AU593435B2

AU593435B2 - Fender

Info

Publication number: AU593435B2
Application number: AU14670/88A
Authority: AU
Inventors: Yasuhide Kitao
Original assignee: Sumitomo Rubber Industries Ltd
Current assignee: Sumitomo Rubber Industries Ltd
Priority date: 1987-06-10
Filing date: 1988-04-15
Publication date: 1990-02-08
Anticipated expiration: 2008-04-15
Also published as: KR890000851U; GB2207213A; SG66291G; KR950008238Y1; GB8809171D0; JPH0510023Y2; AU1467088A; JPS63198619U; GB2207213B

Description

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AUSTRALIA

Patents Act COMPLETE SPECIFICATION

(ORIGINAL)

Class Int. Class Application Number: Lodged: Complete Specification Lodged: Accepted: Published: Priority t Related Art: t 593435 9- 9

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.4 4 4t 4 I 4 $4 t~ 'it APPLICANT'S REFERENCE: SG-2-AU Name(s) of Applicant(s): Sumitomo Rubber Industries, Ltd., Industries, Ltd Sumitomo Rubber '4 4 444411 Address(es) of Applicant(s): 1-1, Tsutsui-cho 1-chome,, Kobe-shi,, Hyogo,

JAPAN.

Address for Service is: PHILLIPS ORMONDE FITZPATRICK Patent and Trade Mark Attorneys 367 Collins Street Melbourne 3000 AUSTRALIA Complete Specification for the invention entitled:

FENDER

Our Ref 90290 POF Code: 1262/63016 The following statement is a full description of this invention, including the best method of performing it known to applicant(s): 6003q/1 1 i

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1 r i r s- w I; o I ii :i i-L -13- CUi~~ Specification Title of the Invention Fender o Do 00000 9 0C 0 Background of the Invention The present invention relates to a fender, and more particularly to a fender which is mounted on a quay alongisde of which small-size vessels such as fishing boats or lighters are to come, with the object of preventing the hulls and the quay from being damaged due to the collision of the vessels with the quay.

Small-size vessels such as fishing boats or lighters may come into collision with a quay when such vessels are coming alongside of such a quay. Or, while being moored to a quay, such vessels may roll and/or pitch under the influence of waves or the like, causing the same to come into collision with the quay. Such a collision may damage the hulls and/or the quay. As a fender for preventing such damage to the hulls or quay, there is known a long-size fender of rubber having a section in the form of or a V-shape section.

For example, a V-shape fender disclosed in Japanese Patent 'No. 1065186 has an impact support member 53 _~.aving* a V-shape section provided with an impact re-

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t t i; n g -2- 9 9 9nnq 9 *r Sa It Ct f:t ceiving top surface 52 as a gunwale contact surface, and mounting portions 54 attached to the ends of the impact support member 53, the mounting portions 54 being in parallel to the impact receiving top surface 52, as shown in Fig. Such a fender is horizontally or vertically secured to a quay at a predetermined position thereof. The impact support member 53 is adapted to receive load resulting from the contact with the gunwale of a vessel, thereby to absorb the impact force. This prevents damage to a vessel or the quay.

However, when the fender is horizontally attached, the inclination angles of the upper surface 53a and the lower surface 53b of the impact support member 53 with respect to the water surface are small since these upper and lower surfaces 53a and 53b are opened at a small angle. On the other hand, a band-shape projection P or other projections are attached to the gunwale of a vessel in a manner projecting therefrom, for the purpose of reinforcement of the hull or the like. As shown in Fig.

such projections may run on the upper surface 53a of the impact support member 53 or may thrust the lower surface 53b thereof, under the influence of waves or a difference in' tide level. The fender has a limited resilient deformability in the perpendicular direction, #1, t -3- Sie., in the vertical direction of the impact support member 53. Accordingly, the fender has a limited ability of absorbing the impact resulting from such running-on or thrusting of the projection P or the like. Therefore, the impact exerted on the fender in the vertical direcij -o tion thereof by the projection P or the like may cause

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0 Oo the fender to be. damaged or to fall off from the quay.

On the other hand, when the fender having a section i eo8 in the form of is horizontally attached, the upper and lower surfaces of the impact support member are parallel to the water surface. Accordingly, if a vessel or

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e the like is pitched, the impact by the projection P or ua the like may be exerted to the fender more strongly than v in the fender having a V-shape section. Thus, the fender having a section in the form of may be damaged or fall off from a quay more easily than in the fender having a V-shape section.

In stevedoring such as unloading of cargo, there are instances where the land level of a quay is much higher than the deck of a vessel at low tide. In such a case, it is not possible for stevedores to go up and down between the deck and the land unless footings are 'disposed on the quay. If such footings are not available, the workers may go up and down with their feet put on the fender. If the fender has a V-shape section, the 0: I

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-4upper surface 53a of the impact support member 53 is inclined. This causes the workers to easily slip, incurring danger. This presents a serious inconvenience for stevedoring.

Summary of the Invention It is an object of the present invention to provide oh o a fender which is prevented from being damaged or fall- ,a ing off due to an impact exerted by a vessel in a vertical direction.

It is another object of the present invention to provide a fender which is convenient for stevedoring in which workers go up and down between a vessel and the S.o9 land.

9 In order to achieve the objects above-mentioned, the present invention provides a fender which prevents a vessel from coming into collision with a quay when the vessel is coming alongside the quay, which reduces an impact exerted to the fender particularly if the vessel is pitched, and which has footings to be used at a time of stevedoring.

The fender in accordance with the present invention comprises: an impact receiving surface adapted to come in contact with the gunwale of a vessel and extending in a horizontal direction; i' t: i4 a mounting surface in parallel or substantially in parallel to the impact receiving surface; a plurality of inclined surfaces extending from the upper and lower edges of the impact receiving surface toward the mounting surface, the inclined surfaces being #ate 4o inclined at an angle of 450 or less with respect to the

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oimpact receiving surface; and footings formed between adjacent inclined surfaces 0* 4 of at least the upper-side inclined surfaces, the footings being at right angles or substantially at right angles to the mounting surface.

In accordance with the fender having the arranges 44 ment above-mentioned, the upper and lower inclined surfaces extend from the upper and lower edges of the impact receiving surface toward the mounting surface at an angle of 450 or less with respect to the impact receiving surface. Accordingly, even though the projections on the gunwale or the like of a vessel run on or thrust the fender under the influence of waves or the like, these inclined surfaces cause the projections to slide therealong. This reduces the impact force exerted Sto, the fender by the projections when the projections come into collision with the fender.

The footings are formed between adjacent inclined surfaces at the upper surface at right angles or sub- 6 :ii i 1 stantially right angles to the mounting surface. Accordingly, even though there is a great difference in level between the land and the vessel deck at a time of low tide or in the case of a small-size vessel, stevedores may go and down between the vessel and the land with the use of the footings. This facilitates stevedoring.

Brief Description of the Drawings Figure 1 is a perspective view of a fender in accordance with a first embodiment of the present invention; Figure 2 is a section view taken along the line II-II in Fig. 1; I I Figure 3 is a perspective view of a fender in ac- 114$ v 94 corance with a second embodiment of the present invention; Figure 4 is a section view taken along the line IV-IV in Fig. 3; and Figure 5 is a side view of a conventional fender.

Detailed Description of the Embodiments Fig. 1 is a perspective view of the fender in accordance with a first embodiment of the present invention.

A rubber fender A comprises: i an impact receiving flat surface 1 adapted to come in contact with the gunwale of a vessel and extending in Ij -7a horizontal direction,; a mounting surface 2 adapted to be mounted on and :along a quay or the like, the mounting surface 2 being in parallel or substantially in parallel to the impact receiving surface 1; a plurality of inclined surfaces 3 extending from the upper and lower edges of the impact receiving sura 0 ,a face 1 toward the mounting surface 2; 6*4, flat footings 4 formed between adjacent inclined 10 surfaces 3 at both the upper and lower surfaces of the fender; t s *a bolt mounting surfaces 5 connected to those ends of 9 the footings 4 located at the side of the mounting surr *face 2; bolt insertion holes 6 through which fixing bolts are to be inserted into the mounting surface 2, the bolt insertion holes 6 being formed in the bolt mounting surfaces 5 at predetermined positions thereof; a hollow portion 7 formed at the back of the impact receiving surface 1; and iron plates 8 serving as reinforcing members embedded between the mounting surface 2 and the bolt mounting surface 5 (See Fig. 2).

More specifically, the upper end and the lower end of the mounting surface 2 vertically project considerm i1 c -8ably with respect to the impact receiving surface 1. The mounting surface 2 is divided into two parts in the vertical direction by the hollow portion 7 and the inner end portions of the two parts respectively overlap the impact receiving section 1. As shown in Fig. 2, the inclination angle 8 of the inclined surfaces 3 with respect to the impact receiving surface 1 is set to an angle of 450 or less such that the projections of a vessel are smoothly slided along the inclined surfaces 3 if such projections come in contact with the fender A in a vertical direction. Accordingly, the section of the fender A at the inclined surfaces 3 is substantially in the form of a trapezoid.

The hollow portion 7 is concaved from the mounting surface 2 toward the impact receiving surface i, and has a rectangular section. Accordingly, the hollow portion 7 permits the fender A to be resiliently deformed easily, S6 and may resiliently absorb an impact exerted at a time S" when a vessel or the like comes into collision with the fender A. The hollow portion 7 may have a rectangular section as shown in Fig. 1 and may also have a spadeshape section as shown in Fig. 3. By suitably selecting the hardness of rubber of the fender A, the fender A may be provided with a considerable resilient deformability.

In such a case, the fender A is not required to have the hollow portion 7, but may be made in a solid structure.

The footings 4 formed between adjacent inclined a <1 L I ii frtt t ab a. a. 41 a t 4 I t 't 4444 surfaces 3 are flat and at right angles or substantially right angles to the mounting surface 2. Each of the footings 4 has a width which allows a person to put his foot thereon.

The bolt mounting surfaces 5 are connected to those ends of the footings 4 located at the side of the mounting surface 2, and are parallel or substantially parallel to the mounting surface 2. Accordingly, the vertical section of the fender A at the footings 4 and the bolt 10 mointing surfaces 5 are in the form of as shown in Fig. 2.

The bolt mounting surfaces 5 have the bolt insertion holes 6 which pierce through the bolt mounting surfaces 5, reinforcing iron plates 8 and the mounting surface 2, the iron plates 8 being incorporated between the surfaces 5 and 2. The fender A may be secured to a quay or the like by securing bolts which have passed through the bolt insertion holes 6, to such quay or the like.

The fender A is horizontally attached to a concrete quay or the like. If a vessel or the like comes into collision with the fender A at the impact receiving surface 1 thereof when the vessel or the like is coming alongside the quay, the fender A is resiliently deformed toward the quay to absorbe the impact.

If a vessel or the like is pitched under the influi i -i:I: I .I ence of waves while the vessel or the like is moored at a quay, the projections or the like on the gunwale of the vessel may run on or thrust the fender A. Since the fender A has at the upper and lower surfaces thereof a plurality of inclined surfaces 3 inclined at an angle of 450 or less with respect to the impact receiving surfaces i, the projections or the like are slided along the inclined surfaces 3. This prevents the fender A from being strongly exerted by an impact by the projections or the like when the same come into collision with the fender A.

Further, even though there is a great difference in level between the land and the vessel deck for example at a time of low tide or in the case of a small-size vessel, it is possible for a person to go up and down between the vessel and the land through the fender with the use of the footings 4. This facilitates stevedoring.

The arrangement of the fender in accordance with the present invention is not limited to those shown in the embodiments above-mentioned. For example as to the inclined surfaces 3, a plurality of members each having an inclined surface and a triangular section may be integrally joined to a fender body having a section in the form of at suitable spacial intervals. The respective component elements of the fender of the present t F,, t r(4 t t t tt

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r~1. -11invention may be modified and changed without departing from the scope of the appended claims.

The fender having the arrangement above-mentioned in accordance with the present invention may sufficiently reduce an impact exerted by a vessel when the same is horizontally moved. This not only protects the vessel, but also prevents the quay from being damaged. In addition, the fender of the the present invention assures the following operational effects: 1 0 The fender is provided at the upper and lower surface thereof with inclined surfaces. Accordingly, even though the projections projecting from a vessel 4* a4 gunwale run on or thrust the fender under the influence of waves or the like, the inclined surfaces enable the projections to slide therealong. This gradually reduces the impact exerted by the projections, thereby to prevent the fender from falling off or being damaged.

The fender is provided with footings between adjacent inclined surfaces at at least the upper surface thereof.With the use of the footings, stevedoring can be easily made even though there is a great difference in level between the land and the vessel deck for example at a time of low tide or in the case of a small-size vessel.

As described in detail, the fender in accordance 6r 1-7 -12with the present invention reduces an impact exerted by a vessel when it comes into collision with a quay or the like, thereby to protect the vessel and the quay or the like. The fender also prevents damage to the fender itself due to the influence of waves, such damage remaining unsettled in a conventional fender. Further, the fender of the present invention facilitates stev-doring with the use of the footings. Thus, the present invention may achieve various practical effects which have not been obtained by a conventional fender.

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Claims

2. A fender according to Claim i, wherein a hollow portion is formed at the back side of the impact re- ceiving surface.
3. A fender according to Claim 1, having a solid structure.
4. A fender according to Claim i, having a trape- zoid section at the inclined portions thereof.I A fender according to Claim 1, further having bolt mounting surfaces located correspondingly to the ;_is q i -14- o 0 9,r 0 991 9 4.9 9 (ftII 9141f 4 9l positions of the footings, which are being in parallel or substantially in parallel to the mounting surface, each of said bolt mounting surfaces having a bolt inser- tion hole which pierces into said mounting surface.
6. A fender according to Claim 5, wherein a rein- forcing member is incorporated between the bolt mounting surfaces and the mounting surface. DATED: 14 April 1988 PHILLIPS ORMONDE FITZPATRICK Patent Attorneys for: SUMITOMO RUBBER INDUSTRIES, LTD. *1 C, c I ~ri~r~ i d I