JP2019077457A - Double container - Google Patents

Abstract

To provide a double container not being thick near a flange, and preventing intrusion of beverage from a join part.SOLUTION: A double container comprises an outer container 1 and an inner container 2. The inner container 2 is inserted into the outer container 1 to form a heat insulation space 3. The double container has a lower engaging structure 30 and an upper engaging structure 40. The lower engaging structure 30 is formed by fitting an inner container lower engaging part 33 provided at a lower part of the inner container 2 to an outer container lower engaging part 31 provided at a lower part of the outer container 1. The upper engaging structure 40 is formed by fitting an inner container upper engaging part 42 provided at an upper part of the inner container 2 to an outer container upper engaging part 41 provided at an upper part of the outer container 1. The outer container upper engaging part 41 is provided on an inner wall of the outer container 1. The upper engaging structure 40 functions following the engaging function of the lower engaging structure 30.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a double container comprising an outer container and an inner container, in which a heat insulation space is formed.

  Containers may contain hot and cold beverages.

  Preferably, the hot beverage is maintained at a high temperature. Cold beverages are preferably maintained at low temperatures. Also, when holding a container with a hot beverage, it may be hot and uncomfortable. Also, when holding a container with a cold beverage, it may be cold and uncomfortable.

  From the viewpoint of heat retention of contents and suppression of heat transfer to the handle, a double container in which an adiabatic space is formed is used.

  A double container in which an inner container made of resin is stacked on an outer container made of resin is general (for example, Patent Document 1).

Patent No. 4612313

  When stacking the inner container on the outer container, a joint structure is important so that the inner container does not shake in the outer container. Patent Document 1 discloses an example in which a flange having a semicircular cross section of the inner container is fitted to a flange having a curled cross section of the outer container and an example in which the flange of the inner container is hooked on the upper end of the upper body of the outer container. It is done.

  In both examples, the flange of the inner container is configured to be outside and cover the junction so that there is no ingress of beverage from the junction.

  As a result, the thickness near the flange of the double container becomes thick. There is a restriction on the design of the container (in other words, the appearance looks dull), and the touch of the lips when drinking the beverage is bad, and it may be difficult to drink.

  An object of the present invention is to solve the above-mentioned problems, and an object of the present invention is to provide a double container in which the thickness of the vicinity of the flange does not become thick and there is no intrusion of the beverage from the joint.

  To achieve the above object, the double container of the present invention comprises an outer container and an inner container inserted into the outer container. An adiabatic space is formed between the outer container and the inner container. The double container is provided at a lower fitting structure in which a lower container fitting portion provided at the lower portion of the inner container is fitted to an outer container lower fitting portion provided at the lower portion of the outer container, And an upper fitting structure for fitting the inner container upper fitting portion provided on the outer container upper fitting portion to the outer container upper fitting portion. The outer container upper fitting portion is provided on the inner wall of the outer container.

  Thereby, the flange of the outer container is not covered by the inner container and is located outside. As a result, the thickness near the flange of the double container does not become thick.

  In the above invention, preferably, the upper fitting structure is formed to function along with the fitting function of the lower fitting structure.

  Thereby, the upper fitting structure is securely fitted. As a result, there is no ingress of beverage from the upper mating structure.

  In the above invention, preferably, the lower fitting structure is formed such that the outer container lower fitting portion pushes down the inner container lower fitting portion, and the upper fitting structure is the inner container upper fitting portion The outer container upper fitting portion is formed to be pressed down.

  In the above invention, preferably, the lower fitting structure is formed such that the outer container lower fitting portion pushes up the inner container lower fitting portion, and the upper fitting structure is formed by the inner container upper fitting portion The outer container upper fitting portion is formed to be pushed up.

  In the above invention, preferably, the lower fitting structure is formed such that the outer container lower fitting portion pushes down the inner container lower fitting portion, and the upper fitting structure is the inner container upper fitting portion The outer container upper fitting portion is formed to be pushed up.

  According to the double container of the present invention, the thickness near the flange does not become thick. As a result, there is no restriction on the design of the container (in other words, the stylish appearance can be maintained), and the lip feels good when drinking a beverage, making it easy to drink.

  Also, according to the double container of the present invention, there is no intrusion of the beverage from the joint.

Schematic configuration (first embodiment) Operation explanatory drawing (1st Embodiment) Schematic configuration (second embodiment) Operation explanatory drawing (2nd embodiment) Schematic configuration (third embodiment) Operation explanatory drawing (3rd Embodiment) Operation explanatory view (fourth embodiment) Before translucent container fitting Translucent container after fitting

~ Common configuration ~
First to third embodiments according to the present invention will be described based on FIGS. The common configuration according to the first to third embodiments will be described.

  The outer container 1 includes a bottom 11, a body 12, and a flange 13. The inner container 2 includes a bottom 21, a body 22, and a flange 23.

  The body portions 12 and 22 are formed in a substantially inverted truncated cone shape as a schematic shape. That is, the diameter is reduced from the flanges 13 and 23 toward the bottoms 11 and 21.

  The flanges 13 and 23 protrude from the top of the body 12 and 22 in the substantially horizontal direction on the outer periphery.

  The inner container 2 is inserted into the outer container 1, and an adiabatic space 3 is formed between the outer container 1 and the inner container 2.

  The dual container comprises a lower mating structure 30 and an upper mating structure 40. With the mating function of the lower mating structure 30, the upper mating structure 40 functions.

  Hereinafter, detailed configurations and operations of the lower fitting structure 30 and the upper fitting structure 40 will be described.

First Embodiment
FIG. 1 is a schematic configuration view according to the first embodiment. FIG. 2 is an operation explanatory view according to the first embodiment.

  The lower fitting structure 30 of the first embodiment will be described.

  A projection 31 is provided at the lower part of the outer container body 12 so as to project to the inside of the container. For example, the projections 31 are formed at the intersections of the substantially horizontal steps and the reverse tapers which increase in diameter from the substantially horizontal steps toward the bottom portion 11.

  At the lower portion of the inner container body portion 22, a reverse taper 33 is formed which is expanded in diameter from the substantially horizontal step 32 and the substantially horizontal step 32 toward the bottom portion 21.

  The distance (R1) from the central axis of the outer container 1 to the projection 31 is shorter than the distance (R2) from the central axis of the inner container 2 to the lower end of the reverse taper 33.

  The distance (R1) from the central axis of the outer container 1 to the projection 31 is substantially the same as the distance (R3) from the central axis of the inner container 2 to the upper end of the reverse taper 33.

  Therefore, when the inner container 2 is inserted into the outer container 1, the bottom 21 of the inner container 2 abuts against the projection 31 and the insertion is inhibited, but when it is further pushed in, the projection 31 moves along the reverse taper 33 It is locked to the substantially horizontal step 32.

  The protrusion 31 constitutes an outer container lower fitting portion provided at the lower portion of the outer container 1, and the substantially horizontal step 32 and the reverse taper 33 constitute an inner container lower fitting portion provided at the lower portion of the inner container 2.

  That is, the lower fitting structure 30 functions by fitting the cylinder formed by the reverse taper 33 of the inner container 2 into the opening formed by the protrusion 31 of the outer container 1.

  The upper fitting structure 40 of the first embodiment will be described.

  A taper 41 is formed at the upper portion of the outer container body 12 and on the inner wall, with a diameter decreasing from the top to the bottom. The taper 41 may be part of a substantially inverted truncated cone shape of the body 12. The slope of the taper 41 may be steeper than the average slope of the body 12.

  The distance (R4) from the central axis of the inner container 1 to the outer edge lower end 42 of the inner container flange portion 23 is shorter than the distance (R5) from the central axis of the outer container 2 to the upper end of the taper 41.

  The distance (R4) from the central axis of the inner container 1 to the outer edge lower end 42 of the inner container flange portion 23 is longer than the distance (R6) from the central axis of the outer container 2 to the lower end of the taper 41.

  Therefore, when the inner container 2 is inserted into the outer container 1, the lower end 42 of the flange portion outer edge of the inner container 2 can be inserted without being blocked, but when it is further inserted, the flange outer edge lower end 42 is tapered 41 , And is locked in the middle of the taper 41.

  The taper 41 constitutes an outer container upper fitting portion provided in the upper portion of the outer container 1, and the flange portion outer edge lower end 42 constitutes an inner container upper fitting portion provided in the upper portion of the inner container 2.

  That is, the upper fitting structure 40 functions by fitting the ring formed by the lower end 42 of the flange portion of the inner container 2 into the opening formed by the taper 41 of the outer container 1.

  Next, interlocking between the lower fitting structure 30 and the upper fitting structure 40 in the first embodiment will be described.

  In the lower fitting structure 30, the projection 31 tries to push the reverse taper 33 in the horizontal direction. As a result, the inner container 2 is pushed down with respect to the outer container 1.

  Naturally, the lower end 42 of the flange portion outer edge of the inner container 2 is also pushed down that the entire inner container 2 is pushed down. The flange portion outer edge lower end 42 moves from top to bottom along the taper 41. In other words, the flange portion outer edge lower end 42 pushes down the taper 41. As a result, the lower end 42 of the flange portion outer edge is tightened to the taper 41 and fitted more securely.

  That is, the upper fitting structure 40 functions in conjunction with the fitting function of the lower fitting structure 30.

Second Embodiment
FIG. 3 is a schematic configuration diagram according to the second embodiment. FIG. 4 is an operation explanatory view according to the second embodiment.

  The lower fitting structure 30 of the second embodiment will be described.

  A projection 36 is provided at the lower part of the outer container body 12 so as to project to the inside of the container. For example, the projections 36 are formed at the intersections of the substantially horizontal steps and the reverse tapers which increase in diameter from the substantially horizontal steps toward the bottom portion 11.

  At the lower portion of the inner container body portion 22, a reverse taper 37 is formed, which increases in diameter from the substantially horizontal step and the substantially horizontal step toward the bottom portion 21.

  On the other hand, the outer container bottom portion 11 has an upwardly convex shape having a large curvature as compared with the inner container bottom portion 22.

  The distance (R11) from the central axis of the outer container 1 to the projection 36 is shorter than the distance (R12) from the central axis of the inner container 2 to the lower end of the reverse taper 37.

  The distance (R11) from the central axis of the outer container 1 to the projection 36 is longer than the distance (R13) from the central axis of the inner container 2 to the upper end of the reverse taper 37.

  Therefore, when the inner container 2 is inserted into the outer container 1, the bottom 21 of the inner container 2 abuts against the projection 36 and the insertion is inhibited, but the projection 36 moves along the reverse taper 37 when it is further pushed. However, during the movement, the top of the outer container bottom 11 abuts on the inner container bottom 22, and the projection 36 is locked on the reverse taper 37.

  The projection 36 and the outer container bottom portion 11 constitute an outer container lower fitting portion provided at the lower portion of the outer container 1, and the reverse taper 37 and the inner container bottom portion 22 are provided at the lower portion of the inner container 2. Make up the department.

  That is, the lower fitting structure is obtained by fitting the cylinder formed by the reverse taper 37 of the inner container 2 in the opening formed by the projection 36 of the outer container 1 and taking the reaction force at the top of the outer container bottom 11 functioning as a plate spring. 30 works.

  The upper fitting structure 40 of the second embodiment will be described.

  A reverse taper 46 is formed at the upper portion of the outer container body 12 and on the inner wall, and the diameter increases from the top to the bottom. Further, continuously with the reverse taper 46, a taper 47 whose diameter decreases from top to bottom is formed. The taper 47 may be part of a substantially inverted truncated cone shape of the body 12.

  The distance (R14) from the central axis of the inner container 1 to the outer edge upper end 48 of the inner container flange portion 23 is longer than the distance (R15) from the central axis of the outer container 2 to the upper end of the reverse taper 46.

  The distance (R14) from the central axis of the inner container 1 to the outer edge lower end 42 of the inner container flange portion 23 is shorter than the distance (R16) from the central axis of the outer container 2 to the lower end of the reverse taper 46.

  Therefore, when the inner container 2 is inserted into the outer container 1, the flange portion outer edge lower end 48 of the inner container 2 moves along the reverse taper 46 against the reverse taper 46 and is locked in the middle of the reverse taper 46.

  The reverse taper 46 constitutes an outer container upper fitting portion provided at the upper portion of the outer container 1, and the flange portion outer edge upper end 48 constitutes an inner container upper fitting portion provided at the upper portion of the inner container 2.

  That is, the upper fitting structure 40 functions by fitting the ring formed by the flange portion outer edge upper end 48 of the inner container 2 into the opening formed by the reverse taper 46 of the outer container 1.

  Next, interlocking between the lower fitting structure 30 and the upper fitting structure 40 in the second embodiment will be described.

  In the lower fitting structure 30, the outer container bottom portion 11 pushes up the inner container bottom portion 22 while the projection 36 is locked on the reverse taper 37 and takes a reaction force. As a result, the inner container 2 is pushed up with respect to the outer container 1.

  The fact that the entire inner container 2 is pushed up naturally also pushes up the flange portion outer edge upper end 48 of the inner container 2. The flange outer edge upper end 48 moves from bottom to top along the reverse taper 46. In other words, the reverse taper 46 pushes the flange portion outer edge upper end 48 down. Thereby, the flange portion outer edge upper end 48 is tightened to the reverse taper 46 and fitted more securely.

  That is, the upper fitting structure 40 functions in conjunction with the fitting function of the lower fitting structure 30.

Third Embodiment
FIG. 5 is a schematic block diagram according to the third embodiment. FIG. 6 is an operation explanatory view according to the third embodiment.

  The lower fitting structure 30 of the third embodiment will be described. It is similar to the lower fitting structure 30 of the first embodiment.

  A projection 31 is provided at the lower part of the outer container body 12 so as to project to the inside of the container. For example, the projections 31 are formed at the intersections of the substantially horizontal steps and the reverse tapers which increase in diameter from the substantially horizontal steps toward the bottom portion 11.

  At the lower portion of the inner container body portion 22, a reverse taper 33 is formed which is expanded in diameter from the substantially horizontal step 32 and the substantially horizontal step 32 toward the bottom portion 21.

  The distance (R1) from the central axis of the outer container 1 to the projection 31 is shorter than the distance (R2) from the central axis of the inner container 2 to the lower end of the reverse taper 33.

  The distance (R1) from the central axis of the outer container 1 to the projection 31 is substantially the same as the distance (R3) from the central axis of the inner container 2 to the upper end of the reverse taper 33.

  Therefore, when the inner container 2 is inserted into the outer container 1, the bottom 21 of the inner container 2 abuts against the projection 31 and the insertion is inhibited, but when it is further pushed in, the projection 31 moves along the reverse taper 33 It is locked to the substantially horizontal step 32.

  The protrusion 31 constitutes an outer container lower fitting portion provided at the lower portion of the outer container 1, and the substantially horizontal step 32 and the reverse taper 33 constitute an inner container lower fitting portion provided at the lower portion of the inner container 2.

  That is, the lower fitting structure 30 functions by fitting the cylinder formed by the reverse taper 33 of the inner container 2 into the opening formed by the protrusion 31 of the outer container 1.

  The upper fitting structure 40 of the third embodiment will be described. It is similar to the upper fitting structure 40 of the second embodiment.

  A reverse taper 46 is formed at the upper portion of the outer container body 12 and on the inner wall, and the diameter increases from the top to the bottom. Further, continuously with the reverse taper 46, a taper 47 whose diameter decreases from top to bottom is formed. The taper 47 may be part of a substantially inverted truncated cone shape of the body 12.

  The distance (R14) from the central axis of the inner container 1 to the outer edge upper end 48 of the inner container flange portion 23 is longer than the distance (R15) from the central axis of the outer container 2 to the upper end of the reverse taper 46.

  The distance (R14) from the central axis of the inner container 1 to the outer edge lower end 42 of the inner container flange portion 23 is shorter than the distance (R16) from the central axis of the outer container 2 to the lower end of the reverse taper 46.

  Therefore, when the inner container 2 is inserted into the outer container 1, the flange portion outer edge lower end 48 of the inner container 2 moves along the reverse taper 46 against the reverse taper 46 and is locked in the middle of the reverse taper 46.

  The reverse taper 46 constitutes an outer container upper fitting portion provided at the upper portion of the outer container 1, and the flange portion outer edge upper end 48 constitutes an inner container upper fitting portion provided at the upper portion of the inner container 2.

  That is, the upper fitting structure 40 functions by fitting the ring formed by the flange portion outer edge upper end 48 of the inner container 2 into the opening formed by the reverse taper 46 of the outer container 1.

  Next, interlocking between the lower fitting structure 30 and the upper fitting structure 40 in the third embodiment will be described.

  In the third embodiment, the distance (L2) between the lower fitting structure 30 and the upper fitting structure 40 in the inner container 2 (that is, the vertical distance between the upper end of the reverse taper 33 and the upper end 48 of the flange portion outer edge) is 1 is longer than the distance between the lower fitting structure 30 and the upper fitting structure 40 (i.e., the vertical distance between the protrusion 31 and the reverse taper 46 locking position) (L1). Thereby, the trunk | drum 22 of the inner container 2 functions as a leaf | plate spring.

  In the lower fitting structure 30, the projection 31 tries to push the reverse taper 33 in the horizontal direction. As a result, the inner container 2 is pushed down with respect to the outer container 1.

  On the other hand, the body portion 22 of the inner container 2 functions as a leaf spring while the lower fitting structure 30 takes a reaction force, whereby the flange portion outer edge upper end 48 of the inner container 2 is pushed up. The flange outer edge upper end 48 moves from bottom to top along the reverse taper 46. In other words, the reverse taper 46 pushes the flange portion outer edge upper end 48 down. Thereby, the flange portion outer edge upper end 48 is tightened to the reverse taper 46 and fitted more securely.

  That is, the upper fitting structure 40 functions in conjunction with the fitting function of the lower fitting structure 30.

~ Fourth Embodiment ~
FIG. 7 is an operation explanatory view according to the fourth embodiment.

  The lower fitting structure 30 of the fourth embodiment will be described. It is similar to the lower fitting structure 30 of the first embodiment.

  A projection 31 is provided at the lower part of the outer container body 12 so as to project to the inside of the container. For example, the projections 31 are formed at the intersections of the substantially horizontal steps and the reverse tapers which increase in diameter from the substantially horizontal steps toward the bottom portion 11.

  At the lower portion of the inner container body portion 22, a reverse taper 33 is formed which is expanded in diameter from the substantially horizontal step 32 and the substantially horizontal step 32 toward the bottom portion 21.

  The distance (R1) from the central axis of the outer container 1 to the projection 31 is shorter than the distance (R2) from the central axis of the inner container 2 to the lower end of the reverse taper 33.

  The distance (R1) from the central axis of the outer container 1 to the projection 31 is substantially the same as the distance (R3) from the central axis of the inner container 2 to the upper end of the reverse taper 33.

  Therefore, when the inner container 2 is inserted into the outer container 1, the bottom 21 of the inner container 2 abuts against the projection 31 and the insertion is inhibited, but when it is further pushed in, the projection 31 moves along the reverse taper 33 It is locked to the substantially horizontal step 32.

  The protrusion 31 constitutes an outer container lower fitting portion provided at the lower portion of the outer container 1, and the substantially horizontal step 32 and the reverse taper 33 constitute an inner container lower fitting portion provided at the lower portion of the inner container 2.

  That is, the lower fitting structure 30 functions by fitting the cylinder formed by the reverse taper 33 of the inner container 2 into the opening formed by the protrusion 31 of the outer container 1.

  The upper fitting structure 40 of the fourth embodiment will be described.

  A substantially horizontal step 43 is formed on the upper portion of the outer container trunk portion 12. The lower surface 44 of the inner container flange portion 23 is locked on the upper surface (inner wall side) of the substantially horizontal step 43.

  Furthermore, you may use together the upper fitting structure 40 (The opening which the taper 41 of the outer container 1 forms, the ring which the flange part outer-edge lower end 42 of the inner container 2 forms) of 1st Embodiment.

  The taper 41 and the substantially horizontal step 43 constitute an outer container upper fitting portion provided at the upper portion of the outer container 1, and the flange portion outer edge lower end 42 and the flange portion lower surface 44 are inner containers provided at the upper portion of the inner container 2. Construct the upper fitting part.

  Next, interlocking between the lower fitting structure 30 and the upper fitting structure 40 in the fourth embodiment will be described.

  In the lower fitting structure 30, the projection 31 tries to push the reverse taper 33 in the horizontal direction. As a result, the inner container 2 is pushed down with respect to the outer container 1.

  Naturally, the entire inner container 2 is pushed down, so that the flange portion 23 of the inner container 2 is also pushed down. The lower surface 44 of the inner container flange portion presses the upper surface of the substantially horizontal step 43. Furthermore, the flange portion outer edge lower end 42 is tightened to the taper 41 and fitted more securely.

  That is, the upper fitting structure 40 functions in conjunction with the fitting function of the lower fitting structure 30.

~effect~
In the first to fourth embodiments, the outer container upper fitting portions 41, 43, 46 are provided on the inner wall of the outer container 1, and the inner container upper fitting portions 42, 44, 48 are flanges 23 of the inner container 2. Provided in

  That is, the flange 23 of the inner container 2 is contained in the outer container 1, and the flange 13 of the outer container 1 is not covered. Only the flange 13 of the outer container 1 is located on the outside.

  As a result, the thickness near the flange of the double container does not become thick. As a result, there is no restriction on the design of the container (in other words, the stylish appearance can be maintained), and the lip feels good when drinking a beverage, making it easy to drink.

  Further, the upper fitting structure 40 is securely fitted, and even if the flange 23 of the inner container 2 is not on the outer side, there is no intrusion of the beverage from the upper fitting structure 40.

  By the way, when the heat insulation effect is not required, each of the outer container 1 and the inner container 2 can be used as its own container. In particular, the design of the outer container 1 is considered, and the design can be maintained.

~ Remarks ~
In the double container in the prior art, the flange of the inner container is outside so as to cover the joint so that the beverage does not enter from the joint.

  Therefore, there was no idea of including the flange 23 of the inner container 2 in the outer container 1.

  The inventors of the present application realized that the flange 23 of the inner container 2 is included in the outer container 1 by more reliably functioning the upper fitting structure 40. Through the above thinking process, the present invention is completed.

Therefore, the present invention is not limited to the above embodiment, and various modifications can be made within the scope of the above technical idea.
~ Other ~

  Although the material etc. of the outer container 1 and the inner container 2 are not particularly limited, for example, transparent or translucent resin may be used.

  FIG. 8 is a view showing the double container before fitting, and FIG. 9 is a view showing the double container after fitting.

  For example, the logo or character design of a beverage provider may be attached to the inner container 2. By making the outer container 1 visible, it is possible to produce an appearance different from that in the case where a logo or the like is attached to the outer container 1. For example, it looks different depending on the amount of light. This improves the designability.

  Further, by pouring a logo or the like on the inner container 2, there is no risk of the logo being peeled off by friction or the like. This can maintain the design.

DESCRIPTION OF SYMBOLS 1 outer container 2 inner container 3 heat insulation space 11 outer container bottom portion 12 outer container body portion 13 outer container flange portion 21 inner container bottom portion 22 inner container body portion 23 inner container flange portion 30 lower fitting structure 31 protrusion 32 substantially horizontal step 33 reverse Taper 36 approximately horizontal step 37 reverse taper 40 upper fitting structure 41 taper 42 flange lower edge lower end 43 substantially horizontal step 44 flange lower surface 46 reverse taper 47 taper 48 flange upper edge upper end

Claims (5)

A double container comprising an outer container and an inner container inserted into the outer container, wherein an insulating space is formed,
A lower fitting structure in which an inner container lower fitting portion provided in the lower portion of the inner container is fitted to an outer container lower fitting portion provided in the lower portion of the outer container;
An upper fitting structure in which an inner container upper fitting portion provided at the upper portion of the inner container is fitted to an outer container upper fitting portion provided at the upper portion of the outer container;
Equipped with
The outer container upper fitting portion is provided on an inner wall of the outer container. The double container according to claim 1, wherein the upper fitting structure is formed to function along with the fitting function of the lower fitting structure. The lower fitting structure is formed such that the outer container lower fitting portion pushes down the inner container lower fitting portion.
The double container according to claim 1 or 2, wherein the upper fitting structure is formed such that the inner container upper fitting portion pushes down the outer container upper fitting portion. The lower fitting structure is formed such that the outer container lower fitting portion pushes up the inner container lower fitting portion.
The double container according to claim 1 or 2, wherein the upper fitting structure is formed such that the inner container upper fitting portion pushes up the outer container upper fitting portion. The lower fitting structure is formed such that the outer container lower fitting portion pushes down the inner container lower fitting portion.
The double container according to claim 1 or 2, wherein the upper fitting structure is formed such that the inner container upper fitting portion pushes up the outer container upper fitting portion.