JP2014037250A - Double bottle structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a double bottle structure in which an inner container can be cooled from the bottom inside an outer container, and in which the inner container is prevented from tumbling in the outer container.SOLUTION: A double bottle structure includes: an inner container; an outer container; and a fixing member. The inner container accommodates fluid and has a flow port for the fluid. The outer container has an aperture at a top part through which the inner container is inserted and accommodated so that a gap is formed between an outer surface of the inner container and an inner surface of the outer container. The fixing member fixes the inner container in the outer container. The flow port of the inner container is disposed above the aperture of the top part of the outer container, and coolant can be supplied to the gap through the aperture of the top part of the outer container. In the vicinity of a bottom part of at least either of the outer container and the inner container, a projection member is formed. The projection member supports the bottom part of the inner container from below at an interval from the bottom part of the outer container. The fixing member pressures the inner container from above toward the bottom part of the outer container.

Description

  The present invention relates to a double bottle structure that has an inner container that contains a liquid and an outer container that contains an inner container, and can cool the liquid in the inner container with a cooling liquid.

  Conventionally, it has an inner container for storing a liquid such as a beverage and an outer container for storing the inner container, and the liquid in the inner container is caused to flow in a gap between the outer surface of the inner container and the inner surface of the outer container. A double bottle structure that can be cooled by a coolant is known (see Patent Document 1). Here, in Patent Document 1, a net is stretched at a position slightly higher than the bottom surface inside the outer container, and the cooling water is placed in the gap between the two containers with the inner container disposed on the net. Will be washed away. As a result, heat exchange is performed between the liquid in the inner container and the cooling water not only through the side surface of the inner container but also through the bottom surface of the inner container, so that the high-temperature liquid is efficiently cooled. It has come to be.

JP 2002-107022 A

However, in the structure of Patent Document 1, there is a possibility that the inner container falls over in the outer container due to the water flow below the inner container, and liquid spills from the inner container.
An object of the present invention is to provide a double bottle structure capable of preventing the inner container from falling over in the outer container while allowing the inner container to be cooled from the bottom surface in the outer container.

  The double bottle structure according to the first aspect of the present invention includes an inner container, an outer container, and a fixing member. The inner container contains a liquid and has a liquid circulation port. The outer container has an opening in the upper part, and accommodates the inner container inserted through the upper opening so that a gap is formed between the outer surface of the inner container and the inner surface of the outer container. The fixing member fixes the inner container in the outer container so that the gap is formed. Further, the circulation port in the inner container is disposed above the opening in the upper part of the outer container, and the coolant can be supplied to the gap through the opening in the upper part of the outer container. A convex member is formed near the bottom of at least one of the outer container and the inner container. The convex member supports the bottom surface portion of the inner container from below with a space from the bottom surface portion of the outer container. The fixing member presses the inner container from above toward the bottom surface of the outer container.

  This double bottle structure has an inner container for storing a liquid such as a beverage and an outer container for storing the inner container, and the liquid in the inner container is divided between the outer surface of the inner container and the inner surface of the outer container. It is comprised so that it can cool with the cooling fluid sent through a clearance gap. Then, the bottom surface portion of the inner container is supported from below by a convex member disposed near the bottom surface portion of at least one of the outer container and the inner container. The vessel can be cooled from the bottom. Here, the inner container is pressed from above toward the bottom surface of the outer container by the fixing member. As a result, the inner container can be pressed from above by the fixing member in the outer container, and can be pressed from below by the convex member, and is stably fixed in the outer container. Therefore, the inner container is prevented from falling inside the outer container. Here, since the inner container is stably fixed in the outer container, the inner container and the outer container can be used integrally. Furthermore, since the cooling liquid can be supplied from the upper opening of the outer container, if the cooling liquid is continuously supplied, the cooling liquid continues to be filled in the gap between the outer container and the inner container and is supplied excessively. The cooling liquid overflows from the outer container. Thus, the inner container is effectively cooled by the continuously supplied coolant. At this time, since the circulation port in the inner container is disposed above the opening at the top of the outer container, the coolant can be prevented from flowing into the inner container.

  The double bottle structure which concerns on the 2nd viewpoint of this invention is a double bottle structure which concerns on a 1st viewpoint, Comprising: A fixing member has a frame-shaped site | part. The frame-shaped part is arranged along the upper opening of the outer container. The fixing member is configured to be able to supply the cooling liquid to the gap through the internal space of the frame-shaped part. That is, here, the inner container is fixed in the outer container by a fixing member having a frame-like portion along the upper opening of the outer container. That is, the fixing member is stable with respect to the outer container, and as a result, the inner container is more stable in the outer container. Further, since the fixing member has a frame-like portion and is configured to be able to supply the cooling liquid through the internal space, the flow area of the cooling liquid can be widened. Therefore, as described above, even if the cooling liquid is continuously supplied, the cooling liquid effectively circulates through the gap.

  The double bottle structure which concerns on the 3rd viewpoint of this invention is the double bottle structure which concerns on a 2nd viewpoint, Comprising: A fixing member further has a 1 or several press part. The pressing part extends inward and downward from the frame-like part and presses the inner container from above toward the bottom surface of the outer container. In other words, here, the inner container is pressed from the upper side to the lower side in the outer container by one or a plurality of pressing parts extending inward and downward from the frame-like part along the upper opening of the outer container. That is, since the inner container is pressed by a pressing portion continuous with the stable frame-shaped portion with respect to the outer container, the inner container is more stable in the outer container.

  The double bottle structure which concerns on the 4th viewpoint of this invention is the double bottle structure which concerns on either of the 1st viewpoint to the 3rd viewpoint, Comprising: An inner container is detachable with respect to an outer container. That is, here, while the inner container is fixed in the outer container, the liquid in the inner container can be cooled by the cooling liquid flowing through the gap, and after cooling, the inner container is placed in the outer container. Can be taken out from. Therefore, only the inner container that is taken out from the outer container and reduced in size can be stored in a relatively small space such as a pocket of the refrigerator. In addition, when removing the cooling liquid accumulated in the gap between the inner container and the outer container, the cooling liquid in the outer container can be surely removed by removing the cooling liquid from the inner container.

  The double bottle structure according to the fifth aspect of the present invention is the double bottle structure according to any of the first to fourth aspects, wherein the convex member is formed by a protrusion provided near the bottom surface of the outer container. It is configured. Therefore, here, the inner container is more stable in the outer container.

  The double bottle structure according to the sixth aspect of the present invention is the double bottle structure according to any one of the first to fifth aspects, wherein the portion of the inner container facing the gap is formed of metal. be able to. Therefore, here, heat exchange is efficiently performed between the liquid in the inner container and the coolant flowing in the gap between the inner container and the outer container.

  The double bottle structure according to the seventh aspect of the present invention is the double bottle structure according to any one of the first to sixth aspects, and the inner container has a main body portion and a lid portion. The main body defines a storage space for storing a liquid and has an opening at the top. The lid portion closes the opening at the top of the main body portion. Further, the above-described circulation port is formed in the lid portion. And the circulation port of a cover part is smaller than the opening of the upper part of a main-body part.

  Here, the lid portion of the inner container closes the upper opening for injecting the liquid into the main body portion of the inner container, but the lid has a liquid circulation port having a smaller inner diameter than the opening. . Therefore, it becomes easy to pour the liquid from the inner container into the cup after cooling.

  The double bottle structure according to the eighth aspect of the present invention is the double bottle structure according to any one of the first aspect to the seventh aspect, and the outer container has a handle. Here, since the inner container is stably fixed in the outer container as described above, the inner container and the outer container can be used integrally. Therefore, the user can carry the inner container together with the outer container or pour the liquid in the inner container into a cup or the like by holding the inner container while using the inner container while being fixed in the outer container. can do.

  According to the present invention, the bottom surface portion of the inner container is supported from the bottom with a gap from the bottom surface portion of the outer container by the convex member disposed near the bottom surface portion of at least one of the outer container and the inner container. The inner container can be cooled from the bottom by the cooling liquid. Here, the inner container is pressed from above toward the bottom surface of the outer container by the fixing member. As a result, the inner container can be pressed from above by the fixing member in the outer container, and can be pressed from below by the convex member, and is stably fixed in the outer container. Therefore, the inner container is prevented from falling inside the outer container. Here, since the inner container is stably fixed in the outer container, the inner container and the outer container can be used integrally. Furthermore, since the cooling liquid can be supplied from the upper opening of the outer container, if the cooling liquid is continuously supplied, the cooling liquid continues to be filled in the gap between the outer container and the inner container and is supplied excessively. The cooling liquid overflows from the outer container. Thus, the inner container is effectively cooled by the continuously supplied coolant. At this time, since the circulation port in the inner container is disposed above the opening at the top of the outer container, the coolant can be prevented from flowing into the inner container.

The external appearance perspective view of the double bottle structure which concerns on one Embodiment of this invention. The figure which looked at the double bottle structure from the substantially side. The exploded view of FIG.

Hereinafter, a double bottle structure 1 according to an embodiment of the present invention will be described with reference to the drawings. Here, the case where the double bottle structure of the present invention is applied to a beverage container will be described.
<1. Overview of double bottle structure>
As shown in FIGS. 1 to 3, the double bottle structure 1 includes an inner container 10 that contains a liquid such as a beverage, and an outer container 20 that detachably houses the inner container 10. This liquid is configured to be cooled by the cooling liquid flowing in the gaps S <b> 1 and S <b> 2 between the outer surface of the inner container 10 and the inner surface of the outer container 20. Further, the double bottle structure 1 has a fixing member 30, and the inner container 10 is stably fixed in the outer container 20 by the fixing member 30. The double bottle structure 1 can be used in various situations. As a typical method of use, for example, after boiling tea in a kettle, hot tea is poured from the kettle into the inner container 10. . Then, tap water is poured into the gaps S1 and S2 from the tap and the tea in the inner container 10 is cooled. Hereinafter, the configuration of each unit will be described in detail.

<2. Configuration of each part>
<2-1. Inner container>
The inner container 10 has a main body portion 12 that defines a storage space S3 for storing a liquid such as a beverage, and a lid portion 11 that is detachably attached to the main body portion 12 so as to close an opening A1 in the upper portion of the main body portion 12. . The lid portion 11 is formed with a circulation port A3. The circulation port A3 communicates with the accommodation space S3 in the main body portion 12 through the opening A1 in a state where the lid portion 11 is attached to the main body portion 12. To do. The lid portion 11 is composed of a cylindrical lid body 11b whose upper portion is closed and a nozzle 11a extending radially outward from the upper portion of the lid body 11b, and a circulation port A3 is formed at the tip of the nozzle 11a. Has been. That is, the circulation port A3 opens in the horizontal direction. Therefore, when the inner container 10 is tilted in the horizontal direction in a state where the lid portion 11 is attached to the main body portion 12, the liquid in the accommodation space S3 is easily poured out through the circulation port A3. Note that the nozzle 11a and the lid body 11b of the lid portion 11 are both plastic members having low thermal conductivity. An annular groove into which a ring member 11c described later is fitted is formed on the outer peripheral surface of the lower portion of the lid main body 11.

  Here, the circulation port A3 is smaller than the opening A1. Therefore, by attaching the lid portion 11 to the main body portion 12, rather than pouring the liquid in the accommodation space S 3 directly from the main body portion 12 through the opening A 1 without attaching the lid portion 11, Liquid can be easily poured into a cup or the like. That is, the lid 11 has the nozzle 11a, so that the inner container 10 can be used as a pot. On the other hand, when pouring liquid from the kettle or the like into the accommodation space S3, the lid 11 is removed from the main body 12 in order to secure a larger inlet and facilitate the work. In addition, although the inner container 10 can be used alone, it can be used for new applications by combining with the outer container 20.

  The main body 12 is a member made of stainless steel having high thermal conductivity, and is a substantially cylindrical container with a bottom as a whole. Specifically, the main body 12 includes an upper side surface 12a that defines the opening A1, a slope 12b that continues below the upper side 12a, a lower side 12c that continues below the slope 12b, A bottom surface portion 12d continuous with the side surface portion 12c. Here, the upper side surface portion 12a is a cylindrical member, and the lower side surface portion 12c is a cylindrical member having a slightly larger diameter than the upper side surface portion 12a. The slope portion 12b is a hollow truncated cone-shaped member that connects the lower end edge of the upper side surface portion 12a and the upper end edge of the lower side surface portion 12c, and the bottom surface portion 12d is a disk that is continuous with the lower end edge of the lower side surface portion 12c. Shaped member.

  A ring member 11c made of an elastic material such as rubber having substantially the same diameter is firmly fitted on the outer surface of the lower portion of the substantially cylindrical lid body 11b, which is a part of the lid portion 11. That is, the ring member 11c is fitted in the annular groove of the lid body 11b. The ring member 11c has a cylindrical portion and a plurality of pleats extending radially and circumferentially on the outer surface thereof. Further, the outer diameter of the ring member 11c is substantially equal to the size of the opening A1 of the main body portion 12. Accordingly, when the lower portion of the lid portion 11 is inserted into the upper side surface portion 12a of the main body portion 12 that defines the opening A1, a plurality of pleats of the ring member 11c come into contact with the inner peripheral surface of the upper side surface portion 12a and contract. As a result, the ring member 11c is firmly and liquid tightly fitted into the upper side surface portion 12a. On the other hand, when the lid portion 11 is inserted into the upper side surface portion 12a and the lid portion 11 is pulled upward by applying a certain force or more, the plurality of pleats of the ring member 11c are elastically deformed, and the lid portion 11 is It is extracted from the upper side surface portion 12a.

<2-2. Outer container>
The outer container 20 is a plastic member having low thermal conductivity, and includes a cup-shaped main body 21 and a handle 22 disposed on the outer surface of the main body 21. The main body 21 is a bottomed cylindrical container having an opening A2 in the upper part, and accommodates the inner container 10 to be inserted through the upper opening A2.

  On the bottom surface portion 21 a of the main body portion 21, four protrusions 40 having a substantially L shape and the same shape are formed. These protrusions 40 are equally spaced in the circumferential direction (that is, 90 °) so that portions corresponding to the corners of the L-shape are aligned on the boundary line between the side surface portion 21b and the bottom surface portion 21a of the main body portion 21. Are placed apart). And these protrusions 40 receive the lower part of the main body part 12 of the inner container 10 inserted through the upper opening A2 at the inner part of the L-shaped corner. As a result, in a state where the inner container 10 is housed in the outer container 20, there is a gap between the outer surface of the main body portion 12 of the inner container 10 and the inner surface of the main body portion 21 of the outer container 20 by the width of the protrusion 40. In addition, gaps S1 and S2 are formed. Specifically, as shown in FIG. 2, the gap S <b> 1 is formed between the slope portion 12 b and the lower side surface portion 12 c of the main body portion 12 and the side surface portion 21 b of the main body portion 21, that is, on the side of the inner container 10. Is defined, and a gap S <b> 2 is defined between the bottom surface portion 12 d of the main body portion 12 and the bottom surface portion 21 a of the main body portion 21, that is, below the inner container 10. In the present embodiment, it is assumed that the protrusion 40 is made of plastic like the main body 21 and is integrally molded with the main body 21.

<2-3. Fixed member>
The fixing member 30 is a plastic member, and is a member that is detachably connected to the main body portion 21 of the outer container 20 in order to stably fix the inner container 10 in the outer container 20. Specifically, the fixing member 30 includes a substantially circular ring-shaped frame 31 arranged along the upper opening A2 of the outer container 20, and a lower side of the inner peripheral surface of the frame 31 from the lower end edge. Plate-like four claws 32 extending obliquely to the right. The inner peripheral surface of the frame 31 forms an inclined surface that is inclined inward and downward at substantially the same angle as the claw 32, and four claws 32 are formed on the inner peripheral surface at equal intervals in the circumferential direction (that is, 90 ° apart). Further, an annular groove is formed on the lower surface of the frame body 31, and a female screw (not shown) is formed in this groove. The female screw groove is screwed with a male screw 23 formed on the outer side of the side portion 21b of the outer container 20. That is, in the present embodiment, the fixing member 30 and the outer container 20 are fixed in a screw manner.

  And in the state which accommodated the main-body part 12 of the inner container 10 in the main-body part 21 of the outer container 20, the slope part 12b of the inner container 10 is located near opening A2 of the upper part of the outer container 20, and the upper side surface part 12a is In this state, the outer container 20 protrudes upward. In addition, in a state where the frame body 31 is fixed to the upper portion of the main body portion 21 of the outer container 20 via the above-described screw mechanism (hereinafter referred to as a fixed state), a part of the upper side surface portion 12a and the slope portion 12b of the inner container 10 is obtained. Is inserted into the internal space of the frame body 31, and a part of the upper side surface portion 12a protrudes upward. And the front-end | tip of the four nail | claw 32 contacts the slope part 12b of the inner container 10, and presses the inner container 10 by screwing the fixing member 30 in the outer container 20. FIG. Here, as described above, the four claws 32 extend inward and downward from the frame 31, but are arranged at equal intervals in the circumferential direction. The force to press is canceled and only the force to press downward acts. When the fixing member 30 is attached to the outer container 20, the lid portion 11 of the inner container 10 is removed and only the main body portion 12 is accommodated in the outer container 20. Then, after attaching the fixing member 30 to the outer container 20, the lid portion 11 is attached to the upper side surface portion 12 a of the inner container 10 protruding from the fixing member 30. At this time, the tip of the nozzle 11a of the lid portion 11 extends to the vicinity of the outer peripheral surface of the outer container 20, but may be configured to protrude radially outward from the outer container 20.

  Further, as shown in FIG. 1, in the fixed state, the internal space of the frame 31 communicates with the gaps S <b> 1 and S <b> 2 between the inner container 10 and the outer container 20 through the opening A <b> 2 on the upper part of the outer container 20. Yes. Accordingly, the coolant can be supplied to the gaps S1 and S2 between the inner container 10 and the outer container 20 through the inner space of the frame 31 and the opening A2 communicating with the inner space.

<3. Usage>
Hereinafter, as a typical method for using the double bottle structure 1, a method for cooling tea boiled in a kettle will be described in detail.
First, the user removes the lid 11 from the main body 12 of the inner container 10 and accommodates the main body 12 in the main body 21 of the outer container 20. At this time, the fixing member 30 is removed from the outer container 20 in advance so that the main body 12 inserted into the main body 21 via the opening A2 does not interfere with the fixing member 30 around the opening A2. Thereafter, the fixing member 30 is screwed to the upper portion of the main body 21.

  As a result of the above operation, the main body portion 12 of the inner container 10 is formed by the four claws 32 of the fixing member 30 and the four protrusions 40 formed on the bottom surface portion 21a of the outer container 20. It is stably fixed in the portion 21. At this time, gaps S <b> 1 and S <b> 2 are secured between the outer surface of the main body 12 and the inner surface of the main body 21. Specifically, in this state, the bottom surface portion 12d of the main body portion 12 of the inner container 10 is supported from below by the protrusion 40 with a gap (gap S2) from the bottom surface portion 21a of the outer container 20. At the same time, the lower part of the lower side surface part 12c of the main body part 12 of the inner container 10 is pressed from the side toward the inner side by the projection 40. As a result, the inclined surface part 12b and the lower side surface part 12c of the main body part 12 are It arrange | positions from the side part 21b of the outer container 20 at intervals (gap S1). At the same time, the main body 12 of the inner container 10 is pressed by the claws 32 toward the bottom surface 21 a of the outer container 20 from above. That is, the main body portion 12 of the inner container 10 is pressed in the main body portion 21 of the outer container 20 both in the vertical direction and radially inward, and the balance between these forces causes the clearance S1 between the main body portion 21 and the main body portion 21. , S2 is maintained firmly. As a result, in this state, the main body 12 does not jump out of the outer container 20 even if it is swung around the double bottle structure 1 (to be exact, the lid 11 has been removed. The same applies hereinafter). .

  In this state, hot tea is poured from the kettle into the accommodation space S <b> 3 of the main body 12 through the opening A <b> 1 at the top of the main body 12 of the inner container 10. Thereafter, the lid portion 11 is attached to the main body portion 12.

  Next, the user holds the handle 22 and carries the double bottle structure 1 to the sink, and arranges the gap S1 between the inner container 10 and the outer container 20 to be directly below the tap. As described above, since the outer container 20 is made of plastic, the heat of the hot tea in the inner container 10 is not easily transmitted to the handle 22, and the user can touch the handle 22 with a bare hand. Then, the user opens the tap and supplies tap water to the gap S1 and eventually to the gap S2 below the opening A2 of the outer container 20 and the internal space of the frame body 31 communicating with the opening A2. Thereby, heat exchange is performed between the low-temperature tap water flowing through the gaps S1 and S2 and the high-temperature tea in the accommodation space S3 via the side surface portions 12a to 12c and the bottom surface portion 12d of the inner container 10, The tea in the accommodation space S3 is rapidly cooled.

  At this time, the user keeps the tap open until the tea in the inner container 10 is sufficiently cooled, and the tap water warmed by heat exchange sequentially overflows from the gaps S1 and S2. Thus, cold tap water is always supplied into the gaps S1 and S2. After the tap water is poured into the gaps S1 and S2, the tap water circulates in the gaps S1 and S2, and then the gap S1 through the opening A2 of the outer container 20 and the internal space of the frame 31 communicating therewith. , S2. Here, as shown in FIG. 2, the circulation port A <b> 3 of the lid portion 11 of the inner container 10 is positioned above the opening A <b> 2 of the outer container 20 and the internal space of the frame body 31 communicating with the opening A <b> 2. Therefore, even if the tap water overflows through the opening A2 of the outer container 20 and the internal space of the frame body 31 communicating with the opening by leaving the tap of the tap open, it overflowed. There is no problem that water enters the inner container 10 through the circulation port A3 and is mixed with tea.

  Thereafter, when the cooling of the tea in the inner container 10 is finished, the user releases the fastening of the screw between the fixing member 30 and the outer container 20 and removes the fixing member 30 from the outer container 20. Subsequently, the inner container 10 is taken out from the main body 21 of the outer container 20 and the tap water remaining in the main body 21 is discarded.

  Thereafter, when it is desired to further cool the tea in the inner container 10 in the refrigerator, it is preferable to store the tea in the refrigerator with the inner container 10 removed from the outer container 20. Of course, the inner container 10 may be fixed again in the outer container 20 using the fixing member 30 before being stored in the refrigerator, but it is better to leave the inner container 10 exposed. This is because the tea inside can be cooled quickly. In addition, storing only the inner container 10 in the refrigerator is advantageous when there is not enough space in the refrigerator, and typically when the space on the back side of the refrigerator door is small.

  When the tea in the inner container 10 is to be poured into a cup or the like, the inner container 10 is fixed to the outer container 20 again using the fixing member 30. Accordingly, the user can easily pour tea in the inner container 10 into a cup or the like by holding the handle 22 of the outer container 20.

<4. Features>
<4-1>
In the double bottle structure 1 of the above-described embodiment, the bottom surface portion 12d of the inner container 10 is supported from below at a distance from the bottom surface portion 21a of the outer container 20 by the protrusions 40 disposed on the bottom surface portion 21a of the outer container 20. As a result, the inner container 10 can be cooled from the bottom by the coolant. In addition, the inner container 10 is pressed from above by the fixing member 30 toward the bottom surface portion 21 a of the outer container 20. As a result, the inner container 10 can be pressed from above by the fixing member 30 in the outer container 20, and can be pressed from below by the protrusions 40, and is stably fixed in the outer container 20. Accordingly, the inner container 10 is prevented from falling within the outer container 20. Moreover, since the inner container 10 is stably fixed in the outer container 20, the inner container 10 and the outer container 20 can be used integrally. Further, since the coolant can be supplied from the opening A2 at the top of the outer container 20, when the coolant is continuously supplied, the coolant fills the gaps S1 and S2 between the outer container 20 and the inner container 10. Subsequently, the excessively supplied cooling liquid overflows from the outer container 20. Thus, the inner container 10 is effectively cooled by the continuously supplied coolant. At this time, the circulation port A3 in the inner container 10 is disposed above the opening A2 in the upper part of the outer container 20 and the internal space of the frame 31 communicating with the upper container A2, so that the coolant flows into the inner container 10. Can be prevented.

<4-2>
In the above embodiment, the inner container 10 is detachable from the outer container 20. As a result, while the inner container 10 is fixed in the outer container 20, the liquid in the inner container 10 can be cooled by the coolant flowing through the gaps S1 and S2, while the inner container 10 is cooled after cooling. It can be taken out from the outer container 20. Therefore, only the inner container 10 that is taken out from the outer container 20 and reduced in size can be stored in a relatively small space such as a pocket of a refrigerator.

<4-3>
In the above embodiment, the lid portion 11 of the inner container 10 closes the upper opening A1 for injecting liquid into the main body portion 12, but the lid 11 has a liquid having a smaller inner diameter than the opening A1. A mouth A3 is formed. Therefore, it becomes easy to pour the liquid from the inner container 10 into the cup after cooling.

<4-4>
In the above embodiment, the outer container 20 has the handle 22, but the user can easily hold the handle of the outer container 20 by using the inner container 10 while being fixed in the outer container 20. Can be carried together with the outer container 20, or the liquid in the inner container 10 can be poured into a cup or the like.

<4-5>
In the above embodiment, the portions facing the gaps S1 and S2 of the inner container 10, that is, the upper side surface portions 12a to 12c and the bottom surface portion 12d are made of stainless steel. Therefore, heat exchange is efficiently performed between the liquid in the inner container 10 and the coolant flowing in the gaps S1 and S2 between the inner container 10 and the outer container 20. On the other hand, the outer container 20 is made of plastic. Therefore, even if a high-temperature liquid is injected into the inner container 10 from a kettle or the like while the inner container 10 is accommodated in the outer container 20, the heat of the liquid is not easily transmitted to the outside of the entire double bottle structure 1, and the user However, it becomes easy to operate the double bottle structure 1. Moreover, weight reduction of the double bottle structure 1 whole is achieved.

<4-6>
If the double bottle structure 1 of the said embodiment is used, a high temperature liquid can be rapidly cooled. As a result, tea can be prepared in response to a sudden visitor, and the flavor of tea can be maintained.

<5. Modification>
As mentioned above, although one Embodiment of this invention was described, this invention is not limited to the said embodiment, A various change is possible unless it deviates from the meaning. For example, the following changes can be made.

<5-1>
In the above embodiment, the protrusion 40 is formed on the bottom surface portion 21a of the outer container 20, but a gap can be secured between the bottom surface portion 12d of the inner container 10 and the bottom surface portion 21a of the outer container 20. If so, it may be arranged in another place near the bottom surface portion 21a, may be disposed near the bottom surface portion 12d of the inner container 10, or may be disposed near the bottom surface portion 21a and the bottom surface portion 12d. It may be arranged in both. Further, the protrusion 40 does not need to be along the side surface portion 12c of the inner container 10 and / or the side surface portion 21b of the outer container 20, and is disposed, for example, near the center of the bottom surface portion 12d and / or the bottom surface portion 21a. Also good.

<5-2>
The shape of the protrusion 40 is not limited to that described above, and any protrusion 40 can be used as long as it can support the bottom surface portion 12d of the inner container 10 from below with a space from the bottom surface portion 21a of the outer container 20. It can replace with the convex member.

<5-3>
In the above embodiment, the fixing member 30 and the outer container 20 are fixed to each other in a screw type. However, the fixing mode of the both members 30 and 20 is not limited to the above-described one. For example, the fixing member 30 is fixed to the outer container. 20 may be fixed in a one-touch manner using elastic deformation. Further, the mounting position of the fixing member 30 in the outer container 20 does not have to be in the vicinity of the opening A2 as in the above embodiment, and may be mounted in the outer container 20, for example.

<5-4>
In the said embodiment, although the cross-sectional view shape of the inner container 10 and the outer container 20 was circular, it can be made into arbitrary shapes, such as an ellipse shape and a rectangular shape.
<5-5>
The number of the claws 32 and the number of the protrusions 40 of the fixing member 30 in the above embodiment are exemplifications, and can be any number, and they may not be the same number.

<5-6>
The materials of the various parts exemplified in the above embodiment are examples and can be changed as appropriate. For example, the main body 12 of the inner container 10 may not be made of stainless steel, and the outer container 20 may not be made of plastic. For example, the inner container 10 can be formed of a material having high thermal conductivity other than stainless steel. Moreover, the main body 12 of the inner container 10 may be a combination of different materials such as a part made of metal and the rest made of plastic. The same applies to the outer container 20.

<5-7>
When the liquid in the inner container 10 is rapidly cooled, it is conceivable that the air pressure in the inner container 10 changes abruptly. Therefore, in the above embodiment, the circulation port A3 is kept open. However, a mechanism for opening and closing the circulation port A3 may be provided, and the circulation port A3 may be opened for use during cooling. For example, the lid 11 has a double structure, and a cylindrical member having a hole opened and a hole not opened along the radial direction is introduced inside the lid main body 11b. The nozzle 11a can be rotated around the cylindrical member, and when the hole of the cylindrical member and the nozzle 11a are aligned, the liquid in the inner container 10 can be poured out through the circulation port. .

<5-8>
Further, a cap can be provided on the nozzle 11 a of the inner container 10. By doing so, since the circulation port A3 is closed, the coolant in the gaps S1 and S2 can be discarded without removing the inner container 10 from the outer container 20 with the cap attached.
<5-9>
In the said embodiment, the shape of the nail | claw 32 is not restricted to what was mentioned above, If it can press the inner container 10 toward the bottom face part 21a of the outer container 20, it shall be set as arbitrary shapes. Can do.

<5-10>
Although the case where the double bottle structure is applied to a beverage container has been described in the above embodiment, the present invention is not limited to this and can be used for cooling liquids in general. That is, if the liquid to be cooled is accommodated in the inner container and the cooling liquid is supplied to the gap between the outer container and the inner container, the liquid in the inner container can be cooled, so the cooling object is not limited to beverages.

DESCRIPTION OF SYMBOLS 1 Double bottle structure 10 Inner container 11 Lid part 12 Main body part 12d Bottom face part 20 Outer container 21a Bottom face part 22 Handle 30 Fixing member 31 Frame (frame-shaped part)
32 Nail (pressing part)
40 Protrusion (convex member)
A1, A2 Opening A3 Distribution port S1, S2 Clearance

Claims (8)

An inner container containing a liquid and having a flow port for the liquid;
An outer container having an opening in the upper part and storing the inner container inserted through the upper opening so that a gap is formed between the outer surface of the inner container and the inner surface of the outer container When,
A fixing member for fixing the inner container in the outer container so that the gap is formed,
The flow port in the inner container is disposed above the upper opening of the outer container, and the coolant can be supplied to the gap through the upper opening of the outer container.
Near the bottom surface of at least one of the outer container and the inner container, a convex member is formed that supports the bottom surface of the inner container from below with a space from the bottom surface of the outer container,
The fixing member presses the inner container from above toward the bottom surface of the outer container;
Double bottle structure. The fixing member has a frame-like portion disposed along the upper opening of the outer container, and is configured to be able to supply the cooling liquid to the gap through an internal space of the frame-like portion. ing,
The double bottle structure according to claim 1. The fixing member further includes one or a plurality of pressing portions that extend inward and downward from the frame-shaped portion and press the inner container from above toward the bottom surface portion of the outer container.
The double bottle structure according to claim 2. The inner container is detachably accommodated with respect to the outer container.
The double bottle structure according to any one of claims 1 to 3. The convex member is constituted by a protrusion provided near the bottom surface of the outer container.
The double bottle structure according to any one of claims 1 to 4. The portion of the inner container that faces the gap is made of metal.
The double bottle structure according to any one of claims 1 to 5. The inner container is
Defining a storage space for storing the liquid, and a main body having an opening at the top;
And closing the upper opening of the main body portion, and having a lid portion formed with the flow port,
The flow port of the lid portion is smaller than the upper opening of the main body portion,
The double bottle structure according to any one of claims 1 to 6. The outer container has a handle;
The double bottle structure according to any one of claims 1 to 7.