Patent ID: 6527303
Filing Date: 2003-03-04
Classification: B60T,B62L

Abstract:
A hydraulic hose assembly comprising:a first housing portion with an internal passage that includes first internal threads adjacent its free end and a first conical abutment surface formed inwardly from the first internal threads; a flexible hose having a first end, a second end and an interior passage extending between said first and second ends of said flexible hose; a first rigid tubular insert located in said interior passage adjacent said first end of said flexible hose; a first connecting fastener having first external threads threadedly coupled to said first internal threads of said first housing portion, a second conical abutment surface formed adjacent its free end, and a longitudinal bore with a portion of said first end of said flexible hose disposed therein; and a first tubular bushing disposed over said flexible hose at said first rigid tubular insert, said first tubular bushing having inner and outer surfaces extending between first and second axial ends of said first tubular bushing, said outer surface of said first tubular bushing including a first inclined section decreasing in radial width as said first inclined section approaches said first axial end of said first tubular bushing, a second inclined section decreasing in radial width as said second inclined section approaches said second axial end of said first tubular bushing, and an intermediate section located between said first and second inclined sections, said intermediate section having an annular recess, said inner surface being circumferentially continuous along portions of said inner surface that are radially opposed to said first and second inclined sections of said outer surface to contact said flexible hose to form a pair of annular seals therebetween, said first conical abutment surface of said first housing portion contacting said first inclined section at a first contact point spaced from said first axial end of said first tubular bushing such that a portion of said first inclined section located between said first contact point and said first axial end of said first tubular bushing is free of contact with said first conical abutment surface of said first housing portion, and said second conical abutment surface of said first connecting fastener contacting said second inclined section at a second contact point spaced from said second axial end of said first tubular bushing such that a portion of said second inclined section located between said second contact point and said second axial end of said first tubular bushing is free of contact with said second conical abutment surface of said first connecting fastener.