JPS6313803Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a cap for an aerosol container containing a compressed fluid such as a liquid or creamy material, and more specifically, a cap for preventing the valve of the aerosol container from operating before use. This relates to devices that have protective measures to

A number of caps have been known in the past that are equipped with a protective member that prevents the valve of the aerosol container from being actuated before use; however, there are essentially two types of known caps of this kind; The type includes two separate bodies, one of which can be mounted on the valve body or the top of the container of material to be ejected, and the other can be mounted directly on the valve stem, with the protective member attached to one of the bodies. acts to prevent one body from moving axially relative to the other;
and other types include two bodies forming a unitary member by means of two mutually connected protective elements, again one of said two bodies being attachable to the valve body or to the top of the container and the other body being can be mounted on the valve stem. It is clear that such a cap with a protective member as described above is expensive to manufacture and complex to assemble at the point of use.

The main purpose of this invention is to provide a cap for an aerosol container with a protective member that is extremely inexpensive to manufacture and easy to assemble at the site of use.

According to the present invention, the above-mentioned problems are solved by a cap body having a seat portion for accommodating the end of the valve stem of an aerosol container, a passageway communicating the seat portion with a discharge nozzle, and a cap body having breakable radial finger-shaped parts. It consists of a cylindrical protective sleeve with an arcuate cross section smaller than 360 degrees and a partially open side wall, which is attached to the cap body via a member, and this sleeve is attached to the top of the aerosol container to be burst-fitted. By providing a corresponding lower end opening, this was achieved in such a way as to prevent activation of the valve of the aerosol container before the finger is destroyed.

In order to more fully understand the structure and features of the cap according to this invention, preferred embodiments of the cap according to this invention will be described below with reference to the accompanying drawings.

As shown in the accompanying figures, the cap for an aerosol container with a protective element comprises a cap body, generally designated by the reference numeral 1, and a protective sleeve, designated as a protective member, designated by the reference numeral 2.

A passage 3 having a seat 10 at one end passes through the cap body 1, and the seat 10 is connected to the aerosol container 5.
It is lightly pressed into the free end of the valve stem 4 of the valve mounted above (FIG. 1). This aerosol container has a valve formed in its cylindrical upper part, but its structure is not important and is therefore omitted.
Rather than being part of a jetting valve for aerosol materials, the valve stem 4 may be part of a manual injection device or pump for pressurizing or jetting liquid or creamy materials under pressure. The structure of the injection device or pump is not important for understanding the features of the protective cap, which is known per se and is described within the scope of the invention claimed herein.

The protection member is formed by cutting out a part of the side wall.
from a substantially cylindrical protective sleeve 2, the cross section of which extends over an arc of less than 360° (in particular the second
(as shown in Fig. and Fig. 3), thereby 2
two free edges 7 and 8 respectively.

This protective sleeve 2 is made integrally with the cap body 1 by a plurality of breakable fingers 9 (FIG. 2), and the cap body 1, the protective sleeve 2
and the fingers 9 are preferably made as a one-piece piece of cast plastic material. Said protective sleeve 2 corresponds to the shape of a part of the aerosol container 5 (in this example, the cylindrical wall 6 of the aerosol container is schematically illustrated), namely the upper part, and has an interlocking shape and cross-sectional shape. or have a shape and cross section corresponding to the top of the container to which the injection device or pump or cap body is attached.

When the cap body with a protective sleeve is mounted on a valve or a syringe or a pump that is integral with the container for the material to be dispensed (as shown in the figures), said protective sleeve 2 can e.g. It is a slightly press fit to accommodate the complementary part of the injection device or pump valve. Under these conditions, actuation of the valve stem 4 is prevented by the protective sleeve 2 by keeping said protective sleeve intact, since the protective sleeve 2 This is because the valve is frictionally engaged with the upper portion of the container to which it is attached. In order to eject material under pressure, the free edge 7 or 8 of the protective sleeve 2
Just by hooking one of the fingers with a nail, the finger-like member 9
is destroyed and separated. In this way, the cap body 1 remains mounted on the valve stem 4, and in such a state the cap can be easily pushed down, moving the valve stem and discharging compressed fluid (e.g. liquid or cream). material) is discharged from the discharge nozzle 11 through the passage 3 of the cap body.

From the above description it is clear that the construction of the above described cap with a protective sleeve is extremely simple and it is easy to understand that said cap can be made at very low manufacturing costs and is easy to assemble and use. will be done.

[Brief explanation of the drawing]

Figure 1 is a longitudinal section showing the cap body attached to the end of the valve stem, with a portion thereof shown in section; Figure 2 is a plan view of the cap with the protective sleeve; Figure 3 is the cap body attached to the aerosol container; FIG. 3 is a front view of the cap. Symbols in the diagram: 1... Cap body, 2... Protective sleeve, 3... Passage, 4... Valve stem, 5
...Aerosol container, 6...Cylindrical wall, 7,8...
Free edge, 9... finger-like member, 10... seat, 11...
...Indicates the discharge nozzle.

Claims (1)

[Scope of utility model registration request] A cap body 1 is provided with a seat 10 that accommodates the end of the valve stem 4 of the aerosol container 5, a passage 3 that communicates this seat with a discharge nozzle 11, and a breakable radial finger member 9. It consists of a cylindrical protection sleeve 2 with an arcuate cross section smaller than 360 degrees and a partially open side wall, which is attached to the cap body 1, and this sleeve corresponds to the upper part of the aerosol container to be broken into. an aerosol container 5 with a lower end opening before the finger-like member 9 is destroyed;
A cap for an aerosol container characterized by preventing the valve from operating.