CN111907918B - Container with lid - Google Patents

Abstract

The invention provides a container with a cover, which can easily and safely remove the cover. The container with a lid includes a container body having an opening at an upper portion thereof, and a lid body for opening and closing the opening, the lid body including: an outer cover covering the opening; an inner lid fitted into the inner side of the container body from the opening; a sealing member which seals between the container body and the inner lid in a state of being attached to an outer peripheral portion of the inner lid; the middle bolt is positioned at the inner central part of the outer cover and embedded into the inner side of the inner cover; and a plug body which is positioned at the center of the bottom surface of the middle plug and closes a vent hole arranged at the center of the inner cap, wherein the container with the cap is provided with a locking mechanism which is in threaded engagement with an internal thread part arranged at the inner periphery of the outer cap through an external thread part arranged at the outer periphery of the container body, thereby the outer cap is detachably mounted on the container body, and a locking feeling is given when the threaded engagement of the external thread part and the internal thread part is completed.

Description

container with lid

technical field

The present invention relates to containers with lids.

Background technique

For example, there is a lidded container provided with a heat-retaining/cold-retaining function by a container body having a vacuum insulation structure (for example, refer to Patent Document 1 below). Such a container with a lid adopts a structure in which an opening provided in a container main body is sealed using an inner lid and an outer lid.

Specifically, the container with a lid includes: a container body having an opening at its upper portion; an inner lid that closes the opening while being fitted into the inside of the container body from the opening; and a waterproof gasket (sealing member) that The container body is sealed between the container body and the inner cap in a state of being attached to the inner cap, and the outer cap is attached to the container body by screwing in a state of covering the opening from the outside. In addition, the container with a lid has a structure in which an air hole (ventilation hole) provided in an inner lid is closed by a closure gasket provided in the outer lid.

In a container with a lid, when the outer lid is attached to the container body, the closing washer abuts on the inner lid, thereby restricting the upward movement of the inner lid. In addition, in the container with a lid, when the outer lid is removed from the container main body, the closure of the air hole by the closing gasket is released. Thus, even when the pressure inside the container body decreases (becomes negative pressure), outside air will be introduced through the air hole after the outer cover is removed from the container body, so the pressure inside the container body is equal to atmospheric pressure. Therefore, the state in which the inner cap is pulled inside the container body can be released, and the inner cap can be easily detached from the container body.

Patent Document 1: Japanese Patent Laid-Open No. 2013-227034

However, in the above-mentioned conventional container with a lid, for example, since the temperature drops after putting high-temperature contents into the interior of the container body for a period of time, the pressure in the container body sealed by the inner cover and the outer cover decreases ( becomes negative pressure), and the inner cap is pressed against the container body.

At this time, the fastening force generated by the screwing between the container main body and the outer cover is reduced, so that the outer cover is easily loosened.

Contents of the invention

The present invention has been made in view of such conventional circumstances, and an object of the present invention is to provide a container with a lid that can prevent the lid from coming off and can remove the lid easily and safely.

In order to achieve the above objects, the present invention provides the following methods.

[1] A container with a lid comprising a container body having an opening at an upper portion, and a lid for opening and closing the opening, wherein:

The above-mentioned cover body has:

an outer cover covering the opening;

an inner cover fitted into the inner side of the container body from the opening;

a sealing member that seals between the container body and the inner lid;

a middle plug, which is located at the inner central part of the outer cover and embedded in the inner cover of the inner cover; and

a plug body, which is located at the central part of the bottom surface of the above-mentioned middle plug, and blocks the ventilation hole provided at the central part of the above-mentioned inner cover,

The container with a lid is provided with a locking mechanism, and the locking mechanism locks the outer cover by screwing the external thread portion provided on the outer peripheral portion of the container body and the internal thread portion provided on the inner peripheral portion of the outer cover. It is detachably attached to the container body, and provides a locking feeling when the screwing of the external thread portion and the internal thread portion is completed.

[2] The container with a lid according to the above [1], wherein the locking mechanism has an outer engaging convex portion provided on the inner lid and an inner engaging convex portion provided on the middle plug, and when When either one of the outer engaging convex portion and the inner engaging convex portion passes over the other, a locking feeling is given.

[3] The container with a lid according to the above [2], wherein the locking mechanism further includes an elastic piece provided on the inner lid and elastically deformable in a direction in which the diameter of the inner lid expands, The outer engaging convex portion is disposed on the elastic piece.

[4] The container with a lid according to any one of the above [1] to [3], wherein

After fitting the inner cap into the inside of the container body from the opening, and from the state where the middle plug is fitted inside the inner cap, by turning the outer cap in the closing direction, the outer threaded portion Screwed with the above-mentioned internal thread part, and become the state that the above-mentioned cover body is attached to the above-mentioned container main body,

From the state where the lid body is attached to the container body, by turning the outer lid in the opening direction, the screw engagement between the external thread portion and the internal thread portion is released, and the container body can be removed from the container body. Under the state of the above cover.

[5] The container with a lid according to the above [4], wherein the resistance when either one of the outer engaging convex portion and the inner engaging convex portion passes over the other is equal to the above-mentioned The resistance when the outer cover is turned in the opening direction is greater than the resistance when the outer cover is turned in the closing direction.

[6] The container with a lid according to the above [5], wherein the locking mechanism has a stopper protrusion provided on the inner cap, and when the inner engaging protrusion and the outer engaging protrusion When any one of them passes over the other, the outer engaging convex portion is engaged between the inner engaging convex portion and the stopper convex portion.

[7] The container with a lid according to the above [6], wherein the plug body is adjusted to the opening by turning the outer lid in the opening direction from the state where the lid body is attached to the container body. The abutment around the air hole is released, and the air hole is opened, and the outer cover is further rotated in the opening direction, whereby the stopper protrusion is in contact with the inner engaging protrusion, and the above-mentioned The inner cover rotates in the opening direction integrally with the outer cover.

[8] A container with a lid, comprising a container body having an opening at the top, and a lid for opening and closing the opening, wherein:

The above-mentioned cover body has:

an outer cover covering the opening;

an inner cover fitted into the inner side of the container body from the opening;

a sealing member that seals between the container main body and the inner cap in a state attached to the outer peripheral portion of the inner cap;

a middle plug, which is located at the inner central part of the outer cover and embedded in the inner cover of the inner cover; and

a plug body, which is located at the central part of the bottom surface of the above-mentioned middle plug, and blocks the ventilation hole provided at the central part of the above-mentioned inner cover,

The outer cap is detachably attached to the container body by screwing the external thread portion provided on the outer peripheral portion of the container body and the inner thread portion provided on the inner peripheral portion of the outer cap,

And in the state where the above-mentioned middle plug is inserted into the inside of the above-mentioned inner cover, by the engagement of the outer engaging part provided on the above-mentioned inner cover and the inner engaging part provided on the above-mentioned middle plug, the inner cover and the outer The cover rotates integrally.

[9] The container with a lid according to any one of the above [1] to [8], wherein the sealing member It is in a state of being in close contact with the protruding portion provided on the inner peripheral portion of the container body.

[10] The container with a lid according to any one of the above [1] to [9], wherein the container body has a vacuum insulation structure.

As described above, according to the present invention, it is possible to provide a device with a cover that prevents the cover from coming off and removes the cover easily and safely.

Description of drawings

Fig. 1 is an exploded perspective view of a container with a lid according to a first embodiment of the present invention viewed from above.

Fig. 2 is an exploded perspective view of the container with a lid shown in Fig. 1 viewed from below.

Fig. 3 is a cross-sectional view showing the structure of the container with a lid shown in Fig. 1 .

Fig. 4 is a perspective view of an outer cap and an inner plug included in the container with a lid shown in Fig. 1 viewed from the lower side.

Fig. 5 is a perspective view of an inner cap included in the container with a cap shown in Fig. 1 viewed from above.

Fig. 6 is a perspective view of an inner cap included in the container with a cap shown in Fig. 1 viewed from below.

Fig. 7 is a view from the upper side before the inner engaging protrusion passes over the outer engaging protrusion when the middle plug is turned in the closing direction relative to the inner lid in the locking mechanism of the container with a lid shown in Fig. 1 ; A horizontal section view of the state.

Fig. 8 is a view from the upper side of the locking mechanism provided in the container with a lid shown in Fig. 1, when the inner plug is rotated relative to the inner cap in the closing direction, when the inner engaging protrusion passes over the outer engaging protrusion; horizontal section view.

9 is a perspective view of an outer lid and an inner plug included in a container with a lid according to a second embodiment of the present invention viewed from below.

Fig. 10 is a perspective view of an inner cap included in the container with a cap shown in Fig. 9 viewed from above.

Explanation of reference signs

1A, 1B…container with lid; 2…container body; 2a…opening; 3…lid; 7…external thread; 12...Internal thread part; 13...Waterproof gasket (seal part); 18...Plug body; 19...Locking mechanism; 20...Inside engaging convex part; 21...Outside engaging convex part; 22...Stop convex part; 23 ...elastic piece; 26...outer engaging part; 27...inner engaging part; 28...linkage mechanism.

Detailed ways

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

(first embodiment)

First, as a first embodiment of the present invention, for example, a lidded container 1A shown in FIGS. 1 to 8 will be described.

In addition, FIG. 1 is an exploded perspective view of container 1A with a lid seen from the upper side. Fig. 2 is an exploded perspective view of the covered container 1A seen from the lower side. FIG. 3 is a cross-sectional view showing the structure of the container with a lid 1A. FIG. 4 is a perspective view of the outer lid 9 and the middle plug 11 included in the lidded container 1A viewed from the lower side. FIG. 5 is a perspective view of the inner lid 10 included in the lidded container 1A viewed from above. FIG. 6 is a perspective view of the inner lid 10 included in the lidded container 1A viewed from below. FIG. 7 shows a state before the inner engaging convex portion 20 passes over the outer engaging convex portion 21 when the inner plug 11 is rotated in the closing direction relative to the inner lid 10 when the locking mechanism 19 is provided in the container 1A with a lid. horizontal section view. 8 is a view from the upper side of the locking mechanism 19 of the container with a lid 1A, when the inner plug 11 is turned in the closing direction relative to the inner lid 10, and the inner engaging convex portion 20 passes over the outer engaging convex portion 21. A horizontal section view of the state.

As shown in FIGS. 1 and 2 , a lidded container 1A according to the present embodiment includes a container body 2 and a lid 3 that opens and closes an opening 2 a provided on the upper portion of the container body 2 . The container with a lid 1A is a thermos bottle capable of keeping food (contents) stored in the container body 2 warm by the container body 2 having a vacuum insulation structure.

In addition, the container with a lid 1A according to the present embodiment has a substantially cylindrical appearance as a whole, but the appearance of the container with a lid is not particularly limited, and can be appropriately changed according to dimensions, design, and the like. In addition, painting, printing, etc. may be performed on the outer peripheral surface of the container main body 2 .

As shown in FIGS. 1 , 2 , and 3 , the container body 2 has a metal outer container 4 and an inner container 5 made of, for example, stainless steel. For the container main body 2, in the inner side of the bottomed cylindrical outer container 4 with one end open, under the state that the bottomed cylindrical inner container 5 with one end opened is accommodated, the opening ends of each other are joined together, and these Between the outer container 4 and the inner container 5 is a heat insulating container provided with a vacuum heat insulating layer 6 .

The vacuum heat insulating layer 6 can be formed, for example, by sealing a degassing hole provided in the center of the bottom surface of the outer container 4 with solder in a chamber decompressed (evacuated) to a high vacuum.

By having such a vacuum insulation structure in the container main body 2, functions such as heat preservation and cold preservation can be provided. In addition, by having such a vacuum insulation structure in the container main body 2, it becomes a state in which tension is always applied to the outer container 4 and the inner container 5 by virtue of the difference between the internal pressure (vacuum pressure) and the external pressure (atmospheric pressure), so that these external containers The mechanical strength of the container 4 and the inner container 5 increases. Accordingly, even when the thickness of the outer container 4 and the inner container 5 is reduced, the rigidity of the container body 2 can be increased, and the weight of the container body 2 can be reduced.

The container main body 2 has a substantially circular bottom portion 2b, a substantially cylindrical body portion 2c erected from the outer periphery of the bottom portion 2b, and a substantially cylindrical neck portion whose diameter decreases on the upper side of the body portion 2c. 2d. Moreover, as the opening part 2a of the container main body 2, the upper end part of the neck opening part 2d is opened in circular shape. Moreover, the external thread part 7 is provided in the outer peripheral surface of the neck part 2d (outer container 4). Moreover, the ring-shaped extension part 8 is provided so that it may protrude in the diameter reduction direction over the whole circumference on the inner peripheral surface between the neck part 2d and the cylindrical part 2c.

The cover body 3 has: an outer cover 9 covering the opening 2a of the container body 2; an inner cover 10 fitted into the inside of the container main body 2 from the opening 2a; part of the state, sealing between the container body 2 and the inner cover 10; the middle plug 11, which is located in the inner central part of the outer cover 9, and embedded in the inner side of the inner cover 10; the plug body 18, which is located on the bottom surface of the middle plug 11 Central part, and make the ventilation hole 17 that is arranged on the central part of the bottom surface of the inner cover 10 blocked.

As shown in FIGS. 1 to 4 , the outer cover 9 is made of, for example, a heat-resistant resin such as polypropylene, and has a peripheral wall portion 9a formed in a substantially cylindrical shape matching the outer diameter of the cylindrical portion 2c of the container body 2; And the upper wall part 9b which closes the upper part of the peripheral wall part 9a.

On the inner peripheral surface of the peripheral wall portion 9a (outer cover 9), there are provided internal thread portions 12 which are screwed to the external thread portions 7 on both sides of the above-mentioned container main body. In the capped container 1A, the outer cap 9 is detachably attached to the container body 2 by screwing the external thread portion 7 and the internal thread portion 12 .

In the capped container 1A, the outer cap 9 is rotated clockwise (hereinafter referred to as "closing direction") relative to the container main body 2 while screwing the external thread portion 7 and the internal thread portion 12 . The outer cover 9 can be attached to the container main body 2 . On the other hand, from the state where the outer cap 9 is attached to the container body 2, the outer screw can be released by turning the outer cap 9 counterclockwise (hereinafter referred to as "opening direction") relative to the container body 2. Part 7 and the internal thread part 12 are screwed together, and the outer cover 9 is removed from the container main body 2 .

As shown in Figures 1 to 3, Figures 5 and 6, the inner cover 10 is made of, for example, a heat-resistant resin such as polypropylene, has a substantially circular bottom wall 10a, and is erected from the outer periphery of the bottom wall 10a. The substantially cylindrical peripheral wall part 10b. In addition, an annular upper flange portion 10c is provided on the upper end side of the outer peripheral surface of the peripheral wall portion 10b so as to protrude in a diameter-enlarging direction over the entire circumference.

A waterproof gasket 13 is detachably mounted on the outer periphery of the bottom surface of the inner cover 10 . The waterproof gasket 13 is an annular sealing member that seals between the container body 2 and the inner lid 10 , and is made of, for example, heat-resistant rubber such as silicone rubber or an elastic member such as an elastomer.

The inner cover 10 is provided with an annular lower flange portion 10d so as to protrude from the outer periphery of the bottom wall portion 10a in the direction of increasing diameter. The waterproof gasket 13 is fitted and fixed to the lower flange portion 10d over the entire circumference.

On the other hand, the waterproof gasket 13 can be detached from the lower flange portion 10d by elastically deforming (stretching) itself. Thereby, the inner cover 10 and the waterproof packing 13 can be washed separately, and the space between the inner cover 10 and the waterproof packing 13 can be kept hygienic.

In addition, an elastic flange portion 13 a is provided on the outer peripheral portion of the waterproof gasket 13 . The elastic flange portion 13 a has a shape bent and protruded downward from the upper end of the outer peripheral surface of the waterproof gasket 13 .

When the lid body 3 is attached to the container body 2, the waterproof gasket 13 elastically deforms the elastic flange portion 13a and is in close contact with the extension portion 8 of the container body 2 over the entire circumference. Thereby, the space between the container main body 2 and the inner lid 10 can be sealed by the waterproof gasket 13 .

As shown in FIGS. 1 to 4 , the middle plug 11 has, for example, a bottomed substantially cylindrical shape made of a heat-resistant resin such as polypropylene. The middle plug 11 is integrally attached to the central portion of the lower surface of the upper wall portion 9 b of the outer cover 9 by welding or the like. As a heat insulating layer, a heat insulating material 14 made of, for example, foamed urethane resin or the like is disposed inside the middle plug 11 . In addition, instead of the heat insulating material 14 mentioned above, air may be used as a heat insulating layer.

As shown in FIGS. 1 to 3 , 5 and 6 , the inner cover 10 is provided with a circular air hole 17 penetrating through the central portion of the bottom wall portion 10 a. On the other hand, a plug body 18 that closes the vent hole 17 is provided at the center of the bottom surface of the middle plug 11 .

The plug body 18 is made of, for example, an elastic body member such as rubber having heat resistance such as silicone rubber or an elastic body. The plug body 18 has: a protruding portion 18a whose central part is swollen into a dome shape; a flange portion 18b extending from the periphery of the protruding portion 18a in a direction in which the diameter expands; a cylindrical portion 18c protruding from the base of the flange portion 18b toward and The opposite side of the portion 18a protrudes in a cylindrical shape; and the annular groove portion 18d is formed by grooving the outer peripheral surface of the cylindrical portion 18c.

On the other hand, the middle plug 11 has: a fitting recess 11a in which a cylindrical portion 18c is fitted in the center of the bottom surface; It fits into the groove portion 18d. Thus, the plug body 8 is detachably attached to the central portion of the bottom surface of the middle plug 11 .

In the lid body 3 , when the lid body 3 is attached to the container body 2 , the protrusion 18 a of the plug body 18 elastically deforms and abuts on the periphery of the ventilation hole 17 , thereby closing the ventilation hole 17 . In addition, in the cover body 3, since the plug body 18 can be removed from the middle plug 11, and the middle plug 11 and the plug body 18 can be cleaned separately, it is possible to maintain hygiene between the above-mentioned middle plug 11 and the plug body 18.

As shown in Fig. 1, Fig. 2 and Fig. 4 to Fig. 8, the cover body 3 is equipped with a locking mechanism 19, and the locking mechanism 19 is provided between the external thread portion 7 of the above-mentioned container body 2 and the inside of the outer cover 9. When the screwing of the threaded portion 12 is completed, a locking feeling is given.

The locking mechanism 19 has an inner engagement protrusion 20 disposed on the middle plug 11 , an outer engagement protrusion 21 and a stop protrusion 22 disposed on the inner cover 10 .

The inner engaging protrusions 20 are provided at opposite positions on the outer peripheral surface of the middle plug 11 so as to extend vertically in the height direction of the middle plug 11 and protrude in a direction of increasing diameter. That is, two inner engaging protrusions 20 are provided on the outer peripheral surface of the middle plug 11 .

An outer engaging portion 21 is provided on the front end side of a pair of elastic pieces 23 provided on the peripheral wall portion 10 b of the inner cover 10 . The pair of elastic pieces 23 are provided at positions facing the peripheral wall portion 10b so as to be continuous with the peripheral wall portion 10b. Specifically, each elastic piece 23 is provided so as to extend upward from between the slits 24 that slit the periphery thereof. Thereby, the front end side of the elastic piece 23 can be elastically deformed in the direction of expanding the diameter.

The outer engaging convex portion 21 is provided so as to protrude from the inner peripheral surface on the front end side of the elastic piece 23 in a diameter-reducing direction. In addition, the outer engaging convex portion 21 has an inclined surface 21a whose slope gradually increases toward the side where the middle plug 11 is turned in the closing direction relative to the inner cover 10 .

The stopper protrusions 22 are provided at opposing positions on the inner peripheral surface of the peripheral wall portion 10 b (inner cover 10 ) so as to extend vertically in the height direction of the inner cover 10 and protrude in a diameter-reducing direction. That is, two stop protrusions 22 are provided on the inner peripheral surface of the inner cover 10 .

In addition, the stopper protrusion 22 is provided adjacent to the elastic piece 23 provided on the inner cover 10 on the side where the middle plug 11 is turned in the opening direction.

As shown in FIG. 7 , in the locking mechanism 19 , the outer lid 9 is rotated in the closing direction relative to the container main body 2 (clockwise in the figure), whereby the middle plug 11 is rotated in the closing direction relative to the inner lid 10 . At this time, the inner engaging convex portion 20 is in sliding contact with the inclined surface 21 a of the outer engaging convex portion 21 and elastically deforms the elastic piece 23 in the diameter-expanding direction. And, as shown in FIG. 8 , when the inner engaging convex portion 20 passes over the outer engaging convex portion 21 , the inner engaging convex portion 20 is engaged with the outer engaging convex portion 21 and the stopper convex portion 22 . state in between.

In the locking mechanism 19 , when such an inner engaging convex portion 20 gets over the outer engaging convex portion 21 , a locking feeling can be obtained. In addition, the strength of the locking feeling in the locking mechanism 19 can be adjusted by the shape, surface condition, material, etc. of the inner engaging convex portion 20 , the outer engaging convex portion 21 , and the elastic piece 23 . On the other hand, there may be no locking feeling at all. In addition, the elastic piece 23 is not limited to a structure extending upward from the space of the slit 24 that is grooved around it, and may be provided so as to be elastically deformable in the space of a pair of slits 24 juxtaposed to each other, for example. Structure. In addition, in the case of this structure, what is necessary is just to comprise so that the outer engaging convex part 21 may be provided in the center part of an elastic piece.

After the locking feeling is obtained, the outer cover 9 is further rotated in the closing direction relative to the container main body 2, whereby the inner cover 10 and the outer cover 9 are locked in a state where the stopper protrusion 22 abuts against the inner engaging protrusion 20 . Turn integrally in the closing direction. Thus, the lid body 3 can be attached to the container body 2 .

Here, even if the center of the inner cover 10 is installed at a position slightly deviated from the center of the container body 2, when the inner cover 10 and the outer cover 9 are integrally turned in the closing direction, the inner cover 10 is formed to be gentle along the direction. The form of the shape of the mortar-shaped overhanging part 8 is guided, and the inner cover 10 also moves in the direction coincident with the central axis. Thus, since the central axes of the container body 2 and the inner lid 10 coincide, the waterproof gasket 13 and the extension portion 8 are in close contact with each other without deviation over the entire circumference, and good waterproofness can be exhibited.

On the other hand, as shown in FIG. 8 , in the locking mechanism 19 , starting from the state where the cover body 3 is mounted on the container body 2 , by opening the outer cover 9 relative to the container body 2 in the opening direction (counterclockwise in the figure) direction) to rotate, thereby causing the middle plug 11 to rotate relative to the inner cover 10 in the opening direction. At this time, as shown in FIG. 7 , the elastic piece 23 is elastically deformed toward the diameter expansion direction, and the inner engaging convex portion 20 passes over the outer engaging convex portion 21 , thus forming the inner engaging convex portion 20 and the outer engaging convex portion. 21 is the state where the engagement is released.

In the locking mechanism 19, depending on the orientation of the gradient of the above-mentioned inclined surface 21a, the resistance when the inner engaging protrusion 20 moves beyond the outer engaging protrusion 21 in the opening direction is higher than that when the inner engaging protrusion 20 moves outward in the closing direction. Resistance when the protrusion 21 is engaged. Thereby, in a state where the cover body 3 is attached to the container main body 2 , the outer cover 9 is prevented from being unintentionally loosened from the container main body 2 .

In addition, in the locking mechanism 19 of the present embodiment, it is formed to give a locking feeling when the inner engaging convex portion 20 passes over the outer engaging convex portion 21 provided with the above-mentioned inclined surface 21a. Conversely, when the outer engaging convex portion 21 passes over the inner engaging convex portion 20 provided with an inclined surface, it is configured to give a locking feeling.

In the lidded container 1A of the present embodiment having the above configuration, the inner cap 11 is fitted inside the inner cap 10 after the inner cap 10 is fitted into the container body 2 from the opening 2a. Then, from this state, by turning the outer cover 9 in the closing direction, the external thread portion 7 and the internal thread portion 12 are screwed together.

Thus, the lid body 3 can be attached to the container body 2 . In addition, at this time, the plug body 18 abuts against the periphery of the vent hole 17, whereby the vent hole 17 is in a sealed (occluded) state. In addition, the waterproof gasket 13 is in close contact with the overhanging portion 8 over the entire circumference, whereby the space between the container main body 2 and the inner lid 10 is sealed by the waterproof gasket 13 .

On the other hand, from the state where the lid body 3 is attached to the container main body 2, by turning the outer lid 9 in the opening direction, the middle plug 11 is integrally rotated in the opening direction with respect to the inner lid 10 and the outer lid 9, and The screwing of the male thread part 7 and the female thread part 12 starts to be released.

In addition, at this time, the contact of the plug body 18 with the periphery of the vent hole is released, and the vent hole 17 is in an open state. Thereby, the pressure inside the container main body 2 is released through the vent hole 17, so the pressure inside the container main body 2 becomes the same pressure (atmospheric pressure) as the outside.

Then, from this state, by further turning the outer cover 9 in the opening direction, the stopper protrusion 22 abuts against the inner engaging protrusion 20 from the side opposite to that when turning in the closing direction. The inner cover 10 and the outer cover 9 are rotated in the opening direction integrally, and the tight contact state of the waterproof gasket 13 to the extension part 8 is released. In addition, when the screwing of the internal thread portion 7 and the external thread portion 12 is completely released, the lid body 3 can be detached from the container main body 2 .

And, even in the case where the waterproof gasket 13 and the protruding portion 8 are tightly adhered to each other by water sealing, the inner cover 10 and the outer cover 9 can be integrally rotated in the opening direction, so that the waterproof gasket 13 can be closed. The close contact with the protruding part 8 due to the water seal is released, and the lid body 3 is removed from the container main body 2 .

As described above, in the capped container 1A of the present embodiment, when the screwing of the external thread portion 7 provided on the container body 2 and the internal thread portion 12 provided on the outer cap 9 is completed by the locking mechanism 19 described above, , can bring a sense of locking. In addition, in a state where the lid body 3 is attached to the container body 2 , the above-mentioned locking mechanism 19 can prevent the outer lid 9 from being unintentionally released from the container body 2 .

In addition, in the capped container 1A of the present embodiment, the outer cap 9 is rotated in the opening direction from the state in which the cap body 3 is attached to the above-mentioned container main body 2, so that after the vent hole 17 is opened, it stops. When the movable convex portion 22 abuts against the inner engaging convex portion 20 , the inner cover 10 and the outer cover 9 are integrally rotated in the opening direction, and the tight contact of the waterproof gasket 13 with respect to the protruding portion 8 is released.

Thereby, even if the inner cap 10 is pulled inwardly of the container body 2 due to the pressure drop in the body 2, the screwing of the external thread portion 7 and the internal thread portion 12 can be easily released and removed from the container body 2. Cover 3.

Therefore, in the container 1A with a lid of this embodiment, even when the pressure in the container main body 2 drops, the lid body 3 can be easily and safely removed.

In addition, as the case where the pressure in the container main body 2 decreases (becomes a negative pressure), for example, after putting high-temperature contents in the container main body 2, the contents are cooled.

(second embodiment)

Next, as a second embodiment of the present invention, for example, a lidded container 1B shown in FIGS. 9 and 10 will be described.

Moreover, FIG. 9 is a perspective view which looked at the outer cover 9 and the middle stopper 11 with which the container 1B with a cover was equipped from the lower side. FIG. 10 is a perspective view of the inner lid 10 included in the lidded container 1A viewed from above. In addition, in the following description, description is abbreviate|omitted about the same part as 1A of containers with a lid mentioned above, and the same code|symbol is attached|subjected in drawing.

In the lidded container 1B of this embodiment, as shown in FIGS. 9 and 10 , the lid body 3 is provided with an interlocking mechanism 28 instead of the locking mechanism 19 described above, and the interlocking mechanism 28 is fitted in the middle plug 11 In the inner state of the cover 10 , the inner cover 10 and the outer cover 9 rotate integrally by engaging the outer engaging portion 26 provided on the inner cover 10 with the inner engaging portion 27 provided on the middle plug 11 .

Specifically, the outer engaging portion 26 has a concave-convex structure formed such that a plurality of mountain-shaped convex portions 26a and a plurality of valley-shaped concave portions 26b extend along the circumferential direction on the inner peripheral surface of the inner cover 10 (peripheral wall portion 10b ). Arranged alternately. Likewise, the inner engaging portion 27 has a concavo-convex structure in which a plurality of mountain-shaped protrusions 27 a and a plurality of valley-shaped recesses 27 b are alternately arranged in the circumferential direction on the outer peripheral surface of the middle plug 11 .

In the interlocking mechanism 28, the mountain-shaped convex portion 26a on the side of the outer engaging portion 26 engages with the valley-shaped concave portion 27b on the side of the inner engaging portion 27, respectively, and the valley-shaped concave portion 26b on the side of the outer engaging portion 26 engages with the inner side. The mountain-shaped convex portions 27a on the side of the portion 27 are engaged with each other, whereby the middle plug 11 is fitted into the inner side of the inner cover 10 .

In addition, the outer engaging portion 26 and the inner engaging portion 27 have a concavo-convex structure in which a plurality of mountain-shaped convex portions 26a, 27a and a plurality of valley-shaped concave portions 26b, 27b are arranged alternately along the circumferential direction, so that even if the middle plug 11 faces These outer engaging portions 26 and inner engaging portions 27 can also be engaged at arbitrary positions in the circumferential direction of the inner cover 10 .

In addition, when the middle plug 11 is fitted inside the inner cap 10 , the inner cap 10 is restricted from rotating around the axis relative to the middle plug 11 by the engagement of the outer engaging portion 26 and the inner engaging portion 27 . Thus, in the interlocking mechanism 28, when the outer cover 9 is rotated in the closing direction or the opening direction relative to the container body 2 in the state where the middle plug 11 is fitted inside the inner cover 10, the inner cover 10 and the outer cover 10 are connected to each other. The cover 9 turns integrally.

In the capped container 1B of the present embodiment having the above-mentioned structure, after the inner cap 10 is fitted into the container body 2 from the opening 2a, the inner plug 11 is fitted into the inner cap 10. . Then, from this state, the outer cover 9 is rotated in the closing direction, whereby the external thread portion 7 and the internal thread portion 12 are screwed together.

Thus, the lid body 3 can be attached to the container body 2 . In addition, at this time, the plug body 18 abuts against the periphery of the vent hole 17, whereby the vent hole 17 is in a sealed (closed) state. In addition, the waterproof gasket 13 is in close contact with the overhanging portion 8 over the entire circumference, whereby the space between the container main body 2 and the inner lid 10 is sealed by the waterproof gasket 13 .

Here, even if the center of the inner lid 10 is installed at a position slightly deviated from the center of the container main body 2, when the inner lid 10 and the outer lid 9 are integrally turned in the closing direction, the inner lid 10 will be formed along a gentle mortar shape. The shape of the protruding part 8 guides the inner cover 10, and the inner cover 10 also moves in a direction coincident with the central axis. Thus, since the central axes of the container body 2 and the inner lid 10 coincide, the waterproof gasket 13 is in close contact with the protruding portion 8 without deviation over the entire circumference, and good waterproofness can be exhibited.

In addition, in the lidded container 1B of this embodiment, in the state where the lid body 3 is attached to the container body 2, the above-mentioned interlocking mechanism 28 can prevent the outer lid 9 from being unintentionally loosened from the container body 2. .

On the other hand, from the state where the lid body 3 is attached to the container main body 2, by turning the outer lid 9 in the opening direction, the inner lid 10 and the outer lid 9 are integrally turned in the opening direction by the above-mentioned interlocking mechanism 28. Rotate, and release the screwing of the external thread portion 7 and the internal thread portion 12 .

In addition, at this time, the contact of the plug body 18 with the periphery of the vent hole 17 is released, whereby the vent hole 17 is in an open state. Thereby, the pressure inside the container main body 2 is released through the vent hole 17, so the pressure inside the container main body 2 becomes the same pressure (atmospheric pressure) as the outside.

And, from this state, by further turning the outer cover 9 in the opening direction, the inner cover 10 and the outer cover 9 are integrally rotated in the opening direction by means of the above-mentioned interlocking mechanism 28, and the waterproof gasket 13 protrudes relative to the The adhered state of the portion 8 is released. In addition, the screwing of the internally threaded portion 7 and the externally threaded portion 12 is completely released, whereby the lid body 3 can be detached from the container body 2 .

As described above, in the lidded container 1B of the present embodiment, from the state where the lid body 3 is attached to the above-mentioned container body 2, the outer lid 9 is rotated in the opening direction, whereby the inner lid is opened by the interlocking mechanism 28. The cover 10 is integrally rotated in the opening direction with the outer cover 9, and after the vent hole 17 is opened, the tight contact state of the waterproof gasket 13 with respect to the extension part 8 is released.

As a result, the inner cap 9 is not pulled to the inside of the container body 2 due to the pressure drop in the container body 2, and the screwing of the external thread portion 7 and the internal thread portion 12 can be released, so that the container body 2 can be removed. Lower cover body 3.

Therefore, in the capped container 1B of this embodiment, even when the pressure in the container body 2 drops, the cap body 3 can be easily and safely removed.

In addition, this invention is not necessarily limited to the said embodiment, Various changes are possible in the range which does not deviate from the summary of this invention.

For example, in the above-mentioned containers with lids 1A and 1B, the vent hole 17 provided in the inner cover 10 is closed by the plug body 18 mounted on the above-mentioned middle plug 11, but it may also be configured to close the vent hole 17 provided with the vent hole. The elastic member is installed on the inner cover 10, and the protrusion as the plug body provided on the middle plug 11 abuts against the elastic member, thereby closing the air hole.

In addition, in the above container with a lid 1B, the outer engaging portion 26 and the inner engaging portion 27 have a structure in which a plurality of mountain-shaped convex portions 26a, 27a and a plurality of valley-shaped concave portions 26b, 27b are respectively arranged alternately along the circumferential direction, However, it is not necessary to be limited to such a structure.

For example, the outer engaging portion 26 and the inner engaging portion 27 may be constituted by the stopper convex portion 22 and the inner engaging convex portion 20 included in the container 1A with a lid described above. In this case, a plurality of stopper protrusions 22 and inner engagement protrusions 20 may be provided. In addition, the numbers of the stopper protrusions 22 and the inner engagement protrusions 20 do not have to be the same number, for example, six stopper protrusions 22 and five inner engagement protrusions 20 may be provided.

In addition, the present invention is preferably applicable to a container with a lid having a heat-retaining/cold-retaining function by a container body having the above-mentioned vacuum insulation structure, but it can also be more widely applied to a container body having the above-mentioned opening portion and a pair. A container with a lid that opens and closes the opening.

Claims (7)

1. A container with a lid, which is provided with a container body having an opening at the top, and a lid for opening and closing the opening, wherein the container with a lid is characterized in that The cover has: an outer cover covering the opening; an inner cover fitted into the inside of the container body from the opening; a sealing member that seals between the container main body and the inner cover; a middle plug, the middle plug is located at the inner central part of the outer cover and embedded in the inner side of the inner cover; and a plug body, the plug body is located at the central part of the bottom surface of the middle plug, and blocks the air hole provided at the central part of the inner cover, The container with a cover is provided with a locking mechanism, and the locking mechanism is screwed by the external thread part provided on the outer peripheral part of the container body and the internal thread part provided on the inner peripheral part of the outer cover, so that the The outer cover is detachably mounted on the container body, and provides a locking feeling when the screwing of the external thread part and the internal thread part is completed, The locking mechanism has an outer engaging convex portion provided on the inner cover and an inner engaging convex portion disposed on the middle plug, when the outer engaging convex portion and the inner engaging convex portion When any one of them passes over the other, it gives a sense of locking, After fitting the inner cap inside the container body from the opening, the outer cap is rotated in the closing direction from the state where the middle plug is fitted inside the inner cap. As a result, the external thread portion and the internal thread portion are screwed together, and the cap is mounted on the container body, From the state where the cover body is attached to the container body, by turning the outer cover in the opening direction, the screw engagement between the external thread part and the internal thread part is released, and it becomes possible to A state in which the lid is removed from the container body, The locking mechanism has a stop protrusion, which is arranged on the inner cover, When any one of the inner engaging protrusion and the outer engaging protrusion passes over the other, the outer engaging protrusion engages with the inner engaging protrusion and the stopper. state between convex parts, The outer cover is further rotated in the closing direction relative to the container body from the engaged state, whereby the stopper protrusion abuts against the inner engaging protrusion, and the inner cover is integrated with the outer cover Turn it in the closing direction. 2. The container with lid according to claim 1, characterized in that, When turning in the opening direction, the inner cover and the outer cover rotate in the same direction, and when the outer cover is removed, the outer cover is separated from the container main body. 3. The container with lid according to claim 1, characterized in that, The locking mechanism also has an elastic piece, which is arranged on the inner cover and can be elastically deformed along the direction of expanding the diameter of the inner cover, The outer engaging protrusion is disposed on the elastic sheet. 4. The container with lid according to claim 1, characterized in that, Regarding the resistance when any one of the outer engaging protrusion and the inner engaging protrusion passes over the other, the resistance when the outer cover is turned in the opening direction is greater than when the outer cover is turned. The resistance when the outer cover is turned in the closing direction. 5. The container with lid according to claim 1, characterized in that, From the state where the lid is attached to the container body, by turning the outer lid in the opening direction, the contact of the plug with the periphery of the vent hole is released, and the state that the vent hole is open, By further turning the outer cover in the opening direction, the inner cover and the outer cover are integrally turned in the opening direction in a state where the stopper protrusion abuts against the inner engaging protrusion. . 6. The container with lid according to claim 1, characterized in that, In a state where the inner cap is fitted inside the container body through the opening, the sealing member is in close contact with the protruding portion provided on the inner peripheral portion of the container body. 7. The container with lid according to claim 1, characterized in that, The container body has a vacuum insulation structure.

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