JP6488032B1 - Multifunctional container that can be cooked in a microwave - Google Patents

Abstract

An object of the present invention is to prevent a risk that a container body and a lid member made of a hard plastic are deformed or melted by cooking in a microwave oven when the internal pressure increases and exceeds 110 ° C. A multi-functional container that can be cooked in a microwave oven includes a container body 1 and a lid body 2 formed of heat-resistant plastic, and a flange portion 4 is formed on the upper opening side of the container body 1. At the same time, rod-like protrusions 5 are provided outside the opposing positions of the flange portion 4, tongue-like hanging portions 7 are formed on the opposite side surface portions of the lid 2, and the hanging portion 7 has the rod-like protrusions 7. A substantially T-shaped notch groove 9 for engaging the projection 5 is provided, and a tube-shaped packing is provided along the inner peripheral surface of the edge of the lid, and the T-shaped notch groove 9 It can be selectively exerted in a pressurized function state that can be cooked or a decompression function state that can be stored, avoiding dangers in handling, shortening the cooking time, preventing invasion of germs, etc., preventing oxidation, maintaining freshness, It can contribute to extending the storage period. [Selection] Figure 1

Description

  The present invention relates to a multifunctional container that can be cooked in a microwave oven with foods, can be used as it is, and can be used as a storage container after being pressurized or decompressed and sealed.

  A plurality of known techniques are known as this type of cooking container. As a first known technique, there is a microwave cooking container comprising a cup-shaped container body made of ceramic, glass or hard plastic, a plastic sheet-like lid and a cap, and the lid is annular in the upper part. A recess and a lid recess, a lid flange at the bottom, a lid groove protruding upward from the lid flange, the lid recess having a lid opening at the center and a lid vapor discharge groove at the side; The cap has a flange on the top and a cap fitting part on the side, and has an adapter between the container body and the lid, and the adapter has an opening provided at the center of the top, an adapter flange, and the adapter. An adapter fitting portion extending upward from the flange, and a packing provided on the attachment portion, and an annular recess of the lid and the flange of the cap, and the lid recess and the cap fitting The container is fitted and integrated, and the above-mentioned discharge in the container is performed by the lid opening and the lid vapor discharge groove (refer to Patent Document 1). .

  In the first known microwave cooking container, the cap is automatically pushed upward, and the water vapor generated in the container is automatically generated by the lid opening and the cap flange or the vapor discharge groove of the lid. Therefore, there is no risk of the container body and lid fitting coming off due to vapor pressure, or the contents easily splashing outside the container, so that the inside of the microwave oven is not contaminated even when soup or other soup is heated. That's it.

  In addition, as a second known technique, the bottom of the container body is an embedded structure larger than the side wall, and that the thickness is continuously increased from the side wall to the bottom. It is the cooking container for microwave ovens characterized (refer patent document 2).

  In the second known microwave cooking container, the bottom of the container body is an embedded structure larger than the side wall, and in particular, the wall thickness continuously increases from the side wall to the bottom. By adopting an integrated structure, the heat capacity of the bottom part or the bottom part and its surroundings is increased, and heating of the cooking object on the bottom part side where microwaves are difficult to reach is high in thickness and heat capacity and heat retention is high. Complemented by heat conduction from the bottom or the bottom and its surroundings, heat convection is also improved, heat is balanced with the side where the microwaves are concentrated, etc., and uniform heat without uneven heating is realized . In addition, when it is an integral structure in which the wall thickness continuously increases from the side wall to the bottom, the stability as a container is increased and the washing becomes easier.

  Furthermore, as a third known technique, although not a cooking container, a vacuum valve that operates to maintain the vacuum pressure by making the inside of the container body communicate with the outside or shutting off the communicating state, In a vacuum valve-operated hermetic container having a packing that tightly contacts the inner wall of the container body and seals the inside of the container body, the container lid is an annular recess that is released toward the outside in the horizontal direction for inserting the packing. A body part that is injection-molded so as to have a groove, and a downward bent peripheral part that is bent so as to surround the peripheral part of the container body at the outer peripheral edge of the body part are joined by double injection. This is a vacuum valve-actuated hermetic container lid (see Patent Document 3).

  In this third known art vacuum valve-operated hermetic container lid, a downwardly bent peripheral edge formed so as to surround the outer peripheral edge of the container main body is double-injected into the lid body part, or separated and manufactured. By adopting a structure for assembling and joining in this way, it is possible to make a solid mounting in which the annular groove for mounting the packing is released outward in the horizontal direction, not the vertical direction, and the assembly work process Shortening increases productivity and lowers production cost.

Japanese Patent No. 4503694 Japanese Patent Laid-Open No. 8-324653 JP 2007-126214 A

  In the microwave cooking container according to the first known technique, the lid opening and the steam discharge groove are provided, and the container can be kept sealed under reduced pressure only by closing the cap. It cannot be used as a storage container.

  Also, in the microwave oven cooking container according to the second known technique, it is clear that a vertical cylinder part is provided at the top center part of the lid, and the vertical cylinder part constitutes an opening serving as a steam vent hole. As in the first known technique, the container cannot be kept in a sealed state under reduced pressure due to the presence of the opening, and cannot be used as a storage container substantially. Has a point.

  Further, in the vacuum valve-operated hermetic container lid according to the third known technique, when the container lid is attached to the container body, the silicone packing comes into close contact with the inner wall surface of the container body, If the body part is pressed lightly, the air inside the container body will escape to the outside through the valve hole.At this time, if the vacuum valve is lightly pressed and the valve part comes into close contact with the valve seat, the inside of the container body will be exposed to the outside. Since it is cut off from the body, when the pressed body tries to return to its original state due to elasticity, it can prevent the container lid from coming off due to the vacuum pressure formed inside, and the strong sealing force can be prevented by forming the negative pressure However, the body of the container lid is manually pushed and deformed to discharge the air inside the container body to the outside, and then the vacuum valve is pushed to close the valve hole. Since the airtight state is maintained, the degree of deformation and decompression of the body varies depending on the control, and the degree of decompression differs depending on the timing of pressing the vacuum valve, resulting in a difference in sealing force. doing.

  In any case, if the container body and the lid member in the first and second known technologies are formed of hard plastic, oil, salt, sugar, etc. are used in cooking in a microwave oven. In such a case, the internal pressure may increase and exceed 110 ° C., thereby causing a problem in that there is a handling risk of deformation or melting.

  The main object of the present invention is to eliminate all these problems and provide a pressure vessel that can be cooked in a microwave oven and a vessel that can be automatically vacuum-stored.

As a specific means for achieving the above object, the present invention comprises a container body and a lid formed of heat-resistant plastic, and a flange portion is formed on the upper opening side of the container body. Rod-shaped projections are provided outside the opposed positions of the flange portion, tongue-like hanging portions are formed on opposite side surface portions of the lid, and the rod-shaped projections are engaged with the hanging portions. A substantially T-shaped notch groove is provided along with an inner peripheral surface of the edge of the lid, and the T-shaped notch groove has a vertical groove and a large diameter. It consists of a horizontal groove at the end and an inclined groove at the large end, and can be cooked when the protrusion is engaged with a vertical groove or a horizontal groove at the large end, and the protrusion is an inclined groove at the large end. When engaged with the container, place the container inside in a vacuum or vacuum that can be stored. There is provided a multifunctional container capable cooked in a microwave oven, characterized in that it lifting.

In the present invention, the tubular packing is made of silicon; and the container main body and the lid body are in a ratio of about 0.05 to 0.1% with respect to 1 kg of the raw material syndiotactic polystyrene (SPS). In addition, it is formed of a heat-resistant plastic to which an oliffin-based additive is added .

  According to the multi-functional container that can be cooked in the microwave oven according to the present invention, the danger of handling that has occurred in the cooking in the conventional microwave oven is avoided, and the cooking temperature is set to 103 to 110 ° C. Time can be shortened, and it can be kept in a vacuum (vacuum) state as a storage container after cooking, preventing entry of germs from outside, greatly contributing to antioxidants, maintaining freshness, extending the storage period, etc. In addition, it can be used in a microwave oven, and has an excellent effect that the pressure function state and the vacuum function state can be selectively and safely and reliably exhibited.

  Furthermore, since the tube-like packing is made of silicon, it has an excellent effect that it can be used for a long period of time as a container that is resistant to heat and excellent in pressure resistance and can be cooked in a microwave oven.

It is the side view which showed the multifunctional container which can be cooked with the microwave oven which concerns on preferable embodiment of this invention. It is sectional drawing which follows the AA line in the multifunctional container of FIG. It is an expanded side view of the principal part which shows the relationship between the processus | protrusion and lid | cover during cooking by rotating a cover body in the arrow x direction at the time of the heating in a multifunctional container, Comprising: FIG. FIG. 4B is a side view showing the engagement state between the protrusion and the horizontal groove, and FIGS. 2C and 2D are side views showing the vertical movement of the lid during heating. FIG. These are expanded sectional views which show the condition of the packing at the time of a heating. It is an expanded side view of the principal part which shows the relationship between the processus | protrusion and cover for rotating the cover body in the arrow y direction after heating in a multifunctional container, and explaining the decompression condition after cooking, (a) is a figure. The side view in the initial stage of rotating the lid, FIG. (B) is a side view showing the engagement state between the projection and the inclined groove, and FIGS. FIG. 4E is an enlarged cross-sectional view showing a packing state at the time of decompression.

  The present invention will be described based on the illustrated embodiment. First, in FIGS. 1 and 2, reference numeral 1 denotes a container body, and reference numeral 2 denotes a lid body that is applied to the container body 1. A pedestal 3 is formed at the bottom of the container body 1, a flange 4 is formed at the upper opening side, and a rod-like shape for locking the lid 2 outside the opposed position of the flange 4. The protrusion 5 is provided so as to protrude. In addition, the flange parts on both the left and right sides that are not provided with the protrusions 5 are each formed as a handle part 4a by extending and protruding in a tongue shape.

  The lid 2 has a handle portion 6 having a relatively large diameter protruding at the center portion, and tongue-like hanging portions 7 and 8 are formed on opposite side surface portions. A substantially T-shaped notch groove portion 9 for engaging with a rod-like protrusion 5 provided on the container body 1 is provided, and one groove portion 9a forming the T-shape of the notch groove portion is formed substantially horizontally, The other groove portion 9b is formed to be slightly inclined upward, and the end of each groove portion is formed with a large diameter. That is, it is formed by the vertical groove portion 9, the large-diameter end horizontal groove portion 9a, and the large-diameter end inclined groove portion 9b.

  Further, a tubular packing 10 is disposed inside the peripheral edge of the lid 2, and a support protrusion 11 for supporting the packing 10 is ringed along the inner side of the peripheral edge with a predetermined interval from the peripheral edge. It is formed in a shape.

  The container body 1 and the lid body 2 are made of heat-resistant plastic. For microwave cooking, for example, the heat-resistant temperature is 240 ° C., and SPS (syndiotactic polystyrene) is used as a raw material. However, the general-purpose products used for injection have a high melting temperature of raw materials, poor fluidity, and it is necessary to adjust the mold temperature, and there are many problems in manufacturing, leading to high costs. However, it is not used for microwave oven containers. However, as a result of various experiments, the SPS raw material uses the trade name “Zarek” (registered trademark) manufactured by Idemitsu Kosan Co., Ltd., and about 0.05 to 0.1% of an olefin additive is added to 1 kg of the raw material. As a result, fluidity, hardness, and smoothness were improved, mold molding became possible, and it became possible to manufacture as a heat-resistant container for a microwave oven.

  In this case, the container body 1 and the lid body 2 are basically round, and the container body 1 can be heated centrally by microwaves by forming a platform 3 at the bottom and raising the bottom about 5 to 15 mm. In addition to making it a simple shape as tableware, it was possible to wash it with a dishwasher. The packing 10 to be used is a silicon tube (hollow) in consideration of heat resistance, and the elasticity and tightening allowance (−0.3) of the packing 10 using the gap between the container body 1 and the lid 2. (3mm), so that it can be used safely and reliably.

  Then, use of the multifunctional container which can be cooked with the microwave oven which concerns on this invention is demonstrated. First, as shown in FIGS. 3 (a) to 3 (e), when an appropriate ingredient to be cooked together with, for example, soup stock is placed in the container body 1 and the lid 2 is closed, FIG. As shown in FIG. 4B, when the projection 5 is fitted in the notch groove portion 9, the handle 6 is grasped and the lid body 2 is turned counterclockwise as indicated by the arrow x, the projection 5 is shown in FIG. Will engage the horizontal groove 9a. In this state, as shown in FIG. 5E, there is still a gap around the packing 10, that is, a gap between the container body 1, the lid body 2 and the support protrusion 11. The main body 1 is put into a microwave oven and cooking is performed by setting a required cooking time.

  When the soup stock and ingredients in the container body 1 are heated, the moisture naturally evaporates and the internal pressure increases, but there is still a gap around the packing 10, so there is still a gap around the gap. Air and water vapor are discharged to the outside. In this case, by setting the internal pressure of the container body 1 to 0.3 to 0.6 Mpa / G, the cooking temperature can be shortened to 103 to 110 ° C. and the cooking contents can be expanded. During cooking, there is still a margin in the engagement between the protrusion 5 and the horizontal groove 9a, so that the lid body 2 moves up and down repeatedly as shown in FIGS. I can escape to the outside well.

  After cooking in the microwave oven, the container body 1 is taken out of the microwave oven, and as shown in FIGS. 4 (a) to 4 (e), the handle portion 6 is grasped and the lid 2 is rotated in the clockwise direction indicated by the arrow y. Then, as shown in FIGS. 4A and 4B, the protrusion 5 is engaged with the inclined groove 9b. During this time, since the heating operation is finished, the internal pressure does not increase, and conversely, the internal pressure goes in the direction of decreasing, but the lid 2 is pushed down by engaging the projection 5 with the inclined groove portion 9b. Therefore, as shown in FIG. 4E, the packing 10 is crushed and there is no gap around the packing 10. Then, although the food is still hot after cooking, the pressure in the container body 1 goes in the direction of pressure reduction, but since the packing 10 is supported by the support protrusions 11, there is no room for outside air to enter. As a whole, the container body 1 is maintained in a reduced pressure state as a whole.

  Thus, in addition to being able to be used as a cooking container, when used as a storage container, as described above, the lid body 2 is sealed after cooking and the inside is brought into a reduced pressure (vacuum) state, so that it can be externally applied. Can prevent the invasion of various germs, greatly contributes to preventing oxidation, maintaining freshness, extending the storage period, etc., and is compatible with microwave ovens, allowing the pressure function state and vacuum function state to be selectively displayed safely, reliably and easily. It can be done.

  A multifunctional container that can be cooked in a microwave oven according to the present invention includes a container body 1 and a lid body 2 formed of heat-resistant plastic, and a flange portion 4 is formed on the upper opening side of the container body 1. In addition, rod-like protrusions 5 are provided outside the opposing positions of the flange portion 4, tongue-like hanging portions 7, 8 are formed on opposite side surface portions of the lid body 2, and the hanging portion 7 , 8 is provided with a substantially T-shaped notch groove portion 9 for engaging with the rod-like protrusion 5 and a tube-like packing 10 along the inner peripheral surface of the edge of the lid, The T-shaped notch groove 9 can be selectively exerted in a pressurizing function state that can be cooked or in a decompression function state that can be stored, which has occurred in conventional cooking in a microwave oven. , Avoid handling hazards and set the cooking temperature to 1 The cooking time can be shortened by setting the temperature to 3 to 110 ° C. Furthermore, it can be kept in a reduced pressure (vacuum) state as a storage container after cooking, preventing invasion of germs from outside, preventing oxidation, and maintaining freshness. It can greatly contribute to the extension of the storage period, etc., and it can be widely used for cooking in a microwave oven because it can be used safely and reliably and easily in a pressure function state and a vacuum function state with a microwave oven. It is.

1 Container body
2 Lid 3 Height 4 Flange 4a Handle 5 Protrusion 6 Handle 7 and 8 Suspension 9 Vertical groove 9a Large end horizontal groove
9b Large diameter end inclined groove portion 10 Packing 11 Support protrusion

Claims (3)

Consists of a container body and lid made of heat-resistant plastic,
A flange portion is formed on the upper opening side of the container body, and a rod-shaped protrusion is provided outside the opposed position of the flange portion,
A tongue-like hanging portion is formed on both opposite side surface portions of the lid, and the hanging portion is provided with a substantially T-shaped notch groove portion for engaging with the rod-like protrusion, A tube-shaped packing is provided along the inner peripheral surface of the edge of the lid,
The T-shaped notch groove portion is composed of a vertical groove portion, a large diameter end horizontal groove portion, and a large diameter end inclined groove portion,
When the protrusion is engaged with the vertical groove or the horizontal groove at the large end, cooking is possible,
A multifunctional container that can be cooked in a microwave oven, wherein the inside of the container can be maintained in a reduced pressure or vacuum state so that the inside of the container can be maintained when the protrusion is engaged with the inclined groove at the large end. The multifunctional container that can be cooked in the microwave oven according to claim 1, wherein the tubular packing is made of silicon. The container body and the lid body are made of heat-resistant plastic to which an olefin-based additive is added at a ratio of about 0.05 to 0.1% with respect to 1 kg of the raw syndiotactic polystyrene (SPS).
The multifunctional container which can be cooked with the microwave oven of Claim 1 thru | or 2 characterized by these.

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