Patent Publication Number: US-6341691-B1

Title: Package for a strip-shaped or band-shaped product

Description:
The invention relates to a package for a strip-shaped or band-shaped product made of plastic, paper or plastic foam, in roll form, an opening being provided in one of the package walls for removing the product. 
     BACKGROUND OF THE INVENTION 
     In the field of use of foils, bands, strips of paper, plastic or plastic foam materials, there are many package possibilities. These products are often wound up into rolls during the production and are packed as easy to use as possible for the consumer. 
     The aim of this invention is to improve the handling of such strip-shaped or band-shaped products so that a pulling off of these products from the roll which is appropriate for the handling is possible in order to pull off and separate a section thereof. Here, the product is to be packed in roll form in a package, i.e. in an enveloping carton, and to be stored loose in this carton without the product in roll form jamming or becoming distorted when being pulled off. Furthermore, the fixing and the bearing of the product roll is to be effected at low costs and the bearing of the product roll in the package without additional holding devices being necessary in the inner space of the package. 
     SUMMARY OF THE INVENTION 
     This aim is achieved for a package according to the type described above by the characteristics indicated in claim  1 . 
     Accordingly, the package according to the invention comprises a cubical or a right parallelepiped package body made of cardboard or of another appropriate material with a hollow cylindrical holding device made of paperboard, cardboard or another appropriate material, placed in the inner space of the package body and on two opposite walls of the package body, for receiving the product roll, whereby the hollow cylindrical holding device is held by means of two stoppers stuck through openings or dowel holes in the walls of the package body constituting the pivot bearings for the hollow cylindrical holding device for the roll product, whereby both pivot bearing stoppers can be locked in the walls of the package body. 
     Accordingly, the holding device for the product roll, preferably a cardboard roll, is in the center of the package body, the bearing being such that this cardboard roll is held in the package body, i.e in the enveloping carton, as easily as possible at the lowest possible costs. In order to fix this holding device quickly and simply on the package body wall, the package body is constructed in such a way that it has an opening on both sides through which a stopper with a collar is stuck through the opening from outside because this pivot bearing stopper is fixed through a rotation on the package wall. To this end, the package body additionally has at least one punched out recess adjacent to the circular opening through which a locking pin or a trunnion, which is on the pivot bearing stopper, is introduced. This locking pin or this trunnion is placed at a distance from the collar of the pivot bearing stopper which approximately corresponds to the thickness of the package body material so that the locking pin or the trunnion conforms to the inner side of the package body wall on the back side thereof on its inner side by a rotation of the pivot bearing stopper, and thus a falling out of the pivot bearing stopper is prevented. Thus, the cylindrical holding device or the cardboard roll on which the product is rolled on is safely held rotating. 
     Such a constituted package for a rolled-up strip-shaped or band-shaped product can be produced economically and, due to the use of pivot bearing stoppers lockable in the wall faces of the package body of the package for the cylindrical hollow body or the cardboard roll, it is ensured that the product rolled up on the cardboard roll can easily be pulled off in order to be able to cut off sections. The locking of the hollow cylindrical holding device for the product by means of pivot bearing stoppers is easy to construct, can be produced without difficulty and enables the easy replacement of an empty hollow cylindrical holding device by a hollow cylindrical holding device with a new rolled-up product. Since the locking of the pivot bearing stoppers takes place only over a pin provided on the pivot bearing stopper which grasps behind the wall of the package in the area of an opening into which the pivot bearing stopper for the hollow cylindrical holding device or cardboard roll is stuck, it is ensured that on the one hand the pivot bearing stoppers are surely held on the walls of the package and, on the other hand, the pivot bearing stoppers can easily be pulled off from the walls of the package in order to replace the hollow cylindrical holding device or the cardboard roll. 
     Advantageous configurations of the invention are subject of the subclaims. 
     According to a further embodiment of the invention, two locking pins or trunnions are provided on the outer wall of the stopper body of each pivot bearing stopper on two opposite sides, two opposite slit-shaped or groove-shaped recesses being configured in the area of the edge limiting the opening in the wall of the package body for introducing the locking pins. 
     The diameter of each circular opening in the walls of the package body approximately corresponds to the outer diameter of the hollow cylindrical stopper body. 
     The hollow cylindrical stopper body is preferably configured closed at its free end in order to guarantee a sufficient inherent stability. 
     The ring-shaped disk or collar on the stopper body of the pivot bearing stoppers shows a self-adhesive foil to be sticked on from outside which projects over the outer edge of the ringshaped disk or collar and which is sticked to the outer wall surface of the wall of the package body which receives the pivot bearing stopper. 
    
    
     BRIEF DESCRIPTION OF THE DRAWINGS 
     An embodiment of the invention is represented in the drawing. 
     FIG. 1 is a graphical view of a package with a hollow cylindrical holding device placed in its inner space for a rolled-up strip-shaped or band-shaped product, the cylindrical holding device for the rolled-up product being held by means of pivot bearings stoppers on two opposite walls of the package body. 
     FIG. 2 shows a vertical section of a wall section of the package body with an inserted pivot bearing stopper for receiving a hollow cylindrical holding device for the rolled-up product. 
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT 
     According to FIG. 1, the package configured according to the invention  100  for a strip-shaped or a band-shaped product  20  is made of a package body  10  with a front wall  11 , a back wall  12 , the two opposite side walls  13 ,  14 , a bottom side wall  15  and a top side wall  16 , a removal opening  16  for the product being configured in the front wall  11  which can be opened and closed by means of a closing bracket  18 . A hollow cylindrical holding device  30  is held in the inner space  19  of the package body  10  by means of two pivot bearing stoppers  40 ,  40 ′. The product  20  is rolled up onto this hollow cylindrical holding device  30 . The package body  10  of the package  100  which shows a cubical or a right parallelepiped or another appropriate geometrical form is made of cardboard or of another appropriate material and thus constitutes the enveloping carton for the rolled-up product. The hollow cylindrical holding device  30  for receiving the product  20  is made of paperboard, cardboard, plastic or another appropriate material. The pivot bearing stoppers  40 ,  40 ′ are also configured in the same way. They are also made of paperboard, cardboard, plastic or another appropriate material. 
     The arrangement of the hollow cylindrical holding device  30  in the inner space  19  of the package body of the package  100  is made by means of the pivot bearing stoppers  40 ,  40 ′. Each pivot bearing stopper  40 ,  40 ′ is made of a stopper body  41  which is preferably configured as a hollow cylinder and the free end  41  of which is closed by a sealing plate  43 . This stopper body  41  carries at its other end a ring-shaped disk or a collar  42 , the outer diameter of which is bigger than the outer diameter of the stopper body  41  itself. Moreover, the stopper body  41  of each pivot bearing stoper  40 ,  40 ′ carries at least one locking,pin or trunnion  50 . In the embodiment shown in FIG. 1 and 2, two locking pins or trunnions  50 ,  50 ′ which are placed opposite are fixed to the stopper body  41 . The distance between these locking pins or trunnions  50 ,  50 ′ and the ring-shaped disk or collar  42  of the stopper body  41  approximately corresponds to the thickness of the material of which the package body  10  is made. 
     The pivot bearing stoppers  40 ,  40 ′ are held in openings  60  of the two opposite side walls  13 ,  14 . In FIG. 1, only the opening  60  for one of the one pivot bearing stopper  40  in the side wall  13  of the package body  10  is represented. In the same way, the other side wall  14  also shows an opening  60  configured correspondingly. 
     The diameter of the circular openings  60  approximately corresponds to the diameter of the hollow cylindrical stopper body  41  of the pivot bearing stoppers  40 ,  40 ″ so that the pivot bearing stoppers can be stuck through these openings  60  in these side walls  13 ,  14  of the package body  10  so that the ring-shaped disks or collars  42  of the stopper body  41  of the two pivot bearing stoppers  40 ,  40 ′ sit close to the outer wall faces of the side walls  13 ,  14 . 
     Each opening  60  for the pivot bearing stopper  40  or  40 ′ has slits or groove-shaped recesses  62 ,  62 ′ for introducing the locking pins or trunnions  50 ,  50 ′, these recesses being placed opposite as represented in FIG.  1 . The size of these slits or groove-shaped recesses  62 ,  62 ′ approximately corresponds to the length and to the thickness of the locking pins or trunnions  50 ,  50 ′. These slits or groove-shaped recesses  62 ,  62 ′ are formed opposite in the area of the edges  61  limiting the openings  60  in the side walls  13 ,  14  of the package body. It is also possible to provide, for only an unique locking pin or trunnion on the stopper bodies  41  of the pivot bearing stoppers  40 ,  40 ′. The opening  60  for the pivot bearing stopper then shows only one slit or groove-shaped recess. 
     For holding the hollow cylindrical holding device  30  with the rolled-up product in the inner space  19  of the package body  10  of the package  100 , the pivot bearing stoppers  40 ,  40 ′ are stuck into the openings in the side walls  13 ,  14  so that their locking pins or trunnions  50 ,  50 ′ can also be stuck through the slits or groove-shaped recesses  62 ,  62 ′ on the openings  60 . When the ring-shaped disks or collars  42  on the stopper bodies  41  of the two pivot bearing stoppers  40 ,  40 ′ are moved to take their bearing onto the outer wall faces of the side walls  13 ,  14 , after having inserted the pivot bearing stoppers in direction of the arrow X, a torsion of the pivot bearing stoppers in direction of the arrow X 1  takes place to the point that, due to the rotation, the pivot bearing stoppers  40 ,  40 ′ are fixed on the side walls  13 ,  14  of the package body  10  (FIG.  2 ). Since the distance between the locking pins or the trunnions  50 ,  50 ′ and the ring-shaped disks or collars  42  of the stopper body  41  corresponds to the material thickness of the package body  10  or of the side walls  13 ,  14 , both pivot bearing stoppers  40 ,  40 ′ are fixed in their position so that the hollow cylindrical holding device or the cardboard roll which is stuck onto the stopper bodies  41  of both pivot bearing stoppers  40 ,  40 ′ is held on the pivot bearing stopper  40 ,  40 ′ in such a manner that this hollow cylindrical holding device  30  cannot chafe laterally on the side walls  13 ,  14  of the package body and stick because of the adhesive when the strip-shaped or band-shaped product  20  rolled up on the hollow cylindrical holding device  30  is, for example, a self-adhesive foam plastic strip. Due to this constructional configuration, a distance piece of the hollow cylindrical holding device  30  with the rolled up product  20  to the side walls  13 ,  14  is achieved. 
     The ring-shaped disk or collar  42  of the stopper body  41  of each pivot bearing stopper  40 ,  40 ′ can additionally be provided with a foil to be sticked from outside which projects over the edge of the ring-shaped disk or collar  42  and which is sticked with the projecting section to the outer wall face of the side wall  13  or  14  of the package body  10  so that it prevents the pivot bearing stopper  40 ,  40 ′ from a further rotation movement.