JP3109434U - Rope guard - Google Patents

Abstract

[PROBLEMS] To eliminate the hassle of attaching to and detaching from a rope, efficiently and easily deploy and store the rope, and at the same time, the contact portion with the rope (chock, fairlead) may be inadvertently worn out. It is a point to eliminate.
A base material 2 made of polyester-based synthetic fiber, a reinforcing band fabric 3 made of high-performance fibers sewn integrally with the base material 2, and at least two opposite edges of the base material 2 It is made up of a fixed string insertion portion forming cloth piece 4 that is integrally sewn S to 2A.
[Effect] Since the conductor is surrounded by the guard 1 using high-performance fibers, the wear of the rope R can be reduced as much as possible. There is no need, and the rope R can be efficiently and easily expanded and stored, which greatly contributes to a significant improvement in work performance rate.
[Selection] Figure 1

Description

This device is mainly used for marine hawser ropes, tugboat ropes, marine ropes, and if necessary, any wire or rope such as aquaculture, stationary, bottom fisheries fishery ropes, land ropes, etc. The present invention relates to a guide guard used by applying to (hereinafter simply referred to as a rope in this device).

From a marine terminology, the conductor is a chock or fair leader.
eader). Specifically, it is provided on the deck of a ship in order to guide, for example, when a tugboat rope or a ship hawser rope is fed or unloaded. The shape may be a ring shape (closed chock) or a C shape with the top opened (open chock).

Conventionally, the portion of the rope that is usually in contact with each of the ropes of the ship is generally determined.
However, at these contact portions, the contact surface with these conductors is worn by friction. In particular, wear damage during the use of fiber cords is likely to occur at this site.

Therefore, a protective material called a protector 1 ′ is surrounded around these parts to reduce the wear of the ropes and to improve the life of the ropes as much as possible. Specifically, FIG.
A rectangular patch 2 'as shown in Fig. 1 is wound around the rope.

However, the type of protector that is wound around the conventional rope is generally made of a fabric in which polyester fibers are plain-woven. In addition, installation and removal work was necessary, and it took time. Another problem is that it is difficult to properly contact the protector and the conductor. That is, at the start of mooring work, first attach this protector to the required part of the rope. However, in reality, the position of the initial attachment does not fit perfectly with the lead during the extension of the rope or during the subsequent tension of the rope due to the extension of the rope itself. As a result, the protector did not contact the conductor correctly, and it was necessary to adjust the attachment position of the protector again.

Therefore, there is a demand for a means that does not require the trouble of attaching the protector to the cable-like shape, eliminates inadvertent friction with the conductor, and extends the cable-like service life.

Therefore, as a result of various studies, the present inventors abandoned the method of attaching a protector in a cord shape and devised a new means. As a result, we developed a satisfying guard for the conductor, which is proposed here.
FIG.

Therefore, the problem to be solved is that it eliminates the hassle of attaching and detaching to the cable shape, and can efficiently expand and store the cable shape, and inadvertently contact the conductor It is a point that eliminates the risk of wear.

In order to solve the above technical problem, the guide guard according to claim 1 of the present invention is:
A base material made of polyester-based synthetic fiber, a reinforcing member made of high-performance fiber integrally sewn on the base material, and a fixed piece that is sewn integrally on at least two opposite edges of the base material It is comprised from the insertion part formation cloth piece of a string.

The guard for a guiding device having the above-described structure is attached to the guiding device by attaching the back surface thereof to the inside of the guiding device and attaching the guard to the insertion portion forming piece of the fixed string. Once the guard is attached, it will not be detached from the conductor unless the attachment string or the like is released. As a result, the conductor, in particular the inner part in contact with the cord, is always covered with this guard. Therefore, there is no direct contact between the conductor and the cable shape, and the risk of damage to the cable shape due to friction can be reduced.

In this way, the conductor guard according to claim 1 of the present invention surrounds the conductor with the guard using the high-performance fiber, so that the cable-like wear can be reduced as much as possible. At the same time, unlike the conventional case, it is not necessary to attach or remove the protector to the cable. As a result, it is possible to expand and store the cords efficiently and easily, and greatly contribute to the improvement of the work performance rate. In particular, due to the presence of high-function fibers, the useful life of the guard itself can be increased and the intended purpose can be achieved successfully.

In this device, as shown in claim 2, the guard for the conductor is provided with a margin for absorbing a dimensional difference between the inner edge and the side edge of the conductor at least at the two opposite edges of the base material. Is preferably formed.
As for a conductor, the diameter of the inner side and the side periphery following it necessarily differs (refer FIG. 5). As a result, in order to absorb the difference in diameter between the inside and outside of the conductor, the guard is wrinkled toward the inside of the conductor. However, due to the existence of this allowance, the edge of the guard becomes substantially longer than the center side of the guard. Therefore, when attached, it is well adapted to the inner side and the side periphery, and can keep the cord-like slip well and prevent inadvertent cord-like wear.

Further, in this device, as described in claim 3, the clearance is defined by a plurality of cuts provided toward the center side of the base material at a plurality of locations on the two opposite edges of the base material, and the base. It is preferably formed of a piece of flexible cloth that is sewn integrally to the material and allows the cut to be expanded.
The intended purpose can be achieved by simple cutting or by using an elastic material instead of the flexible cloth piece. However, it is possible to increase the strength of the base material of the cut portion with this flexible cloth piece, and thus to increase the service life of the guard, by sewing not only an incision but also an elastic cloth piece instead of an elastic material. Because you can.

Furthermore, in this device, as described in claim 4, it is desirable that the notch is any one of a straight line, a wedge shape, and a U-shape from the peripheral edge of the substrate toward the central side.
The straight cut is very easy to process, can increase production efficiency, and can be provided at low cost. In addition, a wedge-shaped or U-shaped cut can be adopted, and in short, any structure may be used as long as a crease is obtained at the edge of the base material and as a result, the cut can be widened.

In the present invention, as described in claim 5, the flexible cloth piece has a lateral width longer than an opening width of the notch, and is provided on a back surface side of the notch so as to absorb the spread of the notch. It is desirable that the sash is integrally sewn on the edge of the notch.
Without obstructing the opening of the notch, give a sufficient opening angle to absorb the difference in diameter between the inside of the conductor and the side edge more effectively, and the guard on the inside and side edge of this conductor It is because it can be accustomed well.

Furthermore, in this device, as described in claim 6, the high-performance fiber abuts on the inner peripheral surface of the conductor on either the front or back surface of the base material, both the front and back surfaces or mainly the back surface of the base material. It is desirable to be provided at the site.
From the viewpoint of increasing the strength of the base material, it is ideally provided over the entire front or back surface. However, since the high-performance fiber is expensive, it is important to focus on the part where the base material is in contact with the conductor or the part where the rope is in contact with the base material, and further the part where the rope is in contact with the base material. This is because it is desirable from the viewpoint of economic efficiency. In practice, the cable does not contact the entire circumference of the conductor (depending on the position where the conductor is installed). In many cases, since it is from the inner peripheral surface to the side peripheral surface, it is desirable to provide this portion, particularly a portion that contacts the inner peripheral surface, or a portion corresponding thereto.

In addition, it is possible to select the front and back or both sides of the polyester-based synthetic fiber and assign the high-performance fiber to this, regardless of the type of abrasion that occurs due to the difference in the fibers used in the rope. This method is employed depending on whether the high-performance fiber should be brought into direct contact with the polyester-based synthetic fiber.

Further, according to the present invention, as described in claim 7, the insertion portion forming cloth piece of the fixed string is formed by folding the strip-shaped cloth piece halfway at the central portion in the length direction, and the base side is the base side. It is desirable that the back surface of the material is integrally sewn.
Compared to a metal ring, it can be easily attached to the base material, and it can be used for many years without damaging the conductor and without any risk of corrosion. Because it can. Further, the reason why it is provided on the back surface of the base material is that the insertion resistance of the rope is reduced, and the winding and feeding of the rope can be smoothly performed.

Examples of the high-performance fiber employed include wholly aromatic polyamide fiber, wholly aromatic polyester fiber, polyparaphenylene benzobisoxazole fiber, polyvinyl alcohol fiber, and ultrahigh molecular weight polyethylene fiber. Among these, ultra high molecular weight polyethylene fibers are preferable.

As the wholly aromatic polyamide fiber, a para-aramid fiber is suitable. Examples of this para-aramid fiber include “Kevlar” (trade name, manufactured by Toray DuPont Co., Ltd.), “
Commercial products such as “Technora” (trade name, manufactured by Teijin Limited) can also be used.

The fully aromatic polyester fiber is, for example, “Vectran” (trade name, manufactured by Kuraray Co., Ltd.), and the polyparaphenylene benzobisoxazole fiber is, for example, “Zylon” (trade name, manufactured by Toyobo Co., Ltd.). “Kuralon K2” (trade name, manufactured by Kuraray Co., Ltd.) can be used as the ultrahigh molecular weight polyethylene fiber, for example, “Dyneema” (trade name, manufactured by Toyobo Co., Ltd.).

  Moreover, the above highly functional fiber can be manufactured by a known method or a method equivalent thereto.

The objective of satisfying the two requirements of service life and strength has been realized with a simple structure and at low cost.

Hereinafter, based on the description of FIGS. 1 to 4, a first embodiment in which the conductor guard according to the present invention is applied to a closed chock that is an example of a conductor provided on the deck of a ship. explain.

Various shapes are adopted for the guard 1 for a guiding device of the present invention depending on the closed chock C to be applied. In this embodiment, as shown in FIGS.
And a reinforcing band fabric 3 as an example of a reinforcing member, which is integrally sewn in the center of the back surface of the base material 2, and two opposing edges 2A on the long side of the base material 2 It is comprised from the fixed-string insertion part formation cloth piece 4 integrally sewn at predetermined intervals along the direction. The base material 2 and the fixed string insertion part forming cloth piece 4 are made of polyester synthetic fiber, the base material 2 is formed in a mat shape, and the fixed string insertion part forming cloth piece 4 is formed in a strip shape. . The reinforcing band fabric 3 is made of “Kevlar” (trade name, manufactured by Toray DuPont Co., Ltd.) and is formed in a band shape narrower than the base material 2.

The reinforcing band 3 is sewn integrally on the back surface of the center portion in the width direction of the base material 2 over the entire length direction (direction along the frontage) of the equipment. The position where the reinforcing band cloth 3 is provided is
It cannot be determined unconditionally depending on the difference in the fibers of the rope R used and the size and structure of the closed chock C. However, from the viewpoint of economic efficiency, it is basically important to reinforce the portion where the base material 2 substantially contacts the closed chock C or the portion where the rope R, which is an example of a rope, contacts the base material 2. Is also desirable. In practice, the rope R is a closed chock C.
Although it depends on the position where the closed chock C is provided, in most cases, it is from the inner peripheral surface to the side peripheral surface. It is desirable to provide it at the abutting part. At a minimum, it is desirable to provide a width that is about one third of the width of the substrate 2.

As shown in FIG. 3, the fixed string insertion part forming cloth piece 4 is formed by folding the strip-like cloth piece 4 </ b> A at the center portion 4 </ b> B in the longitudinal direction to form the eye 5, and the base side 4 </ b> C is the base material 2. Are integrally sewn on the back surface.

The conductor guard 1 configured as described above is wound around a portion where the rope R is in contact with the closed chock C and fastened. More specifically, as shown in FIG. 4, the inner peripheral surface of the rope insertion hole C1 of the closed chock C, the insertion hole bottom C2, the left and right inner peripheral surfaces C3 connected thereto, and the insertion hole bottom C2 And it is wound around the side periphery C4 which continues in front and behind the left-right inner peripheral surface C3, and is fastened. The fastening is performed by sequentially tying the eye 5 of the insertion portion forming cloth piece 4 of the fixed string 6 through the fixed string 6.

Therefore, the rope R always contacts the guard 1 and does not contact the closed chock C directly. As a result, the wear of the rope R can be reduced as much as possible. Further, since the guard 1 is in contact with the closed chock C via the reinforcing band 3 made of high-performance fiber, it is pressed against the closed chock C with a high pressure, and even by frictional contact with the closed chock C, The service life of the guard 1 can be significantly increased without being worn out. Furthermore, in the case of this example, since the compatibility between the rope R and the base material 2 is good, the wear of the rope R can be reduced as much as possible.

In the structure of this embodiment, since it is difficult to cover almost the entire inner side of the closed chock C with the guard 1, the emphasis is on the part where the rope R actually contacts the closed chock C. It is desirable to be wound around and fasten.

Hereinafter, a second embodiment in which the guard for a conductor according to the present invention is applied to a closed chock that is an example of a conductor provided on the deck of a ship will be described based on the description of FIGS. .
The same members and configurations as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

In this embodiment, in order to fasten the guard 1 to the closed chock C more accurately,
A more devised structure is shown.

That is, as shown in FIG. 5, the closed chock C has a base material 2 because the diameter d of the side peripheral edge C4 is larger than the diameter D of the left and right inner side surfaces C3 of the inner peripheral surface of the rope insertion hole C1. Is adapted to be adapted to the difference in the diameter, the guard 1 can be wound around the closed chock C more accurately with no wrinkles and fastened, and as a result, the rope R can be extended and retracted more smoothly.

Specifically, as shown in FIGS. 6 to 9, at least two opposite peripheral edges 2 </ b> A of the substrate 2 have a dimensional difference between the closed chock C, that is, the left and right inner side faces C <b> 3 and the side peripheral edge C <b> 4. Clearance 7 to absorb is formed

The clearance 7 is provided at a plurality of locations on the two opposite edges 2A of the base material 2 at the notch 8 provided toward the center side of the base material 2 and on the back side of the base material 2. The flexible cloth piece 9 is integrally sewn to the base material 2 and allows the notches 8 to expand. The flexible cloth piece 9 has an appropriate shape such as a rectangle formed from a polyester synthetic fiber similar to that of the substrate 2 or a rectangle.

The flexible cloth piece 9 is sewn as follows so that the cut 8 can be expanded. That is, as shown in FIG. 8, the edge 9A on the base end side, that is, the center side in the width direction of the base material 2,
While being stretched flat as it is, the base material 2 is sewn S, and the left and right side edges 9B are brought closer to the notch 8 side toward the outer side edge 9C side, and the collar 10 is formed in the width direction. As described above, sewing is integrally performed on the left and right sides 8A of the cut 8 at appropriate portions, and the left and right side edges 9B are also sewn on the base material 2 integrally.

Therefore, even if a force is applied to the two peripheral edges 2A of the base material 2 which are opposed to each other in the length direction of the base material 2, the notch 8 is expanded to adapt to the lengthwise extension. However, this expansion is allowed only by the length of the collar 10 by the collar 10 of the flexible cloth piece 9, and thereafter, the flexible cloth piece 9 is strongly opposed to prevent the release of the notch 8 well.

Thus, in the second embodiment, the inside of the closed chock C, that is, the dimensional difference between the left and right inner side surfaces C3 and the side peripheral edge C4 is well absorbed, and the useful life of the base material 2 is increased.

The conductor guard 1 according to the second embodiment configured as described above is also similar to the first embodiment.
The rope R is wound around a portion that contacts the closed chock C and fastened. An overview after installation is shown in FIG.

In particular, the allowance is provided with a notch 8 and a flexible cloth piece 9, and when the notch 8 expands, the base 2 is opposed to the side edge C4 of the closed chock C having a long dimension. The lengths of the two peripheral edges 2A can be matched well with the length of the side peripheral edge C4. As a result, despite the dimensional difference between the inner side, that is, the left and right inner side surfaces C3 and the side peripheral edge C4, the guard 1 is appropriately wound around the closed chock C with the least possible occurrence of wrinkles. Can be concluded. Therefore, the feeding and feeding of the rope R can be performed very smoothly.

Further, the rope R is always in contact with the guard 1 and is not in direct contact with the closed chock C, so that the wear of the rope R can be reduced as much as possible, and the guard 1 is reinforced with high-performance fibers. In order to contact the closed chock C via the obi 3, the closed chock C
It is needless to say that the service life of the guard 1 can be significantly increased even if it is pressed at a high pressure and is not easily worn by frictional contact with the closed chock C. In addition, the second embodiment can also reduce the wear of the rope R as much as possible because the compatibility between the rope R and the base material 2 is good.

In the second embodiment described above, the incision is simply a linear incision, but instead of this, it is a wedge-shaped incision (not shown) or a U-shaped incision. However, it goes without saying that the intended purpose is achieved. Further, it goes without saying that it can be applied to an open chop instead of a closed chock, and also to a fair leader.

Further, in this second embodiment, although not shown, it is preferable that a plurality of the fixed string insertion portion forming cloth pieces 4 are also provided on the two opposing edges 2B along the width direction of the base material 2 respectively. .
In order to correspond to a ring-shaped conductor such as the closed chock C, when the entire circumference is surrounded, the edge in the length direction of the base material 2 can be firmly bound and fixed. Because.

In each of the first and second embodiments described above, the reinforcing band fabric 3 made of high-functional fibers is on the back surface of the base material 2 and over the entire area from the viewpoint of increasing the strength of the base material 2. It is desirable to provide it. However, since the high-performance fiber is expensive, in each of these examples, the above-described method is used.

In addition, in this device, it is also important to reduce the wear of the rope R as much as possible, and it is necessary to select the fibers of the guard 1 from the properties of the fibers used for the rope. In each of the above embodiments, an example in which the properties of the fibers used for the rope R are compatible with the polyester synthetic fibers is described. However, when the properties of the rope R are not suitable for the polyester-based synthetic fibers, the reinforcing band 3 is applied to the front side of the base material 2 so that the reinforcing band 3 made of high-performance fibers is in direct contact with the rope R. It is desirable to adopt. Conversely, by applying the reinforcing band fabric 3 made of this high-performance fiber to both the front and back surfaces of the base material 2, it is possible to correspond to the rope R that is compatible with the high-function fiber and to increase the strength of the base material 2. Can be adopted. Thus, in this device, in order to apply the reinforcing band fabric 3 to the base material 2, either the front or back of the base material 2,
Needless to say, it is desirable to employ the front and back surfaces appropriately according to the various situations as described above.

It is a top view of the 1st example of the guard for leaders concerning this device. It is a reverse view of FIG. It is the expansion perspective view which looked at the principal part of FIG. 1 from the back surface. It is explanatory drawing which shows the specific usage example of the guard for lead conductors shown by FIG. It is an explanatory outline figure of a closed chock to which a guard for a guiding device concerning this device is applied. It is a top view of the 2nd Example of the guard for leaders concerning this device. It is a reverse view of FIG. It is an expansion perspective view of the principal part of FIG. It is explanatory drawing which shows the specific usage example of the guard for lead conductors shown by FIG. It is explanatory explanatory drawing which shows the conventional method.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Leader guard 2 ... Base material 2A ... Edge 3 ... Reinforcement band cloth 4 ... Fixed part insertion part formation cloth piece 5 ... Eye 6 ... String 7 ... Clearance allowance 8 ... Notch 9 ... Interchangeable cloth piece C ... Closed Chock C1 ... Insertion hole C2 ... Insertion hole bottom C3 ... Left and right inner peripheral surface C4 ... Side edge R ... Rope S ... Sewing

Claims (7)

A base material made of polyester-based synthetic fiber, a reinforcing member made of high-performance fiber integrally sewn on the base material, and integrally sewn on at least two opposite edges of the base material A guard for a guiding device comprising a piece of cloth for forming an insertion portion of a fixed string. The guard for a guiding device according to claim 1, wherein a clearance for absorbing a dimensional difference between the inner side and the side periphery of the guiding device is formed on at least two opposing peripheral edges of the base material. The allowance is the cuts provided toward the center of the base material at multiple locations on the two opposite edges of the base material, and the notches are sewn together on this base material to expand the cut. The guide guard according to claim 2, wherein the guard is formed of a piece of flexible cloth to allow. The guard for a guiding device according to claim 3, wherein the notch is any one of a straight line, a wedge shape, and a U-shape from the periphery of the base material toward the center side. The flexible cloth piece has a width that is longer than the opening width of the notch, and is sewn integrally to the edge of the notch on the back side of the notch with sufficient clearance to absorb the spread of the notch. The guard for a guiding device according to claim 3. The high function fiber is a guard for a conductor according to claim 1, which is provided on a surface that is in contact with the inner peripheral surface of the conductor, either on the front or back surface of the base material, on both front and back surfaces, or mainly on the back surface of the base material. The fixed-string insertion-portion-forming cloth piece has a strip-like cloth piece that is half-folded at the center in the length direction to form an eye, and the base side is integrally sewn to the back surface of the substrate. Guard for the described conductor.

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