JPS5854863B2 - Nozzle device for pressure-filled foam products - Google Patents

Description

[Detailed description of the invention] The present invention relates to a spout apparatus for pressure-filled foam products.

Recently, pressurized pakag
ing.

Foamed products such as so-called aerosol products have seen extremely diverse developments in the field of cosmetics, and new products such as so-called pack agents have been developed. , using a liquefied gas propellant with a relatively high boiling point, it is initially ejected in almost liquid form, and when the ejected liquid adheres to the human body,
Slow-foaming products have been developed in which the propellant vaporizes and forms a foam only when warmed by body heat.

(Japanese Patent Application No. 55-155811) Conventionally, ordinary aerosol valves for spraying have been used also for pressure-filled foam products.

In this conventional valve, the valve was closed by the close contact between the horizontal hole of the stem and the valve gasket, so there was a space between the closing part and the nozzle part, and with foamed products, the contents could be stored in this part after one use. It has the disadvantage that it remains behind, causing deterioration and odor, and causing swelling.

In order to overcome this drawback, mechanisms for closing the outermost orifice have been developed, but none have yet been conclusively successful.

In any case, it was not the development of a replacement for the conventional aerosol valve itself that attempted to close the single liter nozzle.

Since the liquefied gas propellant used in such slow-foaming products has a high boiling point, that is, a low vapor pressure, a strong closing force as in conventional aerosol valves for spraying is not required.

Focusing on this point, the present inventor developed a valve mechanism that is completely different from the conventional aerosol valve mechanism, that is, it is composed of a conventional housing, stem, gear socket, and spring, and is fixed to a mounting cup. Instead, we developed a nozzle device with a valve mechanism inside the button (actuator) itself.

According to the present invention, there is provided a valve body comprising a substantially cylindrical body fitted to the opening edge of a pressurized filling container and a spouting beak projecting approximately horizontally, the valve body penetrating the inside of the spouting beak. a through-hole, the through-hole communicates with the suction tube flow path at a lower surface in the approximate center of the body; an upper cavity is provided in the upper part of the body, which communicates with the through-hole; The tip of the spouting beak of the cavity is a small spout; the stopper is inserted into the through cavity, has a slit cut in the vertical direction, has a pointed tip, and is inserted into the through cavity by an elastic means. an actuator that can penetrate into and come into close contact with the spout and retreat to open the spout; an actuator housed in the upper cavity, the leg portion of which protrudes downwardly penetrating and protruding into the slit of the stopper; having an inclined surface that engages the upper rear edge of the;
The actuator is held in the upper cavity by an elastic diaphragm tensioned to seal the upper cavity; when the actuator is pushed down, the inclined surface presses against the upper rear edge of the slit and the upper cavity is closed. A spout device for a pressure-filled foam product is provided, which is configured to retract a stopper and squirt the contents of a pressure-filled container from the spout.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.

As shown in FIG. 1, the mounting cup 1 of the pressurized filling container has an opening edge 2 with a circular cross section formed at the upper end and has a button, and a valve body 3 of the nozzle device is fitted into the opening edge 2. has been done.

The valve body 3Ii is composed of a cylindrical body 4 whose lower portion is a large diameter portion 4a, and a spout beak 5 that projects horizontally from the middle of the body 4.

The upper and lower parts of the body part 4 have upper cavities 6, respectively.
A lower cavity 7 is formed, and a fluid passage 8 extending inwardly of the body 4 opens into the lower cavity 7 .

The fluid passage 8 consists of an upper button, large diameter holes 9 and 10 at the bottom, and a small diameter hole 11 that communicates them. A suction pipe 12 is inserted into the lower large diameter hole 10, and the suction pipe 12 is crimped and fixed by an annular projection 13 provided around the inner surface of the lower large-diameter hole 10.

A through-hole 14 is formed inside the spout beak 5, and the through-hole 14 communicates with the fluid passage 8 at the lower surface at the approximate center of the body, and is connected to a through-hole 15 carved in the upper surface. It communicates with the upper cavity 6 through the spout 5, and a small-diameter spout 16 is formed at the tip of the spout beak 5.

A stopper 17 is inserted into the through-hole 14 and clicked, and a spring 18 is tensioned between the rear end of the stopper 17 and the end of the through-hole 14, and has a pointed tip. It penetrates into the nozzle 16 and comes into close contact with the spring 18, and opens the nozzle 16 when it retreats against the urging force of the spring 18. , vertical slits 19 are cut out.

(In this embodiment, the valve body is molded with the rear end of the stopper open, and after the stopper is inserted, the opening is closed. However, the valve body is molded with the spout side open, and after the stopper is inserted, the nozzle The pieces may be fitted and fixed.

) On the other hand, an actuator 23 is housed in the upper cavity 6 of the body part 4 and is pressed, and the actuator 23 is in contact with an elastic diaphragm 21 which is stretched and fixed so as to seal the upper cavity 6 of the body part 4. There is.

An actuator upper piece 22 is placed above this diaphragm, and its flange surface is locked by a fixing piece 24 that fixes the diaphragm fitted into the upper cavity 6.

The actuator 23 has a leg portion 26 projecting downward from a base portion 25 that contacts the diaphragm 21, and the leg portion 26 has a rectangular cross section that is long in the axial direction of the through hole 14. 6 and the through hole 14, and a slit 19 cut in the stopper 17, and protrude into the upper large diameter hole 9 of the fluid passage 8, and the upper rear edge of the slit 19 An inclined surface 27 is formed which is inclined forwardly and downwardly and engages with.

In this embodiment, the actuator mechanism 20 consists of an actuator 23 and an actuator upper piece 22, and the upper piece is locked by a fixing piece 24, but the upper piece may not be provided.

As mentioned above, the valve body 3 is fitted and fixed to the opening edge 2 of the pressurized filling container through the groove 28 carved on the outer periphery of the large diameter portion 4a of the body portion 4. The size is one aspect,
As shown in FIG. 2, it may be fitted and fixed to the opening edge 2 by a groove 29 carved on the inner periphery of the lower cavity γ,
Any suitable fixing means may be used.

With this structure, the stopper 17 is biased by the spring 18, and the tip of the stopper 17 closely contacts the nozzle 16 to close it. The actuator upper piece 22 is pressed upward by the inclined surface of the slit, and the flange surface of the actuator upper piece 22 is locked to the fixing piece 24 .

The operation of this nozzle device is as shown in FIG. 2, when the actuator upper piece 22 is pressed with a finger, the diaphragm 21
is bent downward and the actuator 23 descends, so
The stopper 17 retreats by being suppressed by the rearward component σ of the force received when the upper rear edge of the slit 19 engages with the inclined surface 27 of the leg portion 26 of the descending actuator 23.
Since the tip is removed from the nozzle 16, the nozzle 16 is opened and the contents of the pressurized filling container are jetted out from the nozzle 16.

When the actuator mechanism 20 stops being compressed, the stopper 17 moves forward due to the restoring force of the spring 18.
The nozzle 16 is closed at the tip of the stopper 17.

At the same time, the actuator 23 is pressed by the upward component of the force received from the upper rear end of the slit 19 of the advancing stopper 17 on the inclined surface 27 of the leg 26 of the actuator 23, causing the steam of the contents of the pressurized filling container to rise. Pressed by the force, it rises and returns to its original position.

As explained above, according to the present invention, since the fluid passage of the pressurized filling container is closed at the outermost nozzle,
After being ejected, the contents are prevented from remaining in the fluid passage after the closed part, causing deterioration and odor, and sluggishness, as in the conventional case.

The device of the present invention can be implemented in various other ways.

For example, the actuator upper piece may be omitted, and the angle that the through hole 14 makes with the fluid passage 8 of the suction tube is not limited to a right angle, but may be oblique.

Further, since the device of the present invention can be easily manufactured by a person skilled in the art using known materials and methods, there is no need to explain its manufacture.

[Brief explanation of the drawing]

FIG. 1 is a side sectional view showing one embodiment of the present invention when it is not in operation, and FIG. 2 is a side sectional view showing another embodiment of the present invention when it is in operation. 1...Mounting cup, 2...
Opening edge, 3... Valve body, 4... Body part, 5
...Blowout beak, 6... Upper cavity, 8...
...Fluid passage, 9... Upper large diameter hole, 10...
...Lower large diameter hole, 12...Suction pipe, 13.
... Annular process, 14 ... Penetration cavity, 15.
...Through hole, 16...Spout, 17...
... Stopper, 18 ... Suffling, 19.
... Stopper slit, 20 ... Actuator mechanism, 21 ... Diaphragm, 2
2... Actuator upper piece, 23...
・Actuator, 24... Fixed piece, 26...
... Leg part, 27 ... Inclined surface, 28, 29.
...concave groove.

Claims (1)

[Scope of Claims] 1. A valve body consisting of a substantially cylindrical body fitted to the opening edge of a pressurized filling container and a spouting beak protruding almost horizontally, the valve body being capable of discharging white matter from the spouting beak. a through-hole that passes through the body, the through-hole communicates with the suction tube flow path at a lower surface in the approximate center of the body, and an upper cavity is provided at the upper part of the body and communicates with the through-hole; The dispensing beak tip of the through-hole is a small nozzle; and the stopper is inserted into the through-hole and has a slit cut in the vertical direction, has a pointed tip, and has an elastic means. an actuator that can penetrate into and come into close contact with the spout and retreat to open the spout; an actuator that is housed in the upper cavity, the leg of which projects downwardly penetrates and projects into the slit of the stopper; an elastic diaphragm stretched to hold the actuator in the upper cavity and seal the upper cavity; when the actuator is pushed down; . A spout device for a pressure-filled foamed product, wherein the inclined surface presses the upper rear edge of the slit to retract the stopper and eject the contents of the pressure-filled container from the spout. 2. The spout device according to claim 1,
with the top piece of the actuator positioned and locked on the outside of the diaphragm.