JPH05330566A - Tightly lidded receptacle - Google Patents

Abstract

PURPOSE:To achieve in a receptacle consisting of a main body and a lid good tightness and ease in taking off the lid by forming a smaller groove in the bottom of a substantially U-shaped groove formed in the lid, a fastening protrusion on the outer side wall of the larger groove, and a ridge for tight contact on the inner side wall of the larger groove. CONSTITUTION:This receptacle is a tightly lidded receptacle consisting of a main body 2 and a lid 1, the main body 2 having an inversely L-shaped, in a manner calyxlike projection 22 which projects outward from a little lower position under the edge 21 at the open end and the lid 1 having a substantially U-shaped groove 11 which opens downward at the fringe. In the bottom of the substantially U-shaped groove 11 a smaller groove 111 which fits over the edge 21 at the open end of the main body 2 is formed. On the outer side wall of the larger groove 11 a fastening ridge 12 to be fitted over the lower edge of the calyxlike projection 22 on the main body 2 for fastening is provided. Furthermore, on the inner side wall of the larger groove 11 a ridge 14 which comes in tight contact with the inner wall of the main body 2 is formed. When the lid 1 is in place, the receptacle is in tight closure with the ridge 14 on the lid 1 in tight contact with the inner wall at the edge 21 at the open end of the main body 2 so that the edge 21 at the open end is kept from being wetted with liquid contents.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a closed container suitable for containing a liquid substance.

[0002]

2. Description of the Related Art Conventionally, as a closed container, a downward opening concave groove is provided on the peripheral edge, and an inwardly projecting locking projection is provided on the inner surface of the lower part of the outer wall of the concave groove so as to project in the circumferential direction. A lid body and an upper opening container body, and one of the container body and the lid body is formed of an elastic material, and the opening edge of the container body is folded back outward to form a folded edge. When the recessed groove of the lid is fitted into the folded edge, the lower edge of the folded edge is locked to the ridge, and the folded edge and the outer wall of the lid press each other to form the recessed groove. It is known that the inner surface can be tightly fitted with elasticity (Japanese Patent Laid-Open No. 162252/1993).

[0003]

However, in such a closed container, the folded edge of the container body and the outer wall of the lid are pressed against each other to make a tight seal, and the inner wall of the lid and the container are closed. The tightness with the contact portion with the upper opening edge of the main body was not always sufficient. For this reason, when a liquid substance is put in, it is inconvenient to get into the upper opening edge and open the lid to soil the hand. Also, a relatively large force was required to remove the lid.

SUMMARY OF THE INVENTION It is an object of the present invention to solve the conventional problems described above, and to provide a hermetically sealed container which has a sufficient hermeticity and whose lid can be easily removed.

[0005]

A closed container according to the present invention has a container body in which an inverted L-shaped collar portion is formed outward from the lower end of an opening edge, and opens downward near the edge. A lid provided with a groove, and a small groove for accommodating an opening edge of the container body is further formed at a bottom of the groove of the lid, and a flange portion of the container body is provided on a side wall surface outside the groove. The gist of the present invention is that a locking projection for locking the lower end of the container is provided, and that a side projection on the inner side of the groove is provided with a tight contact projection that comes into contact with the inner wall surface of the container body. To do.

The cross-sectional shape of the concave groove opening downward of the closed container of the present invention may be either a square groove shape or a round groove shape, and the cross-sectional shape of the opening end edge of the container body and the locking ridge is the concave groove shape. It is made to match the shape.

The lid of the hermetically sealed container of the present invention is elastic so that it can be easily removed from the container main body by expanding the diameter by placing a fingertip in the gap formed between the lower end of the side wall outside the concave groove and the container main body. It is preferable that it is made of synthetic resin, and the locking projection is provided slightly above the lower end of the side wall outside the groove.

[0008]

The closed container of the present invention is a lid having a container main body in which an inverted L-shaped flange is formed outward from the bottom of the opening edge and a concave groove opening downward near the edge. A small groove for accommodating the opening edge of the container body is further formed at the bottom of the concave groove of the lid body, and the lower end of the flange portion of the container body is locked to the side wall surface outside the concave groove. Since there is provided a locking projection for contacting the inner wall surface of the container main body with a tight contact projection, the opening edge of the container main body when the lid is closed is provided. The inner wall surface is closely sealed to the tight contact ridges of the lid body, and the stored liquid material does not wet the opening edge.

[0009]

Embodiments of the present invention will now be described with reference to the drawings. FIG. 1 is a partial cross-sectional view showing a state in which a lid body and a container body according to an embodiment of the present invention are separated, and FIG. 2 is a partial cross-sectional view showing a state where the lid body is attached to the container body. Reference numeral 1 is a flat circular lid made of low-density polyethylene, in which a downwardly-opening concave groove 11 having a rectangular cross section is provided in the periphery near the edge, and a small groove 111 is further formed in the inner periphery of the bottom of the concave groove 11. On the outer side wall surface, a locking projection 12 is provided so as to project slightly above the lower end along the circumferential direction, and the lower end of the outer surface of the side wall is formed as a thick portion 13, and the inner side wall surface is closely adhered. The ridges 14 are provided on the upper and lower three stages along the circumferential direction.

Reference numeral 2 denotes a polypropylene container body having a circular shape in a plan view, in which an inverted L-shaped collar portion 22 is formed along the circumferential direction outward from the upper end of the opening edge 21 toward the outside.
Reference numeral 23 is a rib radially provided between the collar portion 22 and the outer peripheral wall in order to maintain the strength while reducing the amount of material used.

The lid 1 stores a liquid substance (not shown) in the container body 2 and then, when the small groove 111 is aligned with the opening edge 21 of the container body 2 and pressed downward, the locking projections are formed. 12 is fitted into the concave groove 11, the lower end of the flange portion 22 is locked to the upper end of the locking projection 12 of the lid, and the adhesion projection 14 is in close contact with the inner surface of the opening edge 21. Sealing property is developed.

[0012]

Since the container of the present invention is constructed as described above, it is possible to obtain a sufficient hermeticity and to prevent the liquid substance contained when the lid is opened from soiling the hands.

[Brief description of drawings]

FIG. 1 is a partial cross-sectional view showing a state in which a lid body and a container body of a closed container of the present invention are separated.

FIG. 2 is a partial cross-sectional view showing a state in which the lid body of FIG. 1 is attached to a container body.

[Explanation of symbols]

 1 Lid 2 Container body 11 Groove 12 Locking ridge 14 Adhesive ridge 21 Opening edge 22 Collar 111 Small groove

Claims (1)

[Claims] 1. A container body in which an inverted L-shaped flange is formed outward from a downward direction of an opening edge, and a lid body having a concave groove opening downward near the edge, A small groove for accommodating the opening edge of the container body is further formed at the bottom of the concave groove of the lid,
A locking ridge for locking the lower end of the flange of the container body is provided on the outer side wall surface of the groove, and the inner side wall surface of the groove contacts the inner wall surface of the container body. An airtight container provided with a contact-use ridge for contact.