| 摘要 |
<p>A protective cover (1; 101; 201; 301) able to be associated to a work organ movable at least in one plane to follow the movements of the work organ maintaining covered and protected a corresponding zone of a machine whereof the work organ itself is a part, is provided with a series of cover elements (5, 6, 7, 8; 102, 103, 104, 105; 202, 203, 204, 205; 305, 306, 307, 308), mutually coupled in sliding fashion and in the form of a first cover element (5; 102; 202; 305), able to be fastened to said machine in correspondence with the zone to be protected, and with a plurality of cover elements (6, 7, 8; 103, 104, 203, 204, 205; 306, 307, 308), movable relative to each other and relative to the first cover element (5; 102; 202; 305) according to at least a direction (D; D1, D2) of movement of the work organ; each cover element (5, 6, 7, 8; 102, 103, 104, 105; 202, 203, 204, 205; 305, 306, 307, 308) presents a respective opening (5a, 6a, 7a, 8a; 102a, 103a, 104a, 105a; 202a, 203a, 204a, 205a; 305a, 306a, 307a, 308a) for the passage of the work organ and of said openings (5a, 6a, 7a, 8a; 102a, 103a, 104a, 105a; 202a, 203a, 204a, 205a; 305a, 306a, 307a, 308a) the opening (5a; 102a; 202a; 305a) of the first cover element (5; 102; 202; 305) defines an area to be covered by the remaining movable cover elements (6, 7, 8; 103, 104, 105; 203, 204, 205; 306, 307, 308); the protective cover (1; 101; 201; 301) further comprises a series of coupling means to couple in mutually sliding fashion the cover elements (5, 6, 7, 8; 102, 103, 104, 105; 202, 203, 204, 205; 305, 306, 307, 308) in such a way that the movable cover elements (6, 7, 8; 103, 104, 105; 203, 204, 205; 306, 307, 308), one of which can be fastened to the work organ, can follow the latter in its movements and simultaneously cover the zone to be protected; relative to the first cover element (5; 102; 202; 305), said coupling means (10; 110; 210; 310) are oriented towards said area to be protected and said movable cover elements (6, 7, 8; 103, 104, 105; 203, 204, 205; 306,307, 308) are oriented towards said work zone. <IMAGE> <IMAGE></p> |
