JP6135747B2 - Vacuum double container for soup insulation - Google Patents

Description

  The present invention relates to a vacuum double container for keeping a soup warm.

  In the past, a “vacuum double heat-retaining container for containing juice, soup, miso soup, etc.” has been disclosed (for example, see Japanese Patent Application Laid-Open No. 2001-231893).

JP 2001-231893 A

  An object of the present invention is to provide a vacuum double container for keeping a soup that can efficiently scoop soup even when the amount of soup becomes small.

The vacuum double container for soup heat retention which concerns on 1 aspect of this invention is provided with an inner cylinder part, an outer cylinder part, and a vacuum space. The inner cylinder part has a bottom wall and a side wall. The outer cylinder portion has a bottom wall and is joined to the opening end portion of the inner cylinder portion at the opening end portion. The vacuum space is formed between the outer cylinder part and the inner cylinder part. And the bottom wall of an inner cylinder part has the center part which swells spherically toward the opening side, and a corner part of a concave arc. Further, the side wall of the inner cylinder portion has a reverse truncated conical cylinder shape and extends from the outer edge of the corner of the bottom wall of the inner cylinder portion. Furthermore, the diameter of the spherical surface at the center is larger than the diameter of the arc at the corner. In addition, the cross-sectional shape of an outer cylinder part may be circular shape, and polygonal shape may be sufficient as it.

  For this reason, in this soup heat-retaining vacuum double container, when the soup becomes small, the soup necessarily flows to the corner. Here, when the vacuum double container for keeping the soup is tilted, the soup becomes easier to gather in the corner. Therefore, with this soup heat-retaining vacuum double container, the soup can be efficiently scooped even when the amount of soup becomes small.

  In addition, in the above-mentioned vacuum double container for heat retention, it is preferable that an inner cylinder part is formed from the raw material which is more excellent in corrosion resistance than the formation material of an outer cylinder part. In this case, the forming material of the inner wall portion is, for example, SUS316L, and the forming material of the outer wall portion is, for example, SUS304.

It is an external appearance perspective view of the vacuum double container for soup heat retention which concerns on embodiment of this invention. It is a half sectional view of the vacuum double container for soup heat retention concerning an embodiment of the invention. It is an external appearance perspective view of the container main body and inner cover of the vacuum double container for soup heat retention which concerns on embodiment of this invention. It is a half sectional view at the time of stacking accommodation of the vacuum double container for soup heat retention concerning modification (C).

The soup heat-retaining vacuum double container 100 according to the embodiment of the present invention is mainly composed of a container main body 110 and a lid main body 120 as shown in FIGS.
Hereinafter, the container body 110 and the lid body 120 will be described in detail.

<Constituent elements of vacuum double container for soup insulation>
(1) Container Main Body The container main body 110 is a so-called vacuum double container, and is mainly formed of a bottomed inner cylinder 111 and a bottomed outer cylinder 112 as shown in FIG. Specifically, after the opening end of the inner cylinder 111 and the opening end of the outer cylinder 112 are joined so that the space SP is formed between the inner cylinder 111 and the outer cylinder 112, the space SP is vacuumed. The container main body 110 is formed by being in a state (see FIG. 2). In the present embodiment, in the soup heat-retaining vacuum double container 100, when only a plurality of container main bodies 110 are stacked, one outer cylinder 112 is a male threaded portion 112c (described later) or inner cylinder of another outer cylinder 112. It is designed so as not to come into contact with the 111 step portion 111d (described later).

  As shown in FIG. 2, the inner cylinder 111 is mainly formed of an inner cylinder side wall 111a, an inner cylinder bottom wall 111b, a tip wall 111c, and a step 111d. The inner cylinder 111 is made of a steel material such as SUS316L, SUS316, or SUS304L. As the steel material forming the inner cylinder 111, a steel material that is more excellent in corrosion resistance than the steel material forming the outer cylinder 112 is employed. The inner cylinder side wall 111a has a reverse truncated conical cylinder shape (inverted truncated cone cylinder shape). The taper angle θ1 of the inner cylinder side wall 111a is preferably 4 ° or more and 8 ° or less. Further, the opening diameter on the tip side of the inner cylinder side wall 111a is preferably 70 mm or more and 100 mm or less, more preferably 70 mm or more and 90 mm or less, and further preferably 70 mm or more and 80 mm or less. If the opening diameter is this size, the soup can be easily scooped out with a spoon and the heat retaining power of the container body 110 can be kept, and the scent of the soup spreads when the lid body 120 is detached. This is because it is easy to put in human hands and easy to clean. In the inner cylinder bottom wall 111b, the central portion CT is raised in a spherical shape toward the opening side, and the corner CR has a concave arc shape. The diameter of the spherical surface of the central portion CT is made larger than the diameter of the arc of the corner portion CR. In addition, it is preferable that the diameter of the arc of the corner CR is larger than the arc diameter of the tip of the rake portion of the folding spoon SN accommodated in the lid main body 120. This is because when the soup becomes small, it can be easily scooped out with the spoon SN. Further, the diameter of the arc of the corner CR is preferably 10 mm or more and 20 mm or less, and the diameter of the spherical surface of the central part CT is preferably 90 mm or more and 110 mm or less. The tip wall portion 111c has a substantially cylindrical shape, and the opening diameter thereof is larger than the opening diameter of the inner cylinder side wall portion 111a. Moreover, this front-end | tip wall part 111c is joined to the inner cylinder side wall part 111a via the step part 111d. The step portion 111d is a portion having a reverse truncated conical cylinder shape (inverted truncated cone shape), and as described above, is located between the inner cylinder side wall portion 111a and the tip wall portion 111c, and the inner cylinder side wall portion 111a. And the tip wall 111c are joined. The stepped portion 111d is positioned so as to come into contact with a packing (not shown) of an inner lid 121 (described later) of the lid body 120 when the lid body 120 is attached to the container body 110.

  As shown in FIG. 2, the outer cylinder 112 is mainly formed of an outer cylinder side wall portion 112a, an outer cylinder bottom wall portion 112b, and a male screw portion 112c. The outer cylinder 112 is made of a steel material that is inferior in corrosion resistance to the steel material forming the inner cylinder 111. For example, when the inner cylinder 111 is made of SUS306L, the outer cylinder 112 is made of a steel material such as SUS306, SUS304L, SUS304, SUS430, or the like. For example, when the inner cylinder 111 is made of SUS306, the outer cylinder 112 is made of a steel material such as SUS304L, SUS304, or SUS430. For example, when the inner cylinder 111 is made of SUS304L, the outer cylinder 112 is made of a steel material such as SUS304 or SUS430. For example, when the inner cylinder 111 is made of SUS304, the outer cylinder 112 is made of a steel material such as SUS430. The outer cylinder side wall part 112a is exhibiting a reverse truncated cone cylinder shape (inverted truncated cone cylinder shape) similarly to the inner cylinder side wall part 111a. The taper angle θ2 of the outer cylinder side wall portion 112a is larger than the taper angle θ1 of the inner cylinder side wall portion 111a as shown in FIG. The taper angle θ2 of the outer cylinder side wall 112a is preferably 7 ° or more and 18 ° or less. This is because the user can easily hold the container body 110. The outer cylinder bottom wall portion 112b has a substantially disk shape. The male threaded portion 112c is formed on the upper inner side of the outer cylinder side wall portion 112a and can be screwed into a female threaded portion 121c (described later) formed on the inner lid side wall portion 121b.

(2) Lid Main Body The lid main body 120 is mainly formed of an inner lid 121 and an outer lid 122 as shown in FIGS. 1 and 2.

  As shown in FIG. 2, the inner lid 121 is mainly formed from an inner lid top wall portion 121a, an inner lid side wall portion 121b, a female screw portion 121c, and a heat insulating material accommodating portion 121d. The inner lid top wall 121a has a bowl shape. When the outer lid 122 is put on the inner lid 121, a space SS is generated between the inner lid top wall 121 a and the outer lid 122. In addition, in the soup heat-retaining vacuum double container 100 according to the present embodiment, this space SS is used as a storage space for the folding spoon SN. The inner lid side wall 121b has a substantially cylindrical shape. As shown in FIG. 2, a female screw part 121c is formed on the inner peripheral surface of the inner lid side wall part 121b. As described above, the male screw portion 112c of the container main body 110 is screwed into the female screw portion 121c. The heat insulating material accommodating portion 121d has a bottomed cylindrical shape, and is provided inside the inner lid side wall portion 121b in a plan view. In addition, as shown in FIG. 2, the heat insulating material HS is filled in the heat insulating material accommodating portion 121d. In addition, as shown in FIG. 2, in the heat insulating material accommodating portion 121 d, the heat insulating material HS is positioned below the upper end of the container main body 110 when the inner lid 121 is attached to the container main body 110. Extends downwards.

  The outer lid 122 is a member that covers the upper portion of the inner lid 121, and is mainly formed of an outer lid top wall portion 122a and an outer lid cylindrical wall portion 122b, as shown in FIGS. The outer lid top wall 122a has a substantially disk shape. The outer lid top wall 122a is formed with a recess RC that substantially matches the shape of the outer cylinder bottom wall 112b. When two or more soup warming vacuum double containers 100 are carried, the bottom of another soup warming vacuum double container 100 is accommodated in the recess RC. The outer lid cylindrical wall portion 122b has a substantially cylindrical shape.

<Characteristics of vacuum double container for soup insulation>
(1)
In the soup heat-retaining vacuum double container 100 according to the present embodiment, the diameter of the outer cylinder 112 decreases as it goes toward the bottom. For this reason, in this soup heat-retaining vacuum double container 100, the outer diameter on the bottom side of the outer cylinder 112 can be kept relatively small while the inner diameter on the tip side of the inner cylinder 111 is made relatively large. Therefore, a woman, a child, or the like with a small hand can grip the soup warming vacuum double container 100 relatively easily by selecting the bottom side of the outer cylinder 112 and gripping the soup warming vacuum double container 100. it can. Moreover, in this soup heat-retaining vacuum double container 100, the diameter of the inner cylinder 111 increases toward the opening. For this reason, this soup heat-retaining vacuum double container 100 can easily soup the soup with the spoon SN. Therefore, the soup heat-retaining vacuum double container 100 can scoop the soup with the spoon SN and can be easily grasped even by a woman or a child with a small hand.

(2)
In the soup heat-retaining vacuum double container 100 according to the present embodiment, the inner cylinder 111 is formed of a steel material such as SUS316L. For this reason, in this soup heat-retaining vacuum double container, the inner cylinder 111 is not easily rusted even if soup containing a large amount of salt is put therein. Further, when the inner cylinder 111 is deep-drawn by press processing, it is easier to process than SUS304, and an annealing process becomes unnecessary. For this reason, the manufacturing efficiency of the inner cylinder 111 improves, and the manufacturing cost of the inner cylinder 111 can be reduced. Further, in this case, since the skin roughness (orange peel) of the inner cylinder 111 is reduced, the state of the inner cylinder 111 after SC processing is also improved.

(3)
In the soup heat-retaining vacuum double container 100 according to the present embodiment, the central portion CT of the inner cylinder bottom wall portion 111b swells in a spherical shape toward the opening side, and the corner CR of the inner cylinder bottom wall portion 111b is It has a concave arc shape. And the diameter of the spherical surface of the central portion CT is larger than the diameter of the arc of the corner CR. For this reason, in this soup heat-retaining vacuum double container 100, when the soup becomes small, the soup necessarily flows into the corner CR. Here, if the soup heat-retaining vacuum double container 100 is tilted, the soup becomes easier to gather in the corner. Therefore, in this soup heat-retaining vacuum double container 100, the soup can be efficiently scooped even when the amount of soup becomes small.

(4)
In the soup heat-retaining vacuum double container 100 according to the present embodiment, when only a plurality of container main bodies 110 are stacked, one outer cylinder 112 is a male threaded part 112c of another outer cylinder 112 and a step part 111d of the inner cylinder 111. Designed not to touch. For this reason, this soup heat-retaining vacuum double container 100 prevents the male threaded portion 112c and the stepped portion 111d from being deformed and losing its function each time a plurality of container main bodies 110 are stacked and accommodated. it can.

(5)
In the soup heat-retaining vacuum double container 100 according to the present embodiment, as shown in FIG. 3, if the lid body 120 is removed from the container body 110 and the outer lid 122 is removed from the inner lid 121, the inner lid 121 is removed. Can be used as a tray for the spoon SN to which the soup is attached, so that the table or the like is not soiled. In such a case, the outer lid 122 may be turned over and the outer lid 122 may be used as a tray instead of the inner lid 121.

(6)
In the soup heat-retaining vacuum double container 100 according to the present embodiment, the heat insulating material HS is positioned below the upper end of the container body 110 in a state where the inner lid 121 is attached to the container body 110. The heat insulating material accommodating portion 121d extends downward. For this reason, this vacuum double container 100 for soup heat retention can maintain the heat retention power highly.

<Modification>
(A)
In the soup heat-retaining vacuum double container 100 according to the previous embodiment, the shape of the inner cylinder side wall 111a of the inner cylinder 111 is a reverse truncated conical cylinder shape (inverted truncated cone cylinder shape). The shape of the inner cylinder side wall 111a may be a cylindrical shape, or may be a shape in which a reverse truncated conical cylinder shape and a cylindrical shape are combined. In the latter case, it is preferable that the shape of the joining position of the inverted truncated conical cylindrical body and the cylindrical body is a smooth shape such as an arc or the like (sectional view).

(B)
In the soup heat-retaining vacuum double container 100 according to the previous embodiment, the taper angle θ2 of the outer cylinder side wall portion 112a is larger than the taper angle θ1 of the inner cylinder side wall portion 111a. The angle θ2 may be the same as the taper angle θ1 of the inner cylinder side wall 111a, or may be larger than the taper angle θ1 of the inner cylinder side wall 111a.

(C)
Although not particularly mentioned in the previous embodiment, as shown in FIG. 4, an overhanging portion 112 e may be formed on the outer cylinder 112 </ b> A. In addition, this overhang | projection part 112e is projected toward the outer side rather than the outer cylinder side wall part 112a in 112 A of outer cylinders. As a result, a step is generated in the outer cylinder 112A. For this reason, when the user holds the soup heat-retaining vacuum double container 100A, the step is caught in the user's hand. Therefore, the vacuum double container 100A for keeping the soup is not slippery and easy to hold. In addition, even if the outer cylinder 112A is recessed due to an impact such as a drop, the probability of contact with the inner cylinder 111 by the overhanging portion 112e is reduced, and the risk of impairing the heat retaining power can be reduced.

  In addition, in FIG. 4, about the component which has a different structure from the component of the vacuum double container 100 for soup heat retention which concerns on previous embodiment, about the vacuum double container 100 for soup heat retention which concerns on previous embodiment. The letter “A” is appended after the reference numerals given to the components.

(D)
In the soup-warming vacuum double container 100 according to the previous embodiment, the lid main body 120 has a structure capable of accommodating the folding spoon SN, but the lid main body 120 may be a lid having a normal structure. Good. That is, the inner lid 121 may be used as the lid body. In such a case, the inner lid top wall 121a is preferably shaped like the outer lid ceiling wall 122a.

100,100A Soup warming vacuum double container 110,110A Container body 111 Inner cylinder (inner cylinder part)
111b Inner cylinder bottom wall (bottom wall of the inner cylinder)
112, 112A Outer cylinder (outer cylinder part)
CR Corner CT Center SP Vacuum space

Claims (1)

An inner cylinder having a bottom wall and side walls ;
A bottomed outer cylinder part joined to the opening end part of the inner cylinder part at the opening end part;
A vacuum space formed between the outer cylinder part and the inner cylinder part,
The bottom wall of the inner cylinder part has a central part that rises spherically toward the opening side, and a concave arcuate corner,
The side wall of the inner cylinder part has a reverse truncated conical cylinder shape, and extends from the outer edge of the corner of the bottom wall of the inner cylinder part,
The vacuum double container for soup heat retention whose diameter of the spherical surface at the center is larger than the diameter of the arc at the corner.

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