TWI718037B - Container with lid - Google Patents

Abstract

The present invention provides a container with a lid, including a container body and a lid, wherein the lid further includes an outer lid, an inner lid, a middle plug, a first internal thread portion, and a first external thread portion , A second internal thread and a second external thread, the outer cover can cover the opening of the container body, and the inner edge of the container body is provided with a first internal thread, the first internal thread can be with the device The first external threaded portion on the outer edge of the inner lid is screwed together so that the inner lid can be movably assembled to the container body. In addition, the inner edge of the inner lid is provided with a second internal threaded portion, and the second internal threaded portion It can be screwed with the second external thread part provided on the outer edge of the middle bolt, so that the inner cover can be movably assembled on the middle bolt.

Description

Container with lid

The present invention relates to a container with a lid, in particular to a method that uses the threaded part between the container body and the inner lid to be screwed together so that the inner lid can be movably assembled to the container body, and the threaded part between the inner lid and the outer lid is mutually screwed. Close, so that the inner lid can be movably assembled to the middle stopper, so as to provide a container with lid that can be easily and safely removed.

An existing container with a lid has a heat preservation/cold insulation function by using a container body with a vacuum insulation structure (for example, Japanese Patent Application Publication No. 2013-227034). This kind of container with a lid adopts an inner lid and an outer lid. The lid seals the opening of the container body.

Specifically, a container with a lid includes: a container body with an opening at the upper part; an inner lid that closes the opening with the opening inserted into the inside of the container; In the state of the inner lid, the container body and the inner lid are sealed; and the outer lid is installed on the container body by screwing while covering the opening from the outside. In addition, the container with a lid has a structure in which a sealing gasket (plug body) provided on the outer lid closes the air holes (vent holes) provided on the inner lid.

In a container with a lid, when the outer lid is installed on the container body, the closing gasket abuts against the inner lid, thereby restricting the inner lid from moving upward. Furthermore, in a container with a lid, when the outer lid is removed from the container body, the closure of the air hole by the sealing gasket is released. Thereby, even when the pressure in the container body is reduced (negative pressure), since the external air is introduced through the air hole when the outer cover is removed from the container body, the pressure in the container body is the same as the atmospheric pressure. Therefore, the inner lid is not pulled to the inside of the container body, but the inner lid can be easily removed from the container body.

In the above-mentioned conventional container with a lid, for example, when high-temperature contents are put into the inside of the container body or when the contents in the container body decay and gas is generated, the pressure inside the container body sealed by the inner lid and the outer lid is accompanied by pressure Ascend (in positive pressure) to form a state where the inner cover is pressed against the outer cover. At this time, since the fastening force formed by the screw connection between the container body and the outer lid is increased, it is sometimes difficult to rotate the outer lid in the removal direction. Also, when the outer lid is removed, the pressure inside the container body is violently released, and sometimes a loud noise may be made or the inner lid may fly upward.

In addition, in the above-mentioned conventional container with a lid, for example, after a high-temperature content is put into the inside of the container body, the temperature decreases over time, and the pressure in the container body sealed by the inner lid and the outer lid drops (in Negative pressure) to form a state where the inner lid is pressed against the container body. At this time, since the fastening force formed by the screw connection between the container body and the outer lid is reduced, the outer lid may be easily loosened.

The present invention was made in view of these past situations, and its object is to provide a container with a lid in which the lid can be easily and safely removed.

One of the objects of the present invention is to provide a covered container, including a container body, the upper part of which is provided with an opening; and a lid that can open and close the opening; wherein the lid further includes an outer lid, an inner lid, and a lid. Sealed parts, a middle bolt, a bolt body, a first internal thread part, a first external thread part, a second internal thread and a second external thread part. The outer cover can cover the opening of the container body, the inner cover can be inserted into the inside of the container body through the opening, the sealing member can make the outer edge of the inner cover and the container body form a sealed state, the middle stopper It is located at the central part of the inner side of the outer cover and can be inserted into the inner side of the inner cover. The bolt system is located at the central part of the bottom surface of the middle stopper, and can block the vent hole of the inner cover, in the container body The rim is provided with a first internal thread portion, which can be screwed with the first external thread portion provided on the outer edge of the inner lid, so that the inner lid can be movably assembled to the container body, and the inner lid The inner edge is provided with a second internal thread part, and when the second internal thread part can be screwed with the second external thread part provided on the outer edge of the middle bolt, the inner cover can be movably assembled on the middle bolt.

In order for your reviewers to have a further understanding and understanding of the purpose, technical features and effects of the present invention, the examples and diagrams are described in detail as follows:

In order to be able to refer to Figures 1 and 2, the container 1 with a lid in this embodiment includes a container body 2 and a lid 3, wherein the lid 3 can open and close the upper opening 2a of the container body 2. . The container with lid 1 is a heat preservation tank with a vacuum heat insulation structure for the container body 2 to heat the food (contents) contained in the container body 2 through the vacuum heat insulation structure.

In addition, the container with a lid 1 of the present embodiment has a substantially cylindrical appearance shape as a whole, but the external shape of the container with a lid 1 is not particularly limited, and can be appropriately changed according to the size, design, and the like. In addition, coating or printing may be applied to the outer peripheral surface of the container body 2.

Referring to FIGS. 1, 2, 7 and 11, the container body 2 has a metal outer container 4 and an inner container 5 made of, for example, stainless steel. The container main body 2 is composed of a heat-insulated container which houses a bottomed cylindrical inner container 5 with one end opened inside the bottomed cylindrical outer container 4 with one end opened, and the open ends are joined to each other, In addition, a vacuum insulation layer 6 is provided between the outer containers 4 and the inner containers 5.

For example, in a chamber where the pressure is reduced (vacuum suction) to a high vacuum, a brazing material is used to seal the exhaust hole provided in the center of the bottom surface of the outer container 4, thereby forming the vacuum heat insulation layer 6.

The container body 2 can be provided with functions such as heat preservation or cold preservation by having such a vacuum heat insulation structure. In addition, the container body 2 has such a vacuum insulation structure, and the difference between the internal pressure (vacuum pressure) and the external pressure (atmospheric pressure) is used to form a state where tension is continuously applied to the outer container 4 and the inner container 5 to increase The mechanical strength of the outer container 4 and inner container 5. Thereby, even when the plate 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 bottom surface portion 2b, which is slightly circular; a body portion 2c, which rises slightly cylindrically from the outer edge of the bottom surface portion 2b; and a neck portion 2d, which is slightly cylindrical, and is located in the body portion The upper side of 2c is reduced in diameter. In addition, the upper end of the neck portion 2d is opened in a circular shape as the opening portion 2a of the container body 2. In addition, a first female screw portion 7 is provided on the inner edge of the neck portion 2d (inner container 5). Furthermore, below the first female screw portion 7, an annular protrusion 8 protrudes from the inner edge of the inner container 5 (container body 2) and is provided on the entire circumference.

The lid 3 has: an outer lid 9 covering the opening 2a of the container body 2; an inner lid 10 inserted into the inside of the container body 2 from the opening 2a; and a sealing member 13 installed on the outer edge of the bottom surface of the inner lid 10 , The container body 2 and the inner lid 10 are sealed; the middle plug 11 is located at the inner center of the outer lid 9 and inserted into the inner side of the inner lid 10; and the plug 18 is located at the center of the bottom surface of the middle plug 11 and will be set The vent hole 17 in the center of the bottom surface of the inner cover 10 is closed.

Please refer to Figures 1, 3, 7 and 11, the outer cover 9 is made of heat-resistant resin such as polypropylene, and has: a peripheral wall portion 9a corresponding to the outer diameter of the main body portion 2c of the container body 2 , And slightly cylindrical; and the upper wall portion 9b, which closes the upper part of the peripheral wall portion 9a.

Please refer to Figures 1, 2, 4, and 11, the inner cover 10 is made of heat-resistant resin such as polypropylene, which has: a bottom wall portion 10a, which is slightly circular; and a peripheral wall portion 10b, from the bottom The outer edge of the wall portion 10a rises slightly cylindrically. In addition, on the upper end side of the outer edge of the peripheral wall portion 10b, an annular upper flange portion 10c is provided so as to protrude over the entire circumference.

A first external thread portion 12 is provided on the outer edge of the peripheral wall portion 10b (inner cover 10), which is screwed with the first internal thread portion 7 inside the container body 2 described above. In the cap-attached container 1, the inner cap 10 is movably assembled to the container body 2 by the screwing of the first internal thread portions 7 and the first external thread portion 12.

In addition, the first internal thread portion 7 and the first external thread portion 12 are double-threaded threads having mutually complementary shapes. When a double thread is used, it is possible to attach and detach the inner lid 10 with respect to the container body 2 with a few rotation operations (about 180° in this embodiment).

Specifically, there are two initial positions for the screwing of the first internal thread portion 7 and the first external thread portion 12 in the double thread thread. One thread and the other thread of the double thread thread form a spiral shape at a predetermined interval. , And the beginning of one thread and the beginning of the other thread are around the axis 180

In the cap-attached container 1, the first internal thread portion 7 and the first external thread portion 12 are screwed together, and the container body 2 rotates the inner lid 10 to the right (hereinafter referred to as the "closing direction"), thereby allowing the inner lid to be rotated 10 is installed in the container body 2. On the other hand, when the inner lid 10 is mounted on the container body 2, the container body 2 rotates the inner lid 10 to the left (hereinafter referred to as the "opening direction"), whereby the first female screw portion 7 and the first The screwing of the outer threaded portion 12 removes the inner cap 10 from the container body 2.

The water stop gasket 13 is movably assembled on the outer edge of the bottom surface side of the inner lid 10, which is a ring-shaped sealing member that seals the container body 2 and the inner lid 10, and is made of heat-resistant rubber or elastomer such as silicone. And other elastic members.

On the inner cover 10, an annular lower flange portion 10d is provided so as to protrude from the outer edge of the bottom wall portion 10a in the direction of increasing diameter. The water stop gasket 13 is fitted to the lower flange portion 10d over the entire circumference.

On the other hand, by elastically deforming (stretching) the water stop gasket 13 itself, it can be removed from the lower flange portion 10d. Thereby, the inner cover 10 and the waterproof gasket 13 can be cleaned separately, and the sanitation between the inner cover 10 and the waterproof gasket 13 can be maintained.

In addition, an elastic flange portion 13a is provided on the outer edge of the water stop gasket 13. The elastic flange portion 13a has a shape that is bent downward from the upper end of the outer edge of the water stop gasket 13 and protrudes.

When the inner lid 10 is attached to the container body 2, the elastic flange portion 13 a of the water stop gasket 13 is elastically deformed to form a state in which it is in close contact with the protruding portion 8 over the entire circumference. Thereby, the water-stop gasket 13 can be used to seal the container body 2 and the inner lid 10.

The middle stopper 11 is made of heat-resistant resin such as polypropylene, and has a substantially cylindrical shape with a bottom, and is integrally attached to the center of the bottom surface of the upper wall portion 9b by welding or the like. A heat insulating layer is arranged inside the middle plug 11, and the heat insulating material 14 is made of, for example, a foamed urethane resin, or the heat insulating material 14 can be replaced by air (void) as a heat insulating layer.

A second female screw portion 15 is provided on the inner edge of the peripheral wall portion 10b (inner cover 10). On the other hand, the outer edge of the middle bolt 11 is provided with a second external thread portion 16 screwed with the second internal thread portion 15. In the cover 3, the inner cover 10 is movably assembled to the middle bolt 11 by the screwing of the second internal threaded parts 15 and the second external threaded parts 16.

In addition, the second internal threaded portion 15 is a thread groove of mutually complementary shapes, and the starting end of one thread and the starting end of the other thread are within an angle range of about 30° around the axis 18010. On the other hand, the second external threaded portion 16 and the second internal threaded portion 15 correspond to each other and have complementary shapes. The starting end of one thread and the starting end of the other thread are within an angle range of about 180° around the axis 18011 . In addition, among the second external thread portion 16, what is actually screwed with the second internal thread portion 15 is an angle range of about 30° from the tip. Therefore, since the other parts are not screwed with the second female thread portion 15, it is not necessary to constitute a thread.

In the cover 3, when the cover 3 is viewed from the lower side, the second female threaded portion 15 is screwed to the second male threaded portion 16, and the inner cover 10 is moved to the right with respect to the center bolt 11 (hereinafter referred to as "closed Direction”), whereby the inner cover 10 can be installed on the center bolt 11 at a position where the second internal thread portion 15 and the second external thread portion 16 are screwed together (hereinafter referred to as "installation position"). On the other hand, in the cover 3, when the cover 3 is viewed from the lower side, from the state where the inner cover 10 is attached to the center pin 11, the inner cover 10 is moved to the left relative to the center pin 11 (hereinafter referred to as "opening direction ") By rotating, the screw engagement between the second internal threaded portion 15 and the second external threaded portion 16 can be released, and the inner cover 10 can be removed from the central bolt 11.

Please refer to Figures 1, 2, 4, and 11, the inner cover 10 is provided with a circular vent 17 penetrating the central portion of the bottom wall portion 10a. On the other hand, a plug body 18 that closes the vent hole 17 at the installation position is provided in the center of the bottom surface of the middle plug 11.

The plug 18 is composed of an elastic member such as heat-resistant rubber or elastomer such as silicone. The plug 18 has: a protrusion 18a whose central part is raised into a dome shape; a flange portion 18b extending from the periphery of the protrusion 18a in the direction of increasing diameter; and a cylindrical portion 18c protruding from the side opposite to the protrusion 18a. Cylindrical shape; and the annular groove portion 18d, a notch is formed in the outer edge of the cylindrical portion 18c.

On the other hand, the middle plug 11 has: a fitting recess 11a into which the cylindrical portion 18c is fitted in the center of the bottom surface; and a fitting convex portion 11b which protrudes from the inner edge of the fitting recess 11a and is fitted into the groove portion 18d . Thereby, the plug body 18 is movably attached to the center part of the bottom surface of the middle plug 11.

In the cover 3, when the inner cover 10 is attached to the above-mentioned middle plug 11 by screwing, the protrusion 18a of the plug 18 is elastically deformed and abuts against the surrounding of the vent hole 17, thereby closing the vent hole 17 . Moreover, in the cover 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, the hygiene between the middle plug 11 and the plug body 18 can be maintained.

Please refer to Figures 1 to 6, the cover 3 is equipped with a temporary fixing mechanism 19, and the second internal threaded portion 15 and the second external threaded portion 16 start screwing position (hereinafter referred to as "temporary fixing position") The inner cover 10 is temporarily fixed to the middle bolt 11. The temporarily fixed position is a position where the second internal thread portion 15 and the second external thread portion 16 start to be screwed together, and also is a position where the second internal thread portion 15 and the second external screw portion 16 are unthreaded.

The temporary fixing mechanism 19 has: a locked portion 20 provided on the outer edge of the middle bolt 11; a pair of first elastic pieces 21 provided on the peripheral wall portion 10b of the inner cover 10; and a locking portion 22 provided on each first The front end side of the elastic piece 21.

In addition, the inner cover 10 and the middle bolt 11 are respectively provided with marks (not shown in the figure) indicating the temporarily fixed positions. That is, in the lid body 3, the marks on the inner cover 10 side and the middle bolt 11 side Alignment of the mark can position the inner cover 10 in a temporary fixed position relative to the middle bolt 11.

The locked portion 20 is located below the second external thread portion 16 and is composed of an annular groove portion formed by denting the outer edge of the middle bolt 11 over the entire circumference.

The pair of first elastic pieces 21 are continuous with the peripheral wall portion 10b and are provided at positions facing (opposing) the peripheral wall portion 10b. Specifically, each of the first elastic pieces 21 extends downward from between the slits 23 formed with notches in the periphery thereof. Thereby, the first elastic piece 21 extends downward from between the slits 23, and the front end (lower end) side thereof can be elastically deformed in the diameter-expanding direction.

The locking portion 22 is constituted by a protrusion protruding from the inner edge on the front end (lower end) side of the first elastic piece 21.

In the temporary fixing mechanism 19, at the temporary fixing position, the middle bolt 11 is inserted into the inner cover 10, whereby the pair of first elastic pieces 21 are elastically deformed in the direction of expanding diameter, and at the same time the locking portion 22 is locked to the locked Department 20. Thereby, the inner cover 10 can be temporarily fixed to the middle bolt 11 at the temporary fixing position.

On the other hand, in the temporary fixing mechanism 19, at the temporary fixing position, the pair of first elastic pieces 21 are elastically deformed in the expanding diameter direction, and at the same time, the locked state of the locking portion 22 to the locked portion 20 is released, thereby enabling Remove the inner cover 10 from the middle bolt 11.

As shown in FIGS. 3 and 4, the cover body 3 is provided with a whirl-stop mechanism 24 to restrict the inner cover 10 from rotating relative to the center bolt 11 in the opening direction at the above-mentioned temporary fixing position.

The anti-rotation mechanism 24 includes an outer peripheral side contact portion 25 and an inner peripheral side contact portion 26. The outer peripheral side abutting portion 25 is provided on the outer edge of the middle bolt 11 and is located on the terminal side of the second male threaded portion 16, and is composed of a protrusion that protrudes from the outer circumferential surface of the middle bolt 11 in the expanding diameter direction. The inner peripheral side abutting portion 26 is provided on the inner edge of the inner cover 10 and is located on the starting end side of the second internal thread portion 15, and is composed of a protrusion that protrudes from the inner peripheral surface of the inner cover 10 in the diameter-reducing direction.

In the anti-rotation mechanism 24, in the temporarily fixed position, the outer circumferential side abutting portion 25 and the inner circumferential side abutting portion 26 abut against each other, thereby restricting the inner cover 10 from rotating in the opening direction relative to the center bolt 11. Therefore, the inner cover 10 is temporarily fixed to the middle bolt 11 by the temporary fixing mechanism 19, and at the temporarily fixed position, it can only be rotated relative to the middle bolt 11 in the closing direction.

Please refer to Figures 3, 5, 12, and 13, the cover 3 is provided with a buckle mechanism 27, which gives a buckle feeling when the second internal thread portion 15 and the second external thread portion 16 are screwed together.

The buckle mechanism 27 includes an outer engagement protrusion 28 provided on the outer cover 9 and an inner engagement protrusion 29 provided on the inner cover 10.

The outer engaging convex portion 28 is provided so as to protrude in the diameter-reducing direction from a position facing (opposing) the inner peripheral surface of the peripheral wall portion 9a. In addition, the outer locking convex portion 28 has an inclined surface 28a, and the gradient gradually increases toward the side that rotates the inner cover 10 in the closing direction with respect to the center plug 11.

The inner engaging convex portion 29 is provided on the front end side of the pair of second elastic pieces 30, wherein the pair of second elastic pieces 30 are provided on the peripheral wall portion 10 b of the inner cover 10. The pair of second elastic pieces 30 are continuous with the peripheral wall portion 10b, and are provided at opposite (opposing) positions on the peripheral wall portion 10b. Specifically, each of the second elastic pieces 30 is extended upward from between a pair of slits 31a and 31b in which the upper end of the peripheral wall portion 10b is notched in the vertical direction. In addition, a pair of slits 31a and 31b are located on both sides of the slit 23 that sandwiches the first elastic piece 21.

Thereby, the second elastic piece 30 is formed to be elastically deformable toward the diameter reduction direction on the front end (upper end) side. The inner engagement convex portion 29 protrudes from the front end (upper end) side of the second elastic piece 30 and is more outward than the upper flange portion 10c.

In the buckle mechanism 27, the inner cover 10 is rotated in the closing direction with respect to the middle bolt 11 from the temporarily fixed position, whereby the inner engaging convex portion 29 is in sliding contact with the inclined surface 28a of the outer engaging convex portion 28, and the second The elastic piece 30 is elastically deformed in the diameter-reducing direction. Then, by making the inner engaging convex portion 29 go over the outer engaging convex portion 28, as shown in FIG. 12, the second elastic piece 30 elastically returns to its original position, thereby forming the inner engaging convex portion 29 and the The state where the outer engagement convex portion 28 is engaged.

In the buckle mechanism 27, the inner cover 10 has reached the installation position, that is, the inner cover 10 has been installed on the center bolt 11 by the buckling feeling when the inner engagement protrusion 29 crosses the outer engagement protrusion 28.

On the other hand, in the buckle mechanism 27, by rotating the inner cover 10 in the opening direction relative to the middle bolt 11 from the installation position, the second elastic piece 30 is elastically deformed in the diameter-reducing direction. Then, by making the inner engaging protrusion 29 go over the outer engaging protrusion 28, as shown in FIG. 13, the second elastic piece 30 elastically returns to its original position, thereby forming the inner engaging protrusion 29 and the outer engaging protrusion The part 28 releases the engaged state.

In the buckle mechanism 27, due to the gradient direction of the inclined surface 28a, the resistance when the inner engaging convex portion 29 crosses the outer engaging convex portion 28 in the opening direction is higher than that when the inner engaging convex portion 29 crosses the outer side in the closing direction. The resistance of the convex part 28. Thereby, it is possible to prevent the outer cover 9 (middle bolt 11) at the installation position from being loosened relative to the inner cover 10 inadvertently.

In addition, in this embodiment, the buckle mechanism 27 allows the inner engaging convex portion 29 to pass over the outer engaging convex portion 28 provided with the above-mentioned inclined surface 28a to give a buckle feeling. Conversely, the outer engaging convex portion can also be used When 28 passes over the inner engaging convex portion 29 provided with an inclined surface, a snapping feeling is imparted.

In addition, the strength of the snapping feeling in the snapping mechanism 27 can be adjusted by the shape, surface condition, material, and the like of the inner engaging protrusion 29, the outer engaging protrusion 28, and the second elastic piece 30. On the other hand, it is also possible to make it completely free of snapping feeling.

In the capped container 1 of the present embodiment having the above structure, the inner cap 10 is temporarily fixed to the middle stopper 11 in the temporarily fixed position by the above-mentioned temporary fixing mechanism 19, and the inner cover 10 is temporarily fixed to the middle stopper 11 The inner lid 10 is inserted into the inside of the container body 2 from the opening 2a. Then, from this state, the outer cover 9 is rotated in the closing direction, whereby the first internal thread portion 7 and the first external thread portion 12 start to be screwed together. In addition, due to the screw engagement of the first internal thread portion 7 and the first external thread portion 12, the inner lid 10 is lowered relative to the container body 2, thereby forming a water stop gasket 13 to abut against it as shown in FIG. The state of the protrusion 8.

From this state, by further rotating the outer lid 9 in the closing direction, as shown in Fig. 8, with respect to the inner lid 10 inserted into the inner side of the container body 2, the middle stopper 11 and the outer lid 9 are integrally rotated in the closing direction. The second internal thread portion 15 and the second external thread portion 16 start to be screwed together.

Here, relative to the sliding resistance generated between the water stop gasket 13 and the protrusion 8, the sliding resistance when the inner engagement protrusion 29 of the buckle mechanism 27 passes over the outer engagement protrusion 28 is smaller. Thereby, with respect to the inner lid 10 inserted into the inner side of the container body 2, the middle stopper 11 and the outer lid 9 are integrally rotated in the closing direction, and the inner engaging protrusion 29 can get a snapping feeling when the outer engaging protrusion 28 passes over .

Then, the second internal thread portion 15 and the second external thread portion 16 are screwed together to form a state where the inner cover 10 is mounted on the center bolt 11 at the mounting position. In addition, due to the screw engagement of the second internal threaded portion 15 and the second external threaded portion 16, the middle bolt 11 is lowered relative to the inner cover 10, whereby the bolt body 18 abuts against the periphery of the vent hole 17, thereby forming a vent hole 17 Sealed (occluded) state.

After the second internal thread portion 15 and the second external thread portion 16 are screwed together, as shown in Figure 9, the outer cover 9 is further rotated in the closing direction, whereby the inner cover 10 and the outer cover 9 are integrally rotated in the closing direction At the same time, the first internal thread portion 7 and the first external thread portion 12 are screwed together.

Then, the first female screw part 7 and the first male screw part 12 are screwed together to form a state where the lid 3 is attached to the container body 2. In addition, due to the screw engagement of the first internal thread portion 7 and the first external thread portion 12, the inner cap 10 is lowered relative to the container body 2, whereby the elastic flange portion 13a of the water stop gasket 13 is elastically deformed, and at the same time The entire circumference is in close contact with the protrusion 8 to form a state in which the container body 2 and the inner lid 10 are sealed.

Here, even if the center of the inner lid 10 is installed to a position slightly deviated from the center of the container body 2, the inner lid 10 and the outer lid 9 are integrally rotated in the closing direction, and the inner lid 10 is guided along the formation The shape of the convex portion 8 in the mortar shape is gentle, and the inner cover 10 moves in the direction in which the central axis is aligned. Thereby, since the central axis of the container main body 2 and the inner lid 10 coincide, the water-stop gasket 13 is in close contact with the protruding portion 8 over the entire circumference without deviation, and good water-stop performance can be exerted.

On the other hand, by rotating the outer lid 9 in the opening direction from the state where the lid 3 is attached to the container body 2, as shown in Fig. 10, the middle stopper 11 and the outer lid 9 are integrated with the inner lid 10 Rotate in the opening direction, and at the same time release the screwing of the second internal thread portion 15 and the second external thread portion 16. Thereby, a state is formed in which the inner cover 10 is temporarily fixed to the middle bolt 11 at the temporary fixing position.

Furthermore, as the middle plug 11 rises with respect to the inner cover 10, the abutment of the plug body 18 with respect to the periphery of the vent hole 17 is released, and the vent hole 17 is opened. As a result, the pressure in the container body 2 is released through the vent hole 17, so that the pressure in the container body 2 becomes the same pressure (atmospheric pressure) as the outside.

Then, by further rotating the outer cover 9 in the opening direction from this state, as shown in FIG. 11, the inner peripheral side abutting portion 26 abuts against the outer peripheral side abutting portion 25 of the rotation stop mechanism 24, whereby the inner The cover 10 and the outer cover 9 are integrally rotated in the opening direction, and at the same time the screwing of the first internal thread portion 7 and the first external thread portion 12 is released. In addition, as the inner lid 10 rises with respect to the container body 2, the contact of the water stop gasket 13 with the protrusion 8 is released.

As a result, a state where the lid 3 is removed from the container body 2 is formed. That is, in a state where the inner lid 10 is temporarily fixed to the middle stopper 11 by the temporary fixing mechanism 19, the inner lid 10 and the outer lid 9 can be directly removed from the container body 2 together.

Here, a first external thread portion 12 is provided on the outer edge of the first elastic piece 21. Therefore, when the lid 3 is attached to the container body 2, the first female screw portion 7 and the first male screw portion 12 are screwed together, and the first elastic piece 21 is not elastically deformed toward the enlarged diameter side. Therefore, even after the screwing of the second female threaded portion 15 and the second male threaded portion 16 is released, the jamming will not be released when the screwing of the first female threaded portion 7 and the first male threaded portion 12 is not released. The locked state of the stopping portion 22 with respect to the locked portion 20. Therefore, before the lid 3 is removed from the container body 2, in the state where the inner lid 10 is temporarily fixed to the middle stopper 11 by the temporary fixing mechanism 19, the inner lid 10 will not accidentally be inserted from the middle stopper 11 (outer lid 9). It is safer to remove.

As described above, in the container 1 with a lid of this embodiment, before the first internal thread portion 7 and the first external thread portion 12 are released between the container body 2 and the inner lid 10, the inner lid 10 and the inner lid 10 are released. The screwing of the second internal thread portion 15 and the second external thread portion 16 between the middle bolt 11 releases the abutment of the bolt body 18 with respect to the periphery of the vent hole 17, and the vent hole 17 is opened.

That is, in the container 1 with a lid of this embodiment, in a state where the inner lid 10 is mounted on the container body 2 by screwing, the screwing of the middle plug 11 with respect to the inner lid 10 can be directly released, and the opening is opened. Stoma 17.

Thereby, even when the inner lid 10 is pressed against the outer lid 9 (center plug 11) due to the increase in the pressure in the container body 2, or the pressure in the container body 2 is reduced, the inner lid 10 is pulled toward In the case of the inner side of the container body 2, the screwing of the middle plug 11 with the inner cover 10 can be released without being affected, and the vent hole 17 can be easily opened.

In addition, in the container 1 with a lid of this embodiment, after the vent 17 is opened, the screwing of the first internal thread portion 7 and the first external thread portion 12 between the container body 2 and the inner lid 10 is released to avoid As the pressure in the container body 2 rises, the inner lid 10 and the outer lid 9 (middle plug 11) fly upward, and the lid body 3 can be safely removed from the container body 2.

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

In addition, examples of cases where the pressure in the container body 2 rises (in a positive pressure) include, for example, when a high-temperature content is put into the container body 2, and when the content in the container body 2 decays to generate gas. On the other hand, as a case where the pressure in the container body 2 is reduced (in a negative pressure), for example, after putting high-temperature content into the container body 2, when the content is cooled, or the like.

In addition, the present invention is not necessarily limited to the above-mentioned embodiment, and various changes can be added within the scope not departing from the gist of the present invention.

For example, the above-mentioned container 1 with a lid is inserted into the container body 2 by inserting the inner lid 10 temporarily fixed to the center plug 11 through the above-mentioned temporary fixing mechanism 19, but the inner lid 10 may be inserted into the container body 2 from the opening 2a. After that, the plug 11 is inserted into the inner side of the inner cover 10 to rotate the outer cover 9 in the closing direction.

In this case, by rotating the outer cover 9 in the closing direction, after the first internal thread portion 7 and the first external thread portion 12 start to be screwed together, the water stop washer 13 abuts against the protruding portion 8, and the second inner thread The threaded portion 15 and the second external threaded portion 16 start to be screwed together. Then, by completing the screwing of the second internal thread portion 15 and the second external thread portion 16, as in the case shown in FIG. 7, the state in which the inner cover 10 is attached to the center bolt 11 at the attachment position is formed.

After the second internal thread portion 15 and the second external thread portion 16 are screwed together, the outer cover 9 is further rotated in the closing direction, whereby the inner cover 10 and the outer cover 9 are integrally rotated in the closing direction, and the first internal thread The part 7 and the first external thread part 12 are screwed together. Thereby, as in the case shown in Fig. 8 above, a state where the lid 3 is attached to the container body 2 is formed.

In addition, when the middle bolt 11 is inserted into the inner side of the inner cover 10, even if the middle bolt 11 deviates from the temporarily fixed position relative to the inner cover 10 in the circumferential direction, the outer cover 9 can be rotated in the closing direction to form At the temporary fixing position, the inner cover 10 is temporarily fixed to the middle bolt 11. Therefore, by further rotating the outer lid 9 in the closing direction from this state, the lid 3 can be attached to the container body 2.

In addition, in the container 1 with a lid, the temporary fixing mechanism 19 may be omitted. In this case, after the inner lid 10 is inserted into the inside of the container body 2 from the opening 2a, the center plug 11 is also inserted into the inner lid 10. Then, from this state, the outer cover 9 is rotated in the closing direction, whereby the first internal threaded portion 7 and the first external threaded portion 12 start to be screwed together, the water stop washer 13 abuts against the protruding portion 8, and the second internal thread The portion 15 and the second external thread portion 16 begin to be screwed together. Then, the second internal thread portion 15 and the second external thread portion 16 are screwed together, thereby forming a state where the inner cover 10 is mounted on the center bolt 11 at the mounting position.

After the second internal threaded portion 15 and the second external threaded portion 16 are screwed together, the outer cover 9 is further rotated in the closing direction, whereby the inner cover 10 and the outer cover 9 are integrally rotated in the closing direction, and the first internal threaded portion 7 and the first external threaded part 12 are screwed together. Thereby, a state where the lid 3 is attached to the container body 2 is formed.

On the other hand, from the state in which the lid body 3 is attached to the container body 2, the outer lid 9 is rotated in the opening direction, thereby rotating the center plug 11 and the outer lid 9 in the opening direction with respect to the inner lid 10, and simultaneously releases The second internal thread 15 and the second external thread 16 are screwed together.

Then, by further rotating the outer cover 9 in the opening direction from this state, the inner peripheral side abutting portion 26 abuts against the outer peripheral side abutting portion 25 of the rotation stop mechanism 24, thereby integrating the inner cover 10 and the outer cover 9 When the ground rotates in the opening direction, the screwing of the first internal thread portion 7 and the first external thread portion 12 is released.

Thereby, a state in which the lid 3 can be removed from the container body 2 is formed. In this case, after the outer lid 9 is removed from the container body 2, the inner lid 10 can be removed from the container body 2.

In addition, in the container 1 with a lid, after the first internal thread portion 7 and the first external thread portion 12 start to be screwed together, the water-stop gasket 13 abuts against the protruding portion 8, but a temporary fixing mechanism 19 can also be used. The inner lid 10 temporarily fixed to the middle stopper 11 is inserted into the inside of the container body 2 from the opening 2a, whereby the water stop gasket 13 abuts against the protrusion 8.

By rotating the outer cover 9 in the closing direction from this state, the second internal thread portion 15 and the second external thread portion 16 start to be screwed together. Then, the second internal threaded portion 15 and the second external threaded portion 16 are screwed together, thereby forming a state where the inner cover 10 is mounted on the center bolt 11 at the mounting position.

After the second internal thread portion 15 and the second external thread portion 16 are screwed together, the first internal thread portion 7 and the first external thread portion 12 start to be screwed together. Then, from this state, the outer cover 9 is further rotated in the closing direction, whereby the inner cover 10 and the outer cover 9 are integrally rotated in the closing direction, and at the same time, the first internal thread portion 7 and the first external thread portion 12 are screwed together. Thereby, a state where the lid 3 is attached to the container body 2 is formed.

On the other hand, from the state in which the lid body 3 is attached to the container body 2, the outer lid 9 is rotated in the opening direction, thereby rotating the center plug 11 and the outer lid 9 in the opening direction with respect to the inner lid 10. The screwing of the second internal thread portion 15 and the second external thread portion 16 is released. Thereby, a state is formed in which the inner cover 10 is temporarily fixed to the middle bolt 11 at the temporary fixing position.

Then, by further rotating the outer cover 9 in the opening direction from this state, the inner peripheral side abutting portion 26 abuts against the outer peripheral side abutting portion 25 of the rotation stop mechanism 24, thereby integrating the inner cover 10 and the outer cover 9 When the ground rotates in the opening direction, the screwing of the first internal thread portion 7 and the first external thread portion 12 is released.

Thereby, a state in which the lid 3 can be removed from the container body 2 is formed. That is, in a state where the inner lid 10 is temporarily fixed to the middle stopper 11 by the temporary fixing mechanism 19, the inner lid 10 and the outer lid 9 can be directly removed from the container body 2 together.

In this case, after the inner lid 10 is fitted into the container body 2 from the opening 2a, the outer lid 9 may be rotated in the closing direction from the state in which the center plug 11 is fitted into the inner lid 10. Furthermore, the temporary fixing mechanism 19 described above may be omitted.

In addition, the above-mentioned container 1 with a lid is installed in the middle bolt 11 to close the vent hole 17 provided in the inner lid 10, but it is also possible to install an elastic member provided with a vent hole on the inner lid. 10. Abut the protruding part of the plug body provided in the middle plug 11 to the elastic member, thereby closing the vent hole.

In addition, the present invention is suitable for use in the container body with the above-mentioned vacuum heat insulation structure, and a capped container with heat preservation/cold insulation function. The present invention can be widely applied to the above-mentioned container body with the opening part, and make A container with a lid that opens and closes the opening.

According to, the above are only the preferred embodiments of the present invention. However, the scope of rights claimed by the present invention is not limited to this. Anyone familiar with the art can use the technical content disclosed in the present invention. The equivalent changes that are easily considered should all belong to the protection scope of the present invention.

1: Container with lid 2: container body 2a: opening 2b: bottom face 2c: body part 2d: neck 3: cover 4: Outer container 5: Inner container 6: Vacuum insulation 7: The first internal thread 8: protrusion 9: Outer cover 9a: Peripheral wall 9b: Upper wall 10: inner cover 10a: bottom wall 10b: Peripheral wall 10c: Upper flange 10d: Lower flange 11: Middle bolt 11a: Fitting recess 11b: Fitting convex part 12: The first external thread 13: Water stop gasket (sealing member) 13a: Elastic flange 14: Thermal insulation material 15: The second internal thread 16: The second external thread 17: Vent 18: plug 18a: protrusion 18b: Flange 18c: Cylinder 18d: Ring groove 19: Temporary fixing mechanism 20: Blocked part 21: The first elastic sheet 22: Locking part 23: slit 24: stop mechanism 25: Outer peripheral side abutment part 26: Inner peripheral side abutment part 27: buckle mechanism 28: Outer engagement convex part 28a: Inclined surface 29: Inner engagement convex part 30: second elastic sheet 31a: slit 31b: slit

Figure 1 is an exploded perspective view of the container with lid according to an embodiment of the present invention viewed from above; Figure 2 is an exploded perspective view of the container with lid shown in Figure 1 viewed from below; Figure 3 is a perspective view of the outer lid and middle stopper of the container with lid shown in Figure 1 viewed from below; Figure 4 is a perspective view of the inner lid of the container with lid shown in Figure 1 viewed from the upper side; Figure 5 is a perspective view of the inner lid of the container with lid shown in Figure 1 viewed from below; Figure 6 is a cross-sectional view showing the state where the inner lid is temporarily fixed to the middle stopper in the container with lid shown in Figure 1; Figure 7 is a cross-sectional view showing the state where the water-stop gasket abuts against the protrusion in the container with a lid shown in Figure 1; Figure 8 is a cross-sectional view showing the state in which the inner lid is installed on the central stopper in the container with lid shown in Figure 1; Figure 9 is a cross-sectional view showing the state where the outer cover is installed on the container body in the container with a lid shown in Figure 1; Figure 10 is a cross-sectional view showing a state in which the second internal threaded portion and the second external threaded portion are released in the cap-attached container shown in Figure 1; Figure 11 is a cross-sectional view showing a state in which the first internal threaded portion and the first external threaded portion are released in the cap-attached container shown in Figure 1; Figure 12 shows the state where the inner engaging convex portion crosses the outer engaging convex portion when the outer cover is rotated in the closing direction in the buckle mechanism of the container with the lid shown in the first figure. Three-dimensional diagram; and Figure 13 shows the state where the inner engaging convex part has passed over the outer engaging convex part of the buckle mechanism of the container with lid shown in Figure 1 when the outer cover is rotated in the opening direction. Stereograph.

1: Container with lid

2: container body

2a: opening

2b: bottom face

2c: body part

2d: neck

3: cover

4: Outer container

5: Inner container

6: Vacuum insulation

7: The first internal thread

8: protrusion

9: Outer cover

9a: Peripheral wall

9b: Upper wall

10: inner cover

10a: bottom wall

10b: Peripheral wall

10d: Lower flange

11: Middle bolt

11a: Fitting recess

11b: Fitting convex part

12: The first external thread

13: Water stop gasket (sealing member)

13a: Elastic flange

14: Thermal insulation material

15: The second internal thread

16: The second external thread

17: Vent

18: plug

18a: protrusion

18b: Flange

18c: Cylinder

18d: Ring groove

Claims (15)

A container with a lid, comprising: A container body, the upper part of which is provided with an opening, and the inner edge of which is provided with a first internal thread; and A cover body can be assembled to the container body and can open and close the opening, wherein the cover body has at least an outer cover, an inner cover, a sealing member, a middle plug and a plug body. The lid can cover the opening; the inner lid can be inserted into the inside of the container body through the opening, a vent hole is provided in the center, and a first external thread is provided on the outer edge to be screwed to the first An internal thread enables the inner lid to be movably assembled to the container body, and the inner edge of the inner lid is provided with a second inner thread; the sealing member is arranged on the outer edge of the inner lid so that the inner A sealed state is formed between the lid and the container body; the middle plug will be located at the center of the inner side of the outer lid, and can be inserted into the inner side of the inner lid, and the outer edge is provided with a second outer threaded portion for screwing Fitted to the second internal thread part, the middle bolt can be movably assembled to the inner cover; the bolt body is located at the center of the bottom surface of the middle bolt and can block the vent hole of the inner cover. The container with lid as described in claim 1, further including: At least one temporary fixing mechanism is arranged at the position where the second internal thread portion and the second external thread portion are initially screwed together, so that the inner cover can be temporarily fixed to the middle bolt, and the temporary fixing mechanism When the inner cover is temporarily fixed to the middle bolt, the second internal thread part can be screwed with the second external thread part, and then the inner cover is installed on the middle bolt. The container with a lid according to claim 2, wherein, in a state where the temporary fixing mechanism is temporarily fixed to the middle stopper, and the inner lid is inserted into the inside of the container body from the opening, the outer lid is rotated in the closing direction , So that the first internal thread can begin to be screwed with the first external thread, and when the sealing member abuts against a protruding portion of the inner edge of the container body, the second internal thread The part can start screwing with the second external thread part. The container with a lid according to claim 1, wherein the inner lid is inserted into the inside of the container body from the opening portion, and the outer lid is rotated in the closing direction in a state where the center plug is inserted into the inner lid of the inner lid, So that the first internal thread portion can begin to be screwed with the first external thread portion, and when the sealing member abuts against the protruding portion of the inner edge of the container body, the second internal thread portion can Start screwing with the second external thread part. The container with a lid according to claim 1, wherein the inner lid is inserted into the inner side of the container body from the opening, so that the sealing member abuts against the protruding portion of the inner edge of the container body, and the middle plug In the state of being inserted into the inner side of the inner cover, the outer cover is rotated in the closing direction, so that the second internal thread part and the second external thread part can start to be screwed together. The container with a lid according to claim 2, wherein the temporary fixing mechanism is temporarily fixed to the middle stopper, the inner lid is inserted into the inside of the container body from the opening, and the sealing member abuts against the container body In the state of the protruding part of the inner edge, the outer cover rotates in the closing direction, so that the second internal thread part and the second external thread part can start to be screwed together. The container with a lid according to any one of claims 1 to 6, wherein, in a state where the lid body is mounted on the container body and the outer lid is rotated in the opening direction, the second internal threaded portion is released from the For the screwing of the second external thread part, an inner peripheral side abutting portion of the inner edge of the inner cover and an outer peripheral side abutting portion of the outer edge of the middle bolt abut against each other, and the inner cover and the outer cover are together In the state of rotating in the opening direction, the first internal thread portion is released from the screw engagement with the first external thread portion to remove the lid from the container body. The cap-attached container according to claim 7, wherein at the position where the second internal thread portion and the second external thread portion are released, the abutment of the plug body relative to the periphery of the vent hole is released to form The state of opening the vent. 3. The capped container described in items 3 and 6, wherein the temporary fixing mechanism includes: A locked part is attached to the outer edge of the middle bolt; At least one first elastic piece is arranged on the peripheral wall of the inner cover and can be elastically deformed in the direction of the diameter expansion of the inner cover; and A locking portion is arranged on the first elastic sheet and can be locked with the locked portion. According to claim 9 of the container with a lid, the first external thread portion is disposed on the outer edge of the first elastic sheet. According to claim 10, the container with a lid further includes at least one buckle mechanism, and when the second internal thread portion and the second external thread portion are screwed together, the buckle mechanism can give a buckle feeling. The container with a lid according to claim 11, wherein the buckle mechanism includes: At least one outer engaging protrusion is provided on the outer cover; and At least one inner engaging convex portion is provided on the inner cover, and a buckle feeling can be given when either one of the outer engaging convex portion and the inner engaging convex portion crosses the other. The container with a lid according to claim 12, wherein the buckle mechanism further includes: At least one second elastic piece is arranged on the inner cover and can be elastically deformed in the diameter reduction direction of the inner cover, and the inner engaging convex portion is provided on the inner cover. The container with a lid according to claim 13, wherein, in a state where either one of the outer engaging convex portion and the inner engaging convex portion crosses the resistance formed by the other, the outer lid opens in the opening direction The resistance of rotation will be greater than the resistance of the outer cover rotating in the closing direction. The container with a lid according to claim 14, wherein the container body has a vacuum insulation structure.

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