JPH0958715A - Lidded hermetically closed container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To clamp a lid at a stroke, in the threading relation between a male screw and a female screw, by forming a lid so as to form the same into a cross-sectional structure so as to be capable of pushing the lid in a just under direction and a cross-sectional structure engaging the lid so as not to detach the same in a just upper direction. SOLUTION: A lid 3 has a peripheral wall 4 so as to be fitted to the outside of a body 1 and, in the mounting structure thereof, fine male screws 5 and fine female screws 7 meshed with each other are formed to the inner peripheral surface of the lid 3. In the threading relation of the male and fermale screws 5, 7, the lid 3 is formed into a cross-sectional shape escaping in a direction so as to be capable of pushing the lid 3 in a just under direction and an opening lock structure 6 engaging the lid 3 so as not to detach the same in a just upper direction. By this constitution, the lid 3 is fitted to the body 1 only by pressing the lid 3 without rotating the lid 3 and hermetically closed safety can be ensured.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plastic closed container with a lid used for packing and selling processed foods such as seafood and edible wild plants.

[0002]

2. Description of the Related Art In a conventional closed container with a lid, various attempts have been made to fit the lid so that juice of food does not leak out. Examples of this include various types such as a close fitting type, a screwing type, and a taper engaging type. Among them, in the case of the close fitting type, the lid is made of soft plastic so that it can be tightly fitted into the body due to its elasticity, and the annular ridge and the annular groove that hang on the body and the lid mutually. May be provided.

The taper engagement type is similar to the threaded type, in which tapered ridges are formed on the outer peripheral surface of the body and the inner peripheral surface of the lid so as to form part of the screws at equal intervals. However, both taper ridges are engaged with each other, and the lid is crimped to the upper end of the body by the boosting force based on the screw or taper as in the case of the screw type, so that the juice is prevented from leaching.

[0004]

Among the conventional closed containers with a lid as described above, in the case of the close-fitting type, the lid is fitted or removed against the elasticity of the lid. Not only the force is required, but also it is necessary to apply the force evenly along the circumference, and there is a problem that the lid cannot be opened and closed efficiently.

In the case of the screw type or the taper engagement type, it is necessary to rotate the lid to open and close the lid, and particularly when the lid is tightened, even if the lid is rotated, the lid is screwed from a predetermined position determined as a screw. Since the mating or the engagement starts, it has been necessary to idle the lid unnecessarily until then, and there has been a problem that efficient operation is lacking.

The present invention has been made in view of the above circumstances.
It is an object of the present invention to provide a closed container with a lid that can be closed at once and that is in a good closed state.

[0007]

In order to achieve the above object, the present invention provides a body having a fine male thread on the outer peripheral surface of the upper end portion and a fine female thread which is screwed to the inner peripheral surface of the peripheral wall. Concerning the screwing relationship between the male screw and the female screw, it has a cross-sectional structure that escapes in that direction so that the lid can be pushed in the downward direction, and a cross-sectional structure that latches in that direction so that it does not escape upward. It is characterized in that it is formed.

In the above-mentioned closed container with a lid, a protective ridge may be provided so that the lower end of the peripheral wall of the lid abuts on the outer peripheral surface of the upper end of the body so that the lid cannot be opened.

Further, below the threaded portion of the lid, a large retaining ridge having a cross section which hangs upward on the outer peripheral surface of the body and a large retaining ridge on the inner peripheral surface of the peripheral wall of the lid are provided. To form a large retaining groove to engage with, so that the lower end of the peripheral wall of the lid can be cut along the large retaining groove, a part of the peripheral wall for the cutting operation and a cutting start point It may also form a notch.

[0010]

[Operation] Since the closed container with a lid is configured as described above, when the lid is opened, the lower end of the peripheral wall of the lid is cut off.
Then, the lid will be released from the large hanging ridge,
You can turn the lid and remove it from your body. Further, when the lid is tightened, it can be pressed against the mouth of the body to pass through the male screw of the body and the lid can be adhered as it is, and then the lid can be sealed with a slight screwing.

[0011]

Embodiments of the present invention will now be described with reference to the drawings.

The drawings show one embodiment, in which a closed container with a lid is made of hard plastic.
And a lid 3 formed of soft plastic, and the lid 3 is fitted with a close fitting type utilizing the elasticity of the lid 3.
It has both a screw type and a screw structure. In addition, lid 3
A mechanism that can only be opened by cutting off a part of the
The opening lock structure 6 is provided.

The lid 3 has a peripheral wall 4 so as to be attached to the outside of the body 1, and the attachment structure is such that the outer peripheral surface of the upper end portion of the body 1 and the inner peripheral surface of the lid 3 are mutually attached. A male screw 5 and a female screw 7 that mesh with each other are formed. An opening lock structure 6 is provided below the male screw 5 and the female screw 7.

Regarding the opening lock structure 6, first, the lid 3
In order to prevent prying open, a protective ridge 9 is formed on the outer peripheral surface of the body 1 against which the lower end of the peripheral wall 4 of the lid 3 abuts, and the protective ridge 9 is slightly outwardly projected from the outer peripheral surface of the peripheral wall 4. is there. Next, a large retaining projection 11 is formed on the outer peripheral surface of the body 1, and a large retaining groove 13 is formed on the peripheral wall 4 of the lid 3 so as to form a triangular cross section having a retaining angle in the upward direction in which the lid 3 is opened. Therefore, as will be described below, the lid 3 is never opened unless the lower end of the peripheral wall 4 is cut off.

In order to cut off a part of the lid 3 in this way,
On the lower end of the peripheral wall 4 of the lid 3, a tab 15 is projected in a tongue shape,
On the left side thereof, the peripheral wall 4 has a notch 1 opening at the lower end.
7 are formed. This notch 17 is a large retaining groove 13
Since it reaches the bottom of the, notch 17 when pulling the knob 15
The lower end of the peripheral wall 4 is cut out along the large retaining groove 13. FIG. 4 shows the state, and after opening, the lid 3 can be simply pushed down and tightened as described later, and can be opened by slightly turning. And
Since the mark of the large retaining groove 13 remains on the slope 20 and the opening of the lid 3 becomes large, the operation of attaching the lid 3 is easy.

The notch 17 serving as a starting point for cutting off a part of the lid 3 in this way may be formed only on one side of the knob 15, but is shown by a chain double-dashed line in FIG. 1 to facilitate the cutting. As described above, it may be formed on the knob 15 along the large retaining groove 13 up to the other end side. In addition, in order to prevent the inconvenience of being inadvertently cut open from the notch 17 other than the operation, the notch 17 has a connecting piece 19 connecting both sides thereof.
Is desirable to be formed.

When the lower end of the peripheral wall 4 of the lid 3 is cut off, the lid 3
However, regarding the screwing structure of the body 1 and the lid 3, the male screw 5 and the female screw 7 are finely formed, and as shown in FIG. 3, the clearance angle is in the direction of lowering the lid 3 in the cross section. Since the lid 3 is formed, the lid 3 can be fitted only by pressing it against the body 1 without rotating the lid 3 (see the arrow in FIG. 4).

When the lid 3 is fitted and then turned a little and the screw is tightened, a boosted force of the screw results in a sealed state. In order to ensure this sealing, an annular fin 20 is formed on the upper surface of the lid 3 so as to elastically adhere to the upper end of the body 1.

Further, the male screw 5 and the female screw 7 have a hooking angle in a direction directly above which the lid 3 is opened, and because of this hooking angle, the lid 3 cannot be opened unless it is turned in the screw direction. But,
Since the angle of the screw is steep, the lid 3 can be opened by slightly turning it. The number of turns for opening is, for example, 0.4 or 1.

[0020]

As described above, according to the closed container with the lid of the present invention, the lid can be tightened at once by pressing it against the body, and at that time, the troublesome operation of positioning and screwing can be omitted. In particular, it is very convenient in the case of a lid that is repeatedly opened and closed after opening, and since the male screw and the female screw to be screwed are fine, there is an excellent effect that the sealing is good.

When a protective ridge is provided on the outer peripheral surface of the upper end of the body against which the lower end of the peripheral wall of the lid abuts (claim 2), it is possible to prevent the risk of prying open during the distribution process such as during transportation and reach the consumer. Can ensure food safety.

When a knob for cutting operation and a notch which is the starting point of cutting are formed in a part of the peripheral wall so that the lower end of the peripheral wall of the lid can be cut along the large retaining groove. 3) When opened, the trace clearly remains as evidence, so that further safety can be ensured, and after opening, the lower end of the lid opens by opening the large retaining groove, The lid is very easy to fit.

[Brief description of drawings]

FIG. 1 is a perspective view of a closed container with a lid, showing a main part with a part cut away in a state before opening.

FIG. 2 is an enlarged sectional view of a main part taken along the line AA of FIG.

FIG. 3 is an enlarged cross-sectional view of portion B of FIG.

FIG. 4 is a cross-sectional view corresponding to FIG. 2 showing a state after opening.

[Explanation of symbols]

 1 Body 3 Lid 4 Peripheral wall 5 Male screw 7 Female screw 9 Protective ridge 11 Large hanging ridge 13 Large hanging ridge 15 Pick 17 Notch

Claims (3)

[Claims] 1. A body having a fine male thread on an outer peripheral surface of an upper end portion, and a lid having a fine female thread on the inner peripheral surface of a peripheral wall, the lid having a screwing relationship between the male thread and the female thread. A closed container with a lid, characterized in that it is formed in a cross-sectional structure that escapes in that direction so that it can be pushed directly downward, and a cross-sectional structure that latches in that direction so as not to escape in the direction directly above. 2. The closed container with a lid according to claim 1, wherein a protective ridge is provided on the outer peripheral surface of the upper end of the body so that the lower end of the peripheral wall of the lid abuts so as to prevent the lid from being pry open. 3. Below the threaded portion of the lid, a large retaining ridge having a cross section that hangs upward on the outer peripheral surface of the body and a large retaining ridge on the inner peripheral surface of the peripheral wall of the lid. Form a large retaining groove to engage,
A knob for cutting operation and a notch as a starting point of cutting are formed in a part of the peripheral wall so that the lower end of the peripheral wall of the lid can be cut along the large retaining groove. 1
Or the closed container with a lid according to 2.