Patent ID: 9476529
Filing Date: 2016-10-25
CPC Classification: F16L

Claim Text:
1. A hose nipple ( 4 ) for a hose connecting piece ( 3 ) of a water supply system, said hose nipple comprising a sleeve-shaped nipple base body ( 5 ) which has an outlet end ( 11 ) and a hose end ( 12 ), and on an inside accommodates a through-flow channel ( 10 ) which connects the outlet end ( 11 ) and the hose end ( 12 ), at least three holding ribs ( 6 ), which extend in each case around the nipple base body ( 5 ) at least in portions and are spaced apart axially from one another by an axial spacing ( 21 ), are integrally formed on an outside of the nipple base body ( 5 ), the nipple base body is tapered with an outer diameter which reduces toward the hose end 12 , and the axial spacings ( 21 ) between the holding ribs ( 6 ) on the nipple base body ( 5 ) successively decrease toward the hose end ( 12 ), and the holding ribs ( 6 ) include rib crests ( 18 ) which protrude from the nipple base body ( 5 ) and describe an imaginary sleeve-shaped or hose-shaped enveloping surface, a diameter of which decreases toward the hose end ( 12 ), wherein in an axial section of the hose nipple ( 4 ), each of the holding ribs ( 6 ) has a profile with a front flank ( 15 ) which faces the hose end ( 12 ) and a rear flank ( 16 ) which faces the outlet end ( 11 ), the rib crest ( 18 ) of the holding rib ( 6 ) is realized between the front flank ( 15 ) and the rear flank ( 16 ), the front flank ( 15 ) has an S-shaped development in profile and merges into the nipple base body ( 5 ) at a first transition radius (R 1 ), and the rear flank ( 16 ) is inclined in relation to a vertical thereby forming an obtuse angle on an outer face of the nipple base body ( 5 ) and at a flank bottom merges into the nipple base body ( 5 ) at a second transition radius (R 3 ) and wherein the first transition radius (R 1 ) is greater than the second transition radius (R 3 ).