JP2526544Y2 - Shock absorber between floating structure and fixed pile - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application field] The present invention relates to a shock absorber having a structure in which a floating structure such as a mooring berth or a landing area is fixed by a fixing pile disposed around the structure.

[Conventional technology]

Conventionally, in order to install floating structures such as mooring shores and landing sites at fishing ports and harbors located in the sea area with a great deal of variation,
Catenary mooring that is relaxed and moored by a chain or the like is common.

However, when the mooring is carried out by a chain or the like, the initial spring constant is extremely low, and the wind pressure causes the floating body to sway due to the wave force. Is generated, the above-mentioned objects and persons receive an unstable large state due to a large negative acceleration, and there is a problem that the work efficiency is reduced and the danger of the work is increased, and furthermore, there is a problem that a load collapse occurs.

In addition, there is also a problem that the mooring occupies a vast water area and hinders navigation of ships.

Therefore, in order to solve the above-mentioned problem, a pile 2 made of steel pipe or the like is cast around the floating structure 1 as shown in FIG.
A structure that suppresses movement by being arranged has been put to practical use.

There are two types of structures for controlling the movement of the floating structure, one of which forms a square at a predetermined interval on the peripheral side surface of the floating structure 1 as shown in FIG. The support 3 is provided as described above, and a roller 4 is rotatably attached to each side of the support 3 to form a shock absorber. The pile 2 is positioned in the support 3, and the periphery of the floating structure 1 is provided. The structure is such that the roller 4 of each support 3 does not contact the pile 2 due to the interaction.

Another structure is a structure in which a fender 5 for a quay of a predetermined length is attached to the inside of a surrounding pile 2 and is opposed to the floating structure 1 as a shock absorber, as shown in FIG.

[Problems to be solved by the invention]

The shock absorber installed between the pile and the floating structure reduces the impact load generated by the external force acting on the floating structure, and allows the floating structure to move up and down due to the tide. It is necessary.

However, the former technique can follow up and down movement caused by the ebb and flow of salt by rotating the roller, but has a problem that the effect of reducing the impact load can hardly be expected.

In addition, the latter technique can reduce the impact load, but if the floating structure is pressed against the fender and there is a vertical movement due to the ebb and flow of the tide, the fender is reduced by the frictional resistance. There is a problem of wear and damage, and furthermore, there is a problem that a long-length fender corresponding to the ebb and flow must be installed.

[Means for solving the problem]

According to the present invention, a rectangular support is formed around a side surface of a floating structure at a predetermined interval. A cushioning material having rollers attached thereto is provided, and an initial displacement is given to each of these cushioning materials in advance by a compression tool such as a bolt. Each of the piles arranged around the floating structure is passed through, and the compressor is removed, and the pile is sandwiched and fixed from three directions by three rollers.

[Action]

According to the above configuration, since the floating structure sandwiches each stake by the roller attached to the surrounding support, the floating structure can always obtain a stable state in the horizontal direction, and the wave force The generated impact load can be alleviated by the deformation of the cushioning material, and the vertical movement of the floating structure can be smoothly handled by the rotation of the rollers.

Embodiment An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a plan view of a floating structure and a pile, FIG. 2 is a plan view of one of the shock absorbers, FIG. 3 is a side view, and in FIG. It is a support attached at intervals, and in this embodiment, a frame forming a square.

Reference numeral 7 denotes a cushioning material attached to each side of the support 6 with bolts or the like, which is made of an elastic material such as rubber, and provided with a hollow portion 7a as necessary. Furthermore, this cushioning material 7
A compression tool 8 such as a pressurized bolt is fitted at a predetermined position, and a compression displacement is applied in advance.

Reference numeral 9 denotes a roller, which is rotatably mounted on a shaft of a roller receiving base 10 which is mounted on the cushioning member 7 with bolts or the like. The roller 9 may have a structure in which a spring constant is increased by alternately laminating rubber and synthetic fibers or alternately laminating rubber and synthetic resin in addition to a single structure such as rubber.

As described above, the roller 9 is attached to the cushioning member 7 via the roller receiving base 10 to form a whole, and attached to each side of the support 6 or two opposite bolts as described above to form a cushioning device. .

The stakes 2 are respectively arranged in the shock absorbers of the respective supports 6, and the rollers 9 of the respective shock absorbers are brought into contact with the outer periphery of the respective stakes 2. Then, when the compression tool 8 previously fitted to the cushioning member 7 is removed, the initial compression displacement is returned, and each roller 9 is pressed against the pile 2 by the repulsive force.

The interaction of the rollers 9 of the supports 6 attached to the periphery allows the floating structure 1 to be stably positioned in the horizontal direction without abutting on the fixed pile 2.

According to the above configuration, the vertical movement of the floating structure 1 due to the difference in ebb and flow can be smoothly coped with by the rotation of the roller 9, and the shock load generated by the external force can be alleviated by the deformation of the cushioning material. That is, the pile is sandwiched by the rollers, so that the pile is extremely stable in the horizontal direction.

In the above configuration, a pressurized bolt is shown as a compression tool in order to give an initial displacement in advance. However, the pressurized bolt is not necessarily limited to the pressurized bolt. For example, a clip or a pin may be used.

[Effect of the invention]

According to the present invention described in detail above, a support is attached at a predetermined interval around the side surface of the floating structure, and at least one cushioning material with a roller attached to the support is attached,
By positioning the pile so that it is sandwiched by these rollers, the floating structure can be obtained in a stable state in the horizontal direction, and the shock load generated by external force can be obtained by deformation of the cushioning material. This has the effect of being able to alleviate the movement and to smoothly cope with the vertical movement of the floating structure by the rotation of the rollers.

[Brief description of the drawings]

1 is a plan view of a floating structure and a pile showing an embodiment of the present invention, FIG. 2 is a plan view of one of a shock absorber, FIG. 3 is a side view, and FIG. 4 is a floating type showing a conventional example. Plan view of structures and piles,
FIG. 5 is a plan view of one of the shock absorbers, and FIG. 6 is a plan view of another conventional shock absorber. DESCRIPTION OF SYMBOLS 1 ... Floating structure 2 ... Pile 6 ... Support 7 ... Buffer material 8 ... Compressor 9 ... Roller

Continuation of the front page (56) References JP-A-56-120483 (JP, A) Japanese Utility Model Showa 55-40089 (JP, U) Japanese Utility Model Application Showa 59-1111813 (JP, U) The 33rd National Fishing Port Construction Technology Research Presentation Announcement Lectures, September 20, 1988, published by the Japan Fishing Port Association. 167-178

Claims (1)

(57) [Scope of request for utility model registration] 1. A rectangular support is attached at a predetermined interval around the side surface of a floating structure, and is provided on each of three sides of a surface facing the side of the floating structure inside each support and both side surfaces sandwiching the side. A cushioning material having rollers attached to the inside is provided, and each cushioning material is preliminarily given an initial displacement in a compression direction by a compression tool such as a bolt, and is formed by three rollers of each support member in this manner. A floating structure, wherein each of the piles arranged around the floating structure is passed through a space, and the compressor is removed, and the pile is sandwiched and set in three directions by three rollers. Shock absorber between fixing piles.