JPS5847965Y2 - delayed injection cap - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a cap that is attached to an aerosol container and performs delayed injection.

Conventionally, aerosol containers have been used to spray the contents through a stem using the pressure of a sealed gas, and because they are easy to use, they have been widely used in cosmetics, pharmaceuticals, detergents, and the like.

By the way, if the content to be sprayed is toxic to the human body, it is considered undesirable to use this aerosol container due to health and hygiene reasons, and it is considered undesirable to use an aerosol container when the content is poisonous to the human body. When spraying, caution should be taken not to point it at the human body and to use it when infants are not present.

On the other hand, there are some methods that use heat or water to spray special chemicals in the form of smoke in a sealed room to disinfect or kill insects. Since the workers were to leave, there was a risk that the workers would inhale the fumes.

This idea was devised in view of the above circumstances, and its purpose is to increase safety by spouting out the contents of the aerosol container after a certain period of time and allowing the worker to leave during this time, and to Easy attachment to the container consists in providing a cap that gets off.

This invention will be described in detail below based on embodiments shown in the drawings.

The reference numeral 1 in the figure is an aerosol container, and when a stem 2 is pushed into the aerosol container 1, the liquid contained therein is ejected by the action of a sealed gas or the like.

Fig. 1a shows the cap of this invention attached to the mountain curl part 3 of the aerosol container 1, and the button is shown, and the reference numeral 10 in the figure is a housing.
0 includes a flange 11 that is fitted into the mountain curl portion 3 of the aerosol container 1, and a hole 12 that is formed integrally with the flange 11 and is spaced apart from the stem 2 of the aerosol container 1 in the upper part of the figure.
a cylindrical portion 13 with A friction surface 17 (described later) formed between the upper and lower step portions 15 and 16
are provided for each.

Additionally, the reference numeral 20 in the figure is an operating member fitted into the housing 10, and the operating member 20 includes an O-ring 21 that is fitted in strong contact with the friction surface 17 of the housing 10. an operating barrel 24 that is constantly biased in the direction of operating the stem 2 of the aerosol container 1 by a spring 23 interposed between the circumferential groove 22 supporting the 00 ring 21 and the upper step 15 of the housing 10; The hole 12 of the housing 10 is attached to the outer periphery of the operation tube 24.
A stopper 25 that contacts the open end of the stem 2 to lock the movement of the stem 2 in the direction and releases the locking action when the stem 2 is fitted into the notch 14 of the housing 10; a nozzle 28 that is attached and has a plurality of injection holes 26 for diffusing the contents of the aerosol container 1 and that closes most of the upper end of the communication hole 27 in the operating barrel 24;
A through-hole 29 is attached to the lower end of the operating barrel 24 in the drawing, and presses the stem 2 of the aerosol container 1 when the operating barrel 24 is moved downward in the drawing, and communicates the hole in the stem 2 with the communication hole 27 in the operating barrel 24. An airtight ring 30 that makes airtight contact with the holding stem 2 is provided, respectively.

In the illustrated example, the friction surface 1 of the housing 10
7 and the O-ring 21 of the operating member 20, special consideration is given to the frictional resistance between the spring 23 and the O-ring 21 of the operating member 20f.
: The movement force and the frictional resistance force are almost balanced, and the movement of the operating member is completed after a certain period of time after a slight deviation occurs, and the O-ring 21 is in an elastically deformed state. It is stored.

Hereinafter, how to use the cap configured in this way will be explained.

1. As shown in FIG. 2, the camp is set so that the notch 14 and the stopper 25 are offset in the circumferential direction (the stopper 25 restricts the movement of the operation tube 24), and the desired contents are stored. Fit the housing 10 into the aerosol container 1, as shown in FIG. Evacuate the person to a safe place.

Next, the stopper 25 of the operating member 20 is rotated in the direction of the arrow in FIG. The worker also evacuates as the member 20 gradually enters the maggot puffer fish 10.

In the past, when the operating member 20 moved into the housing 10 and the airtight ring 30 of the operating member 20 moved the stems 1 and 2 of the aerosol container 1, the friction surface 17 and O'
The O-ring 21 is set according to the relationship between the contact frictional resistance force with the J-ring 21 and the biasing force of the spring 23. After this set time has elapsed, the O-ring 21 is attached to the housing 10 as shown in FIG.
The force of the O-ring 21, which had fallen into the lower step 16 and was elastically deformed at that time, presses the operating cylinder 24 in the direction of the stem 2, and the supporting force of the O-ring 21 by the friction surface 17 increases. As a result, the entire biasing force of the spring 23 acts on the operation tube 24, and as a result, the airtight ring 30 strongly pushes the stem 2, and the contents in the aerosol container 1 are pushed through the hole in the stem 2 and the through hole in the airtight ring. 29, it is injected in the form of a mist from the injection hole 26 of the nozzle 28 through the communication hole 27 of the operation cylinder 24 in order.

This injection action continues until the internal pressure of the aerosol container 1 becomes almost atmospheric pressure, and during this time the spring 23 is kept in the state shown in Figure 1 by the force pushing the operating barrel 24, and the operating member 20 is temporarily pushed upward. Even if an attempt is made to pull it back, the O-ring 21 supported by the circumferential groove 22 of the operating cylinder 24 abuts against the lower step 16 of the housing 10, resisting upward movement, and maintains the state shown in Figure 1.

Therefore, the notch 14 of the housing 10 and the operating member 2
If the aerosol container 1 is fitted with the stopper 25 of 0 and starts moving, it will not normally stop until the entire content of the aerosol container 1 is ejected.

The broken cap in the illustrated example can be used repeatedly by removing the flange 11 of the housing 10 from the crown 3 of the aerosol container 1 into which the entire contents have been injected and replacing it.

In the illustrated example, the friction surface 17 of the housing 10 and the O-ring 21 of the operating member 20 are brought into elastic contact with each other to allow slow movement, but the structure is not limited to this. The outer periphery of the operating tube 24 may be made to protrude to make elastic contact with the friction surface 17, or the housing 10 and the operating member 20 may be spirally fitted so that the operating member 20 slides along the threaded portion while rotating. It is also possible to do so.

As is clear from the above description, this invention moves the operating member 20 in the direction of pressing the stem of the aerosol container by fitting it onto the aerosol container and releasing the stopper, and slows down this movement by frictional contact. The aerosol container is a sliding type, and the stem is pressed after a certain period of time to spray the contents of the aerosol container, so even if the content is toxic to the human body, it can be sprayed only after the worker has left the room. It is possible to do this and increase safety,
In addition, by fitting the cap onto the aerosol container and spraying the aerosol container, handling becomes easy, and the structure of the cap is simple and the cost is low.

[BRIEF DESCRIPTION OF THE DRAWINGS] The drawings show one embodiment of this invention, and FIG. FIG. 2 is a plan view of the main part. 1...Aerosol container, 2...Stem,
10...Housing, 1γ...Friction surface, 20...Operation member, 21...O ring, 23...Spring, 25... ... Stopper, 26 ... Injection hole, 28 ... Nozzle, 30 ... Airtight ring.

Claims (1)

[Scope of utility model registration request] The housing is fitted into the aerosol container and has a friction surface on its inner periphery.The housing is fitted into contact with the friction surface of the housing, and is constantly biased in the direction of operating the stem of the aerosol container, thereby locking movement relative to the housing. and an operating member having a stopper for discharging the contents of the aerosol container, and an operating member having an injection hole that communicates with the hole in the stem to discharge the contents of the aerosol container.