JPH10167311A - Sealing container made of resin - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve transparency of a lid and allow contents to be clearly observed by including a body with an upper part opened made of flexible plastic and a lid made of rigid plastic and providing a torn-off part by forming two body annular protrusions in upper and lower stages on an inner wall at an upper end of the body. SOLUTION: The sealing container 1 is formed on a body 10 made of flexible plastic such as polypropylene and a lid 40 made of rigid plastic such as polystyrene, and a housing 18 comprising a bottom 14 which legs 12 and a side wall 16 is formed in the body 10. An upper-stage body annular protrusion 20 and a lower-stage body annmular protrusion 22 are formed on an inner wall of a body fitting part 17 at an upper end of the side wall 16, while a horizontal and thin horizontally torn-off part 26 is formed between the upper- and lower- stage body annular protrusions 20, 22. A pull-to-tear tab 30 is provided outside the protrusion 20 and a tear start part 32 is provided inside. On the other hand, the lid 40 is formed with a raised part 44 around a lid plan 42, while a lid fitting part 46 is provided on a lower face of a periphery of the lid plane 42.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a resin-sealed container which cannot be returned to its original shape once opened, but can be repeatedly opened and closed after opening.

[0002]

2. Description of the Related Art In Japanese Utility Model Laid-Open Publication No. Hei 5-67582, a body made of hard plastic and a lid made of soft plastic are provided so that the lid is attached to the upper end of the peripheral wall of the body. Form a channel-shaped edge piece that is inverted and bent downward, and at the upper end of the peripheral wall of the body, provide an annular ridge at the upper and lower stages on the outer peripheral surface and form it into a triangular cross section with a relief angle downward Then, on the edge piece of the lid part, an upper and lower two-step annular groove is formed in which both annular protrusions are fitted,
A sealed container having a tear knob along the upper annular groove for the first opening is disclosed.

[0003]

The soft plastic is
It has a tensile modulus of 4200 kg / cm ² or less, such as polypropylene, and generally has poor transparency. Hard plastic has a temperature of 23 ° C and a relative humidity of 50
% Or when it cannot be applied, the tensile modulus is 7000 kg / cm ² or more, for example, polystyrene, etc., which generally has good transparency. Obtainable. Therefore, in the sealed container disclosed in Japanese Utility Model Laid-Open No. 5-67582, the body is highly transparent, and the contents can be easily confirmed. However, the lid has low transparency, and the one close to the lid can be observed, but the one remote from the lid is blurred.

On the other hand, as a container, it is often preferable to observe the filling of the container through a flat lid from above which is observed from a cylindrical or conical side surface. Also,
Even when a document or the like is stored in a container, it is often preferable to read through a flat lid from above rather than from a cylindrical or conical side. Therefore, the conventional resin-sealed container, which cannot be returned to its original form once opened once opened, but can be repeatedly opened and closed after opening,
The lid portion is made of soft plastic and has low transparency, and the body portion is made of hard plastic and has high transparency, and there is a problem in observing the contents. Furthermore, in the conventional resin-sealed container that cannot be returned to its pre-opened form once opened, but can be repeatedly opened and closed after opening, the lid portion made of soft plastic is outside at the fitting portion. For this reason, in order to make the fitting portion strong, it is necessary to adopt a sandwiching structure for sandwiching the body portion, and there is a problem that a molding die and a molding process become complicated.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems relating to a conventional resin-made sealed container which cannot be returned to its original shape once opened, but can be repeatedly opened and closed after opening. It is an object of the present invention to provide a hermetically sealed resin container in which the lid has a high transparency and the contents can be clearly observed. The present invention also provides
It is an object of the present invention to provide a resin-made hermetically-sealed container which has a simpler molding die and molding process than conventional ones, and can keep production costs low.

[0006]

SUMMARY OF THE INVENTION The present invention comprises a body made of a soft plastic and opened upward, and a lid made of a hard plastic and covering an upper open portion of the body, and an upper end of the body. An upper wall and a lower body are formed with two ring-shaped convex portions on the inner wall, and a tear portion is provided between the ring-shaped convex portions that is more easily torn than other portions, and the lid portion is fitted inside the upper end portion of the body portion. And a lid fitting portion having two upper and lower lid annular convex portions each having an upward portion engaged with a downward portion of each of the two upper and lower body annular convex portions. It is a sealed container. The embodiments of the present invention are as follows. A tear knob is provided on the upper body annular convex part of the body part. The upper body annular convex portion of the body is provided with a cut for substantially vertically cutting the upper annular body convex portion. A thin portion is provided on the upper body annular convex portion of the body portion so as to cut the upper body annular convex portion substantially vertically.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A resin sealed container according to a first embodiment of the present invention will be described below with reference to the drawings. Resin sealed container 1
As shown in FIG. 2, the body comprises a body 10 made of a soft plastic such as polypropylene, for example, and a lid 40 made of a hard plastic such as polystyrene. The body 10 is, as shown in FIG.
Then, the accommodating portion 18 is formed from the cylindrical side wall portion 16. An upper body annular protrusion 20 and a lower body annular protrusion 22 are formed on the inner wall of the body fitting portion 17 at the upper end of the side wall portion 16.
Between the upper body annular convex part 20 and the lower body annular convex part 22,
A horizontal cut portion 26 extending horizontally and having a small thickness is formed. A tearing knob 30 is provided at one position outside the upper-stage annular protrusion 20.
There is provided a tear initiation portion 32 which extends vertically inside the inside.

As shown in FIG. 1, the lid portion 40 has a rising portion 44 formed around the lid flat portion 42 and the lid flat portion 4
A lid fitting portion 46 that fits inside the body 10 is provided on the lower surface of the peripheral edge of the body 2. The lid fitting portion 46 has, on its outer surface, an upper lid annular convex portion 50 having an upward portion 50U that engages with the downward portion 20D of the upper body annular convex portion 20, and engages with a downward portion 22D of the lower stage annular convex portion 22. Upward part 52U
And a lower lid annular convex portion 52 having The resin-made sealed container of the first embodiment having such a configuration is used as follows. That is, the contents are filled in the storage portion 18 of the body 10, and a label describing a trademark or a commentary on the contents is put on the contents as desired. Subsequently, the lid 4 is placed on the body 10.
Then, the cover fitting part 46 of the cover part 40 is pushed into the body fitting part 17 of the body part 10 and fitted. That is, although the lid fitting portion 46 of the lid portion 40 is not deformed due to the hard plastic, the body fitting portion 17 of the body portion 10 is made of a soft plastic and extends, and the lower fitting portion 46 of the lid fitting portion 46 extends. Annular convex part 50
And the upper-stage lid annular convex portion 52 goes over and fits the upper-stage annular convex portion 20 and the lower-stage annular convex portion 22 sequentially.

[0009] To open, pull the tearing knob 30,
First, the upper body annular convex part 20 is separated from the lid part 40 by tearing the tearing start part 32 of the upper body annular convex part 20 and subsequently cutting the horizontal tear part 26. As a result, the body part 10 and the lid part 40 become a resin-made sealed container that can be repeatedly opened and sealed. In the second embodiment of the present invention, the tear start portion 32 of the first embodiment is replaced with a notch extending in a vertically downward direction.

[0010]

According to the present invention, once the package is opened, it cannot be returned to the state before the package is opened, but in the resin-made sealed container which can be repeatedly opened and closed after the package is opened, the transparency of the lid portion is high. This has the effect that the contents can be clearly observed. Further, there is an effect that the molding die and the molding process are simpler than those of the related art, and the production cost can be reduced.

[Brief description of the drawings]

FIG. 1 is a sectional view of a resin-made sealed container according to a first embodiment of the present invention.

FIG. 2 is a perspective view of the sealed resin container according to the first embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Resin sealing container 10 Body part 12 Leg part 14 Bottom part 16 Side wall part 17 Body fitting part 18 Housing part 20 Upper stage annular convex part 22 Lower stage annular convex part 26 Horizontal cut part 30 Tear knob 32 Tear start part 40 Lid part 42 lid flat part 44 rising part 46 lid fitting part 50U upward part 50 upper lid annular convex part 52U upward part 52 lower lid annular convex part

Claims (4)

[Claims] An upper body part made of soft plastic and a lid part made of hard plastic and covering an upper opening part of the body part, and two upper and lower tiers are provided on an inner wall of an upper end part of the body part. A ring-shaped convex portion is formed, a tearing portion is provided between the ring-shaped convex portions, which is more easily torn than other portions, and the lid portion is fitted inside the upper end of the body portion. A resin sealed container provided with a lid fitting portion having two upper and lower lid annular convex portions each having an upward portion engaged with a downward portion of each of the body annular convex portions. 2. The resin-made hermetically sealed container according to claim 1, wherein a tearing knob is provided on the upper body annular convex portion of the body portion. 3. The resin-made sealed container according to claim 1, wherein a cut is formed in the upper body annular convex portion of the body portion so as to cut the upper body annular convex portion substantially vertically. 4. The resin-made sealed container according to claim 1, wherein a thin portion is provided on the upper body annular convex portion of the body portion to cut the upper body annular convex portion substantially vertically.