JP5824422B2 - Food storage container - Google Patents

Description

  The present invention relates to a food storage container, and more particularly, to a food storage container that can be heated as it is by a microwave oven or the like without being transferred to other tableware after the food is stored in a refrigerator / freezer. The storage container of the present invention can be directly heated and heated using a microwave oven without any special operation from a sealed refrigerated / frozen state.

  It has been widely practiced at home to store foods in sealed containers while preventing them from being dried, altered or contaminated in a refrigerator or freezer. Such food storage containers are molded with high accuracy with airtightness by plastic injection molding so that the liquid material inside does not leak due to tilting or falling. Various kinds of plastic containers that can be heated and heated by putting the storage container into the microwave oven without transferring to another container when heating, heating and thawing the food stored in this way using a microwave oven are also provided. Has been. In such a container, the air inside the container will expand due to inadvertent heating, so that the container will not be deformed or accidentally removed from the lid, or an unexpected situation such as sudden scattering of internal food will not occur. It is necessary to take measures to prevent food from leaking out or splashing while measuring the pressure inside.

  Several commercial products and proposals have already been made for such containers. For example, in Patent Document 1 below, the opening of the container body is sealed by one surface of the lid, while the lid is turned over so that the cover is simply placed on the opening. A food container that escapes the air inside the container is described. Patent Document 2 proposes a container that changes the attachment position and angle of the lid to the container body during storage and heating of the food, ensures hermeticity during storage, and secures a vent opening during heating. Has been. In addition, there is also a product in which a small opening with a lid for releasing air is provided in the lid of the container, and the lid of the small opening is opened during heating.

  Such a conventional storage / heating container for food, when shifting from a sealed state where food is stored to a heated state by a microwave oven, open an air vent lid in advance to secure an open part, It is necessary to perform some special artificial operation on the container body and the lid when heating and heating, such as changing the attachment position of the lid. If the preparatory operation before such a heating stage is neglected, the food inside the container suddenly ejects during the heating and causes an unexpected situation such as scattering around the container. In addition, there are containers that allow air to flow in both storage and heating states, but they are not sealed and are not preferred as storage containers during storage.

Utility Model 1-85287 JP 2002-362647 A

  The object of the present invention is to perform heating from a state in which food is stored in a sealed state using a microwave oven or the like, without performing a special operation such as partially opening the lid or changing the attachment position of the lid. A food storage container that can be transferred to a heating operation is provided.

The first invention of the present application is:
A food storage container comprising a container body and a lid for closing the opening,
The container body and the lid body have a body side wall and a lid side wall that are in contact with each other,
An annular ring rib that is in airtight contact with the entire circumference of the other side wall is provided on one of the main body side wall or the lid side wall,
The other side wall is provided with a sealing sliding wall that forms an airtight contact with the ring rib at the lower position of the lid body to form a hermetic seal of the container, and at the upper position of the lid body, a part or all of the other side wall is provided. A food storage container is provided which is provided with an air vent which is released from contact with the ring rib and forms a gap between the container body and the lid.

The second invention of the present application is:
In the food storage container,
On the outside of the lid side wall of the lid body, a streak-like lid ring rib that contacts the entire inner periphery of the body side wall is provided,
On the other hand, the container body has a bottom surface, a body side wall and an upper opening into which the lid is fitted,
Inside the container body upper end, a body rib is provided toward the opening of the body,
On the upper part of the main body side wall, a sealing sliding wall is provided that forms a hermetic seal of the container in contact with the entire lid ring rib at the lowered position of the lid,
A part of the sliding wall of the side wall of the main body, which is in contact with the lid ring rib, is provided with an air vent that retreats from the contact with the lid ring rib to form a gap with the lid body. A food storage container is provided.

A third invention of the present application provides a food storage container in which the air release of the container main body is a recess provided on the inner surface of the main body side wall, and forms a gas passage from the lower side to the upper side of the lid ring rib. is there.
According to a fourth aspect of the present invention, there is provided a food storage container, wherein the air bleed of the container body is a recess provided adjacent to the upper end of the side wall of the body and facing the opening.
The fifth invention of the present application provides the food storage container as described above, wherein the contact between the main body side wall and the lid side wall contacting each other supports the weight of the lid body and allows the lid body to rise due to an increase in pressure inside the container during heating. To do.

  The storage container of the present invention can be operated as it is without performing any special operation for heating the container when the food is hermetically stored in a microwave oven. There is no hassle of performing a special operation in heating, and an unexpected trouble is not caused by forgetting the operation. The container of the present invention does not increase the number of incidental parts such as providing a gas venting lid, and the cost can be reduced and the cleaning operation after use is easy.

It is a perspective view which shows the state which removed the cover of the storage container of this invention. FIG. 2 is a perspective sectional view of FIG. 1. It is a partially cutaway perspective sectional view of the storage container of FIG. 1 in a sealed state. It is sectional drawing which represented the notch part of FIG. 3a from the right direction in the figure. It is a partially cutaway perspective sectional view of the storage container of FIG. It is cut out in the cross section including the air vent. It is sectional drawing which represented the notch part of FIG. 4a from the right direction in the figure. It is a partially cutaway perspective sectional view of the storage container of FIG. It is cut out in the cross section not including the air vent. It is the other specific example of this invention, Comprising: It is the perspective view which notched some heat-sealed heating containers. An air vent was provided on the lid. FIG. 7 is a perspective view showing an air bleeding state in the specific example of FIG. 6.

Next, the present invention will be described in more detail by way of specific examples with reference to the drawings. The present invention is not limited to these specific examples.
(Example 1)
As shown in FIGS. 1 and 2, the food storage container of the present invention includes a container body 10 having an opening 11 in the upper part and a lid 30 having a shape corresponding to the opening and closing the container body 10.
The lid body 30 has a lid plane 32 that is rounded at four corners and has a substantially rectangular shape in plan view, a lid side wall 34 that rises from the outer peripheral edge thereof, and a lid flange 35 that is formed outward from the upper end of the lid side wall. A lid ring rib 38 is formed on the outer periphery of the lid side wall 34 so as to slightly protrude from the side wall surface, and a thin hermetic annular protrusion is formed around a vertical wall surface of the lid side wall 34 to enable the container body 10 to be sealed. .

  The container body 10 has a shape corresponding to the lid body 30 as a whole. That is, the container body 10 has a substantially rectangular bottom surface 12 with rounded corners, a body side wall 14 formed by expanding outward slightly from the outer peripheral edge thereof, and the lid body having a substantially rectangular shape similar to the bottom surface. An opening 11 into which 30 is fitted is formed. Further, the upper end portion 16 of the main body side wall 14 is provided with a main body flange 17 outwardly, and a handle 18 further bulging is provided on two opposing short sides. Inside the upper end portion 16 of the main body, a main body rib 22 is provided in an annular shape toward the opening 11 of the container main body 10. The body rib 22 engages with the lid ring rib 38 at the raised position of the lid body 30 to prevent the lid body 30 from being detached from the container body 10, and the lid is applied by slightly applying force to the lid body by hand. The ring rib 38 gets over the main body rib 22, and the lid 30 is released from the main body 10. The main body rib may be formed intermittently.

In the vicinity of the upper end of the main body side wall 14, a sliding wall 23 that extends outward until reaching the upper end portion 16 of the main body is formed. A portion of the sliding wall 23 that is in contact with the lid ring rib 38 at the entire circumference at a position where the lid body is lowered (pushed) forms a sealed sliding wall 24, and the lid ring rib 38 is formed on the wall surface. Slid in an airtight manner to ensure the tightness of the entire container.
Further, a pair of air vents 26 which are recesses provided on the inner surface of the side wall of the container body 10 are formed at the center of the long sides facing each other among the four sides of the container body 10 and at the upper part of the sliding wall 23. When the body 30 is raised, a part of the sliding wall 23 of the container body is released from contact with the lid ring rib 38 to form a gap between the container body 10 and the lid body 30. This gap forms a gas passage from the bottom to the top of the lid ring rib.
In this way, the sliding wall and the lid ring rib of the container body form a main body side wall and a lid side wall that are in contact with each other, support the weight of the lid body by the contact, and allow the lid body to rise due to an increase in the internal pressure of the container during heating. To do.

  The air vent can be provided on the lid side as described later. However, it is preferable to provide the air release on the container body side as in the specific examples of FIGS. 1 and 2 from the viewpoint of safety and design. When the air vent is provided on the lid, if the container is not fixed in the relative fitting position of the lid and the container body (for example, square or circular), the air vent is located near the handle and hot steam is generated in the hand. May touch.

  In terms of design, it is preferable to provide an air vent on the side of the container body to obtain a stable sealing property. The airtightness of the container depends on the sealing accuracy (FIG. 3b) between the lid ring rib 38 and the sealing sliding wall 24 of the container in the specific examples of FIGS. 1 and 2, while the lid body described later is provided with an air vent. The case (FIGS. 6 and 7) depends on the sealing accuracy between the main body rib 22 and the sealing sliding wall 37 of the lid. If these parts are located in the lower part of the molded product apart from the container body and the flange of the lid body, the deformation that occurs during molding or heating by the microwave oven is suppressed, and the sealing performance is stably obtained. . This storage container is a container that is repeatedly used in the home, and is preferably configured so that large heat deformation does not occur due to heating of the microwave and the airtightness is not lowered.

Next, storage and heating of food using the food storage container of the present invention will be described.
(Save)
When food is stored using the heating container of the present invention, it can be handled in the same manner as this type of conventional refrigeration / storage container. That is, food is stored in the container body 10 and a lid is attached to the opening of the body. When the lid 30 is pressed against the opening 11 of the container body, the lid ring rib 38 hits the body rib 22. Further, by slightly pushing it in by hand, the body rib is overcome, the lid ring rib slides on the sliding wall 23 of the body, and the lower surface of the lid flange 35 hits the upper surface of the body flange 17 to complete the sealing. Store this container in a refrigerator or freezer. In the storage container in this state, as shown in FIGS. 3a and 3b (internal food is omitted), the lid 30 is in the lowered position, and the lid ring rib 38 is in contact with the sealed sliding wall 24 over the entire circumference of the container. Forms a sealed state of a container.

(heating)
The storage container for storing food is taken out of the refrigerator and freezer.
The storage container is placed in a microwave oven as it is, and normal heating and warming operations are performed using a microwave oven under desired heating conditions. When heating, it is not necessary to perform special operations such as opening the air vent lid or changing / adjusting the position of the lid as in the case of a conventional storage container of the same type.
As shown in FIGS. 3a and 3b, the storage container of the present invention at the start of heating and warming has the lid 30 in the lowered position and covers the entire circumference of the lid ring rib 38 and the sealing sliding wall 24 of the main body. The container is hermetically sealed.
When heating progresses and the temperature inside the container rises, steam is generated inside and the internal pressure of the sealed container starts to rise, as shown in FIGS. 4a, 4b, and 5, the lid side wall of the lid body is the main body. Rises along the inner surface of the sliding wall 23 and stops at a predetermined raised position where the lid ring rib 38 abuts against the main body rib 22. At this raised position, the lid ring rib 38 reaches the position of the air vent 26 on the side wall of the main body, a gap is generated between the container main body 10 and the lid body 30, and the pressure is continuously released. Heating and heating can be stably continued without the food leaking out or spouting.

  As described above, the contact between the sliding wall of the container body and the lid ring rib supports the weight of the lid body and allows the lid body to rise due to an increase in the internal pressure of the container during heating. The rising width of the lid is automatically adjusted accordingly, and when the steam is generated vigorously continuously, the lid rises to the maximum opening position of the air vent, and when the steam generated from the heated food is small, the lid The body rises little and the opening area of the air vent decreases. In addition, even if the temperature of the container taken out from the microwave oven after the heating is finished, the lid once pushed up does not fall by its own weight, and an air passage to the inside of the container is secured and the inside of the container is in a decompressed state. Absent.

(Other examples)
As another specific example of the food storage container of the present invention, a ring rib that enables the storage container to be sealed may be provided in the container main body contrary to the above specific example, while air venting may be provided in the lid side wall. That is, as shown in FIG. 6 (sealed state) and FIG. 7 (air-bleeded state), the lid side wall of the lid body 30 forms a sliding wall 33 over the entire circumference, and the surface of this sliding wall covers the entire container body. The main body rib 22 provided continuously around the periphery slides to ensure the sealing property of the entire container. An air vent 36 that forms a recess toward the inside of the lid body is provided at the center of the long sides facing the lid body 30 and at the lower portion of the lid side wall that forms the sliding wall 33 of the lid body. Contact with the ribs 22 is released. In this specific example, the main body rib 22 is not only a stopper for preventing the lid body 30 from falling off, but also closes in a ring shape over the entire circumference of the container and comes into contact with the side surface of the lid to serve as a sealing ring rib.

The storage container of the present invention is not limited to a container having a rectangular opening (or bottom surface) as shown in the above specific example, and may be a square, other polygons, a circle, or the like.
In the specific example, the air vent is in the shape of a recess provided in a part of the container or the cover in the peripheral direction. However, a stepped portion extending in the entire peripheral direction may be provided and an air vent gap may be provided on the entire circumference. A plurality of ring ribs that form a seal may be provided in parallel. Furthermore, in the specific example, the inner side of the main body side wall and the outer side of the lid side surface are in contact, but conversely, the structure described in the specific example in which the outer side of the main body side wall and the inner side of the lid side surface are in contact may be employed.

  In the food storage container of the present invention, only the main body and the lid are essential members, and there is no need to attach a special member such as a part for removing air. For this reason, it is possible to prevent an increase in cost for production of parts and assembly work, and it is very easy to clean the container after the food is heated.

  The food storage container of the present invention can safely and reliably heat and heat foods that have been stored or refrigerated even when used at home in a microwave oven, and can reduce the burden on housework.

DESCRIPTION OF SYMBOLS 10 Container main body 11 Opening 12 Bottom surface 14 Main body side wall 16 Upper end part 17 Main body flange 18 Handle 22 Main body rib 23 Sliding wall 24 Sealing sliding wall 26 Air vent 30 Lid body 32 Lid plane 33 Sliding wall 34 Lid side wall 35 Lid flange 36 Air vent 37 Sealing sliding wall 38 Lid ring rib

Claims (2)

A food storage container comprising a container body and a lid for closing the opening,
The container body and the lid body have a body side wall and a lid side wall that are in contact with each other,
On the outside of the lid side wall, an annular lid ring rib that is in airtight contact with the entire inner periphery of the main body side wall is provided,
In addition to supporting the weight of the lid, it allows the lid to rise by increasing the internal pressure of the container during heating.
On the other hand, the container body has a bottom surface, a body side wall and an upper opening into which the lid body is fitted,
Inside the container body upper end, a body rib is provided toward the opening of the body,
A sealing sliding wall is formed on the upper inner surface of the main body side wall so as to contact the entirety of the lid ring rib at the lowered position of the lid to form a hermetic seal of the container, and the lid ring rib contacts at the raised position of the lid. A part of the sliding wall of the main body side wall is provided with an air vent that retreats from contact with the lid ring rib to form a gap with the lid body, and a gas passage is formed from below to above the lid ring rib. Food storage container. The food storage container according to claim 1, wherein the air bleed of the container body is a recess provided adjacent to the upper end of the side wall of the body and facing the opening.

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