| 摘要 |
A ferrule for connecting a hose of the reinforced type to a male stem of a hose coupling, the ferrule (10) being in the form of a sleeve (12) having an inside surface from which a plutality of longitudinally extending ribs (16) extend, the ferrule (10) being of the type which is reducible in diameter such as by crimping or swaging and wherein at one end of the ferrule which is attachable to a collar (40) on the male stem (41), portions of the ribs are arranged to extend behind the collar (40) to attach the ferrule to the male stem. In one construction the ribs (16) are deformable by the stem collar (40) as a result of the crimping or swaging operation to leave teeth formed from the ribs, and in an alternative construction a portion of the ribs is removed before fitting of the ferrule to leave a serrated collar (32) formed from the end portions of the ribs (16). The ribs (16) may have a variety of cross-sections and the ferrule may be made of steel, aluminium, magnesium, brass or plastics by an extrusion operation. The invention also extends to a hose coupling incorporating a ferrule as described above and a hose assembly having a hose coupling and ferrule attached to at least one end of the hose. |
