JPH0536106B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a sprayer, particularly a small sprayer suitable for portable use, and more specifically, to a sprayer that prevents fungi from entering the container, thereby preventing the infiltration of preservatives and anti-bacterial agents. The present invention relates to a sprayer that can maintain a sprayed liquid (hereinafter simply referred to as liquid) in a container in a sterile state without using a liquid.

[Prior Art] In addition to the one described in Japanese Utility Model Application Publication No. 59-115460, various other sprayers are known as sprayers that spray liquid using suction/pressure means.

[Problems to be Solved by the Invention] However, these conventional sprayers do not have a structure that prevents fungi from entering, so fungi such as miscellaneous bacteria may enter from the nozzle hole through the liquid passage or from the air intake part along with the air. It has the disadvantage that it can enter the container and contaminate the liquid inside the container.

For this reason, when using sterile storage substances such as cosmetics and pharmaceuticals as liquids, additives such as various preservatives and anti-bacterial agents are mixed into the liquid itself or coated on the inner walls of containers to prevent contamination. There were some shortcomings that I had to overcome.

[Objective of the Invention] Therefore, the object of the present invention is to provide a sprayer that can keep the liquid inside the container in a sterile state without using preservatives or anti-bacterial agents by preventing the intrusion of fungi into the container. It is about providing.

[Means for Solving the Problems] The present inventor has made extensive studies to achieve the above object, and as a result, has arrived at the present invention.

That is, the sprayer according to the present invention is a sprayer that sucks up liquid from a liquid container by a suction means and sprays it from a nozzle hole by a pressurizing means, in which a hydrophilic fungus protection filter is provided in the liquid passage and an air intake is provided. It is characterized by a hydrophobic fungus protection filter installed at the entrance.

[Function] According to the present invention, since a hydrophilic fungi protection filter is provided in the liquid passage and a hydrophobic fungi protection filter is provided in the air intake, fungi can be prevented from entering the container from the liquid passage and the air intake. Therefore, the liquid in the container can be kept sterile without using preservatives, anti-bacterial agents, etc.

In addition, Utility Model Application No. 59-115460 cited as the prior art
No. 1 discloses a technology in which a filter is provided in the liquid passage near the nozzle hole, but this filter is for preventing clogging, and moreover, a filter is provided in the air intake part such as the gap in the container mounting part. Therefore, the invasion of fungi cannot be prevented as in the present invention.

[Example] Hereinafter, an example of the present invention will be described based on the accompanying drawings.

FIG. 1 is a sectional view showing an example of a small-sized sprayer according to the present invention.

In the figure, 1 is the main body of a small sprayer, and 2 is a container containing the liquid to be sprayed. The sprayer main body 1 is attached to the mouth of the container 2 by means of a device part 13. Examples of attachment means include fitting, screw fixing, adhesion, etc., but in order to keep the liquid in a sterile state, it is preferable to make it non-removable so that the user cannot open it.

In this embodiment, a piston 4 and a cylinder 5 are used as the suction means for sucking up the liquid from the container 2 and the pressurization means for spraying it from the nozzle hole 3.

First, the suction will be explained. First, the head section 6 is pushed down, and the pushed down head section 6 is pushed back by the spring 7. At this time, the piston 4 connected to the head part 6 via the sliding pipe 8 reduces the pressure inside the cylinder 5 and the valve 9 is closed, so that the liquid in the container 2 is passed into the cylinder 5. It passes through a pipe 10 and a valve 11 and is drawn up into the cylinder 5. At this time, external air is taken into the container 2 from the air intake section 12 provided with the hydrophobic fungus protection filter 14 in an amount equal to the amount of liquid sucked into the cylinder 5 .

Next, pressurization will be explained. By pushing down the head portion 6, the piston 4 pressurizes the inside of the cylinder 5 filled with liquid due to the suction. When the pressure is applied, the valve 11 is closed, so the pressurized liquid passes through the opened valve 9, the sliding pipe 8, and the head section 6 provided with the hydrophilic fungi protection filter 15, and is sprayed from the nozzle hole 3. be done.

Note that in this specification, the air intake section 12 refers to
This refers to all the places where air is taken into the container from the outside, and includes, in addition to the air intake part 12 shown in the figure, the gap between the mounting part 13 and the sliding part of the sliding tube 8, and the opening part of the mounting part 13 and the container 2. This refers to all locations where air can enter the container 2, such as gaps in the container.

Furthermore, in this specification, the liquid passage refers to all the passages through which liquid passes from the liquid passage pipe 10 to the nozzle hole 3, and therefore includes the valve 10, cylinder 5, etc.
The inside of the piston 4, the inside of the valve 9, the inside of the sliding tube 8, and the inside of the head part 6 are also all referred to as liquid passages.

The hydrophobic fungus protection filter 14 may be installed in all of the air intake portions 12, but it may be installed at the mouth of the container 2 as shown in the figure.
It is preferable to provide it so as to be in contact with the surrounding area.
This is because it is the final path for air to enter into the container 2 from the outside, so all the air passes through this path, so you can omit the others.Moreover, even if the container 2 is tipped over, it can be installed in this position. If it is, the liquid will not leak out.

As the hydrophobic fungus protection filter 14, various filters can be used as long as they are hydrophobic and can prevent passage of fungi such as miscellaneous germs, but preferably a hydrophobic Teflon membrane is used.

The installation location of the hydrophilic fungus protection filter 15 is not limited to any location or number as long as it is the liquid passage, and it may be installed near the nozzle hole 3 in the head portion 6 as shown in the figure, and the liquid passage pipe 10 itself may be installed. It is preferable to use a hydrophilic fungi protection filter in order to prevent fungi from entering from the outside and into the liquid within the container 2. Of course, it may be located at only one location (for example, the liquid passage pipe 10 itself or near the nozzle hole 3), or it may be located at three or more locations (for example, the inside of the piston 4 is added to the above two locations). Note that a pipe body may be used as the liquid passage pipe 10, and a hydrophilic fungus protection filter may be provided at any position within the pipe body.

As the hydrophilic fungi protection filter 15, various filters can be used as long as they are hydrophilic and can prevent passage of fungi such as miscellaneous bacteria, but preferably a hydrophilic Teflon membrane (0.45 μm) is used. .

In this embodiment, as described above, the piston 4 and cylinder 5 are used as the atomizer body 1, but the present invention is not limited to this, and although there is no difference in the basic configuration as a pressurizing/suction means, the head Instead of a part, pressure and suction are applied using a handle lever, or a bag-like body is pressurized and suctioned, and the bag-like body is compressed by crushing it with a finger, and the collapsed bag-like body is pressurized. Various types of pressurization, such as suction by restoring force.
A suction means can be used.

[Effects of the Invention] According to the present invention, a sprayer is provided that can keep the liquid in a container in a sterile state without using preservatives, anti-bacterial agents, etc. by preventing fungi from entering the container. can do.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing an embodiment of a small sprayer according to the present invention. DESCRIPTION OF SYMBOLS 1...Small sprayer main body, 2...Container, 3...Nozzle hole, 4...Piston, 5...Cylinder, 6...Head part, 7...Spring, 8...Sliding pipe, 9...Valve, 10...Liquid passage pipe, 11... Valve, 12... Air intake part, 13... Mounting part, 14... Hydrophobic fungus protection filter, 15... Hydrophilic fungus protection filter.

Claims (1)

[Claims] 1. In a sprayer that sucks up liquid from a liquid container using suction means and sprays it from a nozzle hole using pressurizing means, a hydrophilic fungus protection filter is provided in the liquid passage, and a hydrophobic fungus protection filter is provided in the air intake part. A sprayer characterized in that: