Fastening mechanism for package device

Abstract

A fastening mechanism for a package device is provided, which includes a plurality of first protrusions stagger-arranged in two rows at an edge of a lid of the package device, wherein a gap is formed between the two rows of the first protrusions; a second protrusion formed on an edge of a body of the package device and corresponding in position to the gap; at least a projection formed on the edge of the body and substantially opposed in position to the second protrusion; and at least a recess formed on the edge of the lid and corresponding in position to the projection of the body. By coupling the lid to the body, the second protrusion is engaged with the gap between the first protrusions, and the projection of the body is engaged with the recess of the lid, so as to provide strong fastening effect for the package device.

What is claimed is:  
     
         1 . A fastening mechanism for a package device, the fastening mechanism, comprising: 
 a plurality of first protrusions stagger-arranged in two rows at a coupling edge of a lid of the package device, wherein a gap is formed between the two rows of the first protrusions, and the coupling edge of the lid is to be coupled to a corresponding coupling edge of a body of the package device for fastening the package device;    at least a second protrusion formed on the coupling edge of the body and corresponding in position to the gap between the first protrusions;    at least a projection formed on the coupling edge of the body and substantially opposed in position to the second protrusion; and    at least a recess formed on the coupling edge of the lid and substantially opposed in position to the first protrusions, wherein the recess corresponds in position to the projection of the body; 
 wherein by coupling the lid to the body, the second protrusion of the body is engaged with the gap formed between the first protrusions of the lid, and the projection of the body is engaged with the recess formed on the lid, so as to provide strong fastening effect for the package device.  
   
     
     
         2 . A fastening mechanism for a package device, the fastening mechanism comprising: 
 a plurality of first protrusions stagger-arranged in two rows at a coupling edge of a body of the package device, wherein a gap is formed between the two rows of the first protrusions, and the coupling edge of the body is to be coupled to a corresponding coupling edge of a lid of the package device for fastening the package device;    at least a second protrusion formed on the coupling edge of the lid and corresponding in position to the gap between the first protrusions;    at least a projection formed on the coupling edge of the body and substantially opposed in position to the second protrusion; and    at least a recess formed on the coupling edge of the lid and substantially opposed in position to the first protrusions, wherein the recess corresponds in position to the projection of the body; 
 wherein by coupling the lid to the body, the second protrusion of the lid is engaged with the gap formed between the first protrusions of the body, and the projection of the body is engaged with the recess formed on the lid, so as to provide strong fastening effect for the package device.  
   
     
     
         3 . The fastening mechanism of  claim 1 , further comprising: 
 a connecting portion for interconnecting the coupling edges of the body and the lid at positions substantially opposed to the first and second protrusions.    
     
     
         4 . The fastening mechanism of  claim 2 , further comprising: 
 a connecting portion for interconnecting the coupling edges of the body and the lid at positions substantially opposed to the first and second protrusions.    
     
     
         5 . The fastening mechanism of  claim 3 , wherein protruding height of the projection is equal to recessed depth of the recess, allowing the connecting portion to be dimensioned at least equally to the protruding height of the projection.  
     
     
         6 . The fastening mechanism of  claim 4 , wherein protruding height of the projection is equal to recessed depth of the recess, allowing the connecting portion to be dimensioned at least equally to the protruding height of the projection.  
     
     
         7 . The fastening mechanism of  claim 1 , wherein three first protrusions are formed on the lid in two rows, with two of the first protrusions being arrayed at one row, and the other one of the first protrusions being positioned at the other row.  
     
     
         8 . The fastening mechanism of  claim 2 , wherein three first protrusions are formed on the body in two rows, with two of the first protrusions being arrayed at one row, and the other one of the first protrusions being positioned at the other row.  
     
     
         9 . The fastening mechanism of  claim 1 , wherein the gap is dimensioned in correspondence with the second protrusion.  
     
     
         10 . The fastening mechanism of  claim 2 , wherein the gap is dimensioned in correspondence with the second protrusion.  
     
     
         11 . The fastening mechanism of  claim 1 , wherein the first and second protrusions are each shaped as a pyramid.  
     
     
         12 . The fastening mechanism of  claim 2 , wherein the first and second protrusions are each shaped as a pyramid.