JP2013133145A - Packaging box - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a packaging box capable of avoiding generation of hit wrinkles and hit damage on an attachment edge part of a shrink film, etc. when an opening of an end of a tubular body housing an object to which the shrink film, etc. is attached is to be closed.SOLUTION: The opening 14 at a lower end part of the tubular body 11 formed with a front/rear pair of front plates 11a, 11b and a left/right pair of lateral plates 11c, 11d is closed by inserting a bottom-surface part inserting flap piece 13b of a bottom-surface part cover flap piece 12b continued to a lower edge part of one front plate 11a along a lower end inner surface of the other front plate 11b, after the object 20 is housed. When the bottom-surface part inserting flap piece 13b disposed in a lower end inner side of the other front plate 11b is to be inserted along the lower end inner surface of the other front plate 11b, a spacer piece 15 is provided so as to form an insertion interval between an outer peripheral surface of a part to which the shrink film 21 of the object 20 is attached and the lower end inner surface of the other front plate 11b.

Description

  The present invention relates to a packaging box, and more particularly to a packaging box that accommodates an article having a shrink film attached thereto.

  For example, as a packaging box to store cosmetics, medicines, confectionery, stationery, and other items, a blank, which is a sheet-like sheet material made of paper or plastic cut into a predetermined shape, is folded. What is assembled into a three-dimensional shape by bending along a line is often used. A packaging box using a blank generally contains an article inside a cylindrical main body having a rectangular cross section including a pair of front and rear front plates and a pair of left and right side plates, and a lid flap in which an insertion flap piece is continuously provided at the tip. By covering the openings at both ends of the cylindrical main body with the pieces, the openings are closed to form a hexahedron.

  In addition, if there is a gap between the outer peripheral surface of the stored article and the inner peripheral surface of the box, the packaging box may be damaged due to rattling of the article inside the box during transportation. Therefore, it is required to form a packaging box with a size that allows an article to fit inside the box so that a gap is not generated as much as possible.

  On the other hand, when the packaging box is formed with a size that fits inside the box, for example, in the process of packing the article into the packaging box by mechanical means, after the article is accommodated inside the cylindrical main body of rectangular cross section, For example, the end of the cylindrical main body is inserted by inserting the insertion flap piece of the lid flap piece provided continuously with the edge of one of the pair of front plates along the inner surface of the end portion of the other front plate. When closing the opening of the part, it is difficult to form a gap for insertion between the inner surface of the end of the other front plate and the outer peripheral surface of the article. For this reason, the tip of the insertion flap piece is likely to hit the portion of the stored article that is in contact with the inner surface of the end of the other front plate, the tip of the insertion flap piece is bent, or the end of the packaging box The opening may not be properly closed.

  For this reason, the opening of the end portion of the packaging box formed with a size that fits the article is devised so that it can be smoothly closed by the lid flap piece that is inserted into the tip portion and the flap piece is continuously provided. Packaging boxes have been developed (see, for example, Patent Document 1). In the packaging box of Patent Document 1, an arc-shaped concave cut is provided at the leading edge that is the free end of the insertion flap piece of the lid flap piece. Thereby, for example, when a cylindrical article is accommodated in a cylindrical main body having a rectangular cross section, in the gap portion on both sides sandwiching the central portion of the inner side surface of the front plate in contact with the cylindrical article, By inserting the free ends of the protruding parts on both sides across the concave notch at the tip edge of the insertion flap piece along the inner side of the end of the cylindrical body, the article is inserted into the inner side of the end of the front plate. It is made to be able to insert a flap piece smoothly between these while making it float.

JP-A-2005-47620

  However, in the packaging box of Patent Document 1, it is possible to avoid that the tip of the insertion flap piece is bent or that the opening at the end of the packaging box cannot be properly closed. In the case where the printed matter or sheet matter such as a fill is attached, and the shrink film or the like is attached to the article up to a portion arranged close to the opening of the end of the cylindrical body, The inserted flap piece is hooked on the mounting edge of a shrink film or the like, and the mounting edge 21a is slightly turned up or damaged as shown in FIG. It is difficult to reliably avoid this.

  The probability of occurrence of such wrinkles and hit scratches 21b is as low as about 0.1 to 1% of the product containing the goods in the packaging box, but it may be a factor that damages the customer's trust. Therefore, it is necessary to inspect all the products, and it takes a lot of labor. Especially, the inside of the packaging box, which is not directly visible inside, such as paper or plastic, can be colored or printed. If it is difficult to see, it will be difficult to inspect all products.

  The present invention provides a plug inserted along the inner surface of the end of the other front plate when closing the opening of the end of the cylindrical main body containing a printed product such as a shrink film or an article mounted with a sheet. It is an object of the present invention to provide a packaging box in which the flap piece does not get caught on the mounting edge of the printed material or sheet material, and the printed material or sheet material can be prevented from wrinkling and scratching.

  The present invention has a hollow hexahedron shape including a pair of front and rear front plates and a pair of left and right side plates, and accommodates an article on which a printed matter or a sheet matter such as a hot stamp, thermal transfer, a sticker label, a shrink film is mounted. An opening of at least one end portion of the cylindrical main body formed by the pair of front and rear front plates and the pair of left and right side plates after storing the article. The other front plate is closed by inserting the insertion flap piece of the lid flap piece provided continuously with the end edge of one of the front plates along the inner surface of the end of the other front plate. When the insertion flap piece is inserted along the inner surface of the end portion of the other front plate, the shrink flap of the article is arranged inside the end portion of the insertion plate or arranged continuously to the tip of the insertion flap piece. A packaging box provided with a spacer piece so that an insertion interval is formed between an outer peripheral surface of a portion on which the printed material or sheet material such as a rumm is mounted and an inner surface of an end portion of the other front plate; By providing this, the above-mentioned object is achieved.

  According to the packaging box of the present invention, when closing the opening of the end of the cylindrical main body containing the article with the printed or sheeted product such as the shrink film, it is along the inner surface of the end of the other front plate. The insertion flap piece inserted in this way is not caught on the mounting edge of the printed material or sheet material, so that it is possible to avoid wrinkling or scratching the printed material or sheet material.

It is a perspective view explaining the product which accommodated the goods by which the shrink film was mounted | worn in the packaging box which concerns on preferable 1st Embodiment of this invention. It is a perspective view of the state which inserts an insertion flap piece explaining the principal part of the packaging box which concerns on preferable 1st Embodiment of this invention. BRIEF DESCRIPTION OF THE DRAWINGS The principal part of the packaging box based on preferable 1st Embodiment of this invention is demonstrated, (a) is a bottom view of the state before accommodating articles | goods, (b) is a bottom view of the state after accommodating articles | goods. . It is an expanded view of the blank for forming the sealed box which concerns on preferable 1st Embodiment of this invention. The principal part of the packaging box based on preferable 2nd Embodiment of this invention is demonstrated, (a) is a bottom view of the state after accommodating articles | goods, (b) is a perspective view of the state which inserts an insertion flap piece. is there. It is an expanded view of the blank for forming the packaging box which concerns on preferable 2nd Embodiment of this invention. It is a front view which illustrates other forms of a spacer piece. (A), (b) is a bottom view which illustrates the other form of a spacer piece. It is a front view explaining the insertion flap piece of a reference example. It is a front view explaining the wrinkle and hit | scratch which generate | occur | produced in the mounting edge part of the shrink film. It is a perspective view which illustrates the modification aspect of FIG.

  As shown in FIG. 1, a packaging box 10 according to a first preferred embodiment of the present invention is an article 20 preferably having a shrink film as a printed material or sheet material, for example, a small-sized product filled with liquid cosmetics. A bottle-shaped container is accommodated and commercialized. In the first embodiment, the article 20 is preferably housed and packed in the packaging box 10 by mechanical means. Moreover, in this 1st Embodiment, the opening part of the upper end part of the cylindrical main body 11 of the packaging box 10 which consists of a pair of front and back front plates 11a and 11b and a pair of left and right side plates 11c and 11d is used as the top cover flap piece 12a. The article 20 is inserted and accommodated in the inside of the cylindrical main body 11 from the head side to which the cap 20a is attached via the opening 14 at the lower end, and further, the lower end of the cylindrical main body 11 is closed. The product is manufactured by closing the opening 14 with a bottom cover flap piece 12b or the like.

  The packaging box 10 according to the first embodiment is accommodated in the cylindrical main body 11 when the opening 14 at the lower end of the cylindrical main body 11 is closed by the bottom cover flap piece 12b (see FIG. 2). When inserting the bottom surface insertion flap 13b of the bottom surface lid flap piece 12b into the shrink film 21 that covers the outer peripheral surface of the body portion 20b of the article 20 and is attached to the position close to the bottom surface portion 20c, the bottom surface insertion flap is inserted. A function for effectively avoiding the occurrence of wrinkles and hitting scratches 21b (see FIG. 10) in which the mounting edge portion 21a of the shrink film 21 is slightly turned up by being caught by 13b. Is provided.

  The packaging box 10 according to the first embodiment has a hollow hexahedron shape including a pair of front and rear front plates 11a and 11b and a pair of left and right side plates 11c and 11d, and a shrink film 21 is mounted therein. As shown in FIGS. 1 to 3, a packaging box that accommodates an article 20, and as shown in FIGS. 1 to 3, at least one of the cylindrical main body 11 including a pair of front and rear front plates 11 a and 11 b and a pair of left and right side plates 11 c and 11 d. The opening 14 at the lower end, which is an opening at the end, is a bottom cover that is connected to the lower edge of the front plate 11a of either one of the pair of front plates 11a and 11b after the article 20 is accommodated. The bottom piece insertion flap piece 13b of the flap piece 12b is blocked by being inserted along the inner surface of the lower end portion of the other front plate 11b. The outer periphery of the portion of the article 20 on which the shrink film 21 is mounted when the bottom face insertion flap piece 13b is inserted along the inner surface of the lower end of the other front plate 11b. A spacer piece 15 (see FIG. 3A) is provided so that an insertion interval s (see FIGS. 2 and 3B) is formed between the surface and the inner surface of the lower end portion of the other front plate 11b. It has been.

  Moreover, in this 1st Embodiment, the front-end | tip edge part 16 of the bottom face part insertion flap piece 13b is formed in the concave shape provided with the narrow part 16b constricted in the substantially V shape in the part between the both ends 16a. The spacer piece 15 disposed inside the lower end of the other front plate 11b is provided with a width narrower than the front end width b (see FIG. 4) of the constricted portion 16b.

  Furthermore, in this 1st Embodiment, the spacer piece 15 arrange | positioned inside the lower end part of the other front board 11b has the folding piece 17 connected with the lower end edge part of the other front board 11b via the folding line 17a. , And is provided by folding back at a folding line 17a.

  The packaging box 10 of the first embodiment is formed by using, for example, a single paper blank 18 as shown in FIG. The blank 18 can be easily obtained by punching and cutting, for example, a sheet-like paper sheet material so as to have a predetermined shape obtained by developing the hexahedron-shaped packaging box 10. The blank 18 has a shape-retaining rigidity and elasticity that can easily hold a smoothly curved state without bending even when the side edge is gripped and horizontally extended in a cantilevered manner. Deformability that can be easily bent by force.

  Further, the blank 18 is provided with, for example, a longitudinal fold line 19a or a lateral fold line 19b made of a half-cut line or a ruled line, or a cut 22 made of a full cut line at an appropriate position. The box 10 can be easily assembled so as to have a hexahedral shape.

  In the first embodiment, in the blank 18, one vertically long rectangular front plate 11 a having a vertical width of about 100 mm and a horizontal width of about 35 mm is disposed on the left side of the development view of FIG. 4. Yes. On the right side of one front plate 11a, one side plate 11c of a vertically long rectangle, for example, having a vertical width of about 100 mm and a horizontal width of about 28 mm, is connected via a vertical folding line 19a. Yes. On the right side of one side plate 11c, the other front plate 11b having a vertically long rectangular shape is connected via a vertical folding line 19a. On the further right side of the other front plate 11b, the other side plate 11d of a vertically long rectangle is connected via a vertical folding line 19a. On the left side of one of the front plates 11a, a vertically long strip-shaped joining plate 23 is continuously provided via a vertical folding line 19a.

  A bottom cover flap piece 12b is continuously provided below one front plate 11a via a lateral fold line 19b. A bottom surface insertion flap 13b is further provided below the bottom surface cover flap piece 12b via a lateral fold line 19b. The front end edge 16 of the bottom portion insertion flap piece 13b is formed in a concave shape including a constricted portion 16b confined in a substantially V shape at a portion between both end portions 16a. Moreover, in this 1st Embodiment, between the both ends of the horizontal fold line 19b between the bottom face part cover flap piece 12b and the bottom face part insertion flap 13b, between the base end parts of the flap pieces 24b in the bottom face part. A lock notch 22 constituting a known lock mechanism is provided.

  Above the other front plate 11b, a top surface cover flap piece 12a is continuously provided via a lateral fold line 19b. A top surface insertion flap 13a is further provided above the top surface lid flap piece 12a via a lateral folding line 19b. Moreover, in this 1st Embodiment, between the both ends of the horizontal fold line 19b between the top | upper surface part lid | cover flap piece 12a and the top | upper surface part insertion flap 13a, it is between the base end part of the flap piece 24a in the top | upper surface part. A locking notch 22 constituting a known locking mechanism is provided.

  A folded piece 17 having a rectangular shape is continuously provided below the other front plate 11b via a folded line 17a.

  Above the pair of side plates 11c and 11d, the top surface inner flap pieces 24a are connected to each other via a lateral folding line 19b. At the base end portion of the top surface inner flap piece 24a, there is provided a locking projection piece 26 that constitutes a known locking mechanism with the above-described locking cut 22. Under the pair of side plates 11c and 11d, an in-bottom flap piece 24b is continuously provided via a lateral fold line 19b. At the base end portion of the bottom surface inner flap piece 24b, a locking projection piece 26 is provided which constitutes a known locking mechanism with the above-described locking cut 22.

  In the first embodiment, the packaging box 10 is easily assembled into a three-dimensional shape containing the article 20 by using the blank 18 described above, preferably by a simple process using a known sealing device (box making machine). be able to. That is, for example, after an adhesive is applied to the joining plate 23 provided on the left side of one front plate 11a constituting the blank 18, the joining plate 23 is connected to the side edge of the other side plate 11d via this adhesive. A rectangular hollow cross section consisting of a pair of front and rear front plates 11a and 11b and a pair of left and right side plates 11c and 11d bent along each longitudinal fold line 19a. A cylindrical body 11 having a shape is formed.

  When the cylindrical main body 11 having a rectangular hollow cross-sectional shape is formed, the opening at the upper end of the cylindrical main body 11 is closed using the pair of top surface portion flap pieces 24a and the top surface portion lid flap pieces 12a. That is, the top-surface inner flap pieces 24a on both sides that are provided above the pair of side plates 11c and 11d are folded inward via the lateral folding lines 19b and folded on the upper-surface flap pieces 24a. The top surface lid flap pieces 12a are folded inward via the lateral fold lines 19b so as to overlap. Moreover, while inserting the top | upper surface part insertion flap piece 13a continuously provided in the front-end | tip of the top | upper surface part lid | cover flap piece 12a via the horizontal fold line 19b along the inner surface of the upper end part of one front board 11a, the notch | locking 22 for a lock | rock is inserted. Lock to the locking protrusion 26 of the top surface flap piece 24a. Thus, the opening at the upper end of the cylindrical main body 11 can be covered and closed by the pair of top surface portion flap pieces 24a and the top surface portion lid flap pieces 12a.

  When the opening at the upper end of the cylindrical main body 11 is closed, the article 20 is accommodated in the cylindrical main body 11. That is, the article 20 is inserted and disposed in the cylindrical main body 11 through the opening 14 at the lower end from the head side to which the cap 20a is attached.

  Here, in the first embodiment, the article 20 is, for example, a small bottle-shaped container filled with a liquid cosmetic, and as shown in FIG. 1 and FIG. In addition to having a substantially elliptical cross-sectional shape having a major axis of about 35 mm and a minor axis of about 28 mm, the height from the bottom surface portion 20c to the upper end surface of the head by the cap 20a is about 100 mm. Thus, the article 20 has a size and shape that fits perfectly inside the packaging box 10. Moreover, in this 1st Embodiment, the shrink film 21 for covering the substantially whole region of the outer peripheral surface of the trunk | drum 20b of the article | item 20, and giving a decoration, a description, etc. adjoins the bottom face part 20c by a well-known method. It is mounted as a unit up to the position.

  Note that, as described above, the reason why the article 20 is inserted from the head side into the cylindrical main body 11 with the opening at the upper end closed through the opening 14 at the lower end is contrary to this. When the article 20 is inserted from the bottom side through the opening at the upper end portion and the article 20 is inserted (dropped) into the lower end side through the cylindrical main body 11, the lower end portion is closed. A portion of the shrink film 21 adjacent to the bottom surface 20c of the article 20 hits the insertion flap pieces 13b and 13b ′ (see FIGS. 1 and 11) that close the opening 14 of the article, so This is because the probability of occurrence of 21b (see FIG. 10) increases.

  When the article 20 is accommodated inside the cylindrical main body 11, as shown in FIG. 2, the opening 14 at the lower end of the cylindrical main body 11 is formed using a pair of bottom surface portion flap pieces 24b and a bottom surface portion lid flap piece 12b. Block. That is, the bottom flap portions 24b on both sides that are provided below the pair of side plates 11c and 11d are folded inward via the lateral folding line 19b and folded on the bottom flap portions 24b. Thus, the bottom cover flap piece 12b is bent inward via the lateral fold line 19b. Further, the bottom portion insertion flap piece 13b connected to the front end of the bottom portion lid flap piece 12b via the lateral fold line 19b is inserted along the inner surface of the lower end portion of the other front plate 11b, and the locking cut 22 is provided. Lock to the locking protrusion 26 of the bottom flap portion 24b. Thereby, the opening of the lower end part of the cylindrical main body 11 can be covered and closed by the pair of bottom surface portion flap pieces 24b and the bottom surface portion lid flap pieces 12b.

  The packaging box 10 that accommodates the article 20 and is formed into a hexahedron shape as described above is preferably commercialized with a transparent film for preventing tampering, for example, covering the whole.

  And according to the packaging box 10 of this 1st Embodiment provided with the above-mentioned structure, when closing the opening part 14 of the lower end part of the cylindrical main body 11 which accommodated the goods 20 with which the shrink film 21 was mounted | worn, the other The bottom face insertion flap piece 13b of the bottom face lid flap piece 12b inserted along the inner side surface of the lower end portion of the front plate 11b of the front plate 11b hits the shrink film 21 so that it does not get caught on the mounting edge 21a of the shrink film 21. It is possible to effectively avoid the occurrence of the slight hitting scratch 21b (see FIG. 10).

  That is, according to the first embodiment, as shown in FIGS. 3A and 3B, the spacer piece 15 is provided on the inner side of the lower end of the other front plate 11b. When inserting the insertion flap piece 13b along the inner surface of the lower end of the other front plate 11b, the bottom surface of the article 20 on which the shrink film 21 is attached and the inner surface of the lower end of the other front plate 11b. The insertion interval of a size large enough to insert the bottom portion insertion flap piece 13b is formed. By inserting the bottom portion insertion flap piece 13b through the insertion interval (see FIG. 2), the bottom portion insertion flap piece 13b is prevented from interfering with the shrink film 21 attached to the article 20, so that the shrink film 21 is attached. It is possible to effectively avoid the occurrence of wrinkles and hits on the edge 21a.

  Further, according to the first embodiment, the front edge 16 of the bottom portion insertion flap piece 13b is formed in a concave shape including the constricted portion 16b at the portion between the both end portions 16a, and the other front plate 11b. The spacer piece 15 disposed inside the lower end of the narrow portion is provided with a width narrower than the front end width b (see FIG. 4) of the constricted portion 16b. Thus, the bottom portion insertion flap piece is inserted into the gap portion 27 (see FIG. 3B) on both sides sandwiching the central portion of the inner surface of the lower end portion of the other front plate 11b with which the article 20 having a substantially elliptical cross section is in contact. By inserting the free ends of both end portions 16a, which are protruding portions, on both sides of the constricted portion 16b of the front end edge portion 16b of 13b, along the inner side surface of the end portion of the other front plate 11b in advance. While the article 20 is gradually floated from the inner surface of the end portion of the other front plate 11b, the bottom portion insertion flap piece 13b can be smoothly inserted therebetween.

  Furthermore, according to the first embodiment, the spacer piece 15 disposed inside the lower end of the other front plate 11b is a folded piece that is connected to the lower end edge of the other front plate 11b via the return line 17a. 17 is provided by folding back at a folding line 17a. Due to the shape retention of the blank 18, which is a thin plate-like sheet material, the spacer piece 15 formed by the folded piece 17 has an urging force to move away from the inner surface of the lower end portion of the other front plate 11 b around the folded line 17 a. become. The bottom surface portion is inserted between the outer peripheral surface and the inner surface of the lower end portion of the other front plate 11b by floating the outer peripheral surface of the bottom portion of the article 20 on which the shrink film 21 is mounted by the urging force of the folded piece 17. It is possible to form an insertion interval that is large enough to insert the flap piece 13b in a more stable state.

  In addition, when inserting the part insertion flap piece of the lid flap piece along the inner surface of the end portion of the other front plate, the insertion flap piece is caught, so that wrinkles and contact scratches occur at the edge of the shrink film. As a reference example of means for making it possible to avoid this, the one shown in FIG. 9 can be exemplified. In the reference example shown in FIG. 9, the intermediate fold between the both end portions 16 a ′ of the insertion flap piece 13 ′ matches the lateral fold line 19 b ′ between the insertion flap piece 13 ′ and the lid flap piece 12 b ′. A notch 28 having a considerable width is formed. According to the reference example of FIG. 9, even when the spacer piece is not provided on the inner surface of the end portion of the other front plate, the insertion flap piece 13 ′ is attached to the article when inserted along the inner surface of the end portion of the other front plate. It is possible to avoid interference with the formed shrink film. On the other hand, since the shape retention rigidity of the insertion flap piece 13 ′ is lowered, the opening at the end of the cylindrical main body 11 is covered and closed with the lid flap piece 12b ′ by inserting the insertion flap 13 ′. In addition, the insertion flap 13 ′ and the lid flap piece 12b ′ are easily deformed by the weight of the accommodated article, for example.

  5 (a) and 5 (b) show a main part of a packaging box 50 according to a second preferred embodiment of the present invention. The packaging box 50 of the second embodiment has substantially the same configuration as the packaging box 10 of the first embodiment except for the following parts. That is, in the packaging box 10 of the said 1st Embodiment, the front-end | tip edge part 16 of the bottom face part insertion flap piece 13b is made into the concave shape provided with the constriction part 16b constricted by the substantially V shape in the part between both ends 16a. The spacer piece 15 is formed on the inner side of the lower end portion of the other front plate 11b by folding back the folded piece 17 connected to the lower end edge portion of the other front plate 11b. In 2nd Embodiment, it replaces with these and the spacer piece 15 is provided by being arranged continuously by the front-end | tip of the bottom face part insertion flap piece 13b. Since the packaging box 50 of the second embodiment has the same configuration as the packaging box 10 of the first embodiment, the same reference numerals as those of the packaging box 10 of the first embodiment are used. A detailed description thereof will be omitted.

  And the packaging box 50 which concerns on this 2nd Embodiment is formed using the sheet | seat blank 51 of paper shown in FIG. 6, and was continuously arranged by the front-end | tip of the bottom face part insertion flap piece 13b. The spacer piece 15 is provided by folding back a flap folding piece 52 that is connected to the front end edge of the bottom portion insertion flap piece 13b via a flap folding line 52a by a flap folding line 52a. Further, the flap folding line 52a for folding the flap folding piece 52 is provided so as to extend obliquely with respect to the lateral folding line 19b between the bottom face lid flap piece 12b and the bottom face insertion flap piece 13b. .

  According to the packaging box 50 according to the second embodiment, as shown in FIGS. 5 (a) and 5 (b), the flap folded piece 52 is folded inward along the flap folded line 52a, and the bottom portion insertion flap piece is used. If 13b is inserted along the inner surface of the lower end portion of the other front plate 11b, the flap folded piece 52 that is about to be separated from the inner surface of the lower end portion of the other front plate 11b due to the folded flap 52 is folded. By the force, the article 20 can be lifted from the inner surface of the end of the other front plate 11b. Thus, an insertion of a size sufficient to insert the bottom surface insertion flap piece 13b between the outer peripheral surface of the bottom portion of the article 20 on which the shrink film 21 is mounted and the inner surface of the lower end portion of the other front plate 11b. Since the space is formed and the bottom surface insertion flap piece 13b can be smoothly inserted through the insertion space, the operation effect substantially similar to that of the packaging box 10 according to the first embodiment is obtained. Will play.

  Moreover, in this 2nd Embodiment, the front-end edge part of the said bottom face part insertion flap piece 13b at the time of inserting the bottom face part insertion flap piece 13b by the flap folding piece 52 being folded by the flap folding line 52a is a flap folding line. Since it is chamfered so as to be rounded by the outer peripheral surface of the portion folded back at 52a, it is more effective to eliminate the catch between the front edge of the bottom portion insertion flap piece 13b and the mounting edge of the shrink film. It is possible to avoid the occurrence of hitting wrinkles and hitting scratches.

  Furthermore, in the second embodiment, the flap folding line 52a for folding the flap folding piece 52 extends obliquely with respect to the lateral folding line 19b between the bottom cover lid flap piece 12b and the bottom insertion flap piece 13b. Therefore, the tip edge portion of the bottom surface insertion flap piece 13b when the bottom surface insertion flap piece 13b is inserted also extends obliquely. Accordingly, the bottom surface portion is inserted into one of the gap portions 27 (see FIG. 5A) on both sides sandwiching the central portion of the inner surface of the lower end portion of the other front plate 11b with which the article 20 having a substantially elliptical cross section is in contact. By inserting the most protruding one end 29 of the front end edge of the flap piece 13b along the inner surface of the end of the other front plate 11b, the article 20 is inserted into the end of the other front plate 11b. While gradually floating from the side surface, the bottom surface insertion flap piece 13b can be inserted more smoothly between them.

  The flap folding line 52a for folding the flap folding piece 52 does not necessarily extend obliquely with respect to the lateral folding line 19b between the bottom face lid flap piece 12b and the bottom face insertion flap piece 13b. As shown in FIG. 7, it extends in parallel or substantially parallel to the lateral fold line 19b between the bottom cover flap piece 12b and the bottom insert flap 13b, and the bottom insert flap. The tip edge portion of the piece 13b may also extend in parallel or substantially in parallel to the lateral fold line 19b between the bottom face cover flap piece 12b and the bottom face insertion flap piece 13b.

  The present invention is not limited to the above-described embodiments, and various modifications can be made. For example, the blank for forming the packaging box is not necessarily a paper blank, and may be a plastic blank or the like. Moreover, the spacer piece does not necessarily need to be arrange | positioned inside the lower end part of the other front board, and may be arrange | positioned inside an upper end part. The spacer piece may be continuously arranged at the tip of the insertion flap piece that is provided continuously with the upper end portion of the one front plate.

  Further, as shown in FIG. 8 (a), when the spacer piece 15 is formed by the folded piece 17 connected to the end edge portion of the other front plate 11b via the folded line 19b, the center of the folded piece 17 is centered. If the ruled line 30 is put so as to form a valley, a sufficient insertion interval between the outer peripheral surface of the bottom portion on which the shrink film of the article is mounted and the inner surface of the end portion of the other front plate 11b is further increased. It can be formed in a stable state. As shown in FIG. 8 (b), the spacer piece 15 is formed by connecting the spacer member 31 to the end of the other front plate 11b without connecting the folded piece to the end edge of the other front plate 11b via a turn line. It can also be provided by sticking to the inner surface of the part. Also by the spacer piece 15 by such a spacer member 31, for example, each of the above-mentioned implementations can be achieved by combining the tip edge portion 16 with the insertion flap piece 13 formed in a concave shape having a constricted portion 16b at a portion between both end portions 16a. It is possible to achieve substantially the same effect as the form.

  Moreover, as shown in FIG. 11 which illustrates the deformation | transformation aspect of FIG. 1, the insertion flap piece 13b 'of the lid | cover flap piece 12b provided in a row at the edge part of one front plate 11a has a concave shape at the front edge part. Even if it has a general shape in which no part is formed, since the spacer piece is arranged inside the end portion of the other front plate 11a, substantially the same functions and effects as those in the above embodiments are achieved. The

  Furthermore, the printed material or the sheet material covered with the article 20 is not necessarily a shrink film, and may be other printing or a sheet material as shown in FIG. As for printing, even when it is a hot stamp or thermal transfer that is relatively easily damaged, it is possible to effectively prevent the printed portion from being damaged. Even when the sheet is a sticking label or the like, it is possible to effectively avoid the occurrence of a scratch or the like due to the attachment edge portion turning up.

  Furthermore, the present invention effectively avoids the occurrence of wrinkles and scratches when packing an article into a packaging box by mechanical means as well as when packing an article into a packaging box by manual work. It becomes possible to do.

10, 50 Packaging box 11 Tubular main body 11a One front plate 11b One front plate 11c, 11d Side plate 12a Bottom face lid flap piece 12b Bottom face lid flap piece 13a Top face insertion flap piece 13b Bottom face insertion flap piece 14 Tube Opening 15 at the lower end of the main body 15 Spacer piece 16 Tip edge 16a of the bottom portion insertion flap piece Both ends 16b Constricted part 17 Folding piece 17a Folding lines 18, 51 Blank 19a Vertical folding line 19b Lateral folding line 20 Article 21 Shrink film (printed or sheet)
21a Mounting edge 21b Wrinkles and scratches 24a Top surface flap piece 24b Bottom surface flap piece 52 Flap folded piece 52a Flap folded line b Front edge width of constricted portion

Claims (6)

A packaging box having a hollow hexahedron shape including a pair of front and rear front plates and a pair of left and right side plates, and containing an article coated with a printed matter or a sheet,
The opening of at least one end of the cylindrical main body formed by the pair of front and rear front plates and the pair of left and right side plates is an end of one of the pair of front plates after the article is accommodated. The insertion flap piece of the lid flap piece provided continuously to the edge portion is designed to be closed by inserting it along the inner surface of the end portion of the other front plate,
When the insertion flap piece is inserted along the inner surface of the end portion of the other front plate, arranged inside the end portion of the other front plate or continuously arranged at the tip of the insertion flap piece, A packaging box in which a spacer piece is provided so that an insertion interval is formed between an outer peripheral surface of a portion of the article covered with the printed material or sheet material and an inner surface of an end portion of the other front plate. The packaging box according to claim 1, wherein the printed material or the sheet material is a hot stamp, thermal transfer, an adhesive label, or a shrink film.   The leading edge portion of the insertion flap piece is formed in a concave shape having a constricted portion at a portion between both end portions, and the spacer piece disposed inside the end portion of the other front plate is formed of the constricted portion. The packaging box of Claim 1 or 2 provided with the width | variety narrower than the frontage width | variety of a front-end | tip. The spacer piece disposed inside the end portion of the other front plate is provided by folding back a folding piece continuously connected to an end edge portion of the other front plate via a folding line. The packaging box according to any one of claims 1 to 3. The spacer piece arranged continuously at the tip of the insertion flap piece is provided by folding back the flap folding piece continuously arranged at the tip edge of the insertion flap piece via the flap folding line. The packaging box according to claim 1 or 2. The packaging box according to claim 5, wherein the flap folding line is provided obliquely with respect to a folding line between the lid flap piece and the insertion flap piece.

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