JP2011069484A5 - - Google Patents

Claims (4)

A nipple inserted into the hose;
An expansion / contraction sleeve that is provided so as to sandwich the hose with respect to the outer peripheral surface of the nipple and is formed to be elastically deformable in the radial direction with a material having excellent surface slipperiness;
A clamp provided outside the expansion / contraction sleeve and supported to be movable in the axial direction with respect to the expansion / contraction sleeve;
An annular mounting portion formed in a concave shape on the inner peripheral surface of the expansion / contraction sleeve is provided so as not to move in the axial direction and protrudes toward the outer peripheral surface of the hose, and is annular with a compressible deformation material. An elastic body to be formed;
It provided rotatably on the inner periphery of the clamp, and reduced in diameter to the enlarged contraction sleeve by mutual movement in the axial direction of the clamp and the scaling sleeve, the outer peripheral surface of the nipple and the inner peripheral surface of the hose A pressing sleeve having a sleeve diameter- reducing means to be closely attached to ,
The pressing sleeve is configured such that the sleeve diameter-reducing means contacts the outer peripheral surface of the expansion / contraction sleeve along the outer peripheral surface of the expansion / contraction sleeve by the mutual movement of the expansion / contraction sleeve and the fastening tool in the axial direction. By moving the pressing sleeves so as to overlap each other in the radial direction, the outer peripheral surface of the expansion / contraction sleeve is pressurized in the radial direction to be compressed and deformed,
Said elastic body, said by compression deformation in the radial direction of the expansion sleeve compressed and deformed in the radial direction between the outer peripheral surface of the hose, the said outer peripheral surface of said hose of said nipple at the repulsive force of their A hose coupling characterized by being pressed toward the outer peripheral surface. To said nipple, said clamp movably was screwed axially, wherein the inner circumferential surface of the pressing sleeve, wherein the sleeve diameter section, tapered pressurization outer peripheral surface in sliding contact with said scaling sleeve The hose coupling according to claim 1, wherein an inner peripheral surface is formed . Wherein an annular recess on an outer peripheral surface, said elastic member and opposed formed claim 1 or 2, wherein the hose coupling of the nipple.   The hose joint according to claim 1, 2 or 3, wherein a concave groove portion into which the deformed portion enters in accordance with compressive deformation of the elastic body is formed on the surface of the elastic body.