JPH10249250A - Push-down head for liquid dispenser - Google Patents

Abstract

PROBLEM TO BE SOLVED: To spray out a viscous liquid to in a spread belt fashion by providing a nozzle whose front part is spread with a nozzle hole having a narrow gap between the bottom face and the upper face, on the upper front part of a stem fitting cylinder and attaching a liquid control mechanism which causes the viscous liquid to be jetted into the nozzle hole to spread to the right and the left. SOLUTION: A mounting cylinder 2 is fitted into the outer face of the mouth and neck part of a container, then a liquid contained in the container is sucked into a cylinder 3 through a suction valve 9, and is spewed out of a nozzle 36 on the push-down head 21 through a first and a second discharge valve 10, 11. In this liquid spewer, the push-down head 21 is formed of two members such as a push-down head body 21a and a top plate member 21b, then the front part is spread in a planar fan fashion and the nozzle 36 is formed which has a nozzle hole 35 with a narrow gap between the bottom face and the upper face. In addition, a first liquid control plate 34 for spreading to the right and the left a viscous liquid to spew out passing through the nozzle hole 35, is installed protruding from a bottom plate 23 or a top plate part 31 into the nozzle hole 35.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a press-down head for a so-called vertical pump type liquid ejector.

[0002]

2. Description of the Related Art For example, as shown in JP-A-9-24310,
2. Description of the Related Art A vertical pump type liquid ejector is widely known and used. The liquid ejector includes an operating member which is urged upward from the cylinder and rises up. A press-down head with a nozzle is fitted onto the cylinder, and the liquid in the container is sucked up into the cylinder by the vertical movement of the operating member, and the liquid in the cylinder is ejected from the nozzle through the stem and the press-down head. Is provided. The push-down head is formed by fitting a stem fitting tube hanging down from the lower surface of the head to the outer surface of the upper portion of the stem, and connecting a nozzle projecting forward from the front surface of the head to the upper portion of the stem fitting tube. Except for a coil spring for urging the normal operation member upward and a ball valve for forming the suction valve and the discharge valve, all the constituent members of the liquid ejector are formed of a synthetic resin material.

[0003]

The above-mentioned liquid ejector is also used for ejecting a cosmetic liquid, and is used by ejecting a liquid having a certain degree of viscosity to a puff-shaped applicator called cosmetic cotton. However, the liquid ejector ejects the liquid in the cylinder from the nozzle by increasing the pressure in the cylinder by pushing down the operating member, and the pushing down head only makes the upper part of the stem fitting cylinder communicate with the nozzle. Viscous liquid is attached to only part of the cotton and swells,
The adhesion range expanded over time. However, from the viewpoint of convenience in using the cotton, it is desirable that the cotton can be attached to the upper surface of the cotton while being spread widely. The present invention provides such a viscous liquid ejection.

[0004]

As a first means, a nozzle hole having a flat fan shape from the upper front portion of the stem fitting cylinder 22 and having a widened front portion and a narrow gap between the bottom surface and the top surface is provided. 35
A liquid control mechanism for expanding the viscous liquid ejected through the inside of the nozzle hole in the left and right direction is provided inside the nozzle hole 35 while communicating the nozzle 36 having Attached.

[0005] As a second means, the front end of the upper end of the stem fitting tube 22 is cut out, and a flat fan-shaped bottom plate 23 is extended and protruded forward from the lower edge of the notch. A pressing head body 21a and a top plate 31 for covering the pressing head body from above.
A top plate member 21b made of synthetic resin, which is fitted to the upper end portion of the stem fitting tube 22 and hangs down the fitting tube 32 of the front notch, the bottom plate 23, and the top plate above the bottom plate. The top plate portion and side plates protruding from one or both of the left and right sides of the bottom plate or the top plate portion have a nozzle hole 35 whose front portion is expanded in a plane fan shape and a gap between the bottom surface and the top surface is narrowed. A first liquid control plate 34 for expanding the viscous liquid ejected through the inside of the nozzle hole in the left-right direction is provided to project from the bottom plate 23 or the top plate portion into the nozzle hole.

As a third means, a front portion of the upper end of the stem fitting tube 22 is cut out, and a fan-shaped bottom plate 23 having a rearward stepped portion 37 is formed to protrude forward from the lower edge of the notch. From the synthetic resin pressing head body 21a and the top plate 31 covering the upper part of the pressing head body, the fitting tube 32 of the front notch is fitted down to the upper end of the stem fitting tube 22 to hang down. A top plate member 21b made of a synthetic resin, the bottom plate 23, a top plate portion above the bottom plate, and side plates protruding from one or both of the left and right sides of the bottom plate and the top plate portion. Nozzle hole with a widened front portion and a narrow gap between the bottom and top surfaces
35 formed.

As a fourth means, from the upper front part of the stem fitting cylinder 22, the front part is expanded in a side fan shape and the nozzle 36 having a nozzle hole 35 provided with a narrow gap between the right and left side surfaces.
A liquid control mechanism is provided in the nozzle hole 35 so that the viscous liquid ejected through the nozzle hole is vertically expanded in the nozzle hole 35.

As a fifth means, there is provided a synthetic resin press-down head main body 21a in which a front end of an upper end of the stem fitting tube 22 is cut out and a bottom plate 23 is projected from a lower edge of the cut-out to a lower front. From the top plate 31 covering the upper part of the press-down head main body, the fitting plate 32 is fitted to the upper end portion of the stem fitting tube to hang down the fitting tube 32 of the front notch, and the top plate portion above the bottom plate is inclined forward. A top plate member 21b made of synthetic resin that projects, the bottom plate 23, a top plate portion above the bottom plate, and side plates protruding from one or both of the left and right sides of the bottom plate or the top plate portion. A second liquid control for forming a nozzle hole 35 having a front fan-shaped opening in a side fan shape and a narrow gap between the left and right plates, and vertically expanding a viscous liquid ejected through the nozzle hole. Board 45,
It was installed horizontally between the left and right side plates.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference numeral 1 denotes a liquid ejector shown as a known embodiment, which hangs a cylinder 3 from the upper part of a mounting cylinder 2 provided to be fitted to the outer surface of the mouth and neck of a container body. From within the cylinder, the operating member 6 having the cylindrical piston 5 at the lower end of the stem 4 and having the push-down head 21 fitted at the upper end of the stem is urged upward by a spring 7 to rise and move up and down. Then, the liquid in the container is sucked into the cylinder through a suction valve 9 formed by the lower end of the poppet 8 and the inner surface of the bottom of the cylinder, and the liquid in the cylinder is pushed through first and second discharge valves 10 and 11. The nozzle can be ejected from the nozzle of the lowering head. Reference numeral 12 denotes a stem insertion tube fitted to the inner surface of the upper end of the cylinder, and reference numeral 13 denotes a cover. The liquid ejector is not limited to the illustrated example, and any liquid ejector may be used as long as an actuating member having a pressing head fitted to the upper end of the stem is raised from the inside of the cylinder.

In the present invention, the pressing head 21 is formed as follows. First, a first embodiment shown in FIGS. 1 to 3 will be described. The pressing head is composed of two members, a pressing head main body 21a and a top plate member 21b, and these two members are integrally formed of a synthetic resin material. And these two members are integrally fitted and formed.

The push-down head body 21a is provided with a stem fitting cylinder 22.
The upper front part of the notch is notched, and a flat fan-shaped bottom plate 23 is extended forward from the lower edge of the notch as shown in FIG. 2, and the lower edge is attached to the bottom plate 23 from both sides of the notch. The first side plates 24, 24 are projected to both right and left sides, and the outer tube 25 is suspended by surrounding the stem fitting tube 22 and continuing the upper end portion to the bottom plate 23 and the first side plates 24, 24. And the first side plate 24,
A C-shaped support plate 26 is provided so as to connect both ends to the outer surface of the distal end portion of the outer cylinder 24 and to surround the upper left, right, left and right sides and the rear portion of the outer cylinder. Connected at 27.

The top plate member 21b is connected to the pressing head main body 21.
a top plate 31 covering the upper surface of the stem fitting tube 32, the lower surface of the top plate 31 is fitted to the inner surface of the upper end portion of the stem fitting tube 22 described above, and the fitting tube 32 of the front notch is hung down. The second side plates 33, 33 project from the upper end to the top plate, and these second side plates are fitted to the inner surfaces of the first side plates 24, 24 described above. The second side plate is slightly shorter than the first side plate. Further, the first liquid control plate 34 is hung down from the rear top plate portion at the center between the second side plates 33, 33, and the lower end thereof is placed on the upper surface of the bottom plate 23.

The aforementioned bottom plate 23, a top plate portion above the bottom plate,
The front part is expanded in the shape of a plane fan with the left and right first and second side plates,
Further, a nozzle 36 having a nozzle hole 35 provided with a narrow gap between the bottom surface and the top surface is formed.

The second embodiment shown in FIGS. 4 and 5 will be described. This embodiment is also formed of a synthetic resin press-down head main body and a top plate member.
Is different from the push-down head main body of the first embodiment in that a rearward stepped portion 37 is provided at a middle portion of the bottom plate 23 in the front-rear direction. The top plate member 21b differs from the top plate member of the first embodiment in that the top plate member 21b does not include the first liquid control plate.

The rearward step 37 and the first liquid control plate 34 of the first embodiment together form a liquid control mechanism for expanding the viscous liquid ejected through the nozzle holes 35 in the left-right direction. Therefore, the first liquid control plate 34 of the first embodiment
May be erected from the bottom plate 23 or a plurality of them may be provided.
Therefore, it goes without saying that a plurality of rearward step portions 37 in the second embodiment may be provided.

Since the main purpose of the top plate 31 of the top plate member 21b is to function as a pressing surface of the operating member 6 and as an upper wall of the nozzle hole 35, other portions are not necessarily required, and accordingly, Outer cylinder 25 and support plate of push-down head body 21a
26 can also be removed. When the outer tube 25 and the support plate 26 are removed, the fitting tube 32 and the second side plates 33, 33 can be fitted to the outer surface of the upper end portion of the stem fitting tube 22 and the outer surface of the first side plates 24, 24. Become. Further, if liquid leakage from the nozzle hole 35 can be prevented, the first side plate and the second side plate are not fitted to each other, the nozzle hole side wall is formed by only one of the first side plate and the front portion is expanded into a plane fan shape, and What is necessary is just to form a nozzle hole in which the space between the bottom surface and the upper surface is narrowed, and make the rear part of the nozzle hole communicate with the upper part of the stem fitting cylinder 22. However, the press-down head 21 which is excellent in appearance can be easily formed by forming as shown. 6 to 8 show a third embodiment. The feature of this embodiment is that the nozzle hole 35 is formed in a fan shape whose front part is widened when viewed from the side. That is, from the upper front portion of the stem fitting cylinder 22, the front portion is expanded in a side fan shape, and the nozzle hole 35 provided with a narrow gap between the left and right side surfaces.
The nozzle 36 having the nozzle 36 communicates with the stem fitting cylinder 22 to protrude forward, and a liquid control mechanism for vertically expanding a viscous liquid ejected through the inside of the nozzle hole is provided in the nozzle hole 35. Things.

In the illustrated example, the pressing head main body 21a and the top plate member 21b, both made of synthetic resin, are formed. A first outer peripheral wall 39 is hung down through 38, and a front portion of the top wall projects downward and forward to form a bottom plate 23 of a nozzle hole to be described later. A short inward flange 40 is provided at the upper end of the stem fitting tube.
Is provided, and the short cylinder 41 having the front notch of the inward flange is raised.

The top plate member 21b has a front notch fitting tube 32 fitted to the outer surface of the short tube 41 hanging down from the center of the top plate 31 and the second outer peripheral wall 42 hanging down from the outer periphery of the top plate. 1 is fitted to the outer surface of the outer peripheral wall 39, and the front portion of the top plate 31 is projecting obliquely forward and the second outer peripheral wall portion up to its front end and the vicinity of the front end of the bottom plate 23 is elongated. As shown above
The left and right third side plates 43 are suspended from both side portions of the notch 32 with the upper end continuous with the top plate 31, and the lower end of the third side plate is connected to the bottom plate 23.
The lower end of the third side plate is further provided with an engaging plate 44 which forms a lower surface of the front end of the nozzle hole between the lower end and the lower end of the third side plate. Is connected to the upper end of the second outer peripheral wall portion below the opening. Nozzle hole 35 is bottom plate
23, an engaging plate 44, left and right third side plates 43, 43, and a top plate front portion, and a second liquid control plate for vertically dispersing a viscous liquid spouting from the nozzle hole in the center thereof. 45, 45 is installed horizontally between the left and right plates.

Also in the case of the third embodiment, the portion other than the top plate portion above the stem fitting cylinder 22 and the nozzle 36 forming the nozzle hole 35 can be removed.

In the case of the first embodiment shown in FIGS. 1 to 3 and the second embodiment shown in FIGS. 4 and 5, the pressing head 21 of the present invention is fitted to the upper end of the stem 4 and the fitting is performed. When the liquid ejecting device 1 is in the erected state, the push-down head top plate 31 may be pushed down, and the viscous liquid ejected through the stem 4 due to the high pressure in the cylinder is moved right and left by the liquid control mechanism in the nozzle hole 35. It can be spouted onto the cosmetic cotton in the state where it is expanded.

In the case of the third embodiment shown in FIGS. 6 to 8, the pressing head 21 may be pushed in while the liquid ejector 1 is lying down, so that the viscous band is formed on the cotton. Liquid can be deposited.

[0022]

According to the present invention, in the case of the first aspect of the present invention, a nozzle having a flat fan shape with a widened front portion and a narrow gap between the bottom surface and the top surface is provided. Hole 35
The nozzle 36 having a front end is communicated with the inside of the stem fitting tube from the upper front part of the stem fitting tube 22 and protrudes forward, and the nozzle hole 35 has a viscous jet that is ejected through the nozzle hole. A liquid control mechanism that expands the liquid in the left-right direction is attached, so that the viscous liquid to be ejected can be ejected in a band-like state, making it easy to attach viscous makeup liquid to makeup cotton without waste. It is.

According to the second aspect of the present invention, the press-down head is formed by a press-down head main body 21a made of synthetic resin and a top plate member 21b, and the top plate member is fitted to the press-down head main body. The nozzle hole 35 is formed, and the first liquid control plate 34 for expanding the viscous liquid to be ejected in the left-right direction is provided in the nozzle hole. In addition, there is an effect that the formation of the synthetic resin pressing head 21 having the above effect is facilitated.

According to a third aspect of the present invention, the pressing head according to the second aspect of the present invention is replaced with the first liquid control plate, and the rearward stepped portion 37 is provided.
Is provided on the bottom plate 23, the rearwardly-facing step expands the viscous liquid to the left and right, and the same effect as the second aspect of the invention can be obtained.

According to a fourth aspect of the present invention, the nozzle hole of the first aspect of the present invention is provided in such a manner that the front portion is widened in a side fan shape and the gap between the left and right side surfaces is narrowed. In this state, the viscous makeup liquid can be expanded and ejected in a strip shape, and the effect of the invention described in claim 1 can be obtained, and the usability can be improved.

According to a fifth aspect of the present invention, the pressing head according to the fourth aspect of the present invention is simply fitted with a pressing head body 21a and a top plate member 21b made of synthetic resin. Since the pressing head according to the fourth aspect of the invention can be used, the effect of the fourth aspect of the present invention can be obtained, and at the same time, it is possible to easily form the synthetic resin pressing head having the effect.

[Brief description of the drawings]

FIG. 1 is a half sectional view of a liquid ejector having a pressing head according to the present invention.

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

FIG. 3 is a perspective view of the ejector of FIG. 1;

FIG. 4 is a longitudinal sectional view of a pressing head shown in a second embodiment.

FIG. 5 is a transverse sectional view taken along the line BB in FIG. 4;

FIG. 6 is a longitudinal sectional view of a pressing head shown in a third embodiment.

FIG. 7 is a transverse sectional view taken along the line CC of FIG. 6;

FIG. 8 is a perspective view of the press-down head.

[Explanation of symbols]

 21a… Depression head body 21b… Top plate member 22… Stem fitting cylinder 35… Nozzle hole

Claims (5)

[Claims] 1. A nozzle 36 having a nozzle hole 35 whose front portion is expanded and a gap between a bottom surface and an upper surface is narrowed in a plane fan shape from the upper front portion of the stem fitting cylinder 22 having an upper surface closed. A liquid control mechanism is provided in the nozzle hole 35 for communicating with the inside of the stem fitting cylinder 22 and protruding forward, and a liquid control mechanism for expanding the viscous liquid ejected through the nozzle hole in the left-right direction. To push down the liquid ejector head. 2. A synthetic resin press-down head body in which a front end of an upper end of a stem fitting tube 22 is cut out, and a flat fan-shaped bottom plate 23 is protruded forward from a lower edge of the notch. 21a, a top plate member 21b made of a synthetic resin, which is fitted from the top plate 31 covering the upper part of the press-down head main body to the upper end of the stem fitting tube 22 to hang down the fitting tube 32 of the front notch. The bottom plate 23, a top plate portion above the bottom plate, and side plates protruding from one or both of the right and left sides of each of the bottom plate and the top plate portion, the front part is expanded into a plane fan shape. A first liquid control plate 34 for forming a nozzle hole 35 having a narrow gap between the bottom surface and the upper surface and expanding the viscous liquid spouting through the inside of the nozzle hole in the left-right direction is provided by the bottom plate 23 or the top plate. A press-down head of a liquid ejector characterized by projecting from a portion into a nozzle hole. 3. A synthetic resin made by cutting out a front portion of the upper end of the stem fitting tube 22, and expanding and projecting a fan-shaped bottom plate 23 having a rearward stepped portion 37 from the lower edge of the notch forward. From the top plate 31 covering the upper part of the press-down head main body and the press-down head main body 21a, the upper end of the stem-fitting tube 22 is fitted and the fitting tube 32 of the front notch is hung down. A top plate member 21b, the bottom plate 23, a top plate portion above the bottom plate, and side plates protruding from one or both of the left and right sides of the bottom plate and the top plate portion. A press-down head of a liquid ejector, characterized in that a nozzle hole 35 is formed in which a gap between the bottom surface and the top surface is narrowed. 4. A nozzle 36 having a nozzle hole 35 provided with a narrowed gap between left and right side surfaces while expanding the front portion into a side fan shape from an upper front portion of the stem fitting tube 22. twenty two
And a liquid control mechanism for vertically expanding a viscous liquid spouting through the nozzle hole is provided in the nozzle hole 35. Down head. 5. A press-down head main body 21a made of a synthetic resin, in which a front end of an upper end of the stem fitting tube 22 is cut out and a bottom plate 23 projects from a lower edge of the cut-out to a lower front. Synthetic resin that is fitted from the top plate 31 covering the upper part of the head main body to the upper end of the stem fitting tube to hang down the fitting tube 32 of the front notch and to project the top plate portion above the bottom plate obliquely forward. A bottom plate 23, a top plate portion above the bottom plate, and side plates protruding from one or both of the left and right sides of the bottom plate and the top plate portion. A second liquid control plate 45 for forming a nozzle hole 35 having a front portion widened and a narrow gap between the left and right plates formed therein, and for vertically expanding a viscous liquid ejected through the nozzle hole, A push-down head of a liquid ejector, wherein the push-down head is provided between the left and right side plates.