PIECE IN TOSCO AND BOX OF CARTON FOR WRAPPING
FIELD OF THE INVENTION The present invention relates to a blank and cardboard box for wrapping. More particularly, the invention relates to a blank piece and carton box for wrapping, for packaging items such as cans of foodstuffs, for example yogurt, in which the base of the article protrudes through an opening in the base of the article. the cardboard box. Background of the Invention It is already known to provide cartons for wrapping, to pack such articles. In US 2 926 781 to Dick ens et al, a cardboard box for packaging a pair of items such as food jars is described, in which a pair of openings are provided, through which the upper part of the jars can protruding, the blank is additionally provided with openings in the side walls through which the labels of the jar can be observed. US 3 189 215 to Currie discloses a carton box for wrapping, for packing bottles, with slotted openings extending across the width of the top wall and arranged to accommodate the necks of two bottles. When the cardboard boxes Ref. 149241 for wrapping are placed in a vertical position, in which a portion of the article or articles to be packed is able to project through one of the walls of the carton, it is often difficult ensure that the cardboard box is placed in the vertical position with the side walls of the same height, when the ends of the blank are side walls which are to be held together and so that the upper and lower walls of the base the cardboard box are parallel. The present invention seeks to overcome or at least reduce the problems of the prior art. SUMMARY OF THE INVENTION A first aspect of the present invention provides a carrier of the wrapping article, for packaging an article such as a food product canister, for example, the carton comprises opposite walls of the interconnected base and top. by opposite side walls, whereby a tubular structure is formed. An opening is provided in the section of the base wall to accommodate a portion of the article. A reinforcing edge is marked from the base wall portion to define the opening or bending to act as a spacer, whereby the upper wall and the base wall are caused to be spaced a certain distance, the reinforcing edge is extends towards, and is articulately connected to, one of the sections that form the side wall. Preferably, the first section of the side wall is a holding flap, such a flap is fastened to a section of the outer side wall. The distance between the free flange of the fastening tab and the fold line of the reinforcing edge is preferably less than the distance between the free flange and the fold line of the fastening tab. According to an optional feature of this aspect of the present invention, the reinforcing edge extends to a projection of the article or to a section opposite the section of the base wall. A second aspect of the present invention provides a blank for forming a wrapping carrier, for packaging an article such as a food product can, for example, the blank comprising a first upper section, a first section of the side wall, a section of the base wall and a second section of the side wall hingedly connected together in series to form a tubular structure. An opening is provided in the section of the base wall to accommodate a portion of the article where a reinforcing edge is marked from the base section to define the opening and thus bent in an armed condition to act as a spacer thereby causes the sections of the upper wall and the base to be spaced a predetermined distance, the reinforcing edge extends towards the fastening flap and is hingedly connected to the fastening flap. The embodiment may further comprise a fastening flap hingedly connected to the section of the base wall. According to an optional feature of the second aspect of the present invention, the distance between the free flange of the clamping fin and the bending line of the reinforcing edge is less than the distance between the free flange and the bending line of the reinforcement edge. fastening flap. A third aspect of the present invention provides a carrier of the wrapping article, for packaging an article, for example a primary carton, the carton comprises opposite and base walls, opposite, interconnected by first and second side walls to form a tubular structure. An opening is marked from the base wall to receive a protruding portion of the article where the opening extends towards the section adjacent the upper wall to facilitate folding of the upper wall over the projecting portion during the construction of the carton. Optionally, the section adjacent to the upper wall is a fastening fin arranged to hold the upper wall to one of the first or second side walls. Preferably, the holding flap is positioned on the outer surface of the side wall and a portion of the side wall is positioned in the opening for coupling the article in the opening. According to a fourth aspect of the present invention there is provided a blank for the formation of a carrier of the wrapping article, for packaging an article such as a pouch for example, the blank comprises in series, a first length of the side wall, a section of the base wall, a second section of the side wall, a section of the top wall and a fastening tab, an opening is marked from the upper wall section to receive a protruding portion of the box of cardboard in use. The opening extends towards a section adjacent the section of the upper wall to facilitate the folding of the section of the upper wall above the projecting portion during the folding of the blank to form a cardboard box. Preferably, the adjacent section is the attachment tab. A fifth aspect of the present invention provides a method of forming a cardboard box for wrapping comprising a first section of the side wall, a second section of the side wall, a section of the upper wall and a fastening tab, interconnected hinged in series to form a tubular structure, the section of the upper wall has an opening for receiving the article marked therefrom and extending towards the fastening tab, the method comprises the steps of: i) introducing the article to the cardboard box; ii) folding the section of the upper wall and the fastening tab around a first fold line that articulately interconnects the second section of the side wall; and iii) introducing a protruding portion of the article into the extended portion of the opening while the upper wall and the fastening tab are bent, whereby the fastening tab is allowed to free the article. Preferably, the method can further comprise the step prior to step (ii) of placing the article on the upper part and folding the base wall and the second side wall around the article. The method of the fifth aspect may further comprise the step of folding a reinforcing edge out of the plane of the base section before the bending and insertion step and the step of bringing the reinforcing edge into butt contact on a projection of the article. or on the section of the upper part before the folding of the securing flap towards the opposite section. BRIEF DESCRIPTION OF THE DRAWINGS Exemplary embodiments of the invention will now be described, by way of example only, with reference to the appended drawings, in which: Figure 1 is a plan view of a blank piece for folding a cardboard box according to one embodiment of the present invention; Figures 2 and 3 are perspective views of the blank in Figure 1 during the successive steps of the article loading procedure vertically in the carton with the carton and the articles inverted; Figure 4A is a perspective view of the carton formed from the blank in Figure 1 in a loaded and fully assembled condition; Figure 4B is a cross-sectional view of the carton shown in Figure 4A through X-X; Figure 5 is a blank for the formation of a cardboard box according to a second embodiment of the present invention; Figure 6 is a perspective view of the blank in Figure 5 illustrating a step of the positioning procedure in the vertical position of the carton, with the carton and articles in an inverted state; Figure 7 is a perspective view of the carton formed from the blank in Figure 5 in a loaded and fully assembled condition;
Figure 8 is a plan view of the blank for the formation of a cardboard box according to a third embodiment of the present invention; Figure 9 is a perspective view of the blank in Figure 8 in a step of the method of placing the cardboard box in the vertical position, with the cardboard box and the articles shown in an inverted state; and Figure 10 is a perspective view of a cardboard box formed from the blank in Figure 8 in a loaded and fully assembled condition. Detailed Description of the Preferred Modes With reference to the first embodiment of the invention as illustrated in Figures 1 to 4 and in particular in Figure 1, there is illustrated a blank 10 of cardboard or such a foldable sheet material , to form a cardboard box for wrapping. The embodiment comprises a plurality of sections to form an upper wall, a base and opposite side walls. In this embodiment, the blank 10 comprises in series, a section of the base wall 14, a first section of the side wall 16, the section of the upper wall 18 and a second section of the side wall 20 interconnected in series along fold lines 24, 26 and 28 respectively. Preferably, the embodiment comprises an internal sidewall section or the holding tab 12 hingedly connected to the base wall section 14 along the fold line 20. The embodiment may further comprise one or more aperture structures. In Figure 1 there is shown a pair of opening structures 30 and 32 which are marked from the base wall section 14 and, in this embodiment, extend towards the holding flap 12. Each structure is substantially identical and therefore only the structure of the opening 30 is described in further detail. The embodiment further comprises a spacer (or reinforcing) edge 34, marked from the base wall portion 14 and extending towards the spacer flap 12 to interrupt the fold line 22. The spacer edge 34 is hingedly connected to the flap. of clamping 12 by the fold line 38. The edge is defined by the cut line 58, with each end of the cut line 58 being connected to the fold line 38 by mutually parallel, straight cut lines 59a and 59b , relatively short. Of course, the position of the cutting lines is not limiting and in some embodiments the cutting lines 59a and 59b are eliminated. The end of the edge 34 remote from the fold line 38, in this embodiment, is substantially parallel to the fold line 38 to define a portion for engaging the projection of an article or a section of the article carrier. The opposing pairs of the retaining structures 42, 44; 46, 48 of the article are preferably provided along bending lines 26 and 28 respectively, the structures are arranged to interrupt the bending lines mentioned above. Each retention structure is substantially identical, and therefore only the structure 46 is described in further detail. It can be seen from Figure 1 that the structure 46 comprises a protruding portion 50 of the section of the upper wall 18 arranged to interrupt the fold line 28 and which is defined by the curved cutting line 52. The structure further comprises a pair of cutting lines 54 and 56 parallel, spaced, which, in this embodiment, are arranged substantially perpendicular to the fold line 28, to extend from the curve cutting line 52 and end down partially on the second section of the wall lateral 20. The cutting lines 54 and 56 thereby define a portion 57 of the edge. It was contemplated that the carton of any of the embodiments of the present invention be formed by a series of consecutive gluing and bending operations in a straight line machine so that the carton is not required to be rotated or inverted. to complement its construction. The bending process is not limited to that described later and can be altered according to the particular manufacturing requirements. It can be seen from Figure 2, in which the carton and the articles A are inverted for the purpose of providing clarity, that the section of the upper wall 18 is placed so as to be superimposed on the flat upper face of the articles A. All references to the directions are going to be understood as if the piece in rough and the articles were in a vertical state. The section of the upper wall 18 is dimensioned, in this embodiment, in such a way that the portions F of the projection of the articles A extend beyond the fold lines 26 and 28. The spacing edges 34 are then folded downwards. out of alignment with the holding flap 12 whereby they reveal the opening 36 completely. Subsequently, the first section of the side wall 16 is bent inward out of alignment with the section of the upper wall 18 and the section of the base wall 14 is bent inwardly and upwardly around the fold line 24 out of alignment with the first section of the side wall 16. The elongated nature of the openings 36 makes it possible for the section of the base wall 14 to be bent on the base of the articles A without being stuck on the holding flap 12. Subsequently, the flap fastener 12 is bent up and inwardly around the fold line 22 and the second section of the side wall 20 is bent down and inwardly around the fold line 28 as shown in Figure 3. Thus, the spacer edges 34 are guided between the second section of the side wall 20 and the side of the respective article A and are thus brought into engagement with the underside of the portions F of the projection of the articles. A to restrict the relative movement of article A shown in Figure 4B. In some embodiments, the outer face of the fastening flap 12 is brought into frontal contact relation with the inner face of the second side wall section 20. The sections 12 and 20 are preferably held together using gluing or other known suitable means in art. The inward bending of the first and second sections 16 and 20 of the side wall causes the portions F of the projection to project laterally beyond fold lines 26 and 28 and the thickness of the portions of the projection causes the protruding portions. 57 fold out slightly beyond the plane of the first and second sections 16 and 20 of the side wall. The edges 57 are thus coupled under the projections F, shown in Figures 4A and 4B, and assist in the retention of the articles A within the carton. The carton is now in a loaded and fully assembled condition as illustrated in Figure 4. It will be apparent that the spacer edges 34 are dimensioned such that during the bending operation, their placement under the projections F ensures that the The free end of the second section 20 of the side wall is substantially co-extensive with the fold line 28 when the clamping tab 12 is brought into a frontal contacting relationship with the second section 20 of the side wall, thus ensuring that, in In this embodiment, the sections 14 and 18 of the base and of the upper part are substantially parallel because the first side wall 16 is of the same width W as the second resulting wall formed holding the wing 12 and the second section 20 of the side wall. The alternative arrangement for achieving such a parallel arrangement with a relatively small coupling fin requires that the fin be secured to the outer face of the second section 20 of the side wall. The disadvantage of such an arrangement is that the surface of the side wall is interrupted and therefore the display of information and / or advertising signals is compromised. In other embodiments, the free edge of the spacer edge 34 can make butt contact with the inner surface of the top portion to achieve the same effect. This is particularly useful for non-salient items. It is not necessary for the free edge of the section 20 of the side wall to be co-extensive with the fold line 22, for example where the section of the side wall is narrower and the clamping fin is wider, then the spacer edge could be used to determine the position of the overlap for the clamping fin and the second section of the side wall . Turning now to the second embodiment of the invention as illustrated in Figures 5 to 7 and in particular to the blank as shown in Figure 5, the first and second embodiments are similar and therefore similar numbers have been used. , where it was possible, for similar parties, with the addition of the prefix "1". Only the differences between the second modality in relation to the first have thus been described subsequently. The second embodiment of Figure 5 differs from the first embodiment broadly with respect to the structures of the opening. In this embodiment, due to the shallow nature of the articles A, the structures 130 and 132 of the opening are completely contained within the section of the base wall because it is not necessary for the openings 136 to be elongated to prevent the fin from Clamp 112 is clamped on the basis of article A. As can be seen from Figure 6, the vertical positioning procedure is substantially identical to that of the first embodiment and, as above, the edges 134 act as a spacer to ensure that the base and top walls are parallel as shown in Figure 7. - Turning now to the third embodiment of the invention as illustrated in Figures 8 to 10 and in particular to the blank as shown in Figure 8 : again the piece in rough of the third modality is similar to the first modality and similar numbers have been used where it was possible for the similar parts, with the addition prefix ion "2". Only the differences between the third modality in relation to the first have been described subsequently. As can be seen from Figure 8, the blank in Figure 8 differs from that in Figure 5 in that the spacer edge 234 does not follow the cut line 258 that defines the opening 236 instead of the side edges of the opening 236. the same are defined by the extensions of the cut lines 259a and 259b. The method of vertical positioning of the blank to form the complete cardboard box of the third embodiment is substantially identical to the vertical positioning procedure of the first and second embodiments and is shown in Figure 9. The box of fully loaded and assembled cardboard, formed from the blank in Figure 8, is shown in Figure 10. It is contemplated that the invention may be applied to a carton for wrapping or a carton for loading in the ends only with minor amendments to the structure. For example, the reinforcement edge could be marked completely from the fastening tab in these cardboard boxes without openings for the article. The width of the fastening flap (and therefore the reinforcing edge) can be adjusted according to the size of the cardboard box. It will be recognized that when used herein, the directional references such as "upper part", "base", "extreme", "lateral", "upper", "lower", "internal" and "external" do not limit the respective sections. to such orientation, but only serve to distinguish these sections from each other. Any reference to the articulated connection should not be interpreted as necessarily referring to a single fold line only; it is indeed contemplated that the articulated connection may be formed from one or more of one of the following, a marking line, a brittle line or a fold line, without departing from the scope of the invention. It should be understood that numerous changes can be made within the scope of the invention. For example, the carton can be adapted to accommodate only one item or more than two items. However, the size and shape of the openings and sections can be adjusted according to the particular requirements of the articles to be packed and other known article retention means can be employed. The present invention and its preferred embodiment relate to a carton which is shaped to provide satisfactory stiffness to retain articles such as primary containers safely but with a degree of flexibility. The shape of the blank piece minimizes the amount of cardboard required for the carton. The items can be applied to the 'carrier by hand or by an automatic machinery. It is anticipated that the invention can be applied to a variety of types of trays or cartons and is not limited to those of the kind that can be wrapped. It is noted that in relation to this date, the best method known to the applicant to carry out the aforementioned invention, is that which is clear from the present description of the invention.