JP2001080662A - Watertight container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a watertight container generating the leakage of a soup less than before. SOLUTION: A watertight container is provided with a body 1 formed of a flexible plastic and a cover 2 formed of a rigid plastic and closing the body 1 and the cover 2 by utilizing the elasticity of the body 1, and an inserting wall 22 is suspended along the peripheral edge of a top wall 21 of the cover 2, and a receiving channel 24 opened downward is formed continuously along the inner face side of the inserting wall 22 on the top wall 21, and a U-shaped fitting channel 13 into which the inserting wall 22 is inserted is formed on a rising wall 12 of the main body 1, and the inserting wall 22 is clamped by an inner wall 14 and an outer wall 15 of the fitting channel 13, and the upper section of the inner wall 14 is brought into contact with the inside of the receiving channel 24.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a watertight container having a body made of a soft plastic and a lid made of a hard plastic. There is a case to sell.

[0002]

2. Description of the Related Art A conventional watertight container in which a body is formed of a soft plastic and a lid is formed of a hard plastic is provided with a hanging wall along a peripheral portion of a top wall of the lid, and a hanging wall provided on an upper inside of a rising wall of the body. And the outer surface of the hanging wall is closely contacted with the inner surface of the rising wall to ensure watertightness.

However, in the conventional watertight container, since the lower end of the hanging wall is located at the intermediate height of the rising wall, when the container shakes or tilts, the juice collected at the bottom falls on the lower end of the hanging wall. It easily reached and penetrated between the upstanding walls and the hanging walls, which were closely connected, resulting in juice leakage.

[0004]

SUMMARY OF THE INVENTION The present invention has been developed in consideration of the above-mentioned circumstances.
An object of the present invention is to provide a watertight container in which juice leakage is less likely to occur than before.

[0005]

According to the first aspect of the present invention, the body is formed of a soft plastic, and the lid is formed of a hard plastic.
In a watertight container that seals the body and the lid by utilizing the elasticity of the body, the lid hangs down the fitting wall along the peripheral edge of the top wall, and the top wall has a receiving groove that opens downward, and the fitting groove is provided with a receiving groove. The fitting wall is provided continuously along the inside of the wall, and the body is provided with a fitting groove having a U-shaped cross section on which the fitting wall fits, on the rising wall, and the fitting wall is sandwiched between the inner wall and the outer wall of the fitting groove. In addition, the upper part of the inner wall is in close contact with the receiving groove.

The terms “inside” and “outside” are expressions that indicate a positional relationship with respect to the center of the container. Also, "The receiving groove,
"Continuously provided along the inside of the fitting wall" means that the upper part of the inner surface of the fitting wall is a part of the receiving groove.

[0007] Since the inner wall extends into the receiving groove provided in the ceiling wall, the sealing position is increased, and even if the container is slightly tilted, the juice collected at the bottom is stored in the upper end of the inner wall, that is, in the receiving groove. Will not reach. In addition, if the container is tilted with drops of juice attached to the back of the ceiling wall, the drops will reach the entrance of the receiving groove along the inclined back wall, but the receiving groove is open downward. So it falls naturally without getting inside the receiving groove. Furthermore, even if a drop of juice reaches the receiving groove due to any cause, the drop naturally falls along the inner surface of the inner wall because the upper portion of the inner wall is in close contact with the receiving groove.

According to a second aspect of the present invention, the receiving groove is formed in an inverted V-shape, and the outer side surface of the receiving groove is formed as an arc-shaped curved surface which is depressed outward, and is formed on the curved surface of the receiving groove. Correspondingly, the upper part of the outer surface of the inner wall is curved, and the upper part of the outer surface of the inner wall and the outer side surface of the receiving groove are in close contact.

Due to the inclination of the inner side surface of the receiving groove, the upper part of the inner surface of the inner wall does not come into contact with the inner side surface of the receiving groove.
The tightness between the upper outer surface of the inner wall and the outer side surface of the receiving groove can be more firmly maintained than the tightness between the lower outer surface of the inner wall and the lower inner surface of the fitting wall, and the seal at the position closest to the juice can be secured. .

According to a third aspect of the present invention, the inner side surface of the receiving groove is provided so as to be inclined downward and inward, and the upper inner surface of the inner wall is inclined corresponding to the inner side surface of the receiving groove.
It is characterized in that the upper part of the inner surface of the inner wall and the side surface inside the receiving groove are in close contact.

By inclining, it is possible to increase the force of pressing the inner wall against the fitting wall while ensuring the close contact between the upper portion of the inner surface of the inner wall and the inner side surface of the receiving groove. In addition, even if juice enters between the upper part of the inner surface of the inner wall and the inner side surface of the receiving groove, the juice naturally falls along the slope.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In a first embodiment of the watertight container of the present invention, as shown in FIG. 4, a hard plastic lid 2 is fitted into a soft plastic body 1 to maintain a watertight state.

As shown in FIG. 1, the lid 2 is formed so that the peripheral edge of the top wall 21 is formed stepwise high, and a fitting wall 22 is hung down along the circumferential direction at the center of the width of the peripheral edge. Has a protruding portion 23 protruding outward along the circumferential direction at an intermediate height position. The top wall 21 is opened downward along the upper inside of the fitting wall 22 by providing a stepped-up portion, that is, a portion immediately inside the portion where the fitting wall 22 is hung down and inclined outward and upward. A receiving groove 24 is formed. The upper portion of the inner surface of the fitting wall 22 is
The outer side.

The body 1 is provided with a rising wall 12 along the peripheral edge of the bottom wall 11, as shown in FIG. As shown in FIG. 1, a fitting groove 13 having a U-shaped cross section for receiving the fitting wall 22 is formed.
It is provided continuously on the rising wall 12. Fitting groove 13
The inner wall 14 extending above the rising wall 12 and the outer wall 1
5 and a connecting wall 16 connecting the lower part of the inner wall 14 and the lower part of the outer wall 15.

The outer wall 15 is formed on the inner surface at the intermediate height position with a concave portion 17 in which the convex portion 23 is fitted along the circumferential direction. Since the thickness of the concave portion 17 is thin, the upper side of the concave portion 17 is It can be detached, so that you can check whether it is new or opened. In addition, as shown in FIG. 6, an L-shaped notch 18 is formed in a part of the upper side of the outer wall 15 so as to facilitate separation at the time of opening.
7, a pair of protrusions 19, 19, which are provided to extend short along the opening and are pinched when opening, are provided on both sides in the circumferential direction with the notch 18 interposed therebetween, and one protrusion 19 is provided above the outer wall 15. The other protruding piece 19 is provided on the lower side (see FIGS. 4 and 5).
The state where the lid 2 is closed by the fitting of the concave portion 17 and the convex portion 23 is maintained.

As shown in FIG. 1, the inner wall 14 is inclined similarly to the receiving groove 24 so that the upper portion of the inner surface is in close contact with the inner side surface of the receiving groove 24.

A second embodiment of the watertight container of the present invention is shown in FIG.
As shown in FIG. 5, the receiving groove 24 is formed in an inverted V-shape, and the outer side surface of the receiving groove 24 is formed in a curved surface cut out in an arc shape. The upper portion of the outer surface of the inner wall 14 is curved, and the outer side surface of the receiving groove 24 and the upper portion of the outer surface of the inner wall 14 are brought into close contact by the elasticity of the inner wall 14. Note that the inner surface of the inner wall 14 is the receiving groove 2
4 extends linearly toward the center of the width.

In the third embodiment of the watertight container of the present invention, the outer side surface of the receiving groove 24 and the upper outer surface of the inner wall 14 are in close contact with each other. In order to make the inner surface of the
The upper part of the inner wall 14 is inclined in accordance with the degree of curvature of the outer side surface of the inner wall 14, and the upper part of the inner surface of the inner wall 14 is inclined in accordance with the degree of inclination of the inner side surface of the receiving groove 24. I do.

In the above-described watertight container, the body 1 of the soft plastic product has flexibility and resilience, and specific materials such as polypropylene, polyamide, and polyethylene are used. Particularly, polypropylene is not only excellent in heat resistance, water resistance and chemical resistance, but also relatively transparent, so that it is most suitable as a body material. The lid 2 of the hard plastic product is hard and hardly deforms, and uses a material having excellent transparency and gloss such as polystyrene and polycarbonate as a specific material, so that the food inside can be clearly seen from above. Become.

The above-described watertight container is provided with the concave portion 1 of the outer wall 15.
7, the lower part of the outer wall 15 and the inner wall 1
4, the fitting wall 22 is sandwiched, and since the upper part of the inner wall 14 is in close contact with the receiving groove 24, high sealing performance can be maintained.

[0021]

According to the first aspect of the present invention, since the upper portion of the inner wall is in close contact with the receiving groove of the top wall, the sealing position is high, and the top surface of the top wall is inclined with a drop attached to the back surface. Drops will naturally fall without entering the receiving groove,
Juice hardly penetrates between the fitting wall and the fitting groove, so that juice leakage hardly occurs as compared with the related art.

According to the second aspect of the present invention, by curving, the upper portion of the outer surface of the inner wall and the outer side surface of the receiving groove can be surely brought into close contact with each other, and juice leakage is further reduced.

According to the third aspect of the present invention, by inclining, the close contact force between the upper portion of the inner surface of the inner wall and the inner side surface of the receiving groove can be increased. Even if juice enters between the sides, the juice naturally falls along the slope, and as a result, juice leakage is extremely unlikely to occur.

[Brief description of the drawings]

FIG. 1 is an end view of a section taken along line AA of FIG.
1 shows a main part of a first embodiment of a watertight container of the present invention.

FIGS. 2A and 2B are longitudinal end views showing a main part of a second embodiment of the watertight container of the present invention.

FIGS. 3A and 3B are longitudinal end views showing a main part of a third embodiment of the watertight container of the present invention.

FIG. 4 is a partially cutaway plan view showing the entirety of the first embodiment of the watertight container of the present invention.

FIG. 5 is a sectional view taken along line BB of FIG. 4;

FIG. 6 is a side view of a main part of the body showing an arrangement relationship of a pair of projecting pieces.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Body 2 Lid 12 Rise wall 13 Fitting groove 14 Inner wall 15 Outer wall 21 Top wall 22 Fitting wall 24 Receiving groove

Claims (3)

[Claims] 1. A watertight container in which the body (1) is formed of a soft plastic and the lid (2) is formed of a hard plastic, and the body (1) and the lid (2) are hermetically sealed by utilizing the elasticity of the body (1). In (2), the lid (2) is fitted along the periphery of the top wall (21).
2), a receiving groove (24) that opens downward is continuously formed along the inside of the fitting wall (22) in the top wall (21), and the body (1) is attached to the fitting wall (22). A fitting groove (13) having a U-shaped cross section into which the fitting groove (22) fits is provided on the rising wall (12), and the inner wall (14) and the outer wall (15) of the fitting groove (13) are fitted into the fitting wall (2).
2) A watertight container, wherein the container holds the upper part of the inner wall (14) and the upper part of the inner wall (14) is in close contact with the receiving groove (24). 2. The receiving groove (24) is formed in an inverted V-shape, and the outer side surface of the receiving groove (24) is formed in an arc-shaped curved surface that is depressed outward.
The upper part of the outer surface of the inner wall (14) is curved corresponding to the curved surface of
The watertight container according to claim 1, characterized in that the upper part of the outer surface of the inner wall (14) and the outer side surface of the receiving groove (24) are in close contact. 3. An inner side surface of the receiving groove (24) is provided so as to be inclined downward and inward, and an upper part of the inner surface of the inner wall (14) is inclined corresponding to the inner side surface of the receiving groove (24). The watertight container according to claim 1 or 2, wherein an upper portion of an inner surface of the inner wall (14) and a side surface inside the receiving groove (24) are in close contact with each other.