JPH072437Y2 - Closed container - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a closed container used for refrigerating and storing processed foods.

(Prior Art) Conventionally, a container body in which an upper end opening end edge is an annular convex portion having a wall thickness thicker than a container wall, and a peripheral body having a shape fitted to the annular convex portion and having an outer peripheral wall and an inner peripheral wall An annular convex portion formed by the connecting portion and an outer peripheral wall, an inner peripheral wall, or an annular convex portion that is not located below the inner peripheral wall lower end, and the outer peripheral wall lower end is lower than the inner peripheral wall lower end. An airtight container which is composed of a flexible and elastic soft plastic lid having an outer peripheral wall and an inner peripheral wall having the above-mentioned structure and which can adopt a two-step strength and weakness fitting system is disclosed in, for example, Jitsuko Sho-48- 720
No. 2 publication.

(Problems to be Solved by the Invention) However, in the above-mentioned conventional technique, when the second stage fitting for imparting a high degree of sealing property is performed, the structure is expected to further enhance the sealing property. However, there is a problem that the lid becomes more difficult to attach and detach.

The airtight container of the present invention has been made for the purpose of solving the above-mentioned drawbacks and providing a airtight container having both high airtightness and easy attachment / detachment of a lid.

(Means for Solving the Problem) The gist of the present invention is to provide a lower opening locking recessed groove at the periphery,
A lid made of synthetic resin in which concentric circular double walls are vertically hung in the engaging groove, and an upper opening wide concave groove that can be fitted into the upper groove is formed on the outer periphery of the upper opening edge. An annular body provided with a container main body in which an arbitrary number of through holes are provided in the bottom surface of the concave groove at intervals in the circumferential direction, and a tapered columnar projection that is insertable into the through hole in the upper surface. It exists in a closed container characterized by consisting of.

In the present invention, at least the lid body should be made of synthetic resin, and in particular, synthetic resin such as polyethylene and polypropylene having high flexibility.

In the present invention, when the lid is in the closed state, the outer wall of the groove of the container body is fitted between the inner wall of the outer wall of the locking groove of the lid and the double wall without using the annular body. Or (and) the inner wall of the container body groove is fitted between the inner wall of the inner groove of the locking groove of the lid and the double wall to obtain a lightly sealed state. In addition, the concave groove of the container body and the groove for locking the lid body are not loosely fitted, and the tapered projection of the annular body is fitted into the through hole to provide a tight fit and a high degree of sealing. It is possible to obtain the state, and further, it is possible to use the lightly sealed state and the highly sealed state together.

When the closed container of the present invention is in a highly sealed state, it is optional to provide an appropriately shaped handle on the lower surface of the annular body so that the annular body can be easily peeled off when opening the lid.

(Operation) Since the present invention is configured as described above, when the lid is applied, the locking groove of the lid body is inserted into the upper open bottom groove of the container main body, and the bottom wide recess is formed. When the tapered tapered columnar protrusion of the annular body is fitted into the through hole of the groove, the double wall hung vertically inside the locking groove is expanded in the radial direction by the columnar protrusion due to the pliability of the synthetic resin, and the bottom is extended. It adheres to the inner surface of the side wall of the wide groove.

Embodiment An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a partially cutaway sectional view showing an embodiment of the present invention, in which (a) shows a state in which a lid, a container body and an annular body are separated, and (b) shows a lid on the container body. It shows a state in which it is capped, and an annular body is inserted and sealed.

Reference numeral 1 denotes a polyethylene resin lid having a circular shape in a plan view, and a lower opening locking recessed groove 11 is provided in the peripheral edge thereof, and inside the recessed groove 11, double walls 12 and 13 are concentric circles. It is hung vertically.

Reference numeral 2 denotes a container body also made of polyethylene resin, which has a circular shape in plan view, and an upper opening bottom wide concave groove 21 which can be fitted into the concave groove 11 is projectingly provided on the outer periphery of the upper opening end edge. The inner surface of the outer peripheral wall is inclined outward, and several circular through holes 22 are formed in the bottom surface at substantially equal intervals in the circumferential direction.

Reference numeral 3 is a flat annular body which can be fitted into the through hole 22 on the upper surface thereof and is provided with tapered columnar projections 31 having an approximately conical bulging portion only on the outer side and connected at equal intervals.

The mode of use of the present invention will be described based on the above-described embodiment. The lid 1 has a container body 2 in which contents (not shown) are housed, and then a locking groove 11 is formed in the container body 2 to open upward. Wide bottom groove
Match 21 and press downward to wear. Then, when the tapered columnar projection 31 of the annular body 3 is fitted into the through hole 22 on the bottom surface of the wide bottom concave groove 21 from below, the outer double wall 12 is tapered.
Thus, the width of the groove is expanded outward in the radial direction, and the inner wall of the outer peripheral wall of the wide bottom concave groove 21 is closely attached.

(Effect of the Invention) Since the hermetically sealed container of the present invention is configured as described above, high sealing performance can be obtained by inserting the tapered columnar protrusion of the annular body into the through hole of the bottom of the container body. This can be realized, and the lid can be easily attached and detached by removing the annular body from the through hole.

[Brief description of drawings]

FIG. 1 is a partial sectional view showing an embodiment of the present invention. 1 ... Lid body, 2 ... Container body, 3 ... Annular body, 11 ... Lock groove, 12, 13 ... Double wall, 21 ... Wide bottom groove, 22 ...
Through hole, 31 ... Tapered columnar protrusion.

Claims (1)

[Scope of utility model registration request] Claims: 1. A synthetic resin lid body having a lower opening locking recessed groove formed on the periphery thereof, and a double wall being hung concentrically in the locking recessed groove, and an upper opening end. A container main body in which an upper opening bottom wide concave groove that can be fitted into the concave groove is projected on the outer periphery of the edge, and an arbitrary number of through holes are formed in the bottom surface of the concave groove at intervals in the circumferential direction, An airtight container comprising an annular body having an upper surface continuously provided with tapered columnar projections that can be inserted into the through holes.