JPH1059501A - Cover for sealed container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cover for sealed container which can attain easy opening and closing and manufacture at a low cost. SOLUTION: A sealing cover 13 is fitted at the opening part 11a of a bottomed cylindrical container body 11 so as to be detachable. The sealing cover 13 is formed by combining a lower covering element 14 having a fitting part 14a to be fitted on the opening part a of the container body 11 and an upper covering element 15 having a skirt part 15a for covering the upper end of the opening part 11a of the container body 11 each other. A packing 17 to be jointed to the inner periphery of the opening part 11a of the container body 11 is attached onto the outer periphery of the fitting part 14a of the lower covering element 14. A storage space 22 for desiccant or the like is formed between the lower covering element 14 and the upper covering element 15. A communicating hole 23 for communicating the storage space 22 with the inside of the container body 11 is formed at the bottom wall of the lower covering element 14.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lid of a sealed container used for storing foods and the like that need to be kept in a dry state.

[0002]

2. Description of the Related Art In a conventional sealed container of this type, a screw-type, buckle-type or ring-packing type sealing lid is removably hermetically attached to an opening of a bottomed cylindrical container body. ing. In particular, a ring packing type closed lid has a simple structure and can be easily opened and closed. Therefore, it is widely used for containers used in kitchens of ordinary households.

[0003] The conventional ring-packing-type hermetic lid is made of a synthetic resin material such that it has a fitting portion fitted into the opening of the container main body and a flange portion covering the upper edge of the opening of the container main body. Thereby, it is integrally formed in a thin flat plate shape.
Then, packing is attached to the outer periphery of the fitting portion of the sealing lid, and when the sealing lid is fitted to the opening of the container body,
This packing is joined to the inner peripheral surface of the opening of the container body, so that the inside of the container body is sealed.

[0004]

However, this conventional sealing lid is integrally formed of a synthetic resin material into a thin flat plate as described above. For this reason, the thickness of the fitting portion is insufficient, the sealing degree is reduced, and the thickness of the flange portion, that is, the protruding amount of the sealing lid is insufficient, so that the portion to be fingered is narrow, and the sealing lid is There is a problem that it is difficult to open the door.

[0005] In order to cope with such a problem, it is conceivable to integrally form the sealing lid into a thick flat plate using a synthetic resin material. However, in the case of such a configuration, the number of materials used is increased and the molding cycle is extended, so that not only the production cost is increased, but also a new problem is caused in that the molding surface is prone to sink and deform.

Further, on the outer peripheral surface of the sealing lid, features such as a groove for holding the packing and a skirt portion for covering the opening of the container body are provided. If the skirt is curved in order to make the sealing lid bulge, the direction in which the mold is removed differs between the skirt and the groove, which requires a complicated and expensive mold.

The present invention has been made by paying attention to such problems existing in the prior art. It is an object of the present invention to provide a lid for a sealed container which can solve the above-mentioned problems.

[0008]

In order to achieve the above object, according to the first aspect of the present invention, there is provided a lower lid having an opening at an upper surface having a fitting portion for fitting into an opening of a container body; An upper lid having an open lower surface is assembled with each other, and a packing is attached to the outer periphery of the fitting portion of the lower lid so as to be joined to the inner peripheral surface of the opening of the container body. A storage space for storing a desiccant or the like is formed between them, and a communication hole for communicating the storage space with the inside of the container body is formed on the bottom wall of the lower lid body, and the lower lid body and The upper lid was removably assembled by engagement of screw portions formed on the peripheral surfaces thereof.

According to a second aspect of the present invention, in the first aspect, a groove for fitting a packing is formed on the outer periphery of the lower end of the lower lid, and the skirt covers the opening of the container body on the outer periphery of the upper lid. Part was provided.

In the first aspect, the lid is formed separately for the lower lid and the upper lid, and sink is hardly generated. Furthermore, since the length of the skirt portion can be sufficiently ensured, the skirt portion can be easily gripped. Moreover, a storage space is formed between the lower lid and the upper lid, and a communication hole is formed in the bottom wall of the lower lid. Therefore, a desiccant or the like can be easily stored by using the storage space, and the desiccant can keep an object such as food stored in the container main body in a dry state. Also, the lower lid and the upper lid of the hermetic lid, by engaging or disengaging the screw portion,
Can be easily assembled or separated. Therefore, the desiccant and the like can be easily detached and replaced in the storage space between the lower lid and the upper lid.

According to the second aspect, the skirt portion and the annular projection for packing are provided on different lids, respectively, so that the die does not become complicated.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the lid of a closed container according to the present invention will be described below with reference to the drawings. As shown in FIGS. 1 and 2, the container body 11 is formed of a transparent synthetic resin material or glass into a closed-end cylindrical shape, and has an upper end opening 1.
A flange 12 protrudes from the outer periphery of 1a.

The sealing lid 13 is provided with an opening 11a of the container body 11.
, So that the inside of the container body 11 is kept in a sealed state. The sealing lid 13 is the lower lid 1
4 and the upper lid 15 are assembled to each other.

As shown in FIG. 2 to FIG.
Reference numeral 4 denotes a synthetic resin material, which is formed in a short cylindrical shape with a bottom and an upper surface, and has a fitting portion 14a for fitting to the opening 11a of the container body 11. A pair of annular projections 24
Is formed on the outer periphery of the lower end of the fitting portion 14a of the lower lid 14,
A mounting groove 16 is formed between them. A flat ring-shaped packing 17 made of an elastic material such as silicon is mounted in the mounting groove 16. The packing 17 is joined to the inner peripheral surface of the opening 11a of the container body 11, so that the inside of the container body 11 is kept in a sealed state.

A flange 18 is formed on the outer periphery of the center of the lower lid 14 so as to project in the same direction as the annular projection 24.
When the fitting portion 14 a of the fourth body 4 is fitted into the opening 11 a of the container body 11, the flange 18 is joined to the upper surface of the flange 12 of the container body 11. The thread portions 19 of the four ridges are formed on the outer peripheral surface of the lower lid 14 at predetermined intervals in the circumferential direction in the same direction as the flange 18 so as to be located above the flange 18, and the lower surfaces thereof are formed. An inclined surface 19a is formed.

As shown in FIGS. 2, 5 and 6, the upper lid 15 is formed in a substantially closed short cylindrical shape having an open lower surface, and is joined to the upper surface of the flange 12 of the container body 11 to open the lower lid. Skirt portion 15a for covering the upper edge of portion 11a
have. The skirt portion 15a is formed to be curved in an arc shape. The cylindrical portion 20 is formed concentrically on the lower surface of the upper wall of the upper lid 15, and the lower end thereof is engaged with the flange 18 of the upper lid 15. The thread portions 21 of the two ridges are formed at predetermined intervals in the circumferential direction on the inner peripheral surface of the cylinder upper portion 20, and an inclined surface 21 a is formed on the upper surface thereof.

Then, when assembling the upper lid 15 and the lower lid 14, as shown in FIG. 4, after inserting the screw portion 21 of the upper lid 15 between the screw portions 19 of the lower lid 14. Then, the upper lid 15 is rotated clockwise relative to the lower lid 14. Then, as shown in FIG.
The upper and lower lids 15 and 14 are assembled and fixed to each other, with the inclined surfaces 21a and 19a of the first and first 19 being engaged with each other.

When the upper lid 15 and the lower lid 14 are separated from the assembled state, the upper lid 15 is moved counterclockwise with respect to the lower lid 14 in substantially the reverse order of the above-mentioned assembly. When they are relatively rotated, the two screw portions 21 and 19 are released from the engaged state. And the screw part 2 of the upper lid 15
1 is located between the screw portions 19 of the lower lid 14,
By moving in the axial direction, the upper cover 15 can be removed from the lower cover 14.

The thickness of each part of the lower lid 14 and the upper lid 15 is substantially constant. As shown in FIGS. 2 and 4, the storage space 22 is formed between the lower cover 14 and the upper cover 15, and stores a desiccant or the like therein. The plurality of communication holes 23 are formed in the bottom wall of the lower lid 14, and the storage space 22 is formed through these communication holes 23.
Is communicated with the inside of the container body 11.

Now, when using this sealed container,
The hermetic lid 13 is removed from the upper end opening 11a of the container body 11, and an object such as food is accommodated in the container body 11. In this state, when the sealing lid 13 is fitted into the opening 11a of the container body 11, the packing 17 is elastically deformed as shown in FIG.
a to the inner peripheral surface. Thereby, the inside of the container main body 11 is held in a sealed state.

When the hermetic lid 13 is to be removed from the opening 11a of the container body 11 with the container body 11 hermetically sealed, a finger is put on the skirt portion 15a of the upper lid body 15,
Lift a part of the sealing lid 13. Then, the sealing lid 13 is tilted, and the inside of the container body 11 is released from the sealed state. Thereby, the sealing lid 13 can be easily removed from the opening 11a of the container body 11.

As described above, when the hermetic lid 13 is attached and detached, the upper lid 15 is formed to have a predetermined thickness, so that the skirt portion 15a is securely grasped and the hermetic lid 13 is easily detached. Can be opened and closed.

Furthermore, if a desiccant or the like is stored in the storage space 22 between the lower lid 14 and the upper lid 15 in advance, the drying effect of the desiccant will be reduced. Through the communication hole 23 to the inside of the container body 11.
Therefore, an object to be contained, such as food, contained in the container body 11 can be kept in a dry state. Since the cylindrical portion 20 of the upper lid 15 is engaged with the flange 18 of the lower lid 14, the contact between the inside of the storage space 22 and the outside air is cut off, and the invasion of moisture can be prevented. . Therefore, storage space 2
The desiccant in 2 can be prevented from being saturated early.

The effects that can be expected from the above embodiment will be described below. (A) Lower lid body 14 in which sealing lid 13 has fitting portion 14a
And an upper lid body 15 having a skirt portion 15a. For this reason, the thicknesses of the lower lid 14 and the upper lid 15 of the closed lid 13 are not increased, and the lids 14 and 15 are accurately formed of a synthetic resin material with almost no deformation due to sink marks. can do. In addition, since the thickness of each part of the lids 14 and 15 is substantially constant, the above-mentioned deformation can be reliably prevented, and it can further contribute to accurate molding.

(B) Even if the skirt portion 15a of the upper lid 15 is curved, no complicated projection is formed between the skirt portion 15a and the cylindrical portion 20, so a complicated mold is required. And not. By the way, if the annular projection 24 of the lower lid 14 is formed on the cylindrical portion 20 of the upper lid 15, the direction of pulling out the dies differs between the skirt portion and the cylindrical portion, and a complicated and expensive die is formed. Is required.

(C) Since the vertical thickness of the upper lid 15 can be ensured and the vertical length of the skirt 15a can be sufficiently ensured, the skirt 15a can be securely gripped and the closed lid 13 can be secured. Can be easily opened and closed.

(D) A storage space 22 is formed between the lower lid 14 and the upper lid 15, and a communication hole 23 is formed in the bottom wall of the lower lid 14. Therefore, a desiccant or the like can be easily stored by using the storage space 22, and an object such as food stored in the container body 11 can be held in a dry state by the desiccant. .

(E) The lower lid 14 and the upper lid 15 of the closed lid 13 can be easily assembled or separated by engaging or disengaging the screw portions 19, 21. Therefore, the storage space 2 between the lower lid 14 and the upper lid 15
The desiccant and the like can be easily desorbed and exchanged into 2.

The present invention can be embodied with the following modifications. (1) The packing 17 is formed in a tapered ring shape as shown in FIG.

(2) A seal ring for blocking ventilation is provided between the cylindrical portion 20 of the upper lid 15 and the flange 18 of the lower lid 14. With this configuration, it is possible to more reliably prevent moisture from entering the storage space 22.

[0031]

The present invention is configured as described above, and has the following effects. According to the first aspect of the present invention, a sufficient amount of the lid protruding upward from the container body can be secured, and the lid can be easily opened and closed. In addition, the occurrence of sink marks due to molding is suppressed, and high-precision processing becomes possible. In addition, a desiccant or the like can be stored using the storage space between the lower lid and the upper lid, and the desiccant can be used to dry an object such as food stored in the container body. Can be kept in a state. Further, the lower lid and the upper lid of the closed lid can be easily assembled or separated by engagement or disengagement of the screw portion,
The replacement of the desiccant or the like into the storage space can be easily performed.

According to the second aspect of the present invention, there is no need to change the direction in which the mold is removed, and a complicated and expensive mold is not required.

[Brief description of the drawings]

FIG. 1 is a perspective view showing one embodiment of a sealed container of the present invention.

FIG. 2 is a longitudinal sectional view of the sealed container.

FIG. 3 is a front view showing a lower lid of the closed lid.

FIG. 4 is a plan view of the lower cover.

FIG. 5 is a bottom view showing the upper lid of the closed lid.

FIG. 6 is a sectional view taken along line 6-6 in FIG. 5;

FIG. 7 is a partially cutaway front view showing another embodiment of the packing.

[Explanation of symbols]

11: container body, 11a: opening, 13: closed lid, 14
... lower lid, 14a ... fitting part, 15 ... upper lid, 15a
... Skirt, 17 ... Packing, 19 ... Screw, 21 ...
Screw part, 22: storage space, 23: communication hole, 24: annular projection

Claims (2)

[Claims] 1. A lid which is detachably fitted to an opening of a bottomed cylindrical container body, wherein a lower lid having an upper surface having a fitting portion for fitting into the opening of the container body is provided. , An upper lid with an open lower surface,
It is constructed by assembling with each other. A packing is attached to the outer periphery of the fitting part of the lower lid to join to the inner peripheral surface of the opening of the container body, and a desiccant etc. is stored between the lower lid and the upper lid. And a communication hole for communication between the storage space and the inside of the container body is formed in the bottom wall of the lower lid, and the lower lid and the upper lid are formed on their peripheral surfaces. The lid of the hermetically sealed container which is detachably assembled by the engagement of the screw portion formed in the above. 2. The seal according to claim 1, wherein a groove for fitting a packing is formed on the outer periphery of the lower end of the lower lid, and a skirt is provided on the outer periphery of the upper lid to cover the opening of the container body. Container lid.