JPH0352119Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) This invention relates to an upright injection drive device that is set and fixed to the upper end of an aerosol container such as a mousse product and discharges the contents by operating a stem.

(Prior Art) Mousse products are generally used upside down. This is thought to be due to the fact that the spray direction of the spout is axially upward, and the operating position is good in that the spout is tilted directly with the operating finger to open the sideways valve below the stem. This vertical spout has an open discharge end, so after the valve is closed, the contents are likely to remain in the passage leading to the discharge end and deteriorate, or they may protrude from the spout and accidentally damage the outer surface of the container. Make it dirty. For this purpose, a tip stop is provided on the open side of the spout to improve the so-called foam removal. It is desirable to improve foam removal even in mousse products that are used upright.

(Purpose of the invention) The object of the invention is to provide an injection drive device that improves the foam removal of a mousse product when used upright, eliminates inadvertent leakage, and allows smooth use in an upright position.

(Structure of the invention) In the present invention, the valve stem of the tip stop and the button are rotatably connected, and the valve below the stem and the valve of the tip stop can be opened and closed via the button by operating the operating lever.

Hereinafter, the drawings showing the embodiment of the present invention will be described. FIG. 1 is a longitudinal cross-sectional view of the device when it is not in operation, and the lower part 1a of the outer cap 1 can be fitted and fixed to the upper end of the mousse product container 2. So,
A stem 4 and a button 5 are housed in the internal cavity 3, and a tip stop valve 6 is also incorporated therein. A window hole 7 is opened in the top wall 1b of the exterior cap 1, and an operating lever 8 whose front edge is connected to the window hole 7 is formed so that it can be elastically pushed into the internal cavity 3 through the window hole 7. 8a is a pressing portion protruding from the lower surface of the operating lever 8, which is brought into contact with the upper end surface of the button 5 fitted to the stem 4;
By pushing down the operating lever 8, the button 5 and the stem 4 are tilted forward, and the horizontal tilting valve connected below the stem 4 is opened. A chip part 9 is fitted and fixed to a part of the outer periphery of the upper end of the exterior cap 1. 9a is a discharge port for the chip component 9.

10 is a valve stem, with a spherical part 10a provided on the rear end side;
The small diameter neck portion 10 is formed with the front end portion 10b remaining on the front end side.
c, and a horizontal hole 11 is opened on the outer surface of the small diameter neck portion 10c, which communicates with an internal passage 12 that opens into the spherical portion 10a. A rubber valve material 13 is fitted into the small-diameter neck portion 10c of the valve stem 10 to seal the horizontal hole 11 with its inner circumferential surface, and the rubber valve material 13 is slidable within a certain range with respect to the valve stem 10. The horizontal hole 11 is made openable. 10d is a stopper when the rubber valve member 13 is retracted. The valve stem 10 that integrally has the rubber valve material 13 has the front end of the rubber valve material 13 abutted against the inner step 9b of the chip component 9, and the spherical portion 10a is rotatably connected to the outer recess 14 of the button 5. Then, the rear end 12a of the discharge passage 12 is opened and communicated with the internal passage 5a of the button 5.

When the operating lever 8 is pushed down from the state shown in Figure 1,
As described above, while tilting the button 5 and the stem 4, the valve below the depressed stem 4 is opened and the contents are injected. When the button 5 is tilted, the valve stem 10 moves forward by a predetermined distance. The rubber valve material 13, which abuts against and is fixed to the inner step portion 9b, is pushed in by the stopper 10d of the valve stem 10, thereby expanding the abutting surface outward.

The horizontal hole 11 separates from the inner peripheral surface of the rubber valve material 13 when the valve rod 10 moves forward, and the rubber valve material 13 is compressed and deformed, so that it is released from the sealing of the rubber valve material 13. When pushing down the operating lever 8, the button 5 and valve stem 10
Since the valve stem 10 can freely rotate around its axis between the spherical part 10a and the outer recessed part 14, the valve stem 10 can smoothly slide and be displaced even when the button 5 is tilted. When the operating lever 8 is released, the valve stem 10 and the rubber valve material 13 are restored to their old state, so that the horizontal hole 11 is kept sealed by the inner peripheral surface of the rubber valve material 13.

In the explanation so far, it has been explained that the content injection device is a horizontally tilted valve, but a known valve that opens by straight down can also be used. In this case, the inclination of the valve stem 10 increases,
At this time of inclination, a gap for opening the horizontal hole 11 is created in a part of the close contact surface of the inner circumferential surface of the small diameter neck portion 10c and the rubber valve member 13, and the gap is made to communicate with the discharge port 9a.

(Effects) As described above, the present invention horizontally arranges the valve stem 10 having the rubber valve material 13 integrally in the space between the tip part 9 and the button 5, and inserts the spherical part 10a of the valve stem 10 into the recess on the outer surface of the button 5. Due to the structure in which the front end of the rubber valve material 13 is engaged with the inner step 9b of the tip part 9, the valve rod 10 is displaced when the operating lever 8 is operated, and the rubber valve material 13 is compressed and deformed. Therefore, the tip stop valve 6 can be opened and can be used for mousse products that are used upright. Moreover, since the valve stem 10 and the button 5 are freely connected, the valve can be operated smoothly and easily in conjunction with the movement of the button 5, and can be used regardless of the type of valve below the stem.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional view, and FIG. 2 is a partial sectional view. 1...Exterior cap, 4...Stem, 5...
Button, 6... Chip stop valve, 8... Operating lever, 9... Chip parts, 10... Valve stem, 10a
... Spherical body part, 10c ... Small diameter neck part, 13 ... Rubber valve material, 14 ... Outer surface recessed part.

Claims (1)

[Scope of utility model registration request] Top wall 1 of an exterior cap 1 that can be fixed to a product container
An operating lever 8 for operating the button 5 and stem 4 inside the cap is molded on b, a tip stop valve 6 is horizontally connected between the outer surface of the button and a tip part 9 fixed to the outer wall of the cap, and , a rubber valve material 13 is attached to the inner step 9b of the chip part 9, which connects the outer surface of the button and the rear end of the valve stem spherically so as to be able to move in conjunction with each other when the button is operated, and which opens the horizontal hole 11 of the valve stem when the valve stem 10 is displaced. An upright injection drive device for mousse products made by contacting each other.