Lidded container

Abstract

The present invention provides a container with a lid, which has a low cost and simple structure, and can easily and safely remove the lid from the container body with respect to pressure changes in the container body. The lid (3) has a rib wall (8) that opposes the inner circumferential surface of a peripheral wall portion (3a) and protrudes from the lower surface of a top wall portion (3b) over the entire circumference, a groove portion (9) formed between the peripheral wall portion (3a) and the rib wall (8), a first venting recess (12) that recesses a portion of the bottom surface of the groove portion (9) in the radial direction, and a second venting recess (13) that recesses a portion of the rib wall (8) in the up-down direction. A water stop gasket (4) has a first elastic portion (4a) that fits into the groove portion (9), and a second elastic portion (4b) provided with a fitting recess (10) into which the rib wall (8) fits. The water stop gasket (4) is detachably mounted on the inner side of the lid (3) by fitting.

Description

Technical Field

[0001] This invention relates to containers with lids. Background Technology

[0002] For example, there is a lidded container that uses an inner lid and an outer lid to seal the opening in the container body (for example, see Patent Document 1 below).

[0003] Specifically, such a covered container comprises: a container body having an opening at its upper end; an inner cover that closes the opening when inserted into the inside of the container body; a water-stop gasket that seals the container body and the inner cover when installed on the inner cover; and an outer cover that is screwed onto the container body when covering the opening from the outside. Furthermore, the covered container is constructed such that a closure gasket (plug) on ​​the outer cover closes an air vent (vent) on the inner cover.

[0004] In such a covered container, when the outer lid is fitted to the container body, the sealing gasket abuts against the inner lid, thereby restricting the upward movement of the inner lid. Furthermore, in this covered container, when the outer lid is removed from the container body, the sealing gasket's closure of the air vent is released. Therefore, even if the pressure inside the container body decreases (becomes negative pressure), because external air is introduced through the air vent when the outer lid is removed, the pressure inside the container body remains the same as atmospheric pressure. Thus, the inner lid is not pulled inwards from the container body, allowing it to be easily removed.

[0005] Patent Document 1: Japanese Patent No. 5494717

[0006] However, in the existing covered containers mentioned above, the structure of sealing the opening in the container body using an inner and outer cover not only complicates the structure but also increases the cost due to the increase in the number of parts. Summary of the Invention

[0007] The present invention was made in view of the existing situation and aims to provide a lidded container that has a low cost and simple construction, and allows the lid to be easily and safely removed from the container body in relation to pressure changes within the container body.

[0008] To achieve the above objectives, the present invention provides the following solutions.

[0009] [1] A lidded container, characterized in that it comprises:

[0010] The container body has an opening at its upper end;

[0011] A lid, which is screwed on and detachably attached to the container body, thereby opening and closing the upper opening of the container body; and

[0012] A water-stopping gasket, which, when the lid closes the upper opening of the container body, adheres tightly to the entire circumference of the upper part of the container body, thus sealing the space between the container body and the lid.

[0013] The aforementioned cover includes: a peripheral wall portion facing the outer periphery of the container body; a top wall portion closing the upper part of the peripheral wall portion; a rib wall facing the inner periphery of the peripheral wall portion and protruding circumferentially from the lower surface of the top wall portion; a groove portion formed between the peripheral wall portion and the rib wall; a first venting recess portion formed by radially recessing a portion of the bottom surface of the groove portion; and a second venting recess portion formed by vertically recessing a portion of the rib wall.

[0014] The aforementioned water-stopping gasket has a first elastic portion that fits into the aforementioned groove and a second elastic portion that has a fitting recess for fitting into the aforementioned rib wall. The aforementioned water-stopping gasket is installed on the inner side of the aforementioned cover body by fitting and being detached.

[0015] [2] A lidded container, characterized in that it comprises:

[0016] The container body has an opening at its upper end;

[0017] A lid, which is screwed on and detachably attached to the container body, thereby opening and closing the upper opening of the container body; and

[0018] A water-stopping gasket, which, when the lid closes the upper opening of the container body, adheres tightly to the entire circumference of the upper part of the container body, thus sealing the space between the container body and the lid.

[0019] The aforementioned cover includes: a peripheral wall portion facing the outer periphery of the container body; a top wall portion closing the upper part of the peripheral wall portion; a rib wall facing the inner periphery of the peripheral wall portion and protruding circumferentially from the lower surface of the top wall portion; and a groove portion formed between the peripheral wall portion and the rib wall.

[0020] The aforementioned water-stopping gasket has: a first elastic portion that fits into the aforementioned groove; a second elastic portion having a fitting recess for fitting into the aforementioned rib wall; a first ventilation recess formed by radially recessing a portion of the surface of the first elastic portion facing the bottom of the aforementioned groove; and a second ventilation recess formed by vertically recessing a portion of the surface of the second elastic portion facing the aforementioned rib wall. The aforementioned water-stopping gasket is detachably installed on the inner side of the aforementioned cover body by fitting.

[0021] [3] The covered container described in [1] or [2] above is characterized in that when the pressure inside the container body rises or falls, a portion of the water-stopping gasket elastically deforms and allows ventilation between the outside and the inside of the container body through the first ventilation recess, the second ventilation recess and a portion of the fitting recess.

[0022] [4] The lidded container described in [1] or [2] above is characterized in that the second venting recess is provided at a position that overlaps with the first venting recess in the circumferential direction.

[0023] [5] The lidded container described in [1] or [2] above is characterized in that the first venting recess and the second venting recess are provided continuously.

[0024] [6] The covered container according to [1] or [2] above is characterized in that the water-stopping gasket has a third elastic portion, which is located on the opposite side of the first elastic portion, separated from the fitting recess.

[0025] [7] The covered container described in [1] or [2] above is characterized in that the first venting recess and the second venting recess are respectively provided at multiple circumferential locations.

[0026] [8] The lidded container described in [1] or [2] above is characterized in that the first venting recess is formed to be wider than the second venting recess.

[0027] [9] The lidded container described in [1] or [2] above is characterized in that the lid has an internal thread portion provided on the inner circumferential surface of the peripheral wall portion, and the container body has an external thread portion provided on the outer circumferential surface opposite to the peripheral wall portion. The lid is detachably installed on the container body by screwing the internal thread portion and the external thread portion together.

[0028] As described above, according to the present invention, it is possible to provide a lidded container that has a low-cost and simple construction, and the lid can be easily and safely removed from the container body relative to pressure changes within the container body. Attached Figure Description

[0029] Figure 1 This is an exploded perspective view showing the structure of the lidded container according to the first embodiment of the present invention.

[0030] Figure 2 It is a cross-sectional view showing a covered container with the lid installed relative to the container body.

[0031] Figure 3 Yes Figure 2 The enlarged cross-sectional view of the covered container is shown for the enclosed portion A.

[0032] Figure 4 This is a three-dimensional view showing the state of a waterproof gasket installed on the inside of the cover.

[0033] Figure 5 This is a top view showing the inside of the cover.

[0034] Figure 6 Yes Figure 5 The enclosed portion B shown is an enlarged top view of the cover.

[0035] Figure 7 Yes Figure 5 The enlarged perspective view of the cover shown is of the surrounding portion B.

[0036] Figure 8 It is in response to Figure 2 The diagram shown is an enlarged cross-sectional view of a covered container with enclosed portion A, illustrating the deformation state of the sealing gasket when the pressure inside the container body decreases.

[0037] Figure 9 Is as Figure 1 The modified example of the lidded container shown is for... Figure 2 The enlarged cross-sectional view of the covered container is shown for the enclosed portion A.

[0038] Figure 10 Is as Figure 1 The modified example of the lidded container shown is for... Figure 5 The enlarged perspective view of the cover shown is of the surrounding portion B.

[0039] Figure 11 Is as Figure 1 The modified example of the covered container shown is a top view of the inner side of the cover when the second venting recess is located 90° circumferentially relative to the first venting recess.

[0040] Figure 12 This is an exploded perspective view showing the structure of the lidded container according to the second embodiment of the present invention.

[0041] Figure 13 It is a cross-sectional view showing a covered container with the lid installed relative to the container body.

[0042] Figure 14 Yes Figure 13 The enclosed portion C shown is an enlarged cross-sectional view of a covered container.

[0043] Figure 15 This is a top view showing the inside of the cover.

[0044] Figure 16 This is a top view showing the structure of the waterproofing gasket.

[0045] Figure 17 Yes Figure 16 The enclosed portion D shown is an enlarged top view of the waterproofing liner.

[0046] Figure 18 Yes Figure 16 The enlarged perspective view of the surrounding portion D shown is a perspective view of the waterproofing liner.

[0047] Figure 19 It is in response to Figure 13 The diagram shown is an enlarged cross-sectional view of a covered container with enclosed portion C, illustrating the deformation state of the sealing gasket when the pressure inside the container body decreases.

[0048] Explanation of reference numerals in the attached figures

[0049] 1A, 1B...Lidded container; 2...Container body; 3...Lid; 3a...Peripheral wall; 3b...Top wall; 4...Waterproof gasket; 4a...First elastic part; 4b...Second elastic part; 4c...Elastic flange; 4d...Third elastic part; 5...External thread; 6...Internal thread; 7...Protrusion; 8...Rib; 9...Groove; 10...Matching recess; 11...Grip plate; 12...First venting recess; 13...Second venting recess; 14...First venting recess; 15...Second venting recess. Detailed Implementation

[0050] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0051] (First Embodiment)

[0052] First, as a first embodiment of the present invention, for example... Figures 1 to 8 The lidded container 1A shown is described below.

[0053] also, Figure 1 This is an exploded perspective view showing the structure of the lidded container 1A. Figure 2 This is a cross-sectional view showing the state in which the lidded container 1A is fitted with the lid 3 relative to the container body 2. Figure 3 Yes Figure 2 The enlarged cross-sectional view of the covered container 1A is shown in the enclosed portion A. Figure 4 This is a perspective view showing the state in which a water-stopping gasket 4 is installed on the inside of the cover 3. Figure 5 This is a top view showing the inside of the cover 3. Figure 6 Yes Figure 5 The enlarged top view of the cover 3 is shown for the enclosing portion B. Figure 7 Yes Figure 5 The enlarged perspective view of the cover 3 is shown for the surrounding portion B. Figure 8 It is in response to Figure 2 The figure shown is an enlarged cross-sectional view of the covered container 1A, which illustrates the deformation state of the water-stop gasket 4 when the pressure inside the container body 2 decreases.

[0054] like Figures 1-3 As shown, the lidded container 1A of this embodiment includes: a container body 2 with an opening at its upper end 2a; a lid 3 that opens and closes the upper opening 2b of the container body 2; and a water-stopping gasket 4 that seals the container body 2 and the lid 3.

[0055] The container body 2 is made of a heat-resistant resin such as polypropylene (PP), and has a generally circular bottom 2c, a cylindrical body portion 2d that rises from the outer periphery of the bottom 2c, and a generally cylindrical neck portion 2e with an inclined surface on the upper side of the body portion 2d. In addition, the upper end of the neck portion 2e serves as the upper end portion 2a of the container body 2, forming an upper opening portion 2b with a circular opening.

[0056] like Figures 1-5 As shown, the cover 3 is made of a heat-resistant resin such as polypropylene (PP), and has a peripheral wall portion 3a formed in a generally cylindrical shape, and a top wall portion 3b that closes the upper part of the peripheral wall portion 3a.

[0057] The cover 3 is attached to the container body 2 by screwing it on. Therefore, an external thread 5 is provided on the outer peripheral surface of the neck portion 2e (container body 2). On the other hand, an internal thread 6 is provided on the inner peripheral surface of the peripheral wall portion 3a (cover 3) which faces the outer peripheral surface of the neck portion 2e (container body 2) and engages with the external thread 5.

[0058] In addition, a plurality of protrusions 7 serving as anti-slip parts are provided on the outer peripheral surface of the peripheral wall portion 3a (cover 3). These protrusions 7 extend in the vertical direction and are arranged at equal intervals along the circumference of the peripheral wall portion 3a.

[0059] The water-stop gasket 4 is made of a heat-resistant, approximately circular, annular elastic component, such as silicone rubber. The water-stop gasket 4 is installed and removed freely on the inside of the cover 3 by fitting.

[0060] Therefore, the cover 3 has: a rib wall 8 facing the inner circumference of the peripheral wall portion 3a and protruding in a circular annular shape from the lower surface of the top wall portion 3b throughout the entire circumference; and a groove portion 9 formed in a circular annular shape between the peripheral wall portion 3a and the rib wall 8.

[0061] On the other hand, the water-stopping gasket 4 has: a first elastic portion 4a that fits into the groove portion 9; a second elastic portion 4b that extends downward from one end of the first elastic portion 4a and is provided with a fitting recess 10 for fitting into the rib wall 8; an elastic flange portion 4c that is opposite to the first elastic portion 4a and protrudes throughout the entire circumference of the outer peripheral surface of the second elastic portion 4b; and a third elastic portion 4d that is located on the side opposite to the first elastic portion 4a (inner peripheral side) across the fitting recess 10.

[0062] The water-stopping gasket 4 can be removed from the cover 3, allowing it to be cleaned separately from the cover 3, thus maintaining hygiene between the water-stopping gasket 4 and the cover 3. In addition, a gripping piece 11 is provided on the water-stopping gasket 4 protruding inward from the third elastic part 4d, which is used to easily remove it from the inside of the cover 3.

[0063] In the lidded container 1A of this embodiment, when the lid 3 is installed on the neck 2e of the container body 2, that is, when the lid 3 closes the upper opening 2b of the container body 2, the first elastic portion 4a of the water-stop gasket 4 elastically deforms and is in close contact with the bottom surface of the groove 9 of the lid 3 all around the circumference, and the elastic flange portion 4c of the water-stop gasket 4 elastically deforms and is in close contact with the upper end portion 2a of the container body 2 all around the circumference, thereby sealing the container body 2 and the lid 3 by means of the water-stop gasket 4.

[0064] However, in the lidded container 1A of this embodiment, as Figure 3 , Figure 6 as well as Figure 7 As shown, the cover 3 has: a first ventilation recess 12, which forms a portion of the bottom surface of the groove 9 recessed radially; and a second ventilation recess 13, which forms a portion of the rib wall 8 recessed vertically at a position where it overlaps with the first ventilation recess 12 circumferentially.

[0065] The first ventilating recess 12 is wider than the second ventilating recess 13. Furthermore, the second ventilating recess 13 is configured to be continuous with the first ventilating recess 12 at a position where it overlaps with the first ventilating recess 12 in the circumferential direction. That is, the second ventilating recess 13 is configured to be recessed from the front end (lower end) of the rib wall 8 to the base end (upper end).

[0066] The first venting recess 12 and the second venting recess 13 are respectively provided at multiple locations in the circumferential direction (two locations in this embodiment). In this case, the first venting recess 12 and the second venting recess 13 are preferably arranged at equal intervals in the circumferential direction of the groove 9. On the other hand, it is sufficient that the first venting recess 12 and the second venting recess 13 are configured to be provided at least one location in the circumferential direction of the groove 9.

[0067] In the lidded container 1A of this embodiment, which has the structure described above, when the pressure inside the container body 2 increases, the lid 3 is pushed upward.

[0068] As a result, a portion of the first elastic part 4a (water-stopping gasket 4) that is in close contact with the groove 9 of the cover 3 separates from the groove 9, thereby releasing the pressure inside the container body 2 to the outside through the first venting recess 12, the second venting recess 13 and a portion of the fitting recess 10, so that the pressure inside the container body 2 becomes the same as the external pressure (atmospheric pressure).

[0069] Therefore, in the lidded container 1A of this embodiment, when the pressure inside the container body 2 rises (becomes positive pressure), the external thread 5 and the internal thread 6 can be unscrewed between the container body 2 and the lid 3 without being affected, so that the lid 3 can be easily and safely removed from the container body 2.

[0070] Furthermore, situations where the pressure inside the container body 2 rises (becomes positive pressure) include, for example, when hot contents are placed inside the container body 2, or when the contents inside the container body 2 decompose and produce gas.

[0071] On the other hand, in the covered container 1A of this embodiment, such as Figure 8 As shown, when the pressure inside the container body 2 decreases, it becomes part of the first elastic part 4a, the second elastic part 4b and the third elastic part 4d (water-stopping gasket 4) to undergo elastic deformation and is pressed down towards the container body 2.

[0072] As a result, external air is introduced into the interior of the container body 2 through the first ventilation recess 12, the second ventilation recess 13, and a portion of the fitting recess 10, so that the pressure inside the container body 2 becomes the same as the external pressure (atmospheric pressure).

[0073] Therefore, in the lidded container 1A of this embodiment, when the pressure inside the container body 2 decreases (becomes negative pressure), the external thread 5 and the internal thread 6 can be unscrewed between the container body 2 and the lid 3 without being affected, so that the lid 3 can be easily and safely removed from the container body 2.

[0074] Furthermore, as a case where the pressure inside the container body 2 decreases (becomes negative pressure), examples include when hot contents are placed inside the container body 2 and then the contents cool down.

[0075] As described above, the lidded container 1A of this embodiment has a low-cost and simple structure, and the lid 3 can be easily and safely removed from the container body 2 in response to pressure changes within the container body 2.

[0076] Furthermore, the lidded container 1A of this embodiment is not limited to the structure described above, for example, as shown in the example. Figure 9 as well as Figure 10 As shown, the first ventilation recess 12 and the second ventilation recess 13 may also be discontinuous.

[0077] That is, the Figure 9 as well as Figure 10 The second ventilation recess 13 shown is configured to be recessed from the front end (lower end) of the rib wall 8 to the middle part above. Thus, the second ventilation recess 13 is separated from the first ventilation recess 12.

[0078] Furthermore, in the lidded container 1A of this embodiment, the first venting recess 12 and the second venting recess 13 may not be located in a position of circumferential overlap, but rather, for example, as shown in the figure below. Figure 11 The position shown is located at a position that has been shifted 90 degrees circumferentially in any direction.

[0079] Even with such a structure, it is possible to easily and safely remove the lid from the container body 2 by unscrewing the external thread 5 and the internal thread 6 between the container body 2 and the lid 3, regardless of whether the pressure inside the container body 2 increases (becomes positive pressure) or decreases (becomes negative pressure).

[0080] (Second Implementation)

[0081] Next, as a second embodiment of the present invention, for example, regarding... Figures 12-19 The lidded container 1B shown is described below.

[0082] also, Figure 12 This is an exploded perspective view showing the structure of the lidded container 1B. Figure 13 This is a cross-sectional view showing the state in which the lidded container 1B is fitted with the lid 3 relative to the container body 2. Figure 14Yes Figure 13 The enlarged cross-sectional view of the covered container 1B is shown in the enclosed portion C. Figure 15 This is a top view showing the inside of the cover 3. Figure 16 This is a top view showing the structure of the water-stopping gasket 4. Figure 17 Yes Figure 16 The enclosed portion D shown is an enlarged top view of the waterproofing liner 4. Figure 18 Yes Figure 16 The enlarged perspective view of the surrounding portion D shown is of the waterproofing gasket 4. Figure 19 It is in response to Figure 13 The enlarged cross-sectional view of the covered container 1B shown in the diagram (enclosed portion C) illustrates the deformation state of the sealing gasket 4 when the pressure inside the container body decreases. Furthermore, in the following description, descriptions of the same parts as those in the covered container 1A described above are omitted, and the same reference numerals are used in the accompanying drawings.

[0083] The lidded container 1B of this embodiment is obtained by providing the first ventilation recess 12 and the second ventilation recess 13, which are provided on the lid body 3 side, to the water-stopping gasket 4 side of the above-mentioned lidded container 1A.

[0084] Specifically, in the covered container 1B, such as Figures 12-19 As shown, the cover 3 has a structure in which the first ventilation recess 12 and the second ventilation recess 13 are omitted.

[0085] On the other hand, the water-stopping gasket 4 has: a first ventilation recess 14, which is formed by radially recessing a portion of the surface (upper surface) of the first elastic portion 4a facing the bottom of the groove 9; and a second ventilation recess 15, which is formed by recessing a portion of the surface (outer peripheral surface of the fitting recess 10) of the second elastic portion 4b facing the rib wall 8 at a position where it overlaps with the first ventilation recess 14 in the circumferential direction in the vertical direction.

[0086] The first ventilating recess 14 is wider than the second ventilating recess 15. Furthermore, the second ventilating recess 15 is configured to be continuous with the first ventilating recess 14 at a position where it overlaps with the first ventilating recess 14 in the circumferential direction.

[0087] The first venting recess 14 and the second venting recess 15 are respectively provided at multiple locations in the circumferential direction (two locations in this embodiment). In this case, the first venting recess 14 and the second venting recess 15 are preferably arranged at equal intervals in the circumferential direction of the water-stopping gasket 4. On the other hand, it is sufficient that the first venting recess 14 and the second venting recess 15 are configured to have at least one location in the circumferential direction of the water-stopping gasket 4.

[0088] In the lidded container 1B of this embodiment, which has the structure described above, when the pressure inside the container body 2 increases, the lid 3 is pushed upward.

[0089] As a result, a portion of the first elastic part 4a (water-stopping gasket 4) that is in close contact with the groove 9 of the cover 3 separates from the groove 9, thereby releasing the pressure inside the container body 2 to the outside through the first venting recess 12, the second venting recess 13 and a portion of the fitting recess 10, so that the pressure inside the container body 2 becomes the same as the external pressure (atmospheric pressure).

[0090] Therefore, in the lidded container 1B of this embodiment, when the pressure inside the container body 2 rises (becomes positive pressure), the external thread 5 and the internal thread 6 can be unscrewed between the container body 2 and the lid 3 without being affected, thereby making it easy and safe to remove the lid 3 from the container body 2.

[0091] On the other hand, in the lidded container 1B of this embodiment, such as Figure 19 As shown, when the pressure inside the container body 2 decreases, it becomes part of the first elastic part 4a, the second elastic part 4b and the third elastic part 4d (water-stopping gasket 4) to undergo elastic deformation and is pressed down towards the container body 2.

[0092] As a result, external air is introduced into the interior of the container body 2 through the first ventilation recess 14, the second ventilation recess 15, and a portion of the fitting recess 10, so that the pressure inside the container body 2 becomes the same as the external pressure (atmospheric pressure).

[0093] Therefore, in the lidded container 1B of this embodiment, when the pressure inside the container body 2 decreases (becomes negative pressure), the external thread 5 and the internal thread 6 can be unscrewed between the container body 2 and the lid 3 without being affected, thereby making it easy and safe to remove the lid 3 from the container body 2.

[0094] As described above, the lidded container 1B of this embodiment has a low-cost and simple structure, and the lid 3 can be easily and safely removed from the container body 2 in response to pressure changes within the container body 2.

[0095] Furthermore, the lidded container 1B of this embodiment is not limited to the structure described above, for example, it can be similar to the one described above. Figure 9 as well as Figure 10 The situation is the same as shown, and it can also be a structure in which the first ventilation recess 14 and the second ventilation recess 15 are discontinuous.

[0096] Furthermore, in the lidded container 1B of this embodiment, the first venting recess 14 and the second venting recess 15 may not be located in a position of circumferential overlap, but rather, for example, as described above. Figure 11 The position shown is located at a position that has been shifted 90 degrees circumferentially in any direction.

[0097] Even with such a structure, it is possible to easily and safely remove the lid from the container body 2 by unscrewing the external thread 5 and the internal thread 6 between the container body 2 and the lid 3, regardless of whether the pressure inside the container body 2 increases (becomes positive pressure) or decreases (becomes negative pressure).

[0098] Furthermore, the present invention is not limited to the structure of the above embodiments, and various modifications can be made without departing from the spirit of the present invention.

[0099] For example, there are no particular limitations on the appearance of the lidded container to which this invention is applied, and appropriate changes can be made according to size, appearance design, etc. Furthermore, this invention can also be applied to lidded containers that have a cold-keeping (or heat-keeping) function due to the container body having a vacuum-insulated structure.

Claims

1. A container with a lid, characterized in that, have: A container body, with an opening at its upper end; A lid, which is screwed on and detachably attached to the container body, thereby opening and closing the upper opening of the container body; and A water-stop gasket, wherein, with the upper opening of the container body closed by the cover, the water-stop gasket is tightly fitted to the entire circumference of the upper part of the container body, thereby sealing the space between the container body and the cover. The cover has: a peripheral wall portion facing the outer peripheral surface of the container body; a top wall portion closing the upper part of the peripheral wall portion; and a rib wall facing the inner peripheral surface of the peripheral wall portion and protruding from the lower surface of the top wall portion throughout the entire circumference. The groove is formed between the peripheral wall and the rib wall; a first ventilating recess is formed by radially recessing a portion of the bottom surface of the groove; and a second ventilating recess is formed by vertically recessing a portion of the rib wall. The water-stop gasket has a first elastic portion that fits into the groove and a second elastic portion that has a fitting recess for fitting into the rib wall. The water-stop gasket is installed on the inside of the cover body by fitting together. When the pressure inside the container body rises or falls, a portion of the water-stopping gasket elastically deforms and allows ventilation between the outside and the inside of the container body through the first ventilation recess, the second ventilation recess, and a portion of the fitting recess.

2. A container with a lid, characterized in that, have: A container body, with an opening at its upper end; A lid, which is screwed on and detachably attached to the container body, thereby opening and closing the upper opening of the container body; and A water-stop gasket, wherein, with the upper opening of the container body closed by the cover, the water-stop gasket is tightly fitted to the entire circumference of the upper part of the container body, thereby sealing the space between the container body and the cover. The cover has: a peripheral wall portion facing the outer peripheral surface of the container body; a top wall portion closing the upper part of the peripheral wall portion; and a rib wall facing the inner peripheral surface of the peripheral wall portion and protruding from the lower surface of the top wall portion throughout the entire circumference. and a groove formed between the peripheral wall portion and the rib wall. The waterproof gasket includes: a first elastic portion that engages with the groove; a second elastic portion having a recess for engaging with the rib wall; a first ventilation recess formed by a radially recessed portion of the surface of the first elastic portion facing the bottom of the groove; and a second ventilation recess formed by a vertically recessed portion of the surface of the second elastic portion facing the rib wall. The waterproof gasket is detachably mounted on the inside of the cover body through this engagement. When the pressure inside the container body rises or falls, a portion of the water-stopping gasket elastically deforms and allows ventilation between the outside and the inside of the container body through the first ventilation recess, the second ventilation recess, and a portion of the fitting recess.

3. The lidded container according to claim 1 or 2, characterized in that, The second ventilation recess is disposed at a position that overlaps with the first ventilation recess in the circumferential direction.

4. The lidded container according to claim 1 or 2, characterized in that, The first ventilation recess and the second ventilation recess are provided continuously.

5. The lidded container according to claim 1 or 2, characterized in that, The waterproofing gasket has a third elastic portion, which is located on the opposite side of the first elastic portion, separated by the fitting recess.

6. The lidded container according to claim 1 or 2, characterized in that, The first ventilation recess and the second ventilation recess are respectively provided at multiple locations in the circumferential direction.

7. The lidded container according to claim 1 or 2, characterized in that, The first ventilation recess is wider than the second ventilation recess.

8. The lidded container according to claim 1 or 2, characterized in that, The cover has an internal thread portion, which is disposed on the inner circumferential surface of the peripheral wall portion. The container body has an external threaded portion, which is disposed on the outer peripheral surface opposite to the peripheral wall portion. The cover can be easily installed onto the container body by screwing the internal threaded portion and the external threaded portion together.

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