US Patent 9261213 Hose coupling

A hose coupling (1) is provided, having a sleeve-like configuration and at least one coupling end with a connector (3), at the at least one coupling end, with a retaining profile provided on the outer circumference of at least one connector sub-region, it being possible for a hose end (4) of a flexible hose (2) to be pushed onto said at least one profiled coupling end. The retaining profile is formed by at least one retaining groove (5) which is provided on the outer circumference of the connector (3) and has longitudinal groove sides (8, 9) oriented in the circumferential direction of the connector and narrow groove sides (6, 7) oriented in the longitudinal direction of the connector.