JPH08252510A - Container with trigger type pump dispenser - Google Patents

Abstract

PURPOSE: To provide a container with a trigger type pump dispenser capable of sufficiently exhibiting a discharge function in any postures including a horizontally laid state, inverted posture, etc., with simple constitution. CONSTITUTION: This container with a pump dispenser 3 is mounted with a trigger type pump dispenser 3 in the mouth neck part of a container 2. This container 2 is composed of an outer container 21 and a freely deformable inner container 22 which is mounted in a hermetic state to the trigger type pump dispenser 3 housed in the outer container 21 and is freely deformable. A content liquid is housed in the inner container 22.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pump dispenser used for containers such as household detergents, and more particularly to a trigger type pump dispenser.

[0002]

2. Description of the Related Art Conventional trigger-type pump dispensers that have been put on the market are diversified mainly for household detergents.

FIG. 4 shows a general container with a trigger type pump dispenser.

That is, a trigger type pump dispenser 101 is attached to the mouth and neck of a container 100 having rigidity, and the container 100 is grasped by hand, and a trigger lever 103 attached to a trigger head 102 is pulled by a finger.
The pump mechanism 104 is operated, and the dip tube 105
The content liquid sucked into the pump chamber 106 through is compressed and discharged from the discharge port 107.

The tip of the dip tube 105 is the container 10
It extended to the bottom of 0 and was able to inhale even when the content liquid became low.

[0006]

However, in the case of the above-mentioned prior art, the container 100 is often used in an upright state or a sideways state for bathroom washing, spraying on the ceiling surface and floor surface. Depending on the posture, the tip of the dip tube 105 may come off the content liquid L. For example,
When the container is upside down, as shown in FIG.
Moves from the bottom of the container 100 to the head space side, and the tip of the dip tube 105 is completely removed from the content liquid L. In this way, the dip tube 105 is filled with the content liquid L.
When it comes off, the air in the container 100 is sucked instead of sucking the content liquid, and the discharge function cannot be sufficiently exerted.

[0007] As a measure when using it in a laid state,
First, a method is conceivable in which the discharge nozzle is movable with respect to the container and the discharge port is oriented in the required direction.

However, in this method, since the discharging operation has two actions, that is, the operation of adjusting the direction of the discharging nozzle and the discharging operation, the operation becomes complicated. Further, it is necessary to newly add a mechanism for moving the discharge nozzle, which increases the size accordingly.

As a second method, as shown by the broken line in FIG. 4, the dip tube 105 'is obliquely inserted on the same side as the discharge port 107, and the dip tube 105' does not come off from the content liquid even when it is laid sideways. Thus, a method of increasing the degree of freedom of posture can be considered.

However, in this method, the discharge function does not work in the inverted use.

As a third method, as shown in FIG. 5, the trigger type pump dispenser 101 and the dip tube 1 are used.
During 05, the two first and second check valves 106 and 107
There has been proposed a method of providing the adapter 108 including the.

This adapter 108 is the first in the upright state.
The check valve 106 is opened to allow the inflow of the content liquid from the dip tube 105, and the second check valve 107 is closed to prevent the inflow of air from the head space. At the time of falling, the first check valve 106 is closed to prevent the inflow of air from the tip of the dip tube 105, and the second check valve 107 is opened to allow the inflow of the content liquid moved to the headspace side of the container 100. It was done.

However, in the case of using the adapter 108, the first and second check valves 106 and 107 are effective in the fall, but in the sideways state as shown in FIG. 5B.
The positions of the check balls 106a and 107a, which are the valve bodies, are not fixed, and there is a problem that the discharge function is not stable.

There is also a problem that two check valves 106 and 107 are required and the number of parts increases.

For these reasons, the present situation is that most of the methods other than the second method have not been commercialized.

The present invention has been made in order to solve the above-mentioned problems of the prior art, and its purpose is to make a discharge function sufficiently exerted in any posture such as a sideways state or an inverted posture with a simple structure. It is to provide a container with a trigger-type pump dispenser.

[0017]

In order to achieve the above object, in the present invention, in a container with a pump dispenser in which a trigger type pump dispenser is attached to the mouth and neck of the container, the container is referred to as an outer container. And a deformable inner container which is housed in the outer container and attached to the trigger type pump dispenser in a sealed state, and the content liquid is housed in the inner container.

Further, the suction valve mechanism in the trigger type pump dispenser is provided with an elastic member for pressing and holding the valve body against the valve seat with a predetermined force.

Further, the invention is characterized in that a deformation restricting member for restricting a part of the deformation of the inner container and ensuring a passage for allowing the flow of the content liquid is provided in the inner container.

[0020]

In the present invention, since the content liquid is stored in the deformable inner container, when the content liquid is sucked by the trigger type pump dispenser, the inner volume is reduced by that much and the inner container is reduced. Is deformed and the content liquid is sucked up smoothly without negative pressure inside the inner container.

Since the air layer does not exist inside the inner container even when the container is placed upside down or sideways,
The content liquid can be stably inhaled, and the residual liquid amount in the container can be minimized.

Further, if an elastic member for pressing the valve body of the suction valve mechanism in the trigger type pump dispenser against the valve seat is provided, it is possible to prevent the reverse liquid flow during inverted use.

Further, if a deformation regulating member for partially regulating the deformation of the inner container and ensuring a passage for allowing the flow of the content liquid is provided in the inner container, the content liquid has a high viscosity and the inner container has a high viscosity. Even if the internal fluidity is poor, the deformation restricting member ensures a passage for allowing the content liquid to flow, and the residual liquid can be further reduced.

[0024]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to illustrated embodiments.

In the figure showing a container with a trigger type pump dispenser according to an embodiment of the present invention, reference numeral 1 denotes the entire trigger type pump dispenser, and a container 2 and
It is composed of a trigger type pump dispenser 3 attached to the mouth and neck of the container 2.

The container 2 includes an outer container 21 having rigidity,
Deformable inner container 2 housed in the outer container 21
2 and. The inner container 22 has an opening at a position corresponding to the mouth and neck, and the opening is attached to the trigger type pump dispenser in a hermetically sealed state.

The outer container 21 is composed of a body portion 211, a bottom portion 212 for closing the lower end of the body portion 211, and a mouth / neck portion 214 protruding upward from a shoulder portion 213 at the upper end of the body portion 211. Maintains a constant shape regardless of the amount of content liquid. The center of the bottom portion 212 is deviated to the front (the discharge port side of the trigger type pump dispenser) with respect to the center of the mouth / neck portion 214, and the lower end front side surface 211a of the body portion 211 bulges forward.

The inner container 22 is a deformable bag-shaped member formed according to the inner peripheral shape of the outer container 21.
Corresponding to, the body portion 221, the bottom portion 222, and the shoulder portion 223
And a mouth and neck 224. The inner container 22 is made of a resin such as nylon, which has a certain level of strength and can be thinly formed.

At the upper end of the mouth / neck portion 224 of the inner container 22, a flange 224a that engages with the upper end of the mouth / neck portion 214 of the outer container.
The flange 224a is sandwiched and fixed between the trigger-type pump dispenser 3 and the upper end of the mouth / neck portion 214 of the outer container 21, and is fixed to the inner circumference of the outer container 21 from the body portion 221 to the bottom portion 222. It has not been. Although a gap is drawn between the outer container 21 and the inner container 22 in FIG. 1, since they are actually integrally molded by blow molding, they are in contact with each other without a gap during molding. However, even though they are in contact with each other, they are not bonded.

Therefore, the inner container 22 is the outer container 21.
It is freely deformable inside. In this embodiment, the inner container 22 is shaped in accordance with the shape of the inner peripheral surface of the outer container 21, so that the space is utilized to the maximum extent.

Further, the mouth-neck portion 214 of the outer container 21 is
A vent hole 215 that communicates the space between the outer container 21 and the inner container 22 with the outside is provided. The position of the vent hole 215 is not limited to the mouth / neck portion 214 but may be on the bottom portion 212 or on the body portion 211.

The structure of the trigger type pump dispenser 3 will be briefly described below. The trigger head 301 having the discharge port 4 extending laterally, the container 2 and the trigger head 30.
1 and a retainer 302 that connects the two.

The retainer 302 is provided with a flange 302a that engages with the upper end of the neck portion 214 of the outer container 21. The flange 302a and the mouth / neck portion 21 of the outer container 21
The flange 224a provided at the upper end of the mouth / neck portion 224 of the inner container 22 is sandwiched between the four upper ends via the seal member 316, and is sealed by the fixing cap 317 screwed onto the outer periphery of the mouth / neck portion 214 of the outer container 21. Tightened and fixed.

Further, the retainer 302 is provided with a suction port 303. The lower end of the suction port 303 opens near the lower end of the neck of the container 2, and no dip tube extending to the bottom of the container is provided.

The trigger head 301 is a hollow member, and a hollow cylinder 304 is provided inside the hollow member.
The piston member 305 is inserted into the cylinder 304 from the bottom.
Is inserted so that it can be moved up and down. This piston member 3
By vertically moving 05, the volume of the pump chamber 306 between the cylinder 304 and the piston member 305 is expanded / contracted, and the content liquid is sucked / discharged.

The vertical movement of the piston member 305 causes the trigger lever 30 pivotally supported by the trigger head 301 to swing.
Operated by 7. That is, a spring 308 is installed in the pump chamber 306 to urge the piston member 305 downward from the cylinder 304 to expand the volume of the pump chamber 306, and the trigger lever 307 resists the spring force of the spring 308. By pulling
The volume in the pump chamber 306 is contracted to discharge the content liquid. When the discharge is completed, the volume of the pump chamber 306 is expanded by the spring force of the spring 308 to become a negative pressure, and the content liquid is sucked into the pump chamber 306.

In the discharge port portion 4, the content liquid is pump chamber 306.
A discharge valve mechanism 309 is provided which is closed when sucking into the inside and opened when discharging from the pump chamber 306.

Further, the suction passage 310 in the hollow piston member 305 for communicating the suction port 303 of the retainer with the pump chamber 306 is opened when the content liquid is sucked into the pump chamber 306, and is opened. A suction valve mechanism 311 is provided which closes when discharging from.

The intake valve mechanism 311 includes a valve seat 312 provided in the intake passage 310 and a valve body 31 that comes in contact with and separates from the valve seat 312.
3 and an elastic member 314 such as a spring that presses the valve body 313 against the valve seat.

Further, the conventional trigger type pump dispenser was provided with an air passage communicating with the atmosphere in order to eliminate the negative pressure generated in the container after the content liquid has flowed out. There is no passage, and the inside of the inner container 22 is always kept in a sealed state.

In the present invention, since the content liquid L is stored in the deformable inner container 22, when the content liquid L is sucked by the trigger type pump dispenser 3, the internal volume is reduced by that much. As a result, the inner container 22 is deformed, and the content liquid is smoothly sucked up without a negative pressure in the inner container 22. Further, although the gap between the inner container 22 and the outer container 21 is increased by the amount of contraction of the inner volume of the inner container 22, the inner container 22 is freely deformed because the gap is communicated with the atmosphere through the vent hole 215. .

Even when the container 22 is turned upside down or sideways, since the air layer does not exist inside the inner container 22, the content liquid L can be stably sucked, and the residual liquid amount in the container is minimized. It becomes possible to do.
FIG. 2 shows an inverted state, and the suction port 303 is always in contact with the content liquid L.

Further, since the elastic member 314 for pressing the valve body 313 of the suction valve mechanism 311 in the trigger type pump dispenser 3 against the valve seat 312 is provided, the valve body 313 separates from the valve seat 312 during the inverted use. Is prevented and the reverse liquid flow can be prevented.

In this embodiment, compared to the conventional container with a trigger type pump dispenser, the container has a double structure, the air passage of the pump dispenser is eliminated, and the suction valve mechanism is provided with an elastic member. It can be implemented with a slight modification and increased parts, and cost can be reduced.

Further, even if the remaining amount of the content liquid becomes small, since the suction port 303 is always opened in the content liquid L in the container 3, a dip tube or a suction pillar is basically unnecessary, and the cost is reduced. Is possible.

However, when the content liquid has a high viscosity with poor fluidity, there is a possibility that the inner container 22 will be constricted in the middle and a part of the inner peripheral surface will be adhered so that it will not flow.

FIG. 3 shows a preferred embodiment for such high viscosities.

That is, the dip tube 4 or the pillar 5 as a deformation restricting member extending so as to come into contact with the bottom portion 222 or the bottom portion 222 of the inner container 22 is provided to forcibly secure the flow space of the content liquid in the inner container 22. It is something that is done.

That is, FIG. 3A shows the dip tube 4
Is provided. A suction port is provided at the side of the tip of the dip tube 4 so as not to be blocked by the inner container 22. The dip tube 4 is preferably a hard member, but may be a soft material as long as the flow space can be secured.

FIG. 3B shows an example in which the pillar 5 is provided. A recessed groove 51 extending over the entire length of the pillar 5 in the longitudinal direction is provided on the outer periphery of the pillar 5. As shown in FIG. 7C, even if the inner container 22 is attached to the outer periphery of the pillar 5, the recessed groove 51 is formed. A passage is formed between the inner circumference of the inner container 22 and the inner circumference of the inner container 22.

By doing so, even if the content liquid has a high viscosity and poor fluidity, a flow space for the content liquid can be forcibly secured in the inner container 22, so that the content liquid is clogged. There is no fear.

[0052]

As described above, according to the present invention, since the content liquid is contained in the deformable inner container in a sealed state, even if the container is placed upside down or sideways, the inner container is kept inside. Since there is no air layer, it is possible to stably inhale the content liquid, and it is possible to minimize the residual liquid amount in the container, as well as bath detergent, ceiling and floor detergent, gardening, vehicles. It can be expected to have a wide range of uses such as cleaning, kitchen detergent, and selection. It

Further, by providing an elastic member for pressing the valve body of the suction valve mechanism in the trigger type pump dispenser against the valve seat, it is possible to prevent the reverse liquid flow during the inverted use.

Further, if a deformation regulating member for partially regulating the deformation of the inner container to secure a passage for allowing the flow of the content liquid is provided in the inner container, the content liquid has a high viscosity and the inner container has a high viscosity. Even if the internal fluidity is poor, the deformation restricting member ensures a passage for allowing the content liquid to flow, and the residual liquid can be further reduced.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view of a container with a trigger type pump dispenser according to an embodiment of the present invention.

FIG. 2 is a vertical cross-sectional view showing an inverted state of the container shown in FIG.

FIG. 3 is a view showing a container with a trigger type pump dispenser according to another embodiment of the present invention.

FIG. 4 is a view showing a conventional container with a trigger type pump dispenser.

FIG. 5 is a view showing another conventional container with a trigger type pump dispenser.

[Explanation of symbols]

 1 Container with trigger type pump dispenser 2 Container 21 Outer container 22 Inner container 3 Trigger type pump dispenser 4 Dip tube 5 Pillar 311 Suction valve mechanism 312 Valve seat 313 Valve body 314 Elastic member

Claims (3)

[Claims] 1. A container with a trigger type pump dispenser in which a trigger type pump dispenser is attached to the mouth and neck of the container, wherein the container is an outer container, and the container is housed in the outer container and sealed in the trigger type pump dispenser. A container with a pump dispenser, which comprises a deformable inner container that can be attached and stores the content liquid in the inner container. 2. The pump dispenser according to claim 1, wherein the suction valve mechanism in the trigger type pump dispenser is provided with an elastic member for pressing and holding the valve body against the valve seat with a predetermined force. With container. 3. The deformation regulating member for partially regulating the deformation of the inner container to secure a passage for allowing the flow of the content liquid in the inner container, according to claim 1 or 2. Container with pump dispenser as described.