| 摘要 |
A hose assembly, a hose coupling and a part therefor and methods of making t he same are provided, the hose assembly (21A) having a tubular insert portion (24A) of a hose coupling (20A) inserted into one en d (23A) of a hose (22A), the external peripheral surface (34A) of the insert portion (24A) having a plurality of spaced apart annular ridge s (52, 53, 56) and having a plurality of spaced apart an nular grooves (50, 51) therein that are separated from each other by the annular r idges (52, 53, 56) so that the insert portion (24A) has medial grooves (50) intermediate opposite end grooves (51) thereof, the end grooves (51) being narrower than the medial grooves (50). |
