JPH01249151A - Device for opening spray valve - Google Patents

Abstract

PURPOSE:To perfectly extract the gas remaining in a can by utilizing the frictional force generated between a spray can and a stopper annularly provided to a cap to continuously press the head of an injection port with a push cap incorporated in the cap. CONSTITUTION:The frictional force generated between the spray can (a) and the stopper 4 annularly provided to the cap 1 is utilized to continuously press the head of the injection port (b) with the push cap 2 incorporated in the cap 1. The cap 1 and the push cap 2 are separately formed, and only the push cap 2, for example, is placed in the recess at the bottom of the can (a). As a result, the spray valve can be easily and successively opened, hence the gas remaining in the can can be perfectly extracted, and trouble after the can is discarded can be eliminated.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a device for opening a spray valve of a portable spray can for spraying chemicals, paints, cosmetics, etc., and more specifically, when disposing of the spray can, This invention relates to a spray valve opening device for communicating the inside and outside of a can and completely discharging residual contents (hereinafter referred to as residual gas) inside the can.

BACKGROUND OF THE INVENTION It is well known that a large number of spray cans filled with various contents have been provided, and methods and means for completely removing residual gas from these spray cans are well known. It is common knowledge that nothing has been taught about it.

Conventional or recently known techniques include a technique in which a nail or the like is placed on the can body and then struck with a hammer or the like to make a hole and extract the residual gas; There is a technique in which the cylindrical part is compressed and a hole is made in the can body using the inside of the tool or a pin-like object provided to extract residual gas.

Problems to be Solved by the Invention When disposing of a spray can, regardless of whether it is unused or used, the gas remaining inside must be completely removed, and then the can is disposed of or is being disposed of. Ideally, the waste should be disposed of in such a way that residual gas can completely escape, and the current situation requires that such gentle measures be taken. This is because a company that collects such garbage was recovering discarded spray cans when the residual gas that leaked out for some reason ignited and caused an explosion, resulting in burns, and young people were injured during bonfires. There have been many incidents in various places where spray cans are thrown in and exploded, hitting children who were playing nearby in the head, resulting in their deaths. However, these spray cans that are currently available do not have any measures taken to prevent accidents, and the only technology known in the past is the technology described in the above-mentioned conventional technology. It just is.

(1) Among the conventional techniques mentioned above, regarding the technique of drilling with nails and hammers and extracting residual gas, the posture of the can body is unstable due to its cylindrical shape, making it difficult for even adult males to drill holes. This is the technology involved.

(2) Regarding the technique of drilling using a curved pressure tool, there is the inconvenience that the tool is separate from the can body and cannot be drilled if the user forgets where it is or if the powder is lost.

(3) In both of the above two techniques, there is a risk that residual gas may blow out and scatter during drilling, and the drilling must be performed in a bag made of polyethylene or the like prepared in advance. Particularly when there is a large amount of residual gas, or when the contents are dangerous, it is necessary to take sufficient precautions to prevent scattering.

Means for Solving the Problems The present invention eliminates the drawbacks of the prior art, and provides a method for removing the spray nozzle and/or injection port (hereinafter referred to as injection port) of the spray can when abrading the spray can. This invention automatically releases the residual gas in the can to the outside by automatically pressing and holding the valve to open the valve, and when the lid is used under normal conditions, the injection port is This technology acts as a safety cap to prevent the can from being pushed down accidentally, and when the can is disposed of, a separately built-in presser lid is operated and the nozzle is continuously pressed to remove residual gas. , spray can body (a)
This is a spray valve opening device that uses the frictional force generated between the stopper 4 and the stopper 4 provided on the lid 1 to keep pressing the injection port (b) with the lid 2. is a spray valve opening device built into the lid 1.

The lid 1 and/or the pusher lid 2 are each molded separately,
These may be combined into one body, or the two may be molded at the same time and already assembled into one body.

In addition, if the size of the lid 1 is limited due to reasons such as packaging of the can body (A), the present invention can be implemented by storing only the pusher lid 2 into the recess 14 at the bottom of the can body (A). be.

The present invention will be described in detail below with reference to the drawings. Reference numeral 1 is a lid whose original purpose is to protect the injection port (b). 2
is a press-on lid whose purpose is to keep the nozzle (b) pressed when disposing of the spray can. Reference numeral 3 denotes a reverse taper provided so that the pusher lid 2 fits smoothly into the lid 1, and 4 is a stopper for fixing the lid 1 and the spray can body (A).

5 is a small hole, which has the purpose of discharging residual gas from the lid 1;
At least one or more are provided. In particular, if there is a risk that the inside of the lid 1 may be sealed by the can body (A) and the stopper 4, the small hole 5 must be made. 6
is a collar, which is provided for the purpose of fixing the lid 1 and the push lid 2 in the correct position. Reference numeral 7 indicates a hinge, which is a technique required when folding the pusher lid 2 to the inside of the lid 1. The groove numbered 8 is the push lid 2.
It is provided for the purpose of being held between the split grooves 8 when it is bent inward. Numeral 9 is a large hole, which plays the role of pushing out the lid 2 from the lid 1, and numeral 10 is the tip, which is a technique that is applied so as not to close the injection port (b). Reference numeral 11 denotes a notch into which the rib 12 fits, and the press lid 2 is fixed to the lid 1 by the rib 12 firmly fitting into the notch 11. 13 is a slide groove for moving the lid 2 to a predetermined position, and 14 is a recess formed in the bottom of the can body (A).

The part of the can body (A) where the lid 1 of the present invention is fixed in contact with the can body (A) is not particularly specified, and for example, the part outside or inside the connection part between the spray valve and the main body (the part 1
(see Figure 7).

Therefore, there is no limitation at all as long as it is possible to obtain a frictional force that continuously pushes down the injection port (b).

The lid 1 and the push lid 2 in the present invention are made of synthetic resin, such as polyethylene, polystyrene, polypropylene, nylon, polyester, acrylic, etc. Using a resin selected from these parts, the lid 1 having an appropriate diameter and depth is molded, and the stopper 4 to be attached to the lid 1 is molded into the can body ( This is determined empirically depending on which part of (a) it will fit into. Next, a presser lid 2 is formed that fits on the inner bottom of the lid 1. Its inner diameter is determined by the outer diameter of the injection port (B), and its overall height is determined by the height of the injection port (B). It is decided.

In normal use, the lid 2 is used with the opening opening facing the injection port (b), but when disposing of the spray can, the lid 2 can be turned in the opposite direction and the spray can be sprayed. The mouth (b) and the opening/closing mouth are opposite to each other. In order to ensure smooth fitting at that time, this technique provides a reverse taper on the outer diameter starting from a half of the overall height of the pusher cover 2.

In the present invention, under normal use conditions, the pusher lid 2 is securely fitted to the lid 1 so that it will not come loose. This rate indicates that it is difficult to remove the pusher cover 2 without removing it. However, in the present invention, in order to eliminate this drawback, the outer part of the pusher cover 2 is attached to the bottom of the cover 1. Large hole 9 smaller than the diameter
If there is a risk that the contact surface of the push cap 2 may close the injection port (b), drill a small hole 5 in the corresponding contact area. Set up or use the tip of the sword (
Contains sword-like ribs. The same applies hereafter) to form the injection port (b).
This removes the closure of

Next, regarding the case where the lid 1 and the pusher lid 2 are integrally molded at the same time, this method is the most economical technique since one part of the lid 1 is formed into the pusher cap 2. Next, to explain an example, there is a lid 1 inside the bottom of the lid 1 mentioned above.
In order to make it easier to cut and remove, an elliptical cylinder having an appropriate outer diameter is formed (Figs. 3 and 4) to form the lid 2, and a rib 12 is provided on the side surface in the long diameter direction of the lid 2. This is a technique in which a notch 11 into which the tip of the rib 12 fits is provided in the short diameter direction of the hole in the lid 1. When in use, the presser lid 2 is removed from the lid 1, and the rib 12 is securely inserted into the notch 11. It should be fixed and implemented.

On the other hand, if the size of the lid 1 is limited due to reasons such as packaging of the can body (A), and it is impossible to integrate the pusher lid 2, the lid 2 may be installed at the bottom of the can body (A). The invention is also fully capable of being implemented by being stored in the recess 14.

Example 1 Example 1 Using polyethylene resin, mold a lid 1 to be joined (joined) at the outer side of the upper closing part of the can body (A) (see Fig. 1).
Therefore, even when the pusher cover 2 is fitted, its inner and outer diameters are as follows.
The cover 2 is formed with enough room so that it can be fitted without coming into contact with the injection port (b).

Similarly, the height is also molded with the same consideration (I will omit the description of the dimensions of each part because it would be complicated). Dimensions not specified are approximately 1/1 of the measured dimensions in the drawing.
It is 1 to 1/1.5. ) Next, using the same resin, mold the lid 2 that fits into the inner diameter of the lid 1.The height of the lid 2 is the same as when the lid 1 and the lid 2 are completely assembled. The positional relationship between the injection port (b) and the pusher lid 2 when capping in a) is as follows:
It was set so that the upper end of the injection port (B) penetrated into the lid 2 by about 2 mm, and the outer diameter taper of the lid 2 was symmetrically reversed taper at the position of 1/2 of the height. ing.

A large hole 9 having a diameter of approximately one-half of the outer diameter is provided in the upper part of the second embodiment lid 1.
A small hole 5 with a diameter of 1 mm is provided in the center of the lid 2.
This was carried out in the same manner as in the first embodiment except that the holes were drilled.

Third Embodiment An elliptical cylindrical pusher lid 2 that connects with the lid 1 in at least two places is integrally formed on the upper part of the lid 1.
3), a notch 11 of an appropriate size is formed in the minor axis direction, and two ribs 12 are provided in the major axis direction of the pusher cover 2 so that the notch 11 fits into the Rib 12 is notch 11
When the bottom of the cover 2 is securely fitted into the nozzle (
This was carried out in the same manner as in the first embodiment, except that (b) was adjusted so as to be pushed down by about 2 mm.

Fourth Embodiment At the center of the upper inner surface, the inner diameter is larger than the outer diameter of the injection port (B), and when capping, the distance between the upper inner wall and the injection port (B) is at least 1 mm or more. A cylindrical holding part with a diameter of 1.5 mm is formed in the center.
A lid 1 having a small hole 5 formed therein is formed, and further separately,
It has an outer diameter that fits into the inner diameter of the cylindrical holding part, a small hole 5 with a diameter of 1 mm is bored in the center, and the height is such that it fits into the cylindrical holding part and is capped. In this state, a pusher lid 2 is molded to a height that pushes down the injection port (B) by approximately 2 mm, and the pusher cap 2 is further placed in the recess 14 at the bottom of the can body (A). Except for the above, the process was carried out in the same manner as in the first embodiment.

Effects of the Invention The present invention can be carried out as described above, and by turning over the pusher lid 2 incorporated in the lid 1 and using it, the spray valve can be easily kept open and no residue remains inside. It is a technology that can completely remove (release) the gas that is in the air, and its structure is very simple, even children can easily operate it, there are no troubles, and it is economical. However, it can be provided at low cost.

The present invention has the above-mentioned effects and is an important technology that is safe and highly reliable.

[Brief explanation of the drawing]

Fig. 1 is an enlarged sectional view of the first embodiment, Fig. 2 is an enlarged sectional view of the second embodiment, Fig. 3 is an enlarged sectional view of the third embodiment, and Fig. 4 is an enlarged sectional view of the third embodiment.
FIG. 5 is an enlarged sectional view of the fourth embodiment, and FIGS. 6 to 13 are enlarged sectional views of other embodiments. 1...Lid, 2...Pushing lid, 3...Reverse taper, 4 Stopper,
5...small hole, 6...tsuba, 7...hinge, 8...split groove, 9...large hole, 1
0... Sword tip, 11... Notch, 12... Rib, 13... Slide groove, 14... Recess.

Claims (4)

[Claims] (1) By using the frictional force generated between the spray can body (A) and the stopper 4 provided around the lid 1, the head of the spray nozzle (B) can be kept pressed with the pusher lid 2. This spray valve opening device is characterized in that the opening device for the spray valve is constructed in such a manner that it is possible to open the spray valve, and further, a pusher lid 2 is incorporated into the lid 1. (2) The spray valve opening device according to claim 1, wherein the lid 1 and/or the push lid 2 are each molded separately. (3) The spray valve opening device according to claim I, in which the lid 1 and/or the push lid 2 are molded together and at the same time. (4) A spray valve opening device in which the pusher lid 2 is housed in the recess 14 at the bottom of the spray can.