JP2010243015A - Decompression storage container and refrigerator including the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain a decompression storage container capable of suppressing material use amount and maintaining strength, and a refrigerator including the decompression storage container. <P>SOLUTION: The decompression storage container includes: outer peripheral ribs 3 interconnecting portions near centers of respective sides of a quadrangular plane forming a container body 1 of the decompression storage container having a rectangular parallelepiped shape; and a plurality of lattice-shaped ribs 4 provided in portions near the center of a region surrounded by the outer peripheral ribs 3. No ribs are provided outside the region surrounded by the outer peripheral ribs 3 at corners of the quadrangular plane. The refrigerator includes the decompression storage container. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a vacuum storage container and a refrigerator equipped with the same.

  In the case of a storage container to which surface pressure is applied, it is necessary to suppress the stress and the amount of deformation applied to the surface to a certain level or less in order to prevent the storage container from coming into contact with the external structure due to destruction or deformation.

  As a corresponding method, the surface of the storage container is shaped like a sphere or cylinder so that stress and deformation are uniformly approached, and the material strength and wall thickness of the storage container are adjusted to keep those values below the design value. It is common. This configuration is effective when the stored product does not need to take into consideration the shape, such as liquid or gas.

  However, when storing a solid substance on the bottom surface of the storage container, or considering the installation space and the internal volume of the storage container itself, it is desirable to make the storage container into a rectangular box shape. In the case of a storage container having such a flat surface, problems due to stress concentration and an increase in deformation amount are likely to occur, and a reinforcing means for suppressing this is important.

  On the other hand, reinforcement by simply increasing the amount of material used is not preferable from the viewpoint of resource saving and cost reduction.

  Patent Document 1 describes a configuration in which simple orthogonal lattice ribs parallel to the sides of a rectangular plane of a container are provided on the entire surface.

JP 2004-91654 A

  In the configuration described in Patent Document 1, three surfaces of the rectangular plane of the container intersect in the vicinity of the corner portion and reinforce each other. When a surface pressure is applied to this rectangular plane, the displacement at the center of the surface increases.

  However, when the strength is adjusted by providing orthogonal grid-like ribs on the entire plane and changing the grid interval, ribs are provided more than necessary even in areas where the necessity for reinforcement is low, such as the corners of the rectangular plane described above. There is a problem that it will be.

  In addition, simply removing the lattice near the corner may cause stress concentration at the end of the lattice, which may be a cause of failure, and eventually there is a problem that ribs must be provided to the end of the plane. is there.

  That is, there is a problem that the amount of material used increases because the shape of the ribs cannot be optimized.

  In view of the above problems, an object of the present invention is to obtain a decompression storage container capable of suppressing the amount of material used and maintaining strength, and a refrigerator equipped with the same.

  In order to solve the above-mentioned problem, the reduced pressure storage container of the present invention is a region provided with ribs so as to be connected from the center of each side of a rectangular plane forming a rectangular parallelepiped reduced pressure storage container, and surrounded by the ribs. A plurality of grid-like ribs are provided from the center of the square, and no ribs are provided at the corners of the rectangular plane and outside the region surrounded by the ribs.

  In addition, a rib is provided so as to connect each other from the center of the sides of the quadrangular plane that form the rectangular parallelepiped decompression storage container, and is the corner of the quadrangular plane and outside the region surrounded by the rib It is characterized by not providing a rib.

  In addition, a plurality of grid-like ribs are provided from the center of the region surrounded by the ribs.

  In addition, a rib provided so as to connect from the center of the side of the rectangular plane that forms the rectangular parallelepiped decompression storage container, and a connecting means provided on the side to connect the ribs to each other. The ribs are not provided outside the region surrounded by the ribs at the corners of the rectangular plane.

  Further, the refrigerator of the present invention is provided with a rib so as to be connected from the center of each side of a rectangular plane forming a rectangular parallelepiped decompression storage container, and a plurality of grid shapes from the center of the region surrounded by the rib. A reduced-pressure storage container is provided, wherein a rib is provided, and the rib is not provided outside a region surrounded by the rib at a corner of the rectangular plane.

  ADVANTAGE OF THE INVENTION According to this invention, the decompression storage container which can suppress the material usage-amount and can maintain intensity | strength, and a refrigerator provided with the same can be obtained.

  Hereinafter, embodiments will be described with reference to the drawings.

  FIG. 1 is a perspective view of a vacuum storage container showing a first embodiment of the present invention. The present embodiment is an example of a vacuum storage container whose purpose is to evacuate the inside and store the contents hermetically in a low-pressure, low-oxygen state.

  In the actual use, the opening 2 of the rectangular parallelepiped container body 1 is sealed with a door (not shown) to keep the internal low pressure state. The two rectangular planes of the top surface 1a and the bottom surface 1b of the container body 1 have a larger area than the other surfaces. Then, since the dent (deformation amount) due to atmospheric pressure becomes large at the center of the surface and causes cracking, reinforcement is particularly necessary.

  In view of this, an outer peripheral rib 3 is provided that connects the centers of adjacent sides of a rectangular plane (the top surface 1a in FIG. 1). In addition, lattice ribs 4 having four quadrangular shapes are provided in the center of the quadrangular plane. Further, a connecting rib 5 is provided to connect the lattice rib 4 to the vertical direction and the horizontal direction of the square from the apex of the outer peripheral rib 3, that is, from the center of each side of the rectangular plane.

  The outer peripheral rib 3, the lattice-like rib 4, and the connecting rib 5 are provided. The outer peripheral rib 3 is a region outside the outer peripheral rib 3 and a corner of a rectangular plane. Since the strength can be increased by the triangular structure, it is not necessary to add a reinforcing means such as a rib to a portion outside the region surrounded by the outer peripheral rib 3.

  The role of the grid-like ribs 4 is to reinforce the central portion of the top surface 1a that tends to be greatly deformed. Since the connection rib 5 is passed over the vertical and horizontal full width of the top | upper surface 1a, the curvature of the whole surface can be prevented.

  In addition, a rib having the same shape is also provided on the bottom surface 1b of the container body 1 to obtain an equivalent reinforcing effect.

  FIG. 2 shows a simple orthogonal lattice rib 6 that is common to the container body 1 having the same shape as that of the present embodiment, so that the maximum values of stress and deformation are the same as those of the embodiment of FIG. It is a perspective view at the time of comprising. When the total mass of the pressure vessel is compared, the present embodiment is limited to about 90% of the one provided with the simple orthogonal lattice rib 6, and it is possible to save resources and reduce costs by reducing the weight. Yes.

  FIG. 3 is a perspective view of the bottom side of the vacuum storage container showing the second embodiment of the present invention. The storage container of this embodiment is used for a drawer-type storage room such as a vegetable room of a refrigerator. The bottom surface 7 of the vacuum storage container takes a form of being supported by a rail in a floating state without being grounded so as not to cause friction when being drawn out. Therefore, it is the structure where the bottom face 7 receives the load by a stored material. Similar to the first embodiment, the bottom surface 7 is provided with the outer peripheral rib 3, the lattice rib 4, and the connecting rib 5. As a result, it is natural that the bottom surface 7 is not broken, and it is possible to increase the amount of deformation so that the bottom surface 7 and the container external structure do not come into contact with each other. Further, the structure is made possible with less material than when the simple orthogonal lattice rib 6 is provided.

  FIG. 4 shows an example of another rib shape corresponding to the present invention. FIG. 4A is an example in which the connecting rib 5 is reinforced by double. In (B), the outer peripheral rib is formed on a line connecting points deviated by 10% of the side length from the midpoint of the quadrangular side, and a rib serving as a connecting means for connecting rib end points on the same side is provided. It is an example. (C) is an example in which the two examples are combined.

  Since the optimum rib structure differs depending on the container shape and accessories, the shape of the rib in the present embodiment is not limited to the above example. That is, an outer peripheral rib for forming a triangular shape is provided at the corner of the quadrilateral plane, no rib is provided in the triangular flat portion, a lattice rib for preventing deformation at the center of the flat surface, and points on the sides of the quadrilateral plane It corresponds to all the storage containers having a reinforcing rib structure composed of connecting ribs that connect the grid-like ribs and reinforce them in two vertical and horizontal directions on a rectangular plane.

  As described above, by optimizing the shape of the reinforcing rib provided on the rectangular plane to which the surface pressure of the rectangular parallelepiped storage container is applied, the stress and the deformation amount are less than the allowable values at all parts, so that the minimum necessary structure is obtained. Is achieved.

The perspective view of the decompression storage container in Example 1 of this invention. The perspective view which replaced the reinforcement rib of the decompression storage container in Example 1 of this invention with the simple orthogonal lattice rib. The perspective view of the bottom face side of the decompression storage container in Example 2 of this invention. The example of the rib shape in Example 3 of this invention.

DESCRIPTION OF SYMBOLS 1 Container main body 1a Top surface 1b, 7 Bottom face 2 Opening 3 Outer periphery rib 4 Grid-like rib 5 Connection rib 6 Simple orthogonal lattice rib

Claims (5)

  Ribs that connect each other from the center of each side of a rectangular plane forming a rectangular parallelepiped decompression storage container, and a plurality of lattice-shaped ribs provided from the center of the region surrounded by the ribs, the square A reduced-pressure storage container characterized in that no rib is provided outside the region surrounded by the rib at the corner of the shape plane.   An outer peripheral rib is provided so as to connect each other from the center of the sides of the rectangular plane that form the rectangular parallelepiped decompression storage container, and is a corner of the rectangular plane and is surrounded by the outer peripheral rib. A reduced-pressure storage container characterized in that no rib is provided on the outside.   3. The reduced pressure storage container according to claim 2, wherein a plurality of lattice ribs are provided from the center of the region surrounded by the outer peripheral ribs.   A rib provided so as to connect from the center of the side of a rectangular plane that forms a rectangular parallelepiped decompression storage container, and a connecting means provided on the side to connect the ribs to each other, and A reduced-pressure storage container characterized in that a rib is not provided outside a region surrounded by the rib at a corner of a rectangular plane.   A rib provided to connect each other from the center of each side of a rectangular plane forming a rectangular parallelepiped decompression storage container, and a plurality of grid-like ribs provided from the center of the region surrounded by the ribs; A refrigerator having a reduced-pressure storage container, characterized in that a rib is not provided outside a region surrounded by the rib at a corner of the rectangular plane.

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