JP2976179B2 - Food containers - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a lunch box and other food containers.

[0002]

2. Description of the Related Art Conventionally, an aluminum lunch box has been known. Such a lunch box has a container having an upper opening made of a thin aluminum plate, a lid made of a detachable aluminum thin plate for covering the opening, and extending from both sides of the lid and facing both sides of the container. And a lock piece that can be swung freely, and attaching / detaching means is provided between both sides of the container and each lock piece.

It is known that a conventional lunch box is provided with a seal packing for hermeticity. However, since a thin aluminum plate is press-formed, a groove for accommodating the seal packing in a lid is formed. Then, irregularities corresponding to the grooves are generated on the outer surface of the lid, and there is a problem that the design in appearance is restricted.

Further, in the conventional lunch box, accessories such as chopsticks cannot be stored, so that it is inconvenient to separately prepare chopstick boxes and the like.

[0005]

SUMMARY OF THE INVENTION The present invention is a lunch box made of a thin metal plate such as aluminum, but can be provided with a seal packing without being restricted by its external design. There is a problem in making it possible to store accessories.

[0006]

According to the present invention, in order to solve the above-mentioned problems, an inner lid is interposed between a lid and a container, and a seal packing can be mounted through the inner lid. Also, it is characterized in that accessories such as chopsticks can be stored.

In view of the above, the present invention is configured as a first means by providing a container 1 having an upper opening, a detachable lid 2 for covering the opening, and a container extending from both sides of the lid. In a food container comprising a lock piece 3 which is swingable opposite to the opening and which is provided between both sides of the container and each lock piece, between the lid 2 and the container 1 A peripheral groove wall 11 having a substantially inverted U-shaped cross section in which an inner lid 8 which is detachably interposed and clamped and fastened has a groove 10 which is opposed to an opening edge of the container 1 and in which a seal packing 9 is removably received. A curtain plate wall 13 for closing the opening of the container is provided inside the peripheral groove wall 11, and an accessory storage chamber 14 is formed between the curtain plate wall 13 and the lid 2. The groove wall 11
The inner wall of the groove 10 is refracted upward from the curtain wall 13 to form an inner wall.
The inner peripheral wall 11b formed and the outer
The peripheral wall 11a is raised above the curtain plate wall 13,
The surrounding wall 12 surrounding the outer peripheral surface of the opening edge of the container extends downward from the outer peripheral wall 11a beyond the seal packing 9, and the surrounding wall 12 is formed in a tapered shape so as to spread outward toward the lower end. And the container 1 comprises:
The seal packing 9 surrounded by the surrounding wall 12
The opening edge 5b (1
b), wherein the lid 2 surrounds the surrounding wall 12 of the inner lid 8.
In that the peripheral wall 21 is provided .

In addition, the present invention is configured as a second means in that an inner lid 8 interposed between the lid 2 and the container 1 is provided.
A groove 10 for removably storing the seal packing 9 is formed.
Circumferential groove wall 11 is bent upward from curtain plate wall 13
And an inner peripheral wall 11b constituting an inner wall of the groove 10;
10 and the outer peripheral wall 11a constituting the outer wall of the
And is formed by being raised toward the
3 is provided with a bulging portion 17 which is deformed so as to expand upward facing an inner peripheral wall 11b constituting a part of the groove 10,
The point is that a pocket portion 18 communicating with the groove 10 is formed on the lower surface of the bulging portion 17.

[0009]

Embodiments of the present invention will be described below in detail with reference to the drawings.

(First Embodiment) FIGS. 1 to 3 show a first embodiment of the present invention. A food container embodied as a lunch box includes a container 1 and an opening of the container 1. And a lock piece 3 for fixing the cover 2 to the container 1 so as to be detachable.

The container 1 is formed by detachably stacking a plurality of divided containers composed of a lower container 4 and an upper container 5, and each of the containers 4, 5 is formed by pressing a thin metal plate such as aluminum. Is formed.

The lower container 4 has an opening 4a in the upper part, and integrally has locking lugs 6 on both sides of the opening edge. The upper container 5 has an opening 5a in the upper part, the opening edge 5b of the opening 5a is formed in a constricted shape inclined inward, and has a stepped throttle bottom 5c.

A seal lid 7 is interposed between the lower vessel 4 and the upper vessel 5, and the seal lid 7 is connected to the opening 4 of the lower vessel 4.
a, and a closing portion 7a for closing the opening 4a in a watertight and airtight manner, a flange portion 7b for covering the opening edge of the lower container 4, and a fitting bottom 5c of the upper container 5 for fitting. A concave portion 7c is provided, and the whole is integrally formed of an elastic material such as natural rubber or synthetic rubber or a soft material such as elastomer.

An intermediate lid 8 is interposed between the upper container 5 and the lid 2. The inner lid 8 is formed integrally with a synthetic resin, and as shown in FIGS.
b, in which a groove 10 for detachably storing a seal packing 9 made of a separate elastic body is formed opposite to the section b.
Outer peripheral wall 1 of the peripheral groove wall 11
1a to the surrounding wall 12 surrounding the outer peripheral surface of the opening edge 5b
And a curtain plate wall 13 for closing the opening 5a of the upper container 5 extends from the inner peripheral wall 11b of the peripheral groove wall 11, and an accessory storage chamber 14 is formed between the curtain plate wall 13 and the lid 2. doing. That is, the curtain plate wall 13 is located lower than the top of the peripheral groove wall 11 and is located substantially on the same plane as the opening 5 a of the upper container 5.
The surrounding wall 12 extends beyond the seal packing 9 and the opening 5
a, the opening edge 5b of the upper container 5 is
Surrounded from the circumference .

In this embodiment, the accessory storage room 1
In order to store the chopsticks 15 in the container 4, as shown in FIGS. 1 and 3 (C), a holding piece 16 in which the curtain plate wall 13 of the inner lid 8 projects into the accessory storage chamber 14 is extended. Is used to hold the chopsticks 15.

The seal packing 9 forms an annular body detachably fitted along the groove 10, and projects slightly below the curtain wall 13 in a free state as shown in FIG. 3B. Is formed of an elastic body that elastically deforms inward of the groove 10 when pressed against the opening edge 5b of the upper container 5. In order to facilitate attachment and detachment of the seal packing 9 to and from the groove 10, as shown in FIG. 3B, there is provided a bulging portion 17 that is deformed so that the curtain plate wall 13 bulges upward facing a part of the groove 10. A pocket portion 18 is formed on the lower surface of the bulging portion 17 and communicates with the groove 10. Therefore, by inserting a fingertip into the pocket portion 18, the seal packing 9 can be easily taken out from the groove 10, and the seal packing 9 and the inner lid 8 can be individually washed.

Further, as shown in FIG. 3C, a valve body 19 is provided on the curtain plate wall 13 of the inner lid 8, and the curtain plate wall 1 is provided.
The column portion 19 a of the valve body 19 is fitted into the valve seat 20 provided on the base 3, and the valve membrane 19 b of the valve body 19 is brought into contact with the lower surface of the valve seat 20.

The lid 2 is formed by press-forming a thin metal plate such as aluminum. When the lid 2 formed in an inverted dish shape is covered with the inner lid 8,
A peripheral wall 21 that is placed on the top of the peripheral groove wall 11 and surrounds the surrounding wall 12 of the inner lid 8 in this state so as to completely hide the same, and a lid wall 22 that covers the upper part of the inner lid 8 is provided. The lid wall 22 has a water-drop-shaped bulging portion 23 for receiving the chopsticks 15 held by the holding pieces 16 of the inner lid 8.

The lock pieces 3, 3 extend from bearing pieces 24 provided on the peripheral wall 21 located on both sides of the lid 2, and can swing freely facing both sides of the container 1. It is formed from a gate-shaped wire. That is, each lock piece 3
Shaft (not shown) supported by a pair of bearing pieces 24, 24
The arm portions 25, 25 extending beyond the upper container 5 are provided, and a locking portion 27 curved in an arc shape is provided in a middle portion of a rod portion 26 connecting the both arm portions 25, 25.

Then, the upper container 5 is laminated on the lower container 4 via the seal lid 7, and the inner lid 8 is placed on the upper container 5, and then the lid 2 is covered on the inner lid 8. When the pair of lock pieces 3 and 3 are rotated while holding the body 2, the locking portions 27 of the lock pieces 3 and 3 are fitted and locked below the locking ear pieces 6 of the lower container 4. At this time, as shown in FIG. 3A, the seal packing 9 elastically deforms to seal the opening edge 5b of the upper container 5 in a watertight and airtight manner. The accessory storage room 14 stores chopsticks 15. When the inner lid 8 is covered with the upper container 5, the surrounding wall 12 has an opening edge 5 b of the upper container 5.
Function as a guide for guiding the seal packing 9 to the seal packing 9, and when the locking pieces 3 and 3 are rotated to lock the attaching / detaching means by the locking portion 27 and the locking ear piece 6, the deformed seal packing 9 is It functions as a holding material that prevents it from protruding outside.

Therefore, the food container can be suitably used as a lunch box. At this time, rice can be stored in the lower container 4 and side dishes can be stored in the upper container 5. The upper container 5 is securely sealed by the inner lid 8, so that moisture and juice do not leak.

When opening the lunch box for a meal,
The locking pieces 3 and 3 may be turned in a direction away from the container 1 and the locking portion 27 may be removed from the locking ear piece 6, whereby the lid 2 can be released. When a negative pressure is generated inside the upper container 5 due to cooling of the stored side dishes, the inner lid 8 is in close contact with the upper container 5. Therefore, the column 1 of the valve body 19
When the valve 9a is pressed, the valve membrane 19b moves, and the outside air enters the upper container 5 through the insertion hole of the valve seat 20 into which the pillar 19a is inserted, so that the inner lid 8 can be easily removed from the upper container 5. Become. The upper container 5 is connected to the concave portion 7c of the seal lid 7.
, And by removing the seal lid 7 from the opening 4a of the lower container 4, the multi-stage container can be disassembled in the same manner as a conventional lunch box.

(Second Embodiment) FIG. 4 shows a second embodiment of the present invention. The food container is embodied as a lunch box, and covers the container 1 and the opening of the container 1. Lid 2
And lock pieces 3 and 3 for detachably fixing the lid 2 to the container 1. An inner lid 8 is interposed between the container 1 and the lid 2.

The single container 1 is formed by press-molding a thin metal plate of aluminum or the like, has an opening 1a in the upper part, and narrows the opening edge 1b of the opening 1a inward. The locking recess 6a is formed by bending the bottom and the peripheral wall inward on both sides of the container 1.

The inner lid 8 is integrally formed of a synthetic resin, and has a substantially reverse cross section in which a groove 10 is formed opposite to the opening edge 1b of the container 1 to removably accommodate a seal packing 9 made of a separate elastic body. A peripheral wall 12 that surrounds the outer peripheral surface of the opening edge 1b extends from an outer peripheral wall 11a of the peripheral groove wall 11 and extends from an inner peripheral wall 11b of the peripheral groove wall 11. A curtain wall 13 that closes the opening 1 a of the container 1 extends, and an accessory storage chamber 14 is formed between the curtain wall 13 and the lid 2. That is, the curtain plate wall 13 is
Is located lower than the top of. Therefore, the accessory storage room 1
4 can store paper napkins and other flat accessories.

At the lower end of the surrounding wall 12, a locked flange 12a projecting outward is integrally formed.

The seal packing 9 constitutes an annular body detachably fitted along the groove 10 and, as shown in FIG. 4B, protrudes slightly below the curtain wall 13 in a free state. Is pressed against the opening edge 1b of the container 1 when the groove 10 is pressed.
Is formed of an elastic body that elastically deforms inward. In order to facilitate attachment and detachment of the seal packing 9 to and from the groove 10, as shown in FIG. 4B, there is provided a bulging portion 17 which is deformed so that the curtain plate wall 13 bulges upward facing a part of the groove 10. Groove 1 located on the lower surface of bulge 17
The pocket portion 18 communicating with the "0" is formed. Therefore,
By inserting a fingertip into the pocket portion 18, the seal packing 9 can be easily removed from the groove 10,
The seal packing 9 and the inner lid 8 can be individually washed.

Further, as shown in FIG. 4C, a valve body 19 is provided on the curtain plate wall 13 of the inner lid 8, and the curtain plate wall 1 is provided.
The column portion 19 a of the valve body 19 is fitted into the valve seat 20 provided on the base 3, and the valve membrane 19 b of the valve body 19 is brought into contact with the lower surface of the valve seat 20.

The lid 2 is formed by press-molding a thin metal plate such as aluminum. The lid 2 formed in an inverted dish shape has a peripheral wall 21 placed on the locked flange 12 a when covered with the inner lid 8, and has a lid wall 22 covering the upper part of the inner lid 8. ing.

The lock pieces 3, 3 extend from bearing pieces 24 provided on the peripheral wall 21 located on both sides of the lid 2, and are swingable facing both sides of the container 1. It is formed from a gate-shaped wire. That is, each lock piece 3
Shaft (not shown) supported by a pair of bearing pieces 24, 24
From the arms 25, 25 extending along the sides of the container 1.
And a rod portion 26 connecting the two arm portions 25, 25
A locking portion 27 that is curved in an arc shape is provided in the middle part of.

After the inner lid 8 is placed on the container 1, the lid 2 is covered with the inner lid 8, and the pair of lock pieces 3, 3 are rotated while pressing the lid 2, The locking portions 27 of the lock pieces 3, 3 are fitted and locked to the lower side of the locking recess 6a of the container 1.
At this time, the seal packing 9 elastically deforms to seal the opening edge 1b of the container 1 in a watertight and airtight manner.

Therefore, the food container can be suitably used as a lunch box, and since the container 1 is securely sealed by the inner lid 8, moisture and juice do not leak.

When opening the lunch box for a meal,
The locking pieces 3, 3 may be turned in a direction away from the container 1, and the locking portion 27 may be removed from the locking recess 6a, whereby the lid 2 can be released. When a negative pressure is generated inside the container 1 by cooling the stored food, the inner lid 8 is in close contact with the container 1. Therefore, when the column portion 19a of the valve body 19 is pressed, the valve membrane 19b moves, and outside air enters the upper container 5 through the insertion hole of the valve seat 20 through which the column portion 19a is inserted. Removal from the container 5 is facilitated.

[0034]

According to the first aspect of the present invention, the container 1 having the upper opening and the lid 2 for covering the opening are formed of a thin metal plate such as aluminum. When the sealing piece 9 is sealed through the seal packing 9,
In the food container provided with the attachment / detachment means 3, there is provided an inner lid 8 which is detachably interposed between the lid 1 and the container 1 and is clamped and fastened. And a peripheral groove wall 11 having a substantially U-shaped cross section in which a groove 10 for detachably storing the seal gasket 9 is formed, and the seal gasket 9 can be provided via the inner lid 8. Therefore, there is no need to form a groove in the container 1 or the lid 2, and it is possible to provide a food container having excellent sealing performance while maintaining the degree of freedom in the design of the outer appearance of the container 1 and the lid 2.

In particular, according to the present invention, the peripheral groove wall 11 of the inner lid 8 faces upward from the curtain plate wall 13.
Inner wall 11b which is bent to form the inner wall of the groove 10
And an outer peripheral wall 11a constituting an outer wall of the groove 10 as a curtain plate
The outer peripheral wall 11 of the peripheral groove wall 11 is raised above the wall 13.
a, a surrounding wall 12 surrounding the outer peripheral surface of the opening edge of the container is extended from the seal packing 9 to the outside, and the surrounding wall 12 is formed in a tapered shape so as to spread outward toward the lower end.
And, on the other hand, surrounded by the surrounding wall 12
And tilt inward so that the seal packing 9 is pressed.
Since the opening edge 5b (1b) that is inclined is provided in the container 1, the surrounding wall 12 functions as a guide when the inner lid 8 is covered with the opening of the container 1, and the opening edge of the container 1 is sealed with the seal packing 9. It can guide you towards, moreover, that the sealing gasket 9 is elastically deformed protrudes beyond the opening edge of the edge partially vessel 1 was blocked by the surrounding wall 12, further, the peripheral wall 21 of the lid 2 The surrounding wall 1 of the inner lid 8
2, so that the appearance is kept beautiful.

Furthermore, by extending the curtain plate wall 13 for closing the opening of the container 1 from the inner peripheral wall 11b, and around the Shumizokabe 11 between the curtain plate wall 13 and the lid 2 is surrounded in the circumferential groove wall 11
Of the chopstick 1
5, paper napkins, and other accessories can be suitably stored, and the inner lid 8 has the effect of two birds per stone.

According to the second aspect of the present invention, the circumferential groove wall 11 is bent upward from the curtain plate wall 13 so as to be forwardly bent.
An inner peripheral wall 11b constituting an inner wall of the groove 10;
And the outer peripheral wall 11a constituting the outer wall of
The peripheral groove wall 11 is formed by being raised,
A curtain plate wall 13 is provided with a bulging portion 17 which is deformed so as to expand upward facing an inner peripheral wall 11 b which constitutes a part of the groove 10. Because of the formed configuration, the inner lid 8
By inserting a fingertip into the pocket portion 18, the seal packing 9 can be easily taken out from the groove 10 while having the structure of reaching the seal of the container 1 , and the seal packing 9 and the inner lid 8 can be individually washed. There is an effect that can be.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a disassembled state of a first embodiment of the present invention.

FIG. 2 is a perspective view showing an assembled state of the first embodiment of the present invention.

3A and 3B show a first embodiment of the present invention, wherein FIG. 3A is a longitudinal sectional view showing an assembled and mounted state, FIG. 3B is a longitudinal sectional view showing a pocket portion of an inner lid, and FIG. It is a longitudinal cross-sectional view which shows the chopstick holding piece and valve body.

4A and 4B show a second embodiment of the present invention, wherein FIG. 4A is a longitudinal sectional view showing an assembled and mounted state, FIG. 4B is a longitudinal sectional view showing a pocket portion of a middle cover, and FIG. It is a longitudinal cross-sectional view which shows the valve body.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Container 2 Lid 3 Lock piece 4 Lower container 5 Upper container 6 Locking ear piece 6a Locking recess 7 Seal lid 8 Middle lid 9 Seal packing 10 Groove 11 Peripheral groove wall 11a Outer peripheral wall 11b Inner peripheral wall 12 Enclosure wall 13 Curtain plate wall 14 Accessory storage room 15 Chopsticks 27 Locking part

Claims (2)

(57) [Claims] 1. A container 1 having an upper opening, a detachable lid 2 for covering the opening, and a lock piece 3 extending from both sides of the lid and swinging opposite to the opening of the container. A food container comprising detachable means provided between both side portions of the container and each lock piece, wherein the food container is detachably interposed between the lid 2 and the container 1 and is clamped and fastened. The lid 8 has a peripheral groove wall 11 having a substantially U-shaped cross section in which a groove 10 is formed opposite to the opening edge of the container 1 and in which the seal packing 9 is removably accommodated, and the container is provided inside the peripheral groove wall 11. A curtain plate wall 13 for closing the opening is formed, and an accessory storage chamber 14 is formed between the curtain plate wall 13 and the lid 2. The peripheral groove wall 11 is bent upward from the curtain plate wall 13. Before
An inner peripheral wall 11b constituting an inner wall of the groove 10;
And an outer peripheral wall 11a which constitutes an outer wall of the container is raised above the curtain plate wall 13, and the surrounding wall 1 surrounding the outer peripheral surface of the opening edge of the container over the seal packing 9 from the outer peripheral wall 11a.
Together allowed to extend 2 downwards, and tapered so as to spread outwardly according reaching the lower end of the surrounding wall 12 formed
The container 1 is surrounded by the surrounding wall 12 and sealed.
Opening inclined inward so that the packing 9 is pressed.
The lid 2 is provided with a lip 5 b (1 b), and the lid 2 surrounds the surrounding wall 12 of the inner lid 8.
A food container comprising: 2. A container 1 having an upper opening, a detachable lid 2 for covering the opening, and a lock piece 3 extending from both sides of the lid and swinging opposite to the opening of the container. A food container comprising detachable means provided between both side portions of the container and each lock piece, wherein the food container is detachably interposed between the lid 2 and the container 1 and is clamped and fastened. The lid 8 has a peripheral groove wall 11 having a substantially U-shaped cross section in which a groove 10 is formed opposite to the opening edge of the container 1 and in which the seal packing 9 is removably accommodated, and the container is provided inside the peripheral groove wall 11. A curtain plate wall 13 that closes the opening is extended, and an accessory storage chamber 14 is formed between the curtain plate wall 13 and the lid 2. The peripheral groove wall 11 is bent upward from the curtain plate wall 13. Before
An inner peripheral wall 11b constituting an inner wall of the groove 10;
And the outer peripheral wall 11a constituting the outer wall of
The curtain plate wall 13 is formed by being raised.
But form a pocket portion 18 that communicates with the with the bulging portion 17 which is deformed so as to swell upward so as to face the peripheral wall 11b inside constituting the portion of the groove 10, the groove 10 located on the lower surface of the bulging ridge portion 17 A food container characterized by comprising: