| 摘要 |
<p>A hose coupling member (2) comprises a housing (50) with a through opening and with grooves (32a, 32b) oriented obliquely along the inner surface of the housing, a piston (20) arranged in the housing to seal said through opening, a shaft (40) attached to the piston, and an actuator (10) arranged inside housing (50). Upon relative rotation between housing (50) and the actuator shaft (40) will run in grooves (32a, 32b) and establish a linear relative movement between the housing (50) and the piston (20), said actuator (10) being arranged and shaped so that it acts directly upon the shaft (40). Rolls (42a, b, 44a, b) are preferably mounted on the shaft. <IMAGE></p> |
