JPH11130107A - Thin container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a thin container wherein an ejection port can be always constantly opened to facilitate refill to another container, good storage is possible even if residual liquid remains after unsealing, the structure is extremely simple and inexpensive to manufacture, and since the container is formed of thin synthetic resin having shape retention, it can be reduced in weight and volume at the time of disposal. SOLUTION: The thin container comprises a synthetic resin container body 2 in a topped cylinder with an opening at a lower end face including a pair of left and right swells 6 swelling like a short cylinder at separate positions on a top plate 5 and a synthetic resin bottom lid 3 fixed to a lower face of the container body, wherein an inner diameter of one of the swells 6a is designed to be in such a size that can be fitted over an outer periphery of the other swell 6b.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a thin container.

[0002]

2. Description of the Related Art A container for accommodating a liquid cosmetic or the like is formed of a thick synthetic resin or glass having shape-retaining properties.
Conventionally, the contents are generally discarded after use. However, with the recent worsening of garbage disposal, it has been demanded to reduce the amount of waste as much as possible.

[0003] Against this background, recently, the contents have been stored in a simple refill bag, the contents have been refilled, and only the refill bag has been discarded. Since it is preferable to reduce the weight and bulk of these bags as much as possible at the time of disposal, for example, the liquids are hermetically sealed inside the bag made by bonding the inner surfaces of the plastic film to each other, and in use, for example, The storage section is opened by cutting and removing a part of the corner of the bag, and then the storage section is pressed to discharge the contents from the opening.

[0004]

However, since this kind of bag is cut and removed at the corner to open it, the opening is too small and takes a long time to pour out, or the bag is too large to inject the liquid. It is difficult to inject into the container, for example, the liquid is poured out in a direction that is not possible if the cutting angle is not good, or the shape is poor, and it is difficult to inject into the container. There is a disadvantage that.

[0005] In addition, once opened, there is a disadvantage that the contents must be kept open unless all the contents are transferred. In such a case, storage is extremely difficult due to lack of shape retention.

[0006] In view of the above, the present invention allows the spout port to be opened almost constantly at all times, facilitating injection into another container, and good storage even if there is residual liquid after opening. The structure is extremely simple, can be manufactured at low cost, and is made of thin synthetic resin with shape-retaining properties. Therefore, it proposes an excellent thin-walled container that can be reduced in weight and volume when disposed. .

[0007]

In order to solve the above-mentioned problems, a thin-walled container according to the first aspect of the present invention has a top-end cylindrical shape having an opening at a lower end surface formed by extending a top plate 5 from an upper end edge of a peripheral wall 4. A synthetic resin container main body 2 having a pair of left and right raised portions 6 protruding in a short cylindrical shape protruding at a position separated from the top plate 5, and an upper peripheral edge fixed to the lower surface of the main body to open the lower end opening of the main body 2. The bottom container 3 is made of a synthetic resin to be closed, and the inner diameter of one raised portion 6a is set to a size that can be closely fitted to the outer periphery of the other raised portion 6b.

The container according to the second aspect of the present invention is characterized in that the top plate 5
The thin-walled container according to claim 1, wherein the center is vertically divided into two parts, and a folding line a is provided which is provided on both ends of the peripheral wall 4 of the container body 2.

The container according to the third aspect of the present invention is characterized in that the top plate 5
Is formed so as to be inclined downward toward the folding line a.

In the container according to the present invention, the peripheral wall of the container main body is formed in a tapered shape whose diameter is reduced from the lower side to the upper side.

[0011]

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

The thin container 1 of the present invention comprises a container body 2 and a bottom cover 3. The container main body 2 is made of a thin synthetic resin, and has a top-end cylindrical shape with an opening at a lower end surface where a top plate 5 extends from the upper end edge of the peripheral wall 4. The thickness of the container body 2 is
Although slightly different depending on the resin used, it is preferable to configure as thin as possible while maintaining shape retention, for example,
It is good to select with a guide centered on 0.3 mm. However, the thickness is not limited to this value.

The specific shape of the container main body 2 may be a deformed cylindrical shape in which the lower part is cylindrical and the upper part is rectangular, as shown in the illustrated example, or other cylindrical, square, or other shapes. Cylindrical shape. Further, the container body 2 may be formed in a tapered shape whose diameter decreases as the peripheral wall 4 goes upward from below. With such a configuration, the container can be stood upright after liquid filling, and can be stacked before liquid filling.

Further, a pair of left and right raised portions 6 protruding in a short cylindrical shape is protruded from the top plate 5 of the container body 2 at a distance from the top plate 5.

One of the raised portions 6 is for forming a spout, and the other serves as a closing plug for closing the spout. In the present invention, the inner diameter of one of the raised portions 6a is configured to be a size that can be closely fitted to the outer periphery of the other raised portion 6b. Then, the tip of one protruding portion 6a is cut and removed to open the spout A, and the top plate 5 is folded so that the other protruding portion 6b fits tightly in the spout A.

Each of the protruding portions 6 of the present embodiment is in the form of a short cylinder whose upper end is closed and whose lower end is open, and has fitting projections 7 protruding from the respective peripheral walls. Each fitting ridge is a ridge having a cross-sectional shape protruding outward in a semicircular shape, and when one ridge 6a is fitted to the other ridge 6b, the other ridge 7 is fitted to the inner surface of the other ridge 7. The outer surface of the ridge 7 is fitted so that it is not easily removed by an external force.

The container body 2 is preferably provided with a folding line a. The fold line a is provided in order to bend the top plate 5 at that portion so that the top plate 5 can be easily folded.
The center is vertically divided back and forth and divided into two parts, and both ends are extended to a portion reaching the upper part of the main body peripheral wall 4. The fold line a may be provided only on the top plate 5.

Although the specific shape of the fold line a can be variously adopted, for example, as shown in the illustrated example, the fold line a can be configured as a ridge bulging in a semicircular shape whose cross section faces outward. Or,
It may be configured as a ridge bulging inward in a semicircular shape, or the portion may be formed in a thin line shape.

In the container having the folding line a formed therein, if the top plate 5 of the container body is inclined downward toward the folding line a, the folding can be performed more easily.

In the case of forming the container main body 2 configured as described above, for example, it can be formed by a sheet forming method such as vacuum-pressure forming using a synthetic resin sheet or film.

The bottom cover 3 is also made of a synthetic resin, and has an upper peripheral edge fixed to the lower surface of the main body 2 to close the lower end opening of the main body 2. As a fixing method, fusion can be employed, and adhesion using other adhesives can also be employed. In the illustrated example, a disc-shaped bottom lid upper peripheral edge is fused to the lower surface of the flange extending from the lower edge of the peripheral wall of the main body 2.

The case where the container constructed as described above is used will be described. The stored liquid is used by cutting off the tip of one protruding portion 6a from the state of FIG. 1 before opening. If there is any remaining liquid, the top plate 5 is folded at the fold line a, and the other raised portion 6b is fitted into the spout A to seal the spout A.

[0023]

As described above, the thin-walled container of the present invention can be opened by cutting and removing the tip of one of the raised portions of the short cylindrical shape by employing the above-described structure, and a substantially constant opening can be obtained at all times. It is easy to inject into other containers, etc., and the inner diameter of one raised part is configured to be a size that can be tightly fitted to the outer periphery of the other raised part, so even if there is residual liquid after opening, the opening part Can be tightly fitted to the other raised portion and closed, so that good storage of the residual liquid can be performed. In addition, it has the advantages that the structure is simple and that it can be formed in large quantities by sheet molding.

Further, since it is formed of a thin synthetic resin, it can be disposed of with a small weight or a small capacity.

Also, in the case where the center of the top plate is longitudinally cut back and forth and divided into two parts, and both ends are provided with fold lines extending to the upper part of the peripheral wall of the container body, the top plate can be folded very easily. As a result, the opening and closing of the opening can be performed more easily.

Further, in the case where the above-mentioned folding line is provided and the top plate is configured so as to be inclined downward toward the folding line, the top plate can be further easily folded.

Further, in the case where the peripheral wall of the container main body is formed in a tapered shape whose diameter is reduced as going upward from below, the standing stability of the container after liquid filling is increased, and Have the advantages of being stackable, not bulky, and taking up no extra space.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is a perspective view showing a state in which a spout is closed after opening of the embodiment.

FIG. 3 is a partially cutaway main part side view showing a state in which a spout is closed after opening of the embodiment.

[Explanation of symbols]

2 ... container body, 3 ... bottom lid, 4 ... peripheral wall, 5 ... top plate, 6, 6
a, 6b: ridge, a: fold line, A: outlet

Claims (4)

[Claims] A pair of left and right ridges protruding in a short cylindrical shape at a position separated from the top plate. A synthetic resin container main body 2 is provided, and a synthetic resin bottom lid 3 for fixing an upper peripheral portion to the lower surface of the main body and closing the lower end opening of the main body 2. The other ridge 6b
A thin-walled container having a size that can be closely fitted to an outer periphery. 2. A thin wall according to claim 1, wherein the center of said top plate is longitudinally cut longitudinally so as to be divided into two parts, and both ends are provided with fold lines a extending respectively in front and rear upper portions of the peripheral wall 4 of the container body 2. container. 3. The thin-walled container according to claim 2, wherein the top plate 5 is configured to be inclined downward toward the folding line a. 4. The thin container according to claim 1, wherein the peripheral wall of the container main body is formed in a tapered shape whose diameter is reduced as it goes upward from below.