JP7033769B2 - Connected structure - Google Patents

Description

The present invention relates to a connecting structure, and more particularly to a connecting structure used for a purpose of connecting a quay or the like and a ship or the like, or a purpose of connecting a horizontal rope material and a support in a guard fence.

FIG. 12 is a schematic view showing a usage state of the conventional connected structure.

With reference to the figure, each of the plurality of vessels 83a to 83c floating on the ocean 84 has each of the plurality of mooring columns 86a to 86c fixedly installed on the quay 85 at predetermined intervals, and mooring ropes 87a such as wire ropes. It is connected via each of ~ 87c and each of the connecting structures 81a to 81c arranged and connected at an intermediate position thereof.

Each of the vessels 83a to 83c moored in this way may be greatly shaken by strong winds, rough waves, etc., and at that time, a large tensile force is applied to each of the mooring lines 87a to 87c. At this time, as will be described later, each of the connecting structures 81a to 81c has a buffering function for relaxing the tensile force, thereby preventing the mooring lines 87a to 87c from being cut.

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

FIG. 13 is a cross-sectional view of the XIII-XIII line shown in FIG.

With reference to FIGS. 12 and 13, the connecting structure 81a has a substantially columnar appearance and is connected to the mooring line 87a on the mooring column 86a side and the mooring line 87a on the ship 83a side at both ends. .. 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 so that adjacent rings 88 do not come into direct contact with each other. It is composed of.

As a result, when a tensile force (tensile force applied in the directions of arrows 82a and 82b) is applied to the mooring line 87a due to the shaking of the vessel 83a shown in FIG. 12, the space 90a to 90d mainly between the rings 88a and 88e is formed. The filled elastic body 89 is compressed by the tensile force and elastically deformed, whereby the entire connecting structure 81a is deformed so as to extend, so that the tensile force applied to the mooring line 87a is buffered and the mooring line 87a is cut. Is prevented.

As another aspect of the connecting structure, Patent Document 1 describes a mooring in which an elastic body that twists and deforms and cushions a tensile force applied to a mooring line and a link mechanism that converts the tensile force into a torsional force with respect to the elastic body are combined. Damper devices for use have been proposed.

Further, Patent Document 2 describes a mooring damper device that combines an elastic body that cushions a tensile force applied to a mooring rope by deforming it by compression and a link mechanism that converts the tensile force into a compressive force with respect to the elastic body. Proposed.

Japanese Unexamined Patent Publication No. 9-217330 Japanese Unexamined Patent Publication No. 9-221734

However, since all of the above-mentioned conventional connecting structures extend in one direction, there is a problem that a plurality of connecting structures are individually required when mooring a plurality of ships. Was there.

In addition, in order to support multiple directions, when the connecting structure is connected as an annular body of the elastic body itself, the mooring line moves even with a small initial load because it is easily deformed, and the design load is increased. Was difficult.

The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a connected structure having improved compatibility with tensile force.

In order to achieve the above object, the invention according to claim 1 is a connecting structure for connecting objects to each other, and has an annular first connecting portion connected to one of the objects and the object. A second annular portion connected to the other of the two, a connecting portion which is a single annular body connected to the first connecting portion and the second connecting portion in a chain shape, and a first connecting portion and a second connection. The first connecting portion and the second connecting portion are provided with a cushioning means for cushioning the tensile force exerted by the first connecting portion and the second connecting portion on the connecting portion when the tensile force is applied in the direction away from the portions. It is movable along the circumferential direction of the connecting portion, and the cushioning means includes an elastic body provided on the entire inner circumference of the connecting portion or the first connecting portion and the second connecting portion .

With this configuration, when a tensile force is applied in the direction in which the first connection portion and the second connection portion are separated from each other, the first connection portion, the connection portion, and the second connection portion move relatively to correspond to the direction of the tensile force. As well as shifting to the positional relationship, the tensile force is buffered. Further, in addition to the second connecting portion, it becomes easy to connect the connecting portion to another connecting portion that is not provided with an elastic body. Further, while a plurality of connecting portions are connected to the connecting portion, each of the first connecting portion and the second connecting portion is connected only to the connecting portion, so that when the elastic body as a cushioning means deteriorates with time. Will be easier to repair.

The invention according to claim 2 has a connecting portion in an annular shape in the configuration of the invention according to claim 1 .

With this configuration, the resistance required for the movement of the first connecting portion and the second connecting portion in the circumferential direction is constant regardless of the position in the circumferential direction of the connecting portion.

The invention according to claim 3 has an elliptical ring-shaped connecting portion in the configuration of the invention according to claim 1 .

With this configuration, the degree of deformation will differ depending on the position where the first connecting portion and the second connecting portion are connected in the connecting portion, even with the same tensile force.

The invention according to claim 4 is the connecting structure according to claim 1 for further connecting another object , further comprising a third connecting portion connected to the other object, and the connecting portion is a connecting portion. It is connected in a chain to each of the first connection portion, the second connection portion and the third connection portion, and the elastic body is connected between each of the first connection portion, the second connection portion and the third connection portion and the connection portion. At least the connecting portion is buried with a space provided.

With this configuration, when a tensile force is applied in a direction in which the first connection portion, the second connection portion, and the third connection portion are separated from each other, the elastic body cushions the tensile force. Further, the positional relationship between the first connecting portion, the second connecting portion, the third connecting portion and the connecting portion is fixed by the elastic body.

As described above, in the invention according to claim 1, 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 first connecting portion, the connecting portion and the second connecting portion are relatively. Since it moves and shifts to a positional relationship corresponding to the direction of the tensile force and cushions the tensile force, it can respond to the tensile force in various directions acting on the connected structure and increases the load at the time of initial deformation. can do. Further, since it is easy to connect the second connection portion to another connection portion not provided with the elastic body in addition to the second connection portion, the other connection portion is connected to the connection portion in addition to the second connection portion. In some cases, it is advantageous in terms of cost. Further, while a plurality of connecting portions are connected to the connecting portion, each of the first connecting portion and the second connecting portion is connected only to the connecting portion, so that when the elastic body as a cushioning means deteriorates with time. It is advantageous in terms of cost because it is easy to repair.

The invention according to claim 2 , in addition to the effect of the invention according to claim 1 , is a resistance required for the movement of the first connecting portion and the second connecting portion in the circumferential direction at any position in the circumferential direction of the connecting portion. Is constant, so that the first connection portion and the second connection portion can be easily moved, and the usability is improved.

The invention according to claim 3 has, in addition to the effect of the invention according to claim 1 , that the degree of deformation differs depending on the connecting positions of the first connecting portion and the second connecting portion in the connecting portion even with the same tensile force. Therefore, the compatibility with the object to be connected is improved.

According to the fourth aspect of the present invention, when a tensile force is applied in a direction in which the first connection portion, the second connection portion, and the third connection portion are separated from each other, the elastic body cushions the tensile force, and thus a plurality of objects are subject to the invention. Can be connected at the same time. Further, since the positional relationship between the first connecting portion, the second connecting portion, the third connecting portion and the connecting portion is fixed by the elastic body, the durability of the connecting portion is improved.

It is a schematic diagram which shows the use state of the connection structure by 1st Embodiment of this invention. It is a schematic diagram which shows the structure of the connection structure by 1st Embodiment of this invention. It is sectional drawing of the III-III line shown in FIG. FIG. 2 is a schematic view showing another aspect of the connecting structure shown in FIG. 2, wherein (1) further includes a third connecting portion and is used at the “X” location shown in FIG. , (2) further include a fourth connection portion. It is a schematic diagram which shows the structure of the connection structure by the 2nd Embodiment of this invention, and corresponds to FIG. It is a schematic diagram which shows the other aspect of the connection structure shown in FIG. It is a schematic diagram which shows the structure of the connection structure by the 3rd Embodiment of this invention, and corresponds to FIG. It is a schematic diagram which shows the structure of the connection structure by 4th Embodiment of this invention, and corresponds to FIG. It is a schematic diagram which shows the other aspect of the connection structure shown in FIG. It is a schematic diagram which shows still another aspect of the connection structure shown in FIG. It is a front view which shows the other use state of the connection structure by each embodiment of this invention. It is a schematic diagram which shows the use state of the conventional connection structure. It is sectional drawing of the XIII-XIII line shown in FIG.

FIG. 1 is a schematic view showing a usage state of a connected structure according to the first embodiment of the present invention.

With reference to the figure, a plurality of vessels 3a and 3b floating on the ocean 4 as one of the objects have a bollard 6 fixedly installed on the quay 5 as the other object and a mooring rope such as a wire rope. 7a to 7c and ships 3a and 3b are simultaneously connected via a connecting structure 1 (connecting structure 9 described later) arranged and connected at an intermediate position between the mooring column 6. That is, the connecting structure 1 that connects the objects to each other is connected to the mooring line 7a on the mooring column 6 side and is connected to the mooring lines 7b and 7c on the ship 3a and 3b side at the end thereof.

When a tensile force is applied to the mooring lines 7a to 7c due to the shaking of the moored vessels 3a and 3b, the connecting structure 1 has a buffering function to relax the tensile force as described later, whereby the mooring lines 7a to 7a to It prevents 7c from cutting.

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

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

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

The first connecting portion 11 is connected to one of the objects located in the direction of the arrow 15a. Further, the second connecting portion 12 is connected to the other side of the object located in the direction of the arrow 15b. For example, according to the embodiment shown in FIG. 1, the first connecting portion 11 is connected to the mooring column 6 via the mooring line 7a, and the second connecting part 12 is connected to any of the ships 3a and 3b. It will be connected via either 7b or 7c. Further, since the connecting portion 13 is made of metal, it has inelasticity to resist deformation. Further, since both the first connecting portion 11 and the second connecting portion 12 are annular bodies, they can move along the circumferential direction of the connecting portion 13 (inner diameter of the connecting portion 13 provided with the elastic body 14).

With this configuration, when a tensile force is applied in the direction in which the first connecting portion 11 and the second connecting portion 12 are separated (directions of arrows 15a and 15b), the first connecting portion 11, the connecting portion 13, and the second 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 arranged in a straight line). Then, the tensile force exerted by the first connecting portion 11 and the second connecting portion 12 on the connecting portion 13 is buffered by the elastic body 14 being compressed and elastically deformed, so that the mooring cord is prevented from being cut.

Further, since the connecting portion 13 has inelasticity that resists deformation, it prevents the connecting structure 1 itself 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.

Further, since the connecting portion 13 is annular, the resistance required for the movement of the first connecting portion 11 and the second connecting portion 12 in the circumferential direction is constant regardless of the position in the circumferential direction of the connecting portion 13. Therefore, the first connection portion 11 and the second connection portion 12 are easy to move, and the usability is improved.

Next, FIG. 4 is a schematic view showing another aspect of the connecting structure shown in FIG. 2, and FIG. 4 (1) further includes a third connecting portion, where “X” is shown in FIG. (2) is further provided with a fourth connection portion.

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

As a result, even when the tensile force is applied from the three directions of the 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 is applied. (In the case of (1) in the figure, the first connecting portion 11, the second connecting portion 12, and the third connecting portion 16 are separated from each other by 120 ° with the connecting portion 13 as the center). The transition is made and the tensile force is buffered by the elastic body 14.

Further, referring to (2) in the figure, the connecting structure 10 has basically the same configuration as the above-mentioned connecting structure 9, and further has the same structure as the fourth connecting portion 17 (the same as the third connecting portion 16). Configuration) is added.

As a result, the connecting structure 10 is centered on the connecting portion 13 in the positional relationship corresponding to the direction of the tensile force even when the tensile force is applied from the four directions of the arrows 15a to 15d (in the case of (2) in the figure). It is possible to shift to a state in which 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 °).

As described above, the connecting structure 1 according to the first embodiment of the present invention can cope with the tensile force in various directions acting on the connecting structure 1.

Further, since the elastic body 14 is provided on the connecting portion 13 side, the connecting portion 13 is provided with another connecting portion (third connecting portion 16 or fourth) in which the elastic body 14 is not provided in addition to the second connecting portion 12. Since it becomes easy to connect the connecting portion 17), it is advantageous in terms of cost when another connecting portion is connected to the connecting portion 13 in addition to the second connecting portion 12.

Next, FIG. 5 is a schematic view showing the structure of the connected structure according to the second embodiment of the present invention, and corresponds to FIG. 2.

Since the structure of the 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, the elastic bodies 24a and 24b as cushioning means are the half surface of the inner circumference of the first connecting portion 21 on the connecting portion 23 side and the second connecting portion 22. It is provided on the half surface of the inner circumference on the connecting portion 23 side.

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

Further, since the elastic bodies 24a and 24b are provided on the first connection portion 21 and the second connection portion 22 side, a plurality of connection portions (first connection portion 21, second connection portion 22 and the like) are provided in the connection portion 23. ) Is connected, whereas each of the first connecting portion 21 and the second connecting portion 22 is connected only to the connecting portion 23. Therefore, when the elastic body 24 continues to be used after installation, the connecting structure is deteriorated. It is only necessary to replace the first connection portion 21 or the second connection portion 22 provided with the deteriorated elastic body 24 without disassembling the entire body 20, and the repair becomes easy, which is advantageous in terms of cost.

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

Since the structure of the 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.

With reference to the figure, in the connecting structure 25, each of the elastic bodies 24a to 24d covers 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. It is provided. Therefore, even if a situation occurs in which these connecting portions are inadvertently rotated, it is possible to prevent the buffering function of the connecting structure 25 from being impaired, and the stability of the connecting structure 25 is improved.

Further, the connecting portion 29 is an elliptical ring. As a result, when the first connecting portion 21 and the second connecting portion 22 are connected to the elliptical short axis position of the connecting portion 29 as shown in the figure, the long axis position (the third connecting portion 26 and the third connecting portion 26 in the figure). The energy that can be buffered is larger than that in the case of being connected to the fourth connecting portion 27). That is, the degree of deformation differs depending on the connecting positions of the first connecting portion 21 and the second connecting portion 22 in the connecting portion 29 even with the same tensile force, so that the compatibility with the object to be connected is improved. do. For example, when a ship having a different weight is targeted, it is possible to change the connection position according to the weight.

Next, FIG. 7 is a schematic view showing the structure of the connected structure according to the third embodiment of the present invention, and corresponds to FIG. 2.

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

With reference to the figure, the first connecting portion 31 connected to one of the objects (corresponding to the mooring column 6 shown in FIG. 1) and the other objects (ships 3a, 3b, etc. shown in FIG. 1) (Correspondence), three other connection parts (second connection part 32, third connection part 36 and fourth connection part 37), first connection part 31, second connection part 32, third connection part 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 portion 33, the first connecting portion 31, the second connecting portion 32, the third connecting portion 36, and the fourth connecting portion 37 is embedded with the spaces 38a to 38d provided between the two. It is mainly composed of 34.

With this configuration, when a tensile force is applied in the direction in which the first connecting portion 31 and the other connecting portions 32, 36, 37 are separated from each other (directions indicated by arrows 15a to 15d in the figure), the space 38a is mainly used. Since the elastic body 34 filled in ~ 38d is compressed and elastically deformed to buffer the tensile force, it is possible to connect a plurality of objects at the same time. Further, since the positional relationship between 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 protected as a whole, the durability of the connecting portion 33 is improved.

Next, FIG. 8 is a schematic view showing the structure of the connected structure according to the fourth embodiment of the present invention, and corresponds to FIG. 2.

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

With reference to the figure, in the connecting structure 40, four plate-shaped bodies 42a to 42d are combined so that the cross-sectional shape becomes a rhombus, and the ends of the adjacent plate-shaped bodies 42a to 42d are fixed to each other by the fixtures 43a to 43d. It is mainly composed of a connecting portion 45 which is integrated by being fixed by the above, and locking portions 46a to 46d formed at four apex positions of the rhombus of the connecting portion 45.

In the case of the figure, the locking portion 46a corresponds to the first connecting portion, and the locking portion 46b at the apex position (position opposite to the apex) 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 are second. It is configured to be longer than the straight line distance to the connection part.

Further, the plate-shaped bodies 42a to 42d constituting the connecting portion 45 are made of a flexible material that causes resistance due to deformation.

Therefore, as shown by arrows 15a and 15b in the figure, when a tensile force is applied in the direction in which the first connecting portion (locking portion 46a) and the second connecting portion (locking portion 46b) are separated from each other, the connecting portion 45 Since the cross section is deformed so as to approach a linear state, the energy of the tensile force is absorbed with the deformation, and the impact is alleviated.

Further, since the cross-sectional shape of the connecting portion 45 is a rhombus, the locations where the tensile force is applied can have a symmetrical positional relationship, so that the stability of the cushioning function of the connecting portion 45 is improved.

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

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

With reference 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 are separated (directions indicated by arrows 15a and 15b in the same figure). An elastic body 48 is provided as a cushioning means that causes resistance to 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 inward of the connecting portion 45 except for the opening 49 portion provided in consideration of cost.

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

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

Since the structure of the 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.

With reference to the figure, a spring 52 as a cushioning means is provided so as to connect the opposing vertices of the rhombus of the connecting portion 45. The spring 52 has the same effect as the elastic body 48 in the above-mentioned connecting structure 41.

As described above, the connecting structure of the present invention can cope with the tensile force in various directions acting on the connecting structure, and the correspondence to the tensile force is improved. Therefore, it can be suitably used in a situation where a plurality of ships, floating structures, floating fenders and the like as shown in FIG. 1 are moored at the same time. Further, it can also be suitably used as a guard fence against avalanches, falling rocks, etc. in a sabo dam or the like as described below.

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

With reference to the figure, a guard fence 56 against avalanches, falling rocks, etc. is installed in the slit portion 57 provided in the vertical direction (vertical direction in the front view) on the slopes 58a and 58b on the upstream side of the sabo dam 55. In the guard fence 56, fixed base materials 59a and 59b are attached to each of the upstream slopes 58a and 58b so as to be along the slit portion 57. Further, a plurality of cross members 61 of a cord such as a horizontal rope material are arranged at predetermined intervals in the vertical direction so as to straddle the slit portion 57 in the horizontal direction, and both ends of each of the plurality of cross members 61 are fixed base materials 59a. It is connected to 59b using the connecting structures 60a and 60c. Further, a plurality of vertical members 62 as columns extending in the vertical direction so as to intersect the plurality of horizontal members 61 are arranged at predetermined intervals in the horizontal direction, and the horizontal members 61 and the vertical members are arranged at intermediate positions of the plurality of horizontal members 61. 62 is connected using the connecting structure 60b.

Since each of the connecting structures 60a to 60c is a connecting structure according to each embodiment of the present invention described above, the intersecting cross members 61 and the vertical members 62 can be connected at the same time, and the design load can be increased. Therefore, it is possible to effectively mitigate the impact when an avalanche, a rockfall, a debris flow, or the like collides with the protective fence 56.

In each of the above embodiments, the first connection portion, the second connection portion, the other connection portion, and the connection portion have a specific shape made of a specific material, but they are made of another material. May be. Further, it may have another shape.

Further, in each of the above embodiments, the cushioning means is an elastic body such as rubber or a spring, but when a tensile force is applied in the direction in which the first connection portion and the second connection portion are separated from each other, the first connection is made. Others may be used as long as they have a cushioning function for cushioning the tensile force exerted on the connecting portion by the portion and the second connecting portion.

Further, in each of the above embodiments, the connecting structure is used in the scene where the ship is moored at sea or in the guard fence of the sabo dam, but the place of use is not limited to these.

Further, in the above-mentioned first embodiment, the elastic body is provided on the entire inner circumference of the connecting portion, but the inner circumference is the first connecting portion and the first connecting portion in the connecting portion when the above-mentioned tensile force is applied. It suffices to include at least the surface with which the second connection portion comes into contact.

Further, in each of the above-described embodiments, the connection portion and the object are connected via a mooring line, but these may be connected by means other than the mooring line, or may be directly connected. Is also good.

Further, in the above-mentioned first to third embodiments, there is an embodiment in which another connection portion is added in addition to the first connection portion and the second connection portion, but the first connection portion and the second connection portion are added. If a connecting portion is present, it is included in the present invention. Further, the number of other connection portions is not limited.

Further, in the first and second embodiments described above, the first connection portion, the second connection portion and the other connection portions are movable along the circumferential direction of the connection portion, but these are due to tensile force. It suffices if it can be moved within the range necessary for the correspondence. For example, in the embodiment shown in FIG. 4 (1), in the connecting portion so as to limit the movable range of each for the purpose of preventing the second connecting portion and the third connecting portion from being entangled with each other. A convex portion may be formed on the peripheral surface so as to project inward at every 120 ° in the circumferential direction.

Further, in the first and second embodiments described above, the first connection portion, the second connection portion and the other connection portions are movable along the circumferential direction of the connection portion, but for example, the first connection portion. Those having a fixed connection position are also substantially included in the concept of the invention because the positional relationship of these connection portions moves relatively.

Further, in the above-mentioned first and second embodiments, the cushioning means is provided in either the connecting portion or the first connecting portion and the second connecting portion, but all of the connecting portion and each connecting portion are provided with the cushioning means. A buffering means may be provided.

Further, in each of the above embodiments, the connecting portion, the connecting portion and the locking portion are merely annular, but may be in the shape of a stud link.

Further, in each of the above embodiments, the connecting portion is annular or elliptical, but if it is annular, it does not have to be annular or elliptical. Further, in the third and fourth embodiments, the connecting portion does not have to be annular.

Further, in the above-mentioned second embodiment, the elastic body is provided at a specific position of the first connecting portion and the second connecting portion, but it may be provided at least partially.

Further, in the above-mentioned third embodiment, there are three other connection portions, but the number can be appropriately changed according to the intended use, and at least two may be sufficient. When three or more other connecting portions are present, the present invention includes the second connecting portion and the components corresponding to the third connecting portion if they are present.

Further, in each of the above embodiments, the number of connecting portions is one, but a plurality of connecting portions may be used.

Further, in the above-mentioned fourth embodiment, the locking portions are the first connecting portion and the second connecting portion and have a specific shape, but other shapes may be used.

Further, in the fourth embodiment described above, the elastic body is filled in the inner part of the connecting portion, but it suffices if it is filled in at least the inner side of the connecting portion. For example, the connecting portion is embedded in the elastic body. You may have.

Further, in the above-mentioned fourth embodiment, the position of one of the paired vertices of the locking portion is set as the first connecting portion and the second connecting portion, but the other position of the paired vertex is set as the first connecting portion and the second connecting portion. 2 It may be a connection part. Further, all the locking portions may be used as the first to fourth connecting portions.

Further, in the fourth embodiment described above, 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 the cross-sectional shape is the first. 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 made of a flexible material that causes resistance due to deformation. Further, the four plate-shaped bodies do not have to be integrated.

At this time, the connecting portion is a polygon having a cross-sectional shape having 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 vertex adjacent thereto. It is also preferable that each of the above is connected as another embodiment.

In this configuration, when a tensile force is applied in the direction in which the first connection portion and the second connection portion are separated from each other, the joint portion is easily deformed at the vertices other than the first vertex and the second vertex, so that the coupling portion is buffered. Function is improved.

Further, in the above-mentioned fourth embodiment, a plate-like body (made of a flexible material that causes resistance with deformation, for example, made of metal or synthetic resin) is exposed and used. However, in order to improve wear resistance and corrosion resistance, the plate-shaped body may be coated with rubber.

1, 9, 10, 20, 25, 30, 40, 41, 51, 60 ... Connecting structure 3 ... Ship 6 ... Bollard 11, 21, 31 ... First connection part 12, 22, 32 ... Second connection part 13, 23, 29, 33, 45 ... Connecting parts 14, 24, 34, 48 ... Elastic bodies 16, 26, 36 ... Third connecting parts 17, 27, 37 ... Fourth connecting parts 18, 28 ... Inner circumference 38 ... Space 42 ... Plate-like body 46 ... Locking part 52 ... Spring 59 ... Fixed base material 61 ... Horizontal material 62 ... Vertical material The same reference numerals in each figure indicate the same or corresponding parts.

Claims (4)

It is a connecting structure for connecting objects to each other.
An annular first connection portion connected to one of the objects,
An annular second connection connected to the other side of the object,
A connecting portion which is a single annular body connected to the first connecting portion and the second connecting portion in a chain shape,
A cushioning means for cushioning the tensile force exerted by the first connecting portion and the second connecting portion on the connecting portion 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. Prepare,
The first connection portion and the second connection portion are movable along the circumferential direction of the connection portion, and are movable.
The buffering means is a connecting structure including an elastic body provided on the entire inner circumference of the connecting portion or the first connecting portion and the second connecting portion . The connecting structure according to claim 1 , wherein the connecting portion is annular. The connecting structure according to claim 1 , wherein the connecting portion is an elliptical ring. The connecting structure according to claim 1 for connecting other objects .
Further provided with a third connection to be connected to the other object .
The connecting portion is connected to each of the first connecting portion, the second connecting portion, and the third connecting portion in a chain shape.
The elastic body is a connecting structure in which at least the connecting portion is embedded with a space provided between each of the first connecting portion, the second connecting portion, and the third connecting portion and the connecting portion. ..

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