JP4227001B2 - Barge connection body, barge connection structure and barge connection ship - Google Patents

Description

  The present invention relates to a barge connecting body for connecting a barge and a self-propelled ship, a barge connecting structure using the connecting body, and a barge connecting ship connected by the barge connecting structure.

  Conventionally, barges that do not have propulsion means can be detachably connected to self-propelled ships such as push boats or dredgers that have propulsion means, and the barges are integrally connected to the self-propulsion ship and navigate by the propulsion means of the self-propulsion ship Thus, there is known a barge-coupled ship that can transport a load loaded on a barge to a required unloading place or a loading place.

  In such a barge connection ship, a male connection part is provided on one of the self-propulsion ship and barge connected to each other, and a female connection part is provided on the other side, and a male connection part and a female connection part are provided. And the barge and the self-propelled ship are integrated by restraining each other with an appropriate restraining device.

In order to fit the male connector and the female connector, the draft of the barge and the self-propelled ship must be the same. After the draft was adjusted, connection was performed (for example, refer to Patent Document 1).
JP 2001-341692 A

  However, since it takes time to adjust the draft between the barge and the self-propelled ship, it takes a lot of time to connect the barge and the self-propelled ship, and the work efficiency of connecting the barge and the self-propelled ship is extremely poor. There was a problem.

  In addition, since the draft state of the barge always fluctuates according to the load, it is necessary to adjust the draft every time the ship is connected to the self-propelled ship. During the draft adjustment, the barge is stopped at the landing place or the loading place. Therefore, the unloading operation or the loading operation is also stopped, and the work efficiency of the unloading operation or the loading operation is reduced.

  The barge connection body of the present invention is a barge connection body used to connect one end to the barge to connect to a self-propelled ship or another barge, and is fitted and connected to the barge so as to be movable up and down, and floated on the water surface. I let you.

  Further, a locking projection that is movable forward and backward toward the side is provided, and the fitting connection is maintained by engaging the barge with the locking projection that has advanced, and the first connection that is fitted and connected to the barge And a connecting body connecting the first connecting body and the second connecting body, the connecting body being deformable. It also has a feature.

  Further, the barge connection structure of the present invention is a barge connection structure in which the self-navigation ship and the barge are connected to each other through a connecting body that is fitted to the self-navigation ship so as to be able to move up and down, and also to the barge. The connected body is levitated in the draft state of the connected body itself without being affected by the draft state of the self-propulsion ship and the draft state of the barge.

  Further, the connecting body is composed of a self-propelling ship-side connecting body that fits to the self-navigating ship, a barge-side connecting body that fits to the barge, and a connecting body that connects the self-navigating ship-side connecting body and the barge-side connecting body. The connection body is also characterized by being freely deformable.

  In the barge connection structure of the present invention, the first barge and the second barge are connected to the first barge via a connecting body that is fitted to the first barge so as to be raised and lowered, and is also fitted to the second barge so as to be raised and lowered. The connecting body is levitated in the draft state of the connecting body itself without being affected by the draft state of the first barge and the draft state of the second barge.

  Further, the barge connection ship of the present invention is a barge connection ship in which the self-navigation ship and the barge are connected to each other through a connecting body that is fitted to the self-navigation ship so as to be able to move up and down. The connected body is levitated in the draft state of the connected body itself without being affected by the draft state of the self-propulsion ship and the draft state of the barge.

  The barge connection ship according to the present invention is a barge connection ship in which a plurality of barges are connected in a row via a connecting body, and a self-propulsion ship is connected to one end of the barge connected in a row. The connecting body for connecting to the second barge is fitted to the first barge so that it can be raised and lowered, and is also fitted to the second barge so that it can be raised and lowered. Further, the draft state of the first barge and the second barge It was decided to float in the draft state of the connector itself without being affected by the draft state of the barge.

  According to the first aspect of the present invention, there is provided a barge connecting body that is connected to a barge and connected to a self-propelled ship or another barge, and is fitted and connected to the barge so as to be movable up and down. As a result of the levitation, the connected body is always in a constant draft state regardless of the draft state of the barge. Or it can be connected to other barges. Therefore, it is possible to improve work efficiency without requiring draft adjustment work.

  According to the second aspect of the present invention, by providing the locking projection that is movable forward and backward toward the side, and maintaining the fitting connection by engaging the barge with the advanced locking projection, the barge The connecting body can be easily attached and detached, and the working efficiency of the connecting work and the releasing work can be improved.

  According to a third aspect of the present invention, a first connector that is fitted and connected to a barge, a second connector that is fitted and connected to another barge or a self-propelled ship, the first connector, and the second connector. And the connecting body and the barge or the self-propelled ship are connected via the first connecting body and the second connecting body to achieve strong connection, and the first connecting body. The connection body can be reduced in weight and size by connecting the second connection body and the second connection body via the connection body. In addition, since the connecting body is made deformable, when the connecting ship is configured by connecting barges in multiples via the connecting body, the hull of the connecting ship bends at the connecting body portion when the connecting ship turns. Thus, the turning radius can be reduced, and the maneuverability of the connecting ship can be improved.

  According to the invention of claim 4, a barge connection structure that connects the self-navigation ship and the barge via the coupling body that is fitted to the self-navigation ship so as to be able to move up and down, and is also fitted to the barge so as to be capable of raising and lowering. The connected body is not affected by the drafting state of the navigation ship and the drafting state of the barge, and the floating body is floated in the drafting state of the connecting body itself. And can be easily connected, and the work efficiency can be improved by omitting the draft adjustment work.

  According to the fifth aspect of the present invention, the connecting body includes a self-propelling ship-side connecting body that fits into the self-propelling ship, a barge-side connecting body that fits into the barge, the self-navigating ship-side connecting body, and the barge-side connecting body. By configuring the connecting body to be connected and making the connecting body deformable, the connection of the connecting body to the self-propelled ship and barge can be strengthened. By connecting the coupling body and the barge-side coupling body, the coupling body can be reduced in weight and size, and the coupling body can be manufactured at low cost.

  In addition, since the connecting body is freely deformable, when a connecting ship consisting of a self-propelled ship with barges connected via the connecting body turns, the connecting ship is bent to reduce the turning radius. It is possible to improve the maneuverability of the connected ship.

  According to the sixth aspect of the present invention, the first barge and the second barge are fitted to the first barge via the coupling body that is fitted to the first barge so as to be raised and lowered, and is also fitted to the second barge so as to be raised and lowered. The connecting body is floated in the draft state of the connecting body itself without being affected by the draft state of the first barge and the draft state of the second barge. The first barge and the second barge having different states can be easily connected using a connecting body, and the work efficiency can be improved by omitting the draft adjustment work.

  According to the seventh aspect of the present invention, there is provided a barge connection ship in which the self-navigation ship and the barge are connected to each other through a connecting body that is fitted to the self-navigation ship so as to be able to move up and down and is also fitted to the barge. In the same manner as in the invention of claim 4, the coupled body is floated in the drafted state of the coupled body itself without being affected by the drafted state of the self-propulsion ship and the drafted state of the barge. The ship and the barge can be easily connected using a connecting body, and the work efficiency can be improved by omitting the draft adjustment work.

  According to the eighth aspect of the present invention, there is provided a barge connecting ship in which a plurality of barges are connected in a row via a connecting body, and a self-propelled ship is connected to one end of the barge connected in a row, The connecting body for connecting to the second barge is fitted to the first barge so that it can be raised and lowered, and is also fitted to the second barge so that it can be raised and lowered. Further, the draft state of the first barge and the second barge The first barge and the second barge having different drafting states can be obtained in the same manner as in the sixth aspect of the invention by floating the coupling body in the drafting state without being affected by the drafting state of the barge. The connection body can be easily connected, and the work efficiency can be improved by omitting the draft adjustment work.

  In the barge connection body, the barge connection structure and the barge connection ship of the present invention, when the self-propelled ship and the barge and the barges are connected to each other, the connection body is connected via the connection body. And is also fitted to a barge so as to be movable up and down.

  And the connection body is levitated in the draft state of the connection body itself, without being influenced by the draft state of the self-propulsion ship and the draft state of the barge.

  Therefore, the connected body is connected to the self-propelled ship and the barge regardless of the draft state of the self-propelled ship and the draft state of the barge. It is possible to improve the working efficiency by omitting the draft adjustment work.

  In particular, when the connected body is composed of a self-propelled ship-side connected body that fits into a self-propelled ship, a barge-side connected body that fits into a barge, and a connected body that connects the self-propelled ship-side connected body and the barge-side connected body Alternatively, if the barges are to be connected to each other, the first barge side connector that fits the first barge, the second barge side connector that fits the second barge, the first barge side connector, and the first barge In the case where the connecting body is configured to connect the two barge side coupling bodies and the connecting body is deformable, the self-propulsion ship side coupling body and the barge side coupling body, and the first barge side coupling body and the first While the two barge side coupling bodies are formed into shapes that can be firmly fitted and connected to the self-propelled ship and the barge, respectively, the self-voyage ship side coupling body and the barge side coupling body, and the first barge side coupling body and the second barge By connecting the side connector with a lightweight and compact connector, Weight and compactness can be achieved, it is possible to manufacture the connecting member at a low cost.

  In particular, when the connecting body is made freely deformable, when a connecting ship consisting of a self-propelled ship with a barge connected via the connecting body turns, the connecting ship becomes bent and bent at the connecting body part. A turning radius can be made small and the controllability of a joint ship can be improved.

  Moreover, when performing maintenance of such a connection ship, since a self-propelled ship, a barge, and a connection body can be maintained separately, the work efficiency of a maintenance work can be improved.

  As the connection body, a universal joint, a chain, a wire or the like can be used.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a plan view of a connecting ship according to the present embodiment, and FIG. 2 is a side view thereof. In this embodiment, the self-propelled ship 10 is a dredger, and the first barge 21, the second barge 22, and the third barge 23 are sequentially connected to the rear part of the self-propelled ship 10 via the connecting body 30, and the first barge 21 and the second barge 22, and the second barge 22 and the third barge 23 are also connected to each other through the connecting body 30.

  The self-propulsion vessel 10 composed of a dredger is a catamaran provided with a left screw 11 as a left propulsion means and a right screw 12 as a right propulsion means. The left screw 11 and the right screw 12 are each connected to an engine (not shown). Thus, it is possible to navigate even with the self-propelled ship 10 alone.

  The spacing between the left screw 11 and the right screw 12 is larger than the width of each barge 21, 22, 23, and the left screw 11 is stretched to the left of the left side of each barge 21, 22, 23. At the same time, the right screw 12 protrudes to the right side of the right side of each barge 21, 22, 23, and the propulsive force generated by the left screw 11 and the right screw 12 is canceled by each barge 21, 22, 23. To prevent that.

  Further, the self-propulsion ship 10 of the present embodiment does not usually have a rudder provided at the rear position of the screw, and the left screw 11 and the right screw 12 themselves are adjusted by adjusting the rotation speed of the left screw 11 and the right screw 12. The self-propulsion vessel 10 is operated as a steering device. In particular, by allowing the left screw 11 and the right screw 12 to rotate in reverse, the ship maneuvering performance of the self-propelled ship 10 can be improved, and the barge connection workability can be improved.

  The self-propelled ship 10 is provided with a bridge 13 at the upper portion, and the self-propelled ship 10 is operated by the bridge 13.

  The rear portion of the self-propelled ship 10 is provided with a fitting recess 14 that is recessed so that one end of the coupling body 30 can be fitted therein. The fitting projection 14 has a locking projection provided on the coupling body 30 as described later. Engagement grooves are provided for inserting the 39 into the engaged state.

  The first barge 21, the second barge 22, and the third barge 23 are each constituted by a box-shaped hull provided with a receiving portion 25 for holding a load. In particular, the front end portion and the rear end portion of the hull are A first inclined surface 26a and a second inclined surface 26b are provided on the left and right sides, respectively, so as to taper toward the front end portion and the rear end portion. Further, the front end portion and the rear end portion of the bottom portion of the hull are provided with third inclined surfaces 26c each having an upward slope toward the front end portion and the rear end portion.

  Further, the front end and the rear end of each barge 21, 22, 23 are respectively provided with a front fitting recess 27f and a rear fitting recess 27b that are recessed so that one end of the coupling body 30 can be fitted, The front fitting recess 27f and the rear fitting recess 27b are provided with engagement grooves 28, 28 for inserting a locking projection 39 provided on the coupling body 30 to form an engaged state as will be described later. ing.

  In this embodiment, the connection body 30 includes a first connection body 31 having a substantially rectangular block shape, a second connection body 32 having the same shape as the first connection body 31, a first connection body 31, and a second connection body. A connecting body 33 is formed by connecting the connecting body 32 side by side in the front-rear direction. In particular, the first connection body 31 and the second connection body 32 are provided with cavities inside and float on the water surface. In addition, in order to stabilize the attitude | position in a floating state, it is good also considering the bottom face etc. of the 1st connection body 31 and the 2nd connection body 32 as an appropriate shape.

  An engagement control cylinder 35 for advancing and retracting the first rod 34a and the second rod 34b in the left-right direction is provided on the upper side surfaces of the first connecting body 31 and the second connecting body 32. A locking projection 39 is provided at the tip of the two rod 34b. Then, by operating the engagement control cylinder 35, the locking projections 39 are advanced from the side of the first connecting body 31 and the second connecting body 32 to the outside to be in a protruding state, as will be described later. The combined state is configured.

  Hereinafter, the barge connection structure of the present embodiment will be described in detail with reference to FIGS. 3 and 4. 3 is a schematic plan view of a connecting portion of the first barge 21 and the second barge 22, FIG. 4 is a schematic side view thereof, FIG. 3 (a) and FIG. 4 (a) are states before connection, FIG. (B) and FIG.4 (b) have shown the state after a connection. 3 and 4, W is the water surface.

  The rear fitting recess 27b of the first barge 21 and the front fitting recess 27f of the second barge 22 are vertically extended to the left and right side surfaces 29a and 29b facing the front and rear fitting recesses 27f and 27b, respectively. An engagement groove 28 is provided.

  In the engaging groove 28, there are locking projections 39 provided at the tip of the first rod 34 a and the tip of the second rod 34 b of the engagement control cylinder 35 provided above the first connecting body 31 and the second connecting body 32. By inserting the locking projection 39 into the engaging groove 28, the first connecting body 31 can be fitted into the rear fitting recess 27b so as to be movable up and down along the engaging groove 28. In addition, the second coupling body 32 can be fitted into the front fitting recess 27f so as to be movable up and down along the engagement groove 28.

  In this way, the first connecting body 31 and the second connecting body 32 can be moved up and down with respect to the first barge 21 and the second barge 22, so that the connecting body 30 is connected to the first barge 21 and the second barge 22. It will be in the state which floated on the water surface W, without being influenced by the draft state, and the draft state of the connection body 30 can be always fixed.

  Therefore, by connecting the first barge 21 and the second barge 22 via the connecting body 30 in which the draft state is always constant, the draft state of the first barge 21 and the second barge 22 is not affected. Since the connection work of the 1st barge 21 and the 2nd barge 22 can be performed, a connection work can be performed without performing draft adjustment work, and work efficiency can be improved.

  In the present embodiment, the engagement control cylinder 35 is provided on the upper side of the first connection body 31 and the second connection body 32 for ease of installation work and maintenance work of the engagement control cylinder 35. The control cylinder 35 is not limited to the case where it is provided above the first connecting body 31 and the second connecting body 32. Alternatively, the first connecting body 31 and the second connecting body 32 may be engaged with the first barge 21 and the second barge 22 by a mechanism other than the engagement control cylinder 35, respectively.

  In the present embodiment, a hydraulic cylinder is used as the engagement control cylinder 35, and a hydraulic pump or the like for driving the hydraulic cylinder is provided inside the first connecting body 31 and the second connecting body 32, respectively. Alternatively, the engagement control cylinder 35 may be operated by being connected to a hydraulic circuit provided in the first barge 21 and the second barge 22. Furthermore, the engagement control cylinder 35 may be electrically connected to the bridge 13 of the self-propelled ship 10 so as to control the operation based on a required control signal.

  In this embodiment, the 1st coupling body 31 and the 2nd coupling body 32 are connected via the connection body 33 which consists of a universal joint.

  For example, as shown in FIG. 5, the connecting body 33 may be connected via a connecting arm 42 provided with substantially spherical locking protrusions 41 and 41 at both ends, as shown in FIG. 5. 6 may be connected via a chain 43 as shown in FIG. In FIG. 5, reference numeral 44 denotes a pivot frame that pivots the locking projection 41 so as to be rotatable.

  Alternatively, the connecting body 30 may be a block body in which the first connecting body 31 and the second connecting body 32 are integrally formed without providing the connecting body 33, but the universal joint or the end portion is substantially spherical. By connecting the first connecting body 31 and the second connecting body 32 with a connecting arm 42 composed of a locking projection 41 and a connecting body 33 that can be deformed like a chain, the weight of the connecting body 30 can be reduced. And cost reduction.

  When the first barge 21 and the second barge 22 are connected via the connecting body 30 described above, one of the first connecting body 31 and the second connecting body 32 of the connecting body 30 is connected to the first barge 21. The second barge 22 is connected in advance to one of the second barges 22 and then the other is connected.

  That is, as shown in FIG. 3A and FIG. 4A, the first connecting body 31 of the connecting body 30 is fitted in the rear fitting recess 27b of the first barge 21 in advance, so that the first connecting body 31 When the engagement protrusion 39 of the engagement control cylinder 35 provided in the insertion is inserted into the engagement groove 28 and connected, the first barge 21 to which the connection body 30 is connected is brought close to the second barge 22, As shown in FIGS. 3B and 4B, the second connecting body 32 is fitted into the front fitting recess 27f of the second barge 22, and the engagement control cylinder 35 provided in the second connecting body 32 is fitted. The first rod 34a and the second rod 34b are extended, and the locking protrusion 39 is inserted into the engaging groove 28 and connected.

  At this time, as shown in FIG. 3B and FIG. 4B, the first barge 21 and the second barge 22 may be different from each other in the draft state, and the first barge 21 without adjusting the draft. And the second barge 22 can be connected.

  On the other hand, when the connection between the first barge 21 and the second barge 22 by the connecting body 30 is released, the first rod 34a and the second rod 34b of the engagement control cylinder 35 provided in the second connecting body 32 are retracted. Thus, the locking protrusion 39 is extracted from the engaging groove 28, and the first barge 21 is separated from the second barge 22 by the self-propulsion ship 10 connected to the first barge 21 to release the connection.

  As described above, the connecting body 30 can be moved up and down with respect to the first barge 21 and the second barge 22, so that the connecting body 30 is affected by the draft state of the first barge 21 and the second barge 22. In addition, since the coupling body 30 is always in a constant draft state by being floated in the drafting state of the coupling body 30 itself, the coupling body 30 can be connected and disconnected at any time via the coupling body 30.

  In the above description, the connection structure between the first barge 21 and the second barge 22 has been described for convenience of explanation. However, in the case of the connection structure between the self-propulsion ship 10 and the first barge 21, the first barge 21 described above is used. The first barge 21 of the connection structure between the first barge 22 and the second barge 22 can be read as the self-navigation ship 10 and the second barge 22 can be read as the first barge 21. In the case of the connection structure of the second barge 22 and the third barge 23 In this case, the first barge 21 and the second barge 22 in the connecting structure of the first barge 21 and the second barge 22 may be read as the second barge 22 and the second barge 22 is replaced with the third barge 23.

  By connecting the self-navigation ship 10, the first barge 21, the second barge 22, and the third barge 23 with the above-described connecting body 30, a connecting ship can be obtained as shown in FIGS. .

  In particular, as shown in FIG. 2, the self-propulsion ship 10, the first barge 21, the second barge 22, and the third barge 23 may be different in drafting state, and each of them may be connected after the connection work as necessary. The draft adjustment of the barges 21, 22, 23 may be performed. In particular, the draft adjustment can be performed while navigating the connecting ship, and the working efficiency can be improved by performing the draft adjustment during the navigation.

  After completion of the draft adjustment, the engagement control cylinder 35 causes the engagement protrusion 39 to strongly contact the engagement groove 28, and the connection body 30 and the self-navigation ship 10, and the connection body 30 and each of the barges 21, 22, By strengthening the engagement state with the ship 23 and integrating the self-navigation ship 10 to the third barge 23, it is possible to improve the navigation stability of the connected ship and enable high-speed navigation.

  Further, since the connecting body 33 of the connecting body 30 is freely deformable as described above, the turning radius of the connecting ship can be reduced by bending the connecting ship when the connecting ship turns. Can be improved.

  In particular, the first inclined surface 26a and the second inclined surface 26b are provided at the front end portion and the rear end portion of each barge 21, 22, 23 so as to be tapered toward the front end portion and the rear end portion, respectively. Therefore, when a connecting ship turns, it can prevent that a connecting ship bends and adjacent barges contact.

  In this embodiment, the connecting ship is configured by connecting three barges to the self-propelled ship 10, but the number of barges connected to the self-propelling ship 10 is not limited to three, and multiple connections are made as three or more. It may be a ship, or may be one or two.

  As described above, each barge 21, 22, 23 is provided with the third inclined surface 26c at the bottom of the ship, so that the barge at the end that was previously connected to the self-propelled ship 10 at the time of connecting work is connected. The resistance due to water can be reduced when approaching the barge, and the barge can be quickly connected by improving the maneuverability of the self-propulsion vessel 10.

  It should be noted that a movable flap is provided at an appropriate position on the bottom of each barge 21, 22, 23, and by adjusting this flap, the first inclined surface 26 a, the second inclined surface 26 b, the third You may make it suppress the resistance which arises in the part of the inclined surface 26c.

  In the above-described embodiment, the self-propelled ship 10 has been described as a dredger. However, as shown in FIG. 7, a self-propelled ship 10 ′ composed of a pushed ship can be used as a connected ship.

  In the connecting ship shown in FIG. 7, the first barge 21, the second barge 22, and the third barb are connected between the stern-side self-propelled ship 10 'and the bow part 19 having the bow structure via the connecting body 30 described above. Barge 23 is connected.

  The self-propulsion ship 10 'is provided with an engine (not shown) as a propelling means and a propeller 51 linked to the engine, and the engine and rudder 53 are controlled by a bridge 52 provided on the upper side of the self-propulsion ship 10'. The self-propulsion ship 10 'is navigated.

  In particular, the self-propulsion ship 10 'and the first barge 21 in the present embodiment are connected to the second connection body 32' connected to the tip of the self-propulsion ship 10 'via a connection body 33' such as a universal joint. It is done using.

  Further, the third barge 23 and the bow portion 19 are connected by using the first linkage body 31 ′ connected to the rear end portion of the bow portion 19 via a connection body 33 ′ such as a universal joint. .

  That is, since the self-propelled ship 10 ′ and the bow portion 19 have little fluctuation in the draft state, the self-propelled ship 10 ′ and the bow portion 19 themselves can be regarded as the first connected body 31 and the second connected body 32.

  In the case of a joint ship composed of a self-propulsion ship 10 ′ composed of a pusher in this way, the self-propulsion ship 10 ′ adjacent to the barge and the barges by using an appropriate restraint mechanism in addition to the connection body 30 and barges, and further It is also possible to enable high-speed navigation by connecting the bow and the bow part and integrating them.

It is a top view of a connection ship. It is a side view of a connection ship. It is a schematic plan view of the connection part of a 1st barge and a 2nd barge. It is a schematic side view of the connection part of a 1st barge and a 2nd barge. It is explanatory drawing of the connection body of other embodiment. It is explanatory drawing of the connection body of other embodiment. It is explanatory drawing of the connection ship of other embodiment.

Explanation of symbols

W Water surface
10 Self-propelled ship
11 Left screw
12 Right screw
13 Bridge
14 Mating recess
21 First Barge
22 Second barge
23 3rd Barge
25 containment
26a 1st inclined surface
26b 2nd inclined surface
26c 3rd inclined surface
27f Front mating recess
27b Rear mating recess
28 Engagement groove
29a Left side
29b Right side
30 linked body
31 First connected body
32 Second linked body
33 Connector
34a 1st rod
34b Second rod
35 Engagement control cylinder
39 Locking protrusion

Claims (8)

A barge connector used for connecting one end to a barge and connecting to a self-propelled ship or another barge,
A barge connection body characterized by being fitted and connected to the barge so as to be movable up and down and floated on the water surface.   The barge connection according to claim 1, wherein a locking projection that is movable forward and backward is provided, and the fitting connection is maintained by engaging the barge with the advanced locking projection. body.   A first connecting body fitted and connected to the barge, a second connecting body fitted and connected to the other barge or the self-propelled ship, and a connecting body connecting the first connected body and the second connected body; The barge coupling body according to claim 1, wherein the connection body is freely deformable. A barge connection structure that connects the self-propelled ship and the barge via a connecting body that is fitted to the self-propelled ship so as to be movable up and down, and is also fitted to the barge so as to be movable up and down,
The barge connection structure in which the connecting body is levitated in the drafting state of the connecting body itself without being affected by the drafting state of the self-propelled ship and the drafting state of the barge.   The connecting body is a connecting body that connects the self-propelling ship-side connecting body that fits into the self-navigating ship, the barge-side connecting body that fits into the barge, and the self-navigating ship-side connecting body and the barge-side connecting body. 5. The barge coupling structure according to claim 4, wherein the connecting body is configured to be freely deformable. A barge coupling structure that couples the first barge and the second barge via a coupling body that is fitted to the first barge so as to be movable up and down and is also fitted to the second barge so as to be movable up and down. There,
The barge connection structure in which the connection body is floated in the draft state of the connection body itself without being affected by the draft state of the first barge and the draft state of the second barge. A barge connection ship that is connected to a self-propelled ship so as to be movable up and down, and that connects the self-propelled ship and the barge via a connecting body that is also fitted to a barge so as to be movable up and down,
The connected body is a barge-connected ship that is levitated in the draft state of the connected body itself without being affected by the draft state of the self-propelled ship and the draft state of the barge. A barge connection ship in which a plurality of barges are connected in a row via a connecting body, and a self-propelled ship is connected to one end of the barge connected in a row,
The connecting body for connecting the first barge and the second barge is fitted to the first barge so that it can be raised and lowered, and is also fitted to the second barge so that it can be raised and lowered. A barge connection ship that is levitated in the draft state of the connector itself without being affected by the draft state of one barge and the draft state of the second barge.

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