. The thickness of the resin inner layer formed at the inner periphery surface of the edge portion is thinner than that of the resin inner layer formed at the inner periphery surface of a main portion of the hose. Therefore, when a mating pipe is inserted into the hose edge portion, the mating pipe is satisfactorily adhered to the inner surface of the hose edge portion, thereby obtaining excellent sealing.
Claims12
A multi-layered hose comprising
- a flexible rubber outer layer and a resin or metal inner layer located at an inner periphery surface of said outer layer,
- an edge portion of said flexible rubber outer layer for receiving a mating member in abutting relationship with said inner layer and in close engagement with said edge portion of said flexible rubber outer layer,
- said inner layer being located at said inner periphery surface of a main portion of said flexible rubber outer layer except at said edge portion so that when the mating member is inserted into said edge portion of said flexible rubber outer layer, said edge portion closely engages and seals with an outer periphery of the mating member to allow fluid passing through the mating member to pass directly to said inner layer while avoiding contact with said outer layer.
A multi-layered hose comprising
- a flexible rubber outer layer and a resin or metal inner layer integrally formed at an inner periphery surface of said flexible rubber outer layer,
- an edge portion of said flexible rubber outer layer for receiving a mating member in abutting relationship with said inner layer and in close engagement with said edge portion of said flexible rubber outer layer,
- said inner layer being located at said inner periphery surface of a main portion of said flexible rubber outer layer and at a part of said inner periphery surface of an edge portion near said main portion of said flexible rubber outer layer so that when the mating member is inserted into said edge portion of said flexible rubber outer layer, said edge portion closely engages and seals with an outer periphery of the mating member to allow fluid passing through the mating member to pass directly to said inner layer while avoiding contact with said outer layer.
A multi-layered hose comprising
- a rubber outer layer and a resin or metal inner layer integrally formed at an inner periphery surface of said outer layer, and having an edge portion into which a mating member is inserted, said inner layer being located at the inner periphery surface of a main portion of said hose except at said edge portion,
- a ring-shaped groove which encircles the inner periphery surface is disposed between a main portion and an edge portion of said outer layer, and a tip portion of said mating member has a projected portion on its outer periphery surface, and said projected portion is engaged with said groove, and an edge portion of said inner layer extends to a bottom of said ring-shaped groove.
Dependencies are inferred from the claim text.