Patent Abstract:
The invention relates to a folded box comprising two principal wall sections ( 5, 9 ), which are joined on one side and can be interconnected on the opposing side, for example by means of a flap ( 39 ), to form a substantially tubular body, whose ends can be sealed. To reduce production costs, a lateral wall section ( 11, 12 ), with ends that taper to a point, is configured in at least one of the two principal wall sections ( 5, 9 ).

Full Description:
BACKGROUND OF THE INVENTION 
   The invention concerns a folded box, in particular of carton, comprising two principal wall sections which are connected to each other on one side, in particular through a principal folding line, and can be connected to each other on the opposite side e.g. by a flap, to form a substantially tubular body whose ends can be closed. The invention also concerns a folded box of a one-piece blank. 
   Conventional cushioned packages have closing sections which can be folded on top of each other to close the cushioned package. The closing sections of cushioned packages simultaneously serve to shape and keep the shape of the substantially tubular body. The closing sections of cushioned packages are e.g. elliptical. The non-rectangular contour of the closing sections prevents use of a rectangular blank for cushioned packages. For production, an intermediate section is therefore required between two blanks. The non-rectangular contour of the closing sections of cushioned packages increases the material consumption since the material between the closing sections of two different blanks must be removed. Moreover, closing of the cushioned packages by hand is relatively demanding since the closing sections must be folded successively against each other. Moreover, cushioned packages cannot be closed in a fluid-tight fashion through welding or sealing. 
   It is therefore the underlying purpose of the invention to provide a blank, which can be produced in an easy and inexpensive fashion, for a folded box which can be closed by hand. A further object of the invention consists in providing a folded box of a one-piece blank of simple construction which can be produced in an inexpensive fashion. The inventive folded box shall be easy to close manually and also by a machine. 
   SUMMARY OF THE INVENTION 
   This object is achieved in a one-piece, in particular, rectangular blank for a folded box, in particular of carton, comprising two main wall sections which are connected to each other on one side, in particular by a principal folding line and can be connected to each other on the opposite side e.g. by a flap to form a substantially tubular body, whose ends can be closed, in that in at least one of the two principal wail sections, a side wall section with tapering ends is formed. The side wall section gives the tubular body a stable spatial shape. 
   A preferred embodiment of the blank is characterized in that the side wall section is formed by two folding lines which are separated from each other in the center and merge into each other at the ends. The folding lines provide the tubular body with a polygonal cross-section. Usually, two side wall sections are disposed opposite to each other to provide the tubular body with a rectangular cross-section in the center. 
   A further preferred embodiment of the blank is characterized in that the two folding lines forming the side wall section are disposed parallel to each other in the central region, which gives the tubular body a the shape of a right parallelepiped in the central region. 
   A further preferred embodiment of the blank is characterized in that the side wall section has triangular ends providing the cross-section of the tubular body with particular stability. 
   A further preferred embodiment of the blank is characterized in that the side wall section has the shape of an ellipse which provides the folded box produced from the blank with an optically pleasant shape. The cross-section of the tubular body decreases from the center to the outside. 
   A further preferred embodiment of the blank is characterized in that the principal wall sections on the tapering ends of the side wall section merge into closing sections. The closing sections abut each other when the folded box is assembled. This greatly facilitates closing of the folded box by hand and by machine. 
   A further preferred embodiment of the blank is characterized in that closure folding lines are formed between the principal sections and the closing sections. The closure folding lines permit surface abutment of the closing sections providing fluid-tight closure of the folded box. 
   A further preferred embodiment of the blank is characterized in that the closure folding lines are disposed substantially transversely to the at least one side wall section and the distance between the closure folding lines and the associated edge of the respective closing section is not constant but varies. This ensures safe closure of a package produced from the blank. 
   A further preferred embodiment of the blank is characterized in that a side wall section with tapering ends is formed in both principal wall sections and that a continuous folding line is disposed between and substantially parallel to the side wall sections. The continuous folding line ensures folding of the tubular body for storage or transport. The continuous folding line also facilitates machine production on conventional gluing machines and facilitates insertion of products. 
   A further preferred embodiment of the blank is characterized in that the distance between the closure folding lines and the associated edge of the respective closing section increases starting from the side wall sections to the inside and to the outside. Abutting closing sections are thereby held together in the erected state of the folded box. The course of the closure folding lines produces tension in the erected folded box which keeps the folded box closed. 
   A further preferred embodiment of the blank is characterized in that the distance between the closure folding lines and the associated edge of the respective closing section increases linearly starting from the side wall sections to the inside and to the outside. The resulting straight closure folding lines are advantageous in that they are easy to produce. 
   A further preferred embodiment of the blank is characterized in that the closure folding lines are curved to the inside like a circular arc, relative to the blank. Experiments carried out within the scope of the present invention showed that a slightly curved shape of the closure folding lines is particularly advantageous. The curvature of the closure folding lines ensures that the closing sections snap in when a folded box produced from the blank, is closed. 
   A further preferred embodiment of the blank is characterized in that the distance between the closure folding lines and the associated edge of the respective closing section is constant in the region within the two side wall sections and increases to the outside in the regions outside of the two side wall sections. The closing sections are thereby pretensioned in the closing direction in the assembled state of the folded box. Pretensioning ensures snapping in or convergence of the closing sections when the folded box is closed. 
   A further preferred embodiment of the blank is characterized in that on the side, opposite to the continuous folding line, of one of the side wall sections, a flap is formed on the associated principal wall section by a further folding line which is disposed parallel to the continuous folding line. The flap servers to connect the two wall sections to each other. 
   A further preferred embodiment of the blank is characterized in that the continuous folding line and the further folding line substantially coincide when the folded box is assembled. This ensures folding of the blank even when the two wall sections are connected to each other on two sides to form the tubular body. 
   A further preferred embodiment of the blank is characterized in that an outlet funnel is provided on one of the tapering ends of the side wall section. The outlet funnel serves for pouring out a fluid located in the closed folded box. The outlet funnel may, of course, also be used for filling in a fluid depending on size and shape. 
   A further preferred embodiment of the blank is characterized in that the outlet funnel is formed by means of five outlet funnel folding lines which are formed on the tapering end of the side wall section. The five folding lines ensure repeated opening and closing of the outlet funnel when the folded box is erected. 
   A further preferred embodiment of the blank is characterized in that the distance between the outlet funnel folding lines from each other decreases to the associated tapering end of the side wall section which guarantees funnel-shaped widening of the outlet funnel to the outside. 
   A further preferred embodiment of the blank is characterized in that a triangular projection with tip pointing to the outside is disposed in the region of the outlet funnel on the two associated closing sections. The triangular projection ensures, in connection with a centrally disposed outlet funnel folding line, precise pouring out. 
   A further preferred embodiment of the blank is characterized in that a closing flap is provided on the outside of the outlet funnel which can be separated from the two bordering closing sections by at least one perforation line. The closing flap serves to keep the outlet funnel closed. When the closing flap is removed, the outlet funnel can be opened. 
   The above-stated object is achieved in a folded box of a one-piece blank, in that the folded box has one body in the assembled state which tapers to the outside with two ends and has a substantially rectangular cross-section in the center. The shape of the folded box therefore resembles a plastic bag welded at the ends. A plastic bag obtains its shape by the solid content. The shape of the inventive folded box is determined by the folding lines. The inventive folded box is advantageous in that it can be supplied in a flat state. Moreover, it has its own body whose size and shape are determined without product, and a functioning closing unit. It can be erected manually and also by a machine. The inventive blank can be processed on conventional production machines without additional equipment. The folded boxes can be produced in many variants, e.g. as carrier package or with particular features such as closing means and tearing techniques. 
   A preferred embodiment of the folded box is characterized in that the body has two outwardly tapering side wall sections. The side wall sections provide the erected folded box with stability. Shaping of the side wall sections provides the erected folded box with e.g. the shape of a right parallelepiped with two opposite tapering ends. 
   A further preferred embodiment of the folded box is characterized in that two flat closing regions are formed on the outwardly tapering ends of the body. The flat closing regions permit fluid-tight closure of the folded box e.g. by welding. The closing regions also permit manual closure and re-opening of the folded box. The specific arrangement of the closure folding lines ensures snapping in and holding together of the closure regions without having to use other techniques or auxiliary means. The closing regions may also be sealed or glued. 
   A further preferred embodiment of the folded box is characterized in that the principal and side wall sections are mutually separated from each other only by a folding line. This single folding line between each principal wall section and the joining side wall section provides the erected folded box with its defined shape. 
   A further preferred embodiment of the folded box is characterized in that a cut is provided in at least one of the closing sections into which a flap can engage which is formed on the closing section which abuts the closing section with the cut when the folded box is erected. The flap and the cut facilitate closing of the erected folded box. When the flap engages in the associated cut, the two abutting closing sections are fixed relative to each other. 
   This closing mechanism is advantageous in that it is easy to realize since no additional fastening means are required and repeated opening and closing of the folded box is ensured. 
   A further preferred embodiment of the folded box is characterized in that the cut has the shape of a circular arc which is curved inwardly relative to the blank. This shape of the cut has proven to be particularly advantageous in practice. 
   A further preferred embodiment of the folded box is characterized in that the flap is formed by a cut which has the shape of a circular arc which is curved inwardly relative to the blank. This shape of the cuts ensures simple closing of the folded box when it is erected. 
   A further preferred embodiment of the folded box is characterized in that in at least one closing section at least one flap is formed which abuts on an adhesive surface, formed on an abutting closing section and covered by the flap, when the folded box is erected. As long as the foldable flap abuts the adhesive surface, the associated closing sections also abut each other and the folded box is closed. When the flap is folded, the connection to the closing section with adhesive surface is released and the abutting closing sections can be removed from each other. 
   A further preferred embodiment of the folded box is characterized in that the adhesive surface is delimited by a groove. The groove extends preferably only in an upper layer of the blank. The groove ensures defined pulling out of the upper blank layer which provides on the one hand that the original seal cannot be reproduced. On the other hand, the outer side of the closing section provided with the adhesive surface remains untouched also after removal of the upper blank layer, i.e. the optical impression is not impaired. 
   One substantial advantage of the inventive folded box consists in that a one-piece, square blank can be used. This permits production of folded boxes without new technical equipment. The simple and quick closing of the folded box due to the distance between the closure folding lines and the associated edge of the closing sections ensures that the folded box can be made flat again after use. 
   In the flat state, the folded box can either be supplied to a recycling cycle or be manually or mechanically erected again. The possibility of welding or sealing the closing sections of the folded box is important in particular for food and in general for powdery and liquid products. The closing sections can also be formed as handles or have a so-called Euro hole. 
   Due to the particularly simple handling, the inventive folded box is particularly well suited as gift wrapping, e.g. for dessous, accessories or jewellery. The folded box is also suitable for accommodating sweets, household goods, office equipment or food. Since the folded box can be tightly sealed, it is also suited to accommodate powder and liquids. The inventive folded box finally has a particularly pleasant design when it is erected. The pleasant design and the flatly tapering closing flaps make the folded box suitable also for display in a decoration wall. 
   In the embodiment with the slightly curved closure folding lines, a tension is generated which ensures snapping in of the closing sections when the folded box is manually closed. The outlet funnel integrated in the closing sections can be closed again after opening thereby protecting the content of the folded box from vermins and dirt also after opening and handling is moreover facilitated. 
   The inventive blank can be provided with pre-glued points or be printed or punched by a machine and erected on a machine. In the latter case, the folding lines can also be eliminated. The package becomes more stable thereby and the package has no disturbing lines. The closing region can be displaced depending on the optics of the printed image. 
   Further advantages, features and details of the invention can be extracted from the following description which describes in detail different embodiments with reference to the drawing. The features mentioned in the claims and in the description may be essential to the invention either individually or collectively in arbitrary combination. 

   
     BRIEF DESCRIPTION OF THE DRAWING 
       FIG. 1  shows a top view onto a blank for a folded box according to a first embodiment; 
       FIG. 2  shows a top view onto a blank for a folded box according to a second embodiment with elliptical side wall sections; 
       FIG. 3  shows a top view onto a blank for a folded box according to a third embodiment; 
       FIG. 4  shows a perspective view of an erected folded box with handle and a window; 
       FIG. 5  shows a perspective view of an erected folded box with reclosable opening flap; 
       FIG. 6  shows a perspective view of an erected folded box with flap closure; 
       FIG. 7  shows a perspective view of an erected folded box with a breaking line in the center; 
       FIG. 8  shows a top view onto a blank for a folded box according to a fourth embodiment with circular arc-shaped curved closure folding lines; 
       FIG. 9  shows a top view onto a blank for a folded box according to a fifth embodiment with straight folding lines; 
       FIG. 10  shows a top view onto a blank for a folded box according to a sixth embodiment with an outlet funnel; 
       FIG. 11  shows a perspective view of an erected folded box with an outlet funnel as shown in the blank of  FIG. 10 ; 
       FIG. 12  shows a blank for a folded box according to a seventh embodiment with a closing flap; and 
       FIG. 13  shows a blank for a folded box according to an eighth embodiment with an original seal. 
   

   DESCRIPTION OF THE PREFERRED EMBODIMENT 
     FIG. 1  shows a top view of a rectangular blank  1 . A plurality of folding lines is disposed on the blank  1 . The folding lines may be folds, grooves, scratches or perforations. The folding lines form defined sections when the blank  1  is erected to a folded box. 
   The blank  1  comprises a principal section  5  having two partial sections  3  and  4 , and a principal section  9  having two partial sections  7  and  8 . The principal sections  5  and  9  are separated from each other by a principal folding line  10 . The principal sections  5  and  9  have the shape of rectangles abutting each other along their longitudinal sides. 
   The side wall section  11  is formed by two side wall folding lines  14  and  15  which extend parallel to each other in the central region and taper towards each other at the ends. At the tapering ends, the side wall folding lines  14  and  15  merge into terminating folding lines  22  and  23 . The side wall section  12  is delimited in the same fashion by two side wall folding lines  16  and  17  which extend parallel to each other in the center and merge at the end into terminating folding lines  24  and  25 . 
   The side wall section  11  is disposed between the partial sections  3  and  4  of the principal section  5 . The side wall section  12  is disposed between the partial sections  7  and  8  of the principal section  9 . The partial section  3  is delimited at two opposite sides by two closure folding lines  26  and  29 . The partial section  4  is delimited on two opposite sides by two closure folding lines  27  and  28 . The partial section  7  is delimited on two opposite sides by two closure folding lines  30  and  33 . The partial section  8  is delimited on two opposite sides by two closure folding lines  31  and  32 . 
   The partial section  8  is also delimited by the side wall folding line  17 , the closure folding lines  31 ,  32  and a terminating edge  35  of the blank  1 . The partial section  7  is delimited by the principal folding line  10 , the closure folding lines  30 ,  33  and the side wall folding line  16 . The partial section  4  is delimited by the principal folding line  10 , the closure folding lines  27 ,  28  and the side wall folding line  15 . The partial section  3  is delimited by the side wall folding line  14 , the closure folding lines  26 ,  29  and a terminating folding line  37 . 
   The terminating folding line  37  delimits a flap  39  on the side facing away from the partial section  3 . The flap  39  is divided by perpendicular cuts  71  and  72  into three flap sections  39   a ,  39   b  and  39   c . The flap  39  serves to connect the principal sections  5  and  9  to each other. When the principal sections  5  and  9  are connected to each other through the flap  39 , the terminating edge  35  of the blank  1  abuts the terminating folding line  37  thereby providing the blank  1  with a tubular shape when it is erected. 
   Eight closing sections  41 ,  42 ,  45 ,  46  and  44 ,  43 ,  48 ,  47  are formed on the longitudinal sides of the blank  1 . The closing sections  41  to  44  are formed on the principal section  5  and the closing sections  45  to  47  are formed on the principal section  9 . The closing section  41  is delimited by the longitudinal edge of the blank  1 , the terminating folding line  37 , the closure folding line  29  and the terminating folding line  22 . 
   The closing section  42  is delimited by the longitudinal edge of the blank  1 , the terminating folding line  22 , the closure folding line  28  and the principal folding line  10 . The closing section  43  is delimited by a longitudinal edge of the blank  1 , the terminating folding line  23 , the closure folding line  27  and the principal folding line  10 . The closing section  44  is delimited by the longitudinal edge of the blank  1 , the terminating folding line  23 , the closure folding line  26  and the terminating folding line  37 . 
   The closure section  45  is delimited by a longitudinal edge of the blank  1 , the principal folding line  10 , the closure folding line  33  and the terminating folding line  24 . The closing section  46  is delimited by the longitudinal edge of the blank  1 , the terminating folding line  24 , the closure folding line  32  and the terminating edge  35  of the blank  1 . The closure section  47  is delimited by a longitudinal edge of the blank  1 , the terminating folding line  25 , the closure folding line  31  and the terminating edge  35  of the blank  1 . The closing section  48  is delimited by the longitudinal edge of the blank  1 , the principal folding line  10 , the closure folding line  30  and the terminating folding line  25 . 
   The closure folding lines  27 ,  30  and  28 ,  33  extend parallel to the longitudinal edges of the blank  1 . The closure folding lines  26 ,  29  and  31 ,  32  extend non-parallel to the longitudinal edges of the blank  1 . Dotted lines  51 ,  52 ,  53  and  54  indicate that the distance between the closure folding lines  26 ,  29  and  31 ,  32  and the associated longitudinal edges of the blank  1  increases slightly providing snapping in of the abutting closing section when the folded box is closed. Moreover, the abutting closing sections are held in abutment when the folded box is closed. 
   For assembling the inventive folded box, the flap  39  formed on the principal section  5  is glued to the principal section  9  such that the terminating edge  35  coincides with the terminating folding line  37  which produces a flat configuration which can be erected to a tubular body with rectangular cross-section. 
   When the folded box is erected, the side wall sections  11  and  12  produce a rectangular cross-section in the center of the folded box. When the folded box is erected, the closing sections  41  and  42 ,  43  and  44 ,  45  and  46 ,  47  and  48  abut each other. The folded box can be closed with two fingers pressing together the closing sections in the region of the terminating folding lines  22 ,  24  and  23 ,  25 . 
   In the closed state, the abutting closing sections can be welded, glued or fastened to each other in another fashion. The inventive design of the closure folding lines  26 ,  29 ,  31  and  32  does not necessarily require mounting of the abutting closing sections to each other since the abutting closing sections are held together by the inventive design of the closure folding lines  26 ,  29 ,  31  and  32 . When the abutting closing sections are not mounted to each other, the erected folded box can be easily opened by moving apart the abutting closing sections. The folded box can be easily collapsed again. 
   In the embodiment shown in  FIG. 1 , the side wall folding lines  14 ,  15  and  16 ,  17  of the side wall sections  11  and  12  extend largely parallel to each other. The side wall folding lines  14  and  15 ,  16  and  17  meet only at the ends of the side wall sections  11  and  12 . 
   The embodiments shown in  FIGS. 2 and 3  resemble the embodiment shown in  FIG. 1 . Identical parts have identical reference numerals such that reference is made to  FIG. 1 . Below, only the differences between the individual embodiments are mentioned. 
   In the embodiment of the blank  1  shown in  FIG. 2 , the side wall folding lines  14 ′,  15 ′ and  16 ′,  17 ′ which form the side wall sections  11 ′ and  12 ′ are not disposed parallel to each other but elliptical. The erected folded box therefore has an elliptical cross-section between abutting closing sections. 
   In the embodiment of the blank  1  shown in  FIG. 3 , the side wall folding lines  14 ″,  15 ″ and  16 ″,  17 ″ of the side wall sections  11 ″ and  12 ″ are disposed parallel to each other and form one rectangle each with two folding lines  20 . Two folding lines  18  and  19  extend from the points of intersection between the folding lines  20  and the side wall folding lines  14 ″,  15 ″ and  16 ″,  17 ″ to the terminating folding lines  22  to  25 . The folding lines  18 ,  19  and  20  each form a triangle at the end of the side wall sections  11  and  12 . The tips of the triangles extend to the outside. The terminating folding lines  22  to  25  extend from the tips of the triangles. 
   In all three embodiments shown in  FIGS. 1 to 3 , five folding lines each intersect or meet at the tips of the tapering side wall sections  11  and  12 . This is an essential feature of the present invention. This feature obtains that the inventive folded box can be erected and collapsed again in a simple fashion. 
   In the embodiments shown in  FIGS. 1 and 2 , firstly the folding lines  14 ,  15 ,  28 ,  22  and  29 , secondly the folding lines  14 ,  15 ,  26 ,  23  and  43 , thirdly the folding lines  16 ,  17 ,  31 ,  25  and  30  and fourthly the folding lines  16 ,  17 ,  32 ,  24  and  33  merge in one point. In the embodiment shown in  FIG. 3 , firstly the folding lines  18 ,  19 ,  28 ,  22  and  29 , secondly the folding lines  18 ,  19 ,  27 ,  23  and  26 , thirdly the folding lines  18 ,  19 ,  31 ,  25  and  30  and fourthly the folding lines  18 ,  19 ,  32 ,  24  and  33  merge in one point. 
     FIG. 4  shows a perspective view of an erected folded box in accordance with a fourth embodiment. As shown in  FIG. 4  the partial sections  4  and  7  can be connected to each other in one piece in machine blanks without forming a folding line between them. The same is true for the closing sections  42  and  45 . A common opening  55  is formed in the closing sections  42  and  45  which serves as handle. The opening  55  may also have the shape of a Euro hole on which the erected folded boxes can be hung. 
   The embodiment shown in  FIG. 5  has an opening which can be re-sealed by an opening flap  58 . The opening provides access to the erected folded box from the outside without having to open the closing sections  42 ,  45  or  43 ,  48 . 
   In the embodiment shown in  FIG. 6 , the closing sections  42  and  45  are held in abutment on the associated closing sections by a locking flap  60 . When closing, the locking flap  60  is folded from the position shown in  FIG. 6  such that a projection  62  formed in the locking flap  60  at the end engages in a recess  63 . At the end of the closing sections  43  and  48 , a perforation line  61  is provided for opening the folded box. The perforation line  61  is formed between the closing sections  43 ,  48  and a section  65  in which the abutting closing sections are glued to each other. The folded box can be opened by tearing or cutting off the section  65 . 
   In the embodiment of  FIG. 7 , the center of the erected folded box has a perforation line  64  which serves as breaking line for opening the folded box. The closing sections  43  and  48  are held in abutment on their associated closing sections by a circular punching  66 . The closing sections  42  and  45  are held in abutment on their associated closing sections by grooves  68  and  69 . It is of course also possible to combine different types of closure. 
   The embodiments shown in  FIGS. 8 ,  9  and  10 , resemble the embodiment of  FIG. 1 . Identical parts have identical reference numerals such that reference is made to the description of  FIG. 1 . Only the differences between the individual embodiments are mentioned below. 
   In the embodiment shown in  FIG. 8 , the closure folding lines  26 ′ to  33 ′ are slightly curved to the inside. The slight curvature results in that the distance between the closure folding lines  26 ′ to  29 ′ and the associated outer edge of the respective closing section is not constant but decreases to the tips of the side wall section  11 . The same is true for the closure folding lines  30 ′ to  33 ′. This course of the closure folding lines  26 ′ to  33 ′ obtains that the width of the closing sections  41  to  44  and  45  to  48  decreases towards the terminating folding lines  22 ,  23  or  24 ,  25 . 
   In the embodiment shown in  FIG. 9 , the closure folding lines  26 ″ to  33 ″ are not slightly curved but straight. The distance between the closure folding lines  29 ″ to  33 ″ and the associated edge of the respective closing sections decreases towards the associated tips of the respective side wall sections  11 ,  12  as shown in the embodiment of  FIG. 8 . The width of the closing sections  41  to  48  is thereby decreased towards the respective terminating folding lines  22  to  25 . 
   In the embodiment shown in  FIG. 10 , the distance between the closure folding lines  26   a  to  33   a  and the associated edge of the respective closure sections is constant. Therefore, the closing sections have a constant width. For closing, the closing sections  42   a ,  43 ,  45  and  48  have adhesive surfaces  85  and  86 . The adhesive surfaces  85  and  86  serve to glue the closing sections which come into abutment when the erected folded box is closed. Gluing of the abutting closing sections permits a guarantee closure of the inventive folded box. 
   The corresponding closing sections may be sealed to each other instead of glued. For sealing, a lacquer to be applied to the closing sections is heated, wherein the closing sections are held in mutual abutment by means of pressure jaws. In a subsequent cooling process, the closing sections are permanently joined. 
   Two outlet funnel folding lines  74  and  75  are formed in the closing section  41   a . The outlet funnel folding lines  74  and  75  intersect in a point  90  which is disposed on the side wall folding line  14  slightly separated from the tapering end  92  of the side wall section  11 . The outlet funnel folding line  75  is disposed at a more acute angle to the terminating folding line  22   a  which forms a further outlet funnel folding line, than the outlet funnel folding line  74 . 
   The outlet funnel folding lines  76  and  77  are axially symmetrical to the outlet funnel folding lines  75 ,  74  relative to the terminating folding line  22   a  or outlet folding line. The outlet funnel folding lines  76  and  77  intersect at a point  91  which is disposed at the same level of the side wall section  11  as the point of intersection  90  of the outlet funnel folding lines  74  and  75 . 
   The points of intersection  90  and  91  are connected to each other via an outlet funnel folding line  93  which is slightly curved away from the tapering end  92 . The outlet funnel folding line  93  increases the opening cross-section of the outlet funnel. 
   A triangular projection  79  joins the region of the closing sections  41   a  disposed between the outlet funnel folding lines  75  and  76 . This triangular projection  79  forms an outlet channel when the outlet funnel is opened. 
   A closing flap  80  joins the closing sections  41   a ,  42   a  and the triangular projection  79 . The closing flap  80  is connected via perforated lines  81 ,  82 ,  83  and  84  to the closing sections  41   a ,  42   a  and the triangular projection  79 . An adhesive surface  87  is formed on the closing flap  80 , which connects the two halves of the closing flap  80 , formed by the terminating folding line  22   a  when the outlet funnel is closed. For opening the outlet funnel, the closing flap  80  must be torn off. The outlet funnel can then be opened by moving the outlet funnel folding lines  75  and  76  away from each other. 
     FIG. 11  shows a perspective view of an erected folded box from a blank similar to the blank of  FIG. 10 . The closing sections  41   a  and  46  have a recess  88  in the form of a so-called Euro hole. 
     FIG. 12  shows a blank similar to the blank of  FIG. 1 . Identical parts have the same reference numerals plus  100  such that reference is made to the description of  FIG. 1 . In the following, only the differences between the individual embodiments are mentioned. The flap  139  comprises in the embodiment shown in  FIG. 12  three separate flaps  139   a ,  139   b  and  139   c  which have different designs. The flap  139   a  is based on a partial section  103  and has the shape of a longitudinal rectangle which has two inclined sides. The flaps  139   b  and  139   c  are each based on the associated closing section  141  and  144  and have the shape of rectangles with one inclined side and a U-shaped section. 
   Moreover, in the embodiment of  FIG. 12 , a circular arc-shaped cut  201 ,  211  is provided in the closing sections  142  and  143  which is curved towards the associated partial section  104 . The ends  202 ,  203  and  212 ,  213  of the cuts  201  and  211  are also curved in a circular arc shape but in opposite directions to the associated cut. Moreover, the closing sections  146  and  147  have circular cuts  205  and  215  which are curved towards the associated partial section  108 . The curvature of the cuts  205  and  215  is slightly stronger than the curvature of the cuts  201  and  211 . The ends  206 ,  207  and  216 ,  217  of the cuts  205  and  215  are also curved in the shape of a circular arc but in the opposite direction to the cuts  205  and  215 . 
   The cuts  205  and  215  form flaps  208  and  218  whose contour is more curved than the cuts  201  and  211 . This ensures that the flaps  208  and  218  can engage well in the cuts  210  and  211  when the closing sections  142  and  146  or  143  and  147  come into abutment. Folding lines  204  and  214  which extend straight between the ends of the cuts  201  and  211  ensure easy opening of the cuts  201  and  211 . 
     FIG. 13  shows a blank which is similar to the blank of  FIG. 1 . Identical parts have the same reference numerals plus  300  such that reference is made to the description of  FIG. 1 . Only the differences between the individual embodiments are described below. 
   In the embodiment shown in  FIG. 13 , the partial sections  304  and  307  have a common window  401  which can be filled or backed with a transparent plastic foil. The window  401  serves to make the content of the erected folded box visible from the outside. 
   In the region of the point of intersection between the closing sections  342  and  345 , a flap  405  is cut out which is connected to the principal wall section  305  via a folding line. In the same way, a disposed flap  406  is cut out between the closing sections  343  and  348  which is also connected to the main wall section  305  via a folding line. The flaps  405  and  406  come in abutment on adhesive layers  412  and  413  provided in the connecting region between the flap  339   b  and the closing section  241  and the flap  339   c  and the closing section  344 , when the folded box is erected. The adhesive surfaces  412  and  413  are delimited by grooves  414  and  415  which extend only in the upper layer of the blank  301 . 
   When the flaps  405  and  406  abut on the associated adhesive surfaces  412  and  413  after erection of the folded box, the folded box is originally sealed. When the flaps  405  and  406  are folded, the upper layers of the blank  301  adhere to the flaps  405  and  406  within the grooves  414  and  415  together with the adhesive layers  412  and  413 . Renewed closing of the folded boxes with the flaps  405  and  406  is no longer possible. 
   The coinciding design of the closing sections provides among other thing the advantage that a plurality of in particular simple sealing possibilities can be applied. The closing sections can also be designed having different functions e.g. as Euro hole, pouring means, apportioning means or handles. The closing sections can also be provided with a decorative contour punching. 
   The inventive folded box combines the advantages of a plurality of closing possibilities, simple production, simple handling and reduced machine and tool costs in all regions. It also offers a plurality of possible applications and is suited for package anything. 
   The transition from the package body to the closing sections may be formed by a displaced or curved line whereby tension is generated in the erected state through which the closing sections are held in mutual abutment. Simple manual securing is possible through two circular arc-shaped cuts. 
   For presents, simple geometrical shapes can be punched out in the closing sections through which e.g. a cord or ribbon can be guided to close the folded box. 
   An original seal may be provided by connecting the abutting closing sections mechanically to each other by a hot setting adhesion point. This ensures that opening of the package will always damage it to prevent undesired manipulation and theft of the contents of the packing. 
   When the closing sections are rigidly connected by sealing, even liquid media can be kept in the erected folded box. The material of the blank must, of course, be suitable for accommodating the liquid or be provided with a corresponding coating. 
   It is pointed out that the principal folding line  10  and/or the terminating folding line  37  may be omitted in all embodiments depending on the production method.

Technology Classification (CPC): 1