| 摘要 |
<p>In a screw and saw-teeth connection between a hub of a hose winding drum and a handle for rotating the drum, the hub (106), starting from a corresponding flange (104) of the hose winding drum (103), has an externally grooved internal portion (113), an intermediate saw-toothed portion (114), an externally threaded end portion (109). The handle (110) consists of a connecting lever (116) between one end (117) provided with a handgrip (118) for rotating the drum (103) and one end (115) shaped like a ring nut with a threaded portion (119) suitable for being screwed on the end portion (109) and a saw-toothed portion (120) that can engage with the intermediate saw-toothed portion (114) for clamping the handle (110) on the hub (106). <IMAGE></p> |
