Antitheft case

An antitheft case comprising a box having an opening from which to insert and extract a commodity, and a lid which opens and closes said opening via appropriate hinges, wherein

• convex-concave portions are formed in such a manner as to be continuously engaged with each other either on the surface where the peripheral walls are butted with each other in an exposed manner while overlapping inside and outside at the peripheral edges of said box and said lid, or on the open surface of the outer peripheral wall in predetermined regions on the surface of either one of said box and said lid.

An antitheft case comprising a box having an opening from which to insert and extract a commodity, and a lid which opens and closes said opening via appropriate hinges, wherein

• holding-down means are formed on predetermined regions on the peripheral walls which overlap with each other inside and outside of said box and said lid of said antitheft case, said holding-down means preventing the open edge of the outer peripheral wall from being bent outwards when an external pressure is applied onto the surface of said antitheft case from at least one direction.

An antitheft case comprising a box having an opening from which to insert and extract a commodity, and a lid which opens and closes said opening via appropriate hinges, wherein

• convex-concave portions are formed on the necessary regions on at lease one open edge of the peripheral walls which overlap inside and outside of said box and said lid of said antitheft case, said convex-concave portions being designed to cause pain in a finger when someone tries to pry them open.

A case comprising a box having an opening from which to insert and extract a commodity, and a lid which opens and closes said opening via appropriate hinges, wherein

• a through portion is formed on one of necessary positions which overlap with each other inside and outside the peripheral edges of said box and said lid, said through portion making a key member pass through it in an extractable manner and establish a latch relation, and a collision prevention portion is formed on the other necessary position in order to secure the closing of said case by avoiding the collision with said key member;
• and
• a latch means is provided at the end of said key member with which to establish a latch relation so as to prevent the opening of said case at the time of the completion of the insertion of said key member.

A case comprising a box having an opening from which to insert and extract a commodity, and a lid which opens and closes said opening via appropriate hinges, wherein

• a pair of collision prevention portions are formed on a necessary position on the peripheral walls which overlap with each other or oppose each other inside and outside the peripheral edges of said box and said lid, said pair of collision prevention portions facing inward from the open edge of said peripheral walls, and
• a latch means is provided at the end of said key member with which to establish a latch relation so as to allow said key member to be inserted between said collision prevention portions in a detectable manner and to prevent the opening of said case at the time of the completion of the insertion of said key member.