JPH07330051A - Actuator for aerosol container - Google Patents

Abstract

PURPOSE:To simplify the structure, and improve the reliability by a method wherein accompanying with the depressing of a nozzle surrounding apparatus, a lead-out tube is lowered by the elastic base end of a nozzle body, and at the same time, the elastic base end is curved upward to make the leading end of the nozzle body retreat from a discharge hole. CONSTITUTION:When a nozzle-surrounding apparatus 12 is depressed by resisting to a coil spring 19, a plate spring 16e of a nozzle body 16 depresses a lead-out tube 17 by resisting to a coil spring 28. For this reason, a communication hole 25 of a lead-out tube main body 17a communicates with a liquid-leading tube 26 in a container main body 11, under a sealing member 23. When the nozzle surrounding apparatus 12 is depressed further, the plate spring 16e curves upward, and a needle-form leading end 15 of the nozzle body 16 retreats from a small hole 13. As the result, a liquid which is drawn in the container main body 11 passes through the liquid-leading tube 26, communication hole 25, lead- out tube main body 17a, actuating rod 17b, cylindrical hollow part 12c, liquid path 16b, guide groove 21, cylindrical chamber 22, and a spraying angle-setting part 20, and is jetted to the outside at a specified angle from the small hole 13.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an aerosol in which a nozzle body is mounted in a hollow inside of a cylindrical nozzle cover having a hole at the tip and an opening at the base end so that the nozzle body can advance and retract with respect to the small hole. Regarding actuators.

[0002]

2. Description of the Related Art Conventionally, various types of aerosol spray nozzles have been known. For example, in Japanese Examined Patent Publication No. 61-48986, a nozzle cover having a tubular portion having an opening and a small hole, a nozzle body fitted in the tubular portion of the nozzle cover with a gap, and a nozzle body communicated with the gap. There is disclosed a structure including a flow passage, in which a spray portion is integrally formed in a nozzle body portion of a portion facing a small hole provided in the nozzle cover. In addition, JP-A-4-12
In No. 8168, there is a tapered spray angle setting portion on the inner surface of the tip portion of the nozzle cover, which is upstream of the discharge hole and which communicates with the discharge hole and spreads at a predetermined angle, and on the upstream side of the spray angle setting portion. A guide groove whose base end communicates with the inside of the container body as appropriate, and a cylindrical chamber which communicates the spray angle setting portion with the guide groove, and the nozzle body is pressed by pressing the nozzle envelope downward. Through the elastic base end of the nozzle, the actuating rod inserted through the introduction pipe is lowered downward, and the elastic base end is bent upward so that the elastic base end can be restored, whereby the tip end of the nozzle body is discharged. A configuration is known in which the hole is retracted from the hole. However, this structure is not always satisfactory because the operating rod moves up and down and the structure becomes complicated.

[0003]

SUMMARY OF THE INVENTION The present invention was devised in view of the above circumstances, and its main problem is for an aerosol in which a tubular lead-out tube is slid to discharge the contents. The purpose is to provide an actuator.

[0004]

SUMMARY OF THE INVENTION In order to solve the above problems, the present invention provides a nozzle envelope provided at the upper end of a container body so as to be vertically movable, and a front portion on one side of the nozzle envelope. A cylindrical nozzle cover that is provided so as to project and has a discharge hole on the tip end surface and an opening at the base end, and is arranged in the hollow of the nozzle cover, and the tip end part is attached to the discharge hole so that it can move forward and backward. And a nozzle body that has an elastic base end that has the flexibility to bend vertically and is built in the hollow of the nozzle envelope, and the upper end of the opening that is attached to the mouth of the container main body to draw out the contents to the outside. An aerosol actuator comprising a cylindrical lead-out tube communicating with the inside of the hollow of the nozzle cover, wherein a nozzle wall is provided with a partition wall for partitioning the hollow section for housing the nozzle body, and the partition wall is vertically communicated with the partition wall. To form a hole to The guide tube is slidably inserted through the base member, and the nozzle envelope is pressed downward to lower the guide tube downward via the elastic base end of the nozzle body. A technical measure is taken such that the elastic base end portion is curved upward in a recoverable manner, whereby the tip end portion is retracted from the discharge hole, and the content is sprayed to the outside through the outlet pipe.

[0005]

When the nozzle envelope is pressed downward, the base end of the nozzle body comes into contact with the upper end of the lead-out pipe made of the tubular rod, whereby the lead-out pipe descends downward and the lead-out pipe and the container. At the same time, the elastic base end portion of the nozzle body bends upward against the elasticity while communicating with the inside of the main body, whereby the tip end portion of the nozzle body is retracted from the discharge hole and introduced through the outlet pipe. The contents can be sprayed or discharged to the outside through the discharge holes.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment in which the aerosol actuator of the present invention is used in a spraying device will be described below with reference to the drawings. FIG. 1 shows a first embodiment of an aerosol actuator, which has a structure in which a liquid pressurized and filled in a container body 11 is pushed by a nozzle envelope 12 to discharge the liquid as an aerosol. .

This aerosol actuator is mainly provided on the upper end of the container body 11 so as to be movable up and down, and on the one side of the nozzle envelope 12, the front portion is projected. A cylindrical nozzle cover 14 having a small hole 13 at the tip end surface and an opening at the base end, and a needle-like tip portion 15 which is arranged in the hollow of the nozzle cover 14 and is attached to the small hole 13 so as to be movable back and forth. Nozzle body 16
And a lead-out pipe 17 which is attached to the mouth of the container body 11 to draw the content liquid to the outside and has an opening upper end portion made of a cylindrical rod that communicates with the inside of the hollow of the nozzle cover 14.

More specifically, the nozzle envelope 12 is
The lower surface has a hollow portion 12a, and the hollow portion 12a can move up and down in the hollow portion 11a provided at the upper end of the container body 11. A coil spring 19 is interposed between the hollow portion 12a of the nozzle envelope 12 and the upper end seal member 18 of the container body 11, and the elastic force of the coil spring 19 always directs the nozzle envelope 12 upward. Are urging.

A step portion 1 is formed on the outer periphery of the lower end of the hollow portion 12a.
2b is formed and acts as a stopper that locks with the opening edge 11b of the hollow portion 11a of the container body 11. The cylindrical hollow portion 12 is also provided in the upper middle portion of the nozzle envelope 12.
c is formed, and the base end portion of the nozzle cover 14 is detachably fixed thereto by, for example, a screw or the like.
Therefore, the nozzle cover 14 can be appropriately replaced with one having a required spray angle.

As described above, the nozzle cover 14 has the small hole 13 on the tip end surface thereof, and the tapered spray angle setting portion 20 communicating with the small hole 13 and expanding at a predetermined angle is formed on the upstream side thereof. The cylindrical chamber 2 is provided on the upstream side of the spray angle setting unit 20.
2 is formed, and a guide groove 21 is formed on the upstream side of the cylindrical chamber 22. The taper angle of the spray angle setting unit 20 is appropriately determined as needed. Further, the number and shape of the guide grooves 21 can be arbitrarily selected.

The nozzle body 16 has a small diameter portion 16a having a needle-like pointed tip portion, and a large diameter portion 1 having a liquid passage 16b communicating with the guide groove 21 on the peripheral wall surface at the rear thereof.
6d, and a leaf spring 16e, which is thickest in the middle portion and gradually thinned in the front and rear portions, is connected to the rear side thereof. The upper end of the lead-out pipe 17 appropriately contacts the lower surface of the thickest intermediate portion of the leaf spring 16e. In addition,
The rearmost end 16f of the nozzle body 16 is fixed to the nozzle envelope 12.

The nozzle envelope 12 has a partition wall 12d that divides the interior into upper and lower parts, and a hole 12e that opens vertically is formed in the center of the partition wall 12d. The hole 1
The lead-out pipe 17 is vertically slidably inserted in 2e, and a packing 24 as a seal member is interposed between the lead-out pipe 17 and the hole 12e.

The lead-out pipe 17 is made of a cylindrical rod,
In this embodiment, the lower end is the mouth 11 of the upper end of the container body 11.
The lead-out pipe main body 17a that is airtightly inserted into the c via the seal member 23, the base end portion is coaxially inserted into the upper end portion of the lead-out pipe main body 17a, and the upper end portion is outside the nozzle through the packing 24. It is composed of an operating rod 17b that is airtightly drawn out into a cylindrical hollow portion 12c of the envelope 12.

The operating rod 17b has a lower portion formed in a connecting cylindrical portion that widens to a large diameter so that the upper end of the lead-out pipe body 17a can be fitted therein. By dividing the lead-out pipe into two parts in this manner, each of them is made of a different material, or one (for example, the operating rod 17b) is made a member having a common size, and the other (the lead-out pipe main body 17a) is adjusted in length according to various containers. It can be easily changed.

An appropriate number of side holes 25 are provided at the lower end of the lead-out pipe body 17a and open to the side surface. A cutout opening 17c is also formed at the upper end of the operating rod 17b so that the liquid passing through the outlet pipe 17 can be discharged to the cylindrical hollow portion 12c. A coil spring 28 is interposed between the lower end of the lead-out pipe body 17a and the bottom surface of a spring receiver 27 provided in communication with the upper end of the liquid guide pipe 26 inside the container body 11. The main body 17a is always urged upward.

Next, the operation of the aerosol actuator having such a structure will be described. First, when the nozzle envelope 12 is pressed downward against the elastic force of the coil spring 19, the upper end of the lead-out pipe 17 comes into contact with the middle thick portion of the leaf spring 16e of the nozzle body 16, and the leaf spring 16e. By this, the lead-out pipe 17 is pushed down against the elastic force of the coil spring 28, and the communication hole 25 at the lower end of the lead-out pipe body 17a is below the seal member 23 and the container body 1
1 communicates with the liquid guide tube 26 inside.

Further, by pushing the nozzle envelope 12 downward, the leaf spring 16e of the nozzle body 16 is bent upward by the elastic force, and the needle-like tip of the nozzle body 16 that has blocked the small hole 13 up to that point. The part 15 moves backward from the small hole 13 (see FIG. 2). As a result, the liquid sucked inside the container body 11 is guided by the liquid guiding tube 26, the side hole 25, and the outlet tube body 1.
7a, operating rod 17b, hollow cylindrical portion 12c, liquid passage 16
After passing through b, the guide groove 21, the cylindrical chamber 22, and the spray angle setting unit 20, the small holes 13 are ejected as an aerosol at a predetermined angle to the outside.

When the pressure applied to the nozzle envelope 12 is released, the small hole 13 is closed again by the needle-like tip portion 15 of the nozzle body 16 by the elastic force of the leaf spring 16e, and the elastic force of the coil spring 19 causes the outside of the nozzle to exit. The envelope 12 returns to the initial position, and at the same time, the outlet pipe 17 is restored to the initial position and the side hole 25 is hermetically sealed by the seal member 23.

FIG. 3 shows another embodiment of the present invention.
In the embodiment shown in FIGS. 1 and 2, the lead-out pipe 17 is made up of the lead-out pipe main body 17a and the operating rod 17b as a single member. Therefore, the same parts as those in FIG. 1 are designated by the same reference numerals and the description thereof will be omitted. The operation and effect of each member are substantially the same as those shown in FIG. 1, and the description thereof will be omitted. Further, in the present invention, the contents such as liquid to be filled in the container body are pre-pressurized and sealed, or the contents are pressurized by pumping the contents to inject or spray. The configuration does not matter.

[0020]

As described in detail above, according to the present invention,
It is possible to slide the tubular lead-out pipe to guide the contents such as liquid through the inside of the lead-out pipe to the hollow portion in which the nozzle body is housed. Further, the structure is simple and the reliability is excellent.

[Brief description of drawings]

FIG. 1 is a sectional view mainly showing an aerosol actuator according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view showing a state during injection.

FIG. 3 is a cross-sectional view showing an aerosol actuator according to another embodiment of the present invention.

[Explanation of symbols]

 11 Container Main Body 12 Nozzle Enclosure 12a Hollow Part 12d Partition Wall 12e Hole 13 Small Hole 14 Nozzle Cover 16 Nozzle Body 17 Outlet Pipe 18 Sealing Member 19 Coil Spring 24 Packing 27 Spring Receptor 28 Coil Spring

Claims (4)

[Claims] 1. A nozzle envelope which is provided at an upper end of a container body so as to be movable up and down, and a discharge hole is provided at a front end face of the nozzle envelope so that a front portion thereof projects. A cylindrical nozzle cover having a base end opened, and an elastic base end portion which is disposed in the hollow of the nozzle cover and has a tip end portion that can be moved forward and backward with respect to the discharge hole and has an elasticity that bends up and down. A nozzle body that is provided and built in the hollow of the nozzle envelope, and a cylindrical lead-out that is attached to the mouth of the container body to draw the contents out and the upper end of the opening communicates with the hollow of the nozzle cover. In an aerosol actuator comprising a pipe, a partition wall for partitioning a hollow portion for housing a nozzle body is provided in a nozzle envelope, a hole communicating vertically is formed in the partition wall, and the partition wall is led through a sealing member. The pipe is slidably inserted By pressing the nozzle envelope downward, the lead-out tube is lowered through the elastic base end portion of the nozzle body, and the elastic base end portion is curved upward so that the elastic base end portion can be restored. An aerosol actuator in which the portion is retracted from the discharge hole and the content is sprayed to the outside through the outlet pipe. 2. A lead-out tube main body, the lower end of which is hermetically fitted into the mouth of the container body via a seal member, and the base end of which is coaxially fitted to the upper end of the lead-out tube main body. The actuator for an aerosol according to claim 1, wherein the actuator is inserted, and an upper end of the actuating rod is led out to a hollow portion of the nozzle envelope. 3. The aerosol actuator according to claim 1, wherein the lead-out tube is made of one tubular member. 4. A discharge hole set as a small hole, a tip of a needle-shaped nozzle body, and an inner surface of the tip of the nozzle cover, which is upstream of the discharge hole and communicates therewith, at a predetermined angle. The taper-shaped spray angle setting part that expands with the guide angle, the guide groove on the upstream side of the spray angle setting part, the base end of which appropriately communicates with the inside of the container body, and the spray angle setting part and the guide groove that communicate with each other. 4. The aerosol actuator according to claim 1, 2 or 3, further comprising: