JPH0632858Y2 - Tilting aerosol injection valve - Google Patents

Description

[Detailed Description of the Invention] (Object of the Invention) The present invention relates to an aerosol injection valve that performs open valve injection by laterally pressing a push button with an injection port. It has a simple structure and is suitable for mass production. Its purpose is to provide an injection valve.

(Structure of the Invention) Hereinafter, the invention will be described with reference to the illustrated embodiment. Reference numeral 1 is a stem formed of a soft elastic cylinder penetrating an axial hole 11 and having a collar 12
Overhangs at the base. The brim 12 is shown in FIG. 1 or 5.
As can be seen from the figure, it can be tightly engaged with the back surface of the mountain cap 3 of the aerosol container. Stem 1
A groove 13 is formed on the lower peripheral surface of the groove 1.
3 ends at the top of brim 12.

Reference numeral 2 denotes a push button, which is closely attached to the head of the stem 1 like the push button for the most common type of conventional aerosol injection container. A push rod 22 is provided on the push button 2 vertically from a top wall 23. The stem 22 has a stem hole 1.
A valve body portion 21 that is in close contact with the wall surface of No. 1 is formed. The push button 2 is also provided with a passage 25 extending from the valve body portion 21 to the injection port 24.

The present invention is constructed as described above. According to the first embodiment shown in FIGS. 1 to 4, the push button 2
The protruding rod 22 hanging from the top wall 23 of the push button 2 is molded as a member that can be separated from the main body of the push button 2, and the push button 2 is fixed by being fitted and fixed in a concave hole formed from the bottom of the main body of the push button 2. Are formed. This stick 2
2 has a thin mandrel 22a, and a nail head-shaped valve body portion 21 projects from its lower end and is provided in contact with the valve body portion 21 as is apparent from FIGS. 3 and 4. Four vertically long flange portions 22b project above the ring groove 26. And these four long brim portions 22b
The upper half has a large diameter and the lower half has a small diameter. The upper half is fitted and fixed to the main body of the push button 2 described above, and the lower half is tightly fitted in the shaft hole 11 of the stem 1. It is fitted. Further, according to this embodiment, the injection port 24 is bored in the nozzle body 24a fitted on the front surface of the main body of the push button 2, and the vertical groove 22c formed between the long rib portions 22b is formed. The passage 25 in the invention is formed.

According to the second embodiment shown in FIGS. 5 to 8, the projection rod 22 of the push button 2 is integrally formed with the main body of the push button 2, and the valve body portion 21 is formed by the small diameter portion at the lower end thereof. And the valve body 21 is located near the upper end of the shaft hole 11. Further, according to this embodiment, the annular wedge 27 is used for crowning the push button 2 to the stem 1, but it is sufficient that the wedge 27 and the push button 2 are integrally formed. Is possible.

Since this invention is constructed as described above, as shown in FIG. 1 or 5, the stem 1 is mounted on the mountain cap 3, the push button 2 is attached to the head of the stem 1, and the valve body portion is attached. 21 is inserted into the shaft hole 11 of the stem for assembly, and then pressure filling is performed. That is, the push button 2 is covered with a pressure filling nozzle (not shown), the tip of the nozzle is pressure-bonded to the mountain cap 3, and the filler containing the propellant is discharged from the nozzle. At this time, as shown in FIG. 1 or FIG.
Is engaged with the back surface of the stem, and the lower peripheral surface of the stem 1 has a collar 1
Since the groove 13 ending at the top surface of 2 is bored, the above-mentioned filling flows down along the groove 13 under pressure and spreads between the brim 12 and the mountain cap 3, and the mountain cap 3 It is injected and filled in a container (not shown) having a. When the filling is completed and the above-mentioned pressure filling nozzle is removed, the collar 12 is pressed against the mountain cap by the internal pressure of the container and liquid leakage is prevented, so it is shipped as a filled aerosol container and used for other purposes. It

In using the aerosol container thus provided, if the lateral pressure is applied to the push button 2, the stem 1
Is made of a soft elastic cylinder as described above, and since the push button 2 is tightly attached to the head of the stem 1, the head of the stem 1 bends and tilts in the pressing direction. . The stem 1 is a tubular member as described above, and the valve body portion 21 of the push button is in close contact with the wall surface of the shaft hole 11 to prevent liquid leakage, but the stem 1 is bent as described above. If so, the cross-sectional shape of the shaft hole 11 is deformed, so that a portion of the adhesion between the valve body portion 21 and the shaft hole 11 is weak. Therefore, the filling material under pressure rushes into the portion having weak adhesion, and passes through the passage 25 extending from the valve body portion 21 to the ejection port 24 to eject the ejection port 2.
Emitted from 4. When the lateral pressure applied to the push button 2 is released, the soft elastic stem 1 is restored to its original position, and the distortion of the shaft hole 11 is removed, and the wall surface of the shaft hole 11 and the valve body portion 21 are removed. Since the close contact with is restored, the injection of the filler is stopped.

(Effects of the Invention) That is, as can be seen from the above, the present invention has a remarkably simple structure as compared with the known one, although its operation method and action are similar to those of the conventional tilt type aerosol injection valve. is doing. That is, the minimum necessary members are only two points, the push button and the stem, and the mountain cap has a simple circular hole at its mounting position, or a reinforcing brim as shown in the example. Since a simple one is sufficient, mass-productivity is extremely high, and it is possible to provide a tilt-type aerosol injection container having a production cost unmatched by conventional ones.

[Brief description of drawings]

Fig. 1 shows the first of this device attached to a mountain cap.
FIG. 2 is a plan view of the stem of the embodiment, FIG. 3 is a plan view of the stick, and FIG. 4 is a bottom view of the stick. FIG. 5 is a longitudinal sectional view of a second embodiment of the present invention mounted on a mountain cap, FIG. 6 is a plan view of a stem of the same embodiment, FIG. 7 is a plan view of a wedge of the same embodiment, and FIG. Similarly, it is a partially longitudinal front view of a wedge. 1 is a stem, 11 is a shaft hole, 12 is a collar, 13 is a groove, 2
Is a push button, 21 is a valve body portion, 22 is a protruding rod, 22a is a mandrel, 22b is a long brim portion, 22c is a vertical groove, 23 is a top wall, 2
4 is an injection port, 24a is a nozzle body, 25 is a passage, 26 is an annular groove, 3 is a mountain cap, and 4 is a liquid suction pipe.

Claims (1)

[Scope of utility model registration request] 1. A stem 1 formed of a soft elastic cylinder penetrating an axial hole 11 and a push button 2 closely attached to the head of the stem 1, the stem 1 being a mountain cap 3 of an aerosol container.
A flange 12 that tightly engages the back surface of the stem is projected to the base, and a groove 13 that terminates at the top surface of the flange 12 is bored in the lower peripheral surface, so that the push button 2 is in close contact with the wall surface of the shaft hole 11 of the stem. A tilting type aerosol injection valve in which a projecting rod 22 having a portion 21 is hung from a top wall 23 and a passage 25 extending from the valve body portion 21 to an injection port 24 is provided.