JP5865121B2 - Fender - Google Patents

Description

  The present invention relates to a fender.

  When the ship comes into berthing, the fender for preventing damage to the hull and the quay is fixed to the quay with, for example, a bolt that penetrates the flange portion (see Patent Document 1).

  For fenders with a rubber flange with an iron plate embedded inside, the flange part is provided with a through-hole that penetrates the iron plate and the rubber layer for joining to the quay, but when installing / removing the fender material An anchor bolt may contact the rubber part of a through-hole, and may damage a rubber part. Once the rubber part is damaged, seawater and oxygen enter from the damaged part, and rust is generated on the internal iron plate. Due to this rust, the interface between the rubber layer and the iron plate may be peeled off and the rubber layer may fall off.

JP 10-183577 A

  In view of the above facts, the present invention provides a fender that prevents damage to the rubber layer surface by providing a metal sleeve in a through hole that contacts the anchor bolt and avoiding contact between the rubber layer and the anchor bolt. For the purpose.

Fender according to claim 1 includes a main body serving as a cushioning material is provided on both sides of the body, a flange metal plate having a plurality of through-portion is a rubber layer embedded therein, said metal plate An anchor bolt installed on the quay is provided corresponding to the penetrating portion of the through-hole and penetrating the flange with an inner diameter smaller than the penetrating portion by covering the inner peripheral wall of the penetrating portion with the rubber layer. A plurality of through holes that are inserted and fastened to the quay by the flange, a metal sleeve that is fitted in the through hole and penetrates the metal plate and the rubber layer in the thickness direction, and both ends of the metal sleeve Are provided so as to be parallel to the surface of the rubber layer, and provided at the end of the metal sleeve facing the quay wall, embedded in the rubber layer and flush with the flange. And the outer diameter is Smaller than the inner diameter of the passage portion, which is provided at an end portion of the sea side of the metal sleeve, characterized in that the outer diameter and a larger flange portion than the inner diameter of the through portion.

  In the fender according to the first aspect, it is possible to prevent damage to the surface of the rubber layer by providing a metal sleeve in the through hole that contacts the anchor bolt and avoiding contact between the rubber layer and the anchor bolt.

  The fender according to claim 2 is characterized in that both end portions of the metal sleeve have flange portions parallel to the surface of the rubber layer.

  In the fender according to claim 2, since the flange portion is provided at both ends of the metal sleeve, the metal sleeve is hard to come off, and the anchor bolt and the fender are fastened by metal contact, thereby securing the fixation. Can be.

  The fender according to claim 3 is characterized in that the metal sleeve is made of stainless steel or a rust-proof metal.

  In the fender according to claim 3, the metal sleeve itself is made of stainless steel or rust-proof metal, so that the metal sleeve itself can be prevented from being rusted.

  The fender according to claim 4 is characterized in that the metal sleeve is vulcanized and bonded to the rubber layer.

  In the fender according to the fourth aspect, the metal sleeve is vulcanized and bonded to the rubber layer, so that the metal sleeve is provided in advance as a part of the product, and the metal sleeve can be prevented from falling off.

  The fender according to claim 5 is characterized in that an inner wall of the through hole is covered with the rubber layer, and the rubber layer is filled between the metal plate and the metal sleeve.

  In the fender according to claim 5, since the rubber layer exists between the metal plate and the metal sleeve, even if the metal sleeve rusts, the rubber layer covers the metal plate inside the fender. Can have a structure that does not reach rust.

  Since the present invention is configured as described above, a metal sleeve is provided in a through hole that comes into contact with the anchor bolt, and a fender that prevents damage to the rubber layer surface by avoiding contact between the rubber layer and the anchor bolt; can do.

It is a partially broken perspective view which shows the structure of the fender which concerns on embodiment of this invention. It is the partially broken perspective view which expanded a part of fender shown in FIG. It is sectional drawing of the fender which concerns on embodiment of this invention. It is sectional drawing which shows the fastening part of the fender shown in FIG.

  Hereinafter, a fender mounting structure using the fender according to the first embodiment of the present invention will be described with reference to the drawings.

  As shown in FIGS. 1 to 4, the fender 10 includes a rubber cylinder 12 serving as a cushioning material, and flanges 14 and 15 that are wide portions provided at both ends in the longitudinal direction of the cylinder 12. .

  A substantially donut-shaped embedded iron plate 16 is embedded in the flanges 14 and 15, and more preferably vulcanized and bonded to the rubber layer 20 forming the flanges 14 and 15.

  A flange 14 on one end side of the cylindrical body 12 is fixed to a quay 40 such as a concrete structure by anchor bolts 22, and a flange 15 on the other end side has a rectangular front surface (not shown) made of resin, for example, in preparation for contact with a ship. A plate may be attached.

  The flange 14 is provided with a plurality of through holes 18A through which the anchor bolts 22 are inserted, and a metal sleeve 30 made of metal such as stainless steel is inserted through the through holes 18A. The anchor bolt 22 is inserted into a through hole 36 provided in the metal sleeve 30 and fastened with a nut 24.

  Here, a plurality of fenders 10 may be fixed side by side on the quay wall 40, and the aforementioned front plate may be attached across the flanges 15 of the plurality of columnar bodies 12. Note that the number of cylindrical bodies 12 attached to the quay 40 is appropriately set depending on the type and size of the ship to be berthed.

  With the above configuration, when the ship or the like comes into contact with a front plate (not shown), the fender 10 is deformed to absorb the impact. For this reason, damage to ships and quay walls is suppressed.

  Alternatively, similarly to the flange 14, the flange 15 shown in FIG. 1 may be configured such that the metal sleeve 30 is inserted into the provided through hole and the front plate is fastened.

  Next, the structure of the fender 10 according to the present embodiment will be described.

  As shown in FIGS. 1 to 4, an embedded iron plate 16 made of steel or the like is embedded in the flange 14 of the fender 10, and the anchor bolt 22 embedded in the quay 40 by the embedded portion 22 </ b> B. In order to be joined to the quay 40, a through hole 18A penetrating the flange 14 is provided.

  Since the through-hole 18A needs to penetrate the embedded iron plate 16, the through-hole 18A is opened to the embedded iron plate 16 as a through-hole 18B having a larger diameter than the through-hole 18A. The through hole 18A and the through hole 18B open to positions corresponding to the anchor bolts 22 provided on the quay wall 40, and are provided in the plurality of through holes 18A (18B) when the fender 10 is attached and fastened to the quay wall 40. An anchor bolt 22 is passed through the metal sleeve 30.

  As shown in FIGS. 2 to 4, the inner surface of the through hole 18 </ b> B is covered with the rubber layer 20 that forms the flange 14, and the embedded iron plate 16 is not exposed to the inner surface of the through hole 18 </ b> A.

  The through-hole 18A is inserted with a metal sleeve 30 formed of a metal that is made of rust-proof metal such as stainless steel or rust-proof metal. More preferably, the rubber layer 20 including the embedded iron plate 16 includes the rubber layer 20. It is desirable that the metal sleeve 30 is also crosslinked and fixed when it is crosslinked.

  A flange 34 parallel to the wall surface (mounting surface) of the quay wall 40 is provided on the side facing the quay wall 40 of the metal sleeve 30 to prevent the metal sleeve 30 from falling off the rubber layer 20. Similarly, a flange 32 parallel to the wall surface (mounting surface) of the quay 40 is provided on the sea side of the metal sleeve 30 so that the nut 24, the washer 26 and the rubber layer 20 for fastening the anchor bolt 22 are in direct contact with each other. Is preventing.

  At this time, the outer diameter of at least one of the flanges 32 and 34 needs to be smaller than the inner diameter of the through hole 18B provided in the embedded iron plate 16. However, if both of the flanges 32 and 34 are made smaller than the inner diameter of the through hole 18B, resistance to drop-off is reduced, so that the outer diameters of the flanges 32 and 34 need to be appropriately set according to the situation.

  As a result, the metal sleeve 30 fastens the embedded iron plate 16 to the quay 40 with the anchor bolts 22 with the rubber layer 20 in between, so that the rubber layer 20 existing on the inner surface of the through hole 18A and the anchor bolts 22 are in direct contact. Nor.

  If the anchor bolt 22 is in direct contact with the rubber layer 20 when the fender 10 is installed and removed, the rubber layer 20 may be damaged. As a result, if seawater, oxygen or the like enters from the damaged portion of the rubber layer 20, the embedded iron plate 16 may be rusted, so that the adhesive force between the embedded iron plate 16 and the rubber layer 20 is lost. May fall off.

  In contrast, in the fender 10 according to the present invention, the inner surface of the through hole 18A is covered with the rubber layer 20, and the metal sleeve 30 is inserted into the through hole 18A. While contacting the sleeve 30 and fastening firmly, it does not contact the rubber layer 20, and there is no possibility of damaging it.

  The metal sleeve 30 is provided with a flange 32 parallel to the surface of the quay 40 on the sea side, and the anchor bolt 22 is fastened while the washer 26 sandwiched by the nut 24 and the flange 32 are in sliding contact. As a result, the nut 24 and the rubber layer 20 do not come into contact with each other, the rubber layer 20 is not damaged when the nut 24 is fastened / released, and the metal sleeve 30 rotates and is separated from the rubber layer 20 when the nut 24 is fastened / released. The risk of being lost is reduced.

  Further, when there is an input to the fender 10, in the structure of the present invention, first, a force is applied between the anchor bolt 22 and the metal sleeve 30, which comes into contact with the outer peripheral surface of the metal sleeve 30. The rubber layer 20 is transmitted to the embedded (or cross-linked) rubber layer 20 and transmitted to the embedded iron plate 16.

  Comparing the above configuration with the configuration without the metal sleeve 30, the force transmitted from the anchor bolt 22 to the rubber layer 20 is once dispersed to the rubber layer 20 through the metal sleeve 30, so that the rubber layer 20 is not damaged. It is easy to prevent and the fender 10 can be firmly fastened to the anchor bolt 22 with the nut 24.

  Even when a flange nut or the like is used without using the washer 26, the flange 32 and the nut 24 of the metal sleeve 30 are in contact with each other and the rubber layer 20 is not interposed therebetween, so that the nut 24 can be fastened firmly. Since the rotation of the rubber layer 20 is not transmitted to the rubber layer 20, it is possible to prevent the rubber layer 20 from being pulled and damaged when the fender 10 is fastened / released.

  Further, since the flanges 32 and 34 are provided at both ends of the metal sleeve 30, the metal sleeve 30 is unlikely to drop off from the through hole 18A of the rubber layer 20 on both the sea side and the quay side, and when vulcanized and bonded. Is more firmly bonded to the rubber layer 20.

  In addition, at the time of fastening, the flange 34 provided on the quay side of the metal sleeve 30 comes into contact with the quay 40, and pressure due to tightening of the nut 24 is transmitted to the quay 40. As a result, the rubber layer 20 is not directly pressed against the quay 40 when the anchor bolt 22 is fastened by the nut 24 to cause friction, and the rubber layer 20 does not rotate as the nut 24 and the washer 26 rotate. Therefore, it is possible to prevent the rubber layer 20 from being pulled and damaged.

  Further, when tightening with the nut 24, it is not tightened beyond the length of the metal sleeve 30, and the end point of tightening is easy to understand. That is, when the anchor bolt 22 is tightened with the nut 24, the flange 34 of the metal sleeve 30 comes into contact with the quay wall, and when the nut 24 hits the flange 32, the operator knows the end of the tightening length. Can do.

  In contrast, in the configuration without the metal sleeve 30, the end point is difficult to understand because the rubber layer 20 is tightened, and the rubber layer 20 is pulled, and there is a risk of deformation or damage. On the other hand, in the configuration according to the present invention, the tightening length / tightening torque can be easily set.

  In addition, the metal sleeve 30 itself is preferably formed of a material considering rust prevention properties such as stainless steel or a rust-proof metal, but even if rust is generated on the metal sleeve 30, Since the inner surface of the through hole 18A with which the metal sleeve 30 comes into contact is covered with the rubber layer 20, the rubber layer 20 prevents the intrusion of rust generated in the metal sleeve 30, and the inside of the flange 14, particularly the embedded iron plate. There is no risk of rust entering the vicinity of 16, and there is no risk of rust reaching the embedded iron plate 16.

  As described above, by using the fender 10 according to the present invention, there is no possibility that the rubber layer 20 inside the through hole 18A is damaged during installation and removal. In particular, in the case where the rubber layer 20 is used in a place where the placement and removal are frequently performed, the rubber layer 20 is highly likely to be damaged, so that the effectiveness thereof is great.

  The embodiments of the present invention have been described above with reference to the embodiments. However, these embodiments are merely examples, and various modifications can be made without departing from the scope of the invention. For example, the cylindrical body 12 is used as the buffer material, but the present invention is not limited to this, and other shapes may be used instead of the cylindrical body 12, and various shapes can be used. The quay 40 to which the anchor bolt 22 is attached is not limited to the concrete, and various materials can be used.

DESCRIPTION OF SYMBOLS 10 Fender 12 Cylindrical body 14 Flange 15 Flange 16 Embedded iron plate 18A Through hole 18B Through hole 20 Rubber layer 22 Anchor bolt 24 Nut 26 Washer 30 Metal sleeve 32 Flange 34 Flange 36 Through hole 40 Quay

Claims (4)

A body to be a cushioning material;
A flange formed of a rubber layer provided on both sides of the main body and embedded with a metal plate having a plurality of through portions ;
The metal plate is provided corresponding to the penetrating portion, and the inner peripheral wall of the penetrating portion is covered with the rubber layer, thereby penetrating the flange with an inner diameter smaller than the penetrating portion , and installed on the quay. A plurality of through holes for inserting anchor bolts and fastening the flange to the quay;
A metal sleeve fitted in the through hole and penetrating the metal plate and the rubber layer in the thickness direction;
The metal sleeves are provided at both ends of the metal sleeve so as to be parallel to the surface of the rubber layer, and those provided at the end of the metal sleeve facing the quay are buried in the rubber layer and The outer diameter is smaller than the inner diameter of the penetrating portion and the outer diameter of the metal sleeve is larger than the inner diameter of the penetrating portion. A flange,
Fenders with The fender according to claim 1 , wherein the metal sleeve is made of stainless steel or a rust-proof metal. The fender according to claim 1 or 2 , wherein the metal sleeve is vulcanized and bonded to the rubber layer. The outer peripheral surface of the inner peripheral wall of the through hole and the metal sleeve is coated with the rubber layer, between the metal sleeve and the metal plate either of claims 1 to 3, which is filled with the rubber layer The fender according to claim 1.

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