Packaging box including elastic structure

Abstract

A packaging box, according to one embodiment, may comprise: a first box having a first through hole; a second box movable in a first direction or a second direction on the basis of the first box; and an elastic structure. The elastic structure, according to one embodiment, may comprise: an elastic part compressed by the second box moving in the first direction; and a guide passing through the inside of the elastic part and the first through hole, and guiding transformation of the elastic part. One end of the guide, according to one embodiment, may be in contact with one end of the elastic part, and the other end of the guide may be fixed to a portion of an inner surface of the second box facing the first box. Other embodiments are possible.

What is claimed is: 
     
         1 . A packaging box comprising:
 a first box comprising a base and a sidewall disposed along a periphery of the base and having a first through hole and a surface that faces the base and is opened;   a second box movable with respect to the first box and configured to be changeable into a first state exposing at least a portion of the first box by moving in a first direction with respect to the first box and a second state covering the first box by moving in a second direction opposite to the first direction with respect to the first box; and   an elastic structure disposed on the base, the elastic structure comprising:
 an elastic portion pressed by the second box moving in the first direction; and 
 a guide penetrating the elastic portion and the first through hole and guiding deformation of the elastic portion, 
   wherein an end of the guide contacts with an end of the elastic portion, and   wherein another end of the guide is fastened to a portion of an inner surface of the second box facing the first box.   
     
     
         2 . The packaging box of  claim 1 ,
 wherein the elastic portion comprises a zigzag shaped plate of which a plurality of surfaces are connected with each other, and   wherein the guide penetrates the plurality of surfaces.   
     
     
         3 . The packaging box of  claim 2 ,
 wherein the elastic portion is pressed through the guide with the second box moving in the first direction, and   wherein the plurality of surfaces face each other through the elastic portion being pressed.   
     
     
         4 . The packaging box of  claim 1 ,
 wherein a length of a portion of the guide disposed in the first box with the second box in the first state is shorter than a length of a portion of the guide disposed in the first box with the second box in the second state.   
     
     
         5 . The packaging box of  claim 1 , further comprising:
 a cover disposed in the first box and covering the elastic portion and a portion of the guide and guiding deformation of the elastic structure.   
     
     
         6 . The packaging box of  claim 1 ,
 wherein the elastic structure comprises paper material.   
     
     
         7 . The packaging box of  claim 1 , further comprising:
 an inner box spaced apart from the base in the first box and configured to be movable with respect to the first box in a third direction facing toward the surface and perpendicular to the first direction; and   a band contacting a surface of the inner box facing the base,   wherein the band is configured to move the inner box in the third direction as the second box moves in the first direction.   
     
     
         8 . The packaging box of  claim 7 ,
 wherein an end of the band contacts with a portion of the inner surface of the second box and is spaced apart from the sidewall in the first direction as the second box moves in the first direction.   
     
     
         9 . The packaging box of  claim 7 ,
 wherein the elastic portion is disposed in a space between the inner box and the base.   
     
     
         10 . The packaging box of  claim 7 , further comprising:
 a third box, facing the second box, movable with respect to the first box and configured to expose at least a portion of the first box with the second box in the first state by moving in the second direction with respect to the first box and configured to cover the first box together with the second box with the second box in the second state by moving in the first direction with respect to the first box.   
     
     
         11 . The packaging box of  claim 10 ,
 wherein, by moving in the third direction, the inner box is configured to limit moving of the second box in the second direction and to limit moving of the third box in the first direction.   
     
     
         12 . The packaging box of  claim 1 ,
 wherein the second box comprises an inner wall including a second through hole facing the first through hole and facing the first box and an outer wall facing an outside of the packaging box,   wherein the guide further comprises a fastening portion disposed in a space between the inner wall and the outer wall by penetrating the second through hole and extending in a direction perpendicular to the first direction within the space.   
     
     
         13 . The packaging box of  claim 1 , further comprising:
 an inner box spaced apart from the base in the first box; and   a guide member disposed on the sidewall of the first box and guiding a seating position of the inner box.   
     
     
         14 . The packaging box of  claim 1 ,
 wherein the guide comprises a pressure plate disposed on the end of the guide, and   wherein the elastic portion is configured to be pressed through the pressure plate as the second box moves.   
     
     
         15 . The packaging box of  claim 14 ,
 wherein the elastic portion comprises a zigzag shaped plate of which a plurality of surfaces connect with each other, and   wherein the pressure plate is disposed between two surfaces facing each other among the plurality of surfaces.   
     
     
         16 . A packaging box comprising:
 a first box comprising a base, a first sidewall having a first through hole, a second sidewall having a second through hole facing the first through hole and a surface that faces the base and is opened, wherein the first sidewall and the second sidewall are disposed along a periphery of the base;   a second box movable with respect to the first box;   a third box movable with respect to the first box in a direction opposite to a direction of movement of the second box;   an inner box disposed in the first box, spaced apart from the base and movable with respect to the first box in a direction facing the surface;   an elastic structure disposed in a space between the inner box and the base; and   a band contacting a surface of the inner box facing the base,   wherein the elastic structure includes:
 a first elastic portion configured to be pressed by moving of the second box; 
 a first guide fastened to a portion of the second box by penetrating the first elastic portion and the first through hole and guiding deformation of the first elastic portion; 
 a second elastic portion configured to be pressed by moving of the third box; and 
 a second guide fastened to a portion of the third box by penetrating the second elastic portion and the second through hole and guiding deformation of the second elastic portion, 
   wherein an end of the first guide contacts with an end of the first elastic portion, and   wherein an end of the second guide contacts with an end of the second elastic portion.   
     
     
         17 . The packaging box of  claim 16 ,
 wherein the second and third boxes are configured to be changeable by moving with respect to the first box to:
 a first state exposing at least a portion of the first box as the second box moves in a first direction and the third box moves in a second direction opposite to the first direction; and 
 a second state covering the first box as the second box moves in the second direction and the third box moves in the first direction. 
   
     
     
         18 . The packaging box of  claim 17 ,
 wherein, with the second and third boxes in the first state, the inner box is configured to limit moving of the second box in the second direction and to limit moving of the third box in the first direction.   
     
     
         19 . The packaging box of  claim 17 ,
 wherein a length of a portion of the first guide disposed in the first box with the second and third boxes in the first state is shorter than a length of a portion of the first guide disposed in the first box with the second and third boxes in the second state, and   wherein a length of a portion of the second guide disposed in the first box with the second and third boxes in the first state is shorter than a length of a portion of the second guide disposed in the first box with the second and third boxes in the second state.   
     
     
         20 . A packaging box, comprising:
 a first box having an interior and an open top and comprising opposed sides defining through-holes;   second and third boxes having open sides and being disposable in:
 first positions in which the second and third boxes are withdrawn to expose the interior through the open top, and 
 second positions in which the second and third boxes contact and receive opposite sides of the first box in respective interiors thereof through the open sides to close the open top; 
   first elastics disposed through the through-holes to bias the second and third boxes toward the second positions;   an inner box disposable in the interior; and   second elastics to bias the inner box outwardly from the interior with the second and third boxes occupying the first positions.