JP2001122305A - Fitting container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily and reliably insert a lid into a container body in a fitting container wherein an outer periphery of an opening of the container body and the outer periphery of the lid are pressure-fitted with each other for fitting, to permit a highly sealable fitting state, and further to easily confirm that the fitting state is reached. SOLUTION: A fitting protrusion 16 is provided inside the outer periphery of an opening of a container body, and a fitting recess 26 to be fitted with the protrusion 16 is provided inside an outer periphery of a lid. In this case, an outer dimension Y of an insert 27 positioned on a lower part of the recess 26 of the lid is formed to be smaller than an inner dimension X of a lid guide 17 positioned on an upper part of the protrusion 16 of the container body and also larger than an inner dimension Z on the protrusion 17 of the container body.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fitting container manufactured mainly by vacuum molding or air pressure molding or a combination of both, and can be used, for example, as a food container which can be heated and cooked in a microwave oven while containing food. The present invention relates to a fitting container that can be used.

[0002]

2. Description of the Related Art Conventionally, as this type of food container, there is a food container in which an outer peripheral portion of an opening of a container body and an outer peripheral portion of a lid are press-fitted to each other and fitted.

For example, Japanese Patent Application Laid-Open No. 9-20326 describes a fitting container comprising a container main body 110 and a lid 120 formed of a synthetic resin sheet as shown in FIG.

[0004] The container body 110 of the fitting container has a bottom wall 111, a peripheral wall 112 rising from the peripheral edge thereof, a shoulder 114 provided at an opening peripheral edge 113, and a shoulder 114.
4 is provided with a reversely tapered (inclined in a direction to reduce the diameter) ridges 116 provided on a flange 115 on the outer periphery. on the other hand,
The lid 120 is provided on a flat top wall 121, a shoulder 124 provided on a peripheral edge of the top wall 121 and engaging with a shoulder 114 of the container body 110, and a flange 125 extending from the shoulder 124. It is composed of a concave taper 126 having a reverse tapered shape (inclined in a direction to reduce the diameter). The container main body 110 and the lid 120 serve as fitting containers when the ridges 116 are press-fitted (tightly fitted) into the concave ridges 126.

Japanese Unexamined Patent Publication No. 10-316177 discloses a food for microwave oven formed by using a plastic sheet having good heat resistance as shown in FIGS. A container is described.

The container body 131 of the food container rises from the periphery of the bottom 133 and rises up the peripheral wall 134 to form an opening 135, and rises inside the upper part of the peripheral wall 134 via the step 136a. By forming the fitting wall portion 136b, a fitting portion 136 to which the edge portion 141 of the lid 132 can be fitted is provided.

[0007] The fitting wall portion 136b is formed as an inclined surface which rises from a step portion 136a provided over the entire inner periphery of the peripheral wall 134 so as to rise up to a tapered reverse taper. The lid 132 has an opening diameter slightly smaller than the outer diameter of the edge of the lid 132 and is connected to the flange 137. The lid 132 is fitted over the upper end and fitted into the fitting wall 136b.
Is formed so as to be supported on the step portion 136a.

As described above, all of the above-mentioned conventional fitting containers are fitted to both the container body and the lid at the fitting portion provided in an inversely tapered shape over the entire circumference.

Further, in the above-described food container, when storing contents that generate gas or contents that expand when heated by a microwave oven or the like, the lid is removed at once by an increase in internal pressure, and at the same time, the contents are removed. Various measures have been taken to prevent accidents such as scattering.

For example, in the container shown in FIG.
1 is provided with a groove 127 extending from the peripheral portion to the outer edge of the concave line 126 across the shoulder 124 and the concave line 126, and this groove 127 is a ventilation path for communicating the inside of the container with the outside air. .

In the container shown in FIGS. 17 and 18, the fitting wall 136b has a concave portion 139 opening upward.
The concave portion 139 is closed by the peripheral surface of the lid 132 that is in close contact with the fitting wall 136b and the joint surface 136c in the closed state, and the lid 2 exceeds the joint surface 136c. When it is displaced upward, it forms an air passage communicating with the inside and outside of the container.

[0012]

However, in the above-mentioned conventional fitting container, since it is fitted in both the container body and the lid in a fitting portion provided in a reverse taper shape over the entire circumference, the container is closed. It is difficult to fit the lid into the container body if sufficient performance is secured, and even if the lid is slightly displaced in the lateral direction, a large force is required for fitting and the container or the lid is damaged. There are cases.

[0013] Also, no special response or loud noise is generated when the container and the lid are fitted, and the container and the lid are firmly secured unless they are visually checked or the lid is pulled in the opening direction. It was difficult to confirm whether or not they were fitted.

Further, since the fitting portion between the container and the lid has an inverted tapered shape but is flat, it is assumed to what extent the lid comes off due to an increase in internal pressure when heated in a microwave oven or the like. It is difficult to perform the operation, and even if the ventilation path is secured by the above-described structure, the lid may come off due to a sudden rise in internal pressure. Conversely, if the reverse taper is designed to be tight so that the lid does not come off even when the internal pressure rises at a stretch, it becomes difficult to fit the lid into the container body this time.

SUMMARY OF THE INVENTION In view of the above-mentioned conventional problems, an object of the present invention is to provide a fitting container having a structure that allows easy fitting of a lid to a container, high sealing performance, and allows easy confirmation of a fitted state. To provide.

A further object of the present invention is to provide a fitting container having a structure in which the risk of the lid being detached even when the internal pressure rises at a stretch is extremely small.

It is a further object of the present invention to provide a fitting container having a structure capable of stacking with high stability so that a large number of container bodies and lids can be stored and transported separately.

[0018]

The structure of the present invention to achieve the above object is as follows.

That is, the present invention relates to a fitting container in which the outer peripheral portion of the opening of the container body (10) and the outer peripheral portion of the lid (20) are press-fitted and fitted to each other.
0) has a fitting convex portion (16) inside the opening outer peripheral portion, and extends vertically or reduces the diameter of the container downward at a lower portion of the fitting convex portion (16). The lid (20) has a fitting concave portion (26) fitted to the fitting convex portion (16) of the container body (10) inside the outer peripheral portion. ), And a vertically extending lid-side slide portion (25) below the fitting concave portion (26), and the insertion member is located below the fitting concave portion (26) of the lid body (20). Outside dimension Y of part (27)
Is smaller than the inner dimension (X) of the lid introducing portion (17) located above the fitting projection (16) of the container body (10), and the fitting projection (16) of the container body (10) is ) Is larger than the inner dimension (Z), and further, when the fitting concave portion (26) of the lid (20) is fitted to the fitting convex portion (16) of the container body (10), the container side sliding portion is formed. (15) A structure in which the lid-side slide portion (25) is pressed.

According to the present invention, for example, as shown in FIG. 3, when the lid (20) approaches the container body (10) from above (FIG. 3 (a)), the lid (20) The lid (20) is moved to the container body (10) until the insertion portion (27) of the container abuts on the fitting protrusion (16) of the container body (10) (fitting preparation state shown in FIG. 3B). Can be easily and securely inserted. Then, by applying a force equal to or more than a predetermined pressure from the fitting preparation state, the fitting concave portion of the lid can be fitted to the fitting convex portion of the container body at a stretch (FIG. 3).
(C)) At this time, a snapping sound is generated,
The transition to the completely fitted state can be easily confirmed by sound and touch by hand.

Also, the fitting projection (1) of the container body (10)
When the fitting concave portion (26) of the lid (20) is fitted to 6), the lid-side slide portion (2) is fitted to the container-side slide portion (15).
5) has a structure to be pressed, so that the sealing performance in the fitted state can be improved.

In the fitting container of the present invention, the dimension (E) in the diameter direction between the apex of the fitting projection (16) and the top of the container-side slide portion (15) of the container body (10) is as follows. It is preferable that the lid (20) is configured to be smaller than the diametrical dimension (F) of the bottom of the fitting concave portion (26) and the uppermost portion of the lid-side slide portion (25). Thereby, the sealing performance in the fitted state can be further improved.

The height dimension (G) of the container-side slide portion (15) of the container body (10) is the same as that of the container body (1).
0), it is preferable to be configured to be at least five times the diametrical dimension (E) between the vertex of the fitting convex part (16) and the uppermost part of the container side slide part (15). Thereby, the effect of preventing leakage of contents (particularly, liquid leakage) can be further enhanced.

The container body (10) has a ventilation groove (30) crossing the fitting projection (16) on at least two opposite sides of the outer periphery of the opening of the container body (10). The concave portion (26) has a width enough to accommodate the fitting convex portion (16) of the container body (10), and the container-side slide portion (15) is longer than the lid-side slide portion (25). In a state in which the lid-side slide portion (25) is slid upward without disengagement between the fitting convex portion (16) and the fitting concave portion (26), the container body is inserted through the ventilation groove (30). (10) It is preferable to have a structure in which the inside and outside air communicate. Accordingly, for example, when the internal pressure rises due to steam generated when heated in a microwave oven or the like and the lid is lifted to some extent, the steam can be removed through the ventilation groove while maintaining the fitted state.

Further, the fitting container according to the present invention further has a feature that "the container main body has a shoulder portion extending inward in the horizontal direction from a lower end of the container-side slide portion, and a plurality of the container main bodies are stacked. In this case, the shoulder portion of the upper container body has a structure mounted on the fitting projection of the lower container body. "
That the lid has a shoulder extending inward in the horizontal direction from the lower end of the lid-side slide, and when a plurality of the lids are stacked, the shoulder of the upper lid is the lower lid. Having a structure to be placed on the fitting concave portion of the body, "
A shoulder portion extending inward in the horizontal direction from a lower end of the container-side slide portion, and a stack portion located below the shoulder portion, and when a plurality of the container bodies are stacked, the stack portion of the upper container body Has a structure to be placed on the shoulder of the lower container body "," the lid is a shoulder extending horizontally inward from a lower end of the lid-side slide, and a portion below the shoulder. At the time of stacking a plurality of the lids,
The stack portion of the upper lid has a structure to be placed on the shoulder of the lower lid ".

With such a structure, a large number of container bodies or lids can be stacked with good stability.

[0027]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described with reference to the drawings, but the present invention is not limited to these embodiments.

FIGS. 1A and 1B show a container body of a fitting container according to a first embodiment of the present invention, wherein FIG. 1A is a top view, and FIG.
Is a side view showing a partial cross section taken along line AA in FIG.
(C) is an enlarged view of a portion B in (b). FIG.
1A and 1B show a lid of a fitting container according to a first embodiment of the present invention, wherein FIG. 1A is a top view, and FIG. 1B is a side view showing a partial cross section taken along line AA in FIG. , (C) is B in (b)
It is an enlarged view of a part.

The container main body 10 has a bottom wall 11, a peripheral wall 12 rising from the peripheral edge thereof, a shoulder 14 provided on the outer peripheral portion 13 of the opening, and a tapered shape provided above the shoulder 14 (the container main body has a tapered shape). A container-side slide portion 15 in a state of being inclined in the direction of expanding the diameter, a fitting convex portion 16 located above the slide portion 15, a lid introducing portion 17 for expanding the diameter of the container body,
It comprises a crowned portion 18 including the lid introduction portion 17 and covered by a crown portion of a lid described later.

On the other hand, the lid 20 has a flat top wall 21, a peripheral wall 22 falling from the peripheral edge thereof, a shoulder 24 provided on the outer peripheral portion 23, and a lid-side sliding portion which rises vertically from the shoulder 24. 25, a fitting concave portion 26 located above the slide portion 25, and a crown portion 28 covering the crowned portion 18 of the container body.

The container main body 10 and the lid 20 are fitted by press-fitting the outer peripheral portion 23 of the lid into the outer peripheral portion 13 of the opening of the container main body and fitting the fitting convex portion 16 into the fitting concave portion 26. Is done. This fitting operation will be described with reference to FIG.

In the fitting container of the present invention, FIG.
As shown in the figure, the inner dimension X (the maximum inner diameter of the lid introducing portion 17) of the lid introducing portion 17 located above the fitting convex portion 16 of the container body 10 and the position below the fitting concave portion 26 of the lid body 20. The relationship between the outer dimension Y of the insertion portion 27 (in this example, the lid-side slide portion 25) and the inner dimension Z of the fitting projection 16 of the container body 10 satisfies Z <Y <X.

Therefore, as shown in FIG. 3B, when the lid 20 approaches the container main body 10 from above, the insertion portion 27 of the lid comes into contact with the fitting projection 16 of the container main body. The lid 20 can be easily inserted into the container body 10 until it comes into contact (fitting preparation state).

At this time, as shown in the figure, the intersection of the lid-side slide portion 25 and the shoulder portion 24 of the lid 20 is formed into an R shape, or the lid introduction portion 17 of the container body 10 is formed into a reverse taper by a curved or flat surface. With such a configuration, it is possible to insert the fitting preparation state very easily. The radius of curvature of the R-shaped portion provided at the intersection of the lid-side slide portion 25 and the shoulder portion 24 of the lid 20 is 0.5 mm or more, and
The dimension G in the height direction of the container-side slide portion 15 (FIG. 1C)
It is particularly preferred that the ratio be equal to or less than の of the reference value. When the radius of curvature of the R-shaped portion is less than 0.5 mm, the above-described operation and effect due to the R-shaped portion cannot be sufficiently obtained, and conversely, 寸 法 of the dimension G in the height direction of the container-side slide portion 15 is reduced. If exceeded,
It is difficult to obtain the effect of preventing liquid leakage.

Then, by applying a force equal to or more than a predetermined pressure from the above-described fitting preparation state, as shown in FIG. 3C, the fitting concave portion 26 of the lid 20 is fitted into the fitting convex portion 16 of the container body 10. Can be fitted at a stretch. Further, when such an uneven portion is fitted, a sound such as a snapping sound is generated, and it can be easily confirmed by the sound and the feel of the hand that the state has completely shifted to the fitted state.

Further, in the container body 10 of the present embodiment, the container-side slide portion 15 located below the fitting convex portion 16 is slightly inclined in the direction in which the diameter of the container is increased. Lid-side slide portion 25 located below fitting recess 26
Are formed in the vertical direction. For this reason, in the fitted state as shown in FIG. 3C, the contact pressure between the container-side slide portion 15 and the lid-side slide portion 25 increases as the position decreases,
The sealing performance is high, and the effect of preventing liquid leakage is improved.

The inclination of the above-mentioned container side slide portion 15 varies depending on the height of the slide portion 15. For example, when the slide portion 15 is formed at a height of about 3 to 5 mm,
An inclination angle of about 1 to 2 degrees is sufficient. That is, FIG.
The angle θ in (c) is designed to be approximately 91 to 92 degrees. If the inclination angle is too small, the container side slide portion 1
If it is difficult to obtain a sufficient contact pressure between the cover 5 and the lid-side slide portion 25, and if the contact pressure is too large, the cover cannot be pressed into a predetermined position, and the fitting convex portion 16 and the fitting concave portion 26 Is likely to be insufficiently fitted.

However, when the height of the container-side slide portion 15 is designed to be large enough to obtain the effect of preventing liquid leakage, the container-side slide portion does not necessarily have to have the above-described inclination. Specifically, for example, the dimension G in the height direction of the container-side slide portion 15 is set to 5 times the dimension E in the diameter direction between the vertex of the fitting convex portion 16 and the uppermost portion of the container-side slide portion 15.
If it is designed to be twice or more, it is possible to obtain the effect of preventing liquid leakage even if the container side slide portion 15 is not provided with the above-mentioned inclination.

In the fitting container of the present embodiment, the top of the fitting projection 16 of the container body 10 and the container-side slide portion 15
The dimension E (see FIG. 1 (c)) in the diametric direction with the uppermost part of
The bottom of the fitting concave portion 26 and the lid-side slide portion 25 of the lid 20
Is smaller than the diametrical dimension F (see FIG. 2 (c)) with the uppermost part of. According to such a configuration, the pressing force between the sliding portions of the container body and the lid in the fitted state can be higher than the pressing force between the fitting portions, and the sealing performance in the fitted state can be further improved. Can be.

Generally, in the fitting container according to the present invention, the container body 10 and the lid 20 are separately stacked (stacking).
Then, they are packed in a fixed unit and stored and transported. For this reason, it is preferable that the container body 10 and the lid 20 have a structure that can be stacked with good stability.

The container body 10 of this embodiment has the shoulder portion 14 extending inward in the horizontal direction from the lower end of the container side slide portion 15 as described above, and as shown in FIG. The relationship between the inner dimension X of the lid introducing portion 17 located at the position, the inner dimension Z of the fitting projection 16, and the outer dimension S of the shoulder portion 14 is X
>Z> S. For this reason, when a plurality of container bodies are stacked as shown in FIG.
Is placed on the fitting projection 16 of the lower container body, and the position is defined in the up, down, left, and right directions, so that an extremely stable state is maintained.

Further, as described above, the lid 20 of the present embodiment has the shoulder portion 24 extending inward in the horizontal direction from the lower end of the slide portion 25.
, And as shown in FIG.
The relationship between the inner dimension U at 6 and the outer dimension Y at the shoulder 24 is T>Y> U. For this reason, as shown in the figure, when a plurality of lids are stacked, the shoulder 24 of the upper lid is placed on the fitting recess 26 of the lower lid, and the position is defined in the vertical and horizontal directions. Therefore, it is maintained in an extremely stable state.

As described above, with respect to the structure of the container body 10 (or the lid 20), when a plurality of these are stacked,
By having a structure in which the shoulder of the upper container body (or lid) is placed on the fitting projection (or fitting recess) of the lower container body (or lid), the stacking is performed with high stability. Can be packed.

Next, a description will be given of a second embodiment of the fitting container according to the present invention.

FIGS. 6A and 6B show a fitting container according to a second embodiment of the present invention, wherein FIG. 6A is a side view showing a partial cross section of the lid 20, and FIG. FIG. 4C is a side view illustrating a cross section, and FIG. 5C is a cross-sectional view illustrating a fitted state of the container body and the lid.

The basic structure of the fitting container of the present embodiment is the same as that of the first embodiment except for a portion related to the stacking structure.

The container body 10 of the present embodiment is provided with a stack portion 19 below the shoulder portion 14 extending inward in the horizontal direction from the lower end of the container side slide portion 15, and as shown in FIG. When the main bodies 10 are stacked, the stack portion 19 of the upper container main body is placed on the shoulder 14 of the lower container main body.

The lid 20 of the present embodiment further includes a stack portion 29 provided below a shoulder portion 24 extending inward in the horizontal direction from the lower end of the lid-side slide portion 25. As shown in FIG. When the lids 20 are stacked, the stack 25 of the upper lid is placed on the shoulder 24 of the lower lid.

In the first embodiment described above, the stacking structure using the fitting projection 16 (or the fitting recess 26) of the container body 10 (or the lid 20) is used. Since (or the fitting concave portion) is a very important part in the sealing function of the fitting container, there is a problem if the fitting container is crushed during stacking. On the other hand, in the fitting container of this example, such a problem is avoided by separately providing the above-described stacking portion.

Next, a third embodiment of the fitting container according to the present invention will be described.

FIGS. 9A and 9B show a fitting container according to a third embodiment of the present invention. FIG. 9A is a side view showing a partial cross section of the lid 20, and FIG. 9B is a top view of the fitting container. (C) is a side view showing a partial cross section of the container body 10. FIG.
9A is a cross-sectional view taken along line AA in FIG.
0 (b) is a cross-sectional view taken along line BB in FIG. 9 (b).

The basic structure of the fitting container of this embodiment is the same as that of the first embodiment except that a steam releasing function is added.

The container body 10 of this embodiment has an opening outer peripheral portion 13.
The ventilation groove 30 which crosses the fitting convex part 16 is provided in the two opposing sides. In addition, the fitting concave portion 26 of the lid 20 of the present example has a width (the vertical direction) larger than the width of the fitting convex portion 16 of the container body so that the fitting convex portion 16 of the container body can be accommodated with a margin. (Dimensions of FIG. 1)
0 (a)).

By adopting such a configuration, even if the pressure inside the container rises due to steam generated when heated in a microwave oven or the like, as shown in FIG. The container can be held in contact with the concave portion 16, and the inside of the container body 10 can communicate with the outside air via the ventilation groove 30. Therefore, even if the pressure inside the container increases, the vapor can be released through the ventilation groove while maintaining the fitted state.

Also in this example, when a plurality of container bodies 10 are stacked as shown in FIG. 12, the shoulder 14 of the upper container body is placed on the fitting projection 16 of the lower container body. When a plurality of lids 20 are stacked as shown in FIG.
The shoulder 24 of the upper lid is placed on the fitting recess 26 of the lower lid.

Next, a fourth embodiment of the fitting container according to the present invention will be described.

In the third embodiment, the fitting projection 16
The ventilation groove 30 is formed to be deeper than the height, but in this example, the ventilation function is added by forming the recess 40 by partially lowering the fitting projection 16 as shown in FIG. It is.

That is, as shown in FIG. 14B, especially when the container-side slide portion 15 is inclined, the lower end of the fitting recess 26 abuts on the fitting recess 16.
A slight gap is formed between the container-side slide portion 15 and the lid-side slide portion 25, so that the inside of the container body 10 and the outside air can be communicated via the concave portion 40.

The depth of the concave portion 40 is not particularly limited as long as a ventilation function can be obtained, but is preferably about 1/2 to 3/4 of the height of the fitting convex portion 16. In the case of a rectangular container, it is preferable to provide one or more pairs of the concave portions 40 in the case of a rectangular container so as not to lower the fitting function.

Next, a fifth embodiment of the fitting container according to the present invention will be described.

As shown in FIG. 15, the fitting container of this embodiment
The third embodiment is the same as the third embodiment except that the second fitting projection 50 is formed on the container-side slide portion 15.

The fitting container of this embodiment has a structure in which the lower end of the second fitting projection 50 contacts the lower end of the fitting recess 26 of the lid 20 at the time of sealing, as shown in FIG. As a result, a fitted state with extremely high hermeticity can be obtained.

Further, as shown in FIG.
0 is slightly raised, and the lower end of the fitting recess 26 is
In a state in which the air contacts the lower end of the container 6, the inside of the container body 10 and the outside air can be communicated through the ventilation groove 30 (not shown) as in the third embodiment.

Here, the second fitting projection 50 is formed lower than the fitting projection 16. Thereby, the lid 20 can be promptly shifted from the state shown in FIG. 15A to the state shown in FIG. 15B due to the increase in the internal pressure, and can be reliably held in the state shown in FIG. it can.

[0065]

The fitting container according to the present invention is as described above, and has the following effects. (1) When the lid approaches the container main body from above, the lid is easily and securely attached to the container main body until the insertion portion of the lid abuts on the fitting convex portion of the container main body in a fitting preparation state. It can be inserted, and by fitting the fitting concave portion of the lid with the fitting convex portion of the container body, a fitted state with high sealing performance can be obtained, and further, a sound such as a snapping sound is generated at the time of fitting. Therefore, it can be easily confirmed that the state has shifted to the fitted state. (2) In particular, the dimension E in the diameter direction between the top of the fitting projection 16 and the top of the container-side slide portion 15 of the container body 10 is:
The bottom of the fitting concave portion 26 and the lid-side slide portion 25 of the lid 20
In the configuration configured to be smaller than the diametrical dimension F of the uppermost part, the pressing force between the sliding portions of the container body and the lid in the fitted state can be higher than the pressing force between the fitting portions. In addition, the hermeticity in the fitted state can be further improved. (3) In particular, the dimension G in the height direction of the container-side slide portion 15
Is more than five times the dimension E in the diameter direction between the apex of the fitting convex portion 16 and the uppermost portion of the container-side slide portion 15, an extremely high liquid leakage preventing effect can be obtained. (4) In particular, on at least two opposing sides of the outer periphery of the opening of the container body 10, the ventilation grooves 30
Is provided, the fitting concave portion 26 of the lid 20 has a width capable of accommodating the fitting convex portion 16 of the container body 10 with a margin, and the container side slide portion 15 is longer than the lid side slide portion 25,
It has a structure in which outside air communicates with the inside of the container body 10 through the ventilation groove 30 in a state where the lid-side slide portion 25 slides upward without disengagement between the fitting convex portion 16 and the fitting concave portion 26. In this case, even when the internal pressure rises due to steam or the like generated when heated by a microwave oven or the like, the lid body does not easily come off, and is kept in the fitted state through the ventilation groove 30 while maintaining the fitted state. Can drain steam. (5) Regarding the structure of the container main body (or lid), when a plurality of these are stacked, the shoulder of the upper container main body (or lid) has a lower container main body (or lid).
By having a structure that is placed on the fitting projection (or fitting recess), it is possible to stack and pack with good stability. (6) In particular, when a stacking portion is separately provided, there is no fear that the fitting projection (or the fitting recess) is crushed or damaged during stacking, and the sealing function portion of the fitting container is protected. Is effective in

[Brief description of the drawings]

FIG. 1 is a view showing a container body of a fitting container according to a first embodiment of the present invention.

FIG. 2 is a view showing a lid of the fitting container according to the first embodiment of the present invention.

FIG. 3 is a cross-sectional view for explaining a fitting operation of the fitting container according to the first embodiment of the present invention.

FIG. 4 is a schematic cross-sectional view for explaining a stacking structure of the container main body of the fitting container according to the first embodiment of the present invention.

FIG. 5 is a schematic cross-sectional view for explaining a stacking structure of a lid of the fitting container according to the first embodiment of the present invention.

FIG. 6 is a view showing a fitting container having a stack portion according to a second embodiment of the present invention.

FIG. 7 is a schematic cross-sectional view illustrating a stacking structure of a container main body of a fitting container according to a second embodiment of the present invention.

FIG. 8 is a schematic cross-sectional view for explaining a stacking structure of a lid of a fitting container according to a second embodiment of the present invention.

FIG. 9 is a view showing a fitting container having a ventilation groove according to a third embodiment of the present invention.

FIG. 10 is a sectional view showing a fitted state of a fitted container according to a third embodiment of the present invention.

FIG. 11 is a cross-sectional view showing a state in which a fitting container communicates with outside air according to a third embodiment of the present invention.

FIG. 12 is a schematic cross-sectional view illustrating a stacking structure of a container main body of a fitting container according to a third embodiment of the present invention.

FIG. 13 is a schematic sectional view for explaining a stacking structure of a lid of a fitting container according to a third embodiment of the present invention.

FIG. 14 is a sectional view showing a fitting portion of a fitting container according to a fourth embodiment of the present invention.

FIG. 15 is a sectional view showing a fitting portion of a fitting container according to a fifth embodiment of the present invention.

FIG. 16 is a cross-sectional view illustrating a fitted state of a conventional fitted container.

FIG. 17 is a perspective view showing another conventional fitting container.

FIG. 18 is a cross-sectional view showing a fitted body of the fitted container of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Container main body 11 Bottom wall 12 Perimeter wall 13 Opening outer peripheral part 14 Shoulder part 15 Container side sliding part 16 Fitting convex part 17 Lid introduction part 18 Crowned part 19 Container side stack part 20 Lid 21 Top wall 22 Peripheral wall 23 Peripheral part 24 Shoulder part 25 Cover side slide part 26 Fitting concave part 27 Insertion part 28 Crown part 29 29 Cover side stack part 30 Vent groove 40 Depressed part provided in fitting convex part 16 50 Second fitting convex part

Continued on the front page F term (reference) 3E006 AA01 BA02 CA01 DA01 3E084 AA05 AA24 BA01 CA03 CC03 DA03 DB13 DC03 EA10 EB03 EC03 FA09 FC07 GA08 GB12 HA03 HB01 HC03 HD04

Claims (8)

[Claims] 1. A fitting container wherein an outer peripheral portion of an opening of a container main body and an outer peripheral portion of a lid body are press-fitted and fitted to each other, wherein the container main body has a fitting convex portion inside the outer peripheral portion of the opening. In addition, a lower portion of the fitting convex portion has a container-side slide portion extending in the vertical direction or slightly inclined in a direction of reducing the diameter of the container downward, and the lid body has an outer peripheral portion. An inner side has a fitting concave portion fitted to the fitting convex portion of the container body, and a lower side of the fitting concave portion has a lid-side slide portion extending in a vertical direction, below the fitting concave portion of the lid body. The outer dimensions of the insertion part located at
Smaller than the inner size of the lid introducing portion located above the fitting protrusion of the container body, and larger than the inner size of the fitting protrusion of the container body; and furthermore, the fitting protrusion of the container body. A fitting container having a structure in which the lid-side slide portion is pressed against the container-side slide portion when the fitting concave portion of the lid is fitted to the container. 2. A diametrical dimension between a top of the fitting projection and an uppermost portion of the container-side slide portion of the container body,
2. The fitting container according to claim 1, wherein the lid is configured to be smaller than a diametrical dimension of a bottom portion of the fitting recess and an uppermost portion of the lid-side slide portion. 3. 3. A dimension of the container body in a height direction of the container-side slide portion is a diameter dimension of a vertex of the fitting protrusion and an uppermost portion of the container-side slide portion of the container body. The fitting container according to claim 1, wherein the fitting container is configured to be five times or more of the following. 4. A ventilation groove crossing the fitting projection on at least two opposite sides of the outer periphery of the opening of the container body, and the fitting recess of the lid body has a fitting projection of the container body. The container-side slide portion is longer than the lid-side slide portion, and the fitting between the fitting convex portion and the fitting concave portion is not released. The fitting container according to any one of claims 1 to 3, wherein the fitting container has a structure in which the inside of the container body and outside air communicate with each other through the ventilation groove when the lid-side slide portion slides upward. 5. The container body has a shoulder extending horizontally inward from a lower end of the container-side slide portion, and when a plurality of container bodies are stacked, the shoulder of the upper container body is lower. The fitting container according to any one of claims 1 to 4, wherein the fitting container has a structure mounted on the fitting protrusion of the container body. 6. The lid has a shoulder extending inward in the horizontal direction from a lower end of the lid-side slide, and when a plurality of the lids are stacked, the shoulder of the upper lid is lower. The fitting container according to any one of claims 1 to 4, wherein the fitting container has a structure mounted on the fitting concave portion of the lid body. 7. The container body has a shoulder extending inward in the horizontal direction from a lower end of the container-side slide portion, and a stack portion located below the shoulder, and a plurality of the container bodies are stacked. The fitting container according to any one of claims 1 to 4, further comprising a structure in which the stack portion of the upper container body is placed on the shoulder of the lower container body. 8. The lid has a shoulder extending inward in the horizontal direction from a lower end of the lid-side slide, and a stack located below the shoulder, and a plurality of the lids are stacked. The fitting container according to any one of claims 1 to 4, further comprising a structure in which the stack portion of the upper lid is placed on the shoulder of the lower lid.