High-pressure resistant vibration absorbing hose and manufacturing method of the same

A high-pressure resistant vibration absorbing hose having a bursting pressure equal to or more than 5 MPa, comprising:

• a hose main body having an inner surface side layer, a reinforcing layer formed by braiding or spirally winding a reinforcing filament member at a high braiding density equal to or more than 50% and arranged in an outer side of said inner surface side layer, and an outer surface layer arranged in an outer side of said reinforcing layer and corresponding to a cover layer, the hose main body being provided with a caulked portion on an axial end portion, and a main portion;
• a joint device having a rigid insert pipe inserted in said caulked portion, and a sleeve-like socket metal fitting fitted to an outer surface of said caulked portion, the joint device being fixed to said caulked portion, by caulking said socket metal fitting fitted to the outer periphery of the caulked portion in a contracting direction;
• said caulked portion of said axial end portion being formed in an expanded shape with respect to said main portion in a shape before caulking and fixing said joint device, and a braiding or winding angle of said reinforcing filament member in said reinforcing layer being set to 55 degree±2 degree equivalently in both of said main portion and said caulked portion formed in said expanded shape;
• and
• a thickness of said inner surface side layer being equal to or more than 1 mm in the shape before caulking and fixing said joint device .