Abstract:
A packaging carton is disclosed, suitable for packaging an electronic product, such as a peripheral product, a mobile phone, or a spare part. The packing carton is formed by folding a paper material and is one piece, and is fabricated by linking two clip slots. Furthermore, the packaging carton comprises two hollow buffer structures beside two sides of a storage chamber and two upper holding pieces adjacent to both sides of the storage chamber to protect an object packaged in the packaging carton.

Description:
FIELD OF THE INVENTION  
       [0001]     The present invention relates to a packaging carton, and more particularly, to a packaging carton fabricated by a buffer method of linking two clip slots.  
       BACKGROUND OF THE INVENTION  
       [0002]     Inside most of the daily-used packaging cartons, protective packaging structures exist to support and protect the objects disposed in the packaging cartons, thereby avoiding damage resulted from external impact. Inside the commonly-used packaging cartons, the frequently-used materials forming the protective packaging structures are, for example, plastic, paper, and metal. Of these, paper is quite popularly selected for manufacturing the packaging structures because it is easily processed, has a low technical threshold, is cheap, and is easily printed on.  
         [0003]     In addition, based on the principle of environmental protection, the packaging structures of paper can be produced from reprocessed paper pulp and be recycled. Moreover, unlike other materials, paper materials do not need to bear the cost of recycling. Therefore, the utilization of paper materials can reduce the impact to ecological environment and have the advantage of low cost.  
         [0004]     For highly precise and fairly fragile electrical components, since they are quite easily damaged during transportation by external interference, such as water, dust, impact and so on, the requirements for the packaging structure are stricter. To reduce the damage to objects during transportation, capabilities, such as waterproof, dust-proof, and shockproof, are built into the protective packaging structure. Currently, a popular method is to insert lots of paper or plastic lining materials, foamed plastic fillers, or foamed cushioning pads into a packaging carton, so as to prevent damage caused by shaking and collision with walls of the packaging carton during transportation to protect the objects therein. Materials of plastic lining materials, foamed plastic fillers and foamed cushioning pads generally are expanded polyethylene (EPE) or polyvinyl chloride (PVC).  
         [0005]     Nevertheless, with the promoting of the environmental protection awakening, the use of plastic lining materials, foamed plastic fillers or foamed cushioning pads impacts the environment ecology and cannot fit the environmental protection policy of each country.  
         [0006]     The fabrication technique of paper packaging structures is by directly hot-pressing paper pulp into a mold. Another method is to cut cardboard into various planks by first sampling and drawing parallel lines according to the size of the required object; and then folding and pasting the planks according to the required style to fabricate the inner spacer required.  
         [0007]     However, the producing method of packaging structures by directly hot-pressing paper pulp into a mold requires development and fabrication of the mold, so that the cost is increased. In addition, the packaging structure made by folding and pasting paper sheets has the drawbacks of poor impact-resistibility, and takes more time to produce.  
       SUMMARY OF THE INVENTION  
       [0008]     An objective of the present invention is to provide a packaging carton formed by folding a paper material and suitable for packing an electronic product, such as peripheral products of a notebook, a mobile phone, or spare parts, and thus reduces the environmental burden and meets the requirements of environmental protection.  
         [0009]     Another objective of the present invention is to provide a packaging carton formed by linking two clip slots, and thus simplifying consumables and reducing the cost. Furthermore, the saved cost can be calculated according to the containing area of a product.  
         [0010]     Still another objective of the present invention is to provide a packaging carton formed by folding a paper material and in one piece. Therefore, the packaging carton is formed easily, thereby reducing production cost.  
         [0011]     According to the aforementioned objectives of the present invention, the present invention provides a packaging carton comprising: a bottom plate, wherein the bottom plate comprises a first embedded slot and a second embedded slot; a first side plate fixedly connected to a first side of the bottom plate, wherein a front edge of the first side plate includes a first front protrusion, and the first side plate comprises: a first clip piece located on a side of the first side plate, wherein the first clip piece comprises a lower embedded slot; and a first fixed piece located on another side of the first side plate opposite the side where the first clip piece located; a second side plate fixedly connected to a second side of the bottom plate opposite the first side plate, wherein a front edge of the second side plate includes a second front protrusion, and the second side plate comprises: a second clip piece located on a side of the second side plate, wherein the second clip piece comprises an upper embedded slot; and a second fixed piece located on another side of the second side plate opposite the side where the second clip piece located, wherein, when the first side plate and the second side plate are folded upwardly and inwardly, the first side plate and the second side plate form a first hollow buffer structure and a second hollow buffer structure, the first front protrusion is embedded into the first embedded slot of the bottom plate and the second front protrusion is embedded into the second embedded slot of the bottom plate, and the lower embedded slot of the first clip piece and the upper embedded slot of the second clip piece are mutually inserted to form a double-clipped structure, so as to fix the first hollow buffer structure and the second hollow buffer structure; a front side plate fixedly connected to a third side of the bottom plate, wherein the front side plate is folded upwardly and inwardly to form a front side structure, and the front side structure comprises an upper buttoned slot, and the first fixed piece and the second fixed piece are inserted into the front side structure, and a storage chamber is constituted between the front side structure, the first hollow buffer structure, the double-clipped structure and the second hollow buffer structure; and an upper cover plate fixedly connected to a fourth side of the bottom plate, wherein a front edge of the upper cover plate comprises a lock piece, and when the upper cover plate is folded upwardly and inwardly to cover the first hollow buffer structure, the second hollow buffer structure, the double-clipped structure and the front side structure, the lock piece can be inserted into the upper buttoned slot.  
         [0012]     According to a preferred embodiment of the present invention, the bottom plate further comprises a third embedded slot located between the bottom plate and the first side plate, a fourth embedded slot located between the bottom plate and the second side plate, and a fifth embedded slot located between the bottom plate and the front side plate for being inserted into by a first lower holding piece of the first side plate, the second lower holding piece of the second side plate and a protrusion of the front side plate, respectively, so as to fix the first hollow buffer structure, the second hollow buffer structure and the front side structure.  
         [0013]     The packaging carton of the present invention is formed by folding a paper plate and in one piece, and is fabricated by linking two clip slots. Furthermore, the packaging carton comprises hollow buffer structures. Therefore, the production process can be simplified, the consumables and the cost of the packaging carton can be reduced, and the requirement of environmental protection can be met. 
     
    
     BRIEF DESCRIPTION OF THE DRAWINGS  
       [0014]     The foregoing aspects and many of the attendant advantages of this invention will become more readily appreciated as the same becomes better understood by reference to the following detailed description, when taken in conjunction with the accompanying drawings, wherein:  
         [0015]      FIG. 1  is a diagram showing an unfolded packaging carton in accordance with a preferred embodiment of the present invention.  
         [0016]      FIG. 2  to  FIG. 5  are assembly diagrams showing a packaging carton in accordance with a preferred embodiment of the present invention. 
     
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT  
       [0017]     The present invention discloses a packaging carton formed by folding a paper material and in one piece, and the packaging carton is assembled by a buffer method of linking two clip slots. Therefore, in addition to be fabricated easily, the kinds of materials consumed in fabrication of the packaging carton can be simplified, the cost thereof can be reduced, and the requirement of environmental protection can be met. In order to make the illustration of the present invention more explicitly and completely, the following description is given in conjunction with the drawings from  FIG. 1  to  FIG. 5  are stated.  
         [0018]     Referring to  FIG. 1 ,  FIG. 1  is a diagram showing an unfolded packaging carton in accordance with a preferred embodiment of the present invention. A material of the packaging carton is preferable a paper material having a buffer structure, such as corrugated paper. The packaging carton  100  comprises a bottom plate  102 , a side plate  104  and a side plate  106  fixedly connected to two sides of the bottom plate  102 , respectively, a front side plate  108  fixedly connected to a front side of the bottom plate  102 , and a rear side plate  110  fixedly connected to a rear side of the bottom plate  102 .  
         [0019]     The side plate  104  comprises an outer side piece  112 , a sustaining piece  114 , an upper side piece  118  and an inner side piece  120  connected in sequence, and a clip piece  126  and a fixed piece  128 , respectively connected to two short sides of the outer side piece  112 . The outer side piece  112  is connected to the bottom plate  102 , the clip piece  126  and the rear side plate  110  are located at the same side, and the fixed piece  128  and the front side plate  108  are located at the same side. The sustaining piece  114  comprises a protruding lower holding piece  116 , and the inner side piece  120  comprises a front protrusion  124  located on a front edge of the inner side piece  120 , an upper holding piece  122  opposite the front protrusion  124  and a side protrusion  160  located on the same side as the fixed piece  128 .  
         [0020]     Similar, the side plate  106  comprises an outer side piece  130 , a sustaining piece  132 , an upper side piece  136  and an inner side piece  138  connected in sequence, and a clip piece  144  and a fixed piece  146 , respectively connected to two short sides of the outer side piece  130 . The outer side piece  130  is connected to the bottom plate  102 , the clip piece  144  and the rear side plate  110  are located at the same side, and the fixed piece  146  and the front side plate  108  are located at the same side. The sustaining piece  132  comprises a protruding lower holding piece  134 , and the inner side piece  138  comprises a front protrusion  142  located on a front edge of the inner side piece  138 , an upper holding piece  140  opposite the front protrusion  142 , and a side protrusion  162  located on the same side as the fixed piece  146 .  
         [0021]     The front side plate  108  comprises a front side piece  148  and a front side piece  154 , wherein the front side piece  148  is fixedly connected to the bottom plate  102 , and the front side piece  154  is fixedly connected to the front side piece  148 . The front side piece  148  comprises an upper buttoned slot  150  and an opening hole  152 . The upper buttoned slot  150  is located between the front side piece  148  and the front side piece  154 , and the opening hole  152  is connected to the upper buttoned slot  150 . A front edge of the front side piece  154  comprises a protrusion  155 , and a fixed slot  156  and a fixed slot  158  located on two sides of the protrusion  155 .  
         [0022]     The rear side piece  110  comprises a rear side piece  164 , an upper cover piece  166  and a lock piece  168 , wherein the rear side piece  164  is connected to the bottom plate  102 . The size of the upper cover piece  166  is approximately equal to that of the bottom plate  102 . The bottom plate  102  comprises an embedded slot  174 , an embedded slot  176 , an embedded slot  178 , an embedded slot  180  and an embedded slot  182 . The embedded slot  174 , the embedded slot  176 , the embedded slot  178  and the embedded slot  180  are parallel, the embedded slot  178  is located between the bottom plate  102  and the side plate  104 , the embedded slot  180  is located between the bottom plate  102  and the side plate  106 , and the embedded slot  182  is located between the bottom plate  102  and the front side plate  108 .  
         [0023]     Referring to  FIG. 2  and  FIG. 5 ,  FIG. 2  to  FIG. 5  are assembly diagrams showing a packaging carton in accordance with a preferred embodiment of the present invention. In the assembly of the packaging carton, the clip piece  126  and the clip piece  144  are first folded inwardly to insert the lower embedded slot  170  of the clip piece  126  into the upper embedded slot  172  of the clip piece  144  to form a double-clipped structure  184 , as illustrated in  FIG. 2 .  
         [0024]     Next, the front side plate  108  is folded upwardly and inwardly to double up the front side piece  154  and the front side piece  148  so as to form a front side structure  186 . When the front side piece  154  and the front side piece  148  are folded, the fixed piece  128  of the side plate  104  and the fixed piece  146  of the side plate  106  are sandwiched between the front side piece  154  and the front side piece  148 , and the protrusion  155  located on the front edge of the front side piece  154  is inserted into the embedded slot  182  of the bottom plate  102 , so as to fix the front side structure  186 , as illustrated in  FIG. 3 . After the front side structure  186  is formed, the upper buttoned slot  150  is upward, and the opening hole  152  is located in a front side of the front side structure  186  under the upper buttoned slot  150 .  
         [0025]     Referring to  FIG. 4 , after the front side structure  186  is formed, the side plate  104  and the side plate  106  are folded. Since either the side plate  104  or the side plate  106  can be folded first, the folding sequence of the side plate  104  and the side plate  106  is not limited in the present invention. When the side plate  104  is folded, the outer side piece  112  and the sustaining piece  114  are doubled up to form a side structure, the lower holding piece  116  of the sustaining piece  114  is inserted into the embedded slot  178  between the bottom plate  102  and the side plate  104 , the front protrusion  124  of the inner side piece  120  is inserted into the embedded slot  174  of the bottom plate  102 , the side protrusion  160  of the inner side piece  120  is inserted into the fixed slot  156  of the front side piece  154 , and the upper holding piece  122  of the inner side piece  120  is upward, so as to form a hollow buffer structure  188  on a side of the bottom plate  102 . A height of the upper holding piece  122  is preferably the same as a height of the side structure composed of the outer side piece  112  and the sustaining piece  114 . By using the clip piece  126 , the fixed piece  128 , the lower holding piece  116 , the front protrusion  124 , the side protrusion  160 , the embedded slot  178 , the embedded slot  174  and the fixed slot  156 , the hollow buffer structure  188  can be fixed.  
         [0026]     When the side plate  106  is folded, the outer side piece  130  and the sustaining piece  132  is doubled up to form a side structure, the lower holding piece  134  of the sustaining piece  132  is inserted into the embedded slot  180  between the bottom plate  102  and the side plate  106 , the front protrusion  142  of the inner side piece  138  is inserted into the embedded slot  176  of the bottom plate  102 , the side protrusion  162  of the inner side piece  138  is inserted into the fixed slot  158  of the front side piece  154 , and the upper holding piece  140  of the inner side piece  138  is upward, so as to form a hollow buffer structure  190  on another side of the bottom plate  102 . A height of the upper holding piece  140  is preferably the same as a height of the side structure composed of the outer side piece  130  and the sustaining piece  132 . By using the clip piece  144 , the fixed piece  146 , the lower holding piece  134 , the front protrusion  142 , the side protrusion  162 , the embedded slot  180 , the embedded slot  176  and the fixed slot  158 , the hollow buffer structure  190  can be fixed.  
         [0027]     At present, the assembly of the packaging carton  100  is approximately finished, and a storage chamber  192  is constituted between the hollow buffer structure  188 , the hollow buffer structure  190 , the double-clipped structure  184  and the front side structure  186 , as illustrated in  FIG. 4 .  
         [0028]     Subsequently, a packed object, such as a peripheral product of a notebook, a mobile phone or a spare part, which is slightly smaller than the storage chamber  192 , can be put into the storage chamber  192 . The size of the packaging carton  100  can be adjusted according to the size of the packed object. Then, the upper cover plate  110  of the packaging carton  100  is closed to make the rear side piece  164  cover the double-clipped structure  184  and make the upper cover piece  166  cover the hollow buffer structure  188 , the hollow buffer structure  190 , the front side structure  186 , the double-clipped structure  184  and the storage chamber  192 . Next, the lock piece  168  is inserted into the upper buttoned slot  150  to button up the upper cover plate  110  and complete the package, as illustrated in  FIG. 5 .  
         [0029]     In the packaging carton  100 , with the opening hole  152  located in the front side of the front side structure  186 , the upper cover plate  110  can be easily opened. Furthermore, there are hollow buffer structure  188 , the hollow buffer structure  190 , the double-clipped structure  184 , the front side structure  186 , the upper holding piece  122  and the upper holding piece  140  around the storage chamber  192 , so a better buffer effect and a better protection can be provided for the packed object in the storage chamber  192  to reduce the possibility of damage caused by the external force impacting on the stored object. Moreover, the sustaining piece  114  and the sustaining piece  132  of the two side structure further comprise the lower holding piece  116  and the lower holding piece  134 , respectively, so the structural intensity can be increased. In the preferred embodiment of the present invention, since the packaging carton  100  is formed by folding a single paper plate, the packaging carton  100  is formed in one piece and assembled easily, and the materials consumed in the manufacture of the packaging carton  100  are reduced.  
         [0030]     According to the aforementioned description, one advantage of the present invention is that the packaging carton of the present invention is formed by folding a paper material, and the environmental burden is thus reduced and the requirement of environmental protection is met.  
         [0031]     According to the aforementioned description, another advantage of the present invention is that the packaging carton of the present invention is formed by a buffer method of linking two clip slots, so the consumed materials and cost can be decreased, and the saved cost can be calculated according to the area of the packaging carton.  
         [0032]     According to the aforementioned description, still another advantage of the present invention is that because the packaging carton of the present invention is formed by folding a paper material and in one piece, the packaging carton is assembled easily, and the objective of reducing production cost is achieved.  
         [0033]     As is understood by a person skilled in the art, the foregoing preferred embodiments of the present invention are illustrative of the present invention rather than limiting of the present invention. It is intended that various modifications and similar arrangements be included within the spirit and scope of the appended claims, the scope of which should be accorded the broadest interpretation so as to encompass all such modifications and similar structure.