JP2001287725A - Packaging container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a packaging container made of a synthetic resin film wherein a lid can be closed by a one-touch operation of simply pushing the lid from upward and the lid is opened by an operation of intentionally tearing off upper and lower tabs from each other. SOLUTION: A container body 1 includes outward projections which protrude in a direction of an outer periphery on an upper half of at least four corners of a hanging wall and a lower tab 15 formed by making a part of a flange protrude in a direction of the outer periphery. The lid 2 includes inward projections 24 which protrude in a direction of an inner periphery on a lower half of at least four corners of a vertical wall 22 and further an upper tab 25 formed by making a part of a horizontal flange 23 protrude in a direction of the outer periphery.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a packaging container in which a container body and a lid are formed of a synthetic resin film material, and the lid is fitted to the container body. The present invention relates to a light-weight disposable packaging container used for storing and displaying small fresh foods such as kumquat, kumquat and loquat and fruits.

[0002]

2. Description of the Related Art Conventionally, a packaging container in which such a container body and a lid are formed of a synthetic resin film material, and the lid is fitted to the container body, A wide variety of forms are known, manufactured and commonly provided as packaging containers for food and the like.

[0003]

However, such a disposable type lightweight packaging container made of a thin synthetic resin film material has a thickness of about 0.2 to 0.6 mm in terms of material cost. Even if it is thick, it is manufactured from a thin material up to about 0.8 mm, so there is a limit in the fitting force between the container body and the lid, and it has a sufficient fitting force without making the used material thick. Obtaining a container has been an important issue.

[0004] That is, for example, using FIG. 1 shown as an embodiment, a container having a size of 100 x 100 mm, for example, in which a mini tomato is accommodated in a container, is described in a mass store or a grocery store. And arrows a and a in FIG.
As indicated by, the purchaser almost without exception tries to transfer the pair of opposing sides b, b of the container A arranged at the store to the shopping basket by holding the pair of sides b, b between the thumb and the index finger or the middle finger.
At this time, the holding force has to lift the weight of the miniature tomato, so that the container is naturally unconsciously strongly pinched, and the container body is deformed together with the lid in the directions of arrows a and a. There is a danger that the container body may fall off due to the load of the mini-tomato and scatter the product by being disengaged from the container.

Therefore, the present invention provides a simple operation of fitting the lid to the container body by a one-touch operation of merely pressing the lid from above. Even when the pair of opposite sides b, b of the container are sandwiched between the thumb and the index finger or the middle finger and lifted, the container body and the lid are not disengaged from each other and are securely closed with a strong fitting force. The lid can be kept in the posture, so that there is no possibility of accidental dropping of the container due to disengagement, and the lid opening operation is performed by intentionally pulling the upper and lower knobs. It is an object of the present invention to provide a packaging container made of a synthetic resin film.

[0006]

The structure of the present invention, which has been adopted to achieve the above object, will be described with reference to the reference numerals used in the description of the embodiments. A container having a substantially rectangular shape formed of a synthetic resin film material will be described. Main body 1 and lid 2 fitted to container main body 1
The container body 1 comprises a horizontal stepped portion 11 extending toward the outer peripheral direction at the upper opening peripheral portion 10, a hanging wall 12 hanging down from the outer peripheral edge of the stepped portion 11, A horizontal flange edge 13 extending further from the lower end of the wall 12 toward the outer peripheral direction, an outwardly projecting portion 14 projecting toward the outer peripheral direction at an upper half portion of at least four corners of the hanging wall 12, A lower knob 15 formed by projecting a part of the flange edge 13 in the outer peripheral direction, and the lid 2 is in a horizontal position in contact with the horizontal step portion 11 of the container body 1 near the outer periphery thereof. A flange portion 21, a vertical wall 22 hanging down from an outer peripheral edge of the flange portion 21, and a horizontal flange portion 23 further extending from the lower end of the vertical wall 22 toward the outer peripheral direction.
And an inward protruding portion 24 protruding toward the inner circumferential direction at the lower half of at least four corner portions of the vertical wall 22, and furthermore, a part of the horizontal flange portion 23 is formed to protrude in the outer circumferential direction. An upper knob 25 is provided, and the outer shape of the flange edge 13 of the container main body 1 and the flange portion 23 of the lid 2 are formed to have substantially the same shape. The two inwardly projecting portions 24 are formed so as to be engaged with each other when the lid is closed.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In practicing the packaging container of the present invention having the above-described configuration, the hanging wall 12 of the container body 1 is directed to the outer half in the upper half of the portion other than the four corners. The vertical wall 22 of the lid 2 is provided with an inward projection 24 projecting toward the inner circumferential direction in the lower half of the portion other than the four corners. It is preferable to carry out as follows. When the contents of the container are mini-tomato, kumquat, loquat or other fresh vegetables or fruits as described above, a single hole 3 for air circulation may be provided on the top plate of the lid 2, for example. It is preferable to form a plurality of fresh vegetables for preservation of fresh vegetables and the like.

[0008] In forming the container according to the present invention, a predetermined shape is given by a conventionally known blow molding means. As the synthetic resin sheet, any kind of sheet material conventionally used for such a container can be used. However, if PET (polyethylene terephthalate) resin is used as the synthetic resin sheet material, waste material can be recycled. In addition, since the calorific value is small even in the case of incineration, there is an advantage that the generation of harmful substances such as dioxin can be eliminated without shortening the life of the incinerator and solving the problem of pollution.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The construction of the present invention will be described below with reference to the embodiments shown in FIGS. In these drawings, the present invention shows a container for accommodating mini tomatoes, which is composed of a container body 1 and a lid 2 fitted to the container body 1.
Its size is shown in the plan views shown in FIGS. 3 and 6.
A container having a square shape of about 100 × 100 mm in which four corners are arc-shaped, the depth of the container body 1 being about 50 mm, and the vertical depth of the lid 2 being less than 30 mm, which is 0.3 mm.
It is formed of a thin PET resin film material of about 0.4 mm.

The container body 1 has a horizontal step portion 11 having a width of about 6 mm extending toward the outer peripheral direction at a peripheral portion 10 of the upper opening thereof, and a horizontal step portion having a width of about 7 mm hanging from the outer peripheral edge of the step portion 11. A hanging wall 12 and a horizontal flange edge 1 having a width of about 2 mm extending further from the lower end of the hanging wall 12 toward the outer periphery.
And a plurality of outwardly projecting portions 14 which are arranged at the upper half of the vertical width and project toward the outer peripheral direction are formed at the four corners and each of the four sides of the hanging wall 12. ,
Further, a lower knob 15 is formed by projecting one corner portion of the flange edge 13 in the outer peripheral direction and lowering it by about 1 mm.

The lid 2 has a horizontal flange 21 having a width of about 6 mm, which is in contact with the horizontal step 11 of the container body 1 on the outer periphery of the dish-shaped portion 27 projecting upward, A vertical wall 22 having a width of about 7 mm which hangs down from an outer peripheral edge of the container 21 and circumscribes the hanging wall 12 of the container body 1, and a horizontal wall having a width of about 2 mm extending further outward from the lower end of the vertical wall 22. A flange portion 23 is provided at each of the four corners and each of the four sides of the vertical wall 22. The flange portion 23 is disposed at the lower half of the vertical width and protrudes toward the inner circumferential direction. A plurality of inwardly projecting portions 24 are formed in a positional relationship to be engaged with the portions 14 in the vertical direction.
An upper knob 25 is formed by projecting one corner of the horizontal flange portion 23 in the outer peripheral direction.

The flange edge 13 of the container body 1 and the lid 2
The flange 23 is formed in substantially the same shape so that its outer shape substantially coincides in the up-down direction when the lid is in the closed position. Also, as described above, the outwardly projecting portions 14 of the container body 1 and the inwardly projecting portions 24 of the lid 2 are formed at positions where the lids are vertically positioned and engaged with each other in the closed posture. Have been. In the container of this embodiment, projecting portions 14, 24,... Are formed at three places on each side of the container body 1 and the lid 2. Thus, four small holes 3 for air circulation are formed in the top plate portion 26 of the lid 2 so that the freshness of the miniature tomato can be maintained in the content food, here.

[0013] The container having such a structure is prepared by putting mini tomatoes into a container body 1 by a required weight and covering the lid 2 from above.
Is placed on the container body 1 and pressed lightly, the fitting of the lid 2 can be completed. Once the lid is closed, even if the container is gripped in the lateral direction, the gripping force is in contact with the container up and down and has a horizontal step portion 11 and a horizontal flange portion 21 having a predetermined width in the horizontal direction, a horizontal flange edge 13 and a flange portion. 23, and is formed on the vertical wall and engages in the vertical direction.
.., 24... Are acted on in a direction in which their positional relationships are close to each other, and the engagement relationship is not released. Therefore, opening the lid 2 requires an operation of picking up and pulling the upper and lower knobs 15 and 25 arranged above and below.

The containers shown in FIGS. 8 and 9 and the containers shown in FIGS. 10 and 11 show containers of different embodiments. The container shown in FIGS. 8 and 9 has semi-circular vertical ribs 18 and 28 formed on the four sides of the container body 1 and the lid 2, respectively. The container shown has four vertical ribs 19 and 29 formed on the four sides of the container body 1 and the lid 2, respectively, and further has a triangular mountain at the four corners of the lid 2. This is a structure in which horizontal ribs 29a are formed.
By forming such ribs, a change in appearance and an increase in pressure-resistant deformation strength are achieved. Other points are similar to those of the first embodiment.

Although the embodiment which is considered to be a representative of the present invention has been described above, the present invention is not necessarily limited to the above-described embodiment. For example, the container body and the lid are connected to each other at one end. May be used. In addition, the shape of the protruding portion may be a rib shape or a V-shape or may be changed to an appropriate shape. Can be implemented with appropriate modification.

[0016]

As is clear from the above description, the packaging container according to the present invention is formed of a thin synthetic resin film, but the lid is fitted to the container body by the operation of fitting the lid to the container body. Although it can be easily performed by one-touch operation just pressing from above, once the lid is fitted, the pair of opposite sides of the container are sandwiched between the thumb and forefinger or middle finger and lifted. Also,
The horizontal step of the container body and the horizontal flange of the lid oppose the clamping force, and at the same time, the flange edge of the lid and the flange of the lid, which have substantially the same outer shape, are integrated. Since the engagement protruding portions of the container body and the lid body do not separate from each other, a strong fitting force is reliably maintained, and the lid can be kept in the closed position. Therefore, there is a remarkable effect that a situation in which the fitting is disengaged and the container is unexpectedly dropped does not occur. The lid opening operation can be easily performed by intentionally pulling the upper and lower knobs.

[Brief description of the drawings]

FIG. 1 is a perspective view of a packaging container according to a first embodiment in a closed state.

FIG. 2 is a perspective view of a container body.

FIG. 3 is a plan view of the same.

FIG. 4 is a front view of the same.

FIG. 5 is a perspective view of a lid.

FIG. 6 is a plan view of the same.

FIG. 7 is a front view of the same.

FIG. 8 is a perspective view of a packaging container according to a second embodiment in a closed state.

FIG. 9 is a perspective view of the container body.

FIG. 10 is a perspective view of a packaging container according to a third embodiment in a closed state.

FIG. 11 is a perspective view of the container body.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Container main body 10 Opening peripheral part 11 Step part 12 Hanging wall 13 Flange rim 14 Outward protruding part 15 Lower knob 2 Lid 21 Flange 22 Vertical wall 23 Horizontal flange part 24 Inward protruding part 25 Upper knob 3 Small hole

Claims (3)

[Claims] 1. A substantially rectangular container body (1) formed of a synthetic resin film material and a lid (2) fitted to the container body (1).
The container body (1) has an upper opening peripheral portion (10)
A horizontal step (11) extending toward the outer peripheral direction, a hanging wall (12) hanging from an outer peripheral edge of the step (11), and a further outer periphery from a lower end of the hanging wall (12). A horizontal flange edge (13) extending in the direction, an outwardly projecting portion (14) projecting toward the outer peripheral direction at an upper half portion of at least four corners of the hanging wall (12), A lower knob (15) formed by projecting a part of the flange edge (13) in the outer peripheral direction, and the lid (2) is provided near the outer periphery of the horizontal step of the container body (1). Part (11), a horizontal flange (21) in contact with the vertical wall (22) suspended from the outer peripheral edge of the flange (21), and further from the lower end of the vertical wall (22) toward the outer peripheral direction. Extended horizontal flange
(23), an inward protruding portion (24) protruding toward the inner peripheral direction at the lower half of at least four corner portions of the vertical wall (22), and further, a part of the horizontal flange portion (23). And an upper knob (25) formed by projecting in the outer circumferential direction, and a flange edge (13) of the container body (1) and a flange portion (23) of the lid (2).
Are formed in substantially the same shape, and further, the outwardly protruding portion (14) of the container body (1) and the inwardly protruding portion (24) of the lid body (2).
Are formed so as to be engaged with each other when the lid is closed. 2. A hanging wall (12) of a container body (1) is provided with an outwardly projecting portion (14) projecting in an outer peripheral direction in an upper half portion of a portion other than the four corner portions, and a lid ( 2. The packaging container according to claim 1, wherein the vertical wall of (2) is provided with an inwardly protruding portion (24) protruding in the inner circumferential direction in a lower half of the portion other than the four corner portions. . 3. The packaging container according to claim 1, wherein the lid (2) is provided with a small hole (3) for air circulation.