JPH10328587A - Liquid ejector - Google Patents

Abstract

(57) [Problem] To provide a liquid ejector in which a dip tube is firmly attached to a retainer of an ejector main body. A retainer (1) assembled to a liquid ejector (1).
The inner projection 17b has two or more annular projections 20, 1
Alternatively, a plurality of vertical ribs 21 or a combination thereof is provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid ejector which is used by being attached to the mouth and neck of a container, and more particularly to a dip tube for sucking up a liquid content.

[0002]

2. Description of the Related Art As shown in FIG.
It is well known that one annular undercut 104 for engaging a dip tube 103 is provided on the inner surface of a retainer 102 below the ejector 101 for ejecting the content liquid in the container from 7.

Further, recently, in order to reduce the content of the liquid in the container, a liquid ejector in which a dip tube is bent in the ejecting direction of the ejector and engaged with a retainer has been proposed (Japanese Patent Laid-Open No. 8-332422). ) Has been.

[0004]

However, in the case of the above-described prior art, after filling the container with the liquid content, it is attempted to mount the ejector main body in which the dip tube is engaged with the retainer to the container using the container cap. The other end of the dip tube is caught on the top surface or inner surface of the nozzle of the container, and as a result, an unexpected external force is applied to the engaging portion, so that the other end of the dip tube facing the spray direction of the sprayer is different. There is a problem that it is turned in the direction or comes off the engaging portion.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems. It is an object of the present invention to mount a sprayer on a container without using any special device or method, and furthermore, a dip tube. The object of the present invention is to provide a liquid ejector which is firmly locked to the sprayer body.

[0006]

A liquid ejector body attached to the mouth and neck of a container, and a dip tube having one end connected to the liquid ejector body and the other end extending into the container and submerged in a liquid content. And a dip tube engaging projection comprising two or more annular projections is provided on at least one of the inner and outer surfaces of the retainer below the liquid ejector, where one end of the dip tube is fitted. It is characterized by having.

[0007] A liquid having a liquid ejector main body attached to the mouth and neck of a container, and a dip tube having one end connected to the liquid ejector main body and the other end extending into the container and immersed in a liquid content. In the ejector, one end of the dip tube is fitted, and at least one of the inner and outer surfaces of the retainer below the liquid ejector is provided with a dip tube locking projection composed of one or more vertical ribs. Features.

[0008] A liquid having a liquid ejector main body attached to the mouth and neck of a container, and a dip tube having one end connected to the liquid ejector main body and the other end extending into the container and submerged in the content liquid. In the ejector, one end of the dip tube is fitted, and at least one of the inner and outer surfaces of a retainer below the liquid ejector, a dip tube locking member comprising two or more annular projections and one or more vertical ribs. It is characterized by having a projection.

[0009]

According to the present invention, since the retaining projections are provided on at least one of the inner and outer surfaces of the retainer for retaining the dip tube at the lower portion of the liquid ejector main body, the ejector main body retaining the dip tube can be used. When mounting on a container, mounting is possible using the same device as before.

[0010] Further, the locking projections may include two or more annular projections,
Or a plurality of vertical ribs, or two or more annular protrusions and one
Alternatively, since a plurality of vertical ribs are provided, the contact area between the dip tube and the retainer can be increased, and the engagement of the dip tube becomes strong.

[0011]

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

[First Embodiment] FIGS. 1 and 2 show:
1 shows a liquid ejector according to a first embodiment of the present invention.

As shown in FIG. 1, the liquid ejector 1 rotates the trigger lever 2 about the fulcrum 4 by pulling the trigger lever 2 against the spring force of the leaf spring 3, thereby causing the piston member 5 to move. When the suction valve 7 is pushed into the cylinder 6 and the suction valve 7 is closed, the inside of the cylinder 6 is compressed,
And discharge the compressed content liquid. Then, the content liquid that has passed through the discharge valve 8 further passes through a gap between the valve insert 9 and the inner cylinder 11 of the nozzle 10, and is diffused and jetted from the jet port 13 while being swirled by the swirl chamber 12.

A retainer 1 is provided at a lower portion of the liquid ejector 1.
7 is incorporated, and the flange extending outward from the outer cylindrical portion 17a of the retainer sandwiches the packing 15 between the container cap 14 and the nozzle top surface of the container 16, so that the liquid ejector 1 It is attached to.

Further, a dip tube 18 having a bent portion 19 extending inwardly of the container is inserted into the lower inner surface of the inner cylindrical portion 17b of the retainer 17.

FIG. 2 is an enlarged view of a lower portion of the retainer 17, and two annular semi-circular protrusions 2 each having a semicircular cross section toward the center are provided on the inner surface of the inner cylindrical portion 17b of the retainer 17.
The dip tube 18 is fitted over zero. Then, the dip tube 18 is elastically deformed by climbing over the projection 20 and is firmly locked to the retainer 17.

The projection 20 may have a semicircular cross section as shown in the figure, or may have an undercut shape having a tapered surface that gradually rises upward. Furthermore, if a notch is provided along the circumferential direction, the notch surface prevents the dip tube 18 from dropping and twisting, and is firmly locked.

[Second Embodiment] FIG. 2 shows a second embodiment of the present invention.
Is shown.

In the second embodiment, a retainer 17 is incorporated in the liquid sprayer 1 of the first embodiment shown in FIG. A dip tube 18 having a bent portion 19 similar to that of the first embodiment is inserted into a lower portion of the inner cylindrical portion 17B of the retainer 17.

As shown in FIG. 2A, a vertical rib 21 is provided on the dip tube 18 fitting surface of the retainer 17 to partially deform the outer surface of the dip tube 18. While locking. Further, as shown in FIG. 2B, the vertical ribs are provided at two opposing positions of the sliding surface of the dip tube 18 so as to resist an external force for forcibly rotating the dip tube 18. And are firmly locked.

The vertical ribs are preferably vertical ribs extending inward of the container in terms of forming the retainer, but may be inclined or spirally shaped.

[Other Embodiments] In the above embodiment,
Although the annular projection 20 or the vertical rib 21 is used as the locking projection, a projection having a combination of these may be used. In this case, the dip tube 18
Can prevent falling from the retainer 17 and sufficiently prevent rotation.

In addition to the trigger type liquid ejector, the above-described retainer can be assembled to a pump type liquid ejector used for discharging shampoo and rinse.

[0024]

As described above, the present invention has the above-described structure and operation. Since the mounting of the dip tube to the retainer becomes strong, it is possible to prevent the dip tube from dropping or twisting due to external force.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing an overall configuration of a liquid ejector to which a first embodiment of the present invention is applied.

FIG. 2 is an enlarged sectional view of a retainer portion of the liquid ejector of FIG. 1;

FIG. 3 is an enlarged explanatory view of a retainer portion of a liquid ejector according to a second embodiment of the present invention, wherein FIG. 3 (a) is a longitudinal sectional view, and FIG. FIG. 3A is a sectional view taken along line AA of FIG.

FIG. 4 is a view showing a conventional liquid ejector.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 liquid ejector 2 trigger lever 3 leaf spring 4 fulcrum 5 piston member 6 cylinder portion 7 suction valve 8 discharge valve 9 valve insert 10 nozzle 11 inner cylinder 12 vortex chamber 13 jet port 14 container cap 15 packing 16 container 17 retainer 17a (retainer) ) Outer tube part 17b (Retainer) Inner tube part 18 Dip tube 19 Bend part 20 Projection 21 Vertical rib

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[Procedure amendment]

[Submission date] July 24, 1997

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Brief description of drawings

[Correction method] Change

[Correction contents]

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing an overall configuration of a liquid ejector to which a first embodiment of the present invention is applied.

FIG. 2 is an enlarged sectional view of a retainer portion of the liquid ejector according to the first embodiment of FIG.

FIG. 3 (a) is an enlarged longitudinal sectional view of a retainer portion of a liquid ejector according to a second embodiment of the present invention, and FIG. 3 (b) is an AA of FIG. 3 (a). It is a line sectional view.

FIG. 4 (a) is an overall view showing a conventional liquid ejector, and FIG. 4 (b) is an enlarged longitudinal sectional view of a retainer portion of FIG. 4 (a).

[Procedure amendment 2]

[Document name to be amended] Drawing

[Correction target item name] All figures

[Correction method] Change

[Correction contents]

FIG. 2

FIG.

FIG. 3

FIG. 4

Claims (3)

[Claims] 1. A liquid ejector main body attached to the mouth and neck of a container, and a dip tube having one end connected to the liquid ejector main body and the other end extending into the container and immersed in a liquid content. In the liquid ejector, one end of the dip tube is inserted and fitted, and at least one of inner and outer surfaces of a retainer below the liquid ejector is provided with a dip tube locking projection composed of two or more annular projections. And liquid ejector. 2. A liquid ejector main body attached to the mouth and neck of a container, and a dip tube having one end connected to the liquid ejector main body and the other end extending into the container and immersed in a liquid content. A liquid ejector, wherein at least one of inner and outer surfaces of a retainer below the liquid ejector into which one end of the dip tube is inserted.
Alternatively, a liquid ejecting device provided with a dip tube locking projection composed of a plurality of vertical ribs. 3. A liquid ejector body attached to the mouth and neck of a container, and a dip tube having one end connected to the liquid ejector body and the other end extending into the container and immersed in a liquid content. A liquid ejector, wherein at least one of inner and outer surfaces of a retainer below the liquid ejector into which one end of the dip tube is inserted.
A liquid ejector comprising the above-mentioned annular projection and one or more vertical ribs for holding a dip tube.