JP4268675B2 - Ship transport device and ship transport method - Google Patents

Description

The present invention relates to a boat transfer device and a boat transfer method for transferring a boat such as a boat or a yacht in a harbor or a marina, for example.

  In general, in a marina such as a lake port, a boat such as a boat or a yacht is transported to land on land by landing or landing a boat. Conventionally, in order to carry this boat, a boat (particularly, a small boat or a middle boat) is placed on a wheeled boat and then pulled by a trailer or the like to carry the boat. . However, with this method, a large space is required for the movement of the trailer that has pulled the stern, and the ship can be transported smoothly and efficiently in a limited space on the site where a large number of ships are placed. It was difficult to place on. For this reason, there are many dead spaces in which ships cannot be stored, and this dead space occupies about 40% of the entire storage space. In addition, a heavy and expensive stern that could withstand the weight of the hull was necessary.

  For this reason, for example, Patent Document 1 includes a jack-up device that can lift the pedestal when it enters the bottom of the large craft-mounted pedestal, and has a handling function that can be driven and steered by four-wheel drive. A transport vehicle has been proposed. In this large boat transport vehicle, the four wheels can be independently steered, so that the large boat can be transported even in a relatively small space.

  Patent Document 2 discloses a self-propelled traveling carriage, a telescopic boat support frame provided on the upper part of the carriage so as to be extendable and contractable in a horizontal plane, and a boat lifting device provided on the support frame. A boat transport device having been proposed. In this boat transfer device, since the boat can be lifted and lowered at a position overhanging from the traveling carriage, the boat can be raised and lowered at a position outside the traveling area of the traveling carriage.

Japanese Utility Model Publication No. 4-41496 Japanese Patent Laid-Open No. 5-98833

The following problems remain in the conventional technology.
That is, in the technique described in Patent Document 1, since it is a large transport vehicle manufactured for a large boat, it does not correspond to the size of a small boat and is unnecessarily large when transporting a small boat. On the contrary, there is a disadvantage that a large wasteful moving space is required for the car. Therefore, a wide moving space is required in consideration of the size of the large transport vehicle itself, and the space efficiency is deteriorated in the storage of the ship on land. Also, when not in transport use, large transport vehicles are placed and stored in empty spaces in the marina, but a large space for large transport vehicles must be secured. Even in this respect, space efficiency is poor. Also, even if the size is designed to be compatible with a small boat, it is not possible to transport a larger boat, and the size of the boat that can be transported is limited to the size of the transport vehicle. There was an inconvenience.
In addition, the technique described in Patent Document 2 requires a traveling carriage and a support frame that are wider than a boat. Only a boat smaller than these sizes can be transported, and the size of the transportable boat is small. There was an inconvenience of being restricted. In addition, in this technique, if the traveling carriage and the support frame are enlarged in order to cope with small boats to large boats, a large movement space is required as in Patent Document 1, and particularly in the land storage of small boats. However, there was a problem that the space efficiency in the marina deteriorated.

  The present invention has been made in view of the above-described problems, and can be used for large and small vessels, can save space for movement and storage, and can further reduce the cost of a boat. An object is to provide an apparatus.

  The present invention employs the following configuration in order to solve the above problems. That is, the ship transporting apparatus of the present invention includes a front carriage having a lifting mechanism capable of lifting and placing the front half of the ship and a self-propelling mechanism capable of freely changing the direction of the wheels, The rear carriage having a lifting mechanism that can be placed by lifting the rear half and a self-propelling mechanism that can freely change the direction of the wheels, and the front carriage and the rear carriage are connected and the distance between them is adjusted. And a possible connecting mechanism.

  In this ship transporting device, the front carriage and the rear carriage are connected and a connecting mechanism capable of adjusting the distance between the two is provided, so that the front carriage and the rear carriage can be connected according to the size of the ship. Ships can be transported at different intervals. In addition, since the front and rear trolleys are self-propelled that can change direction by changing the direction of each wheel, even if the movement space during transportation is small, there should be at least a conveyance path that is the size of a boat. In this case, it can be transported sufficiently. Furthermore, if there is a space in which the ship transfer device can enter, the ship can be easily moved to the lower part of the ship and supported on the bottom of the ship. In addition, during storage other than during transportation, the overall distance between the front and rear trolleys can be minimized by using a coupling mechanism, so that the overall size of the ship transportation device can be changed to a minimum. Can be stored.

  Moreover, the boat conveyance device of the present invention is characterized in that the coupling mechanism supports the other of the front carriage and the rear carriage so that the other can tilt. That is, in this ship transporting device, the connecting mechanism supports the other of the front and rear carts so that the other can tilt, so that the front cart and the rear cart can be used even on a transport path having a tilt change. However, it is possible to maintain the inclination corresponding to the conveyance path individually. Therefore, evenly distributed weight is applied to each wheel, preventing the wheels of the front or rear carriage from floating away from the ground or becoming unstable due to the load being imbalanced. Even when the boat is pulled up through the tank, smooth and stable transportation can be performed.

  Further, in the boat conveyance device according to the present invention, the self-propelled mechanism has a plurality of pairs of the wheels having the same rotation axis, and the wheels of each pair tilt the rotation shaft with respect to the horizontal. It is supported as possible. That is, in this ship transporting device, each pair of wheels is supported so that the rotation axis can be tilted with respect to the horizontal, so that both wheels of the pair are in a grounded state even on a highly uneven transport path. Since it can maintain and it applies a load equally, it can prevent that an excessive load is applied to one wheel. Therefore, the road surface load per unit area is reduced by applying an evenly distributed load to the wheels, and it can be used not only on a concrete road surface but also on a road surface such as a simple paved asphalt.

  Further, in the boat transport device of the present invention, the lifting mechanism includes a pair of side support plates that support both side surfaces of the bottom of the boat, and a side support portion that can change the angle of the side support plates. And a central support plate that supports a central portion of the ship bottom and has a seat area larger than that of the side support plate. In other words, in this ship transporting device, both sides of the bottom of the ship are supported by the side support part having the side support plate with variable angle, so that both sides of the ship are supported according to the shape and size (width) of the ship. In addition, since the center portion of the ship bottom is supported by the center support plate having a large seating area, the contact area can be increased and damage to the ship bottom can be reduced.

  Further, the ship conveyance device of the present invention can be arranged in front of the front carriage, can be placed on the front half of the boat and can be supported, and can be arranged behind the rear carriage. A rear pedestal capable of supporting the latter half of the boat by placing it on the rear, from the position where the front pedestal and the rear pedestal are at the lowest height of the front trolley and the rear trolley by the lifting mechanism. The boat can be supported at a high position. That is, in this ship transporting device, the front carriage and the rear carriage that support the ship at a position higher than the height of the front carriage and the rear carriage at the lowest height are provided. If the front and rear carriages are placed before and after the front and rear carriages when the boat is transported to a predetermined position, the front and rear carriages can be easily lowered by lowering the front and rear carriages to the lowest position. And the boat can be supported by the rear stern. In this way, the front and rear pedestals can be used as a simple stern for storage, and the front and rear trolleys can be used as a self-propelled pedestal for transportation. Accordingly, it is not necessary to prepare a large number of heavy and expensive berths as in the prior art, and the berth cost can be reduced.

Further, in the ship conveyance device according to the present invention, the front part and the rear part include a plurality of stern wheels provided on a bottom part, and the bottom part is loaded by the ship when the ship is placed. And a wheel insertion / removal mechanism into which the stern wheel is pushed. In other words, this ship transport device is equipped with a wheel insertion / removal mechanism in which the pedestal wheel is pushed into the bottom by the load of the ship when the ship is placed. Thus, the stern wheels come out from the bottom, and the front stern and the rear stern can be easily moved by an operator. And in the state which mounted the boat, the load of a boat can be supported by the bottom part which earth | grounded when the pedestal wheel retracted in the bottom part.
The ship transport method of the present invention is a method of transporting a ship using the above-described ship transport device of the present invention, wherein the ship transport device is moved to a slope extending into the sea by the self-propelled mechanism. A submerged state, a step of guiding the boat to the slope and positioning the boat above the boat transport device, and a distance between the front carriage and the rear carriage by the coupling mechanism. Adjusting according to the length, positioning the front half of the boat above the front carriage, and positioning the rear half of the boat above the rear carriage, A step of supporting the boat, a step of climbing the slope by the self-propelled mechanism, and lifting the boat to the premises of the marina; Leave A step of moving the ship transporting device by the self-propelled mechanism and transporting the ship to a position adjacent to a place where the ship is stored; and a direction of the wheel in a length direction of the ship transporting device. A step of moving the ship transporting device in a transverse direction by setting the direction to an orthogonal direction and moving the ship in a storage direction; and the front platform and the bottom of the ship transported to the storage position; Carrying the rear pedestal by the pedestal wheel and installing the front pedestal in front of the front trolley and installing the rear pedestal after the rear trolley; The step of supporting the ship by the front and the rear and the step of the wheel being pushed into the bottom by the wheel take-in / out mechanism, and further lowering by the elevating mechanism to support the ship. A step of dividing, characterized in that the watercraft carrying device has, and moving from below of the watercraft.

The present invention has the following effects.
That is, according to the boat conveyance device according to the present invention, since the front carriage and the rear carriage having the lifting mechanism and the self-propelling mechanism are coupled and the coupling mechanism capable of adjusting the distance between the two is provided. It can accommodate the size of the boat and can be easily mounted, transported and stored in a narrow space. Therefore, various ships can be transported, work efficiency can be improved, and the storage space in the marina can be used efficiently.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, a first embodiment of a boat conveyance apparatus according to the invention will be described with reference to FIGS.

  As shown in FIGS. 1 to 5, the ship conveyance device 1 according to the present embodiment conveys a boat such as a boat between a slope at the shore and a predetermined position on a site in the harbor or marina, for example, in a marina of a harbor. A front carriage 5A having an elevating mechanism 2 capable of lifting and placing the front half (the bow side half) of the boat and a self-propelled mechanism 4 capable of freely changing the direction of the wheels 3, A rear carriage 5B having a lifting mechanism 2 capable of lifting and placing the latter half (stern side half) of the boat and a self-propelled mechanism 4 capable of freely changing the direction of the wheels 3, a front carriage 5A and a rear carriage 5B and a connecting mechanism 6 capable of adjusting the distance between them.

The front carriage 5A and the rear carriage 5B have a waterproof structure in which the hydraulic mechanisms of the self-propelled mechanism 4 and the coupling mechanism 6 are covered with an outer plate 8 in a watertight state, and have a plurality of wheels 3. 9 and an elevating and lowering box portion 10 that is moved up and down so as to be housed in a central recess 9a in the upper portion of the cart body 9.
The elevating mechanism 2 moves the elevating box part 10 up and down via the elevating box part 10 that can move up and down and a pair of elevating support plate parts 11 provided in the carriage body 9 as shown in FIG. And an elevating hydraulic cylinder 12 to be moved.

  That is, the elevating support plate portion 11 has a distal end supported rotatably on the side surface of the elevating box portion 10, and a proximal end supported rotatably on the side surface of the central recess 9 a of the carriage body 9. Further, the base end of the elevating support plate portion 11 is fixed to the distal end of a support shaft portion 13 fixed in a suspended state in the carriage body 9. Further, the lifting hydraulic cylinder 12 is connected to the base end of the lifting support plate portion 11 at a position shifted from the rotation axis thereof, and the support shaft portion 13 is rotated by the expansion / contraction operation of the lifting hydraulic cylinder 12. Is set to Further, the tip of the lifting support plate 11 is supported by the slot support 10a of the side support member 10b attached to the side of the lifting box 10 so as to be movable in the slot direction (extending direction of the lifting box 10). Has been. That is, a pin that fits into the elongated hole support portion 10a is provided at the tip of the lifting support plate portion 11, and the pin slides within the elongated hole support portion 10a. Further, the side support member 10b pivotally supports the elevating box 10 at the lower part of the center so as to be able to swing back and forth.

Accordingly, the lifting / lowering hydraulic cylinder 12 is expanded and contracted to rotate the support shaft portion 13 and the pair of lifting support plate portions 11 are rotated in the direction in which the tips of the two are close to each other. The lifting box portion 10 can be lifted from. For example, in the present embodiment, the lifting mechanism 2 is set so that the lifting box 10 can be lifted up to 700 mm from the upper surface of the carriage body 9.
Further, when the lifting box portion 10 is lowered to the lowest position, it is accommodated in the central recess 9a, and the upper surface is set to be flush with the upper surface of the cart body 9.
Furthermore, since the tip of the lifting support plate 11 that supports the lifting / lowering box portion 10 is movably supported by the long hole supporting portion 10a, the lifting / lowering box portion 10 is moved back and forth along the inclination of the boat. It is possible to incline.

The elevating box 10 has a pair of side support plates 14 that support both side surfaces of the bottom of the boat, and supports a side support 15 that can change the angle of the side support plates 14 and the center of the bottom of the boat. A central support plate 16 having a larger seating area than the side support plate 14 is provided.
In addition, the side surface support part 15 is accommodated in the notch part 9b formed in the corner | angular part of the trolley | bogie main body 9 by lowering the side surface support plate 14 to a horizontal state in the state which accommodated the raising / lowering box part 10 in the center recessed part 9a. The support surface of the side support plate 14 is set to be flush with the upper surface of the cart body 9.

  The central support plate 16 constitutes the upper plate of the lifting box 10. Further, the side surface support portion 15 is provided on the outer end surface of the lifting / lowering box portion 10. The side surface support portion 15 has a pair of support arm portions 17 having a side surface support plate 14 fixed to the front end and a base end rotatably supported on the front end surface or the rear end surface of the lifting / lowering box portion 10. As shown in FIGS. 2 and 4, these support arm portions 17 are connected at their base ends to a pair of side support hydraulic cylinders 19 in the lifting box portion 10 via a pair of side support shafts 18. Yes.

  When these side supporting hydraulic cylinders 19 are extended and contracted, the pair of side supporting shafts 18 are connected so as to be offset from the rotational axis of the side supporting shaft 18 so that the pair of side supporting shafts 18 rotate in opposite directions. That is, by extending and contracting the pair of side support hydraulic cylinders 19, the pair of side support shafts 18 rotates and the pair of support arm portions 17 rotate, and the opening angle and side support of the pair of support arm portions 17 are rotated. The angle of the plate 14 can be changed.

  As shown in FIG. 2, the connecting mechanism 6 connects the front carriage 5A and the rear carriage 5B, and is provided in a pair of rod-like connection support members 20 parallel to each other, and in the front carriage 5A and the rear carriage 5B. And a hydraulically driven telescopic motor 22 having a gear shaft 23 meshed with a tip gear portion 21 provided at an end portion of the connection support member 20. The tip gear portion 21 is provided inside the tip portion of the connection support member 20 and meshes with a gear shaft 23 inserted through a long hole portion 20a formed in the tip portion. That is, the tip gear portion 21 constitutes a rack and pinion rack, and the gear shaft 23 constitutes a pinion.

Therefore, by rotating the gear shaft 23 of the telescopic motor 22, the connection support member 20 advances and retreats with respect to the front carriage 5 </ b> A and the rear carriage 5 </ b> B, and the distance between the two carriages can be adjusted. For example, in the present embodiment, the overall length of the apparatus is set to 2300 mm when the distance between the front carriage 5A and the rear carriage 5B is narrowed most by the coupling mechanism 6, and the overall length of the apparatus is set to 3500 mm when the gap is widened.
In addition, the coupling mechanism 6 can be tilted with respect to one of the front carriage 5A and the rear carriage 5B by connecting the connection support member 20 in a rack and pinion manner so as to be tiltable with respect to the carriage main body 9. I support it.

  The self-propelled mechanism 4 has two pairs of wheels 3 which are solid tires having the same rotation axis on the left and right, that is, a total of 8 pairs (16 pieces) including the front carriage 5A and the rear carriage 5B. is doing. Each pair of wheels 3 has a built-in HST (Hydro Static Transmission) motor 24, which is a hydraulic drive motor, in the center, and is rotationally driven in a reversible manner for each pair. Further, as shown in FIG. 5, the HST motor 24 of each pair of wheels 3 is supported by the vertical support shaft 25 at the center between the pair of wheels 3.

  Further, a pair of vertical support shafts 25 arranged on the left and right sides of the carriage main body 9 are rotatably connected to both ends of a shift cylinder 26 provided in the carriage main body 9 via eccentric connecting members 27. The eccentric connecting member 27 is connected to the vertical support shaft 25 at a position shifted from the rotation axis of the vertical support shaft 25. That is, by extending and contracting the shift cylinder 26, the two vertical support shafts 25 are simultaneously rotated in the same direction via the eccentric connecting member 27, and each pair of wheels 3 is rotated together with the HST motor 24 to change the wheel direction. It can be changed. The shift cylinder 26 is controlled in conjunction with each other on the left and right, and all the wheels 3 are set so as to face in the same direction for each carriage body 9. Thus, the 16 wheels 3 are all steering wheels.

  The telescopic motor 22, the HST motor 24, the lifting hydraulic cylinder 12 and the shift cylinder 26 are all connected to a remote controller (not shown) by wire or wirelessly and can be controlled from the outside. Further, as shown in FIG. 5, an electric motor 30 that supplies hydraulic pressure to the telescopic motor 22, the HST motor 24, the lifting hydraulic cylinder 12, and the shift cylinder 26 is built in the cart body 9. A reduction gear 31 and a hydraulic pump 32 are connected to the electric motor 30, and the telescopic motor 22, the HST motor 24, the lifting hydraulic cylinder 12 and the shift cylinder 26 are connected from the hydraulic pump 32 driven by the electric motor 30 and the reduction gear 31. Hydraulic pressure is supplied. The electric power is supplied to the electric motor 30 by a battery 33 installed inside the center of the carriage body 9.

Further, as shown in FIG. 6, the ship conveyance device 1 of the present embodiment includes a front stern 7A that can be disposed in front of the front carriage 5A and can support the first half of the ship by placing it on the rear part. It has a rear stern 7B that can be arranged behind the cart 5B and that can support the latter half of the boat.
The front stern 7A and the rear stern 7B can support the boat at a position higher than the position where the height of the front trolley 5A and the rear trolley 5B is lowered by the lifting mechanism 2.

Further, the front stern 7 </ b> A and the rear stern 7 </ b> B are fixed to the U-shaped bottom support part 34, three vertical support members 35 erected on the bottom support part 34, and the vertical support members 35. The V-shaped support member 36 is provided.
Further, as shown in FIGS. 6 and 7, the front stern 7A and the rear stern 7B are provided with a plurality of casters (stern wheels) 38 provided on the bottom support portion 34 and when the boat is placed. A wheel loading / unloading mechanism 39 in which a caster 38 is pushed into the bottom support portion 34 by the load of the boat is provided.

  As shown in FIG. 7, the wheel insertion / removal mechanism 39 includes an outer cylinder portion 40 whose lower end is fixed to the bottom support portion 34 by a fixing plate 41, and a spring 42 that biases the outer cylinder portion 40 upward and downward. And an inner cylinder portion 43 inserted therein. A caster 38 is attached to the lower end of the inner cylinder portion 43 so as to be rotatable with respect to the vertical axis, and the inner cylinder portion 43 moves up and down by moving forward and backward in the outer cylinder portion 40 by a load. Yes. The urging force of the spring 42 is set according to the weight of the vessel to be placed, and the caster 38 is completely accommodated in the bottom support portion 34 in a state where the vessel is placed. Yes. Further, a stepped portion is formed in the lower portion of the inner cylinder portion 43, and the stepped portion is brought into contact with the fixed plate 41 as a stopper so as not to protrude from the outer cylinder portion 40 by a predetermined length or more.

  Next, a method for transporting a boat by the boat transport apparatus 1 according to the present embodiment will be described with reference to FIGS.

As an example of transportation, a case where a boat is transported from a slope facing the sea to a predetermined position in the marina will be described below.
First, as shown to (a) of FIG. 8, the ship conveyance apparatus 1 is operated with the remote controller previously, is moved to the slope S extended to the sea by the self-propelled mechanism 4, and it is set as a submerged state. In this state, the boat B is guided to the slope S and positioned above the boat transport device 1. At this time, the connection mechanism 6 adjusts the distance between the front carriage 5A and the rear carriage 5B in accordance with the length (size) of the boat B. Then, the front half of the boat B is positioned above the front carriage 5A, and the latter half of the boat B is positioned above the rear carriage 5B.

  In this state, the elevating mechanism 2 raises the elevating box part 10 of the front carriage 5A and the rear carriage 5B and narrows the opening angle of the support arm part 17. Thus, the side support plates 14 are brought into contact with and supported on both side surfaces of the boat B, and the center support plate 16 is brought into contact with and supported at the center of the boat B. At this time, the central support plate 16 is tilted back and forth in conjunction with the tilt of the boat B together with the lifting / lowering box portion 10, and contacts and supports the central portion of the boat B over the entire length of the plate. Next, as shown in FIG. 8 (b), while supporting both sides of the boat B and the center of the bottom of the boat, the self-propelled mechanism 4 of the boat transport device 1 climbs the slope S to the marina site. Lift ship B. Thereafter, the height and inclination of both the lifting and lowering box portions 10 of the front carriage 5A and the rear carriage 5B are adjusted so that the boat B becomes horizontal. In addition, although the inclination of the conveyance path changes at the upper end of the slope S, the front carriage 5A and the rear carriage 5B can be inclined with respect to each other by the coupling mechanism 6, so that even if the inclination state of the conveyance path changes, the ship The boat B can be transported while maintaining a good support state.

  Next, the ship transport device 1 is moved by the self-propelled mechanism 4 while the boat B is placed on the site where the boat B in the marina is stored. At this time, since the ship conveyance device 1 carrying the ship B can freely change the direction of each pair of wheels 3, if there is a transfer space for almost one ship B, the ship B smoothly Can be transported. For example, as shown in FIG. 9 (a), the boat B is transported to a position adjacent to the place where the boat B is stored, and then the directions of the wheels 3 of each pair are changed by 90 °. It is set in a direction orthogonal to the length direction of the ship conveyance device 1. Further, as shown in FIG. 9B, the boat conveyance device 1 is moved in the lateral direction to move to a position where the boat B is stored.

  Next, the front stern 7A and the rear stern 7B are carried by the casters 38 and placed under the boat B transported to the storage position. At this time, corresponding to the total length from the front end of the front carriage 5A to the rear end of the rear carriage 5B, the front platform 7A is installed in front of the front carriage 5A, and the rear platform 7B is installed after the rear carriage 5B. To do. Since the boat B is supported by the elevating mechanism 2 higher than the front pedestal 7A and the rear pedestal 7B, the front pedestal 7A and the rear pedestal 7B can be easily carried under the boat B.

  In this state, next, the boat B is slowly lowered while the boat B is supported by the elevating mechanism 2 until the bottom of the boat B is supported in contact with the front stern 7A and the rear stern 7B. When the boat B is supported by the front stern 7A and the rear stern 7B and the load of the boat B is applied, as shown in FIG. 10A, the casters 38 that are exposed from the bottom support part 34 are shown in FIG. (B), the wheel support mechanism 34 is pushed into the bottom support portion 34 by the wheel take-in / out mechanism 39, and the bottom support portion 34 is brought into direct contact with the ground.

  Next, after confirming that the boat B is firmly supported by the front stern 7A and the rear stern 7B, the elevating mechanism 2 lowers the elevating box 10 to the lowest position and the opening angle of the support arm 17 is also maximized. The side support plate 14 is accommodated in the notch 9b. Thereby, the support of the boat B by the boat transport apparatus 1 is completely released.

As shown in (c) of FIG. 9, the ship transport device 1 that has released the support of the ship B is moved from below the ship B, and again moves the other ship B up and down on the slope S. When moving to the slope S or when there is no work, it is moved to a predetermined storage position and placed. Furthermore, when storing the boat conveyance device 1, the distance between the front carriage 5A and the rear carriage 5B is set to the shortest by the coupling mechanism 6 so as to be stored in a compact state.
In addition, by performing the work in reverse to the above procedure, the boat B can be transported from the storage space to the slope S and landed.

  As described above, the boat transport apparatus 1 according to the present embodiment includes the connecting mechanism 6 that connects the front carriage 5A and the rear carriage 5B and can adjust the distance between the two. Accordingly, the boat B can be transported by changing the distance between the front carriage 5A and the rear carriage 5B. In addition, since the front carriage 5A and the rear carriage 5B are self-propelled so that the direction of each pair of wheels 3 can be changed and the direction can be freely changed, even if the movement space during the transfer operation is small, at least the size of the boat B is small. If there is such a transport path, it can be transported sufficiently. Therefore, various boats B can be transported, work efficiency can be improved, and storage space in a marina or the like can be used efficiently. As a result, the space where the boat B can actually be placed exceeds 80% of the total storage space.

Furthermore, if there is a space in which the boat conveyance device 1 can enter, the boat B can be easily moved to the lower part of the boat B to support the ship bottom and the boat B can be placed thereon. Further, when storing other than during transportation, the entire distance between the front carriage 5A and the rear carriage 5B is shortened by the coupling mechanism 6 so that the entire boat transportation apparatus 1 is compact and stored in a small space. be able to.
Moreover, it is possible to mount the boat B with the boat B mounted thereon, and the time required for these operations can be greatly reduced.

  In addition, since the coupling mechanism 6 supports the other of the front carriage 5A and the rear carriage 5B so that the other can be inclined, the front carriage 5A and the rear carriage 5B are respectively connected to the conveyance path having the inclination change. The inclination corresponding to the conveyance path can be maintained individually. Therefore, it is possible to prevent the wheels 3 of the front carriage 5A or the rear carriage 5B from floating away from the ground or becoming unstable due to imbalance of the load, and the boat B is pulled up from the sea or the like via the slope S. Even in this case, it is possible to carry out smooth and stable conveyance.

  Further, since both sides of the bottom of the ship are supported by the side support 15 having the side support plate 14 having a variable angle, both sides of the bottom can be supported according to the shape and size (width) of the boat B. Since the center portion of the ship bottom is supported by the center support plate 16 having a large seating area, the contact area can be increased and damage to the ship bottom can be reduced.

Furthermore, since the front pedestal 7A and the rear pedestal 7B are used as a simple stool for storage, and the front trolley 5A and the rear trolley 5B are utilized as a self-propelled pedestal for transportation, a conventional heavy and expensive stern can be used. There is no need to prepare a large number, and the cost of the stern can be reduced.
Since the front stern 7A and the rear stern 7B are provided with a wheel loading / unloading mechanism 39 in which the caster 38 is pushed into the bottom support portion 34 by the load of the boat B when the boat B is placed. In a state where the boat B is not placed, the caster 38 comes out of the bottom support portion 34 and can be easily moved by the operator's human power. In a state where the boat B is placed, the load of the boat B can be supported by the bottom support portion 34 that is grounded when the caster 38 is retracted into the bottom support portion 34.

  Next, a second embodiment of the boat transport apparatus according to the present invention will be described below with reference to FIGS. Note that, in the following description of the embodiment, the same components described in the above embodiment are denoted by the same reference numerals, and the description thereof is omitted.

  The difference between the second embodiment and the first embodiment is that, in the first embodiment, two pairs of adjacently disposed wheels 3 are independently supported by the carriage body 9, whereas the second embodiment is different from the second embodiment. As shown in FIGS. 11 to 14, in the ship conveyance device 51, two pairs of adjacent wheels 3 are connected by a suspension support portion 52 in a self-propelled mechanism 64, and each pair of wheels 3 is connected to each other. This is a point that the rotation axis is supported so as to be inclined with respect to the horizontal.

That is, in the second embodiment, the horizontal shaft portion 53 protrudes horizontally from both side portions of the cart body 9, and the suspension support portion 52 whose center is rotatably supported by the horizontal shaft portion 53 is provided. Yes. Thus, both end portions of the suspension support portion 52 are pivotally supported so as to be swingable up and down. A pair of wheels 3 are supported at both ends of the suspension support portion 52 so as to be inclined.
A vertical axis member 54 that rotatably supports the HST motor 24 about an axis orthogonal to the rotation axis of the wheel 3 is provided at the center upper portion of the HST motor 24 that supports the pair of wheels 3. Are connected through. Furthermore, an end horizontal shaft portion 56 orthogonal to the central axis is provided on the upper portion of the vertical axis member 54, and this end horizontal shaft portion 56 extends from the suspension support portion 52 to the end of the suspension support portion 52. It is pivotally supported so as to be rotatable about an axis along the current direction.

Therefore, the wheels 3 supported at both ends of the suspension support portion 52 move up and down in opposite directions by the swinging of the suspension support portion 52, and the two wheels 3 as a pair have the end horizontal shaft portion 56. It can swing around the center, and the rotation axis can be tilted with respect to the horizontal.
In this way, in the second embodiment, each pair of wheels 3 is supported so that the rotation axis can be tilted with respect to the horizontal, so both wheels 3 that are a pair are grounded even in a highly uneven conveyance path. Since the state can be maintained and the load is evenly applied, it is possible to prevent an excessive load from being applied to one wheel 3. Therefore, the road surface load per unit area is reduced by applying an evenly distributed load to the wheels 3 and can be used not only on a concrete road surface but also on a road surface such as a simple paved asphalt.

  The HST motor 24 that drives the pair of wheels 3 incorporates a differential gear (not shown) so that when a speed difference occurs between the inner and outer wheels 3, the same torque is applied while absorbing the difference. Yes. The self-propelled mechanism 64 includes a steering hydraulic motor (not shown) on each wheel 3, and the steering hydraulic motor can direct the wheel 3 in a predetermined direction via the steering ring gear 55.

  The technical scope of the present invention is not limited to the above embodiments, and various modifications can be made without departing from the spirit of the present invention.

It is a perspective view which shows the state set to the minimum height with the raising / lowering mechanism in the boat conveying apparatus of 1st Embodiment which concerns on this invention. In the boat conveyance apparatus of 1st Embodiment, it is the perspective view which fractured | ruptured a part of the raising / lowering box part and trolley | bogie main body which set the side surface support plate in the inclined state and was set high with the raising / lowering mechanism. In the boat conveyance apparatus of 1st Embodiment, it is a perspective view which shows the state which made the side surface support plate into the inclination state, and was set high with the raising / lowering mechanism. In the boat conveyance apparatus of 1st Embodiment, it is the perspective view which fractured | ruptured a part of the raising / lowering box part which made the side surface support plate the inclination state and was set high with the raising / lowering mechanism. It is a perspective view which shows the state which removed the raising / lowering box part and opened the upper part of the trolley | bogie main body in the ship conveying apparatus of 1st Embodiment. It is a perspective view which shows a front part stand and a rear part stand in the boat conveyance apparatus of 1st Embodiment. In the boat conveyance apparatus of 1st Embodiment, it is sectional drawing of the principal part which shows the caster and wheel taking-in / out mechanism of a front stern and a rear stern. In the boat conveyance apparatus of 1st Embodiment, it is explanatory drawing which shows the landing method of the boat from a slope in order of work. In the boat conveyance apparatus of 1st Embodiment, it is explanatory drawing which shows the method of conveying a boat to a storage space in order of work. In the boat conveyance apparatus of 1st Embodiment, it is a front view which shows the state before and behind the load of a front part stern and a rear stern. In the boat conveyance apparatus of 2nd Embodiment which concerns on this invention, it is a perspective view which shows the state set to minimum height with the raising / lowering mechanism. In the ship conveyance apparatus of 2nd Embodiment, it is a perspective view which shows the state which made the side surface support plate into the inclination state, and was set high with the raising / lowering mechanism. In the boat conveyance apparatus of 2nd Embodiment, it is a front view which shows the principal part of a wheel and a self-propelled mechanism. In the boat conveyance apparatus of 2nd Embodiment, it is a side view which shows the principal part of a wheel and a self-propelled mechanism.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1,51 ... Ship conveying apparatus, 2 ... Elevating mechanism, 3 ... Wheel, 4, 64 ... Self-propelled mechanism, 5A ... Front trolley, 5B ... Rear trolley, 6 ... Connection mechanism, 7A ... Front stern, 7B ... Rear stern, 14 ... side support plate, 15 ... side support unit, 16 ... center support plate, 38 ... caster (support wheel), 39 ... wheel loading / unloading mechanism, B ... ship

Claims (5)

A front carriage (5A) having a lifting mechanism (2) capable of lifting and placing the front half of the boat (B) and a self-propelling mechanism (4) capable of freely changing the direction of the wheels (3) ; A rear carriage (5B) having a lifting mechanism (2) capable of lifting and placing the latter half of the boat (B) and a self-propelling mechanism (4) capable of freely changing the direction of the wheels (3) ; The front carriage (5A) and the rear carriage (5B) are connected to each other and a connection mechanism (6) capable of adjusting the distance between the two is provided .
It can be arranged in front of the front carriage (5A) and can be arranged in the rear of the rear carriage (5B), and a front chassis (7A) that can support the front half of the boat (B). A rear stern (7B) capable of placing and supporting the latter half of the boat (B);
The front chassis (7A) and the rear chassis (7B) are positioned higher than the position where the height of the front carriage (5A) and the rear carriage (5B) is lowered by the lifting mechanism (2). Can support the boat (B),
The front stern (7A) and the rear stern (7B) are a plurality of stern wheels (38) provided at the bottom;
And a wheel loading / unloading mechanism (39) in which the stern wheel (38) is pushed into the bottom by the load of the boat (B) when the boat (B) is placed. A ship transport device. In the ship conveyance device according to claim 1,
The ship transporting device, wherein the coupling mechanism (6) supports the other of the front carriage (5A) and the rear carriage (5B) so that the other can tilt. In the boat conveyance device according to claim 1 or 2,
The self-propelled mechanism (64) has a plurality of pairs of the wheels (3) having the same rotation axis, and each pair of the wheels (3) can tilt the rotation axis with respect to the horizontal. A ship conveyance device characterized by being supported. In the ship conveyance apparatus as described in any one of Claim 1 to 3,
The lifting mechanism (2) has a pair of side support plates (14) that support both side surfaces of the bottom of the boat (B) and can change the angle of the side support plates (14). (15) and
A ship transporting apparatus comprising a center support plate (16) supporting a center portion of the ship bottom and having a seat surface area larger than that of the side support plate (14) .   A method for transporting a boat using the boat transport device according to claim 1, comprising:
  Moving the boat transfer device (1) to the slope (S) extending into the sea by the self-propelled mechanism (4) to be submerged;
  Guiding the boat (B) to the slope (S) and positioning it above the boat transport device (1);
  The connection mechanism (6) adjusts the distance between the front carriage (5A) and the rear carriage (5B) in accordance with the length of the boat (B), so that the upper part of the front carriage (5A) Positioning the front half of the boat (B) and positioning the rear half of the boat (B) above the rear carriage (5B);
  Supporting the boat (B) by the lifting mechanism (2);
  Climbing the slope (S) by the self-propelled mechanism (4) and raising the boat (B) to the site of a marina;
  The ship transport device (1) is moved by the self-propelled mechanism (4) while the ship (B) is placed on the premises where the ship (B) in the marina is stored, and the ship (B B) transporting said boat (B) to a position adjacent to the place where it is stored;
  The direction of the wheel (3) is set to a direction orthogonal to the length direction of the ship transporting device (1), and the ship transporting device (1) is advanced laterally to store the ship (B). A step of moving in the direction of
  The front stern (7A) and the rear stern (7B) are carried by the stern wheel (38) under the boat (B) transported to the storage position and in front of the front trolley (5A). Installing the front pedestal (7A) and installing the rear pedestal (7B) after the rear trolley (5B);
  The boat (B) is lowered by the elevating mechanism (2), and the boat (B) is supported by the front pedestal (7A) and the rear pedestal (7B), and the wheel take-in / out mechanism (39) A stern wheel (38) being pushed into the bottom;
  Further lowering by the elevating mechanism (2) to release the support of the boat (B);
  Moving the ship transfer device (1) from below the ship (B).

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