JPH055981Y2 - - Google Patents

Description

[Detailed description of the invention] (Purpose of the invention) This invention relates to an aerosol injection container whose operating mechanism can be locked in order to prevent accidental injection while carrying or other undesired situations. The objective is to provide a compact, functional injection container.

Conventionally, a removable cap was attached to an aerosol injection container, and it was customary to cover operating mechanisms located outside the container, such as a push button with an injection nozzle, with the cap to prevent accidental injection. Since the cap of small-sized injection containers is easily lost, some have been proposed in which the cap is omitted and the operating mechanism can be locked instead. However, if the diameter of the perfume bottle or other container is 20
For injection containers smaller than mm, it is difficult to use a seam type mountain cap, so it is difficult to assemble a simple locking device into such small injection containers.
This idea was the result of devising a means to overcome these difficulties.

(Structure of the invention) This invention will be described below with reference to the illustrated embodiment. This invention has the following container body 1, valve housing 2, valve stem 3, and push button 4.

The container body 1 has a cylindrical mouth wall 13 formed at the periphery of an annular shelf 12 that extends and extends above a narrow neck 11.

The valve housing 2 has a locking pin 22 from a part of the mouth rim 21.
is formed in a convex manner upward.

The valve stem 3 is inserted into the valve housing 2 via an annular elastic valve seat 31 fixed within the valve housing 2.
A side hole 33 following a bottomed shaft hole 32 and an elastic valve seat 31 constitute an injection valve.

The push button 4 is provided with an injection port 41 and has an annular groove 42 formed in the bottom surface for receiving the lock pin 22, and the annular groove 42 has a shallow bottom surface 43 and a deep bottom surface 4.
4 are formed adjacent to each other. Further, the push button 4 is rotatably fitted into the valve stem 3 so that the shaft hole 32 of the valve stem 3 can be connected to the injection port 41.

Next, according to this invention, the valve housing 2 has an annular base 5 that can be engaged with the mouth edge 21 from the outer periphery like a key.
It is caulked and fixed to the ring shelf 12 by. Also,
According to this invention, the lock pin 22 is selectively located below the shallow bottom surface 43 or the deep bottom surface 44 of the annular groove 42 by rotation of the push button 4, and the shallow bottom surface 43 is located below the lock pin 22. It forms a stopper.

This invention has been developed as described above, but to add some explanation to the illustrated embodiment, 23 is an elastic valve seat 31 which is a component of the injection valve.
It is a ring-shaped presser foot. In particular, as can be seen from FIG. 4, in the illustrated example, two lock pins 22 are provided axially symmetrically, but the number and installation locations of the lock pins 22 are not limited to the illustrated example. However, the shallow bottom surface 43 and the deep bottom surface 4 in the annular groove 42
4 corresponds to the lock pin 22 and must be formed adjacent to it. And the shallow bottom surface 43 is the lock pin 2
Therefore, if a plurality of shallow bottom surfaces 43 are provided depending on the number of lock pins 22, it is natural that the shallow bottom surfaces 43 should be designed to have the same depth. Of course, there is no limit to the depth of the deep bottom surface 44.

The injection port 41 in the illustrated example is formed in the end wall of a beak tube 45 fitted into the push button 4, and is usually an elastic stopper 46.
When injection pressure is applied to the annular chamber 47 in front of the collar of the elastic stopper 46, the head of the stopper is retracted and opened. The material of the cap 5 is as shown in FIG. 2 and FIG.
A valve housing 2 is caulked to a ring shelf 12 of a container body 1.

Further, according to the illustrated example, a rotation stopper is provided to prevent the push button 4 from rotating more than necessary. This rotation stopper is formed by a groove end wall 43a of the shallow bottom surface 43 far from the deep bottom surface 44 and a groove end wall 44a of the deep bottom surface 44 far from the shallow bottom surface 43.

In addition, in the illustration, 6 is a valve spring of the valve stem 3, and 7 is a liquid suction pipe.

This device is constructed as described above, and the valve housing 2 is fixed to the ring shelf 12 of the container body by caulking with an annular mouthpiece that can be engaged with the mouth edge 21 from the outer periphery in a hook-like manner. Despite the fact that the lock pin 22 protrudes from a part of the edge 21, the work of fixing the valve housing 2 to the container body 1 is extremely simple, and there are no failures such as breakage of the lock pin 22.
In addition, even if the container body is 20 mm or less and it is difficult to use a seam type mountain cap, the valve case can be installed reliably.

Further, according to this invention, an annular groove 42 for receiving the lock pin 22 is bored in the bottom surface of the push button 4, and a shallow bottom surface 43 is formed in the annular groove 42 corresponding to the lock pin 22.
and a deep bottom surface 44 are formed adjacent to each other, and by rotation of the push button 4, the lock pin 22 is selectively located below the shallow bottom surface 43 or the deep bottom surface 44,
In addition, since the shallow bottom surface 43 forms a stopper for the lock pin 22, the push button 4 can be kept in a locked state without being pushed down during transportation, storage, or other unnecessary situations, thereby preventing the occurrence of erroneous injection. , when used, the locked state can be released immediately.

(Effects of the invention) Thus, according to this invention, not only can the purpose of preventing accidental injection be achieved reliably without the need for a protective cap that can be forgotten like in conventional injection devices, but also a thin or small one can be used. Since it is easy and reliable to produce, it greatly contributes to the spread of aerosol injection containers in daily life.

[Brief explanation of drawings]

Figure 1 is a longitudinal sectional view of one embodiment of this invention;
The figure is a half-cut vertical cross-sectional view of the base material, FIG. 3 is a bottom view, and FIG. 4 is a cross-sectional view taken along the line XX in FIG. 1. 1 is the container body, 11 is the narrow neck, 12 is the ring shelf, 13
is a mouth wall, 2 is a valve housing, 21 is a mouth rim, 22 is a lock pin, 23 is a presser foot, 3 is a valve stem, 31 is an elastic valve seat, 32 is a shaft hole, 33 is a side hole, 4 is a push button, 41 is the injection port, 42 is the ring groove, 43 is the shallow bottom surface,
44 is a deep bottom surface, 43a and 44a are groove end walls, 45 is a beak tube, 46 is an elastic plug, 47 is an annular chamber, 5 is a cap,
5a is a hem part, 51 is a packing, 6 is a valve spring, and 7 is a liquid suction pipe.

Claims (1)

[Scope of utility model registration request] A container body 1 having a cylindrical mouth wall 13 formed on the periphery of a ring shelf 12 that expands and extends above a narrow neck 11; a valve housing 2 having a lock pin 22 projecting upward from a part of the mouth rim 21; Elastic valve seat 31 fixed in valve housing 2
A valve stem 3 constitutes an injection valve by a side hole 33 that is inserted into the valve housing 2 and continues to a bottomed shaft hole 32 and an elastic valve seat 31, and an annular groove 42 that is provided with an injection port 41 and receives the lock pin 22. into the bottom surface, and lock the shallow bottom surface 43 and deep bottom surface 44 with the lock pin 2.
2, the push button 4 is formed adjacent to the annular groove 42 and is rotatably fitted into the valve stem 3 to connect the shaft hole 32 of the valve stem 3 to the injection port 41. The valve housing 2 is caulked and fixed to the ring shelf 12 by an annular base 5 that can be engaged with the lip 21 of the housing 2 from the outer periphery in a key-like manner, and when the push button 4 is rotated, the lock pin 22 is inserted into the shallow bottom surface 43 of the ring groove 42 or deep. A spray container for preventing accidental spraying, which is selectively located below the bottom surface 44 and has a shallow bottom surface 43 forming a stopper for the lock pin 22.