JPS5829935Y2 - sealed container - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to bento boxes, side dish containers, and other sealed containers suitable for preserving food.

This type of container maintains airtightness by tightening the container body and lid to isolate it from the outside air, but if you seal it with hot items inside, the internal pressure of the container body will decrease when the contents want to cool down. There were many cases where the lid would not open even after the tightening was released.

The purpose of the present invention is to provide a sealed container that does not cause the above-mentioned problems, and examples thereof will be described below with reference to the drawings.

1 is a box-shaped container that can be made of synthetic resin or ceramic and has an arbitrary shape such as a square or circular flat surface; 2 is a lid made of synthetic resin that closes the opening of the container 1; and 3 is two opposite sides of the lid 2. Alternatively, the bearing part 4 is integrally molded and extends along the edges corresponding to the four opposite sides, and the hook provided on the bearing part 3 is made of metal, and both ends of a metal rod with a diameter of about 3 mm are bent inward to the opposite side. The two ends 41 and 41 are molded into the bearing hole 31.
It is installed so that it can be moved up and down.

Reference numeral 5 denotes an overhang portion for hanging the hook 4, which is integrally molded on the edges corresponding to two opposing sides or four opposing sides of the container body 1.

Reference numeral 6 indicates an endless protrusion formed on the inner surface of the lid 2 so as to fit internally into the opening of the container body. Reference numeral 7 indicates an endless groove formed along the outer periphery of the endless protrusion 6. An elastic packing 8 made of synthetic resin or the like is accommodated.

Reference numeral 9 denotes a ventilation groove formed in the concave groove of the part on which the clamping force of the hook 4 acts the most, communicating the inside and outside of the container body.

In the case of FIGS. 3 to 7, the ventilation groove 9 is formed into a gate shape so as to intersect with the groove 7, and the groove bottom 7 is formed in the middle of the horizontal side part 91.
The ventilation inhibiting part 10, which is slightly lower than 1, is integrated.

The ventilation groove has a width W of 0.5 to 2.0 mm, preferably 0.8 mm, and a depth t of 0.5 to 2.0, preferably 0.
．． Set to 5 to 1.0 mm.

Further, the ventilation inhibiting portion 10 has a wall thickness d = 0.5 to 1.5.
Preferably, the height h is 0.5 mm, and the height h can be set to be about 0.25 to Q5 mm lower than the groove bottom surface 71, and a curved surface is formed along the ventilation direction.

Further, the planar shape of the ventilation groove 9 may be linear as shown in FIG. 5-6, or may be bent into an S-shape or a double-shape as shown in FIGS. 8 and 9.

FIG. 10 shows a case in which the ventilation groove 9 is formed halfway down the horizontal side portion 91 of the concave groove, and a ventilation hole 90 that reaches the outer surface of the lid passes through the ventilation inhibiting portion 10.

In the figure, reference numeral 11 denotes a protrusion provided on the edge of the opening of the container, which faces the gasket 8 in order to increase airtightness when the lid is closed.

Since the present invention has the above-mentioned configuration, the lid 2 is closed and the hook is 4.
When applied, the packing 8 is compressively deformed by the tightening force and seals the opening of the container body.

At this time, the ventilation groove 9 is also pressed against the surface of the ventilation inhibiting portion 10 due to the compression of the packing 8, so that ventilation inside and outside the container body is completely blocked.

Therefore, the container body 1 is kept airtight, and the moisture inside does not leak to the outside.

Furthermore, since the ventilation groove is provided at a location where the clamping force of the latch 4 is greatest, the watertight effect is further enhanced.

When the hook 4 is released, even if the inside of the container is under reduced pressure, the gasket 8 immediately separates from the ventilation inhibiting part 10 due to its elastic restoring force, ensuring a ventilation gap and allowing communication between the inside and outside of the container. Since the air pressure becomes equal, the lid 2 can be opened easily.

Furthermore, since the ventilation groove 9 is a narrow groove, it is closed by the compression of the gasket 8 when the lid is closed, and moreover, the ventilation inhibiting portion 1
0 is formed only slightly lower than the concave groove 7, so that the pressure contact with the packing 8 is reliable.

By making the ventilation direction surface of the ventilation inhibiting portion 10 into a curved surface 101, the air circulation through the narrow ventilation grooves 9 becomes even more effective.

As described above, the sealed container of the present invention can be used as a lunch box, side dish, etc. even if you put hot food in it and put the lid on it immediately, you will not have to worry about the lid not opening when you take it off later. Implementation has practical effects.

[Brief explanation of the drawing]

Fig. 1 is a partially omitted plan view of the lid of the sealed container according to the present invention, Fig. 2 is a side view of the right half section taken along line 2-2 in Fig. 1, and Fig. 3 is A vertical sectional view showing the right half along line 33 in Fig. 2, Fig. 4 is an inner view of the lid, Fig. 5 is an enlarged view showing a part of Fig. 4, and Fig. 6 is a view of Fig. 5. A sectional view taken along the line 6-6, FIG. 7 is an enlarged view of a part of FIG. 6, and FIGS.
10 is a plan view showing a modification of the ventilation groove shown in FIG. 5, and FIG. 10 is a sectional view showing a modification of the ventilation groove shown in FIG. 6. 1... Container body, 2... Lid, 3...
...Bearing part, 4...The hook is metal, 5...The hook is the metal receiver, 6...Endless protrusion, 7...
・Endless groove, 8...Elastic packing, 9...
... Ventilation groove, 10... Ventilation inhibiting part.

Claims (1)

[Scope of utility model registration request] A bearing part protruding along the opposite sides of the lid that closes the opening of the box-shaped container body is integrally molded, and a hook with both ends bent inwardly is rotatably attached to the hole of the bearing part. For the hook, an overhang part for hanging the metal is integrally molded on the edge corresponding to the opposite side of the container body, and an endless protrusion that fits inside the container opening is molded on the inner surface of the lid, and the endless protrusion is formed on the inner surface of the lid. In addition to forming an endless groove on the outer periphery to accommodate the packing, the hanger forms a ventilation groove that communicates between the inside and outside of the container body in the groove where the clamping force of the metal is most exerted. A ventilation inhibiting part is provided on the lateral side, which is slightly lower than the top surface of the concave groove, so that the ventilation groove is blocked by the compressed and deformed gasket when the metal is tightened, and when the metal is loosened, the gasket is restored and communicates with the ventilation groove. A sealed container configured as follows.