JP2000296888A - Double container with discharging port - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a double container having a discharging port in which the content in an inner container can be easily discharged and at least an outer container can be utilized again by a simple configuration. SOLUTION: The outer circumferential surface of a neck segment 12 of an outer container 11 formed into a cylindrical shape having a bottam section is threadably formed with a male thread 13 and the inner circumferential surface at a lower part of a lid member 14 is threadably formed with a female thread 15, respectively. The male thread 13 is engaged with the male thread 13 to fix the outer container 11 to the lid 14. The outer circumferential surface of a neck segment 20 of an inner container 19 arranged inside the outer container is threadably formed with a male thread 21 and the inner circumferential surface of a fixing cylinder 16 of the lid 14 is threadably formed with a female thread 17, respectively. The male thread 21 is threadably engaged with the female thread 17 to fix the inner container 19 to the lid 14. The outer container 11 and the inner container 19 are spaced apart to form a space 22. A wall thickness of the outer container 11 is formed to have a range from 0.6 to 1.5 mn and a wall thickness of the inner container 19 is formed to have a range from 0.1 to 0.5 mm.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a double container with a discharge port used as a double container with a comb for discharging a hair dye or the like to hair.

[0002]

2. Description of the Related Art An agent application tool disclosed in Japanese Patent Application Laid-Open No. H10-165222 has been known as this type of double container with a discharge port.

In this conventional configuration, the inner container and the outer container are each formed of a flexible synthetic resin, and are integrally formed so as to open commonly. Further, a lid made of a hard synthetic resin is provided so as to close the shared opening, and the lid is provided with a discharge port for discharging the contents from the inner container to the outside.

[0004] When the outer container is pressed, the inner container closely contacting the inner peripheral surface of the outer container is pressed. As a result, the inner container is contracted, and the contents are discharged to the outside through the discharge port.

[0005]

However, in the conventional double container with a discharge port, the inner container and the outer container are integrally formed. For this reason, when the contents of the inner container are lost due to its use, a new one filled with the contents must be replaced together with the outer container, and the outer container or the outer container and the inner container cannot be reused. There was a problem.

The present invention has been made by paying attention to the problems existing in the prior art as described above. An object of the present invention is to provide a double container with a discharge port that can easily discharge the contents of an inner container and can reuse at least an outer container.

[0007]

Means for Solving the Problems To achieve the above object, a double container with a discharge port according to the first aspect of the present invention comprises:
An outer container having an opening formed of a flexible synthetic resin, an inner container provided inside the outer container so as to be shared with the outer container, and an inner container formed of a flexible material; The outer container includes a lid that can close a common opening of the outer container and the inner container and that is detachably provided to the outer container, and a discharge port that discharges the contents of the inner container to the outside through the lid. And the inner container are configured to be separable.

In the double container with a discharge port according to the second aspect of the invention, in the first aspect of the invention, the outer container and the inner container are configured to be detachably attached to the lid by screwing relation. Things.

The double container with a discharge port according to the third aspect of the present invention is the double container with a discharge port according to the first or second aspect of the invention.
A space is formed between the outer container and the inner container.
According to a fourth aspect of the present invention, in the double container with a discharge port according to any one of the first to third aspects, the outer container has a thickness of 0.6 to 1.5 mm. The inner container is formed to have a thickness of 0.1 to 0.5 mm.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS (First Embodiment) A first embodiment in which the present invention is embodied in a double container with a comb for dyeing hair will be described in detail with reference to the drawings.

As shown in FIG. 1, an outer container 11 having a cylindrical shape with a bottom is formed of a flexible synthetic resin, and an upper portion thereof is narrowed to form a neck portion 12. An external thread 13 is threaded on the outer peripheral surface of the neck 12. As the material of the outer container 11, it is desirable to use a synthetic resin excellent in chemical resistance, moldability and toughness in addition to flexibility.

Specific examples of the material forming the outer container 11 include high-density polyethylene (HDPE), medium-density polyethylene (MDPE), low-density polyethylene (LDPE),
Linear low density polyethylene (LLDPE), ethylene
Saponified vinyl acetate copolymer (EVOH), polyacrylonitonyl, polyethylene terephthalate (PET),
Polypropylene (PP), polyester, polyvinyl chloride and nylon. These materials are preferably formed as a single layer, a laminate of two or more, or a mixture of two or more.

A desirable range of the thickness of the outer container 11 is 0.6-1.5 mm, a more desirable range is 0.9-1.3 mm, and an optimal range is 1.0-1.
2 mm. When the thickness of the outer container 11 is thinner than 0.6 mm, the restoring force of the outer container 11 is weakened, and when the outer container 11 is thicker than 1.5 mm, the outer container 11 cannot be easily bent. Difficult to use.

A female screw 15 is threaded on the inner peripheral surface of a lid 14 formed of a hard synthetic resin and having a substantially cylindrical shape with a lid. The female screw 15 is screwed to the male screw 13 of the outer container 11. The cover 14 is attached to the outer container 11. A mounting cylinder 16 is hung on an upper inner surface of the lid 14, and a female screw 17 is threaded on an inner peripheral surface thereof. An annular locking piece 18 is hung down from the inside of the mounting cylinder 16.

The inner container 19 formed in a bottomed cylindrical shape includes:
A neck portion 20 having a thin upper portion and a thicker wall is formed. A male screw 21 is threaded on the outer peripheral surface of the neck 20, and the male screw 21 is screwed into the female screw 17 of the mounting cylinder 16, and the inner container 19 is mounted on the mounting cylinder 16. That is, the inner container 19 is provided inside the outer container 11, and the openings of both containers 19 and 11 are shared. The common opening is closed by the lid 14. The inner container 19 is provided separately from the outer container 11, and a space 22 is provided between the inner container 19 and the outer container 11.
Are formed.

It is desirable to use the same synthetic resin as the material for forming the outer container 11 as the material for forming the inner container 19. However, when filling the inner container 19 with the first agent and the second agent of the oxidative hair dye or the acidic hair dye, the inner container 19 is formed of a material that does not allow the hair dye to permeate outside the inner container 19. There is a need to. In addition, a hair bleaching agent is also included in the said hair dye.

That is, the first container of the oxidized hair dye is
When the agent is filled, the inner container 19 has a laminated structure of three or more layers in which an aluminum layer is interposed between flexible synthetic resin layers. Specifically, it is desirable to form a layer of HDPE, MDPE, LDPE or LLDPE having excellent alkali resistance inside the aluminum layer. At the time of use, the second agent of the oxidative hair dye filled in a separate container is filled with the inner container 1
9 and mix, then apply to hair.

When the inner container 19 is filled with the second agent of the oxidative hair dye, the inner container 19 is made of a synthetic resin having excellent acid resistance, for example, PE (PE is HDPE, MDPE, LDPE).
Alternatively, it is desirable to form the layer from LDPE / HDPE (indicating that LDPE and HDPE are laminated in this order from the outside), PET / PE or PE / EVOH / PE. At the time of use, after the first agent of the oxidative hair dye filled in a separate container is put in the inner container 19 and mixed,
Apply to hair. Further, when filling the inner container 19 with the acidic hair dye, the inner container 19 is made of a synthetic resin HDPE, MDPE, LDPE, LLDPE or PLD having excellent acid resistance.
It is desirable to form P.

The desirable range of the thickness of the inner container 19 is 0.1.
~ 0.5 mm, but a more desirable range is 0.2 ~
0.4 mm, the optimal range is 0.25 to 0.35 m
m. If the thickness of the inner container 19 is formed to be thinner than 0.1 mm, the reliability of chemical resistance, toughness and formability is lost. If the inner container 19 is formed to be thicker than 0.5 mm, the inner container 19 cannot be sufficiently shrunk, and the hair dye remains inside the inner container 19.

As shown in FIG. 2, an outflow cylinder 23 is provided at the center of the upper surface of the lid 14 so as to protrude upward. At the upper end of the outflow cylinder 23, a tapered fitting recess 24 whose diameter gradually increases toward the upper side is formed, and a cylinder 25 protrudes upward from the inner bottom thereof. An outlet 26 that penetrates the lid 14 is provided at the center of the outflow tube 23.

A fitting recess 27 is formed in the shoulder of the lid 14, and a first check valve 28 is fitted therein. A valve body 29 that opens only downward is provided below the first check valve 28, and a space 2 between the outer container 11 and the inner container 19 from the outside is provided.
Air is introduced into the inside 2, but air is not discharged from the space 22 to the outside.

The connecting tube 30 disposed above the outflow tube 23 is made of a hard synthetic resin. At the lower part of the connecting cylinder 30, a tapered fitting projection 31 whose diameter is gradually reduced toward the lower side is protruded, and an outflow passage 32 is formed therein. The fitting projection 31 is fitted to the fitting recess 2 of the outflow cylinder 23.
4 and the connecting tube 30 is attached to the outflow tube 23. In this state, the lower end of the fitting projection 31 is connected to the outflow cylinder 23.
The outflow path 32 is in communication with the outflow port 26.

At the upper end of the connecting tube 30, there is provided a tapered fitting hole 33 whose diameter is gradually reduced toward the lower side.
An annular groove 34 is formed in the upper part of the inner peripheral surface of the fitting hole 33,
A second check valve 35 is fitted into the inner bottom. A valve body 36 that opens only upward is provided below the second check valve 35. Therefore, air and hair dye are discharged from the inside of the inner container 19 to the outside through the second check valve 35, but are not returned from the outside to the inside.

As shown in FIGS. 1 and 2, the support shaft 37 disposed on the upper part of the connecting cylinder 30 is formed of a hard synthetic resin in a rod shape, and has a substantially triangular planar shape on one side. (In this embodiment, 16) are protruded. A lower part of the support shaft 37 is formed with a tapered fitting projection 40 whose diameter is gradually reduced toward the lower side, and fitted into the fitting hole 33 of the connecting cylinder 30. In addition, the support shaft 37
A guide path 39 is provided in the inside, and a communication path 41 that connects the guide path 39 and the outflow path 32 of the connecting cylinder 30 is formed in the fitting projection 40.

Further, an annular projection 42 is formed on the outer peripheral surface of the fitting projection 40 and is engaged with the annular groove 34 of the connecting cylinder 30 so that the fitting projection 40 does not easily come out of the connecting cylinder 30. ing. A branch path 43 is provided inside each of the comb teeth 38 except for the comb teeth 38 provided at the uppermost part and the lowermost part of the support shaft 37 so as to communicate with the guide path 39. The branch path 43 is formed in a horizontal T-shape at the center of each of the comb teeth 38, and is opened on both side surfaces of the comb teeth 38 to form the discharge port 4.
It is 4.

A comb section is constituted by the support shaft 37, the comb teeth 38 and the like. The hair dye extruded from the second check valve 35 is extruded into the guide path 39, and further discharged from the discharge port 44 through each branch path 43.
Outflow port 26, outflow path 32, communication path 41, taxiway 3
9, a branch 43 and a discharge port 44 constitute a discharge unit.

The operation of the double container with a comb will be described below. Now, when the outer container 11 is pressed, the outer container 11 bends inward, and the space 2 between the outer container 11 and the inner container 19 is formed.
2 is pressed. At this time, since air is not discharged from the space 22 to the outside by the first check valve 28, the space 2
2 is pressurized, and the inner container 19 is
Is pressed and contracted. As a result, the hair dye filled in the inner container 19 is sequentially extruded through the outlet 26, the outflow passage 32, the second check valve 35, the communication passage 41, the guide passage 39, and the branch passage 43, and the discharge port is discharged. It is discharged from 44.

Next, if the pressing of the outer container 11 is stopped, the space 22 is decompressed in order to restore the outer container 11.
As a result, the first check valve 28 is opened, and air is introduced into the space 22 from outside. At this time, the space 22
The peripheral wall of the inner container 19 is pulled outward by the negative pressure, and the inside of the inner container 19 is depressurized. Therefore, the second check valve 35 is closed, and the air and the hair dye once discharged are not returned to the inside of the inner container 19.

As a result, the inner container 19 is maintained in a contracted state, and the space 22 is maintained at a negative pressure. For this reason,
The first check valve 28 is kept open, and air is introduced into the space 22 from the outside to restore the outer container 11. That is, the hair dye does not easily come into contact with air, and the appearance of the outer container 11 is not impaired. By repeating the above-described series of operations, the inner container 19 can be kept contracted each time. Therefore, the inner container 19 can be reduced to a state where there is almost no internal space.

When the contents of the inner container 19 are exhausted, the lid 14 is gripped by one hand and the outer container 11 is turned by the other hand, and the external thread 13 of the outer container 11 is The screw is retreated from the female screw 15. And, as shown in FIG.
With the inner container 19 attached to the lid 14, the outer container 11 is
Is removed from the lid 14.

Subsequently, the lid 14 is gripped by one hand and the inner container 19 is turned by the other hand, and the male screw 21 of the inner container 19 is screwed off from the female screw 17 of the mounting cylinder 16 of the lid 14. The inner container 19 is removed from the lid 14. Thereafter, the user grips the lid 14 with one hand and the new inner container 19 filled with the hair dye with the other hand, presses the tip of the neck 20 of the inner container 19 against the mounting cylinder 16 of the lid 14, and turns it. , Male screw 21 of inner container 19
Into the female screw 17 of the mounting cylinder 16.

In this way, a new inner container 19 can be attached to the lid 14. After that, the lid 14 is gripped with one hand and the outer container 11 is gripped with the other hand, and the tip of the neck 12 of the outer container 11 is pressed against the inner peripheral surface of the lid 14 and turned, and the male screw 13 of the outer container 11 is turned. The female screw 15 of the lid 14 is screwed. That is, the outer container 11 can be attached to the lid 14. When the outer container 11 is pressed as described above, the hair dye is discharged from the discharge port 44.

The effects exerted by the double container with a comb will be described below. -The outer container 11 and the inner container 19 are configured to be separable. For this reason, in the prior art, the integrally formed inner container 19 and the outer container 11 are replaced as an integral unit, but at least the outer container 11 can be reused.

Each of the outer container 11 and the inner container 19 is configured to be detachable from the lid 14 by screwing. For this reason, the inner container 19 can be easily mounted inside the outer container 11.

The outer container 11 and the inner container 19 are provided apart from each other, and a space 22 is formed between the two containers 11 and 19. Therefore, the contents can be easily discharged using the pressure in the space 22.

The thickness of the outer container 11 is from 0.6 to 1.5
mm, and the inner container 19 has a thickness of 0.1
From 0.5 mm. Therefore, the outer container 11
Has an appropriate flexibility and a restoring force, and the inner container 19 has an appropriate toughness and can exhibit the performance of being sufficiently shrunk. Therefore, the contents of the inner container 19 can be easily discharged.

(Second Embodiment) Hereinafter, a second embodiment will be described focusing on differences from the first embodiment. FIG.
As shown in (a) and (b), the mounting cylinder 16 and the lid 14 are formed as separate members. An outflow cylinder 23 is formed on the periphery of the upper surface of the lid 14 from the center. The fitting recess 27 is provided at the center of the upper surface of the lid 14, and the first check valve 28 is fitted therein. Outflow cylinder 2
The diameter of the lower part of the outlet 26 in the inside 3 is enlarged to form an enlarged hole 45.

At the upper end of the enlarged diameter hole 45, there is formed a tapered annular locking concave portion 46 whose diameter is gradually reduced upward. The mounting tube 16 provided at the lower portion of the outflow tube 23 is formed of a hard synthetic resin, and the upper end of the outer peripheral surface thereof is reduced in diameter upward so as to correspond to the annular locking recess 46 of the outflow tube 23. A tapered annular locking projection 47 is formed.

The annular locking projection 47 is engaged with the annular locking recess 46 of the outflow tube 23, so that the mounting tube 16 does not easily come out of the outflow tube 23. Further, the inside of the mounting cylinder 16 is formed as a crank-shaped discharge path 48,
3 is communicated with the outlet 26. One side of an intermediate portion of the mounting cylinder 16 is formed in a stepped shape, and the lower portion has an outer diameter and an inner diameter that are enlarged.

Now, the mounting cylinder 1 is inserted into the enlarged diameter hole 45 of the outflow cylinder 23.
When the upper part of the tube 6 is inserted from below, the annular locking projection 47 is engaged with the annular locking concave portion 46 of the outflow tube 23, and the mounting tube 16 is mounted in the outflow tube 23. At this time, the discharge passage 48 formed in the mounting tube 16 is communicated with the outlet 26 of the outflow tube 23.

Accordingly, in the double container with a comb according to the present embodiment, the mounting cylinder 16 and the lid 14 are formed as separate members, and the mounting cylinder 16 and the lid 14 can have a simple structure and can be easily molded. Can be molded. An annular locking concave portion 46 is formed at the upper end of the enlarged diameter hole 45 of the outflow cylinder 23, and an annular locking convex portion 47 is formed at the upper end of the mounting cylinder 16.
By inserting the upper part of the mounting cylinder 16 into the lower part of the mounting cylinder 16, the mounting cylinder 16 can be mounted in the outflow cylinder 23. For this reason, the mounting cylinder 16 can be easily assembled to the lid 14.

The present invention can be embodied with the following modifications. In the double container with a discharge port of the embodiment, the comb section may be omitted and the discharge port may be formed in a nozzle shape. If formed in this manner, it can be used as a container for a liquid or kneaded (fluid) seasoning, such as mayonnaise, ketchup, and dressing. Further, a cap for closing the discharge port may be provided. With this configuration, the discharge port can be closed when not in use, and the contents can be kept clean. Further, the content may be any liquid or kneaded material, and can be embodied by changing it without departing from the spirit of the present invention.

As shown in FIG. 5, the inner container 19 may be formed in a bottomed cylindrical shape provided with a flange 49 at the upper end.
In this case, the mounting cylinder 16 is formed so as to approach the outer circumference of the upper inner surface of the lid 14 so that a gap between the outer peripheral surface and the inner peripheral surface of the lid 14 becomes the width of the flange 49. Further, the annular locking piece 18 of the lid 14 and the female screw 17 of the mounting cylinder 16 are not formed, and the first check valve 28 is provided on the bottom surface of the outer container 11.

When the contents of the inner container 19 are exhausted, first, the male screw 13 of the outer container 11 is screwed off from the female screw 15 of the lid 14, and the outer container 11 and the inner container 19 are removed from the lid 14. Remove. Then, the user grips the flange 49 of the inner container 19 with one hand, holds the outer container 11 with the other hand, and pulls the inner container 19 out of the outer container 11. Thus, the inner container 19 is removed from the outer container 11.

Thereafter, a new inner container 19 filled with the hair dye is gripped with one hand, and the lower part thereof is inserted from above the outer container 11, and the lower surface of the flange 49 of the inner container 19 is attached to the neck 12 of the outer container 11. The inner container 19 is mounted in the outer container 11 while being supported by the upper end surface of the inner container. Then, with one hand, the lid 14
The outer container 11 is gripped with the other hand, and the flange 49 of the inner container 19 and the neck 1 of the outer container 11 are attached to the inner peripheral surface of the lid 14.
The tip of No. 2 is pressed and turned, and the male screw 13 of the outer container 11 is screwed into the female screw 15 of the lid 14.

As a result, the inner container 19 has its flange 49
Is clamped and fixed between the upper end surface of the neck portion 12 of the outer container 11 and the inner surface of the shoulder portion of the lid 14. Thus, the outer container 11 and the inner container 19 are attached to the lid 14. When the outer container 11 is pressed, the hair dye is discharged from the discharge port 44. Therefore, the annular locking piece 18 of the lid 14, the female screw 17 of the mounting cylinder 16, and the male screw 21 of the inner container 19 can be omitted. Therefore, the lid 14 and the inner container 19 can have a simple structure and can be easily molded.

In the embodiment, the inner container 19 may be separated from the lid 14, and the inner container 19 may be refilled with a hair dye. With this configuration, the inner container 19 can be reused in addition to the outer container 11.

In the double container with a discharge port of the embodiment,
The inner container 19 was filled with a hair dye as a content, and the inner container 19 was filled with a liquid and gel-like hair styling or hair cosmetic such as a liquid hair styling agent, a hair styling gel, a treatment agent and a perm agent. You may. With this configuration, the hairdressing agent or the cosmetic for the hair can be applied to the hair without soiling the hands.

In the double container with a discharge port of the embodiment,
Although the annular locking piece 18 is provided to hang down on the upper inner surface of the lid 14, the annular locking piece 18 may be omitted and a packing may be provided on the upper inner surface of the lid 14. In such a configuration, when the male screw 21 of the inner container 19 is screwed into the female screw 17 of the mounting cylinder 16 of the lid 14, the packing is sandwiched between the upper inner surface of the lid 14 and the upper end of the neck 20. Retainer 1
The hermetic seal between 9 and outer container 11 can be maintained.

Further, the technical ideas that can be grasped from the above embodiment will be described below. (1) The mounting cylinder extends in the lid body, and the inner container is configured to be detachable from the mounting cylinder.
A double container with a discharge port according to any one of the above. With such a configuration, the lid can have a simple structure and can be easily formed.

(2) The double container with a discharge port according to claim 1, wherein the lid is formed integrally with a synthetic resin. In the case of such a configuration, the lid body has a simple structure and can be easily manufactured.

[0052]

As described above in detail, according to the present invention, the following effects can be obtained. According to the double container with a discharge port of the first aspect of the invention, the contents of the inner container can be easily discharged, and at least the outer container can be reused.

According to the double container with a discharge port according to the second aspect of the invention, in addition to the effect of the first aspect, the inner container can be easily mounted inside the outer container. According to the double container with a discharge port of the invention described in claim 3, in addition to the effect of the invention described in claim 1 or 2, in addition to the effect of the space formed between the inner container and the outer container, The contents can be easily discharged using the pressure.

According to the double container with a discharge port of the invention described in claim 4, in addition to the effect of the invention described in any one of claims 1 to 3, the appearance of the outer container is maintained. And the contents filled in the inner container can be discharged without waste.

[Brief description of the drawings]

FIG. 1 is a fragmentary front view showing a double container with a comb according to a first embodiment.

FIG. 2 is a partially enlarged front view of the same main part.

FIG. 3 is a fragmentary front view showing a state where the outer container is removed.

FIG. 4 (a) is a fragmentary front view of a double container with a comb according to a second embodiment, and FIG. 4 (b) is a partially enlarged front view of the double container.

FIG. 5 is a fragmentary front view showing another example of a double container with a comb.

[Explanation of symbols]

11: outer container, 14: lid, 19: inner container, 22: space, 44: discharge port.

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) B65D 77/04 B65D 77/04 F (72) Inventor Akira Wakasugi 1st place 12 Hoyu Co., Ltd. General Research Laboratory F-term (reference) 3B040 AE05 AE08 3E014 PA01 PB03 PC07 PD22 PE09 PE25 3E067 AA04 AB81 BA03C BA12B BB14B BB14C BC07B BC07C EA18 EE56 EE59 FA04 3E084 AA02 CC02A03 GB04 LD13 LG01

Claims (4)

[Claims] 1. An outer container having an opening formed of a flexible synthetic resin, and provided inside the outer container so as to be shared with the outer container, and formed of a flexible material. An inner container, a lid that can close a common opening of the outer container and the inner container and that is detachably provided in the outer container, and a discharge port that discharges the contents of the inner container to the outside through the lid. A double container with a discharge port that is configured so that the outer container and the inner container can be separated. 2. The apparatus according to claim 1, wherein each of the outer container and the inner container is detachably connected to the lid by a screwing relationship.
A double container with a discharge port according to 1. 3. The double container with a discharge port according to claim 1, wherein a space is formed between the outer container and the inner container. 4. The outer container has a thickness of 0.6 to 1.5 m.
m, and the inner container has a thickness of 0.1 to 0.1 mm.
The double container with a discharge port according to any one of claims 1 to 3, wherein the double container is formed to 5 mm.