JPH1081354A - Dispenser container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent deterioration of the liquid content by connecting an inner bag to a content suction port of a dispenser pump provided with no inlet for the outside air, and protecting the inner bag and the outer circumference of the dispenser pump by an outer container provided with a communication port with the outside air to prevent ingress of the outside air into the container. SOLUTION: A dispenser container 11 comprises a dispenser pump 12, an inner bag 14 to be connected to a content suction port 13 of the dispenser pump 12, and an outer container 15 to cover and protect the inner bag 14 and the outer circumference of the dispenser pump 12. A push-button 17 to which a nozzle 16 to eject the liquid content and a stem 19 provided with an ejection passage of the liquid content are connected is provided on the dispenser pump 12. The inner bag 14 is formed of resin film, etc., which is deformed according to reduction of the liquid content, and the dispenser pump 12 and the inner bag 14 are covered and protected by mounting and fixing the cylindrical outer container 15 provided with a communication port with the outside air on an annular flange of an outer frame 24 and a thick-walled part of the inner bag 14.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to shampoos, cosmetics,
The present invention relates to a dispenser container for ejecting insecticides, detergents, and other internal solutions.

[0002]

2. Description of the Related Art Conventionally, shampoos, cosmetics, insecticides, detergents, and other dispenser containers for spouting an inner solution are provided with an inlet for the outside air at a dispenser pump portion so that the contents can be spouted. In response to the decrease, outside air is introduced into the container. However, such a container could not be filled with a content liquid that deteriorates due to contact with the outside air.

In order to solve the above-mentioned drawbacks, as shown in FIG. 7, a dispenser pump (2) having no outside air inlet is mounted on a dispenser container (1) and a movable bottom plate is mounted on the container body (3). There is an arrangement of (4).
The movable bottom plate (4) is in airtight contact with the inner periphery of the container body (3), and is slidable on the inner periphery of the container body (3) toward the dispenser pump (2).

[0004] Dispenser container formed as described above.
In (1), when the push button (5) of the dispenser pump (2) is pressed, the content liquid previously introduced into the dispenser pump (2) is pressurized by the piston and the nozzle (6)
Injected from the part. Next, when the push on the push button (5) is released, the piston of the dispenser pump (2) is lifted and restored, so that the pressure inside the dispenser pump (2) is reduced, and the contents flow into the dispenser pump (2). .
With the inflow of the contents into the dispenser pump (2), the liquid content in the container body (3) decreases, and the inside of the container body (3) becomes a negative pressure state. The one provided with an outside air inlet takes in outside air into the container body (3) to balance the pressure inside and outside, while the one provided with the movable bottom plate (4) introduces outside air into the dispenser pump (2). Since the port is not provided, the movable bottom plate (4) slides in the direction of the dispenser pump (2) while the movable bottom plate (4) contacts the inner periphery of the container body (3) as shown by the two-dot chain line in FIG. I do. Then, the internal pressure of the container body (3) becomes equilibrium, and even if the content liquid decreases, the content liquid is always supplied to the dispenser pump (2).

[0005]

However, when the movable bottom plate (4) slides on the inner periphery of the container body (3), the container body
If the contact between (3) and the movable bottom plate (4) is not strong,
The airtightness is poor, and outside air enters from the contact portion, and the internal solution leaks to the outside. In addition, in order to improve airtightness, it requires advanced technology,
The dispenser container (1) was expensive. In addition, this strong contact causes the container body (3) and the movable bottom plate
Since the friction with (4) becomes excessive, the movable bottom plate (4) becomes difficult to move smoothly, and has a drawback that the ejection of the content liquid cannot be performed smoothly.

In order to maintain the shape and airtightness as described above, the container main body (3) is made to have excellent pressure resistance which is not deformable, and the pressure is uniformly applied to the container main body (3) and the movable bottom plate (4). In order to make the movable bottom plate (4) slidable smoothly by dispersing in the container body, it is necessary to form the container body (3) in a cylindrical shape without unevenness, which makes the container body (3) expensive. Together with the design constraints.

[0007] In order to solve the above-mentioned problems, the present invention provides:
By making the container filled with the contents liquid an inner bag that can be deformed as the contents are reduced, it is possible to prevent the outside air from entering the inside of the container and prevent the contents liquid from being deteriorated. Further, by filling the inner bag with the content liquid to reduce the burden on the container, the dispenser container can be freely formed without being restricted by the material and the design.

[0008]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a dispenser pump having no outside air inlet, and a content suction port connected to the content suction port of the dispenser pump. And an outer container which is deformable as the contents are reduced and which covers the outer periphery of the inner bag and the dispenser pump, and which is provided with a communication port for outside air.

The inner bag may be pleated.

The inner bag is made of polyethylene terephthalate, low density polyethylene, linear low density polyethylene,
It may be formed by a blow molding method using a material selected from polyacrylonitrile, polypropylene, nylon, and ethylene vinyl alcohol copolymer.

The inner bag is made of polyethylene terephthalate, low density polyethylene, linear low density polyethylene,
A plurality of materials selected from polyacrylonitrile, polypropylene, nylon, and ethylene vinyl alcohol copolymer may be laminated and formed by a blow molding method.

[0012]

Since the present invention is constructed as described above, when the dispenser pump is pressed, the liquid content is ejected from the nozzle of the dispenser pump. Then, when the pressing is released, the inside of the dispenser pump is in a negative pressure state with the restoration of the piston in the dispenser pump, and a suction force of the contents into the inside occurs, but this dispenser pump has an inlet for outside air. As a result, the contents of the inner bag are sucked into the dispenser pump by this suction force, and the next injection can be performed.

As described above, the content liquid in the inner bag flows into the dispenser pump, so that the content liquid in the inner bag decreases, and the inside of the inner bag is depressurized with this decrease. This inner bag has good airtightness and is formed so as to be freely deformable, so that the inner bag shrinks due to the reduced pressure in the inner bag. Therefore, the content liquid always comes into contact with the suction port of the dispenser pump, and the content liquid is supplied, so that the content liquid can be spouted smoothly.

Further, since the outer container covering the inner bag is provided with a communication port for the outside air, the outside air freely enters the outer container through the communication port in accordance with the contraction of the inner bag, and the internal pressure of the outer container is reduced. There is no change. Therefore, since there is no strong pressure applied to the outer container, there is no need to create the outer container with materials and designs that take into account the pressure resistance as in the past, using paper, soft plastic, glass, etc., or using inexpensive materials. It can be easily formed. Further, the cross-sectional shape can be triangular, quadrangular, or the like, and the dispenser container can be formed with a free design.

If the inner bag is formed in a pleated shape,
With the decrease of the liquid content, the inner bag can shrink uniformly,
The supply of the content liquid to the dispenser pump also becomes smooth.

The inner bag is made of polyethylene terephthalate, low density polyethylene, linear low density polyethylene,
When formed by a blow molding method using a material selected from polyacrylonitrile, polypropylene, nylon, and ethylene vinyl alcohol copolymer, the inner bag can be made durable and hardly deteriorated by the content liquid.

The inner bag is made of polyethylene terephthalate, low density polyethylene, linear low density polyethylene,
If a plurality of materials selected from polyacrylonitrile, polypropylene, nylon, and ethylene vinyl alcohol copolymer are laminated and formed by a blow molding method, the strength of the inner bag will be greater than when formed from a single material as described above. And the safety of the inner bag can be further improved.

[0018]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. (11) is a dispenser container, as shown in FIG. 1, a dispenser pump (12), and the contents of the dispenser pump (12). Inner bag (1) connected to the suction port (13) of the
4) and the inner bag (14) and the dispenser pump (1)
And an outer container (15) for covering and protecting the outer periphery of (2).

The dispenser pump (12) has a push button (1) connected to a nozzle (16) for ejecting a content liquid.
7) is provided. This push button (17) has an ejection path for the content liquid.
The stem (19) provided with (18) is connected. A piston (21) is formed at the lower end of the stem (19), and the piston (21) is connected to the cylinder (23) of the housing (22).
Inserted in. And the piston (21) is a cylinder
The inner periphery of (23) can be slid up and down, and the cylinder (23) and the piston (21) are airtightly contacted. An outer frame (24) is fixed to the outer periphery of the housing (22), and an annular cylinder (25) is fixed to the lower end of the outer frame (24).
And the inner bag (14) is closely fixed to the outer periphery. The upper end of the outer container (15) is engaged and fixed to the annular flange (26) of the outer frame (24).

At the lower end of the housing (22), a suction port (13) for the contents is opened, and a communication path (27) communicating with the inside of the cylinder (23) is connected to the suction port (13). To form an inner cylinder (28). By forming the outer diameter of the inner cylinder (28) smaller than the inner diameter of the cylinder (23), the retaining portion (29) for the content liquid is provided at the interval between the cylinder (23) and the inner cylinder (28). Is formed.

An outer cylinder (31) is arranged at a distance between the inner cylinder (28) and the stem (19).
It is possible to move up and down inside (23). This outer cylinder
The inner diameter of (31) is formed larger than the outer diameter of the inner cylinder (28), and the inner cylinder (2) is added to the outer cylinder (31) as the outer cylinder (31) moves up and down.
8) can be inserted. Then, the outer cylinder (31)
With the (28) inserted, the inner cylinder (2) is inserted around the inner circumference of the outer cylinder (31).
8) are in close contact with each other, but when the stagnation portion (29) is in a negative pressure state, the close contact state is released by a slight deformation to form a contact state through which the content liquid can pass.

Further, the upper end of the inner circumference of the outer cylinder (31) and the inner cylinder (28)
The outer cylinder (31) is pressed and urged toward the stem (19) by interposing a pressing ridge (32) at a distance from the lower end of the inner periphery of the outer cylinder. The press projection (32) is interposed by providing a cylindrical projection (40) at the center of the inner periphery of the outer cylinder (31), and
The pressing bar (32) is inserted into the outer tube (31) so that the pressing bar (32) is fixed to the outer cylinder (31) and does not come off when the outer cylinder (31) moves up and down. Also, the outer cylinder
An on-off valve (33) protrudes from the upper part of (31) to press
By the urging force of (32), the ejection path (18) of the stem (19)
To close the jet passage (18) in close contact with the valve seat (34). In addition, the piston (21) and the outer cylinder (31)
Means that the valve seat (34) and the on-off valve (33) are in close contact with each other, but the inner periphery of the piston (21) and the outer periphery of the outer cylinder (31) other than this portion are not in contact with each other to form a gap portion (35), The space (35) communicates with the staying portion (29).

The outer diameter of the outer cylinder (31) is adjusted so that the content liquid can flow through the outer peripheral surface of the outer cylinder (31).
The diameter is smaller than the inner diameter of 3). And the outer cylinder (3
Projecting a plurality of ribs (36) on the outer periphery of
By contacting the inner peripheral wall of 3), the outer cylinder (31) serves as a deflector when the outer cylinder (31) moves up and down in the cylinder (23).

Dispenser pump formed as described above
The inner bag (14) and the outer container (15) are connected to (12). Inner bag
(14) is formed of a resin film or the like that can be deformed according to a decrease in the content liquid. If the resin film is made of a material selected from, for example, polyethylene terephthalate, low-density polyethylene, linear low-density polyethylene, polyacrylonitrile, polypropylene, nylon, and ethylene-vinyl alcohol copolymer, the inner bag is durable and the content liquid is Can be made less likely to be altered by And
An inner bag (14) is formed from this material by a blow molding method.

The inner bag (14) is formed by laminating a plurality of materials selected from polyethylene terephthalate, low density polyethylene, linear low density polyethylene, polyacrylonitrile, polypropylene, nylon and ethylene vinyl alcohol copolymer. When formed by the blow molding method, the inner bag is formed as compared with the case of forming a single material as described above.
The strength of (14) is further increased, and the safety of the inner bag (14) can be further improved.

As shown in FIG. 2, the inner bag (14) is pleated so that the inner bag (14) can be uniformly deformed as the inner volume of the inner bag (14) decreases. ing. The mouth of the inner bag (14) is formed in the thick mouth (37), and the flange (38) is provided. A gasket (39) is interposed between the upper end surface of the flange (38) and the annular flange (26) of the outer frame (24). Thus, by interposing the gasket (39), the inner bag (14) and the outer frame
The airtightness is maintained by preventing outside air from entering into the inner bag (14) or leakage of the contents from the contact portion with the (24).

Then, the cylindrical outer container (15) is attached and fixed to the annular flange (26) of the outer frame (24) and the thick mouth portion (37) of the inner bag (14), so that the dispenser pump (12) is mounted. ) And inner bag
(14) to protect it. And the outer container (1
In order to mount 5), the outer container (15) is protruded inward to provide an annular projection (41), and the upper surface of the annular projection (41) and the inner bag are attached.
An O-ring (42) is fixed to the engagement portion with (14), and an annular flange is formed.
(26) The engagement between the inner bag (14) and the outer container (15) is strengthened, and the airtightness of the inner bag (14) is further improved.

When the outer container (15) is formed, the inner bag (14) having the maximum volume filled with the content liquid is formed in a size that can be completely covered. Also, at the lower end of the outer container (15),
A bottom cover (44) having a plurality of open air communication ports (43) is arranged, and the outer periphery of the bottom cover (44) and the outer periphery of the lower end of the outer container (15) are integrally wound and fastened to fix both. ing. here,
The bottom cover (44) is not necessarily provided, and may be left open. However, if the bottom cover (44) is provided, an obstacle enters through the opening and damages the inner bag (14), preventing accidents such as leakage of contents and intrusion of outside air. )
Safety is guaranteed. In addition, the outer container (15)
If it can cover and protect (14), its shape,
The material is not limited, and the degree of freedom in design is great.

The dispenser container formed as described above
In the shipping state of (11), inside the housing (22),
Content liquid is not filled. Then, when the push button (17) is pressed several times, the housing (22) is filled with the content liquid,
The content liquid is ejected from the nozzle (16).
This operation is as follows.

First, assuming that the content liquid is retained in the housing (22), the process of ejecting the content liquid from the dispenser container (11) will be described with reference to the drawings.
In a stationary state before the push button (17) of the dispenser pump (2) is pressed, as shown in FIG. 3, the outer cylinder (34) of the stem (19) is applied to the valve seat (34) of the stem (19) by the urging force of the pressing bar (32). 31)
The on-off valve (33) is in close contact with the valve and closes the content liquid ejection path (18). When the push button (17) is pressed by hand, FIG.
As shown in the figure, the stem (19) connected to the push button (17) and the outer cylinder (31) closely contacting the stem (19) integrally slide in the cylinder (23) toward the inner cylinder (28). , This inner cylinder (28)
Is closely inserted into the outer cylinder (31), and the communication between the inside of the housing (22) and the inner bag (14) is cut off. And the stem
Since the piston (21) of (19) is in airtight contact with the inner periphery of the cylinder (23), the inside of the housing (22) is pressurized by the sliding of the piston (21).

When the pressure inside the housing (22) becomes greater than the urging force of the urging member (32), the pressure receiving area of the piston (21) is larger than the pressure receiving area of the outer cylinder (31). As shown in FIG. 5, only the outer cylinder (31) has the inner cylinder (2).
8) Move in the direction. Due to this movement, the on-off valve (33) is separated from the valve seat (34), and the ejection passage (18) of the stem (19) is opened.
After passing through 9), it is ejected at a stretch from the nozzle (16).

The ejection of the liquid content causes the housing (2)
2) When the internal pressure decreases, the outer cylinder (31) is pushed up to the stem (19) side by the urging force of the urging rib (32), and as shown in FIG. 34) again. In this state, when the pressing of the push button (17) is released, FIG.
As shown in FIG.
(19) and the outer cylinder (31) ascend integrally in the cylinder (23) and return to the position before pressing. Since the piston (21) of the stem (19) is in airtight contact with the cylinder (23) and the dispenser pump (12) is not provided with an outside air inlet, the inside of the housing (22) is No outside air enters.

By the restoration as described above, the housing (22)
Is in a negative pressure state. By this negative pressure, inner bag (14)
Is sucked from the suction port (13) of the housing (22), passes through the communication passage (27) of the inner cylinder (28), and
(22) The content liquid flows into the inside. Due to the inflow of the content liquid, the inner capacity of the inner bag (14) decreases, and the inner bag (14) contracts with this decrease. Since the inner bag (14) is pleated, the shrinkage becomes uniform, as shown by the two-dot chain line in FIG. 2, and the inner bag (14) adheres tightly between the content liquid and the suction port (13). As a result, the content liquid does not flow from the close contact portion, and the content liquid does not remain in the inner bag (14). Since the content liquid is always supplied in contact with the suction port (13) of the housing (22), there is no waste.

The outer container (15) has a communication port (4) for the outside air.
3) is opened, and the outside air freely enters the outer container (15). Therefore, even if the inner bag (14) shrinks due to the decrease of the liquid content, the internal pressure of the outer container (15) becomes negative. Without outer container
No strong pressure is applied to (15). Therefore,
The outer container (15) does not need to be made of a pressure-resistant material or shape as in the past, but can be made of a material such as paper or resin at low cost, so that use of the outer container (15) is not hindered, and costs and production costs are reduced. Time and labor can be reduced. Further, if the inner bag (14) can be covered and protected, the outer container (15) can be formed in a triangular, quadrangular or other free design, which is preferable in design.

Further, since it is not necessary to limit the outer container (15) to a metal material or the like, the outer container (15) can be easily attached to and detached from the dispenser pump (12). It is also convenient for use.

If the outside air is not introduced, the dispenser pump (1) having a mechanism other than the above-described embodiment is used.
2) may be used to form the dispenser container (11). Also in this case, the inner bag (14) contracts in response to the decrease of the content liquid, and always supplies the internal solution to the dispenser pump (12), and the content liquid is reliably shut off from the outside air. Also, the outer container (15) can be formed of any material and design as described above.

[0037]

As described above, the present invention is constructed as described above, so that it is possible to prevent the outside air from entering into the inner bag filled with the contents, and to prevent deterioration of the liquid for internal use. In addition, since the load caused by the ejection of the content liquid does not apply to the outer container, the outer container can be formed with any material and design, and it is possible to obtain a dispenser container that is excellent in design and rich in variation. Become.

[Brief description of the drawings]

FIG. 1 is a sectional view showing one embodiment of the present invention.

FIG. 2 is a sectional view taken along line AA of FIG. 1;

FIG. 3 is a partially enlarged sectional view of the dispenser container in a stationary state.

FIG. 4 is a partially enlarged sectional view of the dispenser container in a state where a push button is pressed.

FIG. 5 is a partially enlarged cross-sectional view of the dispenser container at the moment when the content is ejected.

FIG. 6 is an enlarged sectional view of an outer cylinder and an inner cylinder of FIG. 3;

FIG. 7 is a cross-sectional view of a conventional example in which a movable bottom plate is provided on the inner periphery of a container body.

[Explanation of symbols]

 12 Dispenser pump 13 Suction port 14 Inner bag 15 Outer container 43 Communication port

Claims (4)

[Claims] 1. A dispenser pump having no outside air introduction port, and an inner bag connected to a content suction port of the dispenser pump for airtightly filling the contents and deforming as the contents decrease. A dispenser container comprising an inner bag and an outer container which covers and protects the outer periphery of the dispenser pump and has a communication port for outside air. 2. The dispenser container according to claim 1, wherein the inner bag has a pleated shape. 3. The inner bag is made of polyethylene terephthalate,
3. The dispenser according to claim 1, wherein the dispenser is formed by a blow molding method using a material selected from low-density polyethylene, linear low-density polyethylene, polyacrylonitrile, polypropylene, nylon, and ethylene vinyl alcohol copolymer. container. 4. The inner bag is made of polyethylene terephthalate,
2. The method according to claim 1, wherein a plurality of materials selected from low-density polyethylene, linear low-density polyethylene, polyacrylonitrile, polypropylene, nylon, and ethylene vinyl alcohol copolymer are laminated and formed by a blow molding method. 2 dispenser container.