JPH0118670Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a mounting structure for a shock absorber. The present invention also relates to improvements in mounting structures for shock absorbers used to protect underwater structures.

[Conventional technology]

Conventionally, when attaching a mounting structure for a shock absorber including a fender to an underwater structure such as a quay or a bridge pier, generally the mounting portion of the fender, such as a mounting plate, is attached to an anchor bolt buried in the underwater structure in advance. This is done by fixing with a mounting nut or the like.

However, in such a mounting structure, a concentrated load may be applied to the anchor bolt due to an oblique collision of a ship with an underwater structure, and the anchor bolt may be damaged together.

In such a case, in order to install a new anchor bolt, it is not only necessary to rework a part of the underwater structure, but also it is practically difficult to replace the anchor bolt on-site under severe weather and sea conditions. Also, if the fender is damaged and needs to be replaced,
It is necessary to remove all the mounting nuts, but since the installation location is near the splash zone where the corrosive environment is the most severe, the mounting nuts etc. corrode and are extremely difficult to replace. be.

[Purpose of invention]

The purpose of this invention is to solve the above-mentioned problems, greatly facilitate the installation work and replacement work to underwater structures, and to create an excellent product that can reduce the impact force on the installation part when receiving an impact. The object of the present invention is to provide a mounting structure for a shock absorber.

[Structure of the idea]

That is, the present invention installs a guide rail in a water level fluctuation area of an underwater structure so that its longitudinal direction coincides with at least the water level fluctuation direction of the underwater structure or in a direction diagonal to the water level fluctuation direction, and also installs a fender having buoyancy. A cushioning device characterized in that a guide panel having a material body mounted thereon is slidably attached to the guide rail, and a sliding member made of an elastic polymer material is provided at a sliding portion between the guide rail and the guide panel. The gist of this article is the mounting structure of the device.

〔Example〕

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

Figures 1 to 7 show embodiments of the present invention. Figure 1 is a partially cutaway explanatory perspective view showing how the first embodiment is attached to an underwater structure, and Figure 2 is the same as above. A partially cutaway perspective explanatory diagram showing the fender part,
Fig. 3 is a front view explanatory view showing how the second embodiment is attached to an underwater structure, Fig. 4 is an explanatory cross-sectional view taken along the line A-A in Fig. 3, and Fig. 5 shows the fender portion of the same. FIGS. 6 and 7 are partially cutaway perspective and enlarged explanatory views showing, in particular, the guide rail portion of the mounting structure for the shock absorber according to other embodiments.

In the figure, E denotes a mounting structure for a shock absorber according to each embodiment of the present invention, which has its longitudinal direction aligned with at least the water level fluctuation area of the underwater structure G in the water level fluctuation direction or in a diagonal direction with the water level fluctuation direction. A guide rail 10 is attached, and a guide panel equipped with a fender main body having buoyancy is slidably attached to the guide rail, and on the sliding portion a and/or b between the guide rail and the guide panel, It is constructed by providing a sliding member 30 made of an elastic polymer material.

To further explain this structure, the guide rail 10 is formed with a sliding portion b having a U-shaped cross section. As shown in FIGS. 1 and 3 in each of the embodiments, the guide rails 10 are installed in the water level fluctuation area of the underwater structure G, and each guide rail 10 is attached to the underwater structure G as shown in FIGS. 1 and 3. The moving parts b are opposed to each other and spaced apart in parallel, and the moving parts b are installed so that their longitudinal direction coincides with the direction of water level fluctuation.

And between the sliding parts b of this guide rail 10, so that it can be attached and removed using this sliding part b as a guide,
The guide panel 21 to which the fender main body 22 is attached is attached via the sliding portion a provided with the sliding member 30 made of the elastic polymer material.

In the first embodiment, this fender 20 is
As shown in FIG. 2 and FIG. 2, especially FIG. 2, a panel 21 is provided with sliding members 30 made of an elastic polymer material on both left and right edges constituting a sliding portion a with the guide rail 10, and The fender main body 22 is attached to the ship's side side of the panel 21 at vertical intervals.
and an impact receiving plate 23 attached to the ship's side side of each fender main body 22.

In addition, outer layers of hooks 40 are attached to the upper edge of the panel 21 at intervals, and during construction or when replacing the fender 20, the hooks 40 attached to the panel 21 can be used to transport cranes, etc. Lift up the fender 20 by lifting the fender 20.
By dropping the panel 21 along the sliding portion b of the guide rail 10, construction and replacement work can be easily performed.

Note that this fender 20 may be constructed of a fender main body 22 and a panel 21 without the impact plate 23 as in the present embodiment described above, or a fender main body 2
2 itself is attached with a bottom plate (not shown), and this bottom plate can also be used as the panel 21, and the fender main body 22 can be made of rubber-like elastic material in addition to rubber-like elastic material. Possible examples include a combination of reinforcing materials such as fiber cords, plastic deformation materials, brittle fracture materials, and combinations of these materials.

In this embodiment, the sliding member 30 made of an elastic polymer material is attached to the guide rail 10 as described above.
Although it is attached to the left and right edges of the panel 21 that constitutes the sliding part a of the guide rail 10, it can also be attached to the sliding part b formed inside the guide rail 10 in the longitudinal direction as shown in FIG. Alternatively, as shown in FIG. 7, it may be attached to the outer peripheral surface of the guide rail 10 so as to cover it. Furthermore, the guide rail 10
It goes without saying that it may be attached to both the left and right edges of the panel 21 constituting the sliding portion a of the guide rail 10 and the sliding portion b of the guide rail 10.

Reference numeral 13 in the figure is a stopper member, which is attached to the lower end of each of the guide rails 10 described above so as to horizontally connect them. Material 2
0 from coming off the guide rail 10. When the cross-sectional shape of the stopper member 13 is formed into a U-shape like the guide rail 10 as in the above-described embodiment, the lower edge of the panel 21 of the fender 20 is also formed as shown in FIG. As shown in the figure, a sliding member 30 made of an elastic polymer material is attached.

Moreover, an elastic polymer material such as rubber, nylon, or Teflon is used for the above-mentioned sliding material 30, and the sliding portion a of the sliding material 30 with respect to the guide rail 10 of the fender 20 and/or the guide The means for attaching the rail 10 to the sliding portion b may be vulcanization adhesion, bolt fastening, or the like.

The guide rail 10 may be arranged diagonally in the direction of water level fluctuation within a range where the fender 20 can be dropped.
Furthermore, if there is play in the sliding portion b, bolt holes or the like may be provided in the guide rail 10 as appropriate, and the movement of the fender 20 may be suppressed using holding bolts.

When a ship collides with the shock absorber mounting structure E of this embodiment, since the sliding material 30 is interposed between the panel 21 and the guide rail 10 as described above, the impact force acting on the guide rail 10 is reduced. It can be relaxed. Therefore, the guide rail 10 is not deformed and the end of the panel 21 is not deformed.
Moreover, damage to the underwater structure G on which the guide rail 10 is arranged can be prevented.

In addition, when a ship does not collide, the fender 20 is affected by tidal currents,
Although fluctuating external forces such as waves act on the sliding portion a of the fender 20, since the sliding member 30 having elasticity is provided, rattling can be suppressed and the impact can be alleviated, so that the guide rail 10 and Deformation of the panel 21 can be prevented, and the attachment bolts of the fender 20 to the panel 21 will not loosen, making it possible to prevent the fender 20 from falling off.

Furthermore, sliding materials 30 are placed on the left and right edges of the panel 21.
It has a great anti-corrosion effect because it is coated with

In addition, during construction or when replacing the fender 20, the fender 20 is lifted by a crane or the like using the hook 40 attached to the panel 21 of the fender 20, and the panel 21 of the fender 20 is removed. It is only necessary to drop it along the sliding part b of the guide rail 10, which greatly simplifies the construction and replacement work.

Next, a second embodiment of the present invention shown in FIGS. 3 to 5 will be described.

The main structure of the shock absorber mounting structure E of this embodiment is the same as that of the first embodiment shown in FIGS. 1 and 2, so a detailed explanation will be omitted here, but this embodiment The feature is that the fender 20 is given buoyancy so that even if the water level fluctuates due to the ebb and flow of the tide, the fender 20 can be raised and lowered automatically according to the fluctuations. 20 can be held at a proper position at all times. That is, in the second embodiment, as shown in FIGS. 3 to 5, especially FIG. Panel 2 provided with sliding material 30 made of material
1, and a fender main body 2 having buoyancy attached to the ship's side side of the panel 21 at vertical intervals.
2, and an impact receiving plate 23 attached to the ship's side side of each fender main body 22.

In the second embodiment, the fender main body 22 is a cylindrical body 22a made of an airtight rubber-like elastic body with a reinforcing layer (not shown) embedded therein.
and a cover plate 22b integrally attached to both open end surfaces of this cylindrical body 22a to cover it, and air is sealed inside this cover plate 22b.

It should be noted that the fender may be of any material as long as it has buoyancy, and the structure of the fender main body 22 is of course not limited to that described above.

Furthermore, the underwater structure G side cover plate 22b of the fender main body 22 may be used instead of the panel 21 described above. In this case, sliding members 30 made of an elastic polymer material may be directly attached to both left and right edges of the cover plate 22b that constitutes the sliding portion a with the guide rail 10.

In this embodiment, since buoyancy was imparted to the fender 20, the fender 20 having this buoyancy
0 is attached to the guide rail 10 so that it can be raised and lowered, even if the water level fluctuates due to the ebb and flow of the tide, the fender 20 can be automatically raised and lowered in accordance with the fluctuations. The material 20 can be held at a proper position at all times.

Further, as described above, when a ship comes alongside, or when a ship comes alongside, or when tidal currents or waves act on the sliding part a of the fender 20 with the guide rail 10 and the sliding part b of the guide rail 10, The external force is applied to the sliding member 30.
The sliding part a of the fender 20 with the guide rail 10 can be absorbed and buffered by the elasticity of the fender 20.
And deformation of the guide rail 10 can be prevented. As a result, good mobility of the fender 20 can be maintained for a long period of time.

Further, it is possible to prevent the occurrence of rust on the sliding part a of the fender 20 with respect to the guide rail 10 and/or the sliding part b of the guide rail 10, and due to the good sliding properties of the sliding material 30, rust can be prevented. Good mobility of the shelving material 20 can be maintained for a long period of time.

[Effect of idea]

As described above, the present invention includes installing a guide rail at least in the water level fluctuation area of an underwater structure with its longitudinal direction aligned with the water level fluctuation direction or in a diagonal direction with the water level fluctuation direction, and at the same time installing a fender on this guide rail. Since the fender is movably mounted, and a sliding member made of an elastic polymer material is provided on the sliding portion of the fender with the guide rail and/or the sliding portion of the guide rail, the following effects can be achieved. That is, (a) it is possible to facilitate the work of attaching and removing fenders to underwater structures;

(b) The sliding part of the fender with the guide rail and the sliding part of the guide rail are affected by the elasticity of the sliding material when a ship comes alongside or external forces such as tidal currents and waves act through the fender. Since it can be absorbed and buffered by the fender, deformation of the sliding portion of the fender with the guide rail and the guide rail can be prevented.

(c) Rust can be prevented from forming on the sliding parts of the fender and the guide rail, and/or on the sliding parts of the guide rail.
The life of the shock absorber mounting structure can be extended.

(d) Furthermore, the mounting structure of the shock absorber can be easily replaced because the mounting portion is not deformed either in the event of a collision or in the event of a non-collision.

(e) Since the buoyant fender is slidably attached to the guide rail, even if the water level fluctuates due to the ebb and flow of the tide, it will automatically move to follow the fluctuation, and will always be Located in sea-level waters, it can function as a fender to protect underwater structures and ships.

[Brief explanation of the drawing]

Figures 1 to 7 show embodiments of the present invention. Figure 1 is a partially cutaway explanatory perspective view showing how the first embodiment is attached to an underwater structure, and Figure 2 is the same as above. A partially cutaway perspective explanatory diagram showing the fender part,
Fig. 3 is a front view explanatory view showing how the second embodiment is attached to an underwater structure, Fig. 4 is an explanatory cross-sectional view taken along the line A-A in Fig. 3, and Fig. 5 shows the fender portion of the same. FIGS. 6 and 7 are partially cutaway perspective and enlarged explanatory views showing, in particular, the guide rail portion of the mounting structure for the shock absorber according to other embodiments. 10...Guide rail, 20...Fender, 30
...Sliding material, a...Guide rail 1 of fender material 20
0, b...Sliding part of the guide rail 10, G...Underwater structure.

Claims (1)

[Scope of utility model registration request] A guide rail is installed in the water level fluctuation area of the underwater structure so that the longitudinal direction of the underwater structure coincides with at least the water level fluctuation direction or a direction diagonal to the water level fluctuation direction, and a fender main body having buoyancy is attached. A mounting structure for an underwater structure, wherein a guide panel is slidably attached to the guide rail, and a sliding member made of an elastic polymer material is provided at a sliding portion between the guide rail and the guide panel.