| 摘要 |
The sleeve (1) has an envelope (2) made of flexible material to contain a functional block of a built-in electrical appliance. An opening zone (3) receives a retaining unit traversing the functional block, where thickness of the opening zone is lower than general thickness of the envelope. The opening zone is adapted to be attached with the retaining unit, so that rotational movement of the retaining unit engaged in the opening zone causes deformation of the envelope, where reinforcement forms a rigid zone around the opening zone. An independent claim is also included for a built-in electrical appliance. |
