JP2019116293A - Packaging container - Google Patents

Abstract

To provide a packaging container having a new simple and economical structure with which a stored item may be easily taken out since when an inner box is drawn from an outer box, the inner box is brought to be opened.SOLUTION: An inner box 5 is provided, which may slide out from an outer box 3. The inner box 5 comprises an inner member 7 made of synthetic resin. The inner member 7 comprises a tray part 9 in which an item may be stored, and an inner rid part 13 which may slide to cover top of the tray part 9. The tray part 9 has a slide groove part successive in slide direction of the inner box 5 on an upper end surface of a side surface positioned in a direction orthogonal to drawing direction. The inner rid part 13 has a size for covering upper opening part of the tray part 9 and a configuration to comprise a guide projecting part sliding on the slide groove part on its side edge. When a friction force generated between the inner rid part 13 and the outer box 3 is defined as a, and a friction force generated between the inner rid part 13 and the tray part 9 is defined as b, a relationship a>b is satisfied.SELECTED DRAWING: Figure 13

Description

  BACKGROUND OF THE INVENTION Field of the Invention The present invention relates to a packaging container in which an inner box can be pulled out of an outer box to take out an inclusion.

As a packaging container of this type, for example, a packaging container of granular chocolate confectionery (inclusion) such as almond chocolate is known.
For example, a container for packaging chocolate confectionery of this type is a rectangular outer box whose end face is open and a rectangular shape whose upper face is open, which is accommodated in the outer box and from the open end face of the outer box An inner box which can slide in and out, and a sheet-like inner lid made of glassine paper which is disposed so that one end side is fixed to the inner box and the chocolate confection contained in the inner box is covered. It consists of
The inner cover portion is adopted for the purpose of protecting the chocolate confectionery contained therein from the impact received from the outside, and the purpose of preventing the oil coming out of the chocolate confectionery from bleeding into the outer box.

By the way, in order to eat the chocolate confectionery contained in this kind of packaging container, after sliding the inner box out of the outer box and pulling out, the sheet-like middle lid covering the upper surface of the inner box is removed. I have to scoop it up and take it out. That is, it is because this sheet-like middle lid part is always covered on the upper part of chocolate confectionery by dead weight.
However, if the chocolate confectionery is, for example, granular which is easy to roll, even if it is tried to lift up the sheet-like inner lid, the contained chocolate confection rolls within the inner box, and the sheet-like inner lid It is difficult to pick up
In addition, as the chocolate confectionery is eaten, the amount of contained chocolate confectionery decreases, and inevitably, the amount of chocolate confectionery supporting the sheet-like inner lid decreases. In such a state, the end of the sheet-like inner cover (the end of the free end located on the inner box drawer side) may be positioned down to the inner bottom surface of the inner box by its own weight. And there was a problem that it was more difficult to get up.
Furthermore, when the finger is removed from the middle lid which was being lifted up, the middle lid is again covered on the chocolate confection, so it was necessary to lift the middle lid each time.

Then, in order to solve the subject mentioned above, the packaging container which has a structure which is disclosed by patent document 1 is proposed.
According to the packaging container disclosed in Patent Document 1, when one end (free end) side of the sheet-like inner lid is adhered to the outer box and the inner box is pulled out, the sheet-like inner lid curls up, It has a structure that chocolate candy appears.
If it is a container for packaging provided with such a structure, the operation | work of twisting a sheet-like middle lid part becomes unnecessary separately, and it becomes easy to take out chocolate confectionery.

JP, 2013-18521, A

  However, in the case of such prior art, in the manufacturing process of the packaging container, many steps such as a step of bonding one end (free end) side of the sheet-like inner lid portion to the outer box via an adhesive It had the problem that it took time and extra manufacturing time. In addition, since it is difficult to mechanically bond one end (free end) side of the sheet-like inner lid portion to the outer box via an adhesive, a worker must be engaged and carried out. In addition, it had the problem that labor costs would increase as well as

  The present invention is made to solve this problem, and its object is to provide a simple and inexpensive new structure in which the inside of the inner box is opened and the inclusions can be easily taken out when the inner box is pulled out from the outer box. Providing a packaging container.

In order to achieve such an object, according to a first aspect of the present invention, there is provided an outer case provided with at least one open outlet.
And an inner box which is accommodated in the outer box and which can slide in and out from the outlet.
The inner box includes an inner member made of synthetic resin,
The inner member has an open upper surface, a tray portion capable of containing the inclusions, and a sliding movement on the tray portion, and the inner case is accommodated in the outer case, the open upper surface of the tray portion And a middle lid covering at least
Let the frictional force generated between the said inner cover part and the said outer case be a,
When the frictional force generated between the inner lid portion and the tray portion is b,
A packaging container characterized by having a relationship of a> b.

According to a second aspect of the present invention, in the first aspect, the tray portion has a slide groove portion of a predetermined length continuous in the sliding direction of the inner box on the upper end surface of the side surface positioned in the direction orthogonal to the drawing direction. Is formed,
The inner lid portion is formed at a side edge located on the upper end surface of the side surface of the tray portion, with a guide projection portion which can come in sliding contact with the slide groove portion. It is.

According to a third aspect of the present invention, in the second aspect, the guide projection is provided with a locking portion.
The sliding groove portion is provided with a locked portion capable of being locked by the locking portion.

According to a fourth aspect of the present invention, in the third aspect,
The locking portion is provided in a concave shape on the surface facing the slide groove in the guide protrusion,
The said to-be-locked part is a container for packaging characterized by being provided in convex shape in the said guide projection part opposing surface in the said slide groove part.

According to a fifth aspect of the present invention, in the fourth aspect, the guide projection is formed in a long protrusion with a predetermined length in the slide direction.
The locking portions are provided one by one at both ends in the sliding direction in the guide protrusion of the long protrusion,
The said to-be-locked part is a packaging container characterized by being provided one each at the both ends of the slide direction in the said slide groove part.

  According to a sixth aspect of the present invention, in any one of the first to fifth aspects of the present invention, the inner lid portion includes an upper inner surface of the outer box on the upper surface side facing the upper inner surface of the outer box. A packaging container characterized by being provided with a contactable convex portion.

  According to the present invention, it is possible to provide a packaging container having a simple and inexpensive novel structure in which the inside of the inner box is opened when the inner box is pulled out from the box and the inclusions can be easily taken out.

The top view of the inner member which comprises the packaging container of this embodiment, and the state which the inner cover part has closed is shown. The top view of the inner member which comprises the packaging container of this embodiment, and shows the state which the inner cover part is opening. It is the III-III sectional view taken on the line of FIG. It is the IV-IV sectional view taken on the line of FIG. It is the VV sectional view taken on the line of FIG. (A) is a partial enlarged view of FIG. 3; (b) is a partial enlargement of a state in which an open area is formed between the tray part and the inner lid part by sliding out the tray part from the state of (a) FIG. It is a top view of an inner cover part. It is a side view of an inner cover part. The front view of a middle lid part WHEREIN: A guide protrusion part is expanded and shown. It is a top view of a tray part. It is a side view of a tray part. It is a front view of a tray part. It is a schematic sectional drawing which shows the operation state of the packaging container of this embodiment, (a) is a state in which the inner case is accommodated in the outer case, (b) is a state where the inner case is slid and pulled out, (c) Each shows the state which pulled out the inner box further from the state of (b). In the elements on larger scale of (a) of FIG. 13, the chocolate confectionery included is shown with an imaginary line. FIG. 2 is a schematic perspective view showing an enlarged portion at the outlet side of the packaging container of the present embodiment, in which a state in which the inner box is pulled out of the outer box is indicated by an imaginary line.

Hereinafter, a packaging container according to an embodiment of the present invention will be described with reference to the attached drawings. In the present embodiment, a packaging container for food containing granular chocolate confectionery such as almond chocolate as an inclusion is assumed.
The present embodiment is only an embodiment of the present invention, and is not to be construed as being limited thereto, and design changes can be made within the scope of the present invention.

The packaging container 1 of the present embodiment is composed of a paper outer case 3 and an inner case 5 housed in the outer case 3.
Although not shown, after the chocolate confectionery (inclusion) 21 is contained, the entire outer case 3 is packaged with an exterior film (not shown).

The outer case 3 is formed in a rectangular tube shape having a rectangular shape in a plan view in which the end surfaces on both sides are opened.
In the present embodiment, the left and right end surfaces are opened, and one open end surface is used as the outlet 3a. Moreover, in order to make it intelligible that it is the extraction opening 3a side, the predetermined notch area 3b is provided in the edge part by the side of the extraction opening 3a in the side in the outer case 3 (refer FIG. 15).
This notched area 3b not only shows that it is on the side of the outlet 3a, but also has a structure in which a part of the inner box 5 is exposed from the notched area 3b. By holding and pulling out the inner box 5 exposed from the notch area 3b, the pulling operation (slide operation) becomes easy.
Since it is sufficient to provide at least one open outlet, either left or right end face may be closed without being opened.
The outer case 3 is not limited to the present embodiment and can be appropriately designed and changed within the scope of the present invention.

The inner box 5 is housed in the outer box 3 and has a configuration that can slide in and out from the outlet 3a. For example, in the present embodiment, the inner box main body 6 made of paper and the inner box It is comprised including the synthetic resin inner member 7 accommodated in the main body 6.
The inner box main body 6 is formed in a rectangular shape in plan view with an open upper surface, and has a concave accommodation space having a height (depth) at which the inner member 7 can be installed.
The length L1 of the inner box main body 6 is set to be substantially the same as the length L2 of the outer box 3, and the width W1 and the height H1 are set to be in sliding contact with the inner surface of the outer box 3, respectively.
In each of the drawings, S1 indicates the pulling direction (sliding direction) of the inner box 5 (or the tray portion 9), and X1 indicates a direction orthogonal to the pulling direction of the inner box 5.

  The inner member 7 is composed of a tray 9 made of synthetic resin and a middle lid 13 made of synthetic resin.

The tray portion 9 is formed in a rectangular shape in a plan view having an open upper surface and a concave inner portion 9 b capable of containing the chocolate confectionery (inclusion) 21.
Further, in the present embodiment, the uneven portion 9 g is formed on the inner bottom surface of the inner portion 9 b of the tray portion 9.
This uneven portion 9g has a role as a cushion for protecting the contained chocolate confectionery 21 from impact, and reduces the contact area of the chocolate confectionery 21 and prevents the chocolate confectionery 21 from sticking to the inner bottom surface. Have a role. In the present embodiment, a concave portion 9h and a convex portion are formed so as to be bridged across a direction X1 orthogonal to the pulling direction S1 of the inner box 5, that is, between side walls (side surfaces) 9c and 9c of the tray portion 9. 9i are alternately arranged in parallel. The concavo-convex portion 9 g is not a form in which the concave streak portion 9 h and the convex streak portion 9 i are alternately arranged side by side as in the present embodiment, for example, a hemispherical concave portion and a hemispherical convex portion And the like may be formed, and design changes can be made within the scope of the present invention.
The length L3 of the tray portion 9 is set shorter than the length L1 of the inner box main body 6, the width W3 is set smaller than the width W1 of the inner box main body 6, and the height H3 is the height of the inner box main body 6 It is set substantially the same as or slightly lower than H 1 and is internally mounted in the inner box body 6.

  The upper end surface 9d of the side wall (side surface) 9c of the tray portion 9, that is, the upper end surface 9d of the side wall (side surface) 9c located in the direction X1 orthogonal to the drawing direction (slide direction) S1 of the inner box 5 A slide groove portion 11 having a predetermined length and a predetermined depth and continuous in a predetermined range in the drawing direction S1 of the is formed in a concave shape.

The slide groove portion 11 has a height slide surface 11a formed one step lower than the upper end surface 9d, and a low position slide surface formed continuously lower one step higher than the height slide surface 11a inside the height slide surface 11a. And 11b, and is formed in a step-like shape.
The height slide surface 11a functions as a first opposing surface on which the outer guide projection 15a of the guide projection 15 provided on the inner cover 13 described later is in sliding contact with each other, and the low slide surface 11b is The inner guiding projection 15b of the guiding projection 15 functions as a second opposing surface which is in contact and in sliding contact with each other.

Convex engaging portions 11e and 11f are provided on the low-place slide surface (second opposing surface) 11b.
The engaged portions 11e and 11f are provided in a curved convex shape with a gentle curved surface from the lower slide surface 11b.
In this embodiment, in the low-place slide surface (second opposing surface) 11b, the end portions 11c on both sides at the end portions 11c (outlet side) and 11d (anti-outlet side) on both sides in the slide direction S1. A predetermined distance is slightly separated from each of 11 d, and both of the engaged portions 11 e and 11 f are provided one by one at positions separated by a predetermined distance.
The locked portion 11e on the outlet side is called a first locked portion, and the locked portion 11f on the opposite side of the outlet is called a second locked portion.

  In the present embodiment, the slide groove portion 11 is formed about half the length of the entire upper end surface of the side wall (side surface) in a state in which the slide groove portion 11 is close to the non-extraction port side. The upper end surface 9d of the side wall (side surface) 9c except for the region 9e on the side of the outlet is formed wider (longer) than the region 9f on the side opposite to the outlet.

The inner cover portion 13 is formed in a rectangular thin-walled sheet shape having a size enough to cover the entire open upper surface of the tray portion 9 when the inner case 5 is accommodated in the outer case 3.
Further, in the present embodiment, the end portion 13a on the outlet side is formed with the finger hooking recess 23 recessed toward the opposite side of the outlet side. Furthermore, an arrow 25 is provided in the vicinity of the finger hooking notch 23 to indicate the direction in which the middle lid 13 relatively moves.

The middle lid portion 13 is configured to slide on the tray portion 9 in the pull-out direction S1 on the upper end surface 9d of the side wall (side surface) 9c of the tray portion 9.
For example, to explain the example, the sliding groove portion 11 of the tray portion 9 is in sliding contact with the inner surface (inner surface of the side edge) of the middle lid portion 13 in sliding contact with the upper end surface 9d of the side wall (side surface) 9c of the tray portion 9 A guide projection 15 is provided to guide the movement of the tray 9 in the pull-out direction S1.

The guide protrusion 15 of the present embodiment is formed into a long protrusion with a predetermined length in the pull-out direction S1. Specifically, it is formed one step lower than the inner surface of the inner lid 13 and is continuous from the outer guide projection 15a which can be in sliding contact with the height slide surface 11a of the tray 9 and the outer guide projection 15a. The inner guide projection 15b is formed one step lower and is in sliding contact with the lower slide surface 11b of the tray 9.
Further, the guide protrusion 15 of the present embodiment has a length of about 1/2 of the entire length of the slide groove 11 and is somewhat opposite to the withdrawal opening in the length direction of the inner lid 13 (draw direction S1). It is formed in the state close to the side.
That is, when the guide projection 15 abuts on the end (the outlet side) 11c of the slide groove 11, the end (the outlet side) 13a of the inner cover 13 is the end (the outlet side) of the tray 9. The position of the guide projection 15 is set so as to be at a position overlapping with the position 9a (the middle lid closing position A1 shown in FIGS. 1 and 3).

  The outer side surface 15c of the inner side guide protrusion 15b is in sliding contact with the respective vertical installation walls 11g which are continuously provided from the height slide surface 11a to the lower slide surface 11b. Therefore, when the inner box 5 is slid and pulled out, the inner lid 13 can be guided without being displaced outward.

Locked portions (one on the lower sliding surface 11b at each end of the pulling direction S1 on the sliding surface of the inner guide projection 15b facing the lower sliding surface 11b of the tray 9) Locking portions 15f and 15g that can be locked to the first locked portion 11e and the locked portion (second locked portion) 11f are provided in a concave shape.
The lock portion 15f on the outlet side that can lock to the first locked portion 11e is referred to as a first lock portion, and the engagement on the opposite outlet side that can lock to the second locked portion 11f. The stop portion 15g is referred to as a second locking portion.

  The first locking portion 15f and the second locking portion 15g are engaged with and engaged with the first locked portion 11e and the second locked portion 11f provided in a curved convex shape with a gentle curved surface. In order to be able to stop, each is provided in a curved concave shape with a gentle curved surface.

  Further, the inner cover 13 of the present embodiment is provided with a convex portion 17 capable of making a light contact with the inner surface (upper inner surface 3c) of the outer box 3 on the upper surface side facing the inner surface (upper inner surface 3c) of the outer case 3 It is done.

  The convex portion 17 is a protrusion having a predetermined length continuously extending between the side edges on the upper surface side of the middle lid portion 13, and a plurality of convex portions 17 are provided at predetermined intervals in the drawing direction (sliding direction) S1.

Further, the convex portion 17 is set to a length not to be caught by the upper end surface 9 d of the side wall 9 c of the tray portion 9.
Furthermore, when the inner lid 13 is disposed above the tray 9, the convex 17 is formed to be slightly higher than the height H1 of the inner box 5 (inner box main body 6). When the box 5 is incorporated into the outer case 3, the convex portion 17 is set to lightly contact the upper inner surface 3 c of the outer case 3.

That is, by setting the convex portion 17 to be in light contact with the upper inner surface 3 c of the outer box 3, friction is generated between the inner cover 13 and the upper inner surface 3 c of the outer box 3. If it is made to slide and it is going to pull out from the outer box 3, only the inner box main body 6 and the tray part 9 will be pulled out in the state which left the inner cover part 13. FIG.
In order to exert such an effect, in the present embodiment, the tray portion 9 and the middle lid portion 13 constituting the inner member 7 are molded using a synthetic resin material having a low frictional force. That is, the frictional force generated between the slide groove 11 of the tray 9 and the guide projection 15 of the middle lid 13 is b, and the convex 17 on the upper surface of the middle lid 13 and the upper inner surface 3c of the outer box 3 When the frictional force generated between them is a, it is configured to have a relationship of a> b. Thus, the frictional force b generated between the slide groove 11 of the tray 9 and the guide projection 15 of the middle lid 13 is the convexity 17 of the upper surface of the middle lid 13 and the upper inner surface 3 c of the outer box 3. By making it smaller than the frictional force a which arises between them, when sliding the inner box 5 and pulling it out, the effect | action that the inner cover part 13 is left is exhibited.

  The protrusion 17 is different from the one having a plurality of protrusions as in the present embodiment, and protrudes in a predetermined shape such as one having a large number of hemispherical protrusions, and is between the upper inner surface 3 c of the outer case 3 Within the scope of the present invention, any design change can be made as long as light friction can be generated.

  According to the packaging container 1 of the present embodiment, the following effects are exhibited.

After the tray portion 9 is accommodated in the inner box main body 6 and filled with the chocolate confectionery 21 by a predetermined volume, the guide protrusion 15 is brought into sliding contact with the slide groove portion 11 of the tray portion 9 to cover the tray portion 9. When the portion 13 is disposed, the convex portion on the upper surface of the inner lid 13 slightly protrudes from the upper end of the side wall 6a of the inner box main body 6 in the height direction of the inner box main body 6 (FIG. 3, FIG. a), Fig. 13 (a), Fig. 14).
Further, at this time, the first locking portion 15 f formed in the guide projection 15 of the middle lid 13 is a first object formed in the slide groove (lower slide surface) 11 of the tray 9. It is fitted in the locking portion 11e and in the locked state (FIG. 3, FIG. 9 (a), FIG. 13 (a)).
And if it accommodates in the outer case 3 in this state, the convex part of the upper surface of the inner cover part 13 will be in the state which is lightly in contact with the upper inner surface of the outer case 3 (Fig.13 (a), FIG.14). .

Therefore, when pulling out the inner box 5 to eat the chocolate confectionery 21, the frictional force generated between the slide groove portion 11 of the tray portion 9 and the guide projection portion 15 of the middle lid portion 13 is convex on the upper surface of the middle lid portion 13. Since it is smaller than the frictional force generated between the part and the upper inner surface of the outer box 3, the inner cover 13 is left when the inner box 5 is slid and pulled out (FIG. 13 (b)).
Thus, the first locking portion 15 f formed on the guide protrusion 15 of the inner lid 13 and the first locked portion formed on the slide groove portion (lower slide surface) 11 of the tray portion 9 The locked state with the portion 11 e is released, and only the inner box main body 6 and the tray portion 9 slide and are pulled out while the slide groove portion 11 is in sliding contact with the guide protrusion portion 15. I will be left behind.
Then, the inner box 5 (tray 9) is held until the second hook 15g formed on the guide projection 15 locks to the second hook 11f formed on the tray 9. Drawing out (FIG. 13 (b) which shows middle lid part opening position A2).
Since the middle lid 13 is not pulled out with the inner box main body 6 (tray 9), between the end of the inner box main 6 (the end of the tray 9) and the end of the middle lid 13 The predetermined opening area is automatically formed. Thereby, the chocolate confectionery freely contained can be taken out and eaten, without touching the inner cover part 13 (FIG. 13 (b)).

  FIG. 13C shows a state in which the inner box 5 is further slid and pulled out from the state of FIG. 13B. At this time, the second locking portion 15g formed in the guiding protrusion 15 is locked to the second engaged portion 11f formed in the tray 9, and the end portion of the guiding protrusion 15 Since the non-extraction port side abuts on the end of the slide groove 11 (non-extraction port side), the inner lid 13 is pulled out from the inside of the outer box 3 together with the inner box main body 6 (tray 9). By pulling out to such a state, a part of the inner lid 13 (the end on the outlet side) appears, so that a part of the inner lid 13 (the end on the outlet side) is picked up and rolled up In this case, the open area can be made larger than that in the state of FIG. 13 (b).

When the inner box 5 is slid and pulled out, the open area of the inner lid 13 can be arbitrarily changed in design.
For example, the smaller (shorter) the size (length) of the guide protrusion 15 with respect to the size (length) of the slide groove portion 11, the more the direction in which the inner box main body 6 (tray portion 9) is pulled out Since the movement distance is long, the distance of the end (outlet side) of the inner lid 13 from the end (outlet side) of the tray 9 is long. That is, the open area becomes wider. Further, even if the slide groove portion 11 is formed long, the same function and effect can be exhibited.
In addition, only one locking portion may be formed on the sliding contact surface of the inner guide projection.

Furthermore, although not shown, three or more locking portions are formed on the sliding contact surface of the inner guide projection, and the first locked portion 11e and the second locked portion 11f of the slide groove 11 are formed. A middle lid closing position A1 in which the third locking portion is provided in a convex shape, and the first locking portion 15f is locked to the first locking portion 11e, and the second Between the second lid opening position A2 where the second locking portion 15g is locked to the locked portion 11f, a second opening position that is opened smaller than the opening position is formed. It may be optional.
"Other embodiments"

  Unlike the configuration of the present embodiment described above, although not shown, it is also possible to configure the tray portion 9 and the middle lid portion 13 constituting the inner member 7 as follows.

For example, the slide groove portion of the tray portion has a height slide surface formed one step lower than the upper end surface of the side wall, and a low formed continuously lower than the height slide surface outside the height slide surface. It may be formed in the shape of a step composed of a sliding surface. That is, it is assumed that the positions of the high-place slide surface and the low-place slide surface are formed inside and outside of the above-described embodiment at the opposite positions.
The guide projection of the inner cover is formed one step lower than the inner surface of the inner cover, and is provided with an inner guide projection which can be in sliding contact with the sliding surface of the tray at a height, and more than the inner guide projection. It is assumed that it is formed on the outer side and one step lower than the inner guide projection continuously, and is constituted by the outer guide projection which can be in sliding contact with the lower slide surface of the tray portion. That is, the positions of the inner guide protrusion and the outer guide protrusion are formed at the opposite positions inside and outside the above-described embodiment.
Even with this configuration, the same effects as those of the above-described embodiment can be exhibited.
Furthermore, in the present embodiment, the slide groove portion 11 is formed in the tray portion 9, and the guide protrusion portion 15 in sliding contact with the slide groove portion 11 is formed in the middle lid portion 13. The same slide groove as in this embodiment is formed on the inner surface of the edge (the inner surface of the side edge), and a guide projection slidingly in contact with the slide groove is formed on the upper end surface of the side wall (side surface) of the tray as in this embodiment. It is also possible to take the form of and is within the scope of the present invention.
Moreover, in this embodiment, although the inner box 5 is comprised by the paper-made inner box main body 6 and the synthetic resin inner member 7 accommodated in the inner box main body 6, the paper inner box is comprised. It is also possible to omit the main body 6 and construct the inner box 5 with only the inner member 7 made of synthetic resin, which is within the scope of the present invention.

  The present invention is also applicable to packaging containers for food other than chocolate confectionery, and further to packaging containers other than food.

Reference Signs List 1 packaging container 3 outer box 3a outlet 5 inner box 7 inner member 9 tray portion 9c side surface (side wall)
9 d Upper end face 11 Slide groove 13 Middle lid 15 Guide projection S1 Pull-out direction X1 Direction orthogonal to the pull-out direction

Claims (6)

An outer box with at least one open outlet;
And an inner box which is accommodated in the outer box and which can slide in and out from the outlet.
The inner box includes an inner member made of synthetic resin,
The inner member has an open upper surface, a tray portion capable of containing the inclusions, and a sliding movement on the tray portion, and the inner case is accommodated in the outer case, the open upper surface of the tray portion And a middle lid covering at least
Let the frictional force generated between the said inner cover part and the said outer case be a,
When the frictional force generated between the inner lid portion and the tray portion is b,
A packaging container characterized by having a relationship of a> b. In the tray portion, a slide groove portion having a predetermined length continuous in the sliding direction of the inner box is formed on the upper end surface of the side surface located in the direction orthogonal to the drawing direction.
The said inner cover part is provided with the guide protrusion which can be in sliding contact with the said slide groove part in the side edge located in the upper end surface of the side of the said tray part, It is characterized by the above-mentioned. Packaging container. The guide protrusion is provided with a locking portion,
The packaging container according to claim 2, wherein the slide groove portion is provided with a locked portion to which the locking portion can be locked. The locking portion is provided in a concave shape on the surface facing the slide groove in the guide protrusion,
The packaging container according to claim 3, wherein the engaged portion is provided in a convex shape on the facing surface of the guide protrusion portion in the slide groove portion. The guide protrusion is formed in a long protrusion with a predetermined length in the slide direction,
The locking portions are provided one by one at both ends in the sliding direction in the guide protrusion of the long protrusion,
5. The packaging container according to claim 4, wherein the engaged portion is provided in each of the slide groove portions at both ends in the sliding direction.   The said inner cover part is equipped with the convex part which can contact the upper inner surface of the said outer case on the upper surface side which opposes the upper inner surface of the said outer case, The any one of the Claims 1 thru | or 5 characterized by the above-mentioned. Packaging container as described in.

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