JP2003033387A - Method for producing headgear for cooling - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method for producing a headgear for cooling in which head portions of prongs for controlling cooling water channels are thick, a latex layer on a rear surface of a reinforcing cloth at an outer surface becomes sufficiently thick and has good adhesivity. SOLUTION: This method comprises following processes, a process of applying a latex coagulating liquid onto the surface of a forming mold having essentially the shape of a head portion, a process of covering the forming mold with the reinforcing cloth, a process of immersing the forming mold into a latex solution from its head top portion to sufficiently infiltrate the latex solution into the reinforcing cloth and to fill the latex thereinto, and a process of taking out the forming mold from the latex solution, turning the forming mold upside down, immersing it into the latex coagulating liquid from the head top portion, while injecting the latex solution between the forming mold and the reinforcing cloth from the top head portion.

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 passage 11 hangs down from the head 12 to expose the ears, as apparent from the cutaway view in which the outer 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 head 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 layer cannot fill the mesh and the hermeticity may be impaired.

The present invention has been made in view of the above-mentioned problems, and the cooling is performed such that the head portion of the flow path control projection is thick, the latex layer on the back surface of the reinforcing cloth on the outer side is sufficiently thick, and the adhesive strength is good. An object of the present invention is to provide a method for manufacturing a headgear for a vehicle.

[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 mold having a partition wall and a plurality of projections for forming flow path control projections, and basically having a head shape, a step of covering the mold with a reinforcing cloth, The step of immersing the molding die in a latex solution from the top of the head to sufficiently permeate the latex solution into the reinforcing cloth, filling the latex solution between the molding die and the reinforcing cloth, taking out the molding die from the latex solution, and performing the molding It was inverted, while injecting the latex solution between the mold and the reinforcing fabric from the top of the head, characterized in that it comprises a step of dipping from the neck direction latex coagulation liquid.

According to the present invention, the mold coated with the latex coagulant is covered with the reinforcing cloth and is immersed in the latex solution from the top of the head, so that the latex solution does not coagulate (the latex coagulating liquid is contained in the reinforcing cloth. Since it is not applied), it can penetrate into the reinforcing cloth and fill the latex solution between the mold and the reinforcing cloth.

Therefore, a rubber layer is formed on the surface of the molding die coated with the latex coagulating liquid, the wall and the surface of the protrusion.
When the mold is pulled up in this state, the latex solution that has not solidified is basically discharged.

Then, the mold is reversed and immersed in the latex coagulating liquid, so that the latex coagulating liquid permeates 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.

[0021]

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.

A latex coagulating liquid is applied to the surface of such a mold 7. 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 mold 7 coated with the latex coagulating liquid is covered with the reinforcing cloth 51 to cover the portion forming the cooling bag 1, and the gap between the mold 7 and the reinforcing cloth 51 (hereinafter referred to as the inside of the reinforcing cloth). (See FIG. 2).

After covering the reinforcing cloth 51 in this manner, the molding die 7 is dipped in the latex solution 8 with the top thereof facing downward (see FIG. 3). When the molding die 7 is immersed in the latex solution 8 in this way, the latex solution penetrates into the reinforcing cloth, and the inside of the reinforcing cloth is filled with the latex solution. At this time, the air inside the reinforcing cloth is discharged from the mesh of the reinforcing cloth as the latex solution is filled.

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.

When the latex solution is filled in the reinforcing cloth as described above, a latex layer is formed on the surface of the molding die 7 coated with the latex coagulating liquid (the surfaces of the partition wall 71 and the protrusion 74) (however, the protrusion 74 is used). The top of is only slightly formed). This latex layer constitutes the inner surface 6 of FIGS. 7 and 8. At this time, since the latex coagulating liquid is not applied to the reinforcing cloth 51, the latex layer is basically not formed. Further, since the latex layer 61 does not entrap air, it becomes a good quality latex layer.

Next, the molding die 7 is placed in the latex solution 8
When pulled up from the inside, the latex solution is discharged from the inside of the reinforcing cloth. At this time, since the inside of the reinforcing cloth has a negative pressure, the reinforcing cloth 51 comes into close contact with the tops of the protrusions 72.

Next, the molding die 7 is reversed and immersed in the latex coagulating liquid 9 from the neck portion direction. At this time, dipping is performed while pouring the latex solution into the reinforcing cloth from the top of the molding die 7. As described above, the latex solution is preferably immersed in the latex coagulating liquid 9 while being injected into the reinforcing cloth so that the external pressure of the latex coagulating liquid and the internal pressure of the latex solution are balanced. Specifically, if the molding die 7 is floated on the latex coagulation liquid 9 and the latex solution is injected, the molding die 7 will gradually sink into the latex coagulation liquid 9, so that the internal pressure and the external pressure are balanced. You can

By thus immersing the latex coagulating liquid 9 in the latex coagulating liquid 9, the latex coagulating liquid penetrates into the reinforcing cloth and comes into contact with the latex solution to form the latex layer 52. At this time, the latex solution can sufficiently permeate into the reinforcing cloth 51 (because the latex coagulating liquid has not been applied to the reinforcing cloth in advance), and the latex layer 52 having a sufficient anchor effect (having good adhesiveness) is formed. can do.

Further, since the tops of the protrusions 74 are basically not adhered to the reinforcing cloth 51, when the latex solution is injected into the reinforcing cloth, the latex solution is allowed to sneak into the tops in a sufficient amount. Since it comes into contact with the latex coagulating liquid, it is possible to form a latex layer having a large layer thickness.

The latex layer inside the reinforcing cloth 51 can also be made sufficiently thick by controlling the immersion time in the latex coagulating liquid 9.

[0032]

As described above, according to the present invention,
It is possible to manufacture a cooling headgear that has good adhesive strength between the reinforcing cloth and the latex layer, has a large latex layer inside the reinforcing cloth, and has a large latex layer at the top of the flow path control protrusion. It will be possible. For this reason, it is possible to manufacture a cooling headgear that is not easily broken by the pressure of the cooling water and has good durability.

[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

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Claims (3)

[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. A step of applying a latex coagulating liquid to the surface of the forming die, a step of covering the forming die with a reinforcing cloth, and dipping the forming die in a latex solution from the top of the head to sufficiently permeate the latex solution into the reinforcing cloth, The step of filling the latex solution between the mold and the reinforcing cloth, taking out the mold from the latex solution, turning the mold upside down, and injecting the latex solution between the mold and the reinforcing cloth from the top of the neck, Latte from the direction A method of manufacturing a cooling headgear, comprising the step of immersing the cooling headgear in a coagulation liquid. 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 step of immersing the latex solution in the latex coagulating liquid from the neck direction while injecting the latex solution between the molding die and the reinforcing cloth is performed so that the pressure of the latex solution and the pressure of the latex coagulating liquid are balanced. A method of manufacturing a characteristic cooling headgear.