Abstract:
An improved package box comprising: a body having a first plate extended with a bendable fold from one side of the body, and a second plate extended with a bendable fold from the other side of the body opposed to the first plate. Flanges and corresponding indentations are formed at the interface between the first plate and the body, and between the second plate and the first plate. A plurality of containers is also formed between the second plate and the first plate, and between the second plate and the first plate by the combination of the two plates.

Description:
FIELD OF THE INVENTION  
       [0001]     The present invention relates to a package box and particularly to an improved package box for holding a plurality of products of different dimensions.  
       BACKGROUND OF THE INVENTION  
       [0002]     It is a common practice for many vendors to design and prepare different sizes of package boxes to hold finished products of different dimensions in a steady manner. The package boxes have to match the product type and size, such as small electronic elements (transformers, inductor, coils, etc.), medium size electronic elements (network adapter cards, temperature regulators, serial communication conversion modules, etc.), or large electronic elements. Refer to  FIG. 1  for a conventional package box for electronic elements. It has only one container  1  designed to match the size of an electronic element to be held. Hence package boxes of different sizes of containers have to be designed to hold different sizes of electronic elements. For vendors having dozens of products, they have to prepare dozens of different package boxes. This is not only costly, but also bad for the environment.  
         [0003]     Hence there is a requirement to hold more electronic elements in one package box to reduce usage of package boxes.  
         [0004]     One approach is to add a spacer layer in the container to increase the housing space.  FIG. 2  shows such an example. A spacer layer  5  is added in a package box  3  to form a partition to hold goods intimately. However, the spacer layer  5  is movably rested on the bottom of the goods held in the box and cannot hold the goods steadily.  
       SUMMARY OF THE INVENTION  
       [0005]     In view of the aforesaid problems, the primary object of the present invention is to provide an improved package box that can hold goods steadily even when subject to shaking or vibration.  
         [0006]     In one aspect, the improved package box according to the invention has a plurality of folding spacer layers formed in an integrated manner to hold goods of different sizes.  
         [0007]     In another aspect, the improved package goods according to the invention are adaptable to varying product dimensions to overcome the problem of producing one package box for one product.  
         [0008]     To achieve the foregoing object, the improved package box according to the invention includes a body, which has two bendable folds on two opposing sides, extended to form a first plate and a second plate. The first plate and the body are coupled to form a first interface, and the first plate and the second plate are coupled to form a second interface. On the first and second interfaces, flanges and corresponding indentations are formed, and containers are provided for holding goods of varying dimensions. The flanges and indentations are paired and coupled with each other such, that the first plate and the body, and the second plate and the first plate can be repeatedly opened to access the goods held in the containers as desired or closed securely to hold the goods steadily.  
         [0009]     The body also includes a third plate extended from a bendable fold of one remaining side of the body to form a third interface with the second plate. The second and third plates have respectively a flange and an indentation on the third interface that match each other and a container for holding goods of varying dimensions. The flange and indentation are paired and coupled with each other such, that the third plate and the second plate can be repeatedly opened to access the goods held in the container as desired or closed securely to hold the goods steadily.  
         [0010]     In addition, the body further includes a fourth plate extended from a bendable fold of another remaining side of the body to form a fourth interface with the third plate. The third and fourth plates have respectively a flange and an indentation on the fourth interface that match each other to form a container for holding goods of varying dimensions. The flange and indentation are paired and coupled with each other such, that the fourth plate and the third plate are repeatedly opened to access the goods held in the container as desired or closed securely to hold the goods steadily.  
         [0011]     The foregoing, as well as additional objects, features and advantages of the invention will be more readily apparent from the following detailed description, which proceeds with reference to the accompanying drawings. 
     
    
     BRIEF DESCRIPTION OF THE DRAWINGS  
       [0012]      FIG. 1  is a schematic view of a conventional package box for electronic elements.  
         [0013]      FIG. 2  is a schematic view of another conventional package box for electronic elements.  
         [0014]      FIGS. 3A and 3B  are a top view and a bottom view of an embodiment of the invention.  
         [0015]      FIGS. 4A and 4B  are a top view and a bottom view of another embodiment of the invention.  
         [0016]      FIGS. 5A and 5B  are a top view and a bottom view of yet another embodiment of the invention. 
     
    
     DESCRIPTION OF THE PREFERRED EMBODIMENTS  
       [0017]     Refer to  FIGS. 3A and 3B  for an embodiment of the invention.  
         [0018]     The package box according to the invention is formed in a single shell from a foamed material. It mainly includes a body  7 , a first plate  9  extended from one side of the body  7  in an integrated manner, and a second plate  11  extended from the opposite side of the body  7  in an integrated manner.  
         [0019]     The body  7  has an indentation  13  on the periphery directing downwards to form a container  15  within the boundary thereof for holding various types of electronic elements. The body  7  has a membrane type bendable fold  17  on one side connecting to the first plate  9 , which has a size matching the body  7  and can be flipped to cover the top side of the body  7 . The first plate  9  has a flange  19  formed on an interface covering the body  7 . The flange  19  matches the shape and depth of the indentation  13 , so that the flange  19  can be coupled with the indentation  13  to allow the first plate  9  to be opened or closed as desired.  
         [0020]     The first plate  9  further has an indentation  21  formed on the periphery to form at least one container  24  within the boundary thereof for holding various types of goods.  
         [0021]     The second plate  11  is connected to another side of the body  7  opposite to the first plate  9  through a bendable fold  23  and has a size matching the first plate  9 . Moreover, the second plate  11  has a flange  27  formed on an interface covering the first plate  9 . The flange  27  matches the shape and depth of the indentation  21  of the first plate  9  and may be flipped to couple with the indentation  21  to allow the second plate  11  to be opened or closed over the first plate  9  as desired.  
         [0022]     Within the boundary of the flange  27  of the second plate  11 , a recess  29  may be formed corresponding to the container  24  of the first plate  9  to increase the holding capacity of the container  24 .  
         [0023]     By means of the construction set forth above, when in use, the first plate  9  is flipped to couple with the body  7  to allow the container  15  formed between the first plate  9  and the body  7  to hold goods of the corresponding size. And the second plate  11  is flipped to couple with the first plate  9  to combine the container  24  and the recess  29  for holding an electronic element of the matching size. The flanges and the indentations can be wedged and coupled securely.  
         [0024]     Refer to  FIGS. 4A and 4B  for another embodiment of the invention. It differs from the one shown in  FIGS. 3A and 3B  by having an additional plate. Namely, the embodiment shown in  FIGS. 3A and 3B  has two plates, but the embodiment shown in  FIGS. 4A and 4B  has three plates.  
         [0025]     Referring to  FIGS. 4A and 4B , the second plate  11  shown in  FIGS. 3A and 3B  has an indentation  31  on the periphery to form at least one container  33  within the boundary thereof for holding goods.  
         [0026]     The body  7  has a membrane bendable fold  35  on another side to extend and form a third plate  37  matching the size of the second plate  11  for coupling and covering therewith. The third plate  37  has a flange  39  formed on an interface covering the second plate  11 . The flange  39  has a size and depth matching the indentation  31  of the second plate  11  for coupling with each other so that the third plate  37  may be opened or closed over the second plate  11  as desired.  
         [0027]     Within the boundary of the flange  39  of the third plate  37 , a recess  41  is formed corresponding to the container  33  of the second plate  11  to increase the holding capacity of the container  33 .  
         [0028]     By means of the construction set forth above, when in use, in addition to coupling the first plate  9  with the body  7  to allow the container  15  to hold goods of the corresponding size, and coupling the second plate  11  with the first plate  9  to combine the container  24  and the recess  29  to hold goods of the matching size, the third plate  37  can be coupled with the second plate  11  to combine the container  33  and the recess  41 , for holding goods of the matching size. The flanges and the indentations can be wedged and coupled securely.  
         [0029]     Refer to  FIGS. 5A and 5B  for yet another embodiment of the invention. It differs from the one shown in  FIGS. 4A and 4B  by having an additional plate. Namely, the embodiment shown in  FIGS. 4A and 4B  has three plates, but the embodiment shown in  FIGS. 5A and 5B  has fourth plates.  
         [0030]     Referring to  FIGS. 5A and 5B , the third plate  37  shown in  FIGS. 4A and 4B  has an indentation  43  on the periphery to form at least one container  45  within the boundary thereof for holding goods.  
         [0031]     The body  7  has a membrane bendable fold  47  on a remaining side to extend and form a fourth plate  49  matching the size of the third plate  37  for coupling and covering therewith. The fourth plate  49  has a flange  51  formed on an interface covering the third plate  37 . The flange  51  has a size and depth matching the indentation  43  for coupling with each other so that the fourth plate  49  can be opened or closed over the third plate  37  as desired.  
         [0032]     Within the boundary of the flange  51  of the fourth plate  49 , a recess  53  can be formed corresponding to the container  45  of the third plate  11  to increase the holding capacity of the container  45 .  
         [0033]     By means of the construction set forth above, when in use, in addition to coupling the first plate  9  with the body  7  to allow the container  15  to hold goods of the corresponding size, and coupling the second plate  11  with the first plate  9  to combine the container  24  and the recess  29  to hold goods of a matching size, and coupling the third plate  37  with the second plate  11  to combine the container  33  and the recess  41  to holding goods of the matching size, the fourth plate  49  can be coupled with the third plate  37  to combine the container  45  and the recess  53  to hold goods of the matching size. The flanges and the indentations can be wedged and coupled securely.  
         [0034]     In summary, the multi-layer package box according to the invention can be fabricated integrally in a simple production process. Each layer has a container of a varying dimension. Thus one package box can hold a plurality of products. Moreover, the matching flanges and indentations can be coupled securely without loosening off. The box can be opened or closed repeatedly without deformation. Goods can be held in the box securely without scattering away. This is convenient to use and provides significant improvements over the conventional package boxes.  
         [0035]     The goods mentioned above may be electronic elements of varying dimensions, such as transformers, inductors, coils, network adapter cards, temperature regulators, serial communication conversion modules, and the like.  
         [0036]     While the preferred embodiments of the invention have been set forth for the purpose of disclosure, modifications of the disclosed embodiments of the invention as well as other embodiments thereof may occur to those skilled in the art. Accordingly, the appended claims are intended to cover all embodiments, which do not depart from the spirit and scope of the invention.