Container having box and sleeve with locking mechanism

A container for consumer goods, the container comprising:

• an outer sleeve comprising an outer sleeve front wall, an outer sleeve back wall, first and second opposed outer sleeve side walls, an outer sleeve top wall, and a first open end;
• and
• an inner box comprising:
• a box portion comprising a box portion bottom wall, a box portion front wall, a box portion back wall, and first and second opposed box portion side walls;
• and a lid portion hingedly attached to the box portion along a hinge line, the lid portion comprising a lid portion top wall, a lid portion front wall, a lid portion back wall, and first and second opposed lid portion side walls,
• the inner box being disposed within the outer sleeve and configured to be slidable with respect to the outer sleeve between:
• a first position, in which the interior of the inner box cannot be accessed by a user;
• and
• a second position, in which the interior of the inner box can be accessed by a user,
• wherein sliding of the inner box from the first position to the second position involves at least part of the inner box passing through the outer sleeve opening;
• wherein the inner box further comprises first and second inner box side flaps, each inner box side flap being configured to overlie a portion of the outer surface of a respective box portion side wall or lid portion side wall;
• wherein, when the inner box is in the first position in the outer sleeve, an edge of each inner box side flap is configured to engage with a corresponding engaging element on the inner surface of a respective outer sleeve side wall, to form a locking mechanism for preventing the inner box from sliding from the first position to the second position
• wherein each of the first and second inner box side flaps is directly connected to a first and second edge, respectively, of the box portion bottom wall by a first and second fold line, respectively;
• or
• wherein each of the first and second inner box side flaps is directly connected to a first and second edge, respectively, of the lid portion top wall by a third and fourth fold line, respectively.