JP3328852B2 - Oil fence manufacturing method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of manufacturing an oil fence, and more particularly to a method of manufacturing a new oil fence without using release paper at the time of manufacturing.

[0002]

2. Description of the Related Art Conventionally, as a method of manufacturing an oil fence, for example, there is a method shown in FIG. 11 or FIG.

Here, the method shown in FIG. 11 is a method in which a release paper is used to form a bag portion for injecting air.
As shown in the figure, a release paper 102 such as a polyester film is interposed between the unvulcanized rubbers 101, and unvulcanized rubbers 103 for reinforcing above and below, and fins for forming fins on the left and right sides thereof. Vulcanized rubber spacer 104,
104, and these unvulcanized rubber 10
By simultaneously vulcanizing and pressing 1, 103 and 104, an oil fence having one bag 105 therein is manufactured. Further, in order to form two bag portions in the oil fence, two layers of cylindrical unvulcanized rubber 101 having the release paper 102 interposed therebetween are superimposed on each other, and the upper and lower sides and left and right sides of the same are used for reinforcement. Unvulcanized rubber 103,10
3, and spacers 104, 104 made of unvulcanized rubber are arranged and vulcanized and pressed from above and below.

The method shown in FIG. 12 utilizes a property that different types of unvulcanized rubber do not adhere to each other even when vulcanizing and pressurizing, so that a bag portion for injecting air into an oil fence of an integrally molded product is used. Is formed, for example, in FIG.
No. 06 is made of unvulcanized chloroprene rubber, and the other reinforcing rubber members 107, 108, 109 and the spacer member 110 are made of unvulcanized styrene-butadiene rubber. 107 and a gap X that does not adhere even after the vulcanizing press,
The gap X is used as a bag section 111 for storing air. In addition, between the member 106 and the reinforcing rubber member 108, the reinforcing rubber member 108 is formed in a wedge shape at the time of vulcanizing press on a cloth 112 formed by spinning nylon fiber or the like which is exposed on the surface of the member 106. Invaded, both 106,
108 are made.

[0005]

However, in the method using the release paper described above, both ends of the oil fence in the longitudinal direction are also vulcanized except for the air inlet 113 as shown in FIG. Since it is in a state of bonding at the time of pressing, the inserted release paper 102 cannot be taken out after the vulcanization press, and the release paper 102 remains in the oil fence. Therefore, the remaining release paper 102 becomes crumpled while being used in the oil fence, impeding smoothness when the oil fence is not in use, or reducing the air injection port 113 of the oil fence.
Sometimes clogged.

Further, in the method of forming a bag portion in an oil fence using release paper, both ends 114, 114 of the formed bag portion 105 are sharply split, and the bag portion 10 is formed.
If you inflate the oil fence by injecting air into 5,
As shown in FIG. 14, stress was concentrated on the ends 114, 114 of the bag portion, and the oil fence was sometimes torn from the ends 114, 114. Further, in the method using the release paper, for example, the release paper 102 is bent in the middle as shown in FIG. 15, or is shifted to the right or left as shown in FIG. In this case, the hatched portion in the figure also adheres, and the formed bag portion 105 is distorted or does not have a predetermined inner diameter.
02 must be carefully handled during production.
Workability was poor. In addition, the above-mentioned inconvenience also occurs when two bags are formed in an oil fence using two release papers.

Further, in the method using different kinds of unvulcanized rubber shown in FIG. 12, although the above-mentioned disadvantage does not occur because the release paper is not used, the cross section of the oil fence manufactured by the method is not limited. As shown in FIG.
Of different types of unvulcanized rubber members 10 inserted to form
The thickness will be different on the left and right by the thickness of 6 etc.,
When the oil fence is floated on the sea surface, the oil fence tilts toward a thicker side, and it is necessary to separately attach a weight or the like to prevent the tilt. Further, the inserted different type of unvulcanized rubber member 106 itself is connected to the bag portion 11 to be formed.
1 does not function as a reinforcing member for the oil fence because it exists only on one of the right and left sides.

[0008] The present invention has been made in view of the problems of the oil fence obtained by the above-described conventional manufacturing method, and has as its object to use no release paper at the time of manufacturing.
Moreover, an object of the present invention is to provide a method of manufacturing an oil fence in which a member used for forming a bag portion functions as a member for reinforcing or partitioning the oil fence.

[0009]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a long vulcanized rubber plate member having a reinforcing cloth exposed on one side; By bending a long plate member made of unvulcanized rubber disposed on the side where the cloth of the plate member is exposed, at both ends in the width direction, the plate member made of vulcanized rubber is inward. Forming a tubular member having an existing flat multi-layer structure, and arranging long plate members made of unvulcanized rubber for reinforcement above and below the tubular member,
A long spacer made of unvulcanized rubber for forming a fin portion is disposed on the left and right sides of the cylindrical member, and then these members are simultaneously vulcanized and pressed to form a single bag portion therein. To manufacture an oil fence having a structure (Claim 1)
I decided that.

Further, the present invention provides a long vulcanized rubber plate-like member having a reinforcing cloth exposed near both ends in the width direction on one side, and a cloth for the vulcanized rubber plate-like member. And a long plate member made of unvulcanized rubber, which is disposed on the side where is exposed, is bent at both ends in the width direction, so that the flat plate member made of vulcanized rubber exists inside. For forming a cylindrical member having a structure, disposing long plate members made of unvulcanized rubber for reinforcement above and below the cylindrical member, and forming fin portions on the left and right sides of the cylindrical member. A long spacer made of unvulcanized rubber is arranged, and then these members are simultaneously vulcanized and pressed to produce an oil fence having two bag portions therein (Claim 2). did.

[0011]

According to the above-described method for manufacturing an oil fence according to the present invention, the inner peripheral surface of a flat multi-layered cylindrical member in which vulcanized rubber comes into contact with each other or between vulcanized rubber and unvulcanized rubber. Does not adhere to the vulcanized press, and the unvulcanized rubber that is in contact with the side where the reinforcing cloth of the vulcanized rubber is exposed is the fiber of the cloth during the vulcanizing press. A member made of unvulcanized rubber which is arranged above and below or on the left and right of a cylindrical member in which the vulcanized rubber is joined by invading between the vulcanized rubbers and the unvulcanized rubber comes into contact with each other is formed by a vulcanizing press. When a vulcanized rubber plate-like member having a reinforcing cloth exposed on one entire surface is used (claim 1), a single tubular bag portion is provided inside the vulcanized rubber bag. Vulcanization with an oil fence that can be manufactured and the cloth for reinforcement is exposed only near the both ends in the width direction on one side In the case of using the beam plate-like member made of (claim 2), can be produced is an oil fence having two of the tubular bag portion therein. The bag portion formed on the oil fence has a structure in which both ends thereof are less likely to cause stress concentration on a curved surface, and the vulcanized rubber plate-shaped member itself used for forming the bag portion also has It functions as a reinforcing member or a partition member of the oil fence.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of a method for manufacturing an oil fence according to the present invention will be described, and the present invention will be described in detail.

Here, FIGS. 1 to 5 show an example of a manufacturing process of the oil fence according to claim 1.
First, as shown in FIG. 1, a long plate member 2 made of unvulcanized rubber of the same kind as the plate member 1 is placed on a long reinforcing plate member 1 made of unvulcanized rubber, Further above the plate-like member 2
A long plate member 4 made of vulcanized rubber having a smaller width than that and having the nylon cloth 3 exposed on the back surface is stacked.

Next, as shown in FIG. 2 and FIG. 3, the upper two plate members 2, 4 which are superposed are bent at both ends in the width direction to thereby form the plate members 4 made of vulcanized rubber. Form a cylindrical member 5 having a flat double structure inside.

Thereafter, as shown in FIG. 4, a long reinforcing plate member 6 made of unvulcanized rubber is disposed on the cylindrical member 5 and fin portions are formed on the left and right sides thereof. A long spacer 7 made of vulcanized rubber is arranged.

Finally, the various members 1 to 7 are simultaneously vulcanized and pressed from above and below as shown in FIG. 5 to produce an oil fence.

Here, when the above various members 1 to 7 are vulcanized and pressed, the vulcanized rubber comes into contact with each other or between the vulcanized rubber and the unvulcanized rubber. The inner peripheral surface is not adhered by the vulcanizing press, and the unvulcanized rubber plate-like member 2 in contact with the exposed side of the vulcanized rubber reinforcing nylon cloth 3 is vulcanized. At the time of pressing, the unvulcanized rubber penetrates between the fibers of the cloth 3 in the form of a wedge, and the vulcanized rubber plate member 4 is pressed.
The unvulcanized rubber members 1, 6, and 7 arranged above and below or on the left and right of the cylindrical member 5 where the unvulcanized rubbers are in contact with each other are bonded at the time of the vulcanization press. , An oil fence 9 having one tubular bag portion 8 inside
Can be manufactured.

As shown in FIGS. 6 and 7, the bag portion 8 formed on the oil fence 9 has both ends 10,
10 has a structure in which stress concentration on a curved surface is unlikely to occur, and
The left and right thicknesses of the bag portion 8 are the same, and the vulcanized rubber plate member 2 itself used to form the bag portion 8 itself functions as a reinforcing member for the oil fence 9. Become.

FIGS. 8 and 9 show a vulcanized rubber plate member used in the method for manufacturing an oil fence according to claim 2 and a vulcanized rubber plate member during vulcanization pressing. It shows an example of the arrangement, and as is apparent from the figure, the vulcanized rubber plate-like member 11 according to the present invention.
Is a nylon cloth 12 for reinforcement only near both ends in the width direction.
The vulcanized rubber plate-like member 11 is provided with an unvulcanized rubber long plate-like member 2 surrounding the outer periphery thereof and the reinforcing nylon cloth 12 at both ends in the width direction. The exposed portion of the vulcanized rubber plate-like member 1 is bent by being curved at a portion including the vulcanized rubber plate-like member 11.
A cylindrical member 13 having a flat double structure in which 1 exists inside is formed and vulcanized and pressed in this state.

The method for manufacturing an oil fence according to claim 2 is different from the method for manufacturing an oil fence according to claim 1 in that the structure of the vulcanized rubber plate member 11 and the vulcanization Since only the arrangement of the rubber plate-shaped member 11 at the time of the vulcanizing press is different, the same reference numerals are given to the same members as those in the above embodiment in FIG. 9, and the details of the manufacturing process are omitted.

In the case of the manufacturing method according to claim 2,
When the vulcanization press is performed, the inner peripheral surface of the cylindrical member 13 having a flat double structure in which the vulcanized rubbers or the vulcanized rubber and the unvulcanized rubber come into contact with each other, are adhered even when the vulcanized press is performed. First, the first tubular bag portion 14 is formed in this portion. The unvulcanized rubber plate-like member 2 in contact with the side where the vulcanized rubber reinforcing nylon cloth 12 is exposed is a vulcanized rubber plate where the reinforcing nylon cloth 12 is exposed. In the vicinity of both ends of the vulcanized member 11, the unvulcanized rubber is wedge-shaped between the fibers of the cloth 12 where the unvulcanized rubber is exposed at the time of the vulcanization press, and is bonded to the vulcanized rubber plate-like member 11. However, in the other intermediate portions, the vulcanized rubber and the unvulcanized rubber come into contact with each other without passing through the cloth 12, so that the vulcanized press does not adhere to the vulcanized press,
The second tubular bag portion 15 is formed in this portion. Therefore, according to the method for manufacturing an oil fence according to the second aspect, the oil fence 16 having two cylindrical bag portions 14 and 15 inside can be manufactured.

As shown in FIG. 10, both ends 17, 17 of the tubular bags 14, 15 formed on the oil fence 16 have a structure in which stress concentration hardly occurs. , 15 used to form the vulcanized rubber plate 11 serve as a partition member for defining two air chambers in the oil fence 16.

As described above, the embodiment of the present invention has been described.
The present invention is not limited to the embodiments described above, and various modifications and changes can be made based on the technical concept of the present invention.

For example, in the above-described embodiment, only one long plate member 2 made of unvulcanized rubber that surrounds the long plate members 4 and 11 made of vulcanized rubber is used, and vulcanized inside. The tubular members 5 and 13 having a flat double structure in which the plate members 4 and 11 made of vulcanized rubber are formed, but a large number of long plate members 2 made of unvulcanized rubber are used. The cylindrical members 5 and 13 having a multi-layer structure with high strength may be used.

Further, in the above-described embodiment, the long plate members 4 and 11 made of vulcanized rubber existing inside the formed tubular members 5 and 13 are provided between the both ends in the width direction. The tubular members 5 and 13 having a double structure into which a part of the long plate-like member 2 made of unvulcanized rubber that encloses (see FIGS. 5 and 9) are present inside. The structure may be such that both ends in the width direction of the long plate members 4 and 11 made of vulcanized rubber are abutted, and only the outer periphery is wrapped by the plate member 2 made of unvulcanized rubber.

[0026]

As described above, the method of manufacturing an oil fence according to the present invention described above has the greatest feature in using a vulcanized rubber plate-like member for forming a bag portion. The oil fence obtained by the method has a structure in which both ends of the formed bag portion are less likely to cause stress concentration on the curved surface, and the vulcanized rubber plate member itself used to form the bag portion also has It functions as a reinforcing member or a partition member of the oil fence.

[Brief description of the drawings]

FIG. 1 is a first process diagram showing one embodiment of a method for manufacturing an oil fence according to claim 1;

FIG. 2 is a second process diagram showing one embodiment of the method for manufacturing an oil fence according to claim 1;

FIG. 3 is a third process diagram showing one embodiment of the method for manufacturing an oil fence according to claim 1;

FIG. 4 is a fourth process diagram showing one embodiment of the method for manufacturing an oil fence according to claim 1;

FIG. 5 is a fifth process diagram showing one embodiment of the method for manufacturing an oil fence according to claim 1;

FIG. 6 is a partial cross-sectional view of an oil fence obtained by the method for manufacturing an oil fence according to claim 1;

FIG. 7 is a sectional view of an oil fence obtained by the method for manufacturing an oil fence according to claim 1;

FIG. 8 is a conceptual sectional view showing one embodiment of a vulcanized rubber plate-like member used in the method for manufacturing an oil fence according to claim 2;

FIG. 9 is a conceptual cross-sectional view showing one embodiment of a method for manufacturing an oil fence according to claim 2;

FIG. 10 is a sectional view of an oil fence obtained by the method for manufacturing an oil fence according to claim 2;

FIG. 11 is a conceptual cross-sectional view illustrating an example of a conventional method of manufacturing an oil fence.

FIG. 12 is a conceptual cross-sectional view showing another example of a conventional method for manufacturing an oil fence.

FIG. 13 is a perspective view showing a longitudinal end of an oil fence obtained by the manufacturing method of FIG. 11;

FIG. 14 is a sectional view of an oil fence obtained by the manufacturing method of FIG.

FIG. 15 is a partial sectional view in the middle of the manufacturing method in FIG. 11;

FIG. 16 is a partial sectional view in the middle of the manufacturing method of FIG. 11;

FIG. 17 is a sectional view of an oil fence obtained by the manufacturing method of FIG.

[Explanation of symbols]

 DESCRIPTION OF REFERENCE NUMERALS 1 Unvulcanized rubber reinforcing plate member 2 Unvulcanized rubber plate member 3 Nylon cloth 4 Vulcanized rubber plate member 5 Double structure tubular member 6 Unvulcanized rubber reinforcement Plate member for use 7 Spacer 8 Bag portion 9 Oil fence 10 End portion of bag portion 11 Plate member made of vulcanized rubber 12 Nylon cloth 13 Double tubular member 14 First bag portion 15 Second bag portion 16 Oil fence 17 End of bag

Claims (2)

(57) [Claims] 1. A vulcanized rubber long plate-like member having a reinforcing cloth exposed on one side, and an unvulcanized rubber plate-like member disposed on a side of the vulcanized rubber plate where the cloth is exposed. By bending a long plate-shaped member made of vulcanized rubber at both ends in the width direction, a flat multi-layered cylindrical member in which the plate-shaped member made of vulcanized rubber exists inside is formed, Along with placing a long plate member made of unvulcanized rubber for reinforcement above and below the cylindrical member,
A long spacer made of unvulcanized rubber for forming a fin portion is disposed on the left and right sides of the cylindrical member, and then these members are simultaneously vulcanized and pressed to form a single bag portion therein. A method for producing an oil fence, comprising: producing an oil fence having: 2. A long plate member made of vulcanized rubber in which a reinforcing cloth is exposed near both ends in the width direction of one surface, and a side of the vulcanized rubber plate member where the cloth is exposed. A long platy member made of unvulcanized rubber and a flat multi-layered tubular structure in which the vulcanized rubber plate member is present by bending both ends in the width direction thereof. Forming a member, arranging long plate members made of unvulcanized rubber for reinforcement above and below the cylindrical member, and forming unfinished rubber for forming fin portions on the left and right sides of the cylindrical member Place a long spacer made of
Thereafter, a vulcanizing press is performed on these members at the same time to produce an oil fence having two bags therein.