JP5837958B2 - Metal vacuum insulated container - Google Patents

Description

  The present invention relates to a stackable metal vacuum insulated container.

  Conventionally, when a plurality of containers are stacked, there is a problem that a scratch is generated at a portion where the containers contact each other. Further, when the container is made of metal, it was particularly easy for scratches to occur. For this problem, in Patent Document 1 below, when a plurality of convex pieces are provided on the inner peripheral surface of the cup, and the upper cup is stacked so as to fit in the inner space of the lower cup, A cup whose bottom surface is supported by the convex piece of the lower cup is disclosed. However, since the bottom surface of the upper cup and the convex piece of the lower cup are in contact with each other, there is a problem in that a scratch is easily generated at the contact portion. In addition, by providing convex pieces on the inner surface of the cup, there is a problem that the appearance of the cup is impaired and the inside of the cup is difficult to clean.

  Patent Document 2 below discloses a cup having an engaging protrusion formed so that the bottom portion rises upward. When a plurality of cups are stacked, the engaging protrusions of the upper and lower cups are engaged. Thus, there is disclosed a cup in which the outer wall of the upper cup and the outer wall of the lower cup are not in contact with each other. However, since the engaging projections of the upper and lower cups are in contact with each other, there is a problem that the contact portion is liable to be scratched. Further, the basic shape of the cup is greatly changed by providing the engaging protrusion, and the appearance as the cup is impaired. Furthermore, there are also problems in use such as it is difficult to store ice for cooling the beverage, and the cup is difficult to wash due to its complicated shape.

Utility Model Registration No. 3183842 Japanese Patent No. 5299670

  Therefore, an object of the present invention is to prevent scratches due to contact between containers when a plurality of containers are stacked while maintaining a basic shape as a container without providing protrusions or the like inside the container.

The metal vacuum heat insulation container according to claim 1 is a metal vacuum heat insulation container in which the upper container fits in the inner space of the lower container and can be stacked, and when the elastic member is provided at the bottom of the container and stacked the inner bottom surface of the bottom surface and the lower container of the elastic member of the upper container is in contact on the circumference, the inner side of the inner bottom surface, characterized that you have formed the bottom surface recess of concave downward.

  When the upper container is stacked in the internal space of the lower container, the gap between the outer surface of the upper container and the inner surface of the lower container is determined by the upper vacuum container. The gap between the outer surface of the elastic member and the inner surface of the lower container is larger.

According to the invention of claim 1, there is no protrusion on the inner surface of the container, and the container has a clean appearance. Moreover, since metal containers do not contact when stacking, generation | occurrence | production of a contact sound can be prevented. Further, when used as a single product, the impact when placed on a table or the like can be reduced. Further, the appearance of the welded portion of the bottom portion of the container can be hidden by the elastic member. In addition, it is possible to prevent the inner container bottom surface portion from being deformed unevenly during vacuum processing.

  According to invention of Claim 2, since the side surfaces of a container do not contact when a some container is stacked, it can prevent that a container side surface is damaged, and can reduce generation | occurrence | production of a contact sound.

It is a perspective view of the metal vacuum heat insulation container which shows Example 1 of this invention. It is a longitudinal cross-sectional view of a metal vacuum heat insulation container same as the above. It is a longitudinal cross-sectional view of the state which piled up two metal vacuum heat insulation containers same as the above. It is an expanded sectional view of the junction part of an inner container and an outer container same as the above. It is a front view of a metal vacuum heat insulation container same as the above. It is a top view of a metal vacuum heat insulation container same as the above. It is a bottom view of a metal vacuum heat insulation container same as the above.

  Preferred embodiments of the present invention will be described with reference to the accompanying drawings. The embodiments described below do not limit the contents of the present invention described in the claims. In addition, all of the configurations described below are not necessarily essential requirements of the present invention.

  FIGS. 1-7 has shown the metal vacuum insulation container 1 which concerns on Example 1 of this invention, and the said metal vacuum insulation container 1 is the container main body 2 of the metal vacuum insulation structure of the magnitude | size which can be held with one hand, The elastic member 3 is fitted to the bottom portion of the container body 2. The container body 2 and the elastic member 3 are rotating bodies based on the central axis C in the vertical direction (vertical direction) shown in FIG. Therefore, the metal vacuum insulation container 1 combining the container body 2 and the elastic member 3 is also a rotating body with the central axis C as a reference, and the front view, the back view, and the side view all have the same shape. .

  The container body 2 has a double structure in which a bottomed cylindrical inner container 4 with an open top is housed in a bottomed cylindrical outer container 5 with an open top, and each upper opening is joined by welding. Have. The inner container 4 and the outer container 5 are both made of stainless steel (for example, SUS304).

  The inner container 4 has a one-part structure having a cylindrical inner container cylinder portion 6 whose opening area increases upward and a disk-shaped inner container bottom surface portion 7, and an inner container opening portion having a large opening at the top. 8 is formed.

  The upper part of the inner container cylinder 6 is curved outward as it goes upward, the upper end 9 of the inner container, which is the upper end of the inner container cylinder 6, protrudes in the horizontal direction, and the inner container opening 8 is a wrapper. It has a shape.

  A horizontal bottom surface portion 10, which is a horizontal bottom surface portion, is formed on the outer peripheral portion of the inner container bottom surface portion 7, and a concave bottom surface recess 11 is formed concentrically on the inside thereof. The bottom surface concave portion 11 increases the rigidity of the inner container bottom surface portion 7 and prevents the inner container bottom surface portion 7 from being deformed unevenly during vacuum processing described later. The radius of the bottom recess 11 is about 2/3 of the radius of the inner container bottom 7. Further, when the metal vacuum heat insulating containers 1 are stacked, the upper metal vacuum heat insulating container 1 does not interfere with the bottom surface recess 11 of the lower metal vacuum heat insulating container 1.

  The outer container 5 is composed of a cylindrical outer container cylinder portion 12 that is open at the top and bottom and has an opening area that increases upward, and a shallow cylindrical outer container bottom portion 13 that is joined to the lower portion of the outer container cylinder portion 12. A two-part structure is formed, and an outer container opening 14 having a large opening is formed at the top. In addition, a narrow vertical portion 16 having a narrow vertical width and a vertical width is formed at the upper end portion of the outer container 5.

  A small-diameter cylindrical portion 17 having a small diameter for fitting the elastic member 3 is formed in the lower portion of the outer container cylindrical portion 12. The small diameter cylindrical portion 17 has the same diameter at the top and bottom, and an inclined portion 18 is formed on the upper side of the small diameter cylindrical portion 17 so that the diameter increases upward.

The outer container bottom portion 13 has a bottomed cylindrical shape with an open top, and has a two-step configuration on the side surface. The upper upper portion 19 is formed to have a smaller diameter than the lower lower portion 20, and the upper portion 19 is fitted inside the outer container cylinder portion 12 (small diameter cylinder portion 17) . Between the upper stage part 19 and the lower stage part 20, the receiving part 22 which the outer container lower end part 21 which is the lower end part of the outer container cylinder part 12 contacts is formed, and the outer container bottom part 13 is connected to the outer container cylinder part 12 ( After fitting into the small diameter cylindrical portion 17) , the outer container lower end portion 21 and the receiving portion 22 are joined by welding. Moreover, the bottom corner | angular part 23 which is a part which continues to the bottom face from the side surface of the outer container bottom part 13 becomes the outwardly convex R shape. In this way, the outer container bottom portion 13 has a stronger shape by entering the inside of the outer container cylinder portion 12.

  The outer container bottom portion 24 which is the bottom surface of the outer container bottom portion 13 is formed to be inclined upward in the center direction, and the outer container bottom portion 24 has concentric concave portions formed in three upper and lower stages. Yes. A small-diameter concave portion 25 that is a concave portion formed in the central portion of the outer container bottom portion 24 is formed with a small hole-like exhaust hole 26. The exhaust hole 26 communicates with a gap between the inner container 4 and the outer container 5, and after the gap is exhausted through the exhaust hole 26, the inner container 4 is sealed with a vacuum sealing material 27. A vacuum heat insulating layer 28 is formed in the gap between the outer container 5 and the outer container 5. As the vacuum sealing material 27, for example, a metal brazing material or a glass brazing material made of an alloy of Sn or Sn and Ag, Cu, Ni, Bi, or Zn is used.

  On the outside of the small-diameter concave portion 25, a medium-diameter concave portion 29 that is a concave portion larger in diameter than the small-diameter concave portion 25 is formed. The medium-diameter concave portion 29 increases the rigidity of the outer container bottom surface portion 24 and prevents the vacuum sealing material 27 from flowing out during vacuum processing.

  A large-diameter recess 30 that is a recess larger in diameter than the intermediate-diameter recess 29 is formed outside the intermediate-diameter recess 29. The large-diameter recess 30 is provided with a protective plate 31 that protects the vacuum sealing material 27 from an external impact or the like. The protective plate 31 is bonded with an adhesive having heat resistance and water resistance.

A getter 32 that adsorbs gas generated from the vacuum heat insulating layer 28 is disposed on the surface of the large-diameter concave portion 30 on the vacuum heat insulating layer 28 side. Note that the getter 32 may be disposed at any location in the vacuum heat insulating layer 28 as long as the getter 32 is not positioned to block the exhaust hole 26.

  The protection plate 31 has a disk shape whose diameter is larger than that of the medium-diameter recess 29 and smaller than that of the large-diameter recess 30. The protective plate 31 is made of stainless steel made of the same material as the outer container bottom 13 and is bonded to the large-diameter recess 30 so as to completely close the small-diameter recess 25 and the medium-diameter recess 29. Thereby, even if the metal vacuum heat insulating container 1 is washed with water, the vacuum sealing material 27 does not come into contact with water, and the deterioration of the vacuum sealing material 27 due to water can be prevented.

  Here, the joining of the inner container 4 and the outer container 5 will be described in detail. The inner container 4 is stored in the outer container 5 from the outer container opening 14, and the lower surface of the inner container upper end portion 9 of the inner container 4 is the outer container. 5 is brought into contact with the upper end surface 15 of the outer container, which is the upper end surface of the plate 5, and the contact surface is joined by welding. After joining the inner container 4 and the outer container 5, as shown in FIG. 4, the inner container upper end surface 34, which is the upper end surface of the inner container 4, and the narrow vertical portion 16 are flush with each other. The presence of the narrow vertical portion 16 stabilizes the mouth dimensions and facilitates welding.

  2, the inner container 4 and the outer container 5 are in contact with only the inner container upper end portion 9 and the outer container upper end face 15, and the other portions are not in contact with each other. And in the state which joined the inner container 4 and the outer container 5, the inner container cylinder part 6 and the outer container cylinder part 12 are arrange | positioned substantially in parallel, and when the several metal vacuum heat insulation container 1 is stacked, it is made of upper metal The outer container cylinder part 12 of the vacuum heat insulating container 1 and the inner container cylinder part 6 of the lower metal vacuum heat insulating container 1 are not in contact with each other.

  The elastic member 3 has a bottomed cylindrical shape with an open top, and has a one-part structure including an elastic member side wall portion 35 that is a side wall and an elastic member bottom surface portion 36 that is a bottom surface portion. An elastic member bottom hole 37 is formed in the elastic member bottom surface portion 36. The elastic member 3 is formed of a synthetic rubber such as silicone rubber having elasticity and stretchability.

On the upper portion of the elastic member side wall portion 35, a side wall convex portion 33 is formed which contacts the small diameter cylindrical portion 17 and protrudes inward. Since the side wall convex portion 33 is fitted between the inclined portion 18 and the lower step portion 20 , the elastic member 3 can be firmly fitted to the container body 2. A side wall portion outer surface 39 that is an outer surface of the elastic member side wall portion 35 is inclined outwardly upward. Therefore, the thickness of the elastic member side wall portion 35 is increased upward. Further, the elastic member upper end surface 40 that is the upper end surface of the elastic member side wall portion 35 is inclined upward toward the outside, and comes into contact with the inclined portion 18 of the outer container 5. The upper corner portion 41 formed by the elastic member upper end surface 40 and the side wall portion outer surface 39 has an R shape in order to make it difficult for a user's hand or the like to be caught. Further, when the upper corner portion 41 has an R shape, a soft feel can be given when touched. Furthermore, since the outer diameter of the elastic member side wall portion 35 is smaller than the outer diameter of the outer container 5, the elastic member side wall portion 35 does not protrude outward from the outer container cylinder portion 12. Further, the bottom corner portion 23 can be used as an under portion to further strengthen the fitting.

  The elastic member lower surface 42, which is the lower surface of the elastic member bottom surface portion 36, is a horizontal surface because the metal vacuum heat insulating container 1 is placed on the table or the like. On the other hand, the elastic member upper surface 43 that is the upper surface of the elastic member bottom surface portion 36 is inclined upward toward the elastic member bottom hole 37 side and comes into contact with the outer container bottom surface portion 24. Yes.

  The elastic member bottom hole 37 is formed so as to have a smaller diameter upward, and the upper diameter is larger than the diameter of the large-diameter recess 30 formed in the outer container bottom 13.

  The elastic member bottom corner portion 44 formed between the elastic member side wall portion 35 and the elastic member bottom surface portion 36 of the elastic member 3 has an R shape on both the inside and the outside. The inside of the elastic member bottom corner portion 44 can be prevented from coming off by using the bottom corner portion 23 as an under portion.

  Here, the state in which the plurality of metal vacuum heat insulating containers 1 are stacked will be described in detail with reference to FIG. The relationship between the angle α between the inner container inner surface 46 that is the inner surface of the inner container cylinder 6 and the horizontal plane, and the angle β between the outer container outer surface 45 that is the outer surface of the outer container cylinder 12 and the horizontal plane is α <β. It has become. Here, when a plurality of metal vacuum insulation containers 1 are stacked, the distance between the outer container outer surface 45 of the upper metal vacuum insulation container 1 and the inner container inner surface 46 of the lower metal vacuum insulation container 1 3, the distance at the inner container opening 8 portion of the lower metal vacuum insulation container 1 is A, and the distance at the slightly upper portion of the elastic member 3 of the upper metal vacuum insulation container 1 is as shown in FIG. Assuming B, the distance A is larger than the distance B. That is, when the elastic member bottom corner portion 44 is correctly stacked so as not to be inclined to the horizontal bottom surface portion 10, the distance A is larger than the distance B, and therefore the inner container opening 8 of the lower metal vacuum heat insulating container 1. It can be ensured that the parts are arranged without contact, and the metal parts of the upper and lower metal vacuum insulation containers 1 do not come into contact with each other, and the outer container outer surface 45 and the inner container inner surface 46 can be prevented from being damaged.

  Further, the upper metal vacuum insulation container 1 is stacked so that the elastic member lower surface 42 is in contact with the horizontal bottom surface part 10 of the lower metal vacuum insulation container 1, but the elastic member lower surface 42 and the horizontal bottom surface part 10 are Since it is formed horizontally, a plurality of metal vacuum heat insulating containers 1 can be stacked without tilting. Further, since only the elastic member 3 of the upper metal vacuum insulation container 1 is in contact with the lower metal vacuum insulation container 1, the bottom surface portion 7 of the inner container of the metal vacuum insulation container 1 is stacked. Can be prevented from being damaged. Moreover, the generation of contact sound can be prevented. In addition, as shown in FIG. 7, the elastic member 3 may be provided with a knob portion 47 such as a tab to improve detachability.

  Further, as an effect on the embodiment, the elastic member 3 is easily detachable because it is fitted to the container main body 2 due to its elasticity, and the container main body 2 and the elastic member 3 can be cleaned separately. . Further, when the elastic member 3 is damaged, it can be easily replaced.

Thus, in this embodiment, corresponding to claim 1, the metal vacuum insulating container 1 in which the upper container 1 can be fitted and stacked in the internal space of the lower container 1, the elastic member 3 is provided, the bottom surface serving as elastic member lower surface 42 and the inner bottom surface serving as a horizontal bottom portion 10 of the lower container 1 of the upper container 1 of the elastic member 3 when stacked are in contact on the circumference, the horizontal the Rukoto on the inside of the bottom portion 10 are concave bottom recess 11 is formed below, and projections on the container 1 inner surface is not clean look. In addition, when stacked, the metal parts do not contact each other, so that no contact sound is generated, and even when used alone, the impact when placed on a table or the like can be reduced. Furthermore, the outer appearance of the welded portion at the bottom of the container 1 can be hidden by the elastic member 3. Further, it is possible to prevent the inner container bottom surface portion 7 from being deformed unevenly during vacuum processing.

  Thus, in this embodiment, corresponding to claim 2, when the upper container 1 is stacked in the inner space of the lower container 1, the outer container outer surface 45, which is the outer surface of the upper container 1, and the The gap with the inner container inner surface 46 that is the inner surface of the lower container 1 is a side wall 39 that is the outer surface of the elastic member 3 of the upper container 1 and the inner container inner surface 46 that is the inner surface of the lower container. Since the side surfaces of the container 1 do not contact each other when stacked, it is possible to prevent the container side surface from being damaged. Furthermore, the generation of contact sound can be reduced.

  In addition, this invention is not limited to the said Example, A various deformation | transformation implementation is possible within the range of the summary of this invention. For example, in the embodiment, the bottom hole is formed in the bottom surface portion of the elastic member, but the diameter of the bottom hole can be changed as appropriate, and the entire bottom surface of the bottom portion of the outer container is covered with the elastic member without forming the bottom hole. It may be.

1 Metal vacuum insulation container (container)
3 Elastic member 10 Horizontal bottom (inner bottom)
11 Bottom recess 39 Side wall side surface (outer surface of elastic member)
42 Lower surface of elastic member (bottom surface of elastic member)
45 Outer container outer surface (outer surface of container)
46 Inner container inner surface (inner container inner surface)

Claims (2)

A metal vacuum heat insulating container in which the upper container fits and can be stacked in the inner space of the lower container, provided with an elastic member at the bottom of the container, and when stacked, the bottom surface of the elastic member of the upper container and the abut the inner bottom surface of the lower container on the circumference, a metallic vacuum insulating vessel inside of said bottom surface, characterized that you have been formed concave bottom recesses downward.   When the upper container is stacked in the inner space of the lower container, the gap between the outer surface of the upper container and the inner surface of the lower container is the outer surface of the elastic member of the upper container and the lower side. The metal vacuum heat insulating container according to claim 1, wherein the metal vacuum insulating container is larger than a gap between the inner surface of the container.

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