JPH09154617A - Food vessel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a food vessel with excellent sealing performance, by eliminating groove formation on a vessel or a lid body by equipping an inner lid detachably held and fastened between the lid body and the vessel and forming a groove detachably containing a seal packing on the inner lid. SOLUTION: This food vessel can be used as a lunch box and has a vessel 1, a lid body 2 and lock pieces 3 and 3, and an inner lid 8 between the vessel 1 and the lid body 2. The inner lid 8 is made of synthetic resin formed in a unit body and has a periphery groove wall 11 with an almost U-shaped cross section, on which a groove 10 to detachably contain a seal packing 9 is formed. A frieze board wall 13 to close an opening part 1a of the vessel 1 is extended from the inner periphery wall 11b of the periphery groove wall 11 and an attachment container room 14 for such as chopsticks is formed thereon. Thus, by covering the inner lid 8 to the vessel 1 and engaging parts 27 of the lock pieces 3 and 3 to the underside of an engaging dent 6a, an opening rim 1b of the vessel is water- and air-tightly sealed.

Description

Detailed Description of the Invention

[0001]

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

[0002]

2. Description of the Related Art A lunch box made of aluminum has been conventionally known. Such a lunch box has a container having an upper opening made of an aluminum thin plate, a lid made of a removable aluminum thin plate for covering the opening, and a container extending from both sides of the lid and facing both sides of the container. And a rocking piece capable of swinging, and attaching / detaching means is provided between both side portions of the container and each lock piece.

By the way, it is known that a conventional lunch box is provided with a seal packing for hermetically sealing. However, since a thin aluminum plate is press-molded, a groove is formed in a lid body for accommodating the seal packing. Then, there is a problem in that the outer surface of the lid body has irregularities corresponding to the grooves, and the external design is restricted.

Further, since the conventional bento box cannot store accessories such as chopsticks, it is inconvenient to separately prepare a chopstick box.

[0005]

SUMMARY OF THE INVENTION The present invention is a lunch box made of a thin metal plate such as aluminum, but it is possible to provide a seal packing without being restricted by the external design, and at the same time, for a chopstick or the like. There is a problem in making it possible to store accessories.

[0006]

In order to solve the above-mentioned problems, the present invention has an inner lid interposed between a lid and a container, and enables the seal packing to be mounted through this inner lid. In addition, the feature is that accessories such as chopsticks can be stored.

Therefore, the first aspect of the present invention is that a container having an upper opening made of a thin metal plate, a removable lid for covering the opening, and extending from both sides of the lid. In a food container comprising lock pieces which are swingable so as to oppose both sides of the container, and which is provided with attaching / detaching means between both sides of the container and each lock piece, the attaching / detaching between the lid and the container An inner lid, which is freely interposed and clamped and fastened, is provided with a circumferential groove wall having a substantially inverted U-shaped cross section, which has a groove facing the opening edge of the container to detachably accommodate the seal packing. A surrounding wall that surrounds the outer peripheral surface of the opening edge of the container extends from the outer circumferential wall of the circumferential groove wall, and a curtain plate wall that closes the opening of the container extends from the inner circumferential wall of the circumferential groove wall. The point is that an accessory storage chamber is formed between the lids.

According to the second aspect of the present invention, a lunch box is provided in which a retaining piece is provided so that the curtain wall of the inner lid projects into the accessory storage chamber, and the retaining piece retains chopsticks. The point is that it consists of.

[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 is a container 1 and an opening of the container 1 is covered. And a lock piece 3 for locking the lid body 2 to the container 1 in a detachable manner.

The container 1 is formed by detachably stacking a plurality of stages of divided containers consisting of a lower container 4 and an upper container 5, and both containers 4 and 5 are formed by press-molding a thin metal plate such as aluminum. It is formed by.

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

A seal lid 7 is interposed between the lower container 4 and the upper container 5, and the seal lid 7 is provided in the opening 4 of the lower container 4.
In addition to having a closing portion 7a that is fitted in a to close the opening 4a in a water-tight and air-tight manner, a flange portion 7b that covers the opening edge of the lower container 4 is further provided, and a throttle bottom portion 5c of the upper container 5 is fitted. It is provided with a concavity 7c to be pressed, and is wholly integrally molded from 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 body 2. The inner lid 8 is integrally molded of synthetic resin and, as shown in FIGS. 1 and 3, the opening edge 5 of the upper container 5.
A cross section U having a groove 10 formed opposite to b for accommodating the seal packing 9 made of a separate elastic body in a detachable manner
A peripheral groove wall 11 having a shape, and an outer peripheral wall 1 of the peripheral groove wall 11
A surrounding wall 12 surrounding the outer peripheral surface of the opening edge 5b from 1a.
And extending a curtain plate wall 13 that closes the opening 5a of the upper container 5 from the inner peripheral wall 11b of the peripheral groove wall 11 to form an accessory storage chamber 14 between the curtain plate wall 13 and the lid 2. doing. That is, the curtain plate wall 13 is positioned lower than the top of the circumferential groove wall 11 and is substantially flush with the opening 5 a of the upper container 5.

In this embodiment, the accessory storage chamber 1
1 and 3C, in order to store the chopsticks 15 in the chopstick 4, the curtain plate wall 13 of the inner lid 8 is extended with a holding piece 16 protruding into the accessory storage chamber 14. Holds the chopsticks 15.

The seal packing 9 constitutes an annular body which is 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 is elastically deformed toward the inside of the groove 10 when it is pressure-bonded to the opening edge 5b of the upper container 5. In order to facilitate the attachment / detachment of the seal packing 9 to / from the groove 10, as shown in FIG. 3 (B), the curtain plate wall 13 is provided with a bulging portion 17 which is deformed so as to bulge upward, facing a part of the groove 10. A pocket portion 18 is formed on the lower surface of the bulge 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 washed individually.

Further, as shown in FIG. 3 (C), a valve disc 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 19a of the valve body 19 is fitted into the valve seat 20 provided on the valve 3, and the valve membrane 19b of the valve body 19 is brought into contact with the lower surface of the valve seat 20.

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

The lock pieces 3 and 3 are extended from bearing pieces 24 provided on the peripheral walls 21 located on both sides of the lid body 2 and can be rocked so as to face both sides of the container 1. It is formed from a gate-shaped wire. That is, each lock piece 3
A shaft portion (not shown) pivotally supported by the pair of bearing pieces 24, 24.
To the upper container 5, and arm portions 25 and 25 extending beyond the upper container 5, and a locking portion 27 curved in an arc shape in the middle of the rod portion 26 connecting the both arm portions 25 and 25.

Then, after stacking the upper container 5 on the lower container 4 via the seal lid 7 and placing the inner lid 8 on the upper container 5, the inner lid 8 is capped with the lid body 2 and the lid is closed. When the pair of lock pieces 3 and 3 is rotated while pressing the body 2, the locking portions 27 of the lock pieces 3 and 3 are fitted and locked to the lower side of the locking ear pieces 6 of the lower container 4. At this time, as shown in FIG. 3A, the seal packing 9 is elastically deformed to seal the opening edge 5b of the upper container 5 in a watertight and airtight manner. The accessory storage chamber 14 stores chopsticks 15. The surrounding wall 12 has an opening edge 5b of the upper container 5 when the inner lid 8 is capped on the upper container 5.
Function as a guide for guiding the seal packing 9 to the seal packing 9, and when the lock 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 causes the opening edge 5b. It functions as a holding material that prevents it from protruding outside.

Therefore, the food container can be suitably used as a lunch box, in which case rice can be stored in the lower container 4 and side dishes can be stored in the upper container 5. Since the upper container 5 is reliably sealed by the inner lid 8, water and juice will not leak.

When opening the lunch box and serving for meals,
The lock pieces 3 and 3 may be rotated 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 body 2 can be released. In the upper container 5, when the stored side dish is cooled and a negative pressure is generated inside, the inner lid 8 is in close contact. Therefore, the pillar portion 1 of the valve body 19
When 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 through which the pillar portion 19a is inserted. Therefore, the inner lid 8 can be easily removed from the upper container 5. Become. In addition, the upper container 5 is provided with the recess 7c of the seal lid 7.
By removing the seal lid 7 from the opening 4a of the lower container 4, the multi-stage container can be disassembled like a conventional lunch box.

(Second Embodiment) FIG. 4 shows a second embodiment of the present invention in which the food container is embodied as a lunch box, and the container 1 and the opening of the container 1 are covered. Lid 2
And lock pieces 3 for fixing the lid body 2 to the container 1 in a detachable manner, and an inner lid 8 is interposed between the container 1 and the lid body 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 portion, and has a narrowing in which the opening edge 1b of the opening 1a is inclined inward. The container 1 has a locking recess 6a formed by bending the bottom and the peripheral wall inward at both sides of the container 1.

The inner lid 8 is integrally molded of synthetic resin and has a groove 10 facing the opening edge 1b of the container 1 and having a groove 10 for detachably accommodating a seal packing 9 made of a separate elastic body. A U-shaped peripheral groove wall 11 is provided, and an enclosing wall 12 that surrounds the outer peripheral surface of the opening edge 1b extends from the outer peripheral wall 11a of the peripheral groove wall 11, and from the inner peripheral wall 11b of the peripheral groove wall 11. A curtain plate wall 13 that closes the opening 1a of the container 1 is extended, and an accessory storage chamber 14 is formed between the curtain plate wall 13 and the lid 2. That is, the curtain wall 13 is the circumferential groove wall 11
Located lower than the top of the. Therefore, accessory storage room 1
4, a paper napkin or other flat accessory can be stored.

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

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

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

The lid 2 is formed by pressing a metal thin plate such as aluminum. The inverted dish-shaped lid body 2 includes a peripheral wall 21 that is placed on the locked flange 12a when covered with the inner lid 8, and a lid wall 22 that covers the upper portion of the inner lid 8. ing.

The lock pieces 3 and 3 are extended from bearing pieces 24 provided on the peripheral walls 21 located on both sides of the lid body 2 and can be rocked so as to face both sides of the container 1. It is formed from a gate-shaped wire. That is, each lock piece 3
A shaft portion (not shown) pivotally supported by the pair of bearing pieces 24, 24.
From the arm portions 25, 25 extending along the side portion of the container 1.
And a rod portion 26 for connecting both arm portions 25, 25.
An engaging portion 27 that is curved in an arc shape is provided in the middle portion.

Then, after the inner lid 8 is placed on the container 1, the lid 2 is capped on the inner lid 8 and the pair of lock pieces 3, 3 is rotated while pressing the lid 2, The locking portions 27 of the lock pieces 3 and 3 are fitted and locked to the lower side of the locking recess 6 a of the container 1.
At this time, the seal packing 9 is elastically deformed 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 reliably sealed by the inner lid 8, moisture and juice will not leak.

When opening the lunch box and serving for meals,
The lock pieces 3 and 3 may be rotated 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 pillar portion 19a of the valve body 19 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 portion 19a is inserted. It becomes easy to remove from the container 5.

[0034]

According to the present invention as set forth in claim 1, 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, and the lid 2 is formed. The lock piece 3, which is used when sealing is performed via the seal packing 9,
In the food container provided with the attaching / detaching means according to 3, an inner lid 8 which is detachably interposed between the lid body 1 and the container 1 and which is clamped and clamped is provided, and the inner lid 8 has an opening edge of the container 1. Is provided with a peripheral groove wall 11 having a substantially inverted U-shaped cross section in which a groove 10 is formed so as to removably accommodate the seal packing 9, and the seal packing 9 can be provided via the inner lid 8. Therefore, it is possible to provide a food container having an excellent sealing property while maintaining the freedom of external design of the container 1 and the lid 2 without forming a groove in the container 1 or the lid 2.

Since the inner lid 8 has a structure in which the surrounding wall 12 surrounding the outer peripheral surface of the opening edge of the container 1 is extended from the outer peripheral wall 11a of the circumferential groove wall 11, the inner lid 8 is covered with the container. The surrounding wall 12 functions as a guide to cover the opening of the container 1 and can guide the opening edge of the container 1 toward the seal packing 9, and the elastically deformed seal packing 9 partially covers the container 1. The surrounding wall 12 prevents the film from protruding beyond the edge of the opening edge, and the appearance is maintained.

Further, a curtain plate wall 13 for closing the opening of the container 1 is extended 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. Because of the constitution, the chopsticks 15, the paper napkin, and other accessories can be suitably stored, and the inner lid 8 has the effect of one bird and two birds.

According to the present invention as set forth in claim 2,
Since the curtain plate wall 13 of the inner lid 8 extends the holding piece 16 projecting into the accessory storage chamber 14, and the holding piece 16 can provide a lunch box holding the chopsticks 15, a chopstick box or the like is required separately. Instead, it has the effect of being compactly portable.

[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 and mounted state of the first embodiment of the present invention.

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

4A and 4B show a second embodiment of the present invention, in which FIG. 4A is a vertical sectional view showing an assembled and mounted state, FIG. 4B is a vertical sectional view showing a pocket portion of the inner lid, and FIG. 3 is a vertical cross-sectional view showing the valve body of FIG.

[Explanation 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 Inner Lid 9 Seal Packing 10 Groove 11 Circumferential Groove Wall 11a Outer Wall 11b Inner Wall 12 Envelope Wall 13 Curtain Wall 14 accessory storage room 15 chopsticks 27 locking part

Claims (2)

[Claims] 1. A container having an upper opening made of a thin metal plate, a detachable lid for covering the opening, and a lock extending from both sides of the lid and swingable so as to face both sides of the container. A food container comprising a piece and a detaching means provided between both side portions of the container and each lock piece, wherein an inner lid that is detachably interposed between the lid and the container and is clamped and clamped. Is provided with a peripheral groove wall having a substantially U-shaped cross section in which a groove is formed facing the opening edge of the container to detachably accommodate the seal packing, and the peripheral groove wall has an outer peripheral wall of the peripheral groove wall to the outer periphery of the opening edge of the container. A surrounding wall that surrounds the surface is extended, and a curtain wall that closes the container opening is extended from the inner circumferential wall of the circumferential groove wall, and an accessory storage chamber is formed between the curtain wall and the lid. A food container characterized by being made. 2. A lunch box in which a curtain plate of the inner lid extends a projecting piece into the accessory storage chamber, and chopsticks are held by the holding piece. The described food container.