JP3203301U - Beverage container - Google Patents

Abstract

An inner container and a hollow outer container are more firmly connected in a beverage container. SOLUTION: A hollow outer container, a cylindrical inner container accommodated inside the outer container, a heat medium accommodated between the outer container and the inner container, and the outer container and the inner container above the heat medium. A packing sandwiched between them and a cushion sandwiched between the bottom walls of the outer container and the inner container are provided. The outer container is provided with an inward convex portion that protrudes radially inward over the entire circumference in the upper portion. The inner container includes an inner peripheral wall disposed radially inward of the outer container, and a first mouth wall disposed downward from the upper end of the inner peripheral wall and radially outward of the upper portion of the outer container. The inner peripheral wall is provided with an outward convex portion protruding outward in the radial direction over the entire circumference in the upper portion thereof. A 1st opening wall pinches | interposes an outer container in the form which overlaps planarly on the radial direction outer side. An inward convex part and an outward convex part are provided with the elasticity which an outward convex part fits to the lower side of an inward convex part. The cushion combines non-water absorption and elasticity [selection figure] Fig. 2

Description

  The present invention relates to a beverage container including an inner container and a hollow outer container.

  As one of the beverage containers, a hollow outer container, a cylindrical inner container accommodated inside the outer container, a heat medium accommodated between the outer container and the outer container, and the outer container above the heat medium Japanese Patent Application Laid-Open No. H10-228707 discloses a packing that is sandwiched between inner containers.

  This beverage container is useful in that it can be kept at a cold temperature for a long time by putting it in a freezer and taking it out after a predetermined time and pouring the beer into it.

Utility Model Registration No. 3198698

  By the way, this container is a structure which connects an outer container and an inner container by inserting an inner container into the inner side of an outer container, and rotating each other in the circumferential direction. Specifically, in the connection structure, a female screw is formed over the entire inner circumference of the outer container in the radial direction, a male screw is formed over the entire outer circumference of the inner container in the radial direction, and the male screw and the female screw are connected. The structure is screwed. Therefore, this container connects the outer container and the inner container on the radially inner side of the outer container, but does not connect the outer container and the inner container on the radially outer side of the outer container.

  The present invention takes the above-mentioned circumstances into consideration, and its purpose is to more firmly connect the outer container and the inner container.

  The beverage container of the present invention includes a hollow outer container, a cylindrical inner container accommodated inside the outer container, a heat medium accommodated between the outer container and the outer container, and the outer container above the heat medium. And a packing sandwiched between the inner container and a cushion sandwiched between the bottom walls of the outer container and the inner container. The outer container is provided with an inward convex portion that protrudes radially inward over the entire circumference in the upper portion. The inner container includes an inner peripheral wall disposed on the radially inner side of the outer container, and a first mouth wall disposed downward from the upper end of the inner peripheral wall and disposed radially outward of the upper portion of the outer container. The inner peripheral wall is provided with an outward convex portion protruding outward in the radial direction over the entire circumference in the upper part thereof, and the first mouth wall sandwiches the outer container in a form overlapping with the outer side in the radial direction. An inward convex part and an outward convex part are provided with the elasticity which an outward convex part fits to the lower side of an inward convex part. The cushion combines non-water absorption and elasticity.

  The cushion only needs to have both non-water absorption and elasticity, and a more specific example is a closed foam.

  According to the beverage container of the present invention, the inward convex portion and the outward convex portion are elastically fitted on the inner side in the radial direction of the outer container, and the first mouth wall is overlapped on the outer side in the radial direction of the outer container. The outer container is sandwiched by the inner container from inside and outside in the radial direction, and the connection state between the outer container and the inner container becomes strong. Even if the beverage container is cooled in a freezer in a normal orientation and the heat medium is frozen and expanded, the cushion is sandwiched between the bottom walls of the outer container and the inner container, so there is no cushion at all. Compared to a beverage container in which the heat medium is filled between the bottom walls of the outer container and the inner container, the force that lifts the inner container can be reduced, and the connected state of the outer container and the inner container can be easily maintained. .

1 is an overall cross-sectional view showing a first embodiment of a beverage container of the present invention. It is an expanded sectional view of the A section which is a principal part showing a 1st embodiment of a beverage container of the present invention. It is sectional drawing which decomposed | disassembled the part corresponded to A part.

  A beverage container 1 according to a first embodiment of the present invention has a triple wall structure as shown in FIG. 1 and is hollow, that is, an outer container 2 having a first space portion 2a therein, and is accommodated inside the outer container 2. Inner container 5 connected to the upper part of outer container 2, heat medium 6 accommodated between outer container 2 and inner container 5, packing sandwiched between outer container 2 and inner container 5 above heat medium 6 7. A bottom cover 8 fixed to the bottom of the outer container 2 and a cushion 9 sandwiched between the outer container 2 and the inner container 5 below the heat medium 6 are provided.

  The outer container 2 has a double wall structure, includes first and second outer containers 3 and 4, and is integrated in a form in which the second outer container 4 is accommodated inside the first outer container 3. The first and second outer containers 3 and 4 are both processed metal plates and have elasticity. The first outer container 3 includes a cylindrical first outer peripheral wall 31 extending in the vertical direction and a first outer bottom wall 32 that closes the lower end of the first outer peripheral wall 31 and has a circular shape in plan view. The second outer container 4 extends in the vertical direction and closes the lower end of the cylindrical second outer peripheral wall 41 and the second outer peripheral wall 41 disposed concentrically on the radially inner side of the first outer peripheral wall 31 and in plan view. A circular second outer bottom wall 42 is provided.

Each of the first and second outer peripheral walls 31 and 41 has a shape that decreases in diameter as it goes downward as a whole. In addition, the first and second outer peripheral walls 31 and 41 include a superposed portion 2b that overlaps in the radial direction at the upper end portion of each other, and a first space portion 2a that is separated from each other in the radial direction below the superposed portion 2b.
Since the first and second outer peripheral walls 31 and 41 are separated in the radial direction and the first and second outer bottom walls 32 and 42 are separated in the vertical direction, the first space portion 2a has a bottomed cylindrical shape. Is formed. The first space 2a is formed at a negative pressure, in other words, a vacuum state.
The overlapping portion 2b is integrated by welding, and the upper ends of the first outer peripheral wall 31 and the second outer peripheral wall 41 are integrated over the entire circumference. That is, as shown in FIGS. 2 and 3, the overlapping portion 2b overlaps in the radial direction, and the outer overlapping portion 31a constituting the outer side in the radial direction is the upper end portion of the first outer peripheral wall 31 and constitutes the inner side in the radial direction. The inner overlapping portion 41 a is the upper end portion of the second outer peripheral wall 41.

  The second outer peripheral wall 41 has an inner overlapping portion 41a that is the upper end portion thereof, an inward protruding portion 41b that protrudes radially inward over the entire periphery below the overlapping portion 2b, and a lower portion from the entire periphery of the lower end of the inward protruding portion 41b A cylindrical second outer peripheral wall main body 41c is provided.

  The first outer peripheral wall 31 includes an outer overlapping portion 31a that is the upper end portion thereof, an annular first step portion 31b that protrudes radially outward over the entire circumference below the outer overlapping portion 31a, and a first step portion 31b. A base portion 31c that extends downward from the entire circumference of the outer periphery and overlaps the inner container 5 (a first mouth wall 53 described later) in the radial direction inside the surface, and extends radially outward over the entire circumference below the base portion 31c. A projecting annular second step portion 31d and a first outer peripheral wall body 31e extending downward from the entire outer periphery of the second step portion 31d are provided.

  As shown in FIG. 1, the first outer bottom wall 32 includes a bottom recess 32 a that is recessed upward in the central portion on the radially inner side. The bottom recess 32a has a first bottom recess 32b concentrically and disk-shaped with respect to a radially outer portion of the first outer peripheral wall 31, and a second recess recessed in a hemispherical shape at the center of the first bottom recess 32b. And a bottom recess 32c.

  As shown in FIG. 1, the bottom lid 8 is fitted into the first bottom recess 32b, and is slightly shorter than the depth of the first bottom recess 32b and has a dimension corresponding to the radius of the first bottom recess 32b (same or slightly (Long dimension) is provided with a cylindrical short wall portion 8a, and a bottom lid body 8b having a circular shape in plan view that closes the lower end of the short wall portion 8a.

  The inner container 5 has a single wall structure as shown in FIG. 1, is a processed metal plate, and has elasticity. Further, the inner container 5 closes the lower end of the cylindrical inner peripheral wall 51 extending in the vertical direction, the inner peripheral wall 51, and has a circular inner bottom wall 52 in a plan view, while projecting radially outward from the entire periphery of the upper end of the inner peripheral wall 51. A first mouth wall 53 extending downward is provided.

  As shown in FIGS. 2 and 3, the inner peripheral wall 51 is located on the radially inner side of the first mouth wall 53 and extends downward from the entire circumference of the upper end of the first mouth wall 53. The wall 51a includes an outward projection 51b that extends downward from the entire periphery of the lower end of the wall 51a and protrudes outward in the radial direction, and a cylindrical inner peripheral wall body 51c that extends downward from the entire periphery of the lower end of the outward projection 51b.

  The second mouth wall 51a and the outward projection 51b constitute the upper part of the inner peripheral wall 51. And the upper part of the inner peripheral wall 51 and the 1st opening wall 53 form the fitting part 51d which fits the outer container 2 in the state in which the packing 7 is accommodated.

The fitting portion 51d has a radial width W1 between the radially outer portion of the outward convex portion 51b and the first mouth wall 53, and the radially inner portion of the inward convex portion 41b and the base portion 31c. It is narrower than the width W2 in the radial direction. The fitting portion 51d has an outer diameter at the outermost radial portion of the outward convex portion 51b that is larger than an inner diameter at the innermost radial portion of the inward convex portion 41b.
The fitting portion 51d has an annular shape, and its cross-sectional shape (specifically, the shape of a one-side cross-section when cut in the vertical direction) is a U-shape that opens downward. The depth of the space formed inside the fitting portion 51d is the length from the lower end of the first mouth wall 53 to the back, and the packing 7 fitted to the overlapping portion 2b of the outer container 2 is used. The fitting part 51d accommodates the upper part of the outer container 2 in the lower part and the packing 7 on the upper part of the outer container 2 depending on the depth of the base part 31c. A space part larger than the volume of is formed. The packing 7 is accommodated in a state sandwiched from inside and outside in the radial direction below the large space portion, and an upper space portion 7s is provided above the packing 7 at the upper portion of the large space portion.

The outward convex part 51b is fitted to the lower side of the inward convex part 41b by the elasticity of each metal plate. Moreover, the outward convex part 51b makes the cross-sectional shape into the V shape which protrudes outward, the outward improvement piece 51s which comprises the upper side of V-shaped cross-sectional shape, and the outward which comprises the lower side of V-shaped cross-sectional shape A lower piece 51t is provided.
The outer improving piece 51s extends outward in the radial direction from the upper side to the lower side. The outward lower piece 51t extends radially inward from the upper side to the lower side.
Further, the outward convex portion 51 b faces the first mouth wall 53 in the radial direction, and as a vertical positional relationship, the most radially outer portion of the V-shaped cross-sectional shape is from the lower end of the first mouth wall 53. Is also located above.

The inward convex portion 41b has a V-shape projecting inward in its cross-sectional shape, an inwardly improving piece 41s constituting the upper side of the V-shaped cross-sectional shape, and an inwardly-lowering side constituting the lower side of the V-shaped cross-sectional shape A piece 41t is provided.
The inner improvement piece 41s extends radially inward from the upper side to the lower side. The inward lower piece 41t extends outward in the radial direction from the upper side to the lower side.
Further, the inward convex portion 41b faces the base portion 31c in the radial direction, and as a vertical positional relationship, the innermost portion in the radial direction of the V-shaped cross-sectional shape is between the upper end and the lower end of the base portion 31c. To position. Similarly, the most radially inner portion of the V-shaped cross-sectional shape is located above the lower end of the first mouth wall 53 that overlaps the base portion 31c.

The outward lower piece 51t and the inner improvement piece 41s rub against each other when the inner container 5 is inserted inside the outer container 2, and an acute angle θ1 formed by the outward lower piece 51t and a vertical line to facilitate insertion. Is made smaller than the acute angle θ2 formed by the inner improvement piece 41s and the vertical line.
Further, the outer improving piece 51s and the inward lowering piece 41t overlap when the inner container 5 and the outer container 2 are fitted, and the protruding length in the radial direction is inwardly lower than the outer improving piece 51s. 41t is longer, and therefore the inward convex portion 41b and the outward convex portion 51b are sufficiently fitted.

  The inner peripheral wall main body 51c has a cylindrical shape with a smaller diameter as it goes downward as a whole, and its outer diameter is smaller than the inner diameter at the most radially inner portion of the inward convex portion 41b at the entire height.

  The cushion 9 combines non-water absorption and elasticity, and is, for example, an independent foam. The cushion 9 has a disc shape, and its thickness is slightly smaller than the interval between the second outer bottom wall 42 and the inner bottom wall 52 which are the bottom walls of the outer container 2 and the inner container 5 before elastically deforming. The radius is larger than the radius of the inner bottom wall 52.

  As the heat medium 6, for example, a liquid cryogen (having a property of freezing or thawing in a range of −20 ° C. to −5 ° C.) is used. Note that the second space 6 a in which the heat medium 6 is accommodated is formed between the outer container 2 and the inner container 5 and between the overlapping part 2 b and the cushion 9.

  The packing 7 is elastically deformed, for example, made of rubber. Further, the packing 7 has an annular shape, and a lower surface thereof is provided with a slit 7a extending upward at the central portion in the radial direction over the entire circumference. The width of the slit 7a in the radial direction is slightly narrower than the radial width of the overlapping portion 2b.

The container 1 for beverages of 1st embodiment of this invention assembles except the bottom cover 8 as follows.
1) The cushion 9 is placed on the second outer bottom wall 42 of the outer container 2, and the heat medium 6 is put inside the outer container 2. In consideration of the fact that the heat medium 6 freezes and expands when the beverage container 1 is cooled in the freezer, the amount to be added is less than the volume of the second space 6a including the expansion.
2) The packing 7 is fitted into the overlapping portion 2b of the outer container 2.
3) Insert the inner container 5 inside the outer container 2.
3-1) When inserting, first, the inner peripheral wall body 51c portion of the inner container 5 is inserted inside the inward convex portion 41b of the outer container 2.
3-2) Next, the outward downward piece 51t of the outward convex part 51b of the inner container 5 is inserted while rubbing the innermost radial part of the inward convex part 41b. At this time, the outward downward piece 51t and the vertical line Since the formed acute angle θ1 is smaller than the acute angle θ2 formed by the inner improvement piece 41s and the vertical line, the outward downward piece 51t (outward convex part 51b) is inserted inside the inward convex part 41b. It becomes easy.
3-3) Immediately after the outward downward piece 51t starts to be inserted into the inward convex portion 41b, the first mouth wall 53 of the inner container 5 begins to overlap the base portion 31c of the outer container 2. Further, as the outward downward piece 51t is inserted deeply into the inward convex portion 41b, the packing 7 begins to be elastically deformed while being sandwiched between the first mouth wall 53 and the second mouth wall 51a. At this time, the packing 7 is elastically deformed toward a portion where the first mouth wall 53 and the second mouth wall 51a are continuous (to the back of the space portion of the fitting portion 51d).
3-4) When the radially outermost part of the outward convex part 51b is inserted below the innermost radial part of the inward convex part 41b, the outward convex part 51b is mutually below the inward convex part 41b. And the outer container 2 and the inner container 5 are integrated. At this time, the lower end of the first mouth wall 53 of the inner container 5 is placed on the second step portion 31 d of the outer container 2. The cushion 9 is elastically deformed by being sandwiched between the outer container 2 and the inner container 5, and is deformed in the thickness direction between the second outer bottom wall 42 of the outer container 2 and the inner bottom wall 52 of the inner container 5. Block it. Moreover, although the outer peripheral part of the mutual bottom wall of the outer container 2 and the inner container 5 is curving in cross-sectional arc shape, the outer peripheral part of the cushion 9 is elastically deformed along the curved shape. The lower part of the second space part 6a is filled with the heat medium 6, and the upper part of the second space part 6a is a space. Thus, the beverage container 1 of the first embodiment is completed.

  In the beverage container 1 of the first embodiment, the inward convex portion 41b and the outward convex portion 51b are fitted by elasticity on the inner side in the radial direction of the outer container 2, and the first mouth wall 53 on the outer side in the radial direction of the outer container 2. Therefore, the outer container 2 is sandwiched by the inner container 5 from the inside and outside in the radial direction, and the connection state between the outer container 2 and the inner container 5 becomes strong.

  In addition, the base portion 31c and the first mouth wall 53 overlap in a planar shape from above the most radially inner portion of the inward convex portion 41b to below the most radially outer portion of the outward convex portion 51b. Therefore, the connection state of the outer container 2 and the inner container 5 becomes stronger.

  Further, since the cross-sectional shape of the inward convex portion 41b is a V-shape projecting inward, and the cross-sectional shape of the outward convex portion 51b is a V-shape projecting outward, the outward convex portion 51b is an inward convex portion. It becomes easy to put in 41b and it becomes difficult to come off.

  In addition, since the fitting portion 51d of the inner container 5 is provided with an upper space portion 7s above the packing 7 and when the outer container 2 and the inner container 5 are fitted, the packing 7 is easily crushed. 7, the sealed state of the outer container 2 and the inner container 5 becomes stronger, and the heat medium 6 is less likely to leak.

  The completed beverage container 1 according to the first embodiment is kept in a normal orientation as shown in FIG. 1, that is, in the orientation when pouring the liquid (with the bottom lid 8 facing down) and put in a freezer. When the medium 6 is frozen and expanded, the cushion 9 is sandwiched between the bottom walls of the outer container 2 and the inner container 5 (the second outer bottom wall 42 and the inner bottom wall 52). Compared to a beverage container in which there is no heat medium and the heat medium is filled between the bottom walls of the outer container and the inner container, the force that lifts the inner container 5 can be reduced, and the inward convex part 41b and the outward convex part The fitting state with 51b is maintained, and the connection state of the outer container 2 and the inner container 5 is maintained. In addition, the beverage container 1 of the first embodiment is turned upside down, that is, even if the heat medium 6 is frozen by placing it in the freezer so that the bottom lid 8 faces upward, the inward convex portion 41b and the outward direction are the same. The fitting state with the convex part 51b is maintained, and the connection state of the outer container 2 and the inner container 5 is maintained.

  The present invention is not limited to the above-described embodiment, and can be changed as appropriate without departing from the spirit of the present invention. For example, the cushion 9 is an independent foam in the above-described embodiment. However, the present invention is not limited to this, and as another example, an antifreeze liquid (freezing point lower than that of the heat medium) is contained in an elastic bag made of synthetic resin. It may be filled with a material).

DESCRIPTION OF SYMBOLS 1 Beverage container 2 Outer container 2a 1st space part 2b Superposition | polymerization part 3 1st outer container 31 1st outer peripheral wall 31a Outer superposition | polymerization part 31b 1st step part 31c Ground part 31d 2nd step part 31e 1st outer peripheral wall main body 32 1st 1 outer bottom wall 32a bottom concave portion 32b first bottom concave portion 32c second bottom concave portion 4 second outer container 41 second outer peripheral wall 41a inner overlapping portion 41b inward convex portion 41c second outer peripheral wall main body 41s inner improving piece θ2 inner improving piece and An acute angle formed by a vertical line 41t Inward lower piece W2 A radial width between the most radially outer portion of the inward convex portions and the base portion 42 Second outer bottom wall 5 Inner container 51 Inner peripheral wall 51a Second mouth wall 51b Outward convex portion 51c Inner peripheral wall body 51d Fitting portion 51s Outer improvement piece θ1 Acute angle formed by the outward downward piece and the vertical line 51t Outward downward piece W1 The radially inner portion and the first mouth wall of the outward convex portion Radial direction with Width 52 inner bottom wall 53 first mouth wall 6 heat medium 6a second space 7 packing 7a slit 7s upper space 8 bottom lid 8a short wall 8b bottom lid body 9 cushion

Claims (2)

A hollow outer container, a cylindrical inner container accommodated inside the outer container, a heat medium accommodated between the outer container and the inner container, and sandwiched between the outer container and the inner container above the heat medium Packing, equipped with a cushion sandwiched between the bottom walls of the outer container and the inner container,
The outer container is provided with an inward convex portion projecting radially inward over the entire circumference in the upper portion thereof,
The inner container includes an inner peripheral wall disposed on the radially inner side of the outer container, a first mouth wall disposed downward from the upper end of the inner peripheral wall and disposed radially outward of the upper part of the outer container,
The inner peripheral wall is provided with an outward convex portion protruding outward in the radial direction over the entire circumference in the upper portion thereof,
The first mouth wall sandwiches the outer container in a form overlapping the radially outer side thereof,
The inward convex portion and the outward convex portion are provided with elasticity that the outward convex portion fits below the inward convex portion,
The cushion is a beverage container characterized by having both non-water absorption and elasticity.   The beverage container according to claim 1, wherein the cushion is a closed foam.

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