JP3322362B2 - Fender - Google Patents
FenderInfo
- Publication number
- JP3322362B2 JP3322362B2 JP18944093A JP18944093A JP3322362B2 JP 3322362 B2 JP3322362 B2 JP 3322362B2 JP 18944093 A JP18944093 A JP 18944093A JP 18944093 A JP18944093 A JP 18944093A JP 3322362 B2 JP3322362 B2 JP 3322362B2
- Authority
- JP
- Japan
- Prior art keywords
- fender
- fold
- mounting
- present
- support portion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- 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
Landscapes
- Vibration Dampers (AREA)
- Body Structure For Vehicles (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、船舶の接岸の際のエネ
ルギ−を吸収する防舷材の改良に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improved fender for absorbing energy when a ship berths.
【０００２】[0002]
【従来の技術】ゴム又はゴム状弾性材料よりなる（以下
ゴム材料という）よりなる防舷材の性能を向上させる場
合、硬質のゴム材料を使用するか、その肉厚を厚くする
ことによって反力を大きくする方法が取られている。本
発明はこれらの改良手段とは異なり、防舷材の支衝部を
外方へく字状に屈曲させることにより座屈変形させ、こ
の時に生ずる外方への膨出抵抗力を高めたことによる反
力を上昇させる防舷材を提供するものである。2. Description of the Related Art In order to improve the performance of a fender made of rubber or a rubber-like elastic material (hereinafter referred to as a rubber material), a hard rubber material is used or its thickness is increased to increase the reaction force. The method of increasing is taken. The present invention is different from these improvement means in that the buckling portion of the fender is bent outward in a U-shape to buckle and increase the resistance to outward bulging at this time. The present invention provides a fender that increases the reaction force of the fender.
【０００３】従来より、この種防舷材の例として実公平
２−３０５０５号が提案されているが、この防舷材は船
舶の接舷初期における反力が小さく、エネルギ−吸収能
力が少ないため、大型船舶に対して用いる際には防舷材
をかなり大きくしなくてはならず不経済であった。Hitherto, Japanese Utility Model Publication No. 2-305505 has been proposed as an example of this type of fender. However, this fender has a small reaction force at the initial stage of berthing of a ship and has a low energy absorption capacity. However, when used for large vessels, the fenders must be considerably large, which is uneconomical.
【０００４】[0004]
【発明が解決しようとする課題】本発明にあっては、初
期反力の上昇を図り、吸収エネルギ−の増加を達成する
ものであって、防舷材の支衝部の外方にく字状の折り目
を形成し、かつ取付部側を拡径した形状にすることによ
り目的を達成し、比較的小型で充分な反力を有する経済
的な防舷材を提供するものである。According to the present invention, the initial reaction force is increased to achieve an increase in the absorbed energy. An object of the present invention is achieved by forming a crease-like fold and increasing the diameter of the mounting portion side, thereby providing an economical fender having a relatively small size and sufficient reaction force.
【０００５】[0005]
【課題を解決するための手段】本発明の防舷材は、受衝
部と、この受衝部より末広がりに延びる支衝部と、この
支衝部端より取付面に沿って延びる取付部と、よりなる
ゴム又はゴム状弾性材料によって形成された防舷材であ
って、前記支衝部の少なくとも外表面が折り目を有し、
折り目よりも受衝部側が折り目に向かい外方に拡径して
おり、折り目よりも取付部側が取付部に向かい更に外方
に拡径していることを特徴とする防舷材であって、好ま
しくは、折り目がく字状であり、折り目の位置が防舷材
高さＨに対して取付面より０．３×Ｈ〜０．６×Ｈの間
にあるものであるか、折り目が円弧状の曲線をもって結
ばれ、支衝部の少なくとも外表面が取付部に向かい末広
り状に拡径した曲面で形成された防舷材である。A fender according to the present invention comprises a receiving portion, a supporting portion extending divergently from the receiving portion, and a mounting portion extending along the mounting surface from an end of the supporting portion. A fender made of rubber or a rubber-like elastic material, wherein at least the outer surface of the support portion has a fold,
A fender, characterized in that the receiving part side is larger in diameter outwardly than the fold toward the fold, and the mounting part side is larger outwardly than the fold toward the mounting part, Preferably, the fold is in the shape of a letter, and the position of the fold is between 0.3 × H and 0.6 × H from the mounting surface with respect to the fender height H, or the fold is in the shape of an arc. And the fender is formed with a curved surface having at least the outer surface of the support portion expanding toward the attachment portion and having a divergent shape.
【０００６】[0006]
【作用】図１は本発明の防舷材の概念図である。１は受
衝部、２はゴム材料にて構成する中空部をもつ支衝部、
３は取付部を示す。そして４は支衝部２の外側に備えら
れたく字状の折り目であり、５は拡径部である。この防
舷材は、船舶の接舷等により、支衝部２が外方へ膨出す
るように変形しながら反力を生じることとなるが、接舷
の初期、即ち、支衝部２の初期変形状態においては、支
衝部２の外側に備えたく字状の折り目４及び拡径部５の
存在により、支衝部２の外方への膨出に対する抵抗力が
生じて反力を増加させることとなる。そして、更に支衝
部２の変形が進むと、支衝部の膨出が生じ、定反力域を
経て最大変形点に達することとなる。FIG. 1 is a conceptual view of a fender according to the present invention. 1 is a receiving portion, 2 is a supporting portion having a hollow portion made of a rubber material,
Reference numeral 3 denotes a mounting portion. Reference numeral 4 denotes a rectangular fold provided outside the support portion 2, and reference numeral 5 denotes an enlarged diameter portion. This fender generates a reaction force while deforming so that the support portion 2 swells outward due to the berthing of the ship, etc., but the initial stage of the pier, that is, the support portion 2 In the initial deformation state, the presence of the crease-shaped fold 4 and the enlarged diameter portion 5 provided on the outer side of the support portion 2 generates a resistance force against the outward expansion of the support portion 2 and increases the reaction force. Will be done. Then, when the deformation of the support portion 2 further proceeds, the support portion swells, and reaches the maximum deformation point via the constant reaction force region.
【０００７】本発明は、支衝部２の外側にく字状の折り
目４及びこれに連なる拡径部５を形成したことによって
吸収エネルギ−が増加するものであり、特に支衝部２に
備えたく字状の折り目４の角度、言い換えれば拡径部５
の角度θは１６０度以上がよく、これ以下の場合には支
衝部２が外方へ膨出することがなく、定反力域を有しな
い過大な反力を生じてしまうこととなる。又、傾斜圧縮
時に中空部への折れ曲りが生じるため、所定の性能を発
揮することができない。尚、支衝部２は前記く字状の折
り目の他、受衝面と取付け部を円弧状の曲線をもって結
んで折り目としてもほぼ同様の効果が得られる。According to the present invention, the absorption energy is increased by forming a fold 4 having a U-shape and an enlarged diameter portion 5 connected to the fold 4 on the outside of the support portion 2. Angle of the fold 4 in the shape of a tuck, in other words, the enlarged diameter portion 5
Is preferably 160 degrees or more, and if it is less than 160 degrees, the support portion 2 does not bulge outward, and an excessive reaction force having no constant reaction force region is generated. In addition, since the hollow portion is bent at the time of inclined compression, predetermined performance cannot be exhibited. The same effect can be obtained even if the support portion 2 is formed as a fold by connecting the receiving surface and the mounting portion with an arc-shaped curve in addition to the above-mentioned U-shaped fold.
【０００８】く字状の折り目部が存在しない場合におけ
る支衝部の外方への膨出位置は、一般に変形前の防舷材
高さの０．３５Ｈ〜０．４５Ｈの範囲にあり、かつ防舷
材内面に段差等の座屈点を設け座屈点を外方へ膨出する
ように支衝部を変形できる範囲が０．３Ｈ〜０．６Ｈの
範囲である。このため、本発明の目的である支衝部の外
方への膨出に対する抵抗力を生じさせるためには、０．
３Ｈ〜０．６Ｈの範囲にく字状の折り目部が存在しなく
てはならないものである。The bulging position of the supporting portion in the absence of the U-shaped fold portion is generally in the range of 0.35H to 0.45H of the height of the fender before deformation, and A range where the buckling point such as a step is provided on the inner surface of the fender and the supporting portion can be deformed so as to bulge the buckling point outward is in a range of 0.3H to 0.6H. For this reason, in order to generate the resistance to the outward bulging of the support portion, which is the object of the present invention, it is necessary to use 0.1.
It is necessary that a U-shaped fold portion be present in the range of 3H to 0.6H.
【０００９】ここで、本発明の防舷材を歪−反力特性曲
線をもって更に説明する。図２は最高反力を同一に設定
した場合の特性曲線であり、図中、Ｘ1 線は従来の防舷
材の特性曲線であり、Ｙ1 線は本発明の防舷材の特性曲
線である。尚、ここに用いられた防舷材は、後述する図
４に示す防舷材である。図から分るように、本発明の防
舷材にあっては、接舷初期の反力が大きいことが特徴で
あり、斜線で示した部分が従来の防舷材よりも吸収エネ
ルギ−増加分を示すものである。Here, the fender of the present invention will be further described with reference to a strain-reaction characteristic curve. Figure 2 is a characteristic curve in the case of setting the maximum reaction force to the same, in Fig, X 1 line is a characteristic curve of the conventional marine fender, Y 1 line in the characteristic curve of the fender of the present invention is there. The fender used here is a fender shown in FIG. 4 described later. As can be seen from the drawing, the fender of the present invention is characterized by a large initial reaction force at the time of berthing, and the hatched portion shows an increase in absorbed energy-more than that of the conventional fender. It shows.
【００１０】一方、図３に示す歪−反力特性曲線にあっ
ては、防舷材の最小肉厚を同一とした場合の特性曲線で
ある。この図から分るように、接舷初期の吸収エネルギ
−が従来品よりも大きいことは勿論、それ以降の吸収エ
ネルギ−も従来の防舷材よりもすぐれたものとなること
が分る。On the other hand, the strain-reaction characteristic curve shown in FIG. 3 is a characteristic curve when the minimum thickness of the fender is the same. As can be seen from this figure, not only is the absorbed energy at the initial berthing larger than that of the conventional product, but the absorbed energy thereafter is also better than the conventional fender.
【００１１】[0011]
【実施例】以下、本発明の防舷材を図面をもって具体的
に説明する。図４は本発明の防舷材の第１実施例Ａを示
す部分切断側面図である。図中、符号１１は表面にパッ
ドを取り付けた剛性受衝部であり、１２は防舷材の基体
となるゴム製の支衝部である。そして、この支衝部１２
の頂面に、環状の補強板１３が埋設されて受衝部１１と
の取り付けに供される。そして、かかる補強材１３に形
成されているボルト孔１４をもって、ボルト１５及びナ
ット１６にて取り付けされるものである。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a fender according to the present invention. FIG. 4 is a partially cut-away side view showing a first embodiment A of the fender of the present invention. In the drawing, reference numeral 11 denotes a rigid receiving portion having a pad attached to its surface, and reference numeral 12 denotes a rubber supporting portion serving as a base of the fender. And this support part 12
An annular reinforcing plate 13 is buried on the top surface of the base member and is provided for attachment to the receiving portion 11. The bolts 15 and nuts 16 are used to attach the bolts 14 formed in the reinforcing member 13.
【００１２】一方、支衝部１２の他端には、これ又、環
状の補強板１７が埋設されて、取付部１８が形成され
る。この補強板１７に形成されたボルト孔１９をもっ
て、図示しない取付面からのびる図示しないアンカ−ボ
ルトにて取り付けられるものである。On the other hand, at the other end of the support portion 12, an annular reinforcing plate 17 is buried to form a mounting portion 18. A bolt hole 19 formed in the reinforcing plate 17 is used for mounting with an anchor bolt (not shown) extending from a mounting surface (not shown).
【００１３】この防舷材Ａの一例にあっては、その高さ
Ｈは１０２ｃｍ、取付部１８の内径Ｒ1 は７８ｃｍ、外
形Ｒ2 は１５０ｃｍである。又、受衝部１１との取り付
けに供される支衝部１２の頂面の外形Ｒ3 は７０ｃｍで
あり、その中央に直径２０ｃｍの孔２０があけられてい
る。そして、支衝部１２の肉厚ｔ1 は１９．６ｃｍであ
り、支衝部１２はほぼ円錐台形をなしている。In the example of the fender A, the height H is 102 cm, the inner diameter R 1 of the mounting portion 18 is 78 cm, and the outer shape R 2 is 150 cm. Further, the outer shape R 3 of the top surface of the支衝portion 12 to be subjected to mounting of the impact receiving portion 11 is 70cm, at its center a hole 20 with a diameter of 20cm are opened. The thickness t 1 of the support portion 12 is 19.6 cm, and the support portion 12 has a substantially truncated cone shape.
【００１４】さて、本発明の防舷材Ａにあって、取付部
１８より４２ｃｍのところ（Ｐ点）を境として、その外
表面にく字状の折り目２１が形成され、取付部１８側が
拡径部２２とされている。そのＰ点における支衝部１２
の両外表面のなす角度θは、約１７０度であった。In the fender A of the present invention, a V-shaped fold 21 is formed on the outer surface of the fender A at a position 42 cm from the mounting portion 18 (point P), and the mounting portion 18 side is expanded. The diameter 22 is set. Supporting part 12 at the point P
Was about 170 degrees.
【００１５】図５は本発明の防舷材Ｂの部分切断側面図
である。この例にあって、図４における支衝部１２にお
ける折り目２１の部位（Ｐ点）の表面を、半径２００ｃ
ｍの曲面にて形成したものである。このＰ点の部位にお
ける支衝材１２の肉厚ｔ2 は２０．５ｃｍであった。FIG. 5 is a partially cut-away side view of the fender B of the present invention. In this example, the surface of the portion (point P) of the fold 21 in the support portion 12 in FIG.
m. Thickness t 2 of支衝member 12 at the site of the P point was 20.5cm.
【００１６】図６は本発明の防舷材Ｃの部分切断側面図
である。この例にあっては、支衝部１２の表裏面共に曲
面２３、２４にしたものであり、表面の半径２００ｃｍ
（２３）、裏面の半径２２５ｃｍ（２４）とし、取付け
面に向かって拡径させたものである。FIG. 6 is a partially cut-away side view of the fender C of the present invention. In this example, both the front and back surfaces of the support portion 12 are curved surfaces 23 and 24, and the radius of the front surface is 200 cm.
(23) The rear surface has a radius of 225 cm (24) and is enlarged toward the mounting surface.
【００１７】[0017]
【発明の効果】本発明にあっては、防舷材として最も重
要な支衝部の外表面に折り目を形成し、折り目よりも受
衝部側を折り目に向かい外方に拡径するようにし、折り
目よりも取付部側を取付部に向かい更に外方に拡径する
ようにしたことによって、特に接舷の初期のエネルギー
吸収能力が大きく設計できるものであり、逆に言えば、
それだけ防舷材が小型化できることとなったものであ
る。According to the present invention, a fold is formed on the outer surface of the most important supporting portion as a fender, and the diameter of the receiving portion side is larger than that of the fold toward the fold. By expanding the diameter of the mounting portion side further toward the mounting portion than the fold, it is possible to design a large energy absorption capacity especially at the initial berthing, and conversely,
As a result, the fender can be reduced in size.
【図１】図１は本発明の防舷材の概念図である。FIG. 1 is a conceptual diagram of a fender according to the present invention.
【図２】図２は最高反力を同一に設定した場合の防舷材
の歪−反力特性曲線である。FIG. 2 is a strain-reaction characteristic curve of a fender when the same maximum reaction force is set.
【図３】図３は最小肉厚を同一とした場合の防舷材の歪
−反力特性曲線である。FIG. 3 is a strain-reaction characteristic curve of the fender when the minimum thickness is the same.
【図４】図４は本発明の防舷材の第１実施例を示す部分
切断側面図である。FIG. 4 is a partially cut-away side view showing a first embodiment of the fender of the present invention.
【図５】図５は本発明の防舷材の第２実施例を示す部分
切断側面図である。FIG. 5 is a partially cut-away side view showing a second embodiment of the fender of the present invention.
【図６】図６は本発明の防舷材の第３実施例を示す部分
切断側面図である。FIG. 6 is a partially cut-away side view showing a third embodiment of the fender of the present invention.
１、１１‥‥受衝部、 ２、１２‥‥支衝部、 ３‥‥取付部、 ４、２１‥‥支衝部の外側に備えられたく字状の折り
目、 ５、２２‥‥支衝部の拡径部、 １３、１７‥‥環状の補強板１３ １４、１９‥‥補強材に形成されているボルト孔、 １５‥‥ボルト、 １６‥‥ナット、 １８‥‥取付部、 ２３‥‥外曲面、 ２４‥‥内曲面。1, 11 ‥‥ receiving part, 2, 12 ‥‥ supporting part, 3 ‥‥ mounting part, 4, 21 ‥‥ rectangular fold provided outside the supporting part, 5, 22 、 supporting part Enlarged portion of part, 13, 17 、 annular reinforcing plate 1314, 19 ‥‥ bolt hole formed in reinforcing material, 15 ‥‥ bolt, 16 ‥‥ nut, 18 ‥‥ mounting part, 23 ‥‥ Outer surface, 24 ° inner surface.
Claims (3)
びる支衝部と、この支衝部端より取付面に沿って延びる
取付部と、よりなるゴム又はゴム状弾性材料によって形
成された防舷材であって、前記支衝部の少なくとも外表
面が折り目を有し、折り目よりも受衝部側が折り目に向
かい外方に拡径しており、折り目よりも取付部側が取付
部に向かい更に外方に拡径していることを特徴とする防
舷材。1. A rubber or rubber-like elastic material comprising a receiving portion, a supporting portion extending divergently from the receiving portion, and a mounting portion extending along a mounting surface from an end of the supporting portion. Fender, wherein at least the outer surface of the support portion has a fold, the diameter of the receiving portion side is larger than the fold toward the fold, and the mounting portion side of the fold is closer to the mounting portion. A fender characterized in that the diameter is further expanded outward.
防舷材高さＨに対して取付面より０．３×Ｈ〜０．６×
Ｈの間にある請求項第１項記載の防舷材。2. The fold is in a U-shape, and the position of the fold is 0.3 × H to 0.6 × from the mounting surface with respect to the fender height H.
2. The fender according to claim 1, which is between H.
支衝部の少なくとも外表面が取付部に向かい末広り状に
拡径した曲面で形成された請求項第１項記載の防舷材。3. The fold is connected with an arc-shaped curve,
2. The fender according to claim 1, wherein at least the outer surface of the support portion is formed as a curved surface which expands in a divergent shape toward the mounting portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18944093A JP3322362B2 (en) | 1993-06-30 | 1993-06-30 | Fender |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18944093A JP3322362B2 (en) | 1993-06-30 | 1993-06-30 | Fender |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0718643A JPH0718643A (en) | 1995-01-20 |
| JP3322362B2 true JP3322362B2 (en) | 2002-09-09 |
Family
ID=16241290
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18944093A Expired - Fee Related JP3322362B2 (en) | 1993-06-30 | 1993-06-30 | Fender |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3322362B2 (en) |
-
1993
- 1993-06-30 JP JP18944093A patent/JP3322362B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0718643A (en) | 1995-01-20 |
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