JPH0441945Y2 - - Google Patents

Description

[Detailed explanation of the idea] (Industrial application field) The present invention relates to improvements in aerosol containers.

(Prior Art) In this type of aerosol container, an injection valve rod protruding from the pressure-resistant container is pushed down, thereby ejecting the contents compressed and filled into the pressure-resistant container. Such aerosol containers are sometimes provided with a locking mechanism to prevent erroneous operation and ensure safety (see, for example, Japanese Utility Model Publication No. 58-49797).

(Problems to be Solved by the Invention) However, the conventional aerosol container has a problem in that its locking mechanism is complicated and operation is troublesome.

The present invention was devised in view of the above problems, and its purpose is to provide an aerosol container that has a simple structure and can be easily locked and unlocked without visual confirmation.

(Means for Solving the Problems) In order to achieve the above object, the present invention supports an injection button in a vertically movable manner on a cap fitted on the upper part of a pressure vessel, and an injection nozzle integrally provided on the cap. The cylindrical boss portion of the container is engaged with the injection valve rod protruding from the pressure container, and the injection button is engaged with the cylindrical boss portion and moved downward, thereby making it possible to push down the injection valve rod and eject the contents. In the aerosol container configured as shown in FIG. A cam groove is formed, and the cap is provided with an engaging protrusion that engages with the cam groove.

(Function) When the engaging protrusion of the cap is engaged with the shallow locking portion of the cam groove provided in the injection button, the injection button is prevented from moving downward, and the container is in a so-called locked state. Even if you accidentally press the ejection button, the contents will not be accidentally ejected. Also, when the injection button is turned and the engagement protrusion on the cap side comes into contact with the step stopper part of the cam groove provided on the injection button, the engagement protrusion fits into the deep groove-shaped open part of the cam groove, and the injection button is closed. When the container can be moved downward, the locked state of the container is released and the container can be used.

(Example) An example of the present invention will be described below based on the accompanying drawings.

Figures 1 to 4 show the container in a locked state, and in the figure, 1 is a pressure-resistant container that is compressed and filled with aerosol liquid, and has an annular curled portion 1a at its upper end. This upper end is covered with a cap 2. This cap 2 is integrally formed with inner and outer cylinder walls 3 and 4 forming a concentric double structure, and as shown in the figure, the inner cylinder wall 3 of the cap 2 is connected to the outer circumference of the curled portion 1a of the pressure vessel 1. It is attached to the upper end of the pressure vessel 1 by being attached to the pressure vessel 1. Further, an injection nozzle 5 is integrally provided in the cap 2 and is flexibly deformable. The lower end of the cylindrical boss portion 5a of the injection nozzle 5 abuts and engages with the injection valve rod 6 protruding from the upper end of the pressure vessel 1. By moving the injection valve rod 6 downward, the aerosol liquid compressed and filled into the pressure container 1 is ejected.

In addition, there is an injection button 7 in the central recess of the cap 2.
is housed so that it can move up and down and rotate freely,
A boss portion 7a is integrally formed in the center of the injection button 7.
Moreover, it is provided to protrude vertically.

By the way, as shown in FIG.
Four pairs of cam grooves 8 are formed on the lower peripheral edge of the boss 7a, each having a shallow groove-like locking part 8a, a deep groove-like open part 8b, and a stepped stopper part 8c, and a protruding rib 7b is formed on the boss 7a. On the other hand, the cap 2 has a plurality of (four in the illustrated example) engaging protrusions 9 with which the cam groove 8 should engage, and a flexible engagement with which the ribs 7b should engage and disengage. A piece 9' is provided at one location of the plurality of engagement protrusions 9.

Next, the function of this aerosol container will be explained.

In the state shown in FIGS. 1 to 4, the cap 2
The engaging protrusion 9... provided with the cam groove 8... is engaged with the lock portion 8a... of the cam groove 8... provided on the injection button 7, and in this state, the downward movement of the injection button 7 is prevented and the container is locked. state. Therefore, in this locked state, even if the injection button 7 is pressed by mistake,
There is no possibility that the aerosol liquid in the pressure-resistant container 1 will inadvertently spray out to the outside and impair safety.

On the other hand, FIGS. 6 to 9 show the state where the injection button 7 is in the open position, that is, the position where the aerosol liquid can be injected, and the injection button 7 is moved from the state shown in FIG. When the button 7 is rotated by 90 degrees in the direction, the rib 7b engages and disengages from the engagement piece 9', producing a sound and giving a click feeling to the rotation of the injection button 7. The engaging protrusions 9 all come into contact with the stopper portions 8c of the cam grooves 8 provided in the injection button 7, thereby engaging with the deep groove-shaped open portions 8b, and the injection button 7 can be moved downward. The container is in a so-called open state. In this state, if the injection button 7 is pressed in the direction of arrow A with a finger as shown in FIG. urge Then, the aerosol liquid compressed and filled into the pressure container 1 is ejected from the injection nozzle 5 in the direction of arrow B in FIG.

In the above, the injection button 7 is used to set the aerosol liquid filled in the pressure container 1 to the injection enabled position (open position) and the injection disabled position (locked position).
Since the structure is made by only the rotation operation, the structure is simplified and the operation is easy.

Next, modified embodiments of the present invention are shown in Figures 10 and 11.
To explain based on the drawings, the injection button 107 is also supported by the cap 102 in a vertically movable and rotatable manner, and the injection button 107
A cam groove 108 consisting of a lock portion 108a, an open portion 108b, a stopper portion 108c, and a protruding rib 107b are formed on the cap 102.
There are engaging protrusions 109 to be engaged with the cam grooves 108...
A locking piece 109' is provided in series with one of the plurality of engaging protrusions. Therefore, the same effects as those obtained in the first embodiment can be obtained in this embodiment as well.

(Effects of the present invention) As is clear from the above explanation, according to the present invention, the injection button is rotatably supported, and the bottom edge of the button is provided with a shallow groove-shaped lock portion, a deep groove-shaped open portion, and a stepped portion. A cam groove with a stopper part is formed, and the cap is provided with an engaging protrusion that engages with the cam groove, making it possible to lock and release the container simply by rotating the injection button. The advantage is that the structure can be simplified and the operation can be facilitated. In particular, to release the lock or open position, the position of the deep groove-shaped open part that allows the downward movement of the injection button can be determined by simply bringing the engaging protrusion provided on the cap into contact with the stepped part of the stopper part of the cam structure. , the open position can be aligned without visual confirmation, making operation even easier.

[Brief explanation of the drawing]

1 to 9 show examples of the aerosol container according to the present invention, and FIGS. 1 to 4 show the case where the injection button is in the locked state,
FIG. 1 is a plan view of an aerosol container according to the present invention;
Figure 2 is a view in the direction of arrow A in Figure 1, and Figure 3 is a view in the direction of arrow A in Figure 1.
Figure 4 is a partial cross-sectional view taken along line - of Figure 1.
Fig. 5 is an exploded perspective view showing the relationship between the injection button and the cap, Figs. 6 to 9 show the injection button in the open state, and Fig. 6 shows the aerosol container. A plan view, FIG. 7 is a view in the direction of arrow B in FIG. 6, and FIG. 8 is a view in the direction of arrow B in FIG. 6.
FIG. 9 is a partial sectional view taken along the - line in FIG. 6 showing the injection state; FIGS. 10 and 11 are views showing modified embodiments of the present invention; FIG. 11 is an exploded perspective view of the cap and the ejection button of the aerosol container according to the example. Explanation of symbols, 1...Pressure container, 2,102...
Cap, 6...Injection valve rod, 7,107...Injection button, 8,108...Cam groove, 8a, 108a
... Lock part, 8b, 108b ... Open part,
8c, 108c...stopper part, 9,109...
Engagement protrusion.

Claims (1)

[Scope of utility model registration request] An injection button is vertically movably supported by a cap fitted on the upper part of the pressure vessel, and a cylindrical boss portion of an injection nozzle provided integrally with the cap is engaged with an injection valve rod protruding from the pressure vessel. In the aerosol container configured such that the content can be ejected by pushing down the injection valve stem by engaging the injection button with a cylindrical boss portion and moving it downward, the injection button is rotatable with respect to the cap. A cam groove is formed on the periphery of the lower end of the injection button, and includes a shallow locking part, a deep opening part, and a stepped stopper part. An aerosol container characterized by being provided with a protrusion.