JP2003062001A - Method for manufacturing cooling head gear - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method for manufacturing a cooling head gear having excellent adhesion strength capable of making sufficiently thick the latex layer of the base part of a cooling waterway. SOLUTION: The manufacturing method contains a process of covering a mold 7 with a mesh-like reinforced cloth 51, a process of pressing in a latex solution 92 between the mold surface and the back face of the reinforced cloth, at the same time applying a latex solution 91 on the surface of the reinforced cloth, passing the latex solution between the mold surface and the back face of the reinforced cloth on the surface of the reinforced cloth, and ejecting air 10 in the reinforced cloth, and a process of applying a latex solidifying solution from the surface of the reinforced cloth while filling the latex solution 92 between the mold surface and the back face of the reinforced cloth.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a cooling headgear, and more particularly to a method for manufacturing a cooling headgear in which cooling water is bent and which has a cooling water passage whose flow velocity can be variously changed.

[0002]

2. Description of the Related Art In recent years, when performing head surgery, it has become common to cool the head, especially the affected area, and insert a scalpel. As such a cooling device for cooling the head, a cooling headgear as shown in FIG. 5 is used.

As an example of such a cooling headgear, as shown in FIG. 6, the cooling water passage 11 formed in the cooling bladder 1 is formed by a partition wall W dividing the left and right into two left and right systems. It is developed by the person. The water supply port 2 and the drainage port 3 are formed on the crown 12 as a right water supply port 21, a right drainage port 31, a left water supply port 22, and a left drainage port 32.

The cooling water channel 11 hangs down from the crown 12 to expose the ears, as is apparent from the cutaway view in which the outer side surface 5 (see FIGS. 7 and 8) of the cooling headgear is removed in FIG. By the partition wall 13 formed up to the ear portion 4 penetrating the formed front and back sides, it is divided into an upstream water channel 111 that descends in the neck direction from the head and a downstream water channel 112 that circulates below the ear portion 4 and rises in the head direction. Has been done.

Therefore, the cooling water supplied from the water supply port 2 first enters the upstream water channel 111 and descends to the neck portion 14,
It wraps around below the ear portion 4, rises in the downstream water channel 112, and is discharged from the drainage port 3 formed in the crown 12.

The cooling water passage 11 is provided with a plurality of flow path control projections 113 for inhibiting the flow of the cooling water supplied from the water supply port 2. A plurality of the flow path control projections 113 are provided at equal intervals in the cooling water path 11 so as to block the water flow and form a row. Then, the mutual spacing of the series A of the flow path control projections 113 and the row B of the flow path control projections 113 adjacent to each other.
Are different (see FIG. 5).

In this embodiment, the distance between the rows A is larger than the distance between the rows B. This flow path control protrusion 11
3 is partially shown in FIG. 5 and is omitted, but is provided in the entire cooling water passage 11.

FIG. 7 is a cross-sectional view taken along the line AA of FIG. 5, that is, a cross-sectional view of the row A portion where the flow path control projections 113 have wide intervals.
FIG. 8 is a cross-sectional view of the row B in which the flow path control protrusions 113 are closely spaced. In FIG. 7 and FIG. 8, the cross-sectional views are drawn linearly, but in reality, the structure is curved so as to correspond to the shape of the head.

As is clear from FIGS. 7 and 8,
The outer side surface 5 of the cooling water passage 11 has a structure in which a latex layer 52 is provided on both sides of a reinforcing cloth 51, while the inner side surface 6 that fits the head portion is not provided with the reinforcing cloth 51,
It is only the latex layer 61. The flow path control protrusion 113 is shown in the recess X when viewed in cross section.

With this structure, the cooling water supplied from the water supply port 2 flows through the gap between the flow path control projections 113 while hitting the flow path control projections 113.
As described above, the space between the flow path control protrusions 113 is set in the row A,
Since B is different and columns A and B are adjacent to each other,
The water flow flows while bending in the gap between the flow path control protrusions 113. For this reason, the water will flow evenly through the cooling water passage 11, and the cooling efficiency will increase. Therefore, there is an advantage that the length of the cooling water passage 11 can be shortened.

When manufacturing such a cooling headgear, as shown in FIG. 1, the forming die 7 basically having a head shape is used. In this molding die 7, a wall 71 for forming the partition wall W is formed from the frontal region to the occipital region so as to divide the wall into right and left, and a wall 72 for forming the partition wall 13 is formed from the wall 71 at the top of the head. The molding die 7 in which the projection 73 for forming a part is formed is used.

As a result, the cooling water passages 11 of the left and right systems and the upstream water passage 111 and the downstream water passage 112 are formed. Then, projections 74 for forming the flow path control projections 113 are formed at predetermined intervals on the cooling water passage 11.

When manufacturing a cooling headgear using such a mold 7, generally, the mold 7 is covered with a reinforcing cloth 51, and the mold 7 and the reinforcing cloth 51 are also covered.
A latex coagulating liquid is injected between the mold 7 and the back surface of the reinforcing cloth 51 to adhere the latex coagulating liquid, and then the latex coagulating liquid is discharged. 61 is formed.

However, according to such a method,
There is a drawback that the thickness of the latex layer at the portion X where the protrusion 74 contacts the reinforcing cloth 51 becomes thin. That is, since the protrusions 74 come into contact with the reinforcing cloth 51, the latex solution slightly flows between the protrusions 74 and the reinforcing cloth 51 to form a rubber layer, but there is a drawback in that it is basically inevitably thin.

Further, the latex solution penetrates into the grain of the reinforcing cloth 51 to form the outer surface 5, but it contacts the latex coagulating liquid, and the latex layer formed in the first step inhibits the penetration of the latex solution. Therefore, the latex layer that adheres due to the anchor effect may not sufficiently penetrate into the fabric of the reinforcing cloth 51, and the outer surface 5 having a small adhesive strength may be formed. Further, when the reinforcement cloth 51 has a large mesh, the rubber cloth cannot fill the mesh and the hermeticity may be impaired. In addition, air is adsorbed to the fibers forming the reinforcing cloth 51, and there is a drawback that air is entrained in forming the latex layer 52 and the adhesive force is reduced. If the adhesive strength is weak like this, the reinforcing cloth and the latex layer may be peeled off by the pressure of water, and in particular, the portion Y of the cooling water channel 11 is not entrained with air and has a large thickness for good durability for cooling. Headgear is desired.

The present invention has been made in view of the above-mentioned problems, and provides a method for manufacturing a cooling headgear in which the latex layer in the portion Y of the cooling water channel 11 can be made sufficiently thick and which has good adhesive strength. The purpose is to

[0017]

In order to solve the above problems, the method for manufacturing a cooling headgear according to the present invention comprises a cooling bladder having a shape corresponding to the head shape, and cooling water is provided inside the cooling bladder. A method of manufacturing a cooling headgear in which a cooling water passage for forming a cooling water passage is formed, and further, a plurality of flow passage control projections for controlling the flow of cooling water is provided in the cooling water passage, the method for defining the cooling water passage. A step of applying a latex coagulating liquid to the surface of a molding die having a wall and a plurality of projections for forming flow path control projections and basically having a head shape, and a mesh-like reinforcing cloth is applied to the molding die. Covering step, press-in a latex solution between the surface of the molding die and the back surface of the reinforcing cloth, simultaneously apply the latex solution to the surface of the reinforcing cloth, and pass the latex solution to the surface of the reinforcing cloth between the surface of the molding die and the back surface of the reinforcing cloth. Let the reinforcement cloth Step to expel the air, while keeping filled latex solution between reinforcing fabric back surface and the mold surface, characterized in that it comprises the step of applying the latex coagulation liquid from the reinforcing fabric surface.

According to the present invention, the mold coated with the latex coagulant is covered with a mesh-like reinforcing cloth, and the latex solution is applied between the molding mold and the reinforcing cloth while applying the latex solution to the surface of the reinforcing cloth. After filling, the pressure of the latex solution between the molding die and the reinforcing cloth is made higher than the pressure of the latex solution on the surface so that the latex solution between the molding die and the reinforcing cloth passes through the surface of the reinforcing cloth. As the latex solution passes through the reinforcing cloth, the air adsorbed on the reinforcing cloth moves to the latex solution on the surface of the reinforcing cloth. At this time, a rubber layer is formed on the surface of the molding die, the wall and the surface of the protrusions to which the latex coagulating liquid is applied.

Then, the latex coagulating liquid is immersed in the latex coagulating liquid while the latex solution is filled between the molding die and the reinforcing cloth, so that the latex coagulating liquid permeates into the inside of the reinforcing cloth to form a latex layer inside the reinforcing cloth. Since the thickness of the inner latex layer can be controlled by the immersion time in the latex coagulating liquid, a thick latex layer can be formed on the inner side of the reinforcing cloth and a thin latex layer can be formed on the outer side.

[0020]

FIG. 1 is a front view of a molding die according to the present invention. As is clear from this figure, the molding die 7 is basically in the shape of a head, and a partition wall W is further formed. Wall 7
1 is formed from the frontal part to the occipital part so as to divide the left and right parts, and a wall 72 for forming the partition wall 13 is formed from the wall 71 at the top of the head to the ear part forming projection 73. As a result, the left and right systems and the upstream water channel 11
1 and the cooling water channel 11 including the downstream water channel 112 will be formed. The protrusions 74 for forming the flow path control protrusions 113 of the cooling water passage 11 are provided on the walls 71 and 72.
A plurality of them are formed at predetermined intervals.

The latex coagulating liquid 8 is applied to the surface of the molding die 7 and dried. By this drying, the latex coagulant layer 81 is formed on the surface of the molding die 7, the wall 13, and the flow rate control projection 113 (see FIG. 3A). The latex coagulating liquid may be basically any liquid as long as it coagulates the latex solution, and typically, a solution of a polyvalent metal salt such as calcium nitrate can be used.

As described above, the molding die 7 coated with the latex coagulant layer 81 is covered with the reinforcing cloth 51 to cover the portion forming the cooling bladder 1, and the gap between the surface of the molding die 7 and the back surface of the reinforcing cloth 51 ( Hereinafter, referred to as the inside of the reinforcing cloth) (see FIGS. 2 and 3A). The reinforcing cloth 51 uses a mesh in the present invention. Generally, a knitted fabric or a broadened fabric is used as the reinforcing cloth. However, such cloth is clogged and it is difficult for the latex solution or the latex coagulating liquid to pass through. For this reason, in the present invention, a mesh having a rough texture through which a latex solution or a latex coagulating liquid can easily pass is used. Mesh texture (void)
Is preferably 1 to 5 mm. 1 mm
If it is less than, latex solution or latex coagulation liquid becomes difficult to pass through the fabric, and it may be difficult to expel air as the latex solution passes through the fabric,
In addition, there is a possibility that a thick latex layer cannot be formed on the portion Y or X in the step of applying the latex coagulating liquid.
On the other hand, if it exceeds 5 mm, the texture is too large and there is a risk of forming pinholes.

After covering the reinforcing cloth 51 in this manner, the latex solution 92 is filled inside the reinforcing cloth while applying the latex solution 91 to the surface of the reinforcing cloth 51 (FIG. 3).
(See (b)). Since the pressure of the latex solution 92 inside the reinforcing cloth is higher than the pressure of the latex solution 91 on the surface of the reinforcing cloth 51, the latex solution 92 inside the reinforcing cloth passes through the mesh of the mesh reinforcing cloth 5. And reinforcing cloth 5
It will flow into the latex solution 91 on the surface of No. 1. At this time, the air 10 adsorbed on the fiber surface of the reinforcing cloth 51 is conveyed to the latex solution 92 and flows into the latex solution 91. Therefore, the air on the surface of the reinforcing cloth 51 is removed.

The method of applying the latex solution 91 is not particularly limited, and it can be performed, for example, by immersing the molding die 7 covered with the reinforcing cloth 51 in the latex solution. The latex solution may be sprayed or flowed down on the surface of 51.

When the latex solution 92 is filled in the reinforcing cloth as described above, the latex layer 61 is formed on the surface of the mold 7 on which the latex coagulant layer 81 is formed (partition wall 71, projection 74 surface). . This latex layer 61 is
The inner surface 6 of FIGS. 7 and 8 is configured. At this time, the reinforcing cloth 5
Since the latex coagulating liquid was not applied to No. 1, the latex layer was basically not formed. Further, since the latex layer 61 does not entrap air, it becomes a good quality latex layer.

By thus injecting the latex solution 92 into the reinforcing cloth 51, the molding die 7, the wall 13,
The latex layer 61 is formed on the surface of the flow control protrusion 113 (see FIG. 3C).

Such a latex solution is not basically limited in the present invention. For example, it can be a latex solution of natural rubber, chloroprene rubber, SBR or the like. In the present invention,
A latex solution of natural rubber is particularly preferable because it does not cause pollution.

Next, the latex coagulating liquid is applied from the surface of the reinforcing cloth 51 while the latex solution 92 is being injected into the reinforcing cloth. The application of the latex coagulation liquid can be performed, for example, as shown in FIG.
It is performed by immersing in the latex coagulating liquid 8 as shown in FIG. By injecting the latex solution 92 into the reinforcing cloth as described above and immersing the latex solution in the latex coagulating liquid 8, the latex coagulating liquid 8 permeates into the reinforcing cloth through the mesh of the reinforcing cloth 51, and the latex solution 92 To form a latex layer 52. At this time, since the mesh of the reinforcing cloth 51 is larger than that of the conventional one, the reinforcing cloth 51 penetrates well into the reinforcing cloth. Further, since the latex solution 92 also exudes on the surface of the reinforcing cloth 51, the reinforcing cloth 5
Since the latex layer is formed on the surface of No. 1 and is integrated with the latex layer on the back surface of the reinforcing cloth 51, the adhesive strength is significantly improved.

When immersed in this latex coagulating liquid, it is preferable that the pressure of the latex coagulating liquid and the pressure of the latex solution are balanced.

By thus immersing the latex coagulating liquid 8 in the latex coagulating liquid 8, the latex coagulating liquid 8 permeates the inside of the reinforcing cloth 51 and comes into contact with the latex solution 92 so that the latex layer 52
To form. At this time, the latex solution 92 is reinforced with the reinforcing cloth 51.
Since it is a mesh, it can sufficiently penetrate (because the latex coagulating liquid has not been applied to the reinforcing cloth in advance), and since the reinforcing cloth 51 has a large mesh as described above, the latex coagulating liquid 8 is sufficient. The latex layer 52 that can penetrate into the inside of the reinforcing cloth 51 and has a sufficient anchor effect (having good adhesiveness) can be formed on the front and back surfaces of the reinforcing cloth 51. That is, the latex layer 52 communicating with the front and back surfaces of the reinforcing cloth 51 can be formed.

Further, since the tops of the protrusions 74 are basically not adhered to the reinforcing cloth 51 and the reinforcing cloth 51 is a mesh, when the latex solution is injected into the reinforcing cloth, the tops are Since the latex solution will wrap around in a sufficient amount and come into contact with the latex coagulating liquid, a latex layer having a large layer thickness can be formed.

The latex layer inside the reinforcing cloth 51 can also be made sufficiently thick by controlling the immersion time in the latex coagulating liquid 8.

[0033]

As described above, according to the present invention,
While covering the molding die coated with the latex coagulant with a mesh-like reinforcing cloth, while applying the latex solution to the surface of the reinforcing cloth, the latex solution is filled between the molding die and the reinforcing cloth to form the molding die and the reinforcing cloth. The pressure of the latex solution between them is made higher than the pressure of the latex solution on the surface, so that the latex solution between the mold and the reinforcing cloth is passed over the surface of the reinforcing cloth. As the latex solution passes through the reinforcing cloth, the air adsorbed on the reinforcing cloth moves to the latex solution on the surface of the reinforcing cloth. Since such a step is included, a latex layer having good adhesive strength can be formed without involving air.

[Brief description of drawings]

FIG. 1 is a front view of a mold for manufacturing a cooling headgear according to the present invention.

FIG. 2 is an explanatory view illustrating a process for manufacturing a cooling headgear according to the present invention.

FIG. 3 is an explanatory view illustrating a process for manufacturing a cooling headgear according to the present invention.

FIG. 4 is an explanatory view illustrating a process for manufacturing a cooling headgear according to the present invention.

FIG. 5 is a side view of the cooling headgear excluding the outer surface.

FIG. 6 is a plan view of a cooling headgear.

7 is a sectional view taken along line AA in FIG.

8 is a sectional view taken along line BB in FIG.

[Explanation of symbols]

1 cooling bag 11 Cooling channel 111 upstream waterway 112 Downstream waterway 113 Flow control protrusion 13 partitions 2 water inlet 3 drainage ports 5 outer surface 51 Reinforcement cloth 52 Latex layer 6 Inside surface 61 Latex layer 7 Mold 71 wall 74 Protrusion 8 Latex coagulating liquid 81 Latex coagulant layer 91 latex solution 92 Latex solution 10 air

Claims (4)

[Claims] 1. A plurality of cooling bladder having a shape corresponding to a head shape, a cooling water passage through which cooling water passes is formed in the cooling bladder, and a plurality of cooling water flow control means are provided in the cooling water passage. A method of manufacturing a cooling headgear provided with a flow path control projection of, which comprises a wall for defining a cooling water channel and a plurality of projections for forming a flow path control projection, and basically has a head shape. The step of applying a latex coagulating liquid to the surface of the molding die, the step of covering the molding die with a mesh reinforcing cloth, the latex solution is injected between the molding surface and the back surface of the reinforcing cloth, and at the same time the surface of the reinforcing cloth Latex solution is applied to the surface of the reinforcing cloth to pass the latex solution between the surface of the molding die and the back surface of the reinforcing cloth to expel air of the reinforcing cloth, and the latex solution is filled between the surface of the molding die and the back surface of the reinforcing cloth. Leave the above supplement A method of manufacturing a cooling headgear, comprising a step of applying a latex coagulating liquid from the surface of a strong cloth. 2. A plurality of the flow path control projections are arranged side by side so as to block the flow of water, and the distance between the flow path control projections of the row adjacent to the row is different. The method for manufacturing a cooling headgear according to claim 1. 3. The mesh of the mesh reinforcing cloth is 1 to 5 m.
The method for manufacturing a cooling headgear according to claim 1 or 2, wherein m is m. 4. The manufacturing of cooling headgear according to claim 1, wherein the pressure of the latex solution between the surface of the mold and the back surface of the reinforcing cloth is larger than the pressure of the latex solution on the surface of the reinforcing cloth. Method.