SINGLE INTEGRAL RADIALLY CRUMPLED SNAP RING, AND ITS MANUFACTURING METHOD Russian patent published in 2013 - IPC F16L33/20 

FIELD: machine building.

SUBSTANCE: hose end nozzle includes a single integral bar having an external serrated end section and an external connection section of the snap ring. Single integral radially crumpled snap ring is located on the bar; at that, crumpled section of the coupling is located about the serrated end section; deformable attachment section is located around the connection section of the crumpled ring, and a torque transfer section is formed between the coupling section and the attachment section. Torque transfer section can be strengthened by means of strengthening, sharpening of angles, etc. The coupling section can retain a C-shaped insert, one or more spiral inserts, or multiple composed inserts for capture of the hose end, and the coupling section can form an annular projection. The seal is located in the coupling section between the insert(s) and the annular projection. In some versions of C-shaped insert design, teeth are formed on inner circle and corresponding recessed cutouts are formed on outer circle.

EFFECT: invention improves the connection reliability.

17 cl, 13 dwg