JP2008074414A - Sliding type carton - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sliding type carton having cushioning properties. <P>SOLUTION: This sliding type carton consists of a vessel-form internal vessel, and a cylindrical sleeve. In this case, the internal vessel has external surfaces of front, rear, left and right bottoms, and internal surfaces which are connected with the external surfaces and are folded inward. The cylindrical sleeve has upper, lower, left and right external surfaces which cover the internal vessel. Then, a gap is formed between the internal surfaces and the external surfaces of the internal vessel, and thus, the cushioning properties are imparted to the sliding type carton. In addition, a gap is formed between the external surfaces and the internal surfaces of the sleeve, and the cushioning properties are imparted to the sliding type carton. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a sliding carton comprising a boat-shaped middle boat for containing contents, and a cylindrical sleeve that covers the middle boat and slides freely back and forth and opens and closes. The present invention relates to a sliding-type carton having cushioning properties in which a configuration having a cushioning effect is formed on six inner surfaces on the front, back, left, right, top, and bottom that contact an object.

  Conventionally, for example, as shown in FIG. 16, the slide is configured by a cylindrical sleeve D that accommodates granular contents in a boat-shaped middle boat B and is slidable before and after covering the middle boat B. The carton A of the formula (Carton A) is known. Such a carton A is usually provided with a cushion insole C formed of single-sided cardboard having a plurality of core spaces on the inner surface of the middle boat B, and vibration during transportation of contents. (For example, patent document 1).

JP-A-5-270541

  However, the carton A in which the insole C member having an additional cushioning property as described above is provided on the inner surface of the middle boat B has the following drawbacks.

1. In order to form the intermediate boat B and the insole C separately, these separate production lines are required.
2. A manufacturing process for attaching the insole C to the inside of the middle boat B is required.
3. Since the insole C requires a complicated shape for providing cushioning properties, the manufacturing cost is expensive.
4. When the contents contain an oil and fat component, it is necessary to apply oil-proofing to the insole C, and there is a cost for manufacturing an oil-resistant insole.

  Thus, the sliding carton A having cushioning properties has a drawback that it is expensive compared to a normal carton.

  In addition, the insole C provided on the inner side of the middle boat B covers all six sides of the middle boat in the front, rear, left, right, upper and lower sides with a cushioning sheet, and even when the middle boat is pulled out from the sleeve, Since the opening portion of the boat is covered with the sheet, when taking out the contents, the consumer has to turn up the upper insole C covering the opening portion of the middle boat.

  Therefore, in order to solve these problems, the invention according to claim 1 of the present invention is a boat having an outer surface of the front, rear, left, and right bottoms and an inner surface that is continuous from the outer surface and folded inward. In a sliding carton comprising a shaped middle boat and a cylindrical sleeve having upper, lower, left and right outer surfaces covering the middle boat, a gap is formed between the inner surface and the outer surface of the middle boat. This is a sliding carton having cushioning characteristics.

According to a second aspect of the present invention, there is provided a boat-shaped middle boat having an outer surface of the front, rear, left, and right bottoms, and an inner surface continuous from the outer surface and folded inward, and covers the middle boat In a sliding carton comprising a cylindrical sleeve having upper, lower, left and right outer surfaces, a cushioning property, wherein a gap is formed between the outer surface and the inner surface of the sleeve Is a sliding carton.

  According to a third aspect of the present invention, the gap is formed by inclining the inner surface by making the heights of the outer surface and the inner surface of the middle boat different from each other. This is a sliding carton having cushioning characteristics.

  According to a fourth aspect of the present invention, the gap is formed by bending the inner surface by making the length or width of the outer surface and the inner surface of the sleeve different from each other. This is a sliding carton having cushioning characteristics.

  Further, the invention according to claim 5 is characterized in that a cushioning property is provided, wherein a double inner surface is formed by folding at least a part of the inner surface of the middle boat further inward or outward. It has a sliding carton.

  According to a sixth aspect of the present invention, there is provided a sliding carton having cushioning properties, wherein the gap is formed by forming a convex portion between the inner surface and the outer surface. It is.

  The invention according to claim 7 is a sliding carton having cushioning properties, wherein the convex part is a ruled line-shaped convex part.

  The invention according to claim 8 is a sliding carton having cushioning properties, wherein the inner surface and the outer surface are made of the same sheet.

  The invention according to claim 9 is a sliding carton having cushioning properties, wherein the inner surface is subjected to oil-proofing.

  According to the first aspect of the present invention, a boat-shaped middle boat having outer surfaces of the front, rear, left, and right bottoms, and an inner surface that is continuous from the outer surface and is folded inward, In the slide type carton comprising a cylindrical sleeve having upper, lower, left and right outer surfaces covering the boat, a space is formed between the inner surface and the outer surface of the middle boat. It is possible to form a gap between the outer surface and the inner surface of the boat so that the inner surface of the middle boat in contact with the contents has cushioning properties.

  According to the invention described in claim 2, a boat-shaped middle boat having outer surfaces of the front, rear, left and right bottoms and an inner surface continuously provided from the outer surface and folded inward, and the middle boat In the slide type carton comprising a cylindrical sleeve having upper, lower, left, and right outer surfaces covering the space, a gap is formed between the outer surface and the inner surface of the sleeve. It is possible to form a gap between the outer surface and the inner surface of the sleeve so that the inner surface of the sleeve in contact with the contents has cushioning properties.

  According to a third aspect of the present invention, the inner surface is inclined by varying the height of the outer surface and the inner surface of the middle boat to form the gap. Therefore, the inner surface in contact with the contents can be cushioned by a simple configuration in which the inner surface of the middle boat is inclined.

  According to a fourth aspect of the present invention, the inner surface is bent by varying the length or width of the outer surface and the inner surface of the sleeve, so that the gap is formed. Since it is formed, it is possible to give cushioning properties to the inner surface in contact with the contents of the sleeve with a simple configuration in which the inner surface of the sleeve is bent.

  Moreover, according to the invention of claim 5, since the inner surface of the middle boat is further folded inwardly or outwardly, a double inner surface is formed. A larger gap can be formed, and a cushioning property can be reliably obtained even near the end of the inner surface.

  According to a sixth aspect of the present invention, the void is formed by forming a convex portion between the inner surface and the outer surface. Even when the outer surface and the outer surface are in contact with each other, a gap corresponding to the height of the convex portion can be secured at least, so that a more reliable cushion effect can be expected.

  According to a seventh aspect of the present invention, since the convex portion is a ruled line-shaped convex portion, the convex portion can be formed by a conventional method of forming a ruled line. It is possible to form the convex portion by a simple method.

  Further, according to the invention described in claim 8, since the inner surface and the outer surface are made of the same seat, a sliding carton having cushioning properties can be easily obtained at low cost. It can be produced.

  Further, according to the invention of claim 9, since the inner surface is subjected to oil-proof processing, the slide type can be accommodated even if the surface of the contents contains oils and fats. Carton can be provided.

  In this way, it is possible to provide a sliding carton having cushioning properties easily and at low cost.

Embodiments of the present invention will be described below with reference to the drawings.
As an example of the sliding carton 1 (carton 1) having cushioning properties of the present invention, as shown in FIG. 1 (a), a middle boat 10 having a boat shape having an opening K for accommodating the contents is provided. And a sleeve 40 formed of a cylinder having substantially the same shape as the outer shape of the middle boat 10, and as shown in FIG. 1B, the sleeve 40 covers the middle boat 10 in the front-rear direction. And the opening amount of the opening K of the carton 1 is adjusted, and the carton 1 is opened and closed.

  An outer surface (hereinafter also referred to as an outer surface) of the middle boat 10 has an outer surface composed of a total of five surfaces, front, rear, left, right, and bottom, and an inner surface (hereinafter also referred to as an inner surface) of the middle boat 10. ) Has an inner surface composed of a total of five surfaces, front, rear, left, right, and bottom, in contact with the contents excluding the upper opening K. In particular, a gap 7 to be described later is formed between the inner surface and the outer surface of the middle boat 10, and it is possible to provide cushioning properties for a total of five surfaces, front, rear, left, right, and bottom of the middle boat.

  On the other hand, the outer surface (outer surface) of the sleeve 40 has an outer surface consisting of a total of four surfaces, left, right, upper, and lower sides. In addition, an inner surface (inner surface) for having cushioning properties is formed, and cushioning properties of the opening K portion which is the upward direction of the middle boat 10 can be achieved.

  Therefore, the inner surface consisting of the total of five front and rear, right and left and bottom of the middle boat 10 and the upper inner surface of the sleeve 40 have cushioning properties in a total of six front and rear, left and right, top and bottom (all directions) inside the carton 1. It is possible.

Next, the said middle boat 10 which comprises such a slide type carton 1 is demonstrated.
As shown in the development view of FIG. 2, the surfaces constituting the middle boat 10 are connected to each other via folding lines (k, v) on a single sheet.
Here, the fold line k and the fold line v are folded in a valley with a fold line k for folding the sheet along the fold line when a three-dimensional carton is assembled from a sheet-like carton, which will be described later. Is a fold line v.
Moreover, the bonding surface P formed in the outer edge part of a sheet | seat is a surface for bonding each surface at the time of carton formation.
Further, an insertion surface R is formed from the outer left surface 22 and the outer right surface 24 via a fold line, and is a surface inserted between the outer surface and the inner surface when the carton 1 is formed.

First, the central surface 25 shown in the developed view of FIG. 2 is the outer bottom surface 25 of the middle boat 10, and a plurality of surfaces are continuously arranged in a cross shape around the outer bottom surface 25. The arrangement of this surface is not particularly limited as long as it is an arrangement capable of forming an outer surface and an inner surface, which will be described later.
And on the left side of the outer bottom surface 25, the outer left surface 22, the inner left surface 12, the left bottom surface 15, and the bonding surface P are continuously provided via folding lines (k, v).
Further, on the right side of the outer bottom surface 25, an outer right surface 24, an inner right surface 14, a right bottom surface 16, a folding surface 17, and a bonding surface P are connected via folding lines (k, v). It is installed.
Furthermore, the outer front surface 21, the inner front surface 11, and the bonding surface P are continuously provided above the outer bottom surface 25 via folding lines (k, v).
Further, an outer rear surface 23, an inner rear surface 13, and a bonding surface P are continuously provided below the outer bottom surface 25 via folding lines (k, v).

  In particular, the length H (height H) in the height direction of the left and right outer surfaces (outer left surface 22, outer right surface 24) and the length h in the height direction of the left and right inner surfaces (inner left surface 12, inner right surface 14). It is different from (height h) (H ≠ h), and the inner surface height h is lower than the outer surface height H (h <H). Thereby, when the middle boat 10 is formed as described later (paragraph 0037), the left and right inner surfaces of the middle boat 10 form an inclined surface S inclined obliquely, and the gap 7 is formed between the inner surface and the outer surface. Is possible.

  Further, the length H (height H) of the front and rear outer surfaces (outer front surface 21, outer rear surface 23) and the height direction length h of the left and right inner surfaces (inner front surface 11, inner rear surface 13). (Height h) is different from each other (H ≠ h), and the inner surface height h is higher than the outer surface height H (h> H). Thereby, when the middle boat 10 is formed as described later (paragraph 0040), the inner surface before and after the middle boat 10 forms an inclined surface S inclined obliquely, and the gap 7 is formed between the inner surface and the outer surface. Is possible.

  From such a development view (FIG. 2), each surface is folded along a fold line k, folded along a fold line v, and the bonding surface P is bonded to the outer bottom surface 25. A three-dimensional middle boat 10 is formed as shown in FIG.

The outer surface (outer surface) of the middle boat 10 is composed of five front and rear outer surfaces (outer front surface 21, outer rear surface 23, outer left surface 22, outer right surface 24) and one outer bottom surface 25 in total. Form.
Further, the inner surface (inner surface) of the middle boat is composed of front and rear, left and right inner surfaces (inner front surface 11, inner rear surface 13, inner left surface 12, inner right surface 14) and bottom inner surfaces (left bottom surface 15 and right bottom surface 16). , And the folding surface 17 forms a double inner surface at the bottom portion.

Next, the cushioning properties of the left and right surfaces of the middle boat formed in this way will be described.
As shown in FIGS. 4 (a) and 4 (b), the left and right surfaces of the Nakafune 10 have different outer surface heights H and inner surface heights h (H ≠ h). Is smaller than the height H of the outer surface (h <H).
When the bonding surface P is bonded to the outer bottom surface 25, the left and right inner surfaces are bonded to the outer bottom surface 25 by bonding the bonding surface P to the left and right at positions where the inclined surface S is formed. Further, a gap 7 is formed between the bottom inner surfaces (12, 15, 16, 14) and the left and right and bottom outer surfaces (22, 25, 24).

  Moreover, in the upper part of the bonding surface P, the bonding surface P is bonded to the outer bottom surface 25 in a state where the folding surface 17 is folded inward. A double inner surface having a void 7 is formed, and the void 7 can also be formed in the upper portion of the bonding surface P.

  Therefore, the gap 7 is formed between the left and right and bottom inner surfaces of the middle boat and the outer surface of the middle boat, so that the contents in contact with the three inner surfaces of the left and right and bottom of the middle boat 10 are removed from the outer surface. In this way, the left and right and bottom portions of the middle boat 10 can be cushioned.

Next, cushioning properties of the front and rear surfaces of the middle boat 10 will be described.
Further, as shown in FIGS. 5 (a) and 5 (b), the front and rear portions of the middle boat 10 have a height (height) H in the height direction of the outer front surface 21 and a height direction of the inner front surface 11. The length (height) h is different (H ≠ h), and the height h of the inner front surface is higher than the height H of the outer front surface 21 (H <h). Similarly, the height H of the outer rear surface 23 is different from the height h of the inner rear surface (H ≠ h), and the height h of the outer rear surface is higher than the height H of the outer rear surface. Highly formed (H <h).

  And when bonding the bonding surface P to the outer bottom surface 25, the front and rear inner surfaces are bonded to the outer bottom surface 25 by bonding the bonding surface P to the outer bottom surface 25 at a position where the inclined surface S is formed. A gap 7 is formed between the inner surfaces (11, 13) of the front and back and front and rear outer surfaces (21, 23).

  Therefore, the space 7 is formed between the front and rear inner surfaces of the middle boat and the outer surface of the middle boat, so that the contents in contact with the two front and rear inner surfaces of the middle boat 10 are protected from impact from the outer surface. In this way, the front and rear portions of the middle boat 10 can be cushioned.

  In this way, as shown in FIG. 6, the middle boat 10 has a total of five inner surfaces (11, 12, 13, 14, 15, 16) and five outer surfaces (21, 22, 23, 24, 25), the air gap 7 is formed, so that it is possible to have cushioning properties in the five directions of the front, rear, left and right bottoms.

  The void 7 has an inner surface forming an inclined surface S, and in a cross-sectional view, the inclined surface S is a hypotenuse and the outer surface is a height. The larger the angle θ of the portion where the outer surface and the inner surface are in contact with each other, the larger the maximum width (sin θ) of the gap is formed.

  The size of the gap 7 (the gap D having the maximum width) is preferably in a range of usually 2 mm to 5 mm, and a range of 5 mm to 10 mm is appropriate for producing a particularly large cushion effect. Therefore, the angle θ formed between the inner surface and the outer surface is such that when the length h of the inclined surface S (height h of the inner surface) is in the range of 10 mm to 50 mm, from h · sin θ = D, arcsin θ = 0.2 to arcsin θ. = 0.5 is preferable. Therefore, when the angle θ is 10 ° ≦ θ ≦ 30 °, a more appropriate cushioning property can be achieved.

Next, a configuration for producing an upward cushion effect that is the opening K portion of the middle boat 10 will be described below.
The opening K portion of the middle boat 10 is usually covered with a cylindrical sleeve, and the upper part of the contents is in contact with the upper surface of the sleeve. Therefore, by forming a cushioning configuration on the upper and outer surfaces of the sleeve, which is the opening portion of the middle boat 10, it is possible to form a configuration that provides cushioning properties on all the six front, back, left, right, top, and bottom surfaces inside the carton. It is.

For example, as shown in the development view of FIG. 7, the sleeve forming the cylindrical shape has a bonding surface P, an upper outer surface 41, a right outer surface 43, a lower outer surface 44, a left outer surface 42 in the lateral direction, Are connected to each other via a folding line k.
In particular, an upper inner surface 45 is further provided on the upper outer surface 41 in the longitudinal direction of the upper outer surface 41 via a fold line k, and a bonding surface F is further provided continuously from the upper inner surface 45. . The length l in the longitudinal direction of the upper inner surface 45 is longer than the length L in the longitudinal direction of the upper outer surface 41 (l> L), and the sleeve 40 is formed as described later (paragraph 0049). In this case, it is possible to form the upper inner surface 45 having cushioning properties inside the upper outer surface 41.

  From such a development (FIG. 7), each surface is folded inward along the fold line k, and the bonding surface P and the left outer surface 42 are bonded together to form a cylindrical sleeve 40. Furthermore, the sleeve 40 as shown in FIG. 8 is formed by folding the bonding surface F formed at the tip portion of the upper inner surface 45 inward and bonding it to one end of the upper outer surface 41.

  In particular, since the upper inner surface 45 of the sleeve 40 has a shape longer in the longitudinal direction than the upper outer surface 41, when the sleeve 40 is formed, as shown in FIGS. 9A and 9B, On the other hand, the upper inner surface 45 has a bent shape β, and a gap 7 is formed between the outer surface and the inner surface. Therefore, it is possible to give cushioning properties to the upper surface of the sleeve, that is, the opening K portion of the middle boat, by the gap 7.

  Further, the sleeve 40 may have different lengths in the width direction. For example, as shown in the development view of FIG. 10A, the bonding surface P and the upper inner surface 45 are arranged in the lateral direction from the left. The bonding surface P, the outer lower surface 44, the outer left surface 42, the outer upper surface 41, and the outer right surface 43 are connected to each other via a fold line k. In particular, the lateral width w of the upper inner surface 45 is By forming the sleeve longer than the lateral width W of the upper outer surface 41, as shown in FIG. 10B, the upper inner surface 45 of the shape β is bent in the width direction with respect to the outer upper surface 41. By forming a gap 7 between the outer surface and the inner surface, a sleeve having cushioning properties may be formed.

  In this way, a carton 1 is formed by combining the middle boat 10 and the sleeve 40, and when the carton 1 is sealed, as shown in FIG. (Inner front surface 11, inner left surface 12, inner rear surface 13, inner right surface 14, inner bottom surface 15, upper inner surface 45) and outer surfaces (outer front surface 21, outer left surface 22, outer rear surface 23, outer right surface 24, outer Cavities 7 are respectively formed between the bottom surface 25 and the upper and outer surfaces 41) of the sleeve so as to provide a cushion effect that protects the contents inside the carton.

  Even when the carton 1 is opened, as shown in FIG. 12, since the upper inner surface 45 of the sleeve 40 of the opening K is formed integrally with the sleeve 40, the insole C is opened as in the conventional case. Since the opening of the middle boat is formed without becoming the middle boat 10 in a state where it is covered, there is an effect that the contents can be taken out smoothly.

  As described above, the sliding carton 1 of the present invention has a cushioning effect for protecting the contents by forming a gap 7 between the inner surface in contact with the contents and the outer surface of the carton. It is.

  Moreover, you may form the said space | gap 7 by forming the convex part B between the said inner surface and the said outer surface. For example, as shown in the developed view of FIG. 13, the inner surface (12, 15, 14, 16, 17, 11, 13) of the middle boat 10 is subjected to stripe processing, and a ruled line-shaped convex portion B is formed on the back side of each inner surface. By forming, it is possible to more reliably provide a cushioning effect.

  This convex part B is formed on the back side of the inner surface under the front, rear, left and right, so that, as shown in the sectional views of FIGS. 14 (a) and 14 (b), the vicinity of the fold line k where the outer surface and the inner surface are in contact, It is possible to forcibly secure the gap 7 for the height of the convex portion B at a location where the inner surface is easily in contact with the outer surface, such as the vicinity of the bonding surface p.

  Furthermore, the inner surface and the outer surface are in direct contact with each other when the inner panel sinks downward due to its own weight due to vibration during transportation or when the inner panel is distorted laterally. Since the plurality of convex portions B formed on the back side of the inner surface are in contact with the outer surface, even if the convex portion B and the outer surface are in contact with each other, at least a gap corresponding to the height of the convex portion B is secured. It is possible.

  In this way, by forming the gap 7 between the inner surface of the middle boat 10 and the sleeve 40 in contact with the contents and the outer outer surface, and further forming the convex portion B on the entire back side of the inner surface, As shown in FIG. 15, a gap is formed between the outer surface and the inner surface of the carton, and even when the gap is narrowed by a shock or the like, it is formed on the back side of the inner surface before the inner surface and the outer surface come into surface contact. Since the convex portion comes into line contact with the outer surface, it is possible to reduce the shock and reliably provide a cushioning effect.

Moreover, although the said convex part B showed the case of the ruled line shape which has a convex shape, the point which has not only a ruled line but a convex shape may be sufficient. Further, the shape is not limited to a straight line, but may be any shape such as a curved line or a broken line as long as a gap can be formed between the inner surface and the outer surface.
Moreover, although the example which formed the said convex part in the back side of the inner surface was shown, you may form not only in this but in the back side of an outer surface, and also each back surface of an inner surface and an outer surface. In particular, a larger cushion effect can be achieved by forming the inner surface and the outer surface respectively so that the convex portions of the inner surface and the outer surface face each other. Moreover, you may form between the outer surface and inner surface of a sleeve, and if the formation location of a convex part is between an outer surface and an inner surface, it will not be limited.

  In addition, the sliding carton 1 of the present invention is a low-cost sliding carton that has not only cushioning properties but also oil resistance by applying an oil-resistant coating to the inner surface that is in direct contact with the contents. Can be produced. The oil-resistant coating material is not particularly limited as long as it has oil resistance such as acrylic resin coat, silicon, fluorine processing, and polypropylene film. Further, after printing on the inner surface, an oil-proofing process may be performed on the printed surface.

  The material of the material for forming the sliding carton 1 of the present invention is not limited to paper, but a wide range of sheets (blanks) such as plastic sheets and multilayer coating films can be used, but there is rigidity and bending strength. A strong card system and special plate system can be suitably used. Further, when used over a long period of time, a film made of polyvinyl chloride, polypropylene, polyethylene, polyethylene terephthalate, polycarbonate, polystyrene, or the like may be laminated on the paperboard in order to prevent breakage from broken lines or cut lines. In addition, this laminate can improve moisture resistance.

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

  Any known printing method such as offset, gravure and silk screen may be used for printing on the blank substrate. Further, post-processing such as embossing, foil stamping and OP varnish coating 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. In addition, it is preferable that the slide carton according to the present invention is overlapped with a moisture-proof plastic film after molding and filling in order to improve sealing performance and prevent dust from being mixed.

It is a figure which shows the slide type carton of this invention. (A) It is a figure which shows before inserting a middle boat into a sleeve. (B) It is a figure which shows after inserting a middle boat into a sleeve. It is a figure which shows an example of the expanded view of Nakafune. It is a whole perspective view which shows a Nakafune. It is partial cutting explanatory drawing of Nakafune. (A) It is a transverse cut perspective view of a middle boat. (B) It is a cross-sectional view of the Nakabune. It is partial cutting explanatory drawing of Nakafune. (A) It is a vertical cut perspective view of a middle boat. (B) It is a longitudinal cross-sectional view of a middle boat. It is a partially cutaway view of Nakafune. It is a figure which shows an example of the expanded view of a sleeve. It is a perspective view which shows a sleeve. It is a partial cutting explanatory view of a sleeve. (A) It is a longitudinal cut perspective view of a sleeve. (A) It is a longitudinal cross-sectional view of a sleeve. It is a figure which shows another example of a sleeve. (A) It is a development view of a sleeve. (B) It is a front view of a sleeve. It is a partially cut explanatory drawing which shows the time of closure of the slide type carton of this invention. It is a partially cut explanatory drawing which shows the time of opening of the slide type carton of this invention. It is an expanded view which shows another example of the slide type carton of this invention. It is sectional drawing which shows another example of Nakafune. (A) It is a cross-sectional view of the Nakabune. (B) It is a longitudinal cross-sectional view of a middle boat. It is a partially cutaway view of Nakafune. It is a figure which shows the conventional slide type carton.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Sliding carton 7 Cavity 10 Middle boat 11 Inner front surface 12 Inner left surface 13 Inner rear surface 14 Inner right surface 15 Inner bottom surface 16 Inner bottom surface Double inner surface 21 Outer front surface 22 Outer left surface 23 Outer rear surface 24 Outer right surface 25 Outer bottom surface 40 Sleeve 41 Outer Upper surface 42 Outer left surface 43 Outer right surface 44 Outer lower surface 45 Upper inner surface K Opening P, F Bonding surface B Convex S Slope (inclined surface)
k, v fold line

Claims (9)

  A boat-shaped middle boat having an outer surface of the front, rear, left, and right bottoms, and an inner surface that is continuous from the outer surface and folded inward, and a cylindrical shape having upper, lower, left, and right outer surfaces that cover the middle boat A sliding carton having a cushioning property, wherein a gap is formed between the inner surface and the outer surface of the middle boat.   A boat-shaped middle boat having an outer surface of the front, rear, left, and right bottoms, and an inner surface that is continuous from the outer surface and folded inward, and a cylindrical shape having upper, lower, left, and right outer surfaces that cover the middle boat A sliding carton having a cushioning property, wherein a gap is formed between the outer surface and the inner surface of the sleeve.   2. The air gap is formed by inclining the inner surface by varying the height of the outer surface and the inner surface of the middle boat, respectively. A sliding carton with cushioning properties.   3. The gap is formed by bending the inner surface by varying the length or width of the outer surface and the inner surface of the sleeve, respectively. Sliding carton with cushioning properties.   The sliding type having a cushioning property according to claim 1 or 3, wherein a double inner surface is formed by further folding at least a part of the inner surface of the middle boat inward or outward. carton.   6. The sliding carton having cushioning properties according to claim 1, wherein the gap is formed by forming a convex portion between the inner surface and the outer surface.   The sliding carton having cushioning properties according to claim 1, wherein the convex part is a ruled line-shaped convex part.   The sliding inner carton having cushioning properties according to claim 1, wherein the inner surface and the outer surface are made of the same sheet.   9. The sliding carton having cushioning properties according to claim 1, wherein the inner surface is subjected to an oil-proofing process.

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