JPH0525812A - Ship fender protecting member and manufacturing method thereof - Google Patents

Abstract

PURPOSE:To make it possible to promote durability in connection sections of a protecting member body with hook sections and, at the same time, to enable the manufacturing of a fender protecting member to be facilitated and also to be carried out at a low cost because of a reduced number of parts. CONSTITUTION:A sheet-like member 1 into which a reinforcing layer is buried or both side edge sections 1a and 11a along a circumferential direction of a drum section 3 of a cylindrical member 11 are folded to integrate hook sections 6 equipped with insertion sections 5 of squeezing ropes 4 into a unit. In addition, each of the hook sections 6 is so formed that it has approximately the same length as the longitudinal one of the drum section 3, and cut sections 12 are formed in the insertion sections 5 of the squeezing ropes 4 along the circumferential direction at specific intervals.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fender protection member for a pneumatic fender that is used by being placed on the side of a quay or a hull and its manufacturing method. ,
Further, the present invention relates to a fender protection member having improved durability of a hook portion provided with a drawing rope insertion portion, and a method for manufacturing the same.

[0002]

2. Description of the Related Art Conventionally, as a fender protecting member which is used by being arranged on a quay or a side of a hull, for example, FIGS.
The sheet type X shown in FIG. 6 and the cylindrical type Y shown in FIGS. 6 and 7 are known. In the sheet-shaped type X shown in FIGS. 3 to 5, the outer rubber layer is sequentially laminated on the reinforcing layer in which the reinforcing cord K is covered with rubber or urethane to form the sheet-shaped member 1. , Having a length L and a width H covering the outer peripheral surface of the body portion 3 of the pneumatic fender 2,
As shown in FIG. 5, a plurality of hook portions 6 each having an insertion portion 5 for the diaphragm rope 4 are integrally attached to both side edge portions 1a, 1a along the circumferential direction of the body portion 3, respectively, as shown in FIG. .

Further, a plurality of holes 8 through which the tightening rope 7 is inserted are formed at predetermined intervals on both side edge portions 1b, 1b along the longitudinal direction of the body portion 3 of the sheet-like member 1. In addition, 9 is a cap attached to the end of the pneumatic fender 1,
Reference numeral 10 is a guy chain for mooring the pneumatic fender 2.
The cylindrical type Y shown in FIGS. 6 and 7 has a sheet-shaped member 1 formed by sequentially laminating outer rubber layers on a reinforcing layer obtained by coating the reinforcing cord K with rubber or urethane as described above. The cylindrical member 11 is formed by joining both side edges in the longitudinal direction of the cylindrical member 1 and covering the outer peripheral surface of the body portion 3 of the pneumatic fender 2. And the cylindrical member 11
A plurality of hook portions 6 having insertion portions 5 for the diaphragm rope 4 are provided on both side edge portions 11a, 11a along the circumferential direction of the body portion 3.
Are installed respectively.

In the sheet type X and the cylindrical type Y as described above, a plurality of hook portions 6 having an insertion portion 5 are provided.
When attaching, insert the squeezing rope 4 through the insertion part 5
The base end portions of the plurality of hook portions 6 formed with the above are respectively overlapped and arranged on both side edge portions 1a, 1a of the sheet-shaped member 1 or both side edge portions 11a, 11a of the cylindrical member 11 and integrated by vulcanization. It is to be molded as desired.

[0005]

However, in the conventional method of manufacturing the member for protecting the fender as described above, it is necessary to form a large number of hook portions 6 in advance, so that the number of parts is large, and There has been a problem that it takes a lot of time and effort to arrange the sheet-shaped member 1 on both side edge portions 1a, 1a or the cylindrical member 11 on both side edge portions 11a, 11a in an overlapping manner.

Further, the reinforcing layer of the sheet-shaped member 1 and the reinforcing layer of the cylindrical member 11 and the reinforcing layer of the hook portion 6 are independent of each other, and their connection is merely vulcanization adhesion, so that they are joined together. There is a problem that the strength of the part is weak and the hook part 6 is easily damaged from the sheet-shaped member 1 and the cylindrical member 11 due to long-term use, and the durability is extremely poor.

The present invention has been devised in view of the above conventional problems, and can improve the durability of the connecting portion between the protective member main body and the hook portion and has a small number of parts. It is an object of the present invention to provide a fender protecting member that can be easily manufactured and can be manufactured at low cost, and a manufacturing method thereof.

[0008]

In order to achieve the above object, the present invention comprises a reinforcing layer embedded in a protective member main body,
The gist is that the reinforcing layers of the plurality of hook portions having the insertion portions are continuously and integrally formed. Also, the present invention integrally forms a hook portion including an insertion portion of the throttle rope by folding back both side edges along the circumferential direction of the body portion of the sheet-shaped member or the cylindrical member in which the reinforcing layer is embedded, The gist of the invention is that the length of the body portion is substantially equal to the length of the body portion, and the cut portions are formed at predetermined intervals along the circumferential direction in the insertion portion of the diaphragm rope.

[0009]

The present invention is constructed as described above, and the reinforcing layer embedded in the protective member main body and the reinforcing layers of the plurality of hook portions having the insertion portions are continuously and integrally formed. , The tip of the hook part is folded back to integrally form the insertion part of the squeezing rope, and by forming notches at a predetermined interval along the circumferential direction in the insertion part of the squeezing rope, the protective member main body and the hook Since the durability with the parts can be improved and the number of parts can be remarkably reduced as compared with the conventional case, the manufacturing can be easily performed and the manufacturing cost can be further reduced.

[0010]

Embodiments of the present invention will be described below with reference to the accompanying drawings. The same components as those in the conventional example are designated by the same reference numerals and the description thereof will be omitted. FIG. 1 is a front view of a sheet-type type X fender protection member according to a first embodiment of the present invention, in which 2 is a pneumatic fender and 3 is a pneumatic fender 2.
The reference numeral 9 designates a body part of the pneumatic fender 2.

Next, a method of manufacturing a sheet-type type X fender protection member, a method of cutting the hook portion 6 of the protection member after vulcanization, and a method of cutting the hook portion 6 of the protection member before vulcanization. The method of cutting will be described separately. (A). A method of manufacturing a sheet type X fender protection member. (a). A method of cutting the hook portion 6 of the protective member after vulcanization. A length L and a width H that cover the outer peripheral surface of the body portion 3 of the pneumatic fender 2 by sequentially stacking outer rubber layers on a reinforcing layer obtained by coating a reinforcing cord attached to a molding drum (not shown) with rubber or urethane. A rectangular sheet-like member 1 having a and is formed.

Then, both side edge portions 1a, 1a along the circumferential direction of the body portion 3 of the sheet-shaped member 1 are folded back so that the outer rubber is on the outside and vulcanized, and the length of the body portion 3 in the longitudinal direction is increased. And the rope 4
The hook portion 6 including the insertion portion 5 is integrally formed. The vulcanization may be performed as it is on the molding drum, or may be carried out after the vulcanization. Alternatively, the outer layer rubber may be laminated on the inner side and the reinforcing layer may be laminated on the outer side to be folded outward on the molding drum. After that, wedge-shaped notches 12 are formed in the insertion portion 5 of the diaphragm rope 4 along the circumferential direction at predetermined intervals.

If necessary, a punch hole may be formed at the tip of the cut portion 12 so that a crack does not enter from the tip when the protective member is attached or detached. Further, both side edge portions 1b along the longitudinal direction of the body portion 3 of the sheet-shaped member 1,
A plurality of holes 8 through which the tightening rope 7 is inserted are formed in the 1b at predetermined intervals. Further, when forming the hook portion 6 having the insertion portion 5 of the squeezing rope 4, when the both side edge portions 1a, 1a are folded back so that the outer rubber layer is on the outer side, the polyethylene sheet is arranged on the inner side and vulcanized. By removing the polyethylene sheet after molding, the insertion portion 5 does not come into close contact, and molding can be performed easily. (b). A method of cutting the hook portion 6 of the protective member before vulcanization. Pneumatic fender 2 by sequentially laminating outer layer rubber on a reinforcement layer obtained by coating a reinforcement cord (not shown) with rubber or urethane 2
The rectangular sheet-like member 1 having a length L and a width H that covers the outer peripheral surface of the body portion 3 is formed.

Then, both side edges 1a, 1a along the circumferential direction of the body portion 3 of the sheet-shaped member 1 are folded back so that the outer rubber layer is on the outside, and the length of the body portion 3 is substantially equal to the length in the longitudinal direction. The hook portion 6 including the insertion portion 5 of the diaphragm rope 4 is integrally formed. After that, wedge-shaped notches 12 are formed in the insertion portion 5 of the diaphragm rope 4 along the circumferential direction at predetermined intervals.

After forming the wedge-shaped cut portion 12 as described above, in order to prevent the reinforcing cord exposed from the cut portion from being deteriorated by heat during vulcanization, the cut surface is covered with a rubber sheet and then vulcanized. And mold integrally. In addition,
If necessary, a punch hole may be formed at the tip of the cut portion 12 so that a crack does not enter from the tip when the protective member is attached and detached. Further, a plurality of holes 8 through which the tightening rope 7 is inserted are formed at predetermined intervals on both side edge portions 1b, 1b along the longitudinal direction of the body portion 3 of the sheet-shaped member 1.

FIG. 2 is a front view of a cylindrical type Y fender protection member showing a second embodiment of the present invention, in which 2 is a pneumatic fender and 3 is a pneumatic fender 2. A body portion, 9 is a mouthpiece attached to a terminal portion of the pneumatic fender 2. (B). A method for manufacturing a cylindrical type Y fender protection member. (a). A method of cutting the hook portion 6 of the protective member after vulcanization. A length L and a width H that cover the outer peripheral surface of the body portion 3 of the pneumatic fender 2 by sequentially stacking outer rubber layers on a reinforcing layer obtained by coating a reinforcing cord attached to a molding drum (not shown) with rubber or urethane. A rectangular sheet-like member 1 having a and is formed.

Then, both side edges of the sheet-shaped member 1 in the longitudinal direction are joined so as to be substantially equal to the outer shape of the body portion of the pneumatic fender 2 to form a cylindrical member 11, and the cylindrical member 11 is formed. Side edges 1a, 1a along the circumferential direction of the body portion 3 of
Is folded back so that the outer rubber layer is on the outside and vulcanized to form a length approximately equal to the length of the body portion 3 in the longitudinal direction, and a hook portion 6 having an insertion portion 5 for the squeezing rope 4 is formed. Form integrally.

The vulcanization may be performed as it is on the molding drum, or may be carried out after the vulcanization. Alternatively, the outer layer rubber may be laminated on the inner side and the reinforcing layer may be laminated on the outer side, and the vulcanization may be repeated outward on the molding drum. Is also good. After that, the wedge-shaped notch portions 1 are formed in the insertion portion 5 of the diaphragm rope 4 along the circumferential direction at predetermined intervals.
2 is cut and formed. If necessary, a punch hole may be formed at the tip of the cut portion 12 so that a crack does not enter from the tip when the protective member is attached and detached.
When forming the hook portion 6 having the insertion portion 5 of the squeezing rope 4, when the side edge portions 1a, 1a are folded back so that the outer rubber layer is on the outer side, the polyethylene sheet is arranged on the inner side, and after vulcanization molding By removing the polyethylene sheet, the insertion part 5 does not come into close contact, and the molding can be easily performed. (b). A method of cutting the hook portion 6 of the protective member before vulcanization.

A length L covering the outer peripheral surface of the body portion 3 of the pneumatic fender 2 by sequentially laminating outer rubber layers on a reinforcing layer formed by coating a reinforcing cord attached to a molding drum (not shown) with rubber or urethane. And a rectangular sheet-shaped member 1 having a width H and a width H. Then, both side edges in the longitudinal direction of the sheet-like member 1 are joined so as to be substantially equal to the outer shape of the body portion 3 of the pneumatic fender 2 to form a cylindrical member 11, and the body of the cylindrical member 11 is formed. Both side edge portions 11 along the circumferential direction of the portion 3
a and 11a are folded back to integrally form the hook portion 6 having the insertion portion 5 of the throttle rope 4, and the body portion 3
Is formed to have a length substantially equal to the length in the longitudinal direction. afterwards,
Wedge-shaped notches 12 are formed in the insertion portion 5 of the diaphragm rope 4 along the circumferential direction at predetermined intervals.

After forming the wedge-shaped cut portion 12 as described above, in order to prevent the reinforcing cord exposed from the cut portion from being deteriorated by heat during vulcanization, the cut surface is covered with a rubber sheet and then vulcanized. And mold integrally. In addition,
If necessary, a punch hole may be formed at the tip of the cut portion 12 so that a crack does not enter from the tip when the protective member is attached and detached.

The sheet-type fender protection member may be a cylindrical fender, although the fastening rope 8 may break and the fender protection member may come off the pneumatic fender 2. The protective member does not have such a problem and is excellent in durability. In addition, in the above embodiment, the notch 12
Is not limited to a wedge shape, but can be cut into a rectangular shape, a trapezoidal shape, or the like.

As described above, according to the present invention, the protective member main body and the hook portion 6 having the insertion portion 5 of the squeeze rope 4 are integrally formed by continuously forming the reinforcing layer, thereby improving durability. Since it is excellent and it is not necessary to form a plurality of hook portions 6 in advance, it is also excellent in productivity and workability. Further, when the hook portions 6 are formed by cutting in a wedge shape, the body portion 3 of the pneumatic fender 2 is formed. Since the area covering the (mirror portion) is large, the effect of protecting the pneumatic fender 2 is great.

[0023]

As described above, according to the present invention, since the protective member main body and the hook portion are integrally formed by the continuous reinforcing layer, the durability of the connecting portion between the protective member main body and the hook portion is improved. In addition to improving the productivity, the number of parts is small, so that the manufacturing can be easily performed, the productivity and workability can be improved, and the manufacturing cost can be reduced.

[Brief description of drawings]

FIG. 1 is a front view of a sheet-type fender protection member of the present invention.

FIG. 2 is a front view of a cylindrical type fender protecting member of the present invention.

FIG. 3 is a front view of a conventional sheet-shaped type fender protecting member.

4 is a development view of the sheet-type fender protection member of FIG.

5 is an enlarged sectional view taken along the line AA of FIG.

FIG. 6 is a front view of a conventional cylindrical type fender protecting member.

FIG. 7 is a side view of FIG.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 sheet-like member 1a both side edge parts 2 pneumatic fender 3 body part 4 throttle rope 5 insertion part 6 hook part 11 cylindrical member 11a both side edge parts 12 notch part

Claims (2)

[Claims] 1. A protective member main body formed in a cylindrical shape or a sheet having a length substantially equal to the length of the body portion of the pneumatic fender in the longitudinal direction of the body portion of the body portion for protection, A fender protection member formed by attaching a plurality of hook portions having insertion portions for a squeeze rope, a reinforcement layer embedded in the protection member main body portion, and a reinforcement of a plurality of hook portions having the insertion portions. A member for protecting a fender, characterized in that the layer and the layer are continuously and integrally formed. 2. A cylindrical member is formed by sequentially stacking outer rubber layers on a reinforcing layer in which a reinforcing cord is covered with rubber or urethane, and joining sheet-shaped members or both side edges in the longitudinal direction of the sheet-shaped members. In the method for manufacturing a fender protecting member for covering the outer peripheral surface of a body part of a pneumatic fender with the sheet member or the cylindrical member, the sheet member or the cylindrical member in which the reinforcing layer is embedded Both side edges along the circumferential direction of the body part are folded back to integrally form a hook part having an insertion part for the squeezing rope, and the hook part is formed to have a length substantially equal to the longitudinal direction of the body part, A method for manufacturing a fender protection member, characterized in that cut portions are formed at predetermined intervals along the circumferential direction in the insertion portion of the squeeze rope.