JP2002173165A - Liquid injection pump - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a liquid injection pump having a simple structure in which a stem 5 is projected out of the upper end of an installed cap fitted to a port neck segment 3 of a container in such a way that it can be moved up and down under its upward urging state, an injection head 7 having a nozzle 6 is fitted to and fixed to the upper end of the stem and sound can be generated automatically at the time of liquid injecting operation. SOLUTION: A head cover 11 is arranged on an injection head 7 through a bellows 12 in such a way that it can be pushed down. There is provided a whistle 13 in which its one end is opened at a side surface of the bellows and the other end is opened into the bellows to generate sound through passing of air. The injection head 7 is moved up and down to cause the bellows to be extended or retracted, thereby the whistle 13 may generate sound.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a liquid ejection pump.

[0002]

2. Description of the Related Art As a liquid ejection pump, a mounting cap is fitted to the mouth and neck of a container body to be removably mounted on the container body, and a stem is projected from the upper end of the mounting cap so as to be able to move up and down while being urged upward. In addition, there is a known one in which a jetting head with a nozzle is attached and fixed to the upper end of a stem.

[0003] These are configured so that the liquid in the mounted container is ejected from the nozzle to the outside by the action of a built-in pump mechanism by the vertical movement of the ejection head.

[0004]

These liquid ejection pumps have conventionally been considered in terms of the function of liquid ejection. However, if the liquid ejection pump is provided so that the container emits an unusual tone during the liquid ejection operation. It is possible to soften or entertain the user. In addition, this can help differentiate products in a situation where there are many similar products.

The present invention has been made in view of such circumstances, and proposes an excellent liquid ejection pump which can automatically emit a sound during a liquid ejection operation and has a simple structure.

[0006]

According to a first aspect of the present invention, there is provided a liquid jet pump according to the present invention, in which a mounting cap is fitted to a mouth and neck portion of a container to be detachably mounted on the container. At the same time, the liquid ejecting pump in which the stem 5 protrudes from the upper end of the mounting cap so as to be able to be pushed downward in an upwardly biased state, and the ejecting head 7 with the nozzle 6 is fitted and fixed to the upper end of the stem, is vertically installed on the front surface. A head cover 11 having a top cylindrical shape with an opening at the lower end face, the lower end of which is opened so as to be able to be pushed down around the ejection head 7 by projecting the nozzle 6 from the vertical groove 14, and the lower surface of the cover and the ejection head 7. A bellows 12 interposed between the bellows and an upper surface, one end of which is opened on the side surface of the bellows, and the other end is opened in the bellows, and a whistle 13 which emits a sound by passing air is provided. Make sound by vertical movement The liquid ejection pump is characterized in that it is well structured.

[0007]

Embodiments of the present invention will be described below with reference to the drawings.

In the liquid jet pump 1 of the present invention, the mounting cap 4 is fitted to the mouth and neck portion 3 of the container body 2 to be removably mounted on the container body, and the stem 5 is capable of being pushed downward from the upper end in a state of being urged upward from the upper end. And a jet head 7 with a nozzle 6 is fitted and fixed to the upper end of the stem.

In the illustrated example, the upper end of a pipe 9 is fitted to the lower end of a cylinder 8 which hangs down in the container body 2, and the stem is movable upward and downward in a biased state above the upper end surface of an auxiliary cap 10 projecting from the upper surface of the mounting cap 4. A projection head 7 having a cylindrical outer periphery is fitted and fixed to the upper end of the stem.
Then, the liquid in the container body 2 is sucked up from the pipe 9 by the action of the built-in pump mechanism by the vertical movement of the ejection head 7 and is ejected from the nozzle 6.

According to the present invention, in this kind of liquid jet pump, a head cover 11 and a bellows 12 are provided, and the bellows 12 is provided with a whistle 13.

The head cover 11 has a top-end cylindrical shape having an opening at the lower end surface in which the nozzle 6 is vertically movably protruded by a vertical groove 14 provided on the front surface and the lower portion is fitted to be able to be pushed down around the ejection head 7. No. In the illustrated example, the lower wall is formed to have a slightly larger diameter through the downward stepped portion.
Is formed in a cylindrical shape with an opening at the lower end surface, and a bellows 12
And the locking ridge 17 protruding from the inner periphery of the small diameter portion at the downward step position is abutted against the peripheral edge of the lower surface of the ejection head 7 to prevent further upward movement. ing.

The bellows 12 is attached to the top wall 16 of the head cover 11.
The head cover 11 is interposed between the lower surface and the upper surface of the ejection head 7 to transmit the pressing force of the head cover 11 to the ejection head 7, and supports the head cover 11 when not in use. In the illustrated example, a cylindrical short tubular portion 19 is provided at the center in the vertical direction of the foldable wall 18 having a stretchable tubular shape, and the upper and lower ends of the foldable wall 18 are closed by a top plate 20 and a bottom plate 21, and , Short tube part 19
One end is opened and a flute 13 is provided. Further, the top plate 20 is fixed to the lower surface of the top wall 16 of the head cover by an appropriate fixing means such as adhesion or welding.

The whistle 13 emits a sound due to the passage of air. When the head cover 11 is depressed to compress and deform the bellows 12, the air in the bellows 12 is discharged to the outside through the whistle 13, or The pressing of the head cover 11 is released, and the bellows 12 that has been compressed and deformed is elastically restored to the original state and emits a sound when the outside air is introduced into the bellows 12 through the whistle 13.

The whistle 13 in the present embodiment is a short cylindrical portion of the bellows 12.
One end of the outer periphery is fitted airtightly into a window hole 22 formed in the outer peripheral portion 19, and a ridge 23 provided on the one end edge of the outer periphery is engaged with the outer surface of the pleated wall 18 and the short cylindrical portion 19, thereby It has a cylindrical outer cylinder 24 that prevents the above-mentioned pushing. In addition, one end is an outer cylinder
A vent path a is opened at one end of the outer cylinder 24 and the other end is opened in the outer cylinder 24 at right angles to the longitudinal direction. The opening in the outer cylinder 24 can be vibrated with a small gap b at the peripheral edge. Covered by reed valve 25.

More specifically, as shown in FIG. 2, a semicircular closing plate 26 for closing the rear opening of the outer cylinder 24 by half is provided, and the outer cylinder 24 is moved inward from the center edge of the closing plate. A partition wall 27 that substantially divides the inner rear end into two parts is extended,
On the inner periphery, a second partition 28 having a semicylindrical shape extending inward from the partition 27 and having a distal end surface curved and closed is provided.
To form a ventilation path a, and to hold the rear part of the reed valve 25 between the partition wall 27 and the second partition wall 28,
The front portion opens upwardly in front of the partition wall 27 and covers the opening portion with a small gap b so as to be able to vibrate. Then, when air flows outward from the inside of the outer cylinder 24,
It is configured to emit sound.

The reed valve 25 can be formed of synthetic resin, paper, metal, or a composite thereof, and can produce various levels and tones by selecting the material and adjusting the width of the small gap a. .

The flute 13 is not limited to the one in the above embodiment,
Various specific structures can be adopted as long as the sound is generated by the passage of air. Further, in the above-described embodiment, the configuration is such that a sound is generated when air is discharged from the inside of the bellows 12 through the whistle 13, but conversely, the contracted bellows 12 is elastically restored and the outside air is restored to the whistle 13. May be configured to emit a sound when introduced into the bellows 12 through the bellows. However, in the former case, a sound is generated more quickly when the liquid is poured out as compared with the latter case, so that there is an advantage that discrimination by hearing can be performed more effectively.

The pump 1 may be provided with a thread at the upper part of the outer periphery of the stem 5 so that it can be screwed in a state where the stem 5 is pushed down, as shown in FIG.
A stopper 29 may be provided between the head cover 11 and the container body 2 to prevent the head cover 11 from being inadvertently pushed down. The stopper 29 in the illustrated example has a base 30 having an arc shape capable of abutting the upper surface on the lower surface of the head cover 11, and a plate-like projection 31 that abuts and locks on the upper surface of the container body 2 from the inner surface of the base 30 in the circumferential direction. Multiple projecting,
Also, a handle 32 protrudes from a part of the outer surface.

When the liquid jet pump 1 is used, for example, when the head cover 11 is pushed down from the state shown in FIG. 1, the bellows 12 is pushed down while the bellows 12 are compressed and deformed as shown in FIG. The liquid is ejected from the nozzle 6 by the action of the built-in pump mechanism. At this time, the air in the bellows 12 is discharged to the outside via the whistle 13 and emits a sound. Then
When the pressing of the head cover 11 is released, the ejection head 7 is raised by the upward urging force, and
Also, the bellows 12 return to the original state separated from the ejection head 7 by the elastic restoring force.

[0020]

As described above, the liquid ejector according to the present invention has the above-described structure, and automatically emits a sound when the liquid is ejected. It has the effect of relaxing or entertaining.

By emitting sound, a unique presence is produced in many commodities, which is useful for so-called differentiation. Moreover, since it can be formed simply by attaching a head cover and a bellows with a whistle to this type of conventional pump, there is an advantage that the pump is versatile and can be manufactured at low cost.

[Brief description of the drawings]

FIG. 1 is a partially cutaway side view showing one embodiment of the present invention.

FIG. 2 is an enlarged vertical sectional view of a bellows portion in the embodiment.

FIG. 3 is a partially cutaway side view showing a state where the head is pressed down in the embodiment.

FIG. 4 is a partially cutaway side view when the stopper of the embodiment is mounted.

[Explanation of symbols]

2 ... container body, 3 ... mouth and neck, 4 ... mounting cap, 5 ... stem, 6 ... nozzle, 7 ... ejection head, 11 ... head cover,
12 ... bellows, 13 ... whistle, 14 ... vertical groove, 16 ... top wall

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Kazuhito Kuwahara 3-6 Oshima Yoshino Kogyo Co., Ltd., Koto-ku, Tokyo (72) Inventor Shigeo Iizuka 3-2-6 Oshima Yoshiko, Koto-ku, Tokyo F-term in the Nokoro Works (reference) 3E084 AA04 AA12 AA24 AB01 BA02 CA01 DA01 DB12 DC03 FA09 FB01 GA04 GB11 JA09 LB02 LB07 LC01 LD23

Claims (1)

[Claims] An attachment cap is fitted to a mouth and neck portion of a container to be removably attached to the container, and can be pushed down from an upper end of the attachment cap in an upwardly biased state.
And a jetting head 7 with a nozzle 6 fitted and fixed to the upper end of the stem. A head cover 11 having a lower end surface opening and having a top cylindrical shape fitted so as to be able to be pushed down onto the head cover, and a top wall of the cover.
The bellows 12 has a bellows 12 interposed between the lower surface of the bellows 16 and the upper surface of the ejection head 7, and has one end opened on the side surface of the bellows, the other end opened in the bellows, and a whistle that emits a sound due to the passage of air.
13. A liquid ejection pump characterized in that it is provided with 13 and emits sound when the ejection head moves up and down.