JPH11280814A - Shock absorber - Google Patents

Abstract

PROBLEM TO BE SOLVED: To constantly keep the mooring tension properly by forming a frame body of a shock absorber used in the mooring for connecting an underwater anchor and a float body, into the shape of rhombus obtained by bendably connecting the adjacent rigid side wall plates of four sides, and forming a closed gas chamber inside of the frame body. SOLUTION: The rigid side wall plates 3 are mounted on four sides, and the side wall plates 3 adjacent to each other are bendably connected to form the rhombus-shaped frame body. A plurality of frame bodies are arranged in series in a state that one corner part of the frame body is faced to one corner part of the adjacent frame body, a connecting part for connecting the opposite corner parts of the frame bodies is throttled, and the partitioning frames 2 for partitioning the opened front face and rear face of the frame bodies into small opening areas are mounted. Then the front and rear partitioning frames 2 are connected, and an elastic body 5 such as soft rubber or the like having the thickness, is filled in a space partitioned by the partitioning frames 2. The partitioning frame 2 and the elastic body 5 are bonded to define a closed gas chamber inside of the frame body between the elastic bodies 5 of the front and rear faces, and the high pressure gas is enclosed in the gas chamber.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a ship,
The present invention relates to a shock absorber used for mooring connecting a floating body with an anchor submerged in the water bottom for mooring a floating body such as a fish cage.

[0002]

2. Description of the Related Art Conventionally, when mooring a floating body such as a general ship, work boat or work raft on the water, the anchor is lowered to the bottom of the water, and the anchor and the floating body are not stretchable mooring lines such as ropes and chains. They were moored because they were connected. Especially at sea, the tide level changes due to the rising and falling tides. Or In this state, if the water level changes due to the waves, abnormal tension is further applied. If the mooring cable is stretched in consideration of the rise of the tide level at the time of high tide, mooring the floating body will result in extra thickening at low tide, and the position of the floating body will not be stable, and the floating body will shake greatly. In addition, it is particularly affected in places where there is a great tidal range of 8 m to 10 m. On the other hand, there is a long mooring rope made of an elastic material. For changes in water level due to waves,
It is possible to respond by changing the length of the elastic body, but it is not possible to cope with a change in the tide level of 8m to 10m because a large deformation is required, and the deformation amount of the elastic body is large without going to 8m to 10m. It was too durable.

[0003]

SUMMARY OF THE INVENTION The problem to be solved by the present invention solves these problems of the prior art, and is 8 m to 10 m.
An object of the present invention is to provide a shock absorber that maintains mooring tension appropriately even when the tidal range is small, makes it easy to inspect the appearance of damage and deterioration, is durable, and generates displacement in accordance with water pressure.

[0004]

Means for Solving the Problems The constitution of the present invention which has solved the above problems is as follows: 1) A rigid side wall plate is arranged on four sides, and adjacent side wall plates are flexibly connected to each other to form a rhombic frame. Forming and providing a partition frame to partition into a small opening area on each of the open front and rear surfaces of the frame body, connecting the front and rear partition frames, filling the space defined by the partition frame with a thick elastic body. By joining the partition frame and the elastic body, a sealed gas chamber is formed inside the frame between the front and rear elastic bodies, high-pressure air is sealed in the gas chamber, and a band is formed around the outer periphery of the frame body. A shock absorber in which a load end is provided in bands at upper and lower corners of a frame body facing each other. 2) Rigid side walls are arranged on four sides, and adjacent side walls are flexibly connected to each other to form a rhombic frame. Body, and a plurality of frames are arranged in series with the corners of the frame facing each other. Connecting the opposite corners of the frame body, narrowing down the connection part of the attached frame body, and providing a partition frame for partitioning into a small opening area on each of the open front and rear surfaces of each frame body, the front and rear partition frames Connect, fill the space defined by the partition frame with a thick elastic body, join the partition frame and the elastic body,
A sealed gas chamber is formed inside the frame between the front and rear elastic bodies, high-pressure air is sealed in the gas chamber, and a long band is worn around the outer shape of the frame arranged in plurals. Then, the band is squeezed and bound at the connecting portion between the frame bodies and bound, and the shock absorber having both ends in the direction in which the frame bodies of the band are connected in series is a load end. 3) Comb-shaped partition plates are to be fitted loosely with each other. The buffer device according to the above 1) or 2), which is arranged in a lattice pattern to form a partition frame 4) The plurality of rings that can be deformed in an elliptical shape are arranged in a plurality and connected to each other to form the partition frame. 5) The buffer device according to any one of the above 5) The buffer device according to the above 2), wherein the gas pressure sealed in the gas chamber is set so that the gas pressure increases in accordance with one direction. 6) The gas inlet with a valve communicating with the gas chamber of the frame. The buffer according to any one of 1) to 5) above, wherein The pressure of the gas sealed in location 7) the gas chamber is set to be always higher pressure than water pressure 1) to 6) in the buffer device of any one.

[0005]

In the shock absorber according to the present invention, high-pressure air is sealed in the internal gas chamber and the front and rear partition frames are connected, so that the partition frame to which the elastic body is attached by the high-pressure air in the gas chamber faces outward. This prevents deformation and the joining force from being dislodged. When tension is applied to the upper and lower load ends of the shock absorber of the present invention, tension is applied to the band fixed to the outer periphery of the frame. Therefore, the band divided into the left and right sides from the upper and lower load ends applies a force in the direction of compressing the frame. The frame body has rigid side walls arranged on four sides and is connected such that each side is freely bendable. A force for compressing the frame is not applied to the connected upper and lower load ends, and a force for compressing the frame is applied to the connection portions of the frames located on the left and right sides. Then, each side of the frame body is bent so that both right and left ends approach each other, and the frame body extends vertically. At this time, the high-pressure gas sealed in the gas chamber inside the frame is compressed, and the partition frame is deformed and displaced together with the frame, whereby the elastic body provided in the partitioned space is compressed. When the tension applied to the upper and lower load ends is lost, the original shape is restored by applying a reaction force of the compressive force of the gas in the frame body gas chamber, and the upper and lower parts of the frame move. When a tension is applied to the upper and lower load ends by this movement, the buffer is performed. Further, in the shock absorber of the present invention, the mooring line is attached with the shock absorber of the present invention at low tide so that the floating body is moored with a certain tension, and thereafter when the tide changes to high tide, the tide level rises, and the vicinity of the shock absorber is increased. The pressure of the gas in the gas chamber acts due to the pressure difference between the water pressure and the high pressure gas sealed in the gas chamber inside the frame. The open front and rear surfaces of the frame are not deformed because the rigidity is increased by the partition frame. Since the elastic body provided at the divided position has a thickness, it does not significantly deform toward the inside. Therefore, the force for compressing the gas in the gas chamber is deformed so that the left and right sides of the rhombus of the frame approach each other. Due to this pantograph-like deformation, the entire length of the mooring line is elongated, so that even if a tide level difference occurs, the floating body is moored with an appropriate tension. In addition, the partition frame is deformed in the same manner as the frame body to compress and deform the elastic body, which becomes a restoring force of the partition frame. Thereafter, when the tide reaches low tide, the water pressure around the shock absorber of the present invention decreases by lowering the tide level, so that the shape of the frame body is based on the expansion force of the gas in the frame and the restoring force of the elastic body. Return. In this manner, the floating body is moored while maintaining an appropriate tension corresponding to the tide difference. Comb-shaped partition plates are arranged in a lattice shape so that the comb teeth are aligned with each other to form a division frame. The partition frame can be displaced. When a plurality of rings that can be deformed in an elliptical shape are arranged and connected to each other to form a division frame, the division frame itself has a restoring force by the elastic force of the ring. A structure in which a plurality of frame bodies are connected can be greatly deformed, and can be used even in a place where the tide difference is large. When the gas pressure to be sealed in the gas chamber inside the frame is set according to the depth, the gas pressure corresponding to the high water pressure in the deep place and the low water pressure in the shallow place should be sealed in the gas chamber inside the frame. Thereby, the deformation amounts of the frames located at the deep and shallow places are made substantially uniform. What is set so that the gas pressure to be sealed in the gas chamber is always higher than the water pressure is such that the elastic body and the partition frame provided in the space partitioned by the partition frame always receive outward force, The stress caused by repeated inward and outward deformation is not applied.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION As a material of a side wall plate, F.I. R.
P. There are various resins such as, and those with water resistance are good,
Those having the strength to withstand water pressure are preferable. As a material for connecting the side wall plates, there are hard rubber and soft rubber, and those having water resistance are preferable. If the gas can be sealed, a part of the side wall plates may be connected or the entire side may be covered. The high-pressure gas to be sealed inside the frame may be air. Examples of the material of the partition frame that appropriately responds to the full tide difference include rubber, resin, and cloth, which are less likely to be deformed than an elastic body and have a tensile strength. The elastic body includes a soft rubber or a rubber having air therein, and it is preferable that the elastic body be easily deformed, easily restored, and have water resistance.

[0007]

Embodiment 1 In Embodiment 1 shown in FIGS. 1 to 6, rigid side walls are arranged on four sides, and adjacent side walls are connected to bend freely to form a rhombic frame. A plurality of corners are arranged in series so as to face each other, the opposite corners of the frame are connected, the connection part of the attached frame is narrowed down, and each of the open front and rear surfaces of each frame is reduced to a small opening area. A partition frame for partitioning is provided, the front and rear partition frames are connected, the space defined by the partition frame is filled with a thick elastic body, the partition frame and the elastic body are joined, and the space between the front and rear elastic bodies is provided. A sealed gas chamber is formed inside the frame body, high-pressure air is sealed in the gas chamber, a long band is wrapped around the outer shape of the arranged frame bodies, and the band is placed between the frame bodies. Squeeze and bind at the joint, and use both ends of the band frame in the direction The partition plates are arranged in a lattice shape so that the comb teeth are loosely aligned with each other to form a division frame, and the gas pressure to be sealed in the gas chamber is increased according to one direction, and the pressure is always higher than the water pressure. It is an example of a shock absorber provided with a gas inlet with a valve which is set to be at a pressure and communicates with a gas chamber of each frame. FIG. 1 shows the first embodiment.
It is a front view of the shock absorber of FIG. FIG. 2 is a sectional view of the shock absorber of the first embodiment taken along line AA. FIG. 3 shows B of the shock absorber of the first embodiment.
It is -B sectional drawing. FIG. 4 is an explanatory diagram illustrating an operation state of the shock absorber according to the first embodiment due to a tide difference. FIG. 5 is an explanatory diagram illustrating a combination state of the partition plates of the shock absorber according to the first embodiment. FIG. 6 is an explanatory diagram illustrating a state in which the shock absorber according to the first embodiment is used. In the figure, 1 is a shock absorber, 2 is a partition frame, 3 is a side wall plate, 4 is a partition plate, 5 is soft rubber, 6 is a floating body, 7 is a gas inlet, 8 is a cap, 9 is a gas passage, 1
0 is a pin hole, 11 is a band, 12 is an anchor, 13 is a pin boss, 14 is a hard rubber frame, 15 is a band stopper,
17 is a gas chamber inside the frame, and 18 is a groove in the partition plate.
As shown in FIGS. R.
P. The side wall plate 3 made of aluminum is attached to the outside of a hard rubber 14 used as a frame. Further, as shown in FIG. 5, a comb-shaped front and rear partition plate 4 is arranged inside the frame body 14 in a lattice shape by fitting the grooves 17 with the grooves 17 so that the comb teeth are aligned with each other. A partition frame 2 is formed and provided. The groove 17 is larger than the plate thickness of the partition plate 4, and can be tilted after fitting. The partition plate 4 located at the center is provided with a number of holes so that the inside of the gas chamber communicates. The partition plate 4 combined with the partition plate 4 is connected by an elastic body. The arranged partition plates 4 and the inside of the frame body 14 are connected by an elastic body. Next, a soft rubber 5 which is an elastic body having a size and shape to be fitted in a space defined by the arranged partition plates 4 is bonded and provided. Further, the partition plate 4 and the soft rubber 5
As shown in FIG. 2, a high pressure air is sealed in a gas chamber 17 inside the frame, and is used for a partition plate 4 and a combination portion of the partition plate 4. The high-pressure air is sealed in the gas chamber 17 inside the frame 14 by the elastic body, the elastic body used to connect the combined partition plate 4 and the inside of the frame 14, the inside of the frame 14, and the soft rubber 5. Gas chamber 17 located at the center of the front and rear partition plates
The front and rear partition frames are connected by a partition plate provided with a hole communicating with the partition wall, so that the partition frame and the elastic body formed of the partition plates are prevented from being dislodged to the outside by high-pressure air. This improves the durability of the shock absorber. The ratio of the thickness of the elastic body: the air chamber: the elastic body is approximately 1: 3: 1,
Pressure is uniformly applied to each elastic body. In the first embodiment, two frame members 14 are integrally connected by hard rubber to form one unit. Two integrated frames 1
The two pin bosses 13 are provided on the upper and lower portions of 4 to enable a plurality of mountings. Further, a band 11 is provided on the outer periphery of the two frame members integrated with each other as shown in FIG. Further, a gas passage is provided so as to connect the air-sealed portions of the gas chambers 17 inside the two integrated frame members, and the gas passage is connected to the outside to adjust the amount of air sealed inside the frame member. An inlet 7 is provided. Further, a cap 8 is provided to protect the gas inlet 7. Another two integrated frame members are attached to pin bosses 13 provided above and below the two integrated frame members with bolts and nuts, and a plurality of these are connected as shown in FIG. 6 to be used for mooring the floating body. . In the first embodiment, as shown in FIG. 6, an anchor 12 is attached to the lower end of the shock absorber 1, and the upper end of the shock absorber 1 is attached to the floating body, and used for mooring the floating body 6. The upper end of the shock absorber of the first embodiment is attached to the floating body 6, the lower end is attached to the anchor and left standing in the water, and the floating body 6 is moored in low tide. When the tide changes to full tide, the water level rises. As shown in FIG. 4B, the frame body seals high-pressure air in the gas chamber 17, so when the water pressure applied to each frame body 14 rises as the water level rises, the plurality of buffer devices 1 arranged The gas chamber 17 is filled with high-pressure air so that the pressure inside the barometric pressure always exceeds the water pressure with respect to the water pressure received at each depth. Therefore, when the water pressure changes from low tide to high tide and the water pressure increases, only the difference of the changed water pressure is obtained. A force for compressing the high-pressure air in the gas chamber 17 acts. Since the front and rear surfaces on which the soft rubber 5 is provided are made of a plurality of small soft rubbers and are thickened, and the partition plate is provided, the front and rear surfaces are prevented from being deformed by water pressure to crush the front and rear surfaces. Accordingly, the frame body is deformed into a thin rhombus shape so that the diagonal lateral direction contracts and the vertical direction extends. At this time, since the partition plate, the partition plate and the inside of the frame body 14 and the partition plate 4 are connected by an elastic body, the partition plates 4 are tilted so that the partitioned space created by the partition plate 4 becomes a thin rhombus. The soft rubber 5 which is an elastic body provided to fit into the space defined by the partition plate 4 is deformed into a thin rhombus by applying a force to the partition plate 4. At this time, since the soft rubber 5 is divided into lattice-like sizes, a large amount of deformation is not required as compared with the case where the soft rubber 5 is formed by one soft rubber, and the plurality of soft rubbers 5 are deformed. Therefore, tensile and compressive stress during deformation are dispersed. Thus, the durability is improved by suppressing the deformation amount and stress of the soft rubber. Due to such a pantograph deformation, the length of the mooring line will be extended, and even if there is a tide level difference, the floating body will be moored with appropriate tension, so it is necessary to adjust the mooring line at ebb tide Disappears and keeps the floating body in a stable state. Further, the buffer body is deformed in response to a change in water level such as a rising tide, so that the floating body can be moored at the same position while maintaining an appropriate tension, as in the case of low tide. Further, since the air pressure inside the frame body is adjusted according to the depth by the gas injection port 7, the deformation amount corresponding to the increase in the water pressure is made substantially constant, and the durability is improved. In the first embodiment, as shown in FIG. 6, a large number of shock absorbers are connected and greatly deformed, so that a tidal range of about 8 to 10 m can be handled. Thereafter, when the tide rises, the restoring force of the soft rubber 5 and a decrease in the water pressure due to a decrease in the tide level cause the expansion of the air sealed in the gas chamber 17 of the frame 14, thereby extending the diagonal direction of the frame 14 in a lateral direction, The floating body contracts in the vertical direction, and the floating body is moored as it is while maintaining an appropriate tension, so that the floating body is not washed away by the slack of the mooring cable. In addition, the soft rubber 5, which is an elastic body attached to a plurality of lattices, has the same amount of deformation on the inner side and the outer side, and the inner side does not deteriorate due to deformation before the surface. It is enough to check according to the degree. In addition, if the elastic body is made transparent or translucent, the inside can be inspected. In the shock absorber of the present invention, at both low tide and high tide, the force for moving the floating body due to waves or the like temporarily works, and when tension acts on the shock absorber of the present invention, the shock absorber on the outer periphery of the frame body 14. A tension is applied to the band 11 around the circumference, and a compressive force is applied to the left and right sides of the frame body 14, and each side is bent so as to approach the left and right ends as shown in FIG. Become. Further, when the vertical tension is lost, the left and right sides are extended and contracted up and down due to the expansion force of the air in the compressed gas chamber 17 and the restoring force of the elastic body. Buffer and stabilize the floating body. Embodiment 2 (see FIGS. 7 and 8) Embodiment 2 shown in FIGS. 7 and 8 is an example in which a plurality of rings that can be deformed in an elliptical shape are arranged and connected to each other to form a partition frame. FIG. 7 is an explanatory diagram illustrating an operation state of the shock absorber according to the second embodiment due to a tide difference. FIG. 8 is a sectional view of the shock absorber of the second embodiment. In the figure, reference numeral 16 denotes a ring. In the second embodiment, as shown in FIGS. 7 and 8, a plurality of deformable rubber rings 16 are arranged, connected by an elastic body, and attached inside the frame. The ring is provided with a hole in the front and rear center for communicating the gas chamber, thereby forming the partition frame and the gas chamber. As shown in FIG. 7, since the ring 16 is deformed into an ellipse due to a tide, when the tide changes from a high tide to a low tide, the restoring force of the elastic body, the expansion force of the air sealed inside, and the ring 16 Since the restoring force is applied, the frame body is surely deformed and restored corresponding to the tidal range. Others, signs, configuration, operation, and usage are the same as those in the first embodiment. Third Embodiment (see FIG. 9) FIG. 9 is a front view of a shock absorber according to a third embodiment. In a third embodiment shown in FIG. 9, rigid side wall plates are arranged on four sides, adjacent side wall plates are flexibly connected to each other to form a rhombic frame, and a frame is formed on each of the open front and rear surfaces of the frame. A partition frame with a small opening area is provided so that it can be deformed and displaced together with the body, a thick elastic body is provided in the space defined by the partition frame, and sealed inside the frame between the front and rear elastic bodies This is an example of a shock absorber in which a gas chamber is formed, a band is wrapped around the outer periphery of a frame, and a load end is provided on bands at upper and lower corners of the frame. The third embodiment is a shock absorber having a single frame for use in places where waves are relatively gentle, such as lakes and ponds. In addition, reference numerals, configurations, operations, and usages are the same as those in the first embodiment.

[0008]

According to the present invention, a buffer device which maintains a mooring tension appropriately for a tidal range, easily inspects the appearance of damage / deterioration, is durable, and generates displacement in accordance with water pressure. Can be provided. When the partition frame is formed by arranging the comb-shaped partition plates in a lattice shape so that the comb teeth are aligned with each other, the partition frame can be formed with an inexpensive configuration, and the cost of the shock absorber can be suppressed. Those that form a division frame by arranging a plurality of rings that can be deformed in an elliptical shape, give the division frame itself a restoring force,
Make the shock absorber correspond to the tide level difference more reliably. By connecting a plurality of frame bodies, even if the ebb and tide difference is 8 m to 10 m, the mooring tension is appropriately maintained and the floating body is stabilized. The one provided with the gas inlet is adapted to be used in various places according to the situation such as shallow and deep by adjusting the deformation amount due to the water pressure by changing the internal gas pressure. When the gas pressure to be sealed inside the frame is set in accordance with the depth, the amount of deformation of the frame located at a deep place and a shallow place is made substantially uniform, and the durability is further improved. If the gas pressure sealed in the gas chamber is set to be always higher than the water pressure,
The durability of the shock absorber is improved by preventing the connection from coming off.

[Brief description of the drawings]

FIG. 1 is a front view of a shock absorber according to a first embodiment.

FIG. 2 is a sectional view taken along line AA of the shock absorber according to the first embodiment.

FIG. 3 is a sectional view of the shock absorber according to the first embodiment taken along line BB.

FIG. 4 is an explanatory diagram illustrating an operation state of the shock absorber according to the first embodiment due to a tide difference.

FIG. 5 is an explanatory view showing a combined state of a partition plate of the shock absorber of the first embodiment.

FIG. 6 is an explanatory diagram illustrating a state in which the shock absorber according to the first embodiment is used.

FIG. 7 is an explanatory diagram illustrating an operation state of the shock absorber according to the second embodiment due to a tide difference.

FIG. 8 is a sectional view of a shock absorber according to a second embodiment.

FIG. 9 is a front view of a shock absorber according to a third embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Shock absorber 2 Partition frame 3 Side wall plate 4 Partition plate 5 Soft rubber 6 Floating body 7 Gas inlet 8 Cap 9 Gas passage 10 Pin hole 11 Band 12 Anchor 13 Pin boss 14 Hard rubber 15 Band stopper 16 Ring 17 Gas in frame body Room 18 Groove of partition plate

Claims (7)

[Claims] 1. Rigid side walls are arranged on four sides, and adjacent side walls are flexibly connected to each other to form a rhombic frame, and a small opening area is provided on each of the open front and rear surfaces of the frame. A partition frame is defined, and the front and rear partition frames are connected, a thick elastic body is filled in the space defined by the partition frame, the partition frame and the elastic body are joined, and the front and rear elastic bodies are joined. A sealed gas chamber is formed inside the frame body, high-pressure air is sealed in the gas chamber, a band is wrapped around the outer periphery of the frame body, and a load end is attached to bands at upper and lower corners of the frame body facing each other. Shock absorber provided. 2. Rigid side walls are arranged on four sides, and adjacent side walls are flexibly connected to each other to form a rhombic frame, and a plurality of frames are connected in series such that corners of the frame oppose each other. Arrange, connect the opposite corners of the frame body, narrow down the connection part of the attached frame body, provide a partition frame that partitions into a small opening area on each of the open front and rear surfaces of each frame body, A gas chamber sealed by connecting the frames, filling a thick elastic body in the space defined by the partition frame, joining the partition frame and the elastic body, and sealing the inside of the frame between the front and rear elastic bodies Is formed, high-pressure air is sealed in the gas chamber, a long band is wrapped around the outer shape of the frames arranged in a plurality, and the bands are squeezed and bound at the connecting portion between the frames to form a band. A shock absorber in which both ends in the direction in which the frames are connected in series are load ends. 3. The shock absorber according to claim 1, wherein the comb-shaped partition plates are arranged in a lattice shape so that the comb teeth are loosely fitted to each other to form a partition frame. 4. The shock absorber according to claim 1, wherein a plurality of rings that can be deformed in an elliptical shape are arranged and connected to each other to form a partition frame. 5. The shock absorber according to claim 2, wherein the gas pressure sealed in the gas chamber is set so as to increase according to one of the pressures. 6. The shock absorber according to claim 1, further comprising a gas inlet with a valve communicating with the gas chamber of the frame. 7. The shock absorber according to claim 1, wherein the pressure of the gas sealed in the gas chamber is set to be always higher than the water pressure.