Suction and delivery hose

摘要

The invention relates to a suction and delivery hose having a core and cover of rubber or rubber-like material, there being on the hose core at predetermined intervals steel rings or steel wire coils which are assembled with rubber profiles, and the hose core and the rings, surrounded by rubber profiles, being covered by a reinforcing strengthener. The essential feature of this suction and delivery hose is that the reinforcing strengthener consists of straight-running, fully tensioned filaments which are wound up at a certain strengthening angle in such a way that they are in continuous contact with the hose core and the assembled rings or wire coils.