Abstract:
Disclosed is a packaging device for a liquid crystal panel, including a first main body having a bottom and a plurality of sidewalls connected to sides of bottom. The sidewalls define at least one opening. At least one second main body has a bottom and sidewalls connected to the bottom and define an opening that is movably received in the at least one opening of the first main body such that the packaging device is expandable by moving the second main body in a direction away from the first main body.

Description:
CROSS REFERENCE TO RELATED APPLICATIONS 
       [0001]    This is a divisional application of co-pending U.S. patent application Ser. No. 14/110,444, filed on Oct. 8, 2013. 
     
    
     BACKGROUND OF THE INVENTION 
       [0002]    1. Field of the Invention 
         [0003]    The present invention relates to the field of packaging device, and in particular to a packaging device for loading liquid crystal panel. 
         [0004]    2. The Related Arts 
         [0005]    The liquid crystal display (LCD) is a flat ultra-thin display device, which comprises a specific amount of color or black-and-white pixels disposed in front of a light source or reflective surface. Due to the advantages of low power consumption, high resolution, reduced thickness, and light weight, the LCD finds wide applications in the field of mainstream display. The panel of the LCD is mainly made of glass. As the development for the panel of the LCD is toward further ultra-thin and light-weighted, the manufacturers of the panels place extra emphasis on the protection of the panels, and thus the packaging and protection of the panel products attracts more attention. 
         [0006]    The known packaging device of the liquid crystal display panel is a monolithically formed by injection molding of the material, mainly expanded polypropylene (EPP), or polyethylene (PE). As the size of the display panel increases, the manufacturing of such large-sized monolithic packaging device will require the larger injection molding equipment, which increases the difficulty of manufacturing as well as the cost. In addition, for environmental friendliness, the packaging device of display panel is preferred to be recyclable and reusable. For the known large-sized monolithic packaging device, the recycling ratio is often low due to the oversize and non-adjustable appearance. 
       SUMMARY OF THE INVENTION 
       [0007]    The technical issue to be addressed by the present invention is to provide a packaging device for liquid crystal panel, which can be expanded when in use for loading large-sized panels, and the size of the packaging device can be reduced when idled or recycled to enhance the efficiency. 
         [0008]    To achieve the above object, the present invention adopts the following technical solution. 
         [0009]    The present invention provides a packaging device for liquid crystal panel, which comprises: a first main body, the first main body comprising a bottom and a plurality of side walls connected to the sides of the bottom, wherein one of the side walls forms an opening; a second main body, the second main body comprising a bottom and a plurality of side walls connected to the sides of the bottom, wherein one of the side walls forms an opening; wherein the opening of the second main body is slightly smaller than the opening of the first main body and the opening of the second main body faces towards the opening of the first main body; the second main body is movable adjustably into the first main body; the bottom and the side walls of the first main body and the bottom and the side walls of the second main body form a loading space for loading the liquid crystal panel. 
         [0010]    According to a preferred embodiment of the present invention, the packaging device for liquid crystal panel comprises: a first main body, the first main body comprising a bottom, and a first side wall and a second side wall connected to two opposite sides of the bottom, wherein a first end of the first side wall and a first end of the second side wall are connected by a third side wall; a second end of the first side wall and a second end of the second side wall form an opening of the first main body; a second main body, the second main body comprising a bottom, and a fourth side wall and a fifth side wall connected to two opposite sides of the bottom, wherein a first end of the fourth side wall and a first end of the fifth side wall are connected by a sixth side wall; a second end of the fourth side wall and a second end of the fifth side wall form an opening of the second main body; wherein the opening of the second main body is slightly smaller than the opening of the first main body and the opening of the second main body faces towards the opening of the first main body; the second main body is movable adjustably into the first main body; the bottom, the first side wall, the second side wall and the third side wall of the first main body and the bottom, the fourth side wall, the fifth side wall and the sixth side wall of the second main body form a loading space for loading the liquid crystal panel. 
         [0011]    In the above embodiment of the present invention, the bottom of the first main body is disposed with a track trench respectively at the two sides of the bottom close to the first side wall and the second side wall; the lower part of the bottom of the second main body is disposed with a guiding track respectively at a location corresponding to the fourth side wall and the fifth side wall; the guiding track matches the track trench for the second main body to move adjustably into the first main body. 
         [0012]    In the above embodiment of the present invention, the bottom of the first main body is disposed with a buffer part respectively at a location close to the first end of the first side wall and the first end of the second side wall; the buffer part is connected to the first side wall and the second side wall in a protruding manner; the bottom of the second main body is disposed with a buffer part respectively at a location close to the first end of the fourth side wall and the first end of the fifth side wall; the buffer part is connected to the fourth side wall and the fifth side wall in a protruding manner. 
         [0013]    In the above embodiment of the present invention, the second end of the first side wall and the second end of the second side wall are disposed respectively with a stuck trench; the second end of the fourth side wall and the second end of the fifth side wall are disposed respectively with a stuck point; the stuck trench and the stuck point match each other to prevent the second main body from disengaging from the first main body when moving adjustably inside the first main body. 
         [0014]    In the above embodiment of the present invention, the first side wall and the second side wall are further disposed respectively with a locking stuck trench; the locking stuck trench and the stuck point match each other to lock the position of the second main body inside the first main body; wherein the two sides of the locking stuck trench are beveled chamfers. 
         [0015]    In the above embodiment of the present invention, the bottom surface of the bottom of the second main body is disposed with at least an enhancement part; the enhancement part is connected to the bottom surface of the bottom of the second main body by screw or snap connection. 
         [0016]    In the above embodiment of the present invention, the upper surface of the bottom of the first main body comprises a first plane and a second plane; the first plane is at a higher level than the second plane; the first plane and the second plane are connected by an inclined plane; the bottom of the second main body comprises a third plane as the bottom surface; the guiding track is disposed with a guiding track convex part at an end away from the opening; the guiding track convex is along the third plane and downwards; when the second main body enters the first main body, the third plane closely fits the first plane and the guiding track convex closely fits the second plane so that the loading surface of the loading space is at a horizontal level; when the second main body expands beyond the first main body, the third plane closely fits the second plane, and the guiding track convex part closely fits the surface placing the packaging device so that the loading surface of the loading space is at a horizontal level. 
         [0017]    In the above embodiment of the present invention, the first side wall and the second side wall are disposed respectively with a concave trench along the length direction; the fourth side wall and the fifth side wall are disposed respectively with a convex part; the convex part matches the concave trench. 
         [0018]    According to another preferred embodiment of the present invention, the packaging device for liquid crystal panel comprises: a first main body, the first main body comprising a bottom, and a first side wall and a second side wall connected to two opposite sides of the bottom, wherein the two ends of the first side wall and the two ends of the second side wall respectively form a first opening and a second opening of the first main body; two second main bodies, each of the two second main bodies comprising a bottom, and a fourth side wall and a fifth side wall connected to two opposite sides of the bottom, wherein a first end of the fourth side wall and a first end of the fifth side wall are connected by a sixth side wall; a second end of the fourth side wall and a second end of the fifth side wall form an opening of the second main body; wherein the openings of the second main bodies are slightly smaller than the opening of the first main body and the openings of the second main bodies face respectively towards the first opening and the second opening of the first main body; the two second main bodies are movable adjustably into the first main body; the bottom, the first side wall, and the second side wall of the first main body and the bottom, the fourth side wall, the fifth side wall and the sixth side wall of the two second main bodies form a loading space for loading the liquid crystal panel. 
         [0019]    The packaging device for the liquid crystal panel according to the present invention uses an assembly of two main bodies, and one of the two main bodies is able to move adjustably. During the manufacturing of the device, no large-sized injection molding equipment is required so as to reduce the manufacturing difficulty and the cost. Also, the packaging device can be expanded when in use for loading large-sized panels, and the size of the packaging device can be reduced when idled or recycled to enhance the efficiency. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0020]    To make the technical solution of the embodiments according to the present invention, a brief description of the drawings that are necessary for the illustration of the embodiments will be given as follows. Apparently, the drawings described below show only example embodiments of the present invention and for those having ordinary skills in the art, other drawings may be easily obtained from these drawings without paying any creative effort. In the drawings: 
           [0021]      FIG. 1  is a schematic view showing a first embodiment of the packaging device when expanded according to the present invention; 
           [0022]      FIG. 2  is a schematic view showing the packaging device of  FIG. 1  when reduced; 
           [0023]      FIG. 3  is a top view of the packaging device of  FIG. 1 ; 
           [0024]      FIG. 4  is an enlarged partial view showing the structure A of the packaging device of  FIG. 3 ; 
           [0025]      FIG. 5  is an enlarged partial view showing the structure C of the packaging device of  FIG. 3 ; 
           [0026]      FIG. 6  is a schematic cross-sectional view along Y-Y direction of the packaging device of  FIG. 3 ; 
           [0027]      FIG. 7  is a main cross-sectional view along Y-Y direction of the packaging device of  FIG. 3 ; 
           [0028]      FIG. 8  is an enlarged partial view showing the structure B of the packaging device of  FIG. 7 ; 
           [0029]      FIG. 9  is a cross-sectional view along X1-X1 direction of the packaging device of  FIG. 3 ; 
           [0030]      FIG. 10  is a schematic cross-sectional view along X2-X2 direction of the packaging device of  FIG. 3 ; 
           [0031]      FIGS. 11A and 11B  are cross-sectional views along X2-X2 direction of the packaging device of  FIG. 3  in different situations, respectively; 
           [0032]      FIG. 12  is a schematic view showing a second embodiment of the packaging device when expanded according to the present invention; 
           [0033]      FIG. 13  is a top view of the packaging device of  FIG. 12 ; 
           [0034]      FIG. 14  is a schematic view showing the packaging device of  FIG. 12  when reduced; and 
           [0035]      FIG. 15  is a top view showing a third embodiment of the packaging device when expanded according to the present invention. 
       
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 
       [0036]    As aforementioned, the present invention is to address the disadvantages of known techniques. The present invention provides a packaging device for liquid crystal panel. The packaging device comprises: a first main body, the first main body comprising a bottom and a plurality of side walls connected to the sides of the bottom, wherein one of the side walls forms an opening; a second main body, the second main body comprising a bottom and a plurality of side walls connected to the sides of the bottom, wherein one of the side walls forms an opening; wherein the opening of the second main body is slightly smaller than the opening of the first main body and the opening of the second main body faces towards the opening of the first main body; the second main body is movable adjustably into the first main body; the bottom and the side walls of the first main body and the bottom and the side walls of the second main body form a loading space for loading the liquid crystal panel. 
         [0037]    The packaging device for liquid crystal panel of the present invention can be expanded when in use for loading large-sized panels, and the size of the packaging device can be reduced when idled or recycled to enhance the efficiency. 
         [0038]    The following detailed description refers to drawings and embodiments of the present invention. 
       First Embodiment 
       [0039]    Referring to  FIGS. 1-11 ,  FIG. 1  is a schematic view showing a first embodiment of the packaging device when expanded according to the present invention;  FIG. 2  is a schematic view showing the packaging device of  FIG. 1  when reduced; and  FIG. 3  is a top view of the packaging device of  FIG. 1 . 
         [0040]    As shown in  FIG. 1 , the packaging device of the instant embodiment comprises: a first main body  10 , the first main body  10  comprising a bottom  101 , and a first side wall  102  and a second side wall  103  connected to two opposite sides of the bottom  101 , wherein a first end  102   a  of the first side wall  102  and a first end  103   a  of the second side wall  103  are connected by a third side wall  104 ; a second end  102   b  of the first side wall  102  and a second end  103   b  of the second side wall  103  form an opening of the first main body  10 ; a second main body  20 , the second main body  20  comprising a bottom  201 , and a fourth side wall  202  and a fifth side wall  205  connected to two opposite sides of the bottom  201 , wherein a first end  202   a  of the fourth side wall  202  and a first end  203   a  of the fifth side wall  203  are connected by a sixth side wall  204 ; a second end  202   b  of the fourth side wall  202  and a second end  203   b  of the fifth side wall  203  form an opening of the second main body  20 . 
         [0041]    In the instant embodiment, the opening of the second main body  20  is slightly smaller than the opening of the first main body  10 , and the opening of the second main body  20  faces towards the opening of the first main body  10 . The second main body  20  is able to move adjustably into the first main body  10 . The bottom  101 , the first side wall  102 , the second side wall  103  and the third side wall  104  of the first main body  10  and the bottom  201 , the fourth side wall  202 , the fifth side wall  203  and the sixth side wall  204  of the second main body  20  form a loading space for loading the liquid crystal panel. 
         [0042]    In the instant embodiment, the first main body  10  and the second main body  20  can be manufactured by an injection molding process. The material can be selected from antistatic polycarbonate (PC), polyethylene (PE), expandable polyethylene (EPE), expanded polypropylene (EPP), high density polyethylene (HDPE), and so on. 
         [0043]    In the instant embodiment, the bottom  101  of the first main body  10  is disposed with a track trench  105  respectively at the two sides of the bottom  101  close to the first side wall  102  and the second side wall  103 . The lower part of the bottom  201  of the second main body  20  is disposed with a guiding track  205  respectively at a location corresponding to the fourth side wall  202  and the fifth side wall  203 . The guiding track  205  matches the track trench  105  for the second main body  20  to move adjustably into the first main body  10 . 
         [0044]    In the instant embodiment, the bottom  101  of the first main body  10  is disposed with a buffer part  106  respectively at a location close to the first end  102   a  of the first side wall  102  and the first end  103   a  of the second side wall  103 . The buffer part  106  is connected to the first side wall  102  and the second side wall  103  in a protruding manner. The bottom  201  of the second main body  20  is disposed with a buffer part  206  respectively at a location close to the first end  202   a  of the fourth side wall  202  and the first end  203   a  of the fifth side wall  203 . The buffer part  206  is connected to the fourth side wall  202  and the fifth side wall  203  in a protruding manner. Referring to  FIG. 5 , the buffer parts  106 ,  206  comprise a protruding part  106   b,    206   b  connected to the side walls  102 ,  103 ,  202 ,  203  in a protruding manner, and a matching concave part  106   a,    206   a.  The concave part  106   a,    206   a  and the protruding part  106   b ,  206   b  are engaged to form the buffer part  106 ,  206 . 
         [0045]    In the instant embodiment, the second end  102   b  of the first side wall  102  and the second end  103   b  of the second side wall  103  are disposed respectively with a stuck trench  107 . The second end  202   b  of the fourth side wall  202  and the second end  203   b  of the fifth side wall  203  are disposed respectively with a stuck point  207 . The stuck trench  107  and the stuck point  207  match each other to prevent the second main body  20  from disengaging from the first main body  10  when moving adjustably inside the first main body  10 . As shown in  FIG. 4 , a side of the stuck trench  107  away from the second end  102   b  is disposed as a beveled chamfer, and the stuck point  207  is disposed as a beveled chamfer. When the packaging device is expanded, the second main body  20  does not disengage from the first main body  10 , and the relative positions of the second main body  20  and the first main body  10  are also fixed. When the packaging device is reduced, a force is applied to push the second main body  20  to make the stuck point  207  cross over the stuck trench  107  so as to accommodate the second main body  20  inside the first main body  10 . 
         [0046]    In the instant embodiment, the bottom surface of the bottom  201  of the second main body  20  is disposed with at least an enhancement part  208 . The enhancement part  208  is connected to the bottom surface of the bottom  201  of the second main body  20  by screw or snap connection. As shown in  FIG. 6 , the material for the enhancement part  208  is preferably with higher rigidity, such as, SECC, SGCC, aluminum alloy, and so on. 
         [0047]    Referring to  FIGS. 7 and 8 , in the instant embodiment, the first side wall  102  and the second side wall  103  are disposed respectively with a concave trench  109  along the length direction. The fourth side wall  202  and the fifth side wall  203  are disposed respectively with a convex part  209 ; the convex part  209  matches the concave trench  109  to prevent the second main body  20  from disengaging from the first main body  10  along the upward direction perpendicular to the bottom. Also, a gap is reserved between the convex part  209  and the concave trench  109  for the convenience of expansion and reduction of the packaging device. 
         [0048]    Referring to  FIGS. 9, 10, 11A and 11B , the upper surface of the bottom  101  of the first main body  10  comprises a first plane  101   a  and a second plane  101   b . The first plane  101   a  is at a higher level than the second plane  101   b , and the first plane  101   a  and the second plane  102   a  are connected by an inclined plane  101   c.  The bottom  201  of the second main body  20  comprises a third plane  201   a  as the bottom surface. The guiding track  205  is disposed with a guiding track convex part  205   a  at the end away from the opening. The guiding track convex  205   a  is along the third plane  201   a  and downwards. When the second main body  20  enters the first main body  10 , the third plane  201  a closely fits the first plane  101   a  and the guiding track convex closely  205   a  fits the second plane  101   b  so that the loading surface of the loading space is at a horizontal level as shown in  FIG. 11  B. When the second main body  20  expands beyond the first main body  10 , the third plane  201   a  closely fits the second plane  101   b , and the guiding track convex part  205   a  closely fits the surface placing the packaging device so that the loading surface of the loading space is at a horizontal level as shown in  FIG. 11A . 
       Second Embodiment 
       [0049]    Referring to  FIGS. 12-14 ,  FIG. 12  is a schematic view showing a second embodiment of the packaging device when expanded according to the present invention;  FIG. 13  is a top view of the packaging device of  FIG. 12 ; and  FIG. 14  is a schematic view showing the packaging device of  FIG. 12  when reduced. 
         [0050]    The second embodiment differs from the first embodiment in that, in the second embodiment, the first side wall  102  and the second side wall  103  are further disposed respectively with a locking stuck trench  108 . The locking stuck trench  108  and the stuck point  207  match each other to lock in the position of the second main body  20  inside the first main body  10 , wherein the two sides of the locking stuck trench  108  are beveled chamfers. 
         [0051]    In the instant embodiment, a plurality of locking stuck trenches is disposed at the side wall so that the second main body  20  can be fixed at different positions inside the first main body  10 . In other words, the packaging device can provide different sizes to accommodate the liquid crystal panels of different sizes. 
       Third Embodiment 
       [0052]      FIG. 15  is a top view showing a third embodiment of the packaging device when expanded according to the present invention. 
         [0053]    As shown in  FIG. 15 , the packaging device for liquid crystal panel of the instant embodiment comprises: a first main body  10 , the first main body  10  comprising a bottom  101 , and a first side wall  102  and a second side wall  103  connected to two opposite sides of the bottom  101 , wherein the two ends of the first side wall  102  and the two ends of the second side wall  103  respectively form a first opening and a second opening of the first main body  10 ; two second main bodies  20 , each of the two second main bodies  20  comprising a bottom  201 , and a fourth side wall  202  and a fifth side wall  203  connected to two opposite sides of the bottom  201 , wherein a first end  202   a  of the fourth side wall  202  and a first end  203   a  of the fifth side wall  203  are connected by a sixth side wall  204 ; a second end  202   b  of the fourth side wall  202  and a second end  203   b  of the fifth side wall  203  form an opening of the second main body  20 ; wherein the openings of the second main bodies  20  are slightly smaller than the openings of the first main body  10  and the openings of the second main bodies  20  face respectively towards the first opening and the second opening of the first main body  10 ; the two second main bodies  20  are able to move adjustably into the first main body  10 ; the bottom  101 , the first side wall  102 , and the second side wall  103  of the first main body  10  and the bottom  201 , the fourth side wall  202 , the fifth side wall  203  and the sixth side wall  204  of the two second main bodies  20  form a loading space for loading the liquid crystal panel. 
         [0054]    The instant embodiment differs from the first embodiment in that the first main body of the packaging device of this embodiment is disposed with two opposite openings and the two second main bodies  20  can move adjustably through the two openings into the first main body  10 . 
         [0055]    In summary, the packaging device for the liquid crystal panel according to the present invention uses an assembly of two main bodies, and one of the two main bodies is able to move adjustably. During the manufacturing of the device, no large-sized injection molding equipment is required so as to reduce the manufacturing difficulty and the cost. Also, the packaging device can be expanded when in use for loading large-sized panels, and the size of the packaging device can be reduced when idled or recycled to enhance the efficiency. 
         [0056]    It should be noted that in the present disclosure the terms, such as, first, second are only for distinguishing an entity or operation from another entity or operation, and does not imply any specific relation or order between the entities or operations. Also, the terms “comprises”, “include”, and other similar variations, do not exclude the inclusion of other non-listed elements. Without further restrictions, the expression “comprises a . . . ” does not exclude other identical elements from presence besides the listed elements. 
         [0057]    Embodiments of the present invention have been described, but not intending to impose any unduly constraint to the appended claims. Any modification of equivalent structure or equivalent process made according to the disclosure and drawings of the present invention, or any application thereof, directly or indirectly, to other related fields of technique, is considered encompassed in the scope of protection defined by the clams of the present invention.