JPH09505018A - Carton made of sheet material with fixing cover and blank for carton making - Google Patents

Abstract

(57) Summary A wrapping material (31) made of sheet material such as corrugated cardboard and including two opposing upper flaps (36) and two opposing lower flaps (37) below it. The lid was fitted with two slots on the upper flaps on both sides of the lid, one side cut out from the lower flap and the other side rotatably mounted above the folding line of the lower flap and parallel to the folding line. And two tabs (41). The tabs can be folded onto the respective tabs of the upper flap so that the tabs engage at opposite ends in corresponding slots (40) in the lid.

Description

Detailed Description of the Invention    Carton made of sheet material with fixing cover and blank for carton making   The present invention has a polygonal cross section and is made of corrugated cardboard sheet material or the like, A carton including a side, a bottom and a cover, with two opposing upper flaps and It relates to a carton containing two opposite lower flaps on the underside of the upper flap. Up Each of the flaps is connected to the lateral surface by a fold line, and the cover is   On both sides of the cover, the upper flap is located at a distance d from the folding line of the lower flap. Two slits formed parallel to the fold line in the   One side is cut out from the lower flap, and the other side is cut into the folding line of the lower flap. Two tabs hinged in parallel with both ends on the upper flap Overlapping and penetrating into each corresponding cover slit tab including.   The present invention also provides a blank for making a carton as described above. Material). This is a polygonal carton with more than 3 sides, eg notches It is a carton with 8 sides including 4 corners, and it is not completely filled and It is especially important as a polygonal carton that can be deformed when stacking. Was However, the present invention is not limited to such polyhedra.   By hanging the box cover, you can avoid unexpected deformation after hanging. Fastening systems are already known which are capable. Especially when fixing with adhesive tape is important.   However, such systems have drawbacks. In fact, these systems Requires another additional component in the carton, the adhesive tape. Therefore, It requires a minute cost and manufacturing operation.   Cartons of the above type are also known (US Pat. No. 3,302,853), which Also has drawbacks. In fact, this kind of tab fixing should be done with the wide part of the tab , Closed cover as it is done by hooking into the corresponding slit To It can be effectively hung up, but its contents can be labeled or To restart the carton, for example to add the contents of an already closed carton Is making it difficult.   It is an object of the present invention to secure the cover to properly square the carton during assembly. The cover can be set easily and easily without incurring extra cost. Practical provision to give a system that can be locked and unlocked reliably and again Providing boxes and blanks that are superior to the known ones in that they meet particular requirements It is.   To this end, the carton provided by the present invention is specifically a corrugated cardboard. A carton with a polygonal cross section made of sheet material, etc. It is of a type that has. This carton is designed with the ends of each tab having a pointed shape. By the way, if the distance h from the bending line of the tab is less than 5 mm, It has a feature that it is installed so as to come into contact with the edge of the slit from below.   In a preferred embodiment, the means comprises one or more of the following configurations. ・ H is about 2 mm or less. -Each slit consists of two half slits facing each other at the edge of the upper flap, The tabs are laterally centered with respect to the corresponding lower flaps. ・ Each half-slit is paired at the end located far from the other half-slit. It is extended by a cutting line in the corresponding upper flap. This cutting line is specific Facing the fold line of the lower flap of the corresponding tab, up to the above half slit over a distance And is located at a right angle to the corresponding edge of the tab.   With this configuration, the system can be used for repeated fixing and unlocking. While the proper operation is possible, the fold lines on the tabs above It can give great elasticity to the hinges. -Each tab is substantially T-shaped, and the T-shaped horizontal bar is the fold of the tab on the corresponding surface. It is connected to the bend line. · Each tab is an isosceles end that ends with a rectangular or triangular end with an obtuse apex It has a trapezoidal shape. The bottoms being flaps (ie two pairs) which are each connected laterally by a fold line Tab inside with facing inner flap and two opposing outer flaps) It includes two parts with slotted outer flaps in complementary shapes.   The present invention also provides a polygonal cross section made of corrugated cardboard sheet material or the like. Blank for forming a double tone. This blank A lateral panel integrally connected by a first parallel fold line, ・ Connecting to one side of the lateral panel by a second bending line orthogonal to the first bending line A first set of flaps, suitable for forming the bottom of the carton, -Connected to the other side of the lateral panel by a third fold line orthogonal to the first fold line A second set of flaps suitable for forming the carton lid, A second set consisting of two so-called upper lateral flaps intersecting the loose lower lateral flaps With flaps Including       Each of the lower flaps has one side cut from the flap and the other side A fold line that is substantially coincident with the third fold line of the flap causes the adjacent panel to Including connected tabs,       The upper flap edges on the far side of the third fold line are respectively Two slots on either side, at a specific distance d from the lateral edge of the corresponding flap. Including the part This bracket is       The ends of the tabs are sharpened and the pointed end and the panel Tab length d'between the fold line of the tab connected to the slightly larger than d It is characterized by the following.   The present invention is illustrated by way of non-limiting illustration, by reference to the following examples , Understand better. The following description refers to the following drawings.   FIG. 1 is a plan view of a blank according to an embodiment of the present invention.   2 to 5 show a carton lid made from a blank of the type shown in FIG. The steps for forming and fixing are shown.   FIG. 6 is a plan view of another embodiment of a blank according to the present invention.   FIG. 7 is a plan view of a blank according to another embodiment of the present invention.   FIG. 8 shows the fixing of the tabs for fixing the cover obtained using the blank of FIG. Elastic release when in place and by applying a simple pressure to the cover FIG. 3 is a perspective view of two parts when being performed.   The blank 1 shown in FIG. 1 has two large panels intersecting two small panels 4, 5. Suitable for forming four main panels including panels 2 and 3 and carton notch corners And a string of 8 lateral panels including 4 intermediate panels 6 as described above. Mosquito These intermediate panels form a large panel and a small panel, respectively. Comes between the panels.   In the embodiment described here, a tab 7 suitable for being fixed to the intermediate panel 6 is provided. Ends on one side of the panel string. This panel 6 is a panel viewed from the tab 7. Adjacent to the main panel 2 located on the other side of the rustring. These panels are first They are connected together by parallel folding lines 8.   This blank sits on one side of the panel and forms the bottom of the carton. First set of flaps 9 intended for and the cart located on the other side of the panel It consists of a second set of flaps 10 intended to form a cover of the flap.   To be more precise, the first set 9 is connected to the lateral sides of the four main panels with a fold line 11. Included are four substantially rectangular flaps. These flaps are first bent Two large flaps 12, 13 and a small pad connected in line, ie to the large panels 2, 3. It is perpendicular to the two small flaps 14, 15 connected to the flannel 4, 5.   The intermediate panel 6 does not have its own flap.   In the example specified here, two large flaps 12, 13 are formed. It has a lateral width equal to or substantially greater than half the width of the carton.   The large flaps 12, 13 are the same. Each large flap has three sides 12.1 12.2, 12.3 (13.1, 13.2, 13.3), that is, straddling the flap Two lateral sides 12.1, 12.3 (13.1, 13.3) and corresponding A side portion 12 of the flap of the panel, which is remote from the second folding line 11 and is parallel to this. .2 (13.2).         Each lateral side of the large flap faces the outside of the flap from the second fold line. Panel which is inclined at 45 ° and is adjacent to the carton when the carton is formed. A first portion mounted to cover the. This first part is perpendicular to the second fold line Extended by a second part, said lateral side terminating at said angle and the edge of notch 16 A first set-back 17 towards the inside of the flap by rolling, rolling etc., eg For example, with a second recess 18 that is also oriented inside the flap at a right angle, The length of the parallel side edges 12.2, 13.2 between the upper ends 16 'of the notches is L.   In the embodiment specified here, the small flaps 14, 15 are themselves identical and rectangular. It is. These lateral sides are also a distance from the corresponding lateral side of the large panel, eg For example, it is a few mm away from each other.   The flaps of the second set 10 have third fold lines 19, 20, 2 perpendicular to the first fold line 8. 1 connected to four main panels. If more specific, A second set of flaps are provided on each large panel by fold lines 19 as detailed in. The two large flaps 22 and 23 connected and connected to each other and the small flaps by the folding lines 20 and 21. Two small flaps 24, 25 respectively connected to the flannel.   Each large flap 22, 23 has three sides 22.1, 22.2, 22.3 and 2 3.1, 23.2, 23.3, ie the two lateral sides (22.1 and 22.3; 2) 3.1 and 23.3) and the distant side parallel to the third fold line (22.2, 23.2) Including a side portion.   Each lateral side is inclined 45 ° outward from the third fold line and a carton is formed. And a third fold line installed to cover the corresponding intermediate panel when Including a second portion perpendicular to the flap and an end portion 26 notched toward the interior of the flap. No.   Furthermore, the edges of the sides 22.2 and 23.2 are each two rectangular or substantially Includes upper rectangular isomorphic slits 27, 28. These slits are perpendicular to the above edge As well as one from the lateral edges 22.1, 22.3 on the sides of the flap on both sides, Is located at a certain distance d from the lateral edges 23.1, 23.3, for example a length of 3 to 5 mm It has a length x / 2 and a width e.   The width L of the flaps 22, 23 between the fold line 19 and the edges 22.2, 23.2 is the car These are equal to half the width of the ton's cover, so that when the carton is formed, The edges of the flap 22 are joined and the slits 27, 28 of the flap 22 are Two slits 27 and 28, which face each other, straddle the joints of both flaps. Form one parallel slit.   The small flaps 24, 25 have the same width 1 as themselves, eg the large flaps 22, 23. Is a rectangle. Each of these small flaps includes a tab 29. Each tab 29 Has one side cut out from the flap and the other side slightly toward the inside of the flap. Folded lines that are offset to the crab (eg, 1 to 2 mm with respect to the fold line 0) It is connected to the panel 4 or 5 by 21. Fold line 20 is a flap Spread on both sides of the tab centered with respect to.   This tab has a pointed end 30 with an obtuse angle, for example 160 ° to 170 °. Including. The distance between the fold line 21 and the end of the tip 30 is d '. Where d'is d Slightly larger, for example 2-3 mm.   Moreover, this tab is complementary to the shape of the two mating symmetrical notches 16. It has a T-shape.   2 to 5 show a notched corner 32 formed of a blank of the type shown in FIG. The shape of the carton 31 is shown.   The carton 31 including the main lateral surface 33, the bottom 34, and the cover 35 has two opposite sides. It includes the same upper flap 36 and two opposite, identical lower flaps 37. This These flaps 36, 37 are connected laterally by fold lines 38, 39, respectively. Have been.   4 and 5 show the carton cover provided on each side of the cover. The details are shown below. This cover consists of two flaps formed on the upper flaps on both sides of the cover. Includes lit 40. The slit 40 is a fold line 39 of the lower flap 37 on the surface. Parallel to, and at a distance d from this fold line.   The cover also includes two tabs 41. These tabs 41 are flat on one side. Which are cut out from the pouch 37, and the other side is along the fold lines 42, respectively. , And slightly above the bending line 39 of the lower flap 37, the flap 37 is It is hinged on the corresponding lateral surface.   These tabs overlap the upper flaps and these flaps themselves The tabs of are overlapped with the cut out complementary parts. The ends 43 of these tabs have slits 4 Plugged in 0.   The bottom of the carton itself was connected to the corresponding lateral surfaces by fold lines 46 and 47, respectively. It includes two small inner flaps 44 and two large outer flaps 45.   The bottom contains two slots 48 with a complementary shape to the tab shape. , When stacking cartons on top of each other, these tabs should be Into the slot of the carton. As a result, mutual It becomes possible to hang it up.   Shown in FIG. 6 is another blank 50 embodiment in accordance with the present invention.   The blank 50 shown here is the only four parts for forming a rectangular carton. It only includes a flannel 51 and an end gluing tab 52.   The flaps 53 forming the cover have the same width in this example. These flags Two of the tabs include generally rectangular tabs 54. The ends of the tabs will be mentioned above when joined. Suitable for cooperating with the half slit 55 forming the cover slit.   The flap 56 forming the bottom of the carton is not notched in this example. this Is a conventional type used as an American carton. See Figures 2-5 The method of forming the bottom and the method of forming the cover of the carton according to the present invention will be described below. I will tell.   The lateral wall of the carton is formed by wrapping it around a mandrel. At the beginning, at the bottom The inner flap is folded down. Next, as shown in the schematic diagram in FIG. The folds are sequentially folded down onto the inner flap.   The carton is then filled from the top. Then the lower flap of the cover is bent You. Due to the offset between the fold lines 20, 21, line 20 is also fold line 2 It will be more prominent than 1. The tab remains in the upright or vertical state (Fig. 3 reference).   Then the upper flap of the cover is folded down and the edges of the flap are joined (See FIG. 4).   Finally, the tabs whose ends can enter into the slits are folded down.   FIG. 7 shows a very thick, thicker than 5 mm according to another embodiment of the invention. A hand double sided corrugated cardboard blank 60 is shown. This is a parallel fold line 65 It includes four rectangular transverse panels 61, 62, 63, 64 connected in pairs.   The blank is laterally terminated on one side with a gluing tab 66 and transversely Is connected to one side of each lateral panel by a second fold line 68 perpendicular to the first flap. Four first set flaps 67 intended to be followed to form the bottom of the carton; A carton cover connected to the other side of the panel by a third fold line 70 And a second set of four flaps 69 intended to form a.   The set 69 consists of two rectangular lateral flaps 71, 72 called upper flaps and a lower flap. It consists of two lateral flaps 73, 74 called directional flaps.   The lower flap is, for example, an isosceles whose angle α of the base is between approximately 88 ° and approximately 70 °. Triangular and trapezoidal.   These lower flaps, for example, have the same length as the upper flaps and are Cut out from the flap and connect to the corresponding panel (62 or 64) Included tab 75 (see FIG. 1).   Each tab preferably has a height d0 and a bottom (large trapezoidal side) angle of β. Includes a lower portion of an isosceles trapezoid. This base line substantially coincides with the bending line 70. Angle β Between about 85 ° and about 60 °, for example, 80 °.   This tab terminates in a triangular end portion 76. The obtuse vertical angle is about 160, for example. In degrees, the small height i is, for example, 2 mm.   The height of the tab (distance d '= d0 + i) is, for example, half the width H of the flap.   The upper flaps 71 and 72 themselves are provided on both sides of the edge 77 on the far side from the bending line 70. It includes a rectangular slit 78 perpendicular to the rim 77. These slits start at edge 77 Maru Its inner edge 75 (facing the center of the flap) is closest to the flap Is located at a distance from the lateral edge 79 which is at least substantially equal to d0.   Each half-slit 78 is angled toward an adjacent edge 79 and fold line 70. It terminates at a cutting line 80 having a specific length 1 (for example, about 1 to 2 cm).   The set 67, intended to form the bottom of the carton itself, consists of two isosceles trapezoidal flaps. Two substantially rectangular flaps 81 that pair and intersect the wraps 83, 84. , 82.   The flaps 81 and 82 are respectively two parts parallel to the second bending line 68. Includes a configured outer edge 85 (two portions may be the same). There are two parts on this edge There is a recess in the minute.   The 81, 82 flaps are also slotted to complement the half-tab shape seen above. Included at each end are raised portions 87,88.   The fixing / unfixing operation of the cover will be described below with reference to FIG.   For this purpose, the presence of the cutting line 80 facilitates repeated opening and closing of the carton 89. Become.   To release the fixing of the tab 75, press the upper flaps 71 and 72 adjacent to the tab 75. Alternatively, it is done by pushing the center of the carton cover. By doing this The inner part 91 of the upper flap, which is defined by the line 80, is a spring with a restoring force. Underside of the upper panel, acting and past a slit 90 consisting of two half slits 78 Then, the tabs whose ends are packed together are elastically disengaged by themselves.

[Procedure of Amendment] Article 184-8 of the Patent Act [Submission date] November 7, 1995 [Correction contents] Translation of page 1 line 19 to page 2 line 13   By hanging the box cover, you can avoid unexpected deformation after hanging. Fastening systems are already known which are capable. Especially when fixing with adhesive tape is important.   However, such systems have drawbacks. In fact, these systems Requires another additional component in the carton, the adhesive tape. Therefore, It requires a minute cost and manufacturing operation.   Cartons of the type described above are also known (US Pat. No. 3,302,853), which is also Has disadvantages. In fact, such tab fixing accommodates the wide part of the tab. It is done by hooking in the slit, so the closed cover is effective It is possible to hang it up, but label its contents or Difficult to restart the carton, for example to add the contents of the closed carton to the Making it difficult.   The fastening system is also according to French patent 083,621 and US patent 2,167,917. Are known. These systems feature a lateral protrusion underneath the edge of the surface of the slit. It has a tab for hanging. Also in this case, once fixed, it can be opened again. I have a flaw that I can not.   It is an object of the present invention to secure the cover to properly square the carton during assembly. The cover can be set easily and easily without incurring extra cost. Practical provision to give a system that can be locked and unlocked reliably and again Providing boxes and blanks that are superior to the known ones in that they meet particular requirements It is.   To this end, the carton provided by the present invention is specifically a corrugated cardboard. A carton with a polygonal cross section made of sheet material, etc. It is of a type that has. This carton is designed with the ends of each tab having a pointed shape. By the way, if the distance h from the bending line of the tab is less than 5 mm, It has a feature that it is installed so as to come into contact with the edge of the slit from below. The scope of the claims 1. Polygonal cut with lateral surface (33), bottom (34) and cover (35) Cartons (31, 8) made of corrugated cardboard sheet material, etc. 9), the carton comprising two opposing upper flaps (36) and the upper flap. Including two lower flaps (37) opposite each other in the lower position of the flap. Each fold line (38, 39) is connected to the lateral surface and the cover (35 )But       Formed in the upper flaps (36, 71, 72) on both sides of the cover, and Is it at a distance (d =, d0) from the fold line (39) of the lower flap (37)? Two slits (40, 90) parallel to this,       One side is cut from each of the lower flaps and the other side is cut from each of the lower flaps. Two tabs (41, 7) hinged parallel to the fold line (39) of the lower flap. 5) so as to overlap the upper flaps and to pair the covers, respectively. A tab exposing the end (43) that penetrates the optional slit   In a carton made to contain       The ends (43) of each tab are pointed and       Between the pointed end and the fold line of the tab of the panel (panel to which the tab is fixed) The tab length d'between is slightly greater than the distance (d, d0) and the ends are respectively A corresponding strip located laterally from the fold line of the tab over a distance h of about 5 mm or less. Abut on the rim edge from below   A carton, characterized in that: 2. The carton according to claim 1, wherein h is about 2 mm or less. Carton to do. 3. In the carton according to any of the preceding claims, each slit (40) is , Two half-strips at the edge of the upper flap (36) facing each other It consists of a rit such that the tab (41) is lateral to the corresponding lower flap (37). Is centered in the direction   A carton, characterized in that: 4. The carton of claim 3, wherein each half slit has a corresponding upper flap. By the score line (80) provided on the other side, the end on the far side seen from the other half slit. The part is extended and the score line covers a distance to the half slit Facing the fold line of the lower flap of the tab (75) that is Located on the corner   A carton, characterized in that: 5. Carton according to any of the preceding claims, wherein each tab (41) is substantially Is T-shaped and the T-shaped horizontal line is connected to the tab fold line (39) on the corresponding surface. ing   A carton, characterized in that: 6. A carton according to any of claims 1 to 4, wherein each tab (75) is , Almost rectangular or isosceles trapezoidal, terminating in a triangle with an obtuse apex Carton, characterized in that: 7. In the carton according to any of the preceding claims,       The bottom (34) is connected to the lateral surface by fold lines (46, 47) respectively. Bottom (34) consisting of flaps (44, 45), i.e. two opposing interiors Consisting of a flap (44) and two opposing outer flaps (45),       The outer flap, the bottom of which has a shape complementary to that of the tab (41). Includes two parts (48) slotted from the   A carton, characterized in that: 8. Corrugated cardboard sheet intended to form cartons with polygonal cross section It is a blank manufactured from       Lateral panels (2, 3, 4, ...) Connected to each other via first parallel fold lines. 5, 6; 51; 61, 62, 63, 64),       One side is connected to the lateral panel by a second fold line orthogonal to the first fold line A first set of flaps suitable for forming a first set of flaps to form the bottom of the carton. And       The other side is attached to the lateral panel by a third fold line orthogonal to the first fold line. A second set of flaps (10, 53, 69) to be connected to cover the carton Suitable for forming two so-called lower lateral flaps (24, 25; 73, 74) and two so-called upper lateral flaps (22, 23; 71, 7) 2nd flap composed of 2)   Including       Each of the lower flaps has tabs (29,5, 5) cut from the flap on one side. 4, 75) and the other side substantially coincides with the third fold line of the flap It is connected to the adjacent panel by a fold line,       The edge (22.2, 23.2) of the upper flap that is remote from the third fold line. 77), on either side of the upper flap, from the corresponding lateral edges of the flap; Two slit parts (27, 28; 55; 78) at the position of distance (d, d0) Including   In the blank made       The end of the tab is pointed, and the end of the point and the panel (the tab is The length d ′ of the tab between the tab bending line of the fixed panel) is the distance (d, It is slightly larger than d0) by a distance h of about 5 mm or less.   A blank that is characterized. 9. A blank according to claim 8, wherein each half slit (78) has a corresponding top. The outer edge (77) of the side flaps (71, 72) at the far end portion thereof, It is extended by a cutting line provided on the flap over a certain distance. Toward the fold line (70) of the upper flap and closest to the half slit Inclined toward the lateral edge of the upper panel and forming the carton Installed so that it is at a right angle to the corresponding edge of the tab   A blank that is characterized. Ten. Blank according to any of claims 8 and 9, wherein each tab (29) is Substantially T-shaped, slightly inward from the corresponding third fold line (20) At a position shifted to, parallel to this bending line and the central portion of the third bending line The T-shaped horizontal bar is connected to   A blank that is characterized. 11. A blank according to any one of claims 8 and 9, wherein each tab (54, 75) is almost rectangular or isosceles, terminating in a triangle with an obtuse apex Trapezoid   A blank that is characterized. 12． A blank according to any one of claims 8 to 11, wherein the upper flap The side portion of the bottom flap, which corresponds to the side surface provided on the other side of the Includes complementary shaped notches (16; 87,88)   A blank that is characterized.

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Claims (1)

[Claims] 1. Polygonal cut with lateral surface (33), bottom (34) and cover (35) Cartons (31, 8) made of corrugated cardboard sheet material, etc. 9), the carton comprising two opposing upper flaps (36) and the upper flap. Including two lower flaps (37) opposite each other in the lower position of the flap. Each fold line (38, 39) is connected to the lateral surface and the cover (35 )But       Formed in the upper flaps (36, 71, 72) on both sides of the cover, and At and at a distance d0 from the fold line (39) of the lower flap (37) Two parallel slits (40, 90),       The lower flap cut out from the lower flap on one side of the lower flap and Two, each hinged on the other side parallel to the fold line (39) Tabs (41, 75) on the upper flap and the ends ( 43) two tabs that are installed to penetrate into the corresponding cover slits   In a carton made to contain       The end (43) of each tab is sharpened so that the distance h is about 5 mm or less. Abut from below on the edge of the corresponding slit located laterally from the fold line of the tab Installed to do   A carton, characterized in that: 2. The carton according to claim 1, wherein h is about 2 mm or less. Carton to do. 3. In the carton according to any of the preceding claims, each slit (40) is , Two half-strips at the edge of the upper flap (36) facing each other It consists of a rit such that the tab (41) is lateral to the corresponding lower flap (37). Is centered in the direction   A carton, characterized in that: 4. The carton of claim 3, wherein each half slit has a corresponding upper flap. The cut line (80) provided on the The end portion is extended and the score line is paired over a distance to the half slit. Facing the fold line of the lower flap of the corresponding tab (75) and corresponding edge of the tab. Located at a right angle   A carton, characterized in that: 5. Carton according to any of the preceding claims, wherein each tab (41) is substantially Is T-shaped and the T-shaped horizontal line is connected to the tab fold line (39) on the corresponding surface. ing   A carton, characterized in that: 6. A carton according to any of claims 1 to 4, wherein each tab (75) is , Almost rectangular or isosceles trapezoidal, terminating in a triangle with an obtuse apex To   A carton, characterized in that: 7. In the carton according to any of the preceding claims,       The bottom (34) is connected to the lateral surface by fold lines (46, 47) respectively. Bottom (34) consisting of flaps (44, 45), i.e. two opposing interiors Consisting of a flap (44) and two opposing outer flaps (45),       The outer flap, the bottom of which has a shape complementary to that of the tab (41). Includes two parts (48) slotted from the   A carton, characterized in that: 8. Corrugated cardboard sheet intended to form cartons with polygonal cross section It is a blank manufactured from       Lateral panels (2, 3, 4, ...) Connected to each other via first parallel fold lines. 5, 6; 51; 61, 62, 63, 64),       One side is connected to the lateral panel by a second fold line orthogonal to the first fold line A first set of flaps suitable for forming a first set of flaps to form the bottom of the carton. And       The other side is attached to the lateral panel by a third fold line orthogonal to the first fold line. A second set of flaps (10, 53, 69) to be connected to cover the carton Suitable for forming two so-called lower lateral flaps (24, 25; 73, 74) and two so-called upper lateral flaps (22, 23; 71, 7) 2nd flap composed of 2)   Including       Each of the lower flaps has tabs (29,5, 5) cut from the flap on one side. 4, 75) and the other side substantially coincides with the third fold line of the flap It is connected to the adjacent panel by a fold line,       The edge (22.2, 23.2) of the upper flap that is remote from the third fold line. 77), on either side of the upper flap, from the corresponding lateral edges of the flap; Two slit parts (27, 28; 55; 78) at the position of distance (d, d0) Including   In the blank made       The end of the tab is pointed, and the end of the point and the part to which the tab is fixed are fixed. The length d ′ of the tab between the tab bending line related to the flannel is the distance (d, d0). Slightly larger   A blank that is characterized. 9. A blank according to claim 8, wherein each half slit (78) has a corresponding top. The outer edge (77) of the side flaps (71, 72) at the far end portion thereof, It is extended by a cutting line provided on the flap over a certain distance. Toward the fold line (70) of the upper flap and closest to the half slit Inclined toward the lateral edge of the upper panel and forming the carton Installed so that it is at a right angle to the corresponding edge of the tab   A blank that is characterized. Ten. Blank according to any of claims 8 and 9, wherein each tab (29) is Substantially T-shaped, slightly inward from the corresponding third fold line (20) At a position shifted to, parallel to this bending line and the central portion of the third bending line The T-shaped horizontal bar is connected to   A blank that is characterized. 11. A blank according to any one of claims 8 and 9, wherein each tab (54, 75) is almost rectangular or isosceles, terminating in a triangle with an obtuse apex Trapezoid   A blank that is characterized. 12． A blank according to any one of claims 8 to 11, wherein the upper flap The side portion of the bottom flap, which corresponds to the side surface provided on the other side of the Includes complementary shaped notches (16; 87,88)   A blank that is characterized.