JPS5931778Y2 - Ladder and fender - Google Patents

Description

[Detailed description of the invention] This invention relates to a fender provided on a quay wall that is formed to double as a ladder.

Ladders are often installed at boat quays to allow people to board and disembark small boats.

Traditionally, such ladders were often made of iron and fixed to quay walls, but they were frequently damaged by ship collisions.

In order to reduce this damage, if the ladder is made strong, it is not desirable to increase the strength of the ladder in this way because if the ship accidentally collides with the ship, the hull will be damaged.

Therefore, ladders installed on quay walls are often severely deformed and typically have a short lifespan.

The purpose of this invention is to provide a fender that is highly durable and can be used both as a ladder and protect the ship's hull by not only preventing the ladder from being damaged by a collision with a ship but also exerting a buffering effect.

This invention will be explained below based on the illustrated embodiments.

FIGS. 1 to 4 show a first embodiment, in which 1 is an impact wall portion and 2 is a support portion.

The impact wall portion 1 is formed by providing a vertically long thick rubber plate with window-like portions 3, 3, etc. lined up in the vertical direction, thereby forming a horizontal beam portion 4 that becomes a horizontal beam for a ladder. ,4...
was formed.

As shown in Fig. 4, steel parts 5 are buried inside the horizontal beams 4, 4, . Steel items 6 are buried continuously and connected to each chain 5 of the horizontal beam portion 4.

It is better for the horizontal beam portion 4 to have less deflection when a person's weight is applied to it, so in this sense it is better for the chain 5 to be in a tensioned state.

The support portion 2 is integrally formed of thick rubber so as to be continuous with the outer peripheral edge of the impact receiving wall 1, and extends and extends away from each other on both sides from the impact receiving wall 1 side toward the rear. However, the rear end portion further extends outward on both sides to form an attachment portion 7 to the quay wall.

A reinforcing steel plate 8 is buried inside the attachment part 7, and insertion holes 9 for anchor bolts to be planted on the quay are provided at appropriate intervals through the rubber part and the steel plate 8.

5 and 6 show a second embodiment, which consists of an impact receiving wall section 1 having a window-like section 3 similar to that of the first embodiment, and a support section 2 having a slightly different mounting section.

The support portion 2 extends rearward from the peripheral outer edge of the impact receiving wall portion 1 so as to be separated from each other on both sides, and extends inward so as to approach each other at the rear end to form a mounting portion 7a. .

The upper end of the mounting portion 7a is bent rearward and extended as shown in FIG.
An impact receiving wall portion 1a having a diameter of 1.a is formed together with the support portion 2a.

In the figure, 11 is a quay wall, 12 is an anchor bolt, and as shown in the figure, a fender that also serves as a ladder is attached.

Although the first embodiment does not have a bending/extending portion attached to the upper end of the quay, it is attached vertically to the quay like the second embodiment.

The first and second embodiments are conventional quay fenders without the window-shaped parts 3, 3a, but the horizontal beam part 4 is formed by providing the window-shaped parts 3°3a. Therefore, it can be used as a ladder.

By providing the window-shaped parts 3 and 3a, the impact-receiving wall part 1
The weakening of the fender was compensated for by the installation of chains 5 and 6 inside, and its original function as a fender was not impaired.

That is, in response to a collision of a ship, the impact receiving wall portion 1 transmits the impact to the support portion 2, and the support portion 2 absorbs the impact through its elastic deformation.

Furthermore, the presence of the chain 5 within the horizontal bar 4 eliminates the risk of the horizontal bar 4 being cut, and the function as a ladder is not impaired for a long period of time.

Furthermore, compared to conventional steel quay ladders, there is a big advantage that no painting is required, so there is no need for manpower for maintenance.

In the first and second embodiments described above, the chains 5 and 6 are connected to each other, and the impact wall portion 1 and the support portions 2 and ′ are formed as one body. The wall portion 1 and the support portion 2 may be formed separately and assembled later.

Alternatively, only the horizontal beam portion 4 may be formed separately, for example, as shown in FIGS. It is preferable to use steel plates 22 and 23 for the joints.

Further, in this case, the chain 6 connecting the steel plates 23 may be omitted.

Alternatively, instead of the steel chains 5 and 6, a tensile body such as a wire rope or a synthetic fiber rope may be used.

As mentioned above, this invention has excellent durability.
We can provide fenders that can be used as quay ladders.

[Brief explanation of drawings]

Fig. 1 is a front view of the first embodiment of this invention, Fig. 2 is a partially cutaway right side view of the same embodiment, Japan is a partially cutaway bottom view of the same embodiment, and Fig. 4 is the same as Fig. 3. Partial enlarged view of A-A cross section, No. 5
The figure is a partially omitted front view of the second embodiment, Fig. 6 is a partially cutaway left side view of the same embodiment, Fig. 7 is a partially omitted front view of the third embodiment, and Fig. 8 is a partially omitted front view of the same embodiment. The left side view and FIG. 9 are partially cutaway plan views of the same embodiment. 1... Impact-receiving wall part, 2, 2a... Support part, 3, 3a... Window-shaped part, 4... Horizontal beam part, 5, 6...Chain, 7,7a...Mounting part, 8...Reinforcement steel plate, 9...Anchor bolt insertion hole, 11... Quay, 12...
Anchor bolt.

Claims (1)

[Scope of utility model registration request] In the rubber fender material having a structure in which support portions protrude rearward from both side edges of the impact receiving wall portion so as to support the back surface of the impact receiving wall portion which is long in the vertical direction in a state away from the quay, A fender that can be used as a ladder and has a horizontal rung of a ladder formed by providing window-shaped parts lined up in the vertical direction on a wall, and a tensile member is embedded in the rubber of the rung.