JP6937066B1 - Ventilated waterproof body and mixing container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a breathable waterproof body which can be easily manufactured. SOLUTION: A ventilation waterproof body is composed of a main plug body 11 and a sub plug body 12. The main plug body has a tubular plug body 1 and a thin film 3, and the tubular plug body and the thin film that closes the hole 2 of the plug body are manufactured as an integral part of rubber molding. The thin film has a large number of laser-machined micropores 4 for ventilation and waterproofing. The laser-machined fine hole is a tapered hole having a small diameter on the high-pressure side. The auxiliary plug body has a ventilation recess 14 that communicates the inside and the outside of the main plug body. [Selection diagram] Fig. 1

Description

The present invention relates to a ventilated waterproof body and a mixing container.

Conventionally, as a ventilation waterproof body provided in a ventilation hole or the like that communicates between the closed space of the housing and the outside, as shown in FIG. 16, a ventilation waterproof filter 40 made of a large number of ultrafine non-woven fibers is used as a tubular stopper. Those attached to 41 are known (see, for example, Patent Document 1 and Patent Document 2).

Japanese Unexamined Patent Publication No. 2014-123625 Japanese Patent No. 6667864

However, in the breathable waterproof body described in Patent Document 1, since the breathable waterproof filter made of a large number of ultrafine non-woven fabric fibers and the rubber stopper are bonded with an adhesive, an adhesive area of a predetermined size or more is required. Therefore, it was not possible to manufacture a very small ventilation waterproof body. Further, since the ventilation waterproof filter 40 is adhered to the ventilation plug or the like with an adhesive, there is a problem that the ventilation waterproof filter 40 is peeled off.
Further, Patent Document 2 is a breathable waterproof body previously proposed by the present applicant. By inserting a small breathable waterproof filter 40 made of a non-woven fabric into a cavity of a mold and vulcanizing raw rubber by heating and pressurizing. It was to be integrated. The smaller the diameter (smaller) of the ventilation waterproof body (for example, when trying to manufacture a ventilation waterproof body with a hole diameter of 1 mm for a tubular stopper), the more the handling of ultrafine non-woven fiber small pieces during work and the setting in the mold. Is extremely difficult. That is, it is difficult to set the hole opening in the cavity at a predetermined position to be closed with high accuracy in a regular posture. Therefore, it is difficult to manufacture a very small ventilation waterproof body, and there is a possibility that the quality may vary.

Further, since the ventilation waterproof filter of the conventional ventilation waterproof body is made of small fine non-woven fabric fibers, there is a possibility that the non-woven fabric fibers may be separated and mixed, and it is difficult to apply it to products related to the food industry and medical treatment. ..

Therefore, an object of the present invention is to provide a breathable waterproof body that can be efficiently manufactured while maintaining stable and high quality. Another object of the present invention is to provide a breathable waterproof body having stable ventilation and waterproof characteristics during use, which can be maintained for a long period of time, is less likely to be damaged, and has a long life. Furthermore, another purpose is to make the ventilation waterproof body more compact than before. Furthermore, another object is to provide a breathable waterproof body (and a mixing container) that can significantly reduce the generation of impurities such as fragments of ultrafine fibers and is suitable for various devices in the food industry and medical fields.

In the ventilation waterproof body according to the present invention, the tubular plug body and the thin film that closes the pores of the plug body are integrated with rubber molding, and the thin film has a large number of laser-machined micropores for ventilation waterproofing. have a, the laser processing micropores, in which the high-pressure side is a tapered hole whose diameter.

The mixing vessel according to the present onset Ming, a tubular plug body, and a thin film to close the bore of said closure member, there is a rubber molded integrally, a number of laser processing fine for breathable waterproof to the thin film The above-mentioned in an unmixed state in which the ventilated waterproof body having holes is fixed to the through holes formed in the bottom wall of the mixing container and the liquid and the powder to be mixed are charged into the main body of the upper opening-shaped mixing container. Pressurized air is supplied from below the ventilation waterproof body fixed to the bottom wall of the mixing container, and the liquid and powder are separated by the fine air that passes through the laser-processed micropores and rises inside the mixing container body. Is configured to be agitated and mixed.

According to the breathable waterproof body of the present invention, it is possible to maintain (exhibit) stable breathable waterproof characteristics, and it is also possible to make the size smaller than before. In addition, it is less likely to be damaged and has a long life. Furthermore, it was possible to prevent the generation of impurities (broken pieces of ultrafine fibers). A small breathable waterproof body can be manufactured. In addition, stable and high quality products can be manufactured. It can also be used in the food industry and medical fields.

Further, according to the mixing container of the present invention, it can be used as it is without the trouble of transferring to another container after stirring.

It is sectional drawing which shows 1st Embodiment of this invention. It is an enlarged cross-sectional side view of a main part. It is an end view of the main part AA of FIG. It is a simplified sectional side view which shows the manufacturing method of the ventilation waterproof body of this invention. It is a graph which shows the relationship between the number of micropores and the air volume. It is a figure which shows the 2nd Embodiment of this invention, (A) is the sectional side view, (B) is the CC end view of FIG. 6 (A). It is sectional drawing which shows the 3rd Embodiment of this invention. It is sectional drawing which shows the 4th Embodiment of this invention. It is a top view which shows the reference example which is closely related to this invention. FIG. 9 is an enlarged cross-sectional view taken along the line BB of FIG. It is a simplified cross-sectional view which shows an example of the use state of the reference example. It is a simplified cross-sectional view which shows the other example of the use state of the reference example. It is a simplified cross-sectional view which shows the other example of the use state of the reference example. It is a simplified cross-sectional view which shows an example of the use state of another reference example which is closely related to this invention. It is a simplified cross-sectional view which shows the other example of the use state of another reference example. It is a cross-sectional side view which shows the conventional example, (A) is the whole cross-sectional side view, (B) is the main part enlarged cross-sectional side view.

Hereinafter, the present invention will be described in detail based on the illustrated embodiments.
1 to 3 show a first embodiment of the present invention. This ventilation waterproof body is composed of a main plug body 11 and a sub plug body 12. The main plug 11 has a tubular plug 1 and a thin film 3, and the tubular plug 1 and the thin film 3 that closes the hole 2 of the plug 1 are integrated with rubber molding. The thin film 3 is integrally provided on _one end surface side in the axial direction J 1 of the tubular plug body 1. The breathable waterproof body is made of various synthetic rubbers such as silicon rubber and nitrile rubber. In particular, since silicone rubber has good durability and is gentle on the human body, it is preferably made of silicone rubber. By simply inserting only the main plug 11 which is easily elastically deformed into the hole 2, and then inserting the sub plug 12 into the main plug 11, the main plug 11 is elastically expanded and deformed, and the hole is formed. The outer peripheral surface of the main plug 11 can be strongly and elastically pressed against the inner surface of 2 to be firmly fixed. The auxiliary plug body 12 has a ventilation recess 14 that communicates the inside and the outside of the main plug body 11.

The thin film 3 has a large number of laser-processed micropores 4 for ventilation and waterproofing. The laser-machined fine hole 4 is a tapered hole having a small diameter on the high-pressure side. The diameter of the laser-machined micropore 4 (referred to as the minimum diameter of the tapered hole) is set to 3 μm or more and 30 μm or less. In particular, it is preferably 10 μm or more and 30 μm or less. If the diameter is less than the lower limit, it is difficult to form by laser processing and the air permeability is lowered. If the diameter exceeds 30 μm, the waterproof property will decrease. Therefore, it is better to set the above diameter in consideration of the air volume and the waterproof property (level).

The density of the laser-machined micropores 4 is set to ^{10 pieces / mm 2} or more and 60 pieces / mm ^{2 or less.} In particular, it is desirable that the number is 10 pieces / mm ² or more and 30 pieces / mm ^{2 or less.} If the density of the laser-processed micropores 4 is ^{less than 10 pieces / mm 2} , the air permeability is lowered. When the density of the laser-processed micropores 4 exceeds the upper limit value, the waterproof property is lowered and the strength of the thin film 3 is weakened. Therefore, the above density may be set in consideration of the air flow rate, the waterproof property (level), and the strength of the thin film 3.

The thickness dimension T of the thin film 3 is set to 0.05 mm ≦ T ≦ 0.6 mm. Preferably, the thickness dimension T of the thin film 3 is set to 0.2 mm ≤ T ≤ 0.5 mm. When the thickness dimension T of the thin film 3 is T <0.05 mm, the strength of the thin film 3 becomes weak. When the thickness dimension T of the thin film 3 is 0.6 mm <T, the time required to form the laser-machined micropores 4 becomes longer, and the pore diameter on one surface side of the thin film 3 and the other surface side of the thin film 3 become longer. The difference from the hole diameter of is large.

An example of a method for forming the laser-machined micropores 4 will be described. As shown in FIG. 4, the thin film 3 is irradiated with laser light by a laser processing machine in a direction orthogonal to the thin film 3 to melt the thin film 3 to form laser-processed micropores 4. Each laser-processed micropore 4 is sequentially formed (for example, a linear feed is intermittently given to the laser irradiation portion in the direction of arrow E in FIG. 4). The time required to form one laser-machined micropore 4 is, for example, 0.025 seconds. In this case, for example, 300 laser-machined micropores 4 can be formed in just 7.5 seconds.

FIG. 5 shows the relationship between the number of micropores (laser-machined micropores 4) and the air flow rate when the outer diameter of the thin film 3 is 3.5 mm (area is 9.6 mm ^2). The pore diameter of the micropores was 20 μm, and a predetermined pressure was applied from one side of the thin film 3 for measurement. As the number of laser-machined micropores 4 increases, the air flow rate increases (in a curved shape), but as can be seen from FIG. 5, when the number of micropores 4 is less than 100, the air flow rate suddenly decreases. , 100 or more is desirable. On the contrary, if the number exceeds 250, the slope becomes gentle (approaches horizontal), so 250 or less is desirable.
When emphasizing water resistance, set the micropore diameter small (for example, 3 μm to 10 μm) to increase water resistance and increase the number of micropores 4 (for example, 30 / mm ^{2 to} 60 / mm ² ). By doing so, it is better to improve the ventilation performance and balance both water resistance and ventilation performance.

FIG. 6 shows a second embodiment. A covering cover 36 having a ceiling wall portion 34 that covers the thin film 3 of the plug body 1 at a predetermined interval H and a tubular peripheral wall portion 35 projecting downward from the ceiling wall portion 34 is attached. _{The covering cover 36 has a hanging leg portion 37 for forming a ventilation portion G 37} between the ceiling wall portion 34 and the upper surface 1A of the plug body 1 in a hanging shape from the ceiling wall portion 34. The hanging leg 37 has at least one notch. The plug 1 has a plurality of (for example, three) ridges 38 on the outer peripheral surface 1B. The ridge 38 is pressed against the inner peripheral surface 39 of the covering cover 36 and is removed. As shown in FIG. 6B, the ventilation portion G ₃₈ formed between the plurality of ridges 38 and the ventilation portion G ₃₇ are in communication with each other, and the ventilation portion G ₃₇ is a ventilation portion G. _It communicates with the outside through 38. Other configurations are the same as in the first embodiment.

FIG. 7 shows a third embodiment. The thin film 3 is provided at the center of the tubular plug 1 in the axial direction J _{1 (center height position).} There is an advantage that the thin film 3 is not easily scratched during use. Other configurations are the same as in the first embodiment.

FIG. 8 shows a fourth embodiment. The tubular plug 1 and the thin film 3 that closes the hole 2 of the plug 1 are integrated with rubber molding, and a large number of laser-processed micropores 4 for ventilation and waterproofing are formed in the thin film 3 (FIGS. 1 to 3). The ventilation waterproof body S on which (see) is formed is a mixing container fixed to a through hole 9 formed in the bottom wall portion 8 of the mixing container. The ventilation waterproof body S has the same structure and configuration as that of the first embodiment. The upper opening-shaped mixing container main body 10 has a bottom wall portion 8 and a tapered wall 15 connected to the periphery of the bottom wall portion 8, and the lower half portion of the mixing container main body 10 is formed in a substantially inverted conical shape. ..

In the unmixed state in which the liquid and the powder to be mixed are charged into the upper opening-shaped mixing container main body 10, pressurized air is supplied from below the ventilation waterproof body S fixed to the bottom wall portion 8 of the mixing container. The liquid and the powder are agitated and mixed by the fine air that passes through the laser-processed micropores 4 and rises in the mixing container main body 10. Silicone rubber has good heat resistance and can withstand low temperatures, so it is suitable as a material for the breathable waterproof body S.

9 and 10 show reference examples closely related to the present invention. The ring body 5 with a closed ring and the thin film 3 stretched on the inner peripheral side of the ring body 5 are integrated with rubber molding. The thin film 3 has a large number of laser-processed micropores 4 for ventilation and waterproofing. Reference numeral 13 indicates an annular reinforcing portion. Other configurations are the same as in the first embodiment. The annular reinforcing portion 13 may be omitted, and the number of micropores 4 can be increased. 9 and 10 are so-called "packing type", and therefore can also be called "ventilated waterproof packing".

Figure 11 shows the example of a use state of the reference example. The ventilation waterproof body is attached to the connecting portion 33 of the two members 28 and 29 forming the continuous ventilation passage 32. Specifically, between the two plane portions 7 and 7 facing in parallel that receive the pressing force F from the axial direction J ₅ (the lower surface 17 of the upper member 28 and the annular notch formed in the lower member 29). It is interposed between the bottom surface 20 of the recess 19).

FIG. 12 shows another example of the usage state of the reference example. It is used by being arranged between the storage container 21 and the lid portion 22 (between the upper surface 23 of the storage container 21 and the ceiling surface 25 of the notch recess 24 formed in the lid portion 22).

FIG. 13 shows yet another example of the usage state of the reference example. It is arranged on the inner peripheral surface 27 side of the pipe connection portion 26.

Other reference examples closely related to the present invention will be described. The basic configuration is the same as that of the ventilation waterproof body of the reference example shown in FIGS. 9 and 10, except that the reinforcing portion 13 is not formed.

FIG. 14 shows an example of the usage state of another reference example. Used inside hearing aids.

FIG. 15 shows another example of the usage state of the other reference example. It is interposed between the two members 28 and 29, and is interposed between the flat surface portion 30 of one member 28 and the semicircular groove 31 having a semicircular cross section formed in the other member 29.

The design of the present invention can be changed, and for example, the auxiliary plug body 12 of the first embodiment may be omitted.

As described above, in the present invention, the tubular plug 1 and the thin film 3 that closes the hole 2 of the plug 1 are integrated with rubber molding, and the thin film 3 is a large number for ventilation and waterproofing. Since it has the laser-processed micropores 4, the non-woven fabric is adhered to the rubber molded product, or the non-woven fabric is installed in the rubber molding mold and integrated by injection molding. There are many advantages (effects). That is, it is possible to manufacture an extremely small (for example, a thin film 3 having a diameter of 0.5 mm) breathable waterproof body. Furthermore, impurities such as fragments of conventional non-woven fabrics (ultrafine fibers) are not generated, and it can be used in the food industry and medical fields. Further, (in the case of a breathable waterproof body in which a composite film in which a non-woven fabric is adhered to a Teflon (registered trademark) film or the like is used as a breathable waterproof film, there is a problem that an ant bites the breathable waterproof film). Because it does not eat, it is possible to prevent being bitten by ants. Also, it has good durability. In addition, it has sound permeability and dust resistance. Therefore, for example, it is suitable as a component for earphones, hearing aids, and smartphones. It can be easily manufactured and the manufacturing cost is low. For example, it can be manufactured at a cost of one-third of the cost of manufacturing a separate body using a special ventilation waterproof filter as in the conventional case.

Further, the closed annular ring body 5 and the thin film 3 stretched on the inner peripheral side of the ring body 5 are integrated with rubber molding, and the thin film 3 is subjected to a large number of laser processes for ventilation and waterproofing. Since the micropores 4 are provided, the ventilation waterproof film (thin film 3) can be easily attached to the ventilation passage 32 at the connecting portion 33 of the two members 28 and 29 forming the continuous ventilation passage 32.

Further, since it is interposed between the two plane portions 7 and 7 facing in parallel to receive the pressing force F from the axial direction J _{5, the ventilation waterproof film (thin film 3) can be easily and surely attached.} In particular, the installation space is small. Moreover, it can be installed without reducing the ventilation area.

Further, since the laser-machined fine hole 4 is a tapered hole having a small diameter on the high-pressure side, the pressure resistance can be improved (compared to a tapered hole having a large diameter on the high-pressure side).

Further, since the diameter of the laser-processed micropore 4 is set to 3 μm or more and 30 μm or less, it can be easily formed by laser processing and has waterproof property.

Further, since the density of the laser-machined micropores 4 ^{is set to 10 pieces / mm 2} or more and 60 pieces / mm ² or less, it is possible to have appropriate air permeability and secure the strength of the thin film 3.

Further, the tubular plug 1 and the thin film 3 that closes the hole 2 of the plug 1 are integrated with rubber molding, and a large number of laser-processed micropores 4 for ventilation and waterproofing are formed in the thin film 3. The ventilated waterproof body S was fixed to the through hole 9 formed in the bottom wall portion 8 of the mixing container, and the liquid and the powder to be mixed were charged into the upper opening-shaped mixing container main body 10 in an unmixed state. Pressurized air is supplied from below the ventilation waterproof body S fixed to the bottom wall portion 8 of the mixing container, passes through the laser-processed micropores 4, and is generated by the fine air rising in the mixing container body 10. Since the liquid and the powder are configured to be agitated and mixed, the liquid and the powder can be used as they are without the trouble of transferring to another container after the agitation. For example, the mixing container itself can be used as a cup, which is convenient.

1 (tubular) plug 2 holes 3 thin film 4 laser processing fine pores
8 mixed-container bottom wall portion 9 through-hole
10 (Upper opening) Mixing container body
S through the gas-waterproof body

Claims (2)

The tubular plug body (1) and the thin film (3) that closes the hole (2) of the plug body (1) are integrated with rubber molding, and the thin film (3) is for ventilation and waterproofing. many laser processing micropores (4) possess,
A breathable waterproof body characterized in that the laser-machined fine hole (4) is a tapered hole having a small diameter on the high-pressure side. The tubular plug body (1) and the thin film (3) that closes the hole (2) of the plug body (1) are integrated with rubber molding, and a large number of the thin film (3) for ventilation and waterproofing. The ventilation waterproof body (S) in which the laser-machined micropores (4) of the above were formed was fixed to the through hole (9) formed in the bottom wall portion (8) of the mixing container.
In the unmixed state in which the liquid and the powder to be mixed are charged into the upper opening-shaped mixing container main body (10), from below the ventilation waterproof body (S) fixed to the bottom wall portion (8) of the mixing container. It is configured to supply pressurized air, pass through the laser-processed micropores (4), and stir and mix the liquid and powder by the fine air rising in the mixing container body (10). A mixing container characterized by the fact that it has been used.

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