JP7403999B2 - extruded container - Google Patents

Description

The present invention relates to extruded containers.

Squeeze bottles, tube containers, etc. have traditionally been used to store the contents of dough or paste foods such as mayonnaise, ketchup, grated wasabi, or grated ginger, or creamy cosmetics and facial cleansers. Extruded containers made of synthetic resin, whose bodies are deformed by pressure so that the contents can be squeezed out, are widely used.

For example, in Patent Document 1, by extrusion blow molding (EBM: Extrusion Blow Molding (hereinafter the same)) a synthetic resin material mainly made of low-density polyethylene, a cylindrical opening and a diameter from the lower end of the opening are formed. It has a bottle shape with a shoulder extending outward in the direction, a cylindrical body connected to the lower end of the shoulder, and a closing part (bottom) that closes the lower end of the body. A synthetic resin extrusion container is described that is configured to be deformable and squeeze out the contents.

Japanese Patent Application Publication No. 2015-143127

However, in the above-mentioned conventional extruded container, the upper end of the body is connected to the outer peripheral end of the shoulder extending radially outward from the lower end of the mouth. Since the parts are difficult to crush and it is difficult to push out the contents to the end, there is still room for improvement in terms of reducing the amount of remaining contents, especially near the shoulders and mouth.

In order to solve the problems in the prior art described above, the present invention provides a push-pull container that more effectively reduces the amount of content remaining near the shoulder and mouth by having a structure that is easier to crush than before. It is about providing.

Among the means for solving the above problems, the main means of the present invention are:
It has a closed bottom, a torso and a shoulder that are approximately elliptical in plan view and are connected in a height direction above the bottom, and a mouth tube that stands up on the shoulder. An extruded synthetic resin container comprising:
A vertical folded portion is formed at both ends of the body on the long axis side, and a horizontal folded portion is formed between the body and the shoulder.
A first shoulder side portion is formed on the front and rear surfaces of the shoulder portion, and is convex upward and has a substantially semi-elliptical shape when viewed from the front. The second shoulder side portion is formed in a substantially triangular shape when viewed from the side , and the first shoulder side portion is further provided with an extrusion portion that protrudes convexly toward the inside of the container. It is said to be a characteristic.
According to the main means of the present invention, the contents inside the body can be discharged by folding the body at the vertical folding portion. In addition, as for the remaining contents when there is little remaining, the remaining contents can be collected in the mouth tube and shoulder by folding the mouth tube and shoulder against the body at the horizontal folding section. The contents can be easily pushed out into the mouth barrel.
Furthermore, with the above means, the residual contents collected at the shoulder can be more actively pushed out toward the mouth barrel.

Another means of the present invention is the addition of a plurality of lateral grooves arranged along the horizontal folded portion to the above-mentioned main means.
With the above means, folding at the horizontal folding portion can be facilitated.

Further, according to another aspect of the present invention, in any of the above means, the lower end of the boundary between the first shoulder side portion and the second shoulder side portion has a straight line or a slightly substantially arcuate concave shape when viewed from the front. This means that it is formed as follows.
With the above means, it is possible to improve the operability during extrusion operation.

Further, another means of the present invention is to add to any of the above means the means by which both the horizontal folding portions provided at the front and rear are valley folded so that the first use state can be set. It is something that
With the above means, it is possible to collect the remaining contents in the shoulder and push them out, so that the remaining contents can be reduced.

Further, another means of the present invention is that one of the horizontal folding parts provided at the front and rear of the above-mentioned means is formed into a valley fold, and the other horizontal folding part is formed into a mountain fold. This is an additional means to allow the setting to be made.
With the above means, the residual contents collected in the shoulder can be dammed at the horizontal folding part and can be prevented from flowing back from the shoulder to the trunk side.

In the present invention, by making the shoulders and body part easier to fold than before, it becomes easier to push out the residual contents collected in the body part to the mouth barrel part, and as a result, the residual contents are reduced more effectively. be able to.

1 is a front view showing an extruded container as an example of the present invention. It is a side view of an extrusion container. A is a plan view of the extrusion container, B is a plan sectional view taken along the line AA in FIG. 1, and C is a bottom view of the extrusion container. FIG. 3 is a side view of the extruded container in a first usage state. It is a partial side view of the extrusion container which shows a 2nd use state. It is a partial front view of the extrusion container which shows a 2nd use state. It is a top view of the extrusion container which shows a 2nd use state.

Embodiments of the present invention will be described below with reference to the drawings.
In the following, as shown in FIG. 3A, the front side of the extrusion container will be referred to as the front side a, and the back side that is the opposite side will be referred to as the rear side b. Also, when viewed from the front a, the right side is called right side c, and the left side is called left side d. Further, the direction of rotation around the container axis O is defined as the circumferential direction, the direction along the container axis O is defined as the vertical direction (or height direction), and the direction orthogonal thereto is defined as the horizontal direction.

The extruded container 1 of the present invention is used to store contents such as mayonnaise, ketchup, grated wasabi, grated ginger, or other paste-like foods, cream-like cosmetics, facial cleansers, etc. However, it is not limited to these.
As shown in FIGS. 1 to 3, the extruded container 1 has a body 4 connected to the bottom 5 provided at the lowest part, and a shoulder 3 connected to the center of the shoulder 3 connected to the body 4. A cylindrical mouth tube part 2 is provided in an upright manner. Such an extruded container 1 is formed by, for example, extrusion blow molding (EBM) a parison (not shown) made of a synthetic resin material such as polypropylene (PP) or polyethylene (PE).

The body 4 is formed into a substantially elliptical shape (also called cat's eye shape) in plan view, and has a wall extending in the height direction along the container axis O at both ends on the right side c and the left side d, which are the right axis sides. Vertical folded portions 6 are formed respectively. The body part 4 can be elastically deformed inward at vertical folding parts 6 provided at both ends of the right side c and the left side d, where the body part 4 at the front a and the body part 4 at the rear b contact each other. It is composed of
Note that the deformation of the body portion 4 may be elastic deformation as described above, or may be plastic deformation.

The shoulder part 3 is provided between the mouth barrel part 2 and the body part 4, and as shown in FIG. A first shoulder side portion 3A is formed with a substantially semi-elliptical surface when viewed from the front and has a convex shape, and second shoulders are formed on the right side c and the left side d of the shoulder portion 3 and are formed from a generally triangular surface when viewed from the side. A side portion 3B is formed. The first shoulder side portion 3A and the second shoulder side portion 3B are bent at a boundary side 3C provided therebetween.
As shown in FIG. 1, the boundary side 3C is formed into a substantially semi-elliptical shape (substantially semi-cat-like) with a central portion convex upward in the figure. It is preferable that the lower end of the boundary side 3C has a straight line or a slightly substantially arcuate concave shape and extends toward the upper end of both vertical folded portions 6 provided on the right side c and the left side d.

A horizontal folded part 7 is provided around the boundary between the first shoulder side part 3A of the shoulder part 3 and the body part 4 (the part along line AA in FIG. 1). A plurality of lateral grooves 8 (in this embodiment, two in the front a and two in the rear b, a total of four) formed in a narrow groove shape toward the inside are arranged intermittently in the circumferential direction. The first shoulder side portion 3A has a substantially semicircular shape in plan view at the center position of the front a (the same applies to the rear b) and between the lateral groove 8 on the right side c and the lateral groove 8 on the left side d. An extruded portion 9 is formed in a concave manner. The extruded portion 9 protrudes in a convex shape from the inner surface of the first shoulder side portion 3A toward the inside of the container, and the lower end portion 9a of the extruded portion 9 is located above the horizontal folded portion 7 (line AA in FIG. 1). It is set in.
The first shoulder side part 3A of the shoulder part 3 can be folded in a valley-fold shape with respect to the body part 4 at the horizontal folding part 7 (line AA in FIG. It is configured to be elastically deformable toward the inside of the container where the rear body portion 4 and the body portion 4 are in contact with each other (see FIG. 4).
Although it is possible to fold at the horizontal folding part 7 even if a plurality of grooves 8 are not formed, by providing a plurality of grooves 8 along line AA in FIG. It becomes possible to make it easy to fold.

The mouth tube portion 2 has a male thread 2a carved on its outer circumferential surface, allowing a cap (not shown) to be screwed onto the mouth tube portion 2. In addition, the bottom part 5 is closed via a cutout part 5a, which is a cutout mark at the lower end of the parison, as shown in FIG. Before extruding the contents, the cap is unscrewed and removed from the mouth barrel portion 2, and then the contents are extruded as described below. Further, when the cap is a lid body without a discharge port, the spout portion 3 functions as a discharge port for the contents.

Next, the functions and effects of the extruded container 1 having the above structure will be explained with reference to FIGS. 4 to 7.
In the extruded container 1 of the present invention, when the body 4 is pressed inward, the body 4 is folded at the vertical folds 6 at both ends, that is, the body 4 at the front a and the body 4 at the rear b. are in contact with each other and are deformed into a substantially flat shape, making it possible to discharge the contents housed in the barrel section 4 to the outside through the mouth tube section 2.

When most of the contents have been discharged and the remaining amount of the contents in the extrusion container 1 is small, for example, the extrusion container 1 may be placed in an inverted position to collect the contents near the mouth tube portion 2 and the shoulder portion 3. After that, as shown in FIG. 4, the first use state is set in which the first shoulder side portion 3A of the shoulder portion 3 is folded in a valley-fold shape with respect to the body portion 4 at the horizontal folding portion 7.

In the first usage state, the first shoulder side portion 3A is folded into a valley-fold shape at the horizontal folding portion 7, and at the same time, at the boundary side 3C, both first shoulder side portions 3A provided at the front a and the rear b are folded into a valley-fold shape. It is bent into a mountain-fold shape with respect to the second shoulder side portion 3B, and both first shoulder side portions 3A approach the lower end of the mouth tube portion 2 (see FIG. 4). Thereby, both the first shoulder side parts 3A can push the residual contents gathered inside the shoulder part 3 into the mouth barrel part 2 side.

At this time, a pair of push-out portions 9 provided on both first shoulder side portions 3A and protruding convexly toward the inside of the container push out the remaining contents within the shoulder portion 3 toward the mouth barrel portion 2. becomes possible. Therefore, the remaining contents are more easily pushed into the mouth barrel part 2 side than before, and can be pushed out to the outside through the mouth barrel part 2, so that the amount of remaining contents can be effectively reduced.

Next, for a small amount of residual content that cannot be pushed out even in the first use state, as shown in FIGS. By folding the shoulder side portion 3A into a mountain fold shape, and by folding the first shoulder side portion 3A into a valley fold shape with respect to the body portion 4 at the horizontal folding portion 7 provided at the rear b, the mouth tube portion 2 is formed as a whole. Then, the container is set to a second use state in which the shoulder portion 3 is folded at approximately 90 degrees with respect to the container axis O.

In the second use state, the lower ends 9a of the pair of extrusion parts 9 provided on both first shoulder side parts 3A and protruding convexly toward the inside of the container approach each other, and the front view shown in FIG. Now, the pair of extruded parts 9 come to face the mouth tube part 2 in a generally circular shape. In this state, as shown by the white arrows in FIGS. 5 and 7, it becomes possible to press the pair of extrusion parts 9 toward the tip of the mouth barrel part 2 with the thumbs of both hands, respectively. Therefore, this pressure makes it possible to push the remaining contents into the mouth barrel part 2 more actively, and as a result, the contents can be easily pushed out through the mouth barrel part 2, and the remaining contents can be pushed out more effectively. It is possible to reduce the

Furthermore, in the second use state, the space between the shoulder portion 3 and the body portion 4 is bent at approximately 90 degrees at the horizontal folding portion 7, so that residual contents are collected in the space from the shoulder portion 3 to the mouth tube portion 2. At the same time, when pressed, it is possible to dam up the collected residual contents and prevent them from flowing back from the shoulder section 3 to the body section 4 side. Therefore, it becomes possible to reliably push the remaining contents into the mouth barrel portion 2.

Furthermore, in a preferred embodiment in which the lower end of the boundary side 3C is formed in a straight line or in a slightly substantially arcuate concave shape, in the second use state, the upper surface of the second shoulder side 3B is also straight, as shown in FIG. It becomes a shape or a slight concave shape. Therefore, at the rear position b, it becomes possible to easily press down the second shoulder side portion 3B with the pad of the index finger or the like. Further, at the forward position a, it becomes possible to easily press the pair of extrusion parts 9 provided on both first shoulder side parts 3A toward the mouth barrel part 2 using the remaining thumb. Therefore, it becomes possible to improve the operability during the extrusion operation, and it becomes possible to extrude the remaining contents more effectively than ever before.

Although the structure of the present invention and its effects have been described above with reference to Examples, the embodiments of the present invention are not limited to the above-mentioned Examples.
For example, in the second usage state of the above-described embodiment, the mouth tube part 2 and the shoulder part 3 are shown and described as being folded backward b, but they may be folded forward a.

Further, in the above embodiment, the shape of the extruded portion 9 has been described as being approximately semicircular, but the extruded portion 9 is not limited to the approximately semicircular shape, and may have other shapes.

Further, in the above embodiment, a bottle-shaped container in which the bottom part 5 is closed via the cutout part 5a is shown and explained as the easy extrusion 1, but the present invention is not limited to this, and the bottom part 5 is in a flat shape. It may also be a sealed tube-shaped container.

The present invention can be applied to a wider range of applications in the field of extruded containers.

1: Extruded container 2: Mouth part 2a: Male screw 3: Shoulder part 3A: First shoulder side part 3B: Second shoulder side part 3C: Boundary side 4: Body part 5: Bottom part 5a: Cut-off part 6: Vertical Folded part 7: Horizontal folded part 8: Horizontal groove 9: Extruded part 9a: Lower end a: Front b: Rear c: Right d: Left O: Container axis

Claims (5)

A closed bottom part (5), a body part (4) and a shoulder part (3) having a substantially elliptical shape in a plan view, which are connected in a row on the bottom part (5) along the height direction, and the shoulder part An extruded container made of synthetic resin, comprising a mouth tube part (2) standing upright on (3),
A vertical folded portion (6) is formed at both ends of the long axis side of the body portion (4), and a horizontal folded portion (7) is formed between the shoulder portion (3) and the body portion (4). has been
On the front (a) and rear (b) surfaces of the shoulder portion (3), there is a first shoulder side portion (3A) that is convex upward and has a substantially semi-elliptical shape when viewed from the front. A second shoulder side portion (3B) having a substantially triangular shape in side view is formed on the right (c) and left (d) surfaces of the shoulder portion (3),
The push-out container further comprises a push-out portion (9) that projects inwardly of the container on the first shoulder side portion (3A). 2. The extruded container according to claim 1, wherein a plurality of transverse grooves (8) are arranged along the horizontal fold (7). A claim in which the lower end of the boundary side (3C) between the first shoulder side part (3A) and the second shoulder side part (3B) is formed in a straight line or in a slightly substantially arcuate concave shape when viewed from the front . The extruded container according to item 1 or 2. The device according to any one of claims 1 to 3 , wherein the horizontal folding portions (7) provided at the front (a) and the rear (b) are both valley-folded to be set to the first use state. Extruded container. By making one of the horizontal folding parts (7) provided at the front (a) and the rear (b) a valley fold and the other horizontal folding part (7) a mountain fold, the second use state can be set. The extruded container according to any one of claims 1 to 4 .

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