Patent ID: 7832357

Claim:
An animal litter box comprising: an evacuation container of which an upper surface has an opening; and a hood disposed above the evacuation container so as to cover the opening, the hood having a fixed hood disposed on one end of the evacuation container, a movable hood disposed on the other end of the evacuation container, and a pair of connecting portions which connect the movable hood to be moved rotatably, wherein the movable hood is configured to be moved rotatably outside the fixed hood in the state that an end edge on at least the one end of the movable hood is proximal to the fixed hood with maintaining a prescribed distance, and includes a convex restricting portion which prevents a distance between an end edge on at least the one end of the movable hood and the fixed hood from being less than the prescribed distance, wherein the convex restricting portion is composed of an inwardly protruding portion which is formed on an inner surface of the end edge on at least the one end of the movable hood; and wherein the fixed hood includes a concave guide groove which extends from one side edge to another side edge of the fixed hood, on an outer upper surface thereof, to guide the moving of the protruding portion when the movable hood is moved from a closed state to an open state.