JP2001219948A - Container made of synthetic resin - Google Patents

Abstract

PROBLEM TO BE SOLVED: To favorably and smoothly achieve the waste disposal of a container made of a synthetic resin by forming it so as to be capable of easily and reliably achieving volume reduction and by crushing it flat when it is disposed of. SOLUTION: The container made of a synthetic resin is formed so that its volume can be easily reduced by flatly crushing the whole of its cylindrical body 2. A lateral groove 5 molded in the form of a narrow groove is circumferentially provided in an upper part of the body 2. The height H1 of an upper end portion 2a of the body 2, which is positioned above the lateral groove 5, is set to be about one half of a diameter A1 of an upper end of the body 2, which extends in the crushing direction of the body 2. Inclined grooves 5a, each having a downward slope with respect to the crushing direction, are provided in the upper end portion 2a of the body 2 in a symmetrical manner at each of the fore, rear, right and left parts thereof. Vertical grooves 5b are provided in both side ends of a main body portion 2b of the body 2, which is positioned below the lateral groove 5, with respect to the crushing direction.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a volume-reducible synthetic resin container configured to facilitate disposal after use.

[0002]

2. Description of the Related Art Conventionally, synthetic resin containers such as used tube containers and bottle containers are flattened laterally (widthwise) to reduce the volume in order to facilitate disposal. It can be easily achieved.

[0003]

However, in these conventional containers made of synthetic resin which can be reduced in volume, the body can be crushed relatively easily, but the shoulder (in the case of a bottle container, it can be crushed). Since the shoulder and the bottom cannot be easily crushed, it has been difficult to sufficiently deform the entire body into a flat shape.

[0004] Even if the container is squashed flat, the synthetic resin container has a reverting property due to the elasticity of the material.
There is a problem that the flat shape due to the crushing is hard to be maintained, and a sufficient volume reduction state cannot be maintained.

Accordingly, the present invention has been made to solve the above-mentioned problems in the prior art, and is intended to reduce the flattening of a volume of a synthetic resin container which can be reduced by crushing when disposing of the container. It is an object of the present invention to easily and reliably achieve a technical problem, and to facilitate and facilitate the disposal process.

[0006]

Means for Solving the Problems Among the present invention for solving the above technical problems, the means according to the first aspect of the present invention can easily reduce the volume by crushing the entire cylindrical body flat. It is a synthetic resin container, and the upper part of the trunk is provided with a lateral groove formed in the shape of a narrow groove around the upper part of the trunk, and the height of the upper end of the trunk part above the lateral groove is along the crushing direction. To be set to approximately 1/2 of the diameter of the upper end of the torso, and to provide a slanting groove formed in the upper end of the torso with a downward slope in the crushing direction and in the shape of a narrow groove in the front-rear and left-right directions; A longitudinal groove formed in a narrow groove shape is provided at both end portions of the trunk main body portion below the lateral groove in the crushing direction.

When the body of the container is crushed from the front and back, the body is easily bent and deformed in the horizontal groove, the vertical groove, and the inclined groove, and becomes flat.

In this case, the height of the upper end portion of the trunk above the lateral groove is set to approximately 1/2 of the diameter of the upper end of the trunk along the crushing direction.
, The upper end of the trunk is bent by a lateral groove, the front and rear parts become eaves-like, and both sides are in a posture of widening and inclining downward. Is transformed into a reverse deformation,
The torso self-holds the flat deformation posture.

Next, the entire upper portion from the lateral groove is bent to the front or rear side by the lateral groove and folded, so that the entire container has no eave-shaped protruding portion, and is in a sufficiently flat and compact volume reduction state. .

[0010] The second aspect of the invention is the same as the first aspect of the invention, except that the entire body is made thin enough to be easily bent in each groove. .

According to the second aspect of the present invention, the flattening of the body by bending at the groove can be achieved very easily, and the synthetic resin required for molding one container. The amount of material can be reduced,
Thereby, a great resource saving effect can be obtained.

According to a third aspect of the present invention, an opening is provided at the upper end of the body of the first aspect of the invention via a shoulder, and the bottom of the body is formed of a flatly welded seal. , And configured as a tube container.

According to the third aspect of the present invention, since the bottom of the container is a flatly crushed seal portion, the crushing direction of the upper end portion of the body is the flat crushing direction of the seal portion. , The entire container can be in a flat volume-reduced state.

Further, in this tube container, most of the contents can be pushed out from the mouth by the reliable flattening by the crushing of the trunk and the self-holding property, and the folding of the upper part. The content remaining amount in the container can be greatly reduced.

According to a fourth aspect of the present invention, a mouth is provided at the upper end of the body of the first aspect of the invention via a shoulder, and the bottom of the body is formed of a bottom wall to form a bottle container. Configured
Things.

According to the fourth aspect of the present invention, even if the container has a bottle container structure, the upper end portion of the body can be flattened and deformed without being affected by the structure of the bottom portion. In addition, this crushed state can be maintained by itself.

According to a fifth aspect of the present invention, a lateral groove formed in a narrow groove shape is provided around the lower part of the body of the fourth aspect of the invention,
The height of the lower end of the trunk below the lateral groove is set to approximately 1/2 of the diameter of the lower end of the trunk along the crushing direction, and the lower end of the trunk is inclined upward in the crushing direction. And, an inclined groove formed in the shape of a narrow groove is provided symmetrically in the front-rear and left-right directions, and a longitudinal groove formed in the shape of a narrow groove is provided at both ends in the crushing direction of the body main portion between the upper and lower horizontal grooves. Is the thing.

According to the fifth aspect of the present invention, since the upper and lower ends of the body of the container having the bottle container structure are formed in the same manner, the mouth is included in a state where the body is crushed flat. By folding the lower end portion including the upper end portion and the bottom wall, the entire bottle container can be made flat and compact to reduce the volume.

According to a sixth aspect of the present invention, there is provided a cup-shaped container according to the first aspect of the present invention, wherein the upper end of the body is formed in an opening, and the bottom of the body is formed of a bottom wall. It is.

According to the sixth aspect of the present invention, even if the container has a cup-shaped container structure, the upper end portion of the body can be flattened and deformed without being affected by the structure of the bottom portion. And, this crushed state can be maintained by itself.

According to a seventh aspect of the present invention, a lateral groove formed in a narrow groove shape is provided around a lower portion of the trunk portion according to the sixth aspect of the present invention,
The height of the lower end of the trunk below the lateral groove is set to approximately 1/2 of the diameter of the lower end of the trunk along the crushing direction, and the lower end of the trunk is inclined upward in the crushing direction. And, an inclined groove formed in the shape of a narrow groove is provided symmetrically in the front-rear and left-right directions, and a longitudinal groove formed in the shape of a narrow groove is provided at both ends in the crushing direction of the body main portion between the upper and lower horizontal grooves. Is the thing.

In the invention according to claim 7, since the upper and lower ends of the body of the cup-shaped container are constructed in the same manner, the upper end including the opening is formed in a state where the body is crushed flat. By folding the lower end portion including the portion and the bottom wall, the entire bottle container can be made flat and compact in a reduced volume state.

According to the present invention, the upper end of the cylindrical body is formed in the opening, and the bottom of the body is formed by the bottom wall. It is a cup-shaped synthetic resin container that can be reduced in volume, and a horizontal groove formed in a narrow groove shape is provided around the lower part of the body, and the height of the lower end of the body below the horizontal groove is reduced. , To be set to approximately の of the diameter of the lower end of the body along the crushing direction, and to the lower end of the body, an inclined groove formed in an upward gradient with respect to the crushing direction and in a narrow groove shape. It is to provide a longitudinal groove formed in a narrow groove shape at both end portions in the crushing direction of the trunk main body portion above the lateral groove.

In the invention according to claim 8, in the process of crushing the container, the upper end opening is also flattened and deformed together with the trunk main portion, and the front and rear lower ends of the trunk are bent in an inverted eave shape. Displace.

According to a ninth aspect of the present invention, in addition to the constitution of the eighth aspect of the present invention, the entire body is made thin so that bending in each groove can be easily achieved. .

According to the ninth aspect of the present invention, the flattening of the body by bending the groove at the groove can be achieved very easily, and the synthetic resin required for molding one container. The amount of material can be reduced,
As a result, a large resource saving effect is exhibited.

Each of the horizontal, vertical and inclined grooves is
The groove structure is not limited to the groove structure depressed inward of the container, and may be a groove structure protruding outward of the container.

[0028]

Embodiments of the present invention will be described below with reference to the drawings. FIGS. 1 to 6 show a first embodiment in which the present invention is applied to a tube container. A tube container 1a has a cylindrical body 2 formed by blow molding, for example.
A cylindrical mouth 4 is integrally erected on the upper end of the cylindrical body via a tapered cylindrical shoulder 3 having a circular planar shape, and the lower end of the body 2 is flattened and welded. The portion 6 is formed by molding.

From the predetermined position of the upper part of the trunk 2, that is, from the peripheral edge of the shoulder 3 (the upper end of the trunk 2), a length of approximately 1/2 of the diameter A1 of the upper end of the trunk along the container crushing direction. In the lower position, a lateral groove 5 is formed which is formed into a narrow groove inwardly and is curved.

In the upper end portion 2a of the trunk above the lateral groove 5, there are four inclined grooves 5a which are inclined downward in the crushing direction and which are depressed and curved in the shape of a narrow groove inward. It is provided symmetrically.

The trunk main body portion 2b below the lateral groove 5
At both ends in the crushing direction, there are provided longitudinal grooves 5b which are depressed and bent into inwardly narrow grooves.

FIGS. 4 to 6 show the crushed state of the tube container 1a. When the body 2 is crushed from the front and back, the body 2 is provided with a lateral groove 5, a vertical groove 5b, and an inclined groove 5a.
, Each bends easily and flattens.

In this case, the height H1 of the upper end portion 2a of the trunk above the lateral groove 5 is formed to be approximately 1/2 of the diameter A1 of the upper end of the trunk, and as shown in FIG. The front and rear torso upper end portions 2a are bent and displaced in a substantially eaves-like manner, and the front and rear torso portions 2 are bent at substantially right angles at the lateral groove 5 portions. Then, it is sufficiently flattened and deformed.

Then, as shown in FIG. 6, the head portion 7 above the lateral groove 5 is folded in the lateral groove 5 in any of the front and rear directions so as to be fully flat and compact in size. Can be.

In the tube container 1a, the shoulder 3 may have an elliptical planar shape. In this case, the height H1 of the upper end portion 2a of the body is determined by the diameter A of the upper end of the body in the crushing direction.
In the case of approximately 1/2 of 1, that is, in the case of an elliptical shape, it is set to approximately 1/2 of the diameter in the short axis direction.

FIGS. 7 to 10 show a second embodiment in which the present invention is applied to a bottle container. The bottle container 1b has a cylindrical body 2 having a bottom wall 8 by, for example, blow molding. At the upper end, a cylindrical mouth 4 is integrally connected via a tapered cylindrical shoulder 3.

The upper and lower predetermined positions of the torso 2, that is, a position below the periphery of the shoulder 3 by approximately half the diameter A 1 of the upper end of the torso along the crushing direction, From the lower surface of the wall 8, the diameter of the lower end portion A2 of the trunk portion along the crushing direction is approximately 1
At the position above by the length of / 2, lateral grooves 5 which are depressed and curved and formed in a narrow groove inward are respectively provided.

The upper part 2a of the upper part of the trunk from the upper lateral groove 5
Is provided with four inclined grooves 5a which are downwardly inclined in the crushing direction and are depressed and curved in a narrow groove shape inwardly, symmetrically in the front-rear and left-right directions.

The lower end portion 2c of the lower trunk portion from the lower lateral groove 5
Is provided with four inclined grooves 5c which are inclined upward in the crushing direction and which are depressed and curved in a narrow groove shape inward, symmetrically in the front-rear and left-right directions.

The trunk main body portion 2 between the upper and lower lateral grooves 5
The b has a longitudinal groove 5b which is formed into a narrow groove inwardly in a curved shape at both ends in the crushing direction.

As described above, the height H1 of the upper end portion 2a of the upper body from the upper horizontal groove 5 and the height H2 of the lower end portion 2c of the lower body from the lower horizontal groove 5 are along the crushing direction. The upper and lower body portions A1 and A2 each have a length approximately equal to one-half the length of the lower body portion A1. The upper end portion 2a and the trunk lower end portion 2c are each bent and displaced in a substantially eave-like shape, and the front and rear trunk portions 2 are bent substantially perpendicularly in the upper and lower lateral grooves 5, so that the front and rear trunk main body portions 2b are mutually connected. , And are sufficiently flattened and deformed (see FIG. 9).

Next, as shown in FIG. 10, the head portion 7 above the upper lateral groove 5 and the bottom portion 9 below the lower lateral groove 5 are folded in either lateral direction in each lateral groove 5 to be folded. As a result, the whole can be sufficiently flattened and compactly reduced in volume.

The bottle container 1b may have an appropriate shape such as an elliptical shape or a square shape in addition to the circular shape of the shoulder portion 3 in a plan view.

FIG. 11 shows a third embodiment applied to a bottle container 1b in which the planar shape of the shoulder portion 3 is elliptical.
The configuration of each groove 5, 5a, 5b, 5c is the same as that of the second embodiment, but in this case, the container crushing direction is set to the short axis direction of the ellipse, and the positions of the upper and lower horizontal grooves 5 are set.

FIG. 12 shows a fourth embodiment applied to a bottle container 1b in which the planar shape of the shoulder 3 is substantially rectangular.
The configuration of each groove 5, 5a, 5b, 5c is the same as that of the second embodiment, but the direction of crushing the container in this case is the short side of the rectangle, and the positions of the upper and lower horizontal grooves 5 are set.

In the above-described second, third and fourth embodiments, the bottle container 1 in which the body upper end diameter A1 and the body lower end diameter A2 are substantially the same.
b, but in the fifth embodiment shown in FIG.
Is enlarged downward, and the lower end diameter A2 of the trunk is the upper end diameter A1 of the trunk.
The bottle container 1b formed much larger than the bottle container 1b is exemplified.

FIGS. 14 to 16 show a sixth embodiment in which the present invention is applied to a cup-shaped container.
c, the upper end of the cylindrical body 2 having the bottom wall 8 is configured as an opening 10 provided with a flange 11 on the periphery.

The configuration, position setting, and crushing of the upper and lower horizontal grooves 5, inclined grooves 5a and 5c, and vertical grooves 5b in the sixth embodiment are the same as those in the second embodiment.

FIGS. 17 and 18 show a seventh embodiment showing another embodiment of the cup-shaped container. This cup-shaped container 1c has the same structure as that of the sixth embodiment only at the lower portion of the body 2. Of the trunk main body portion 2b above the horizontal groove 5 and vertical grooves 5b are formed at both ends in the crushing direction.

In the process of crushing the cup-shaped container 1c, as shown in FIG. 18, the upper end opening 10 including the flange 11 is flattened and deformed together with the trunk main portion 2b, and the front and rear lower ends of the trunk are reduced. The portion 2c is bent and displaced in an inverted eave shape.

Each of the narrow grooves 5, 5a, 5
The groove structures b and 5c are not limited to a semicircular arc shape, but may be a U-shaped or V-shaped.

[0052]

Since the present invention has the above-described structure, the following effects can be obtained. When the body of the container is crushed from the front and back, the body is easily bent and deformed in the horizontal groove and the vertical groove provided at predetermined positions, and the inclined groove,
Flatten.

In this case, the height of the upper end of the torso above the lateral groove is set to approximately １ ／ of the diameter of the upper end of the torso along the crushing direction.
Since the upper and lower trunk portions are bent and displaced in a substantially eave-like manner, and the front and rear trunk portions are bent at substantially right angles in the lateral groove portions, the front and rear trunk main body portions are in close contact with each other. It approaches and is sufficiently flattened and deformed.

By bending the head portion above the lateral groove in the lateral groove in any one of the front and rear directions, the whole can be sufficiently flattened and compactly reduced, and the flattened volume can be reduced. The shape can be reliably maintained, and the disposal of the synthetic resin container can be suitably and smoothly achieved.

Further, when the container is a tube container, most of the contents can be pushed out from the mouth by reliable flattening by crushing the body and its self-holding property, and by folding the head portion. Thus, the remaining amount of the contents in the container can be greatly reduced.

[Brief description of the drawings]

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

FIG. 2 is an overall front view of the embodiment shown in FIG.

FIG. 3 is an overall side view of the embodiment shown in FIG. 1;

FIG. 4 is an overall perspective view showing the embodiment shown in FIG. 1 in a crushed state.

5 is an overall side view showing the embodiment shown in FIG. 1 in a crushed state.

FIG. 6 is an overall side view of the embodiment shown in FIG. 1 showing a partially bent state of the head.

FIG. 7 is an overall perspective view showing a second embodiment of the present invention.

8 is an overall front view of the embodiment shown in FIG. 7;

FIG. 9 is an overall side view showing the embodiment shown in FIG. 7 in a crushed state.

FIG. 10 is an overall side view of the embodiment shown in FIG. 7, showing a head portion and a bottom portion bent.

FIG. 11 is an overall perspective view showing a third embodiment of the present invention.

FIG. 12 is an overall perspective view showing a fourth embodiment of the present invention.

FIG. 13 is an overall perspective view showing a fifth embodiment of the present invention.

FIG. 14 is an overall perspective view showing a sixth embodiment of the present invention.

FIG. 15 is an overall perspective view showing the embodiment shown in FIG. 14 in a crushed state.

FIG. 16 is an overall side view showing the embodiment shown in FIG. 14 in a crushed state.

FIG. 17 is an overall perspective view showing a seventh embodiment of the present invention.

18 is an overall perspective view showing the embodiment shown in FIG. 17 in a crushed state.

[Explanation of symbols]

 1a; tube container 1b; bottle container 1c; cup-shaped container 2; trunk 2a; trunk upper end 2b; trunk main body 2c; trunk lower end 3; shoulder 4; mouth 5; lateral groove 5a; 5b; vertical groove 5c; inclined groove 6; seal portion 7; head portion 8; bottom wall 9; bottom portion 10; opening portion 11; collar portion A1; body upper end diameter A2; body lower end diameter H1; Height of upper end part H2; Height of trunk lower end part

Claims (9)

[Claims] 1. A synthetic resin container capable of easily reducing its volume by squashing the entire cylindrical body (2) flat, wherein a narrow groove is formed on the upper part of the body (2). A lateral groove (5) is formed around the body, and the upper end (2a) of the trunk above the lateral groove (5).
Height (H1), the body upper end diameter along the crushing direction
(A1) is set to approximately の, and an inclined groove (5a), which is formed in the upper end portion (2a) of the trunk portion and has a downward slope with respect to the crushing direction and is formed in a narrow groove shape, is symmetrical in the front-rear and left-right directions. A synthetic resin container having a longitudinal groove (5b) formed in a narrow groove shape at both end portions of the trunk main body portion (2b) below the lateral groove (5) in the crushing direction. . 2. The synthetic resin container according to claim 1, wherein the entire body (2) is made thin enough to be easily bent in each groove. 3. An opening at the upper end of the body (2) via a shoulder (3).
3. The synthetic resin product according to claim 1, wherein (4) is provided, and a bottom portion of the body portion (2) is formed by a flatly welded seal portion (6) to constitute a tube container (1a). container. 4. An opening at the upper end of the body (2) via a shoulder (3).
(4), and the bottom of the body (2) is attached to the bottom wall (8).
The synthetic resin container according to claim 1 or 2, wherein the container is formed as a bottle container (1b). 5. A narrow groove-shaped transverse groove (5) is provided under the body (2), and a lower end of the body below the transverse groove (5).
The height (H2) of (2c) is the trunk lower end diameter along the crushing direction.
(A2) is set to approximately の, and at the lower end portion (2c) of the body portion, an inclined groove (5c) formed in an upward gradient with respect to the crushing direction and formed in a narrow groove shape is symmetrical in the front-rear and left-right directions. And the upper and lower lateral grooves
(5) The synthetic resin container according to (4), wherein a longitudinal groove (5b) formed in a narrow groove shape is provided at both side ends of the intermediate body portion (2b) in the crushing direction. 6. A cup-shaped container (1c) having the upper end of a body (2) formed in an opening (10) and the bottom of the body (2) formed by a bottom wall (8). The synthetic resin container according to claim 1 or 2. 7. A narrow groove-shaped transverse groove (5) is provided under the body (2), and a lower end of the body below the transverse groove (5).
The height (H2) of (2c) is the trunk lower end diameter along the crushing direction.
(A2) is set to approximately の, and at the lower end portion (2c) of the body portion, an inclined groove (5c) formed in an upward gradient with respect to the crushing direction and formed in a narrow groove shape is symmetrical in the front-rear and left-right directions. And the upper and lower lateral grooves
7. The synthetic resin container according to claim 6, wherein a vertical groove (5b) formed in a narrow groove shape is provided at both end portions of the intermediate body portion (2b) in the crushing direction. 8. An upper end of a cylindrical body (2) is formed in an opening (10), and a bottom of the body (2) is formed by a bottom wall (8). A cup-shaped synthetic resin container which can be easily reduced in volume by being squashed flatly, and having a narrow groove (5) formed at the lower part of the body (2). Height (H2) of the lower end of the trunk (2c) below the lateral groove (5).
Is about 1/2 of the body lower end diameter (A2) along the crushing direction.
In the lower end portion (2c) of the trunk portion, an inclined groove (5c) which is formed in an upward slope with respect to the crushing direction and is formed in a narrow groove shape.
Are provided symmetrically in the front-rear and left-right directions, and at both end portions in the crushing direction of the trunk main body portion (2b) above the lateral groove (5),
A synthetic resin container provided with a vertical groove (5b) formed in a narrow groove shape. 9. The synthetic resin container according to claim 8, wherein the entire body (2) is made thin enough to be easily bent in each groove.