JP2014111473A - Beverage container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a beverage container which uses a single component as a member for heat insulation and slip resistance and a member for maintaining airtightness.SOLUTION: A beverage container has a double wall structure composed of an inner container 1 and an outer container 2 and includes a short cylindrical elastic sleeve member 3 which fits on the inner container 1 or the outer container 2. The elastic sleeve member 3 integrally includes a seal part 6 for maintaining airtightness which is sandwiched by the inner container 1 and the outer container 2.

Description

  The present invention relates to a beverage container.

  Conventionally, a beverage container having a double wall structure by combining two cup-shaped containers has been proposed (see Patent Document 1).

Utility Model Registration No. 3159974

In the conventional beverage container, a packing is inserted between two cup-shaped containers to maintain the airtightness of the cavity between the double walls and improve the heat retention.
In addition, since conventional cups have cup-shaped containers made of synthetic resin or metal such as aluminum or stainless steel, the surface is slippery, and when a hot drink is placed inside the container, the user In some cases, heat was transmitted to the hand of the person, and a short cylindrical rubber sleeve for heat insulation and slip prevention was attached to the outer periphery.
In other words, in addition to two cup-shaped containers, two parts, a non-slip / heat-insulating sleeve and an airtight holding packing, have been required.

  Then, an object of this invention is to provide the drink container which combines the member for heat insulation and anti-slip, and airtight holding | maintenance with a single component.

  A beverage container according to the present invention is a beverage container having a double-wall structure having an interior container and an exterior container, and includes a short cylindrical elastic sleeve member fitted over the interior container or the exterior container, and the elastic sleeve The member integrally has an airtight seal portion sandwiched between the interior container and the exterior container.

  Also, an interior container having a bottomed cylindrical beverage storage portion, forming a cylindrical hanging wall on the outer peripheral wall of the beverage storage portion, and having an internally threaded spiral ridge formed on the inner peripheral surface of the hanging wall; The bottomed cylindrical outer casing is formed with a male thread-like spiral ridge that is screwed to the female thread-like spiral ridge on the outer peripheral surface of the opening peripheral edge, and the inner diameter is set larger than the outer diameter of the beverage container A container and a short cylindrical elastic sleeve member fitted on the hanging wall of the interior container, and the elastic sleeve member is clamped between a lower end edge of the hanging wall and the exterior container It has a seal part for hermetic maintenance.

  In addition, it has a bottomed cylindrical beverage container, and a cylindrical hanging wall is formed on the outer peripheral wall of the beverage container, and a plurality of small protrusions are disposed on a virtual spiral line on the inner peripheral surface of the hanging wall A male thread-like spiral ridge is formed on the outer peripheral surface of the inner container and the peripheral edge of the opening, and the inner diameter is set larger than the outer diameter of the beverage container. A bottom cylindrical outer container, and a short cylindrical elastic sleeve member fitted to the hanging wall of the inner container, the elastic sleeve member between the lower end edge of the hanging wall and the outer container It has an airtight holding seal that is sandwiched between the two.

In addition, the outer container is provided with an outer collar-shaped shoulder portion having a seal receiving surface, and a circumferentially protruding small elastic protrusion is formed on the lower end surface of the elastic sleeve member. In the elastic sleeve member, the seal portion is sandwiched between the lower end edge of the hanging wall and the receiving surface of the outer collar-shaped shoulder, and the elastic small protrusion is elastically deformed on the receiving surface. It is in pressure contact.
In addition, the elastic sleeve member has an inner flange near the upper end edge, and an upward protruding circumferential small convex portion is formed on the upper end surface, and the interior container is fitted into the fitting concave portion at the base end portion of the hanging wall. In the assembled and used state, the elastic sleeve member is configured such that the inner collar portion is fitted into the fitting concave portion and the small convex portion is elastically deformed and pressed against the inner container. is there.

Also, an interior container having a bottomed cylindrical beverage container, a cylindrical hanging wall formed on the outer peripheral wall of the beverage container, and an external thread formed on the outer peripheral surface of the hanging wall, and an opening peripheral end A bottomed cylindrical outer container in which an internal thread portion that is screwed into the external thread portion is formed on the inner peripheral surface of the edge portion, and an inner diameter is set larger than an outer diameter of the beverage container, and the opening of the outer container A short cylindrical elastic sleeve member fitted to the peripheral edge portion, and the elastic sleeve member is sealed between the inner container and the upper end of the opening peripheral edge portion for airtight holding It has a part integrally.
The elastic sleeve member has a folded piece that is folded inward.

  According to the beverage container of the present invention, the elastic sleeve member can play the role of heat insulation and anti-slip, and the role of maintaining the airtightness of the gap between the inner container and the outer container at the seal portion, and is elastic. A single sleeve member can also serve two functions and reduce the number of parts. The airtightness of the space between the interior container and the exterior container is maintained, and the drink can be reliably kept warm.

It is sectional drawing which showed the assembly use state of one Embodiment of this invention. It is the exploded view which showed the drink container of this invention. It is a principal part expanded sectional view of an assembly use state. It is a principal part expanded sectional view which showed the seal part of the free state. It is a principal part expanded sectional view which showed the modification of the seal | sticker part. It is sectional drawing which showed the assembly use state of other embodiment of this invention. It is a principal part sectional front view showing an interior container. It is a bottom view of an interior container. It is a principal part expanded sectional view of an assembly use state. It is the principal part expanded sectional view which showed the elastic sleeve member of the free state. It is a simplification figure for demonstrating the arrangement position of a small protrusion. It is sectional drawing which showed the assembly use state of another embodiment of this invention.

Hereinafter, the present invention will be described in detail with reference to the drawings illustrating embodiments.
As shown in FIGS. 1 and 2, the beverage container of the present invention is a double wall tumbler having a double wall structure with an interior container 1 and an exterior container 2. The beverage container of the present invention includes a short cylindrical elastic sleeve member 3 that is externally fitted to the interior container 1 (or the exterior container 2), and the elastic sleeve member 3 is hermetically sealed between the interior container 1 and the exterior container 2. The holding seal portion 6 is integrally provided.
In the present invention, the elastic sleeve member 3 is made of silicon resin, and has a heat resistant temperature of 140 ° C. and a cold resistant temperature of −20 ° C. and has a hardness satisfying the conditions of 50 degrees to 60 degrees.

The interior container 1 has a bottomed cylindrical beverage storage portion 10, a cylindrical hanging wall 11 is formed on the outer peripheral wall of the beverage storage portion 10, and an internally threaded spiral ridge 15 is formed on the inner peripheral surface 11 a of the hanging wall 11. Is formed. A gap 12 is formed between the beverage container 10 and the hanging wall 11. The interior container 1 has a fitting recess 5 formed at the base end of the hanging wall 11.
The inner container 1 and the outer container 2 are made of a synthetic resin molded product, a metal such as aluminum or stainless steel, or glass. As the synthetic resin, for example, Eastman Tritan copolyester (registered trademark), or a thermoplastic resin such as heat-resistant PET resin or AS resin is used. The inner container 1 and the outer container 2 are excellent in heat resistance and cold resistance, have designability and easy processing characteristics, have a beautiful appearance that combines high transparency and gloss, and are strong and strong. desirable.

The outer container 2 is formed in a bottomed cylindrical shape, and a male thread-like spiral ridge 25 is formed on the outer peripheral surface 20a of the opening peripheral edge 20 to be screwed into the female thread-like spiral ridge 15. The outer container 2 is set to have an inner diameter D ₂ larger than the outer diameter D ₁ of the beverage container 10.
The outer container 2 is provided with a protruding outer shoulder 8 having a horizontal seal receiving surface 24. The exterior container 2 is formed as a cylindrical insertion tube portion 21 from the outer flange-shaped shoulder portion 8 to the opening peripheral edge portion 20, and the insertion tube portion 21 can be inserted into the gap 12 in the hanging wall 11 of the interior container 1. It is formed as. The insertion cylinder part 21 is formed slightly longer than the length dimension L ₁ of the hanging wall 11. Moreover, the exterior container 2 has the outer wall part 22 provided in a row from the outer collar-shaped shoulder part 8 to the bottom part.
That is, the elastic sleeve member 3 is externally fitted to the hanging wall 11 of the interior container 1, and the insertion tube portion 21 of the exterior container 2 is inserted into the suspension wall 11 of the interior container 1, so that the interior container 1 and the exterior container 2 are connected. By rotating each other, the male screw-like spiral ridges 25 are screwed into the female screw-like spiral ridges 15 and are fastened to each other. In the assembled and used state, a heat retaining gap 4 is formed between the beverage container 10 (outer wall surface) of the inner container 1 and the outer container 2 (inner wall surfaces of the plug-in cylinder part 21 and the outer wall part 22). .

As shown in FIG. 4, the elastic sleeve member 3 is formed with a circumferential elastic small ridge 9 protruding downward on the lower end surface 3a. Moreover, it has the inner collar part 3c in the upper end edge vicinity.
In the assembled and used state shown in FIG. 3, the seal portion 6 is sandwiched between the lower end edge portion 11b of the hanging wall 11 and the receiving surface 24 of the outer collar-shaped shoulder portion 8, and the elastic small protrusion 9 is received while being elastically deformed. It is in pressure contact with the surface 24. The elastic sleeve member 3 has an inner flange portion 3 c fitted in the fitting recess 5.

As shown in FIG. 3 and FIG. 4, the elastic sleeve member 3 has a folded piece portion 7 that is folded back toward the inner peripheral surface 11 a side while holding the lower end edge portion 11 b of the hanging wall 11.
With this configuration, when the seal portion 6 is compressed and elastically deformed in the assembled and used state of FIG. 3, it is possible to securely seal and maintain airtightness without causing escape in the direction of arrow Z in the drawing. Is possible.
Further, the gap G between the lower end edge portion 11b of the hanging wall 11 and the receiving surface 24 of the outer collar-shaped shoulder portion 8 is substantially the same as the thickness of the seal portion 6 (see FIG. 4) excluding the elastic small protrusions 9. Is set to In other words, when the upper end edge 23 of the plug-in cylinder portion 21 comes into contact with the interior container 1, the seal portion 6 is interposed between the lower end edge portion 11 b of the hanging wall 11 and the receiving surface 24 of the outer collar-shaped shoulder portion 8. A gap G having a height dimension substantially the same as the thickness dimension is secured, and is configured not to be screwed any further. That is, in the assembled and used state, the seal portion 6 is not subjected to excessive compression only by the elastic small protrusion 9 being elastically deformed. With this configuration, even when the seal portion 6 or the receiving surface 24 slips due to getting wet with water, the seal portion 6 is reliably held without escaping in the Z direction.

As shown in FIG. 3, the internally threaded spiral ridge 15 is formed from the base end portion to the upper half intermediate position in the inner peripheral surface 11 a of the hanging wall 11. Further, the male thread-like spiral ridge 25 is a position near the tip of the insertion tube portion 21 corresponding to the female thread-like spiral ridge 15, and the vertical length L ₀ on the outer peripheral surface 20 a of the opening peripheral edge 20. Is formed over.
Length L ₁ of the depending wall 11 is set to 2 to 5 times the length L ₀ of the male screw-shaped spiral ridges 25, further height H of the elastic sleeve member 3 in the assembled using state The length dimension L ₀ of the male thread-like spiral ridge 25 is set to 2.5 times to 5.5 times. The lower end edge portion 11b of the inner peripheral surface 11a of the hanging wall 11 is surrounded by the folded piece portion 7 and is in a range from the upper end of the lower end edge portion 11b to the lower end of the female threaded spiral ridge 15. , smooth curved surfaces 16 are formed over a length dimension L _2. The length dimension L ₂ of the smooth saddle curved surface 16 is set to be larger than the length dimension L ₀ of the male thread-like spiral ridge 25.
With this configuration, when the inner container 1 and the outer container 2 are rotated relative to each other to release the screwing of the female screw-shaped spiral protrusion 15 and the male screw-shaped spiral protrusion 25, the male screw-shaped spiral protrusion 25 slides on the folded piece portion 7. Suppressing the generation of abnormal noise in contact.
In addition, it is preferable to set the height dimension H of the elastic sleeve member 3 to 30 mm-45 mm, and it is wider than a human thumb.

The interior container 1 has an opening peripheral edge 13 formed in a thin shape. Specifically, the wall thickness t ₀ of the opening peripheral edge portion 13 is set to 1.5 mm to 2.5 mm. According to this configuration, when drinking a drink with the lips applied to the peripheral edge edge 13 of the opening, it is easy to drink with a light hit.
Moreover, as for the drink accommodating part 10, the bottom wall part 14 is formed in the hemispherical shape. That is, the gap dimension t ₁ from the side wall part of the beverage container 10 to the outer wall part 22 of the outer container 2, and the gap dimension t ₂ from the bottom wall part 14 of the beverage container 10 to the corner part of the outer container 2, In comparison, t ₁ <t ₂ . Therefore, since the heat retaining gap 4 is thickly formed at a place where heat easily escapes, the heat retaining property when a hot beverage is put into the beverage housing 10 is improved, and the beverage housing 10 is cold. It is possible to reliably prevent condensation when a beverage is added.

Next, another embodiment of the present invention will be described.
As shown in FIGS. 6 to 9, the interior container 1 has a bottomed cylindrical beverage container 10, and a cylindrical hanging wall 11 is formed on the outer peripheral wall of the beverage container 10 and the inside of the hanging wall 11 is formed. A plurality of small protrusions 18 are disposed on the virtual spiral line of the peripheral surface 11a. A gap 12 is formed between the beverage container 10 and the hanging wall 11. The interior container 1 has a plurality of holes 29 penetrating the hanging wall 11, and a fitting recess 5 is formed at the base end of the hanging wall 11.
The outer container 2 is formed in a bottomed cylindrical shape, and a male thread-like spiral ridge 25 is formed on the outer peripheral surface 20 a of the opening peripheral edge 20 to be screwed into the plurality of small protrusions 18. The outer container 2 is set to have an inner diameter D ₂ larger than the outer diameter D ₁ of the beverage container 10.

The outer container 2 is provided with a protruding outer shoulder 8 having a horizontal seal receiving surface 24. The exterior container 2 is formed as a cylindrical insertion tube portion 21 from the outer flange-shaped shoulder portion 8 to the opening peripheral edge portion 20, and the insertion tube portion 21 can be inserted into the gap 12 in the hanging wall 11 of the interior container 1. It is formed as. The insertion cylinder part 21 is formed slightly longer than the length dimension L ₁ of the hanging wall 11. Moreover, the exterior container 2 has the outer wall part 22 provided in a row from the outer collar-shaped shoulder part 8 to the bottom part. The inner container 1 and the outer container 2 are made of a synthetic resin molded product, a metal such as aluminum or stainless steel, or glass.
That is, the elastic sleeve member 3 is externally fitted to the hanging wall 11 of the interior container 1, and the insertion tube portion 21 of the exterior container 2 is inserted into the suspension wall 11 of the interior container 1, so that the interior container 1 and the exterior container 2 are connected. By rotating each other, male screw-like spiral ridges 25 are screwed into the plurality of small protrusions 18 and fastened to each other. In the assembled and used state, a heat retaining gap 4 is formed between the beverage container 10 (outer wall surface) of the inner container 1 and the outer container 2 (inner wall surfaces of the plug-in cylinder part 21 and the outer wall part 22). .

As shown in FIG. 10, the elastic sleeve member 3 is formed with a circumferential elastic small ridge 9 projecting downward on the lower end surface 3a. Further, an inner flange portion 3c is provided in the vicinity of the upper end edge, and a circumferential small convex portion 17 that protrudes upward is formed on the upper end surface 3b. In addition, the inner peripheral surface of the elastic sleeve member 3 is roughened in order to improve the sliding with the hanging wall 11.
In the assembled and used state shown in FIG. 9, the elastic sleeve member 3 has the seal portion 6 clamped between the lower end edge portion 11 b of the hanging wall 11 and the receiving surface 24 of the outer collar-shaped shoulder portion 8, It is in pressure contact with the receiving surface 24 while being elastically deformed. Further, the elastic sleeve member 3 has the inner flange portion 3c fitted in the fitting recess 5, and the small projection 17 is pressed against the interior container 1 while being elastically deformed.

As shown in FIGS. 9 and 10, the elastic sleeve member 3 has a folded piece portion 7 that is folded back to the inner peripheral surface 11 a side with the lower end edge portion 11 b of the hanging wall 11 being held.
With this configuration, when the seal portion 6 is compressed and elastically deformed under the assembled and used state of FIG. 9, it is possible to securely seal and maintain airtightness without causing escape in the direction of arrow Z in the figure. Is possible.
Further, the gap G between the lower end edge portion 11b of the hanging wall 11 and the receiving surface 24 of the outer collar-shaped shoulder portion 8 is substantially the same as the thickness of the seal portion 6 (see FIG. 10) excluding the elastic small protrusions 9. Is set to In other words, when the upper end edge 23 of the plug-in cylinder portion 21 comes into contact with the interior container 1, the seal portion 6 is interposed between the lower end edge portion 11 b of the hanging wall 11 and the receiving surface 24 of the outer collar-shaped shoulder portion 8. A gap G having a height dimension substantially the same as the thickness dimension is secured, and is configured not to be screwed any further. That is, in the assembled and used state, the seal portion 6 is not subjected to excessive compression only by the elastic small protrusion 9 being elastically deformed. With this configuration, even when the seal portion 6 or the receiving surface 24 slips due to getting wet with water, the seal portion 6 is reliably held without escaping in the Z direction.
Further, the elastic sleeve member 3 transmits the compressive force acting on the seal portion 6 from the lower end surface 3a to the upper end surface 3b when the lower end surface 3a is pressed against the receiving surface 24 in the assembled and used state. The portion 17 is pressed against the interior container 1 with an appropriate pressure to maintain the airtightness of the heat retaining space 4.

As shown in FIG. 8, four small projecting pieces 18 are formed on the inner peripheral surface 11a of the hanging wall 11 at equal intervals with a central angle of 90 °. In other words, the four small protrusions 18 are “partial screws”. That is, when the protrusions are connected along the virtual spiral, a female screw is formed that is screwed into the male screw-shaped spiral protrusion 25, and each of the four small protrusions 18 has a male screw-shaped spiral protrusion 25. It is arrange | positioned in the height position corresponding to. That is, a difference in height according to the gradient of the male screw-shaped spiral protrusion 25 is generated between two small protrusions 18 and 18 adjacent on the virtual spiral (see FIG. 11).
As shown in FIG. 7, the hole 29 of the interior container 1 is formed at an upper proximity position corresponding to the small protrusion 18. This is because, in the process of manufacturing the interior container 1 by a method such as injection molding, the small protrusions 18 are formed using a split mold. At this time, a hole 29 is formed at a position close to (above) the small protrusion 18. In the manufacturing process, molten resin is put into the divided mold and cooled and solidified to form the inner container 1, and the divided mold is separated and removed in the radial direction (radially outward direction). For this reason, the side end surfaces 18a and 18a of the small projecting piece 18 and the side end surfaces 29a and 29a of the hole 29 are inclined so as to be parallel to the virtual radiation (see FIGS. 7 and 8).

The male thread-like spiral ridge 25 is formed in the vicinity of the distal end of the insertion tube portion 21, and is formed on the outer peripheral surface 20 a of the opening peripheral end edge portion 20 in the vertical direction length L ₀ .
Length L ₁ of the depending wall 11 is set to 2 to 5 times the length L ₀ of the male screw-shaped spiral ridges 25, further height H of the elastic sleeve member 3 in the assembled using state The length dimension L ₀ of the male thread-like spiral ridge 25 is set to 2.5 times to 5.5 times. Of the inner peripheral surface 11a of the hanging wall 11, the lower end edge portion 11b is surrounded by the folded piece portion 7, and the length dimension is within the range from the upper end of the lower end edge portion 11b to the small protrusion piece 18. smooth curved surface 16 is formed over L _2. The length dimension L ₂ of the smooth saddle curved surface 16 is set to be larger than the length dimension L ₀ of the male thread-like spiral ridge 25.
With this configuration, when the inner container 1 and the outer container 2 are rotated relative to each other to release the small protrusion 18 and the male screw-shaped spiral protrusion 25 from being screwed together, the male screw-shaped spiral protrusion 25 is brought into sliding contact with the folded piece portion 7. Abnormal noise is suppressed. Further, since the small protrusion 18 is formed in a partially threaded shape, the inner peripheral surface 11a of the hanging wall 11 (interior container 1) when the inner container 1 and the outer container 2 are screwed and when the screw is released. And the outer peripheral surface 20a of the outer container 2 can be prevented from being damaged, and the generation of abnormal noise can be suppressed.
In addition, it is preferable to set the height dimension H of the elastic sleeve member 3 to 30 mm-45 mm, and it is wider than a human thumb.

The interior container 1 has an opening peripheral edge 13 formed in a thin shape. Specifically, the wall thickness t ₀ of the opening peripheral edge portion 13 is set to 1.5 mm to 2.5 mm. According to this configuration, when drinking a drink with the lips applied to the peripheral edge edge 13 of the opening, it is easy to drink with a light hit.
Moreover, as for the drink accommodating part 10, the bottom wall part 14 is formed in the hemispherical shape. That is, the gap dimension t ₁ from the side wall part of the beverage container 10 to the outer wall part 22 of the outer container 2, and the gap dimension t ₂ from the bottom wall part 14 of the beverage container 10 to the corner part of the outer container 2, In comparison, t ₁ <t ₂ . Therefore, since the heat retaining gap 4 is thickly formed at a place where heat easily escapes, the heat retaining property when a hot beverage is put into the beverage housing 10 is improved, and the beverage housing 10 is cold. It is possible to reliably prevent condensation when a beverage is added.

The usage method (action) of the beverage container of the present invention described above will be described.
The elastic sleeve member 3 is externally fitted to the hanging wall 11 of the interior container 1, and the insertion tube portion 21 of the exterior container 2 is inserted into the suspension wall 11 of the interior container 1 so that the interior container 1 and the exterior container 2 are mutually connected. Rotate. The male threaded spiral ridge 25 is screwed into the female threaded spiral ridge 15 or the plurality of small projecting pieces 18 in the hanging wall 11 and tightened until the opening peripheral edge 20 of the outer container 2 hits the inner container 1 and stops. At this time, in the elastic sleeve member 3, the seal portion 6 is compressed by being sandwiched between the lower end edge portion 11 b of the hanging wall 11 and the receiving surface 24 of the outer collar-shaped shoulder portion 8, and the elastic small protrusion 9 is elastically deformed. The temperature-retaining gap 4 is sealed (sealed) by being pressed against the receiving surface 24. The elastic sleeve member 3 suppresses the heat of the beverage contained in the beverage storage unit 10 from being transmitted to the user's hand, and is used as an anti-slip for the handle portion of the container.

  The design of the present invention can be changed. For example, as shown in FIG. 5, it is preferable that the elastic sleeve member 3 is formed with a concave portion 19 for compression escape in the seal portion 6. The concave portion 19 is formed close to the elastic small protrusion 9 (see FIG. 5A). In addition, it is also preferable to arrange | position the elastic small protrusion 9 in the center position of the seal part 6, and you may form the two recessed parts 19 and 19 in the both sides of the elastic small protrusion 9 (refer FIG.5 (b)). . Further, a plurality of small elastic ridges 9 may be formed. In this case, one or a plurality of concave portions 19 and 19 are formed in the vicinity of the small elastic ridges 9 (see FIGS. 5C and 5D). ). As described above, it is possible to appropriately adjust the compression clearance of the seal portion 6 in a state of being sandwiched between the interior container 1 and the exterior container 2, and sealing can be performed with an appropriate contact surface pressure.

Next, another embodiment of the present invention will be described.
As shown in FIG. 12, it has a bottomed cylindrical beverage storage portion 30, a cylindrical hanging wall 26 is formed on the outer peripheral wall of the beverage storage portion 30, and a male screw portion 27 is formed on the outer peripheral surface 26 a of the hanging wall 26. the inner container 31 which is internally threaded portion 42 screwed to the male screw portion 27 on the inner peripheral surface 40a of the opening peripheral edge portion 40 is formed larger set inside diameter D ₂ than the outer diameter D ₁ of the beverage reservoir 30 The bottomed cylindrical outer container 41 and a short cylindrical elastic sleeve member 33 that is externally fitted to the opening peripheral edge 40 of the outer container 41 are provided.
The elastic sleeve member 33 integrally includes an airtight holding seal portion 36 sandwiched between the inner container 31 and the upper end 40b of the opening peripheral edge portion 40.
That is, in FIG. 12, the internal container 31 has a male threaded portion 27 and the exterior container 41 has a female threaded portion 42. The elastic sleeve member 33 has a seal portion 36 at the upper end portion, and is attached so that the opening peripheral edge portion 40 of the outer container 41 is held in a hug shape. The elastic sleeve member 33 has a folded piece portion 7 that is folded inside the upper end 40 b of the opening peripheral edge 40.

  As described above, the beverage container according to the present invention is a short cylindrical elastic sleeve that is externally fitted to the interior container 1 or the exterior container 2 in the beverage container having a double wall structure with the interior container 1 and the exterior container 2. Since the elastic sleeve member 3 is integrally provided with an airtight holding seal portion 6 sandwiched between the inner container 1 and the outer container 2, the elastic sleeve member 3 has a role of heat insulation and anti-slip. And the role of a seal that keeps the airtightness of the gap between the inner container 1 and the outer container 2 at the seal portion 6, and the elastic sleeve member 3 alone serves as both parts The score can be reduced. The airtightness of the gap between the interior container 1 and the exterior container 2 can be maintained, and the drink can be reliably kept warm.

Moreover, it has a bottomed cylindrical beverage storage part 10, a cylindrical hanging wall 11 is formed on the outer peripheral wall of the beverage storage part 10, and a female threaded spiral protrusion 15 is formed on the inner peripheral surface 11 a of the hanging wall 11. and the inner container 1, the male screw-shaped spiral projection 25 is screwed into the female screw-like spiral ridge 15 on the outer circumferential surface 20a of the opening peripheral edge portion 20 is formed, the inner diameter D than the outer diameter D ₁ of the beverage accommodating portion 10 ₂ is provided with a bottomed cylindrical outer container 2 set to be large, and a short cylindrical elastic sleeve member 3 fitted on the hanging wall 11 of the inner container 1, and the elastic sleeve member 3 is provided on the hanging wall 11. Since the airtight holding seal 6 is sandwiched between the lower edge 11b and the outer container 2, the elastic sleeve member 3 has a role of heat insulation and anti-slip, and the seal 6 A role of a seal for maintaining the airtightness of the gap between the container 1 and the outer container 2; Can perform both, can be reduced the number of parts also serves a dual role in the elastic sleeve member 3 separately. The interior container 1 and the exterior container 2 can be easily separated, and in the assembled and used state, the airtightness of the gap between the interior container 1 and the exterior container 2 can be maintained, and the drink can be reliably kept warm. Even when the inner container 1 and the outer container 2 are made of a transparent resin, if the elastic sleeve member 3 is made of an opaque silicone resin, the female thread-shaped spiral protrusion 15 and the male thread-shaped spiral protrusion 25 cannot be seen from the outside. So it is excellent in appearance.

Moreover, it has the bottomed cylindrical drink accommodating part 10, forms the cylindrical hanging wall 11 in the outer peripheral wall of the drink accommodating part 10, and several small protrusions on the virtual spiral line of the internal peripheral surface 11a of the hanging wall 11 The inner container 1 in which 18 is disposed, and the outer thread 20 on the outer peripheral surface 20a of the peripheral edge 20 of the opening is formed with a male thread-like spiral ridge 25 that is screwed into the plurality of small protrusions 18. A bottomed cylindrical outer container 2 having an inner diameter D ₂ larger than ₁ and a short cylindrical elastic sleeve member 3 fitted on the hanging wall 11 of the inner container 1. Since the seal portion 6 for airtight holding that is sandwiched between the lower end edge portion 11b of the hanging wall 11 and the exterior container 2 is integrally provided, the elastic sleeve member 3 serves as a heat insulator and a slip stopper, The seal 6 that keeps the airtightness of the gap between the inner container 1 and the outer container 2 at the part 6 Can play a split, both, can be reduced the number of parts also serves a dual role in the elastic sleeve member 3 separately. The interior container 1 and the exterior container 2 can be easily separated, and in the assembled and used state, the airtightness of the gap between the interior container 1 and the exterior container 2 can be maintained, and the drink can be reliably kept warm. Even when the inner container 1 and the outer container 2 are made of a transparent resin, if the elastic sleeve member 3 is made of an opaque silicone resin, the small protrusion 18 and the male thread-like spiral protrusion 25 cannot be seen from the outside. Excellent aesthetic appearance. It is possible to prevent the male thread-like spiral protrusion 25 from being slidably contacted with the inner peripheral surface 11a of the hanging wall 11 and to prevent the generation of abnormal noise.

  Further, the outer container 2 is provided with an outer collar-shaped shoulder portion 8 having a seal receiving surface 24, and a downwardly projecting circumferential elastic small ridge 9 is formed on the lower end surface 3 a of the elastic sleeve member 3. In the assembled and used state, the elastic sleeve member 3 has the seal portion 6 sandwiched between the lower end edge portion 11b of the hanging wall 11 and the receiving surface 24 of the outer collar-shaped shoulder portion 8, and the elastic small protrusion 9 is elastically deformed. Since it is in pressure contact with the receiving surface 24, the seal portion 6 is compressed by surface contact with the receiving surface 24, and the repulsive force of the elastic small protrusion 9 can be used to reliably perform sealing with an appropriate contact surface pressure. it can.

  Further, the elastic sleeve member 3 has an inner flange portion 3c in the vicinity of the upper end edge and is formed with an upward projecting circumferential small convex portion 17 on the upper end surface 3b, and the interior container 1 has a plurality of hole portions in the hanging wall 11. 29 is formed, and the fitting recess 5 is formed at the base end portion of the hanging wall 11. Under the condition of assembly, the elastic sleeve member 3 is small in size while the inner collar portion 3 c is fitted into the fitting recess 5. Since the convex portion 17 is in pressure contact with the interior container 1 while being elastically deformed, water can enter from between the upper end surface 3b of the elastic sleeve member 3 and the interior container 1 using the repulsive force of the small convex portion 17. Therefore, the airtightness of the gap between the interior container 1 and the exterior container 2 can be maintained.

The interior container 31 includes a bottomed cylindrical beverage storage portion 30, a cylindrical hanging wall 26 is formed on the outer peripheral wall of the beverage storage portion 30, and a male screw portion 27 is formed on the outer peripheral surface 26 a of the hanging wall 26. When an internal thread portion 42 screwed to the male screw portion 27 on the inner peripheral surface 40a of the opening peripheral edge portion 40 is formed a bottomed cylinder inner diameter D ₂ than the outer diameter D ₁ of the beverage reservoir 30 is greater The outer container 41 having a shape and a short cylindrical elastic sleeve member 33 externally fitted to the opening peripheral edge 40 of the outer container 41, and the elastic sleeve member 33 includes the inner container 31 and the opening peripheral edge 40. Since the sealing portion 36 for airtight holding that is sandwiched between the upper ends 40b of the inner sleeve is integrally provided, the elastic sleeve member 33 plays a role of heat insulation and anti-slip, and the sealing portion 36 uses the inner container 31 and the outer container. 41 of the seal that keeps the airtightness of the gap between 41 Can play a split, both, can be reduced the number of parts also serves a dual role in the elastic sleeve member 33 separately. The interior container 31 and the exterior container 41 can be easily separated, and in the assembled and used state, the airtightness of the gap between the interior container 31 and the exterior container 41 can be maintained, and the drink can be reliably kept warm. Even when the inner container 31 and the outer container 41 are made of a transparent resin, if the elastic sleeve member 33 is made of an opaque silicone resin, the male screw part 27 and the female screw part 42 cannot be seen from the outside. Is excellent. It is possible to prevent the interior container 31 and the exterior container 41 from being scratched and to suppress the generation of abnormal noise.

  In addition, since the elastic sleeve members 3 and 33 have the folded piece portion 7 that is folded inward, when the seal portion 6 (the seal portion 36) is compressed and elastically deformed, escape occurs outward in the container. In addition, the airtightness can be maintained by reliably sealing. Further, between the lower end edge portion 11b of the hanging wall 11 and the receiving surface 24 of the outer collar-shaped shoulder portion 8 (between the inner container 31 and the upper end 40b of the opening peripheral end edge portion 40), the seal portion 6 (the seal portion 36). The gap G having a height substantially the same as the thickness dimension of () is secured, and even when the seal portion 6 (the seal portion 36) or the receiving surface 24 gets wet with water, the seal portion 6 (the seal portion 36) It can be securely held without escaping in the Z direction.

DESCRIPTION OF SYMBOLS 1 Interior container 2 Exterior container 3 Elastic sleeve member 3a Lower end surface 3b Upper end surface 3c Inner collar part 5 Fitting recessed part 6 Sealing part 7 Folding piece part 8 Outer collar-shaped shoulder part 9 Elastic small protrusion 10 Beverage accommodating part 11 Drooping wall 11a Inner peripheral surface 11b Lower end edge 15 Female thread-like spiral ridge 17 Small circumferential convex portion 18 Small projection piece 20 Open peripheral edge 20a Outer peripheral surface 24 Receiving surface 25 Male thread-like spiral ridge 26 Hanging wall 26a Outer peripheral surface 27 Male thread portion 30 beverage container 31 inner container 33 elastic sleeve member 36 sealing portion 40 opening peripheral edge portion 40a in the peripheral surface 40b upper end 41 the outer container 42 internally threaded portion D ₁ outer diameter D ₂ the inner diameter

Claims (7)

In a beverage container having a double wall structure with an interior container (1) and an exterior container (2),
A short cylindrical elastic sleeve member (3) fitted to the interior container (1) or the exterior container (2) is provided, and the elastic sleeve member (3) includes the interior container (1) and the exterior container ( 2) A beverage container characterized by integrally having an airtight seal (6) sandwiched between 2). It has a bottomed cylindrical beverage container (10), and a cylindrical hanging wall (11) is formed on the outer peripheral wall of the beverage container (10) and the inner circumferential surface (11a) of the hanging wall (11) An internal container (1) having an internally threaded spiral ridge (15) formed thereon;
A male thread-like spiral ridge (25) is formed on the outer peripheral surface (20a) of the peripheral edge edge (20) of the opening, and the outer diameter of the beverage container (10) is formed. and _{(D 1)} inner diameter than _{(D 2)} is larger set bottomed cylindrical shape of the outer container (2),
A short cylindrical elastic sleeve member (3) fitted on the hanging wall (11) of the interior container (1),
The elastic sleeve member (3) integrally has an airtight holding seal portion (6) sandwiched between the lower end edge portion (11b) of the hanging wall (11) and the outer container (2). A beverage container characterized by It has a bottomed cylindrical beverage container (10), and a cylindrical hanging wall (11) is formed on the outer peripheral wall of the beverage container (10) and the inner circumferential surface (11a) of the hanging wall (11) An interior container (1) in which a plurality of small protrusions (18) are arranged on the virtual spiral line of
A male thread-like spiral ridge (25) is formed on the outer peripheral surface (20a) of the opening peripheral edge (20) to be screwed into the plurality of small protrusions (18), and the outer diameter of the beverage container (10). and _{(D 1)} inner diameter than _{(D 2)} is larger set bottomed cylindrical shape of the outer container (2),
A short cylindrical elastic sleeve member (3) fitted on the hanging wall (11) of the interior container (1),
The elastic sleeve member (3) integrally has an airtight holding seal portion (6) sandwiched between the lower end edge portion (11b) of the hanging wall (11) and the outer container (2). A beverage container characterized by The outer container (2) is provided with an outer collar-shaped shoulder (8) having a seal receiving surface (24), and the lower end surface (3a) of the elastic sleeve member (3) is projected downward. An elastic small ridge (9) is formed,
In the assembled and used state, the elastic sleeve member (3) is such that the sealing portion (6) has the receiving surface of the lower end edge portion (11b) of the hanging wall (11) and the outer flange-shaped shoulder portion (8). The beverage container according to claim 2 or 3, wherein the beverage container is clamped by (24) and is in pressure contact with the receiving surface (24) while being elastically deformed. The elastic sleeve member (3) has an inner flange portion (3c) in the vicinity of the upper end edge, and an upward protruding circumferential small convex portion (17) is formed on the upper end surface (3b). Is formed with a fitting recess (5) at the base end of the hanging wall (11),
In the assembled and used state, the elastic sleeve member (3) is configured such that the inner collar portion (3c) is fitted into the fitting concave portion (5) and the small convex portion (17) is elastically deformed. The beverage container according to claim 3 or 4, which is in pressure contact with the container (1). It has a bottomed cylindrical beverage container (30), and a cylindrical hanging wall (26) is formed on the outer circumferential wall of the beverage container (30), and on the outer circumferential surface (26a) of the hanging wall (26). An internal container (31) in which a male screw part (27) is formed;
An internal thread portion (42) that is screwed into the external thread portion (27) is formed on the inner peripheral surface (40a) of the opening peripheral edge portion (40), and the outer diameter (D ₁ ) of the beverage storage portion (30). And a bottomed cylindrical outer container (41) having a large inner diameter (D ₂ ),
A short cylindrical elastic sleeve member (33) externally fitted to the opening peripheral edge (40) of the outer container (41),
The elastic sleeve member (33) integrally has an airtight holding seal portion (36) clamped between the inner container (31) and the upper end (40b) of the opening peripheral edge portion (40). A beverage container characterized by being made. The beverage container according to claim 1, 2, 3, or 6, wherein the elastic sleeve member (3) (33) has a folded piece portion (7) folded inward.

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