JP2003334473A - Jetting button for aerosol container - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a jetting button for an aerosol container which can widen the jetting pattern evenly in the entire circumference without relying on a structural means. <P>SOLUTION: The jetting button 10 is so constructed as to jet the content by communicating a flow path part 11 fitted in a valve stem 3 in the base end part with a jetting port 21 formed in the front part by pushing-down operation and in the button, the surface 15a of a piezoelectric element 15 kept in a pressurized state is exposed to the flow path part. Accordingly, corresponding to the stress applied to the crystal of the piezoelectric element 15, polarized electric charge is generated in the surface 15a and an electric field is generated in the liquid-phase content passing through to electrically charge the contents and thus the jetting pattern is widened in the entire circumference owing to the repulsive force of charge electric particles with the same polarity in the atomized contents in a gas. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flow path portion, which is fitted to a valve stem at a base end portion, and communicates with an injection port provided on a front surface of the valve unit. The present invention relates to an injection button for an aerosol container, which is adapted to eject.

[0002]

2. Description of the Related Art The spray pattern of mist-like contents sprayed from a spray port is wider as the diameter of the spray port is larger, and the spray pattern is wider even if the depth width is extremely narrow. At that time, the variation of the injection pattern in the circumferential direction affects the injection range as the injection pattern becomes wider, but in order to make the injection pattern uniform, consider the structure near the injection port exclusively. There is.

[0003]

DISCLOSURE OF THE INVENTION The present invention focuses on the mutual repulsive action of charged electric charges, and is capable of uniformly spreading the spray pattern over the entire circumference without depending on structural means. Intended to provide a button.

[0004]

In order to achieve this object, the present invention provides, according to claim 1, a flow passage portion fitted to a valve stem at a base end portion on an injection port provided on a front portion. In the injection button for the aerosol container, which is adapted to eject the content from the ejection port by the pressing operation by communicating, the piezoelectric element is charged so that the atomized content is charged by the polarization charge generated on the surface of the piezoelectric element. The flow path section is provided with its surface exposed inside and under pressure, or according to claim 2, the atomized contents are charged with a polarization charge generated on the surface of the piezoelectric element, A feature of the present invention is that a piezoelectric element, which is pressed by an operating force during a pressing operation, is provided in the flow path portion with its surface exposed inside.

The piezoelectric element is constantly pressed according to claim 1 or by being pressed during the pressing operation according to claim 2,
A polarization charge is generated on the surface according to the stress applied to the crystal, and an electric field is generated in the passing liquid content to charge the content.
As a result, repulsive force acts on the charged electric charges of the same polarity in the atomized contents in the jetted air to widen the jetting range over the entire circumference.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION An injection button for an aerosol container according to an example of an embodiment of the present invention will be described based on FIG. On the head of the metal aerosol container 1, a metal mounting cup 2 having a valve mechanism inside and protruding a valve stem 3 in an upwardly biased state is mounted.

The injection button 10 has a disc-shaped injection hole member 20 having an injection hole 21 and a plate-like engaging piece 22 in which a cylindrical portion behind the injection hole member 20 is separated into a plurality of pieces, so that the inside diameter is changed in two steps. A cylindrical fitting groove 13 is formed in the front portion, and further, a longitudinal passage portion 11 fitted to the valve stem 3 at the base end portion and a lateral passage portion 11a communicating with the injection port 21 are formed inside. ing.

A lateral flow passage portion 11a, which is continuous behind the fitting groove 13, is formed as a housing portion for the annular piezoelectric element 15,
The coil spring 16 is seated on the back surface 11b of the lateral flow passage portion 11a having a smaller inner diameter. As a result, the engaging piece 22 is fitted into the fitting groove 13, and the coil spring 16 is compressed at the position where the convex portion 23 is fitted into the concave portion 14 formed in the fitting groove 13 to constantly pressurize the piezoelectric element 15. It In this state, since the inner diameter of the piezoelectric element 15 corresponds to the inner diameter of the engaging piece 22, the surface 15a, which is the inner peripheral surface of the piezoelectric element 15, coincides with the inner peripheral surface of the engaging piece 22.

On the outer periphery which is the back surface of the piezoelectric element 15, an electric conductor 17, which is an annular copper plate embedded in the fitting groove 13 by integral molding, opposes with a gap, and the lateral flow passage portion 11a.
An L-shaped electric conductor 18 occupying the center position of the flow path inside the engaging piece 22 is attached to the. From the electric conductors 17 and 18, lead wires 19a and 19b embedded in the injection button 10 by integral molding are led out and connected to a common lead wire 19, and a coil-shaped lead wire 19c is connected to a base end thereof. It is connected to the mounting cup 2. This allows
The conductors 17 and 18 are designed to be grounded through the aerosol container 1 and the user's body.

The operation of the injection button 10 thus constructed is as follows. When the piezoelectric element 15 is pressed in the front-rear direction by the nozzle member 20, polarization charges of opposite polarities are constantly generated on the front surface 15a and the back surface, which is the outer peripheral surface, corresponding to the crystal structure.

When the injection button 10 is pushed down, the liquid content in which the solid or liquid is dispersed in the propellant is discharged from the valve stem 3 and passes through the flow passages inside the flow passage portions 11 and 11a. When the surface 15a is charged with, for example, + when flowing into the flow path inside the insertion piece 22 serving as a flow path portion, the content is charged with − and the + charge escapes to the ground. As a result, the mist-like contents ejected from the ejection port 21 in an ejection pattern having an angle corresponding to the structure in the vicinity thereof are subjected to a repulsive force in various directions between electric charges of the same polarity, so that the ejection pattern is spread all around. And the resulting homogenization effect. In particular, depending on the contents, the effect of negative ions can be expected.

2 and 3 show an injection button for an aerosol container according to another embodiment. This injection button
It is formed by a button portion 30 and an annular base portion 40 attached to the head portion of the aerosol container 1 by the winding tightening portion 2b and attached to the mounting cup 2 for protruding the valve stem 3 from the boss portion 2a. On the front part of the button part 30,
A fitting groove 33 into which a cylindrical engaging portion 47 is fitted behind a disc-shaped nozzle member 46 having an injection port 45 is formed, and a longitudinal flow path portion 31 and a fitting portion which are fitted to the valve stem 3 at the base end are further formed therein. A lateral flow path portion 31a communicating with the groove 33 with the same inner diameter is formed.

As shown in FIG.
As shown in, the plate-shaped connecting portions 37 are formed on both sides toward the front, and the button portion 30 is swingably connected to the base portion 40 through the integral hinge portion 41 at the gap 49. On the opposite side of the upper surface of the button part 30 from the fitting groove 33, a lever part 34 is projected rearward. Further, a mounting piece 36 on which the piezoelectric element 35 is seated is provided between the connecting portions 37 on both sides so as to project toward the button portion 30 side via the integral hinge portion 41, and the tip end thereof has a mounting cap 2 on the back surface. Leaf spring portion 3 that abuts the boss portion 2a of the
6a is provided below. The mounting piece 36 is separated from the button portion 30 by the slit 36b.

A piezoelectric element 35 is provided on the front surface of the button portion 30.
A storage part 39 for storing the
The rear surface and both side surfaces are joined to the storage portion 39. A cutout portion 47 a that exposes the surface 35 a of the piezoelectric element 35 is formed on the lower peripheral surface portion of the cylindrical engagement portion 47 of the nozzle member 46. The front surface 35a has an engaging portion 47 that serves as a lateral flow passage portion.
It is formed in an arc shape corresponding to the cross-sectional shape of the flow path 48 inside.

When the lever portion 34 is pushed down, the valve stem 3 is lowered, and the piezoelectric element 35 is driven downward by the button portion 30. At this time, the back surface 35 of the piezoelectric element 35 is driven.
b is pressed by the interposition of the leaf spring portion 36a. Further, although the required operation force of the button portion 30 is increased by the interposition of the leaf spring portion, it can be easily operated by the lever operation type. As a result, when the liquid content discharged from the valve stem 3 flows into the injection port member 46, the surface 35a of the piezoelectric element 35 is charged by the electric charges generated by stress polarization in the flow path 48, and repulsive forces are exerted on each other. And is ejected in a mist form from the ejection port 45.

In order to increase the charging efficiency, an electric conductor having an arcuate cross section is provided in the region of the cylindrical engaging portion 47 of the nozzle member 46 facing the surface 35a of the piezoelectric element 35 in the same manner as in the above embodiment. Join and attach the conductor to mounting cup 2
It is also conceivable to connect to the boss portion 2a. Further, by charging the back surface of the piezoelectric element 35 with a plate-shaped conductor that is charged with a polarity opposite to that of the back surface of the piezoelectric element 35 by embedding them with a gap therebetween, the charging efficiency can be further increased.

[0017]

According to the present invention, the injected content is charged by the piezoelectric element in the polarized state, so that a repulsive force is generated in the sprayed atomized content, and the injection pattern is widened to the entire circumference. Is evened out. It is also possible to have a negative ion effect.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of an injection button for an aerosol container according to an embodiment of the present invention when it is attached to an aerosol container.

FIG. 2 is a sectional view of an injection button for an aerosol container according to another embodiment.

FIG. 3 is a front view of the injection button.

[Explanation of symbols]

1 aerosol container 2 mounting caps 3 valve stem 10 injection button 11a, 31a Lateral flow path section 13, 33 Fitting groove 15, 35 Piezoelectric element 20, 46 nozzle member 21, 45 injection port 22 Engagement piece 30 buttons 36 Placement piece 36a Leaf spring part 40 base 41 Integral hinge

Claims (4)

[Claims] 1. A flow path portion, which is fitted to a valve stem at a base end portion, communicates with an injection port provided in a front portion,
In an injection button for an aerosol container, which is adapted to eject the content from an ejection port by a pressing operation, in order to charge the ejected atomized content with a polarization charge generated on the surface of the piezoelectric element, the piezoelectric element, An injection button for an aerosol container, characterized in that the surface is exposed to the inside of the flow path portion and is pressurized. 2. A flow path portion fitted to a valve stem at a base end portion communicates with an injection port provided at a front portion,
In the injection button for the aerosol container, which is designed to eject the content from the ejection port by the pressing operation, the depressing operation is performed so that the ejected atomized atomized content is charged by the polarization charge generated on the surface of the piezoelectric element. An injection button for an aerosol container, characterized in that the piezoelectric element, which is pressed by the operating force at the time, is provided in the flow path portion with the surface exposed inside. 3. A fitting groove is formed in a front surface portion into which a nozzle member having a nozzle is fitted, and the fitting groove is continuous behind the fitting groove so that the piezoelectric element is pressed by the fitting of the nozzle member. The injection button for an aerosol container according to claim 1, wherein the piezoelectric element is provided in a flow path portion. 4. An injection button, a button portion having a flow passage portion fitted to a valve stem, and an annular base portion attached to a head portion of an aerosol container and attached to a mounting cap for projecting the valve stem. The button portion is swingably connected to the base portion at a position below the injection port via an integral hinge portion, and the back surface of the piezoelectric element housed in the button portion is seated. The ejection piece for an aerosol container according to claim 2, wherein the piece is provided so as to project from the base portion, and a leaf spring portion whose tip is in contact with the mounting cap side is formed on the back surface of the placing piece. button.