JP2016094229A - Lidded container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lidded container, from which an inner lid and an outer lid can be easily and safely removed even in a case where pressure in a container body rises.SOLUTION: A lidded container comprises: a container body 2 equipped at an upper portion with an opening 2a; and a lid body 3 for opening and closing the opening 2a. The lid body 3 includes: an outer lid 8 attached removably to the outer peripheral portion of the container body 2; an inner lid 9 positioned on the inner side of the outer lid 8 and closing the opening 2a while being fitted from the opening 2a into the inner side of the container body 2; a hood 10 attached removably to the inner lid 9 and covering an upper face opening of the outer lid 8 while being fitted into the inner side of the inner lid 9; a seal member 18 positioned in the outer peripheral portion of the inner lid 9 and sealing a space between the container body 2 and the inner lid 9; and a plug 24 positioned at the bottom face portion 10c of the hood 10 for closing the air holes 23 formed on the bottom face part 9a of the inner lid 9.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a container with a lid.

  For example, there is a container with a lid provided with a heat retaining / cooling function by a container body having a vacuum heat insulating structure (see, for example, Patent Documents 1 and 2). Such a lidded container employs a structure in which an opening provided in the container body is sealed using an inner lid and an outer lid.

  Specifically, the container with a lid is a container body provided with an opening in the upper part, an inner lid that closes the opening while being fitted inside the container body from the opening, and a state attached to the inner lid And a waterproof seal (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. In addition, the outer lid regulates movement of the inner lid upward by being brought into contact with the inner lid when mounted on the container body.

  Moreover, the container with a lid | cover has the structure where the obstruction | occlusion packing (plug body) provided in the outer cover obstruct | occludes the air hole provided in the inner cover. In the container with a lid, when the outer lid is removed from the container main body, the blockage of the air hole by the blocking packing is released. As a result, even when the pressure in the container body is reduced (becomes negative pressure), the outside air is introduced through the air holes when the outer lid is removed from the container body. It will be the same. Therefore, it is possible to easily remove the inner lid from the container body without the inner lid being pulled inside the container body.

JP 2009-2018857 A JP 2013-227034 A

  However, in a conventional container with a lid, for example, when high-temperature contents are put inside the container body, the pressure in the container body sealed by the inner lid and the outer lid rises (becomes positive pressure). Along with this, the inner lid is pressed against the outer lid. At this time, when the fastening force by screwing increases between the container main body and the outer lid, it may be difficult to rotate the outer lid in the removing direction. In addition, when the outer lid is removed, the pressure in the container body is released all at once and a loud sound may be produced.

  The present invention has been proposed in view of such conventional circumstances, and provides a container with a lid that can easily and safely remove a lid even when the pressure in the container body increases. With the goal.

In order to achieve the above object, the present invention provides the following means.
[1] A container body having an opening at the top;
A lid that opens and closes the opening,
The lid body is an outer lid that is detachably attached to the outer peripheral portion of the container body;
An inner lid that is located inside the outer lid and closes the opening in a state of being fitted inside the container body from the opening;
A canopy that is detachably attached to the outer lid or the inner lid and covers the top opening of the outer lid in a state of being fitted inside the inner lid;
A seal member that is located on the outer periphery of the inner lid and seals between the container body and the inner lid;
A container with a lid, comprising: a plug body that is positioned on a bottom surface portion of the canopy and closes an air hole provided in the bottom surface portion of the inner lid.
[2] The container with a lid according to [1], wherein the inner lid is detachably attached to an inner peripheral portion of the outer lid.
[3] The outer lid is attached to the outer peripheral portion of the container body by screwing,
The said canopy is attached to the inner peripheral part of the said inner lid by screwing, The container with a cover as described in said [1] or [2] characterized by the above-mentioned.
[4] A male screw portion is provided on one side of the canopy and the inner lid, and a female screw portion is provided on either side,
A stopper mechanism is provided for fixing the canopy to the inner lid in a state where the canopy is attached to the inner lid by screwing the male screw portion and the female screw portion. The lidded container according to [3], which is characterized in that
[5] The stopper mechanism has an engagement convex portion on one side of the male screw portion and the female screw portion, and an engagement concave portion on either side.
After the plug body closes the air hole, the canopy is fixed to the shut-off position with respect to the inner lid by the engagement of the engagement convex portion and the engagement concave portion. 4].
[6] The stopper mechanism has a stopper on a terminal end side of a thread that forms one of the female screw portion and the male screw portion,
When the screwing of the male screw part and the female screw part is completed, the start end side of the screw thread forming either the female screw part or the male screw part is brought into contact with the stopper The container with lid according to [4] or [5], wherein the canopy is prevented from rotating with respect to the inner lid.
[7] The lid includes an elastic member that is detachably attached to a bottom surface of the canopy,
The plug is a protrusion provided on the elastic member, and the protrusion closes the air hole by contacting the bottom of the inner lid. [6] The container with a cover according to any one of [6].
[8] The lid body is detachably attached to an attachment hole provided in a bottom surface portion of the inner lid, and has an elastic member provided with the air hole,
The plug is a protrusion provided on a bottom surface of the canopy, and the protrusion closes the air hole by contacting the elastic member. 6] The container with a cover as described in any one of.
[9] The container with a lid according to any one of [1] to [8], wherein the container body has a vacuum heat insulating structure.

  As described above, according to the present invention, it is possible to provide a lidded container in which the lid can be easily and safely removed even when the pressure in the container body increases.

It is the disassembled perspective view which looked at the container with a lid concerning one embodiment of the present invention from the upper part side. It is the disassembled perspective view which looked at the cover body of the container with a lid shown in FIG. 1 from the downward side. It is a side view of the container with a lid shown in FIG. It is sectional drawing of the container with a lid by line segment A-A 'shown in FIG. It is principal part sectional drawing which shows the modification of the container with a lid shown in FIG.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
As an embodiment of the present invention, a lidded container 1 shown in FIGS. 1 to 4 will be described, for example. FIG. 1 is an exploded perspective view of the lidded container 1 as viewed from above. FIG. 2 is an exploded perspective view of the lid 3 of the lidded container 1 shown in FIG. 1 as viewed from below. FIG. 3 is a side view of the lidded container 1 shown in FIG. FIG. 4 is a cross-sectional view of the lidded container 1 taken along line AA ′ shown in FIG.

  As shown in FIGS. 1 to 4, the lidded container 1 includes a container body 2 having a vacuum heat insulating structure, and a lid body 3 that opens and closes an opening 2 a provided in the upper part of the container body 2. In addition, about the external appearance shape of the container 1 with a lid | cover, it does not specifically limit. For example, the lidded container 1 of the present embodiment has a substantially cylindrical appearance as a whole.

  The container main body 2 has a bottomed cylindrical outer container 4 and an inner container 5 made of, for example, stainless steel, and is a double body in which each mouth portion is joined in a state in which the inner container 5 is accommodated inside the outer container 4. It is comprised by the container of a structure. 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 closing a deaeration hole (not shown) provided in the center of the bottom surface of the outer container 4 in a chamber that is depressurized (evacuated) to a high vacuum. . Note that the outer peripheral surface of the container body 2 may be painted or printed.

  The container main body 2 includes a substantially circular bottom surface portion 2b, a body portion 2c that rises in a substantially cylindrical shape from the outer periphery of the bottom surface portion 2b, and a substantially cylindrical mouth and neck portion 2d that has a reduced diameter on the upper side of the body portion 2c. And have. The upper end portion of the mouth / neck portion 2 d forms a circular opening 2 a as the mouth portion 2 e of the container body 2. Further, a ring-shaped stepped portion 7 is provided on the inner peripheral surface between the mouth-and-neck portion 2d and the body portion 2c so as to protrude over the entire circumference.

  The lid body 3 is detachably attached to the outer peripheral portion of the container body 2, the inner lid 9 is detachably attached to the inner peripheral portion of the outer lid 8, and is detachable to the inner peripheral portion of the inner lid 9. The canopy 10 is attached to the canopy 10.

  The outer lid 8 is made of a heat resistant resin such as polypropylene and is formed in a substantially cylindrical shape. Further, a ring-shaped inner flange portion 8a is provided on the inner peripheral surface of the outer lid 8 so as to protrude over the entire circumference.

  The outer lid 8 is attached to the mouth neck 2d of the container body 2 by screwing. For this reason, the internal thread part 11 is provided in the inner peripheral surface of the outer cover 8 between the lower end part and the inner side flange part 8a. On the other hand, a male screw portion 12 that is screwed into the female screw portion 11 is provided on the outer peripheral surface of the mouth and neck portion 2d.

  The inner lid 9 is made of a heat resistant resin such as polypropylene. The inner lid 9 has a substantially circular bottom surface portion 9a and a peripheral wall portion 9b that rises in a substantially cylindrical shape from the outer peripheral portion of the bottom surface portion 9a. Further, a ring-shaped upper flange portion 9c is provided on the upper end side of the outer peripheral surface of the peripheral wall portion 9b so as to protrude over the entire circumference.

  Between the outer lid 8 and the inner lid 9, a detaching mechanism 13 for detachably attaching the inner lid 9 to the inner side of the outer lid 8 is provided. The detaching mechanism 13 has a pair of hook pieces 14 on the inner lid 9 side. The pair of hook pieces 14 are erected with a predetermined width from the opposed positions of the peripheral wall 9b. A pair of slits 15 are provided on both sides of the hook piece 14 in the width direction so as to cut out the upper end of the peripheral wall portion 9b in the axial direction. Thereby, the hook piece 14 is extended upward from between the slits 15 continuously to the peripheral wall portion 9b, and the distal end side thereof can be elastically deformed in the reduced diameter direction. Further, a claw portion 14 a is provided to protrude from the outer peripheral surface on the tip end side of the hook piece 14.

  On the other hand, the detaching mechanism 13 has a pair of locked portions 16 on the outer lid 8 side. A pair of to-be-latched part 16 exists in the position which the inner side flange part 8a opposes. A pair of anti-rotation projections 17 projecting in the axial direction from the lower end of the inner flange portion 8a are provided on both sides of the locked portion 16 in the width direction. In other words, the locked portion 16 is configured by the inner flange portion 8 a located between the pair of detent projections 17.

  In the detachable mechanism 13, the inner lid 9 is fitted inside the outer lid 8 from below, whereby the upper flange portion 9 c is in contact with the inner flange portion 8 a. At the same time, while the pair of hook pieces 14 are elastically deformed, the claw portions 14a of the hook pieces 14 are locked to the inner flange portions 8a at the positions to be the locked portions 16. Thereby, it is possible to attach the inner lid 9 to the inner side of the outer lid 8. On the other hand, in the detachable mechanism 13, the inner lid 9 can be removed from the inner side of the outer lid 8 by releasing the locking state of the claw portions 14 a with respect to the respective locked portions 16.

  In the detaching mechanism 13, the pair of detent projections 17 are engaged with the pair of slits 15 in a state where the inner lid 9 is attached to the inner side of the outer lid 8. Thereby, it is possible to restrict movement (rotation) of the inner lid 9 around the central axis with respect to the outer lid 8. Note that the slit 15 and the anti-rotation protrusion 17 are not necessarily required, and these configurations are omitted, and the inner lid 9 can move (rotate) around the central axis with respect to the outer lid 8. It is also possible to do.

  The inner lid 9 attached to the outer lid 8 via the detaching mechanism 13 is provided between the opening 2a of the container body 2 and the mouth / neck 2d when the outer lid 8 is attached to the mouth / neck section 2d of the container body 2. The opening 2a of the container body 2 is closed while being fitted inside.

  A water-stop packing 18 is detachably attached to the outer peripheral portion of the inner lid 9. The water-stop packing 18 is a ring-shaped sealing member that seals between the container main body 2 and the inner lid 9, and is made of a heat-resistant rubber such as silicone rubber or an elastic member such as an elastomer.

  The inner lid 9 has a lower flange portion 9d that protrudes in a ring shape from the lower end side of the outer peripheral surface of the peripheral wall portion 9b, and a groove portion 9e that is cut out in a ring shape along the lower end of the lower flange portion 9d. Is provided. On the other hand, on the inner peripheral surface of the water-stopping packing 18, a ring-shaped protrusion 18 a that is fitted in the groove 9 e of the inner lid 9 and a ring-shaped bottom surface portion 18 b that is in contact with the bottom surface portion 9 a of the inner lid 9. And are provided.

  The water blocking packing 18 is attached to the inner lid 9 by fitting the protrusion 18a into the groove 9e. On the other hand, the water-stopping packing 18 can be removed from the inner lid 9 by releasing the fitting of the protrusion 18a to the groove 9e by elastically deforming (stretching) itself. Thereby, the inner lid 9 and the water-stopping packing 18 can be cleaned separately, and the space between the inner lid 9 and the water-stopping packing 18 can be kept hygienic.

  A seal portion 18c that contacts the stepped portion 7 when the inner lid 9 is fitted inside the container body 2 (mouth neck portion 2d) is provided on the outer peripheral portion of the water blocking packing 18. The seal portion 18 c has a shape in which the lower end portion of the outer peripheral surface of the water blocking packing 18 is thinned downward.

  When the inner lid 9 is fitted inside the container body 2 (mouth neck portion 2d), the sealing portion 18 attached to the inner lid 9 is elastically deformed with the seal portion 18c, and the entire periphery of the step portion 7 It will be in the state closely_contact | adhered over. Thereby, the space between the container main body 2 and the inner lid 9 can be sealed with the water stop packing 18.

  The canopy 10 is made of a heat resistant resin such as polypropylene. The canopy 10 has a substantially disk-shaped top surface portion 10a, a substantially cylindrical peripheral wall portion 10b that falls from the center of the lower surface of the top surface portion 10a, and a bottom surface portion 10c that closes the bottom surface of the peripheral wall portion 10b. .

  In the canopy 10, the peripheral wall portion 10b and the bottom surface portion 10c are formed of a member different from the member forming the top surface portion 10a, and the peripheral wall portion 10b is integrally attached to the lower surface of the top surface portion 10a by ultrasonic welding or the like. It has become. The canopy 10 is not limited to such a configuration, and the bottom surface portion 10c is formed of a member different from the members forming the top surface portion 10a and the peripheral wall portion 10b, and the bottom surface portion 10c is integrated with the lower surface of the peripheral wall portion 10b. An attached configuration is also possible. Moreover, the inside of the canopy 10 can also be set as the structure which has arrange | positioned air and a heat insulating material as a heat insulation layer.

  The canopy 10 covers the upper surface opening of the outer lid 8 while being fitted inside the inner lid 9 and is attached to the inner lid 9 by screwing. For this reason, the internal thread part 19 is provided in the internal peripheral surface of the inner cover 9 (peripheral wall part 9b). On the other hand, on the outer peripheral surface of the canopy 10 (the peripheral wall portion 10b), a male screw portion 20 that is screwed with the female screw portion 19 is provided. Further, a knob portion 21 is provided on the top surface of the top surface portion 10a to make it easy to turn the canopy 10.

  The female screw portion 19 and the male screw portion 20 are double threaded screws that are complementary to each other. When a double screw is used, the canopy 10 can be attached to and detached from the inner lid 9 with a small rotational operation (about 180 ° in this embodiment).

  Specifically, in the double thread, there are two positions where the female screw portion 19 and the male screw portion 20 are screwed, and one screw thread 19a, 20a and the other screw thread 19b, 20b are predetermined. In addition to being formed in a spiral at a pitch, the starting ends of one screw thread 19a, 20a and the starting end of the other screw thread 19b, 20b are arranged with a phase difference of 180 ° around the axis.

  In the double thread, the canopy 10 is attached to the inner lid 9 by rotating the canopy 10 in one direction (clockwise) with respect to the inner lid 9 while screwing the female screw portion 19 and the male screw portion 20 together. It is possible. On the other hand, by rotating the canopy 10 in the other direction (counterclockwise) with respect to the inner lid 9 from the state in which the canopy 10 is attached to the inner lid 9, the female screw portion 19 and the male screw portion 20 are screwed together. Can be released and the canopy 10 can be removed from the inner lid 9.

  In addition, a stopper mechanism 22 is provided between the canopy 10 and the inner lid 9 to fix the canopy 10 to the inner lid 9 when the screwing of the female screw portion 19 and the male screw portion 20 is completed. Yes. The stopper mechanism 22 has a stopper 20c and an engaging convex portion 20d on the male screw portion 20 side, and an engaging concave portion 19c on the female screw portion 19 side. The stopper 20c is positioned at the end of the threads 20a and 20b that form the male screw portion 20. The engaging convex portion 20d is positioned in front of the stopper 20c of the screw threads 20a and 20b forming the male screw portion 20. The engaging recess 19 c is positioned before the end of the threads 19 a and 19 b that form the female thread portion 19.

  In the stopper mechanism 22, as the female screw portion 19 and the male screw portion 20 are screwed together, a projection 25 a of an elastic member 25 described later comes into contact with the air hole 23 of the inner lid 9 and then engages with the engagement recess 19 c. The protrusions 20d are engaged and stopped. Accordingly, the canopy 10 can be reliably stopped at the shut-off position with respect to the inner lid 9 while providing a click feeling using the elasticity of the elastic member 25. When the screwing of the female screw portion 19 and the male screw portion 20 is completed, the start ends of the screw threads 19a and 19b forming the female screw portion 19 are brought into contact with the stopper 20c, whereby the inner lid 9 is On the other hand, the canopy 10 is prevented from rotating.

  The stopper mechanism 22 is not limited to the configuration in which the stopper 20c is provided on the screw threads 20a and 20b that form the male screw portion 20 described above, but the stopper is provided on the screw threads 19a and 19b that form the female screw portion 19. It is also possible to adopt a configuration. Further, the above-described configuration is not limited to the configuration in which the engagement protrusions 20d are provided on the screw threads 20a and 20b forming the male screw part 20 and the engagement recesses 19c are provided on the screw threads 19a and 19b forming the female screw part 19. Alternatively, it is possible to adopt a configuration in which the engagement concave portions are provided in the screw threads 20a, 20b forming the male screw portion 20, and the engagement convex portions are provided in the screw threads 19a, 19b forming the female screw portion 19. is there.

  The inner lid 9 is provided with an air hole 23 penetrating the central portion of the bottom surface portion 9a. On the other hand, the canopy 10 is provided with a plug 24 that closes the air hole 23. The plug body 24 is made of an elastic member 25 such as rubber or elastomer having heat resistance such as silicone rubber. The elastic member 25 is bulged toward the opposite side of the protrusion 25a so as to form a protrusion 25a having a central portion bulged in a substantially dome shape and a ring-shaped groove 25b around the protrusion 25a. And a disc portion 25d extending in the diameter increasing direction from the periphery of the groove portion 25b.

  On the other hand, the canopy 10 is provided with a fitting recess 26 in which the center portion of the bottom surface portion 10c is recessed according to the shape of the fitting portion 25c. The elastic member 25 is detachably attached to the bottom surface portion 10c of the canopy 10 by fitting the fitting portion 25c into the fitting recess 26.

  When the canopy 10 is attached to the inner lid 9, the elastic member 25 attached to the canopy 10 is brought into contact with the bottom surface portion 9 a of the inner lid 9 while the projection 25 a serving as the plug 24 is elastically deformed. The air hole 23 is closed by this. Moreover, since the elastic member 25 can be removed from the canopy 10 and cleaned separately from the canopy 10, the space between the elastic member 25 and the canopy 10 can be kept hygienic.

  In the lidded container 1 having the above configuration, when the pressure in the container body 2 rises (becomes positive), the inner lid 9 is pressed against the outer lid 8 by the pressure rise in the container body 2. It becomes a state. At this time, it is difficult to turn the lid 3 (outer lid 8) in the direction to remove it by increasing the fastening force by screwing between the container body 2 (male screw portion 12) and the outer lid 8 (female screw portion 11). Become.

  In this case, an operation for removing the canopy 10 is performed. That is, in the lidded container 1, when the canopy 10 is removed from the inner lid 9, the air holes 23 are opened by releasing the contact of the protrusions 25 a with the air holes 23. Thereby, since the pressure in the container main body 2 is released through the air holes 23, the pressure in the container main body 2 becomes the same as the atmospheric pressure. Accordingly, the state in which the inner lid 9 is pressed against the outer lid 8 is released, and the outer lid 8 can be easily rotated in the direction of removal. As a result, the lid 3 (the outer lid 8 and the inner lid 9) can be easily detached from the container body 2.

  Moreover, since the area in which the pressure in the container main body 2 is applied to the protrusion 25a that closes the air hole 23 is relatively small, even if the pressure in the container main body 2 is increased, the force received by the canopy 10 is small. Thereby, even when the pressure in the container main body 2 rises (becomes a positive pressure), the canopy 10 can be easily rotated in the direction of removing.

  Similarly, even when the pressure in the container body 2 decreases (becomes negative pressure), the pressure in the container body 2 becomes the same as the atmospheric pressure through the air holes 23 by removing the canopy 10. Therefore, the lid 3 (the outer lid 8 and the inner lid 9) can be easily detached from the container main body 2 without the inner lid 9 being pulled inside the container main body 2.

  In addition, as a case where the pressure in the container main body 2 rises (becomes a positive pressure), for example, when a high-temperature content is put in the container main body 2 or when the content in the container main body 2 is corrupted. For example, when gas is generated. On the other hand, examples of the case where the pressure in the container body 2 decreases (becomes negative pressure) include, for example, when the contents are cooled after the hot contents are put into the container body 2. it can.

  As described above, according to the present invention, even when the pressure in the container main body 2 is increased or the pressure in the container main body 2 is decreased, the lidded container can be easily and safely removed. 1 can be provided.

In addition, this invention is not necessarily limited to the structure of the said container 1 with a lid | cover, A various change can be added in the range which does not deviate from the meaning of this invention.
Specifically, in the container 1 with a lid, an air hole 23 is provided in the bottom surface portion 9 a of the inner lid 9, and a plug body 24 (elastic member 25) that closes the air hole 23 is attached to the bottom surface portion 10 c of the canopy 10. However, the present invention is not limited to such a configuration, and for example, a configuration as shown in FIG. 5 is also possible. In addition, FIG. 5 is a principal part sectional view showing a modification of the container 1 with a lid.

  That is, the configuration shown in FIG. 5 is a configuration in which an attachment hole 27 penetrating the central portion of the bottom surface portion 9 a is provided in the inner lid 9 and an elastic member 28 is detachably attached to the attachment hole 27. An air hole 29 is provided through the central portion of the elastic member 28. On the other hand, the plug 24 that closes the air hole 29 includes a protrusion 30 that protrudes downward from the central portion of the bottom surface 10 c of the canopy 10.

  In the case of the configuration shown in FIG. 5, the air hole 29 can be blocked by the protrusion 30 coming into contact with the upper surface of the elastic member 28. Therefore, also in this configuration, by removing the canopy 10 from the inner lid 9, the contact of the protrusion 30 with the air hole 29 is released, and the air hole 29 is opened. Thereby, the lid 3 (the outer lid 8 and the inner lid 9) can be easily detached from the container body 2.

  Moreover, in the said container 1 with a lid | cover, the contact force of the projection part 25a with respect to the air hole 23 can be adjusted by changing the magnitude | size of the air hole 23, the shape of the projection part 25a, etc., for example. Thereby, for example, even when the contents in the container main body 2 are rotted and the pressure in the container main body 2 is excessively increased, the protrusion with respect to the air hole 29 is applied before a load that causes the outer lid 8 to be removed is applied. It is also possible to adopt a structure in which the pressure in the container body 2 is automatically released from the air hole 23 by releasing the contact of the portion 30.

  Moreover, in the container 1 with a lid, the inner lid 9 is detachably attached to the outer lid 8, but the outer lid 8 and the inner lid 9 are integrally formed without being limited to such a configuration. It is also possible to adopt the configuration described above. Further, the outer lid 8 and the inner lid 9 can be separately attached to the container body 2. Furthermore, in the container 1 with a lid, the canopy 10 is detachably attached to the inner lid 9. However, the configuration is not limited to such a configuration, and the canopy 10 is detachably attached to the outer lid 8. A configuration is also possible.

  Further, the present invention can be suitably applied to a lidded container having a heat insulation / cooling function by a container body having a vacuum heat insulating structure, and a container body provided with the above-described opening, and a lid for opening and closing the opening. The present invention can be widely applied to a lidded container including a body.

  DESCRIPTION OF SYMBOLS 1 ... Container with a lid 2 ... Container main body 2a ... Opening 3 ... Cover body 4 ... Outer container 5 ... Inner container 6 ... Vacuum heat insulation layer 7 ... Step part 8 ... Outer lid 9 ... Inner lid 10 ... Canopy 11 ... Female screw part DESCRIPTION OF SYMBOLS 12 ... Male thread part 13 ... Desorption mechanism 14 ... Hook piece 15 ... Slit 16 ... Locked part 17 ... Anti-rotation protrusion 18 ... Water stop packing (seal member) 19 ... Female thread part 19a, 19b ... Screw thread 19c ... Engaging recess 20 ... male threaded portion 20a, 20b ... thread 20c ... stopper 20d ... engaging projection 22 ... stopper mechanism 23 ... air hole 25 ... elastic member 25a ... projection 27 ... mounting hole 28 ... elastic member 29 ... air Hole 30 ... Projection

In order to achieve the above object, the present invention provides the following means.
[1] A container body having an opening at the top;
A lid that opens and closes the opening,
The lid body is an outer lid that is detachably attached to the outer peripheral portion of the container body;
An inner lid that is detachably attached to the inner peripheral portion of the outer lid, and closes the opening in a state of being fitted inside the container body from the opening;
A canopy that is detachably attached to the outer lid or the inner lid and covers the top opening of the outer lid in a state of being fitted inside the inner lid;
A seal member that is located on the outer periphery of the inner lid and seals between the container body and the inner lid;
A container with a lid, comprising: a plug body that is positioned on a bottom surface portion of the canopy and closes an air hole provided in the bottom surface portion of the inner lid.
[2] A detaching mechanism for detachably attaching the inner lid to the inner side of the outer lid is provided between the outer lid and the inner lid.
The detaching mechanism is configured such that the inner lid is detachably attached to the inner side of the outer lid by a hook piece provided on the inner lid side being locked by a locked portion provided on the outer lid side. The container with a lid according to the above [1], which has a structure to be attached .
[3] In the state where the inner lid is attached to the inner side of the outer lid, the desorption mechanism is configured such that a rotation preventing projection provided on the outer lid side engages with a slit provided on the inner lid side. Thus, the lidded container according to [2], wherein the lid has a structure that restricts rotation of the inner lid around a central axis with respect to the outer lid.
[ 4 ] The outer lid is attached to the outer peripheral portion of the container body by screwing,
The said canopy is attached to the inner peripheral part of the said inner lid by screwing, The container with a lid | cover as described in any one of said [1] -[3] characterized by the above-mentioned.
[ 5 ] A male screw portion is provided on one side of the canopy and the inner lid, and a female screw portion is provided on the other side,
A stopper mechanism is provided for fixing the canopy to the inner lid in a state where the canopy is attached to the inner lid by screwing the male screw portion and the female screw portion. The lidded container according to [ 4 ], which is characterized in that
[ 6 ] The stopper mechanism includes an engagement convex portion on one side of the male screw portion and the female screw portion, and an engagement concave portion on either side.
After the plug body closes the air hole, the canopy is fixed to the shut-off position with respect to the inner lid by the engagement of the engagement convex portion and the engagement concave portion. 5 ] The container with a lid as described in.
[ 7 ] The stopper mechanism has a stopper on a terminal end side of a thread that forms one of the female screw part and the male screw part,
When the screwing of the male screw part and the female screw part is completed, the start end side of the screw thread forming either the female screw part or the male screw part is brought into contact with the stopper The container with a lid according to the above [ 5 ] or [ 6 ], wherein the canopy is prevented from rotating with respect to the inner lid.
[ 8 ] The lid includes an elastic member that is detachably attached to the bottom surface of the canopy,
The plug is a protrusion provided on the elastic member, and the protrusion closes the air hole by contacting the bottom of the inner lid. [ 7 ] The container with a lid according to any one of [ 7 ].
[ 9 ] The lid body is detachably attached to an attachment hole provided in a bottom surface portion of the inner lid, and has an elastic member provided with the air hole,
The plug is a protrusion provided on a bottom surface of the canopy, and the protrusion closes the air hole by contacting the elastic member. 7 ] The container with a lid | cover as described in any one of.
[ 10 ] The container with a lid according to any one of [1] to [ 9 ], wherein the container body has a vacuum heat insulating structure.

Claims (9)

A container body having an opening at the top;
A lid that opens and closes the opening,
The lid body is an outer lid that is detachably attached to the outer peripheral portion of the container body;
An inner lid that is located inside the outer lid and closes the opening in a state of being fitted inside the container body from the opening;
A canopy that is detachably attached to the outer lid or the inner lid and covers the top opening of the outer lid in a state of being fitted inside the inner lid;
A seal member that is located on the outer periphery of the inner lid and seals between the container body and the inner lid;
A container with a lid, comprising: a plug body that is positioned on a bottom surface portion of the canopy and closes an air hole provided in the bottom surface portion of the inner lid.   The container with a lid according to claim 1, wherein the inner lid is detachably attached to an inner peripheral portion of the outer lid. The outer lid is attached to the outer periphery of the container body by screwing,
The container with a lid according to claim 1 or 2, wherein the canopy is attached to an inner peripheral portion of the inner lid by screwing. A male screw part is provided on one side of the canopy and the inner lid, and a female screw part is provided on either side,
A stopper mechanism is provided for fixing the canopy to the inner lid in a state where the canopy is attached to the inner lid by screwing the male screw portion and the female screw portion. The lidded container according to claim 3. The stopper mechanism has an engaging convex portion on one side of the male screw portion and the female screw portion, and an engaging concave portion on either side.
The canopy is fixed to the shut-off position with respect to the inner lid by the engagement of the engagement convex portion and the engagement concave portion after the plug body closes the air hole. 4. A container with a lid according to 4. The stopper mechanism has a stopper on a terminal end side of a screw thread forming either the female screw portion or the male screw portion,
When the screwing of the male screw part and the female screw part is completed, the start end side of the screw thread forming either the female screw part or the male screw part is brought into contact with the stopper The container with a lid according to claim 4, wherein the canopy is prevented from rotating with respect to the inner lid. The lid includes an elastic member that is detachably attached to the bottom surface of the canopy,
The plug is a protrusion provided on the elastic member, and the protrusion closes the air hole by abutting against the bottom surface of the inner lid. A container with a lid according to any one of the above. The lid body is detachably attached to an attachment hole provided in a bottom surface portion of the inner lid, and has an elastic member provided with the air hole,
The said plug body is a projection part provided in the bottom face part of the said canopy, The said air hole is obstruct | occluded when this projection part contact | abuts to the said elastic member. A container with a lid according to any one of the above.   The said container main body has a vacuum heat insulation structure, The container with a lid | cover as described in any one of Claims 1-8 characterized by the above-mentioned.

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