Packaging structure for roll-shaped materials

Abstract

A packaging structure for packaging roll-shaped materials wound on a core, comprises: a bottom plate; left and right supporting plates to support both end portions of the core from a bottom side of the core; front and rear holding plates to support the left and right supporting plates from front and rear sides of the left and right supporting plates so as to hold a stand-up condition that the left and right supporting plates stand on the bottom plate; and a supporting structure to make the bottom plate, the left and right supporting plates and the front and rear holding plates in a single body structure and to make the left and right supporting plates and the front and rear holding plates collapsible.

What is claimed is:  
     
         1 . A packaging structure for packaging roll-shaped materials wound on a core, comprising: 
 a bottom plate;    left and right supporting plates to support both end portions of the core from a bottom side of the core;    front and rear holding plates to support the left and right supporting plates from front and rear sides of the left and right supporting plates so as to hold a stand-up condition that the left and right supporting plates stand on the bottom plate; and    a supporting structure to make the bottom plate, the left and right supporting plates and the front and rear holding plates in a single body structure and to make the left and right supporting plates and the front and rear holding plates collapsible.    
     
     
         2 . The packaging structure of    claim 1   , wherein the front and rear holding plates engages with the left and right supporting plates at the front and rear sides of the left and right supporting plates so as to hold the stand-up condition and each of the left and right supporting plates has a notch to support the both end portions of the core from the bottom side of the core.  
     
     
         3 . The packaging structure of    claim 1   , wherein the left and right supporting plates are structured to be collapsible by being extended from the bottom plate in left and right directions and the front and rear holding plates are structured to be collapsible by being extended from the bottom plate in front and rear directions.  
     
     
         4 . The packaging structure of    claim 1   , wherein the bottom plate, the left and right supporting plates, the front and rear holding plates and the supporting structure are made of a corrugated cardboard.  
     
     
         5 . The packaging structure of    claim 1   , wherein the bottom plate is a palette having a bottom member, a top member, a longitudinal joist member and a transverse joist member, the longitudinal joist member and the transverse joist member are provided between the bottom member and the top member, and each of the bottom member, the top member, the longitudinal joist member and the transverse joist member is made of a corrugated cardboard covered with a outer covering sheet having a waterproof property.  
     
     
         6 . The packaging structure of    claim 5   , wherein the palette is structured such that a plurality of longitudinal joist members and a plurality of transverse joist members are mounted on the bottom member, the top member is mounted on the plurality of longitudinal joist members and the plurality of transverse joist members, folk insertion holes are provided between the plurality of longitudinal joist members and a water penetration preventing measure is applied to the both ends of each of the plurality of longitudinal joist members.  
     
     
         7 . The packaging structure of    claim 1   , wherein the bottom plate is a palette, and wherein the left and right supporting plates, the front and rear holding plates and the supporting structure are fixed on the palette.  
     
     
         8 . The packaging structure of    claim 7   , further comprising: 
 an outer covering structure being a collapsible box having a ceiling plate and an open bottom so as to mount on the palette; and    an enforcing structure including left and right enforcing plates to be placed at both sides of the left and right supporting plates and front and rear enforcing plates to be placed at front and rear sides of the front and rear holding plates, wherein the left and right enforcing plates and the front and rear enforcing plates are connected so as to surround the left and right supporting plates and the front and rear holding plates and wherein the left and right enforcing plates and the front and rear enforcing plates are placed on the palette so as to support the ceiling plate of the box.    
     
     
         9 . The packaging structure of    claim 8   , wherein the left and right supporting plates, the front and rear holding plates, the supporting structure, the palette, the outer covering structure and the enforcing structure are made of a corrugated cardboard.  
     
     
         10 . The packaging structure of    claim 1   , further comprising: 
 a pair of narrow width adapting blocks each including a core supporting plate having the same shape and same size as that of the left and right supporting plates, and front and rear standing plates connected to the core supporting plate so as to be collapsible,    wherein the pair of narrow width adapting blocks are placed between the left and right supporting plates and the core of roll-shaped materials having a narrow width is supported between the pair of narrow width adapting blocks by the core supporting plates, and    wherein the bottom plate, the left and right supporting plates, the front and rear holding plates, the supporting structure and the pair of narrow width adapting blocks are made of a corrugated cardboard.    
     
     
         11 . A method of transporting roll-shaped materials wound on a core, comprising: 
 packaging the roll-shaped materials with a packaging structure comprising, 
 a bottom plate;  
 left and right supporting plates to support both end portions of the core from the bottom of the core;  
 front and rear holding plates to support the left and right supporting plates from front and rear sides of the left and right supporting plates so as to hold a stand-up condition that the left and right supporting plates stand on the bottom plate; and  
 a supporting structure to make the bottom plate, the left and right supporting plates and the front and rear holding plates in a single body structure and to make the left and right supporting plates and the front and rear holding plates collapsible; and  
   transporting the roll-shaped materials packaged with the packaging structure.    
     
     
         12 . The method of    claim 11   , wherein an entire figure of the core and the roll-shaped materials wound on the core are enclosed with a light intercepting film.  
     
     
         13 . The method of    claim 12   , wherein the light intercepting film is shaped in a cylinder.  
     
     
         14 . The method of    claim 11   , wherein the packaging structure further comprises a pair of core caps each comprising an inserted section having an outer diameter corresponding to an inside diameter of the core and a flange connected to one end of the inserted section so as to stop the insertion, and wherein the pair of core caps are inserted into both ends of the cores so as to prevent deformation of the core caused by the weight of the roll-shaped materials.