JPH11321904A - Sealing structure between container body and lid and the container body and the lid therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a container body and a lid wherein they are resistant against shock to keep a sealed state before being unsealed, and attachment/removal of the lid to and from the container body can be easily done while sealing function is kept even after being unsealed. SOLUTION: The lid 12 is formed with annular rims 54, 56, 58, 64, an annular protrusion 50 and an annular protrusion 45, while the container body 10 is formed with annular flanges 28, 32, 34, 36, an annular recess 26 and a step 24 corresponding thereto. The rims 54, 56 are formed in an obtuse angle while the rims 58, 64 are formed in an acute angle. The container body 10 is further equipped with a skirt 38 for absorbing shock. Before being unsealed when a temper seal 62 has not been cut along an annular groove 60, counterclockwise rotation of an outer leg 52 based on engagement between the annular rim and the annular flange causes the annular protrusion 50 to enter the annular recess 26 forcibly, whereby the lid 12 and the container body 10 are sealed and the annular protrusion 45 comes into strong pressure contact with the step 24. After being unsealed, a sealed state based on engagement between the annular rims 45, 56 and the annular flanges 28, 32 is kept, thereby facilitating attachment/removal of the lid 12 to/from the container body 10.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a container body and lid sealing structure for hermetically sealing a container body and a lid while integrally holding the container body and the lid, and a container body and a lid therefor. Due to the so-called deformation action of the lid and the pressing from the flat part of the lid when the holding part and the held part of the container body are integrated, the degree of sealing between the seal part of the lid and the sealed part of the container body is strengthened. Things.

In order to prevent the impact received during dropping or transportation from being transmitted to the storage portion of the contents as it is, a predetermined space can be formed in a mounting portion between the lid and the container body, And a skirt portion provided on the outer peripheral surface of the.

[0003] Further, the manner of holding the lid and the container body is composed of a first portion that allows the user to easily remove the lid, and a second portion that is not easily removed by an impact during transportation or the like. When the container is used, the lid portion corresponding to the second portion can be separated from the lid body.

[0004]

2. Description of the Related Art Many wide-mouthed containers are sold to the general consumer, wholesale trade, or retail trade. They are used in the fields of foods, beverages, paints, chemicals, lubricants, greases, industrial and household detergents, and other solids, powders and the like. These container bodies are provided with lids for closing the openings.

[0005] A temper seal is provided on the sealed portion between the container body and the lid before opening. When using for the first time, remove the temper seal, open the lid and take out the contents. When the contents are not completely used up, reattach the lid to the container body and save.

[0006] From the time the lid is attached to the container body to the time the contents are used up, the container body needs to have the following functions. 1. 1. Containers with lids pass the internal pressure and hydrostatic pressure requirements of the UN Recommendations on Dangerous Goods Class 3 Dangerous Goods Containers. 2. After opening and removing the temper seal, the lid is attached to the container body again so that the contents in the container do not deteriorate. Even after opening the temper seal, the container body and the lid must be sealed at high temperature (40 ° C) or low temperature (-20 ° C) to prevent leakage.

[0007] In order to meet the above-mentioned standards, a silicone rubber is conventionally used so that the sealing effect between the assembled container main body and the lid is most efficiently exhibited in consideration of the load applied to the lid and the like. An O-ring is used.

US Pat. No. 5,460,287; 5,163,576; 4,53 discloses a wide-mouthed container body and a corresponding lid having a sealing effect with a temper seal.
8,741; 3,107,838; 3,811,59
7; 4,034,889; 4,919,286; 5,0
92,478; 5,143,219; 5,292,02
4, 5,143,235; 3,532,244.

The assembled container body and lid are
The shape of the lid and the flange of the container for engaging with the lid were not structurally flexible and did not bend. Further, the conventional structure of the container body and the lid is for holding the lid to the container body, and makes it difficult for the lid to be easily detached from the container body.

[0010] In countries where industrialization is slow, the conditions of use are severe, and the climate and handling conditions vary. For example, the following states are typical. 1. Long-term storage at temperatures above 50 ° C. 2. Harsh transport conditions caused by poorly maintained roads and vehicles. 3. Rough container handling that occurs because container handling is not fully automated. 4. Exposing 6 to 9 stacked containers to direct sunlight for an extended period of time. High consumer demand for room temperature drop test results

[0011] Markets in countries where industrialization is slow or in tropical climates have the following requirements. 1. Loading requirements: Six to nine containers containing the covered contents are stacked and left under direct sunlight for 90 days under various weather conditions. Loading tests (in this way) are not specified in UN recommendations or other international standards. 2. Drop test requirements: Drop test Requirements in industrialized and non-UN recommended countries Group II i) Horizontal to bottom edge 2.5m 1.2m ii) Horizontal to side 2.0m 1.2m iii) 2. 1.5m 1.2m iv) 45 ° to the bottom green 1.5m 1.2m v) 45 ° to the edge of the lid v) Horizontal 1.5m to the lid Not specified Diagonal rolling requirements: Stack three to four containers with the contents and roll this cylindrical one to check that the lid does not disengage from the container or that the bottom edge of the container is not deformed. Rolling is not specified in UN Recommendations. 4. Overturning test of loaded containers: Six containers containing the contents are stacked in a cylindrical shape, and physically pressed to check for damage to the containers and leakage of the contents. This test is not specified in a UN Recommendation. 5. Leak test i) Check if there is any air leakage when an internal pressure of 30 kpa is applied. ii) Confirm that there is no water leakage when a hydrostatic pressure of 100 kpa is applied for 30 minutes.

When the synthetic resin container body and lid are assembled, it is necessary to prevent leakage without using a sealing gasket inside. Also, the assembled container body and lid must be sealed to prevent leakage even over a wide range of temperature changes and rough handling.

Further, the assembled container body and lid satisfying the above criteria must be easy to handle and capable of repeatedly opening and closing the lid without impairing the function of preventing leakage.

[0014] The assembled container body and lid must be able to withstand side and vertical impacts at high and low temperatures. In addition, the container body and lid must be made of lightweight, commercially reasonable plastic resin at reasonable cost, and must be easy for the user to use and can be easily opened and closed. No.

[0015]

The use of a silicone rubber O-ring to seal the container body and the lid not only increases the cost of the container, but also in many cases,
There has been a problem that desired results have not been obtained with respect to the air leakage and the pressure resistance effect. Further, it is difficult to separate the O-ring made of silicone rubber from the thermoplastic material or the metal fastener portion, which makes it difficult to reuse the container and the lid.

Further, when the container containing the liquid or the powder falls in a 45 ° inclined state or in the longitudinal direction of the container, the impact between the container and the container releases the engagement between the container body and the lid, and the lid is closed. It may be separated from the container body. Further, the outer edge of the conventional container body often has an angle of 90 °, which acts like a sharp wedge, for example, when the container falls at an angle of 45 °, the edge moves inside the lid. There was a problem of cutting.

Accordingly, an object of the present invention is to provide a versatile container body and a lid made of, for example, a synthetic resin having a sealing function for preventing leakage without using a gasket or an O-ring.

Also, while being much lighter than a conventional container body and lid assembled with the same amount of storage, the UN recommendation code, DOT-35 standard, Sharp container standard, JIS standard, It is intended to provide synthetic resin container bodies and lids that meet standards such as dangerous goods transport standards (international), American automobile transport standards, and German DIN standards, and satisfy market requirements. It is intended to provide a container body and a lid for use as UN Recommendations, Class III).

Further, a temper seal having a strong engaging action with the container body is formed in a part of the lid in a detachable manner, and the temper seal is peeled off so that the lid can be easily attached to and detached from the container body. An object of the present invention is to provide a container body and a lid having a sealing function of preventing leakage even in a state.

Further, when the contents in the container are poured, there are no dents or grooves on the inside of the container body or on the lower surface of the lid, which hinder the natural outflow of the contents (liquid or powdery). It is an object of the present invention to provide a wide-mouthed container body and a lid which are injection-molded.

Further, the container body and the lid which absorb the impact force when they are applied, and the container body whose outer peripheral edge does not act on the lid like the above-mentioned wedge even when the impact force is received. The purpose is to provide.

[0022]

The present invention solves these problems as follows. (1) When the container body and the lid are integrally held and sealed therebetween, at least a holding portion performing the holding action and an annular sealing portion performing the sealing action are formed on the lid, On the container body, at least a held portion corresponding to the holding portion, and an annular sealed portion corresponding to the seal portion are formed, and based on the holding action, sealing of the seal portion and the sealed portion is performed. Make the degree more certain. (2) In the above (1), a skirt portion provided with the held portion is formed on the outer peripheral surface of the container body, and a circumferential cut is formed at a start portion of the skirt portion on the outer peripheral surface side. (3) In the above (1) and (2), when the lid is attached to the container main body, the flat portion of the lid and the predetermined held portion of the container main body are substantially flush with each other. . (4) In the above (1), (2), and (3), the holding portion and the sealing portion are formed by an inner leg in a substantially upright state, a connecting portion following the inner leg in this order, and an outer leg in a substantially hanging state. Formed on the inner surface side, the held portion and the sealed portion,
The container body is formed at a portion corresponding to a leg. (5) In the above (4), a concave portion or a convex portion provided in the connecting portion is used as the seal portion, and a convex portion or the convex portion corresponding to the concave portion is used as the sealed portion. Use the corresponding concave part. (6) In the above (4), a protruding portion provided at a lower end portion of the inner leg is used as the seal portion, and a step portion provided at a portion corresponding to the leg portion is used as the sealed portion. (7) In the above (4), (5), and (6), the holding portion and the held portion are respectively provided above and below the outer leg and the leg-corresponding portion, and the upper holding portion and the held portion. The part is detachable by a normal operation by the user, and the holding part and the held part on the lower side are formed so as not to come off by the normal operation or impact of the user, and the lower part of the outer leg is formed. It can be separated from the upper part. (8) In (4), (5), (6), and (7) above,
When the lid is attached to the container body, a space for absorbing shock is formed between the inner peripheral surface portion from the connecting portion of the lid to the outer leg and the leg-corresponding portion.

According to the present invention, as described in (1) above, the annular seal portion formed on the lid and the annular sealed portion formed on the container body are formed on the holding portion formed on the lid and the container body. Due to the holding action with the held portion, it is urged in a direction to seal more.

Further, as described in the above (2), the skirt portion having the held portion is provided on the outer peripheral surface of the container body in such a manner that its starting portion is cut in the circumferential direction so as to be easily deformed. Even when the skirt or the like receives an external impact, the effect of the impact on the peripheral surface of the container body can be reduced by the deformation of the skirt.

Further, as described in (3) above, when the lid is attached to the container main body, for example, one held portion of the container main body is made substantially flush with the flat portion of the lid.
By the pressing force from the flat portion, the holding action between the held portion and the corresponding lid side holding portion becomes more reliable, and the impact from the horizontal direction is enhanced.

Further, as described in (4) above, the holding portion and the sealing portion on the lid side are provided on, for example, the edge side of the lid, and the substantially upright inner leg, the connecting portion following the inner leg, and the substantially hanging outer leg are provided. Formed on the legs.

Further, as described in (5) above, a concave portion is formed on one of the connecting portion of the lid and the corresponding main body portion, and a convex portion is formed on the other, and at least the space between these portions is sealed. I am trying to become.

Also, as in (6) above, a projection is formed at the lower end of the inner leg of the lid, and a step is formed at the corresponding portion on the container body side, and at least the space between them is sealed. I am trying to be.

Further, as in the above (7), the holding portion and the held portion on the lower side of the outer leg of the container are configured so as not to come off due to impact or the like. It does not come off the body. After separating the lower part of the outer leg of the lid from the upper part of the outer leg, the user can remove or relock the holding part and the held part on the upper part of the outer leg by a normal operation.

Further, as described in (8) above, when the lid is attached to the container main body, a space is formed between the predetermined leg portion of the lid and the container main body, so that an external impact is applied. Sometimes this works like a cushion.

[0031]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a cross-sectional view of a container body formed by injection molding when stacked, FIG. 2 is a cross-sectional view of a portion of the container body corresponding to a lid, FIG. 3 is a cross-sectional view of a lid formed by injection molding, and FIG. 5, FIG. 5 is a cross-sectional view when the lid is attached to the container main body, FIG. 6 is an enlarged cross-sectional view of a locking portion between the lid and the container main body, and FIG.
8 is an enlarged sectional view of the first and second lock action parts, FIG. 8 is an enlarged sectional view of the third lock action part, FIG. 9 is an enlarged sectional view of the fourth lock action part, and FIG. A perspective view showing an unopened state, FIG. 11 is a side view showing an unopened state of the container with a lid, FIG. 12 is a side view showing an attachment portion of the container body with a lid, and FIG. FIG. 14 is a side view showing the state, FIG. 14 is a perspective view showing a state where the temper seal has begun to be peeled off, and FIG. 15 is a perspective view showing a state where the temper seal has been peeled off and the lid has been removed.

In this specification, the vertical direction in the container main body of FIG. 11 is referred to as a vertical direction, the horizontal direction as a horizontal direction, the opening side as an upper side, and the bottom side as a lower side.

In these figures, reference numeral 10 denotes a container body, 1
1 is an opening of the container main body, 12 is a lid, 14 is a bottom of the container main body, 16 is an upright portion formed at an edge portion of the bottom 14 of the container main body 10, 18 is an upper peripheral wall of the container main body 10, 20 is a container main body 10 Lower peripheral wall, 21 is the entire peripheral wall, and 22 is a fourth peripheral wall described later.
V-shaped annular cut portion formed on the upper portion of the annular flange 36 of the above, 24 is a step formed between the upper peripheral wall 18 and the lower peripheral wall 20, 25 is the upper end surface of the container body 10, and 26 is the upper surface of the container body 10. An annular concave portion formed on the end surface 25; 28, a first annular flange provided on the outer peripheral surface on the upper end side of the upper peripheral wall 18;
Reference numeral 30 denotes a space between the first annular flange 28 and the lid 12 (see FIG. 7), and reference numeral 32 denotes a second annular portion provided in such a manner that the outer side is lower than the first annular flange 28. A third annular flange provided so as to be substantially horizontal and extending outside the second flange 32; 34a, a lower surface of the third annular flange 34; 34b, an upper surface of the third annular flange 34; Reference numeral 36 denotes a fourth annular flange provided in such a manner that its outer side is lowered to a portion following the annular cut portion 22, 36a is the lower surface of the fourth annular flange 36, 36b is the upper surface of the fourth annular flange 36, and 38 is the fourth annular flange. An annular skirt portion provided downward starting from the annular flange 36 of No. 4,
38a is a central portion of the annular skirt portion, 40 is a first reinforcing rib in the vertical direction formed at a fixed interval between the third flange 34 and the fourth flange 36, 42 is the lower peripheral wall 20 of the container body 10 and Second reinforcing ribs 44 formed at regular intervals between the annular skirt portion 38, 44 are inner legs extending vertically in a part of the lid 12, and 45 are a pair of lower legs formed at the lower end of the inner leg 44. The annular projecting portion 46 is an annular horizontal portion of the lid 12 (the inner leg 44).
And 48 are the lower central part 5 of the annular horizontal part 46.
Reference numeral 0 denotes an annular convex portion (engaged with the annular concave portion 26) formed in the lower central portion 48 of the annular horizontal portion 46, and reference numeral 51 denotes a mode corresponding to the annular convex portion 50 at the upper central portion of the annular horizontal portion 46. , An outer leg 52 formed so as to extend downwardly following the annular horizontal portion 46, a first annular rim 54 provided on an inner peripheral surface upper side of the outer leg 52, and 54a a first annular rim. Upper surface of the annular rim 54, 56 is a second annular rim provided on the inner peripheral surface of the outer leg below the first annular rim 54, 56a is the upper surface of the second annular rim 56, 56b is the second The lower surface of the annular rim 56, 58 is a third annular rim provided on the inner peripheral surface of the outer leg further below the second annular rim 56, 58a is the upper surface of the third annular rim 58, 60 is the outer leg An annular groove formed in a portion corresponding to the third annular rim 58 on the outer peripheral surface of 52; 4 is a fourth annular rim provided on the inner peripheral surface of the outer leg further below the third annular rim 58, 64a is the upper side surface of the fourth annular rim 64, 66 is the panel portion of the lid 12, and A is the container A locking action based on the first annular flange 28 of the body 10 and the first annular rim 54 of the lid 12, B
Is the second annular flange 32 of the container body 10 and the lid 12
The locking action portion based on the second annular rim 56 of the third embodiment, the third annular flange 34 of the container body 10 and the third
A lock action portion based on the annular rim 58 of the container body D
0 shows a fourth annular flange 36 and a locking action based on a fourth annular rim 64 of the lid 12, respectively.

As shown in FIG. 1, the container main body 10 is formed of a cylindrical peripheral wall 21 having an opening 11 formed in an upper portion thereof and provided with an engaging portion with the lid 12. Also, in consideration of stacking empty container bodies 10 without the lid 12 in such a manner as to enter the other container bodies 10, the container body 1
The diameter of the opening 11 of 0 is wider than the diameter of the bottom 14.

The bottom portion 14 expands when a high-temperature material such as oil at 55 ° C. is put into the container body 10, so that the center portion has a shape bulging inside the container body 10. Further, an upright portion 16 is formed at an edge portion of the bottom portion 14 of the container body 10 so that the expanded bottom portion 14 does not bend below the upright portion 16 when a high-temperature substance is put into the container body 10. I have to.

As shown in FIG. 2, the lid 1 of the container body 10 is
An annular concave portion 26 is formed on the upper end surface 25 of the engaging portion with the second peripheral wall 2, and the upper peripheral wall 18 and the lower peripheral wall 20 include first to fourth four annular flanges 28 extending outward in order from the top,
32, 34 and 36 are provided. Fourth annular flange 3
6, an annular cut portion 22 is formed on the peripheral wall side, and an annular skirt portion 38 extending downward is provided on the end side.

The upper peripheral wall 18 is located outside the lower peripheral wall 20 and forms a step portion 24 between them. As will be described later, the step portion 24 engages with an annular projection 45 formed on the inner leg 44 of the lid 12 to receive a part of the load of the lid 12 or to seal the lid 12 and the container body 10. State.

When the lid 12 is attached to the container main body 10, the third annular flange 34 is substantially flush with the panel portion 66, and the lower end 34a of the third annular flange 34 extends outward from the upper peripheral wall 18 more than the upper surface 34b. (See FIG. 8).

The end of the fourth annular flange 36 has an angle such that the lower surface 36a extends outward from the lower peripheral wall 20 more than the upper surface 36b (see FIG. 9). When lid 12 is attached to container body 10 as described below, third annular flange 34 and fourth annular flange 36 engage third and fourth annular rims 58, 64, respectively.

Since the thickness of the annular cut portion 22 is thinner than the other portions, the upper peripheral wall 18 and the annular skirt portion 38 easily bend inward and outward, respectively. Therefore, when the lid 12 is attached to the container main body 10 or when the lid 12 and the edge portion of the upper end surface of the container main body 10
When an impact is applied at an angle of ゜, the upper peripheral wall 18 also moves with the movement of the lid, so that the lid 12 does not easily come off the container body 10 (see FIG. 6).

Further, since the annular cut portion 22 is formed, the time required for injection molding can be shortened, and the peripheral wall portion which is unnecessarily heavy compared to the conventional container having the same size can be removed. The molding time is reduced.

The annular skirt portion 38 is formed so as to be bent once outward at the central portion 38a and then lowered, so that the annular skirt portion 38 has an increased strength against a lateral impact. I have.

The first reinforcing ribs 40 and the second reinforcing ribs 42 are lower in height than those formed on the conventional container body. These reinforcing ribs 40, 42
For example, it acts as an absorbing material against a side impact when the container is dropped from a height of 1.5 m with the container placed in the horizontal direction. In other words, they prevent the impact that the annular skirt 38 receives from the outside from being transmitted directly to the container body.

Further, the number of the reinforcing ribs 40 and 42 is smaller than that of the conventional one, and the height thereof is also low, so that the skirt portion 38 easily bends when the container receives an impact from the side, and the container body 10 Impact is further reduced.

The annular flanges 28, 32, 34, 36, the annular skirt portion 38, the reinforcing ribs 40, 42, the annular concave portion 2
6 and the like are integrally formed with the entire peripheral wall 21 and the bottom portion 14 of the container.

As shown in FIG. 3, the lid 12 is
6 and an inverted U-shaped portion formed therearound and engaged with the container body. The panel portion 66 is located on substantially the same plane as the third annular flange 34.

As shown in FIG. 4, the inverted U-shaped portion of the lid 12 comprises an annular horizontal portion 46, an inner leg 44, and an outer leg 52. The annular convex portion 50 provided at the lower central portion 48 of the annular horizontal portion 46 has, for example, an inverted trapezoidal longitudinal section, and is formed on the upper end surface 25 of the container body 10 when the lid 12 is attached to the container body 10. It fits into the concave portion 26 (see FIG. 6).

The annular convex portion 50 on the upper surface of the annular horizontal portion 46
Since the annular groove portion 51 is formed at a position corresponding to the shape, the thickness of the annular horizontal portion 46 after injection molding is substantially uniform between the portion of the annular convex portion 50 and the other portion, and a molded product with less deformation It can be.

At the lower end of the inner leg 44, a flexible lid 1
Two annular projections 45 are formed to press the step portion 24 of the container body 10 when the container 2 is attached to the container body 10.
Also, inside the outer leg 52, first to fourth annular rims 54, 56, 58 and 64 are formed to engage with the first to fourth annular flanges 28, 32, 34 and 36, respectively. .

The lower portion of the outer leg 52 below the annular groove 60 is a temper seal 62 that can be peeled off by a user or the like when using the container. The annular groove 60 has a temper seal 62.
To make it easy to peel off.

The upper side surfaces 54a, 56a of the first and second annular rims 54, 56 are both formed so as to form an obtuse angle with respect to the outer leg 52.
And, since the detachability from the second annular flanges 28 and 32 is ensured, the lid 1 after the temper seal 62 has been peeled off.
2 can be easily performed (see FIG. 7).

On the other hand, the upper surfaces 58a, 64a of the third and fourth annular rims 58, 64 are both formed so as to be substantially at an acute angle with respect to the outer leg 52, and these annular rims are formed on the container body side. Third and fourth annular flanges 34, 36 of
The lid 12 and the container 10 are securely locked when the temper seal 62 is not peeled off, such as when the container body 10 is transported. Therefore, the lid 12 does not come off the container 10 due to a drop of the container or an impact during handling (see FIGS. 8 and 9).

The entire lid 12, that is, the panel portion 66
And annular rims 54, 56, 58, 64, annular projection 4
5. The engagement portion with the container such as the annular convex portion 50 is integrally formed.

As shown in FIGS. 5 and 6, when the lid 12 is attached to the container body 10, the annular flanges 28, 32, 3
4, 36 and the annular rims 54, 56, 58, 64 engage respectively. The engagement operation at these four locations and the annular convex portion 5
0 and the annular concave portion 26 and the annular protrusion 45
Although the close operation of the step portion 24 and the step portion 24 is independent, when the lid 12 is attached to the container main body 10, they act on each other.

That is, the four locking portions A, B,
Due to the engagement at C and D, the outer leg 52 of the lid 12 is subjected to a deforming action such as to rotate in a counterclockwise direction, so to speak. The annular convex portion 50 is strongly pushed into the annular concave portion 26 and the first seal is formed. And the annular projection 45 presses the step 24 tightly to form the second seal. In addition, the outer peripheral surface of the inner leg 44 of the lid 12 and the inner peripheral surface of the upper peripheral wall of the container body 10 are also in sufficiently close contact, and function as a third seal portion.

At this time, as shown in FIGS. 6 and 7, in the lock action portion B, the second annular flange 32 provided so as to face downward from the upper peripheral wall 18 is shaped such that the annular rim 56 lifts up. Due to the tight engagement, they act like a cam, and attach the inner leg 44 of the lid to the container body 10.
Strongly presses against the upper peripheral wall 18 side, and acts so that the annular convex portion 50 is tightly fitted to the annular concave portion 26.

As shown in FIG. 8, in the lock action portion C, a third annular rim 5 formed at an acute angle with respect to the outer leg 52 is provided.
8, the upper surface 58a of the third annular flange 34 is engaged in such a manner as to lift the lower portion 34a of the third annular flange 34 upward, so that they act like a cam and are formed on the inner leg 44 of the lid. The two annular projections 45 are connected to the step 24 of the container body 10.
It acts to press against.

Further, as shown in FIG.
In the fourth embodiment, the fourth portion is provided so as to face downward from the lower peripheral wall 20.
An upper surface 64a of a fourth annular rim 64 formed by forming a lower portion 36a of the annular flange 36 at an acute angle with respect to the outer leg 52.
Are engaged in such a way as to lift upwards,
These also operate as cams similarly to the lock action portion C and the like.

Further, the four lock action parts A, B, C, D
Thus, a force for urging the two annular protrusions 45 formed on the inner leg 44 of the lid 12 against the step portion 24 of the container body 10 is secured.

Further, the lock action parts A, B, C, D
When a certain load or impact is applied to the container body 10 or the lid 12, the engagement action of these is further enhanced. In addition, these locks interact with each other and transmit motion like a cam, and act as if they were elastic members.

As described above, the four locking portions A, B, C, and D of the present invention function as continuous "dynamic locking portions", so that the lid 12 and the container body 10 can be operated.
And are sealed in a flexible manner.

Further, as shown in FIG. 6, the third annular flange 34 is substantially flush with the panel portion 66 of the lid 12, and reduces the impact that the lid 12 and the container body 10 receive from the side. In addition, as shown in FIG. 7, in the lock action portion A, a space 30 is formed between the outer peripheral portion of the first flange 28 and the lid 12, and the container body 10 and the lid 12 receive an impact. Sometimes acts as a cushion.

Incidentally, the annular concave portion 26 may be formed on the annular horizontal portion 46 of the lid 12, and the annular convex portion 50 may be formed on the upper end surface 25 of the container body 10.

The container body 10 and the lid 12 are formed by injecting a commonly used synthetic resin into each corresponding mold in a turbulent manner (instead of injecting in a laminar manner as in the conventional case). doing. Therefore, residual stress in the container body 10 and the lid 12 is small.

Hereinafter, a method of using the container will be described.
FIGS. 6, 10 and 11 show a state where the temper seal 62 is not peeled off. At this time, the first to third seal portions described above are formed by the four lock action portions A, B, C, and D, and the container body 10 and the lid 12 are in a sealed state.

When the user takes out the contents for the first time, the user first peels off the temper seal 62 and removes the lid 12 from the container body 10 (see FIGS. 14 and 15). As shown in FIG. 6, the portion of the annular groove 60 is thin, so that the temper seal 62 can be easily peeled off.

When the temper seal 62 is peeled off, the third annular flange 34 engages with the third annular rim 58 (locking portion C), and the fourth annular flange 36 engages with the fourth annular rim 64. (Lock action part D) is released.

The ends of the first and second annular rims 54 and 56 are formed so as to form an obtuse angle with respect to the outer leg.
Once the temper seal 62 has been peeled off, the lid 12 can be easily attached and removed.

When the lid 12 is attached to the container main body 10, the engagement between the first annular flange 28 and the first annular rim 54 (locking portion A), the second annular flange 32 and the second The engagement of the annular rim 56 (locking portion B) keeps the first to third seal portions tightly sealed, so that the lid 12 and the container body 1 are kept tightly sealed.
A value of 0 indicates a closed state that does not cause any trouble in handling.

[0070]

As described above, according to the present invention, the annular seal portion formed on the lid and the annular sealed portion formed on the container body are combined with the holding portion formed on the lid and the held portion formed on the container body. By the holding action, the lid and the container body are urged in the direction of more sealing, so that the lid and the container body can be securely sealed.

Further, since the skirt portion having the held portion is provided on the outer peripheral surface of the container body so as to be easily deformed with its starting portion cut in the circumferential direction, the lid or the skirt portion may be subjected to external impact. Even when the skirt portion receives the shock, the influence of the impact on the peripheral surface portion of the container body can be reduced by the deformation action of the skirt portion.

When the lid is attached to the container body,
Since, for example, one held portion of the container body is made substantially flush with the flat portion of the lid, the holding force between the held portion and the corresponding lid-side holding portion is applied by the pressing force from this flat portion. The action is more reliable, and it can be made resistant to impact from the horizontal direction.

Further, the holding portion and the seal portion on the lid side are formed, for example, on the edge side of the lid, and are formed by a leg portion comprising an approximately standing inner leg, a connecting portion following the inner leg, and a substantially hanging outer leg. Therefore, the lid and the container body can be securely sealed.

Also, a concave portion is formed on one of the connecting portion of the lid and the corresponding main body portion, and a convex portion is formed on the other, so that at least the space between them is sealed. And the container body can be reliably sealed.

Further, a protruding portion is formed at the lower end of the inner leg of the lid, and a step portion is formed at the corresponding portion on the container body side, so that at least the space between them is sealed.
The lid and the container body can be securely sealed.

Further, since the holding portion and the held portion on the lower side of the outer leg of the container are configured so as not to come off due to an impact or the like, the lid does not come off from the container main body due to an external impact or rough handling. After separating the lower part of the outer leg of the lid from the upper part of the outer leg, the user can remove or relock the holding part and the held part on the upper part of the outer leg by a normal operation.

When the lid is attached to the container body,
Since a space is formed between the predetermined leg portion of the lid and the container main body, when an external impact is applied, this can act as a cushion.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of the present invention when container bodies formed by injection molding are stacked.

FIG. 2 is a cross-sectional view of a portion of the container body corresponding to a lid according to the present invention.

FIG. 3 is a sectional view of a lid formed by injection molding according to the present invention.

FIG. 4 is a cross-sectional view of a portion of the lid corresponding to the container body according to the present invention.

FIG. 5 is a cross-sectional view of the present invention when a lid is attached to a container body.

FIG. 6 is an enlarged cross-sectional view of a locking portion between the lid and the container body according to the present invention.

FIG. 7 shows first and second lock action portions A,
It is an expanded sectional view of B.

FIG. 8 is an enlarged cross-sectional view of a third lock action portion C of the present invention.

FIG. 9 is an enlarged cross-sectional view of a fourth lock acting portion D of the present invention.

FIG. 10 is a perspective view showing an unopened state of the container with a lid according to the present invention.

FIG. 11 is a side view showing an unopened state of the container with a lid according to the present invention.

FIG. 12 is a side view showing a mounting portion of the container body with a lid according to the present invention.

FIG. 13 is a side view showing the state of the lid of the present invention in which the temper seal has not been removed.

FIG. 14 is a perspective view showing a state in which the temper seal has been started to be peeled off according to the present invention.

FIG. 15 is a perspective view showing a state in which a temper seal is peeled off and a lid is removed according to the present invention.

[Explanation of symbols]

10: Container main body 11: Opening of container main body 12: Lid 14: Bottom of container main body 16: Standing portion formed at edge portion of bottom 14 of container main body 10 18: Upper peripheral wall of container main body 10 20: Container main body 10 Lower peripheral wall 21: Entire peripheral wall 22: V-shaped annular cut portion formed at the upper part of fourth annular flange 36 24: Step formed between upper peripheral wall 18 and lower peripheral wall 20 25: Upper end surface of container body 10 26: annular concave portion formed on the upper end surface 25 of the container body 10 28: first annular flange provided on the outer peripheral surface on the upper end side of the upper peripheral wall 18 30: space between the first annular flange 28 and the lid 12 32: a second annular flange provided on the outer peripheral surface of the upper peripheral wall 18 34: a third annular flange provided on the outer peripheral surface of the upper peripheral wall 18 34a: a lower surface of the third annular flange 34 34b: a third annular flange 3 Upper surface 36: Fourth annular flange 36a provided at a portion following annular notch 22a: Lower surface of fourth annular flange 36b: Upper surface of fourth annular flange 36 38: Starting from fourth annular flange 36 An annular skirt portion 38a provided in a downward direction: a central portion of the annular skirt portion 40: a first reinforcing rib formed between the third flange 34 and the fourth flange 36: a lower peripheral wall 20 and an annular skirt portion 38 44: an inner leg extending vertically in a part of the lid 12; a pair of annular projections formed at the lower end of the inner leg 44; Annular horizontal portion (connecting portion following inner leg 44) 48: Central portion of lower surface of annular horizontal portion 46 50: Annular convex portion engaging with annular concave portion 26 51: Annular formed at central portion of upper surface of annular horizontal portion 46 Groove 52: Annular horizontal part 4 Outer leg 54 formed in a manner extending in the downward direction following the above: a first annular rim 54a provided on the upper side of the inner peripheral surface of the outer leg 52: an upper side surface of the first annular rim 54 56: inside the outer leg 52 Second annular rim 56a provided on the peripheral surface: upper surface 56b of second annular rim 56b: lower surface of second annular rim 56 58: third annular rim 58a provided on the inner peripheral surface of outer leg 52 : Upper side surface of the third annular rim 58 60: Annular groove formed in a portion corresponding to the third annular rim 58 62: Temper seal 64: Fourth annular rim 64 a provided on the inner peripheral surface of the outer leg 52. Upper surface of fourth annular rim 64 66: Panel portion of lid 12 A: Locking portion based on annular flange 28 and annular rim 54 B: Locking portion based on annular flange 32 and annular rim 56 C: Annular flange 34 and B based on annular rim 58 Click action part D: locking action unit based on annular flange 36 and annular rim 64

Claims (23)

[Claims] 1. A sealed structure of a container body and a lid for hermetically sealing the container body and the lid while integrally holding the container body and the lid, wherein the lid has a holding portion performing the holding action, and At least an annular seal portion to be formed, and at least a held portion corresponding to the holding portion and an annular sealed portion corresponding to the seal portion are formed on the container body, based on the holding action. A hermetically sealed structure between a container body and a lid, wherein the degree of sealing between the sealing portion and the portion to be sealed is made more reliable. 2. A skirt portion provided with the held portion is formed on an outer peripheral surface of the container body, and a circumferential cut is formed at a start portion of the skirt portion on the outer peripheral surface side. The closed structure of a container body and a lid according to claim 1. 3. The container according to claim 1, wherein when the lid is attached to the container main body, a plane portion of the lid and the predetermined held portion of the container main body are substantially flush with each other. A sealed structure between the container body and the lid described in the above. 4. The holding portion and the seal portion are formed on the inner surface side of a leg portion including an inner leg in a substantially upright state, a connecting portion successively following the inner leg, and an outer leg in a substantially hanging state. 4. The hermetically sealed structure between a container body and a lid according to claim 1, wherein the sealed portion is formed at a portion corresponding to a leg of the container body. 5. A concave part or a convex part provided in the connecting part as the seal part, and a convex part corresponding to the concave part or a concave part corresponding to the convex part as the sealed part. The closed structure of the container body and the lid according to claim 4, wherein: 6. A projection provided at a lower end of the inner leg is used as the seal portion, and a step provided at a portion corresponding to the leg is used as the portion to be sealed. A sealed structure between a container body and a lid according to claim 4. 7. The holding portion and the held portion are respectively located above and below the outer leg and the leg-corresponding portion, and the upper holding portion and the held portion can be removed by a user by a normal operation. In the aspect, the holding portion and the held portion on the lower side are formed so as not to come off by a normal operation or impact of a user, so that the lower portion of the outer leg can be separated from the upper portion,
7. A sealed structure between a container body and a lid according to claim 4, wherein: 8. When the lid is attached to the container main body, a space for absorbing shock is formed between an inner peripheral surface portion from a connecting portion of the lid to an outer leg and the leg corresponding portion,
The closed structure of a container body and a lid according to claim 4, wherein: 9. A container body having a structure for hermetically sealing a space between the lid and the lid while being held integrally with the lid, wherein a held part corresponding to the lid-side holding part performing the holding action; At least an annular sealed portion corresponding to the lid-side annular sealing portion that performs a sealing action is formed, and when the lid is attached, the sealing portion and the sealed portion are sealed based on the holding action. Characterized in that the extent of the container is made more reliable. 10. A skirt portion provided with the held portion is formed on an outer peripheral surface of the container body, and a circumferential cut is formed at a start portion of the skirt portion on the outer peripheral surface side. The container body according to claim 9, wherein 11. The container body according to claim 9, wherein when the lid is attached, the predetermined held portion is formed so as to be substantially flush with a plane portion of the lid. . 12. The portion to be held and the portion to be sealed are formed at portions corresponding to the legs of the lid substantially consisting of the substantially upright inner leg, the connecting portion following the lid, and the substantially hanging outer leg. The container body according to claim 9, wherein: 13. The method according to claim 1, wherein a convex portion corresponding to the concave portion provided in the connecting portion or a concave portion corresponding to the convex portion provided in the connecting portion is used as the sealed portion. 13. The container body according to 12. 14. The container body according to claim 12, wherein a step portion corresponding to a projecting portion provided at a lower end portion of the inner leg is used as the sealed portion. 15. The held portion is provided on an upper portion and a lower portion of the leg corresponding portion, and the held portion on the upper side is detachable by a user from the holding portion by a normal operation.
15. The container body according to claim 12, wherein the lower held portion is formed in such a manner that the user cannot remove the held portion from the holding portion by a normal operation. 16. A shape which is capable of securing a space for absorbing shock between the connecting portion of the lid and an inner peripheral surface portion from an outer leg to an outer leg when the lid is attached. Item 16. The container body according to Item 12 to 15. 17. A lid having a structure for hermetically sealing a space between the container main body and the container main body while being held integrally with the container main body, wherein a holding part corresponding to the held part on the container main body side performing the holding action is provided. Forming at least an annular seal portion corresponding to an annular sealed portion on the container body side that performs the sealing action, and when the container body is attached, the seal portion and the sealed object are formed based on the holding action. A lid characterized in that the degree of sealing with the part is further ensured. 18. The lid according to claim 17, wherein a flat portion is formed so as to be substantially flush with the predetermined held portion of the container main body when attached to the container main body. 19. The holding portion and the sealing portion are formed on a portion of the portion to which the container body is attached, the leg being a substantially upright inner leg, a connecting portion successively following the inner leg, and a substantially hanging outer leg. 18. The method according to claim 17, wherein:
8. The lid according to 8. 20. The sealing portion is provided on the connecting portion in a shape corresponding to the concave portion on the container body side or on the connecting portion in a shape corresponding to the convex portion on the container body side. 20. The lid according to claim 19, wherein a concave portion is used. 21. The lid according to claim 19, wherein a projecting portion provided at a lower end of the inner leg is used as the seal portion in a shape corresponding to the step on the container body side. . 22. The holding portion on the upper and lower portions of the outer leg, wherein the holding portion on the upper side is detachable from the held portion by a user by a normal operation, and the holding portion on the lower side is provided. 22. The lid according to claim 19, wherein the lid is formed so as not to come off by a normal operation or impact of a user, and the lower part of the outer leg is formed so as to be separated from the upper part. 23. A shape in which a space for absorbing shock is secured between an inner peripheral surface portion from the connecting portion to the outer leg and a portion corresponding to the leg when attached to the container body. The lid according to any one of claims 19 to 22, wherein: