JP2022120844A - Transport structure having lifting function and transport system - Google Patents

Abstract

To provide a transport structure having a lifting function which enables reduction of restrictions by a use environment in road construction.SOLUTION: According to one embodiment of the invention, a transport structure having a lifting function is provided. The transport structure includes a base 31 and a lifting mechanism. When upper-lower, front-back, and left-right orientations are defined centering on a driver of a vehicle 2 which tows or transports the transport structure, the base 31 extends in a front-back direction to be configured to load cargos thereon and is towed by or mounted on the vehicle 2 to enable forward movement. The lifting mechanism is provided at the base 31 and includes: a boom 46; a hanging mechanism 47; and a first displacement mechanism. The boom 46 extends in the front-back direction. The hanging mechanism 47 is provided at the boom 46 and configured to hang and lift the cargo. The first displacement mechanism is configured to vary vertical and anteroposterior positions of the hanging mechanism while maintaining a horizontal attitude of the boom.SELECTED DRAWING: Figure 1

Description

TECHNICAL FIELD The present invention relates to a carrying structure and carrying system with a lifting function.

BACKGROUND ART Equipment having a lifting function, such as a crane, is sometimes used in road construction such as erection of road slabs. For example, a vehicle-type mobile crane, a stationary bridge crane, or the like can be used.

Japanese Patent Application Laid-Open No. 2007-312807

However, there are environments such as single-lane roads and tunnels in which it is difficult to use a crane or the like as described in Patent Document 1. In other words, there is a demand for a device having a lifting function with less restrictions on the environment in which it is used.

In view of the above circumstances, the present invention provides a transportation structure having a lifting function, which is less restricted by the usage environment in road construction.

SUMMARY OF THE INVENTION According to one aspect of the present invention, a carrying structure having a lifting function is provided. The transport structure includes a base and a lifting mechanism. When the top, bottom, front, rear, left, and right are defined centering on the driver of the vehicle that tows or transports the transportation structure, the base is configured to extend forward and backward so that a transported object can be loaded thereon. It can move forward by being towed or mounted on a vehicle. A lifting mechanism is provided on the base. It comprises a boom, a suspension mechanism and a first displacement mechanism. The boom extends fore and aft. The suspension mechanism is provided on the boom and configured to be able to suspend and lift the object to be transported. The first displacement mechanism is configured to vary the vertical and longitudinal positions of the suspension mechanism while maintaining the horizontal posture of the boom.

According to this aspect, it is possible to further reduce restrictions due to the usage environment in road construction. For example, such transport structures can be used on single-lane roads, in tunnels, and the like.

1 is a front view showing an appearance of a transportation system 1; FIG. 1 is a front view showing an appearance of a transportation system 1; FIG. 2 is a right side view showing the appearance of the transportation system 1. FIG. 2 is a right side view showing the appearance of the transportation system 1. FIG. FIG. 10 is an explanatory diagram showing a mode in which the mounting side of an arm 42 can be selected from left and right; FIG. 2 is a partial enlarged view of FIG. 1, focusing on a cylinder 44 for rotating an arm 42. FIG. 4 is a flow chart showing the flow of a road slab replacement method.

Embodiments of the present invention will be described below with reference to the drawings. Various features shown in the embodiments shown below can be combined with each other.

1. Basic Configuration In this section, the basic configuration of the transportation system 1 according to this embodiment will be described. 1 and 2 are front views showing the appearance of the transportation system 1. FIG. 3 and 4 are right side views showing the appearance of the transport system 1. FIG.

This transportation system 1 is a system having a lifting function. As a basic configuration, the transportation system 1 comprises a vehicle 2 and a transportation structure. Hereinafter, when describing the present embodiment, up, down, front, rear, left, and right are defined centering on the driver of the vehicle 2 that tows or transports the transportation structure. Furthermore, the case where the transport structure is a trailer 3 towed by a vehicle 2 shall be described as an example.

(Vehicle 2)
Vehicle 2 is, for example, a tractor head. With respect to the vehicle 2, a connection 21, wheels 22 and a driver's seat 23 are shown. The connecting portion 21 is provided so as to extend in the front-rear direction behind the vehicle 2 . The connecting portion 21 may have a coupler (not shown), and the vehicle 2 may be connected to the trailer 3 via the coupler (not shown). Once connected, vehicle 2 is configured to tow a trailer 3 .

A plurality of wheels 22 are provided below the vehicle 2 and configured to be in contact with the ground. In FIGS. 1 and 2, wheels 22a, 22b, and 22c visible from the left are shown as the wheels 22 from the front to the rear. Of course, the vehicle 2 is provided with wheels 22 (not shown) symmetrically corresponding to the wheels 22a, 22b, and 22c so as to face the wheels 22a, 22b, and 22c. Such unillustrated wheels 22 are visible from the right side of the vehicle 2 .

When the wheels 22 receive power from an engine (not shown) of the vehicle 2, the wheels 22 are driven, and as a result, the vehicle 2 is configured to move. A driver's seat 23 is provided in front of the vehicle 2 . The driver can move the vehicle 2 together with the trailer 3 to a desired location by getting into the driver's seat 23 and operating, that is, driving the vehicle 2 .

(Trailer 3)
The trailer 3 is towed by being connected to the vehicle 2 via a coupler (not shown). That is, it becomes possible to load the transported object on the trailer 3 and transport the transported object. Moreover, in this embodiment, the trailer 3 has a lifting function. Furthermore, the trailer 3 includes a base 31 , wheels 32 , a lifting mechanism 4 and outriggers 5 .

The base 31 is configured to extend forward and backward so that an object to be transported as the load 6 can be loaded thereon. The objects to be transported as the objects to be lifted 6 are preferably, for example, heavy installation parts for road construction, such as floor slabs. Hereinafter, when explaining the transportation system 1, the object to be transported will be described as a floor slab to be laid on the road, and the transportation and lifting work performed using the transportation system 1 will be the replacement work of the floor slab on the road. described as a thing. In addition, it is an example to the last, and the use of the conveyance system 1 is not restricted to this.

Further, the base 31 has wheels 32 that enable it to move forward when towed by the vehicle 2 . A plurality of wheels 32 are provided below the trailer 3 and configured to be in contact with the ground. In FIGS. 1 and 2, wheels 32a, 32b, and 32c visible from the left side are shown as the wheels 32 from the front to the rear. Also, as shown in FIGS. 3 and 4, the trailer 3 employs a so-called double-tire system in which three wheels 32 are provided in parallel inside wheels 32a, 32b, and 32c. Of course, the trailer 3 is provided with wheels 32 (see FIGS. 3 to 5) symmetrically corresponding to the wheels 32a, 32b, 32c so as to face the wheels 32a, 32b, 32c. The wheels 32 are visible from the right side of the trailer 3, and also employ a double tire system. By adopting such a double-tire system, the load per wheel 32 is dispersed, and the load bearing performance of the trailer 3 can be ensured.

(Lifting mechanism 4)
The lifting mechanism 4 is provided on the base 31 . Specifically, the lifting mechanism 4 includes a frame 40, an arm mounting portion 41, an arm 42, a hinge 43, a cylinder 44, a hinge 45, a boom 46, a suspension mechanism 47, and a laterally extending A portion 48 and a slide mechanism 49 are provided. In particular, a combination of arm 42, hinge 43, cylinder 44, and hinge 45 can constitute an example of the first displacement mechanism. Also, the slide mechanism 49 is an example of a second displacement mechanism.

By the way, the lifting mechanism 4 according to the present embodiment can change the position of the boom 46 extending in the front-rear direction and the suspension mechanism 47 provided at the end of the boom 46 by the first displacement mechanism. More specifically, the first displacement mechanism is configured to vary the vertical and longitudinal positions of the suspension mechanism 47 while maintaining the horizontal posture of the boom 46 . This will be explained in more detail later.

Frame 40 is mounted on base 31 . The frame 40 has left and right arm mounting portions 41 that are paired. The arm mounting portion 41 is a component that rotatably supports the arm 42 via a hinge 43, for example. A through hole (not shown) is provided at the end of the arm 42, and the arm 42 can be attached by inserting the arm attachment portion 41 therethrough. Selective attachment of the arm 42 by the left and right arm attachment portions 41 will be described again.

Arm 42 is configured to support boom 46, which will be described later. In particular, as shown in FIGS. 1 and 2, the arm 42 can be composed of an arm 42f provided in front of the trailer 3 and an arm 42r provided in the rear. By supporting the boom 46 with the pair of front and rear arms 42f and 42r in this way, the horizontal posture of the boom 46 can be maintained without the rotation of the arm 42 via a hinge 43, which will be described later.

Preferably, as shown in FIGS. 3 and 4, the arm 42, which is an example of the first displacement mechanism, is a cantilevered arm that supports the boom 46 from either left or right. In this way, by making the arm 42 a cantilever type, it is possible to widen the limitation on the width of the object to be transported, which is the object 6 to be lifted. In particular, it becomes possible to transport large lifting objects 6 such as road slabs using the transport system 1 .

Moreover, preferably, the arm 42 is configured to be connectable to the frame 40 via the arm attachment portion 41 described above. More preferably, in this embodiment, by selecting one of the left and right sides of the arm mounting portion 41 to which the arm 42 is connected, the side that supports the boom 46 can be changed to the left or right. FIG. 5 is an explanatory diagram showing a mode in which the side on which the arm 42 is attached can be selected from left and right. The left side of FIG. 5 shows an aspect in which the arm 42 is attached to the frame 40 via the left arm attachment portion 41L. The right side of FIG. 5 shows a mode in which the arm 42 is attached to the frame 40 via the right arm attachment portion 41R.

As described above, since the arm 42 is a cantilever type arm, by allowing selection of the right or left side to which the arm 42 is attached, it is possible to secure a space on the preferred side during work. I will add the following about this. For example, in Japan, left-hand traffic is adopted. Consider the work of replacing the road slab with two lanes on each side, which consists of the driving lane located on the left side and the overtaking lane located on the right side when viewed in the direction of travel.

When carrying out work to replace the floor slab of the driving lane, which is the left lane, it is preferable to attach the arm 42 to the right side. According to this aspect, the space on the left side of the arm 42 can be used as a space for passing a load to be lifted (also called a suspended load, which corresponds to a floor slab here), and the right lane can be used. It is possible to ensure the safety of passing vehicles.

Similarly, when the floor slab of the overtaking lane, which is the right lane, is to be replaced, it is preferable to attach the arm 42 to the left side. According to this aspect, the space on the right side of the arm 42 can be used as a space for the suspended load to pass through, and the safety of vehicles traveling in the left lane can be ensured. Furthermore, the space on the opposite side of the traffic lane can also be used as a space for passing suspended cargo. In other words, it should be noted that it is possible to carry out construction work under single-lane regulations.

The hinge 43 connects the frame 40 and the arm 42 via the arm attachment portion 41 . Arm 42 is configured to be rotatable with hinge 43 as a fulcrum or pivot. In other words, the arm 42, which is an example of the first displacement mechanism, is rotatable on a plane P defined by up and down and front and back about the hinge 43, which is a support shaft on the base 31. As shown in FIG. That is, in this embodiment, the vertical and longitudinal positions of the suspending mechanism 47 are determined by the angle θ formed by the base 31 and the arm 42 . The value of θ is, for example, 0 to 180 degrees, preferably 10 to 120 degrees, more preferably 20 to 90 degrees, specifically for example, 0, 5, 10, 15, 20. , 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, 100, 105, 110, 115, 120, 125, 130, 135, 140, 145 , 150, 155, 160, 165, 170, 175, 180 degrees, and may be in the range between any two of the values exemplified herein.

For example, FIG. 1 shows a state where θ is about 30 degrees, and the boom 46 is supported in a forward and downward state. In particular, when the transportation system 1 is traveling on a road, there is a possibility that it will pass through places with height restrictions such as tunnels. is preferred. In addition, since it is not necessary to secure a working radius while traveling, as shown in FIG. good. In this way, it is preferable that the height of the transport system 1 is lower than the predetermined height stipulated by the Road Traffic Law or the like in a state where the value of θ is small.

Further, for example, FIG. 2 shows a state where θ is approximately 90 degrees, and the boom 46 is supported in a state of being leaned rearward and upward. In particular, when the transportation system 1 uses its lifting function to carry out road construction, it is necessary to secure a height for lifting. It is preferred that the height of 46 be increased. In addition, as compared with the case shown in FIG. 1, the boom 46 is positioned at the rear side, so that a working radius can be secured.

That is, it is possible to adjust both the height of the boom 46 and the working radius of the suspension mechanism 47 only by rotating the arm 42, and the lifting mechanism 4 with high adjustment efficiency can be realized.

Also, in order to rotate the arm 42, for example, a cylinder 44 such as a hydraulic cylinder, a robot cylinder, or an air cylinder configured to push and pull the arm 42 may be used. FIG. 6 is a partial enlarged view of FIG. 1, focusing on the cylinder 44 for rotating the arm 42. As shown in FIG. The cylinder 44 is provided on the frame 40 and configured to extend and contract the rod portion 441 . One end of the rod portion 441 is connected via a hinge 442 to the front arm 42f. 1 or 6, the cylinder 44 contracts the rod portion 441 in the direction A in FIG. 6, thereby pulling the arm 42f and increasing the angle θ. Further, since the arm 42f and the arm 42r support the boom 46, the movement of the arm 42f is transmitted to the arm 42r via the boom 46, and the tilt angle θ of the arm 42r becomes the tilt angle θ of the arm 42f. should be synchronized to That is, by fixing the arm 42 and the boom 46 by pin joint, bolt joint, or the like, the vertical and longitudinal positions of the boom 46 can be changed by driving the cylinder 44 .

The hinge 45 connects the arm 42 and the laterally extending portion 48 . By interposing the hinge 45, the laterally extending portion 48 can be rotated without rotating the laterally extending portion 48 whose rotation axis is the front-rear direction associated with the angle θ.

As shown in FIGS. 3 and 4 , the boom 46 is provided so as to be suspended from the laterally extending portion 48 via the slide mechanism 49 . The slide mechanism 49 is configured to be able to move the left-right extension portion 48 in the left-right direction together with the boom 46 . Although FIGS. 3 and 4 show the left-right extension 48 and slide mechanism 49 connected to the rear arm 42r, the front arm 42f may also have the same configuration. In other words, the slide mechanism 49 , which is an example of the second displacement mechanism, is configured to change the left and right positions of the suspension mechanism 47 . More specifically, the slide mechanism 49, which is an example of the second displacement mechanism, changes the orientation of the boom 46 on a plane Q (not shown) defined by front, rear, left, and right, thereby causing the suspension mechanism 47 to move. It is configured to vary the left and right positions of the . With such a configuration, it is possible to adjust the position of the boom 46 in the left-right direction and finely adjust the orientation of the boom 46 on the plane Q defined by the front and back and left and right. Setting and adjustment of working radius can be realized. At this time, the arm 42 and the boom 46 are unfixed by pin connection, bolt connection, or the like, so that the lateral position of the boom 46 can be changed by driving the cylinder 44 .

The suspension mechanism 47 is provided, for example, at the rear end of the boom 46, and is configured to be able to suspend and lift the load 6, which is the transported object. The mechanism of the suspension mechanism 47 is not particularly limited, and includes a trolley 471, a wire rope 472, and a spreader 473, for example. For example, the trolley 471 includes a drum (not shown) that rotates forward and backward by a drum drive motor, and is configured to suspend a spreader 473 for suspending the load 6 via a wire rope 472 that is wound around the drum. I wish I could. By rotating the drum of the trolley 471 forward and backward, the spreader 473 is configured to be able to move up and down.

(Outrigger 5)
The outriggers 5 are provided on the frame 40 of the lifting mechanism 4 and configured to be in contact with the ground. Since the outriggers 5 are in contact with the ground, the stability of the transportation system 1 can be ensured during the lifting operation using the lifting mechanism 4 . By the way, unlike the outriggers 5, ordinary outriggers protrude from the vehicle body in the lateral direction to ensure stability. have a structure. According to such a configuration, since the outriggers 5 do not protrude into the oncoming lane, desired road construction such as replacement of floor slabs can be carried out simply by regulating the lane on which road construction is to be performed.

More preferably, as shown in FIGS. 1 and 2, the outriggers 5 are a pair of outriggers 5f and 5r arranged in the front and rear. In other words, it should be noted that the outrigger 5 adopts a structure in which the left and right are integrated, unlike a general outrigger that is divided into left and right. According to this aspect, it is possible to transmit the reaction force of the outriggers 5 directly to the main girder under the floor slab, eliminating the need to prepare extra laying material.

Also, as shown in FIGS. 3 to 5, the pair of outriggers 5 preferably includes two legs 53 and two beams 54, respectively. Here, one girder 54 is associated with the two legs 53, ie, a leg 53L and a leg 53R. The two legs 53L and 53R are arranged on the left and right and connected to one girder 54. As shown in FIG. The leg portion 53 makes the vertical position of the girder portion 54 variable so that the girder portion 54 is in contact with the ground. For example, the leg portion 53L and the leg portion 53R may have a jack structure.

By extending the leg 53L and the leg 53R having a jack structure from the state shown in FIG. can be made It should be noted that, during construction work, the floor slabs are replaced while the transportation system 1 is positioned on the corresponding lane, so stability against loads in the front-rear direction is particularly important. That is, with such a configuration, the stability and safety of the transportation system 1 can be sufficiently ensured while limiting the usage environment.

2. Floor slab replacement method using transport system 1 In this paper, a road slab replacement method using the transport system 1 described above will be described. FIG. 7 is a flow chart showing the flow of the road slab replacement method. The steps shown in FIG. 7 will be described below.

First, traffic is regulated at the construction site, specifically the lane on the road including the old floor slab to be removed (step S001). At this time, it is preferable not to restrict traffic in adjacent lanes.

Subsequently, the transportation system 1 with the new floor slab to be installed mounted on the base 31 is dispatched from the factory producing the new floor slab to the construction site (step S002). At this time, it is preferable to make the arm 42 tilt at a small angle θ.

Subsequently, the tilting angle θ of the arm 42 is varied to secure the height and working radius of the suspension mechanism 47 in accordance with the old floor slab (step S003). At this time, the position of the suspension mechanism 47 may be finely adjusted by controlling the lateral position or orientation of the arm 42 .

Subsequently, the hanging mechanism 47 is raised and lowered to hang the old floor slab on the spreader 473, remove it from the road by lifting, and load the old floor slab on the base 31 (step S004). At this time, it is preferable to prevent physical interference with the already loaded new floor slabs.

Subsequently, the tilting angle θ of the arm 42 is again varied to secure the height and working radius of the suspension mechanism 47 in accordance with the new floor slab (step S005). At this time, the position of the suspension mechanism 47 may be finely adjusted by controlling the lateral position or orientation of the arm 42 .

Subsequently, the suspension mechanism 47 is lifted and lowered to hang the new floor slab on the spreader 473, and the new floor slab is lifted from the base 31 to the vicinity of the desired installation location, and the new floor slab is attached to the installation location (step S006).

Finally, the transportation system 1 with the removed old floor slabs loaded on the base 31 is returned from the construction site to the factory (step S007).

By repeating the above steps S002 to S007 during a time period when construction is possible, for example, late at night, it is preferable to replace a plurality of old floor slabs with new floor slabs while suppressing lane restrictions. Finally, the traffic regulation is lifted and the construction work for the day ends (step S008).

According to this method, the lifting, loading, and transportation of the old floor slabs to be removed and the transportation, lifting, and attaching of the new floor slabs to be newly installed can be carried out using one transportation system 1. Work efficiency is greatly improved compared to the conventional method of installing a bridge crane and using a transport vehicle separately. In addition, since the arm 42 is a cantilever arm and its left and right positions are variable, it is possible to secure a space on the desired side and maintain high workability. Furthermore, since the outriggers 5 do not protrude in the lateral direction, construction work can be carried out only by restricting the desired lane for a limited period of time without restricting adjacent lanes, thereby reducing restrictions due to the usage environment. becomes possible.

3. Others The transportation system 1 according to this embodiment may be implemented in the following aspects.

(1) In the present embodiment, the rod portion 441 of the cylinder 44 is connected to the arm 42f to make the tilt angle θ of the arm 42f variable. The tilting angle θ may be variable. Alternatively, by adopting two cylinders 44 and synchronizing the expansion and contraction operations of the two cylinders 44, each angle θ may be made variable.

(2) A jack, a speed reducer, or the like may be used instead of the cylinder 44 to rotate the arm 42 .

(3) Instead of the slide mechanism 49, a turning mechanism (not shown) may be provided for turning the boom 46 on a plane Q defined by front, rear, left, and right. The position of the suspension mechanism 47 can be adjusted also by such an aspect.

(4) The trailer 3 is merely an example of a transportation structure, and may alternatively be implemented as a truck bed, for example. That is, a truck (not shown) corresponding to the vehicle 2 may be configured to transport a loading platform, which is an example of the transportation structure.

(5) A transportation system 1 may be provided in which a vehicle 2 and a trailer 3, which is an example of a transportation structure, are integrated.

Furthermore, it may be provided in each aspect described below.
In the carrying structure, the first displacement mechanism comprises an arm, and the arm is a cantilevered arm that supports the boom from either left or right.
In the transport structure, the lifting mechanism further includes a frame, the frame is mounted on the base, and includes left and right paired arm mounting portions, and the arms are connected via the arm mounting portions. and is configured to be connectable to the frame, and configured to be able to change the side supporting the boom to the left or right by selecting one of the left and right of the arm mounting portion to which the arm is connected.
In the transport structure, the first displacement mechanism has an arm, the arm is configured to be rotatable on a plane defined by up and down and front and back about a support shaft on the base. An angle formed by the base and the arm determines the vertical and longitudinal positions of the suspension mechanism.
In the transport structure, the lifting mechanism further includes a second displacement mechanism, and the second displacement mechanism is configured to vary the lateral position of the suspension mechanism.
In the transport structure, the second displacement mechanism is configured to change the orientation of the boom on a plane defined by the front, rear, left, and right, thereby varying the left and right positions of the suspension mechanism. ru, thing.
The carrying structure further comprising outriggers, wherein the outriggers have non-protruding structures on the left and right sides of the base and are configured to be in contact with the ground.
In the carrying structure, the outriggers are a pair of outriggers arranged in the front and rear, the pair of outriggers each having a leg and a girder in a two-to-one relationship, and the two legs are: The girders are arranged on the left and right, are connected to one of the girders, and are variable in vertical position so that the girders are grounded on the ground.
The carrying structure, wherein the carrying structure is a trailer or truck bed.
A carriage system with lifting capabilities, comprising a carriage structure and a vehicle, wherein the carriage structure is the carriage structure, the vehicle configured to tow or carry the carriage structure. be done, thing.
Of course, this is not the only case.

Finally, while various embodiments of the invention have been described, these have been presented by way of example and are not intended to limit the scope of the invention. The novel embodiment can be embodied in various other forms, and various omissions, replacements, and modifications can be made without departing from the scope of the invention. The embodiment and its modifications are included in the scope and gist of the invention, and are included in the scope of the invention described in the claims and equivalents thereof.

Reference Signs List 1 : Transport system 2 : Vehicle 3 : Trailer 31 : Base 4 : Lifting mechanism 40 : Frame 41 : Arm mounting portion 42 : Arm 46 : Boom 47 : Hanging mechanism 49 : Slide mechanism 5 : Outrigger 53 : Leg 54 : Girder 6 : Lifted object

Claims (10)

A transport structure having a lifting function,
Equipped with a base and a lifting mechanism,
Defining up, down, front, rear, left, and right around the driver of the vehicle that tows or transports the transport structure,
The base is
By extending back and forth, it is configured to be able to load a transported object on it,
By being towed or mounted on the vehicle, it is possible to move forward,
The lifting mechanism is
provided on the base,
A boom, a suspension mechanism, and a first displacement mechanism,
The boom extends back and forth,
The suspension mechanism is provided on the boom and is configured to be able to lift by suspending the transported object,
The first displacement mechanism is configured to vary the vertical and longitudinal positions of the suspension mechanism while maintaining the horizontal posture of the boom. A carrying structure according to claim 1, wherein
the first displacement mechanism comprises an arm,
The arm is a cantilevered arm that supports the boom from either left or right. A carrying structure according to claim 2, wherein
The lifting mechanism further comprises a frame,
The frame is
mounted on the base,
Equipped with a pair of arm mounting parts on the left and right,
The arm is
configured to be connectable to the frame via the arm mounting portion,
The side supporting the boom can be changed to left or right by selecting one of the right and left sides of the arm mounting portion to which the arm is connected. In the carrying structure according to any one of claims 1 to 3,
the first displacement mechanism comprises an arm,
The arm is configured to be rotatable on a plane defined by up and down and front and back about a support shaft on the base,
The angle formed by the base and the arm determines the vertical and longitudinal positions of the suspension mechanism. In the carrying structure according to any one of claims 1 to 4,
The lifting mechanism further comprises a second displacement mechanism,
The second displacement mechanism is configured to vary the lateral position of the suspension mechanism. A carrying structure according to claim 5, wherein
The second displacement mechanism is configured to change the orientation of the boom on a plane defined by front, rear, left, and right, thereby varying the left and right positions of the suspension mechanism. In the carrying structure according to any one of claims 1 to 6,
Equipped with outriggers,
The outrigger is
Having a non-protruding structure on the left and right sides of the base,
Something that is configured to be grounded with the ground. A carrying structure according to claim 7, wherein
The outriggers are a pair of outriggers arranged in the front and rear,
The pair of outriggers includes a leg portion and a girder portion in a ratio of 2 to 1,
The two legs are
arranged on the left and right and connected to one girder,
The upper and lower positions of the girder are variable so that the girder is in contact with the ground. In the carrying structure according to any one of claims 1 to 8,
The transport structure is a trailer or truck bed. A transport system having a lifting function,
comprising a transportation structure and a vehicle;
The carrying structure is the carrying structure according to any one of claims 1 to 9,
The vehicle is configured to tow or carry the transport structure.

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