JPH0529194Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] This invention relates to a fender that protects ships and quays by absorbing the impact of the ship when it comes alongside a quay, etc., and particularly to a fender that is suitable for small ships such as fishing boats.

[Conventional technology]

Traditionally, this type of fender and fender equipment includes:
Various shapes are used. For example, the cross-sectional shape of the fender is round, rectangular, polygonal, D-shaped, or V-shaped.
Its shape is widely known.

However, most of these fenders were developed for large ships and were not suitable for small ships. That is, since small vessels such as fishing boats are made of wood or materials such as FRP, the reaction force when the fender starts to deform is too large to adequately protect the vessel.

Therefore, the applicant installed a plurality of impact receiving parts each having a rounded surface through an attachment part, opened the lower end surface of the impact receiving part, and made the upper part of the impact receiving part a tapered surface. It is a compact model with a thick walled part on the inside, a reinforcing cloth buried in the impact receiving part and the mounting part, and a reinforcing plate buried in the mounting part, with holes for bolts drilled at appropriate intervals. Devised fender material for ships (Utility Application No. 61-24736).

[Problem that the invention attempts to solve]

The above-mentioned idea can achieve the desired purpose of having a low resistance force when the fender starts deforming, maintaining this low resistance force for a long time, and absorbing as much impact energy as possible during deformation. Ta.

However, in recent years, there has been a demand for fender materials to be used as rescue ladders in case a person falls into the water from a quay or ship, or as a support member for the gangplank between a ship and a quay, and countermeasures have been required. Ta.

[Means for solving problems]

In order to achieve the above object, this invention has the following configuration.

A plurality of impact-receiving parts whose impact-receiving surfaces are rounded are arranged in a row via the mounting part, the lower end surface of the impact-receiving part is open, and the upper part is formed into a tapered surface at an angle of 30 to 35 degrees with respect to the mounting part. At the same time, the inner upper part of the tapered surface is made into a thick part, a continuous reinforcing cloth is buried inside the impact receiving part and the attachment part, and a reinforcing plate is buried on the reinforcing cloth in the attachment part. and then drill at least two bolt holes for mounting.
The present invention is characterized in that a plurality of horizontal members are provided to interconnect the outer surfaces between the two impact receiving parts, and the height of the horizontal members is formed to be lower than the height of the impact receiving parts.

The horizontal member may be formed into a substantially trapezoidal planar shape and provided with a through hole for gripping, or may be formed into a horizontal bar shape.

[Effect]

The fender for small ships according to the present invention is
By arranging multiple impact-receiving parts with rounded surfaces through the attachment parts, the resistance force when the fender starts to deform is small, and this low resistance force can be maintained for a long time, and at the same time, it can absorb as much impact as possible during deformation. Can absorb energy. Moreover, by integrally providing a plurality of horizontal members that interconnect the impact receiving parts, this horizontal member can be used as a support member for a rescue ladder or a gangplank between a ship and a quay.

The tapered surface at the top of the impact receiving part serves to prevent damage during deformation and to prevent falling objects from entering.

〔Example〕

This invention will be explained in detail below based on examples.

FIG. 1 is a perspective view showing an embodiment of this invention, FIG. 2 is a plan view, and FIG. 3 is a bottom view.

The fender main body 1 includes an impact receiving part 2 having a certain wall thickness.
are alternately connected via plate-shaped attachment parts 3 that are fixed to the quay, and furthermore, impact receiving parts 2 located at both ends
The mounting portion 3 is also provided on the outer surface of the holder. The impact-receiving portion 2 is a portion that comes into contact with the ship when it berths, and is formed in a substantially semicircular arc shape with the vertical direction when attached to the quay as an axis. Therefore, the impact-receiving surface of the impact-receiving part 2 that the ship comes into contact with is a rounded surface that protrudes more than the mounting part 3, and a gap with a substantially U-shaped cross section is formed in the vertical direction when it is installed on a quay wall. There is.
In the embodiment, the three impact receiving parts 2 are arranged in a row alternately via the mounting parts 3, so that the whole becomes approximately wave-shaped in a plane, and between the adjacent impact receiving parts 2, the opposing impact receiving surfaces and the mounting parts 3 forms a groove-like recess.

The lower end surface of the impact receiving part 2, which is the lower side when attached to the quay wall, is left as an opening 5, but the upper end surface, which is the upper side when attached to the opposite quay wall, is closed. That is, the upper end surface of the impact receiving part 2 is made into a tapered surface 6, and the tapered surface 6
The gap is closed by forming a thick part 7 on the inside of the upper part.

The tapered surface 6 is 30~
It is formed at a 35 degree angle. This is because if the angle of the tapered surface 6 is smaller than 30 degrees, absorption of impact energy in the impact receiving part 2 will be reduced, and if it is larger than 35 degrees, it will be easily damaged during deformation.

Further, the inner surface 7a of the thick portion 7 is approximately horizontal when attached to a quay wall, and its maximum height is approximately one half of the height of the impact receiving portion 2. In this way, since the upper end surface of the impact receiving part 2 is made into a tapered surface 6 and is closed by the thick part 7, it will not be damaged even by deformation due to impact, and the intrusion of falling objects etc. will be prevented. be able to.

On the other hand, the concave portions between the adjacent impact receiving portions 2 are connected by a plate-shaped horizontal member 4 that becomes horizontal when attached to a quay. The horizontal member 4 is the impact receiving part 2
It has a substantially trapezoidal shape so as to fill the groove-like recess between them, and its height h is formed to be the same as or slightly lower than the height H of the impact receiving part 2. The wall thickness t of the horizontal member 4 is sufficient to withstand the load applied to the horizontal member 4, and
It is formed to have a thickness that does not inhibit the deformation of the impact receiving portion 2.

Further, it is preferable that a plurality of horizontal members 4 are provided at intervals of 30 to 50 cm, and that each horizontal member 4 is provided with a through hole 11 for holding. In this way, when the handle hole 11 is provided, a person who falls into the water can use it as a ladder.

Note that, as long as the horizontal member 4 is provided between at least one pair of impact receiving parts 2, it is not necessary to provide it between all of the impact receiving parts 2 and can be omitted as appropriate.

One or more layers of reinforcing cloth 8 are continuously buried inside the impact receiving part 2 and the attachment part 3, and furthermore, a reinforcing plate 9 is buried on the reinforcing cloth 8 in each attachment part 3. There is. As the reinforcing plate 9, it is preferable to use an integral iron plate or the like that reaches the upper and lower ends of the attachment part 3.

Bolt holes 10 for fender attachment are bored in the attachment portion 3 at appropriate intervals. Bolt hole 10
is the reinforcing plate 9 and the reinforcing cloth 8 in the attachment part 3
It is drilled through. The bolt holes 10 may be formed by embedding a reinforcing plate 9 in which holes are drilled at appropriate intervals in advance, and then penetrating the holes in the reinforcing plate 9 with a drill or the like after molding.

This fender can be reliably attached to the quay by burying the reinforcing plate 9, and by making the impact surface of the impact receiving part 2 a rounded surface, it is perpendicular to the impact surface. It can also easily absorb impacts from diagonal directions.

In the above embodiment, the fender main body 1 is configured to consist of three impact receiving parts 2, but it is not limited to this, and may be composed of two or four or more impact receiving parts 2. .

Further, the shape of the impact receiving portion 2 may be any shape as long as it has a rounded surface, and its cross-sectional shape may be not only the semicircular shape shown in the figure but also a circular arc shape, a U-shape, etc.

Further, the shape of the horizontal member 4 is not limited to the above-mentioned shape, but may be a horizontal member as shown in FIGS. 6 and 7.

[Effect of idea]

As described above in detail, this invention has the following specific effects.

(1) By having multiple impact-receiving parts, although the resistance force at the start of deformation is small, the ability to absorb impact energy is increased, which can prevent damage to small ships made of wood or FRP, which are vulnerable to impact. can.

(2) By making the impact-receiving part a rounded surface, it is possible to withstand impacts not only from right angles to the impact-receiving surface but also from diagonal directions.

(3) By closing the upper part of the impact receiving part with a tapered surface and configuring a thick wall part, even when the point of contact with the ship moves upward, such as during high tide, the ship and the fender body will be protected. Damage can be prevented.

(4) By providing a horizontal member that connects the impact-receiving parts, it can also be used to support rescue ladders and gangplanks between ships and quays, helping to prevent water accidents.

(5) Since the horizontal member can be easily installed by only slightly modifying a conventional mold, equipment costs can be significantly reduced.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing an embodiment of the fender according to the present invention, Fig. 2 is a plan view, Fig. 3 is a bottom view, Fig. 4 is a longitudinal sectional view of the impact receiving part, and Fig.
The figure is a partially enlarged cross-sectional view, FIG. 6 is a perspective view showing another embodiment of the horizontal member, and FIG. 7 is a vertical cross-sectional view of the attachment portion of FIG. 6. 1 is the fender main body, 2 is the impact receiving part, 3 is the attachment part, 4 is the horizontal member, 5 is the opening, 6 is the tapered surface,
7 is a thick part, 7a is the inner height of the thick part, 8 is a reinforcing cloth, 9 is a reinforcing plate, 10 is a bolt hole for mounting, 1
1 is a through hole for hand holding, h is the height of the horizontal member in the plane, H is the height of the impact receiving part in the plane, and t is the wall thickness of the horizontal member.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A plurality of impact-receiving parts that a ship comes into contact with are installed in a row alternately via attachment parts that fix the impact-receiving parts to the quay, and furthermore, on the outer surfaces of the impact-receiving parts located at both ends. Provide a mounting part,
The impact-receiving part is formed into a substantially semicircular arc shape with a constant wall thickness with the vertical direction when it is attached to the quay as an axis, so that the impact-receiving surface is a rounded surface that protrudes from the mounting part, and the opposite A groove-like recess is formed between the impact receiving surfaces, and a gap is formed in the vertical direction on the inner surface of the impact receiving part. is left open as it is, and the upper end surface on the opposite side is tapered at an angle of 30 to 35 degrees with respect to the mounting part, and the upper inside of the tapered surface is made into a thick part to close the gap, and at least one pair of A plurality of horizontal members are provided at regular intervals between the opposing impact receiving parts, which are horizontal when installed on the quay and are lower than the height of the impact receiving part, and there is a continuous line between the impact receiving parts and the mounting part. 1. A fender for a small boat, characterized in that a reinforcing cloth is embedded therein, and a reinforcing plate is embedded on the reinforcing cloth in the attachment part, and bolt mounting holes are bored at appropriate intervals. (2) The fender for a small ship according to claim 1, wherein the horizontal member is a plate-shaped body having a through hole for handing. (3) The fender for a small ship according to claim 1, wherein the horizontal member is a horizontal member.