JP2596844Y2 - Pump container for foam release - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a foam discharge pump container.

[0002]

2. Description of the Related Art For example, a container disclosed in International Publication No. W092 / 08657 (Japanese Patent Application No. 2-515082) is known. The container has a container body erecting the mouth and neck, and an outward flange attached to the upper outer surface is engaged with the upper surface of the mouth and neck of the container body, and a large-diameter cylinder is vertically installed in the container body. A cylinder member that hangs a small-diameter cylinder with a suction valve from the lower end of the cylinder through a folded cylinder portion inward and upward, and an inward flange at the upper end of the cylinder portion fitted to the outer surface of the mouth and neck portion. A small-diameter stem is erected from a cap-shaped member sandwiched between the upper end of the mouth and neck and a small-diameter cylindrical piston fitted into the small-diameter cylinder, and a discharge valve is provided at the upper end of the stem; An operating member that fits the large-diameter cylindrical piston fitted inside to the outer surface of the small-diameter stem to raise the large-diameter stem, and a large-diameter cylinder from the outer periphery of the top wall that penetrates the large-diameter stem vertically. To the outer surface of the upper end of the Has a cap-like member extending downward, and the large-diameter nozzle with pressing head was fitted to the upper outer surface of the stem and,
A short tube having a foamed net stretched on both upper and lower surfaces is fitted into a fitting tube portion which is suspended from the press-down head and fitted to the outer surface of the large-diameter stem, and the operating member is urged upward by a spring. A large-diameter stem portion between the discharge valve and the short cylinder with a net via an air intake valve provided on the top plate of the large-diameter cylindrical piston and an air flow passage formed between the large and small stems. An outside air suction passage that opens inward is provided.

In the above-mentioned container, when the push-down head is pushed down against the urging, both the small-diameter cylindrical piston and the large-diameter cylindrical piston descend in the small-diameter and large-diameter cylinders, so that the small-diameter cylinder has The liquid passes through the discharge valve, and the air in the large-diameter cylinder passes through the air flow passage between the large and small stems and merges in the upper end of the large-diameter stem. When the operation member is released and the depression of the operating member is released, the air suction valve opens due to the rise of the large and small cylindrical pistons, and the outside air enters the large diameter cylinder, and the discharge valve closes and the suction valve opens, thereby opening the small diameter cylinder. The liquid in the container is provided so as to flow into each container.

[0004]

The conventional foam discharging pump container has a unique structure including a foam discharging container including the above-mentioned conventional example. By the way, conventionally, a pump type container for spraying and discharging a liquid as it is is known, and a pump type liquid discharger used for these is only different in a pressing head at an upper end of an operating member, and other parts are completely different. It has the same configuration. In this way, if it is possible to make a dispenser for another type of container simply by changing a part, mass-producing parts having the most complicated structure and high cost can be mass-produced as a common member, so that the overall cost can be reduced. I can do it.

[0005] In the present invention, at the lower end of the pump type liquid ejector,
A three-way pipe member capable of sucking the liquid in the container and the air above the liquid level in the container is mounted together with the first foaming net, and the short pipe with the second foaming net is fitted to the inner surface of the fitting portion between the stem and the pressing head. The present invention proposes an inexpensive and easy-to-use foam discharge pump container.

[0006]

Means for Solving the Problems A container body 1 having a mouth and neck standing up, a cylinder 5 with a first suction valve 6 attached to the container body and neck and hanging down into the container, and from the inside of the cylinder. A pump type in which a cylindrical piston 9 is provided at a lower end of a stem 8 having a discharge valve 14 on an inner surface of an upper end, a press-down head 11 with a nozzle is provided at an upper end of the stem, and an operating member 12 attached thereto is urged upward. A liquid discharger 18; a three-way tube member 20 which fits and joins a merging tube portion 21 with a first foam net 19 into the suction tube 7 hanging down from the lower end of the cylinder; the stem 8 and the pressing head 11 The three-way pipe member 20 communicates with the junction pipe section 21 via a second suction valve 25 to form a container. Liquid dripping down to the bottom of the body A write pipe 28, the second suction valve 25
Above the junction pipe portion and directly communicating, and a air suction pipe 27 which protrudes to the container body top, also to the actuating member increases
The container body passes through each tube by negative pressure in the cylinder
Both liquid and air can be sucked into the cylinder
To the extent possible, the air suction pipe is
The diameter of the tube hole of the portion 27 was reduced.

[0007]

When the push-down head 11 is pushed down from the state shown in FIG. 1, the foamy liquid in the cylinder 5 is passed through the stem 8 and the discharge valve 14 by the lowering of the cylindrical piston 9 and is further fined by passing through the second foaming net 30. The bubbles are released from the nozzle 10 as a group of bubbles. Next, when the press-down head 11 is released, the cylindrical piston 9 is pushed up by the spring 13 to create a negative pressure in the cylinder 5, and the negative pressure causes the liquid to pass through the liquid suction pipe 28 and the second suction valve 25. In addition, the air in the upper part of the container passes through the air suction pipe portion 27, enters into the merging pipe portion 21, mixes, and further flows through the first foaming net 19, passes through the first suction valve 6 and passes through the cylinder 5 Then, the user moves in and prepares for the next depression of the pressing head 11. The above liquid
Pipe hole diameter of air suction pipe 27 with respect to body suction pipe 28
Has a small diameter, and by doing so,
Easy suction of liquid, both liquid and air in cylinder
Provided to be sucked into.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS First, a conventional well-known container body and a pump-type liquid ejector 18 will be briefly described. Reference numeral 1 denotes a container body which stands up from the mouth and neck, and a mounting cylinder 2 is provided on the outer surface of the mouth and neck of the container body. The flanged cylinder 5 is suspended from the inside of the container by sandwiching the outward flange 4 between the inward flange 3 at the upper end of the mounting cylinder and the upper end face of the mouth and neck portion. The cylinder has a first suction valve 6 in the bottom and hangs a suction pipe 7 from the lower end. From inside the cylinder, an operating member 12 provided with a cylindrical piston 9 at the lower end of the stem 8 and a pressing head 11 with a nozzle 10 at the upper end of the stem is urged upward by a spring 13 to stand. Press-down head
Reference numeral 11 denotes a head having no spin function for discharging a liquid, not a head having a spin mechanism for spraying. A discharge valve 14 is provided in the upper end portion of the stem 8, and the stem 8 is vertically movably penetrated through a support tube 15 fitted to a fitting tube 5a standing upright from the upper end of the cylinder. In some cases, a rod 16 for guiding the cylindrical piston 4 is erected from the bottom of the cylinder.

A confluent pipe section 21 with a first foam net 19 of a three-way pipe member 20 is fitted into the suction pipe 7 from which the lower end of the cylinder of the pump type liquid discharger hangs. As shown in FIG. 2, the member is a main member that rises from the top wall 23 of the large-diameter pipe portion 22 with the converging pipe portion 21 and the air pipe insertion pipe portion 24 by communicating with the inside of the large-diameter pipe portion. The upper portion is fitted into the large-diameter cylindrical portion 22 and hangs down.
A small-diameter air suction pipe part 27 having a lower part fitted into the air insertion pipe part 24 and rising to the upper part of the container body; And a large-diameter liquid suction pipe 28 which is fitted to the bottom of the container and hangs down to the bottom of the container. A gap is provided between the top wall 23 of the large diameter pipe section 22 and the upper end of the auxiliary cylindrical member 26, and the air suction pipe section 27 and the junction pipe section 21 are communicated through the gap.
The first foaming net 19 is stretched on the upper end surface of the junction tube 21.

A short pipe 31 with a second foam net 30 is fitted to the inner surface of the fitting portion between the stem 8 and the press-down head 11. In order to position the short tube, an engaging ridge 11b is vertically provided on the upper inner surface of the stem fitting tube 11a, which hangs from the pressing head, and the short ridge is formed between the lower end surface of the ridge and the upper end surface of the stem. Tube 31
Has been pinched. The second foamed net is stretched on both upper and lower end surfaces of the short pipe 31, but may be stretched on only one of them.

FIG. 4 shows a second embodiment. In this embodiment, the structure of the auxiliary pipe member 26 is different. From the upper surface of the capped cylindrical portion 26a fitted in the large-diameter tubular portion 22 of the main member in a water-tight manner, the auxiliary tubular member 26 is communicated with the inside of the cylindrical portion. A valve cylinder 26b is erected in the merging pipe portion 21 and a ball valve is mounted on the valve cylinder to form a second suction valve 25. Further, the lower portion of the top cylinder portion 26a below the valve cylinder 26b is formed as a fitting cylinder portion 26c of the liquid suction pipe portion. As in the case of the first embodiment, a gap is provided between the top wall of the large-diameter pipe portion and the top wall of the top cylinder portion, and a gap is also provided between the outer surface of the valve cylinder and the inner surface of the confluence pipe portion 21. Air suction pipe section 27
The inside and the inside of the merging pipe part above the second suction valve are communicated. Other structures are the same as those of the first embodiment.

[0012]

According to the present invention, the pump type liquid discharger 18 as a main member is the same as a conventionally used liquid type pump discharger, and a pump type liquid discharger for spraying. Since only the press-down head with nozzle is different for the dispenser, the effect of mass production can be expected by expanding the application of the pump-type dispenser. It is only necessary to fit the merging pipe portion 21 of the three-way pipe member 20 into the suction pipe 7 and to fit the short pipe 31 with the second foam net 30 into the fitting portion between the stem 8 and the pressing head 11. Therefore, it can be manufactured very easily. Further, since the structures of the three-way pipe member and the short pipe with the second foamed net are simple, the cost can be made extremely low in combination with the mass production effect of the pump type liquid discharger. In addition, liquid suction
The diameter of the pipe hole of the air suction pipe section 27 with respect to the pipe section 28 is
Of liquid in the container through negative pressure
And the air are both sucked into the cylinder.
Therefore, only liquid or air can enter the cylinder by itself.
In addition, foaming can be ensured.

[Brief description of the drawings]

FIG. 1 is a half sectional view of a container according to the present invention.

FIG. 2 is a perspective view of a main member used for the container.

FIG. 3 is a sectional view of another main member used for the container.

FIG. 4 is a half sectional view of a container according to another embodiment.

[Explanation of symbols]

18 ... Pump type liquid ejector 20 ... Three-way tube member 31 ... Short tube

Claims (1)

(57) [Scope of request for utility model registration] 1. A container body 1 having an upright mouth and neck, a cylinder 5 with a first suction valve 6 attached to the mouth and neck of the container and hanging down into the inside of the container. A cylindrical piston 9 is provided at the lower end of a stem 8 having a discharge valve 14, and a press-down head 11 with a nozzle is provided at the upper end of the stem.
A pump-type liquid ejector 18 that is erected by urging the attached operating member 12 upward and a suction pipe 7 with a first foam net 19 are fitted into the suction pipe 7 that hangs down from the lower end of the cylinder. Three-way tube member 20 to be worn and hung down
And a short pipe 31 with a second foam net 30 fitted to the inner surface of the fitting portion between the stem 8 and the press-down head 11. The three-way pipe member 20 is connected via a second suction valve 25 to the above-mentioned three-way pipe member 20. A liquid suction pipe section 28 that communicates with the junction pipe section 21 and hangs down to the bottom of the container; an air suction pipe section 27 that directly communicates with the inside of the junction pipe section above the second suction valve 25 and protrudes to the upper portion of the container; And the cylinder is raised
The liquid inside the container and the air
The degree to which both air and air can be sucked into the cylinder
Of the air suction pipe 27 with respect to the liquid suction pipe 28.
A foam discharge pump container characterized in that the diameter of the tube hole is reduced .