TWI796158B - Lid assembly and container with lid - Google Patents

Abstract

The present invention relates to a cover assembly and a container with a cover. The container with a cover includes the cover assembly and a container body, wherein the cover assembly includes an outer cover, an inner cover and a waterproof gasket, and the outer cover is used to cover An upper opening of the container body; the inner cover is used to insert into the inner side of the container body from the upper opening, and a pressure release part is provided on the outer periphery thereof. When the container body rises to a predetermined pressure, The pressure release part will release the pressure in the container body; the waterproof gasket is used to seal the inner side of the container body and the inner cover, which is composed of an annular elastic sealing member, and the aforementioned annular elastic seal The member is in contact with an overhanging portion of the container body, and the waterproof gasket is installed on the inner cover under the condition of fitting in a groove of the inner cover.

Description

Lid assembly and container with lid

The invention relates to a cover assembly and a container with a cover.

In the past, a known container with a cover has a cover assembly (plug body), which can be detachably installed on the head and neck of a container body with an opening at the upper end, thereby blocking the upper opening of the container body (for example, Japan Patent No. 5494717 and Japanese Patent No. 5841220).

Specifically, the conventionally disclosed container with a lid has an inner lid, a waterproof gasket and an outer lid, and the inner lid blocks the opening in a state of being inserted into the inner side of the container body from the upper opening of the container body; the waterproof gasket The pad seals between the container body and the inner cover in a state of being mounted on the inner cover; the outer cover is detachably mounted on the container body by screwing in a state covering the upper end opening of the container body from the outside. When the outer cover is mounted on the container body, the inner cover can be restricted from moving upward by contacting the inner cover.

It is worth mentioning that, in the above-mentioned known container with a lid, when the container body is filled with high-temperature contents or the contents of the container body are corrupted to generate gas, the container body sealed by the inner cover and the outer cover The pressure will rise (positive pressure), and the inner cap will be squeezed toward the outer cap as the pressure rises.

At this time, the fastening force caused by the screwing between the container body and the outer cover increases, which may make it difficult for the outer cover to rotate in the direction of disassembly (the direction of opening the container). Also, when the outer cover is removed (opening the container), since the pressure of the container body is released vigorously, loud noises may be caused or the inner cover may pop up upwards.

The present invention is proposed in view of such known problems, and the purpose is to provide a lid assembly that can prevent the pressure inside the container body from rising and can easily and safely open the lid assembly of the container, and by having the lid assembly, the user experience can be improved. container with a lid.

One object of the present invention is to provide a cover assembly, which is detachably installed on a container body with an opening at the upper end, including an outer cover, an inner cover and a waterproof gasket, the outer cover is used to cover an upper opening of the container body; the inner cover is used to insert from the upper opening of the container body into the inner side of the container body, and the outer periphery of the inner cover is provided with a pressure release part, which is located on the container itself When the internal body rises to a predetermined pressure, the pressure release part will release the pressure in the container body; the waterproof gasket is located on the outer periphery of the inner cover, which is used to seal the inner side of the container body and the inner cover , the waterproof gasket is composed of an annular elastic sealing member, and the aforementioned annular elastic sealing member is in contact with an overhanging portion protruding from the inner side of the container body, and the waterproof gasket is fitted in the set It is installed on the inner cover under the condition of a groove in the outer peripheral portion of the inner cover.

Another object of the present invention is to provide a cover assembly, which is detachably installed on a container body with an opening at the upper end, including an outer cover, an inner plug and a waterproof gasket, the outer cover is Used to cover the outer side of the container body; the inner plug is located in the center of the inner side of the outer cover, and is used to insert into the inner side of the container body from an upper end opening of the container body, and the outer peripheral part of the inner plug is provided with a pressure The release part, when the container body rises to a predetermined pressure, the pressure release part will release the pressure in the container body; the waterproof gasket is located on the outer periphery of the inner plug, which is used to seal the container body Between the inner side and the inner plug, the waterproof gasket is composed of a ring-shaped elastic sealing member, and the aforementioned ring-shaped elastic sealing member is in contact with an overhang part protruding from the inner side of the container body. The liner is attached to the inner plug while being fitted in a ring-shaped groove provided on the outer peripheral portion of the inner plug.

Another object of the present invention is to provide a cover assembly, which is detachably installed on a container body with an opening on the upper end, including a cover body and a cover body, and the cover body system is used to install on the container body The head and neck of the container body is provided with a liquid flow hole communicating with the inner side of the container body. The cover body includes an inner cylinder part and a waterproof gasket, wherein the inner cylinder part is used to remove the liquid from the container body. The opening at the upper end of the body is inserted into the inner side of the container body; the waterproof gasket is located at the outer periphery of the inner cylinder to seal between the inner side of the container body and the inner cylinder, and the waterproof gasket is formed by a ring The above-mentioned annular elastic sealing member is in contact with an overhanging part protruding from the inner side of the container body, and the waterproof gasket is fitted on the ring-shaped outer peripheral part of the inner cylinder part. In the case of a ditch, it is installed on the inner cylinder; the cover system is detachably installed on the cover body in a screwed manner so as to be able to switch the liquid flow hole. The cover body includes an outer cover, an inner plug and a The cover gasket, wherein the outer cover is used to cover the outer side of the cover body; the inner plug is located in the center of the inner side of the outer cover, and is inserted into the inner side of the cover body to block the liquid flow hole; the inner cylinder The outer peripheral portion of at least one of the inner plug and the inner plug is provided with a pressure release portion, and when the pressure in the container body rises to a predetermined pressure, the pressure release portion will release the pressure in the container body; the lid gasket is Consisting of an annular elastic sealing member abutting against the entire inner peripheral surface of the container body, the lid gasket is attached to the inner plug while being fitted in a ring-shaped groove provided on the outer peripheral portion of the inner plug.

Optionally, the pressure release part has a recess or a notch communicating with the inner side of the container body through the groove, and the elastic sealing member will block the groove when the elastic sealing member is fitted into the groove When the container body rises to a predetermined pressure, the elastic sealing member is elastically deformed, so that the groove and the recess or the notch are in a communication state , so that the pressure in the container body can be released to the outside through the recess or the notch.

Optionally, the recess or the notch is formed by at least a partial depression or cutout of a side surface forming the upper side of the groove.

Optionally, the recesses or the notches are arranged at equal intervals along the side of the groove.

Another object of the present invention is to provide a container with a lid, which has the lid assembly as described in the foregoing object, and a container body on which the lid assembly is installed.

Optionally, the container body has a vacuum insulation construction.

As mentioned above, according to the present invention, it is possible to provide a cap assembly that can prevent the pressure inside the container body from rising, whereby the cap assembly of the container can be opened easily and safely, and provide a belt cap that can improve user experience by having the cap assembly. container.

In order to facilitate your review committee to further understand and understand the purpose, technical features and effects of the present invention, the embodiments are hereby combined with the drawings, and the details are as follows:

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

Firstly, a first embodiment of the present invention, a container with a lid 100A having a lid assembly 1A as shown in FIGS. 1 to 3 will be described.

Fig. 1 is a schematic cross-sectional view of the structure of a container with a lid 100A with a lid assembly 1A according to the first embodiment of the present invention; Fig. 2 is an exploded schematic view of the lid assembly 1A and container body 2A shown in Fig. 1 viewed from the lower side; Fig. 3 is a schematic side view of the structure of the inner cover of the cover assembly 1A shown in FIG. 1 .

The container 100A with a lid of this embodiment, as shown in FIGS. 1 and 2 , has a lid assembly 1A of this embodiment and a container body 2A that can be detachably installed on the lid assembly 1A.

The container with a lid 100A is a thermal insulation tank, and the beverage (content) contained in the container main body 2A can be kept warm by the container main body 2A having a vacuum insulation structure.

Specifically, the container body 2A has a bottomed cylindrical outer container 3 and an inner container 4 formed of, for example, stainless steel, and has a dual structure in which the inner container 4 is housed in the outer container 3 and their mouths are joined to each other. container.

Moreover, a vacuum heat insulating layer 5 is provided between the outer container 3 and the inner container 4 . The vacuum heat insulating layer 5 is formed by plugging the exhaust hole provided in the center of the bottom surface of the outer container 3 in a chamber that is depressurized to a high vacuum (vacuum suction).

The container body 2A has a substantially circular bottom 2a, a substantially cylindrical main body 2b rising from the outer periphery of the bottom 2a, and a substantially cylindrical head and neck 2c formed in a substantially cylindrical shape with a reduced diameter at the upper end of the main body 2b. Moreover, the upper stage part opening of the head and neck part 2c is circular, and is used as the upper end opening part 2d of the container main body 2A.

Moreover, the internal thread part 6 is provided in the inner peripheral surface of the neck part 2c (inner container 4). Furthermore, a ring-shaped overhanging portion 7 protrudes from the entire circumference of the inner peripheral surface of the inner container 4 (container body 2A) below the female thread portion 6 .

The appearance shape of the container body 2A in this embodiment is approximately cylindrical. However, the appearance shape of the container body 2 is not particularly limited, and can be appropriately changed in accordance with the size or design. Moreover, the outer peripheral surface of 2 A of container main bodies may be painted or printed.

Cover assembly 1A of present embodiment, please refer to shown in Figure 1 to 3, this cover assembly 1A has outer cover 8, inner cover 9, waterproof liner 10, inner plug 11 and plug body 13, wherein, outer cover 8 is used To cover the upper opening 2d of the container body 2A; the inner cover 9 is used to insert from the upper opening 2d into the inner side of the container body 2A; the waterproof gasket 10 is located on the outer periphery of the inner cover 9 to seal the inner side of the container body 2A Between the inner cover 9; the inner plug 11 is located at the center of the inner side of the outer cover 8 to be embedded into the inner side of the inner cover 9; Air vent 12 in the center of the bottom surface.

The outer cover 8 can be made of a heat-resistant resin such as polypropylene, and has a substantially cylindrical peripheral wall portion 8a that matches the outer diameter of the main body portion 2b of the container body 2A, and an upper wall portion 8b for blocking the peripheral wall portion 8a. .

The inner cover 9 is made of heat-resistant resin such as polypropylene, and has a substantially circular bottom wall 9a and a substantially cylindrical peripheral wall 9b extending from the outer periphery of the bottom wall 9a. Moreover, the upper stage side of the outer peripheral surface of the peripheral wall part 9b has the ring-shaped upper side flange part 9c protrudingly provided all around.

On the outer peripheral surface of the peripheral wall portion 9b (inner cap 9 ), a male screw portion 14 capable of screwing into the female screw portion 6 on the container main body 2A side is provided. In the cap assembly 1A, the inner cap 9 can be detachably attached to the container body 2A by screwing the female thread parts 6 and the male thread parts 14 .

In addition, the female thread portion 6 and the male thread portion 14 are formed by double threads with complementary shapes. When using a double-strand thread, the inner cover 9 can be disassembled by a small rotation operation (about 180 degrees in this embodiment) of the container body 2A.

The waterproof gasket 10 is made of, for example, heat-resistant rubber such as silicon rubber or an annular elastic sealing member such as elastomer. The waterproof gasket 10 is detachably attached to the inner cover 9 in a state of being fitted in an annular groove portion 15 provided on the outer peripheral portion of the inner cover 9 .

On the other hand, the waterproof packing 10 can be taken out from the inner side of the inner cover 9 by elastically deforming (elastically stretching) itself. Thereby, the waterproof gasket 10 and the inner cover 9 can be cleaned separately, and the hygiene between the waterproof gasket 10 and the inner cover 9 can be maintained.

Moreover, the outer peripheral part of the waterproof packing 10 is provided with the elastic flange part 10a. The elastic flange portion 10a protrudes from the upper end of the outer peripheral surface of the waterproof packing 10 downward while being bent in a full circle.

When the inner cover 9 is inserted into the inside of the container body 2A, the waterproof gasket 10 gradually abuts against the overhanging portion 7 of the container body 2A due to the elastic deformation of the elastic flange portion 10a, thereby forming a full circle with the overhanging portion 7 Close state. Thereby, the waterproof packing 10 can seal (watertight) between the inner side of the container main body 2A and the inner cover 9 .

The inner plug 11 is made of heat-resistant resin such as polypropylene, has a bottomed and substantially cylindrical shape, and is integrally attached to the center of the lower surface of the upper wall portion 8b (outer cover 8) by welding or the like. Inside the inner plug 11, a heat insulating material 16 formed of, for example, polyurethane foam resin or the like is provided as a heat insulating layer. In addition, air (void) may be used instead of the heat insulating material 16 as the heat insulating layer.

The upper section of the peripheral wall portion 9b (inner cover 9) is provided with an elastic buckle portion 17 formed by notching a part of the peripheral wall portion 9b in the vertical direction. On the other hand, an embedding groove 18 for embedding the inner cap 9 is provided on the outer peripheral surface of the inner plug 11 . When the inner cover 9 of the cover assembly 1A is inserted into the outer cover 8 , the elastic buckle portion 17 is elastically deformed and fitted into the insertion groove 18 , so that the inner cover 9 can be detachably mounted on the inner plug 11 .

The inner cover 9 is provided with a circular air hole 12 penetrating through the central portion of the bottom wall portion 9a. On the other hand, a plug body 13 capable of blocking the vent hole 12 is provided at the center of the bottom surface of the inner plug 11 .

The plug body 13 is made of elastic members such as heat-resistant rubber such as silicone rubber or elastic body. The plug body 13 has a protruding portion 13a, a flange portion 13b, a cylindrical portion 13c and an annular groove portion 13d, wherein the protruding portion 13a expands the central part of the plug body 13 into a dome shape; the flange portion 13b is Extending from the periphery of the protrusion 13a in the diameter-expanding direction; the cylindrical portion 13c protrudes in a cylindrical shape from the side opposite to the protrusion 13a; the groove 13d is formed by notching the outer peripheral surface of the cylindrical portion 13c.

On the other hand, the inner plug 11 has a fitting concave portion 11a and a fitting convex portion 11b, wherein the fitting concave portion 11a is provided at the center of the bottom surface of the inner plug 11 for the cylindrical portion 13c to fit into; the fitting convex portion 11b is self-fitting The inner peripheral surface of the engaging recessed part 11a protrudes and fits in the groove part 13d. Thereby, the plug body 13 is detachably mounted on the center of the bottom surface of the inner plug 11 .

When the cap assembly 1A is installed on the inner plug 11 by screwing the inner cap 9 , the protruding portion 13 a of the plug body 13 will abut against the periphery of the vent hole 12 while being elastically deformed, thereby blocking the vent hole 12 . Moreover, since the cap assembly 1A can remove the plug body 13 from the inner plug 11, the inner plug 11 and the plug body 13 can be cleaned separately, so the hygiene between the inner plugs 11 and the plug body 13 can be maintained.

In particular, the cap assembly 1A of this embodiment is provided with a pressure release portion 20 on the outer periphery of the inner cap 9, and the pressure release portion 20 releases the pressure in the container body 2A when the container body 2A rises to a predetermined pressure.

Also, when the pressure in the container body 2A rises (becomes a positive pressure), the above-mentioned pressure rise is, for example, when a high-temperature content is filled in the container body 2A or when the content of the container body 2A is corrupted to generate gas.

The pressure release part 20 has a recess or a notch (the notch in this embodiment) 20 a, which can communicate with the inner side of the container body 2 through the groove 15 . Specifically, the notch 20 a is formed by notching a part of the outer peripheral portion of the inner cover 9 at least on the upper side of the groove 15 .

Moreover, the number of arrangement|positioning notch part 20a may arrange|position one, and may arrange|position a plurality. When arranging a plurality of notches 20a, it is preferable to arrange them at equal intervals in the circumferential (side) direction of the groove portion 15 . Moreover, if the width along the circumferential direction (that is, side direction) of the notch part 20a is too wide, leakage may be caused, so it is preferable to set it within an angle range of 60 degrees or less.

In the cover assembly 1A of the present embodiment, when the waterproof gasket 10 is fitted into the groove 15 , the waterproof gasket 10 isolates the gap between the groove 15 and the notch 20 a. Moreover, the inside of the container main body 2A and the inner lid 9 are sealed (watertight) by the waterproof packing 10 .

In this state, when the inside of the container body 2A rises to a predetermined pressure (such as above 200kPa and below 800kPa), the waterproof gasket 10 will elastically deform, so that the groove 15 and the notch 20a will be in a communication state. Thereby, the pressure inside the container body 2A is released to the outside through the notch 20a.

In addition, when a plurality of notches 20a are provided, the setting value of the elastic deformation pressure of the waterproof gasket 10 can be adjusted by adjusting individual changes in the width along the circumferential direction.

On the other hand, after the pressure in the container body 2A is released, the waterproof gasket 10 elastically recovers to isolate the gap between the groove portion 15 and the notch portion 20a. As a result, the space between the inside of the container body 2A and the inner lid 9 is again airtight (watertight).

Therefore, the fastening force between the female screw portion 6 on the side of the container body 2A and the male screw portion 14 on the side of the inner cap 9 in the container with a cap 100A having the cap assembly 1A of the present embodiment does not follow the tightening force in the container body 2A. The pressure rises and increases, so that the outer cover 8 will not be difficult to rotate in the direction of opening the container, and the cover assembly 1A can be easily removed from the container body 2A.

In addition, the container with lid 100A of this embodiment can prevent the lid assembly 1A from popping up due to the rising pressure in the container body 2A when the lid assembly 1A is detached from the container body 2A.

As mentioned above, the capped container 100A of this embodiment can prevent the pressure in the container body 2A from rising, and can easily and safely open the cap assembly 1A. In addition, not only good sealing can be maintained, but also the operability of the cap assembly 1A when opening the container can be improved. Therefore, the container with a lid 100A having such a lid assembly 1A can improve user experience.

The cover assembly 1A of this embodiment is configured such that the inner cover 9 is detachably screwed onto the container body 2A, but it may also be configured such that the outer cover 8 is detachably screwed onto the container body 2A.

Next, a second embodiment of the present invention, a container with a lid 100B having a lid assembly 1B as shown in FIGS. 4 to 6 will be described.

Fig. 4 is a schematic cross-sectional view of the structure of a container with a lid 100B having a lid assembly 1B according to a second embodiment of the present invention; Fig. 5 is an exploded schematic view of the lid assembly 1B and the container body 2B shown in Fig. 4 viewed from the lower side; Fig. 6 is a schematic side view of the structure of the cover assembly 1B shown in FIG. 4 . In addition, in the following description, description will be omitted for portions equivalent to those of the lid assembly 1A and the container body 2A described above, and the same symbols will be assigned in the drawings.

The lidded container 100B of this embodiment, as shown in FIGS. 4 and 5 , has a lid assembly 1B of this embodiment, and a container body 2B on which the lid assembly 1B is detachably installed.

The container with a lid 100B is a tumbler, and the beverage (content) contained in the container body 2B can be kept warm by the container body 2B having a vacuum insulation structure.

Specifically, the container body 2B is longer than the container body 2A and has a shape that gradually expands upwards, and its other structures are the same as the container body 2A.

The cover assembly 1B of this embodiment is shown in FIGS. 4 to 6 . The cover assembly 1B is a plug body used to block the upper opening 2 d of the container body 2B. Specifically, the lid assembly 1B has a lid body 30 that can be screwed onto the container body 2B while covering the upper end opening 2d of the container body 2B.

The cover body 30 has an outer cover 31, an inner plug 32 and a waterproof gasket 33, wherein the outer cover 31 is used to cover the upper opening 2d of the container body 2B; the inner plug 32 is located in the center of the inner side of the outer cover 31 and can be opened from the upper end Part 2d is embedded into the inner side of the container body 2B; the waterproof gasket 33 is located on the outer peripheral portion of the inner plug 32 and can be used to seal between the inner side of the container body 2B and the inner plug 32 .

The outer cover 31 can be made of, for example, heat-resistant resin such as polypropylene or Tritan (registered trademark), and has a peripheral wall portion 31a and an upper wall portion 31b. Cylindrical; the upper wall portion 31b is used to block the upper section of the peripheral wall portion 31a.

The inner plug 32 can be made of, for example, heat-resistant resin such as polypropylene or Tritan (registered trademark), and has a substantially circular bottom wall portion 32a, and a substantially cylindrical peripheral wall portion extending from the periphery of the bottom wall portion 32a. 32b.

The inner plug 32 is located at the center of the inner side of the outer cover 31, and the peripheral wall portion 32b is integrally mounted on the center of the lower surface of the upper wall portion 31b by welding or the like. And the inside of the inner plug 32 is not limited to only disposing the above-mentioned heat insulating material 16 , but also can be provided with air (gap) as the heat insulating layer.

In addition, a male screw portion 34 for screwing into the female screw portion 6 on the side of the container body 2B is provided on the outer peripheral surface of the peripheral wall portion 32b (inner plug 32). In the cap assembly 1B, the inner plug 32 (cap body 30 ) can be detachably mounted on the container body 2B by screwing the female thread portion 6 and the male thread portion 34 .

In addition, the female thread portion 6 and the male thread portion 34 are formed by double threads with complementary shapes. When using a double-strand thread, the container body 2B can be disassembled and assembled with a small rotation operation (about 180 degrees in this embodiment).

The waterproof packing 33 is made of heat-resistant rubber such as silicone rubber or an annular elastic sealing member such as elastomer. The waterproof packing 33 is detachably attached to the inner plug 32 in a state of being fitted in an annular groove portion 35 provided on the outer peripheral portion of the inner plug 32 .

On the other hand, the waterproof packing 33 can be taken out from the inner side of the inner plug 32 by elastically deforming (elastically stretching) itself. Thereby, the waterproof liner 33 and the inner plug 32 can be cleaned separately, and the sanitation between the waterproof liner 33 and the inner plug 32 can be maintained.

In addition, a plurality of (two in this embodiment) elastic flange portions 33 a arranged in the vertical direction may be provided on the outer peripheral portion of the waterproof packing 33 . The elastic flange portion 33a has a shape protruding from the outer peripheral surface of the waterproof packing 33 in the diameter-expanding direction over the entire circle.

When the inner plug 32 is inserted into the inside of the container body 2B, the waterproof gasket 33 abuts against the overhang portion 7 of the container body 2B while being elastically deformed by the elastic flange portion 33a, forming a complete circle with the overhang portion 7 Closed state. Thereby, the space between the inner side of the container body 2B and the inner plug 32 can be sealed (watertight) by the waterproof packing 33 .

In particular, the cap assembly 1B of this embodiment is provided with a pressure release portion 40 on the outer periphery of the inner plug 32, which can release the pressure in the container body 2B when the pressure in the container body 2B rises to a predetermined pressure.

The pressure releasing portion 40 has a recess or a notch (a recess in this embodiment) 40 a, which can communicate with the inner side of the container body 2B through the groove 35 . Specifically, the recessed portion 40 a is formed by denting at least a part of the side surface forming the upper side of the groove portion 35 in the outer peripheral portion of the inner plug 32 .

In addition, the number of arrangement|positioning recessed part 40a may arrange|position one, and may arrange|position a plurality. When arranging the plurality of recesses 40a, it is preferable to arrange them at equal intervals in the circumferential direction (ie, side surface direction) of the groove portion 35 . In addition, if the width of the concave portion 40 a in the circumferential direction is too wide, leakage may occur, so it is preferable to provide the concave portion 40 a within an angle range of 60 degrees or less.

In the cover assembly 1B of this embodiment, when the waterproof gasket 33 is fitted into the groove 35 , the waterproof gasket 33 isolates the groove 35 from the recess 40 a. In addition, the space between the inner side of the container body 2B and the inner plug 32 is sealed (watertight) by the waterproof packing 33 .

In this state, when the inside of the container body 2B rises to a predetermined pressure (such as above 200kPa and below 800kPa), the waterproof gasket 33 will elastically deform, so that the groove 35 and the recess 40a will be in a communication state. Thereby, the pressure inside the container body 2B is released from the recess 40a to the outside.

In addition, when a plurality of recesses 40a are provided, the setting value of the elastic deformation pressure of the waterproof packing 33 can be adjusted by adjusting individual changes in width along the circumferential direction.

On the other hand, after the pressure in the container body 2B is released, the waterproof gasket 33 elastically returns to isolate the groove 35 from the recess 40a. As a result, the space between the inside of the container body 2B and the inner plug 32 becomes airtight (watertight) again.

Therefore, the fastening force between the female thread portion 6 on the side of the container body 2B and the male thread portion 34 on the side of the inner plug 32 in the capped container 100B having the cap assembly 1B of the present embodiment does not follow the tightening force in the container body 2B. As the pressure rises, the outer cap 31 will not be difficult to rotate in the direction of opening the container, and the cap body 30 (cap assembly 1B) can be easily removed from the container body 2B.

Also, the container with lid 100B of this embodiment can prevent the lid body 30 (lid assembly 1B) from facing upward due to the pressure rising in the container body 2B when the lid body 30 (lid assembly 1B) is removed from the container body 2B. side pop up.

As mentioned above, the capped container 100B of this embodiment can prevent the pressure in the container body 2B from rising, and can easily and safely open the cap body 30 (cap assembly 1B). Moreover, not only good sealing can be maintained, but also the operability of the cap body 30 (cap assembly 1B) can be improved when opening the container. Therefore, the container with a lid 100B having such a lid assembly 1B can improve user experience.

The cap assembly 1B of this embodiment is configured such that the inner plug 32 is detachably mounted on the container body 2B by screwing, but it may also be configured such that the outer cap 31 is detachably mounted on the container body 2B by screwing.

Next, a third embodiment of the present invention, a container with a lid 100C having a lid assembly 1C as shown in FIGS. 7 to 12 will be described.

7 is a schematic cross-sectional view of the structure of a container with a lid 100C having a lid assembly 1C according to a third embodiment of the present invention; FIG. 8 is an exploded schematic view of the lid assembly 1C and container body 2C shown in FIG. 7 viewed from the lower side; FIG. 9 is an exploded schematic view of the cover body 51 and waterproof gasket 55 that the cover assembly 1C shown in Figure 7 is observed from the bottom side; Figure 10 is a side schematic view of the structure of the cover body 51 shown in Figure 9; View the exploded schematic view of the cover body 52 and the cover gasket 60 of the cover assembly 1C shown in FIG. 7 from the lower side; FIG. 12 is a side schematic view of the structure of the cover body 52 shown in FIG. 11 . In addition, in the following description, description will be omitted for portions equivalent to those of the lid assembly 1A and the container body 2A described above, and the same symbols will be assigned in the drawings.

The lidded container 100C of this embodiment, as shown in FIGS. 7 and 8 , has a lid assembly 1C of this embodiment, and a container body 2C with the lid assembly 1C detachably installed.

The container with a lid 100C is a thermos bottle, and the beverage (content) contained in the container body 2C can be kept warm by the container body 2C having a vacuum insulation structure.

Specifically, except that the container body 2C is longer than the container body 2A, the other structures are the same as the container body 2A.

The cover assembly 1C of this embodiment has a cover body 51 and a cover body 52, wherein the cover body 51 is installed on the head and neck 2c of the container body 2C and is provided with a liquid flow port 50 that can communicate with the inside of the container body 2C; the cover body 52 is detachably mounted on the cover body 51 by screwing and can be used to open and close the liquid flow port 50 .

As shown in Figures 7 to 10, the cover body 51 has an outer cylinder portion 53, an inner cylinder portion 54 and a waterproof gasket 55, wherein the outer cylinder portion 53 is embedded in the head and neck portion 2c of the container body 2C; the inner cylinder portion 54 is It can be inserted into the inner side of the container body 2C from the upper opening 2d; the waterproof gasket 55 is located on the outer peripheral portion of the inner tube part 54 and can be used to seal between the inner side of the container body 2C and the inner tube part.

The cover body 51 is integrally formed of a cylindrical outer tube portion 53 and an inner tube portion 54 made of heat-resistant resin such as polypropylene (PP). The cover body 51 can also be formed by combining the outer tube part 53 and the inner tube part 54 into one body. Moreover, the outer cylinder part 53 can be comprised using thermoplastic resins, such as acrylonitrile, butadiene, styrene (ABS), etc. other than the above-mentioned polypropylene (PP).

The liquid flow port 50 is provided in a state penetrating inside the inner cylindrical portion 54 . The liquid flow port 50 includes a tapered hole portion 50a, a first straight hole portion 50b, a step portion 50c, and a second straight hole portion 50d, wherein the tapered hole portion 50a is configured to gradually shrink downward from the upper end of the inner cylinder portion 54. diameter; the first straight hole portion 50b extends downward with the same diameter from the lower end of the tapered hole portion 50a; the step portion 50c extends from the lower end of the first straight hole portion 50b and is smaller in diameter than the first straight hole portion 50b; and The second straight hole portion 50d extends downward from the step portion 50c with the same diameter.

The outer peripheral surface of the inner cylindrical part 54 is provided with the male thread part 56 for screwing the female thread part 6 of the container main body 2C side. In the cap assembly 1C, the inner cylindrical portion 54 (cap body 51 ) is detachably attached to the container body 2C by screwing the female thread portion 6 and the male thread portion 56 .

The waterproof gasket 55 is made of heat-resistant rubber such as silicon rubber or an annular elastic sealing member such as elastomer. The waterproof packing 55 is detachably attached to the inner cylindrical portion 54 in a state of being fitted in an annular groove portion 57 provided on the outer peripheral portion of the inner cylindrical portion 54 .

On the other hand, the waterproof packing 55 can be taken out from the inner side of the inner cylindrical portion 54 by elastically deforming (elastically stretching) itself. Thereby, the waterproof packing 55 and the inner tube part 54 can be cleaned separately, and the hygiene between the waterproof packing 55 and the inner tube part 54 can be maintained.

In addition, at least one (two in this embodiment) elastic flange portions 55a may be provided on the outer peripheral portion of the waterproof packing 55 . The elastic flange portion 55a has a shape protruding from the outer peripheral surface of the waterproof packing 55 in the radially expanding direction over the entire circle.

When the waterproof gasket 55 is inserted into the inside of the container body 2C, the elastic flange portion 55a abuts against the overhang portion 7 of the container body 2C while being elastically deformed, and forms a complete circle with the overhang portion. 7 Closed state. Thereby, the space between the inner side of the container body 2C and the inner cylindrical portion 54 can be sealed (water-tight) by the waterproof gasket 55 .

7, 8, 11 and 12, the cover body 52 has an outer cover 58, an inner plug 59 and a cover gasket 60, wherein the outer cover 58 is used to cover the outside of the cover body 51; the inner plug 59 is located The center of the inside of the outer cover 58 is used to block the liquid flow port 50 when it is inserted into the inside of the cover body 51; the cover gasket 60 is located on the outer periphery of the inner plug 59 so as to seal the inner side of the cover body 51 and the inner plug 59 between.

The outer cover 58 can be made of heat-resistant resin such as polypropylene or Tritan (registered trademark), and has a peripheral wall portion 58a formed into a substantially cylindrical shape in accordance with the outer diameter of the outer cylinder portion 53, and an upper portion for blocking the upper section of the peripheral wall portion 58a. The wall portion 58b.

The inner plug 59 can be made of heat-resistant resin such as polypropylene or Tritan (registered trademark), and has a substantially circular bottom wall 59a and a substantially cylindrical peripheral wall 59b extending from the periphery of the bottom wall 59a.

The inner plug 59 is located in the center of the inner side of the outer cover 58, and the peripheral wall portion 59b is integrally attached to the center of the lower surface of the upper wall portion 58b by welding or the like. The inside of the inner plug 59 is provided with a heat insulating material 61 such as foamed urethane resin as a heat insulating layer. In addition, air (voids) may be used instead of the heat insulating material 61 as the heat insulating layer.

A female screw portion 62 is provided on the inner peripheral surface of the inner cylinder portion 54 . The female screw portion 62 is provided at a position where the second straight hole portion 50 d is formed in the inner cylinder portion 54 . On the other hand, on the outer peripheral surface of the inner plug 59 , a male screw portion 63 that can be screwed to the female screw portion 62 is provided. In the cap assembly 1C, the inner plug 59 (cap body 52 ) is detachably attached to the inner cylinder portion 54 (cap body 51 ) by screwing the female thread portion 62 and the male thread portion 63 .

In addition, the female thread portion 62 and the male thread portion 63 are formed by double threads with complementary shapes. When using a double-strand thread, the cover body 52 can be disassembled by a small rotation operation (about 180 degrees in this embodiment) of the cover body 51 .

The cover gasket 60 is made of, for example, heat-resistant rubber such as silicon rubber or an annular elastic sealing member such as elastomer. The cap gasket 60 is detachably attached to the inner plug 59 in a state of being fitted in an annular groove portion 64 provided on the outer peripheral portion of the inner plug 59 .

On the other hand, the cap liner 60 can be taken out from the inner side of the inner plug 59 by elastically deforming (elastically stretching) itself. Thereby, the cap liner 60 and the inner plug 59 can be washed separately, and the hygiene between the cap liner 60 and the inner plug 59 can be maintained.

In addition, the outer peripheral portion of the cover gasket 60 may be provided with a plurality of elastic flange portions 60a aligned in the vertical direction. The elastic flange portion 60a has a shape protruding from the outer peripheral surface of the cover gasket 60 in the direction of expanding the diameter.

When the inner plug 59 is inserted into the inner cylinder portion 54 (the lid body 51), the lid gasket 60 abuts against the inner peripheral surface of the lid body 51 while being elastically deformed by the elastic flange portion 60a to form a complete circle and The inner peripheral surface of the cover main body 51 is in a state of close contact. In addition, the elastic flange portion 60a is preferably in contact with the first straight hole portion 50b near the boundary between the tapered hole portion 50a and the first straight hole portion 50b. Thereby, the space between the inner side of the lid body 51 and the inner plug 59 can be sealed (water-tight) by the lid gasket 60 .

In particular, the cap assembly 1C of this embodiment is provided with a pressure release portion 70 on the outer periphery of at least one of the inner cylinder portion 54 and the inner plug 59, which can release the container when the container body 2C rises to a predetermined pressure. Pressure in body 2C.

The pressure release portion 70 has a recess or a notch (in this embodiment, a recess) 70 a, which can communicate with the inner side of the container body 2C through the groove 57 . Specifically, the recessed portion 70 a is formed by denting at least a part of the side surface on the upper side of the groove portion 57 in the outer peripheral portion of the inner cylinder portion 54 .

Moreover, the number of arrangement|positioning recessed part 70a may arrange|position one, and may arrange|position a plurality. When arranging the plurality of recesses 70a, it is preferable to arrange them at equal intervals in the circumferential direction of the groove portion 75 (that is, in the side surface direction). In addition, if the width in the circumferential direction of the recessed portion 70a is too wide, leakage may occur, so it is preferable to provide an angle range of 60 degrees or less.

The pressure releasing part 70 has a recessed part 70b, and can communicate with the inside of the container main body 2C through the groove part 64. Specifically, the recessed portion 70 b is formed by denting at least a part of the side surface forming the upper side of the groove portion 64 in the outer peripheral portion of the inner plug 59 .

Moreover, the number of arrangement|positioning recessed part 70b may arrange|position one, and may arrange|position a plurality. When arranging the plurality of recesses 70b, it is preferable to arrange them in a row at equal intervals in the circumferential direction of the groove portion 64. As shown in FIG. In addition, if the width of the concave portion 70b in the circumferential direction is too wide, leakage may occur, so it is preferable to provide the concave portion 70b within an angle range of 60 degrees or less.

In the cover assembly 1C of this embodiment, when the waterproof gasket 55 is fitted into the groove 57 , the waterproof gasket 55 isolates the groove 75 from the concave portion 70 a. Moreover, the space between the inner side of the container main body 2C and the inner cylindrical portion 54 is sealed (watertight) by the waterproof packing 55 .

In this state, when the inside of the container body 2C rises to a predetermined pressure (for example, 200kPa or more and 800kPa or less), the waterproof gasket 55 will elastically deform, so that the groove 57 and the recess 70a will be in a communication state. Thereby, the pressure inside the container body 2C is released from the recess 70a to the outside.

In addition, when a plurality of recesses 70a are provided, the setting value of the elastic deformation pressure of the waterproof packing 55 can be adjusted by adjusting individual changes in the width along the circumferential direction.

On the other hand, after the pressure in the container body 2C is released, the waterproof gasket 55 elastically recovers to isolate the groove 57 from the recess 70a. Thereby, between the inside of 2 C of container main bodies, and the inner cylinder part 54, it becomes airtight (watertight) state again.

Therefore, the fastening force between the female screw portion 6 on the side of the container body 2C and the male screw portion 56 on the side of the inner cylinder portion 54 in the container with a cap 100C having the cap assembly 1C of the present embodiment does not follow the internal pressure of the container body 2C. The pressure rises and increases, so that the cap body 51 will not be difficult to rotate in the direction of opening the container, and the cap body 51 (cap assembly 1C) can be easily removed from the container body 2C.

Also, the container with lid 100C of this embodiment can prevent the lid body 51 (lid assembly 1C) from facing upward due to the pressure rising in the container body 2C when the lid body 51 (lid assembly 1C) is removed from the container body 2C. side pop up.

In the lid assembly 1C of this embodiment, when the lid gasket 60 is fitted into the groove portion 64 , the lid gasket 60 isolates the groove portion 64 from the concave portion 70 b. In addition, a space between the inner side of the inner cylinder portion 54 and the inner plug 59 is sealed (watertight) by the cap gasket 60 .

In this state, when the inside of the container body 2C rises to a predetermined pressure (for example, more than 200kPa and less than 800kPa), the lid gasket 60 will elastically deform, so that the groove 64 and the recess 70b will be in a communication state. Thereby, the pressure in the container body 2C is released from the recess 70b to the outside.

In addition, when a plurality of recesses 70b are provided, the setting value of the pressure for the elastic deformation of the cover gasket 60 can be adjusted by adjusting individual changes in width along the circumferential direction.

On the other hand, after the pressure in the container body 2C is released, the lid gasket 60 elastically returns to isolate the groove portion 64 from the concave portion 70b. As a result, the space between the inner side of the inner cylinder portion 54 and the inner plug 59 is again airtight (watertight).

Therefore, the fastening force between the female thread portion 62 on the inner cylinder portion 54 side and the male thread portion 63 on the inner plug 59 side in the capped container 100C having the cap assembly 1C of the present embodiment does not change with the internal pressure of the container body 2C. The pressure rises and increases, so that the outer cover 58 will not be difficult to rotate in the direction of opening the container, and the cover body 52 can be easily removed from the cover body 51 .

In addition, the lidded container 100C of this embodiment can prevent the lid 52 from being ejected upward due to the pressure rising in the container body 2C when the lid 52 is detached from the lid body 51 .

As mentioned above, the lidded container 100C of this embodiment can prevent the pressure in the container body 2C from rising, and can easily and safely open the lid body 51 and the lid body 52 . Moreover, not only can the good sealing performance of the waterproof gasket 55 and the lid gasket 60 be maintained, but also the operability of the lid body 51 and the lid body 52 can be improved when opening the container. Therefore, the container with a lid 100C having such a lid assembly 1C can improve user experience.

While the cap assembly 1C of this embodiment is configured such that the inner cylinder portion 54 is detachably mounted on the container body 2C by screwing, it may also be configured such that the outer cylinder portion 53 is detachably mounted on the container body 2C by screwing.

However, the present invention is not limited to the examples of the above-described embodiments, and various changes can be added without departing from the spirit of the present invention. For example, in the above-mentioned embodiment, the containers with lids 100A, 100B, and 100C that have a thermal insulation function due to the container bodies 2A, 2B, and 2C having a vacuum insulation structure are illustrated, but for the belts that include container bodies that do not have a vacuum insulation structure, The present invention can also be applied to lidded containers.

According to, the above description is only a preferred embodiment of the present invention, but the scope of rights claimed by the present invention is not limited thereto. According to those who are familiar with the art, according to the technical content disclosed in the present invention, they can The easily conceivable equivalent changes shall all fall within the scope of protection of the present invention.

[knowledge] none [this invention] 100A, 100B, 100C: container with lid 1A, 1B, 1C: cover assembly 2A, 2B, 2C: container body 2a: Bottom 2b: Main body 2c: head and neck 2d: Upper opening 3: outer container 4: inner container 5: Vacuum insulation layer 6: female thread part 7: Overhang 8: Outer cover 8a: Peripheral wall 8b: Upper wall 9: Inner cover 9a: Bottom wall 9b: Peripheral wall 9c: Upper flange 10: waterproof liner 10a: elastic flange part 11: inner plug 11a: Fitting recess 11b: Fitting convex part 12: ventilation hole 13: plug body 13a: protrusion 13b: flange part 13c: Cylindrical part 13d: Groove 14: male thread part 15: Groove 16: Insulation material 17:Elastic buckle part 18: Embedding groove 20: Pressure release department 20a: Gap 30: cover body 31: outer cover 31a: Peripheral wall 31b: upper wall 32: inner plug 32a: Bottom wall 32b: Peripheral wall 33: waterproof liner 33a: elastic flange part 34: male thread part 35: Groove 40: Pressure release department 40a: concave part 50: liquid flow port 50a: tapered hole 50b: the first straight hole 50c: step difference department 50d: The second straight hole 51: cover body 52: cover body 53: Outer cylinder 54: Inner cylinder 55: waterproof liner 55a: elastic flange part 56:Male thread part 57: Ditch 58: outer cover 58a: Peripheral wall 58b: upper wall 59: inner plug 59a: Bottom wall 59b: Peripheral wall 60: cover liner 60a: elastic flange part 61: Insulation material 62: female thread part 63: male thread part 64: Ditch 70: Pressure release department 70a, 70b: recessed part

[Fig. 1] is a schematic cross-sectional view of the structure of a container with a lid having a lid assembly according to a first embodiment of the present invention; [Fig. 2] is an exploded schematic view of the cover assembly and container body shown in Fig. 1 from the lower side; [Fig. 3] is a schematic side view of the structure of the inner cover of the cover assembly shown in Fig. 1; [Fig. 4] is a schematic cross-sectional view of the structure of a container with a lid having a lid assembly according to a second embodiment of the present invention; [Fig. 5] is an exploded schematic view of the lid assembly and container body shown in Fig. 4 from the lower side; [Fig. 6] is a schematic side view of the structure of the cover assembly shown in Fig. 4; [ FIG. 7 ] is a schematic cross-sectional view of the structure of a container with a lid having a lid assembly according to a third embodiment of the present invention; [Fig. 8] is an exploded schematic view of the lid assembly and container body shown in Fig. 7 from the lower side; [Fig. 9] is an exploded view of the cap body and the waterproof gasket of the cap assembly shown in Fig. 7 viewed from the lower side; [Fig. 10] is a schematic side view of the structure of the cover body shown in Fig. 9; [Fig. 11] is a schematic exploded view of the cap body and cap liner of the cap assembly shown in Fig. 7 viewed from the lower side; and [ Fig. 12 ] is a schematic side view of the structure of the lid shown in Fig. 11 .

100A: container with lid

1A: Cover assembly

2A: container body

2a: Bottom

2b: Main body

2c: head and neck

2d: Upper opening

3: outer container

4: inner container

5: Vacuum insulation layer

6: female thread part

7: Overhang

8: Outer cover

8a: Peripheral wall

8b: Upper wall

9: Inner cover

9a: Bottom wall

9b: Peripheral wall

9c: Upper flange

10: waterproof liner

10a: elastic flange part

11: inner plug

11a: Fitting recess

11b: Fitting convex part

12: ventilation hole

13: plug body

13a: protrusion

13b: flange part

13c: Cylindrical part

13d: Groove

14: male thread part

15: Groove

16: Insulation material

17:Elastic buckle part

18: Embedding groove

20: Pressure release department

20a: Gap

Claims (8)

A cover assembly is detachably installed on a container body with an opening at the upper end, comprising: an outer cover for covering an upper opening of the container body; An inner cover for inserting into the inner side of the container body from the upper opening of the container body, a pressure release part is provided on the outer peripheral part of the inner cover, and when the inside of the container body rises to a predetermined pressure, the pressure The release part releases the pressure in the container body; and A waterproof liner, located on the outer periphery of the inner cover, is used to seal between the inner side of the container body and the inner cover. The waterproof liner is composed of a ring-shaped elastic sealing member, and the aforementioned ring-shaped elastic sealing member is Abutting against an overhanging portion protruding from the entire inner side of the container body, the waterproof gasket is mounted on the inner cover while fitting in a ring-shaped groove provided on the outer peripheral portion of the inner cover. A cover assembly is detachably installed on a container body with an opening at the upper end, comprising: an outer cover, used to cover the outer side of the container body; An inner plug is located in the center of the inner side of the outer cover, and is used to insert into the inner side of the container body from an upper opening of the container body. The outer peripheral portion of the inner plug is provided with a pressure release part, which rises in the container body to Under the condition of predetermined pressure, the pressure release part will release the pressure in the container body; and A waterproof liner, located on the outer periphery of the inner plug, used to seal between the inner side of the container body and the inner plug, the waterproof liner is composed of a ring-shaped elastic sealing member, and the aforementioned ring-shaped elastic sealing member is Abutting against an overhanging portion protruding from the entire inner side of the container body, the waterproof gasket is mounted on the inner plug while being fitted in a ring-shaped groove provided on the outer peripheral portion of the inner plug. A cover assembly is detachably installed on a container body with an opening at the upper end, comprising: A cover body, used to be installed on the head and neck of the container body, is provided with a liquid flow hole communicating with the inner side of the container body, the cover body includes: an inner cylinder part for inserting into the inner side of the container body from the upper opening of the container body; and A waterproof gasket is located at the outer peripheral portion of the inner cylinder to seal between the inside of the container body and the inner cylinder, the waterproof gasket is composed of an annular elastic sealing member, and the aforementioned annular elastic sealing member abutting against an overhang protruding from the entire inner circumference of the container body, the waterproof gasket is mounted on the inner cylinder while being fitted in a ring-shaped groove provided on the outer peripheral portion of the inner cylinder; and A cover is detachably mounted on the cover body in a screwed manner so as to be able to open and close the liquid flow hole, and the cover includes: an outer cover, used to cover the outer side of the cover body; An inner plug is located at the center of the inner side of the outer cover to block the liquid flow hole by being inserted into the inner side of the cover body, and at least one of the inner cylinder part and the inner plug is provided with a pressure release part on the outer peripheral part, The pressure release part releases the pressure in the container body when the internal pressure of the container body rises to a predetermined pressure; and A cap liner, which is composed of an annular elastic sealing member abutting against the inner peripheral surface of the container body. When the cap liner is fitted in a ring-shaped groove provided on the outer periphery of the inner plug Installed on the inner plug. The cap assembly according to any one of claims 1 to 3, wherein the pressure release part has a recess or a notch communicating with the inner side of the container body through the groove, and the elastic sealing member is fitted into the In the state of the groove portion, the elastic sealing member will block the communication state between the groove portion and the concave portion or the notch portion, and when the pressure in the container body rises to a predetermined pressure, the elastic sealing member will elastically deform, so that The groove is connected to the recess or the notch so that the pressure in the container body can be released to the outside through the recess or the notch. The cover assembly as claimed in claim 4, wherein the concave portion or the notch portion is formed by at least a partial depression or cutout of a side surface forming the upper side of the groove portion. The cover assembly according to claim 5, wherein the recesses or the notches are arranged at equal intervals along the side of the groove. A container with a lid, comprising the lid assembly described in any one of Claims 1 to 6, and a container body on which the lid assembly is installed. The container with a lid as claimed in claim 7, wherein the container body has a vacuum insulation structure.

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