WO2016170926A1 - Protective cover for vertical pneumatic fender, vertical pneumatic fender, and usage for vertical pneumatic fender - Google Patents
Protective cover for vertical pneumatic fender, vertical pneumatic fender, and usage for vertical pneumatic fender Download PDFInfo
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- WO2016170926A1 WO2016170926A1 PCT/JP2016/059891 JP2016059891W WO2016170926A1 WO 2016170926 A1 WO2016170926 A1 WO 2016170926A1 JP 2016059891 W JP2016059891 W JP 2016059891W WO 2016170926 A1 WO2016170926 A1 WO 2016170926A1
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- WIPO (PCT)
- Prior art keywords
- protective layer
- layer body
- fender
- vertical pneumatic
- pneumatic fender
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B59/00—Hull protection specially adapted for vessels; Cleaning devices specially adapted for vessels
- B63B59/02—Fenders integral with waterborne vessels or specially adapted therefor, e.g. fenders forming part of the hull or incorporated in the hull; Rubbing-strakes
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/20—Equipment for shipping on coasts, in harbours or on other fixed marine structures, e.g. bollards
- E02B3/26—Fenders
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
Definitions
- the present invention relates to a protective cover for a vertical pneumatic fender, a vertical pneumatic fender, and a method of using the vertical pneumatic fender, and more particularly, to prevent the floating oil from adhering to the water surface.
- the present invention relates to a protective cover for a vertical pneumatic fender, a vertical pneumatic fender, and a method of using the vertical pneumatic fender that can suppress swelling and deterioration of the plastic.
- Pneumatic fenders installed on the quay walls or on the shore side are known for the purpose of preventing damage to the hull and quay when the ship is berthing.
- the pneumatic fender is a hollow body made of rubber in which a reinforcing material is embedded. The inside of the hollow is filled with air, and when the ship touches the shore, the impact is mitigated by the elastic force generated by the enclosed air.
- the form of pneumatic fenders can be broadly divided into two types: horizontal and vertical.
- the horizontal pneumatic fender is used by floating in water with the longitudinal direction being horizontal.
- the vertical pneumatic fender is used by suspending a predetermined amount of water in the hollow interior and floating on the water in a standing state in which a part thereof is submerged in water and the longitudinal direction is vertical.
- a sheet-like protective member that covers the outer surface of the fender has been proposed (see, for example, Patent Document 1).
- this protective member is intended to prevent damage to the fenders caused by contact with the hull or the like, and is not intended for swelling deterioration due to the oil described above.
- An object of the present invention is to provide a protective cover for a vertical pneumatic fender, a vertical pneumatic fender, and a vertical pneumatic that can prevent the floating material from adhering to the surface of the water to swell and deteriorate. It is to provide a method of using a fender.
- the protective cover for a vertical pneumatic fender is a vertical pneumatic fender having a bowl-shaped mirror connected to both upper and lower ends of a cylindrical body.
- a protective cover for a vertical pneumatic fender that is detachably mounted, a cylindrical protective layer body that covers a partial range in the vertical direction of the outer surface of the body part, and the protective layer body
- An attachment portion disposed at a predetermined position of the fender, and when disposed at a predetermined position of the fender, the protective layer body causes the oil floating on the water surface and the protective layer body of the trunk portion to It is characterized in that the covered area can be isolated.
- a vertical pneumatic fender according to the present invention is a vertical pneumatic fender having a cylindrical body part and bowl-shaped mirror parts connected to upper and lower ends of the body part. It is provided with a removable cylindrical protective layer body that covers a part of the outer surface in the vertical direction, and by this protective layer body, the oil floating on the water surface and the range covered by the protective layer body of the trunk portion are provided. It is characterized by enabling isolation.
- Another vertical pneumatic fender according to the present invention is a vertical pneumatic fender provided with a cylindrical body and bowl-shaped mirrors connected to both upper and lower ends of the body.
- a cylindrical protective layer body covering a part of the outer surface of the body part in the vertical direction is provided, and this protective layer body is formed of an oil-resistant member and provided integrally by vulcanization adhesion.
- the protective layer body makes it possible to isolate the oil floating on the water surface from the range covered by the protective layer body of the body portion.
- the method of using the vertical pneumatic fender according to the present invention is to install the vertical pneumatic fender described above by setting the midway in the vertical direction of the protective layer body to a water surface position.
- the protective layer body separates the oil from the area covered by the protective layer body of the trunk portion.
- a cylindrical protective layer body that covers a part of the outer surface of the body part in the vertical direction is provided, and by this protective layer body, oil floating on the water surface and the protective layer body of the body part are provided. Therefore, it is possible to prevent the area covered by the protective layer body from being swollen and deteriorated by the oil floating on the water surface. Further, since this protective layer body only covers a part of the outer surface of the body part in the vertical direction, it is advantageous for reducing the material forming the protective layer body.
- the protective layer body may be extrapolated to the body portion with a space from the outer surface of the body portion, and may have a buoyancy that floats on water alone. According to this configuration, since the protective layer body independently moves up and down as the water surface moves up and down, the protective layer body can easily protect the outer surface of the body portion from the oil floating on the water surface.
- the protective layer body can be configured to abut on the outer surface of the body part and be extrapolated to the body part. According to this configuration, it is advantageous to prevent a problem that the protective layer body is inadvertently detached from the body portion.
- the attachment part is constituted by, for example, a string-like body that connects the protective layer body and the mirror part side connected to the upper end of the body part. According to this configuration, the protective layer body can be stably attached to the fender with the minimum necessary attachment portion.
- the protective layer body is formed of an oil-resistant member, it is advantageous to prevent swelling deterioration in a range covered with the protective layer body.
- an oil resistant member for example, an elastic member containing acrylonitrile-butadiene rubber is used.
- FIG. 1 is an explanatory view illustrating an embodiment of a protective cover for a vertical pneumatic fender according to the present invention in a side view.
- FIG. 2 is an explanatory view illustrating the protective cover for the vertical pneumatic fender of FIG. 1 in plan view.
- FIG. 3 is an explanatory view illustrating another embodiment of a protective cover for a vertical pneumatic fender according to the present invention in a vertical sectional view.
- FIG. 4 is an explanatory view illustrating the protective cover for the vertical pneumatic fender of FIG. 3 in plan view.
- FIG. 5 is an explanatory view illustrating the protective cover for the vertical pneumatic fender shown in FIG. FIG.
- FIG. 6 is an explanatory view illustrating still another embodiment of the protective cover for the vertical pneumatic fender according to the present invention in a side view.
- FIG. 7 is an explanatory view illustrating the protective cover for the vertical pneumatic fender of FIG. 6 in plan view.
- FIG. 8 is an explanatory view illustrating the protective cover for the vertical pneumatic fender shown in FIG. 6 when the ship touches the shore as viewed from the side.
- FIG. 9 is an explanatory view illustrating an embodiment of the vertical pneumatic fender according to the present invention in a side view.
- FIG. 10 is an explanatory view illustrating a vertical pneumatic fender as viewed in vertical section.
- a conventional vertical pneumatic fender 1A (hereinafter referred to as fender 1A) is, as illustrated in FIG. 10, a cylindrical body 1a and a bowl-like shape connected to both upper and lower ends of the body 1a.
- the mirror part 1b is provided.
- a base part 1c is provided at the upper end part of the upper mirror part 1b, and a base part 1d is provided at the lower end part of the lower mirror part 1b.
- the body part 1a and the mirror part 1b are configured by a member in which a plurality of reinforcing layers are laminated between an inner layer rubber and an outer layer rubber. Air A is filled in a hollow internal space formed by the body portion 1a and the mirror portion 1b, and a predetermined amount of water W is injected. In the drawing, the boundary between the body portion 1a and the mirror portion 1b is indicated by a two-dot chain line.
- the base part 1c is provided with an inlet for injecting air A and water W, a safety valve for preventing the internal pressure of the fender 1A from becoming excessive, a pressure sensor for measuring the internal pressure, and the like.
- One end of a separate guy chain 5 is connected to each of the cap parts 1c and 1d.
- the fender 1A When the fender 1A is installed on the quay wall or on the berth side, the other end of the guy chain 5 connected to the base 1c is fixed to the quay or the hull. A weight 6 is connected to the other end of the guy chain 5 connected to the base 1d. Then, a fender 1A in which air A and water W are housed in a hollow internal space is partly submerged in water such as the sea, and the longitudinal direction (the cylinder axis direction of the body portion 1a) is set up vertically. Float on the sea etc. in a state.
- the fender 1A is installed so that the water surface is located at a position in the middle of the body portion 1a in the vertical direction. Therefore, when the oil C drifts and stays in the water area where the fender 1A is installed, the oil C floating on the water surface always contacts the body portion 1a. If the fender 1A is continuously used as it is, the outer layer rubber forming the body portion 1a is swollen by the oil C. This swelling causes a decrease in the strength of the body portion 1a and makes it impossible to use the fender 1A.
- protective cover 2 for vertical pneumatic fenders of the present invention illustrated in FIGS. 1 and 2 (hereinafter referred to as protective cover 2) is used.
- This protective cover 2 includes a cylindrical protective layer body 3 that covers a portion of the outer surface of the body portion 1a in the vertical direction, and an attachment portion 4 that arranges the protective layer body 3 at a predetermined position of the fender 1A. I have.
- the protective layer body 3 is a sheet in which an elastic member such as rubber or a resin is thinly formed in a layer shape. Depending on the installation water area, it is 1 m or more and 3 m or less.
- the protective layer body 3 has a specification that substantially does not soak water.
- the cylindrical protective layer body 3 is continuous without any breaks in both the circumferential direction and the cylinder axis direction.
- the protective layer body 3 is manufactured, for example, by integrally molding a member into a cylindrical shape. Alternatively, the cylindrical protective layer body 3 is manufactured by joining a plurality of members. In this case, the joint seam of each member is processed so as not to generate a gap so that the oil C does not pass.
- the cylindrical protective layer body 3 extrapolated to the fender 1A covers a part of the outer surface of the body portion 1a in the vertical direction.
- the protective layer body 3 can be formed using an oil-resistant member or a non-oil-resistant member. Moreover, the protective layer body 3 can be formed using an elastic member, or the protective layer body 3 can be formed using a non-elastic member. For example, the protective layer body 3 is formed using an elastic member containing acrylonitrile-butadiene rubber excellent in oil resistance. Other examples of the elastic member having oil resistance include fluorine rubber, chloroprene rubber, and chlorinated polyethylene rubber.
- the protective layer body 3 is formed of an elastic member, the inner diameter of the protective layer body 3 and the outer surface of the trunk portion 1a are increased by expanding the diameter of the cylindrical protective layer body 3 and extrapolating it to the trunk portion 1a. It can be adhered.
- a string 4b (upper string 4b) connecting the protective layer 3 extrapolated to the fender 1A and the upper mirror 1b side, and the protective layer 3
- a string-like body 4b (lower string-like body 4b) that connects the lower mirror part 1b side
- the upper string-like body 4b directly connects the upper end portion of the protective layer body 3 and the surface of the upper mirror portion 1b, or the cap portion provided on the upper end portion of the protective layer body 3 and the upper mirror portion 1b. 1c is connected.
- the lower string-like body 4b directly connects the lower end portion of the protective layer body 3 and the surface of the lower mirror portion 1b, or is provided on the lower end portion of the protective layer body 3 and the lower mirror portion 1b.
- the base 1d is connected. If the protective layer body 3 can be stably fixed to the fender 1A only with the upper string-like body 4b, the lower string-like body 4b can be omitted.
- the lower end portion of the upper string-like body 4b is connected to the upper end opening edge portion of the protective layer body 3 through the connection member 4a.
- the upper end part of the upper string-like body 4b is connected to the base part 1c via a fixing member 4c fitted on the base part 1c.
- the upper end portion of the lower string-like body 4b is connected to the lower end opening edge portion of the protective layer body 3 through the connection member 4a.
- a lower end portion of the lower string-like body 4b is connected to the base portion 1d via a fixing member 4c fitted on the base portion 1d.
- a rope made of resin or natural fiber, a metal chain, or the like can be used as the string-like body 4b.
- a rope made of resin or natural fiber as the string-like body 4b is advantageous for preventing the surface of the mirror portion 1b from being damaged due to the string-like body 4b.
- the protective cover 2 When this protective cover 2 is used, the protective cover 2 is attached to the fender 1A in which air A is housed in a hollow internal space on the ground or on the ship. Thereafter, as illustrated in FIG. 1, the fender 1 ⁇ / b> A is installed on the quay wall or on the shore side. Thereafter, water W is poured into the fender 1A to set the position in the middle of the protective cover 2 (protective layer body 3) in the vertical direction as the water surface position.
- the vertical fluctuation range of the water surface position falls within the range of the body portion 1a. Therefore, the vertical direction (cylinder axis direction) length of the protective layer body 3 and the vertical range covered with the protective layer body 3 may be determined according to the vertical fluctuation range of the water surface position.
- the protective cover 2 of the present invention by using the protective cover 2 of the present invention, the swelling deterioration of the fender 1A due to the oil C floating on the water surface can be effectively suppressed. Further, since the protective layer body 3 only covers a part of the outer surface of the body portion 1a in the vertical direction, it is advantageous for reducing the material forming the protective layer body 3.
- the thin protective layer body 3 is used, even when the protective cover 2 is attached to the fender 1A, the fender 1A is not significantly difficult to be compressed and restored. Therefore, the protective cover 2 does not cause a substantial adverse effect on the impact mitigation performance of the fender 1A.
- the protective layer body 3 When the protective layer body 3 is formed of a non-oil resistant member, the protective layer body 3 is deteriorated due to swelling or the like earlier due to the oil C adhering than when the protective layer body 3 is formed of an oil resistant member. Therefore, when the deterioration of the protective layer body 3 is discovered or after a preset period has elapsed, the deteriorated protective layer body 3 is removed from the fender 1A and replaced with a new protective layer body 3. Alternatively, the protective cover 2 may be replaced with a new one.
- the protective layer body 3 is formed of an oil resistant member, it is possible to prevent swelling deterioration in a range covered with the protective layer body 3 over a long period of time as compared with the case of forming it with a non-oil resistant member. Therefore, it is not necessary to replace with a new protective layer body 3 (protective cover 2). Alternatively, the frequency of replacement with a new protective layer body 3 (protective cover 2) can be reduced.
- the protective layer body 3 is configured to come into contact with the outer surface of the body portion 1a and be extrapolated to the body portion 1a, it is advantageous to prevent a problem that the protective layer body 3 is inadvertently detached from the body portion 1a. . If the inner surface of the protective layer body 3 and the outer surface of the body portion 1a are in close contact with each other, there is an advantage that the protective layer body 3 is difficult to be displaced with respect to the fender 1A, so the strength of the mounting portion 4 is set low. It becomes possible. When the inner surface of the protective layer body 3 and the outer surface of the body portion 1a are brought into close contact with each other, the protective layer body 3 may be formed of an elastic member that can follow the compression and decompression deformation of the fender 1A.
- the attachment part 4 is connected to the lower end of the protective layer body 3 and the body part 1a, the string-like body 4b connecting the protective layer body 3 and the mirror part 1b connected to the upper end of the body part 1a.
- the string-like body 4b that connects the mirror part 1b side is not provided, so that the string-like body 4b that connects the protective layer body 3 and the mirror part 1b side connected to the lower end of the body part 1a is not provided.
- the protective layer body 3 can be attached to the fender 1A more stably.
- the attachment part 4 can also be comprised by the string-like body 4b which connects the protective layer body 3 and the mirror part 1b side connected with the upper end of the trunk
- the protective layer body 3 is configured to have a buoyancy that floats on water alone.
- the protective layer body 3 is formed of a tubular structure member having a tubular stretchability that is externally inserted into the body portion 1 a.
- a closed cell structure resin, rubber, or the like can be used as the protective layer body 3.
- the protective layer body 3 of this embodiment can be obtained by adding a buoyancy portion such as a closed cell structure resin or rubber to the protective layer body 3 of the embodiment illustrated in FIGS.
- the protective layer body 3 is extrapolated to the body portion 1a with a space from the outer surface of the body portion 1a, and moves up and down independently according to the vertical movement of the water surface.
- the protective layer body 3 When the ship is berthing, the protective layer body 3 is sandwiched between the fender 1A and the quay S and between the fender 1A and the hull B as shown in FIG. Since the layer is thin and thin, the compression and decompression deformation of the fender 1A is not significantly difficult. Therefore, the protective cover 2 does not cause a substantial adverse effect on the impact mitigation performance of the fender 1A.
- the protective layer body 3 since the protective layer body 3 moves up and down independently as the water surface moves up and down, the protective layer body 3 makes it easy to protect the outer surface of the body portion 1a from the oil C floating on the water surface. Since the protective layer body 3 has sufficient buoyancy, the attachment part 4 fixed to the fender 1A can be dispensed with. However, in this embodiment, the protective layer body 3 is protected by the upper string-like body 4b having a surplus length in order to prevent the protective layer body 3 from being detached from the fender 1A when the fender 1A is installed and lifted from the installation location. The layer body 3 is attached to the fender 1A.
- 6 to 8 show another embodiment of the protective cover 2 provided with the protective layer body 3 having a buoyancy that floats on water alone.
- a part of the protective layer body 3 extrapolated to the body portion 1a is constituted by a buoyancy portion 3a having buoyancy.
- the protective layer body 3 the protective layer body 3 of the embodiment illustrated in FIGS. 1 and 2 can be used.
- the buoyancy part 3a for example, a closed cell resin or rubber can be used.
- the buoyancy part 3a is preferably provided facing the hull B or the quay wall S at a position where it is not pressed when the ship berths.
- the protective layer body 3 is extrapolated to the body portion 1a with a space from the outer surface of the body portion 1a, and moves up and down independently according to the vertical movement of the water surface.
- one end of the string-like attachment portion 4 is connected to a position corresponding to each buoyancy portion 3a of the protective layer body 3, and the other end is connected to the quay S.
- the protective layer body 3 When the ship is berthing, the protective layer body 3 is sandwiched between the fender 1A and the quay S and between the fender 1A and the hull B as shown in FIG. Since the body 3 is layered and thin, compression and decompression deformation of the fender 1A are not significantly difficult. Therefore, the protective cover 2 does not cause a substantial adverse effect on the impact mitigation performance of the fender 1A.
- the buoyancy part 3a can be provided continuously in the circumferential direction on the entire circumference or intermittently in the circumferential direction. If it arrange
- the vertical pneumatic fender 1 (hereinafter referred to as fender 1) of the present invention is provided with the above-described various protective layer bodies 3 detachably with respect to the conventional fender 1A. .
- FIG. 1 Another embodiment of the fender 1 is illustrated in FIG.
- the fender 1 includes a cylindrical protective layer body 3 that covers a portion of the outer surface of the body portion 1a in the vertical direction, and the protective layer body 3 is integrated as a fender 1 by vulcanization adhesion. It has become. That is, the inner surface of the protective layer body 3 is tightly fixed with no gap between the opposing surface.
- the protective layer body 3 can be additionally vulcanized and bonded to the outer surface of the conventional fender 1A, or the protective layer body 3 can be vulcanized and bonded to the outer layer rubber of the conventional fender 1A.
- the various specifications described above can be used. However, since it is not the specification which only the protective layer body 3 can attach or detach, the protective layer body 3 cannot be replaced
- the method of using the fender 1 is the same as in the above-described embodiment.
- the area covered by the protective layer 3 of the fender 1 is isolated from the oil C floating on the water surface, and the oil C is substantially prevented from adhering to the fender 1. it can. Therefore, the swelling deterioration of the fender 1 due to the oil C floating on the water surface can be effectively suppressed.
- This fender 1 has the advantage that the mounting portion 4 described above is not necessary and the advantage that the protective layer body 3 does not shift.
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- Ocean & Marine Engineering (AREA)
- General Engineering & Computer Science (AREA)
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Abstract
Provided are: a protective cover for a vertical pneumatic fender, that suppresses adherence by water surface oil and swelling deterioration of a fender; a vertical pneumatic fender; and a usage for a vertical pneumatic fender. A detachable protective cover 2 comprising a cylindrical protective layer 3 and an attachment section 4 is attached to a vertical pneumatic fender 1A. The protective layer 3 covers a partial range, in the vertical direction, of the outer surface of a trunk section 1a of the fender 1A. When oil C is floating on water in which the fender 1A is placed, the oil C and the range covered by the protective layer 3 of the fender 1A are separated, by the protective layer 3.
Description
本発明は、縦型空気式防舷材用の保護カバーおよび縦型空気式防舷材並びに縦型空気式防舷材の使用方法に関し、さらに詳しくは、水面に浮遊する油が付着して防舷材が膨潤劣化することを抑制できる縦型空気式防舷材用の保護カバーおよび縦型空気式防舷材並びに縦型空気式防舷材の使用方法に関するものである。
The present invention relates to a protective cover for a vertical pneumatic fender, a vertical pneumatic fender, and a method of using the vertical pneumatic fender, and more particularly, to prevent the floating oil from adhering to the water surface. The present invention relates to a protective cover for a vertical pneumatic fender, a vertical pneumatic fender, and a method of using the vertical pneumatic fender that can suppress swelling and deterioration of the plastic.
船舶の接岸時における船体および岸壁の損傷防止等を目的として、岸壁の壁面または舷側に設置される空気式防舷材が知られている。空気式防舷材は、補強材が埋設されたゴムにより形成された中空体である。その中空内部には、空気が封入されていて船舶の接岸時には、封入された空気によって生じる弾性力により、その衝撃を緩和する。
Pneumatic fenders installed on the quay walls or on the shore side are known for the purpose of preventing damage to the hull and quay when the ship is berthing. The pneumatic fender is a hollow body made of rubber in which a reinforcing material is embedded. The inside of the hollow is filled with air, and when the ship touches the shore, the impact is mitigated by the elastic force generated by the enclosed air.
空気式防舷材の形態は、横型と縦型との2種類に大別することができる。横型空気式防舷材は、長手方向を横にした状態で水に浮かべて使用される。縦型空気式防舷材は、中空内部に所定量の水を収容することで、一部を水中に沈めて長手方向を縦にした立設状態で水に浮かべて使用される。
The form of pneumatic fenders can be broadly divided into two types: horizontal and vertical. The horizontal pneumatic fender is used by floating in water with the longitudinal direction being horizontal. The vertical pneumatic fender is used by suspending a predetermined amount of water in the hollow interior and floating on the water in a standing state in which a part thereof is submerged in water and the longitudinal direction is vertical.
ところで、空気式防舷材を設置した水域に油が漂着して滞留する場合、空気式防舷材の外面には水面に浮遊する油が付着した状態になる。従来の空気式防舷材には、このような油に対する考慮がされていないため、この状態が長時間続くと油が付着した部分のゴムが膨潤して劣化する。これにより、空気式防舷材は使用できなくなり耐用期間が短くなるという問題がある。
By the way, when oil strays and stays in the water area where the pneumatic fender is installed, the oil floating on the water surface is attached to the outer surface of the pneumatic fender. Since the conventional pneumatic fender does not consider such oil, when this state continues for a long time, the rubber on the part where the oil adheres swells and deteriorates. As a result, there is a problem that the pneumatic fender cannot be used and the service life is shortened.
縦型ではなく横型空気式防舷材については、防舷材の外面を覆うシート状の保護部材が提案されている(例えば、特許文献1参照)。しかしながら、この保護部材は、船体等との接触に起因する防舷材の外傷を防止することを目的としたものであり、上述した油による膨潤劣化を意図したものではなかった。
For a horizontal pneumatic fender, not a vertical type, a sheet-like protective member that covers the outer surface of the fender has been proposed (see, for example, Patent Document 1). However, this protective member is intended to prevent damage to the fenders caused by contact with the hull or the like, and is not intended for swelling deterioration due to the oil described above.
本発明の目的は、水面に浮遊する油が付着して防舷材が膨潤劣化することを抑制できる縦型空気式防舷材用の保護カバーおよび縦型空気式防舷材並びに縦型空気式防舷材の使用方法を提供することにある。
An object of the present invention is to provide a protective cover for a vertical pneumatic fender, a vertical pneumatic fender, and a vertical pneumatic that can prevent the floating material from adhering to the surface of the water to swell and deteriorate. It is to provide a method of using a fender.
上記目的を達成するため本発明の縦型空気式防舷材用の保護カバーは、円筒状の胴体部の上下両端に連接されたボウル状の鏡部を備えた縦型空気式防舷材に着脱自在に装着される縦型空気式防舷材用の保護カバーであって、前記胴体部の外面の上下方向一部の範囲を被覆する筒状の保護層体と、この保護層体を前記防舷材の所定位置に配置する取り付け部とを備え、前記防舷材の所定位置に配置された際に、前記保護層体により、水面に浮遊する油と前記胴体部の前記保護層体により被覆した範囲とを隔絶可能にすることを特徴とする。
In order to achieve the above object, the protective cover for a vertical pneumatic fender according to the present invention is a vertical pneumatic fender having a bowl-shaped mirror connected to both upper and lower ends of a cylindrical body. A protective cover for a vertical pneumatic fender that is detachably mounted, a cylindrical protective layer body that covers a partial range in the vertical direction of the outer surface of the body part, and the protective layer body An attachment portion disposed at a predetermined position of the fender, and when disposed at a predetermined position of the fender, the protective layer body causes the oil floating on the water surface and the protective layer body of the trunk portion to It is characterized in that the covered area can be isolated.
本発明の縦型空気式防舷材は、円筒状の胴体部と、この胴体部の上下両端に連接されたボウル状の鏡部とを備えた縦型空気式防舷材において、前記胴体の外面の上下方向の一部の範囲を被覆する着脱自在な筒状の保護層体を備え、この保護層体により、水面に浮遊する油と前記胴体部の前記保護層体により被覆した範囲とを隔絶可能にすることを特徴とする。
A vertical pneumatic fender according to the present invention is a vertical pneumatic fender having a cylindrical body part and bowl-shaped mirror parts connected to upper and lower ends of the body part. It is provided with a removable cylindrical protective layer body that covers a part of the outer surface in the vertical direction, and by this protective layer body, the oil floating on the water surface and the range covered by the protective layer body of the trunk portion are provided. It is characterized by enabling isolation.
本発明の別の縦型空気式防舷材は、円筒状の胴体部と、この胴体部の上下両端に連接されたボウル状の鏡部とを備えた縦型空気式防舷材において、前記胴体部の外面の上下方向の一部の範囲を被覆する筒状の保護層体を備え、この保護層体が、耐油性部材により形成されるとともに、加硫接着によって一体化して設けられていて、この保護層体により、水面に浮遊する油と前記胴体部の前記保護層体により被覆した範囲とを隔絶可能にすることを特徴とする。
Another vertical pneumatic fender according to the present invention is a vertical pneumatic fender provided with a cylindrical body and bowl-shaped mirrors connected to both upper and lower ends of the body. A cylindrical protective layer body covering a part of the outer surface of the body part in the vertical direction is provided, and this protective layer body is formed of an oil-resistant member and provided integrally by vulcanization adhesion. The protective layer body makes it possible to isolate the oil floating on the water surface from the range covered by the protective layer body of the body portion.
本発明の縦型空気式防舷材の使用方法は、上記の縦型空気式防舷材を、前記保護層体の上下方向中途の位置を水面位置に設定して設置し、この防舷材を設置した水域に油が浮遊している場合に、前記保護層体により、前記油と前記胴体部の前記保護層体により被覆した範囲とを隔絶することを特徴とする。
The method of using the vertical pneumatic fender according to the present invention is to install the vertical pneumatic fender described above by setting the midway in the vertical direction of the protective layer body to a water surface position. When the oil is floating in the water area where the oil is installed, the protective layer body separates the oil from the area covered by the protective layer body of the trunk portion.
本発明によれば、前記胴体部の外面の上下方向の一部を被覆する筒状の保護層体を設けて、この保護層体により、水面に浮遊する油と前記胴体部の前記保護層体により被覆した範囲とを隔絶可能にするので、保護層体により被覆した範囲が水面に浮遊する油により膨潤劣化することを防止できる。また、この保護層体は、胴体部の外面の上下方向の一部を被覆するだけなので、保護層体を形成する材料を削減するには有利になる。
According to the present invention, a cylindrical protective layer body that covers a part of the outer surface of the body part in the vertical direction is provided, and by this protective layer body, oil floating on the water surface and the protective layer body of the body part are provided. Therefore, it is possible to prevent the area covered by the protective layer body from being swollen and deteriorated by the oil floating on the water surface. Further, since this protective layer body only covers a part of the outer surface of the body part in the vertical direction, it is advantageous for reducing the material forming the protective layer body.
本発明の保護カバーでは、前記保護層体が、前記胴体部の外面と間隔をあけてこの胴体部に外挿され、単独で水に浮く浮力を有している構成にすることもできる。この構成によれば、水面の上下動にしたがって保護層体が独立して上下移動するので、保護層体により、水面に浮遊する油から胴体部の外面を保護し易くなる。
In the protective cover of the present invention, the protective layer body may be extrapolated to the body portion with a space from the outer surface of the body portion, and may have a buoyancy that floats on water alone. According to this configuration, since the protective layer body independently moves up and down as the water surface moves up and down, the protective layer body can easily protect the outer surface of the body portion from the oil floating on the water surface.
或いは、前記保護層体が、前記胴体部の外面に当接してこの胴体部に外挿される構成にすることもできる。この構成によれば、保護層体が胴体部から不用意に離脱する不具合を防止するには有利になる。
Alternatively, the protective layer body can be configured to abut on the outer surface of the body part and be extrapolated to the body part. According to this configuration, it is advantageous to prevent a problem that the protective layer body is inadvertently detached from the body portion.
前記取り付け部を例えば、前記保護層体と前記胴体部の上端に連接された鏡部側とを接続する紐状体により構成する。この構成によれば、必要最小限の取り付け部によって保護層体を安定して防舷材に取り付けることができる。
The attachment part is constituted by, for example, a string-like body that connects the protective layer body and the mirror part side connected to the upper end of the body part. According to this configuration, the protective layer body can be stably attached to the fender with the minimum necessary attachment portion.
前記取り付け部を、前記保護層体と前記胴体部の上端に連接された鏡部側とを接続する紐状体と、前記保護層体と前記胴体部の下端に連接された鏡部側とを接続する紐状体とにより構成することもできる。この構成によれば、一段と安定して保護層体を防舷材に取り付けることができる。
A string-like body connecting the attachment part to the protective layer body and the mirror part side connected to the upper end of the body part, and a mirror part side connected to the protective layer body and the lower end of the body part. It can also be constituted by a string-like body to be connected. According to this structure, a protective layer body can be attached to a fender further stably.
保護層体が、耐油性部材により形成される構成にすると、保護層体により被覆した範囲の膨潤劣化を防止するには有利になる。耐油性部材としては、例えば、アクリロニトリル・ブタジエンゴムを含有する弾性部材を用いる。
When the protective layer body is formed of an oil-resistant member, it is advantageous to prevent swelling deterioration in a range covered with the protective layer body. As the oil resistant member, for example, an elastic member containing acrylonitrile-butadiene rubber is used.
以下、本発明の縦型空気式防舷材用の保護カバーおよび縦型空気式防舷材並びに縦型空気式防舷材の使用方法を、図に示した実施形態に基づいて説明する。
Hereinafter, a protective cover for a vertical pneumatic fender according to the present invention, a vertical pneumatic fender, and a method of using the vertical pneumatic fender will be described based on the embodiments shown in the drawings.
従来の縦型空気式防舷材1A(以下、防舷材1Aという)は、図10に例示するように、円筒状の胴体部1aと、胴体部1aの上下両端に連接されたボウル状の鏡部1bとを備えている。上側の鏡部1bの上端部には口金部1cが設けられ、下側の鏡部1bの下端部には口金部1dが設けられている。一方の口金部1cのみが設けられる防舷材1Aもある。
A conventional vertical pneumatic fender 1A (hereinafter referred to as fender 1A) is, as illustrated in FIG. 10, a cylindrical body 1a and a bowl-like shape connected to both upper and lower ends of the body 1a. The mirror part 1b is provided. A base part 1c is provided at the upper end part of the upper mirror part 1b, and a base part 1d is provided at the lower end part of the lower mirror part 1b. There is also a fender 1A provided with only one base 1c.
胴体部1aおよび鏡部1bは、内層ゴムと外層ゴムとの間に複数の補強層が積層された部材で構成されている。胴体部1aと鏡部1bとにより形成された中空の内部空間に空気Aが充填されるとともに、所定量の水Wが注入される。図面では、胴体部1aと鏡部1bとの境界を二点鎖線で示している。
The body part 1a and the mirror part 1b are configured by a member in which a plurality of reinforcing layers are laminated between an inner layer rubber and an outer layer rubber. Air A is filled in a hollow internal space formed by the body portion 1a and the mirror portion 1b, and a predetermined amount of water W is injected. In the drawing, the boundary between the body portion 1a and the mirror portion 1b is indicated by a two-dot chain line.
口金部1cには、空気Aや水Wを注入するための注入口や防舷材1Aの内圧が過大になることを防止する安全弁、この内圧を測定する圧力センサ等が設けられている。それぞれの口金部1c、1dには別々のガイチェーン5の一端部が接続されている。
The base part 1c is provided with an inlet for injecting air A and water W, a safety valve for preventing the internal pressure of the fender 1A from becoming excessive, a pressure sensor for measuring the internal pressure, and the like. One end of a separate guy chain 5 is connected to each of the cap parts 1c and 1d.
防舷材1Aを岸壁の壁面または舷側に設置する際には、口金部1cに接続されているガイチェーン5の他端部を、岸壁または船体に固定する。口金部1dに接続されているガイチェーン5の他端部には重錘6を接続する。そして、中空の内部空間に空気Aおよび水Wが収容された防舷材1Aを、その一部を海等の水中に沈めて長手方向(胴体部1aの筒軸方向)を縦にした立設状態で海等に浮かべて設置する。
When the fender 1A is installed on the quay wall or on the berth side, the other end of the guy chain 5 connected to the base 1c is fixed to the quay or the hull. A weight 6 is connected to the other end of the guy chain 5 connected to the base 1d. Then, a fender 1A in which air A and water W are housed in a hollow internal space is partly submerged in water such as the sea, and the longitudinal direction (the cylinder axis direction of the body portion 1a) is set up vertically. Float on the sea etc. in a state.
防舷材1Aは、胴体部1aの上下方向中途の位置に水面が位置するように設置される。そのため、防舷材1Aを設置した水域に油Cが漂流して滞留すると、水面に浮遊する油Cが常に胴体部1aに接触する。このまま防舷材1Aを使用し続けると、胴体部1aを形成している外層ゴムが油Cによって膨潤する。この膨潤によって胴体部1aの強度低下等が発生し、防舷材1Aを使用することが不可能になる。
The fender 1A is installed so that the water surface is located at a position in the middle of the body portion 1a in the vertical direction. Therefore, when the oil C drifts and stays in the water area where the fender 1A is installed, the oil C floating on the water surface always contacts the body portion 1a. If the fender 1A is continuously used as it is, the outer layer rubber forming the body portion 1a is swollen by the oil C. This swelling causes a decrease in the strength of the body portion 1a and makes it impossible to use the fender 1A.
そこで、図1、2に例示する本発明の縦型空気式防舷材用の保護カバー2(以下、保護カバー2という)を用いる。この保護カバー2は、胴体部1aの外面の上下方向一部の範囲を被覆する筒状の保護層体3と、保護層体3を防舷材1Aの所定位置に配置する取り付け部4とを備えている。
Therefore, the protective cover 2 for vertical pneumatic fenders of the present invention illustrated in FIGS. 1 and 2 (hereinafter referred to as protective cover 2) is used. This protective cover 2 includes a cylindrical protective layer body 3 that covers a portion of the outer surface of the body portion 1a in the vertical direction, and an attachment portion 4 that arranges the protective layer body 3 at a predetermined position of the fender 1A. I have.
保護層体3は、ゴム等の弾性部材や樹脂等を層状に薄く形成したシートであり、その厚さは例えば1mm以上30mm以下であり、上下方向(筒軸方向)長さは例えば2m~5m、設置水域によっては1m以上3m以下である。保護層体3は、実質的に水が染み込まない仕様になっている。筒状の保護層体3は、周方向にも筒軸方向にも切れ目がなく連続している。保護層体3は例えば、部材を筒状に一体成形して製造する。或いは、複数の部材を接合して筒状の保護層体3を製造する。この場合は、それぞれの部材の接合継ぎ目は、すき間が生じない加工を施して油Cが通過しない仕様にする。防舷材1Aに外挿された筒状の保護層体3により、胴体部1aの外面の上下方向一部の範囲が被覆される。
The protective layer body 3 is a sheet in which an elastic member such as rubber or a resin is thinly formed in a layer shape. Depending on the installation water area, it is 1 m or more and 3 m or less. The protective layer body 3 has a specification that substantially does not soak water. The cylindrical protective layer body 3 is continuous without any breaks in both the circumferential direction and the cylinder axis direction. The protective layer body 3 is manufactured, for example, by integrally molding a member into a cylindrical shape. Alternatively, the cylindrical protective layer body 3 is manufactured by joining a plurality of members. In this case, the joint seam of each member is processed so as not to generate a gap so that the oil C does not pass. The cylindrical protective layer body 3 extrapolated to the fender 1A covers a part of the outer surface of the body portion 1a in the vertical direction.
保護層体3は、耐油性部材を用いて形成することも、非耐油性部材を用いても形成することもできる。また、弾性部材を用いて保護層体3を形成することも、非弾性部材を用いて保護層体3を形成することもできる。例えば、耐油性に優れたアクリロニトリル・ブタジエンゴムを含有する弾性部材を用いて保護層体3を形成する。耐油性を有する弾性部材としては、他にもフッ素ゴム、クロロプレンゴム、塩素化ポリエチレンゴム等を例示できる。
The protective layer body 3 can be formed using an oil-resistant member or a non-oil-resistant member. Moreover, the protective layer body 3 can be formed using an elastic member, or the protective layer body 3 can be formed using a non-elastic member. For example, the protective layer body 3 is formed using an elastic member containing acrylonitrile-butadiene rubber excellent in oil resistance. Other examples of the elastic member having oil resistance include fluorine rubber, chloroprene rubber, and chlorinated polyethylene rubber.
保護層体3の内面と胴体部1aの外面との間は、多少のすき間がある状態にすることも、すき間なく密着させた状態にすることもできる。保護層体3が弾性部材により形成されていると、筒状の保護層体3を拡径させて胴体部1aに外挿させることで、保護層体3の内面と胴体部1aの外面とを密着させることができる。
Between the inner surface of the protective layer body 3 and the outer surface of the body portion 1a, there can be a slight gap or a close contact state without a gap. When the protective layer body 3 is formed of an elastic member, the inner diameter of the protective layer body 3 and the outer surface of the trunk portion 1a are increased by expanding the diameter of the cylindrical protective layer body 3 and extrapolating it to the trunk portion 1a. It can be adhered.
取り付け部4としては例えば、防舷材1Aに外挿させた保護層体3と上側の鏡部1b側とを接続する紐状体4b(上側の紐状体4b)およびこの保護層体3と下側の鏡部1b側とを接続する紐状体4b(下側の紐状体4b)を用いる。上側の紐状体4bによって、保護層体3の上端部と上側の鏡部1bの表面とを直接接続する、または、保護層体3の上端部と上側の鏡部1bに設けられた口金部1cとを接続する。下側の紐状体4bによって、保護層体3の下端部と下側の鏡部1bの表面とを直接接続する、または、保護層体3の下端部と下側の鏡部1bに設けられた口金部1dとを接続する。上側の紐状体4bだけで保護層体3を安定して防舷材1Aに固定することができれば、下側の紐状体4bを省略することもできる。
As the attachment part 4, for example, a string 4b (upper string 4b) connecting the protective layer 3 extrapolated to the fender 1A and the upper mirror 1b side, and the protective layer 3 A string-like body 4b (lower string-like body 4b) that connects the lower mirror part 1b side is used. The upper string-like body 4b directly connects the upper end portion of the protective layer body 3 and the surface of the upper mirror portion 1b, or the cap portion provided on the upper end portion of the protective layer body 3 and the upper mirror portion 1b. 1c is connected. The lower string-like body 4b directly connects the lower end portion of the protective layer body 3 and the surface of the lower mirror portion 1b, or is provided on the lower end portion of the protective layer body 3 and the lower mirror portion 1b. The base 1d is connected. If the protective layer body 3 can be stably fixed to the fender 1A only with the upper string-like body 4b, the lower string-like body 4b can be omitted.
この実施形態では、上側の紐状体4bの下端部は、接続部材4aを介して保護層体3の上端開口縁部に接続されている。上側の紐状体4bの上端部は、口金部1cに外嵌された固定部材4cを介して口金部1cに接続されている。下側の紐状体4bの上端部は、接続部材4aを介して保護層体3の下端開口縁部に接続されている。下側の紐状体4bの下端部は、口金部1dに外嵌された固定部材4cを介して口金部1dに接続されている。
In this embodiment, the lower end portion of the upper string-like body 4b is connected to the upper end opening edge portion of the protective layer body 3 through the connection member 4a. The upper end part of the upper string-like body 4b is connected to the base part 1c via a fixing member 4c fitted on the base part 1c. The upper end portion of the lower string-like body 4b is connected to the lower end opening edge portion of the protective layer body 3 through the connection member 4a. A lower end portion of the lower string-like body 4b is connected to the base portion 1d via a fixing member 4c fitted on the base portion 1d.
紐状体4bとしては、樹脂製や天然繊維製のロープや金属チェーン等を用いることができる。紐状体4bとして樹脂製や天然繊維製のロープを用いると、紐状体4bに起因して鏡部1bの表面に傷が生じることを防止するには有利になる。
As the string-like body 4b, a rope made of resin or natural fiber, a metal chain, or the like can be used. Using a rope made of resin or natural fiber as the string-like body 4b is advantageous for preventing the surface of the mirror portion 1b from being damaged due to the string-like body 4b.
この保護カバー2を使用する場合、中空の内部空間に空気Aが収容された防舷材1Aに地上や船上で保護カバー2を取り付ける。その後、図1に例示するように防舷材1Aを岸壁の壁面または舷側に設置する。その後、防舷材1Aの内部に水Wを注入して保護カバー2(保護層体3)の上下方向中途の位置を水面位置に設定する。
When this protective cover 2 is used, the protective cover 2 is attached to the fender 1A in which air A is housed in a hollow internal space on the ground or on the ship. Thereafter, as illustrated in FIG. 1, the fender 1 </ b> A is installed on the quay wall or on the shore side. Thereafter, water W is poured into the fender 1A to set the position in the middle of the protective cover 2 (protective layer body 3) in the vertical direction as the water surface position.
防舷材1Aを設置した水域に油Cが漂流してきて防舷材1Aの周囲が水面に浮遊する油Cで囲まれると、保護層体3の外面に油Cが付着した状態が続く。胴体部1aは保護層体3によって被覆されているので油Cが付着することがなく、油Cとは隔絶される。油Cは水面に伴って変動するが、港湾等での平時の水面の上下変動は1~2m程度である。また、防舷材1Aはある程度、波(水面)と同調して上下移動するので水面位置の上下変動範囲は胴体部1aの範囲内になる。したがって、水面位置の上下変動範囲に応じて保護層体3の上下方向(筒軸方向)長さおよび保護層体3で被覆する上下範囲を決定するとよい。
When the oil C drifts in the water area where the fender 1A is installed and the periphery of the fender 1A is surrounded by the oil C floating on the water surface, the state where the oil C adheres to the outer surface of the protective layer 3 continues. Since the body part 1a is covered with the protective layer body 3, the oil C does not adhere to it and is isolated from the oil C. Oil C fluctuates with the water surface, but the vertical fluctuation of the water surface during normal times at a port etc. is about 1 to 2 m. In addition, since the fender 1A moves up and down in synchronism with the wave (water surface) to some extent, the vertical fluctuation range of the water surface position falls within the range of the body portion 1a. Therefore, the vertical direction (cylinder axis direction) length of the protective layer body 3 and the vertical range covered with the protective layer body 3 may be determined according to the vertical fluctuation range of the water surface position.
保護層体3の内面と胴体部1aの外面との間に多少のすき間があっても、水面位置が保護層体3の上端位置を超える、或いは、水面位置が保護層体3の下端位置よりも下がらなければ、両者のすき間に油Cが入り込むことはない。したがって、波が平時よりも高い場合を除いて、防舷材1Aの保護層体3により被覆された範囲は油Cと隔絶され、平時においては防舷材1Aに油Cが付着することを回避できる。平時ではない時(波が高い時)は防舷材1Aの使用を控えるとよい。それ故、本発明の保護カバー2を用いることにより、水面に浮遊する油Cによる防舷材1Aの膨潤劣化を効果的に抑制できる。また、保護層体3は、胴体部1aの外面の上下方向の一部を被覆するだけなので、保護層体3を形成する材料を削減するには有利になる。
Even if there is a slight gap between the inner surface of the protective layer body 3 and the outer surface of the body portion 1a, the water surface position exceeds the upper end position of the protective layer body 3, or the water surface position is lower than the lower end position of the protective layer body 3. If not, oil C does not enter between the gaps. Therefore, unless the wave is higher than normal, the area covered with the protective layer 3 of the fender 1A is isolated from the oil C, and the oil C is prevented from adhering to the fender 1A in normal times. it can. When it is not normal (when waves are high), it is better to refrain from using the fender 1A. Therefore, by using the protective cover 2 of the present invention, the swelling deterioration of the fender 1A due to the oil C floating on the water surface can be effectively suppressed. Further, since the protective layer body 3 only covers a part of the outer surface of the body portion 1a in the vertical direction, it is advantageous for reducing the material forming the protective layer body 3.
また、層状の薄い保護層体3を用いるので、防舷材1Aに保護カバー2を取り付けて使用しても防舷材1Aの圧縮および復元変形が大幅に困難になることもない。したがって、保護カバー2によって防舷材1Aの衝撃緩和性能等に実質的な悪影響は生じない。
Further, since the thin protective layer body 3 is used, even when the protective cover 2 is attached to the fender 1A, the fender 1A is not significantly difficult to be compressed and restored. Therefore, the protective cover 2 does not cause a substantial adverse effect on the impact mitigation performance of the fender 1A.
非耐油性部材により保護層体3を形成すると、耐油性部材により形成した場合に比して、付着した油Cによって保護層体3は早期に膨潤等により劣化する。そのため、保護層体3の劣化を発見した際、或いは、予め設定された期間経過後に、劣化した保護層体3を防舷材1Aから取り外して新しい保護層体3に交換する。或いは、新しい保護カバー2に交換してもよい。
When the protective layer body 3 is formed of a non-oil resistant member, the protective layer body 3 is deteriorated due to swelling or the like earlier due to the oil C adhering than when the protective layer body 3 is formed of an oil resistant member. Therefore, when the deterioration of the protective layer body 3 is discovered or after a preset period has elapsed, the deteriorated protective layer body 3 is removed from the fender 1A and replaced with a new protective layer body 3. Alternatively, the protective cover 2 may be replaced with a new one.
耐油性部材により保護層体3を形成すると、非耐油性部材により形成した場合に比して長期に渡って、保護層体3により被覆した範囲の膨潤劣化を防止することができる。それ故、新しい保護層体3(保護カバー2)に交換する必要がなくなる。或いは新しい保護層体3(保護カバー2)への交換頻度を少なくすることができる。
When the protective layer body 3 is formed of an oil resistant member, it is possible to prevent swelling deterioration in a range covered with the protective layer body 3 over a long period of time as compared with the case of forming it with a non-oil resistant member. Therefore, it is not necessary to replace with a new protective layer body 3 (protective cover 2). Alternatively, the frequency of replacement with a new protective layer body 3 (protective cover 2) can be reduced.
保護層体3が、胴体部1aの外面に当接して胴体部1aに外挿される構成にすれば、保護層体3が胴体部1aから不用意に離脱する不具合を防止するには有利になる。保護層体3の内面と胴体部1aの外面とが密着していると、保護層体3が防舷材1Aに対してずれ難くなるという利点があるので、取り付け部4の強度を低く設定することも可能になる。保護層体3の内面と胴体部1aの外面とを密着させる場合には、保護層体3を防舷材1Aの圧縮および復元変形に追従することができる弾性部材により形成するとよい。
If the protective layer body 3 is configured to come into contact with the outer surface of the body portion 1a and be extrapolated to the body portion 1a, it is advantageous to prevent a problem that the protective layer body 3 is inadvertently detached from the body portion 1a. . If the inner surface of the protective layer body 3 and the outer surface of the body portion 1a are in close contact with each other, there is an advantage that the protective layer body 3 is difficult to be displaced with respect to the fender 1A, so the strength of the mounting portion 4 is set low. It becomes possible. When the inner surface of the protective layer body 3 and the outer surface of the body portion 1a are brought into close contact with each other, the protective layer body 3 may be formed of an elastic member that can follow the compression and decompression deformation of the fender 1A.
保護層体3の内面と胴体部1aの外面との間にすき間を設けていると、保護層体3によって防舷材1Aの圧縮および復元変形が影響を受け難くなるという利点がある。また、防舷材1Aの圧縮および復元変形に追従するために要求される伸縮性等が低くなるので、保護層体3として採用できる部材の選択肢が広がる。
If a gap is provided between the inner surface of the protective layer body 3 and the outer surface of the body portion 1a, there is an advantage that the compression and decompression deformation of the fender 1A is hardly affected by the protective layer body 3. Moreover, since the elasticity etc. requested | required in order to follow the compression and decompression deformation | transformation of the fender 1A become low, the choice of the member which can be employ | adopted as the protective layer body 3 spreads.
この実施形態では取り付け部4を、保護層体3と胴体部1aの上端に連接された鏡部1b側とを接続する紐状体4bと、保護層体3と胴体部1aの下端に連接された鏡部1b側とを接続する紐状体4bとにより構成しているので、保護層体3と胴体部1aの下端に連接された鏡部1b側とを接続する紐状体4bを設けない場合に比して、一段と安定して保護層体3を防舷材1Aに取り付けることができる。
In this embodiment, the attachment part 4 is connected to the lower end of the protective layer body 3 and the body part 1a, the string-like body 4b connecting the protective layer body 3 and the mirror part 1b connected to the upper end of the body part 1a. The string-like body 4b that connects the mirror part 1b side is not provided, so that the string-like body 4b that connects the protective layer body 3 and the mirror part 1b side connected to the lower end of the body part 1a is not provided. As compared with the case, the protective layer body 3 can be attached to the fender 1A more stably.
また、取り付け部4を保護層体3と胴体部1aの上端に連接された鏡部1b側とを接続する紐状体4bにより構成することもできる。この構成にすれば、必要最小限の取り付け部4によって保護層体3を安定して防舷材1Aに取り付けることができる。
Moreover, the attachment part 4 can also be comprised by the string-like body 4b which connects the protective layer body 3 and the mirror part 1b side connected with the upper end of the trunk | drum 1a. According to this configuration, the protective layer body 3 can be stably attached to the fender 1A with the minimum necessary attaching portions 4.
図3~5に例示する保護カバー2の別の実施形態では、保護層体3を単独で水に浮く浮力を有する構成にしている。この保護カバー2では保護層体3が、胴体部1aに外挿される筒状の伸縮性を有する気泡構造の部材で構成されている。例えば独立気泡構造の樹脂やゴム等を保護層体3として用いることができる。或いは、図1、2で例示した実施形態の保護層体3に独立気泡構造の樹脂やゴム等の浮力部を付加することにより、この実施形態の保護層体3にすることもできる。
In another embodiment of the protective cover 2 illustrated in FIGS. 3 to 5, the protective layer body 3 is configured to have a buoyancy that floats on water alone. In this protective cover 2, the protective layer body 3 is formed of a tubular structure member having a tubular stretchability that is externally inserted into the body portion 1 a. For example, a closed cell structure resin, rubber, or the like can be used as the protective layer body 3. Alternatively, the protective layer body 3 of this embodiment can be obtained by adding a buoyancy portion such as a closed cell structure resin or rubber to the protective layer body 3 of the embodiment illustrated in FIGS.
この保護層体3は、図3で示すように胴体部1aの外面と間隔をあけて胴体部1aに外挿され、水面の上下動にしたがって独立して上下移動する。
As shown in FIG. 3, the protective layer body 3 is extrapolated to the body portion 1a with a space from the outer surface of the body portion 1a, and moves up and down independently according to the vertical movement of the water surface.
船舶が接岸する際には、図5で示すように保護層体3は防舷材1Aと岸壁Sの間、防舷材1Aと船体Bの間に挟まれることになるが、保護層体3は層状で薄いので、防舷材1Aの圧縮および復元変形が大幅に困難になることもない。したがって、保護カバー2によって防舷材1Aの衝撃緩和性能等に実質的な悪影響は生じない。
When the ship is berthing, the protective layer body 3 is sandwiched between the fender 1A and the quay S and between the fender 1A and the hull B as shown in FIG. Since the layer is thin and thin, the compression and decompression deformation of the fender 1A is not significantly difficult. Therefore, the protective cover 2 does not cause a substantial adverse effect on the impact mitigation performance of the fender 1A.
この実施形態によれば、水面の上下動にしたがって保護層体3が独立して上下移動するので、保護層体3により、水面に浮遊する油Cから胴体部1aの外面を保護し易くなる。保護層体3が十分な浮力を有しているので防舷材1Aに固定する取り付け部4を不要にできる。ただし、この実施形態では防舷材1Aを設置する際および設置場所から引き揚げる際に保護層体3が防舷材1Aから外れることを防止するため、余長を有する上側の紐状体4bによって保護層体3を防舷材1Aに取り付けている。
According to this embodiment, since the protective layer body 3 moves up and down independently as the water surface moves up and down, the protective layer body 3 makes it easy to protect the outer surface of the body portion 1a from the oil C floating on the water surface. Since the protective layer body 3 has sufficient buoyancy, the attachment part 4 fixed to the fender 1A can be dispensed with. However, in this embodiment, the protective layer body 3 is protected by the upper string-like body 4b having a surplus length in order to prevent the protective layer body 3 from being detached from the fender 1A when the fender 1A is installed and lifted from the installation location. The layer body 3 is attached to the fender 1A.
単独で水に浮く浮力を有する保護層体3を備えた保護カバー2の別の実施形態を図6~8で示す。
6 to 8 show another embodiment of the protective cover 2 provided with the protective layer body 3 having a buoyancy that floats on water alone.
この保護カバー2では、胴体部1aに外挿される保護層体3の一部が浮力を有する浮力部3aで構成されている。保護層体3としては、図1~2で例示した実施形態の保護層体3を利用することができる。浮力部3aとしては、例えば独立気泡構造の樹脂やゴム等を用いることができる。浮力部3aは船舶が接岸する際に、船体Bや岸壁Sに押圧されない位置で対向して設けることが好ましい。この保護層体3は、図7で示すように胴体部1aの外面と間隔をあけて胴体部1aに外挿され、水面の上下動にしたがって独立して上下移動する。
In this protective cover 2, a part of the protective layer body 3 extrapolated to the body portion 1a is constituted by a buoyancy portion 3a having buoyancy. As the protective layer body 3, the protective layer body 3 of the embodiment illustrated in FIGS. 1 and 2 can be used. As the buoyancy part 3a, for example, a closed cell resin or rubber can be used. The buoyancy part 3a is preferably provided facing the hull B or the quay wall S at a position where it is not pressed when the ship berths. As shown in FIG. 7, the protective layer body 3 is extrapolated to the body portion 1a with a space from the outer surface of the body portion 1a, and moves up and down independently according to the vertical movement of the water surface.
この実施形態では、紐状の取り付け部4の一端部を保護層体3のそれぞれの浮力部3aに相当する位置に接続し、他端部を岸壁Sに接続している。保護層体3をこのように岸壁Sに接続することで保護層体3の筒軸心を中心にした回転を防ぐことができる。
In this embodiment, one end of the string-like attachment portion 4 is connected to a position corresponding to each buoyancy portion 3a of the protective layer body 3, and the other end is connected to the quay S. By connecting the protective layer body 3 to the quay S in this way, the rotation of the protective layer body 3 around the cylinder axis can be prevented.
船舶が接岸する際には、図8で示すように保護層体3は防舷材1Aと岸壁Sとの間、防舷材1Aと船体Bとの間に挟まれることになるが、保護層体3は層状で薄いので、防舷材1Aの圧縮および復元変形が大幅に困難になることもない。したがって、保護カバー2によって防舷材1Aの衝撃緩和性能等に実質的な悪影響は生じない。浮力部3aは周方向に連続して全周に設けることも、周方向の断続的に設けることもできる。この実施形態のように船体Bや岸壁Sに押圧されない周方向位置に配置すると、浮力部3aは過度に圧縮されることがなく、損傷防止には有利になる。
When the ship is berthing, the protective layer body 3 is sandwiched between the fender 1A and the quay S and between the fender 1A and the hull B as shown in FIG. Since the body 3 is layered and thin, compression and decompression deformation of the fender 1A are not significantly difficult. Therefore, the protective cover 2 does not cause a substantial adverse effect on the impact mitigation performance of the fender 1A. The buoyancy part 3a can be provided continuously in the circumferential direction on the entire circumference or intermittently in the circumferential direction. If it arrange | positions in the circumferential direction position which is not pressed by the hull B or the quay S like this embodiment, the buoyancy part 3a will not be compressed too much and it will be advantageous for damage prevention.
また、本発明の縦型空気式防舷材1(以下、防舷材1という)は、従来の防舷材1Aに対して上述した種々の保護層体3を着脱自在に備えたものである。
Moreover, the vertical pneumatic fender 1 (hereinafter referred to as fender 1) of the present invention is provided with the above-described various protective layer bodies 3 detachably with respect to the conventional fender 1A. .
防舷材1の別の実施形態を図9に例示する。
Another embodiment of the fender 1 is illustrated in FIG.
この防舷材1は、胴体部1aの外面の上下方向一部の範囲を被覆する筒状の保護層体3を備えていて、この保護層体3が加硫接着によって防舷材1として一体化している。即ち、保護層体3の内面が、対向する面とすき間なく密着固定されている。従来の防舷材1Aの外面に保護層体3を追加的に加硫接着することも、従来の防舷材1Aの外層ゴムに置き換えて保護層体3を加硫接着することもできる。
The fender 1 includes a cylindrical protective layer body 3 that covers a portion of the outer surface of the body portion 1a in the vertical direction, and the protective layer body 3 is integrated as a fender 1 by vulcanization adhesion. It has become. That is, the inner surface of the protective layer body 3 is tightly fixed with no gap between the opposing surface. The protective layer body 3 can be additionally vulcanized and bonded to the outer surface of the conventional fender 1A, or the protective layer body 3 can be vulcanized and bonded to the outer layer rubber of the conventional fender 1A.
保護層体3としては、上述した種々の仕様を用いることができる。ただし、保護層体3のみが着脱できる仕様ではないので、保護層体3を交換することができない。そのため、保護層体3は耐油性部材により形成される。また、保護層体3は圧縮および復元変形に追従する必要があるので、ゴム等の弾性部材により形成されることが好ましい。
As the protective layer body 3, the various specifications described above can be used. However, since it is not the specification which only the protective layer body 3 can attach or detach, the protective layer body 3 cannot be replaced | exchanged. Therefore, the protective layer body 3 is formed of an oil resistant member. Moreover, since it is necessary for the protective layer body 3 to follow compression and decompression deformation, it is preferably formed of an elastic member such as rubber.
防舷材1の使用方法は上述した実施形態と同様である。この防舷材1によれば、防舷材1の保護層体3により被覆された範囲は水面に浮遊する油Cと隔絶され、実質的に防舷材1に油Cが付着することを回避できる。それ故、水面に浮遊する油Cによる防舷材1の膨潤劣化を効果的に抑制できる。
The method of using the fender 1 is the same as in the above-described embodiment. According to the fender 1, the area covered by the protective layer 3 of the fender 1 is isolated from the oil C floating on the water surface, and the oil C is substantially prevented from adhering to the fender 1. it can. Therefore, the swelling deterioration of the fender 1 due to the oil C floating on the water surface can be effectively suppressed.
この防舷材1では上述した取り付け部4が不要になるという利点、保護層体3がずれないという利点がある。
This fender 1 has the advantage that the mounting portion 4 described above is not necessary and the advantage that the protective layer body 3 does not shift.
1 本発明の縦型空気式防舷材
1A 従来の縦型空気式防舷材
1a 胴体部
1b 鏡部
1c 口金部(上側)
1d 口金部(下側)
2 保護カバー
3 保護層体
3a 浮力部
4 取り付け部
4a 接続部材
4b 紐状体
4c 固定部材
5 ガイチェーン
6 重錘 DESCRIPTION OFSYMBOLS 1 Vertical pneumatic fender 1A of this invention Conventional vertical pneumatic fender 1a Body part 1b Mirror part 1c Base part (upper side)
1d Base part (lower side)
2Protective cover 3 Protective layer body 3a Buoyancy part 4 Attachment part 4a Connection member 4b String-like body 4c Fixing member 5 Guy chain 6 Weight
1A 従来の縦型空気式防舷材
1a 胴体部
1b 鏡部
1c 口金部(上側)
1d 口金部(下側)
2 保護カバー
3 保護層体
3a 浮力部
4 取り付け部
4a 接続部材
4b 紐状体
4c 固定部材
5 ガイチェーン
6 重錘 DESCRIPTION OF
1d Base part (lower side)
2
Claims (12)
- 円筒状の胴体部の上下両端に連接されたボウル状の鏡部を備えた縦型空気式防舷材に着脱自在に装着される縦型空気式防舷材用の保護カバーであって、
前記胴体部の外面の上下方向一部の範囲を被覆する筒状の保護層体と、この保護層体を前記防舷材の所定位置に配置する取り付け部とを備え、前記防舷材の所定位置に配置された際に、前記保護層体により、水面に浮遊する油と前記胴体部の前記保護層体により被覆した範囲とを隔絶可能にすることを特徴とする縦型空気式防舷材用の保護カバー。 A protective cover for a vertical pneumatic fender that is detachably attached to a vertical pneumatic fender having a bowl-shaped mirror connected to both upper and lower ends of a cylindrical body,
A cylindrical protective layer covering a part of the outer surface of the body part in the vertical direction; and a mounting part for disposing the protective layer at a predetermined position of the fender. A vertical pneumatic fender capable of isolating oil floating on the water surface from a range covered by the protective layer body of the trunk portion when disposed at a position. Protective cover for. - 前記保護層体が、前記胴体部の外面と間隔をあけてこの胴体部に外挿され、単独で水に浮く浮力を有している請求項1に記載の縦型空気式防舷材用の保護カバー。 2. The vertical pneumatic fender according to claim 1, wherein the protective layer body is extrapolated to the body portion at a distance from the outer surface of the body portion and has a buoyancy that floats on water alone. Protective cover.
- 前記保護層体が、前記胴体部の外面に当接してこの胴体部に外挿される請求項1に記載の縦型空気式防舷材用の保護カバー。 2. The protective cover for a vertical pneumatic fender according to claim 1, wherein the protective layer body comes into contact with an outer surface of the body part and is extrapolated to the body part.
- 前記取り付け部が、前記保護層体と前記胴体部の上端に連接された鏡部側とを接続する紐状体により構成される請求項1~3のいずれかに記載の縦型空気式防舷材用の保護カバー。 The vertical pneumatic fender according to any one of claims 1 to 3, wherein the attachment portion is configured by a string-like body connecting the protective layer body and a mirror portion side connected to an upper end of the body portion. Protective cover for materials.
- 前記取り付け部が、前記保護層体と前記胴体部の上端に連接された鏡部側とを接続する紐状体と、前記保護層体と前記胴体部の下端に連接された鏡部側とを接続する紐状体とにより構成される請求項1~3のいずれかに記載の縦型空気式防舷材用の保護カバー。 The attachment portion connects the protective layer body and a mirror portion side connected to the upper end of the body portion, and a mirror portion side connected to the protective layer body and the lower end of the body portion. The protective cover for a vertical pneumatic fender according to any one of claims 1 to 3, comprising a string-like body to be connected.
- 前記保護層体が、耐油性部材により形成される請求項1~5のいずれかに記載の縦型空気式防舷材用の保護カバー。 The protective cover for a vertical pneumatic fender according to any one of claims 1 to 5, wherein the protective layer body is formed of an oil-resistant member.
- 前記耐油性部材が、アクリロニトリル・ブタジエンゴムを含有する弾性部材である請求項6に記載の縦型空気式防舷材用の保護カバー。 The protective cover for a vertical pneumatic fender according to claim 6, wherein the oil-resistant member is an elastic member containing acrylonitrile-butadiene rubber.
- 円筒状の胴体部と、この胴体部の上下両端に連接されたボウル状の鏡部とを備えた縦型空気式防舷材において、
前記胴体の外面の上下方向の一部の範囲を被覆する着脱自在な筒状の保護層体を備え、この保護層体により、水面に浮遊する油と前記胴体部の前記保護層体により被覆した範囲とを隔絶可能にすることを特徴とする縦型空気式防舷材。 In a vertical pneumatic fender having a cylindrical body part and a bowl-shaped mirror part connected to both upper and lower ends of the body part,
A removable cylindrical protective layer body that covers a part of the vertical direction of the outer surface of the body is provided, and this protective layer body is covered with oil floating on the water surface and the protective layer body of the body part. A vertical pneumatic fender that makes it possible to isolate the range. - 円筒状の胴体部と、この胴体部の上下両端に連接されたボウル状の鏡部とを備えた縦型空気式防舷材において、
前記胴体部の外面の上下方向の一部の範囲を被覆する筒状の保護層体を備え、この保護層体が、耐油性部材により形成されるとともに、加硫接着によって一体化して設けられていて、この保護層体により、水面に浮遊する油と前記胴体部の前記保護層体により被覆した範囲とを隔絶可能にすることを特徴とする縦型空気式防舷材。 In a vertical pneumatic fender having a cylindrical body part and a bowl-shaped mirror part connected to both upper and lower ends of the body part,
A cylindrical protective layer body covering a part of the outer surface of the body part in the vertical direction is provided, and the protective layer body is formed of an oil-resistant member and is provided integrally by vulcanization adhesion. Thus, a vertical pneumatic fender capable of isolating the oil floating on the water surface from the area covered by the protective layer body of the trunk portion by the protective layer body. - 前記保護層体が、耐油性部材により形成される請求項8に記載の縦型空気式防舷材。 The vertical pneumatic fender according to claim 8, wherein the protective layer body is formed of an oil-resistant member.
- 前記耐油性部材が、アクリロニトリル・ブタジエンゴムを含有する弾性部材である請求項9または10に記載の縦型空気式防舷材。 The vertical pneumatic fender according to claim 9 or 10, wherein the oil-resistant member is an elastic member containing acrylonitrile-butadiene rubber.
- 請求項8~11のいずれかに記載の縦型空気式防舷材を、前記保護層体の上下方向中途の位置を水面位置に設定して設置し、この防舷材を設置した水域に油が浮遊している場合に、前記保護層体により、前記油と前記胴体部の前記保護層体により被覆した範囲とを隔絶する縦型空気式防舷材の使用方法。 The vertical pneumatic fender according to any one of claims 8 to 11 is installed with the midway position in the vertical direction of the protective layer body set to a water surface position, and oil is added to the water area where the fender is installed. Is used, the protective layer body separates the oil from the area covered by the protective layer body of the body portion.
Priority Applications (1)
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SG11201708583QA SG11201708583QA (en) | 2015-04-20 | 2016-03-28 | Protective cover for vertical pneumatic fender, vertical pneumatic fender, and usage for vertical pneumatic fender |
Applications Claiming Priority (2)
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JP2015085666A JP6524778B2 (en) | 2015-04-20 | 2015-04-20 | Use of protective covers for vertical pneumatic fenders and use of vertical pneumatic fenders and vertical pneumatic fenders |
JP2015-085666 | 2015-04-20 |
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WO2016170926A1 true WO2016170926A1 (en) | 2016-10-27 |
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PCT/JP2016/059891 WO2016170926A1 (en) | 2015-04-20 | 2016-03-28 | Protective cover for vertical pneumatic fender, vertical pneumatic fender, and usage for vertical pneumatic fender |
Country Status (3)
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JP (1) | JP6524778B2 (en) |
SG (1) | SG11201708583QA (en) |
WO (1) | WO2016170926A1 (en) |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58146610A (en) * | 1982-02-26 | 1983-09-01 | Sumitomo Rubber Ind Ltd | Floating type fender |
JPH0355397U (en) * | 1989-10-05 | 1991-05-28 | ||
JPH0525812A (en) * | 1991-07-19 | 1993-02-02 | Yokohama Rubber Co Ltd:The | Ship fender protecting member and manufacturing method thereof |
JP2001348840A (en) * | 2000-06-07 | 2001-12-21 | Yokohama Rubber Co Ltd:The | Protector for fender facility |
JP2009250114A (en) * | 2008-04-07 | 2009-10-29 | Panasonic Corp | Blade installing device of air blower |
JP2010076154A (en) * | 2008-09-24 | 2010-04-08 | Yokohama Rubber Co Ltd:The | Method for producing reinforced rubber hose |
JP2014218866A (en) * | 2013-05-10 | 2014-11-20 | 横浜ゴム株式会社 | Vertical air fender |
-
2015
- 2015-04-20 JP JP2015085666A patent/JP6524778B2/en active Active
-
2016
- 2016-03-28 SG SG11201708583QA patent/SG11201708583QA/en unknown
- 2016-03-28 WO PCT/JP2016/059891 patent/WO2016170926A1/en active Application Filing
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58146610A (en) * | 1982-02-26 | 1983-09-01 | Sumitomo Rubber Ind Ltd | Floating type fender |
JPH0355397U (en) * | 1989-10-05 | 1991-05-28 | ||
JPH0525812A (en) * | 1991-07-19 | 1993-02-02 | Yokohama Rubber Co Ltd:The | Ship fender protecting member and manufacturing method thereof |
JP2001348840A (en) * | 2000-06-07 | 2001-12-21 | Yokohama Rubber Co Ltd:The | Protector for fender facility |
JP2009250114A (en) * | 2008-04-07 | 2009-10-29 | Panasonic Corp | Blade installing device of air blower |
JP2010076154A (en) * | 2008-09-24 | 2010-04-08 | Yokohama Rubber Co Ltd:The | Method for producing reinforced rubber hose |
JP2014218866A (en) * | 2013-05-10 | 2014-11-20 | 横浜ゴム株式会社 | Vertical air fender |
Also Published As
Publication number | Publication date |
---|---|
SG11201708583QA (en) | 2017-11-29 |
JP2016204909A (en) | 2016-12-08 |
JP6524778B2 (en) | 2019-06-05 |
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