Mechanism for automatically closing a storage container

A mechanism for closing a storage container such as a container divided to hold an assortment of parts, the storage container comprising a box-like part having a bottom, side walls and partition walls within said side walls, a cover hinged to said box-like part and displaceable between a closed position and an open position, first spring means for biasing said cover into the closed position, stop means for countering the action of said first spring means and retaining said cover in the open position, said stop means arranged to release said cover and return said cover to the closed position when the storage container is lifted or displaced from a support base, wherein the improvement comprises that said stop means includes an axially extending guide sleeve secured to and extending upwardly in the axial direction from said bottom of said box-like part, a stop pin positioned within and slidably displaceable in the axial direction of said guide sleeve between a first position where said cover is in the open position and a second position where said cover is in the closed position, second spring means for biasing said stop pin into the second position, an elongated supporting lever having a first end and a second end with said first end pivotally connected to said cover, said stop pin in the open position of said cover being engageable with the second end of said support lever when said bottom of said container is resting on a support base so that said cover remains in the open position and when said bottom of said container is displaced from the support base said second spring means biases said stop pin into said guide sleeve and out of engagement with the second end of said support lever.