Fitting for hose pipes

Claim 1

An assembly of a hose and fitting, comprising a flexible rubber hose having reinforcing layers completely embedded therewithin and spaced radially from one another such that the flexible hose includes a rubber outer covering layer and at least one rubber internal layer disposed between adjacent reinforcing layers, and a hose fitting attached to one end of the hose, said fitting defining a flow path having a longitudinal axis and including a metal nipple to which each separate reinforcing layer is fixedly joined and which is connected in a firm, fluid-tight manner with the internal and covering rubber layers of the hose, the nipple including a plurality of concentric shells which are firmly connected with one another and the nipple, each of said shells including annular portions extending parallel to said longitudinal axis and away from said nipple, said shells being spaced in a radial direction at a distance from one another so that radial clearances are obtained between adjoining shells, the ends of the reinforcing layers covered with rubber at the nipple extending into the radial clearances between the annular portions of the shells with each reinforcing layer being joined to the surface of at least one annular portion, and each of the reinforcing layers joined to the surface of at least one annular portion being fixed to said surface by vulcanization of the rubber, said firm and fluid-tight joining constituting connection means for securing said one end of the flexible hose to said nipple so that tension is generally equally distributed to said radially separated reinforcing layers along areas in which said reinforcing layers are joined to said nipple.