JP2004307049A - Double container with dispenser - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reduce limitation in design of an upper part of a container and prevent an inner container from rattling in an outer container. <P>SOLUTION: The container has: the bottle-like inner container 1 formed by coupling a filling mouth member 10 having an external thread 13 engraved on the outer peripheral surface with the inner peripheral surface at the upper end of a cylindrical film 2 and coupling a ring 6 with the outer peripheral surface at the lower end of the film 2 and welding a bottom plate 7 with the ring 6 to form a bottom 5; a dispenser 20 for closing the inner container 1 by fixing to the external surface of the upper part of the filling mouth member 10; and the outer container 30 having an internal thread 34 capable of screwing with the external thread 13 engraved on the inner peripheral surface of a neck 33 integrally standing on a shoulder 32 of a barrel 31 for receiving the inner container 1. The inner container 1 and the outer container 30 are structured so that they can be assembled by screwing the external thread 13 with the internal thread 34. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
[Industrial applications]
The present invention provides a flexible inner container filled with a fluid, an outer container for accommodating the inner container, and a dispenser having a dispenser for discharging a fluid content in the inner container while contracting the inner container. For double containers.
[0002]
[Prior art]
DESCRIPTION OF RELATED ART Conventionally, as this kind of double container with a dispenser, what was disclosed by Unexamined-Japanese-Patent No. 5-75163 and Unexamined-Japanese-Patent No. 2001-335087 is known, for example. The above-mentioned conventional container is suitable for preservation and discharge of fluid contents, and it is possible to separate and reassemble each part, so it is used as a refill container for toiletry products such as shampoo, rinse, deodorant, etc. It is highly likely.
[0003]
In the conventional double container with a dispenser, the outer container portion is composed of two parts: a container main body and a lid externally fitted to the container main body. The inner container, which is housed in the outer container, has its neck protruding from the through hole in the center of the lid, and a dispenser is screwed into the neck to clamp the lid between the inner container and the dispenser. Is suspended from the lid.
[0004]
[Problems to be solved by the invention]
Since the above-mentioned conventional double container with a dispenser forms an outer container by fitting the lid to the container body, the outer peripheral wall of the screw portion of the lid vertically suspended from the outer peripheral edge of the shoulder of the lid is the container body. In addition to being widely exposed at the top of the container, a boundary between the lid and the container body is created on the outer surface of the outer container, which imposes design constraints that cannot be avoided.
[0005]
Therefore, the design margin for giving elegance to the upper part of the container is limited, and the shape and smoothness of the outer periphery of the shoulder in the outer container, which is a conspicuous part, and lack of uniformity and sense of unity, miscellaneous goods and It was a double container with a dispenser with a configuration that had many difficulties to adopt as a cosmetic container that required a better appearance than toiletry products.
[0006]
In addition, the inner container assembled in the outer container may loosen the screw fitting with the dispenser due to vibration during transportation or the like, and may rattle in the inner container.
[0007]
SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has as its object to reduce design restrictions on an upper portion of a container and prevent rattling of an inner container in an outer container.
[0008]
[Means for Solving the Problems]
In the present invention, a filling port member having an external thread engraved on an outer peripheral surface is coupled to an inner peripheral surface of an upper end portion of a cylindrical film, and a ring is coupled to an outer peripheral surface of a lower end portion of the cylindrical film, and the ring A bottle-shaped inner container in which a bottom plate is welded to form a bottom, a dispenser that closes the inner container by being fixed to the upper outer surface of the filling port member, and a neck portion that is integrally erected on the shoulder of the body. An outer container for engraving a female screw that can be screwed with the male screw on the inner peripheral surface and containing the inner container, and by screwing the male screw and the female screw into the inner container, It is characterized in that an outer container is assembled.
[0009]
With the above configuration, the male screw of the filling port member of the inner container and the female screw of the neck of the outer container are screwed together, and the inner container is assembled into the outer container in an internally fitted state, and the dispenser is fixed to the inner container. Thereby, the inner container is housed in the outer container without being exposed to the outside, and the neck, the shoulder, and the trunk are integrated under the dispenser so as to have an integrated appearance.
[0010]
Further, a first projection is provided above the male screw of the filling port member of the inner container, and an inward projection is provided at the open end of the neck portion of the outer container so as to engage with the first projection undercut. It is preferable that the container and the outer container are screw-fitted and undercut engaged.
[0011]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, the double container with a dispenser of the present invention will be described with reference to the drawings.
[0012]
FIGS. 1 to 5 show a preferred embodiment of the present invention, in which a filling port member 10 and a ring 6 are connected to upper and lower ends of a cylindrical film 2, and a bottom plate 7 is attached to the ring 6. , A bottle-shaped inner container 1 having a bottom portion 5 formed by welding, a dispenser 20 for closing the inner container 1, and an outer container 30 for accommodating the inner container 1 in an internally fitted state. . Reference numeral 39 denotes a lid that is fitted to the lid member 21 of the dispenser 20.
[0013]
The cylindrical film 2 constituting the body of the inner container 1 is a highly flexible film obtained by rolling a laminate film cut into a rectangle and joining the side ends thereof. A synthetic resin film having a high barrier property is selected for the intermediate layer of the laminated film to be used, and a synthetic resin film having good weldability to the filling port member 10 and the ring 6 of the bottom 5 is selected for the outer layer.
[0014]
As a film material constituting the laminate film, a polyethylene film, a polyester film, and a polypropylene film are preferable, and a barrier film may be enhanced by using a film in which an intermediate layer is subjected to metal evaporation or silica evaporation.
[0015]
In the filling port member 10 of the inner container 1, a male screw 13 is engraved on an outer peripheral surface of a base end portion of a neck portion 12 protruding from a shoulder portion 11, and a neck portion of the outer container 30 is provided above the male screw 13. A first projection 17 for engaging undercut that engages with the second projection 32 is provided, and a second projection 14 for engaging undercut that is engaged with the dispenser is further provided above the first projection 17. A vertical rib 15 for preventing rotation is provided above the projection 14, and a filling port 16 is opened at the top. The outer peripheral edge of the shoulder portion 11 and the inner peripheral surface of the upper end portion of the cylindrical film 2 are combined to form a bottle-shaped upper portion of the inner container 1.
[0016]
The bottom 5 of the inner container 1 is connected to a ring 6 on the outer peripheral surface of the lower end of the cylindrical film 2 to hold the lower end of the film 2 in an open state. 7 is formed by welding the upper surface of the flange 7a of the bottom plate 7 and the lower surface of the ring 6.
[0017]
As a method of integrally connecting the filling port member 10 and the ring 5 to the cylindrical film 2, it is preferable to use a heat welding method or an insert molding method. That is, in the heat welding method, the filling port member 10 and the ring 6 are separately formed, and the outer peripheral edge of the shoulder of the filling port member 10 is welded to the inner peripheral surface of the upper end portion of the cylindrical film 2. The surfaces are welded to the outer periphery of the lower end of the cylindrical film 2 to be integrally joined. In the insert molding method, the cylindrical film 2 is inserted into a mold for simultaneously molding the filling port member 10 and the ring 6, and the filling port member 10 and the ring 6 are formed simultaneously by the injection molding method and the film 2 is integrated. To join.
[0018]
The dispenser 20 has a pump mechanism 23 equipped with a push button 22 inside the lid member 21, and the lid member 21 is fitted over the filling port member 10 of the inner container 1. Thereby, the filling port 16 of the inner container 1 is closed in a liquid-tight manner. An inward projection 24 is formed on the inner surface of the lid-shaped member 21 so as to prevent the second projection 14 of the filling port member 10 from slipping out by engaging with the second projection 14. A vertical rib 25 is provided to prevent rotation by engaging with the rib.
[0019]
The outer container 30 is engaged by undercut engagement of a main body 30a having a neck portion 33 which is integrally erected above a cylindrical body portion 31 via a shoulder portion 32, and a lower end opening 36 of the main body portion 30a. A female screw 34 that can be screwed with the male screw 13 of the inner container 1 is engraved on the inner peripheral surface of the neck 33, and the inner container 1 is provided at the open end of the neck 33. An inward projection 37 that engages with the first projection 17 is provided. The main body 30a and the bottom cover 35 are formed by injection molding using a rigid thermoplastic resin such as SAN, PET, PS, PMMA, ABS, PP, PE, or the like.
[0020]
In order to assemble the present container composed of the above parts, the inner container 1 is usually inserted through the lower end opening 36 of the main body 30a of the outer container 30, and the male screw 13 of the filling port member 10 in the inner container 1 and the main body The screwing of the neck 33 with the female screw 34 at 30a is advanced, and the first projection of the filling port member 10 of the inner container 30 and the inward projection 37 of the neck 33 of the main body 30a are engaged. As a result, the inner container 1 and the main body 30a are integrated without loosening the screws, and the lower end opening 36 of the main body 30a in the outer container 30 is closed with the bottom cover 39, as shown in FIG. A double container N in which the container 1 is accommodated in the outer container 30 in an inner fitting state is formed.
[0021]
Then, after filling the fluid from the filling port 16 of the filling port member 10, the dispenser 20 is put on the filling port member 10 of the inner container 1, and the vertical rib 15 of the filling port member 10 and the vertical rib 25 of the lid-like member 21 are attached. At the same time, the second projection 14 of the filling port member 10 and the inward projection 24 of the lid member 21 are engaged with the jig by undercut engagement so that the lid member 21 cannot rotate with the outer surface of the filling port member 10 mutually. To join. By this operation, the dispenser 20 is fixed to the inner container 1, and the filling port 16 of the inner container 1 is closed.
[0022]
Since the inner container 1 and the dispenser 20 cannot be separated by ordinary means, the filling content is maintained in a hermetically sealed manner so that it can be discharged and sanitary. Further, the inner container 1 is fixed to the outer container 30 by screw fitting in an inner fitting state and the dispenser 20 is attached to the inner container 1 so that the inner container 1 is stored in the outer container 30 without being exposed to the outside. Therefore, the outer container 1 has the external appearance of the double container N as it is below the dispenser 20.
[0023]
Therefore, there is no boundary between the parts above the trunk portion 31 of the double container N, which is conspicuous, and a design with a seamless and unified feeling where the neck portion 30, the shoulder portion 32, and the trunk portion 31 are continuous can be realized. A beautiful appearance suitable as a cosmetic container can be obtained. If necessary, the dispenser 20 may be attached to the inner container by screw fitting (figure fingers omitted).
[0024]
When the container according to the present invention is used as a cartridge type container, as shown in FIG. 5, first, the inner container 1 is filled with a fluid, and the dispenser 20 is undercut-coupled to the inner container 1 so as to be inseparable. , A cartridge K with a dispenser is formed. Further, it is preferable that the outer container 1 for storing the cartridge K has a means for fitting the main body 30a and the bottom lid 39 by screw fitting.
[0025]
The cartridge K can be fitted and inserted through the opening 36 of the main body 30a, and can be easily fixed to the outer container 1 in an inner fitting state by screwing the neck 12 and the neck 33 together. When replacing the cartridge K, the first projection 17 and the inward projection 37 are formed by removing the bottom cover 39 and turning the cartridge K and the main body 30a in a direction in which the screw engagement between the neck 12 and the neck 33 is loosened. The undercut engagement is easily released, and the cartridge K can be easily removed.
[0026]
Since the container of the present embodiment uses the highly flexible cylindrical laminate film 2 for the body of the inner container 1, the negative pressure generated in the inner container 1 when the stored liquid is discharged by the operation of the dispenser 20. Accordingly, the cylindrical film 2 contracts from the plurality of directions toward the axis according to the discharge amount, and the stored liquid can be discharged without waste. In the inner container 1 which has completely discharged the stored liquid, the portion of the cylindrical film 2 shrinks slightly, so that the used cartridge K does not become bulky, and the waste storage space is small.
[0027]
【The invention's effect】
As described above, by attaching the dispenser to the inner container, the inner container is stored in the outer container without being exposed to the outside, and the boundary between the parts does not appear above the body portion which is conspicuous in the outer container. Since it is a double container with a dispenser, it is possible to provide an elegant exterior design with a sense of unity, and it can be suitably used as a cosmetic container requiring an aesthetic appearance.
[0028]
In addition, since the inner container and the outer container are screw-fitted and engaged with the undercut, the screws are prevented from loosening due to vibration during transportation and handling, and the inner container is loosened inside the outer container. There is no such thing as stuck.
[Brief description of the drawings]
FIG. 1 is a partially cutaway front view showing an embodiment of a double container with a dispenser of the present invention.
FIG. 2 is an exploded sectional view of the container of FIG.
FIG. 3 is an exploded front view of the container of FIG. 1;
FIG. 4 is a sectional view for explaining a normal assembling procedure of the container of FIG. 1;
FIG. 5 is a sectional view for explaining an assembling procedure when the container of FIG. 1 is used as a cartridge type container.
[Explanation of symbols]
Reference Signs List 1 inner container, 2 cylindrical film, 5 bottom, 6 ring, 7 bottom plate, 10 filling port member, 13 male screw, 17 first projection, 20 dispenser, 30 outer container, 31 body, 32 shoulder, 33 neck , 34 male thread, 37 inward projection

Claims (2)

A filling port member having an external thread engraved on the outer peripheral surface is coupled to the inner peripheral surface at the upper end of the cylindrical film, and a ring is coupled to the outer peripheral surface at the lower end of the cylindrical film, and a bottom plate is welded to the ring. A bottle-shaped inner container having a bottom portion formed thereon, a dispenser for closing the inner container by being fixed to an upper outer surface of the filling port member, and an inner peripheral surface of a neck portion integrally provided on a shoulder portion of a body portion. An outer container for engraving a female screw engageable with the male screw and accommodating the inner container. The inner container and the outer container are assembled by screwing the male screw and the female screw. A double container with a dispenser, characterized in that: A first projection is provided above the male screw of the filling port member of the inner container, and an inward projection is provided at the open end of the neck portion of the outer container so as to engage with the first projection undercut. The double container with a dispenser according to claim 1.

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