| 摘要 |
<p>The invention relates to a box-type electric switchboard ( 20 ) which houses, in a removable way, at least a frame or a panel ( 30 ) for supporting the electric apparatuses. The body of the frame or panel ( 30 ) presents shaped seats ( 44, 45, 46, 47 ) which are suited to removably engage corresponding shaped protrusions ( 31, 32, 33, 34 ) which are provided on the inside of the box of the electric switchboard ( 20 ) for supporting the frame ( 30 ) in a vertical working position. Upon manual lifting and pulling out of the frame ( 30 ), the seats ( 44, 45, 46, 47 ) of this last frame disengage slidably the protrusion ( 31, 32, 33, 34 ) of the box and allow whether the guided swinging of the frame ( 30 ) toward an inclined position for inspection and maintenance purposes, or the possible subsequent removal of the frame ( 30 ) from the box of the electric switchboard ( 20 ). The frame ( 30 ) can be mounted or removed by means of easy operations which can be manually performed with one hand and without the use of tools. <IMAGE></p> |
