Lid for waste collecting tray, has rib which is separated from rim, and stopper surface fixed to cooperate with rib of another lid to prevent relative movement of lids in direction when they are piled on outer side

摘要

The lid has inner and outer sides, and a rim (3) which is applied on a tub to close the tub. A rib projects from the inner side and is separated from the rim. A stopper surface is fixed to cooperate with a rib of another lid to prevent relative movement of the lids in a direction when they are piled on the outer side. A relief projects from the outer side to form the stopper surface for the rib.