JPS6014526Y2 - Packaging sprayer spray button - Google Patents

Description

[Detailed description of the invention] This invention is an improvement on the injection side used in aerosol products or manual spray pumps. A shutoff valve is provided to open and close the vertical hole passage communicating with the pipe to improve the so-called 1-stroke at the end of discharging to prevent excessive dripping. Our aim is to provide quality buttons.

Below, the drawings showing the embodiments of the present invention will be explained.
FIG. 1 is a longitudinal cross-sectional view of the injection side attached to the valve stem, showing a state in which it is not in use, and FIG. 2 is a longitudinal cross-sectional view of the injection side of another embodiment in which the pressing rod is modified.

The injection side 1 is provided with a vertical hole passage 2 in the form of a blind hole that opens downward at the center in the axial direction. It communicates with the horizontal hole passage 5 above the vertical hole passage 2 so as to be able to be attached to the valve stem 3 protruding from the button 4a, and has a nozzle hole 6 with its outer end opening on the outer surface of the button.

The nozzle hole 6 is provided in a nozzle cylinder portion 7 that is fitted and fixed to the tip of the horizontal hole passage 5.

Reference numeral 8 denotes a shutoff valve body which is fitted into and attached to the horizontal hole passage 5.

The cutoff valve body 8 has a small diameter portion 8a at its tip, fits loosely into a smaller diameter horizontal hole passage inside the nozzle tube 7, and abuts its tip against the inner end surface of the nozzle hole 6, and has a small diameter portion 8a at its rear. The large diameter portion passing through the shoulder portion 9 is formed into a ring shape with a central concave portion 10 opening at the rear end surface, thereby forming a shutoff valve 11.

The shutoff valve 11 fits tightly into the horizontal passageway 5 and here blocks off the horizontal passageway 5 and the vertical passageway 2 leading to the nozzle hole.

That is, the ejected material rising through the internal passage of the valve stem 3 when the injection side 1 is pressed down is blocked in the passage leading to the nozzle hole 6.

12 is a side hole provided separately from each of the passages 2 and 5, and is a shutoff valve 1.
1 is opened so as to communicate with the horizontal hole passage 5 and the outer surface of the button.

In FIG. 1, the cutoff valve 11 is provided below the cutoff valve 11 in the axial direction of the injection side 1.

Reference numeral 13 denotes a pressing rod which is slidably attached to the horizontal hole 12.

The pressing rod 13 is shaped like a top with an enlarged part in the middle, and is attached to the horizontal hole 12 by being biased downward via a coil spring 14, and the retainer is stopped by the locking part 15, and the lower end part 13a of the rod is attached to the cutoff valve 11. The lower end portion 13b of the rod protrudes from the lower surface of the button and approaches the upper end surface 4a of the container.

When the press rod 13 is pushed up against the spring, the cutoff valve 11 that comes into contact with it is partially deflected in the horizontal hole passage 5, and the cutoff valve 1
The horizontal hole passage 5 leading to the nozzle hole and the vertical hole passage 2 are communicated with each other on the outside of the nozzle hole 1 so that the ejected material can be discharged to the outside.

As described above, since the rod lower end 13b of the press rod 13 is brought close to the upper end surface 4a, it abuts against the upper end surface 4a at the same time when the button is operated, thereby forming a communication state with the outer periphery of the shutoff valve 11.

When the button stops operating, the button moves upward and the coil spring 14
to restore the pressure rod 13 to its old state, and at the same time close the shutoff valve 11.
to the old state to form a normal shutoff valve 11.

Since the shutoff valve is provided in the passage leading to the nozzle hole 6 in this manner, the emitted material rising due to the excess pressure is shut off in front of the nozzle hole, thereby making it possible to prevent so-called one-kissing and dripping.

The pressing rod 13 shown in FIG. 2 is another embodiment in which the pressing rod 13 hangs integrally below the button pressing piece 16, and is installed in a horizontal hole 12 opening above the shutoff valve 11.

FIG. 2 shows an embodiment in which the button pressing piece 16 is integrally formed with the button, and is also integrally molded with a part connected to the center hole in the upper surface of an outer cylinder 17 that is externally attached to the button.

Reference numeral 18 denotes a coil spring, which is provided as necessary.

19 is an injection window hole. As described above, the present invention provides a shutoff valve made of an elastic material in the horizontal hole passage leading to the nozzle hole, and a press rod is placed above or below the shutoff valve to bend the shutoff valve to ensure communication. Since it is designed to open and close, one shot of injection can be carried out reliably and smoothly, making it a convenient injection side for practical use.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional view of the injection side, and FIG. 2 is a longitudinal sectional view of a button of another embodiment. 1...Injection side, 2...Vertical hole passage, 5.
...Horizontal passageway, tail ...Shutoff valve body, 11...
...Shutoff valve, 12...Horizontal hole, 13...
...Press rod.

Claims (4)

[Scope of utility model registration request] (1) An elastic cylindrical cutoff valve 8 with the nozzle side closed is fitted and fixed in the horizontal hole passage 5 inside the button that extends from the nozzle hole 6 on the outer surface of the button to the vertical hole passage 2, and This packaging sprayer is provided with a shaft hole that opens into a close contact surface between a passage 5 and the shutoff valve 8, and a valve rod 13 that collapses a communication path into the close contact surface and is capable of returning to its original position so as to be interlocked with the fishing operation. (2) A cap-shaped cylindrical portion that closes one end of the horizontal hole passage 5 is fitted with its opening surface facing the vertical hole passage 2 side, and the outer periphery of the cylindrical portion is tightly fitted to the inner end surface of the horizontal hole 12. A shutoff valve made of an elastic material according to claim 1 of the claimed utility model registration. (3) A horizontal hole 12 that communicates with the outer surface of the button and the surface of the horizontal hole passage 5 is passed through in the axial direction of the button 1 below the shutoff valve 11, and a rod 13 that slides in the horizontal hole is directed downward via a coil spring 14. The injection side according to claim (1) of the utility model registration, wherein the rod is biased and attached to the vessel, and the lower end of the rod is located close to the upper end surface of the container. (4) A horizontal hole 12 communicating with the outer surface of the button and the surface of the horizontal hole passageway 5 above the shutoff valve 11 is passed through in the axial direction of the button 1;
2. The injection side according to claim 1, which is a registered utility model, in which a rod 13 hanging from a button pressing piece 16 is slidably fitted into the button pressing piece 16.