Antitheft case

Abstract

An antitheft device is provided for a case for storing a commodity therein so as to protect the commodity from being removed from the case without permission. The case is composed of a box having an opening from which to insert and extract a commodity, and a lid which opens and closes the opening via appropriate hinges. A through hole is formed on a necessary position of peripheral walls which overlap with each other inside and outside the peripheral edges of the box and the lid, or which oppose each other, in such a manner that a key member can be inserted into or extracted from the through hole. In order to make use of the key member for protecting the case from being opened, it is possible to provide continuous convex-concave portions that are engaged with each other in necessary regions on a surface where an opposite side edge of the key member opposes the open edge of the through hole. It is also possible to provide a through hole on a necessary position on one of the peripheral walls overlapping with each other inside and outside of the peripheral edges of the box and the lid in such a manner that the key member can be inserted and extracted and can establish a latched relationship, whereas to provide a cut portion for avoiding collision with the key member so as to secure closing of the case on the other peripheral wall. A latch member is provided at an end of the key member, with the latch member establishing a latched relationship with the cut portion formed on either the box or the lid at a time of completion of insertion of the key member.

1 - 4 . (canceled)  
   
   
       5 . 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.    
   
   
       6 . 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.    
   
   
       7 . The case of  claim 5  further comprising: 
 bolt hooking portions which are dotted inside the side edges of said box and said lid that are opposite to the sides having said hinges, and which have bolt insertion portions arranged in series along the side edges of said case when it is in the closed condition; the through portion of said key member and the collision prevention portion being formed somewhere closer to said bolt hook portions on the peripheral walls between said hinges and said bolt hooking portions; and a bolt member formed on the key member, the bolt member passing through all said bolt insertion portions aligned to make a latched condition when said key member has been inserted.    
   
   
       8 . The case of  claim 6  further comprising: 
 bolt hooking portions which are dotted inside the side edges of said box and said lid that are opposite to the sides having said hinges, and which have bolt insertion portions arranged in series along the side edges of said case when it is in the closed condition; a passing collision prevention portion of said key member being formed somewhere closer to said bolt hook portions on the peripheral walls between said hinges and said bolt hooking portions; and a bolt member which passes through all said bolt insertion portions aligned to make a latched condition when said key member has been inserted.    
   
   
       9 . 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 
 bolt hooking portions are dotted inside the edges of the sides of said box and said lid that can be opened and closed, and which have bolt insertion portions aligned along the side edges of said case when said case is in the closed condition;    a through portion is formed to make a key member pass through it and be inserted in an extractable manner into the peripheral walls between said hinges and said side edges that can be opened and closed; and    a bolt member which passes through all said bolt insertion portions aligned to make a latched condition when said key member has been inserted.