Patent Publication Number: US-2013233754-A1

Title: Packaging case

Description:
BACKGROUND OF THE INVENTION 
     1. Field of the Invention 
     The present invention generally relates to a packaging case, and more particularly to a packaging case having a buffering function. 
     2. The Related Art 
     Referring to  FIG. 1  and  FIG. 2 , a conventional packaging case  4  adapted for packing a rectangular product  3  therein has a rectangular first cover  41  and a rectangular second cover  42 . A middle of a rear of the first cover  41  defines a first opening (not shown), and a middle of a front of the second cover  42  defines a second opening (not shown). A plurality of buffering ribs  43  protrude outward from a periphery of the first cover  41  and a periphery of the second cover  42 . A plurality of buffering blocks  44  protrude outward from a front surface of the first cover  41  and a rear surface of the second cover  42 . The buffering ribs  43  and the buffering blocks  44  are integrally molded with the first cover  41  and the second cover  42 . One end of the product  3  is received in the first opening of the first cover  41  and the other end of the product  3  is received in the second opening of the second cover  42  to pack the product  3  between the first cover  41  and the second cover  42 . 
     However, in order to protect the product  3 , the packaging case  4  is usually designed with a thicker thickness so that results in a higher material cost. Moreover, when the packaging case  4  with the product  3  packed therein is struck by an external force, a periphery junction between each of the buffering ribs  43  and the first cover  41  or the second cover  42 , and a periphery junction between each of the buffering blocks  44  and the first cover  41  or the second cover  42  are apt to be cracked that seriously affects satisfactory degrees for customers. 
     SUMMARY OF THE INVENTION 
     An object of the present invention is to provide a packaging case adapted for packing an article therein includes a fastening shell and a plurality of buffering elements. Each wall of the fastening shell defines at least one insertion hole. The buffering elements are dismountably inserted into the insertion holes of the fastening shell with tops thereof projecting out of the insertion holes. 
     As described above, the fastening shell and the buffering elements are designed separately, so the buffering elements fully afford an external force struck on the buffering elements for effectively preventing cracks being caused between each of the buffering elements and the fastening shell. Accordingly, the fastening shell is designed with a thinner thickness to lower a material cost and a transportation cost. Furthermore, the buffering elements assembled to the fastening shell are changeable to make the buffering elements dismountably inserted into the insertion holes of the fastening shell properly and simply. As a result, a better buffering function of the packaging case is realized to improve a packing quality of the packaging case so as to assure satisfactory degrees of customers. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The present invention will be apparent to those skilled in the art by reading the following description, with reference to the attached drawings, in which: 
         FIG. 1  is a perspective view of a packaging case in prior art, wherein the packaging case packs a product therein; 
         FIG. 2  is a front sectional view of the packaging case packing the product therein of  FIG. 1 ; 
         FIG. 3  is a perspective view of a packaging case in accordance with the present invention, wherein the packaging case packs an article therein; 
         FIG. 4  is a sectional view of the packaging case packing the article therein of  FIG. 3 ; and 
         FIG. 5  is a partially sectional view of the packaging case packing the article therein of  FIG. 3 . 
     
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT 
     With reference to  FIG. 3  and  FIG. 4 , a packaging case  1  in accordance with the present invention is shown. The packaging case  1  adapted for packing a cubic article  2  includes a fastening shell  10  and a plurality of buffering elements  20 . 
     Referring to  FIG. 3 ,  FIG. 4  and  FIG. 5 , the fastening shell  10  is divided into four shells  11 . Each shell  11  has a rectangular first wall  111 , a rectangular second wall  112  perpendicular to the first wall  111 , and two square third walls  113  connecting with the first wall  111  and the second wall  112 . A receiving space (not shown) is accordingly formed among the first wall  111 , the second wall  112  and the two third walls  113 . Each of the first wall  111 , the second wall  112  and the two third walls  113  defines at least one insertion hole  101 . 
     Referring to  FIG. 5 , the fastening shell  10  is preferably made of a hollow sandwich material so as to lower a material cost and make the fastening shell  10  lighter for facilitating the fastening shell  10  being carried. 
     Referring to  FIG. 3 ,  FIG. 4  and  FIG. 5  again, each of the buffering elements  20  has a rectangular insertion portion  21  located at a bottom thereof, and a substantial frustum-shaped buffering head  22  forming on a top of the insertion portion  21 . The insertion portion  21  is matched with the insertion hole  101 . The buffering head  22  is narrower than the insertion portion  21 . 
     Referring to  FIG. 3 ,  FIG. 4  and  FIG. 5  once again, in use, two top corners of the article  2  and one top edge of the article  2  connecting between the two corners of the article  2  are received in the receiving space (not shown) of one of the shells  11 , the other two top corners of the article  2  and another top edge of the article  2  connecting between the other two corners of the article  2  are received in the receiving space (not shown) of another shell  11 . In the same way, four bottom corners of the article  2 , and two bottom edges of the article  2  opposite to the two top edges of the article  2  described above are received in the receiving spaces (not shown) of the rest two shells  11 . The insertion portions  21  are directly inserted into the insertion holes  101  of the fastening shell  10  without using any adhesives to pack the article  2  in the packaging case  1 . The buffering heads  22  of the buffering elements  20  project out of the insertion holes  101 . When an external force is struck on the buffering heads  22  of the buffering elements  20 , the external force is fully afforded by the buffering elements  20  on account of the fastening shell  10  and the buffering elements  20  being designed separately for effectively preventing cracks being caused between each of the buffering elements  20  and the fastening shell  10 . Accordingly, the fastening shell  10  is designed with a thinner thickness to lower the material cost and a transportation cost. Furthermore, the buffering elements  20  assembled to the fastening shell  10  are changeable according to the manufacturing material and weight of the article  2  to make the buffering elements  20  dismountably inserted into the insertion holes  101  of the fastening shell  10  properly and simply, and the fastening shell  10  needn&#39;t be changed simultaneously. 
     As described above, the fastening shell  10  and the buffering elements  20  are designed separately, so the buffering elements  20  fully afford the external force struck on the buffering heads  22  of the buffering elements  20  for effectively preventing the cracks being caused between each of the buffering elements  20  and the fastening shell  10 . Accordingly, the fastening shell  10  is designed with the thinner thickness to lower the material cost and the transportation cost. Furthermore, the buffering elements  20  assembled to the fastening shell  10  are changeable according to the manufacturing material and the weight of the article  2  to make the buffering elements  20  dismountably inserted into the insertion holes  101  of the fastening shell  10  properly and simply. As a result, a better buffering function of the packaging case  1  is realized to improve a packing quality of the packaging case  1  so as to assure satisfactory degrees of customers.