JP7209389B2 - concatenated structure - Google Patents

Description

TECHNICAL FIELD The present invention relates to a connection structure, and more particularly to a connection structure used for the purpose of connecting a quay or the like and a ship or the like, or for the purpose of connecting a horizontal rope member and a support in a protective fence.

FIG. 12 is a schematic diagram showing how a conventional connecting structure is used.

Referring to the figure, each of a plurality of ships 83a to 83c floating on an ocean 84 includes a plurality of mooring posts 86a to 86c fixedly installed on a quay wall 85 at predetermined intervals, and mooring ropes 87a such as wire ropes. 87c and each of the connecting structures 81a to 81c arranged and connected at intermediate positions thereof.

Each of the ships 83a-83c moored in this manner may be greatly shaken by strong winds, rough seas, etc. At this time, a large tensile force is applied to each of the mooring ropes 87a-87c. At this time, as will be described later, each of the connecting structures 81a to 81c has a cushioning function to alleviate the tensile force, thereby preventing the mooring cables 87a to 87c from being cut.

Next, the structure of the connecting structure 81a will be described.

FIG. 13 is a cross-sectional view taken along line XIII--XIII shown in FIG.

12 and 13, the connecting structure 81a has a substantially cylindrical external shape and is connected at both ends to mooring ropes 87a on the mooring post 86a side and mooring ropes 87a on the ship 83a side. . Inside the connecting structure 81a, a plurality of metal rings 88a to 88e are embedded in an elastic body 89 such as rubber with spaces 90a to 90d provided to prevent the adjacent rings 88 from directly contacting each other. configured as follows.

As a result, when a tensile force (a tensile force applied in the directions of arrows 82a and 82b) is applied to the mooring cable 87a due to the rocking of the ship 83a shown in FIG. The filled elastic body 89 is compressed and elastically deformed by the tensile force, and as a result, the entire connecting structure 81a is deformed so as to stretch, thereby buffering the tensile force applied to the mooring cable 87a and cutting the mooring cable 87a. is prevented.

As another aspect of the connection structure, Patent Document 1 discloses a mooring structure that combines an elastic body that torsionally deforms and buffers tensile force applied to a mooring cable and a link mechanism that converts the tensile force into a torsional force on the elastic body. damper devices have been proposed.

Further, Patent Document 2 discloses a mooring damper device that combines an elastic body that dampens a tensile force applied to a mooring cable by deforming it by compression and a link mechanism that converts the tensile force into a compressive force against the elastic body. Proposed.

JP-A-9-217330 JP-A-9-221734

However, in all of the conventional connecting structures described above, since the connecting structure extends in one direction, when mooring a plurality of ships, there is a problem that a plurality of connecting structures are required individually. was

In addition, in order to cope with multiple directions, if the connecting structure is connected as an annular body of an elastic body itself, it is easy to deform, so the mooring rope moves even with a small initial load, increasing the design load. was difficult.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a connecting structure with improved resistance to tensile force.

In order to achieve the above object, the invention according to claim 1 is a connection structure for connecting objects, comprising: a first connection part connected to one of the objects; and a connecting portion arranged and connected between the first connecting portion and the second connecting portion, wherein the connecting portion is arranged in a direction in which the first connecting portion and the second connecting portion are separated from each other. is on the virtual horizontal plane, the cross-sectional shape on the virtual horizontal plane is longer than the linear distance between the first connection part and the second connection part, and is formed of a flexible material that produces resistance with deformation is.

With this configuration, when a tensile force is applied in a direction in which the first connecting portion and the second connecting portion are separated from each other, the cross section of the connecting portion is deformed so as to approach a linear state.

The invention according to claim 2 is based on the configuration of the invention according to claim 1 , wherein the cross-sectional shape of the connecting part is a polygon having four or more vertices, and the first vertex and the vertices adjacent thereto are excluded. Each of the first connecting portion and the second connecting portion is connected to the second vertex.

With this configuration, when a tensile force is applied in a direction separating the first connecting portion and the second connecting portion, the vertices other than the first vertex and the second vertex are easily deformed.

According to a third aspect of the invention, in the structure of the first aspect of the invention, the connection part is formed by integrating four plate-like bodies so that the cross-sectional shape is a rhombus, and the opposite vertices of the four vertices of the rhombus A first connecting portion and a second connecting portion are arranged on one of the .

By configuring in this way, a symmetrical positional relationship can be achieved between the locations where the tensile force is applied.

According to the invention of claim 4 , in the structure of the invention according to any one of claims 1 to 3 , the connecting part is internally pulled in a direction in which the first connecting part and the second connecting part are separated. It is provided with cushioning means that resists deformation in which the cross section of the connecting portion approaches a straight state when a force is applied.

So configured, the cushioning means resists deformation.

As described above, according to the first aspect of the invention, when a tensile force is applied in the direction in which the first connecting portion and the second connecting portion are separated from each other, the cross section of the connecting portion deforms so as to approach a straight line. The energy of the tensile force is absorbed along with this, and the impact is mitigated.

According to the invention of claim 2 , in addition to the effect of the invention of claim 1 , when a tensile force is applied in the direction in which the first connection part and the second connection part are separated, the first vertex and the second vertex The buffering function of the connection portion is improved because the apex of the joint portion is easily deformed.

In addition to the effects of the first aspect of the invention, the third aspect of the invention improves the stability of the cushioning function of the connecting portion because the locations to which the tensile force is applied can have a symmetrical positional relationship.

According to the invention of claim 4 , in addition to the effects of the invention of any one of claims 1 to 3 , since the cushioning means resists deformation, the cushioning function of the connecting portion is improved.

It is a schematic diagram showing a use state of the connecting structure according to the first embodiment of the present invention. 1 is a schematic diagram showing the structure of a connecting structure according to a first embodiment of the invention; FIG. 3 is a cross-sectional view taken along line III-III shown in FIG. 2; FIG. FIG. 3 is a schematic diagram showing another aspect of the connecting structure shown in FIG. 2, where (1) further comprises a third connecting portion and is used at the location "X" shown in FIG. 1; , (2) further comprises a fourth connector. FIG. 3 is a schematic diagram showing the structure of a connecting structure according to a second embodiment of the invention, corresponding to FIG. 2; FIG. 6 is a schematic diagram showing another aspect of the connecting structure shown in FIG. 5; FIG. 3 is a schematic diagram showing the structure of a connecting structure according to a third embodiment of the invention, corresponding to FIG. 2; FIG. 4 is a schematic diagram showing the structure of a connecting structure according to a fourth embodiment of the invention, corresponding to FIG. 2; FIG. 9 is a schematic diagram showing another aspect of the connecting structure shown in FIG. 8; FIG. 9 is a schematic diagram showing still another aspect of the connecting structure shown in FIG. 8; FIG. 4 is a front view showing another usage state of the connecting structure according to each embodiment of the present invention; FIG. 2 is a schematic diagram showing a state of use of a conventional connecting structure; 13 is a cross-sectional view along line XIII-XIII shown in FIG. 12; FIG.

FIG. 1 is a schematic diagram showing how a connecting structure according to a first embodiment of the present invention is used.

Referring to the figure, a plurality of ships 3a and 3b floating on the ocean 4 as one of the objects are provided with mooring posts 6 fixedly installed on a quay wall 5 as the other of the objects and mooring ropes such as wire ropes. 7a to 7c, the ships 3a and 3b, and the mooring post 6 are simultaneously connected via a connecting structure 1 (connecting structure 9 described later) arranged and connected at an intermediate position. That is, the connection structure 1 that connects the objects is connected at its end to the mooring rope 7a on the mooring post 6 side and to the mooring ropes 7b, 7c on the ships 3a, 3b side.

When a tensile force is applied to the mooring ropes 7a to 7c due to the swaying of the moored ships 3a and 3b, the mooring ropes 7a to 7c are pulled out by the connecting structure 1 having a buffering function to alleviate the tensile force, as will be described later. 7c is prevented from cutting.

Next, the basic configuration of the connecting structure will be described.

FIG. 2 is a schematic diagram showing the structure of the connecting structure according to the first embodiment of the invention, and FIG. 3 is a cross-sectional view taken along line III--III shown in FIG.

With reference to these figures, the connection structure 1 includes a first connecting portion 11 that is a metal annular body, a second connecting portion 12 that is also a metal annular body, and the first connecting portion 11. It is mainly composed of a metallic ring-shaped connecting portion 13 connected to the second connecting portion 12 in a chain shape and an elastic body 14 such as rubber provided on the entire inner circumference 18 of the connecting portion 13 as a cushioning means. It is configured.

The first connecting portion 11 is connected to one of the objects positioned in the direction of the arrow 15a. Also, the second connecting portion 12 is connected to the other of the objects positioned in the direction of the arrow 15b. For example, if it corresponds to the aspect shown in FIG. 1, the first connection part 11 will be connected to the mooring post 6 via the mooring line 7a, and the second connection part 12 will be connected to either of the ships 3a and 3b. It will be connected via either 7b or 7c. Furthermore, the connecting part 13 is made of metal and therefore has an inelasticity that resists deformation. Furthermore, since both the first connecting portion 11 and the second connecting portion 12 are annular bodies, they are movable along the circumferential direction of the connecting portion 13 (inner diameter of the connecting portion 13 where the elastic body 14 is provided).

By configuring in this way, when a tensile force is applied in the direction in which the first connection portion 11 and the second connection portion 12 separate (directions of arrows 15a and 15b), the first connection portion 11, the connection portion 13, and the second connection portion 13 are pulled apart. The connecting portion 12 moves relatively, and shifts to a positional relationship corresponding to the direction of the tensile force (in the case of FIG. 2, these are aligned linearly). The tensile force exerted by the first connection portion 11 and the second connection portion 12 on the connection portion 13 is buffered by the elastic body 14 being compressed and elastically deformed, thereby preventing the mooring cable from being cut.

In addition, since the connecting portion 13 has inelasticity that resists deformation, the connecting structure 1 itself is prevented from being greatly stretched when a small initial tensile force is applied, and the connecting portion 13 is made of an elastic body itself. The design load can be increased compared to the case.

In addition, since the connecting portion 13 has an annular shape, the resistance required to move the first connecting portion 11 and the second connecting portion 12 in the circumferential direction is constant regardless of the position of the connecting portion 13 in the circumferential direction. Therefore, the first connection portion 11 and the second connection portion 12 are easily moved, and usability is improved.

Next, FIG. 4 is a schematic diagram showing another aspect of the connecting structure shown in FIG. (2) further comprises a fourth connecting portion.

First, referring to (1) of FIG. 2, the connecting structure 9 has basically the same configuration as the connecting structure 1 shown in FIG. The third connection portion 16 has basically the same configuration as the first connection portion 11 or the second connection portion 12, and is connected to the ship 3b via the mooring cable 7c as shown in FIG.

As a result, even when a tensile force is applied from the three directions of arrows 15a to 15c, the first connecting portion 11, the connecting portion 13, the second connecting portion 12, and the third connecting portion 16 move relatively, and the tensile force (in the case of (1) in the figure, the first connection portion 11, the second connection portion 12, and the third connection portion 16 are separated from each other by 120° with the connection portion 13 as the center) The elastic body 14 buffers the tensile force.

Further, referring to (2) of the same figure, the connection structure 10 has basically the same configuration as the above-described connection structure 9, and further includes a fourth connection portion 17 (similar to the third connection portion 16). configuration) is added.

As a result, even when the tensile force is applied from the four directions of the arrows 15a to 15d, the connecting structure 10 has a positional relationship corresponding to the direction of the tensile force (in the case of (2) in the figure, the connecting part 13 is the center). , the first connection portion 11, the second connection portion 12, the third connection portion 16, and the fourth connection portion 17 are separated from each other by 90°).

Thus, the connecting structure 1 according to the first embodiment of the present invention can cope with tensile forces acting on the connecting structure 1 in various directions.

Further, since the elastic body 14 is provided on the connecting portion 13 side, in addition to the second connecting portion 12, the connecting portion 13 includes other connecting portions (the third connecting portion 16 and the fourth connecting portion 16 and the fourth connecting portion) where the elastic body 14 is not provided. (including the connecting portion 17) can be easily connected, which is advantageous in terms of cost when other connecting portions are connected to the connecting portion 13 in addition to the second connecting portion 12 .

Next, FIG. 5 is a schematic diagram showing the structure of a connecting structure according to a second embodiment of the invention, corresponding to FIG.

Since the structure of this connecting structure 20 is basically the same as that of the connecting structure 1 according to the first embodiment, the differences will be mainly described below.

With reference to the figure, in the connecting structure 20, elastic bodies 24a and 24b as cushioning means are provided on the half surface of the inner circumference of the first connecting portion 21 on the side of the connecting portion 23 and the second connecting portion 22. It is provided on the half surface of the inner periphery on the connecting portion 23 side.

As a result, similar to the connection structure 1 described above, when the tensile forces 15a and 15b are applied, the tensile force exerted by the first connection portion 21 and the second connection portion 22 on the connection portion 23 is buffered by the elastic bodies 24a and 24b. Therefore, it is possible to cope with tensile forces acting on the connecting structure in various directions.

In addition, since the elastic bodies 24a and 24b are provided on the side of the first connection portion 21 and the second connection portion 22, the connection portion 23 has a plurality of connection portions (the first connection portion 21, the second connection portion 22, etc.). ) are connected, whereas each of the first connection portion 21 and the second connection portion 22 is connected only to the connection portion 23, when the elastic body 24 deteriorates due to continued use after installation, the connection structure Only the first connecting portion 21 or the second connecting portion 22 provided with the deteriorated elastic body 24 can be replaced without disassembling the entire body 20, which facilitates repair and is advantageous in terms of cost.

Next, FIG. 6 is a schematic diagram showing another aspect of the connecting structure shown in FIG.

Since the structure of this connecting structure 25 is basically the same as that of the connecting structure 20 according to the second embodiment, the differences will be mainly described below.

Referring to the figure, in the connecting structure 25, each of the elastic bodies 24a to 24d is provided on the entire inner circumference of the first connecting portion 21, the second connecting portion 22, the third connecting portion 26 and the fourth connecting portion 27. is provided. Therefore, even if these connecting portions are rotated inadvertently, the shock-absorbing function of the connecting structure 25 is prevented from being impaired, and the stability of the connecting structure 25 is improved.

Also, the connecting portion 29 has an elliptical ring shape. As a result, when the first connecting portion 21 and the second connecting portion 22 are connected to the short axis position of the ellipse of the connecting portion 29 as shown in FIG. The amount of energy that can be buffered is greater than in the case of connection in the positional relationship of the fourth connection portion 27). That is, even with the same tensile force, the degree of deformation varies depending on the positions at which the first connecting portion 21 and the second connecting portion 22 are connected in the connecting portion 29, so the responsiveness to the objects to be connected is improved. do. For example, when ships with different weights are targeted, it is possible to change the connection position according to the weight.

Next, FIG. 7 is a schematic diagram showing the structure of a connecting structure according to a third embodiment of the invention, corresponding to FIG.

The structure of this connecting structure 30 is basically the same as that of the connecting structure 10 according to the first embodiment.

Referring to the figure, a first connecting portion 31 connected to one of the objects (corresponding to the mooring pole 6 shown in FIG. 1) and other objects (ships 3a, 3b etc. shown in FIG. 1) corresponding), three other connection portions (second connection portion 32, third connection portion 36 and fourth connection portion 37), and first connection portion 31, second connection portion 32 and third connection portion 36 and the connecting portion 33 connected to each of the fourth connecting portions 37 in a chain shape, and each of the first connecting portion 31, the second connecting portion 32, the third connecting portion 36 and the fourth connecting portion 37 and the connecting portion 33 An elastic body in which a part of each of the connecting part 33 and the first connecting part 31, the second connecting part 32, the third connecting part 36 and the fourth connecting part 37 is embedded with spaces 38a to 38d provided between 34.

With this configuration, when a tensile force is applied in the direction in which the first connecting portion 31 and each of the other connecting portions 32, 36, and 37 separate (directions indicated by arrows 15a to 15d in the figure), the space 38a is mainly displaced. ∼38d is compressed and elastically deformed to buffer the tensile force, so that a plurality of objects can be connected at the same time. In addition, since the positional relationship of the first connecting portion 31, the other connecting portions 32, 36, 37, and the connecting portion 33 is fixed by the elastic body 34 and the whole is protected, the durability of the connecting portion 33 is improved.

Next, FIG. 8 is a schematic diagram showing the structure of a connecting structure according to a fourth embodiment of the invention, corresponding to FIG.

This connecting structure 40 is used in the same situation as the connecting structure 1 according to the first embodiment.

Referring to the figure, a connecting structure 40 is formed by combining four plate-like bodies 42a to 42d so as to have a rhombic cross-sectional shape, and fixing the ends of adjacent plate-like bodies 42a to 42d to each other with fasteners 43a to 43d. and locking portions 46 a to 46 d formed at the four apexes of the rhombus of the connecting portion 45 .

In the figure, the locking portion 46a corresponds to the first connecting portion, and the locking portion 46b at the vertex position (opposite vertex position) not adjacent to the locking portion 46a corresponds to the second connecting portion. Therefore, the connecting portion 45 arranged and connected between the first connecting portion (locking portion 46a) and the second connecting portion (locking portion 46b) has a rhombic cross-sectional shape, and the first connecting portion and the second connecting portion It is configured to be longer than the linear distance to the connecting portion.

The plate-like members 42a to 42d forming the connecting portion 45 are made of a flexible material that generates resistance as it deforms.

Therefore, as indicated by arrows 15a and 15b in FIG. Since the cross section is deformed so as to approach a straight state, the energy of the tensile force is absorbed along with the deformation, and the impact is mitigated.

Furthermore, since the cross-sectional shape of the connecting portion 45 is a rhombus, the positions to which the tensile force is applied can be made symmetrical, so that the stability of the cushioning function of the connecting portion 45 is improved.

Next, FIG. 9 is a schematic diagram showing another aspect of the connecting structure shown in FIG.

Since the structure of this connecting structure 41 is basically the same as that of the connecting structure 40 according to the fourth embodiment, differences will be mainly described below. The depiction of the fixtures 43a-43d and locking portions 46a-46d shown in FIG. 8 will not be repeated.

Referring to the figure, when a tensile force is applied to the inside of the connecting portion 45 in the direction in which the first connecting portion and the second connecting portion separate (directions indicated by arrows 15a and 15b in the same figure), The connecting portion 45 has an elastic body 48 as a cushioning means that generates resistance against deformation (directions indicated by arrows 50a and 50b in the figure) in which the cross section of the connecting portion 45 approaches a linear state. The elastic body 48 is filled inside the connecting portion 45 except for an opening 49 provided in consideration of cost.

As a result, the elastic body 48 as a cushioning means resists deformation, so that the cushioning function of the connecting portion 45 is improved.

Next, FIG. 10 is a schematic diagram showing still another aspect of the connecting structure shown in FIG.

Since the structure of this connecting structure 51 is basically the same as that of the connecting structure 41 according to the fourth embodiment, the differences will be mainly described below.

Referring to the figure, a spring 52 is provided as a cushioning means so as to connect the facing apexes of the rhombus of the connecting portion 45 . The spring 52 has the same effect as the elastic body 48 in the connecting structure 41 described above.

As described above, the connecting structure of the present invention can withstand tensile forces acting on the connecting structure in various directions, and has improved responsiveness to tensile forces. Therefore, it can be suitably used when simultaneously mooring a plurality of ships, floating structures, floating fenders, etc. as shown in FIG. In addition, it can also be suitably used in protective fences against avalanches, falling rocks, etc., at erosion control dams, etc., as described below.

FIG. 11 is a front view showing another state of use of the connecting structure according to each embodiment of the present invention.

With reference to the figure, a protective fence 56 against avalanches, falling rocks, etc. is installed in slits 57 provided in the upstream slopes 58a and 58b of the erosion control dam 55 in the vertical direction (vertical direction when viewed from the front). In the protection fence 56 , fixed base materials 59 a and 59 b are attached to the upstream slopes 58 a and 58 b along the slit portion 57 . In addition, a plurality of horizontal members 61 of a cable body such as horizontal rope members are arranged at predetermined intervals in the vertical direction so as to straddle the slit portion 57 in the horizontal direction. 59b using connecting structures 60a and 60c. Further, a plurality of vertical members 62 are arranged at predetermined intervals in the horizontal direction so as to intersect with the plurality of horizontal members 61 and serve as columns extending vertically. 62 are connected using a connecting structure 60b.

Since each of the connecting structures 60a to 60c is a connecting structure according to the above-described embodiments of the present invention, the crossing horizontal member 61 and vertical member 62 can be connected at the same time, and the design load can be increased. Therefore, the impact when an avalanche, falling rocks, debris flow, or the like collides with the protective fence 56 can be effectively mitigated.

In each of the above embodiments, the first connecting portion, the second connecting portion, the other connecting portion, and the connecting portion are made of specific materials and have specific shapes. can be Also, other shapes may be used.

In each of the above-described embodiments, the cushioning means is an elastic body such as rubber or a spring. Any other material may be used as long as it has a buffering function for buffering the tensile force exerted on the connecting part by the part and the second connecting part.

Furthermore, in each of the above-described embodiments, the connection structure is used in the mooring of the ship on the sea or in the protection fence of the erosion control dam, but the place of use is not limited to these.

Furthermore, in the above-described first embodiment, the elastic body is provided on the entire inner circumference of the connecting portion. It suffices that at least the surface with which the second connecting portion contacts is included.

Furthermore, in each of the above embodiments, the connection portion and the object are connected via the mooring rope, but they may be connected by means other than the mooring rope, or they may be directly connected. Also good.

Furthermore, in the above-described first to third embodiments, there was a mode in which another connecting portion was added in addition to the first connecting portion and the second connecting portion. If a connection exists, it is included in the present invention. Also, the number of other connection portions is not limited.

Furthermore, in the above-described first and second embodiments, the first connecting portion, the second connecting portion and other connecting portions are movable along the circumferential direction of the connecting portion. It suffices if it is movable within a range necessary for handling the above. For example, in the embodiment shown in (1) of FIG. 4 , for the purpose of preventing the second connection portion and the third connection portion from entangling each other, the inside of the connection portion is configured to limit the movable range of each. Inwardly protruding portions may be formed on the peripheral surface at intervals of 120° in the peripheral direction.

Furthermore, in the above-described first and second embodiments, the first connecting portion, the second connecting portion, and other connecting portions are movable along the circumferential direction of the connecting portion. A fixed connection position is also substantially included in the concept of the invention because the positional relationship between these connection portions moves relatively.

Furthermore, in the above-described first and second embodiments, one of the connecting portion or the first connecting portion and the second connecting portion is provided with the buffering means. A cushioning means may be provided.

Furthermore, in each of the above-described embodiments, each connecting portion, connecting portion and locking portion are simply ring-shaped, but they may be stud-linked.

Furthermore, in each of the above-described embodiments, the connecting portion has an annular or elliptical ring shape, but it does not have to be an annular or elliptical ring as long as it is annular. Also, in the third and fourth embodiments, the connecting portion need not be annular.

Furthermore, in the above-described second embodiment, the elastic bodies are provided at specific locations of the first connecting portion and the second connecting portion, but it is sufficient that they are provided at least partially.

Furthermore, in the above-described third embodiment, there are three other connecting portions, but the number can be appropriately changed according to the intended use, and at least two are sufficient. In the case where there are three or more other connection parts, it is included in the present invention as long as there are constituent elements corresponding to the second connection part and the third connection part.

Furthermore, in each of the embodiments described above, there is one connecting portion, but a plurality of connecting portions may be used.

Furthermore, in the above-described fourth embodiment, the locking portions are the first connecting portion and the second connecting portion and have specific shapes, but they may have other shapes.

Furthermore, in the above-described fourth embodiment, the elastic body is filled inside the connecting portion, but it is sufficient that it is filled at least inside the connecting portion. It's okay to be there.

Furthermore, in the above-described fourth embodiment, the position of one of the paired vertices of the locking portion is the first connection portion and the second connection portion, but the other position of the pair of vertices is the first connection portion and the second connection portion. It is good also as a 2 connection part. Also, all the engaging portions may be the first to fourth connecting portions.

Furthermore, in the above-described fourth embodiment, the connecting portion has a specific shape, but the connecting portion is arranged and connected between the first connecting portion and the second connecting portion, and has a cross-sectional shape of the first connecting portion. Any material may be used as long as it is longer than the linear distance between the connecting portion and the second connecting portion and is formed of a flexible material that generates resistance as it deforms. Moreover, it is not necessary to integrate four plate-like bodies.

At this time, the connecting portion is a polygon having a cross-sectional shape of four or more vertices, and the first connecting portion and the second connecting portion are connected to the first vertex and the second vertex excluding the adjacent vertex. are preferably connected to each other as another aspect.

When configured in this manner, when a tensile force is applied in the direction in which the first connecting portion and the second connecting portion separate, the vertices other than the first vertex and the second vertex are likely to be deformed. Improve functionality.

Furthermore, in the above-described fourth embodiment, the plate-like body (made of a flexible material that generates resistance with deformation, such as metal or synthetic resin) is exposed and used. However, in order to increase wear resistance and corrosion resistance, the plate-like body may be coated with rubber.

DESCRIPTION OF SYMBOLS 1, 9, 10, 20, 25, 30, 40, 41, 51, 60... Connection structure 3... Ship 6... Mooring post 11, 21, 31... 1st connection part 12, 22, 32... 2nd connection part 13, 23, 29, 33, 45... Connecting portion 14, 24, 34, 48... Elastic body 16, 26, 36... Third connecting part 17, 27, 37... Fourth connecting part 18, 28... Inner circumference 38... Space 42 Plate-like body 46 Engagement portion 52 Spring 59 Fixed base material 61 Horizontal member 62 Vertical member In each drawing, the same reference numerals indicate the same or corresponding parts.

Claims (4)

A connection structure for connecting objects,
a first connecting portion connected to one of the objects;
a second connecting portion connected to the other of the objects;
a connecting portion arranged and connected between the first connecting portion and the second connecting portion;
The connecting portion has a cross-sectional shape on the imaginary horizontal plane that is a straight line between the first connecting portion and the second connecting portion when the direction in which the first connecting portion and the second connecting portion separate is on the imaginary horizontal plane. A connecting structure that is longer than the distance and formed of a flexible material that produces resistance as it deforms. The connecting portion has a polygonal cross-sectional shape with four or more vertices, and the first connecting portion and the second connecting portion are connected to the first vertex and the second vertex excluding the adjacent vertex. 2. The linked structure of claim 1, wherein each of the sections are connected. The connecting portion is formed by integrating four plate-like bodies so that the cross-sectional shape is a rhombus, and the first connecting portion and the second connecting portion are provided at one of the four vertices of the rhombus, one of the opposite vertices. 3. The linked structure of claim 1, disposed. The connecting portion resists deformation in which the cross section of the connecting portion approaches a linear state when a tensile force is applied to the inside thereof in a direction in which the first connecting portion and the second connecting portion are separated. 4. Linked structure according to any one of claims 1 to 3, comprising a resulting damping means.

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