JP6730725B2 - Food insulation container - Google Patents

Description

The present invention relates to a food heat insulation container suitable for carrying a liquid food such as a soup jar, and more particularly to a food heat insulation container capable of changing the capacity and improving the heat retention continuity.

A food heat retaining container (see Patent Document 1 below) capable of changing the capacity and maintaining the heat retaining effect for a longer time as needed is devised.

This food heat insulation container has an outer container made of a stainless steel vacuum heat insulating container, an inner container made of synthetic resin that can be put into and taken out of the outer container, and a lid that can be attached to the opening at the upper end of the inner container. The height of the opening of the inner container is lower than the height of the opening of the upper end of the outer container when it is stored in the outer container, and the lid is fitted with packing that adheres to the inner peripheral surface of the outer container. It has a different structure.

In the food heat insulating container of this structure, the capacity of the food to be contained can be changed by selecting whether the inner container is put in the outer container or not. In addition, by heating the inner container containing the food in the microwave oven and then storing it in the outer container, the heat retaining effect can be maintained for a long time.

However, the food heat insulation container of Patent Document 1 is suitable for containing cooked rice as food, but is not suitable for containing liquid food. This is because the water can be stopped only between the lid and the outer container, so that the water cannot be sufficiently stopped when the inner container is used.

JP, 2007-330574, A

Therefore, the main object of the present invention is to enable sufficient water stoppage regardless of whether or not the inner container is used.

Means therefor is a food heat-insulating container for keeping the food contained in a container warm, and as the container, an outer container having heat insulating properties and a synthetic material selectively and removably housed inside the outer container. An annular main body that includes an inner container made of resin, a lid body that is externally fitted to the upper end portion of the outer container, and the lid body has a fitting cylinder portion that is screwed into the upper end portion of the outer container. A member and a plug member detachably attached to the inner peripheral side of the main body member, and as the plug member, the lid member is accommodated inside the outer container when the lid body is fitted to the outer container. An inner-container-sealing-type plug member having a sealing portion that closely adheres to the upper inner peripheral surface of the inner container, and an upper inner peripheral surface of the outer container without the inner container when the lid is fitted to the outer container. It is a food heat insulation container provided with an outer container seal type stopper member having a sealing portion that adheres closely .

In this configuration, since the lid body is externally fitted to the upper end portion of the outer container as a container, the container is closed regardless of the presence or absence of the inner container. And, even when the food is stored in the inner container and then the inner container is stored in the outer container, or when the food is directly stored in the outer container without the inner container, the seal portion of the lid body is the upper part of the inner container or the outer container. It adheres to the inner surface.

According to this invention, whether the container containing the food is the inner container or the outer container, the seal portion is provided so that water can be stopped at the upper inner peripheral surface thereof. It is possible to sufficiently stop the water regardless of the presence or absence of water. Therefore, even if the food to be stored is liquid such as soup, the capacity can be changed and the heat retention can be improved.

Vertical sectional view of the soup jar. An exploded perspective view of a soup jar. The partial cross section front view of the disassembly state of a lid. The partial cross section front view of the disassembly state of a lid. The longitudinal cross-sectional view of the soup jar when the inner container is removed and used. The longitudinal cross-sectional view of the lid which concerns on another example. FIG. 7 is a plan view of the leaf spring member and the lower main body portion of the lid body shown in FIG. 6. FIG. 7 is a vertical cross-sectional view of a soup jar when the lid shown in FIG. 6 is attached and the inner container is removed for use. FIG. 7 is a vertical cross-sectional view of a soup jar when the lid shown in FIG. 6 is attached and an inner container is attached.

An embodiment for carrying out the present invention will be described below with reference to the drawings.
FIG. 1 is a vertical cross-sectional view of a so-called soup jar 11 that can store a liquid food as an example of a food heat insulating container that keeps the food contained in the container. The liquid food may be hot food or cold food.

As shown in FIG. 2, the soup jar 11 includes, as the container 12, an outer container 12a having a heat insulating property and an inner container 12b made of synthetic resin selectively and detachably housed inside the outer container 12a. In addition to the above, a lid 13 that is externally fitted to the upper end of the outer container 12a is provided.

The outer container 12a has a bottomed cylindrical shape made of a metal vacuum heat insulating container and has an opening at the upper end. The upper end portion of the outer container 12a has a wall thickness smaller than that of the lower portion, and an outer peripheral small diameter portion 21 into which the lid 13 is fitted and an inner peripheral large diameter portion on the inner peripheral surface. 22.

The diameter of the outer peripheral small-diameter portion 21 is such that a portion below the outer peripheral small-diameter portion 21 and the outer peripheral surface of the lid body 13 are substantially flush with each other when the lid body 13 is fitted, and a male screw for screwing the lid body 13 together. Have 23. The inner peripheral large-diameter portion 22 is formed substantially vertically, and has an inclined surface 24 below the inner peripheral large-diameter portion 22 so that the portion below the inner peripheral large-diameter portion 22 has a smaller diameter. The inclined surface 24 is a portion for sealing that extends obliquely downward on the inner peripheral side.

The inner container 12b has a cylindrical shape with a bottom, has an opening at the upper end, and has a shape in which the part excluding the upper end is contained inside the outer container 12a. An upper end edge portion 26 that rides on the upper end opening edge 25 of the outer container 12a is formed at the upper end portion. On the outer peripheral side lower surface of the upper end edge portion 26, a locking step portion 26a that locks to the upper end opening edge 25 is formed, and the upper end edge portion 26 is formed in a short cylindrical shape as a whole. The outer diameter of the upper end edge portion 26 is a size that fits inside the valley of the male screw 23 of the outer peripheral small diameter portion 21. On the outer peripheral surface of the upper edge portion 26, a constricted portion 26b that is recessed inward is formed over the entire circumference at an intermediate portion in the vertical direction.

Below the upper end edge portion 26 of the inner container 12b, at a position corresponding to the inner peripheral large diameter portion 22 of the outer container 12a, a packing 27 that seals with the inner peripheral large diameter portion 22 is attached. There is. Below the position of the packing 27, an inclined surface 28 for sealing similar to the inclined surface 24 is formed at a portion corresponding to the inclined surface 24 of the outer container 12a.

The lid 13 is composed of a main body member 31 made of synthetic resin and a stopper member 32 made of synthetic resin that can be attached to and detached from the main body member 31 as shown in FIG. The main body member 31 has a fitting tubular portion 33 that fits into the outer peripheral small diameter portion 21 of the upper end portion of the outer container 12a, and an internal thread 34 that engages with the male screw 23 of the outer container 12a is provided on the inner circumferential surface of the fitting tubular portion 33. Has been formed. The fitting cylinder portion 33 has an annular upper surface portion 35 that extends in the inner circumferential direction at the upper end, and the inner peripheral edge of the upper surface portion 35 is circular in plan view.

On the inner peripheral side of the upper surface portion 35 of the main body member 31, a plurality of regulating pieces 36 arcuate in a plan view are vertically provided with a gap. The size and shape of these restricting pieces 36 are set so that they are circular when viewed from the top when they are all connected. A ridge 36a extending in the horizontal direction is formed on at least two inner peripheral surfaces of the plurality of intermittently formed restriction pieces 36.

As shown in FIG. 3, the plug member 32 has a short cylindrical fitting portion 37 that fits inside a restriction piece 36 that is arranged in a circular shape in plan view, and a short cylindrical shape that has a diameter larger than that of the fitting portion 37. 3 and a seal portion 39 (39b) which is provided on the outer periphery of the lower end of the main body portion 38 and is in close contact with the upper inner peripheral surface of the container 12 containing food, that is, the inclined surface 28 in the example of FIG. doing. Only the seal portion 39 can be separated from the plug member 32, and the other portions are integrated.

The fitting portion 37 has a height such that the upper end surface thereof is flush with the body member 31 when fitted to the body member 31, and the upper surface of the fitting portion 37 is formed in a slightly concave curved surface. An engaging groove 37a with which the protrusion 36a engages is formed at the position corresponding to the protrusion 36a of the restriction piece 36 of the fitting portion 37 over the entire circumference. In FIG. 3, 36b of the restricting piece 36 of the main body member 31 is a rib extending vertically, but there is no part that engages with this in the fitting portion 37, and the plug member 32 is rotatable relative to the main body member 31. Is.

The main body portion 38 has a receiving portion 38a on the upper surface for receiving the lower end of the regulation piece 36 of the main body member 31, and the height of the main body portion 38 is such that the seal portion 39 at the lower end when the lid 13 is fitted into the outer container 12a. The size is set so as to closely contact the inclined surfaces 24 and 28 of the container 12.

As shown in FIG. 4, two types of plug members 32 are provided, and they are selected as needed in use. That is, the seal portion 39 is the inner container seal portion 39b that closely adheres to the inner container 12b or the outer container seal portion 39a that closely adheres to the outer container 12a. The two types of plug members 32 have the same fitting portion 37 shape. However, the sizes are different in the diameter and height of the main body portion 38 and the diameter of the seal portion 39.

Specifically, as shown in FIG. 1, when the lid 13 is fitted into the outer container 12a, the inner container seal-type plug member is provided with the inner container seal portion 39b that is in close contact with the inclined surface 28 of the inner container 12b. 32b, and an outer container seal type plug member 32a having an outer container seal portion 39a that comes into close contact with the inclined surface 24 of the outer container 12a as shown in FIG.

As shown in FIG. 6, the plug member 32 may be configured to have a seal portion 39 that is in close contact with the outer container 12a and also in close contact with the inner container 12b. That is, the plug member 32 has a structure including a vertical movement mechanism for vertically moving the seal portion 39 or an expansion/contraction mechanism for vertically expanding and contracting the main body portion 38.

The fitting portion 37 of the plug member 32 is formed in the same manner as described above, but the body portion 38 is vertically divided into two parts and has an upper body portion 41 and a lower body portion 42. The upper body portion 41 has a fitting convex portion 43 that projects downward and is circular in a plan view at the center of the lower surface. The lower main body portion 42 is formed in a substantially disc shape as a whole, and has a fitting concave portion 44 into which the fitting convex portion 43 of the upper main body portion 41 fits, and a packing that is positioned on the outer peripheral side of the fitting concave portion 44 and constitutes the seal portion 39. Has an outer peripheral edge portion 45 for mounting.

The upper body portion 41 and the lower body portion 42 are separably coupled by a leaf spring member 46. The leaf spring member 46 is formed of a flexible synthetic resin, has a cross shape in a plan view, and has four spring portions 47 similarly curved as shown in FIG. The curved shape of the spring portion 47 is a shape that extends obliquely in the direction away from the central portion 48 of the leaf spring member 46 in the vertical direction, and smoothly bends the tip in the vertical return direction on the outer peripheral side.

A through hole 48a for attachment is formed in the central portion 48 of the leaf spring member 46, and a slit 47a is formed in each spring portion 47 along the longitudinal direction. The through hole 48a is a portion to which the upper protrusion 43a, which is vertically provided from the center of the fitting convex portion 43 of the upper body 41 and has a retaining head at the tip, is detachably attached. The slit 47a is disposed at a position corresponding to the four spring portions 47 on the upper surface of the fitting recess 44 of the lower body portion 42, and the lower protrusion 44a having a retaining head at the tip is detachably attached. It is a part. With the vertical movement of the lower body portion 42, the lower protrusion 44a can relatively move within the slit 47a.

In the thus configured plug member 32, the lower body portion 42 is biased downward by the biasing force of the leaf spring member 46. The height of the seal portion 39 in the main body portion 38 is lower than the height at which the leaf spring member 46 is in contact with the inclined surface 24 of the outer container 12a as shown in FIG. As shown in FIG. 9, it is set so as to move up and down to the upper limit position in which the inner container 12b is in close contact with the inclined surface.

The soup jar 11 having the above configuration is used as follows.

First, the case of the soup jar 11 having the lid 13 provided with the two plug members 32 of the outer container seal type plug member 32a and the inner container seal type plug member 32b as shown in FIG. 4 will be described.

When it is desired to increase the capacity of the liquid food to be stored, the inner container 12b is taken out from the outer container 12a and the food is directly stored in the outer container 12a. Since the inner container 12b has the upper end edge portion 26 that rides on the upper end opening edge 25 of the outer container 12a, it can be easily removed from the outer container 12a. The lid 13 used in this case has an outer container seal type plug member 32a attached to the main body member 31 as the plug member 32.

To remove the plug member 32 from the main body member 31, the upper surface of the fitting portion 37 of the plug member 32 exposed at the central portion of the upper surface of the main body member 31 is pressed, and the restricting piece 36 is elastically displaced to cause the protrusion 36a. It is easy because the engagement between the engagement groove 37a and the engagement groove 37a is released. In the attached state of the plug member 32, the top surface of the plug member 32 and the top surface of the main body member 31 are flush with each other, and the top surface of the main body member 31 has a concave curved surface, so that it does not come off unless intentionally removed.

The plug member 32 is attached by fitting the fitting portion 37 of the plug member 32 from below to the inner peripheral side of the restriction piece 36 of the main body member 31. When the plug member 32 is pushed in, the protrusion 36a of the restriction piece 36 engages with the engagement groove 37a. Since the engaging groove 37a is formed on the entire circumference, the engaging groove 37a can be fitted regardless of the positional relationship between the main body member 31 and the plug member 32 in the circumferential direction, which is easy.

When the lid body 13 to which the outer container seal type plug member 32a is attached is fitted to the outer container 12a, as shown in FIG. 5, the seal portion 39 (outer container seal portion 39a) of the plug member 32 is inside the upper portion of the outer container 12a. The inclined surface 24 of the peripheral surface is intimately deformed to stop water. Since the lid 13 is configured to be fitted over the outer container 12a, the container 12 can be closed regardless of the presence or absence of the inner container 12b.

Although it is not necessary to increase the capacity of the liquid food to be stored, if it is desired to maintain the temperature of the food at a high temperature for a long time, the food is put in the inner container 12b and then heated in a microwave oven, and the inner container 12b after heating is heated. It is housed in the outer container 12a and covered with the lid 13. The inner container 12b can be easily accommodated in the outer container 12a by holding the upper edge portion 26 of the inner container 12b. Since the upper end edge portion 26 has the constricted portion 26b, it is easy to hold. In the lid 13 used in this case, the inner container seal type plug member 32b is attached to the main body 31 as the plug member 32.

When the lid 13 to which the inner container seal type plug member 32b is attached is fitted to the outer container 12a, as shown in FIG. 1, the seal portion 39 (the inner container seal portion 39b) of the plug member 32 is located inside the upper portion of the inner container 12b. The inclined surface 28 of the peripheral surface is closely contacted and deformed to stop water.

As described above, the seal portion 39 (the outer container seal portion 39a, the inner container seal portion 39b) has an upper inner circumference regardless of whether the container 12 containing the food is the inner container 12b or the outer container 12a. Water can be stopped on the surface. Therefore, it is possible to sufficiently stop the water even when the inner container 12b is used or not used.

Moreover, the change made depending on the presence or absence of the inner container 12b is the replacement of the plug member 32 provided detachably, and the handling is simple. Moreover, since the attachment of the plug member 32 to the main body member 31 is the engagement of the protrusion 36a and the engagement groove 37a, the attachment/detachment operation can be performed very easily. Since the plug member 32 is removable, it is easy to clean.

Since the stopper member 32 of the lid 13 rotates relative to the main body member 31, the lid 13 can be rotated even when hot food is contained and the inside becomes negative pressure, and the lid 13 can be smoothly rotated. Can be removed.

Next, as shown in FIG. 6, the case of the soup jar 11 having the lid body 13 provided with the plug member 32 having the seal portion 39 that is in close contact with both the outer container 12a and the inner container 12b will be described.

When it is desired to increase the capacity of the liquid food to be stored, the inner container 12b is taken out of the outer container 12a and the food is directly stored in the outer container 12a, as described above. Then, the lid 13 is fitted into the outer container 12a.

When the lid 12a is fitted, the lower body 42 of the plug member 32, which is biased downward by the plate spring member 46, is pushed up by the inclined surface 24 of the outer container 12a, and the sealing portion 39 is moved to the inclined surface of the outer container 12a. It comes into close contact with 24 and deforms to stop water.

Although the capacity of the liquid food to be stored does not have to be increased, if it is desired to maintain the temperature of the food at a high temperature for a long time, the food is put in the inner container 12b and then heated in a microwave oven as described above. The inner container 12b is housed in the outer container 12a and covered with the lid 13.

When the lid body 13 is fitted, the lower body portion 42 of the stopper member 32 is pushed up against the biasing force of the leaf spring member 46, and the seal portion 39 is brought into close contact with the inclined surface 28 of the inner container 12b and deformed. , Water is stopped.

In this way, the seal portion 39 can stop water at the upper inner peripheral surface of the container 12 regardless of whether the container 12 containing the food is the inner container 12b or the outer container 12a. Therefore, it is possible to sufficiently stop the water even when the inner container 12b is used or not used.

In addition, since the lid 13 and the plug member 32 may be one, it is possible to save the trouble of replacing the plug member 32.

Further, similarly to the above, since the plug member 32 of the lid 13 can rotate relative to the main body member 31, the lid 13 can be smoothly removed even if the inside of the container 12 has a negative pressure. In addition, the plug member 32 is removable, and the upper body part 41 and the lower body part 42 of the plug member 32 are also separable, which facilitates cleaning.

In the correspondence between the configuration of the present invention and the configuration described above,
The food heat insulating container of the present invention corresponds to the soup jar described above, but the present invention is not limited to the above-described configuration, and other configurations can be adopted.

For example, as shown in FIG. 4, two plug members 32, an outer container seal type plug member 32a and an inner container seal type plug member 32b, and an outer container 12a and an inner container 12b as shown in FIG. The lid 13 may be provided with the plug member 32 having the sealing portion 39 that operates.

The food heat insulating container may contain not only liquid food but food in other states such as cooked rice.

The lid body may be attached by screwing using a screw, or may be retained by a fastener such as a buckle.

11... Soup jar 12... Container 12a... Outer container 12b... Inner container 13... Lid 25... Upper end opening edge 26... Upper edge 32... Plug member 39... Seal part 39a... Outer container seal part 39b... Inner container seal part

Claims (3)

A food heat insulating container for keeping food contained in a container,
As the container, an outer container having a heat insulating property, and an inner container made of synthetic resin selectively and removably housed inside the outer container are provided.
A lid body fitted to the upper end of the outer container,
The lid body has an annular main body member having a fitting tubular portion that is screwed into the upper end portion of the outer container, and a plug member detachably attached to the inner peripheral side of the main body member,
As the stopper member, an inner-container-sealing-type stopper member having a seal portion that comes into close contact with an upper inner peripheral surface of the inner container that is accommodated inside the outer container when the lid is fitted to the outer container. An outer container seal-type plug member having a seal portion that comes into close contact with the upper inner peripheral surface of the outer container without the inner container when the lid is fitted to the outer container container. The food heat insulating container according to claim 1, wherein an upper edge portion that rides on an upper edge opening edge of the outer container is formed at an upper end portion of the inner container. The food heat insulating container according to claim 1 or 2, wherein the outer container is a metal vacuum heat insulating container.

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