JP5003243B2 - paper box - Google Patents

Description

  The present invention relates to a paper box for storing cigarettes, caramel, chocolate confectionery, and the like, the head of which can be freely opened and closed, and the re-sealing can be completely and easily assembled by hand.

  2. Description of the Related Art Conventionally, as one of paper box forms for storing tobacco, caramel, chocolate confectionery, and the like, a paper box that can open and close the head of the paper box freely has been widely proposed. For example, there are a double box (for example, see Patent Document 1 and Patent Document 2) and a single box (for example, see Patent Document 3), but the former has a two-piece configuration. However, since many papers are used, the cost is increased, and it is difficult to automatically produce the paper with a machine such as a sack pasting machine, and the resealability is inferior. Next, since the latter has a complicated blank form, the manufacturing process is complicated, the manufacturing cost is high, and the resealability is incomplete.

  Therefore, as a method for solving these problems, the entire structure is composed of one blank, the head does not open excessively, and the structure is extremely simple as a whole. Paper boxes (see Patent Document 3 and Patent Document 4) that can be manufactured automatically without using a simple machine and that can store a product therein have been proposed.

  However, all of these paper boxes are incompletely resealable because the lock mechanism connected to the upper lid is simply hooked and locked to the stopper piece connected to the front plate.

Prior art documents are shown below.
Japanese Utility Model Publication No. 47-34578 Japanese Utility Model Publication No. 50-154323 Japanese Patent Laid-Open No. 51-14475 Japanese Utility Model Publication No. 58-46018 Japanese Utility Model Publication No. 58-55137

  The present invention is intended to solve such problems of the prior art. As a paper box for storing tobacco, caramel, chocolate confectionery, etc., the head can be freely opened and closed, and resealing is complete and easy. An object is to provide a paper box that can be assembled by hand.

The present invention has been made to solve the above-mentioned problems, and the invention according to claim 1 of the present invention is characterized in that the glue piece (3) is provided on one side of the surface plate (1) and the other side is provided. A first side plate (4), a back plate (2), and a second side plate (5) are connected to each other through crease lines (a, b, c, d), and the upper end of the front plate (1). The stopper piece (6) is connected to the lower end through the crease line (e), the lower cover piece (7) and the insertion piece (8) are connected to the lower end through the crease line (f, g). A box body (A) formed by connecting ear flaps (9, 9) to the lower ends of the first side plate (4) and the second side plate (5) via crease lines (h, i), respectively; the upper top lid (10) of the back plate (2) of the box body (a), the front outer wall (11), the locking mechanism hole (18) and left and right upper edge, wherein the stopper piece enters Front inner wall having projections for vignetting the locking and (17, 17) (12), the upper lid reinforcing inner wall (13) respectively continuously provided via a fold line (k, l, m), said upper lid (10 ) Side walls (14, 14) having a slightly wider left and right width than the first side plate (4) and the second side plate (5) are connected to each other through crease lines (o, p). And engaging pieces (15, 15) having locking cuts (16, 16) at the upper left edge at the upper ends of the side walls (14, 14) via the crease lines (q, r), respectively. The paper box is characterized in that an openable and closable head (B) formed continuously is connected through a crease line (j).

According to the present invention, a glue piece is provided on one side of the front plate, a first side plate, a back plate, and a second side plate are provided on the other side via a crease line, and a stopper piece is provided on the upper end of the front plate. The lower cover piece and the insertion piece are connected to each other through the crease line, and the ear flap is attached to the lower ends of the first side plate and the second side plate. A box main body formed in a row, an upper lid, a front outer wall, a lock mechanism hole into which the stopper piece enters the upper end of the back plate of the box main body, and a locking projection provided on the left and right upper edges. A front inner wall and an upper lid reinforcing inner wall having a fold line are connected to each other, and both side walls having a slightly wider left and right width than the first side plate and the second side plate are disposed on both side ends of the upper lid via the crease line. Are connected to each other. A paper box that can be easily assembled by hand can be manufactured by connecting the opening and closing heads, which are formed by connecting the engaging pieces having the groove portions, respectively, via the crease line. In terms of function, the head can be freely opened and closed, the resealing is complete, the contents do not pop out, and a click feeling is provided at the time of sealing. Furthermore, in terms of manufacturing, since one existing sack pasting machine can be used, the equipment cost and installation space can be reduced, and an extremely inexpensive paper box can be manufactured.

  The embodiment of the present invention will be described in detail with reference to FIGS. 1 to 4, but is not particularly limited thereto.

FIG. 1 is a plan view showing an embodiment of a paper box blank according to the present invention, FIG. 2 is a perspective view showing the paper box assembled with the blank of FIG. 1 in an opened state, and FIG. 3 is a paper box according to the present invention. FIG. 4 is a perspective view showing a paper box assembled with the blank of FIG. 3 in an opened state.

As shown in FIG. 1, the paper box of one embodiment of the present invention has an adhesive strip (3) on one side of the front plate (1), a first side plate (4), and a back plate (2) on the other side. The second side plate (5) is connected to each other via the crease lines (a, b, c, d), and the stopper piece (6) is connected to the upper end of the surface plate (1) with the crease line (e). The lower cover piece (7) and the insertion piece (8) are connected to each other via the crease lines (f, g) at the lower end, and the first side plate (4) and the second side. A box body (A) in which ear flaps (9, 9) are connected to the lower end of the face plate (5) via crease lines (h, i), respectively, and the back plate (2) of the box body (A) upper lid (10) to the upper end of) the front outer wall (11), have the said locking mechanism hole (18) and the locking projections provided on the right and left upper edge stopper piece enters (17, 17) The front inner wall (12) and the upper lid reinforcing inner wall (13) are connected to each other through crease lines (k, l, m), respectively, and the first side plate (4) and the The left and right side walls (14, 14) that are slightly wider than the second side plate (5) are connected to each other via the crease lines (o, p), and the upper left side is located at the upper end of the side walls (14, 14). The opening / closing head (B) formed by connecting the engagement pieces (15, 15) having the locking notches (16, 16) at the end edges through the crease lines (q, r) is the crease line. A blank arranged continuously through (j) is produced.

  In order to assemble using the blank of this one embodiment, first, in the sack pasting process, after applying an adhesive to the outer surface of the blank margin piece (3) of the blank, the margin margin piece (3) and the crease line (a ) Is folded on the inner surface of the first side plate (4) and the back plate (2) of the blank along the crease line (b). In addition, the inner surface of the second side plate (5) connected to the back plate (2) via the crease line (d) is formed on the outer surface of the adhesive margin piece (3) along the crease line (d). The box body (A) blank is formed into a sleeve shape by folding and joining.

  Next, the first side plate (4) and the second side plate (5) of the sleeve-shaped box body are raised to form a case, and then the upper end of the back plate (2) of the box body (A). Assemble the open / close head (B) connected through the crease line (j) by hand.

  First, it has a locking cut (16, 16) on the upper left edge, which is connected to the left and right sides of the upper lid (10) of the opening / closing head (B) via a crease line (o, p). The side walls (14, 14) connecting the engaging pieces (15, 15) via the crease lines (q, r) are bent along the crease lines (o, p) at right angles respectively. Next, the engaging pieces (15, 15) are bent inward at right angles along the crease lines (q, r), and the locking cut portions (16, 16) are engaged with each other.

  Next, the front outer wall (11) connected to the upper lid (10) via a crease line (k) is bent inward at a right angle along the crease line (k), and the engagement piece (15 15) Overlay.

  Next, it has locking projections (17, 17) on the left and right upper edges connected to the front outer wall (11) via a crease line (l), and a locking mechanism hole (18). The front inner wall (12) having the inner wall (12) is bent 180 degrees inward along the crease line (l), overlapped on the front outer wall (11), and simultaneously connected to the front inner wall (12) via the crease line (m). The upper lid reinforcing inner wall (13) is overlapped on the inner surface of the upper lid (10), and the left and right locking projections (17, 17) are connected to the both side walls (14, 14) and the engagement piece. The opening / closing head (B) is assembled by engaging with the gap with (15, 15).

  Next, the top of the box body (A) is closed by folding and closing the opening / closing head (B) along the crease line (j), and filling the contents from the bottom of the box body (A), Ear flaps (9, 9) connected to the lower ends of the first side plate (4) and the second side plate (5) of the box body (A) via fold lines (h, i) A lower lid piece (7) which is bent inward at right angles along the crease lines (h, i) and is connected to the lower end of the surface plate (1) of the box body (A) via the crease line (f). The bottom portion of the box body (A) is bent at a right angle inside, and the insertion piece (8) connected to the lower end of the lower lid piece (7) via a crease line (g) is bent at a right angle inside. As shown in FIG. 2, a paper box (opened state) in which the contents (not shown) consisting of the box body (A) and the opening / closing head (B) are stored is completed. .

  The first characteristic point of the paper box according to the embodiment of the present invention manufactured as described above is a stopper in which the lock mechanism connected to the upper cover is simply connected to the front plate as in the prior art. The stopper piece (6) shown in FIG. 2 is not simply locked on the piece but is locked in the gap between the front inner wall (12) having the lock mechanism hole (18) and the front outer wall (11). ) Is locked in, so it is completely resealed. Therefore, there is no popping out of the contents, and a click feeling is provided at the time of sealing.

  Moreover, since the 2nd point can respond with one existing sack pasting machine, an installation cost and installation space can be reduced, and a very inexpensive paper box can be manufactured.

Next, as shown in FIG. 3, the paper box of the other embodiment according to the present invention has a glue piece (3) on one side of the surface plate (1) and a first side plate (4) on the other side, The back plate (2) and the second side plate (5) are connected to each other through the crease lines (a, b, c, d), respectively, and the stopper piece (6) (not shown) is attached to the upper end of the front plate (1). The upper edge of the stopper piece is provided at the same line as the glue margin piece (3), the first side plate (4), the back plate (2) and the second side plate (5)). (E), and a lower lid piece (7) and an insertion piece (8) are connected to each other via a crease line (f, g) at the lower end, and the first side plate (4) and A box body (A) formed by connecting ear flaps (9, 9) to the lower end of the second side plate (5) via crease lines (h, i), respectively, and the box body (A) Back plate (2) Upper lid (10) to the edge, the front outer wall (11), front inner wall (12 with said locking mechanism hole (18) and the locking projections provided on the right and left upper edge stopper piece enters (17, 17) ), The upper lid reinforcing inner wall (13) is connected to each other via the crease lines (k, l, m), and the first side plate (4) and the second side plate ( 5) Both side walls (14, 14) having a slightly wider left and right width than each other are connected to each other via crease lines (o, p) and locked to the upper left end edge at the upper ends of the both side walls (14, 14). The open / close head (B) formed by connecting the engaging pieces (15, 15) having the notch portions (16, 16) for each through the crease lines (q, r) via the crease line (j). It is a paper box that is connected in series.

  In order to assemble using the blank of this other embodiment, first, in the sack pasting process, after applying an adhesive to the outer surface of the blank piece (3) of the blank, the paste piece (3) and the crease line ( a) the front surface plate (1) provided continuously through a) is folded along the crease line (b) on the inner surfaces of the first side surface plate (4) and the back surface plate (2) of the blank; Next, the inner surface of the second side plate (5) connected to the back plate (2) via the crease line (d) is formed on the outer surface of the glue piece (3) along the crease line (d). Then, the box body (A) is formed into a sleeve shape by folding and joining.

  Next, the first side plate (4) and the second side plate (5) of the sleeve-shaped box body are raised to form a case, and then the upper end of the back plate (2) of the box body (A). Assemble the open / close head (B) connected through the crease line (j) by hand.

  First, it has a locking cut (16, 16) on the upper left edge, which is connected to the left and right sides of the upper lid (10) of the opening / closing head (B) via a crease line (o, p). The side walls (14, 14) connecting the engaging pieces (15, 15) via the crease lines (q, r) are bent along the crease lines (o, p) at right angles respectively. Next, the engaging pieces (15, 15) are bent inward at right angles along the crease lines (q, r), and the locking cut portions (16, 16) are engaged with each other.

  Next, the front outer wall (11) connected to the upper lid (10) via the crease line (k) is bent at a right angle along the crease line (k), and the engagement pieces (15, 15) Put it on top.

  Next, it has locking projections (17, 17) on the left and right upper edges connected to the front outer wall (11) via a crease line (l), and a locking mechanism hole (18). The front inner wall (12) is bent 180 degrees inward along the crease line (l), overlapped on the front outer wall (11), and simultaneously connected to the front inner wall (12) via the crease line (m). The upper lid reinforcing inner wall (13) is overlapped on the inner surface of the upper lid (10), and the left and right locking projections (17, 17) are placed on the both side walls (14, 14) and the engagement piece (15). , 15) and the opening / closing head (B) is assembled.

  Next, the top of the box body (A) is closed by folding and closing the opening / closing head (B) along the crease line (j), and filling the contents from the bottom of the box body (A), Folds the ear flaps (9, 9) connected to the lower ends of the first side plate (4) and the second side plate (5) of the box body (A) via the fold lines (h, i). A lower lid piece (7) connected to the lower end of the surface plate (1) of the box body (A) via the crease line (f) is folded inwardly along the line (h, i). The insertion piece (8) connected to the lower end of the lower lid piece (7) via a crease line (g) is bent inward at a right angle to the bottom of the box body (A). The paper box containing the contents composed of the box body (A) and the opening / closing head (B) is completed.

  The first characteristic point of the paper box of the other embodiment according to the present invention thus manufactured is that the lock mechanism connected to the upper lid as in the prior art is simply connected to the front plate. The stopper piece (6) shown in FIG. 4 is not simply locked on the stopper piece but is locked in the gap between the front inner wall (12) having the lock mechanism hole (18) and the front outer wall (11). Since it is locked in from 18), it is completely resealed. Therefore, there is no popping out of the contents, and a click feeling is provided at the time of sealing.

  The second point is that the position of the stopper piece (6) is one level lower than the upper end of the surface plate (1) of the box body (A). Expands and the contents can be easily removed.

  Furthermore, since the 3rd point can respond with one existing sack pasting machine, it becomes possible to reduce an installation cost and installation space, and can manufacture a very cheap paper box.

  Next, a wide range of paperboards can be used for the blank base material of the paper box according to the present invention, but use of coated balls, manila balls, ivory, card paper, etc. that have rigidity and strong folding strength. Can do. In addition, when used over a long period of time, a film of polyvinyl chloride, polypropylene, polyethylene, polyethylene terephthalate, polycarbonate, polystyrene, etc., should be laminated to the paperboard in order to make it difficult to break from crease lines and cut lines. Is preferred. Further, moisture resistance can be improved by lamination.

  Furthermore, instead of paperboard, a plastic sheet may be used for the blank substrate. For example, a sheet of polypropylene sheet, amorphous polyethylene terephthalate, or the like made opaque by mixing a filler such as talc can be used as it is as a blank substrate. Further, depending on the contents, a transparent plastic sheet may be used to form a skeleton type that shows the contents.

  In addition, any known printing method such as offset printing, gravure printing, silk screen printing or the like may be used for printing on the blank substrate. Further, post-processing such as embossing, foil pressing, OP double scoring may be performed. Since these printing and post-processing are processing in the form of a paperboard or plastic sheet, a beautiful, powerful and sharp finish is obtained. The paper box according to the present invention preferably overlaps the entire paper box with a dust-proof plastic film after molding and filling in order to improve sealing performance and prevent dust from being mixed.

  Examples of the adhesive include emulsion type synthetic resin adhesives such as vinyl acetate resin, acrylic resin, ethylene-vinyl acetate resin, natural resin adhesives such as glue, wax, EVA, EEA, petroleum resin, low molecular polyethylene, etc. It can be applied by a sack pasting machine using a hot melt adhesive or the like as a main component.

  When a coating agent having heat sealing properties is used instead of the adhesive, a solvent-soluble or water-soluble polyethylene terephthalate resin (PET), ethylene / vinyl acetate copolymer resin, It is preferable that a coating agent such as (EVA), an acrylic resin, or an ethylene / vinyl alcohol copolymer resin (EVOH) is pattern-coated beforehand with a gravure roll or the like.

When the thermoplastic resin is used, a low-density polyethylene resin (LDPE), a linear low-density polyethylene resin (L-LDPE), an ionomer resin (IO), ethylene-vinyl acetate are previously provided on both surfaces of a base material such as paperboard. Copolymer resin (EVA), polypropylene resin (PP), etc. are extruded and laminated on a double-sided resin-processed paperboard that has been laminated with an extrusion (extrusion lamination) device. It is formed by heat sealing.

  Next, as a method for forming the crease line and the cut line, a ruled line blade generally used for paper machine processing and a die embedded with a cutting edge can be used.

  In general, the die used for paper container processing is composed of a male mold and a female mold. The male mold is cut into a groove with a laser cutting device in accordance with the shape of a box on a plywood plywood, and is pushed into the paper. A ruled line blade for making a crease line, a cutting blade for making a cut line on the paper, and a cutting blade for finishing and cutting the paper are implanted.

  One female mold affixes a press board, which is a hard paper, on an iron plate (referred to as a face plate or a cutting plate), and creates a groove at a portion where the ruled line blade hits.

  In paper container processing, such a die is attached to a flat plate punching machine, pre-printed paper is fed between the male and female punches of this flat plate punching machine, pressed with a flat pressure method, punched, and creased by a ruled line blade. A blank having a predetermined size and shape is produced by simultaneously performing the line marking, the score line marking by the cutting edge, and the finish cutting by the cutting edge, and the sheet is folded at the crease line by the sack pasting machine and bonded.

  Hereinafter, the present invention will be described in more detail with reference to specific examples.

<Example 1>
The paper box according to the present invention uses an ivory having a basis weight of 310 g / m 2, and the finished size of the paper box is set to 55 mm width × 86 mm height × depth 24 mm.

As shown in FIG. 1, the glue piece (3) is formed on one side of the front plate (1), and the first side plate (4), the back plate (2), and the second side plate (5) are folded on the other side. Lines (a, b, c, d) are connected to each other, a stopper piece (6) is connected to the upper end of the surface plate (1) via a crease line (e), and a lower lid is connected to the lower end. A piece (7) and an insertion piece (8) are connected to each other via a crease line (f, g), and a flap piece (on the lower end of the first side plate (4) and the second side plate (5)). 9, 9) are connected to each other via crease lines (h, i), and an upper lid (10) is attached to the upper end of the back plate (2) of the box body (A). the outer wall (11), the front inner wall (12) having a locking mechanism hole stopper piece enters (18) and the locking projections provided on the right and left upper edge (17, 17), the top cover Strong inner walls (13) are connected to each other via crease lines (k, l, m), and the first side plate (4) and the second side plate (5) are arranged on both side ends of the upper lid (10). Side walls (14, 14) having slightly wider left and right widths are connected to each other via crease lines (o, p), and locking notches are formed on the upper left edge of the upper ends of the side walls (14, 14). An open / close head (B) formed by connecting engagement pieces (15, 15) having (16, 16) through crease lines (q, r), respectively, through fold lines (j). A blank was prepared.

  Next, after applying an emulsion type adhesive of vinyl acetate resin to the outer surface of the blank piece (3) of this blank, the surface plate (3) and the surface plate (3) provided continuously through the crease line (a) 1) along the crease line (b) and folded on the inner surfaces of the first side plate (4) and the back plate (2) of the blank, and then the crease line (2) on the back plate (2) ( The inner surface of the second side plate (5) provided continuously through d) was folded and joined along the crease line (d) on the outer surface of the adhesive margin piece (3) to form a sleeve.

Next, the first side plate (4) and the second side plate (5) of the sleeve-shaped box body are raised to form a case, and then the upper end of the back plate (2) of the box body (A). The open / close head (B) provided continuously through the crease line (j) was assembled by hand.

  First, it has a locking cut (16, 16) on the upper left edge, which is connected to the left and right sides of the upper lid (10) of the opening / closing head (B) via a crease line (o, p). The side walls (14, 14) connecting the engaging pieces (15, 15) via the crease lines (q, r) are bent along the crease lines (o, p) at right angles respectively. Next, the engagement pieces (15, 15) were bent inward at right angles along the crease lines (q, r), and the locking cut portions (16, 16) were engaged with each other.

  Next, the front outer wall (11) connected to the upper lid (10) via a crease line (k) is bent inward at a right angle along the crease line (k), and the engagement piece (15 15) Overlaid on top.

  Next, it has locking projections (17, 17) on the left and right upper edges connected to the front outer wall (11) via a crease line (l), and a locking mechanism hole (18). The front inner wall (12) having the inner wall (12) is bent 180 degrees inward along the crease line (l), overlapped on the front outer wall (11), and simultaneously connected to the front inner wall (12) via the crease line (m). The upper lid reinforcing inner wall (13) is overlapped on the inner surface of the upper lid (10), and the left and right locking projections (17, 17) are connected to the both side walls (14, 14) and the engagement piece. The opening / closing head (B) was assembled while being locked in the gap with (15, 15).

  Next, the top of the box body (A) is closed by folding and closing the opening / closing head (B) along the crease line (j), and filling the cigarette from the bottom of the box body (A), Folds the ear flaps (9, 9) connected to the lower ends of the first side plate (4) and the second side plate (5) of the box body (A) via the fold lines (h, i). A lower lid piece (7) connected to the lower end of the surface plate (1) of the box body (A) via the crease line (f) is folded inwardly along the line (h, i). The insertion piece (8) connected to the lower end of the lower lid piece (7) via a crease line (g) is bent inward at a right angle to the bottom of the box body (A). As shown in FIG. 2, a paper box (opened state) in which a cigarette (not shown) consisting of a box body (A) and an opening / closing head (B) is stored is completed. It was.

  When the resealability of the paper box of the present invention was evaluated, the stopper piece (6) entered the gap between the front inner wall (12) having the lock mechanism hole (18) and the front outer wall (11) from the lock mechanism hole (18) and locked. And completely resealed. Therefore, there was no popping out of the contents, and a click feeling was brought when sealed.

<Example 2>
The paper box according to the present invention uses an ivory having a basis weight of 310 g / m 2, and the finished size of the paper box is set to 55 mm width × 86 mm height × depth 24 mm.

As shown in FIG. 3, the glue piece (3) is folded on one side of the front plate (1), and the first side plate (4), the back plate (2), and the second side plate (5) are folded on the other side. Lined through wires (a, b, c, d), and a stopper piece (6) on the upper end of the surface plate (1) (note that the upper edge of the stopper piece is the glue margin piece (3 ), The first side plate (4), the back plate (2), and the second side plate (5) are provided at the same line position) via the crease line (e), and the lower lid is provided at the lower end. A piece (7) and an insertion piece (8) are connected to each other via a crease line (f, g), and an ear flap (on the lower end of the first side plate (4) and the second side plate (5)). 9, 9) are connected to each other via crease lines (h, i), and an upper lid (10) is attached to the upper end of the back plate (2) of the box body (A). the outer wall (11), wherein Locking mechanism hole (18) and the projection for engagement provided on the left and right upper edges topper piece enters (17, 17) front inner wall (12) having a upper lid reinforcing the inner wall (13) of the fold line (k, l, m), and the both sides of the upper lid (10) on both side edges (14, 2) having a slightly wider left and right width than the first side plate (4) and the second side plate (5). 14) are connected to each other through crease lines (o, p), and engaging pieces (16, 16) having locking cuts (16, 16) at the upper left end edge at the upper ends of the side walls (14, 14). 15 and 15), and a blank in which an open / close head (B) connected in series through crease lines (q, r) was connected through crease lines (j).

  Next, after applying an emulsion type adhesive of vinyl acetate resin to the outer surface of the blank piece (3) of this blank, the surface plate (3) and the surface plate (3) provided continuously through the crease line (a) 1) along the crease line (b) and folded on the inner surfaces of the first side plate (4) and the back plate (2) of the blank, and then the crease line (2) on the back plate (2) ( The inner surface of the second side plate (5) provided continuously through d) was folded and joined along the crease line (d) on the outer surface of the adhesive margin piece (3) to form a sleeve.

  Next, the first side plate (4) and the second side plate (5) of the sleeve-shaped box body are raised to form a case, and then the upper end of the back plate (2) of the box body (A). The open / close head (B) provided continuously through the crease line (j) was assembled by hand.

  First, it has a locking cut (16, 16) on the upper left edge, which is connected to the left and right sides of the upper lid (10) of the opening / closing head (B) via a crease line (o, p). The side walls (14, 14) connecting the engaging pieces (15, 15) via the crease lines (q, r) are bent along the crease lines (o, p) at right angles respectively. Next, the engagement pieces (15, 15) were bent inward at right angles along the crease lines (q, r), and the locking cut portions (16, 16) were engaged with each other.

  Next, the front outer wall (11) connected to the upper lid (10) via a crease line (k) is bent inward at a right angle along the crease line (k), and the engagement piece (15 15) Overlaid on top.

  Next, it has locking projections (17, 17) on the left and right upper edges connected to the front outer wall (11) via a crease line (l), and a locking mechanism hole (18). The front inner wall (12) is bent 180 degrees inward along the crease line (l), overlapped on the front outer wall (11), and simultaneously connected to the front inner wall (12) via the crease line (m). The upper lid reinforcing inner wall (13) is overlapped on the inner surface of the upper lid (10), and the left and right locking projections (17, 17) are placed on the both side walls (14, 14) and the engagement piece (15). 15) and the opening / closing head (B) was assembled.

  Next, the top of the box body (A) is closed by folding and closing the opening / closing head (B) along the crease line (j), and filling the cigarette from the bottom of the box body (A), Folds the ear flaps (9, 9) connected to the lower ends of the first side plate (4) and the second side plate (5) of the box body (A) via the fold lines (h, i). A lower lid piece (7) connected to the lower end of the surface plate (1) of the box body (A) via the crease line (f) is folded inwardly along the line (h, i). The insertion piece (8) connected to the lower end of the lower lid piece (7) via a crease line (g) is bent inward at a right angle to the bottom of the box body (A). As shown in FIG. 4, a paper box (opened state) in which a cigarette (not shown) consisting of a box body (A) and an opening / closing head (B) is stored is completed. It was.

  When the resealability of the paper box of the present invention was evaluated, the stopper piece (6) entered the gap between the front inner wall (12) having the lock mechanism hole (18) and the front outer wall (11) from the lock mechanism hole (18) and locked. And completely resealed. Therefore, there was no popping out of the contents, and a click feeling was brought when sealed. Furthermore, since the position of the stopper piece (6) is provided one place lower than the upper end of the surface plate (1) of the box body (A), the opening is enlarged and the contents can be easily taken out. .

It is a top view which shows one Example of the blank of the paper box based on this invention. It is a perspective view which shows the paper box which assembled the blank of FIG. 1 in an open state. It is a top view which shows the other Example of the blank of the paper box based on this invention. It is a perspective view which shows the paper box which assembled the blank of FIG. 3 in an open state.

Explanation of symbols

A ... Box body B ... Opening / closing head 1 ... Front plate 2 ... Back plate 3 ... Adhesive strip 4 ... First side plate 5 ... Second side plate 6. ··· Stopper piece 7 ··· Lower lid piece 8 ··· Insertion piece 9 ··· Ear flap 10 · · · Upper lid 11 · · · Front outer wall 12 · · · Front inner wall 13 · · · Upper lid reinforcing inner wall 14 ··· -Side wall 15 ... engaging piece 16 ... locking notch 17 ... locking projection 18 ... lock mechanism hole a, b, c, d, e, f, g, h, i, j ... crease line k, l, m, o, p, q, r ... crease line

Claims (1)

The glue piece is connected to one side of the front plate, the first side plate, the back plate and the second side plate are connected to each other through the crease line, and the stopper piece is creased on the upper end of the front plate. The lower lid piece and the insertion piece are connected to the lower end via a crease line, respectively, and the ear flaps are connected to the lower ends of the first side plate and the second side plate via a crease line, respectively. A box body formed; and
The upper lid, the front outer wall, the locking mechanism hole into which the stopper piece enters and the locking projections provided at the left and right upper edges, and the upper lid reinforcing inner wall are creased at the upper end of the back plate of the box body. And both side walls having a slightly wider left and right width than the first side plate and the second side plate are connected to both side ends of the upper lid via crease lines, respectively. A paper box comprising: an open / close head formed by connecting engagement pieces each having an engaging cut portion at an upper left end edge thereof through a crease line, and through a crease line.

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