JPH1149255A - Cartridge type extrusion container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an inexpensive cartridge type container having a simple automatic opening and closing mechanism. SOLUTION: In a cartridge type extrusion container consisting of an outer container 1 consisting of a lid member 2 and a closed-end cylindrical container main body 3 having a wide mouth part 4 to which the lid member 2 is fitted and the inner container 10 having the bag member 12 provided in the undersurface of a press plate 11 and housed in the container main body 3 so as to be capable of being inserted and sedimented therein, the through-hole 15 piercing the press plate 11 up and down is provided and a flexible film 16 is superposed on the upper surface of the press plate 11 so as to cover the through-hole 15 to be partially bonded thereto and the unbonded part of the film 16 is set to a duct having the discharge port 17 communicating with the through-hole 15 to provide an automatic opening and closing mechanism.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for storing semi-fluid contents, such as creams and ointments, for extruding the contents by pressing the upper surface of the container and for sucking outside air into the container. The present invention relates to an extrusion container provided with an automatic opening and closing device that is not performed.

[0002]

2. Description of the Related Art Conventionally, this kind of container has been
An extrusion container disclosed in JP-A-8-72240 is known.

[0003] In this extrusion container, a push lid having a pouring hole is set in a wide-mouthed container filled with contents so as to be able to settle, and when the push lid is pressed, the pressed content is pressed. The injection hole is opened by the pressure of the object,
A self-closing valve that closes when pressing is stopped is interposed.
Then, by pushing down the push lid, the contents are taken out from the pouring hole, and when the pressing is stopped, the push lid stops at the settled position without air flowing into the container, and the contents in the container are deteriorated by air. Not to be.

[0004]

However, in the above-mentioned conventional extrusion container, the self-closing valve has a large number of parts, the assembly thereof is complicated, and the push-down lid that slides down is slid in the container in a liquid-tight manner. Since high molding accuracy is required, the productivity is low and the cost is high. In addition, since the container is a disposable container in which the entire container is discarded after the contents have been used up, it is uneconomical, and does not meet the demands of an era in which resource conservation and the environment are concerned.

The present invention has been made in view of the above-mentioned problems, and has an inexpensive cartridge type extrusion container having an automatic opening and closing mechanism that can be easily assembled, saving resources and meeting the demands of the environment-related era. Is to provide.

[0006]

According to the present invention, there is provided an outer container comprising a lid, a bottomed cylindrical container body having a wide mouth to which the lid fits, and a bag on a lower surface of the pressing plate. A cartridge-type extrusion container comprising an inner container to which a body is attached and which is separably and sedimentably accommodated in the container main body,
A through hole penetrating vertically through the pressing plate is formed, and a flexible film covering the through hole is overlapped on the upper surface of the pressing plate and partially adhered, and a non-adhered portion of the film is attached to the through hole. It is characterized in that an automatic opening and closing mechanism is provided as a duct having a discharge port communicating therewith.

Further, by providing an inner peripheral groove at the bottom of the container body, the contents can be completely discharged.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below in detail with reference to the accompanying drawings.

According to the present invention, as shown in FIG.
An outer container 1 composed of a bottomed cylindrical container body 3 having a wide-mouthed mouth 4 into which the lid 2 is fitted, and a bag body 12 attached to the lower surface of a pressing plate 11 and fitted in the container body 3 And an inner container 10 which is detachably and sedimentably stored.

The lid 2 and the container body 3 of the outer container 1 are made of synthetic resin, glass, wood, or the like, and an inner peripheral groove 5 is provided around the bottom edge of the container body 3.

The engagement between the lid 2 and the container body 3 is not limited to the one shown in the figure, but may be a screw fitting (figure finger omitted).

FIGS. 2 to 4 show an inner container 10 which is a replaceable cartridge for the container main body 3. The inner container 10 has a shallow concave upper surface and a peripheral wall 13 suspended from the periphery. 11 and a bag 12 attached to the inner peripheral surface of the peripheral wall 13 by an insert molding method to form a hollow portion for storing the contents N.

As shown in FIG. 5, the inner container 10 may have a configuration in which a peripheral wall 13 is suspended from the lower surface of the pressing plate 11, and the bag body 12 is thermally welded to the outer peripheral surface of the peripheral wall 13 by a hot plate. .

The bag 12 is made of polyethylene, polypropylene, vinyl chloride, polyamide, elastomer, etc.
It is formed of a single layer using a film made of a material adapted to the physical properties of the contents, or a multi-layer film provided with a permeability preventing layer such as aluminum. After filling with N, the lower end opening is heat-sealed and sealed to form a bottom 14.

The pressing plate 11 is provided with a through hole 15 penetrating vertically, and a through hole 15 is formed on the upper surface of the pressing plate 11.
A flexible film 16 is superimposed on the upper surface of the pressing plate 11 in a region indicated by cross-hatching in FIG. 4 by a well-known heat welding device or a thermocompression bonding device using a hot melt agent. Partially bonded.

The unbonded portion of the film 16 including the through hole 15 is a duct 18 having a discharge port 17 communicating with the through hole 15 in airtight contact with the upper surface of the pressing plate 11. Of the automatic opening and closing mechanism.

The inner container 10 filled with the contents N configured as described above is put into the outer container 1 through the opening of the mouth portion 4 and set.

When taking out the contents N, the pressing plate 11 is pressed downward, and the contents N are pressed while the bag body 12 is crushed. Then, the duct 1 composed of the film 16 in close contact
8 is opened by receiving the entry pressure of the content N entering through the through hole 15, and discharges the content N from the discharge port 17.

When the pressing is stopped and the entry pressure of the contents N is reduced, the film 16 of the duct 18 elastically returns to the upper surface of the pressing plate 11 and comes into close contact with the upper surface of the pressing plate 11.
Automatically closes. Therefore, the contents N in the inner container 10
Is stored without drying or deterioration by air.

The inner container 10 is, as shown in FIG.
2 is crushed and settles in the container body 3 by the volume of the content N discharged. When the sedimentation of the inner container 10 progresses due to use, the bending of the bag body 12 is finally caused by the inner circumferential groove 5 of the container body 3.
, And the contents N are exhausted without leaving.

The inner container 10 that has used up the contents N is taken out by turning the container body 3 upside down, and a new inner container 10 (cartridge) filled with the contents N is charged into the outer container 1.
Is reused.

The used inner container 10 is a bag 1
Since the pressure plate 2 is crushed and the size of the pressing plate 10 is reduced, the pressure plate 10 is not bulky, the influence on the environment due to disposal is reduced, and the resources are reduced compared to the conventional container.

FIG. 7 shows another embodiment of the inner container 10, in which a ring 19 is welded to the outer peripheral surface of the lower end opening of the cylindrical bag body 12 by insert molding.
After the contents N are filled from the lower end opening maintained in the open state, the bottom plug 20 is press-fitted inside the lower end opening and hermetically closed.

The inner container 10 of this embodiment has a content N
The filling operation is easy because the lower end opening serving as the filling port of the inner container 10 is kept open in a circular shape by the ring 19, and the inner container 10 is filled.
The lower part is also kept in a drum shape as a whole cylindrical shape,
More contents N can be stored than the inner container 10 of the previous embodiment.

The bottom plate 21 of the bottom plug 20 is raised.
Is smaller than the inner diameter of the peripheral wall 13 of the pressing plate 11. Therefore, when the pressing plate 11 is lowered by use, the bottom plate portion 21 is inserted into the inner side of the peripheral wall 13, so that the contents N are extruded without excess.

In the above-described embodiment, the container has a cylindrical shape in the drawings. However, the present invention is not limited to the shape of the figure finger. It is possible.

[0027]

The present invention is embodied in the form described above and has the following effects.

An inner container for storing contents is formed by attaching a bag to the lower surface of a pressing plate having an automatic opening / closing device using a welded film, and this inner container is removably fitted into the outer container body and can be settled. The automatic opening / closing device with few parts can be easily formed.
Since the structure does not require high molding accuracy, it is excellent in productivity and can be provided at low cost.

Further, the used inner container to be discarded is small and reduced in size and is not bulky, and is adapted to environmental problems. In addition, by mounting a new inner container filled with the contents as a cartridge, the outer container is removed. Because it can be used multiple times, it is a container that is also adapted to the problem of resource saving.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a cartridge-type extrusion container of the present invention.

FIG. 2 is a perspective view of an inner container of the extrusion container shown in FIG.

3 is a cross-sectional view of the inner container shown in FIG.

FIG. 4 is a plan view of the inner container shown in FIG. 2;

FIG. 5 is a sectional view showing an inner container according to another embodiment.

FIG. 6 is a sectional view showing an operation state of the extrusion container shown in FIG. 1;

FIG. 7 is a sectional view showing an inner container according to another embodiment.

[Explanation of symbols]

1 outer container, 2 lid, 3 container body, 4 mouths, 10
Inner container, 11 pressing plate, 12 bag, 15 through hole, 1
6 film, 17 outlet, 18 duct,

Claims (2)

[Claims] 1. An outer container comprising a lid, a bottomed cylindrical container body having a wide mouth to which the lid fits, and a bag body attached to a lower surface of a pressing plate, and the inside of the container body is A cartridge-type extrusion container comprising an inner container removably and sedimentably accommodated in the container, wherein a through-hole vertically penetrating through the pressing plate is provided, and a flexible A cartridge type extrusion container provided with an automatic opening / closing mechanism in which a film is overlapped on the upper surface of the pressing plate and partially adhered, and a non-adhered portion of the film is a duct having a discharge port communicating with the through hole. 2. The cartridge type extrusion container according to claim 1, wherein an inner peripheral groove is provided in a bottom portion of the container body.