JP2011178426A - Container - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a container in which an internal pressure can be released outside, a container body and a lid body are easily attached to each other, and contents inside are prevented from spilling out when opening the container. <P>SOLUTION: A container 1 includes a container body 2 having a container body flange 23 and a lid body 3 having a lid body flange 32, and the lid body flange 32 is placed on the container body flange 23. A removable holder 4 for holding the container body flange 23 and the lid body flange 32 is provided to the container 1. The holder 4 has a circumferential wall part 40 arranged radially outward of the container body flange 23 and the lid body flange 32, a lower wall part 42 arranged below the container body flange 23, and an upper wall part 41 arranged above the lid body flange 32. When an internal pressure of the container increases, the lid body 3 is displaced upward, thereby, inside the container communicates with outside thereof through a communicating path formed between the container body flange 23 and the lid body flange 32. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a container in which a mouth of a container body is covered with a lid.

When storing contents such as liquid foods and seasonings in a container, volatile components are produced from the contents or the volume of the contents expands with changes in the environment such as changes over time and temperature. The internal pressure of the container may increase. In addition, for example, in the case of a hair dyeing solution used by mixing two agents, gas may be generated after mixing the two agents, and the internal pressure in the container is reduced when the mixed solution mixed in the container is stored without being used up. Will rise.
When the internal pressure of the container is increased in this way, the contents may be unintentionally scattered outside the container, or the cap may be removed to open the container.

  Therefore, as a technique for preventing the above-described problems, a container having a cap (lid body) attached to the mouth portion of a container body as shown in Patent Document 1, for example, is known. In this container, when a through hole is formed in the cap body attached to the mouth of the container body, and a valve member is fitted on the back surface of the cap body at a position facing the through hole, the internal pressure of the container is increased. In addition, a gap is formed between the valve member and the cap body, and the pressure is released to the outside of the container through a through hole communicating with the gap.

JP 2006-182425 A

However, in the above-described conventional container, since the mouth part of the container body and the lid (cap) are screwed together, the body part and the lid body of the container body are strongly gripped at the time of opening, and both are relatively Need to be rotated. For this reason, at the time of opening, the trunk | drum of a container main body may deform | transform with gripping force and there exists a possibility that the contents may spill out.
In addition, since the mouth of the container body and the lid are screwed together, there is room for improvement in the mounting operation.

  Therefore, the present invention can release the pressure to the outside when the internal pressure of the container is increased, the mounting operation of the container body and the lid is easy, and the contents spill out when opened. It aims at providing the container which can prevent.

  The container according to the present invention includes a container main body that contains the contents, and a lid that covers the mouth portion of the container main body and seals the mouth portion. A body flange projecting toward the entire circumference is provided, and a lid flange projecting outward in the radial direction is provided over the entire circumference, and the lid flange and the body flange are provided. In the overlapped container, a detachable holder for holding the main body flange and the lid flange is provided, and the holder is provided around the radial direction of the main body flange and the lid flange. A peripheral wall portion, a lower wall portion projecting radially inward from the peripheral wall portion and disposed below the main body flange and extending along the main body flange; and a radially inner side from the peripheral wall portion Projecting toward the lid And an upper wall portion disposed along the lid flange, and the inner pressure of the container rises and the lid body is displaced upward so that the main body is displaced. The inside and outside of the container communicate with each other through a communication path formed between the flange and the lid flange.

In the container having the above-described configuration, the inside of the container communicates with the outside through the communication path formed between the main body flange and the lid body flange as the lid body is displaced upward due to an increase in the internal pressure of the container. Thereby, the pressure inside a container is open | released outside via a communicating path.
Further, in the container having the above-described configuration, the lid body is removed from the mouth of the container body by removing the holder from the main body flange and the lid body flange, and then the container body is opened when the container is opened. There is no need to grip firmly.

Further, in the container according to the present invention, the lower wall portion is disposed with a gap between the lower wall portion and the main body flange over the entire circumference, and relative upward movement of the lid body with respect to the container main body can be performed. It is preferable that it is allowed.
As a result, when the internal pressure of the container rises, the lid is pushed up by the internal pressure, the entire lid rises relative to the container body by the gap between the lower wall portion and the main body flange, and the lid The upper wall portion is pushed up by the flange, and the holder is raised. As a result, a gap (communication path) is formed over the entire circumference between the lid flange and the main body flange.

Further, in the container according to the present invention, the lid flange can be elastically deformed, and the lid flange is separated from the main body flange by elastic deformation of the lid flange accompanying an increase in internal pressure of the container, so that the communication path is formed. The structure formed may be sufficient.
Thereby, when the internal pressure of the container rises, the lid flange is elastically deformed by the internal pressure, the lid flange is separated from the main body flange, and a gap (communication path) is formed between the lid flange and the main body flange. . And if the internal pressure of a container falls, a cover body flange will be decompress | restored by elasticity and a cover body flange will closely_contact | adhere to a main body flange.

Further, in the container described above, the lower surface of the upper wall portion is in close contact with the upper surface of the lid flange, and a recess is formed in the lower surface of the upper wall portion. It is preferable that the lid flange is separated from the main body flange to form the communication path at the position of the recess by deformation.
As a result, when the internal pressure of the container rises, the lid flange is elastically deformed by the internal pressure, and the portion of the lid flange that faces the recess is separated from the main body flange, and a gap is formed between the lid flange and the main body flange. (Communication passage) is formed. At this time, portions of the lid flange other than the portion facing the recess are in close contact with the lower surface of the upper wall portion. That is, since only a part of the lid flange in the circumferential direction is separated from the main body flange, the communication path formed when the internal pressure is increased is narrowed. Therefore, when the internal pressure of the container rises and the communication path is formed, the contents are unlikely to leak (spout) from the communication path, and a rapid decrease in internal pressure is suppressed.

According to the container of the present invention, when the internal pressure of the container increases, the pressure can be released to the outside. Thereby, even when the internal pressure of the container is increased, it is possible to prevent the contents from being inadvertently scattered to the outside of the container or the lid from being removed and the container being opened.
In addition, the lid can be easily attached to the container body, and this attachment operability can be improved.
Furthermore, since it is not necessary to strongly hold the container body when the container is opened, the opening operation can be performed without deforming the container body, and the contents in the container body can be prevented from spilling when opened. .

It is a half sectional view of a container for explaining a 1st embodiment of the present invention. It is a top view of the container for demonstrating the 1st Embodiment of this invention. It is sectional drawing between AA shown in FIG. It is a half sectional view of a container for explaining a 2nd embodiment of the present invention. It is a top view of the container for demonstrating the 2nd Embodiment of this invention. It is sectional drawing between BB shown in FIG. It is sectional drawing between CC shown in FIG. It is a half sectional view of a container for explaining a 3rd embodiment of the present invention. It is a fragmentary sectional view of the container for demonstrating the 3rd Embodiment of this invention. It is a fragmentary sectional view of the container for explaining the modification of the present invention.

  Hereinafter, first to third embodiments of a container according to the present invention will be described with reference to the drawings.

[First Embodiment]
First, the container 1 which concerns on 1st Embodiment is demonstrated based on FIGS. 1-3.
A chain line O shown in FIG. 1 indicates a central axis of the container 1 and is hereinafter referred to as an “axis O”. A direction along the axis O is referred to as an “axial direction”, a direction orthogonal to the axis O is referred to as a “radial direction”, and a direction around the axis O is referred to as a “circumferential direction”. Further, the lid 3 side (upper side in FIG. 1) viewed from the container body 2 is “upper”, and the opposite side (lower side in FIG. 1) is “lower”.

  As shown in FIG. 1 and FIG. 2, the container 1 includes a container main body 2 that stores contents (not shown), and a lid 3 that covers the mouth 20 of the container main body 2 and seals the mouth 20. And the annular holder 4 that holds the body flange 23 of the container body 2 and the lid flange 32 of the lid 3 that are superposed on each other over the entire circumference.

  The container body 2 is a bottomed cylindrical cup whose upper end is opened. As a general configuration, the container body 2 includes a cylindrical barrel portion 21 extending along the axial direction with the axis O as a central axis, and a barrel The bottom part 22 provided in the lower end part of the part 21, the mouth part 20 provided in a row by the upper end part of the trunk | drum 21, and the main body flange 23 protruded toward the radial direction outer side from the mouth part 20 are provided. .

  The trunk | drum 21 is a taper-shaped cylindrical part gradually diameter-reduced as it goes below. Convex ribs 24 extending in the axial direction are intermittently disposed in the circumferential direction on the outer peripheral surface of the upper end portion of the body portion 21. The convex ribs 24 can be omitted. The bottom portion 22 is a bottom plate that closes the lower end of the body portion 21 and has a spherical shape that bulges upward. The mouth portion 20 is a straight cylindrical portion that is erected on the upper end portion of the trunk portion 21 and has a circular shape in a cross-sectional view, and extends along the axial direction with the axis O as the central axis.

  As shown in FIG. 3A, the main body flange 23 is an annular flange portion provided around the entire periphery of the outer periphery of the mouth portion 20. More specifically, the main body flange 23 is a plate portion formed in a step shape that is stepped downward in the radial direction. As a schematic configuration, the main body flange 23 protrudes radially outward from the upper end portion of the mouth portion 20. The upper step portion 25, a step portion 26 that hangs down from the outer edge of the upper step portion 25, and a lower step portion 27 that protrudes radially outward from the lower end of the step portion 26. The upper step portion 25 and the lower step portion 27 are each an annular flat plate portion arranged perpendicular to the axis O shown in FIG. 1, and the step portion 26 has a common axis as the axis O shown in FIG. It is a cylindrical portion disposed coaxially with the portion 20.

As shown in FIG. 1 and FIG. 2, the lid body 3 is a top-like cylindrical top lid having an open lower end. As a schematic configuration, the top wall portion 30 disposed perpendicular to the axis O is used. A cylindrical peripheral wall portion 31 depending from the outer edge of the top wall portion 30, a lid flange 32 projecting radially outward from the lower end of the peripheral wall portion 31, and a lower surface of the inner peripheral portion of the lid flange 32 And a fitting cylinder portion 33 that is suspended from the inside of the mouth portion 20 of the container body 2.
The top wall portion 30 is a flat plate portion having a circular shape in plan view, and is disposed above the mouth portion 20 of the container body 2. The peripheral wall portion 31 is a tapered cylindrical portion that is gradually expanded in diameter as it goes downward.

  As shown in FIG. 3A, the lid flange 32 is an annular flange portion that is provided around the entire outer periphery of the peripheral wall portion 31. The lid flange 32 is formed along the upper surface of the main body flange 23 and overlapped with the upper surface of the main body flange 23, and the lid flange 32 and the main body flange 23 are in close contact with each other. More specifically, the lid flange 32 is a plate portion formed in a step shape that is stepped downward in the radial direction, like the main body flange 23, and the schematic configuration thereof is the lower end of the peripheral wall portion 31. An upper step portion 35 protruding radially outward from the upper portion, a step portion 36 depending from the outer edge of the upper step portion 35, and a lower step portion 37 protruding radially outward from the lower end of the step portion 36.

  The upper step portion 35 and the lower step portion 37 are each an annular flat plate portion disposed perpendicular to the axis O shown in FIG. 1, and the step portion 36 is fitted with the axis O shown in FIG. 1 as a common axis. This is a cylindrical portion disposed coaxially with the combined tube portion 33. The upper stage portion 35 of the lid flange 32 is superposed on the upper surface of the upper stage portion 25 of the main body flange 23, and the upper stage portions 25 and 35 are in close contact with each other. Further, the stepped portion 36 of the lid flange 32 is provided around the outer periphery of the stepped portion 26 of the main body flange 23. The inner diameter of the stepped portion 36 of the lid flange 32 is larger than the outer diameter of the stepped portion 26 of the main body flange 23, and the inner peripheral surface of the stepped portion 36 of the lid flange 32 and the outer peripheral surface of the stepped portion 26 of the main body flange 23. A gap 10 is formed around the entire circumference. Further, the lower step portion 37 of the lid flange 32 is superposed on the upper surface of the lower step portion 27 of the main body flange 23, and the lower step portions 27 and 37 are in close contact with each other.

  The fitting tube portion 33 is a cylindrical tube portion that hangs down from the lower surface of the upper stage portion 35 of the lid flange 32 described above. The fitting tube portion 33 is connected to the mouth portion 20 of the container body 2 with the axis O shown in FIG. It is arranged on the same axis. A concave groove 34 extending in the axial direction is formed on the outer peripheral surface of the fitting cylinder portion 33. One or more concave grooves 34 are formed, and a plurality of concave grooves 34 are preferably formed. The lower end of the concave groove 34 is opened toward the inside of the container 1.

  As shown in FIGS. 1 and 2, the holder 4 is an annular member that is attached to the main body flange 23 and the lid flange 32 that are overlaid as described above. It is a member that holds the flange 23 and the lid flange 32 from above and below and from the outside in the radial direction. More specifically, as a schematic configuration of the holder 4, an annular peripheral wall portion 40 that is provided over the entire circumference on the radially outer side of the main body flange 23 and the lid flange 32, and a diameter from an upper end portion of the peripheral wall portion 40. An annular upper wall portion 41 projecting inward in the direction and extending over the entire circumference of the peripheral wall portion 40, and projecting inward in the radial direction from the lower end portion of the peripheral wall portion 40 and the peripheral wall And an annular lower wall portion 42 extending over the entire circumference of the portion 40.

  As shown in FIG. 3A, the peripheral wall portion 40 is a cylindrical tube portion that extends along the axial direction with the axis O shown in FIG. 1 as the central axis. The inner diameter of the peripheral wall portion 40 is larger than the outer diameter of the main body flange 23 (lower step portion 27), and the gap 11 extends between the inner peripheral surface of the peripheral wall portion 40 and the outer edge surface of the main body flange 23. Is formed.

  The upper wall portion 41 is a plate portion disposed perpendicular to the axis O shown in FIG. 1, disposed above the lower step portion 37 of the lid flange 32, and along the lid flange 32. Extending over the entire circumference. The upper wall portion 41 is overlapped over the entire upper surface of the lower step portion 37 of the lid flange 32, and the upper wall portion 41 and the lower step portion 37 of the lid flange 32 are in close contact with each other.

  The lower wall portion 42 is a plate portion disposed perpendicularly to the axis O shown in FIG. 1, disposed below the main body flange 23, and all around the main body flange 23. It is extended. The lower wall portion 42 is disposed with a gap D between the lower wall portion 42 and the main body flange 23 over the entire circumference. That is, the distance L1 between the upper surface of the lower wall portion 42 and the lower surface of the upper wall portion 41 is the overlapping thickness of the overlapped main body flange 23 and lid flange 32 (from the lower surface of the main body flange 23 to the upper surface of the lid flange 32). The lower wall portion 42 is disposed at a distance from the main body flange 23. Further, on the upper surface of the lower wall portion 42, a concave groove 43 extending in the radial direction is intermittently formed in the circumferential direction. The concave groove 43 extends to the inner edge (tip) of the lower wall portion 42, and the radially inner end portion (end portion on the distal end side of the lower wall portion 42) of the concave groove 43 is the inner edge of the lower wall portion 42. The surface is open to the outside.

  As shown in FIGS. 1 and 2, the holder 4 is a tool that can be attached to and detached from the main body flange 23 and the lid flange 32, and a part of the holder 4 rotates toward the outer peripheral side. It is removable with. More specifically, the holder 4 has a configuration in which three arc members 44 to 46 are connected via hinges 47 and 47. That is, the holder 4 includes an intermediate arc member 44 and a pair of arc members 45 and 46 connected to both ends of the intermediate arc member 44 via hinges 47 and 47, respectively. The circular arc members 44 to 46 are combined to form an annular shape in plan view.

  The intermediate arc member 44 is a semicircular arc member having an arc angle of approximately 180 degrees, and the pair of arc members 45 and 46 are quarter arc members having an arc angle of approximately 90 degrees. The hinge 47 described above extends in the axial direction, and the pair of arc members 45 and 46 can rotate relative to the intermediate arc member 44 along a plane perpendicular to the axis O. ing. In addition, the holder 4 is provided with a connection mechanism 48 that connects the pair of arc members 45, 46 together to restrict the rotation of the pair of arc members 45, 46. The coupling mechanism 48 includes an engaging convex portion 48a projecting from an end of one arc member 45 of the pair of arc members 45, 46 (an end opposite to the hinge 47 side), and the other arc. And an operation plate 48b attached to the end of the member 46 (the end opposite to the hinge 47) so as to be rotatable around the hinge 48c. The operation plate 48b is formed with an engagement hole 48d into which the engagement protrusion 48a is fitted.

  Next, the operation of the container 1 having the above configuration will be described.

  First, in a state before the internal pressure of the container 1 rises, as shown in FIG. 3A, the main body flange 23 and the lid flange 32 are overlapped and closely in contact with each other. Since the main body flange 23 and the lid flange 32 are held by the holder 4 over the entire circumference, the gap between the main body flange 23 and the lid flange 32 is securely sealed. More specifically, the upper stage portion 35 of the lid flange 32 is in close contact with the upper surface of the upper stage portion 25 of the main body flange 23 and sealed, and the lower stage portion 37 of the lid flange 32 is the upper surface of the lower stage portion 27 of the main body flange 23. Closely sealed.

  On the other hand, when the internal pressure of the container 1 rises, the lid 3 is pushed up relative to the container body 2 by the internal pressure of the container 1 as shown in FIG. The entire lid 3 ascends relative to the container main body 2 by the gap D between the main body flange 23 and the main body flange 23. As a result, gaps 12 and 13 are formed over the entire circumference between the main body flange 23 and the lid flange 32, and a communication path 14 that communicates the inside and the outside of the container 1 is formed. Thus, the internal pressure inside the container 1 is released to the outside, and an increase in the internal pressure of the container 1 is suppressed.

  More specifically, when the entire lid body 3 rises relative to the container body 2 as the internal pressure of the container 1 increases, the upper stage portion 35 of the lid flange 32 moves away from the upper surface of the upper stage portion 25 of the body flange 23. A gap 12 is formed over the entire circumference between the upper step portions 25, 35, and the lower step portion 37 of the lid flange 32 is separated from the upper surface of the lower step portion 27 of the main body flange 23, and both lower step portions 27 are formed. , 37 is formed across the entire circumference. The above-described former (upper side) gap 12 communicates with the recessed groove 34 of the fitting tube portion 33, and is formed in the gap 10 between the stepped portion 26 of the main body flange 23 and the stepped portion 36 of the lid flange 32. Communicated. The latter (lower side) gap 13 is communicated with the gap 10 between the stepped portion 26 of the main body flange 23 and the stepped portion 36 of the lid flange 32, and the peripheral wall portion 40 and the main body flange 23 are connected to each other. Is communicated with the gap 11 between the two. Further, when the entire lid 3 rises relative to the container body 2 as the internal pressure of the container 1 increases, the upper wall portion 41 of the holder 4 is pushed up by the lower step portion 37 of the lid flange 32, and the lid 3. At the same time, the holder 4 rises. As a result, the lower wall portion 42 of the holder 4 comes into contact with the lower surface of the lower step portion 27 of the main body flange 23. At this time, the radially outer end of the concave groove 43 formed in the lower wall portion 42 (the end portion on the proximal end side of the lower wall portion 42) is in the gap 11 between the peripheral wall portion 40 and the main body flange 23. Communicated. Therefore, the above-mentioned concave grooves 34 and 43 and the gaps 10, 11, 12, and 13 form a communication path 14 that communicates the inside and the outside of the container 1. At this time, when the outer diameter of the lid flange 32 is made equal to the inner diameter of the peripheral wall portion 40 of the holder 4, the above-described communication path 14 can be reliably secured and the mounting state of the holder 4 is stabilized.

  When opening the container 1, first, the holder 4 is removed from the main body flange 23 and the lid flange 32. More specifically, first, the operating plate 48b is rotated around the hinge 48c to remove the engaging convex portion 48a from the inside of the engaging hole 48d and release the connecting mechanism 48. Subsequently, as shown in FIG. 2, the pair of arc members 45 and 46 are rotated around the hinges 47 and 47, respectively, and removed from the main body flange 23 and the lid flange 32. Next, the intermediate arc member 44 is separated from the main body flange 23 and the lid flange 32 while being separated toward the radially outer side (the upper side in FIG. 2).

Next, the lid 3 is removed from the container body 2. More specifically, the lid 3 is moved upward relative to the container body 2. Thereby, the fitting cylinder part 33 of the lid body 3 is pulled out from the mouth part 20 of the container main body 2, and the lid body 3 is removed from the container main body 2. At this time, since the operation is only to lift the lid 3, it is not necessary to strongly grip the body 21 of the container body 2, and it is only necessary to lightly grip the body 21 of the container body 2 so that the container body 2 does not fall down. .
The container 1 is opened by the above.
In order to seal the opened container 1 again, the above-described opening operation may be performed in reverse. That is, the lid 3 is put on the upper end of the container body 2 so that the fitting cylinder portion 33 is fitted inside the mouth portion 20, and the lid flange 32 is overlaid on the upper surface of the body flange 23. The holder 4 may be attached to the lid flange 32.

  According to the container 1 described above, when the internal pressure of the container 1 increases, the pressure can be released to the outside. Therefore, even when the internal pressure of the container 1 increases, the contents are inadvertently transferred to the outside of the container 1. It is possible to prevent the container 1 from being scattered by being scattered or being unsealed.

  Moreover, since the state which the body flange 23 of the container main body 2 and the cover body flange 32 of the cover body 3 overlap | superposed can be hold | maintained by mounting | wearing with the holder 4, it is excellent in mounting operability.

  Further, since it is not necessary to strongly grip the body 21 of the container body 2 when the container 1 is opened, the opening operation can be performed without deforming the body 21 of the container body 2. The contents can be prevented from spilling out.

  Further, in the container 1 described above, the entire lid body 3 rises as the internal pressure of the container 1 rises, and the gaps 12 and 13 are formed over the entire circumference between the main body flange 23 and the lid flange 32. The communication path 14 that communicates the inside and the outside of the container 1 is reliably formed, and the internal pressure of the container 1 can be reliably released.

[Second Embodiment]
Next, the container 101 which concerns on 2nd Embodiment is demonstrated based on FIGS.
In addition, about the structure similar to above-mentioned 1st Embodiment, the same code | symbol is attached | subjected and description is abbreviate | omitted.

  As shown in FIG. 4, the container body 2 is provided with a plate-shaped body flange 123. The main body flange 123 is an annular flat plate portion that protrudes radially outward from the upper end portion of the mouth portion 20 and extends over the entire circumference, and is arranged perpendicular to the axis O. It is installed.

  The lid 3 is provided with a flat lid flange 132 that can be elastically deformed. The lid flange 132 is an annular flat plate portion that projects from the lower end portion of the peripheral wall portion 31 of the lid body 3 toward the radially outer side and extends over the entire circumference. It is arranged vertically with respect to it. The lid flange 132 is superposed on the upper surface of the main body flange 123, and the lid flange 132 and the main body flange 123 are in close contact with each other.

  As shown in FIGS. 4 and 5, the holder 4 is provided with a pair of upper and lower wall portions (upper wall portion 141 and lower wall portion 142) that sandwich the main body flange 123 and the lid flange 132 from above and below. Yes. As shown in FIGS. 5, 6 (a), and 7 (a), the upper wall portion 141 is overlapped with the above-described lid flange 132 and overlapped with the upper surface of the lid flange 132. The separation portion 141B disposed above the lid flange 132 with a space therebetween is arranged in the circumferential direction, and the concave portion 141a is intermittently formed in the circumferential direction on the lower surface of the upper wall portion 141. Has been. Further, the lower wall portion 142 is superimposed on the main body flange 123 and is in close contact with the lower surface of the main body flange 123. In addition, a concave groove 43 extending in the radial direction is intermittently formed in the circumferential direction at a position corresponding to the above-described concave portion 141 a on the upper surface of the lower wall portion 142.

  Next, the operation of the container 101 having the above-described configuration will be described.

  When the internal pressure of the container 101 rises, as shown in FIGS. 6B and 7B, the lid body 3 is pushed up relative to the container body 2 by the internal pressure of the container 101, and the lid shown in FIG. The top wall portion 30, the peripheral wall portion 31, and the fitting cylinder portion 33 of the body 3 rise relative to the container body 2. At this time, as shown in FIG. 6B, the lid flange 132 is located between the upper wall portion 141 and the lower wall portion 142 at the position of the overlapping portion 141 </ b> A in the upper wall portion 141 of the holder 4. The upward displacement of the lid flange 132 is regulated by being sandwiched, and as shown in FIG. 7B, the upward displacement of the lid flange 132 is allowed by the concave portion 141a at the position of the separation portion 141B. For this reason, the cover flange 132 is elastically deformed as the peripheral wall portion 31 of the cover 3 rises, and the portion 132a of the cover flange 132 corresponding to the concave portion 141a is displaced upward from the upper surface of the body flange 123. To do. As a result, a gap 112 is formed between the main body flange 123 and the upper displacement portion 132a of the lid flange 132. The gap 112 communicates with the concave groove 34 of the fitting cylinder portion 33 and also communicates with the gap 11 between the peripheral wall portion 40 and the main body flange 123. Therefore, the above-mentioned concave grooves 34 and 43 and the gaps 11 and 112 form a communication path 114 that allows the inside and the outside of the container 101 to communicate with each other. As a result, the internal pressure inside the container 101 is released to the outside via the communication path 114, and the increase in the internal pressure of the container 101 is suppressed.

  Further, when the internal pressure of the container 101 is reduced, the lid 3 is restored to the original position by the elastic force of the lid flange 132. That is, as shown in FIGS. 6A and 7A, the top wall portion 30, the peripheral wall portion 31, and the fitting cylinder portion 33 of the lid body 3 shown in FIG. The lid body 132 descends relative to the main body 2, and the lid flange 132 is in close contact with the upper surface of the main body flange 123 over the entire circumference. Thereby, the gap between the lid flange 132 and the main body flange 123 is sealed.

  According to the container 101 described above, when the internal pressure of the container 101 is reduced, the lid flange 132 is restored by elasticity and the lid flange 132 is in close contact with the main body flange 123, so that the container 101 is stable when the internal pressure of the container 101 is reduced. Sealing performance can be exhibited.

Further, according to the container 101 described above, only the portion 132a of the lid flange 132 corresponding to the concave portion 141a is separated from the main body flange 123 to form the gap 112, so that the communication path 114 is narrowed. Therefore, when the internal pressure of the container 101 rises and the communication path 114 is formed, the contents are unlikely to leak (spout) from the communication path 114, and liquid leakage when the internal pressure increases can be prevented. In addition, since the communication path 114 formed when the internal pressure is increased is narrow, a rapid decrease in internal pressure can be suppressed.
By adjusting the fitting force between the fitting cylinder part 33 and the mouth part 20, the thickness of the lid flange 132, etc., the top wall part 30, the peripheral wall part 31 and the fitting cylinder part 33 of the lid body 3 The communication path 114 can be formed only by elastic deformation of the lid flange 132 without substantially rising.

[Third Embodiment]
Next, a container 201 according to a third embodiment will be described with reference to FIGS.
In addition, about the structure similar to the above-mentioned 1st, 2nd embodiment, the same code | symbol is attached | subjected and description is abbreviate | omitted.

  The container 201 shown in FIGS. 8 and 9 is configured such that the entire lid flange 232 is separated from the main body flange 223 by the elastic deformation of the lid flange 232 as the internal pressure of the container 201 increases, and a communication path 214 is formed.

  More specifically, as shown in FIG. 8, a flat plate-like main body flange 223 that protrudes outward in the radial direction is provided over the entire circumference at the lower end portion of the mouth portion 20 of the container main body 2. As shown in FIG. 9A, the main body flange 223 is formed with a concave groove 228 extending from the outer edge surface of the main body flange 223 to the lower surface. One end of the groove 228 is opened at the outer edge of the upper surface of the body flange 223, the other end of the groove 228 extends to the inner edge of the lower surface of the body flange 223, and the groove 228 communicates with the outside. Yes.

  As shown in FIG. 8, a curved plate-like lid flange 232 that protrudes radially outward is provided on the lower end portion of the peripheral wall portion 31 of the lid 3 over the entire circumference. The lid flange 232 includes an inner peripheral portion 232a that is bent outward from the lower end of the peripheral wall portion 31, an intermediate portion 232b that is inclined upward toward the radially outer side, and an outer peripheral portion 232c that is bent downward. It consists of. The lower end surface of the inner peripheral portion 232a is in close contact with the upper surface of the main body flange 223 over the entire periphery, and the gap between the lid flange 232 and the main body flange 223 is sealed. The upper end surface of the outer peripheral portion 232c is in close contact with the lower surface of the upper wall portion 141 of the holder 4 over the entire periphery, and the lower end surface of the outer peripheral portion 232c (the outer edge surface of the lid flange 232) is It is in contact with the upper surface of the outer periphery. Further, the lower end portion of the peripheral wall portion 31 of the lid body 3 is fitted to the outer periphery of the mouth portion 20 of the container body 2, and the inner peripheral surface of the lower end portion of the peripheral wall portion 31 extends over the outer peripheral surface of the mouth portion 20. And the space between the mouth portion 20 and the peripheral wall portion 31 is sealed.

  Next, the operation of the container 201 having the above configuration will be described.

  When the internal pressure of the container 201 rises, as shown in FIG. 9B, the lid 3 is pushed up relative to the container body 2 by the internal pressure of the container 201, and the top wall portion of the lid 3 shown in FIG. 30 and the peripheral wall part 31 rise relative to the container body 2. As a result, as shown in FIG. 9B, the lid flange 232 is elastically deformed with its outer peripheral portions (the lower end surface and the upper end surface of the outer peripheral portion 232 c) as fixed fulcrums, and the inner peripheral portion 232 a of the lid flange 232. Is displaced upward, and the lower end surface of the inner peripheral portion 232 a is separated from the upper surface of the main body flange 223. That is, in the longitudinal sectional view, the intermediate portion 232b and the inner peripheral portion 232a of the lid flange 232 rotate upward with the upper end portion of the outer peripheral portion 232c as a fulcrum as the peripheral wall portion 31 of the lid body 3 rises. Further, since the peripheral wall portion 31 of the lid 3 is formed in a tapered cylindrical shape, the inner peripheral surface of the lower end portion of the peripheral wall portion 31 is separated from the outer peripheral surface of the mouth portion 20 with the rise. As described above, a gap 210 communicating with the inside of the container 201 (the lid 3) is formed over the entire circumference between the lower end portion of the peripheral wall portion 31 and the mouth portion 20, and the main body flange 223 and the lid flange A gap 211 that communicates with the gap 210 and the groove 228 is formed over the entire circumference. The gaps 210 and 211 and the concave groove 228 form a communication path 214 that communicates the inside and the outside of the container 201. As a result, the internal pressure inside the container 201 is released to the outside through the communication path 214, and an increase in the internal pressure of the container 201 is suppressed.

  Further, when the internal pressure of the container 201 decreases, the lid 3 is restored to the original position by the elastic force of the lid flange 232 as shown in FIG. 9A, and the bottom of the inner peripheral portion 232 a of the lid flange 232 is lowered. The end surface is in close contact with the upper surface of the main body flange 223, and the inner peripheral surface of the lower end portion of the peripheral wall portion 31 of the lid 3 is in close contact with the outer peripheral surface of the mouth portion 20.

  According to the container 201 described above, when the internal pressure of the container 201 decreases, the lid flange 232 is restored by elasticity, the inner peripheral portion 232a of the lid flange 232 is in close contact with the main body flange 223, and the peripheral wall portion of the lid 3 Since the lower end portion of 31 is in close contact with the mouth portion 20, stable sealing performance can be exhibited when the internal pressure of the container 201 is reduced.

  Further, in the container 201 described above, the entire lid flange 232 is elastically deformed as the internal pressure of the container 201 rises, so that gaps 210 and 211 that connect the inside of the container 201 and the groove 228 are formed over the entire circumference. Therefore, the internal pressure of the container 201 can be reliably released.

As mentioned above, although embodiment of the container concerning this invention was described, this invention is not limited to above-described embodiment, In the range which does not deviate from the meaning, it can change suitably.
For example, as shown in FIG. 10, the upper end of the recessed groove 34 does not extend to the upper end of the fitting cylinder part 33 and stops at the position of the intermediate part in the axial direction of the fitting cylinder part 33. The configuration may be such that the outer peripheral surface of the upper end portion and the inner peripheral surface of the upper end portion of the mouth portion 20 are in close contact with each other and sealed. In this case, the space between the main body flange 23 and the lid flange 32 may not be sealed, and may be between the upper step portion 25 of the main body flange 23 and the upper step portion 35 of the cover flange 32 or the lower step portion of the main body flange 23. A gap may be formed from the beginning between 27 and the lower stage portion 37 of the lid flange 32.

  Further, in the above-described embodiment, the holding tool including the intermediate arc member 44 and the pair of arc members 45 and 46 connected to both ends of the intermediate arc member 44 via hinges 47 and 47, respectively. 4, and the holder 4 can be removed by rotating the pair of arc members 45 and 46 around the hinges 47 and 47, respectively. It may be. For example, it may be a holder made up of a pair of arc members connected via hinges, or a splittable holder where both ends of a plurality of arc members are connected via connecting mechanisms 48, respectively. Also good. In the case of a disposable container, it may be a holder that can only be removed. For example, it may be a virgin seal-like holder in which the ends of a plurality of arc members are connected via weakened portions. . Further, instead of the annular holder 4, a C-shaped holder or a plurality of holders may be used at intervals in the circumferential direction.

  Further, in the above-described embodiment, the container body 2 is formed in a bottomed cylindrical cup shape, and the lid 3 is formed in a topped cylindrical inverted cup shape. The shapes of the container body and the lid can be changed as appropriate. For example, it may be a hemispherical (bowl-shaped) or rectangular tube-shaped container body, or a bottle-shaped container body. Further, it may be a hemispherical or flat lid, or may be a medium plug-like lid fitted inside the mouth of the container body.

  In addition, in the range which does not deviate from the main point of this invention, it is possible to replace suitably the component in above-mentioned embodiment with a well-known component, and you may combine the above-mentioned modification suitably.

DESCRIPTION OF SYMBOLS 1, 101, 201 Container 2 Container main body 3 Cover body 4 Holder 14, 114, 214 Communication path 20 Portion 23, 123, 223 Main body flange 32, 132, 232 Cover flange 40 Peripheral wall part 41, 141 Upper wall part 42 142 Lower wall portion 141a Concave portion

Claims (4)

A container main body that contains the contents, and a lid that covers the mouth of the container main body and seals the mouth,
The container body is provided with a body flange that protrudes radially outward, over the entire circumference,
The lid body is provided with a lid flange projecting outward in the radial direction over the entire circumference,
In the container in which the lid flange and the main body flange are overlapped,
A removable holder for holding the main body flange and the lid flange;
In the holder,
A peripheral wall portion provided on the outer side in the radial direction of the main body flange and the lid flange;
A lower wall portion protruding radially inward from the peripheral wall portion and disposed below the main body flange and extending along the main body flange;
An upper wall portion that protrudes radially inward from the peripheral wall portion and is disposed above the lid flange and extends along the lid flange;
Is provided,
When the internal pressure of the container rises and the lid body is displaced upward, the inside and outside of the container communicate with each other through a communication path formed between the main body flange and the lid flange. Container. The container according to claim 1,
The lower wall portion is arranged with a gap between the main body flange and the entire circumference,
The container is allowed to move upward relative to the container body of the lid. The container according to claim 1,
The lid flange is elastically deformable;
The container is characterized in that the lid flange is separated from the main body flange to form the communication path by elastic deformation of the lid flange accompanying an increase in internal pressure of the container. The container according to claim 3,
The lower surface of the upper wall portion is in close contact with the upper surface of the lid flange and a recess is formed on the lower surface of the upper wall portion,
The container is characterized in that the lid flange is separated from the main body flange at the position of the concave portion by elastic deformation of the lid flange accompanying an increase in internal pressure of the container, thereby forming the communication path.

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