JPH10316140A - Synthetic resin container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a synthetic resin container which can pour out contents by attaching a pump on the cylindrical mouth part provided in the upper part and also can reduce its volume by folding it in disposing. SOLUTION: The side faces of the container comprise a front face panel part 11, a back face panel part, a left side panel part and a right side panel part 14. The upper part of the container comprises an upper face panel part 15 and the lower face comprises an bottom face panel part. The upper face panel part 15 is provided continuously with a cylindrical mouth part 17. The outer periphery of the mouth part 17 is formed with an external thread 18. Moreover, this container is structured roughly in a rectangular parallelepiped, and hard and high density polyethylene is used along its four longitudinal ridges and soft and low density polyethylene is used for the rest. Furthermore, in order to make it foldable, a rib for folding 30, 31, 32, 33, 35, 36 are formed at a necessary position.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a synthetic resin container, and more particularly, to a synthetic resin container having a substantially rectangular parallelepiped shape and having a cylindrical opening formed on an upper plate.

[0002]

2. Description of the Related Art Conventionally, synthetic resin containers have been used to fill and supply contents such as shampoos, rinses, and body soaps. This type of container has a cylindrical mouth at the top, and a simple pump can be attached to the cylindrical mouth via a cap. And by pressing the pressing part on the pump, shampoo, rinse,
Body soap and the like are poured out. Therefore, a required amount of shampoo, rinse or body soap can be easily poured and used.

[0003]

Conventional containers such as shampoos, rinses, body soaps and the like are constituted by relatively thick containers made of synthetic resin. This is because the pump is attached to the cylindrical mouth via the cap, and if the container is deformed when pressed, the pump will not operate properly. That is, the container has a buckling strength that does not deform even when a force for pressing the pump is applied, and maintains a formed shape in a normal use state.

[0004] Containers for filling such shampoos, rinses, body soaps, etc., maintain their original shape when they are emptied and are therefore bulky and obstructive. Is increased.

Therefore, attempts have been made to fill and supply refillable pouches with shampoo, rinse, or body soap so that a container equipped with such a pump can be used repeatedly. Such pouches are referred to as standing pouches because they can be displayed or stored upright when sold or stored. Because the pouch is made of flexible sheets, the contents can be transferred to an empty container, and then the empty pouch can be folded flat and subsequently bulky when discarded. Absent.

However, soaps and surfactants used for the human body, such as shampoos, rinses, body soaps, and the like, cannot be tracked in the event of an accident due to the loss of the lot number after refilling. The problem arises. In particular, since the rinsing has a high viscosity, it is difficult to refill the rinsing when the temperature is low, and the manufacturing cost of filling the standing pouch is high.

The present invention has been made in view of such problems, and has sufficient strength during normal use. An object of the present invention is to provide a synthetic resin container that is not deformed by itself, and is folded small when discarded.

[0008]

SUMMARY OF THE INVENTION The present invention has a substantially rectangular parallelepiped shape, a cylindrical mouth portion is continuously provided on an upper surface plate portion, and has a size smaller than the width of the front plate portion and the rear plate portion in the width direction. A synthetic resin container having a width in the width direction of the side plate portion reduced and having a substantially rectangular cross section, wherein the side plate portion has a bending rib extending in a height direction at a center portion in the width direction. Is formed, and an upper end of the bending rib is connected to a bending rib branched in two directions so as to extend in a direction of a corner between the upper plate portion and the side plate portion, and the bending rib extends in the height direction. The lower ends of the ribs are connected to bending ribs branched in two directions so as to extend in the direction of the corners of the bottom plate and the side plate,
A bend rib extending in the height direction is formed at a ridgeline portion between the front plate portion and the back plate portion and the side plate portion, and the front plate portion and the back plate portion are folded in the height direction of the side plate portion. Bending ribs extending in the lateral direction are formed at a height substantially corresponding to the upper and lower branching portions of the bending ribs, and both right and left ends of these ribs extend beyond the bending ribs of the ridge line portion to the side plate portion. Extending, and the material of the ridge portion of the front plate portion and the back plate portion and the side plate portion is made of a hard material,
The present invention relates to a synthetic resin container characterized by the above.

The material forming the ridge between the front plate, the back plate and the side plate is high-density polyethylene, and the other parts of the front plate, the back plate and the side plate are low. It may be composed of high density polyethylene.

According to another aspect of the present invention, a substantially rectangular parallelepiped shape, a cylindrical mouth portion is continuously provided on the upper plate portion, and the width of the side plate portion is smaller than the width dimension of the front plate portion and the back plate portion. The dimension of the direction is small, the cross section is a synthetic resin container having a substantially rectangular shape, the side plate portion is formed with a bending rib extending in the height direction at the center in the width direction, An upper end of the bending rib is connected to a bending rib branched in two directions so as to extend in a direction of a corner between the upper plate portion and the side plate portion, and a lower end of the bending rib extending in the height direction is 2 so as to extend in the direction of the corner between the bottom plate and the side plate.
A bending rib extending in a height direction is formed at a ridge portion between the front plate portion, the back plate portion, and the side plate portion, the bending plate being connected to the front plate portion and the back plate portion. In the portion, bending ribs extending in the lateral direction are formed at a height substantially corresponding to the upper and lower branch portions of the bending ribs in the height direction of the side plate portion, and both right and left ends of these ribs are the ridge line portions. The bending ribs are extended to the side plate portion, and the portions where the bending ribs are formed are each made of a soft material, and the other portions are made of a hard material. And a synthetic resin container.

The portion where the bending rib is formed may be made of low-density polyethylene, and the other portion may be made of high-density polyethylene.

[0012]

1 and 2 show a polyethylene shampoo container according to an embodiment of the present invention. This container has a substantially rectangular parallelepiped shape as a whole, and the side surface of the container has a front plate portion 11 and a back plate portion 1.
2, a left side plate 13, and a right side plate 14. In addition, the upper part of the container is constituted by an upper plate part 15 and the lower part is constituted by a bottom plate part 16.
In addition, a cylindrical mouth portion 17 is connected to the upper surface plate portion 15. A male screw 18 is formed on the outer peripheral surface of the mouth 17.

A cap 21 is screwed into the mouth 17 having such a male screw 18. Moreover, the cap 21 supports a pump 22 of a pressing type. A piston 23 for operating the pump 22 extends upward from the cap 21 and has a pressing portion 2 at its upper end.
4 are provided. The pressing portion 24 is configured to be pressed by hand, and furthermore, a spout 25 is formed so as to protrude laterally. The pump 22 includes a suction tube 26 extending downward. The suction tube 26 extends to a length substantially in contact with the upper surface of the bottom plate 16 of the container.

Next, a structure for folding such a synthetic resin container will be described. Bending ribs 30 extending in the height direction are formed in the left and right side plate portions 13 and 14 substantially at the center in the width direction, respectively. Have been. These ribs 30
Ends at a position apart from the top plate 15 and the bottom plate 16 except for half the width of the top plate 15 and the bottom plate 16. A bifurcated bending rib 31 is connected in a Y-shape to the upper end of the bending rib 30 in the height direction. The branched bending ribs 31 extend to the corners between the left and right side plate portions 13 and 14 and the upper surface plate portion 15. A branched bending rib 32 is formed at a lower end portion of the bending rib 30 in the height direction.
These ribs 32 extend to the corners between the side plates 13 and 14 and the bottom plate 16.

The rectangular parallelepiped container has left and right side plates 13 and 14, a front plate 11 and a back plate 1.
A bending rib 33 is formed along a ridge line between the two. The ribs 33 for bending the ridge portion are the side plate portions 1 described above.
The upper and lower plate portions 16 and 16 are slightly longer than the ribs 30 for bending in the height direction of the upper and lower plates 3 and 14.
With a slight gap between them.

Further, this container has bending ribs 35, 3 extending laterally on the front plate portion 11 and the rear plate portion 12, respectively.
6 is provided. The upper lateral bending rib 35 is located at substantially the same height as the terminal point of the height direction bending rib 30 and the connection point with the branched bending rib 31. On the other hand, the lower lateral bending rib 36 is located at the lower end of the height direction bending rib 30 and near the branching point with the branched bending rib 32.

The synthetic resin container is formed of a blow-molded body or a vacuum-formed body of polyethylene.
Moreover, it is composed of two types of resins, low density polyethylene and high density polyethylene. The ridge portions of the front and rear plate portions 11 and 12 and the left and right side plate portions 13 and 14 are formed of high hardness portions 40 made of high-density polyethylene. Such high hardness portions are indicated by dots, and as is apparent from the drawing, four high hardness regions extending in the height direction radially extend from the ridge line portion to the upper surface plate portion 15, The bottom plate 16 also extends in a V-shape.

The high-hardness portion made of such high-density polyethylene gives the container the required strength,
In particular, the container is not deformed when the pump 22 is used. Moreover, the ribs 30, 31, 3 are made of flexible low-density polyethylene as a whole.
Cooperation with 2, 33, 35, 36 makes it foldable.

Next, a method of using such a synthetic resin container will be described. In a normal use state, it is used as shown in FIGS. That is, the container is filled with, for example, shampoo and the like. Then, a pump 22 is attached to the mouth 17 via a cap 21.
When the pressing portion 24 of the pump 22 is pressed, the suction tube 26
The shampoo inside is sucked through the shampoo, and the shampoo is discharged through the spout 25 of the pressing portion 24, so that the shampoo to be used can be easily taken out.

When the shampoo in such a container has been completely emptied, the cap 21 is removed and the pump 22 is removed. After that, as shown in FIG. 3 and FIG. 4, it is folded flat. First, the folding operation is performed by firstly bending the ribs 30 in the height direction extending to the center of the left and right side plate portions 13 and 14 and the upper and lower branched ribs 3.
The left and right side plate portions 13 and 14 are folded inward by 1 and 32, and the front plate portion 11 and the back plate portion 12 are crushed flat so as to overlap each other. At this time, as shown in FIG. 3, the top plate portion 15 and the bottom plate portion 16 maintain a vertical state, and the lateral bending provided on the front plate portion 11 and the back plate portion 12 respectively. The front plate portion 11 and the back plate portion 12 are folded inward at upper and lower portions by the ribs 35 and 36 for use.

Thereafter, the top plate 15 and the bottom plate 16 are bent at right angles as shown in FIG. This bending is performed by folding the front plate 11 and the rear plate 12 toward the front plate 11 at the upper and lower horizontal bending ribs 35 provided on the front plate 11 and the rear plate 12, respectively. This is done by bending.

As described above, the polyethylene container according to the present embodiment is a container having a rectangular parallelepiped shape,
In particular, bending ribs 30, 31, 32, 33, 35, 3
6 are formed at the positions shown in FIG.
And as shown in FIG. For this reason, a volume reduction effect can be produced at the time of disposal, which greatly contributes to the reduction of waste. That is, when discarded when not in use, garbage is not bulky.

In this container, only the container body can be used as a disposable container, and the pump 22 attached to the cap 21 can be used repeatedly as needed. In this case, the cap without the pump 22 may be removed from the mouth 17 of the new container filled with shampoo, and then the pump 22 may be attached by screwing the cap 21 removed from the previous empty container. . Such an operation can be easily performed by the consumer.

That is, by making the pump 22 replaceable and disposing of the container body, the container body filled with the contents does not change, so that the lot number displayed on the container is not lost. This makes it easy to follow up when an accident occurs. In addition, as described above, after use, only the container body can be folded and reduced in volume to be discarded.

Next, another embodiment will be described with reference to FIG. The overall shape of the embodiment and the ribs 30, 31,
The shapes of 32, 33, 35 and 36 are the same as in the above embodiment. The feature of this embodiment is that, as a whole, the region 40 where the bending ribs 30, 31, 32, 33, 35, and 36 are formed is made of low-density polyethylene, while the ribs 30, 31, 32, 33, 35, and 36 are formed. That is being done.

That is, in this embodiment, only the portion 40 where the bending ribs 30, 31, 32, 33, 35, 36 are formed can be easily bent as shown by dots in FIG. It is made of flexible, low-density polyethylene, and the other parts are made of hard, high-density polyethylene. Therefore, the bending ribs constituting the bent portion can be easily bent, and the other portions are provided with a required buckling strength by high-density polyethylene and have a shape maintaining function. Therefore, there is no particular problem in using the pump 22, and the pump 22 can be crushed flat only when discarded.

[0027]

As described above, according to the present invention, a bending rib extending in the height direction is formed at the center in the width direction of the side plate of the synthetic resin container having a substantially rectangular parallelepiped shape. The upper end of the rib is connected to a bending rib that branches in two directions so as to extend in the direction of the corner between the top plate and the side plate, and the lower end of the bending rib that extends in the height direction has a bottom plate and a side plate. A bending rib extending in the height direction is formed at a ridge portion between the front plate portion, the back plate portion, and the side plate portion so as to extend in a direction of a corner of the front plate portion, the back plate portion, and the side plate portion. The front and rear plate portions are formed with bending ribs extending laterally at a height substantially corresponding to the upper and lower branch portions of the bending ribs in the height direction of the side plate portion. Ends extend beyond the ridge line bending ribs to the side plate, It is obtained by constituting the material of the ridge portion between the plate portion and rear plate portion and side plate portions of hard material.

Therefore, according to the present invention, it is possible to fold when discarding after use by using the folding ribs formed at required portions, and the container can be bulky when discarding. Absent. Also, since the ridges of the four corners extending in the vertical direction are made of a hard material, they have sufficient buckling strength, maintain a predetermined shape in use, and attach a pump to the cylindrical mouth. However, it can be used sufficiently.

According to another aspect of the present invention, a bending rib extending in a height direction is formed at a center portion in a width direction of a side plate portion of a synthetic resin container having a substantially rectangular parallelepiped shape. A lower end of the bending rib extending in the height direction is connected to a bending rib branched in two directions so as to extend in a direction of a corner between the face plate portion and the side plate portion. The front plate, the back plate, and the ridge portion of the side plate are formed with a bending rib extending in the height direction, and the front plate and the spine are connected to each other. On the face plate portion, bending ribs extending in the horizontal direction are formed at a height substantially corresponding to the upper and lower branch portions of the bending ribs in the height direction of the side plate portion, and both left and right ends of these ribs are ridge line portions. Extends beyond the bending ribs to the side plate, and the bending ribs are shaped As well as forms a location which has changed from soft material respectively, is obtained by constituting the other parts from hard materials.

Therefore, according to such a configuration, the container can be folded using the folding rib when discarded after use, and the container does not become bulky when discarded. Since such a bending rib is provided at a portion made of a soft material, the bending is easily performed. Moreover, since it is made of a hard material as a whole, it has the required strength and can maintain its shape stably.
Even if a pump is attached to the cylindrical mouth, it can be used sufficiently.

[Brief description of the drawings]

FIG. 1 is an external perspective view of a synthetic resin container according to a first embodiment.

FIG. 2 is a vertical sectional view of the container.

FIG. 3 is an external perspective view showing a folded state.

FIG. 4 is an external perspective view of a folded state.

FIG. 5 is an external perspective view of a synthetic resin container according to a second embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 Front plate part 12 Back plate part 13 Left side plate part 14 Right side plate part 15 Top plate part 16 Bottom plate part 17 Mouth part 18 Male screw 21 Cap 22 Pump 23 Piston 24 Pressing part 25 Outlet 26 Suction cylinder 30 Height direction folding Bending ribs 31 Branched bending ribs (top) 32 Branched bending ribs (bottom) 33 Ridge portion bending ribs 35 Lateral bending ribs (top) 36 Lateral bending ribs (Bottom) 40 High hardness part (dotted area)

Claims (4)

[Claims] A substantially rectangular parallelepiped shape, a cylindrical mouth portion is continuously provided on the upper surface plate portion, and the width of the side plate portion in the width direction is smaller than the width size of the front plate portion and the rear plate portion. A synthetic resin container having a small cross section and a substantially rectangular cross section, wherein a bending rib extending in a height direction is formed at a center portion in a width direction of the side plate portion. The upper end of the rib extends in the direction of the corner between the upper plate and the side plate.
A lower end of the bending rib extending in the height direction, the lower end of the bending rib extending in the height direction, the lower end of the bending rib extending in the direction of the corner of the bottom plate portion and the side plate portion; Bending ribs extending in the height direction are formed at ridge portions between the front plate portion and the back plate portion and the side plate portion, and the height of the side plate portion is formed at the front plate portion and the back plate portion. Bending ribs extending in the horizontal direction are formed at a height substantially corresponding to the upper and lower branch portions of the bending ribs in the direction, and both right and left ends of these ribs extend beyond the bending ribs of the ridge line portion. A synthetic resin container extending to the side plate portion, wherein a material of a ridge line portion between the front plate portion, the back plate portion, and the side plate portion is made of a hard material. 2. A high-density polyethylene is used as a material forming a ridge portion between the front plate portion, the rear plate portion, and the side plate portion, and the other portions of the front plate portion, the back plate portion, and the side plate portion are provided. The container made of synthetic resin according to claim 1, wherein is made of low-density polyethylene. 3. A substantially rectangular parallelepiped shape, a cylindrical mouth portion is continuously provided on the upper surface plate portion, and the width dimension of the side plate portion is smaller than the width dimension of the front plate portion and the rear plate portion. A synthetic resin container having a small cross section and a substantially rectangular cross section, wherein a bending rib extending in a height direction is formed at a center portion in a width direction of the side plate portion. The upper end of the rib extends in the direction of the corner between the upper plate and the side plate.
A lower end of the bending rib extending in the height direction, the lower end of the bending rib extending in the height direction, the lower end of the bending rib extending in the direction of the corner of the bottom plate portion and the side plate portion; Bending ribs extending in the height direction are formed at ridge portions between the front plate portion and the back plate portion and the side plate portion, and the height of the side plate portion is formed at the front plate portion and the back plate portion. Bending ribs extending in the horizontal direction are formed at a height substantially corresponding to the upper and lower branch portions of the bending ribs in the direction, and both right and left ends of these ribs extend beyond the bending ribs of the ridge line portion. A synthetic resin container, which extends to a side plate portion, and further includes a portion where the bending ribs are formed, each of which is made of a soft material, and other portions which are made of a hard material. 4. The synthetic resin according to claim 3, wherein the portion where the bending rib is formed is made of low-density polyethylene, and the other portion is made of high-density polyethylene. Container.