JPS6319375Y2 - - Google Patents

Description

[Detailed description of the invention] [Technical field of the invention] The present invention relates to a floating fender, and more specifically, to a floating fender that absorbs energy when a ship comes alongside or collides with structures such as dolphins, piers, and quays. , relates to improvements in floating fenders that prevent damage to ships and protect structures.

[Conventional technology]

In the past, this type of floating fender generally housed a bale-shaped floating fender with buoyancy, such as pneumatic fenders or foam fenders, in a chainnet, and was attached to the chainnet. It is constructed by mooring to the above-mentioned structure via a mooring device such as a chain, and when a ship comes alongside or collides with this structure, it absorbs the energy, prevents damage to the ship, and protects the structure. It is becoming possible to do so.

However, the conventional floating fender having the structure described above has the following drawbacks. That is, (1) The weight of the chain net itself is very heavy, so not only is the work of attaching it to the fender a heavy task, but the cost ratio of the chain net is 20 to 20%.
Very high at 25%.

(2) While moored, external forces such as tidal level fluctuations, tidal currents, and waves are constantly acting on the fender, so
The individual parts that make up the chain, such as chains, old tires, rubber sleeves, etc., rub against the structure, wear out, become deformed, or fall off.
Or corrode and shorten the lifespan.

(3) Furthermore, in the event of a ship coming alongside or in a collision, there is a risk that the chains, shackles, etc. that make up the chain network may damage the fender.

Therefore, in order to eliminate the above-mentioned drawbacks, a structure in which a protective cylinder is attached to the outer peripheral surface of the body of a floating fender has recently been proposed in place of the chain net described above.

However, floating fenders with such a structure also have the following problems. That is, during mooring, the protective cylinder attached to the outer peripheral surface of the body of the fender constantly rubs against the structure due to fluctuations in the tide level, currents, waves, etc. and wears out. However, since the conventional protective cylinder cannot visually check its wear state, the time to replace it is missed, shortening the life of the fender.

[Purpose of invention]

The present invention was developed as a result of studies to solve the above-mentioned problems.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide an excellent floating fender that does not require a chainnet and can easily determine the wear condition of the protective member.

[Structure of the idea]

In other words, the present invention includes a protective member made of a rubber-like elastic body that has a reinforcing layer embedded in the outer peripheral surface of the body of the fender main body, which has buoyancy and is equipped with mooring attachment fittings on both mirror parts. installed and configured;
The gist of the present invention is a floating fender characterized by forming a large number of grooves on the outer peripheral surface of the protective member.

〔Example〕

Hereinafter, the present invention will be explained in detail by way of examples with reference to the drawings.

Figures 1 to 3 show a floating fender according to an embodiment of the present invention, with Figure 1 being an explanatory front view, Figure 2 being an enlarged sectional view showing the main parts of the same, Figure 3 a, b is a front view explanatory view showing the shape of grooves formed on the outer circumferential surface of each protection member.

In the figure, E is a floating fender made of an embodiment of the present invention, which has buoyancy and both mirror parts 10.
fender main body 10 equipped with mooring device attachment fittings 11 on a
A protective member 2 made of a rubber-like elastic body with a reinforcing layer K embedded in the outer peripheral surface of the body 10b so as to cover it.
0, and a large number of grooves 21 are formed on the outer peripheral surface of the protective member 20.

To further explain this structure, the fender main body 10 is formed by forming a rubber-like elastic body with a reinforcing layer Ka embedded into a vertically elongated hollow body (bale shape) as shown in the figure, and in this embodiment, air is filled inside. It is constructed by enclosing it, and a mooring device mounting fitting 11 is provided in the center of the left and right mirror portions 10a.

In this embodiment, the mooring device mounting bracket 1
1 is composed of a cap plate 11a integrally attached to the center of each mirror portion 10a, and a U-shaped hook 11b protruding from each cap plate 11a.

Further, in this embodiment, as shown in FIG. 2, a protective member mounting recess 12 is formed on the outer circumferential surface of the body portion 10b of the fender main body 10 described above, in which the protective member 20 is mounted. A protection member 20 is attached within the recess 12. Therefore,
Even if the ship moves sideways with the fender main body 10 compressed when coming alongside a ship, it is possible to reliably prevent the protection member 20 from moving sideways, and the protection member 20 can prevent There is no risk of it falling off the sheath.

In this embodiment, the protective member mounting recess 12 was formed by directly providing a recess on the outer circumferential surface of the trunk 10b of the fender main body 10, as shown in FIG. When the protective member 20 is attached to the outer peripheral surface of the protective member 10, it is of course possible to form convex portions on the right and left edges of the protective member 20.

Further, the above-mentioned protection member 20 may be formed into a band shape and attached to the fender main body 10 by wrapping the band-shaped protection member 20 around the protection member attachment recess 12 with an adhesive. Alternatively, the cylindrical protection member 20 may be formed in advance into a cylindrical shape having a predetermined inner diameter.
may be fitted into the protective member mounting recess 12.

Furthermore, the shape of the groove 21 formed on the outer circumferential surface of the protective member 20 may be formed in a grid shape over the entire outer circumferential surface of the protective member 20, as shown in FIG. As shown in a, continuous zigzag grooves 21 may be arranged at predetermined intervals in the circumferential direction of the fender main body 10 over the entire outer peripheral surface of the protection member 20, and a third As shown in FIG. b, the concave groove 21
The other portions may have regularly arranged cylindrical convex portions 22. In short, the shape of the groove 21 described above should be formed in such a way that when the protective member 20 is worn out due to rubbing against a structure, the state of wear can be easily visually observed and the time for replacement can be accurately determined. good.

Therefore, in this embodiment, in order to make the wear state of the protection member 20 more easily visible, each convex portion 23 formed by each concave groove 21 is removed as shown in FIG. The fender main body 10 in
A wear indicating layer 24 such as a colored rubber sheet is buried slightly above the outer circumferential surface of the cover.
As a result, the above-mentioned replacement timing can be known more easily and accurately.

In other words, when each convex portion 23 of the protective member 20 is worn down to the wear indicating layer 24, the worn state of the protective member 20 can be visually observed very easily and reliably by the wear indicating layer 24.

In addition, the buried position of the wear indicating layer 24 mentioned above is as follows.
It is preferable to position it outward from the outer peripheral surface of the fender main body 10. Letting t be the distance between the outer circumferential surface of this wear indicating layer 24 and the outer circumferential surface of the fender main body 10, it is preferable to set t=several mm.

[Effect of idea]

Since the present invention is configured as described above, it has the following effects. That is, (1) there is no need to use chain nets to moor fenders as in the past; As a result, not only can costs be significantly reduced, but also transportation costs, mooring work costs, maintenance costs, etc. can be significantly reduced.

(2) Even if external forces such as tidal level fluctuations, tidal currents, waves, etc. act on the fender body during mooring, the outer peripheral surface of the fender is protected by a protective member made of a rubber-like elastic material with a reinforcing layer embedded in it. By installing this, it is possible to prevent wear on the surface of the fender body as much as possible, and it is possible to maintain a good cushioning effect over a long period of time.

(3) Furthermore, even if the protective member attached to the outer circumferential surface of the body of the fender main body rubs against the structure and wears out during mooring, in this invention, as mentioned above, the outer circumferential surface of the protective member Since a large number of grooves are formed in the fender, its wear condition can be easily checked visually, and it is possible to accurately know when to replace it, thereby extending the life of the fender body without missing the time to replace the protective member. It can be extended.

(4) As mentioned above, since the protective member is made of a rubber-like elastic body with a reinforcing layer embedded, it is possible to obtain a fender with excellent wear resistance, weather resistance, corrosion resistance, and impact resistance. can.

[Brief explanation of the drawing]

Figures 1 to 3 show a floating fender according to an embodiment of the present invention, with Figure 1 being an explanatory front view, Figure 2 being an enlarged sectional view showing the main parts of the same, Figure 3 a, b is a front view explanatory view showing the shape of grooves formed on the outer circumferential surface of each protection member. 10...Fender main body, 10a...Mirror parts on both sides of the fender main body, 11...Mooring device mounting bracket, 20...
Protective member, 21...concave groove, K...reinforcement layer.

Claims (1)

[Scope of utility model registration request] A protective member made of a rubber-like elastic body with a reinforcing layer embedded therein is attached to the outer circumferential surface of the trunk of a fender main body which has buoyancy and has mooring device mounting brackets on both mirror parts, so as to cover this, A floating fender characterized by forming a large number of grooves on the outer peripheral surface of this protective member.