Box and flat blank for making a box

Abstract

A box (10) comprises a base wall (11), a back wall (14), a front wall (15), a first side wall (12) and a second side wall (13) defining a housing volume (17), a cover (16) comprising a cover wall (18) foldable so as to close the housing volume (17) and to open the housing volume (17), a first back reinforcement appendage (22) comprising a first portion (24) integral with the first side wall (12) and a second portion (25) integral with the back wall (14), wherein the first portion (25) is integral with the second portion (25) and wherein the first portion (24) and the second portion (25) are superimposed on each other and turned towards the housing volume (17) when the cover (16) is closing the housing volume (17), a second back reinforcement appendage (23) comprising a first portion (26) integral with the second side wall (13) and a second portion (27) integral with the back wall (14), wherein the first portion (26) is integral with the second portion (27) and wherein the first portion (26) and the second portion (27) are superimposed on each other and turned towards the housing volume (17) when said cover (16) is closing the housing volume (17).

Description

[0001] Box and flat blank for making a box

[0002] DESCRIPTION

[0003] The present invention refers to a box and a blank for making a box. The present invention preferably refers to a box made of paper material with a cover and to a blank for making a box made of paper material with a cover.

[0004] Boxes made of paper material with a cover are widely used for shipping articles purchased remotely, for example through e-commerce platforms, in such a way as to deliver the purchased article directly to the buyer's home, concealing it during transport and also preserving it from any damage due to accidental impacts.

[0005] The Applicant has verified that these boxes of paper material, when used for shipping articles, are subject to impacts, rubs and pressures that could damage the box itself. In the event of damage to the box of paper material, the article contained therein could also be damaged, creating obvious problems for the buyer and the seller. In the case of alteration of the external appearance, however, the buyer's purchase satisfaction could be adversely affected, as such alteration of the external appearance of the box of paper material could lead the buyer to perceive a poor quality of the box of paper material and its content.

[0006] In the Applicant's experience, it is possible to increase the strength of the box of paper material to prevent possible damage or alterations to its external appearance by adopting some measures such as, for example, increasing the thickness of the paper material used to make the box, either or in combination by gluing reinforcing material to the box, either or in combination by making the box of paper material starting from several blanks of different thicknesses (in such a way as to increase the strength only in some zones of the box).

[0007] However, the Applicant has noted that these measures are in contrast with the need to use paper material thicknesses as reduced as possible to avoid using excessive amounts of paper material (for obvious reasons of environmental compatibility) and with the need to make the box starting from a single blank subjected to automated folding actions.

[0008] The Applicant has verified that by providing a box made of paper material in which the side walls of the box are integral (i.e. continuously connected) to the back wall of the box, the back wall of the box and the side walls can offer adequate structural strength thanks to the uninterrupted edges that are created between the side walls and the back wall.

[0009] The Applicant has perceived that the structural strength of the box can be further improved by providing the cover hinged to the box and by providing reinforcement structures at least at some of the junction zones of the side walls. The Applicant has also perceived that at the junction zones of the side walls, such reinforcement structures should not have appendages or tabs turned towards the outside of the box, both so as not to negatively affect the aesthetic appearance of the box, and to prevent such appendages or tabs from being accidentally lifted, torn or otherwise damaged during transport and use of the box.

[0010] The Applicant has found that by providing a first reinforcement appendage and a second reinforcement appendage each of which having two portions superimposed on each other and integral with two adjacent side walls of the box and by arranging the first reinforcement appendage and the second reinforcement appendage turned towards an internal volume of the box, it is possible to obtain adequate structural strength of the box without negatively affecting the aesthetic appearance of the box and without these reinforcement appendages being accidentally lifted, torn or otherwise damaged during transport and use of the box.

[0011] The present invention therefore concerns, in a first aspect thereof, a box.

[0012] Preferably, the box comprises a base wall, a back wall, a front wall, a first side wall and a second side wall defining a housing volume for an article.

[0013] Preferably, said first side wall and second side wall are arranged between said back wall and front wall.

[0014] Preferably, said back wall, front wall, first side wall and second side wall are integral with said base wall.

[0015] Preferably, the box comprises a cover comprising a cover wall integral with said back wall and foldable so as to close said housing volume and to open said housing volume. Preferably, said cover comprises a first auxiliary cover wall, a second auxiliary cover wall and a third auxiliary cover wall integral with the cover wall.

[0016] Preferably, the box comprises a first back reinforcement appendage comprising a first portion integral with said first side wall and a second portion integral with said back wall. Preferably, said first portion is integral with said second portion and said first portion and second portion are superimposed on each other and turned towards the housing volume when said cover is closing said housing volume.

[0017] Preferably, the box comprises a second back reinforcement appendage comprising a first portion integral with said second side wall and a second portion integral with said back wall.

[0018] Preferably, said first portion is integral with said second portion and said first portion and second portion are superimposed on each other and turned towards the housing volume when said cover is closing said housing volume.

[0019] Preferably, the box comprises a first cover reinforcement appendage comprising a first portion integral with said first auxiliary cover wall.

[0020] Preferably, the first cover reinforcement appendage comprises a second portion integral with said first portion and with said third auxiliary cover wall.

[0021] Preferably, said first portion and said second portion are superimposed on each other and turned towards said front wall when the cover is closing said housing volume.

[0022] Preferably, the box comprises a second cover reinforcement appendage comprising a first portion integral with said second auxiliary cover wall.

[0023] Preferably, the second cover reinforcement appendage comprises a second portion integral with said first portion and with said third auxiliary cover wall.

[0024] Preferably, said first portion and said second portion are superimposed on each other and turned towards said front wall when the cover is closing said housing volume.

[0025] The Applicant has further found that by making the first portion and the second portion of the first cover reinforcement appendage integral with each other and respectively integral with the first auxiliary cover wall and with the third auxiliary cover wall, the first cover reinforcement appendage is made integral with both the first auxiliary cover wall and the third auxiliary cover wall. In this way, the first cover reinforcement appendage does not have weakened sections that could jeopardize the structural rigidity of the first cover appendage. Furthermore, the mutual overlap between the first portion and the second portion of the first cover reinforcement appendage allows to further stiffen the cover at the junction zone between the first auxiliary cover wall and the third auxiliary cover wall. Furthermore, the fact that the first cover reinforcement appendage is made integral with the first cover auxiliary wall and with the third cover auxiliary wall dispenses with necessarily using adhesives or the like between the first cover reinforcement appendage, the first cover auxiliary wall and / or the third cover auxiliary wall.

[0026] Similarly, by making the first portion and the second portion of the second cover reinforcement appendage integral with each other and respectively integral with the second cover auxiliary wall and with the third cover auxiliary wall, the second cover reinforcement appendage is made integral with both the second cover auxiliary wall and the third cover auxiliary wall. In this way, the second cover reinforcement appendage does not have weakened sections that could jeopardize the structural rigidity of the second cover appendage. Furthermore, the mutual overlap between the first portion and the second portion of the second cover reinforcement appendage allows to further stiffen the cover at the junction zone between the second auxiliary cover wall and the third auxiliary cover wall. Furthermore, the fact that the second cover reinforcement appendage is made integral with the second cover auxiliary wall and with the third cover auxiliary wall dispenses with necessarily using adhesives or the like between the second cover reinforcement appendage, the second cover auxiliary wall and / or the third cover auxiliary wall.

[0027] The present invention concerns, in a second aspect thereof, a flat blank for making a box. Preferably, the blank comprises a central portion, a first side portion and a second side portion wherein said first side portion is connected to said central portion by a single first continuous longitudinal folding line and wherein said second side portion is connected to said central portion by a single second continuous longitudinal folding line.

[0028] Preferably, said central portion, said first side portion and said second side portion have an identical length;

[0029] Preferably, said central portion comprises a first panel, a second panel, a third panel and a fourth panel connected to each other by respective transverse folding lines, wherein said third panel is interposed between said first panel and said fourth panel and wherein when said box is in an upright form said first panel defines a base wall, said second panel defines a front wall, said third panel defines a back wall and said fourth panel defines a cover wall.

[0030] Preferably, said first side portion comprises a fifth panel connected to said first panel by the first continuous longitudinal folding line, wherein when said box is in an upright form said fifth panel defines a first side wall.

[0031] Preferably, said second side portion comprises a sixth panel connected to said first panel by said second continuous longitudinal folding line, wherein when said box is in an upright form said sixth panel defines a second side wall.

[0032] Preferably, said first side portion comprises a seventh panel of quadrilateral shape comprising a first portion connected to said fifth panel by a transverse folding line and comprising a second portion connected to said third panel by said first continuous longitudinal folding line, wherein said first portion is connected to said second portion and wherein said seventh panel comprises a single oblique folding line; said oblique folding line dividing said seventh panel into said first portion and said second portion.

[0033] Preferably, said second side portion comprises an eighth panel of quadrilateral shape comprising a first portion connected to said sixth panel by a transverse folding line and comprising a second portion connected to said third panel by said second continuous longitudinal folding line, wherein said first portion is connected to said second portion and wherein said eighth panel comprises a single oblique folding line, said oblique folding line dividing said eighth panel into said first portion and said second portion.

[0034] Preferably, when said box is in an upright form said seventh panel defines a first back reinforcement appendage and said eighth panel defines a second back reinforcement appendage.

[0035] Preferably, the first side portion comprises a fourteenth panel which, when the box is in an upright form, defines a first cover reinforcement appendage.

[0036] Preferably, the fourteenth panel comprises a first portion and a second portion.

[0037] Preferably, the second side portion comprises a fifteenth panel which, when the box is in an upright form, defines a second cover reinforcement appendage. Preferably, the fifteenth panel comprises a first portion and a second portion.

[0038] The expression “paper material” means, in the present description and in the subsequent claims, a paper or paper pulp based material in the form of single sheets or panels or sheets or panels superimposed on each other or interspersed with one or more corrugated sheets in which the ratio of weight to surface area (grammage) is between about 100 grams per square metre and about 650 grams per square metre.

[0039] The expression “made of a single sheet”, when referred to a wall, means, in the present description and in the subsequent claims, that said wall is made of a single panel, that is, it does not comprise panels superimposed on each other.

[0040] The expression “edge” between two walls means, in the present description and in the subsequent claims, the continuous line of intersection between two walls. To obtain an edge between two walls, these two walls must be integral with each other.

[0041] The expression “integral” when referred to two walls means, in the present description and in the subsequent claims, that the two walls are made in one piece, that is, the two walls are made from a single continuous piece and without interruptions or cuts of paper material.

[0042] The expression “height” when referred to the box or its parts, means a measurement along a direction perpendicular to the base wall of the box.

[0043] The expression “width” when referred to the box or its parts, means a measurement along a direction parallel to the base wall of the box and perpendicular to the first side wall of the box.

[0044] The expression “length” when referred to the box or its parts, means a measurement along a direction parallel to the base wall of the box and parallel to the first side wall of the box.

[0045] The expression “longitudinal” when referred to the blank or its parts, means a direction aligned with the continuous longitudinal folding lines of the blank.

[0046] The expression “transverse” when referred to the blank or its parts, means a direction perpendicular to the continuous longitudinal folding lines of the blank.

[0047] The expression “oblique” when referred to the blank or its parts, means a direction inclined both with respect to a longitudinal direction and with respect to a transverse direction.

[0048] The expression “width” when referred to the blank or its parts, means a measurement along a transverse direction.

[0049] The expression “length” when referred to the blank or its parts, means a measurement along a longitudinal direction.

[0050] The expression “folding line” when referred to the blank or its parts, means a possibly pre-weakened line along which a panel of the blank is folded during the formation of the box. A folding line does not comprise through cuts that cross the blank or its parts. The expression “quadrilateral shape” when referred to a blank panel, means a panel having four sides and four internal angles, in which each internal angle is less than 180°. The present invention may have, in both aspects discussed above, at least one of the preferred features described below. Such features may thus be present individually or in combination with each other, unless expressly stated otherwise, both in the box of the first aspect of the present invention and in the blank of the second aspect of the present invention.

[0051] Preferably the box is a box made of paper material.

[0052] Preferably the box is made with a single sheet of paper material.

[0053] Preferably, the base wall is made of a single sheet.

[0054] Preferably, said first back reinforcement appendage has a triangular shape and has a vertex placed at said base wall at least when said cover is closing said housing volume. Preferably, said second back reinforcement appendage has a triangular shape and has a vertex placed at said base wall at least when said cover is closing said housing volume. Preferably, said first portion of said first back reinforcement appendage is interposed between said first side wall and said second portion of said first back reinforcement appendage when said cover is closing said housing volume.

[0055] Preferably, said second portion of said first back reinforcement appendage is directly facing in said housing volume when said cover is closing said housing volume.

[0056] Preferably, said first portion of said second back reinforcement appendage is interposed between said second side wall and said second portion of said second back reinforcement appendage when said cover is closing said housing volume.

[0057] Preferably, said second portion of said second back reinforcement appendage is directly facing in said housing volume when said cover is closing said housing volume.

[0058] Preferably, said first back reinforcement appendage is arranged parallel to the first side wall when said cover is closing said housing volume.

[0059] Preferably, said first portion of the first back reinforcement appendage and said second portion of the first back reinforcement appendage are arranged substantially parallel to each other when said cover is closing said housing volume.

[0060] Preferably, said second back reinforcement appendage is arranged parallel to the second side wall when said cover is closing said housing volume.

[0061] Preferably, said first portion of the second back reinforcement appendage and said second portion of the second back reinforcement appendage are arranged substantially parallel to each other when said cover is closing said housing volume.

[0062] In one embodiment, preferably said first portion of said first back reinforcement appendage is interposed between said first side wall and said second portion of said first back reinforcement appendage even when said cover is opening said housing volume. In this embodiment, preferably, said second portion of said first back reinforcement appendage is directly facing in said housing volume even when said cover is closing said housing volume.

[0063] In this embodiment, preferably, said first portion of said second back reinforcement appendage is interposed between said second side wall and said second portion of said second back reinforcement appendage when said cover is closing said housing volume. In this embodiment, preferably, said second portion of said second back reinforcement appendage is directly facing in said housing volume when said cover is closing said housing volume.

[0064] In this embodiment, preferably, said first portion of said first back reinforcement appendage is glued to the first side wall.

[0065] In this embodiment, preferably, said second portion of said first back reinforcement appendage is glued to the first portion of said first back reinforcement appendage.

[0066] In this embodiment, preferably, said first portion of said second back reinforcement appendage is glued to the second side wall.

[0067] In this embodiment, preferably, said second portion of said second back reinforcement appendage is glued to the first portion of said second back reinforcement appendage.

[0068] The Applicant considers that in this embodiment it is possible to obtain adequate structural strength of the box without negatively affecting the aesthetic appearance of the box and without the reinforcement appendages being accidentally lifted, torn or otherwise damaged even when the box is in an open configuration.

[0069] In a further embodiment, preferably said first portion of said first back reinforcement appendage is aligned with the first side wall and also said second portion of said first back reinforcement appendage is aligned with the first side wall when said cover is opening said housing volume.

[0070] In this embodiment, preferably said first portion of said second back reinforcement appendage is aligned with the second side wall and also said second portion of said second back reinforcement appendage is aligned with the second side wall when said cover is opening said housing volume.

[0071] In this embodiment, preferably said first portion of said first back reinforcement appendage, said second portion of said first reinforcement appendage and said first side wall are coplanar when said cover is opening said housing volume.

[0072] In this embodiment, preferably said first portion of said second back reinforcement appendage, said second portion of said second reinforcement appendage and said second side wall are coplanar when said cover is opening said housing volume.

[0073] The Applicant considers that this embodiment allows easier and complete access to the housing volume when the cover is opening said housing volume.

[0074] Preferably, said first auxiliary cover wall is parallel to said first side wall and said second auxiliary cover wall is parallel to said second side wall. Preferably, said third auxiliary cover wall is parallel to said front wall when the cover is closing said housing volume.

[0075] Preferably, when the cover is closing said housing volume, said first side wall is interposed between said housing volume and said first auxiliary cover wall.

[0076] Preferably, when the cover is closing said housing volume, said second side wall is interposed between said housing volume and said second auxiliary cover wall.

[0077] Preferably, when the cover is closing said housing volume, said front wall is interposed between said housing volume and said third auxiliary cover wall.

[0078] Preferably, said first cover reinforcement appendage is arranged parallel to the third cover auxiliary wall both when said cover is closing said housing volume and when said cover is opening said housing volume.

[0079] Preferably, said first portion of the first cover reinforcement appendage and said second portion of the first cover reinforcement appendage are arranged substantially parallel to each other both when said cover is closing said housing volume and when said cover is opening said housing volume.

[0080] Preferably, said second cover reinforcement appendage is arranged parallel to the third cover auxiliary wall both when said cover is closing said housing volume and when said cover is opening said housing volume.

[0081] Preferably, said first portion of the second cover reinforcement appendage and said second portion of the second cover reinforcement appendage are arranged substantially parallel to each other both when said cover is closing said housing volume and when said cover is opening said housing volume.

[0082] Preferably, said second portion of said first cover reinforcement appendage is glued to the third auxiliary cover wall.

[0083] Preferably, said first portion of said first cover reinforcement appendage is glued to the second portion of said first cover reinforcement appendage.

[0084] Preferably, said second portion of said second cover reinforcement appendage is glued to the third auxiliary cover wall.

[0085] Preferably, said first portion of said second cover reinforcement appendage is glued to the second portion of said second cover reinforcement appendage.

[0086] The Applicant considers that the first cover reinforcement appendage and the second cover reinforcement appendage are capable of increasing the structural strength of the cover.

[0087] Preferably, said second portion of said first cover reinforcement appendage is interposed between said third auxiliary cover wall and said first portion of said first cover reinforcement appendage both when said cover is closing said housing volume and when said cover is opening said housing volume.

[0088] Preferably, said second portion of said second cover reinforcement appendage is interposed between said third auxiliary cover wall and said first portion of said second cover reinforcement appendage both when said cover is closing said housing volume and when said cover is opening said housing volume.

[0089] Preferably, the box comprises a first front reinforcement appendage comprising a first portion integral with said first side wall.

[0090] Preferably, said first front reinforcement appendage comprises a second portion integral with said first portion and with said front wall.

[0091] Preferably, said first portion and said second portion are superimposed on each other and turned towards said housing volume both when said cover is closing said housing volume and when said cover is opening said housing volume.

[0092] Preferably, said first front reinforcement appendage is arranged parallel to the front wall both when said cover is closing said housing volume and when said cover is opening said housing volume.

[0093] Preferably, said first portion of the first front reinforcement appendage and said second portion of the first front reinforcement appendage are arranged substantially parallel to each other both when said cover is closing said housing volume and when said cover is opening said housing volume.

[0094] Preferably, the box comprises a second front reinforcement appendage comprising a first portion integral with said second side wall.

[0095] Preferably, said second front reinforcement appendage comprises a second portion integral with said second portion and with said front wall.

[0096] Preferably, said first portion and said second portion are superimposed on each other and turned towards said housing volume both when said cover is closing said housing volume and when said cover is opening said housing volume.

[0097] Preferably, said second front reinforcement appendage is arranged parallel to the front wall both when said cover is closing said housing volume and when said cover is opening said housing volume.

[0098] Preferably, said first portion of the second front reinforcement appendage and said second portion of the second front reinforcement appendage are arranged substantially parallel to each other both when said cover is closing said housing volume and when said cover is opening said housing volume.

[0099] Preferably, said second portion of said first front reinforcement appendage is glued to the front wall.

[0100] Preferably, said first portion of said first front reinforcement appendage is glued to the second portion of said first front reinforcement appendage.

[0101] Preferably, said second portion of said second front reinforcement appendage is glued to the front wall.

[0102] Preferably, said first portion of said second front reinforcement appendage is glued to the second portion of said second front reinforcement appendage.

[0103] The Applicant considers that the first front reinforcement appendage and the second front reinforcement appendage are capable of increasing the structural strength of the housing volume both when the box is open and when the box is closed.

[0104] Preferably, said second portion of said first front reinforcement appendage is interposed between said front wall and said first portion of said first front reinforcement appendage both when said cover is closing said housing volume and when said cover is opening said housing volume.

[0105] Preferably, said second portion of said second front reinforcement appendage is interposed between said front wall and said first portion of said second front reinforcement appendage both when said cover is closing said housing volume and when said cover is opening said housing volume.

[0106] In one embodiment, said cover comprises a first connecting appendage integral with said first auxiliary cover wall and integral with said second portion of said first back reinforcement appendage.

[0107] In this embodiment, said first connecting appendage is arranged interposed between said first side wall and said first auxiliary cover wall when the cover is closing said housing volume.

[0108] In this embodiment, said first connecting appendage is arranged aligned with said first auxiliary cover wall when the cover is opening said housing volume.

[0109] In this embodiment, said cover comprises a second connecting appendage integral with said second auxiliary cover wall and integral with said second portion of said second back reinforcement appendage.

[0110] In this embodiment, said second connecting appendage is arranged interposed between said second side wall and said second auxiliary cover wall when the cover is closing said housing volume.

[0111] In this embodiment, said second connecting appendage is arranged aligned with said second auxiliary cover wall when the cover is opening said housing volume.

[0112] The Applicant has found that the adoption of the first connecting appendage and said second connecting appendage allow the box to be made starting from a perfectly rectangular blank without it being necessary to cut and eliminate any part of the blank, thus allowing production waste to be minimised.

[0113] In a further embodiment, preferably the first auxiliary cover wall is connected at a single junction point to the second portion of said first back reinforcement appendage.

[0114] In this further embodiment, the first connecting appendage is replaced by a gap of material in the first auxiliary cover wall.

[0115] In this further embodiment, preferably the second auxiliary cover wall is connected at a single junction point to the second portion of said second back reinforcement appendage. In this further embodiment, the second connecting appendage is replaced by a gap of material in the second auxiliary cover wall.

[0116] Preferably, the box in accordance with the first aspect of the present invention is made starting from the blank in accordance with the second aspect of the present invention. Preferably, the blank is made from a single body of paper material.

[0117] Preferably, the width of the first panel is equal to the width of the second panel, to the width of the third panel and to the width of the fourth panel.

[0118] Preferably, the height of the first panel is equal to the height of the fourth panel.

[0119] Preferably, the height of the second panel is equal to the height of the third panel.

[0120] Preferably, the width of the first side portion and of the second side portion of the blank are equal.

[0121] Preferably, the width of the first side portion and of the second side portion of the blank are constant along the entire length of the blank.

[0122] Preferably, the length of the first side portion and of the second side portion of the blank are equal to one another and equal to the length of the central portion of the blank.

[0123] Preferably, said first side portion comprises a ninth panel connected to said fourth panel by said first continuous longitudinal folding line.

[0124] Preferably, said second side portion comprises a tenth panel connected to said fourth panel by said second continuous longitudinal folding line.

[0125] Preferably, when said box is in an upright form said ninth panel defines a first auxiliary cover wall.

[0126] Preferably, when said box is in an upright form said tenth panel defines a second auxiliary cover wall.

[0127] Preferably, said central portion comprises a thirteenth panel connected to said fourth panel on the opposite side with respect to said third panel.

[0128] Preferably, when said box is in an upright form said thirteenth panel defines a third auxiliary cover wall.

[0129] Preferably, the height of the thirteenth panel is equal to the height of the third panel.

[0130] Preferably, the width of the thirteenth panel is equal to the width of the second panel.

[0131] Preferably, said fourteenth panel is of quadrilateral shape.

[0132] Preferably, the first portion of the fourteenth panel is connected to said ninth panel by a transverse folding line.

[0133] Preferably, the second portion of the fourteenth panel is connected to said thirteenth panel by said first continuous longitudinal folding line.

[0134] Preferably, said fourteenth panel comprises a single oblique folding line dividing said fourteenth panel into said first portion and said second portion.

[0135] Preferably, said fifteenth panel is of quadrilateral shape.

[0136] Preferably, said first portion of the fifteenth panel is connected to said tenth panel by a transverse folding line.

[0137] Preferably, said second portion of the fifteenth panel is connected to said thirteenth panel by said second continuous longitudinal folding line.

[0138] Preferably, said fifteenth panel comprises a single oblique folding line dividing said fifteenth panel into said first portion and said second portion.

[0139] Preferably, said first side portion comprises a sixteenth panel of quadrilateral shape comprising a first portion connected to said fifth panel by a transverse folding line.

[0140] Preferably, said sixteenth panel comprises a second portion connected to said second panel by said first continuous longitudinal folding line.

[0141] Preferably, said first portion is connected to said second portion.

[0142] Preferably, said sixteenth panel comprises a single oblique folding line dividing said sixteenth panel into said first portion and said second portion.

[0143] Preferably, when said box is in an upright form said sixteenth panel defines a first front reinforcement appendage.

[0144] Preferably, said second side portion comprises a seventeenth panel of quadrilateral shape comprising a first portion connected to said sixth panel by a transverse folding line.

[0145] Preferably, said seventeenth panel comprises a second portion connected to said second panel by said second continuous longitudinal folding line.

[0146] Preferably, said first portion is connected to said second portion.

[0147] Preferably, said seventeenth panel comprises a single oblique folding line dividing said seventeenth panel into said first portion and said second portion.

[0148] Preferably, when said box is in an upright form said seventeenth panel defines a second front reinforcement appendage.

[0149] Preferably, the width of the fourteenth panel is equal to the width of the fifteenth panel. Preferably, the height of the fourteenth panel is equal to the height of the fifteenth panel. Preferably, the height of the fourteenth panel is equal to the height of the thirteenth panel. Preferably, the width of the fourteenth panel is equal to the width of the ninth panel.

[0150] Preferably, the width of the sixteenth panel is equal to the width of the seventeenth panel. Preferably, the height of the sixteenth panel is equal to the height of the seventeenth panel.

[0151] Preferably, the height of the sixteenth panel is equal to the height of the second panel.

[0152] Preferably, the width of the sixteenth panel is equal to the width of the fifth panel.

[0153] Preferably, the width of the fourteenth panel is equal to the width of the sixteenth panel. Preferably, the height of the fourteenth panel is equal to the height of the sixteenth panel. Preferably, the width of the seventh panel is equal to the width of the eighth panel. Preferably, the height of the seventh panel is equal to the height of the eighth panel. Preferably, the width of the seventh panel is equal to the width of the fourteenth panel. Preferably, the height of the seventh panel is equal to the height of the fourteenth panel. Preferably, the width of the seventh panel is equal to the width of the fifth panel.

[0154] Preferably, the height of the seventh panel is equal to the height of the third panel.

[0155] Preferably, the width of the eighth panel is equal to the width of the sixth panel.

[0156] Preferably, the height of the eighth panel is equal to the height of the third panel.

[0157] In one embodiment, preferably said first side portion comprises an eleventh panel connected to said ninth panel by an oblique folding line and connected to said seventh panel by a transverse folding line.

[0158] In this embodiment, preferably, said second side portion comprises a twelfth panel connected to said tenth panel by an oblique folding line and connected to said eighth panel by a transverse folding line.

[0159] Preferably, when said box is in an upright form said eleventh panel defines a first connecting appendage.

[0160] Preferably, when said box is in an upright form said twelfth panel defines a second connecting appendage.

[0161] Preferably, said eleventh panel has a triangular shape.

[0162] Preferably, said twelfth panel has a triangular shape.

[0163] Preferably, said eleventh panel has shape and dimensions identical to said first portion of said seventh panel.

[0164] Preferably, said twelfth panel has shape and dimensions identical to said first portion of said eighth panel.

[0165] Preferably, the width of the eleventh panel is equal to the width of the seventh panel.

[0166] Preferably, the width of the twelfth panel is equal to the width of the eighth panel.

[0167] In a further embodiment, preferably, said first side portion comprises an opening in said ninth triangular-shaped panel.

[0168] Preferably, said opening is adjacent to the second portion of the seventh panel.

[0169] In the further embodiment, preferably, said second side portion comprises an opening in said tenth triangular-shaped panel.

[0170] Preferably, said opening is adjacent to the second portion of the eighth panel.

[0171] Preferably, the blank comprises, along said first longitudinal folding line and along said second longitudinal folding line, a plurality of through holes.

[0172] Preferably, said through holes are placed between said first panel and said second panel and between said first panel and said third panel.

[0173] Preferably, said through holes are also placed between said fourth panel and said thirteenth panel.

[0174] Preferably, said through holes are placed at the intersection between said first longitudinal folding line and transverse folding lines dividing the panels from each other. Preferably, said through holes are placed at the intersection between said first longitudinal folding line and transverse folding lines dividing said first panel and said second panel and said first panel and said third panel from each other.

[0175] Preferably, said through holes are placed at the intersection between said first longitudinal folding line and a transverse folding line dividing said fourth panel and said thirteenth panel from each other.

[0176] Preferably, said through holes are also placed at the intersection between said second longitudinal folding line and transverse folding lines dividing the panels from each other. Preferably, said through holes are placed at the intersection between said second longitudinal folding line and transverse folding lines dividing said first panel and said second panel and said first panel and said third panel from each other.

[0177] Preferably, said through holes are placed at the intersection between said second longitudinal folding line and a transverse folding line dividing said fourth panel and said thirteenth panel from each other.

[0178] The Applicant has found that said through holes facilitate the folding operations of the blank during the manufacture of the box.

[0179] In the embodiment providing the eleventh panel and the twelfth panel, said through holes are preferably also placed between said third panel and said fourth panel.

[0180] In this embodiment, said through holes are preferably placed at the intersection between said first longitudinal folding line and a transverse folding line dividing said fourth panel and said third panel from each other.

[0181] In this embodiment, said through holes are preferably placed at the intersection between said second longitudinal folding line and a transverse folding line dividing said fourth panel and said third panel from each other.

[0182] Further characteristics and advantages of the present invention will become clearer from the following detailed description of a preferred embodiment thereof, with reference to the appended drawings and provided by way of indicative and non-limiting example, wherein: figure 1 is a perspective view of a first embodiment of a box of paper material in accordance with the present invention in a condition with open cover; figure 2 is a further perspective view of the box of paper material of figure 1 ; figure 3 is a perspective view of a second embodiment of a box of paper material in accordance with the present invention in a condition with open cover; figure 4 is a perspective view of a third embodiment of a box of paper material in accordance with the present invention in a condition with open cover; figure 5 is a perspective view of a box of paper material in accordance with the present invention in a condition with open cover; figure 6 is a schematic representation of a section according to plane VI-VI of the box of figure 5; figure 7 represents a first embodiment of a blank for making a box of paper material in accordance with the present invention; and figure 8 represents a second embodiment of a blank for making a box of paper material in accordance with the present invention.

[0183] A box in accordance with the present invention has been indicated as a whole with the reference number 10.

[0184] The box 10 is entirely made of paper material.

[0185] The box 10 comprises a base wall 11 configured to house restingly an article to be contained in the box 10. The base wall 1 1 has a quadrangular shape, for example square or rectangular.

[0186] A first side wall 12, a second side wall 13, a back wall 14 and a front wall 15 develop from the base wall 11 . The first side wall 12, the second side wall 13, the back wall 14 and the front wall 15 are perpendicular to the base wall 11 . The first side wall 12, the second side wall 13, the back wall 14, the front wall 15 and the base wall 11 are flat walls, i.e. lie on respective planes.

[0187] The base wall 11 is made of a single sheet, i.e. it is made of a single sheet of paper material and does not have portions in which one or more sheets of paper material are superimposed on each other. Similarly, the back wall 14 is made of a single sheet, i.e. it is made of a single sheet of paper material and does not have portions in which one or more sheets of paper material are superimposed on each other. The front wall 15 is also made of a single sheet, i.e. it is made of a single sheet of paper material and does not have portions in which one or more sheets of paper material are superimposed on each other.

[0188] The first side wall 12 is parallel and opposite to the second side wall 13. The back wall 14 is parallel and opposite to the front wall 15. The first side wall 12 and the second side wall 13 are interposed between the back wall 14 and the front wall 15. The first side wall 12 and the second side wall 13 are perpendicular to the back wall 14 and the front wall 15.

[0189] The height of the first side wall 12 is equal to the height of the second side wall 13. The height of the back wall 14 is equal to the height of the front wall 15. The height of the back wall 14 is equal to the height of the first side wall 12. The length of the first side wall 12 is equal to the length of the second side wall 13. The length of the first side wall 12 is equal to the length of the base wall 1 1 . The width of the back wall 14 is equal to the width of the front wall 15. The width of the back wall 14 is equal to the width of the base wall 11.

[0190] The base wall 1 1 is integral with the first side wall 12 and defines with the first side wall 12 a continuous edge that develops over the entire length of the base wall 1 1 and over the entire length of the first side wall 12. The first side wall 12 forms an angle of about 90° with the base wall 11 .

[0191] The base wall 1 1 is furthermore integral with the second side wall 13 and defines with the second side wall 13 a continuous edge developing over the entire length of the base wall 1 1 and over the entire length of the second side wall 13. The second side wall 13 forms an angle of about 90° with the base wall 1 1 .

[0192] The base wall 1 1 is furthermore integral with the front wall 15 and defines with the front wall 15 a continuous edge developing over the entire width of the base wall 1 1 and over the entire width of the front wall 15. The front wall 15 forms an angle of about 90° with the base wall 1 1 .

[0193] The base wall 11 is integral with the back wall 14 and defines with the back wall 14 a continuous edge developing over the entire width of the base wall 11 and over the entire width of the back wall 14. In the first and second embodiment illustrated from 1 to 3, the back wall 14 forms an angle of about 90° with the base wall 11 .

[0194] The box 10 further comprises a cover 16 which has the function of closing a housing volume 17 for an article. This housing volume 17 is the volume enclosed by the first side wall 12, the second side wall 13, the back wall 14, the front wall 15 and the base wall 11 . The cover 16 comprises a cover wall 18, a first auxiliary cover wall 19, a second auxiliary cover wall 20 and a third auxiliary cover wall 21 .

[0195] The cover wall 18 develops from the back wall 14. The width of the cover wall 18 is equal to the width of the base wall 11 . The length of the cover wall 18 is equal to the length of the base wall 1 1 . The cover wall 18 is integral with the back wall 14.

[0196] The first auxiliary cover wall 19 develops from the cover wall 18. The length of the first auxiliary cover wall 19 is equal to the width of the first side wall 12 and is equal to the length of the cover wall 18. The height of the first auxiliary cover wall 19 is equal to the height of the first side wall 12. The first auxiliary cover wall 19 is perpendicular to the cover wall 18. The first auxiliary cover wall 19 is integral with the cover wall 18.

[0197] The second auxiliary cover wall 20 develops from the cover wall 18. The length of the second auxiliary cover wall 20 is equal to the width of the second side wall 13 and is equal to the length of the cover wall 18. The height of the second auxiliary cover wall 20 is equal to the height of the second side wall 13. The second auxiliary cover wall 20 is parallel to the first auxiliary cover wall 19. The second auxiliary cover wall 20 is perpendicular to the cover wall 18. The second auxiliary cover wall 20 is integral with the cover wall 18.

[0198] The third auxiliary cover wall 21 develops from the cover wall 18. The width of the third auxiliary cover wall 21 is equal to the width of the back wall 14 and is equal to the width of the cover wall 18. The height of the third auxiliary cover wall 21 is equal to the height of the front wall 15. The third auxiliary cover wall 21 is perpendicular to the first auxiliary cover wall 19 and the second auxiliary cover wall 20. The third auxiliary cover wall 21 is perpendicular to the cover wall 18. The third auxiliary cover wall 21 is integral with the cover wall 18.

[0199] When the box 10 is in a closed condition (figure 5), i.e. when the cover 16 is closing the housing volume 17, the cover wall 18 is arranged parallel to the base wall 11. In this condition, the first auxiliary cover wall 19 is arranged parallel to the first side wall 12 with the first side wall 12 interposed between the first auxiliary cover wall 19 and the housing volume 17. In this condition, the second auxiliary cover wall 20 is arranged parallel to the second side wall 13 with the second side wall 13 interposed between the second auxiliary cover wall 20 and the housing volume 17. In this condition, the third auxiliary cover wall 21 is arranged parallel to the front wall 15 with the front wall 15 interposed between the third auxiliary cover wall 21 and the housing volume 17.

[0200] The box 10 further comprises a first back reinforcement appendage 22 and a second back reinforcement appendage 23 placed entirely within the housing volume 17 at least when the box 10 is in a closed condition.

[0201] As better illustrated in figures 1 to 4, in all embodiments of the box 10, the first back reinforcement appendage 22 comprises a first portion 24 of triangular shape and a second portion 25 also of triangular shape integral with each other.

[0202] The first portion 24 is integral with the first side wall 12. The first portion 24 has the same height as the first side wall 12. The first portion 24 has a vertex placed at both the base wall 11 and the back wall 14. This vertex is defined between two sides of the first portion 24 respectively adjacent to the first side wall 12 and to the second portion 25.

[0203] The second portion 25 is integral with the back wall 14. The second portion 25 has the same height as the back wall 14. The second portion 25 is complementary to the first portion 24 and together make the first back reinforcement appendage 22.

[0204] Figure 6 illustrates a schematic section of the box 10 (in any embodiment) in a closed condition. In this figure, the thicknesses of the walls of the box were deliberately depicted much greater than the actual proportions to better highlight some aspects.

[0205] As schematically illustrated in figure 6, when the box 10 is in a closed condition, the first portion 24 and the second portion 25 of the first back reinforcement appendage 22 are superimposed, parallel on / to each other and parallel to the first side wall 12. The first portion 24 and the second portion 25 make a triangular shape for the first back reinforcement appendage 22. The first portion 24 and the second portion 25 are facing in the housing volume 17 with the second portion 25 directly exposed in the housing volume 17 and the first portion 24 interposed between the second portion 24 and the first side wall 12.

[0206] As schematically depicted in figure 6, when the box 10 is in a closed condition, the first portion 24 is directly connected to the first side wall 12 and is folded by 180° with respect to the first side wall 12 to be arranged parallel and superimposed on the first side wall 12. The second portion 25 is directly connected to the first portion 24 and is folded by 180° with respect to the first portion 24 to be arranged parallel and superimposed on the first portion 24. The second portion 25 reaches the back wall 14, to which it is directly connected, forming a 90° angle with the back wall 14. Unlike what is depicted in figure 6 (which in order to illustrate increased wall thicknesses creates a representation error at the point where the second portion 25 reaches the back wall 14) the second portion 25 reaches the back wall 14 in an edge zone where the cover wall 18, the first auxiliary cover wall 19 and the back wall 14 meet. This zone is better depicted in figure 1 .

[0207] In the embodiments of figure 1 , 2 and 3, the first portion 24 and the second portion 25 of the first back reinforcement appendage 22 are in the same configuration even when the box 10 is in an open condition, i.e. when the cover 16 is opening the housing volume 17. In the embodiments of figure 1 , 2 and 3, the first portion 24 and the second portion 25 assume the same configuration both when the box 10 is in a closed condition and when the box 10 is in an open condition. In the embodiments of figure 1 , 2 and 3, the first portion 24 and the second portion 25 are glued together and the first portion 24 is glued to the first side wall 12. In these embodiments, when the box 10 is in an open condition the cover 16 opens up with an angle of 90° with respect to the base wall 1 1 . When the box 10 is in an open condition the cover wall 18 is arranged coplanar with the back wall 14 which continues to form a 90° angle with the base wall 11 .

[0208] In the embodiment of figure 4 (which differs from the other embodiments in the way in which the cover 16 opens) the first portion 24 and the second portion 25 are not glued together and the first portion 24 is not glued to the first side wall 12. In this embodiment, when the box 10 is in an open condition, the cover 16 is opened like a book (opens up with an angle of 180°) with respect to the base wall 11 . In this embodiment, as illustrated in figure 4, when the box 10 is in an open condition, the back wall 14 is arranged to be coplanar with the base wall 1 1 and with the cover wall 18.

[0209] In this embodiment, as illustrated in figure 4 when the box 10 is in an open condition the first portion 24 is directly connected to the first side wall 12 and coplanar with the first side wall 12. The second portion 25 is directly connected to the first portion 24 and is coplanar with the first portion 24. The second portion 25 reaches the back wall 14, to which it is directly connected, forming a 90° angle with the back wall 14. The second portion 25 reaches the back wall 14 in an edge zone where the cover wall 18, the first auxiliary cover wall 19 and the back wall 14 meet.

[0210] In all embodiments of the box 10, the second back reinforcement appendage 23 comprises a first portion 26 of triangular shape and a second portion 27 also of triangular shape integral with each other.

[0211] The first portion 26 is integral with the second side wall 13. The first portion 26 has the same height as the second side wall 13. The first portion 26 has a vertex placed at both the base wall 1 1 and the back wall 14. This vertex is defined between two sides of the first portion 26 respectively adjacent to the second side wall 13 and to the second portion 27.

[0212] The second portion 27 is integral with the back wall 14. The second portion 27 has the same height as the back wall 14. The second portion 27 is complementary to the first portion 26 and together make the second back reinforcement appendage 23.

[0213] As schematically illustrated in figure 6, when the box 10 is in a closed condition, the first portion 26 and the second portion 27 of the second back reinforcement appendage 23 are superimposed, parallel on / to each other and parallel to the second side wall 13. The first portion 26 and the second portion 27 make a triangular shape for the second back reinforcement appendage 23. The first portion 26 and the second portion 27 are facing in the housing volume 17 with the second portion 27 directly exposed in the housing volume 17 and the first portion 26 interposed between the second portion 27 and the second side wall 13.

[0214] As schematically depicted in figure 6, when the box 10 is in a closed condition, the first portion 26 is directly connected to the second side wall 13 and is folded by 180° with respect to the second side wall 13 to be arranged parallel and superimposed on the second side wall 13. The second portion 27 is directly connected to the first portion 26 and is folded by 180° with respect to the first portion 26 to be arranged parallel and superimposed on the first portion 26. The second portion 27 reaches the back wall 14, to which it is directly connected, forming a 90° angle with the back wall 14. Unlike what is depicted in figure 6 (which in order to illustrate increased wall thicknesses creates a representation error at the point where the second portion 25 reaches the back wall 14) the second portion 27 reaches the back wall 14 in an edge zone where the cover wall 18, the second auxiliary cover wall 20 and the back wall 14 meet. This zone is better depicted in figure 2.

[0215] In the embodiments of figure 1 , 2 and 3, the first portion 26 and the second portion 27 of the second back reinforcement appendage 23 are in the same configuration even when the box 10 is in an open condition, i.e. when the cover 16 is opening the housing volume 17. In the embodiments of figure 1 , 2 and 3, the first portion 26 and the second portion 27 assume the same configuration both when the box 10 is in a closed condition and when the box 10 is in an open condition. In the embodiments of figure 1 , 2 and 3, the first portion 26 and the second portion 27 are glued together and the first portion 26 is glued to the second side wall 13.

[0216] In the embodiment of figure 4, the first portion 26 and the second portion 27 are not glued together and the first portion 26 is not glued to the second side wall 13. In this embodiment, as illustrated in figure 4, when the box 10 is in an open condition, the first portion 26 is directly connected to the second side wall 13 and coplanar with the second side wall 13. The second portion 27 is directly connected to the first portion 26 and is coplanar with the first portion 26. The second portion 27 reaches the back wall 14, to which it is directly connected, forming a 90° angle with the back wall 14. The second portion 27 reaches the back wall 14 in an edge zone where the cover wall 18, the second auxiliary cover wall 20 and the back wall 14 meet.

[0217] The box 10 further comprises a first cover reinforcement appendage 28 and a second cover reinforcement appendage 29 both of triangular shape.

[0218] As better illustrated in figures 1 to 4, in all embodiments of the box 10, the first cover reinforcement appendage 28 comprises a first portion 30 of triangular shape and a second portion 31 also of triangular shape integral with each other.

[0219] The first portion 30 is integral with the first auxiliary cover wall 19. The first portion 30 has the same height as the first auxiliary cover wall 19. The first portion 30 has a vertex placed at both the cover wall 18 and the first auxiliary cover wall 19. This vertex is defined between two sides of the first portion 30 respectively adjacent to the first auxiliary cover wall 19 and to the second portion 31 .

[0220] The second portion 31 is integral with the third auxiliary cover wall 21 . The second portion 31 has the same height as the third auxiliary cover wall 21. The second portion 31 is complementary to the first portion 30 and together make the first cover reinforcement appendage 28.

[0221] As better illustrated schematically in Fig. 6, first portion 30 and second portion 31 of the first cover reinforcement appendage 28 are superimposed, parallel on / to each other and parallel to the third auxiliary cover wall 21 . The first portion 30 and the second portion 31 make a triangular shape for the first cover reinforcement appendage 28. The first portion 30 and the second portion 31 are facing the front wall 15 when the box 10 is in a closed condition. Both when the box 10 is in a closed condition and when the box 10 is in an open condition, the second portion 31 is interposed between the first portion 30 and the third auxiliary cover wall 21 .

[0222] As schematically depicted in figure 6, when the box 10 is in a closed condition (and also when the box 10 is in an open condition), the first portion 30 is directly connected to the first auxiliary cover wall 19 and is folded by 90° with respect to the first auxiliary cover wall 19 to be arranged parallel to the third auxiliary cover wall 21 . The second portion 31 is directly connected to the first portion 30 and is folded by 180° with respect to the first portion 30 to be arranged parallel and superimposed on the first portion 30. The second portion 31 reaches the third auxiliary cover wall 21 , to which it is directly connected, forming an angle of 180° with the third auxiliary cover wall 21 . The second portion 31 is directly superimposed on the third auxiliary cover wall 21 . The second portion 31 is glued to the third auxiliary cover wall 21 and the first portion 30 is glued to the second portion 31. As better illustrated in figures 1 to 4, in all the embodiments of the box 10, the second cover reinforcement appendage 29 comprises a first portion 32 of triangular shape and a second portion 33 also of triangular shape integral with each other.

[0223] The first portion 32 is integral with the second auxiliary cover wall 20. The first portion 32 has the same height as the second auxiliary cover wall 20. The first portion 32 has a vertex placed at both the cover wall 18 and the second auxiliary cover wall 20. This vertex is defined between two sides of the first portion 32 respectively adjacent to the second auxiliary cover wall 20 and to the second portion 33.

[0224] The second portion 33 is integral with the third auxiliary cover wall 21 . The second portion 33 has the same height as the third auxiliary cover wall 21 . The second portion 33 is complementary to the first portion 32 and together make the second cover reinforcement appendage 29.

[0225] As better illustrated schematically in figure 6, the first portion 32 and the second portion 33 of the second cover reinforcement appendage 29 are superimposed, parallel on / to each other and parallel to the third auxiliary cover wall 21. The first portion 32 and the second portion 33 make a triangular shape for the second cover reinforcement appendage 29. The first portion 32 and the second portion 33 are facing the front wall 15 when the box 10 is in a closed condition. Both when the box 10 is in a closed condition and when the box 10 is in an open condition, the second portion 33 is interposed between the first portion 32 and the third auxiliary cover wall 21 .

[0226] As schematically depicted in figure 6, when the box 10 is in a closed condition (and also when the box 10 is in an open condition), the first portion 32 is directly connected to the second auxiliary cover wall 20 and is folded by 90° with respect to the second auxiliary cover wall 20 to be arranged parallel to the third auxiliary cover wall 21. The second portion 33 is directly connected to the first portion 32 and is folded by 180° with respect to the first portion 32 to be arranged parallel and superimposed on the first portion 32. The second portion 33 reaches the third auxiliary cover wall 21 , to which it is directly connected, forming an angle of 180° with the third auxiliary cover wall 21. The second portion 33 is directly superimposed on the third auxiliary cover wall 21. The second portion 33 is glued to the third auxiliary cover wall 21 and the first portion 32 is glued to the second portion 33.

[0227] The box 10 further comprises a first front reinforcement appendage 34 and a second front reinforcement appendage 35 both of triangular shape.

[0228] As better illustrated in figures 1 to 4, in all embodiments of the box 10, the first front reinforcement appendage 34 comprises a first portion 36 of triangular shape and a second portion 37 also of triangular shape integral with each other.

[0229] The first portion 36 is integral with the first side wall 12. The first portion 36 has the same height as the first side wall 12. The first portion 36 has a vertex placed at both the base wall 1 1 and the first side wall 12. This vertex is defined between two sides of the first portion 36 respectively adjacent to the first side wall 12 and to the second portion 37.

[0230] The second portion 37 is integral with the front wall 15. The second portion 37 has the same height as the front wall 15. The second portion 37 is complementary to the first portion 36 and together make the first reinforcement appendage 34.

[0231] As better illustrated schematically in figure 6, the first portion 36 and the second portion 37 of the first front reinforcement appendage 34 are superimposed, parallel on / to each other and parallel to the front wall 15. The first portion 36 and the second portion 37 make a triangular shape for the first front reinforcement appendage 34. The first portion 36 and the second portion 37 are facing the front wall 15 both when the box 10 is in a closed condition and when the box 10 is in an open condition. The second portion 37 is interposed between the first portion 36 and the front wall 15.

[0232] As schematically depicted in figure 6, when the box 10 is in a closed condition (and also when the box 10 is in an open condition), the first portion 36 is directly connected to the first side wall 12 and is folded by 90° with respect to the first side wall 12 to be arranged parallel to the front wall 15. The second portion 37 is directly connected to the first portion 36 and is folded by 180° with respect to the first portion 36 to be arranged parallel and superimposed on the first portion 36. The second portion 37 reaches the front wall 15, to which it is directly connected, forming a 180° angle with the front wall 15. The second portion 37 is directly superimposed on the front wall 15. The second portion 37 is glued to the front wall 15 and the first portion 36 is glued to the second portion 37.

[0233] In all embodiments of the box 10, the second front reinforcement appendage 35 comprises a first portion 38 of triangular shape and a second portion 39 also of triangular shape integral with each other.

[0234] The first portion 38 is integral with the second side wall 13. The first portion 38 has the same height as the second side wall 13. The first portion 38 has a vertex placed at both the base wall 1 1 and the second side wall 13. This vertex is defined between two sides of the first portion 38 respectively adjacent to the second side wall 13 and to the second portion 39.

[0235] The second portion 39 is integral with the front wall 15. The second portion 39 has the same height as the front wall 15. The second portion 39 is complementary to the first portion 38 and together make the second front reinforcement appendage 35.

[0236] As better illustrated schematically in figure 6, the first portion 38 and the second portion 39 of the second front reinforcement appendage 35 are superimposed, parallel on / to each other and parallel to the front wall 15. The first portion 38 and the second portion 39 make a triangular shape for the second front reinforcement appendage 35. The first portion 38 and the second portion 39 are facing the front wall 15 both when the box 10 is in a closed condition and when the box 10 is in an open condition. The second portion 39 is interposed between the first portion 38 and the front wall 15.

[0237] As schematically depicted in figure 6, when the box 10 is in a closed condition (and also when the box 10 is in an open condition), the first portion 38 is directly connected to the second side wall 13 and is folded by 90° with respect to the second side wall 13 to be arranged parallel to the front wall 15. The second portion 39 is directly connected to the first portion 38 and is folded by 180° with respect to the first portion 38 to be arranged parallel and superimposed on the first portion 38. The second portion 39 reaches the front wall 15, to which it is directly connected, forming a 180° angle with the front wall 15. The second portion 39 is directly superimposed on the front wall 15. The second portion

[0238] 39 is glued to the front wall 15 and the first portion 38 is glued to the second portion 39. In the embodiments of figure 1 , 2 and 4, the box 10 comprises a first connecting appendage 40 and a second connecting appendage 41 .

[0239] The first connecting appendage 40 and the second connecting appendage 41 respectively connect the first auxiliary cover wall 19 to the first back reinforcement appendage 22 and the second auxiliary cover wall 20 with the second back reinforcement appendage 23.

[0240] The first connecting appendage 40 is connected to the second portion 24 of the first back reinforcement appendage 22. The first connecting appendage 40 has the same height as the first auxiliary cover wall 19. The first connecting appendage 40 has a triangular shape and has a vertex placed at both the cover wall 18 and the back wall 14. This vertex is defined between two sides of the first connecting appendage 40 respectively adjacent to the first back reinforcement appendage 22 and to the first auxiliary cover wall 19.

[0241] The second connecting appendage 41 is connected to the second portion 27 of the second back reinforcement appendage 23. The second connecting appendage 41 has the same height as the second auxiliary cover wall 20. The second connecting appendage 41 has a triangular shape and has a vertex placed at both the cover wall 18 and the back wall 14. This vertex is defined between two sides of the second connecting appendage 41 respectively adjacent to the second back reinforcement appendage 23 and to the second auxiliary cover wall 20.

[0242] When the first connecting appendage 40 and the second connecting appendage 41 are provided and when the box 10 is in an open condition, the first connecting appendage

[0243] 40 is arranged coplanar to the first auxiliary cover wall 19 and the second connecting appendage 40 is arranged coplanar to the second auxiliary cover wall 20 as shown in figure 1 , 2 and 4.

[0244] In the embodiment of figure 4, when the box 10 is in an open condition the first connecting appendage 40 and the second connecting appendage 41 are also coplanar, respectively, with the first back reinforcement appendage 22 and with the second back reinforcement appendage 23. As schematically depicted in figure 6, when the box 10 is in closed condition, the first connecting appendage 40 is directly connected to the first auxiliary cover wall 19 and is folded by 180° with respect to the first auxiliary cover wall 19 to be arranged parallel to the first auxiliary cover wall 19. The first connecting appendage 40 is further connected to the first back reinforcement appendage 22 and is folded by 180° with respect to the first back reinforcement appendage 22. The first connecting appendage 40 is arranged interposed between the first side wall 12 and the first auxiliary cover wall 19. The second connecting appendage 41 is directly connected to the second cover auxiliary wall 20 and is folded by 180° with respect to the second cover auxiliary wall 20 to be arranged parallel to the second cover auxiliary wall 20. The second connecting appendage 41 is further connected to the second back reinforcement appendage 23 and is folded by 180° with respect to the second back reinforcement appendage 23. The second connecting appendage 41 is arranged interposed between the second side wall 13 and the second auxiliary cover wall 20.

[0245] In the embodiment of figure 3, the first connecting appendage 40 and the second connecting appendage 41 are not present. In this embodiment, the first auxiliary cover wall 19 comprises a triangular opening having a side at the second portion 24 of the first back reinforcement appendage 22 and a vertex placed at both the cover wall 18 and the back wall 14. In this embodiment, the second auxiliary cover wall 20 comprises a triangular opening having a side at the second portion 27 of the second back reinforcement appendage 23 and a vertex placed at both the cover wall 18 and the back wall 14.

[0246] Figures 7 and 8 illustrate two blanks 100 for making boxes in paper material. Unless otherwise specified, what is described in relation to the blank of figure 7 applies identically also to the blank of figure 8. For further understanding, the following description will make explicit reference to blanks for making the various embodiments of the boxes 10 described above.

[0247] The blank 100 comprises, preferably consists of, a central portion 101 , a first side portion

[0248] 102 and a second side portion 103. The central portion 101 has a height equal to the first side portion 102 and to the second side portion 103. The height of the second side portion

[0249] 103 is equal to the height of the first side portion 102. The width of the second side portion 103 is equal to the height of the first side portion 102. The central portion 101 is connected to the first side portion 102 by a first single continuous longitudinal folding line

[0250] 104 that develops over the entire height of the first side portion 102. The central portion 101 is connected to the second side portion 103 by a second single continuous longitudinal folding line 105 that develops over the entire height of the second side portion 103. The first folding line 104 and the second folding line 105 are straight lines. The first side portion 102 is mirrored with respect to the second side portion 103. In the embodiment of figure 7, the blank 100 has a quadrilateral shape, preferably it has a rectangular shape.

[0251] The central portion 101 comprises a first panel 106 which, when the box is in an upright form, defines the base wall 1 1. The central portion 101 comprises a second panel 107 which, when the box is in an upright form, defines the front wall 15. The central portion 101 comprises a third panel 108 which, when the box is in an upright form, defines the back wall 14. The central portion 101 comprises a fourth panel 109 which, when the box is in an upright form, defines the cover wall 18. The central portion 101 comprises a thirteenth panel 1 10 which, when the box is in an upright form, defines the third auxiliary cover wall 21 .

[0252] The first panel 106 is interposed between the second panel 107 and the third panel 108 and is connected to them by respective single transverse folding lines. The fourth panel 109 is adjacent to the third panel 108 and is connected to the latter by a single transverse folding line. The first panel 106, the second panel 107, the third panel 108 and the fourth panel 109 have the same width. The second panel 107 and the third panel 108 have the same height. The first panel 106 and the fourth panel 109 have the same height.

[0253] The thirteenth panel 1 10 is adjacent to the fourth panel 109 and is placed on the opposite side with respect to the third panel 108. The thirteenth panel 110 is connected to the fourth panel 109 by a single transverse folding line. The thirteenth panel 1 10 has the same width as the fourth panel 109. The thirteenth panel 110 has a height equal to the height of the second panel 107. The thirteenth panel 110 is placed at a longitudinal end of the central portion 101 of the blank 100.

[0254] The first side portion 102 comprises a fifth panel 111 which, when the box is in an upright form, defines the first side wall 12. The first side portion 102 comprises a ninth panel 112 which, when the box is in an upright form, defines the first auxiliary cover panel 19. The first side portion 102 comprises a seventh panel 113 which, when the box is in an upright form, defines the first back reinforcement appendage 22. The first side portion 102 comprises a fourteenth panel 114 which, when the box is in an upright form, defines the first cover reinforcement appendage 28. The first side portion 102 comprises a sixteenth panel 115 which, when the box is in an upright form, defines the first front reinforcement appendage 34.

[0255] The fifth panel 1 11 is interposed between the sixteenth panel 1 15 and the seventh panel 113. The fifth panel 111 is transversely adjacent to the first panel 106 only and is connected to the latter by a single longitudinal folding line. Said single longitudinal folding line is made by a portion of said first single continuous longitudinal folding line 104. The height of the fifth panel 11 1 is equal to the height of the first panel 106.

[0256] The ninth panel 112 is longitudinally adjacent to the fourteenth panel 114. The ninth panel 112 is transversely adjacent to the only fourth panel 109 and is connected to the latter by a single longitudinal folding line. Said single longitudinal folding line is made by a portion of said first single continuous longitudinal folding line 104. The height of the ninth panel 11 1 is equal to the height of the fourth panel 109.

[0257] The seventh panel 113 is longitudinally interposed between the fifth panel 1 11 and the ninth panel 112. The seventh panel 1 13 is transversely adjacent to the only third panel 108 and is connected to the latter by a single longitudinal folding line. Said single longitudinal folding line is made by a portion of said first single continuous longitudinal folding line 104. The height of the seventh panel 1 13 is equal to the height of the third panel 108. The width of the seventh panel is equal to the width of the fifth panel 11 1. The seventh panel 113 has a square or rectangular shape. The seventh panel 113 comprises a first portion 113a and a second portion 1 13b. The first portion 113a is connected to the fifth panel 11 1 by a transverse folding line. The second portion 1 13b is connected to the third panel 108 by a single longitudinal folding line. Said single longitudinal folding line is made by a portion of said first single continuous longitudinal folding line 104. The first portion 1 13a and the second portion 1 13b are triangular. The first portion 113a is connected to the second portion 1 13b by a single oblique folding line. This oblique folding line develops starting from the intersection between a transverse folding line (which separates the third panel 108 from the first panel 106) and said first single continuous longitudinal folding line 104.

[0258] The fourteenth panel 1 14 is a longitudinal end panel for the first side portion 102. The fourteenth panel 1 14 is transversely adjacent to the only thirteenth panel 110 and is connected to the latter by a single longitudinal folding line. Said single longitudinal folding line is made by a portion of said first single continuous longitudinal folding line 104. The height of the fourteenth panel 114 is equal to the height of the thirteenth panel 1 10. The width of the fourteenth panel 114 is equal to the width of the ninth panel 1 12. The fourteenth panel 114 has a square or rectangular shape. The fourteenth panel 114 comprises a first portion 1 14a and a second portion 1 14b. The first portion 114a is connected to the ninth panel 112 by a transverse folding line. The second portion 114b is connected to the thirteenth panel 110 by a single longitudinal folding line. Said single longitudinal folding line is made by a portion of said first single continuous longitudinal folding line 104. The first portion 114a and the second portion 1 14b are triangular. The first portion 114a is connected to the second portion 1 14b by a single oblique folding line. This oblique folding line develops starting from the intersection between a transverse folding line (which separates the thirteenth panel 110 from the fourth panel 109) and said first single continuous longitudinal folding line 104. The fourteenth panel 114 is identical in shape and dimension to the seventh panel 1 13.

[0259] The sixteenth panel 115 is a longitudinal end panel for the first side portion 102. The sixteenth panel 115 is transversely adjacent to the only second panel 107 and is connected to the latter by a single longitudinal folding line. Said single longitudinal folding line is made by a portion of said first single continuous longitudinal folding line 104. The height of the sixteenth panel 1 15 is equal to the height of the second panel 107. The width of the sixteenth panel 115 is equal to the width of the fifth panel 1 11. The sixteenth panel 1 15 has a square or rectangular shape. The sixteenth panel 115 comprises a first portion 115a and a second portion 115b. The first portion 1 15a is connected to the fifth panel 1 11 by a transverse folding line. The second portion 115b is connected to the second panel 107 by a single longitudinal folding line. Said single longitudinal folding line is made by a portion of said first single continuous longitudinal folding line 104. The first portion 1 15a and the second portion 1 15b are triangular. The first portion 115a is connected to the second portion 1 15b by a single oblique folding line. This oblique folding line develops starting from the intersection between a transverse folding line (which separates the second panel 107 from the first panel 106) and said first single continuous longitudinal folding line 104.

[0260] The second side portion 103 comprises a sixth panel 116 which, when the box is in an upright form, defines the second side wall 13. The second side portion 103 comprises a tenth panel 1 17 which, when the box is in an upright form, defines the second auxiliary cover panel 20. The second side portion 103 comprises an eighth panel 1 18 which, when the box is in an upright form, defines the second back reinforcement appendage 23. The second side portion 103 comprises a fifteenth panel 119 which, when the box is in an upright form, defines the second cover reinforcement appendage 29. The second side portion 103 comprises a seventeenth panel 120 which, when the box is in an upright form, defines the second front reinforcement appendage 35.

[0261] The sixth panel 1 16 is interposed between the seventeenth panel 120 and the eighth panel 118. The sixth panel 116 is transversely adjacent to the only first panel 106 and is connected to the latter by a single longitudinal folding line. Said single longitudinal folding line is made by a portion of said second single continuous longitudinal folding line 105. The height of the sixth panel 116 is equal to the height of the first panel 106.

[0262] The tenth panel 1 17 is longitudinally adjacent to the fifteenth panel 119. The tenth panel 1 17 is transversely adjacent to the only fourth panel 109 and is connected to the latter by a single longitudinal folding line. Said single longitudinal folding line is made by a portion of said second single continuous longitudinal folding line 105. The height of the tenth panel 1 17 is equal to the height of the fourth panel 109.

[0263] The eighth panel 1 18 is longitudinally interposed between the sixth panel 1 16 and the tenth panel 1 17. The eighth panel 118 is transversely adjacent to the only third panel 108 and is connected to the latter by a single longitudinal folding line. Said single longitudinal folding line is made by a portion of said second single continuous longitudinal folding line 105. The height of the eighth panel 1 18 is equal to the height of the third panel 108. The width of the eighth panel 1 18 is equal to the width of the sixth panel 1 16. The eighth panel 1 18 has a square or rectangular shape. The eighth panel 118 comprises a first portion 1 18a and a second portion 118b. The first portion 118a is connected to the sixth panel 1 16 by a transverse folding line. The second portion 1 18b is connected to the third panel 108 by a single longitudinal folding line. Said single longitudinal folding line is made by a portion of said second single continuous longitudinal folding line 105. The first portion 118a and the second portion 1 18b are triangular. The first portion 118a is connected to the second portion 1 18b by a single oblique folding line. This oblique folding line develops starting from the intersection between a transverse folding line (which separates the third panel 108 from the first panel 106) and said second single continuous longitudinal folding line 105. The eighth panel 1 18 is mirrored (with respect to a longitudinal axis of symmetry) to the seventh panel 113.

[0264] The fifteenth panel 119 is a longitudinal end panel for the second side portion 103. The fifteenth panel 119 is transversely adjacent to the only thirteenth panel 1 10 and is connected to the latter by a single longitudinal folding line. Said single longitudinal folding line is made by a portion of said second single continuous longitudinal folding line 105. The height of the fifteenth panel 1 19 is equal to the height of the thirteenth panel 110. The width of the fifteenth panel 1 19 is equal to the width of the tenth panel 1 17. The fifteenth panel 1 19 has a square or rectangular shape. The fifteenth panel 119 comprises a first portion 119a and a second portion 1 19b. The first portion 119a is connected to the tenth panel 117 by a transverse folding line. The second portion 1 19b is connected to the thirteenth panel 110 by a single longitudinal folding line. Said single longitudinal folding line is made by a portion of said second single continuous longitudinal folding line 105. The first portion 1 19a and the second portion 119b are triangular. The first portion 119a is connected to the second portion 119b by a single oblique folding line. This oblique folding line develops starting from the intersection between a transverse folding line (which separates the thirteenth panel 1 10 from the fourth panel 109) and said second single continuous longitudinal folding line 105. The fifteenth panel 1 19 is identical in shape and dimension to the eighth panel 1 18.

[0265] The seventeenth panel 120 is a longitudinal end panel for the second side portion 103. The seventeenth panel 120 is transversely adjacent to the only second panel 107 and is connected to the latter by a single longitudinal folding line. Said single longitudinal folding line is made by a portion of said second single continuous longitudinal folding line 105. The height of the seventeenth panel 120 is equal to the height of the second panel 107. The width of the seventeenth panel 120 is equal to the width of the sixth panel 1 16. The seventeenth panel 120 has a square or rectangular shape. The seventeenth panel 120 comprises a first portion 120a and a second portion 120b. The first portion 120a is connected to the sixth panel 1 16 by a transverse folding line. The second portion 120b is connected to the second panel 107 by a single longitudinal folding line. Said single longitudinal folding line is made by a portion of said second single continuous longitudinal folding line 105. The first portion 120a and the second portion 120b are triangular. The first portion 120a is connected to the second portion 120b by a single oblique folding line. This oblique folding line develops starting from the intersection between a transverse folding line (which separates the second panel 107 from the first panel 106) and said second single continuous longitudinal folding line 105.

[0266] In the embodiment of figure 7, the first side portion 102 comprises an eleventh panel 121 which, when the box is in an upright form, defines the first connecting appendage 40. The eleventh panel 121 is connected to the seventh panel 1 13 and the ninth panel 112. The eleventh panel 121 is connected to the second portion 113b of the seventh panel 113 by a transverse folding line aligned with the transverse folding line which separates the third panel 108 from the fourth panel 109. The height of the eleventh panel 121 is equal to the height of the seventh panel 113. The eleventh panel 121 has a triangular shape and is identical in shape and dimension to the second portion 113b of the seventh panel 1 13. The eleventh panel 121 is connected to the ninth panel 1 12 by a single oblique folding line. This oblique folding line develops starting from the intersection between a transverse folding line (which separates the third panel 108 from the fourth panel 109) and said first single continuous longitudinal folding line 104.

[0267] In the embodiment of figure 7, the second side portion 103 comprises a twelfth panel 122 which, when the box is in an upright form, defines the second connecting appendage 41 . The twelfth panel 122 is connected to the eighth panel 118 and the tenth panel 1 17. The twelfth panel 122 is connected to the second portion 118b of the eighth panel 118 by a transverse folding line aligned with the transverse folding line which separates the third panel 108 from the fourth panel 109. The height of the twelfth panel 122 is equal to the height of the eighth panel 118. The twelfth panel 122 has a triangular shape and is identical in shape and dimension to the second portion 1 18b of the eighth panel 118. The twelfth panel 122 is connected to the tenth panel 117 by a single oblique folding line. This oblique folding line develops starting from the intersection between a transverse folding line (which separates the third panel 108 from the fourth panel 109) and said second single continuous longitudinal folding line 105.

[0268] In the embodiment of figure 8, the first side portion 102 comprises a triangular opening longitudinally placed between the ninth panel 1 12 and the seventh panel 113. This triangular opening has a triangular shape and is identical in shape and dimension to the second portion 1 13b of the seventh panel 1 13. The triangular opening is defined by a single oblique line, which develops starting from the intersection between a transverse folding line (which separates the third panel 108 from the fourth panel 109) and said first single continuous longitudinal folding line 104, and by a peripheral edge of the second portion 113b of the seventh panel 1 13.

[0269] In the embodiment of figure 8, the second side portion 103 comprises a triangular opening longitudinally placed between the tenth panel 117 and the eighth panel 118. This triangular opening has a triangular shape and is identical in shape and dimension to the second portion 1 18b of the eighth panel 1 18. The triangular opening is defined by a single oblique line, which develops starting from the intersection between a transverse folding line (which separates the third panel 108 from the fourth panel 109) and said second single continuous longitudinal folding line 105, and by a peripheral edge of the second portion 1 18b of the eighth panel 118.

[0270] In both embodiments, the blank 100 comprises a plurality of through holes 123 passing through the blank 100. The through holes 123 have all the same dimensions. The holes 123 are circular in shape and, by way of example, may have a diameter comprised between 1 millimetre and 8 millimetres, for example comprised between 1 millimetre and 5 millimetres.

[0271] The through holes 123 are placed along the first longitudinal folding line 104 and along the second longitudinal folding line 105 at intersections of such lines with transverse folding lines.

[0272] Along the first longitudinal folding line 104 the through holes 123 are placed on the transverse folding line dividing the first panel 106 from the second panel 107, on the transverse folding line dividing the third panel 108 from the second panel 107 and on the transverse folding line dividing the fourth panel 109 from the thirteenth panel 110.

[0273] Along the second longitudinal folding line 105 the through holes 123 are placed on the transverse folding line dividing the first panel 106 from the second panel 107, on the transverse folding line dividing the third panel 108 from the second panel 107 and on the transverse folding line dividing the fourth panel 109 from the thirteenth panel 110.

[0274] In the embodiment of figure 7, a through hole 123 is also provided along the first longitudinal folding line 104 on the transverse folding line dividing the seventh panel 113 from the eleventh 121. In this embodiment, there is also provided a through hole 123 along the second longitudinal folding line 105 on the transverse folding line dividing the eighth panel 1 18 from the twelfth 122.

Claims

CLAIMS1 . Box (10) comprising: a base wall (11 ), a back wall (14), a front wall (15), a first side wall (12) and a second side wall (13) defining a housing volume (17) for an article, wherein said first side wall(12) and second side wall (13) are arranged between said back wall (14) and front wall (15), wherein said back wall (14), front wall (15), first side wall (12) and second side wall(13) are integral with said base wall (11 ); a cover (16) comprising a cover wall (18) integral with said back wall (14) and foldable so as to close said housing volume (17) and to open said housing volume (17), a first auxiliary cover wall (19), a second auxiliary cover wall (20) and a third auxiliary cover wall (21 ) integral with the cover wall (18); a first back reinforcement appendage (22) comprising a first portion (24) integral with said first side wall (12) and a second portion (25) integral with said back wall (14), wherein said first portion (25) is integral with said second portion (25) and wherein said first portion (24) and said second portion (25) are superimposed on each other and turned towards said housing volume (17) when said cover (16) is closing said housing volume (17); a second back reinforcement appendage (23) comprising a first portion (26) integral with said second side wall (13) and a second portion (27) integral with said back wall (14), wherein said first portion (26) is integral with said second portion (27) and wherein said first portion (26) and said second portion (27) are superimposed on each other and turned towards said housing volume (17) when said cover (16) is closing said housing volume (17); a first cover reinforcement appendage (28) comprising a first portion (30) integral with said first auxiliary cover wall (19) and a second portion (31 ) integral with said first portion (30) and with said third auxiliary cover wall (21 ), wherein said first portion (30) and said second portion (31 ) are superimposed on each other and turned towards said front wall (15) when the cover (16) is closing said housing volume (17); a second cover reinforcement appendage (29) comprising a first portion (32) integral with said second auxiliary cover wall (20) and a second portion (33) integral with said second portion (33) and with said third auxiliary cover wall (21 ), wherein said first portion (32) and said second portion (33) are superimposed on each other and turned towards said front wall (15) when the cover (16) is closing said housing volume (17).

2. Box (10) according to claim 1 , wherein said first back reinforcement appendage (22) has a triangular shape and has a vertex placed at said base wall (1 1 ) and wherein said second back reinforcement appendage (23) has a triangular shape and has a vertex placed at said base wall (1 1 ) at least when said cover (16) is closing said housing volume3. Box (10) according to any one of the preceding claims, wherein said first portion (24) of said first back reinforcement appendage (22) is interposed between said first side wall (12) and said second portion (25) of said first back reinforcement appendage (22) when said cover (16) is closing said housing volume (17), and wherein said first portion (26) of said second back reinforcement appendage (23) is interposed between said second side wall (13) and said second portion (27) of said second back reinforcement appendage (23) when said cover (16) is closing said housing volume (17).

4. Box (10) according to any one of the preceding claims, wherein said first auxiliary cover wall (19) is parallel to said first side wall (12), said second auxiliary cover wall (20) is parallel to said second side wall (13) and said third auxiliary cover wall (21 ) is parallel to said front wall (15) when the cover (16) is closing said housing volume (17).

5. Box (10) according to claim 4, wherein when the cover (16) is closing said housing volume (17), said first side wall (12) is interposed between said housing volume (17) and said first auxiliary cover wall (19), said second side wall (13) is interposed between said housing volume (17) and said second auxiliary cover wall (20) and said front wall (15) is interposed between said housing volume (17) and said third auxiliary cover wall (21 ).

6. Box (10) according to any one of the preceding claims, wherein said cover (16) comprises a first connecting appendage (40) integral with said first auxiliary cover wall (19) and integral with said second portion (25) of said first back reinforcement appendage (22); said first connecting appendage (40) being arranged interposed between said first side wall (12) and said first auxiliary cover wall (19) when the cover (16) is closing said housing volume (17) and being arranged aligned with said first auxiliary cover wall (19) when the cover (16) is opening said housing volume (17).

7. Box (10) according to claim 6, wherein said cover (16) comprises a second connecting appendage (41 ) integral with said second auxiliary cover wall (20) and integral with said second portion (27) of said second back reinforcement appendage (23); said second connecting appendage (41 ) being arranged interposed between said second side wall (13) and said second auxiliary cover wall (20) when the cover (16) is closing said housing volume (17) and being arranged aligned with said second auxiliary cover wall (20) when the cover (16) is opening said housing volume (17).

8. Box (10) according to any one of the preceding claims, comprising a first front reinforcement appendage (34) comprising a first portion (36) integral with said first side wall (12) and a second portion (37) integral with said front wall (15), wherein said first portion (36) is integral with said second portion (37) and wherein said first portion (36) and said second portion (37) are superimposed on each other and turned towards said housing volume (17).

9. Box (10) according to claim 8, comprising a second front reinforcementappendage (35) comprising a first portion (38) integral with said second side wall (13) and a second portion (39) integral with said front wall (15), wherein said first portion (38) is integral with said second portion (39) and wherein said first portion (38) and said second portion (39) are superimposed on each other and turned towards said housing volume (17).

10. Flat blank (100) for making a box, the blank comprising: a central portion (101 ), a first side portion (102) and a second side portion (103) wherein said first side portion (102) is connected to said central portion (101 ) by a single first continuous longitudinal folding line (104) and wherein said second side portion (103) is connected to said central portion (101 ) by a single second continuous longitudinal folding line (105) and wherein said central portion (101 ), said first side portion (102) and said second side portion (103) have an identical length; wherein said central portion (101 ) comprises: a first panel (106), a second panel (107), a third panel (108) and a fourth panel (109) connected to each other by respective transverse folding lines, wherein said third panel (108) is interposed between said first panel (106) and said fourth panel (109) and wherein when said box is in an upright form said first panel (106) defines a base wall, said second panel (107) defines a front wall, said third panel (108) defines a back wall and said fourth panel (109) defines a cover wall; wherein said first side portion (102) comprises a fifth panel (11 1 ) connected to said first panel (106) by said first continuous longitudinal folding line (104), wherein when said box is in an upright form said fifth panel (11 1 ) defines a first side wall; wherein said second side portion (103) comprises a sixth panel (1 16) connected to said first panel (106) by said second continuous longitudinal folding line (105), wherein when said box is in an upright form said sixth panel (1 16) defines a second side wall; wherein said first side portion (102) comprises a seventh panel (1 13) of quadrilateral shape comprising a first portion (113a) connected to said fifth panel (1 11 ) by a transverse folding line and comprising a second portion (113b) connected to said third panel (108) by said first continuous longitudinal folding line (104), wherein said first portion (113a) is connected to said second portion (113b) and wherein said seventh panel (113) comprises a single oblique folding line; said oblique folding line dividing said seventh panel (113) into said first portion (113a) and said second portion (1 13b); wherein said second side portion (103) comprises an eighth panel (118) of quadrilateral shape comprising a first portion (1 18a) connected to said sixth panel (116) by a transverse folding line and comprising a second portion (118b) connected to said third panel (108) by said second continuous longitudinal folding line (105), wherein said first portion (118a) is connected to said second portion (1 18b) and wherein said eighth panel (1 18) comprises a single oblique folding line, said oblique folding line dividing said eighthpanel (118) into said first portion (118a) and said second portion (1 18b); wherein when said box is in an upright form said seventh panel (1 13) defines a first back reinforcement appendage and said eighth panel (1 18) defines a second back reinforcement appendage; wherein the first side portion (102) comprises a fourteenth panel (114) which, when the box is in an upright form, defines a first cover reinforcement appendage, the fourteenth panel (114) comprising a first portion (114a) and a second portion (114b); wherein the second side portion (103) comprises a fifteenth panel (119) which, when the box is in an upright form, defines a second cover reinforcement appendage, the fifteenth panel (119) comprising a first portion (119a) and a second portion (119b).1 1. Blank (100) according to claim 10, wherein said first side portion (101 ) comprises a ninth panel (112) connected to said fourth panel (109) by said first continuous longitudinal folding line (104) and wherein said second side portion (102) comprises a tenth panel (1 17) connected to said fourth panel (109) by said second continuous longitudinal folding line (105); wherein when said box is in an upright form said ninth panel (112) defines a first auxiliary cover wall and said tenth panel (117) defines a second auxiliary cover wall.

12. Blank (100) according to claim 11 , wherein said first side portion (101 ) comprises an eleventh panel (121 ) connected to said ninth panel (112) by an oblique folding line and connected to said seventh panel (1 13) by a transverse folding line and wherein said second side portion (102) comprises a twelfth panel (122) connected to said tenth panel (117) by an oblique folding line and connected to said eighth panel (118) by a transverse folding line; wherein when said box is in an upright form said eleventh panel (121 ) defines a first connecting appendage and said twelfth panel (122) defines a second connecting appendage.

13. Blank (100) according to claim 12, wherein said eleventh panel (121 ) has shape and dimensions identical to said first portion (1 13a) of said seventh panel (1 13) and wherein said twelfth panel (122) has shape and dimensions identical to said first portion (118a) of said eighth panel (1 18).

14. Blank (100) according to any one of claims 10 to 13, wherein a plurality of through holes (123) placed between said first panel (106) and said second panel (107) and between said first panel (106) and said third panel (108) are arranged along said first continuous longitudinal folding line (104) and said second continuous longitudinal folding line (105).

15. Blank (100) according to claim 10, wherein said first portion (114a) of the fourteenth panel (114) is connected to the second portion (114b) of the fourteenth panel (114) by a single oblique folding line and wherein said first portion (1 19a) of the fifteenth panel (1 19) is connected to the second portion (119b) of the fifteenth panel (1 19) by asingle oblique folding line.

16. Blank (100) according to any one of claims 10 to 15, wherein the first side portion (102) comprises a sixteenth panel (1 15), which when the box is in an upright form, defines a first front reinforcement appendage, having a first portion (1 15a) connected to the fifth panel (11 1 ) by a transverse folding line and a second portion (115b) connected to the second panel (107) by a single longitudinal folding line; and wherein the second side portion (103) comprises a seventeenth panel (120), which when the box is in an upright form, defines the second front reinforcement appendage, having a first portion (120a) connected to the sixth panel (1 16) by a transverse folding line and a second portion (120b) connected to the second panel (107) by a single longitudinal folding line.

Images