JP7417458B2 - Cap unit and container with cap - Google Patents

Description

The present invention relates to a cap unit and a container with a cap.

Conventionally, there have been containers with caps that are equipped with a cap unit (stopper) that is detachably attached to the mouth and neck of a container body with an open top, thereby closing the top opening of the container body (for example, the following Patent Document (See 1).

Such a cap unit has an outer lid that covers the upper opening of the container body, and an inner plug that is fitted into the inside of the container body from the upper opening, and the inner plug or the outer lid is screwed into the cap body. The structure is such that it can be attached depending on the situation. Further, a water stop packing (sealing member) that seals between the container body and the inner stopper is detachably attached to the outer circumference of the inner stopper.

Japanese Patent Application Publication No. 2010-280402

By the way, in the above-mentioned container with a cap, when a hot beverage is poured into the container body, for example, water vapor saturated within the container body condenses on the lower surface of the inner stopper and adheres to the lower surface of the inner stopper in the form of water droplets. The water droplets attached to the bottom surface of the inner stopper gradually grow and drip into the container body due to their own weight.

On the other hand, when the cap unit is removed from the container body, water droplets adhering to the lower surface of the inner stopper may run down from the tilted cap unit, resulting in wetting the surrounding area. If water droplets attached to the bottom surface of the inner stopper can quickly fall into the inside of the container body, when the cap unit is removed from the container body, the water droplets attached to the bottom surface of the inner stopper will not wet the surrounding area. It is possible to suppress it. However, water droplets adhering to the lower surface of the inner stopper are difficult to fall due to the surface tension acting between them and the lower surface of the inner stopper.

The present invention has been proposed in view of the above-mentioned conventional circumstances, and provides a cap unit that prevents water droplets attached to the bottom surface of the inner stopper from wetting the surrounding area when removed from the container body, and An object of the present invention is to provide a container with a cap that can be further improved in usability by including such a cap unit.

In order to achieve the above object, the present invention provides the following means.
[1] A cap unit that can be detachably attached to a container body with an open top,
an outer lid that covers the upper opening of the container body;
an inner stopper located at the center of the inner side of the outer lid and fitted into the inner side of the container body from the upper opening;
a sealing member located on the outer periphery of the lower end of the inner stopper and sealing between the container body and the inner stopper;
The cap unit is characterized in that the sealing member has a lower surface side protrusion that protrudes over the entire circumference in a direction away from a position where it contacts the lower surface of the inner stopper over the entire circumference .
[2] The lower surface side protrusion has an inclined surface on its inner peripheral side that is at an acute angle with respect to the lower surface of the inner plug,
The cap unit according to item [1] above, wherein a gap is provided between the inclined surface and the lower surface of the inner stopper.
[3] A cap unit that is detachably attached to a container body with an open top,
an outer lid that covers the upper opening of the container body;
an inner stopper located at the center of the inner side of the outer lid and fitted into the inner side of the container body from the upper opening;
a sealing member that is detachably attached to the outer periphery of the lower end of the inner stopper and seals between the container body and the inner stopper;
The sealing member has a lower side protrusion that protrudes all the way in the diameter reduction direction from a position that contacts the outer circumference of the lower side of the inner stopper over the entire circumference ,
A cap unit characterized in that a gap is provided between the upper surface of the lower surface side protrusion and the lower surface of the inner stopper .
[ 4 ] Any one of [1] to [ 3 ] above, wherein the sealing member is made of a ring-shaped elastic member and is detachably attached to the outer periphery of the lower end of the inner stopper. The cap unit described in section .
[ 5 ] The cap unit according to any one of [1] to [ 4 ], wherein the inner stopper has a lower surface concave portion that is recessed upward on the lower surface thereof.
[ 6 ] The cap unit according to any one of [1] to [ 5 ] above, wherein the inner stopper has an uneven finish on a part or the entire lower surface thereof .
[ 7 ] The cap unit according to any one of [1] to [ 6 ] above;
A container with a cap, comprising: a container body to which the cap unit is attached .

As described above, according to the present invention, there is provided a cap unit that suppresses wetting of the surrounding area due to water droplets adhering to the lower surface of the inner stopper when removed from the container main body, and the provision of such a cap unit. Accordingly, it is possible to provide a container with a cap that enables further improvement in usability.

FIG. 1 is a cross-sectional view showing the configuration of a capped container including a cap unit according to a first embodiment of the present invention. It is a sectional view showing the composition of a capped container provided with a cap unit concerning a 2nd embodiment of the present invention. It is a sectional view showing the composition of a container with a cap provided with a cap unit concerning a 3rd embodiment of the present invention. It is a sectional view showing the composition of the capped container provided with the cap unit concerning the 4th embodiment of the present invention. It is a sectional view showing the composition of a container with a cap provided with a cap unit concerning a 5th embodiment of the present invention. It is a sectional view showing the composition of a container with a cap provided with a cap unit concerning a 6th embodiment of the present invention. It is a sectional view showing the composition of a container with a cap provided with a cap unit concerning a 7th embodiment of the present invention. FIG. 7 is a sectional view of a main part showing another example of the structure of the lower surface side protrusion in the eighth embodiment of the present invention. FIG. 7 is a cross-sectional perspective view of a main part illustrating a configuration in which a shape-changing portion is provided in a part of a lower surface side protrusion in a ninth embodiment of the present invention. It is a sectional view showing the composition of the capped container provided with the cap unit concerning the 10th embodiment of the present invention.

Embodiments of the present invention will be described in detail below with reference to the drawings.
(First embodiment)
First, as a first embodiment of the present invention, a capped container 100A including a cap unit 1A shown in FIG. 1, for example, will be described.
In addition, it is a sectional view showing the structure of 100 A of containers with a cap provided with 1 A of cap units.

As shown in FIG. 1, the capped container 100A of this embodiment includes a container body 2 with an open top and a cap unit 1A detachably attached to the container body 2. This is a beverage container that can keep beverages (contents) warm. Further, in the capped container 100A, the upper opening 2a of the container body 2 can be opened and closed by the cap unit 1A which is screwed onto the container body 2.

Specifically, the container body 2 has an outer container 3 and an inner container 4 made of metal, such as stainless steel. The container body 2 accommodates an inner container 4 with one end open inside an outer container 3 with one end open, and the open ends of the container body 2 are joined to each other, and there is a gap between the outer container 3 and the inner container 4. It has a vacuum insulation structure in which a vacuum insulation layer 5 is provided.

The vacuum heat insulating layer 5 can be formed, for example, by sealing a degassing hole provided at the center of the bottom surface of the outer container 3 with a brazing material in a chamber that is reduced in pressure to a high vacuum (evacuated).

By having such a vacuum insulation structure, the container body 2 can have the above-mentioned function of keeping warm or keeping cool. In addition, since the container body 2 has such a vacuum insulation structure, tension is constantly applied to the outer container 3 and the inner container 4 due to the difference between the internal pressure (vacuum pressure) and the external pressure (atmospheric pressure). The mechanical strength of these outer container 3 and inner container 4 will increase. Thereby, even when the outer container 3 and the inner container 4 are made thinner, 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 includes a substantially circular bottom portion 2b, a body portion 2c that stands up in a substantially cylindrical shape from the outer periphery of the bottom portion 2b, and a mouth and neck portion 2d that stands up in a substantially cylindrical shape from the upper side of the body portion 2c. have. Further, the upper end portion of the mouth and neck portion 2d is opened in a circular shape as the upper opening portion 2a of the container body 2.

A female threaded portion 6 is provided on the inner peripheral surface of the mouth and neck portion 2d. Furthermore, a ring-shaped projecting portion 7 is provided below the female threaded portion 6 so as to protrude from the inner peripheral surface of the inner container 4 over the entire circumference.

Although the capped container 100A of this embodiment has an approximately cylindrical external shape as a whole, the external shape of the capped container 100A is not particularly limited, and may vary depending on size, design, etc. In addition, it is possible to make changes as appropriate. Furthermore, the outer peripheral surface of the container body 2 (outer container 3) may be painted, printed, or the like.

The cap unit 1A of this embodiment constitutes a stopper that closes the upper opening 2a of the container body 2. Specifically, this cap unit 1A includes a cap body 8 that is screwed onto the container body 2 while covering the upper opening 2a of the container body 2.

The cap main body 8 has an outer lid 9 that covers the upper opening 2a of the container main body 2, and an inner stopper 10 that is fitted into the inner side of the container main body 2 from the upper opening 2a.

The outer lid 9 is made of a heat-resistant resin such as polypropylene or Tritan (registered trademark), and includes a peripheral wall portion 9a formed in a substantially cylindrical shape so that its appearance is continuous with the body portion 2c of the container body 2, and a peripheral wall portion 9a. It has an upper wall part 9b that closes off the upper part of.

The inner plug 10 is made of a heat-resistant resin such as polypropylene or Tritan (registered trademark), and has a substantially circular bottom wall portion 10a and a peripheral wall portion 10b rising from the periphery of the bottom wall portion 10a in a substantially cylindrical shape. ing. The inner plug 10 is located at the center inside the outer lid 9, and the peripheral wall 10b is integrally attached to the center of the lower surface of the upper wall 9b by welding or the like. Note that the inside of the inner stopper 10 is not limited to air serving as a heat insulating layer, but may also have a structure in which a heat insulating material (not shown) is arranged.

Further, a male screw portion 11 is provided on the outer peripheral surface of the peripheral wall portion 10b (inner stopper 10). In the capped container 100A, the inner stopper 10 (cap body 8) is detachably attached to the container body 2 by screwing the male threaded portion 11 and the female threaded portion 6 together. Further, the female threaded portion 6 and the male threaded portion 11 are made of double threads that are complementary to each other. When a double thread screw is used, it is possible to attach and detach the cap body 8 (cap unit 1A) to and from the container body 2 with a small rotational operation (approximately 180° in this embodiment).

A water stop packing 12 is detachably attached to the outer peripheral portion of the lower end of the inner stopper 10. The water-stop packing 12 is a ring-shaped seal member that seals between the inside of the container body 2 and the inner stopper 10, and is made of an elastic member such as a heat-resistant rubber such as silicone rubber or an elastomer.

On the lower end side of the inner plug 10, there is a reduced diameter part 10c whose diameter is smaller than the outer diameter of the peripheral wall part 10b, and a ring-shaped flange that protrudes in the diametrically expanding direction from the lower end of the reduced diameter part 10c over the entire circumference. A ring-shaped groove 10e is provided between the portion 10d and the reduced diameter portion 10c and the flange portion 10d.

On the other hand, the inner peripheral surface of the water stop packing 12 is provided with a ring-shaped fitting protrusion 12a that is fitted into the groove 10e, and a ring-shaped fitting recess 12b into which the flange 10d is fitted. There is. The water stop packing 12 can be detachably attached to the outer periphery of the lower end of the inner stopper 10 by fitting the fitting protrusion 12a into the groove 10e and fitting the flange 10d into the fitting recess 12b. attached.

Further, two elastic flange portions 12c are provided on the outer circumferential surface of the water stop packing 12 so as to protrude in the diametrical direction. When the cap main body 8 is attached to the container main body 2, the water stop packing 12 comes into close contact with the projecting portion 7 of the container main body 2 over the entire circumference while the elastic flange portion 12c is elastically deformed. This makes it possible to seal (water stop) between the overhanging portion 7 (container body 2) and the inner stopper 10 (cap body 8).

On the other hand, the water stop packing 12 can be removed from the inner stopper 10 (cap body 8) by elastically deforming itself (pulling and stretching). Thereby, the cap main body 8 and the water stop packing 12 can be washed separately, and the space between the water stop packing 12 and the cap main body 8 can be kept sanitary.

Note that the water stop packing 12 is not necessarily limited to the shape described above, and for example, the number of elastic flange portions 12c is not limited to the two described above, but may be one or more. It is possible.

Further, the water stop packing 12 is not necessarily limited to the configuration in which the elastic flange portion 12c described above is provided, and its shape etc. can be changed as appropriate. For example, an elastic flange portion having a shape that curves and protrudes downward from the upper end of the outer peripheral surface of the water stop packing 12 may be provided.

The water stop packing 12 has a lower surface side protrusion 13 that protrudes in a direction away from a position where it contacts the lower surface of the bottom wall portion 10a (inner stopper 10) over the entire circumference (downward). The lower surface side protrusion 13 has an inclined surface 13a that forms an acute angle with respect to the lower surface of the inner stopper 10 on its inner peripheral side. Thereby, a gap S is provided between the inclined surface 13a and the lower surface of the inner stopper 10 over the entire circumference.

In the capped container 100A of this embodiment having the above configuration, the inner stopper 10 is inserted into the container body 2 from the upper opening 2a, and then the outer lid 9 (the cap body) is inserted into the container body 2. 8) clockwise (hereinafter referred to as "closing direction"), it is possible to attach the cap unit 1A to the container body 2 by screwing the female threaded part 6 and the male threaded part 11 together.

On the other hand, from the state where the cap body 8 (cap unit 1A) is attached to the container body 2, the outer lid 9 (cap body 8) is rotated counterclockwise (hereinafter referred to as the "opening direction") with respect to the container body 2. By doing so, it is possible to release the threaded engagement between the female threaded portion 6 and the male threaded portion 11 and remove the cap unit 1A from the container body 2.

By the way, in the capped container 100A of this embodiment, when the cap unit 1A is attached to the container body 2, the water vapor saturated in the container body 2 condenses on the lower surface of the inner stopper 10, and the lower surface of the inner stopper 10 The water droplets (not shown) adhere to the surface. Furthermore, water droplets adhering to the lower surface of the inner plug 10 are difficult to fall due to the surface tension acting between the lower surface of the inner plug 10 and the lower surface of the inner plug 10.

On the other hand, when the cap unit 1A is removed from the container body 2, water droplets adhering to the lower surface of the inner stopper 10 due to the inclination of the cap unit 1A move along the lower surface of the inner stopper 10 and cause the water stop packing 12 to protrude from the lower surface side. It flows into the gap S formed between the part 13 and the part 13. In this case, by collecting water droplets in the gap S, it is possible to suppress the water droplets attached to the lower surface of the inner stopper 10 from falling.

On the other hand, when the cap unit 1A is reattached to the container body 2, it is possible to cause water droplets that have flowed into the gap S to fall into the inside of the container body 2 along the inclined surface 13a of the lower protrusion 13. be.

As a result, in the capped container 100A of the present embodiment, when the cap unit 1A is removed from the container body 2, it is possible to prevent water droplets attached to the lower surface of the inner stopper 10 from wetting the surrounding area. .

In addition, in the capped container 100A of the present embodiment, the gap S formed between the cap and the bottom surface of the inner stopper 10 makes it easy to pinch the bottom protrusion 13 of the water stop packing 12. In this case, the water stop packing 12 can be easily removed from the inner stopper 10 (cap body 8) by elastically deforming (pulling and stretching) the water stop packing 12 while pinching the lower protrusion 13. .

In addition, in order to make it easier to pinch the lower surface side protrusion 13, it is preferable to provide a gap S that is at least the thickness of the lower surface side protrusion 13 (water stop packing 12). Further, in order to facilitate the accumulation of water droplets in the gap S, it is preferable that the angle of the inclined surface 13a of the lower surface side protrusion 13 is in the range of 10 to 80 degrees.

As described above, in the capped container 100A of this embodiment, by including the cap unit 1A described above, it is possible to further improve usability.

(Second embodiment)
Next, as a second embodiment of the present invention, a capped container 100B including a cap unit 1B shown in FIG. 2, for example, will be described.
Note that FIG. 2 is a cross-sectional view showing the configuration of a capped container 100B including a cap unit 1B. Furthermore, in the following description, the description of parts equivalent to the capped container 100A provided with the cap unit 1A will be omitted, and the same reference numerals will be given in the drawings.

As shown in FIG. 2, the capped container 100B of this embodiment includes a cap unit 1B that is detachably attached to the container body 2 instead of the cap unit 1A.

Specifically, this cap unit 1B has basically the same configuration as the cap unit 1A described above, except that the shape of the lower surface of the inner stopper 10 is different. That is, the lower surface convex portion 14 is provided on the lower surface of the inner stopper 10. The lower surface convex portion 14 has a pointed shape in which the entire surface of the bottom wall portion 10a constituting the lower surface of the inner stopper 10 projects downward in a substantially conical shape. Further, the lower surface convex portion 14 has an inclined surface 14a that is linearly inclined toward the center of the lower surface of the inner stopper 10.

In the capped container 100B of the present embodiment having the above-described configuration, when the cap unit 1B is attached to the container body 2, water droplets attached to the lower surface of the inner stopper 10 are removed onto the inclined surface 14a of the lower surface protrusion 14. It is possible to make it easier to fall along the inside of the container body 2.

On the other hand, when the cap unit 1B is removed from the container body 2, water droplets attached to the lower surface of the inner stopper 10 due to the inclination of the cap unit 1B are moved along the inclined surface 14a of the lower surface protrusion 14 to the lower surface of the water stop packing 12. It flows into the gap S formed between the side protrusion 13 and the side protrusion 13 .

At this time, the number of water droplets adhering to the lower surface of the inner stopper 10 is smaller than in the case of the cap unit 1A, and the amount of water droplets that accumulate in the gap S is suppressed. Therefore, it is possible to further suppress the falling of water droplets adhering to the lower surface of the inner stopper 10.

On the other hand, when the cap unit 1B is reattached to the container body 2, the water droplets that have flowed into the gap S are moved along the inclined surface 13a of the lower surface side protrusion 13 and the inclined surface 14a of the lower surface protrusion 14, and It is possible to drop it inward.

As described above, in the capped container 100B of the present embodiment, when the cap unit 1B is removed from the container body 2, it is possible to prevent water droplets attached to the lower surface of the inner stopper 10 from wetting the surrounding area. It is. Further, in the capped container 100B of this embodiment, by including the above-described cap unit 1B, it is possible to further improve usability.

(Third embodiment)
Next, as a third embodiment of the present invention, a capped container 100C including a cap unit 1C shown in FIG. 3, for example, will be described.
Note that FIG. 3 is a cross-sectional view showing the configuration of a capped container 100C including a cap unit 1C. Furthermore, in the following description, the description of parts equivalent to the capped container 100A provided with the cap unit 1A will be omitted, and the same reference numerals will be given in the drawings.

As shown in FIG. 3, the capped container 100C of this embodiment includes a cap unit 1C that is detachably attached to the container body 2 instead of the cap unit 1A.

Specifically, this cap unit 1C has basically the same configuration as the cap unit 1A described above, except that the shape of the lower surface of the inner stopper 10 is different. That is, a lower surface protrusion 15 is provided on the lower surface of the inner stopper 10. The lower surface convex portion 15 has a pointed shape in which the entire surface of the bottom wall portion 10a constituting the lower surface of the inner stopper 10 is curved downward in a concave shape and protrudes in a substantially conical shape. Further, the lower surface convex portion 15 has an inclined surface 15a that is concavely curved and inclined toward the center of the lower surface of the inner stopper 10.

In the capped container 100C of the present embodiment having the above-described configuration, when the cap unit 1C is attached to the container body 2, water droplets adhering to the lower surface of the inner stopper 10 are removed onto the inclined surface 15a of the lower convex portion 15. It is possible to make it easier to fall along the inside of the container body 2.

On the other hand, when the cap unit 1C is removed from the container body 2, water droplets adhering to the lower surface of the inner stopper 10 due to the inclination of the cap unit 1C move along the inclined surface 15a of the lower convex portion 15 to the lower surface of the water stop packing 12. It flows into the gap S formed between the side protrusion 13 and the side protrusion 13 .

At this time, the amount of water droplets adhering to the lower surface of the inner stopper 10 is smaller than in the case of the cap unit 1A, and the amount of water droplets that accumulate in the gap S is suppressed. Therefore, it is possible to further suppress the falling of water droplets adhering to the lower surface of the inner stopper 10.

On the other hand, when the cap unit 1C is reattached to the container body 2, the water droplets that have flowed into the gap S are moved along the slope 13a of the lower protrusion 13 and the slope 15a of the lower protrusion 15 to the container body 2. It is possible to drop it inward.

As described above, in the capped container 100C of the present embodiment, when the cap unit 1C is removed from the container body 2, it is possible to prevent water droplets attached to the lower surface of the inner stopper 10 from wetting the surrounding area. It is. Further, in the capped container 100C of this embodiment, by including the cap unit 1C described above, it is possible to further improve usability.

(Fourth embodiment)
Next, as a fourth embodiment of the present invention, a capped container 100D including a cap unit 1D shown in FIG. 4, for example, will be described.
Note that FIG. 4 is a cross-sectional view showing the configuration of a capped container 100D including a cap unit 1D. Furthermore, in the following description, the description of parts equivalent to the capped container 100A provided with the cap unit 1A will be omitted, and the same reference numerals will be given in the drawings.

As shown in FIG. 4, the capped container 100D of this embodiment includes a cap unit 1D that is detachably attached to the container body 2 instead of the cap unit 1A.

Specifically, this cap unit 1D has basically the same configuration as the cap unit 1A described above, except that the shape of the lower surface of the inner stopper 10 is different. That is, a lower surface protrusion 16 is provided on the lower surface of the inner stopper 10. The lower surface convex portion 16 has a pointed shape in which a portion of the bottom wall portion 10a forming the lower surface of the inner stopper 10 projects downward in a substantially triangular shape. Further, the lower surface convex portion 16 is located at a position offset from the center of the lower surface of the inner stopper 10, and has an inclined surface 16a that is linearly inclined toward its lower end.

In the capped container 100D of the present embodiment having the above-described configuration, when the cap unit 1D is attached to the container body 2, water droplets attached to the lower surface of the inner stopper 10 are removed onto the inclined surface 16a of the lower surface convex portion 16. It is possible to make it easier to fall along the inside of the container body 2.

On the other hand, when the cap unit 1D is removed from the container body 2, water droplets attached to the lower surface of the inner stopper 10 due to the inclination of the cap unit 1D are moved along the lower surface of the inner stopper 10 to the lower surface side protrusion of the water stop packing 12. 13 into the gap S formed between the two.

At this time, the number of water droplets adhering to the lower surface of the inner stopper 10 is smaller than in the case of the cap unit 1A, and the amount of water droplets that accumulate in the gap S is suppressed. Therefore, it is possible to further suppress the falling of water droplets adhering to the lower surface of the inner stopper 10.

On the other hand, when the cap unit 1D is reattached to the container body 2, the water droplets that have flowed into the gap S can be caused to fall into the inside of the container body 2 along the inclined surface 13a of the lower protrusion 13. be.

As described above, in the capped container 100D of the present embodiment, when the cap unit 1D is removed from the container body 2, it is possible to prevent water droplets attached to the lower surface of the inner stopper 10 from wetting the surrounding area. It is. Further, the capped container 100D of this embodiment can further improve usability by including the cap unit 1D described above.

In addition, in this embodiment, the structure is such that one lower surface protrusion 16 is provided on the lower surface of the inner stopper 10, but the structure is not necessarily limited to such a structure, and a plurality of lower surface protrusions 16 may be provided. A configuration may also be provided. Further, the shape of the lower surface convex portion 16 can also be changed as appropriate.

(Fifth embodiment)
Next, as a fifth embodiment of the present invention, a capped container 100E including a cap unit 1E shown in FIG. 5, for example, will be described.
Note that FIG. 5 is a cross-sectional view showing the configuration of a capped container 100E including a cap unit 1E. Furthermore, in the following description, the description of parts equivalent to the capped container 100A provided with the cap unit 1A will be omitted, and the same reference numerals will be given in the drawings.

As shown in FIG. 5, the capped container 100E of this embodiment includes a cap unit 1E that is detachably attached to the container body 2 instead of the cap unit 1A.

Specifically, this cap unit 1E has basically the same configuration as the cap unit 1A described above, except that the shape of the lower surface of the inner stopper 10 is different. That is, a lower surface recess 17 is provided on the lower surface of the inner stopper 10. The lower surface recess 17 has a shape in which the bottom wall portion 10a forming the lower surface of the inner stopper 10 is recessed upward into a spherical shape. Moreover, the lower surface recessed part 17 has an inclined surface 17a that is inclined while curving concavely from the center of the lower surface of the inner stopper 10 toward the outer periphery.

In the capped container 100E of the present embodiment having the above configuration, water droplets attached to the lower surface of the inner stopper 10 move along the inclined surface 17a of the lower surface recess 17 when the cap unit 1E is attached to the container body 2. Then, it flows down from the center of the lower surface of the inner stopper 10 to the outer circumferential side. Thereafter, water droplets can fall into the inside of the container body 2 along the inclined surface 13a of the lower surface side protrusion 13 of the water stop packing 12.

On the other hand, when the cap unit 1E is removed from the container body 2, water droplets adhering to the lower surface of the inner stopper 10 due to the inclination of the cap unit 1E move along the inclined surface 17a of the lower surface recess 17 toward the lower surface of the water stop packing 12. It flows into the gap S formed between the protrusion 13 and the lower surface recess 17 .

At this time, the amount of water droplets adhering to the lower surface of the inner stopper 10 is smaller than in the case of the cap unit 1A, and the amount of water droplets that accumulate in the gap S is suppressed. Further, a larger gap S is ensured than in the case of the cap unit 1A. Therefore, it is possible to further suppress the falling of water droplets adhering to the lower surface of the inner stopper 10.

On the other hand, when the cap unit 1E is reattached to the container body 2, the water droplets that have flowed into the gap S and the lower surface recess 17 are allowed to fall into the inside of the container body 2 along the inclined surface 13a of the lower surface side protrusion 13. Is possible.

As described above, in the capped container 100E of the present embodiment, when the cap unit 1E is removed from the container body 2, it is possible to prevent the surrounding area from getting wet due to water droplets attached to the lower surface of the inner stopper 10. It is. In addition, the capped container 100E of this embodiment can be further improved in usability by including the cap unit 1E described above.

(Sixth embodiment)
Next, as a sixth embodiment of the present invention, a capped container 100F including a cap unit 1F shown in FIG. 6, for example, will be described.
Note that FIG. 6 is a sectional view showing the configuration of a capped container 100F including a cap unit 1F. Furthermore, in the following description, the description of parts equivalent to the capped container 100A provided with the cap unit 1A will be omitted, and the same reference numerals will be given in the drawings.

As shown in FIG. 6, the capped container 100F of this embodiment includes a cap unit 1F that is detachably attached to the container body 2 instead of the cap unit 1A.

Specifically, this cap unit 1F has basically the same configuration as the cap unit 1A described above, except that the shape of the water stop packing 12 and the shape of the lower surface of the inner stopper 10 are different. That is, this water stop packing 12 has a lower surface side protrusion 18 that projects in the diameter reduction direction from a position that contacts the outer circumferential portion of the lower surface side of the inner stopper 10 over the entire circumference. On the other hand, a lower surface recess 17 is provided on the lower surface of the inner stopper 10, similar to the cap unit 1E described above. Thereby, a gap S is provided between the upper surface of the lower surface side protrusion 18 and the lower surface of the inner stopper 10 over the entire circumference.

In the capped container 100F of the present embodiment having the above configuration, when the cap unit 1F is removed from the container body 2, water droplets attached to the lower surface of the inner stopper 10 due to the inclination of the cap unit 1F are removed from the lower surface recess 17. It flows into the gap S formed between the lower surface side protrusion 18 of the water stop packing 12 and the lower surface recess 17 along the inclined surface 17a. In this case, by collecting water droplets in the gap S and the lower surface recess 17, it is possible to suppress the water droplets attached to the lower surface of the inner stopper 10 from falling.

As a result, in the capped container 100F of the present embodiment, when the cap unit 1F is removed from the container body 2, it is possible to prevent water droplets attached to the lower surface of the inner stopper 10 from wetting the surrounding area. .

Further, in the capped container 100F of the present embodiment, the lower surface side protrusion 18 of the water stop packing 12 can be easily pinched due to the gap S formed between it and the lower surface of the inner stopper 10. In this case, the water stop packing 12 can be easily removed from the inner stopper 10 (cap body 8) by elastically deforming (pulling and stretching) the water stop packing 12 while pinching the lower surface side protrusion 18. .

As described above, in the capped container 100F of the present embodiment, when the cap unit 1F is removed from the container body 2, it is possible to prevent water droplets attached to the lower surface of the inner stopper 10 from wetting the surrounding area. It is. Further, in the capped container 100F of this embodiment, by including the cap unit 1F described above, it is possible to further improve usability.

(Seventh embodiment)
Next, as a seventh embodiment of the present invention, a capped container 100G including a cap unit 1G shown in FIG. 7, for example, will be described.
Note that FIG. 7 is a cross-sectional view showing the configuration of a capped container 100G including a cap unit 1G. Furthermore, in the following description, the description of parts equivalent to the capped container 100A provided with the cap unit 1A will be omitted, and the same reference numerals will be given in the drawings.

As shown in FIG. 7, the capped container 100G of this embodiment includes a cap unit 1G that is detachably attached to the container body 2 instead of the cap unit 1A.

Specifically, this cap unit 1G has basically the same configuration as the cap unit 1A described above, except that the shape of the water stop packing 12 and the shape of the lower surface of the inner stopper 10 are different. That is, similar to the cap unit 1F, this water stop packing 12 has a lower surface protrusion 18 that protrudes in the radial direction from a position where it contacts the outer circumferential portion of the lower surface of the inner stopper 10 over the entire circumference. have. On the other hand, a lower surface protrusion 14 is provided on the lower surface of the inner stopper 10, similarly to the cap unit 1B. Further, the bottom wall portion 10a constituting the lower surface convex portion 14 is connected above the lower end of the reduced diameter portion 10c. Thereby, a gap S is provided between the upper surface of the lower surface side protrusion 18 and the lower surface of the inner stopper 10 over the entire circumference.

In the capped container 100G of the present embodiment having the above-described configuration, when the cap unit 1G is attached to the container body 2, water droplets attached to the lower surface of the inner stopper 10 are removed onto the inclined surface 14a of the lower surface protrusion 14. It is possible to make it easier to fall along the inside of the container body 2.

On the other hand, when the cap unit 1G is removed from the container body 2, water droplets adhering to the lower surface of the inner stopper 10 due to the inclination of the cap unit 1G are moved along the inclined surface 14a of the lower surface protrusion 14 to the lower surface of the water stop packing 12. It flows into the gap S formed between the side protrusion 18 and the side protrusion 18 .

At this time, the number of water droplets adhering to the lower surface of the inner stopper 10 is smaller than in the case of the cap unit 1A, and the amount of water droplets that accumulate in the gap S is suppressed. Therefore, it is possible to further suppress the falling of water droplets adhering to the lower surface of the inner stopper 10.

As a result, in the capped container 100G of the present embodiment, when the cap unit 1G is removed from the container body 2, it is possible to prevent water droplets attached to the lower surface of the inner stopper 10 from wetting the surrounding area. .

In addition, in the capped container 100G of the present embodiment, the gap S formed between the cap and the bottom surface of the inner stopper 10 makes it easy to grasp the bottom protrusion 18 of the water stop packing 12. In this case, the water stop packing 12 can be easily removed from the inner stopper 10 (cap body 8) by elastically deforming (pulling and stretching) the water stop packing 12 while pinching the lower surface side protrusion 18. .

As described above, in the capped container 100G of the present embodiment, when the cap unit 1G is removed from the container body 2, it is possible to suppress the water droplets attached to the lower surface of the inner stopper 10 from wetting the surrounding area. It is. Further, in the capped container 100G of this embodiment, by including the cap unit 1G described above, it is possible to further improve usability.

(Eighth embodiment)
Next, as an eighth embodiment of the present invention, lower surface side protrusions 19 and 20 shown in FIGS. 8(A) and 8(B), for example, will be described.

Note that FIG. 8(A) is a cross-sectional view of a main part showing the configuration of the lower surface side protrusion 19. As shown in FIG. FIG. 8(B) is a cross-sectional view of a main part showing the configuration of the lower surface side protrusion 20. As shown in FIG. Further, in the following description, the description of parts equivalent to the water stop cap 12 will be omitted, and the same reference numerals will be given in the drawings.

The water stop packing 12 shown in FIGS. 8(A) and 8(B) has lower surface protrusions 19 and 20 that protrude in a direction away from a position where it contacts the lower surface of the inner stopper 10 over the entire circumference. are doing. Among these, the lower surface side protrusion 19 shown in FIG. 8(A) has a vertical surface 19a that is perpendicular to the lower surface of the inner stopper 10 on its inner peripheral side. On the other hand, the lower surface side protrusion 20 shown in FIG. 8(B) has a reverse inclined surface 20a that is at an obtuse angle with respect to the lower surface of the inner plug 10 on its inner peripheral side.

When using the water stop packing 12 having such a configuration, water droplets adhering to the lower surface of the inner stopper 10 are removed from the container along the vertical surface 19a of the lower surface side protrusion 19 and the reversely inclined surface 20a of the lower surface side protrusion 20. It is possible to cause water droplets to fall inside the main body 2.

Therefore, the water stop packing 12 shown in FIGS. 8(A) and 8(B) is suitably used for the cap unit provided with the lower surface recess 17 described above. That is, in a state where the cap unit is attached to the container body 2, water droplets attached to the lower surface of the inner stopper 10 flow down from the center of the lower surface of the inner stopper 10 to the outer circumferential side along the inclined surface 17a of the lower surface recess 17. Thereafter, water droplets can fall into the inside of the container body 2 along the vertical surface 19a of the lower surface side protrusion 19 of the water stop packing 12 and the reversely inclined surface 20a of the lower surface side protrusion 20.

Thereby, when the cap unit is removed from the container body 2, it is possible to prevent water droplets adhering to the lower surface of the inner stopper 10 from wetting the surrounding area.

(Ninth embodiment)
Next, as a ninth embodiment of the present invention, a structure in which shape-changing parts 21A to 21D are provided in a part of the lower surface side protrusion 13 shown in FIGS. 9(A) to 9(D), for example, will be described.

Note that FIG. 9(A) is a cross-sectional perspective view of a main part showing the configuration of the shape changing portion 21A. FIG. 9(B) is a cross-sectional perspective view of a main part showing the configuration of the shape changing part 21B. FIG. 9(C) is a cross-sectional perspective view of a main part showing the configuration of the shape changing portion 21C. FIG. 9(D) is a cross-sectional perspective view of a main part showing the configuration of the shape changing portion 21D. Further, in the following description, the description of parts equivalent to the water stop cap 12 will be omitted, and the same reference numerals will be given in the drawings.

The water stop packing 12 shown in FIGS. 9(A) to 9(D) has shape-changing parts 21A to 21D in which the shape of a part of the lower surface side protrusion 13 is changed. Among these, the shape changing portion 21A shown in FIG. 9(A) is constituted by a substantially V-shaped notch that cuts out a part of the lower surface side protrusion 13. On the other hand, the shape changing portion 21B shown in FIG. 9(B) is located on the inner peripheral side of the lower surface side protrusion 13 and is constituted by a groove portion having a substantially V-shaped cross section whose width gradually increases downward. . On the other hand, the shape changing portion 21C shown in FIG. 9(C) is constituted by a protruding piece in which a part of the lower surface side protruding portion 13 is made to protrude in a pointed shape from the tip side. On the other hand, the shape changing portion 21D shown in FIG. 9(D) is constituted by an eaves portion in which a part of the lower surface side protrusion portion 13 is made to protrude in a pointed shape from the inner peripheral side toward the diameter reduction direction.

When the water stop packing 12 having such a configuration is used, the water droplets accumulated in the gap S are easily drained, and the water droplets accumulated in the gap S are moved along the shape changing parts 21A to 21D to the container body 2. It is possible to drop it inside. Further, the shape changing parts 21A to 21D are also effective when the user intentionally shakes off water droplets that have accumulated in the gap S.

(Tenth embodiment)
Next, as a tenth embodiment of the present invention, a capped container 100H including a cap unit 1H shown in FIG. 10, for example, will be described.
Note that FIG. 10 is a cross-sectional view showing the configuration of a capped container 100H including a cap unit 1H. Furthermore, in the following description, the description of parts equivalent to the capped container 100A provided with the cap unit 1A will be omitted, and the same reference numerals will be given in the drawings.

As shown in FIG. 10, the capped container 100H of this embodiment includes a cap unit 1H that is detachably attached to the container body 2 instead of the cap unit 1A.

Specifically, this cap unit 1H has basically the same configuration as the cap unit 1A described above, except that the shape of the lower surface of the inner stopper 10 is different. That is, the lower surface of the inner stopper 10 is provided with at least one or more (three in this embodiment) lower surface convex portions 22 formed in a ring shape (circular shape in this embodiment) in plan view. .

The plurality of lower surface protrusions 22 are arranged concentrically from the center of the lower surface of the inner stopper 10. Further, each of the lower surface convex portions 22 has a pointed shape that projects downward from the bottom wall portion 10a that constitutes the lower surface of the inner stopper 10 in a substantially triangular shape in cross-sectional view.

In this embodiment, the plurality of lower surface protrusions 22 are arranged concentrically from the center, but a single lower surface protrusion 22 may be arranged. Alternatively, the inner stopper 10 may be arranged offset from the center of the lower surface. Further, the lower surface convex portion 22 is not limited to the circular shape in plan view as described above, but may be formed, for example, in an elliptical shape. Further, the lower surface convex portion 22 is not limited to the above-mentioned pointed shape that protrudes in a substantially triangular shape in cross-sectional view, but may be in the shape of a thin plate that protrudes. Furthermore, the lower surface convex portion 22 can also be formed by utilizing the contraction of the resin material when molding the inner plug 10.

In the capped container 100H of the present embodiment having the above-described configuration, when the cap unit 1H is attached to the container body 2, water droplets adhering to the lower surface of the inner stopper 10 are removed along the lower surface convex portion 22 of the container. It is possible to make it easier to fall inside the main body 2.

On the other hand, when removing the cap unit 1H from the container body 2, the cap 1H is rotated with respect to the container body 2 in a direction to release the threaded engagement between the male threaded portion 11 and the female threaded portion 6. At this time, the centrifugal force acting on the inner stopper 10 allows water droplets adhering to the lower surface of the inner stopper 10 to fall into the inside of the container body 2 along the lower surface protrusion 22.

On the other hand, when the cap unit 1H is removed from the container body 2, water droplets adhering to the lower surface of the inner stopper 10 due to the inclination of the cap unit 1H move along the lower surface of the inner stopper 10 and cause the water stopper 12 to protrude from the lower surface side. It flows into the gap S formed between the part 13 and the part 13.

In this case, by collecting water droplets in the gap S, it is possible to suppress the water droplets attached to the lower surface of the inner stopper 10 from falling. Moreover, in the cap unit 1H of this embodiment, there are fewer water droplets attached to the lower surface of the inner stopper 10 than in the case of the cap unit 1A, and the amount of water droplets that accumulate in the gap S is suppressed. Therefore, it is possible to further suppress the falling of water droplets adhering to the lower surface of the inner stopper 10.

As a result, in the capped container 100H of the present embodiment, when the cap unit 1H is removed from the container body 2, it is possible to prevent water droplets attached to the lower surface of the inner stopper 10 from wetting the surrounding area. .

Further, in the capped container 100H of the present embodiment, the gap S formed between the cap and the bottom surface of the inner stopper 10 makes it easy to grip the bottom protrusion 18 of the water stop packing 12. In this case, the water stop packing 12 can be easily removed from the inner stopper 10 (cap body 8) by elastically deforming (pulling and stretching) the water stop packing 12 while pinching the lower surface side protrusion 18. .

As described above, in the capped container 100H of the present embodiment, when the cap unit 1H is removed from the container body 2, it is possible to prevent water droplets attached to the lower surface of the inner stopper 10 from wetting the surrounding area. It is. Further, the capped container 100H of this embodiment can further improve usability by including the cap unit 1H described above.

Note that the present invention is not necessarily limited to the embodiments described above, and various changes can be made without departing from the spirit of the present invention.
For example, the cap units 1A to 1H may have a structure in which a portion or the entire lower surface of the inner plug 10 described above is processed with fine irregularities. Regarding the uneven processing, the surface of the bottom wall portion 10a constituting the lower surface of the inner stopper 10 may be subjected to, for example, a textured processing.

In the cap units 1A to 1H, by increasing the surface area of the bottom surface of the inner plug 10 with such unevenness processing, water droplets attached to the bottom surface of the inner plug 10 can grow to a larger size. Thereby, it is possible to make it easy for the water droplets that have grown large to fall into the inside of the container body 2. Furthermore, when the cap units 1A to 1H are removed or reattached from the container body 2 described above, the water droplets that have grown large can easily fall into the inside of the container body 2 while involving surrounding water droplets. It is.

Further, the cap units 1A to 1H are configured such that the inner stopper 10 is screwed into the container body 2 while being fitted inward from the upper opening 2a of the container body 2. However, the configuration is not necessarily limited to this. For example, the cap units 1A to 1H may be configured such that the outer lid 9 is screwed onto the container body 2 while covering the upper opening 2a of the container body 2 from the outside.

In the case of this configuration, instead of the female threaded part 6 and the male threaded part 11 described above, a male threaded part provided on the outer peripheral surface of the mouth and neck part 2d and an inner peripheral surface of the peripheral wall part 9a constituting the outer lid 9 are used. The outer lid 9 (cap body 8) may be configured to be detachably attached to the container body 2 by screwing with a provided female threaded portion.

Further, the cap units 1A to 1H are configured to directly open and close the upper opening 2a of the container body 2, but are not necessarily limited to such a configuration. For example, it is also possible to have a structure in which the lid body is attached to the cap body attached to the container body 2 so as to be openable and closable.

In the case of this configuration, the lid body may be attached to the cap body by screwing, or the lid body may be rotatably attached to the cap body via a hinge part. Good too.

In addition, in the above-mentioned embodiment, the case where the present invention is applied to a beverage container that has a heat retention function (or cold retention function) by the container body 2 having the vacuum insulation structure described above is exemplified, but the container body and The present invention can be widely applied to containers with caps that include a cap unit that is detachably attached to a container body.

1A to 1H...Cap unit 2...Container body 3...Outer container 4...Inner container 5...Vacuum insulation layer 6...Female threaded part 7...Protruding part 8...Cap body 9...Outer lid 10...Inner stopper 11...Male threaded part 12... Water stop packing (sealing member) 13, 18, 19, 20... Lower surface protrusion 14, 15, 16... Lower surface convex part 17... Lower surface recess 21A to 21D... Shape changing part 22... Lower surface protrusion 100A to 100H... Container with cap S…Gap

Claims (7)

A cap unit that is detachably attached to a container body with an open top,
an outer lid that covers the upper opening of the container body;
an inner stopper located at the center of the inner side of the outer lid and fitted into the inner side of the container body from the upper opening;
a sealing member located on the outer periphery of the lower end of the inner stopper and sealing between the container body and the inner stopper;
The cap unit is characterized in that the sealing member has a lower surface side protrusion that protrudes over the entire circumference in a direction away from a position where it contacts the lower surface of the inner stopper over the entire circumference . The lower surface side protrusion has an inclined surface on its inner peripheral side that is at an acute angle with respect to the lower surface of the inner stopper,
The cap unit according to claim 1, wherein a gap is provided between the inclined surface and the lower surface of the inner stopper. A cap unit that is detachably attached to a container body with an open top,
an outer lid that covers the upper opening of the container body;
an inner stopper located at the center of the inner side of the outer lid and fitted into the inner side of the container body from the upper opening;
a sealing member that is detachably attached to the outer periphery of the lower end of the inner stopper and seals between the container body and the inner stopper;
The sealing member has a lower side protrusion that protrudes all the way in the diameter reduction direction from a position that contacts the outer circumference of the lower side of the inner stopper over the entire circumference ,
A cap unit characterized in that a gap is provided between the upper surface of the lower surface side protrusion and the lower surface of the inner stopper. The cap unit according to any one of claims 1 to 3 , wherein the sealing member is made of a ring-shaped elastic member and is detachably attached to the outer circumference of the lower end side of the inner stopper. . The cap unit according to any one of claims 1 to 4 , wherein the inner stopper has a lower surface concave portion that is recessed upward on the lower surface thereof. The cap unit according to any one of claims 1 to 5 , characterized in that the inner plug has an uneven finish applied to a part or the entire lower surface thereof. The cap unit according to any one of claims 1 to 6 ,
A container with a cap, comprising: a container body to which the cap unit is attached.

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