JPH10278953A - Container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sealable container which is more hermetic. SOLUTION: A container has a container main body 11 having a flange on its periphery at its upper edges, and a lid 12 which is used for a container main body 11, is made of flexible resin, and has a raised part which contacts the upper edges of the container main body 11 and also has a flange, on the periphery of the raised part, which engages with the flange of the container main body 11. Locking projections 13a and 13b are provided all the way round the flange 13 of the container main body. Also, engagement part 14a, which engages with the locking projections, is provided all the way round the flange 14 of the lid. By engaging the engagement part of the flange of the lid and the locking projections of the flange of the main body, the main body and the lid are brought into firm contact with each other with forces exerted vertically.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a container, and more particularly to a container which can be suitably used for a sealed container used for preserving food.

[0002]

2. Description of the Related Art FIG. 17 is a view showing an example of the structure of a conventional sealed container. FIG. 17 (a) shows the structure of the entire sealed container, and FIG. It is sectional drawing which shows the structure of an engagement part. The sealed container is made of a resin such as polyethylene or polypropylene. FIG.
As shown in (b), the upper end portion 31a of the container body 31 is formed to be thick, and this portion protrudes outward. On the other hand, the lid 32 has an engaging portion 32a provided so as to cover the upper end portion 31a, and the tip of the engaging portion 32a protrudes inward. Upper end 31a of container body 31
By applying a force in the vertical direction by aligning the position of the lid 32 with the engaging portion 32a of the lid 32, the protruding portion of the upper end 32a of the lid 32 slides along the protruding portion of the upper end 31a of the container body 31. The upper end 31a of the main body 31 is inserted into the engaging portion 32a of the lid 32 to seal the container. In such a conventional container, the container body 31
When the cover 32 is engaged with the main body 3
1 is tightened toward the center. That is, the lid 32 acts as a so-called “haga”, the tip 31 a of the main body 31 is drawn toward the center, and the inner surface of the engaging portion 32 a of the lid 32 is moved to the upper end 31 a of the main body 31.
To seal the container. When removing the lid 32, first, a part of the contact portion between the lid 32 and the main body 31 is forcibly separated, and the lid 32 is gradually separated from the part along the outer periphery of the container to be removed. Have been.

[0003]

In such a conventional sealing container, the engaging portion 32a of the lid 32 and the upper end 31a of the main body 31 are separated from each other by a force acting toward the center (31a, 32a). ) Is tightly sealed. Therefore,
Since the locking force acts in the lateral direction or the oblique direction, there is a problem in that the degree of sealing of the container is low, the liquid leaks when storing the liquid, and the storage period of the food or the like is shortened.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems, to provide a sealed container having a high degree of sealing and a long storage period.

[0005]

In order to solve the above-mentioned problems, a container according to the present invention comprises a container body provided with a flange on the outer periphery of an upper end, a lid used for the container body, and a flexible container. A lid having an outer edge portion made of a resin having contact with an upper end of the container main body and having an engaging portion which engages with a flange portion of the container main body near the outer edge portion, the flange portion of the container main body or the A plurality of locking projections formed at predetermined intervals over the entire circumference or one locking projection formed over the entire circumference are provided on one of the flange portions provided on the lid, and the locking projections are provided. When the locking projection is provided on the main body side, an engaging portion that vertically engages with the locking projection is provided on the flange on the main body side when the locking projection is provided on the lid side. It is characterized by having.

With this configuration, the flange provided on the outer periphery of the container body and the flange provided on the outer periphery of the lid can be locked in the vertical direction. That is, when the container is sealed, the upper end surface of the container body and the lower end surface of the step portion of the lid that comes into contact with the upper end surface are in direct contact with each other by the force in the vertical direction, so that the lid is less likely to come off.
The degree of sealing of the container can be increased.

Further, in the sealed container according to the present invention, at least a portion near the outer periphery of the container has a portion where the degree of locking of the locking projection provided on the container body side or the lid side is weaker than that of other portions. Is provided. With such a configuration, the lid can be easily removed from the container main body such that the portion where the degree of engagement is weak is first separated from the container main body, and then the other portions are separated from the container main body.

Further, the degree of locking of the locking projection provided on the container body side or the lid side is smallest at a certain portion, and the degree of locking gradually decreases as the distance from the locking projection with the smallest degree of locking increases. It is preferable to configure so as to be strong.

[0009] If a portion having a low degree of locking is formed at the corner of the container, the lid can be more easily removed.

Various forms are conceivable for the sealed container of the present invention. For example, a flange portion provided on an outer periphery of an upper end of the container body has a U-shaped cross section, and a first locking projection protruding outward is provided at a lower end of an inner portion of the flange. A second locking protrusion protruding inward is provided at a position corresponding to the first locking protrusion on the upper end of the wall, and the engaging portion at the lower end of the flange provided on the outer periphery of the step of the lid is connected to the first locking protrusion. And between the second locking projection and the second locking projection to seal the container.

In such a configuration, the lower end of the engaging portion of the flange provided on the outer periphery of the lid is U-shaped by applying a vertical force to the outer periphery of the lid and the container body together. Between the first locking projection provided at the inner lower end of the flange portion and the second locking projection provided at the outer upper end toward the inside, and the projection provided outward at the lower end of the flange on the lid side. And the lower surface of the locking projection provided inward on the outer upper end of the body-side flange portion, and the lid can be locked to the container body. Due to this meshing, the lid and the main body rebound in the vertical direction, and the container is sealed in a state where the upper edge of the main body and the inner surface of the step portion of the lid are forcibly brought into close contact with each other by the repulsive force. Since the locking projections are provided at predetermined intervals on the outer periphery of the container, the lid can be locked substantially uniformly over the entire circumference of the container. Note that one or both of the first and second locking projections may be formed continuously without an interval.

[0012] Further, a locking projection protruding inward is provided at the lower end of the outer wall of the flange portion provided near the outer edge portion of the lid, and the front end portion of the flange portion provided on the outer periphery of the upper end of the container main body is directed downward. The distal end may be locked to the locking protrusion on the lid to seal the container.

Also in this case, by aligning the position of the container body and the lid and applying a vertical force to the outer peripheral portion, the distal end of the flange provided on the lid side and the distal end project obliquely downward. The lower end of the main body side flange portion meshes with the main body side flange so that the lid and the main body can be locked substantially uniformly over the entire circumference. Again, the upper surface of the protrusion provided inward at the lower end of the lid side flange portion and the lower surface of the outer end portion of the flange portion provided on the container main body rebound in the vertical direction in a state in which they mesh with each other,
By this repulsive force, the container can be sealed in a state where the upper end edge of the main body and the inner surface of the step portion of the lid are forcibly brought into close contact with each other.

Further, according to another aspect of the present invention, an elongated hole extending along the outer periphery of the main body and having one long side formed in a concave shape is formed on a flange portion provided horizontally on the outer periphery of the upper end of the container main body. A plurality of L-shaped cross sections engageable with the long holes are provided at predetermined positions at positions corresponding to the long holes on the lower surface of the flange provided horizontally near the outer edge of the lid. A locking projection is provided, and when the locking projection is engaged with the elongated hole provided on the main body side, the length of the portion locked with the elongated hole in the direction orthogonal to the outer periphery of the container is the elongated hole. The distance from the center of the dent becomes gradually shorter.

[0015] In this configuration, by aligning the position of the container body and the lid and applying a vertical force to the outer peripheral portion, the locking projection on the lid fits into the long hole on the container side, and the container side has a lid. The lower side of the long side of the side where the recess of the long hole of the lid receiving portion is provided,
The upper surface of the tip projection of the locking projection on the lid meshes with the upper surface of the locking projection, and the repelling force generated at these locking parts forces the upper end of the container main body and the inside of the step of the lid into close contact, sealing the container. can do. In this example, furthermore, when the locking projection on the lid side is engaged with the elongated hole, the length of the locking portion with the elongated hole in the direction perpendicular to the outer periphery of the container is from the center of the recess of the elongated hole. When the lid is removed from the container body, the length of the lid is gradually reduced as it goes away, that is, the locking portion between the elongated hole and the locking projection is configured to gradually decrease as going outward from the center of the elongated hole. The lid can be easily unlocked from the main body. If any one of the locks is released, the other locks can be easily released.

[0016]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing the configuration of the entire container according to the first embodiment of the container of the present invention.
Is a cross-sectional view showing a configuration of a locking portion between the container main body and the lid, and FIGS. 3 and 4 are perspective views showing a configuration of a part of a lid receiving portion of the container main body.

The rectangular container 1 has a container body 11 and a lid 12 for sealing the container body. The materials of these members include
Resins such as polyethylene and polypropylene are preferably used. The upper end 11a of the container body 11 is slightly rounded as shown in FIG. 2, and an outer periphery thereof is provided with a flange 13 having an L-shaped cross section. At the upper end of the outer edge of the flange 13, as shown in FIG. 3, a plurality of elliptical protrusions 13 a protruding inward are provided at predetermined intervals over the entire circumference. As shown in FIG. 4, a semi-arch shaped protruding portion 13b is formed on a portion defined by the outer wall of the container body 11 and the inner lower surface of the flange 13 at a position facing the protruding portion 13a. A plurality are provided at predetermined intervals.
Note that a space is provided between the protruding portions 13a and 13b to such an extent that a locking portion on the lid side described later can be interposed.

On the other hand, as shown in FIG. 2, a step portion 12a having a reduced thickness is provided on the cover 12 over the entire circumference thereof, and extends downward from the tip of the step portion 12a. An engaging portion 14 is provided. At the lower end of the locking portion 14, a protruding portion 14a is formed outward, and this portion engages with the flange portion 13 on the main body side. In FIG. 2,
A state where the locking of the lid 12 is released is shown by a broken line, and a state where the lid 12 is locked is shown by a solid line.

The container body 11 and the lid 12 thus configured are
When a force is applied in the vertical direction with the position of the main body 11 being adjusted, the locking portion 14 provided on the lid 12 is deformed due to the flexibility of the resin, as shown by the solid line in FIG. Projection 13
Fits between a and 13b. Here, the upper surface of the protruding portion 14a protruding outward from the tip of the locking portion 14 meshes with the elliptical protruding portion 13a provided on the main body 11, and the semi-arch type protruding portion 13b on the main body 11 side is formed. The lid 12 is pressed against the lower end of the protrusion 14 a on the lid side, and the lid 12 is locked to the container body 11. Since the step portion 12a on the lid 12 side is formed to be thinner than the other portions, the step portion 12a is deformed so as to bend downward as shown in FIG. 2 and comes into close contact with the upper end 11a of the container body 1.
The step 12a of the lid is pulled downward by the engagement of the projection 14a on the lid side and the projections 13a, 13b on the container side, so that the lid 12 and the main body 11 are separated by the repulsive force generated in each member. It can be strongly adhered.

To release the lock between the main body 11 and the lid 12, one of the locks is forcibly released, and the other part is locked by pulling the lid upward. Can be solved sequentially. In this case, for example, the size of one protruding portion 13a on the main body 11 side is made smaller than the other protruding portions 13a, and the space between the protruding portions 13a and 13b is made a little larger. If the locking force with the lid 12 is weakened, the locking of the weak portion is released first, and the locking of the other portions is sequentially released, so that the lid can be easily removed. 12 can be separated from the main body 11.

The portion where the locking force is weak is not limited to one location, but may be provided at a plurality of locations. in this case,
If the portions having a weak locking force are provided at, for example, opposing corners, handling becomes easier. Further, one of the protruding portions 13a on the main body 11 side has the smallest protruding amount, the locking force at that location is the weakest, and the protruding amount of the protruding portion 13a at the locking location adjacent to that location is Gradually increase as you move away from the place where the locking force is weakest,
You may comprise so that a locking force may become strong gradually as it separates from the location where the said locking force is the weakest.

In the above-described example, the amount of protrusion of the protrusion 13a on the main body 11 side is changed.
The protrusion amount of the protrusion 14a at the tip of the locking portion 14 on the second side may be changed. That is, the same effect can be obtained even if the amount of protrusion of the protruding portion 14a is minimized at a certain point (for example, a corner) and the amount of protrusion gradually increases as the distance from the point increases.

Here, if the portions having weak locking force are provided at the opposite corners or all the corners of the container, the lid can be more easily removed. The container body 1
In addition to the protrusions 13a and 13b on one side, a plurality of protrusions 14a of the locking portion 14 on the lid side may be provided at predetermined intervals over the entire circumference of the container.

FIG. 5 is a perspective view showing the configuration of a container body of a modified example of the first embodiment of the sealed container of the present invention. FIG. 6 is a cross-sectional view showing the locked state between the container body and the lid. FIG. 7 is a perspective view of the configuration of the edge of the flange portion of the container body viewed from the inside, and FIG. 8 is a perspective view showing the configuration of a protruding portion provided inside the flange portion of the container body. In the modified examples and embodiments described below, the same components as those in the first embodiment shown in FIG. 1 are denoted by the same reference numerals, and description thereof will be omitted.

In this embodiment, a projecting portion 13c projecting inward is provided at the upper end of the outer edge of the flange 13 provided on the outer periphery of the upper end of the container body 11 over the entire outer periphery of the container. The configuration is the same as that of the first embodiment. With a simpler configuration than the first embodiment,
Almost the same effects can be obtained. As in the first embodiment, if a part of the locking force is weakened, the lid can be easily removed from the container.

FIG. 9 is a perspective view showing the whole structure of a container according to a second embodiment of the sealed container of the present invention. FIG. 10 is a sectional view showing a state in which the container body and the lid are locked. FIG. 5 is a sectional perspective view showing a configuration of a locking portion of a lid. The upper end of the container body 11 is rounded similarly to the first embodiment, and a flange portion 15 is provided around the upper end thereof as shown in FIG. It forms a U-shaped cross section.

On the other hand, on the lid 12 side, a stepped portion 12a having a reduced thickness is provided as in the first embodiment, and a locking portion 16 extending downward is provided at the tip thereof. I have. As shown in FIG. 11, a plurality of elliptical protrusions 16a projecting inward are formed at the tip of the locking portion 16 at predetermined intervals over the entire outer periphery of the container.

As shown in FIG. 10, in this embodiment, the position of the container main body 11 and the lid 12 is adjusted and a vertical force is applied so that the flange 15 provided at the upper end of the container main body 11 is moved. The main body 11 and the lid 12 are configured to be fitted into a space defined by a step portion 12 a of the lid 12 and the locking portion 16 to lock the main body 11 and the lid 12. Also in this case, the stepped portion 12a of the lid 12 is pulled downward by the vertical locking force between the lower end of the flange portion 15 and the protruding portion 16a of the lower end of the locking portion 16 on the lid side. Since the step 11a and the step 12a of the lid 12 are brought into close contact with each other with a vertical force, a high degree of sealing can be obtained.

As in the first embodiment, the size of one of the protrusions 16a of the locking portion 16 of the lid 12 is made smaller than the size of the other protrusions, or a plurality of adjacent protrusions 16a are formed. The size of one of the centers of the fitting protrusions 16a can be minimized, and the size of the protrusion, that is, the protrusion amount can be gradually increased as the distance from the protrusion increases.

FIG. 12 is a perspective sectional view showing a modification of the second embodiment shown in FIG. In this modification, the lid 12
A projection 16b is formed at the lower end of the locking portion 16 provided on the outer periphery of the bracket, over the entire circumference of the locking portion. Almost the same effects can be obtained with a simpler configuration. Also in this case, if the amount of protrusion of a part of the protrusion 16b is made smaller than that of the other part and the locking force of the part is weakened, the operation of separating the lid 12 from the container 11 becomes easier.

FIG. 13 is a view showing the entire configuration of a container according to a third embodiment of the sealed container of the present invention, FIG. 14 is a side view showing the entire configuration of the container, and FIG. FIG. 16 is a cross-sectional view showing the locked state, and FIG. 16 is a view of the locked state of the container body and the lid as viewed from below (the direction indicated by arrow A in FIG. 15).

As shown in FIG. 5A, in the present embodiment, flanges (17, 18) are provided on the outer periphery of the container body 11 and the outer periphery of the lid 12, respectively. , A slot 19 extending along its outer periphery
Are formed at predetermined intervals. The long side outside the long hole 19 is concave toward the outer wall side of the container body.

On the other hand, on the lid 12 side, a flange 18 is provided outside the stepped portion 12, and a long protruding portion 20 having an L-shaped cross section is formed on the lower surface of the flange portion.
Is provided at a position corresponding to. The long protruding portion 20 has a long side on both sides projecting outward from the outer wall of the container. At the center of the long side inside the long protruding portion 20, a minute protrusion 20 protruding toward the outer wall side of the container body is provided.
a is formed.

As shown in FIGS. 13 and 14, the projecting portion 20 has an L-shaped cross section and is configured to be able to engage with an elongated hole 19 provided in the main body side flange 18. When the projecting portion 20 is fitted into the elongated hole 19 by applying a vertical force while aligning the position of the container body 11 and the lid 12, the concave portion 19 a of the elongated hole 19 is formed.
And the convex portion 20b of the protruding portion 20 mesh with the main body 11
And the lid 12 are locked to each other. In addition, the minute protrusion 20a
Is pressed against the other side 19b of the elongated hole 19a. Slot 1
9 and the protruding long side 20b of the projection 20.
Are curved in directions opposite to each other, as shown in FIG. The locking width of both locking portions in the direction perpendicular to the outer wall of the container is the longest at the center of the long hole 19,
It becomes shorter as it goes to both ends of the long hole 19. In other words, the amount of engagement between the elongated hole 19 and the elongated projection 20 decreases as the distance from the center of the elongated hole 19 in the longitudinal direction decreases.
Therefore, in this embodiment, the long hole 19 and the projection 2
The locking of 0 and the releasing operation thereof can be performed very easily. In this example, as in the first and second embodiments described above, the upper end portion 11a of the container body and the step portion 12a of the lid 12 are in close contact with each other by the locking force applied in the vertical direction. Is obtained.

[0035]

As described above, in the container according to the present invention, since the main body and the lid of the container are locked by the force acting in the vertical direction, a container with a high degree of sealing can be realized. In addition, by providing a part where the degree of engagement between the lid and the container is weak, the lid can be easily removed.

[Brief description of the drawings]

FIG. 1 is a diagram showing a configuration of a first exemplary embodiment of the present invention.

FIG. 2 is a cross-sectional view showing a locked state between a main body and a lid of the container shown in FIG.

FIG. 3 is a perspective view showing a configuration of a part of the container shown in FIG.

FIG. 4 is a perspective view showing a configuration of a part of the container shown in FIG.

FIG. 5 is a diagram showing a configuration of a modified example of the container shown in FIG.

FIG. 6 is a cross-sectional view showing a state where the main body and the lid of the container shown in FIG. 5 are locked.

FIG. 7 is a perspective view showing a configuration of a part of the container shown in FIG.

FIG. 8 is a perspective view showing a configuration of a part of the container shown in FIG.

FIG. 9 is a diagram showing a configuration of a second exemplary embodiment of the present invention.

FIG. 10 is a cross-sectional view showing a state where the main body and the lid of the container shown in FIG. 9 are locked.

FIG. 11 is a perspective view showing a configuration of a part of the container shown in FIG. 9;

FIG. 12 is a perspective view showing a configuration of a modified example of the container shown in FIG. 9;

FIG. 13 is a diagram illustrating a configuration of a third exemplary embodiment of the present invention.

FIG. 14 is a side view showing the overall configuration of the container shown in FIG.

FIG. 15 is a sectional view showing a configuration of a part of the container shown in FIG. 13;

FIG. 16 is a view showing a part of the container shown in FIG. 13;

FIG. 17 is a cross-sectional view showing a configuration of a conventional sealed container.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Seal container 11 Container main body 12 Lid 13, 17 Main body side flange part 14, 18 Lid side flange part 13a, 13b Main body side locking projection 14a, 16a Lid side engaging part 19 Long hole 20 Long projection

Claims (8)

[Claims] 1. A container body provided with a flange on the outer periphery of an upper end portion, an outer edge portion which is a lid used for the container body and is made of a flexible resin, and which comes into contact with an upper end of the container body, and the outer edge A lid provided in the vicinity of the container and having an engaging portion that engages with the flange of the container main body, wherein one of the flange of the container main body and the flange provided on the lid is provided over the entire circumference. A plurality of locking projections formed at intervals of one or one locking projection formed over the entire circumference is provided, and when the locking projection is provided on the main body side, on the flange portion on the lid side, A container characterized in that when a locking projection is provided on the lid side, an engaging portion is provided on the flange on the main body side to engage with the locking projection in the vertical direction. 2. The method according to claim 1, wherein at least a part of the container in the vicinity of the outer periphery thereof includes:
The container according to claim 1, wherein a portion in which the degree of locking of the locking projection provided on the container body side or the lid side is weaker than that of the other portion is provided. 3. The locking projection according to claim 2, wherein the locking projection provided on the container body side or the lid side has a minimum locking level at a certain level, and the locking level has the lowest locking level. A container characterized in that the degree of locking gradually increases as the distance from the container increases. 4. The container according to claim 2, wherein the portion where the degree of engagement is weak is formed at a corner of the container. 5. A flange portion provided on an outer periphery of an upper end of the container body has a U-shaped cross section, and a first locking protrusion protruding outward is provided at an inner lower end of the flange, and the flange is provided. A second locking protrusion protruding inward at a position corresponding to the first locking protrusion at an upper end of an outer wall of the cover, and an engaging portion at a lower end of a flange provided on an outer periphery of a step portion of the lid; The container according to any one of claims 1 to 4, wherein the container is sealed between the first and second locking projections. 6. A flange provided on an outer periphery of an upper end of the container body has a U-shaped cross section, and a first locking projection protruding outward is provided at an inner lower end of the flange, and the flange is provided. A second locking projection protruding inwardly is provided at the upper end of the outer wall of the cover over the entire circumference, and the engaging portion at the lower end of the flange provided on the outer periphery of the step portion of the lid is provided with the first and second locking. The container according to any one of claims 1 to 4, wherein the container is sealed between the projections. 7. A locking projection protruding inward is provided at a lower end of an outer wall of a flange provided near an outer edge of the lid, and a front end of the flange provided on an outer periphery of an upper end of the container body has a lower end. The container according to any one of claims 1 to 4, wherein the container protrudes toward the container, and the distal end of the container is locked with the locking protrusion on the lid side to seal the container. 8. A plurality of elongated holes, which extend along the outer periphery of the main body and have one long side formed in a concave shape, at a predetermined interval, in a flange portion provided horizontally on the outer periphery of the upper end of the container main body. At the same time, a locking projection having an L-shaped cross section capable of engaging with the long hole is provided at a position corresponding to the long hole on the lower surface of the flange portion provided horizontally near the outer edge of the lid. When the stop projection is engaged with the elongated hole provided on the main body side, the length in the direction orthogonal to the outer periphery of the container of the locking portion with the elongated hole gradually increases as the distance from the center of the recess of the elongated hole increases. The container according to any one of claims 1 to 4, wherein the container is configured to be shorter.