Tray having improved rims, furniture including one such tray, and corresponding tool trolley

1. Tray ( 6 ) of a furniture element ( 2 ), comprising an upper surface ( 6 a ) intended for the placing of an object, the surface forming a general plane, at least one rim ( 60 , 80 ) movable between a rest position in which the or each rim ( 60 , 80 ) is arranged so that it projects relative to the general plane of the upper surface ( 6 a ) and a working position in which the or each rim ( 60 , 80 ) is aligned relative to the general plane of the upper surface ( 6 a ), characterized in that the or each rim ( 60 , 80 ) retracts automatically under the action of a load (F) which biases the or each rim ( 60 , 80 ) from its rest position towards its working position, the load (F) being placed on the upper surface ( 6 a ) of the tray ( 6 ) directly above the or each rim ( 60 , 80 ) and that it has a substantially rectangular shape and comprises two retractable rims ( 60 , 80 ) arranged parallel to one another in the direction of the small dimension of the tray ( 6 ) and further comprises a surface ( 40 ), made of wood, covered with a metal sheet ( 44 ), and in that said surface is arranged between two slotted end pieces ( 8 , 9 ), each of the two rims ( 60 , 80 ) being arranged in the slot ( 58 ) of a corresponding end piece ( 8 , 9 ).

2. Tray according to claim 1 , characterized in that at least one of the end pieces ( 8 , 9 ) comprises at least one recess ( 56 ) intended for the storage of objects.