JP2007091340A - Airtight container - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an airtight container capable of preventing an inner pressure rise suitably in a container body due to the generation of gas from accommodated objects with a simple structure without the need of a complicated valve structure or the like, while maintaining the sealing seal structure of the sealing container of a fitting structure in the state which maintains an airtight condition with relation to the airtight container which stores fermentation foods, such as kimchi. <P>SOLUTION: It is characterized in that a gas rent hole for renting gas generated from the accommodated objects being held in the container body is provided by being drilled, and a blocking hole drilled apart from this gas rent hole in the lid of the container, and furthermore, in that a sealing body for blocking the above gas rent hole and the blocking hole are provided, when the inner pressure in the container body is risen by gas generated from the accommodated objects in the state in which the above gas rent hole and the blocking hole are blocked by this sealer, following on the rise of the inner pressure, the above sealer is bent and this sealer is estranged from the gas rent hole in the lid, and gas is discharged from this gas rent hole, the above blocking hole is constituted to be maintained in a state of being blocked by the sealer. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a hermetically sealed container, and more particularly, a synthetic resin container comprising a container body and a lid, and containing food, particularly fermented food such as kimchi, in a sealed state. About.

  Conventionally, as this type of sealed container, there are those described in, for example, Patent Document 1, Patent Document 2, Patent Document 3, and the like.

Japanese Utility Model Publication No. 55-53757 Japanese Utility Model Publication No. 56-46554 Japanese Utility Model Publication No. 58-143337

  That is, as shown in FIG. 31, the closed containers disclosed in Patent Documents 1 to 3 are fitted to a container main body 1b having an opening 3b on the upper surface and an upper end 5b of the container main body 1b. A lid body 2b having a groove 6b. An annular projection 4b is formed on the upper outer peripheral surface of the container body 1b, and an engagement recess 7b with which the projection 4b can be engaged is fitted into the lid body 2b. A thin portion of the inner wall surface of the fitting groove 6b formed on the inner wall surface in the mating groove 6b and formed with the engagement recess 7b is formed as a seal release portion 8b, and the lower part is cut off from the seal release portion 8b. Thus, the lid body 2b is configured to be detachable from the container body 1b.

  Such a sealed container is formed in such a structure that it cannot be opened unless the lower part is cut off from the seal release portion 8b. Therefore, not only the object to be stored but also the leakage of the liquid generated accompanying it is suitable. A hermetically sealed state that can be prevented is maintained. For this reason, it is widely applied for food storage such as pickles, plum pickles, and other various side dishes that generate liquids incidentally.

  However, since the hermetic seal state is maintained in this manner, a new problem may occur depending on the type of the object to be stored. That is, when the items to be stored are fermented foods such as kimchi, gas is generated from the fermented foods, and the internal pressure in the container body increases.

  Such an increase in internal pressure due to the generation of gas occurs even in a general container that is not in a hermetically sealed state, but in particular in the case of a hermetically sealed container that maintains the hermetically sealed state as described above, Since there is less possibility of gas leakage compared to other containers, the internal pressure rises remarkably. As a result, there is a risk of explosion and damage to the container. .

  In order to solve the problems associated with the increase in internal pressure in the container main body due to the generation of gas from the object to be stored, patent applications such as the following Patent Document 4 have been filed. In the invention according to Patent Document 4, a hole is formed in a lid sheet, the hole is closed with an adhesive tape, and the adhesive tape is peeled off by an internal pressure to perform gas venting.

JP-A-6-247458

  However, in the technique as disclosed in Patent Document 4, since the hole is formed in the lid sheet, not the lid, even if the adhesive tape is peeled off and temporarily vented, The internal pressure of the space formed by the lid and the container main body rises before much time elapses, and the internal pressure cannot be effectively increased, and the problem such as explosion cannot be solved.

  In addition, in the specification [0010] of Patent Document 4, “When the overpressure is eliminated by the outflow of gas from the hole, the pressure-sensitive adhesive tape is lowered, and the peeled release agent layer film is united again to block the opening”. In the first place, it is difficult to think that such an adhesive tape has a valve function that automatically opens and closes a hole, and it is not feasible. Further, since the opening of the container main body is sealed with the lid sheet, the sealing and sealing performance is achieved by the fitting structure at the peripheral edge between the container main body and the lid body as in the above-mentioned Patent Documents 1 to 3. It is essentially difficult to apply to a container having a structure that maintains the above.

   On the other hand, various containers have been developed for the purpose of degassing, but each has a complicated valve structure and contains fermented foods such as kimchi as described above. In order to be applied to a versatile container, it is difficult to put it into practical use because the structure is too complicated and the production cost becomes too high.

  The present invention has been made to solve the above-described problems, and without requiring a complicated valve structure or the like while maintaining the hermetic seal structure of the hermetic container having the fitting structure as described above. An object of the present invention is to provide a sealed container capable of suitably preventing an increase in internal pressure in a container body due to generation of gas from an object to be stored with a simple structure.

  The present invention has been made to solve such a problem, and the invention according to claim 1 includes a container main body 1 having an opening 3 on an upper surface thereof, and the container main body 1 for closing the opening 3. In the sealed container composed of the lid body 2 fitted into the container, the lid body 2 is provided with a gas vent hole 14 for venting the gas generated from the object to be stored in the container body 1. In addition, a blocking hole 17 is provided separately from the gas vent hole 14, and a seal body 15 for closing the gas vent hole 14 and the block hole 17 is further provided, and the gas vent hole is formed by the seal body 15. When the internal pressure in the container main body 1 is increased by the gas generated from the object to be stored in the state in which the opening 14 and the closing hole 17 are closed, the sealing body 15 is bent as the internal pressure increases, and the sealing body 15 15 from the vent hole 14 of the lid 2 And while, together with the gas from the gas vent hole 14 is discharged, it said closed hole 17 and characterized in that is configured to be maintained in the state of being closed by the seal member 15.

  According to a second aspect of the present invention, there is provided an airtight container comprising a container body 1 having an opening 3 on an upper surface and a lid body 2 fitted to the container body 1 so as to close the opening 3. The body 2 is provided with a gas vent hole 14 for venting gas generated from an object to be stored in the container body 1, and a blocking hole 17 is provided separately from the gas vent hole 14. Further, a sealing body 15 having a gas vent hole projection 19 that can be inserted into the gas vent hole 14 and a closing protrusion 20 that can be inserted into the block hole 17 is further provided. A gas generated from an object to be stored in a state in which the projection 19 for the hole is inserted into the gas vent hole 14 of the lid body 2 and the projection 20 for closing the seal body 15 is inserted into the hole 17 for closure of the lid body 2. When the internal pressure in the container body 1 rises due to With the rise, the sealing body 15 is bent and the gas vent hole projection 19 of the sealing body 15 is separated from the gas vent hole 14 of the lid body 2, and the gas is discharged from the gas vent hole 14. The occlusion projection 20 is prevented from coming out of the occlusion hole 17.

  Further, according to a third aspect of the present invention, in the sealed container according to the second aspect, a locking portion 21 having a slightly larger diameter than the closing hole 17 is formed on the closing projection 20, and the locking portion 21 side is formed. Is inserted into the closing hole 17, the closing projection 20 is forcibly press-fitted into the closing hole 17, and after the press-fitting, the locking portion 21 is locked to the back side of the lid 2. Thus, the occlusion projection 20 is prevented from coming out of the occlusion hole 17. Further, the invention according to claim 4 is the airtight container according to claim 2, wherein the gas vent hole projection 19 is formed substantially at the center of the seal body 15, and the closing projection is formed on both sides of the gas vent hole projection 19. 20 is formed.

  Further, the invention according to claim 5 is characterized in that in the sealed container according to any one of claims 1 to 4, the seal body 15 is formed separately from the lid body 2. Further, the invention according to claim 6 is the sealed container according to any one of claims 1 to 4, wherein the seal body 15 is formed integrally with the lid body 2 via the hinge portion 22. . Furthermore, the invention described in claim 7 is characterized in that in the sealed container according to any one of claims 1 to 6, a sealing protrusion capable of contacting the sealing body 15 is formed on the upper surface of the lid body 2. To do.

  Furthermore, the invention according to claim 8 is the sealed container according to any one of claims 1 to 7, wherein the seal body 15 is substantially flush with the top surface of the lid body 2 on the top surface of the lid body 2. It is characterized in that a fitting recess 16 is formed for fitting. Further, the invention according to claim 9 is the sealed container according to claim 8, wherein the seal body 15 is fitted to the fitting recess 16 of the lid body 2 and extends to the outside of the fitting recess 16. The protruding piece 24 is formed on the peripheral edge of the seal body 15.

  As described above, the present invention provides a sealed container comprising a container main body having an opening on the upper surface and a lid fitted to the container main body so as to close the opening. A gas vent hole for venting gas generated from an object to be stored in the main body is formed, and a blocking hole is formed separately from the gas vent hole, and the gas vent hole and the blocking hole are formed. When the internal pressure in the container body rises due to the gas generated from the stored object in a state where the gas vent hole and the closing hole are closed by the seal body, As the internal pressure increases, the sealing body is bent and the sealing body is separated from the gas vent hole of the lid body, and gas is discharged from the gas vent hole, and the closing hole is closed by the seal body. In a configuration that is maintained Therefore, the seal body is bent by the internal pressure rise in the container body while the sealed state of the container is maintained so that the seal body does not come off from the lid body and does not cause liquid leakage, etc. There is an effect that the gas is suitably discharged from.

  Therefore, even if a certain period of time has elapsed after storing fermented foods such as kimchi, there is no risk of explosion and damage to the container.

  Further, when the seal body to be mounted on the lid is configured to have a gas vent hole projection and a closing projection, the entire seal body has a simple structure, so that the conventional complicated There is an effect that a structure suitable for a versatile container for storing fermented foods such as kimchi can be obtained without increasing the manufacturing cost as in a container having a simple valve structure.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(Embodiment 1)
As shown in FIGS. 1 to 8, the sealed container of this embodiment includes a container body 1 and a lid 2. The container main body 1 is made of polypropylene having a bottomed substantially cylindrical shape having an opening 3 on the upper surface, and a protrusion 4 is formed on the upper outer peripheral surface of the container main body 1. The lid body 2 is also made of polypropylene like the container body 1, and is formed in a substantially circular plane as shown in FIG.

  A fitting groove 6 that can be fitted to the upper end portion 5 of the container body 1 is formed on the lower surface side of the peripheral edge portion 12 of the lid 2, and the container body is formed on the inner wall surface in the fitting groove 6. An engaging recess 7 that can be engaged with one protrusion 4 is formed. A thin portion of the inner wall surface of the fitting groove 6 in which the engagement recess 7 is formed is formed as a seal release portion 8, and a lower portion of the seal release portion 8 is formed as a cut piece 13.

  Further, a knob 9 serving as a starting point for cutting out the cut piece 13 through the seal release portion 8 is provided at a starting point part of the cut piece 13 formed in an annular shape. As shown in FIG. 5, the knob 9 is formed in an inverted L-shaped cross section. Further, in order to easily cut the excision piece 13, a gap 10 is formed in the upper part of the knob piece 9.

  Further, a gas vent hole 14 is formed at a position relatively close to the peripheral edge portion 12 of the lid body 2 for releasing gas generated from an object stored in the container body 1 to the outside. Further, the fitting recess 16 for fitting a seal body 15 for allowing a gas release from the gas vent hole 14 and preventing leakage of a substance such as a liquid other than the gas is provided in the gas vent hole. 14 is formed in the lid body 2. Further, obstruction holes 17 and 17 are formed on both sides of the gas vent hole 14.

  As shown in FIG. 8, the sealing body 15 fitted into the fitting recess 16 is formed in a substantially elliptical shape on the plane, and as shown in FIGS. 9 and 10, on the lower surface side of the sealing body main body 18, Degassing hole projections 19 inserted into the degassing holes 14 and blocking projections 20 and 20 inserted into the blocking holes 17 are integrally projected. Further, the lower portions of the closing projections 20, 20 are formed in an inverted substantially truncated cone shape, and locking portions 21, 21 locked on the back surface side of the lid body 2 are formed. The seal body 15 is made of the same polypropylene as the container body 1 and the lid body 2, but when gas is generated from an object to be stored in the container body 1 and the internal pressure in the container body 1 is increased. It is configured to have a degree of flexibility that swells upward slightly.

  Then, as shown in FIG. 11, the seal body 15 is fitted into the fitting recess 16 of the lid 2, and the gas vent hole projection 19 is formed in the gas vent hole 14 of the lid 2. And the closing protrusions 20 and 20 are inserted into the closing hole 17 to be attached to the lid 2.

  Further, the locking portions 21 and 21 are locked to the back surface side of the lid 2 in a state where the blocking protrusions 20 and 20 are inserted into the blocking holes 17 and 17. The protrusion 20 is prohibited from coming out. That is, the maximum diameter of the locking portion 21 of the closing projection 20 is slightly larger than the inner diameter of the closing hole 17, and therefore the closing projection 20 is forcibly pressed into the closing hole 17. is there. The entrance portion of the closing hole 17 is formed to have a slightly large diameter and a tapered shape as shown in FIG. 7 so that the closing protrusion 20 can be forcibly press-fitted.

  2, 3, 4, 6, and 7 illustrate a state in which the seal body 15 is not attached. However, when the container is actually used, that is, the object to be stored is contained in the container body 1. When the container is housed in the container, the container is used in a state in which the seal body 15 is fitted into the fitting recess 16 and attached to the lid body 2 as shown in FIG.

  In this case, when the item to be stored is a general item such as food, the presence or absence of the seal 15 does not directly affect the item, but the item to be stored is a fermented food such as kimchi. In this case, the seal body 15 will act suitably. That is, when fermented foods such as kimchi are stored in the container body 1, gas is generated from the kimchi, and the internal pressure in the container body 1 increases accordingly. In particular, the upper end portion 5 of the container body 1 is fitted into the fitting groove 6 of the lid body 2, and the protrusion 4 of the container body 1 is engaged with the engagement recess 7 of the lid body 2, so that the container body 1 and the lid Since the hermetically sealed state with the body 2 is maintained, the gas generated as described above is less likely to leak as compared with a container without such a sealed fitting structure. Easy to rise.

  However, in the present embodiment, since the gas vent hole 14 is formed in the lid 2 as described above, gas is released from the gas vent hole 14. In this case, since the gas vent hole projection 19 of the sealing body 15 is inserted into the gas vent hole 14 and the gas vent hole 14 is closed, the liquid that is incidentally generated from kimchi or the like, which is an object to be stored. Does not leak from the vent hole 14 inadvertently.

  However, since the sealing body 15 is configured to be flexible enough to bulge upward when the internal pressure in the container body 1 rises as described above, the sealing body 15 is made of kimchi or the like that is an object to be stored. When the internal pressure in the container body 1 gradually increases due to the generated gas, the central portion of the seal body 15 is slightly bent upward by the internal pressure. As a result, the gas vent hole projections 19 and the gas vent holes 14 are bent. There will be a slight gap between the two. As a result, the gas is appropriately released from the gas vent hole 14 to prevent the internal pressure in the container body 1 from rising further. As a result, an explosion caused by an abnormal increase in internal pressure is preferably prevented.

  On the other hand, since the closing protrusions 20 and 20 are inserted into the closing hole 17 and the locking portion 21 is locked to the back side of the lid body 2, the generation of gas in the container body 1 as described above is performed. Thus, even if a large force due to the internal pressure acts upward on the seal body 15, the locking portion 21 of the seal body 15 is locked to the back surface side of the lid body 2, so Therefore, upward bending does not occur unlike the central portion, and therefore, the seal body 15 is not inadvertently detached from the lid body 2 due to the internal pressure in the container body 1. Further, almost no gas is released from the closing hole 17 in which the closing protrusion 20 is inserted, and the gas is suitably vented only from the vent hole 14.

  Thus, in this embodiment, the both sides of the seal body 15 are formed by the seal body 15 having a simple structure in which the central gas vent hole protrusion 19 and the closing protrusions 20 and 20 on both sides are protruded. The sealing body 15 does not bend while maintaining the locked state with the lid 2, and the sealing body 15 is slightly bent only at the central portion, and the gas vent hole projection 19 is slightly detached from the gas vent hole 14. In this case, the degassing of the container body 1 is suitably performed.

  When the container having the above-described configuration is opened, the handle piece 9 is gripped, and the handle piece 9 is pulled in the direction of the arrow as shown in FIGS. As a result, the cut piece 13 is cut off, the hermetically sealed state of the container is released, and the lid 2 can be removed from the container main body 1.

(Embodiment 2)
In the present embodiment, the shape of the seal body 15 is changed. That is, in the present embodiment, as shown in FIG. 14, the seal body main body 18 is formed in a substantially rectangular shape in plan, and is different from that in the first embodiment in which the seal body main body 18 is formed in a substantially elliptical shape.

  As shown in FIGS. 15 and 16, a degassing hole projection 19 and a closing projection 20, 20 are integrally projected on the lower surface side of the seal body 18, and the sealing body 20 is further engaged with the closing projection 20. A stop 21 is formed, which is the same as in the first embodiment. Although it differs from the first embodiment in that the closing protrusion 20 is formed in a substantially elliptical shape on the back, the functions of the closing protrusion 20 and the gas vent hole protrusion 19 and the action of the seal body 15 are the same as in the first embodiment. Therefore, detailed description thereof is omitted.

  The seal body 15 of this embodiment can be attached to the lid 2 of any shape of the container, but is preferably attached to the lid 2 of a square container such as a square or rectangle. Even when the sealing body 15 of the present embodiment is mounted on the lid body 2, as in the first embodiment, the container body 1 can be degassed appropriately, and an explosion or the like due to an increase in internal pressure can be achieved. It can prevent suitably.

(Embodiment 3)
In the present embodiment, the seal body 15 is integrally formed with the lid body 2. That is, in this embodiment, as shown in FIGS. 17 to 22, the seal body 15 is integrally formed with the lid body 2 via the hinge portion 22, and in this respect, the separate seal body 15 is the lid body 2. It differs from the case of Embodiment 1 and 2 with which it was mounted | worn. Further, the seal body main body 18 is formed in a substantially rectangular shape having a semicircular portion on one side, and the shape of the seal body main body 18 is different from that of the first and second embodiments.

  However, as shown in FIGS. 17 to 22, a gas vent hole projection 19 and closing projections 20, 20 are integrally projected on one surface side of the seal body 18, and further, the closing projection 20. The point which the latching | locking part 21 is formed in is the same as Embodiment 1 and 2. Further, the point that the gas vent hole 14 and the blocking holes 17 and 17 are formed in the lid body 2 is also common to the first embodiment.

  Also in the present embodiment, the sealing body main body 18 is fitted into the fitting recess 16 of the lid body 2 as in the first embodiment, and the gas vent hole projection 19 is inserted into the gas vent hole 14 of the lid body 2. Further, the closing protrusions 20, 20 are inserted into the closing hole 17, so that they are attached to the lid 2.

  However, in this embodiment, since the seal body 15 is integrally formed with the lid body 2 via the hinge portion 22, the seal body 15 is removed from the lid body 2 even when the seal body 15 is detached from the lid body 2. Therefore, the loss of only the seal body 15 is preferably prevented. As in Embodiments 1 and 2 above, degassing of the container body 1 can be suitably performed, and an explosion or the like due to an increase in internal pressure can be suitably prevented.

(Embodiment 4)
In the present embodiment, a sealing projection 23 is formed on the upper surface of the lid 2. That is, in the present embodiment, as shown in FIGS. 23 and 24, the seal projection 23 is formed around the gas vent hole 14 on the upper surface of the lid 2. The sealing projection 23 is formed in the peripheral portion of the gas vent hole 14 so as to have a substantially ring shape on a plane.

  As shown in FIG. 23 and FIG. 24, closure holes 17 and 17 are formed on both sides of the gas vent hole 14 in that a fitting recess 16 for fitting the seal body 15 is formed. The point is the same as in the first embodiment. Further, the sealing body 15 is formed in a substantially oval shape in a plane, and a gas vent hole projection 19 and closing projections 20 and 20 are integrally formed on the lower surface side of the sealing body main body 18 as shown in FIGS. Further, a locking portion 21 is formed on the closing projection 20, and these points are the same as in the first embodiment. Further, it is made of polypropylene, and has such a flexibility that it slightly expands upward when gas is generated from an object in the container body 1 and the internal pressure in the container body 1 rises. This is common to the first embodiment.

  Also in the present embodiment, as shown in FIG. 27, the degassing hole projection 19 is inserted into the degassing hole 14 and the closing protrusions 20 and 20 are inserted into the closing holes 17 and 17. The portions 21, 21 are locked to the back side of the lid body 2, thereby preventing the closing projection 20 from coming out of the closing hole 17.

  In this embodiment, the gas vent hole projection 19 of the seal body 15 is inserted into the gas vent hole 14 of the lid body 2 to close the gas vent hole 14, and the seal projection 23 of the lid body 2 is sealed. Since it is in contact with the back surface side of the body 15, it is more reliably prevented that the liquid incidentally generated from the stored items such as fermented food is inadvertently leaked from the vent hole 14.

  On the other hand, when gas is generated from an object to be stored such as fermented food, and the internal pressure in the container body 1 is increased accordingly, the central portion of the seal body 15 is slightly bent upward as in the first embodiment, As a result, a slight gap is formed between the gas vent hole projection 19 and the gas vent hole 14. Further, as a result of the bending of the sealing body 15 slightly, the contact state between the sealing body 15 and the sealing projection 23 is released. Therefore, also in this embodiment, the gas is appropriately released from the gas vent hole 14 to prevent the internal pressure in the container body 1 from rising further, and it is preferable to prevent an explosion due to an abnormal increase in the internal pressure. Will be.

(Embodiment 5)
The present embodiment is an embodiment in which a sealing projection 23 is formed on the upper surface of the lid 2, as in the fourth embodiment. However, in this embodiment, as shown in FIG. 28, the gas vent hole projection 19 is not formed on the seal body 15, and therefore the gas vent hole 14 is open. This point is different from the fourth embodiment.

  The point that the seal projection 23 is in contact with the back side of the seal body 15 is the same as in the fourth embodiment. That is, in the present embodiment, the gas vent hole 14 is not closed by the gas vent hole projection 19 as in the fourth embodiment, and is in an open state. It is blocked only by the contact between the seal projection 23 and the seal body 15.

  Thus, in this embodiment, since the gas vent hole 14 is in an open state, the sealing performance itself of the gas vent hole 14 is better in the fourth embodiment, but the material of the seal body 15 is comparative. In some cases, the sealing body 15 of this embodiment can be suitably used when it is hard and has relatively little flexibility.

  That is, when the material of the sealing body 15 is relatively hard and has relatively little flexibility, the gas vent hole projection 19 is inserted into the gas vent hole 14 as in the fourth embodiment. In this case, the sealing body 15 does not bend so much even when the internal pressure in the container body 1 is increased, so that the gas vent hole projection 19 may not smoothly come out of the gas vent hole 14. In some cases, the release of the gas is not suitably performed. In such a case, it is effective to employ the seal body 15 that is not provided with the gas vent hole projection 19 as in the present embodiment.

  Since other configurations are the same as those of the fourth embodiment, detailed description thereof is omitted.

(Embodiment 6)
In the present embodiment, an extension piece 24 is formed on the seal body 15. That is, in the present embodiment, as shown in FIG. 29, the extending piece 24 is formed thinly and integrally on the entire periphery of the upper periphery of the seal body 15. As a result of the extension piece 24 being formed, the extension piece 24 of the seal body 15 is fitted into the fitting recess 16 in a state where the seal body 15 is fitted into the fitting recess 16 as shown in FIG. Is extended to the outside of the lid 2 and comes into contact with the upper surface of the lid 2.

  As a result, it is possible to prevent dust and dirt from inadvertently entering the fitting recess 16 of the lid 2 from the outside. As a result, such dust and dirt are inadvertently introduced into the container body 1 from the gas vent hole 14. It will be prevented from intruding into.

  Since the configuration other than the point that the extending piece 24 is formed on the seal body 15 is the same as that of the first embodiment, the description thereof is omitted.

(Other embodiments)
In the first to third embodiments, a single gas vent hole projection 19 is provided in the approximate center of the seal body 18, and a total of two closing projections 20, 20 are provided on each side. Although formed, the number and shape of the gas vent hole projections 19 and the closing projections 20 and the positions where these are formed are not limited to the above embodiment.

  Accordingly, the number and shape of the gas vent holes 14 and the closing holes 17 formed in the lid body 2 are not limited to this embodiment. Further, the position on the lid 2 where the gas vent hole 14 and the blocking hole 17 are formed is not limited to the embodiment.

  Further, the shape of the seal body 18 is not limited to the substantially elliptical shape of the first and fourth embodiments, the substantially rectangular shape of the second embodiment, and the substantially rectangular shape having a semicircular portion on one side of the third embodiment. There may be other shapes.

  Furthermore, in each of the above embodiments, since the fitting recess 16 into which the seal body main body 18 can be fitted is formed in the lid body 2, the upper surface of the seal body 15 and the lid are prevented so that the seal body 15 does not protrude from the lid body. Although the preferable effect that the sealing body 15 can be attached to the lid body 2 in a state where the upper surface of the body 2 is substantially flush with the upper surface of the body 2 is obtained, such a fitting recess 16 is formed in the lid body 2. This is not an essential condition for the present invention.

  Further, in Embodiments 1 to 4 and Embodiment 6 described above, the seal body 15 includes the gas vent hole protrusion 19 that can be inserted into the gas vent hole 14 and the closing protrusion 20 that can be inserted into the hole 17 for closing. However, it is not an essential condition for the present invention to provide both the vent hole projection 19 and the closing projection 20, and the vent hole projection 19 is not formed as in the fifth embodiment. The gas vent hole 14 may be opened, and the gas projection from the gas vent hole 14 may be prevented from leaking by the contact between the seal projection 23 and the seal body 15.

Further, in each of the above embodiments, the closing projection 20 that can be inserted into the closing hole 17 of the lid body 2 is formed on the seal body 15, and even if the seal body 15 is bent and the gas vent hole 14 is opened, the closure hole 20 is closed. Although the blocking hole 17 is prohibited from coming out of the hole 17 and the blocking hole 17 is kept closed by the sealing body 15, the sealing body 15 is bent and degassed. The means for maintaining the closing hole 17 in a state in which the hole 14 is kept open with the seal body 15 in the open state is formed by forming the closing protrusion 20 on the seal body 15 as in the embodiment. However, the present invention is not limited to means for inserting the closing projection 20 into the closing hole 17 and prohibiting the withdrawal. It is also possible to employ a means for fixing the sealing body 15 to the lid body 2 so that the closing hole 17 can be closed by means other than the closing protrusion 20.

  However, the means for inserting the closing projection 20 into the closing hole 17 and prohibiting the withdrawal is as described above in order to keep the closing hole 17 closed with the seal body 15. This is the simplest and most reliable means.

  Furthermore, in the said embodiment, although the fitting groove 6 which can be fitted to the upper end part 5 of the container main body 1 was formed in the cover body 2 side, a fitting groove is formed in the container main body 1 side contrary to this. The peripheral portion of the lid 2 may be fitted into the fitting groove of the container body 1 and hermetically sealed. Therefore, the configuration for releasing the hermetically sealed state is also configured such that the lower cut piece 13 is cut through the seal release portion 8 in the thin portion of the inner wall surface in the fitting groove 6 as in the embodiment. It is not limited to.

  Moreover, in the said embodiment, although the container main body 1 and the cover body 2 were both comprised with the polypropylene, the material of the container main body 1 and the cover body 2 is not restricted to this, For example, you may be comprised with polyethylene. Similarly, the material of the sealing body 15 is not limited to the polypropylene of the embodiment, and may be made of polyethylene, for example.

  However, it is necessary that the sealing body 15 has such a flexibility that the sealing body 18 can be slightly bent when an internal pressure is generated in the container body 1 due to the generation of gas from the object to be stored.

  Furthermore, in the said embodiment, although the container main body 1 and the cover body 2 were formed in plane substantially circular shape, the shape of the container main body 1 and the cover body 2 is not limited to this embodiment, for example, square shape The thing of such a shape may be sufficient.

  Furthermore, although the said embodiment demonstrated the case where fermented foods, such as a kimchi, were used as a to-be-contained thing, the kind of to-be-contained thing is not limited to this embodiment, In short, it can generate | occur | produce gas. What is necessary is just to apply to a to-be-contained object.

The front view of the airtight container of one Embodiment. FIG. FIG. 3 is a cross-sectional view taken along line AA in FIG. 2. The principal part expanded sectional view. The principal part expanded sectional view. The principal part enlarged plan view. BB sectional drawing of FIG. The top view of the sealing body with which a cover body is mounted | worn. The front view of the seal body. The side view of the seal body. Sectional drawing of the state which attached the sealing body to the cover body. The front view which shows operation which cancels | releases the sealing seal state of a container. FIG. The top view of the seal body of other embodiments. The front view of the seal body. The side view of the seal body. The top view of the cover of other embodiments. The CC sectional view taken on the line of FIG. The principal part enlarged plan view of FIG. The DD sectional view taken on the line of FIG. The principal part expanded sectional view which shows the state which bent the hinge part and attached the sealing body to the cover body. The partial cross section side view of the state seen from the E direction of FIG. The principal part enlarged plan view of the cover body of other embodiment. FF sectional view taken on the line of FIG. The top view of the seal body of the embodiment. The front view of the seal body. Sectional drawing of the state which attached the sealing body to the cover body. Sectional drawing of the state which mounted | wore the cover body with the seal body of other embodiment. The front view of the seal body of other embodiments. Sectional drawing of the state which mounted | wore the cover body with the seal body of the embodiment. The principal part expanded sectional view which shows the conventional fitting structure of a cover body and a container main body.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Container main body 2 ... Lid body 3 ... Opening part 14 ... Gas vent hole 15 ... Sealing body 16 ... Fitting recessed part 17 ... Closure hole 18 ... Seal body main body 19 ... Protrusion for gas vent hole 20 ... Protrusion for closure 21 ... Locking part 22 ... Hinge part 23 ... Protrusion for seal 24 ... Extension piece

Claims (9)

In a sealed container comprising a container body (1) having an opening (3) on an upper surface and a lid (2) fitted to the container body (1) so as to close the opening (3), The lid (2) is provided with a gas vent hole (14) for venting gas generated from an object to be stored in the container main body (1) and the gas vent hole (14). Further, a sealing hole (17) is provided, and a sealing body (15) for closing the gas venting hole (14) and the closing hole (17) is further provided, and the gas is removed by the sealing body (15). When the internal pressure in the container main body (1) is increased by the gas generated from the object to be stored in the state in which the punch hole (14) and the closing hole (17) are closed, the seal is increased as the internal pressure increases. The body (15) bends so that the seal body (15) is degassed (14) in the lid (2). The gas is exhausted from the gas vent hole (14), and the closing hole (17) is configured to be kept closed by the seal body (15). A sealed container characterized by. In a sealed container comprising a container body (1) having an opening (3) on an upper surface and a lid (2) fitted to the container body (1) so as to close the opening (3), The lid (2) is provided with a gas vent hole (14) for venting gas generated from an object to be stored in the container main body (1) and the gas vent hole (14). Separately, an obturation hole (17) is formed, and a gas vent hole projection (19) that can be inserted into the gas vent hole (14), and an obstruction projection (20) that can be inserted into the obstruction hole (17). ), And a gas vent hole projection (19) of the seal body (15) is inserted into the gas vent hole (14) of the lid body (2). In the state where the closing protrusion (20) of (15) is inserted into the closing hole (17) of the lid (2), When the internal pressure in the container body (1) rises due to the generated gas, the seal body (15) is bent as the internal pressure rises, and the gas vent hole projection (19) of the seal body (15) It is separated from the gas vent hole (14) of the lid (2), the gas is discharged from the gas vent hole (14), and the closing protrusion (20) is prohibited from coming out of the closing hole (17). A hermetically sealed container characterized by having a configuration as described above.   The closing projection (20) is formed with a locking portion (21) slightly larger in diameter than the closing hole (17), and is inserted into the closing hole (17) from the locking portion (21) side. When closing, the closing protrusion (20) is forcibly press-fitted into the closing hole (17), and after the press-fitting, the locking portion (21) is locked to the back side of the lid (2). The closed container according to claim 2, wherein the closing protrusion (20) is prevented from coming out of the closing hole (17).   The gas vent hole projection (19) is formed substantially at the center of the seal body (15), and the closing projections (20) are formed on both sides of the gas vent hole projection (19). Sealed container.   The sealed container according to any one of claims 1 to 4, wherein the seal body (15) is formed separately from the lid body (2).   The sealed container according to any one of claims 1 to 4, wherein the seal body (15) is formed integrally with the lid body (2) via the hinge portion (22).   The sealed container according to any one of claims 1 to 6, wherein a sealing projection (23) capable of contacting the sealing body (15) is formed on an upper surface of the lid (2).   A fitting recess (16) for fitting the sealing body (15) is formed on the upper surface of the lid (2) so as to be substantially flush with the upper surface of the lid (2). The airtight container in any one of thru | or 7.   In a state where the seal body (15) is fitted in the fitting recess (16) of the lid body (2), the extending piece (24) extending to the outside of the fitting recess (16) is the seal body ( The sealed container according to claim 8, which is formed on the peripheral edge of 15).

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