JP7321616B1 - Containers with Lids and Lid Units - Google Patents

Abstract

An object of the present invention is to provide a container with a lid and a lid unit that can easily open the lid even when the container body is in a decompressed state and that can simplify the structure of the valve mechanism. An aspect of the present invention is a lidded container comprising a container body having an opening at the top and a lid unit attached to the opening of the container body, wherein the lid unit is detachable from the container body. a lid attached to the lid, an inner plug attached to the inside of the lid and having a vent, and a valve part provided between the vent of the inner plug and the lid for opening and closing the vent, When the lid is attached to the opening of the container, the lid is engaged with the container so that the valve portion and the vent are in close contact with each other, and the lid is removed from the state in which the lid is attached to the opening of the container. In the first step, the lid and the inner plug are separated by the operation of releasing the engagement of the lid with the container body, and the close contact between the valve portion and the vent is released, and the lid is further removed from the first step in the second step. is a lidded container in which both the lid and the inner plug are separated from the container. [Selection drawing] Fig. 2

Description

TECHNICAL FIELD The present invention relates to a lidded container and a lid unit, which are provided with a container body and a lid unit.

A container with a lid includes a cylindrical container made of stainless steel, for example, and a lid detachably attached to an opening of the container. Containers with lids are often used to hold hot items such as soup, rice, and side dishes. In a highly airtight container with a lid, when the temperature of a container placed with the lid closed decreases, the internal pressure of the container decreases, making it difficult to remove the lid.

Patent Literature 1 discloses a lidded container whose lid can be easily and safely removed. The lid of the lidded container includes an outer lid that covers the opening, an inner lid that is fitted inside the container body through the opening, and a lid that is attached to the outer periphery of the inner lid, and the container body and the inner lid. a sealing member that seals the space between them; an inner plug that is positioned in the center of the inner side of the outer lid and is fitted inside the inner lid; and a plug that closes the ventilation hole.

Patent document 2 discloses a lidded container that can remove the upper lid and the lower lid integrally and that can be reliably and easily released even if the inside of the container body is depressurized, which is hygienic and has high heat retention performance. is disclosed. This lidded container comprises a container body having an opening, a lower lid screwed into the container body, and an upper lid attached to the lower lid, wherein the lower lid is provided in the center and divides the inside and outside. An air hole that communicates with an elastic packing that abuts against the inner surface of the container body provided in the lower part, the upper lid has an air hole closing packing that has an elastic closing part at a position facing the air hole, and the inner wall of the lower lid or the One of the outer walls of the upper lid is provided with a protruding engagement portion, and the other has an open state storage portion for holding the engagement portion and holding the open state of the upper lid and a closed state storage portion for holding the closed state. A groove is provided.

JP 2020-186014 A JP 2014-091568 A

Lid-equipped containers equipped with a valve mechanism for ventilating the container body and returning the inside to normal pressure when the lid is opened are required to be easy to use, ensure reliable valve operation, and facilitate maintenance by simplifying the structure.

INDUSTRIAL APPLICABILITY The present invention provides a container with a lid and a lid unit that can easily open the lid even when the inside of the container body is in a decompressed state, is convenient to use, and can simplify the structure of the valve mechanism. intended to provide

One aspect of the present invention is a lidded container including a container body having an opening at the top and a lid unit attached to the opening of the container body, wherein the lid unit is a lid detachably attached to the container body. a body, an inner plug attached to the inside of a lid and having a vent, and a valve part provided between the vent of the inner plug and the lid for opening and closing the vent, wherein the opening of the container body When the lid is attached to the container, the valve portion and the vent hole are brought into close contact with each other due to the engagement operation of the lid to the container body, and the lid is removed from the state in which the lid is attached to the opening of the container. In the first stage, the lid is separated from the inner plug by the disengagement operation of the engagement mechanism of the lid to the container body, and the close contact between the valve portion and the vent hole is released, and the lid is further removed from the first stage. In the second stage of removal, the lidded container is such that both the lid and the inner plug are separated from the container.

According to such a configuration, since the inner plug is attached to the inside of the lid, the inner plug can be attached and detached together with the attachment and detachment of the lid. The engagement mechanism for attaching the lid to the container brings the valve portion and the ventilation hole into close contact with each other, and the engagement releasing operation by the engagement mechanism for removing the cover from the container closes the valve portion and the ventilation hole. comes off. Since the valve operation by contact and non-contact between the valve portion and the air hole is performed by the engagement and disengagement operations between the lid and the container body, the engagement for attaching and detaching the lid to and from the container body is performed. The coupling mechanism is also used as a mechanism for performing valve operation. Also, in the first stage of removing the lid, the air is ventilated from the ventilation hole and the inside of the container becomes normal pressure, and in the subsequent second stage, the lid and the inner plug can be removed together.

In the lidded container, the lid is detachably attached to the container by screwing, the inner plug is detachably attached to the lid by fitting, and the fitting of the inner plug to the lid is performed by the lid. It may be configured to allow a certain range of rotation along the axis of the rotation center of the screw engagement with the container body. In this way, the fitting of the inner plug to the lid allows the lid to rotate within a certain range around the axis, so that the inner plug remains in this certain range when the lid is removed. Only the lid can be rotated, and this causes the inner plug and the lid to separate, thereby breaking the close contact between the vent hole and the valve portion.

In the lidded container, the lid includes a lid portion, a lid screw portion that extends downward from the back surface of the lid portion in a cylindrical shape and is attached to the container body by screwing, and a lid portion that extends downward from the center of the back surface of the lid portion. The inner plug includes an inner plug main body that closes the opening of the container body, a seal portion that seals between the inner plug main body and the opening, and a cylinder extending upward from the inner plug main body. The vent hole is provided at a position that overlaps with the inside of the fitting cylinder portion of the inner plug main body when viewed in the vertical direction, and the valve portion may be provided at the tip of the fitting support portion. As a result, the lid is attached to and detached from the container by screwing, and the inner plug is attached and detached together with this attachment and detachment by screwing. Further, the screwing operation of the lid to the container causes the valve portion and the vent hole to be in close contact and non-close contact, and the screwing mechanism of the cover is also used as the valve operation mechanism.

In the lidded container, the inner plug may have an elastic member having a vent hole and being in contact with the valve portion. As a result, the elastic deformation of the elastic member increases the adhesion between the vent hole and the valve portion.

In the lidded container, the valve portion may have a convex portion that is loosely fitted into the vent hole. As a result, the convex portion of the valve portion is loosely fitted into the air hole, and the relative positioning of the lid and the inner plug is ensured.

Another aspect of the present invention is a lid unit attached to an opening of a container body having an opening at the top, comprising a lid body detachably attached to the container body, a lid body attached inside the lid body, and a An inner plug having pores and a valve portion provided between a vent of the inner plug and a lid for opening and closing the vent, wherein when the lid is attached to the opening of the container, the lid is closed. The valve portion and the vent hole are brought into close contact with each other by the engagement operation, and in the first step of removing the lid from the state in which the lid is attached to the opening of the container, the engagement disengagement operation of the lid with the container is performed. By separating the lid and the inner plug, the close contact between the valve portion and the vent hole is released, and in the second step in which the lid is further removed from the first step, both the lid and the inner plug are separated from the container. lid unit.

According to such a configuration, since the inner plug is attached to the inside of the lid, the inner plug can be attached and detached together with the attachment and detachment of the lid. The engagement mechanism for attaching the lid to the container brings the valve portion and the ventilation hole into close contact with each other, and the engagement releasing operation by the engagement mechanism for removing the cover from the container closes the valve portion and the ventilation hole. comes off. Since the valve operation by contact and non-contact between the valve portion and the air hole is performed by the engagement and disengagement operations between the lid and the container body, the engagement for attaching and detaching the lid to and from the container body is performed. The coupling mechanism is also used as a mechanism for performing valve operation. Also, in the first stage of removing the lid, the air is ventilated from the ventilation hole and the inside of the container becomes normal pressure, and in the subsequent second stage, the lid and the inner plug can be removed together.

According to the present invention, the lid can be easily opened even when the inside of the container body is in a decompressed state, and the lid body and the inner plug can be attached and detached together, which is convenient, and furthermore, the structure of the valve mechanism can be improved. It becomes possible to provide a lidded container and a lid unit that can be simplified.

It is a perspective view which illustrates the container with a lid which concerns on this embodiment. 1 is a cross-sectional view illustrating the configuration of a container with a lid according to this embodiment; FIG. 1 is an exploded perspective view (part 1) illustrating the configuration of a lid unit according to the present embodiment; FIG. 2 is an exploded perspective view (part 2) illustrating the configuration of the lid unit according to the embodiment; FIG. FIG. 3 is an exploded cross-sectional view illustrating the configuration of the lid unit according to the embodiment; FIG. 4 is a cross-sectional view illustrating a state in which the lid unit is attached to the container body; FIG. 4 is a cross-sectional view illustrating a first stage state in which the lid unit is opened; FIG. 11 is a cross-sectional view illustrating a second stage state in which the lid unit is opened; FIG. 4 is a cross-sectional view illustrating a state in which the lid unit is removed;

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to the drawings. In the following description, the same members are denoted by the same reference numerals, and the description of members that have already been described will be omitted as appropriate.

(Structure of lidded container)
FIG. 1 is a perspective view illustrating a lidded container according to this embodiment.
A lidded container 1 according to this embodiment includes a container body 10 and a lid unit 20 attached to the container body 10 . The container body 10 has a double structure (for example, a vacuum insulation structure) made of stainless steel, for example, and is provided in a cylindrical shape with a closed bottom 10b and an opening 10h at the top. In this embodiment, the side where the opening 10h of the container body 10 is provided is called "upper", and the side of the bottom 10b of the container body 10 is called "lower".

FIG. 2 is a cross-sectional view illustrating the configuration of the lidded container according to this embodiment.
As shown in FIG. 2, the lid unit 20 is detachably attached to the container body 10 by screwing. A male screw portion 10a is provided on the inner circumference of an opening 10h in the upper portion of the container body 10. As shown in FIG. The lid unit 20 is provided with a female threaded portion 212a corresponding to the male threaded portion 10a.

(Configuration of lid unit)
FIG. 3 is an exploded perspective view (No. 1) illustrating the configuration of the lid unit according to the present embodiment. FIG. 3 shows an exploded perspective view of the lid unit 20 as seen from below.
FIG. 4 is an exploded perspective view (No. 2) illustrating the configuration of the lid unit according to the present embodiment. FIG. 4 shows an exploded perspective view of the lid unit 20 viewed from above.
FIG. 5 is an exploded cross-sectional view illustrating the configuration of the lid unit according to this embodiment.

As shown in FIGS. 3-5. The lid unit 20 includes a lid body 21 detachably attached to the container body 10, an inner plug 22 attached inside the lid body 21 and having a vent hole 30h, a vent hole 30h of the inner plug 22 and the lid body. 21 and a valve portion 30 that opens and closes the vent hole 30h.

The lid body 21 includes a lid portion 211 covering the opening 10h, a lid screw portion 212 extending cylindrically downward from the back surface of the lid portion 211, and a fitting portion extending downward from the center of the back surface of the lid portion 211. and a support portion 213 . The lid screwing portion 212 is fixed to the rear surface of the lid portion 211 . The lid threaded portion 212 may be formed integrally with the lid body 21 . A female threaded portion 212 a to be screwed with the container body 10 is provided on the outer peripheral surface of the lid threaded portion 212 . The screwing of the lid threaded portion 212 to the container body 10 is performed by the upper outer periphery of the container body 10 and the surface of the lid threaded portion 212 facing the upper outer periphery of the container body 10 (the inner periphery of the lid threaded portion 212). ) may be performed between Alternatively, the lid screwing portion 212 may not be provided, and the lid 21 may be screwed to the container body 10 between the inner periphery of the lid portion 211 and the outer periphery of the container body 10 .

A fitting support portion 213 extending downward from the center of the back surface of the lid 21 is a support member for fitting the inner plug 22 to the lid 21 . The inner plug 22 includes an inner plug main body 221 that closes the opening 10h of the container body 10, a sealing portion 222 that seals between the inner plug main body 221 and the opening 10h, and a tubular shape extending upward from the inner plug main body 221. and a fitting tube portion 223 for fitting. The inner plug 22 is attached to the lid body 21 by fitting the fitting tube portion 223 to the fitting support portion 213 .

The fitting tube portion 223 is provided so as to penetrate the center portion of the inner plug main body 221 in the vertical direction. The inner plug main body 221 is provided in a shape that spreads radially from the fitting cylindrical portion 223 in, for example, a dome shape, and is arranged so as to cover the opening 10 h of the container body 10 . A seal portion 222 is attached to the periphery of the inner plug main body 221 . The seal portion 222 is made of an elastic member such as silicone rubber or elastomer. When the inner plug main body 221 is attached so as to cover the opening 10h, the seal portion 222 contacts the stepped portion 10d of the container body 10 to seal the edge of the inner plug main body 221 and the opening 10h.

A ventilation hole 30 h is provided below the fitting tube portion 223 . The ventilation hole 30h is provided at a position that overlaps with the inside of the fitting cylinder portion 223 of the inner plug main body 221 when viewed in the vertical direction. In this embodiment, an elastic ring member 225 having a vent hole 30h is provided. The elastic ring member 225 is made of an elastic member such as silicone rubber or elastomer. The valve mechanism of the vent hole 30h is configured by the contact and non-contact between the valve portion 30 and the elastic ring member 225, which will be described later.

The valve portion 30 is provided at the tip (lower end) of the fitting support portion 213 . When the lower surface 213a of the fitting support portion 213 is in close contact with the elastic ring member 225, the valve portion 30 blocks the vent hole 30h (closed state). On the other hand, if the lower surface 213a of the fitting support portion 213 is not in close contact with the elastic ring member 225, the force with which the valve portion 30 closes the air hole 30h is weakened, resulting in an open state.

The valve portion 30 preferably has a convex portion 31 that is loosely fitted into the air hole 30h (loosely fitted to the extent that the air hole 30h is not blocked). For example, when the convex portion 31 is viewed from the tip side, a portion of the outer periphery contacts the air hole 30h and the other portion does not contact the air hole 30h (a gap is formed between the air hole 30h). good. As a result, when the inner plug 22 is fitted to the lid 21, the relative positioning between the lid 21 and the inner plug 22 is ensured while providing an appropriate gap between the convex portion 31 and the vent hole 30h. can be done.

As shown in FIGS. 3 to 5, the lid unit 20 can be separated into an inner plug 22 and a lid body 21. As shown in FIGS. The lid threaded portion 212 and the fitting support portion 213 of the lid body 21 are connected (adhered, welded, fitted, screwed) to the lid portion 211 respectively. The seal portion 222 and the elastic ring member 225 attached to the inner plug 22 can be removed from the inner plug main body 221 . This improves maintainability (cleaning, replacement, etc.) of the seal portion 222 and the elastic ring member 225 .

(Assembly of lid unit)
To assemble the lid unit 20 , first, the sealing portion 222 is attached to the edge of the inner plug main body 221 , and the elastic ring member 225 is attached to the lower portion of the fitting cylindrical portion 223 . The elastic ring member 225 is fitted into a convex portion 223 a provided on the inner circumference of the lower portion of the fitting cylinder portion 223 . As a result, the central hole of the elastic ring member 225 becomes the air hole 30h.

Next, the lid 21 is fitted with the inner plug 22 . That is, the fitting cylindrical portion 223 of the inner plug 22 is fitted into the fitting support portion 213 of the lid 21 . The inner plug 22 is fitted with the lid 21 by fitting the fitting tubular portion 223 into the fitting support portion 213 from below the lid 21 . The fitting tube portion 223 is provided with an engaging piece 223d. On the other hand, the fitting support portion 213 is provided with a projection portion 213d. Since the engaging piece 223d has a spring property, when the engaging piece 223d climbs over the projecting portion 213d while the fitting cylindrical portion 223 is being fitted into the fitting support portion 213, the engaging piece 223d and the projecting portion 213d are separated from each other. Fitting is completed by catching with.

The inner plug 22 is fitted into the lid 21 by inserting it vertically into the lid 21 . Since the inner plug 22 is engaged with the engagement piece 223d and the protrusion 213d, when the inner plug 22 is pulled against the lid 21 and the engagement piece 223d climbs over the protrusion 213d, the inner plug 22 is pulled downward. The stopper 22 can be removed from the lid 21 .

A concave portion 214 is provided in a certain range in the circumferential direction on the outer peripheral surface of the fitting support portion 213 . The circumferential extent of the recess 214 is, for example, approximately 60°. On the other hand, a convex portion 224 extending vertically is provided on the inner peripheral surface of the fitting cylinder portion 223 . The width of the protrusion 224 in the circumferential direction is narrower than the range of the recess 214 in the circumferential direction. When the inner plug 22 is fitted into the lid body 21 , the convex portion 224 of the fitting cylindrical portion engages with the recessed portion 214 of the fitting support portion 213 . At this time, since the circumferential range of the concave portion 214 is wider than the circumferential width of the convex portion 224 , the inner plug 22 is rotatably fitted to the lid 21 . That is, the fitting of the inner plug 22 to the lid body 21 permits rotation within a certain range along the axis of the rotation center of the screw engagement of the lid body 21 to the container body 10 .

The rotatable angle of the inner plug 22 with respect to the lid 21 is the angle at which the convex portion 224 can move within the range of the concave portion 214 . For example, when the range of the concave portion 214 is 62° in the circumferential direction and the width of the convex portion 224 is 2° in the circumferential direction, the inner plug 22 is rotatably fitted to the lid body 21 in the range of 60°. combined.

Further, when the inner plug 22 is fitted to the lid 21 , the inner plug 22 can move slightly in the vertical direction with respect to the lid 21 . That is, when fitting the inner plug 22 into the lid body 21, fitting is performed by the engaging piece 223d getting over the protrusion 213d. When the inner plug 22 is further pushed from this position, the lower surface 213 a of the fitting support portion 213 contacts the elastic ring member 225 . In other words, the inner plug 22 is fitted so as to be vertically movable from the position where the engaging piece 223 d rides over the projection 213 d to the position where the lower surface 213 a of the fitting support portion 213 contacts the elastic ring member 225 .

A pedestal portion 221 a may be provided on the back surface of the lid portion 211 . The upper surface 223c of the fitting cylindrical portion 223 is set to contact the base portion 221a when the inner plug 22 is fitted into the lid body 21 and pushed in to some extent. This serves as a stopper so that the lower surface 213a of the fitting support portion 213 does not overly crush the elastic ring member 225 when the inner plug 22 is pushed. In addition, since the upper surface 223c of the fitting tube portion 223 abuts against the base portion 221a, stability when fitting the inner plug 22 to the lid body 21 can be obtained.

(Attachment of lid unit to container body)
FIG. 6 is a cross-sectional view illustrating a state in which the lid unit is attached to the container body.
As described above, the lid unit 20 is in a state in which the inner plug 22 is fitted to the lid body 21 . In order to attach the lid unit 20 to the container body 10 , the female threaded portion 212 a provided on the lid screwing portion 212 of the lid unit 20 is screwed with the male threaded portion 10 a provided on the opening 10 h of the container body 10 .

As the lid unit 20 is screwed into the opening 10h of the container body 10 in this state, the sealing portion 222 provided on the edge of the inner plug main body 221 eventually comes into contact with the stepped portion 10d of the container body 10, and the inner plug main body A space between 221 and the opening 10h is sealed. A pressing piece 212b is provided on the lid screwing portion 212 so that the pressing piece 212b presses the seal portion 222 from above the edge of the inner plug main body 221 when the lid unit 20 is screwed to the container body 10. can be Thereby, the sealing force by the seal portion 222 can be enhanced. Alternatively, the sealing portion 222 may be pressed by the lower end face of the lid screwing portion 212 .

In the lid unit 20, the lid body 21 and the inner plug 22 are fitted together so as to be movable within a certain range in the rotational direction. When the seal portion 222 comes into contact with the stepped portion 10d and adheres thereto, the rotation of the inner plug 22 is resisted by the resistance due to the close contact. If the lid 21 is further rotated in this state, a relative positional deviation in the rotational direction occurs between the inner plug 22 and the lid 21 (this deviation is hereinafter also referred to as "rotational deviation of the lid"). Due to the occurrence of lid rotation deviation in the closing direction of the lid unit 20, the lid body 21 presses the inner plug 22 from above. That is, due to this lid rotation deviation, the amount of downward movement of the lid 21 becomes greater than the amount of downward movement of the inner plug 22 due to screwing, and as a result, the lid 21 presses the inner plug 22 from above. will do.

Further, by the action of the lid 21 pressing the inner plug 22 from above, the lower surface 213a of the fitting support portion 213 is brought into close contact with the elastic ring member 225, and the air hole 30h is sealed by the valve portion 30. As shown in FIG.

Lid rotation deviation in the closing direction of the lid unit 20 is regulated at a position where the convex portion 224 of the fitting cylindrical portion 223 abuts one end of the concave portion 214 of the fitting support portion 213 . When the lid unit 20 is further closed from this position, the lid body 21 rotates together with the inner plug 22 . By tightening the lid unit 20 until the seal portion 222 is crushed to some extent, the attachment of the lid unit 20 is completed. When the lid unit 20 is attached, tight contact between the inner plug body 221 and the opening 10h is ensured by the tight contact of the seal portion 222 to the stepped portion 10d, and tight contact of the valve portion 30 to the air hole 30h allows communication. Sealability of the pores 30h is ensured.

(Removal of lid unit from container body)
Next, removal of the lid unit 20 from the container body 10 will be described.
FIG. 7 is a cross-sectional view illustrating a first stage state in which the lid unit is opened.
FIG. 8 is a cross-sectional view illustrating a second stage state in which the lid unit is opened.
FIG. 9 is a cross-sectional view illustrating a state in which the lid unit is removed.
When the lid unit 20 is attached to the container body 10, the sealing portion 222 maintains the airtightness between the inner plug 22 and the opening 10h, and the valve portion 30 maintains the airtightness of the air hole 30h. For example, when the object to be stored in the container body 10 is warm (soup, rice, side dishes, etc.) and it cools down, the internal pressure of the container body 10 becomes lower than the external pressure due to the temperature difference between the inside and outside of the container body 10. Sometimes. When the lid unit 20 is removed in this state, the following operation is performed.

FIG. 7 shows a state (first stage) in which the lid body 21 is opened from the closed state of the lid unit 20 and rotated within a certain range. In the range of the opening operation in the first stage, the lid rotation shift occurs in the opening direction from the closed state of the lid unit 20 , and the convex portion 224 of the fitting cylindrical portion 223 becomes the other side of the concave portion 214 of the fitting support portion 213 . This is the position where the end abuts, that is, the range until the lid rotation deviation in the direction in which the lid unit 20 is opened stops.

In the first stage when the lid unit 20 begins to be opened, the lid body 21 moves upward relative to the inner plug 22, so that the tight contact of the valve portion 30 with the air hole 30h is weakened. Since the inside of the container body 10 is in a decompressed state (negative pressure) with respect to the outside, the inner plug 22 is pulled while blocking the opening 10h by the negative pressure, and only the lid body 21 moves upward. It will be. As a result, the lid 21 and the inner plug 22 are separated, and a gap is generated between the lower surface 213 a of the fitting support portion 213 and the elastic ring member 225 . This is the opening operation of the valve portion 30, the vent hole 30h is opened, and the internal pressure of the container body 10 becomes normal pressure. In the first step of opening the lid unit 20, the valve portion 30 and the vent hole 30h are separated from each other, but the stepped portion 10d and the seal portion 222 remain in close contact. This minimizes the leakage of the contents when the lid unit 20 is opened, and enables smooth ventilation.

FIG. 8 shows the state of the second stage in which the lid body 21 is further opened from the first stage. The range of the opening operation in the second stage is the range in which the lid body 21 and the inner plug 22 are removed together after the first stage. In the second stage, since the cover 21 is rotated in the opening direction while the convex portion 224 of the fitting cylindrical portion 223 is in contact with the other end of the concave portion 214 of the fitting support portion 213, there is no lid rotation deviation. The inner plug 22 is also removed together with the lid 21 . In the second step of opening the lid unit 20, the valve portion 30 is separated from the vent hole 30h, and the stepped portion 10d and the seal portion 222 are also separated. As a result, the inner plug 22 is removed from the opening 10h.

FIG. 9 shows a state in which the lid unit 20 is completely removed. Since the lid 21 and the inner plug 22 are removed together in the opening operation of the second stage, the lid unit 20 can be removed from the container 10 by continuing the screwing opening operation (disengagement operation). . Since the lid body 21 and the inner plug 22 are removed together, it is convenient to use, and by removing the lid unit 20, the opening 10h of the container body 10 can be opened widely, and the contents (soup, rice, side dishes, etc.) put into the container body 10 can be stored. ) can be easily retrieved.

Further, for example, when the convex portion 31 is provided at the tip of the valve portion 30, the convex portion 31 is loosely fitted in the vent hole 30h. 21 and the inner plug 22 can be reliably aligned relative to each other, and the inner plug 22 can be prevented from rattling vertically and horizontally. Further, when the lid 21 is opened and closed, the convex portion 31 loosely fitted in the ventilation hole 30h serves as a guide to stabilize the vertical movement of the lid 21. As shown in FIG. Moreover, the strength when repeatedly opening and closing the lid body 21 can be increased.

(Another mechanism example of the opening operation of the first stage)
Here, another mechanism example of the first stage opening operation shown in FIG. 7 will be described.
In another example of the first-stage opening operation, an inclined surface 214s is provided on the upper surface of the surfaces forming the concave portion 214 of the fitting support portion 213 (see FIGS. 3 and 5). 214 s of inclined surfaces are the surfaces which inclined in the circumferential direction of the fitting support part 213. As shown in FIG.

On the other hand, the upper end surface 224a (see FIGS. 4 and 5) of the convex portion 224 is set so as to abut on the inclined surface 214s of the concave portion 214 when the inner plug 22 is fitted to the lid body 21 . As a result, the vertical distance between the lid 21 and the inner plug 22 changes depending on the contact position between the upper end surface 224a and the inclined surface 214s.

When the opening operation of the first stage is performed in the configuration in which the inclined surface 214s and the upper end surface 224a are provided, the convex portion 224 of the fitting cylindrical portion 223 may be displaced when the lid rotation shifts in the opening direction of the lid unit 20. The contact position between the upper end surface 224a and the inclined surface 214s changes until the fitting support portion 213 contacts the other end of the concave portion 214, and the lid body 21 is pressed upward. That is, the relative position between the upper end surface 224a and the inclined surface 214s changes according to the rotational position of the lid body 21 due to the rotation deviation of the lid body 21, and as the lid body 21 rotates in the opening direction, the lid body 21 is moved. The inner plug 22 is pushed up, and the lid body 21 and the inner plug 22 are gradually separated from each other. As a result, a gap is generated between the lower surface 213a of the fitting support portion 213 and the elastic ring member 225 (opening operation of the valve portion 30), the vent hole 30h is opened, and the internal pressure of the container body 10 becomes normal pressure.

Further, the mechanism by the contact between the upper end surface 224a of the convex portion 224 and the inclined surface 214s of the concave portion 214 works in the operation of closing the lid 21. As shown in FIG. When the lid body 21 is closed, the lid rotates in the opposite direction to when it is opened. Due to this lid rotation deviation, the relative position between the upper end surface 224a and the inclined surface 214s changes according to the rotational position of the lid 21. It is lowered in the direction of the stopper 22, and the lid body 21 and the inner stopper 22 gradually approach each other. As a result, the lower surface 213a of the fitting support portion 213 and the elastic ring member 225 are brought into close contact with each other, and the closing operation of the valve portion 30 is performed.

The mechanism by which the upper end surface 224a of the convex portion 224 and the inclined surface 214s of the concave portion 214 abut against each other is an engagement mechanism between the lid body 21 and the container body 10 (for example, a screwing mechanism between the male screw portion 10a and the female screw portion 212a). It plays a role of supplementing the valve operation of the valve portion 30 in the engagement operation and the disengagement operation by . In this mechanism, the concave portion 214 is formed by notching the side surface of the fitting support portion 213 to a certain depth in the vertical direction and only slanting the upper surface. It can be realized by a simple mechanism such as contact.

As described above, according to the present embodiment, the engagement mechanism for attaching the lid 21 to the container 10 brings the valve portion 30 and the air hole 30h into close contact with each other by the engagement operation, and the lid 21 is removed from the container 10. The close contact between the valve portion 30 and the vent hole 30h is released by the disengagement operation of the engagement mechanism. The valve operation due to close contact and non-close contact between the valve portion 30 and the vent hole 30h is the engagement operation (for example, attachment operation by screwing) and the engagement release operation (for example, by screwing) between the lid 21 and the container body 10. Therefore, the mechanism for attaching and detaching the lid 21 to and from the container 10 (for example, the mechanism for screwing the male screw portion 10a and the female screw portion 212a) is the mechanism for performing the valve operation. It will be used together. Further, in the first stage of removing the lid 21, the lid rotation deviation causes the vent hole 30h to open, and the inside of the container body 10 is ventilated to normal pressure. and the inner plug 22 can be removed together to widen the opening 10h.

As described above, according to this embodiment, the lid unit 20 can be easily opened even when the inside of the container body 10 is in a decompressed state with respect to the outside, and the lid body 21 and the inner plug 22 can be separated. To simplify the structure of the valve mechanism because the mechanism for engaging the lid unit 20 with the container body 10 is also used as the mechanism for operating the valve mechanism. becomes possible.

Although the present embodiment and its application examples have been described above, the present invention is not limited to these examples. For example, in the present embodiment, an elastic ring member 225 having a vent hole 30h is provided, and a configuration is shown in which the valve portion 30 is brought into close contact with the elastic ring member 225. A configuration in which the valve portion 30 is brought into close contact with the vent hole 30h may be employed. Further, although screwing is used as an example of the engagement mechanism between the lid body 21 and the container body 10, fitting other than screwing is also applicable. In addition, those skilled in the art may appropriately add, delete, or change the design of the above-described embodiments or their application examples, or may combine the features of the embodiments as appropriate. As long as it has the gist, it is included in the scope of the present invention.

The lidded container 1 and the lid unit 20 according to the present invention can be suitably used as various containers for liquids, powders, solids, creams, etc., in addition to soups and foods.

Reference Signs List 1 Container with lid 10 Container body 10a Male screw portion 10b Bottom 10d Step portion 10h Opening 20 Lid unit 21 Lid body 22 Inner plug 30 Valve portion 30h Vent hole 31 Convex portion 211 Lid Part 212 Lid threaded portion 212a Internal threaded portion 212b Pressing piece 213 Fitting support portion 213a Bottom surface 213d Protruding portion 214 Recessed portion 214s Inclined surface 221 Inner plug main body 221a Base portion 222 Seal portion 223 Fitting cylindrical portion 223a Projecting portion 223c Upper surface 223d Engaging piece 224 Projecting portion 224a Upper end surface 225 Elastic ring member

Claims (5)

A lidded container comprising a container body having an opening at the top and a lid unit attached to the opening of the container body,
The lid unit is
a lid detachably attached to the container;
an inner plug attached to the inside of the lid and having an air hole;
a valve portion provided between the air hole of the inner plug and the lid body for opening and closing the air hole;
with
The lid is
a lid;
a lid threaded portion that extends cylindrically downward from the back surface of the lid portion and is attached to the container body by screwing;
a fitting support portion extending downward from the center of the back surface of the lid;
has
The inner plug is
an inner plug main body that closes the opening of the container body;
a sealing portion that seals between the inner plug main body and the opening;
a fitting cylindrical portion that extends upward from the inner plug body in a cylindrical shape and fits with the fitting support portion;
has
The ventilation hole is provided at a position that overlaps with the interior of the fitting cylinder portion of the inner plug body when viewed in the vertical direction,
The valve portion is provided at a tip of the fitting support portion,
when the lid is attached to the opening of the container, the valve portion and the air hole are brought into close contact with each other by an engagement operation of the engagement mechanism of the lid with the container,
In the first step of removing the lid from the state in which the lid is attached to the opening of the container, the lid and the container are disengaged by the engagement mechanism of the lid and the container. The inner plug is separated and the close contact between the valve portion and the vent hole is released,
A container with a lid, wherein in a second step of further removing the lid from the first step, both the lid and the inner plug are separated from the container. The lid is detachably attached to the container by screwing,
The inner plug is detachably attached to the lid by fitting,
2. The lidded container according to claim 1, wherein fitting of said inner plug to said lid permits rotation within a certain range about an axis of a rotation center of screwing of said lid to said container. 2. The lidded container according to claim 1, wherein said inner plug has an elastic ring member having said vent hole and in contact with said valve portion. 2. The lidded container according to claim 1, wherein said valve portion has a convex portion loosely fitted into said vent hole. A lid unit attached to the opening of a container body having an opening at the top,
a lid detachably attached to the container;
an inner plug attached to the inside of the lid and having an air hole;
a valve portion provided between the air hole of the inner plug and the lid body for opening and closing the air hole;
with
The lid is
a lid;
a lid threaded portion that extends cylindrically downward from the back surface of the lid portion and is attached to the container body by screwing;
a fitting support portion extending downward from the center of the back surface of the lid;
has
The inner plug is
an inner plug main body that closes the opening of the container body;
a sealing portion that seals between the inner plug main body and the opening;
a fitting cylindrical portion that extends upward from the inner plug body in a cylindrical shape and fits with the fitting support portion;
has
The ventilation hole is provided at a position that overlaps with the interior of the fitting cylinder portion of the inner plug body when viewed in the vertical direction,
The valve portion is provided at a tip of the fitting support portion,
when the lid is attached to the opening of the container, the valve portion and the air hole are brought into close contact with each other by an engagement operation of the engagement mechanism of the lid with the container,
In the first step of removing the lid from the state in which the lid is attached to the opening of the container, the lid and the container are disengaged by the engagement mechanism of the lid and the container. The inner plug is separated and the close contact between the valve portion and the vent hole is released,
In a second step of further removing the lid from the first step, the lid and the inner plug are both separated from the container.

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