JPH0128837Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Technical Field of the Invention The present invention relates to a novel aerosol device. More specifically, the present invention relates to an aerosol device that is particularly suitable for small-sized aerosol devices used for household spray medicines, cosmetics, and the like.

[Prior art]

A conventional aerosol device includes, for example, a mounting cap 52 having an opening 51 at one end, as shown in FIG. 3, and a valve mechanism 54 inserted into the opening 51 via a gasket 53. There is. The valve mechanism 54 includes a housing 56 into which a dip tube 55 is inserted at the lower end, a cap 58 that is fixed to the housing 56 via an elastic ring-shaped valve body 57, and a cap 58 that is arranged in a cavity 59 of the housing 56 in the axial direction. It is composed of a movably inserted stem 60, a spring 61 that always urges the stem 60 upward, and the like.

However, in a valve mechanism with such a configuration, the housing 56 and the cap 58 are usually fitted in a complicated shape, which is disadvantageous in terms of assembly work and maintaining accuracy of parts, especially when applied to small aerosol products. It is. Therefore, there is a demand for an aerosol device having a simpler configuration than the conventional one.

[Purpose of invention]

The present invention has been made in view of the above points, and it is an object of the present invention to provide an aerosol device that has a simple configuration and is easy to assemble.

[Structure of the idea]

In order to achieve such a purpose, the aerosol device of the present invention includes a cylindrical container having an opening at one end and an engaging projection provided near the opening, and a gasket provided at one end of the container. a housing that is inserted into the housing and is locked and fixed to the engagement protrusion; a stem that is inserted into a cavity formed in the housing so as to be movable in the axial direction via an elastic valve body; an urging member for urging outward in a direction; and a lid for pressing the valve body from the outside, and at least one of the gasket and the valve body is a locking portion formed on the housing and the lid, respectively. A structural feature is that the housing and the lid are connected by engaging with the lid.

[Embodiments] Next, the aerosol device of the present invention will be described with reference to the drawings.

FIG. 1 is a sectional view showing one embodiment of the aerosol device of the present invention, and FIG. 2 is a sectional view showing another embodiment of the aerosol device of the present invention.

In FIG. 1, 1 is a cylindrical container having an opening 2 at its upper end. The container 1 may be made of metal, such as aluminum. The lower end of the container 1 is provided with a bottom (not shown) which is formed integrally with the body or is formed separately from the body and then tightly connected to the body.

In the opening 2 of the container 1, a housing 4 having a cavity 3, an annular elastic valve body 5, and a lid 7 are stacked in that order, and the housing 4 and the lid 7 are stacked to connect the whole. A gasket 8 is fitted around the outer periphery of the gasket. A stem 9 is inserted into the cavity 3 so as to be freely movable in the axial direction, and an annular groove 10 formed on the outer periphery of the stem 9 engages with the inner periphery of the valve body 5.

An annular engagement protrusion 11 is provided on the container 1 to protrude inward, and the engagement protrusion 11 locks and fixes an engagement portion 12 formed on the outer periphery of the lower end of the housing 4.

The upper edge 13 of the container 1 is bent inward to hold the lid 7. A spring 14 for biasing the stem 9 upward is housed in the space 3, and a dip tube 15 is connected to the lower end of the housing 4.

In the aerosol device shown in FIG. 1, stepped portions 16 and 17 are formed on the outer periphery of the upper end of the lid 7 and the outer periphery of the housing 14, respectively, and constitute a locking portion for locking the gasket 8. Note that the lid 7 and the housing 14 may be connected by the valve body 5 or by both the gasket 8 and the valve body 5.

In the aerosol device constructed as described above, the lid 7 and the housing 4 do not fit into each other, but are fixed to the container 1 via the gasket 8. Therefore, forming and assembling the respective parts is extremely simple compared to the conventional method. Moreover, the lid 7 and the housing 4
are not inserted into the container 1 in separate pieces, but are assembled externally, connected together by the gasket 8, and then inserted into the container 1 as one unit, making the assembly process easy. It has the advantage of being Note that there is a lid 7 inside the container 1,
After inserting the housing 4 and the like, by bending the upper edge 13 shown by the two-dot chain line in FIG. 2, the entire aerosol device can be firmly connected. Further, the lid 7 and the housing 4 are preferably made of synthetic resin such as polyacetal, polyamide, polypropylene, polyethylene, etc., but they may also be made of metal.

The shape of the engaging projection 11 is not particularly limited, and various shapes such as a continuous annular projection, a plurality of discontinuously arranged annular projections, etc. can be adopted. Furthermore, although the engaging protrusion 11 may be processed together with the upper edge 13, it is preferable to form it on the container 1 in advance.

An aerosol device constructed as described above can be operated in the same manner as conventional ones. That is, by pushing the stem 9 downward and bending the inner peripheral side of the valve body 5 downward to remove the hole 16 from the valve body 5, the space 3 communicating with the interior 17 of the container 1 can be made to communicate with the outside. can.

Next, a more preferred embodiment of the aerosol device of the present invention will be described with reference to FIG.

In the aerosol device shown in FIG. 2, deep annular grooves 18 are formed as locking parts on the outer peripheries of the lid 7 and the housing 4, and the gasket 19 also has locking parts that can be engaged with these annular grooves 18. A mating protrusion 20 is provided. Further, the gasket 19 and the valve body 21 are integrally formed. That is, there is a gasket 19 between the housing 4 and the lid 7.
Only one rubber molded member 22 in which the valve body 21 and the valve body 21 are connected is interposed. In this product, the housing 4, lid 7, etc. are made of rubber molded members 2.
It can be assembled outside the container 1 by taking advantage of the elasticity of the container 1.

The aerosol product shown in Figure 2 is
In addition to the advantages of the illustration, the small number of parts makes parts management and assembly easier, and once assembled, the lid 7 and housing 4 are firmly connected. Further, since the valve body 21 and the gasket 19 are integrally formed, the inside 17 and the outside of the aerosol container 1 are completely shielded by the rubber forming body 22 except for the hole in the valve body 21. It has an excellent effect of being extremely airtight.

Therefore, there is an advantage that, for example, when bending the upper edge 13 to connect the lid 7 and the housing 4, it is not necessary to press with particularly strong force.

[Effects of the invention] As mentioned above, the aerosol device of the present invention has a simple structure and is easy to assemble, so it can be suitably adopted especially for inexpensive and small aerosol products. The practical value is extremely large.

[Brief explanation of drawings]

Fig. 1 is a sectional view showing one embodiment of the aerosol device of the present invention, Fig. 2 is a sectional view showing another embodiment of the aerosol device of the present invention, and Fig. 3 is a sectional view showing an example of a conventional aerosol device. It is a diagram. Main symbols in the drawing: 1: Container, 2: Opening, 3:
Blank space, 4: Housing, 5, 21: Valve body,
7: Lid, 8, 19: Gasket, 9: Stem, 1
4: Spring.

Claims (1)

[Claims for Utility Model Registration] 1. A cylindrical container having an opening at one end and an engaging protrusion provided near the opening; A housing that is locked and fixed to the mating projection, a stem that is movably inserted in the axial direction through an elastic valve body into the cavity formed in the housing, and for urging the stem outward in the axial direction. and a lid for pressing the valve body from the outside, and at least one of the gasket and the valve body engages with a locking portion formed on the housing and the lid, respectively. An aerosol device consisting of a housing and a lid connected. 2. The aerosol device according to claim 1, wherein the gasket and the valve body are integrally formed from a rubber material.