JP2515412Y2 - Valve structure of spray head of aerosol container - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a valve structure of an injection head of an aerosol container, and more particularly, an elastic member of a valve stem of a valve structure part of an injection head of an aerosol container is not a coil spring but a lower part of the valve stem. The present invention relates to a valve structure of an injection head of an aerosol container, wherein a lower end portion of a downward elastic leg portion provided is supported upward from a lower position of a valve housing by a hemispherical projection portion.

(Prior Art) Conventionally, the valve structure portion of the injection head structure of an aerosol container has not only a large number of parts, but also many small parts, requiring skilled work by an expert for assembly work. Came. Above all, the coil springs and other parts housed inside the valve housing are very small, and therefore work such as assembling the coil spring inside the valve housing requires difficult assembly work even by an expert. Therefore, the improvement has been demanded.

(Problems to be solved by the invention) Since the work of incorporating the coil spring into the inside of the valve housing is troublesome, it has been conventionally required to improve the work. Therefore, the improvement was urgent. The present invention stops the work of assembling the coil spring inside the valve housing, and installs the constituent members instead of the coil spring, thereby reducing the number of parts and making it easy for beginners to use the valve structure part of the injection head structure of the aerosol container. The first task is to be able to assemble.
In addition, the present invention does not use parts such as a very small coil spring, but allows the downward leg portion to hold elasticity toward the lower end portion of the downward elastic leg portion provided on the lower portion of the valve stem. A second problem is that the conventional coil spring and other components do not have to be incorporated so that the conventional coil spring and other components can be operated. Moreover, this invention makes it a 3rd subject that all parts except a mountain cap part can be formed with a synthetic resin.

(Means for Solving the Problem) The present invention is directed to a valve housing 11, a valve stem 5, and a stem rubber 10 inside a central tubular portion of a mountain cap 1.
Incorporating a three-member binder with the valve housing
A hemispherical protrusion 14 is formed upward from the lower position of 11, and an opening 19 is provided at the center of the hemispherical protrusion 14, and the lower portion of the valve stem 5 is provided on the upper surface around the opening 19. The lower end of the downward elastic leg portion 12 provided on the valve stem 5 is placed, the portion of the inflow port 8 provided at the intermediate position of the valve stem 5 is always closed by the stem rubber 10, and at the time of spraying, the valve stem 5 So that the flow passage of the contents can be opened by the deformation of the stem rubber 10, and
When removing the pressing force on the valve stem 5 from above, the inflow port 8 to the valve stem 5 is restored by the resilience of the downward elastic leg 12 of the valve stem 5.
This is a valve structure for an injection head of an aerosol container, characterized in that the flow passage of the contents can be closed by deforming the stem rubber 10.

(Operation) The valve structure of the injection head of the aerosol container to which the present invention is applied incorporates a three-member coupling material of the valve housing 11, the valve stem 5, and the stem rubber 10 inside the central tubular portion of the mountain cap 1, A hemispherical protrusion 14 is formed upward from a lower position of the valve housing 11, and an opening 19 is provided at the center of the hemispherical protrusion 14 and the opening is formed.
Since the lower end portion of the downward elastic leg portion 12 provided at the lower portion of the valve stem 5 is placed on the upper surface portion around the periphery of the valve stem 19, when the valve stem 5 is lowered, the downwardly directed downward leg provided at the lower portion of the valve stem 5 is lowered. The lower end portion of the elastic leg portion 12 is elastically deformed, and the portion of the inflow port 8 provided at the intermediate position of the valve stem 5 is opened apart from the portion of the stem rubber 10 so that the inside and the outside communicate with each other. Can be ejected to the outside. Then, the portion of the inflow port 8 provided at the intermediate position of the valve stem 5 is normally closed by the stem rubber 10, and during spraying, the valve stem 5 is lowered so that the stem rubber 10 The part can be deformed to open the part of the inflow port 8 provided at the intermediate position of the valve stem 5, open the outflow passage of the content, and allow the content to flow out.
Then, when removing the pressing force from above on the valve stem 5, the portion of the inflow port 8 to the valve stem 5 is fixed to the stem rubber 10 by the restoring force due to the elasticity of the downward elastic leg 12 of the valve stem 5. The deformation closes the outflow passage of the contents, returns to the initial state, and can be repeatedly operated repeatedly.

(Embodiment 1) In the present invention, the upper end portion of the valve stem 5 is inserted into the central through hole 4 of the zenith surface portion 3 of the central tubular portion 2 of the mountain cap 1, and the valve stem 5 is directed downward from the upper end opening portion 6. The vertical hole 7 is formed by connecting the horizontal hole 8 to the lower end portion of the vertical hole 7, and the horizontal hole 8 is normally closed by the stem rubber 10. The inner opening of the stem rubber 10 is a valve. The stem 5 is fitted in the annular groove 9 provided in the lateral hole 8 and the three-member coupling material of the valve housing 11, the valve stem 5, and the stem rubber 10 inside the central tubular portion 2 of the mountain cap 1 is attached. Built-in, the valve housing 11
Forming a hemispherical protrusion 14 from the lower position of
An opening 19 is provided at the center of the hemispherical projection 14, and the lower end of the downward elastic leg 12 provided at the lower portion of the valve stem 5 is placed on the upper surface around the opening 19 and The portion of the inflow port 8 provided at the intermediate position of the valve stem 5 is always closed by the stem rubber 10, and at the time of spraying, the valve stem 5 is lowered so that the stem rubber 10 is deformed so that the outflow passage of the contents is formed. When opening the valve stem 5 and removing the pressing force from above on the valve stem 5, the restoring force by the elasticity of the downward elastic leg 12 of the valve stem 5 causes the portion of the inflow port 8 to the valve stem 5 to be opened. A valve structure for an injection head of an aerosol container, characterized in that an outlet passage for contents can be closed by deformation of the stem rubber 10.

(Effect) The valve structure of the injection head of the aerosol container to which the present invention is applied incorporates a three-member coupling material of the valve housing 11, the valve stem 5, and the stem rubber 10 inside the central tubular portion of the mountain cap 1, A hemispherical protrusion 14 is formed upward from a lower position of the valve housing 11, and an opening 19 is provided at the center of the hemispherical protrusion 14 and the opening is formed.
Since the lower end portion of the downward elastic leg portion 12 provided at the lower portion of the valve stem 5 is placed on the upper surface portion around the periphery of the valve stem 19, when the valve stem 5 is lowered, the downwardly directed downward leg provided at the lower portion of the valve stem 5 is lowered. The lower end portion of the elastic leg portion 12 is elastically deformed, and the portion of the inflow port 8 provided at the intermediate position of the valve stem 5 is opened apart from the portion of the stem rubber 10 so that the inside and the outside communicate with each other. Has the effect that it can be ejected to the outside.
Then, the portion of the inflow port 8 provided at the intermediate position of the valve stem 5 is normally closed by the stem rubber 10, and during spraying, the valve stem 5 is lowered so that the stem rubber 10 The portion is deformed so that the portion of the inflow port 8 provided at the intermediate position of the valve stem 5 is opened, the outflow passage of the contents is opened, and the contents can be discharged. Then, when removing the pressing force from above to the valve stem 5, the part of the inflow port 8 to the valve stem 5 is moved to the stem rubber by the restoring force due to the elasticity of the downward elastic leg portion 12 of the valve stem 5.
The ten deformations have the effect of closing the outflow passage of the contents, returning to the initial system, and repeatedly operating repeatedly. And
The upper surface of the injection head 16 of the aerosol container is pressed downward by a finger or the like to move the injection head 16 and the valve stem 5 downward.
And the lower end of the downward elastic leg portion 12 provided at the lower portion of the valve stem 5 is an opening provided at the center of a hemispherical protrusion 14 formed upward from the lower position of the valve housing 11. When the lower end of the downward elastic leg portion 12 provided in the lower portion of the valve stem 5 is placed on the upper surface around the portion 19, the valve stem 5 is moved downward and the valve stem 5 is lowered. 5, the lower end portion of the downward elastic leg portion 12 provided at the lower portion of 5 elastically deforms to cause the valve stem 5
The portion of the inflow port 8 provided at the intermediate position of the
It is opened apart from the part of 10, communicating inside and outside,
There is an effect that the contents can be ejected to the outside. The contents are atomized when passing through the opening 19 provided at the center of the hemispherical protrusion 14 formed upward from the lower portion of the valve housing 11, and further the intermediate portion of the valve stem 5 is formed. Since it can be atomized and ejected to the outside from the ejection port 18 provided in the ejection head 16 through the outflow passage provided at the position, the content can be reliably ejected in the atomized state.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view of a valve structure of an injection head of an aerosol container according to the present invention, and FIG. 2 is a main part of the valve structure shown in FIG. FIG. 3 is a top view, and FIG. 3 is a bottom view of a valve housing which is a main constituent part of the valve structure shown in FIG. 1. 1 ... Mountain cap, 2 ... Central cap of mountain cap 3 ... Mountain surface of mountain cap, 4 ... Central through hole of mountain cap 5 ... Valve stem, 6 ... Opening upper end of valve stem 7 ... Vertical hole of valve stem, 8 ... Horizontal hole of valve stem 9 ... Annular groove of horizontal hole of valve stem, 10 ... Stem rubber 11 ... Valve housing, 12 ... Downward elastic leg of valve stem 13 ... … The large-diameter cylinder of the valve housing, 14 …… The hemispherical projection of the valve housing 15 …… The upper projection of the valve stem, 16 …… The injection head of the aerosol container 17 …… The injection beak of the injection head of the injection container, 18 ...... Injection port of injection head of injection container 19 ...... Center opening of hemispherical projection, 20 ...... Cylinder for supporting content supply pipe 21 ...... Content supply pipe, 22 ...... Inward biting protrusion 23 ... … Valve housing circumference Flutes

Claims (3)

(57) [Scope of utility model registration request] 1. A valve housing 11, a valve stem 5, and a stem rubber 10 inside a central cylindrical portion of a mountain cap 1.
Incorporating a three-member binder with the valve housing
A hemispherical protrusion 14 is formed upward from the lower position of 11, and an opening 19 is provided at the center of the hemispherical protrusion 14, and the lower portion of the valve stem 5 is provided on the upper surface around the opening 19. The lower end of the downward elastic leg portion 12 provided on the valve stem 5 is placed, the portion of the inflow port 8 provided at the intermediate position of the valve stem 5 is always closed by the stem rubber 10, and at the time of spraying, the valve stem 5 So that the flow passage of the contents can be opened by the deformation of the stem rubber 10, and
When removing the pressing force on the valve stem 5 from above, the inflow port 8 to the valve stem 5 is restored by the resilience of the downward elastic leg 12 of the valve stem 5.
The valve structure of the injection head of the aerosol container, characterized in that the flow passage of the contents can be closed by the deformation of the stem rubber (10). 2. A practical use in which a lower end portion of a downward elastic leg portion 12 provided at a lower portion of a valve stem 5 is supported by an inclined surface portion of a hemispherical projection portion 14 from a lower position of the valve housing 11 upward. A valve structure for an injection head of an aerosol container according to claim 1. 3. An injection head 16 is provided above the valve stem 5,
A valve structure for an injection head of an aerosol container according to claim 1, wherein a contents supply pipe 21 is connected to a downwardly facing tubular portion 20 of a lower portion of a valve housing 11 inside a central tubular portion of the mountain cap 1. .