JP6408930B2 - Thermal insulation container - Google Patents

Description

  The present invention relates to a heat retaining container for retaining warm food and drink (rice cooked rice, miso soup, etc.).

  The present applicant has proposed a heat insulation container (hereinafter referred to as a conventional example) disclosed in Japanese Patent Application Laid-Open No. 2013-43644 as a portable heat insulation container for keeping warm food and drinks (rice cooked rice, miso soup, etc.). .

  This conventional example includes a first container having a lid screwed into an upper opening, and a second container fitted to the first container with the lid and screwed to the first container. And the second container has a heat insulating structure.

  Therefore, the conventional example is excellent in heat retention.

JP 2013-43644 A

  As a result of further research and development on the above-described heat insulation container composed of the first container, the lid, and the second container, the present inventor has developed an innovative heat insulation container that exhibits an unprecedented effect.

  The gist of the present invention will be described with reference to the accompanying drawings.

  A first container 1 having a lid 2 screwed into an upper opening 1a, and a second container 3 fitted to the first container 1 with the lid 2 and screwed to the first container 1. In the heat retaining container, the screwed structure between the first container 1 and the lid body 2 and the screwed structure between the first container 1 and the second container 3 are set in a reverse screw relationship. The present invention relates to a heat insulating container.

  Further, in the heat retaining container according to claim 1, the screwed structure between the first container 1 and the lid body 2 includes a screw part 6 provided on an inner surface upper portion of the first container 1, and the screw part 6. And a screw portion 7 provided on the outer surface of the fitting portion 2a of the lid body 2 that is screwed into the first container 1, and the screwing structure between the first container 1 and the second container 3 is as follows. A screw portion 8 provided at a position above the outer surface of the first container 1 and a screw portion 9 screwed with the screw portion 8 and provided at a position above the inner surface of the second container 3. It is related to the heat insulation container.

  Moreover, the heat retention container of any one of Claim 1, 2 WHEREIN: The said cover body 2 and said 2nd container 3 are equipped with the heat insulation structure, It concerns on the heat retention container characterized by the above-mentioned.

  Since the present invention is configured as described above, it is an epoch-making thermal insulation container that exhibits unprecedented effects such as unprecedented usage and extremely good usability.

It is a disassembled perspective view which shows a present Example. It is sectional drawing explaining the principal part of a present Example. It is operation | movement explanatory drawing of the principal part of a present Example. It is operation | movement explanatory drawing of the principal part of a present Example. It is operation | movement explanatory drawing of the principal part of a present Example. It is operation | movement explanatory drawing of the principal part of a present Example.

  An embodiment of the present invention which is considered to be suitable will be briefly described with reference to the drawings showing the operation of the present invention.

  For example, when the lid body 2 is screwed to the first container 1 and then the first container 1 and the second container 3 are screwed together, the first container 1 is stored in the second container 3.

  In the present invention, the screwed structure between the first container 1 and the lid 2 and the screwed structure between the first container 1 and the second container 3 are set in a reverse screw relationship.

  From this configuration, the rotation is reversed between the case where the first container 1 and the lid body 2 are screwed together and the case where the first container 1 and the second container 3 are screwed together.

  Therefore, for example, when the first container 1, the lid 2 and the second container 3 are integrated, the first container 1, the second container 3, and the lid 2 are rotated in the tightening direction with respect to the first container 1. The screw connection between the container 1 and the lid body 2 is not released, and the screw connection between the first container 1 and the second container 3 is released, so that the first container 1 is screwed into the cover body 2. The first container 1 is detached from the second container 3. Thereafter, when the lid 2 is rotated in the loosening direction with the first container 1, the screwing of the first container 1 and the lid 3 is released, and the first container 1 and the lid 2 are separated. The

  On the other hand, when the first container 1, the lid body 2 and the second container 3 are integrated, the first container body is rotated when the lid body 2 is rotated in the loosening direction with respect to the first container body 1. The screw connection between the first container 1 and the second container 3 is not released, and the screw connection between the first container 1 and the lid 2 is released, so that the first container 1 and the second container 3 remain screwed. The lid 2 is detached from the first container 1. This state can be eaten in a good heat-retaining state in which the warm food or drink contained in the first container 1 is stored in the second container 3.

  Thereafter, when it is desired to separate the first container 1 and the second container 3, the lid body 2 is screwed onto the first container 1 with the second container 3, and the lid body 2 is further rotated in the tightening direction. When moved, the first container 1 and the second container 3 are unscrewed, and the first container 1 with the lid 2 and the second container 3 can be separated.

  Therefore, the state in which the first container 1, the cover body 2 and the second container 3 are completely separated by only selecting the direction in which the cover body 2 is rotated, and the state in which only the cover body 2 is removed (the first container body). 1 and the second container 3 are screwed together), and an unprecedented usage is possible, which is very convenient.

  Specific embodiments of the present invention will be described with reference to the drawings.

  In the present embodiment, a first container 1 having a lid 2 screwed to the upper opening 1a and a second container 1 fitted to the first container 1 with the lid 2 and screwed to the first container 1 are used. It is a heat insulation container which consists of the container 3, Comprising: The screwing structure of the 1st container 1 and the cover body 2 and the screwing structure of the 1st container 1 and the 2nd container 3 were set to the relationship of the reverse screw. Is.

  In addition, although a present Example is comprised as a portable type heat retention container (for example, soup pot) which accommodates food and drink in the 1st container 1, if it is a use which exhibits the characteristic of a present Example, it can employ | adopt suitably. Is.

  Hereinafter, each component according to the present embodiment will be described in detail.

  The first container 1 is formed of an appropriate synthetic resin member (polypropylene) as shown in FIGS. 1 and 2, and has a top opening 1a and a bottomed cylinder having a predetermined capacity (about 300 ml). It is provided in the shape.

  Further, a screw part 6 made of a spiral ridge is provided at a position above the inner surface of the first container 1, and this screw part 6 constitutes a screwed structure with a screw part 7 provided on the lid 2 described later. Is.

  Further, a screw part 8 made of a spiral ridge is provided at a position above the outer surface of the first container 1, and this screw part 8 constitutes a screwed structure with a screw part 9 provided in the second container 3 to be described later. To do.

  The lid 2 is formed of an appropriate synthetic resin member (polypropylene) through a space S on an outer body 2 'formed of an appropriate metal member (stainless steel) as shown in FIGS. It is a hollow double structure provided with the inner body 2 ″.

  An appropriate heat insulating material 10 made of synthetic resin (foamed polystyrene) is disposed in the hollow portion of the lid body 2 to provide a heat insulating structure.

  The lid 2 (inner body 2 ″) is provided with a fitting portion 2a that is fitted into the upper opening 1a of the first container 1 in a protruding state.

  On the outer surface of the fitting portion 2a, there is provided a screw portion 7 formed of a spiral protrusion that is screwed with the screw portion 6 described above.

  Therefore, the lid 2 is screwed to the first container 1 via the screwing structure, and the upper opening 1a of the first container 1 is closed by the lid 2.

  Further, the lid 2 is provided with a diameter larger than that of the first container 1 in the fitting portion 2 a, so that when the lid 2 is screwed to the first container 1, the peripheral end portion 2 b of the lid 2 is the first container 1. It is in a protruding state at an outward position from the outer surface.

  The peripheral end 2b of the lid 2 is a portion where the upper opening edge of the second container 3 abuts and abuts when the first container 1 and the second container 3 to which the lid 2 is screwed are connected. An annular packing 11 (silicon) is disposed at a portion where the upper opening edge abuts, so that the second container 3 and the lid body 2 provide a hermetic housing state with respect to the first container 1.

  The second container 3 has an inner cylinder 3 ″ disposed in the outer cylinder 3 ′ via a space S, and the space S between the outer cylinder 3 ′ and the inner cylinder 3 ″ is defined as a vacuum heat insulating space S. It is a bottomed cylindrical vacuum insulated double container.

  Specifically, the outer cylinder 3 ′ and the inner cylinder 3 ″ according to the present embodiment are metal (stainless steel) bottomed cylindrical bodies as shown in FIGS. 1 and 2, and the inner cylinder 3 ″. Is smaller in diameter and lower in height than the outer cylinder 3 ', and the respective openings are set to have substantially the same diameter.

  Therefore, the inner cylinder 3 ″ is arranged in the outer cylinder 3 ′ and the openings are joined to each other, so that a space S is formed between the outer cylinder 3 ′ and the inner cylinder 3 ″. The material constituting the outer cylinder 3 ′ and the inner cylinder 3 ″ may be other metals such as stainless steel, and any material can be used as long as it exhibits the characteristics of this embodiment.

  A recess (not shown) is provided at the center of the bottom of the outer cylinder 3 ′, and a deaeration hole ′ for vacuum sealing is provided at the center of the recess.

  A method for manufacturing a vacuum insulated double container using the outer cylinder 3 'and the inner cylinder 3' 'will be described.

  First, when the inner cylinder 3 ″ is arranged in the outer cylinder 3 ′ and the openings are joined to each other by welding, a space S is formed between the inner surface of the outer cylinder 3 ′ and the outer surface of the inner cylinder 3 ″. The This space part S becomes a vacuum heat insulation space part S by vacuum processing later.

  Subsequently, the space S between the outer cylinder 3 ′ and the inner cylinder 3 ″ is evacuated and the deaeration holes ′ are vacuum-sealed.

  Place in a vacuum superheated furnace. At this time, it is arranged in an inverted state, and in this state, a brazing material is disposed around a deaeration hole provided at the bottom of the outer cylinder 3 ′, and a sealing plate is placed on the brazing material.

In this state, the temperature in the vacuum heating furnace is set to about 900 ° C. or higher, gradually deaerated to a high vacuum state (10 ⁻³ to 10 ⁻⁵ Torr), and the temperature is further increased to about 1050 ° C.

  At this time, the brazing material is melted and the outer cylinder 3 ′ and the sealing plate are integrated to close the deaeration hole, and the space S between the outer cylinder 3 ′ and the inner cylinder 3 ″ is sealed in a vacuum state. Thus, the vacuum heat insulating space S is formed, and then the temperature is lowered to room temperature to cool the vacuum sealing work.

  Further, a screw portion 9 made of a spiral ridge that is screwed with the screw portion 8 of the first container 1 is provided at a position above the inner surface of the second container 3 (inner cylinder 3 ″).

  Accordingly, the second container 3 is screwed to the first container 1 via the screwing structure, and the first container 1 is put into a fitted and accommodated state by the second container 3.

  In the present embodiment, as described above, the screw structure of the first container 1 and the lid body 2 and the screw structure of the first container 1 and the second container 3 are set in a reverse screw relationship. Yes. Specifically, the screw structure of the first container 1 and the lid body 2 is a regular screw, and the screw structure of the first container 1 and the second container 3 is a reverse screw.

  From this configuration, when the first container 1 and the lid body 2 are screwed together and when the first container 1 and the second container 3 are screwed together, the respective connections are made by rotating in the opposite directions. Done.

  That is, when the first container 1 and the lid body 2 are screwed together, the first container 1 is held by rotating the lid body 2 in the tightening direction (the direction of arrow a in FIG. 3) with the first container 1. Next, when the first container 1 and the second container 3 are screwed together, the lid body 2 is loosened with respect to the first container 1 by holding the second container 3 (arrow in FIG. 4). The first container 1 and the second container 3 are screwed together by rotating in the (b direction), and the first container 1 is in a hermetically sealed state by the lid body 2 and the second container 3.

  Further, in this embodiment, in the state where the first container 1, the lid 2 and the second container 3 are integrated, the second container 3 is held and the lid 2 is tightened with respect to the first container 1 (arrow in FIG. 5). c), the first container 1 and the lid 2 are not released from the screw connection, and the first container 2 and the second container 3 are released from the screw connection. The first container 1 is detached from the second container 3 while the container 1 is screwed. Thereafter, when the lid 2 is rotated in the loosening direction with the first container 1, the screwing of the first container 1 and the lid 2 is released, and the first container 1 and the lid 2 are separated. The

  On the other hand, in a state where the first container 1, the lid 2 and the second container 3 are integrated, the second container 3 is held and the lid 2 is loosened with respect to the first container 1 (in the direction of arrow d in FIG. 6). When the first container 1 and the second container 3 are rotated, the first container 1 and the second container 3 are not unscrewed, and the first container 1 and the lid 2 are unscrewed. The lid 2 is detached from the first container 1 with the screw 2 being screwed. In this state, it is possible to eat warm food and drink placed in the first container 1 in a good heat-retaining state in which the first container 1 is fitted and stored by the second container 3.

  Thereafter, when the first container 1 and the second container 3 are desired to be separated, the lid 2 is screwed to the first container 1 with the second container 3, and the lid 2 is further rotated in the tightening direction. When moved, the first container 1 and the second container 3 are unscrewed, and the first container 1 and the second container 3 can be separated.

  Since the present embodiment is configured as described above, the first container 1, the cover body 2, and the second container 3 are completely separated from each other only by selecting the direction in which the cover body 2 is rotated. Thus, a state in which only 2 is removed (a state in which the first container 1 and the second container 3 are screwed together) is obtained, and an unprecedented usage is possible, which is very convenient.

  Further, in this embodiment, since the screw structure of the first container 1 and the lid body 2 is a regular screw and the screw structure of the first container 1 and the second container 3 is a reverse screw, the direction of rotation is the same. Good operation can be performed without hesitation.

  In the present embodiment, the screwed structure of the first container 1 and the lid 2 is such that the first container 1 is screwed with the screw part 6 provided in the upper part of the inner surface of the first container 1 and the screw part 6. And the screw part 7 provided on the outer surface of the fitting part 2a of the lid body 2 to be fitted into the lid 2. The screw structure of the first container 1 and the second container 3 is provided at a position above the outer surface of the first container 1. Since the screw portion 8 and the screw portion 9 which is screwed with the screw portion 8 and is provided at a position above the inner surface of the second container 3 are configured, the above-described operational effects are surely exhibited.

  In the present embodiment, the lid body 2 and the second container 3 have a heat insulating structure, so that the structure has extremely good heat retention.

  The present invention is not limited to the present embodiment, and the specific configuration of each component can be designed as appropriate.

DESCRIPTION OF SYMBOLS 1 1st container 1a Upper opening part 2 Cover body 2a Insertion part 3 Second container 6 Screw part 7 Screw part 8 Screw part 9 Screw part

Claims (3)

  A heat retaining container comprising a first container having a lid screwed to an upper opening, and a second container fitted to the first container with the lid and screwed to the first container, A heat retaining container, wherein the screwed structure of the first container and the lid and the screwed structure of the first container and the second container are set in a reverse screw relationship.   2. The heat retaining container according to claim 1, wherein a screwing structure between the first container and the lid is a screw part provided at a position above an inner surface of the first container, and the first container is screwed with the screw part. A screw portion provided on an outer surface of the fitting portion of the lid body fitted into the screw body, and a screwed structure of the first container and the second container is provided at a position above the outer surface of the first container. And a screw part that is screwed into the screw part and provided at a position above the inner surface of the second container.   The heat insulating container according to any one of claims 1 and 2, wherein the lid body and the second container have a heat insulating structure.

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