JP2020186015A - Container with lid - Google Patents

Abstract

To provide a container with a lid of which a lid body can be removed easily and safely.SOLUTION: A container includes a container main body 2 which has an opening part 2a on an upper part, and a lid body 3 which opens and closes the opening part 2a. The lid body 3 includes an outer lid 9 which covers the opening part 2a, an inner lid 10 which is fitted to an inner side of the container main body 2 from the opening part 2a, a seal member 13 which tightly closes between the container main body 2 and the inner lid 10 in a mounted state on an outer peripheral part of the inner lid 10, an inner plug 11 which is positioned in an inner side center part of the outer lid 9 and is fitted to an inner side of the inner lid 10, and a plug body 18 which is positioned in a bottom surface center part of the inner plug 11 and closes a vent hole 17 arranged on a center part of the inner lid 10. The outer lid 9 is detachably mounted on the container main body 2 by screwing a male screw part 7 arranged on an outer peripheral part of the container main body 2 and a female screw part 12 arranged on an inner peripheral part of the outer lid 9. A clicking mechanism provides click feeling while screwing between the male screw part 12 and the female screw part 7 is completed.SELECTED DRAWING: Figure 3

Description

The present invention relates to a container with a lid.

For example, there is a container with a lid that has a heat and cold insulation function by a container body having a vacuum insulation structure (see, for example, Patent Document 1 below). In such a container with a lid, a structure is adopted in which an opening provided in the container body is sealed by using an inner lid and an outer lid.

Specifically, the container with a lid has a container body having an opening at the top, an inner lid that closes the opening while being fitted into the inside of the container body from the opening, and a state of being attached to the inner lid. It is provided with a waterproof packing (seal member) that seals between the container body and the inner lid, and an outer lid that is screwed onto the container body with the opening covered from the outside. Further, the container with a lid has a structure in which an air hole (vent hole) provided in the inner lid is closed by a closing packing (plug body) provided in the outer lid.

In a container with a lid, when the outer lid is attached to the container body, the closing packing is brought into contact with the inner lid to restrict the movement of the inner lid upward. Further, in the container with a lid, when the outer lid is removed from the container body, the closure of the air holes by the closing packing is released. As a result, even if the pressure inside the container body drops (becomes negative pressure), the outside air is introduced through the air holes when the outer lid is removed from the container body, so the pressure inside the container body becomes atmospheric pressure. It will be the same. Therefore, the state in which the inner lid is pulled inside the container body can be released, and the inner lid can be easily removed from the container body.

Japanese Unexamined Patent Publication No. 2013-22703

By the way, in the above-mentioned conventional container with a lid, for example, when a time elapses after putting a high-temperature content inside the container body, the temperature drops, so that the container body is sealed by the inner lid and the outer lid. The internal pressure drops (becomes negative pressure), and the inner lid is pressed against the container body.

At this time, the fastening force due to screwing between the container body and the outer lid is reduced, so that the outer lid may be easily loosened.

The present invention has been proposed in view of such conventional circumstances, and provides a container with a lid that prevents the lid from loosening and makes it possible to easily and safely remove the lid. The purpose.

In order to achieve the above object, the present invention provides the following means.
[1] A container body with an opening at the top and
A lid that opens and closes the opening is provided.
The lid has an outer lid that covers the opening and
An inner lid that is fitted into the inside of the container body through the opening,
A sealing member that seals between the container body and the inner lid while being attached to the outer peripheral portion of the inner lid.
An inner plug located in the inner center of the outer lid and fitted inside the inner lid,
It has a plug body located at the center of the bottom surface of the inner plug and closing the ventilation hole provided in the center of the inner lid.
The outer lid is detachably attached to the container body by screwing the male screw portion provided on the outer peripheral portion of the container body and the female screw portion provided on the inner peripheral portion of the outer lid. With
A container with a lid, which is provided with a click mechanism that gives a click feeling while the screwing of the male screw portion and the female screw portion is completed.
[2] The click mechanism has an outer engaging convex portion provided on the inner lid and an inner engaging convex portion provided on the inner plug, and the outer engaging convex portion and the inner engaging portion are engaged. The container with a lid according to the above [1], wherein a click feeling is given when any one of the convex portions overcomes the other.
[3] The click mechanism is provided on the inner lid and has an elastic piece that can be elastically deformed in the diameter-expanding direction of the inner lid.
The container with a lid according to the above [2], wherein the outer engaging convex portion is provided on the elastic piece.
[4] The inner lid is fitted into the inside of the container body through the opening, and then the outer lid is turned in the closing direction from the state where the inner plug is fitted inside the inner lid. The male screw portion and the female screw portion are screwed together, and the lid body is attached to the container body.
By turning the outer lid in the opening direction from the state where the lid body is attached to the container body, the screwing between the male screw portion and the female screw portion is released, and the lid body is released from the container body. The container with a lid according to any one of the above [1] to [3], wherein the container is in a removable state.
[5] The resistance when any one of the outer engaging convex portion and the inner engaging convex portion gets over any of the other is the opening direction of the outer lid as compared with the case where the outer lid is turned in the closing direction. The container with a lid according to the above [4], which is larger when turned to.
[6] The click mechanism has a stopper convex portion provided on the inner lid.
When any one of the inner engaging convex portion and the outer engaging convex portion gets over the other, the outer engaging convex portion engages between the inner engaging convex portion and the stopper convex portion. The container with a lid according to the above [4] or [5], which is in a combined state.
[7] By turning the outer lid in the opening direction from the state where the lid is attached to the container body, the contact of the plug with the periphery of the vent is released, and the vent is opened. It will be in the state of being
Further, by turning the outer lid in the opening direction, the inner lid is rotated in the opening direction integrally with the outer lid in a state where the stopper convex portion is in contact with the inner engaging convex portion. The container with a lid according to the above [6].
[8] A container body having an opening at the top and a container body
A lid that opens and closes the opening is provided.
The lid has an outer lid that covers the opening and
An inner lid that is fitted into the inside of the container body through the opening,
A sealing member that seals between the container body and the inner lid while being attached to the outer peripheral portion of the inner lid.
An inner plug located in the inner center of the outer lid and fitted inside the inner lid,
It has a plug body located at the center of the bottom surface of the inner plug and closing the ventilation hole provided in the center of the inner lid.
The outer lid is detachably attached to the container body by screwing the male screw portion provided on the outer peripheral portion of the container body and the female screw portion provided on the inner peripheral portion of the outer lid. With
In a state where the inner plug is fitted inside the inner lid, the inner lid is formed by engagement between the outer engaging portion provided on the inner lid and the inner engaging portion provided on the inner lid. A container with a lid that rotates integrally with the outer lid.
[9] The sealing member is in close contact with the overhanging portion provided on the inner peripheral portion of the container body in a state where the inner lid is fitted into the inside of the container body through the opening. The container with a lid according to any one of the above [1] to [8].
[10] The container with a lid according to any one of the above [1] to [9], wherein the container body has a vacuum heat insulating structure.

As described above, according to the present invention, it is possible to provide a container with a lid that prevents the lid from loosening and makes it possible to easily and safely remove the lid.

It is an exploded perspective view of the container with a lid which concerns on 1st Embodiment of this invention as seen from the upper side. It is an exploded perspective view of the container with a lid shown in FIG. 1 as seen from the lower side. It is sectional drawing which shows the structure of the container with a lid shown in FIG. It is a perspective view which looked at the outer lid and the inner plug of the container with a lid shown in FIG. 1 from the lower side. FIG. 5 is a perspective view of the inner lid of the container with a lid shown in FIG. 1 as viewed from above. It is a perspective view which looked at the inner lid of the container with a lid shown in FIG. 1 from the lower side. In the click mechanism provided in the container with a lid shown in FIG. 1, the state before the inner engaging convex portion gets over the outer engaging convex portion when the inner plug is turned in the closing direction with respect to the inner lid is viewed from above. It is a horizontal sectional view. In the click mechanism provided in the container with a lid shown in FIG. 1, the state after the inner engaging convex portion has passed over the outer engaging convex portion when the inner plug is turned in the closing direction with respect to the inner lid is viewed from above. It is a horizontal sectional view. It is a perspective view which looked at the outer lid and the inner plug of the container with a lid which concerns on 2nd Embodiment of this invention from the lower side. 9 is a perspective view of the inner lid of the container with a lid shown in FIG. 9 as viewed from above.

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, the container with a lid 1A shown in FIGS. 1 to 8 will be described.
Note that FIG. 1 is an exploded perspective view of the container 1A with a lid as viewed from above. FIG. 2 is an exploded perspective view of the container 1A with a lid as viewed from below. FIG. 3 is a cross-sectional view showing the configuration of the container with a lid 1A. FIG. 4 is a perspective view of the outer lid 9 and the inner plug 11 included in the container with a lid 1A as viewed from below. FIG. 5 is a perspective view of the inner lid 10 included in the container with a lid 1A as viewed from above. FIG. 6 is a perspective view of the inner lid 10 included in the container with a lid 1A as viewed from below. FIG. 7 shows a state before the inner engaging convex portion 20 gets over the outer engaging convex portion 21 when the inner plug 11 is turned in the closing direction with respect to the inner lid 10 in the click mechanism 19 provided in the container 1A with a lid. It is a horizontal sectional view seen from the upper side. FIG. 8 shows, in the click mechanism 19 provided in the container 1A with a lid, after the inner engaging convex portion 20 when the inner plug 11 is turned in the closing direction with respect to the inner lid 10 gets over the outer engaging convex portion 21. It is a horizontal cross-sectional view which looked at the state from the upper side.

As shown in FIGS. 1 and 2, the container 1A with a lid of the present embodiment includes a container body 2 and a lid 3 for opening and closing an opening 2a provided in the upper part of the container body 2. The container 1A with a lid is a soup jar capable of keeping the ingredients (contents) contained in the container body 2 warm by the container body 2 having a vacuum heat insulating structure.

The container 1A with a lid of the present embodiment has a substantially cylindrical appearance shape as a whole, but the appearance shape of the container 1A with a lid is not particularly limited, and the size, design, and the like are not particularly limited. At the same time, it is possible to make appropriate changes. Further, the outer peripheral surface of the container body 2 may be painted, printed, or the like.

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 or the like. In the container body 2, the open ends are joined to each other while the bottomed tubular inner container 5 having one end is housed inside the bottomed tubular outer container 4 having one end opened. It is composed of a heat insulating container in which a vacuum heat insulating layer 6 is provided between the outer container 4 and the inner container 5.

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 a brazing material in a chamber decompressed (evacuated) to a high vacuum.

By having such a vacuum heat insulating structure, the container body 2 can have functions such as heat retention and cold retention. Further, since the container body 2 has such a vacuum heat insulating structure, tension is always applied to the outer container 4 and the inner container 5 due to the difference between the internal pressure (vacuum pressure) and the external pressure (atmospheric pressure). The mechanical strength of the outer container 4 and the inner container 5 will be increased. As a result, 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 body 2 has a substantially circular bottom surface portion 2b, a body portion 2c that rises substantially cylindrically from the outer circumference of the bottom surface portion 2b, and a substantially cylindrical mouth neck portion 2d whose diameter is reduced on the upper side of the body portion 2c. And have. Further, the upper end portion of the mouth neck portion 2d is opened in a circular shape as an opening portion 2a of the container body 2. Further, a male screw portion 7 is provided on the outer peripheral surface of the mouth neck portion 2d (outer container 4). Further, a ring-shaped overhanging portion 8 is provided on the inner peripheral surface between the mouth neck portion 2d and the body portion 2c so as to project in the diameter reduction direction over the entire circumference.

The lid 3 is attached to the outer lid 9 that covers the opening 2a of the container body 2, the inner lid 10 that is fitted into the inside of the container body 2 from the opening 2a, and the outer peripheral portion of the bottom surface of the inner lid 10. A sealing member 13 that seals between the container body 2 and the inner lid 10, an inner plug 11 that is located at the inner center of the outer lid 9 and is fitted inside the inner lid 10, and a bottom center of the inner lid 11. It has a plug 18 that closes the ventilation hole 17 provided in the center of the bottom surface of the inner lid 10.

As shown in FIGS. 1 to 4, the outer lid 9 is made of a heat-resistant resin such as polypropylene, and has a peripheral wall portion 9a formed in a substantially cylindrical shape according to the outer diameter of the body portion 2c of the container body 2. It has an upper wall portion 9b that closes the upper portion of the peripheral wall portion 9a.

On the inner peripheral surface of the peripheral wall portion 9a (outer lid 9), a female screw portion 12 screwed with the male screw portion 7 on the container body 2 side described above is provided. In the container 1A with a lid, the outer lid 9 is detachably attached to the container body 2 by screwing the male screw portion 7 and the female screw portion 12.

In the container 1A with a lid, the outer lid 9 is rotated clockwise (hereinafter, referred to as “closed direction”) with respect to the container body 2 while screwing the male screw portion 7 and the female screw portion 12. The outer lid 9 can be attached to the container body 2. On the other hand, from the state where the outer lid 9 is attached to the container body 2, the outer lid 9 is rotated counterclockwise (hereinafter, referred to as “opening direction”) with respect to the container body 2, so that the male screw portion 7 and the female are female. It is possible to release the screwing with the screw portion 12 and remove the outer lid 9 from the container body 2.

As shown in FIGS. 1 to 3, 5 and 6, the inner lid 10 is made of a heat-resistant resin such as polypropylene, and has a substantially circular bottom wall portion 10a and a substantially cylindrical bottom wall portion 10a from the outer periphery. It has a peripheral wall portion 10b that stands up in a shape. Further, a ring-shaped 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 project in the diameter-expanding direction over the entire circumference.

A waterproof packing 13 is detachably attached to the outer peripheral portion of the bottom surface of the inner lid 10. The water-stop packing 13 is a ring-shaped sealing member that seals between the container body 2 and the inner lid 10, and is made of an elastic member such as a heat-resistant rubber such as silicone rubber or an elastomer.

The inner lid 10 is provided with a ring-shaped lower flange portion 10d projecting from the outer periphery of the bottom wall portion 10a in the diameter-expanding direction. The waterproof packing 13 is fitted to the lower flange portion 10d over the entire circumference.

On the other hand, the waterproof packing 13 can be removed from the lower flange portion 10d by elastically deforming (pulling and stretching) itself. As a result, the inner lid 10 and the waterproof packing 13 can be cleaned separately, and the space between the inner lid 10 and the waterproof packing 13 can be kept hygienic.

Further, an elastic flange portion 13a is provided on the outer peripheral portion of the waterproof packing 13. The elastic flange portion 13a has a shape that protrudes downward from the upper end of the outer peripheral surface of the waterproof packing 13.

When the lid 3 is attached to the container body 2, the waterproof packing 13 is in a state of being in close contact with the overhanging portion 8 over the entire circumference while the elastic flange portion 13a is elastically deformed. As a result, the space between the container body 2 and the inner lid 10 can be sealed by the waterproof packing 13.

As shown in FIGS. 1 to 4, the inner plug 11 is made of a heat-resistant resin such as polypropylene, has a substantially cylindrical shape with a bottom, and is integrally attached to the central portion of the lower surface of the upper wall portion 9b by welding or the like. Has been done. Inside the inner plug 11, as a heat insulating layer, a heat insulating material 14 made of, for example, urethane foam resin is arranged. Further, as the heat insulating layer, air (void) may be used instead of the heat insulating material 14 described above.

As shown in FIGS. 1 to 3, 5 and 6, the inner lid 10 is provided with a circular vent hole 17 penetrating the central portion of the bottom wall portion 10a. On the other hand, a plug body 18 for closing the ventilation hole 17 is provided at the center of the bottom surface of the inner plug 11.

The stopper 18 is made of an elastic member such as a heat-resistant rubber such as silicone rubber or an elastomer. The plug body 18 has a protrusion 18a whose central portion is bulged in a dome shape, a flange portion 18b extending in the diameter-expanding direction from the periphery of the protrusion 18a, and a cylindrical shape from the side opposite to the protrusion 18a. It has a protruding cylindrical portion 18c and a ring-shaped groove portion 18d that cuts out the outer peripheral surface of the cylindrical portion 18c.

On the other hand, the inner plug 11 has a fitting recess 11a in which the cylindrical portion 18c is fitted in the central portion of the bottom surface thereof, and a fitting recess 11a that protrudes in the radial direction from the inner peripheral surface of the fitting recess 11a and is fitted in the groove portion 18d. It has a convex portion 11b. As a result, the plug body 18 is detachably attached to the central portion of the bottom surface of the inner plug 11.

In the lid body 3, when the lid body 3 is attached to the container body 2, the protrusion 18a of the plug body 18 is elastically deformed and is brought into contact with the periphery of the ventilation hole 17 to close the ventilation hole 17. It is possible to do. Further, in the lid body 3, since the plug body 18 can be removed from the inner plug 11 and the inner plug 11 and the plug body 18 can be washed separately, it is possible to keep the space between the inner plug 11 and the plug body 18 hygienic. It is possible.

As shown in FIGS. 1, 2 and 4 to 8, the lid 3 has a click mechanism 19 that gives a click feeling while the above-mentioned male screw portion 7 and female screw portion 12 are screwed together. I have.

The click mechanism 19 has an inner engaging convex portion 20 provided on the inner plug 11, an outer engaging convex portion 21 provided on the inner lid 10, and a stopper convex portion 22.

The inner engaging convex portions 20 are provided so as to project in the diameter-expanding direction while extending in the vertical direction from the relative (opposing) positions on the outer peripheral surface of the inner plug 11.

The outer engaging convex portion 21 is provided on the tip end side of a pair of elastic pieces 23 provided on the peripheral wall portion 10b of the inner lid 10. The pair of elastic pieces 23 are continuously provided with the peripheral wall portion 10b at positions facing each other (opposing) to the peripheral wall portion 10b. Specifically, each elastic piece 23 is provided so as to extend upward from between the slits 24 that cut out the periphery thereof. As a result, the tip (upper end) side of the elastic piece 23 can be elastically deformed in the diameter-expanding direction.

The outer engaging convex portion 21 is provided so as to project in the radial direction from the inner peripheral surface on the tip (upper end) side of the elastic piece 23. Further, the outer engaging convex portion 21 has an inclined surface 21a whose slope gradually increases toward the side where the inner plug 11 is turned in the closing direction with respect to the inner lid 10.

The stopper convex portion 22 is provided so as to project in the diameter reduction direction while extending in the vertical direction from a relative (opposing) position on the inner peripheral surface of the peripheral wall portion 10b (inner lid 10). Further, the stopper convex portion 22 is provided adjacent to the inner lid 10 of the elastic piece 23 on the side where the inner plug 11 is turned in the closing direction.

In the click mechanism 19, as shown in FIG. 7, by turning the outer lid 9 in the closing direction (clockwise in the drawing) with respect to the container body 2, the inner plug 11 is closed with respect to the inner lid 10. It will rotate. At this time, the elastic piece 23 is elastically deformed in the diameter-expanding direction while the inner engaging convex portion 20 is in sliding contact with the inclined surface 21a of the outer engaging convex portion 21. Then, as shown in FIG. 8, the inner engaging convex portion 20 gets over the outer engaging convex portion 21 so that the inner engaging convex portion 20 engages between the outer engaging convex portion 21 and the stopper convex portion 22. It will be in a combined state.

In the click mechanism 19, a click feeling can be obtained when such an inner engaging convex portion 20 gets over the outer engaging convex portion 21. The strength of the click feeling in the click mechanism 19 can be adjusted by adjusting 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, it is also possible to prevent the click feeling from appearing at all. Further, the elastic piece 23 is not limited to a configuration that extends upward from between the slits 24 that cut out the periphery thereof, and is provided so as to be elastically deformable between a pair of slits 24 that are parallel to each other, for example. It may be a structure. Further, in the case of this configuration, the outer engaging convex portion 21 may be provided at the central portion of the elastic piece.

After obtaining a click feeling, the outer lid 9 is further turned in the closing direction with respect to the container body 2, so that the inner lid 10 is in contact with the inner engaging convex portion 20 and the stopper convex portion 22 is in contact with the outer lid 10. It rotates integrally with 9 in the closing direction. As a result, the lid 3 can be attached to the container body 2.

Here, even if the center of the inner lid 10 is attached at a position slightly deviated from the center of the container body 2, the inner lid 10 has a gentle mortar shape while rotating integrally with the outer lid 9 in the closing direction. The inner lid 10 is guided so as to follow the shape of the overhanging portion 8 formed in the above, and the inner lid 10 moves in the direction in which the central axes are aligned. As a result, the central axes of the container body 2 and the inner lid 10 coincide with each other, so that the water blocking packing 13 adheres to the overhanging portion 8 evenly over the entire circumference, and good water stopping can be exhibited. ..

On the other hand, in the click mechanism 19, as shown in FIG. 8, the outer lid 9 is turned in the opening direction (counterclockwise direction in the drawing) with respect to the container body 2 from the state where the lid 3 is attached to the container body 2. As a result, the inner plug 11 rotates in the opening direction with respect to the inner lid 10. At this time, as shown in FIG. 7, the inner engaging convex portion 20 gets over the outer engaging convex portion 21 while elastically deforming the elastic piece 23 in the diameter-expanding direction, whereby the inner engaging convex portion 20 and the outer engaging portion 20 are engaged. The engagement with the convex portion 21 is released.

In the click mechanism 19, depending on the direction of the gradient of the inclined surface 21a described above, the inner engaging convex portion 20 is more toward the opening direction than when the inner engaging convex portion 20 gets over the outer engaging convex portion 21 in the closing direction. The resistance when 20 gets over the outer engaging convex portion 21 is high. This prevents the outer lid 9 from being inadvertently loosened with respect to the container body 2 when the lid 3 is attached to the container body 2.

The click mechanism 19 of the present embodiment is configured to give a click feeling when the inner engaging convex portion 20 gets over the outer engaging convex portion 21 provided with the inclined surface 21a described above. On the contrary, the configuration may be such that a click feeling is given when the outer engaging convex portion 21 gets over the inner engaging convex portion 20 provided with the inclined surface.

In the container 1A with a lid of the present embodiment having the above configuration, the inner lid 10 is fitted inside the container body 2 through the opening 2a, and then the inner plug 11 is fitted inside the inner lid 10. And. Then, from this state, the male screw portion 7 and the female screw portion 12 are screwed together by turning the outer lid 9 in the closing direction.

As a result, the lid 3 can be attached to the container body 2. Further, at this time, the plug body 18 is brought into contact with the periphery of the ventilation hole 17, so that the ventilation hole 17 is sealed (closed). Further, the waterproof packing 13 is brought into close contact with the overhanging portion 8 over the entire circumference, so that the space between the container body 2 and the inner lid 10 is sealed by the waterproof packing 13.

On the other hand, by turning the outer lid 9 in the opening direction from the state where the lid 3 is attached to the container body 2, the inner plug 11 rotates in the opening direction integrally with the inner lid 10 and is male. The screwing between the screw portion 7 and the female screw portion 12 begins to be released.

Further, at this time, the contact of the plug body 18 with the periphery of the ventilation hole 17 is released, so that the ventilation hole 17 is opened. As a result, the pressure inside the container body 2 is released through the ventilation holes 17, so that the pressure inside the container body 2 becomes the same pressure (atmospheric pressure) as the outside.

Then, from this state, by further turning the outer lid 9 in the opening direction, the inner lid 22 is in contact with the inner engaging convex portion 20 from the side opposite to that when the outer lid 9 is turned in the closing direction. While the 10 rotates integrally with the outer lid 9 in the opening direction, the state of close contact of the water blocking packing 13 with respect to the overhanging portion 8 is released. Further, when the screwing between the female screw portion 7 and the male screw portion 12 is completely released, the lid body 3 can be removed from the container body 2.

Further, even when the water blocking packing 13 and the overhanging portion 8 are in close contact with each other by the water seal, the inner lid 10 rotates integrally with the outer lid 9 in the opening direction, so that the waterproof packing 13 and the overhanging portion 8 are in close contact with each other. It is possible to remove the lid 3 from the container body 2 by releasing the close contact with the water seal.

As described above, in the container 1A with a lid of the present embodiment, the click mechanism 19 described above can give a click feeling while the screwing between the male screw portion 7 and the female screw portion 12 is completed. is there. Further, the click mechanism 19 described above can prevent the outer lid 9 from being inadvertently loosened with respect to the container body 2 when the lid 3 is attached to the container body 2.

Further, in the container 1A with a lid of the present embodiment, after the vent hole 17 is opened by turning the outer lid 9 in the opening direction from the state where the lid 3 is attached to the container body 2 described above, the inner engagement is performed. With the stopper convex portion 22 in contact with the joint convex portion 20, the inner lid 10 rotates integrally with the outer lid 9 in the opening direction, and the state of close contact of the water blocking packing 13 with the overhanging portion 8 is released.

As a result, even if the inner lid 10 is pulled inside the container body 2 due to the pressure drop in the container body 2, the male screw portion 7 and the female screw portion 12 can be easily unscrewed from the container body 2. The lid 3 can be removed.

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

As a case where the pressure inside the container body 2 decreases (becomes a negative pressure), for example, when a high-temperature content is put inside the container body 2 and then the content cools down. it can.

(Second Embodiment)
Next, as a second embodiment of the present invention, for example, the container with a lid 1B shown in FIGS. 9 and 10 will be described.
Note that FIG. 9 is a perspective view of the outer lid 9 and the inner plug 11 included in the container 1B with a lid as viewed from below. FIG. 10 is a perspective view of the inner lid 10 included in the container with a lid 1A as viewed from above. Further, in the following description, the same parts as those of the container with lid 1A will be omitted and the same reference numerals will be given in the drawings.

In the lidded container 1B of the present embodiment, as shown in FIGS. 9 and 10, the lid body 3 is in a state where the inner plug 11 is fitted inside the inner lid 10 instead of the click mechanism 19 described above. An outer engaging portion 26 provided on the inner lid 10 and an inner engaging portion 27 provided on the inner plug 11 are engaged with each other, so that the inner lid 10 rotates integrally with the outer lid 9. It has 28.

Specifically, the outer engaging portion 26 has a concave-convex structure in which a plurality of mountain-shaped convex portions 26a and a plurality of valley-shaped concave portions 26b are alternately arranged in the circumferential direction on the inner peripheral surface of the inner lid 10 (peripheral wall portion 10b). have. Similarly, the inner engaging portion 27 has a concave-convex structure in which a plurality of mountain-shaped convex portions 27a and a plurality of valley-shaped concave portions 27b are alternately arranged in the circumferential direction on the outer peripheral surface of the inner plug 11.

In the carrying mechanism 28, the mountain-shaped convex portion 26a on the outer engaging portion 26 side and the valley-shaped concave portion 27b on the inner engaging portion 27 side are respectively engaged, and the valley-shaped concave portion 26b on the outer engaging portion 26 side and the inner side are engaged with each other. By engaging each of the mountain-shaped convex portions 27a on the engaging portion 27 side, the inner plug 11 is fitted inside the inner lid 10.

Further, 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 and 27a and a plurality of valley-shaped concave portions 26b and 27b are alternately arranged in the circumferential direction. The outer engaging portion 26 and the inner engaging portion 27 can be engaged with each other regardless of the position of the inner plug 11 with respect to the inner lid 10 in the circumferential direction.

Further, in a state where the inner lid 11 is fitted inside the inner lid 10, the inner lid 10 rotates about the axis with respect to the inner plug 11 due to the engagement between the outer engaging portion 26 and the inner engaging portion 27. It regulates that. As a result, in the rotating mechanism 28, when the outer lid 9 is turned in the closing direction or the opening direction with respect to the container body 2 with the inner lid 11 fitted inside the inner lid 10, the inner lid 10 is opened. It will rotate integrally with the outer lid 9.

In the container 1B with a lid of the present embodiment having the above configuration, the inner lid 10 is fitted inside the container body 2 through the opening 2a, and then the inner plug 11 is fitted inside the inner lid 10. And. Then, from this state, the male screw portion 7 and the female screw portion 12 are screwed together by turning the outer lid 9 in the closing direction.

As a result, the lid 3 can be attached to the container body 2. Further, at this time, the plug body 18 is brought into contact with the periphery of the ventilation hole 17, so that the ventilation hole 17 is sealed (closed). Further, the waterproof packing 13 is brought into close contact with the overhanging portion 8 over the entire circumference, so that the space between the container body 2 and the inner lid 10 is sealed by the waterproof packing 13.

Here, even if the center of the inner lid 10 is attached at a position slightly deviated from the center of the container body 2, the inner lid 10 has a gentle mortar shape while rotating integrally with the outer lid 9 in the closing direction. The inner lid 10 is guided so as to follow the shape of the overhanging portion 8 formed in the above, and the inner lid 10 moves in the direction in which the central axes are aligned. As a result, the central axes of the container body 2 and the inner lid 10 coincide with each other, so that the water blocking packing 13 adheres to the overhanging portion 8 evenly over the entire circumference, and good water stopping can be exhibited. ..

Further, in the container 1B with a lid of the present embodiment, the outer lid 9 is inadvertently loosened with respect to the container body 2 in a state where the lid 3 is attached to the container body 2 by the above-mentioned carrying mechanism 28. It is preventing.

On the other hand, by turning the outer lid 9 in the opening direction from the state where the lid 3 is attached to the container body 2, the inner lid 10 is rotated in the opening direction integrally with the outer lid 9 by the above-mentioned carrying mechanism 28. The screwing between the male screw portion 7 and the female screw portion 12 is released.

Further, at this time, the contact of the plug body 18 with the periphery of the ventilation hole 17 is released, so that the ventilation hole 17 is opened. As a result, the pressure inside the container body 2 is released through the ventilation holes 17, so that the pressure inside the container body 2 becomes the same pressure (atmospheric pressure) as the outside.

Then, from this state, by further turning the outer lid 9 in the opening direction, the inner lid 10 is rotated in the opening direction integrally with the outer lid 9 by the above-mentioned carrying mechanism 28, and the waterproof packing 13 for the overhanging portion 8 is formed. The close contact state of is released. Further, when the screwing between the female screw portion 7 and the male screw portion 12 is completely released, the lid body 3 can be removed from the container body 2.

As described above, in the container 1B with a lid of the present embodiment, the inner lid 10 is provided by the rotating mechanism 28 by turning the outer lid 9 in the opening direction from the state where the lid 3 is attached to the container body 2 described above. Is rotated in the opening direction integrally with the outer lid 9, and after the ventilation hole 17 is opened, the state of close contact of the waterproof packing 13 with the overhanging portion 8 is released.

As a result, the inner lid 9 is not pulled inside the container body 2 due to the pressure drop in the container body 2, and the male screw portion 7 and the female screw portion 12 are unscrewed, and the lid is removed from the container body 2. It is possible to remove the body 3.

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

The present invention is not necessarily limited to that of the above embodiment, and various modifications can be made without departing from the spirit of the present invention.
For example, in the containers 1A and 1B with lids, the ventilation holes 17 provided in the inner lid 10 are closed by the plug body 18 attached to the inner plug 11 described above, but the ventilation holes are provided. It is also possible to attach the elastic member to the inner lid 10 and bring the protrusion of the inner plug 11 to be a plug body into contact with the elastic member to close the ventilation hole.

Further, in the container with a lid 1B, the outer engaging portion 26 and the inner engaging portion 27 have a plurality of chevron convex portions 26a and 27a and a plurality of valley-shaped concave portions 26b and 27b arranged alternately in the circumferential direction. However, it has a configuration, but is not necessarily limited to such a configuration.

For example, the outer engaging portion 26 and the inner engaging portion 27 can be composed of the stopper convex portion 22 and the inner engaging convex portion 20 included in the container 1A with a lid. In this case, it is possible to provide a plurality of stopper convex portions 22 and inner engaging convex portions 20. Further, the number of the stopper convex portions 22 and the inner engaging convex portions 20 need not necessarily be the same, and for example, six stopper convex portions 22 and five inner engaging convex portions 20 are provided. Is also possible.

The present invention can be suitably applied to a container with a lid having a heat and cold insulation function by the container body having the vacuum insulation structure described above, but the container body provided with the above-mentioned opening and the opening and closing of the opening are opened and closed. It is possible to widely apply the present invention to a container with a lid provided with a lid.

1A, 1B ... Container with lid 2 ... Container body 2a ... Opening 3 ... Lid body 7 ... Male screw part 8 ... Overhanging part 9 ... Outer lid 10 ... Inner lid 11 ... Inner plug 12 ... Female screw part 13 ... Water stop Packing (seal member) 18 ... Plug body 19 ... Click mechanism 20 ... Inner engaging convex part 21 ... Outer engaging convex part 22 ... Stopper convex part 23 ... Elastic piece 26 ... Outer engaging part 27 ... Inner engaging part 28 ... Rotation mechanism

Claims (10)

The container body with an opening at the top and
A lid that opens and closes the opening is provided.
The lid has an outer lid that covers the opening and
An inner lid that is fitted into the inside of the container body through the opening,
A sealing member that seals between the container body and the inner lid while being attached to the outer peripheral portion of the inner lid.
An inner plug located in the inner center of the outer lid and fitted inside the inner lid,
It has a plug body located at the center of the bottom surface of the inner plug and closing the ventilation hole provided in the center of the inner lid.
The outer lid is detachably attached to the container body by screwing the male screw portion provided on the outer peripheral portion of the container body and the female screw portion provided on the inner peripheral portion of the outer lid. With
A container with a lid, which is provided with a click mechanism that gives a click feeling while the screwing of the male screw portion and the female screw portion is completed. The click mechanism has an outer engaging convex portion provided on the inner lid and an inner engaging convex portion provided on the inner plug, and the outer engaging convex portion and the inner engaging convex portion are provided. The container with a lid according to claim 1, wherein a click feeling is given when any one of the above overcomes the other. The click mechanism is provided on the inner lid and has an elastic piece that can be elastically deformed in the diameter-expanding direction of the inner lid.
The container with a lid according to claim 2, wherein the outer engaging convex portion is provided on the elastic piece. After fitting the inner lid into the inside of the container body through the opening, the male screw portion is formed by turning the outer lid in the closing direction from the state where the inner plug is fitted inside the inner lid. And the female screw portion are screwed together, and the lid body is attached to the container body.
By turning the outer lid in the opening direction from the state where the lid body is attached to the container body, the screwing between the male screw portion and the female screw portion is released, and the lid body is released from the container body. The container with a lid according to any one of claims 1 to 3, wherein the container is in a removable state. The resistance when either one of the outer engaging convex portion and the inner engaging convex portion gets over the other is such that the outer lid is turned in the opening direction more than when the outer lid is turned in the closing direction. The container with a lid according to claim 4, wherein the time is larger. The click mechanism has a stopper convex portion provided on the inner lid, and has a stopper convex portion.
When any one of the inner engaging convex portion and the outer engaging convex portion gets over the other, the outer engaging convex portion engages between the inner engaging convex portion and the stopper convex portion. The container with a lid according to claim 4 or 5, wherein the container is in a combined state. By turning the outer lid in the opening direction from the state in which the lid body is attached to the container body, the contact of the plug body with the periphery of the ventilation hole is released, and the ventilation hole is opened. Next,
Further, by turning the outer lid in the opening direction, the inner lid is rotated in the opening direction integrally with the outer lid in a state where the stopper convex portion is in contact with the inner engaging convex portion. The container with a lid according to claim 6. The container body with an opening at the top and
A lid that opens and closes the opening is provided.
The lid has an outer lid that covers the opening and
An inner lid that is fitted into the inside of the container body through the opening,
A sealing member that seals between the container body and the inner lid while being attached to the outer peripheral portion of the inner lid.
An inner plug located in the inner center of the outer lid and fitted inside the inner lid,
It has a plug body located at the center of the bottom surface of the inner plug and closing the ventilation hole provided in the center of the inner lid.
The outer lid is detachably attached to the container body by screwing the male screw portion provided on the outer peripheral portion of the container body and the female screw portion provided on the inner peripheral portion of the outer lid. With
In a state where the inner plug is fitted inside the inner lid, the inner lid is formed by engagement between the outer engaging portion provided on the inner lid and the inner engaging portion provided on the inner lid. A container with a lid that rotates integrally with the outer lid. The sealing member is characterized in that, when the inner lid is fitted into the inside of the container body through the opening, the seal member is in close contact with an overhanging portion provided on the inner peripheral portion of the container body. The container with a lid according to any one of claims 1 to 8. The container with a lid according to any one of claims 1 to 9, wherein the container body has a vacuum heat insulating structure.

Images