| 摘要 |
The invention provides a lid (1) for a vessel associated with an electrically operated kitchen appliance, such as a blender or a kettle. The lid is formed with a recess (2) which accommodates an actuator (3) capable of rotational movement within the recess, and further comprises a plurality of arm members (14), each extending radially from the recess towards an edge of the lid. The actuator bears a plurality of outstanding lugs (7) each associated with, and capable of engaging, a respective arm member (14), and the arrangement is such that, upon rotation of the actuator (3) into a predetermined angular position, the lugs (7) engage inner ends of the respective arm members (14) and urge them radially outwards to promote interaction of their outer ends with the vessel. <??>The arrangement is preferably such as to constrain the arm members (14) against motion in directions other than the radial direction and, in a preferred embodiment, the actuator comprises a receptacle (3) supported by means of a bayonet latching arrangement which provides for first, second and third stable rotational positions of the receptacle (3) relative to the container; the receptacle (3) being removable from the lid (1) in the first position, latched to the lid (1) in the second position and urging the arm members radially outwards in the third position to tighten a seal between the lid and the vessel. <IMAGE>
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