WO2002032777A1

WO2002032777A1 - Liquid container and method of refilling refill liquid in the liquid container

Info

Publication number: WO2002032777A1
Application number: PCT/JP2001/006957
Authority: WO
Inventors: Hiroyuki Kimura; Kumiko Azuma
Original assignee: Kanebo, Limited
Priority date: 2000-10-17
Filing date: 2001-08-10
Publication date: 2002-04-25
Also published as: AU2001277771A1; JPWO2002032777A1

Abstract

A liquid container, comprising a pump means (2) capable of discharging a constant amount of the liquid filled in a bottle-shaped container (1) detachably installed at the mouth part (1a) of the bottle-shaped container (1), wherein the mouth part (1a) of the bottle-shaped container (1) is formed wide, and the pump means (2) is attached to the mouth part (1a) of the bottle-shaped container (1) through a joint cap (3) having a large diameter screw part (3a) threaded with the wide mouth part (1a) provided on the lower part thereof and a small diameter screw part (3b) threaded with the pump means (2) provided on the upper part thereof, whereby refill liquid can be surely poured into the liquid container in a stable condition, an easiness of handling can be improved, and a desired strength can be provided with a uniform wall thickness.

Description

Description · Liquid container and method for refilling liquid for refilling in this liquid container

The present invention relates to a liquid container used as a container for storing cosmetics such as shampoo, rinse and body soap, and a method for refilling a refilling liquid in the liquid container. Background art

In recent years, cosmetics such as shampoos, rinses, and body soaps have been sold in pump-type liquid containers as shown in FIG. 7, for example. The liquid container has a configuration in which a pump means 2 capable of discharging a fixed amount of the liquid in the container 1 ′ is detachably attached to an opening of the bottle-shaped container 1 ′. In order to save resources, the liquid container is usually not disposable, but is washed by washing the inside of the bottle-shaped container 1 ′ as necessary, drying it, and then filling it with a refill liquid. 0 is used.

The refill liquid used at this time is usually sold in a sealed state in a heat-sealed bag made of aluminum sheet or vinyl sheet to reduce costs and reduce the amount of waste. Have been. However, it is not easy to pour the liquid in such a flexible bag from the mouth of the liquid container. Various measures have been taken, such as pouring and deforming the spout itself to make it easier to pour.

However, since the opening of the bottle-shaped container 1 ′ opened by removing the pump means 2 from the bottle-shaped container 1 ′ is usually narrow, How to pour the liquid when refilling the container and the spout of the bag;

However, it was difficult to pour well, and the problem of spilling liquid was inevitable. In addition, since the spout is smaller than the size of the bag, there is a problem that refilling takes a long time. Furthermore, since the bottle diameter of the bottle-shaped container 1 'was small, it became unstable when the container was emptied, and there was a risk of falling when refilling. In addition, since the mouth of the bottle-shaped container 1 'is narrow, it is difficult to wash and dry the inside of the bottle-shaped container 1' as needed before refilling.

Further, the bottle-shaped container 1 ′ and the pump means 2 are firmly screwed together so that the liquid inside does not leak, but the base cap portion 21 into which the pump means 2 is screwed with the bottle-shaped container 1 ′ is formed. However, since the inner diameter is set to be small according to the mouth of the bottle-shaped container 1 ′, there is a problem that it is difficult to remove and open the pump means 2 from the bottle-shaped container 1 ′. Furthermore, the bottle-shaped container 1 ′ is usually formed by extrusion blow molding. However, when the body is expanded by molding, the thickness tends to be uneven, and particularly the shoulder 1 ′ c and the body bottom 1 ′ are formed. Near d is easy to be formed thin. Therefore, the liquid filled in the bottle-shaped container 1 ′ at high temperature may be deformed or destroyed if decompression occurs when the temperature returns to normal temperature, or if an impact is applied from the outside of the container 1 ′. The problem also occurred.

SUMMARY OF THE INVENTION The present invention has been made in view of such circumstances, and is capable of reliably pouring a refilling liquid in a stable state, is easy to use, and has a uniform thickness and a desired strength. It is an object of the present invention to provide a container and a method for refilling a refilling liquid in the liquid container. Disclosure of the invention

In order to achieve the above object, the liquid container of the present invention has the following configuration, That is, the liquid container of the present invention is a liquid container in which pump means capable of discharging a fixed amount of liquid filled in the container is detachably attached to an opening of the bottle-shaped container. The first gist is that the mouth of the container is formed to have a wide mouth, and the pump means is provided with a large-diameter screw portion which is screwed to the mouth of the wide mouth at a lower portion thereof. is there.

Further, the liquid container of the present invention is a liquid container in which a pump means capable of discharging a predetermined amount of liquid filled in the container is detachably attached to an opening of the bottle-shaped container. The mouth of the container is formed to have a wide mouth, and a large-diameter screw portion to be screwed into the wide-mouth opening is provided at a lower portion, and a small-diameter screw portion to be screwed to the pump means is provided at an upper portion. A second feature is that the pump means is attached to the mouth of the bottle-shaped container via a joint cap.

Further, the liquid container of the present invention is obtained by extrusion blow molding, and a pump means capable of discharging a predetermined amount of liquid filled in the container is detachably attached to a mouth of a bottle-shaped container having a shoulder. Wherein the mouth of the pot-shaped container is formed into a wide mouth having an inner diameter of 30 to 60 mm, and the pump means is screwed into a lower portion thereof at the mouth of the wide mouth. The third aspect is to provide a large-diameter threaded portion to be formed.

Also, the liquid container of the present invention is obtained by extrusion molding, and a pump means capable of discharging a fixed amount of liquid filled in the container is detachably attached to the mouth of a bottle-shaped container having a shoulder. Wherein the mouth of the potter-shaped container is formed to have a wide mouth with an inner diameter of 30 to 60 mm, and a large-diameter screw portion to be screwed into the mouth of the wide mouth is provided. A fourth aspect is that the pump means is attached to the mouth of the pot-like container via a joint cap provided with a small-diameter screw portion provided on the lower part and screwed into the pump means on the upper part. Things. The method for refilling the refilling liquid in the liquid container according to the present invention includes the steps of: removing the pump means screwed into the wide mouth of the bottle-shaped container according to the first or third aspect; It is characterized in that the spout of the bag containing the liquid is inserted into the wide mouth of the bottle, and the refilling liquid is poured into the pottle container.

After removing the joint cap screwed into the wide mouth of the bottle-shaped container according to the second or fourth aspect, the spout of the bag containing the refilling liquid is placed on the bottle-shaped container. It is characterized in that it is inserted into the wide mouth and the refilling liquid is poured into a pot-shaped container. BRIEF DESCRIPTION OF THE FIGURES

FIG. 1 is a perspective view showing an embodiment of the liquid container of the present invention, FIG. 2 is a configuration diagram showing an exploded state of the liquid container, and FIG. 3 is a partially enlarged cross-sectional view of the liquid container. FIG. FIG. 4 is an explanatory view showing a state in which the liquid container (bottle-shaped container) is filled with the liquid for mouth P replacement. FIG. 5 is a configuration diagram showing a state where a liquid container of another embodiment of the present invention is disassembled, and FIG. 6 is a configuration diagram showing a state where a liquid container of still another embodiment of the present invention is disassembled. . FIG. 7 is a perspective view showing a conventional liquid container. BEST MODE FOR CARRYING OUT THE INVENTION

Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 shows an embodiment of the liquid container according to the present invention. In the figure, 1 is a bottle-like container, 2 is a pump means, 3 is a joint cap, and this liquid container is configured by detachably attaching these members. Then, this liquid container is in a state where each member is removed. As shown in FIG. 2, the mouth 1a of the potter-like container 1 is formed in a wide mouth. , Polyethylene etc. It is made of synthetic resin, formed by extrusion blow molding, has a capacity of 780 ml, and has a wide mouth (inner diameter Φ 48 mm) as described above. The inner diameter of the mouth la is approximately twice as large as the inner diameter of the mouth (usually Φ24ππππι) in bottle-shaped containers that are currently widely used. Then, as shown in FIG. 2, a thread 1a 'is formed on the outer periphery of the mouth 1a.

On the other hand, the pump means 2 is made of a synthetic resin such as polypropylene, and has a function of discharging a fixed amount of the liquid filled in the bottle-like container 1 similarly to a conventionally known pump means. A thread is formed on the inner circumference 2 b (see FIG. 2) of the base cap portion 21 in the pump means 2.

The joint cap 3 is made of a synthetic resin such as polypropylene. As shown in FIG. 2, a large-diameter screw portion 3a screwed to the wide mouth 1a of the bottle-shaped container 1 is provided at the lower portion. A small-diameter screw portion 3b is formed on the upper portion of the pump means 2 and is screwed to the inner periphery 2b of the basic-skap portion 21 of the pump means 2. The large-diameter threaded portion 3 a is formed of a thread formed on the inner periphery of the large-diameter lower stage of the joint cap 3. Further, the small diameter screw portion 3 b is formed by a screw thread 3 b ′ formed on the outer periphery of the small diameter upper stage of the joint cap 3.

As described above, by forming the small-diameter upper step so that the outer peripheral wall of the cylindrical small-diameter upper step rising vertically from the top surface of the large-diameter lower step of the joint cap 3 becomes the thread 3 b ′ of the screw portion 3 b. However, the overall height of the joint cap 3 can be reduced. Therefore, when the pump means 2 is pushed, the bottle-shaped container 1 does not rattle, and the pushing action of the pump means 2 can be performed in a stable state.

5 is arranged between the bottle-shaped container 1 and the joint cap 3. This is a donut-shaped packing made of foamed polyethylene with double-sided polypropylene and interposed between the upper edge of the mouth 1a of the bottle 1 and the inner surface of the joint cap 3, as shown in Fig. 3. As a result, the gap between the two parties is eliminated, and airtightness is maintained. In addition, an inner ring 3c for positioning and fixing the packing 5 in a fixed position is suspended from the top surface of the inner surface of the joint cap 3.

The liquid container thus configured can be assembled as follows. That is, the pump means 2, the joint cap 3, the packing 5, and the bottle-like container 1 are arranged according to the broken line shown in FIG. 2, and the inner circumference 2b of the base cap portion 21 of the pump means 2 and the joint The cap 3 is screwed with the small-diameter upper screw portion 3b. Then, the large-diameter lower screw portion 3 a of the joint cap 3 and the mouth 1 a of the bottle-shaped container 1 are screwed together with the packing 5 interposed therebetween, whereby the liquid container shown in FIG. Can be assembled.

When refilling the refilling liquid in this liquid container, as shown in FIG. 4, the joint cap 3 screwed into the wide mouth 1a of the pot-like container 1 and the pump means 2 are connected. Remove and insert the spout 4a of the bag 4 containing the refilling liquid into the wide mouth 1a of the bottle 1 and pour the refilling liquid into the bottle 1. At this time, in this liquid container, since the mouth 1a of the bottle-shaped container 1 is a wide mouth, the pouring opening 4a of the bag 4 containing the refilling liquid is bent or bent so as to be easily poured. As shown in FIG. 4, the spout 4a of the bag 4 can be inserted deeply into the mouth 1a of the pot-shaped container 1 as it is, as shown in FIG. Therefore, it is possible to reliably refill the bottle-shaped container 1 without spilling the refilling liquid. In addition, since the size of the spout 4a of the bag 4 can be made as large as possible in the portion that enters the mouth 1a of the bottle-like container 1, The liquid can be poured at once, and the refill time can be reduced. Further, as shown in FIG. 4, by deeply inserting the spout 4a of the bag body 4, the puddle-shaped container 1 can stand alone in a stable state, and can reliably perform refilling work. . In addition, since the mouth 1a of the bottle-shaped container 1 has a wide mouth, washing and drying operations in the bottle-shaped container 1 that are performed as needed at the time of refilling become easy and efficient.

Furthermore, when forming the mouth 1a of the bottle-shaped container 1 into a wide mouth, the shoulder 1a of the bottle-shaped container 1 does not need to be formed by suddenly shrinking the mouth 1a as in the related art. There is no problem of thinning near 1c and the bottom 1d of the trunk (see Fig. 1), and there is no uneven thickness.

In other words, among the methods for molding bottle-shaped containers, extrusion molding is a method in which a parison obtained by melting and extruding a molding resin is expanded by air pressure into a shape along the wall surface of a mold. It has a problem that the thickness is difficult to be uniform.

In particular, when the bottle-shaped container has a considerably larger shoulder diameter than the mouth diameter and an overhanging shoulder, the thickness of each part of the pottle-shaped container and the thickness of each bottle-shaped container Is likely to fluctuate, and the thickness of the shoulder 1c and the torso bottom 1d is likely to be reduced. This problem of wall thickness variation is likely to occur in large-capacity (500-1000 ml) pottle-shaped containers used as refill containers. The impact strength was reduced and the container was deformed when the inside of the container was depressurized or pressurized. In particular, when the pump means is installed, the pressurization when pushing the pump means causes the problem of buckling of the container, and the pressure inside the container is reduced due to the decrease in the volume when the refilling liquid is discharged. As a result, the problem of container deformation occurred.

However, in the bottle-shaped container 1 described above, the mouth la is wide-mouthed. Therefore, even in extrusion blow molding, it is not necessary to extremely increase the blow ratio, and the problem of wall thickness fluctuation can be solved. Further, since the distance between the mouth 1a and the shoulder 1c of the bottle-shaped container 1 is short, the buckling strength of the potted container 1 is increased, and the problem of deformation of the container can be solved. Furthermore, since the thickness does not fluctuate much, the appearance of the color of the liquid inside the container is not affected even in a translucent container.

The minimum wall thickness near the shoulder 1 c and the bottom 1 d of the bottle-shaped container 1 is 0 when the potter-shaped container 1 has a capacity of 780 ml and a basis weight of 40 g. 0.70 to 0.85 mm.

In addition, in this bottle-shaped container, the trunk diameter and the bottom area can be increased, so that the refilling operation can be performed while standing in a stable state.

Further, in the liquid container of the above embodiment, the pump means provided with the small-diameter base cap portion 21 by attaching and detaching the joint cap 3 having a large diameter at the lower portion to the mouth 1 a of the bottle-shaped container 1. The opening and closing operation can be performed more easily than opening and closing the container by directly attaching and detaching the container 2 to and from the mouth of the container. Furthermore, when the joint cap 3 is screwed into the opening 1a of the pot-like container 1, the sealed state can be achieved with a low torque, so that the problem of liquid vaporization and leakage caused by insufficient tightening can be reduced. Can be prevented.

Further, as the pump means 2, a conventionally known pump means can be used as it is. In the case where the joint cap 3 is attached to the bottle-like container 1, the upper stage of the joint cap 3 has a small diameter, and can have the same inner diameter as the conventional potter-like container. , The liquid is filled, and the pump means 2 can be attached. Therefore, equipment costs can be kept low. And, as described above, as the pump means 2, the conventional liquid container The pump means used as a constituent member of can be used as it is. Therefore, the pump means 2 is not limited to a mechanism for directly discharging the liquid filled in the bottle-shaped container 1, but may be, for example, a mechanism for discharging the liquid in a mousse shape or a mechanism for discharging the liquid in a mist state. May be provided. Further, the constituent members of the liquid container of the present invention are not limited to synthetic resin, and may be, for example, metal or glass.

When refilling the refilling liquid into the liquid container thus configured, first, as described above, first, the pump means 2 and the joint cap 3 screwed into the wide mouth 1 a of the bottle-shaped container 1. Then, the spout 4a of the bag 4 containing the refilling liquid is inserted into the wide mouth 1a of the bottle 1 (see FIG. 4). At this time, since the mouth 1a of the bottle-shaped container 1 is wide, there is no need to narrow or deform the spout 4a of the bag 4. Then, the refilling liquid stored in the bag 4 is poured into the bottle-like container 1, and the refilling operation is completed.

Also, in this liquid container, without completely removing the pump means 2 and the joint cap 3 from the wide mouth 1a of the bottle-shaped container 1, the tip of the suction pipe of the pump means 2 is connected to the bottle-shaped container 1. The refilling work can be performed while being hooked inside the mouth 1a. In this case, the refilling liquid attached to the suction pipe of the pump means 2 does not drip and stain the hands and surroundings.

In the above-described embodiment, an example has been given in which the pump means 2 is attached to the mouth 1a of the potter-like container 1 via the joint cap 3-the present invention is not limited to this. For example, as shown in FIGS. 5 and 6, the pump means may be formed into a shape that can be directly attached to the mouth 1 a of the bottle-shaped container 1. That is, in the liquid container in Figure 5. In the pump means 2 ′, the base cap portion 2 1 ′ is formed to have a large diameter in conformity with the wide mouth 1 a of the bottle-shaped container 1, and the inner periphery of the base cap portion 2 1 ′ is formed. 2 b ′ is directly attached to the wide mouth 1 a and screwed. Also, in the liquid container of FIG. 6, as in FIG. 5, the base cap portion 2 1 ′ ″ of the pump means 2 ′ ″ has a large diameter according to the wide mouth 1 a of the bottle-shaped container 1. The inner periphery 2 b ′ ″ of the base cap portion 2 1 ′ ″ is directly attached to the wide mouth 1 a and screwed together. However, in this example, the head 22 of the pump means 2 ″ is also enlarged in accordance with the base cap portions 21,.

In refilling the liquid container thus configured with the refilling liquid, first remove the pump means 2 ′ and 2 ′ ′ that are screwed into the wide mouth 1 a of the bottle-shaped container 1, and then The spout 4a of the bag 4 containing the refilling liquid is inserted into the wide mouth 1a of the bottle 1 (similar to the first embodiment shown in FIG. 4). At this time, since the mouth 1a of the bottle-shaped container 1 is wide, there is no need to narrow or deform the spout 4a of the bag body 4. Then, the refilling liquid stored in the bag 4 is poured into the bottle-shaped container 1, and the refilling operation is completed. In these liquid containers, similarly to the liquid container of the first embodiment, the pump means 2 ′ and 2 ′ ′ are not completely removed from the wide mouth 1 a of the bottle-shaped container 1. The refilling work can be performed with the suction pipes of the pump means 2 ′, 2 ′ ′ being hooked inside the mouth 1 a of the bottle-shaped container 1.

In the liquid container of the present invention, the overall shape of the bottle-shaped container 1 is not particularly limited as long as the mouth 1a is wide. And the degree of wide mouth is also the diameter of the body of the bottle-shaped container 1. Although it depends on the situation, it is preferable to set the inner diameter in the range of 30 to 60 mm. That is, if the diameter of the wide mouth is less than 30 mm, the function and effect of the liquid container of the present invention cannot be sufficiently obtained. Conversely, if the diameter exceeds 60 mm, the mouth 1 of the pottle-shaped container 1 cannot be obtained. a, it is difficult to screw the joint cap 3 and the base cap 21, 2, 21,, of the pump means 2 ′, 2 ′ ′, or the design of the bottle-shaped container is restricted by the body diameter, etc. This is because it will be damaged. Therefore, considering the ease of refilling of the refilling liquid, the ease of tightening the joint cap 3 and the base cap parts 2 1 ′ and 2 1 ′ of the pump means 2 ′ and 2 ′ ′, and the design, etc. The inner diameter of 1a is preferably set in the range of 30 to 60 mm, and more preferably in the range of 38 to 55 mm.

The liquid container of the present invention can be used as a container for storing detergents such as detergents and bleaching agents, and foods such as edible oils, in addition to cosmetics such as shampoo, rinse and body soap. Industrial applicability

As described above, the liquid container of the present invention is configured such that the pump means is detachably attached to the mouth of the bottle-shaped container, and the mouth of the bottle-shaped container is set to have a wide mouth. Therefore, it is easy to pour the liquid at the time of refilling, and it is not necessary to bend the vicinity of the spout of the bag containing the refilling liquid to make it thinner or to improve the shape of the spout itself to make it easier to pour. Also, at the time of refilling, the bag containing the refilling liquid can be inserted deeply as it is, so that stable refilling can be performed until the last squeezing. Furthermore, since the spout of the bag containing the liquid for use can be made wide, the liquid can be poured at once at the time of refilling, and the refilling time is reduced. In addition, cleaning of the liquid container becomes easier and drying becomes faster. Furthermore, since the thickness of the bottle-shaped container can be made unbiased without being affected by the design of the bottle-shaped container, the thickness of the bottle, such as a shape having a large body diameter in the long axis direction, is conventionally reduced. It will be possible to reproduce designs even for shapes that were difficult to eliminate bias. Furthermore, the bottom area can be made larger than it is now, and stability can be provided. In addition, since the bottle-shaped container is easily manufactured, the molding cycle can be improved.

In the liquid container according to the present invention, since the opening of the bottle-shaped container is wide, the screwing portion of the pumping means removably screwed there is also large in diameter. It can be easily opened and closed when attaching and detaching.

Also, when the pump means is configured to be detachably screwed into the mouth of the bottle-shaped container via the joint cap, the joint cap having a large diameter is attached to and detached from the mouth of the puddle-shaped container. The container can be opened and closed more easily than opening and closing the container by directly attaching and detaching the pump means.

Further, in the case of the liquid container of the present invention, when the above-described joint cap is interposed, a conventionally known pump means can be used as it is. Therefore, by treating a bottle-shaped container with a joint cap attached in the same way as a conventional bottle-shaped container, the liquid can be filled and the pump means can be mounted on the existing work line. This can keep equipment costs low.

Thus, in the liquid container of the present invention, by performing the method of refilling the refilling liquid of the present invention, it is possible to reliably perform the refilling operation in a stable state without spilling the refilling liquid. Becomes possible.

Claims

The scope of the claims

1. A liquid container in which a pump means capable of discharging a predetermined amount of liquid filled in the container is detachably attached to the mouth of the bottle-shaped container, and the mouth of the bottle-shaped container has a wide mouth. A liquid container, which is formed, and wherein the pump means includes a large-diameter screw portion screwed into the wide mouth portion at a lower portion thereof.

2. A liquid container in which a pump means capable of discharging a predetermined amount of liquid filled in the container is detachably attached to the mouth of the bottle-shaped container, and the mouth of the bottle-shaped container has a wide mouth. The pump means is formed via a joint cap which has a large-diameter screw portion at the lower portion for screwing with the wide-mouth opening and a small-diameter screw portion at the upper portion for screwing with the pump means. Is attached to the mouth of a bottle-shaped container.

3. A liquid container obtained by extrusion blow molding, wherein a pump means capable of discharging a predetermined amount of liquid filled in the container is detachably attached to a mouth of a bottle-shaped container having a shoulder, The mouth portion of the bottle-shaped container is formed into a wide mouth having an inner diameter of 30 to 60 mm, and the pump means has a large-diameter screw portion to be screwed into the wide mouth portion at a lower portion thereof. A liquid container, comprising:

4. A liquid container obtained by extrusion blow molding, wherein a pump means capable of discharging a fixed amount of liquid filled in the container is detachably attached to a mouth of a bottle-shaped container having a shoulder portion, The mouth of the pot-shaped container is formed into a wide mouth having an inner diameter of 30 to 60 mm, and a large-diameter screw portion to be screwed to the mouth of the wide mouth is provided at a lower portion and screwed to the pump means. A liquid container characterized in that the pump means is attached to the mouth of the bottle-shaped container via a joint cap having a small-diameter threaded portion at the upper part thereof.

5. After removing the pump means screwed into the wide mouth of the bottle-shaped container described in claim 1 or 3, remove the spout of the bag containing the refilling liquid. A method for refilling a refilling liquid, comprising inserting the refilling liquid into the pot-shaped container by inserting the refilling liquid into the wide mouth of a bottle-shaped container.

6. After removing the joint cap screwed into the wide mouth of the bottle-shaped container described in claim 2 or 4, remove the spout of the bag containing the refilling liquid. Refilling method for refilling liquid, characterized by inserting the refilling liquid into a bottle-shaped container by inserting it into the wide mouth of a pottle-shaped container <