WO2011102282A1

WO2011102282A1 - Heavy load conveyance system and heavy load conveyance method

Info

Publication number: WO2011102282A1
Application number: PCT/JP2011/052816
Authority: WO
Inventors: 公良安部; 喜彦飯塚; 善之助坂内
Original assignee: 住友金属物流株式会社
Priority date: 2010-02-17
Filing date: 2011-02-10
Publication date: 2011-08-25
Also published as: JP2011168355A

Abstract

A container (10) is mounted on the front of a chassis (9) connected to a tractor (8), and a heavy load conveyance device (11) is placed on the rear of the chassis (9). A pallet (13), which is stored within the container (10) and carries a steel sheet coil (12), and a travel body (18) of the heavy load conveyance device (11) are connected by a wire, etc., and the steel sheet coil (12) is pulled out toward the heavy load conveyance device (11). Repeating the pulling and advancing of the travel body (18) by adjusting the connection wire enables the steel sheet coil (12) to be pulled out onto the heavy load conveyance device (11) regardless of at which position of the container (10) the steel sheet coil (12) is located. The steel sheet coil (12) pulled out onto the heavy load conveyance device (11) is unloaded using a crane (14), etc. possessed by an end user, and the carry-in of the steel sheet coil (12) is completed.

Description

Heavy material conveyance system and heavy material conveyance method

The present invention relates to a heavy material transport system and a heavy material transport method, and in particular, a heavy material transport system when carrying out a heavy material stored from a container mounted on a chassis or carrying a heavy material into a container. And a heavy article conveying method.

Currently, it is common to store heavy objects such as steel plate coils in containers and transport them by loading them on trailers or trains.

This ensures the quality of the steel plate coil and the like, and increases transportation safety.

The conventional heavy goods as described above are finally delivered to the end user who is the user and used.

However, it is common for the end user not to have a facility for handling a 20-foot container (total weight of up to 30.48 tons) carrying a steel plate coil or the like. For this reason, containers that have been imported by container ships are landed in the container yard of the port and then brought to a logistics specialist. Then, the stored heavy load is unloaded from the container, transferred to a cargo trailer for general cargo, transferred to the end user, and then carried to the end user.

In this way of transportation, there is a possibility that damage such as wetness may occur on heavy objects when it is pulled out from the container and reloaded onto the trailer. Moreover, it cannot be said that it is a preferable method from the time and cost required for transshipment.

This problem also occurs when heavy goods are shipped from the factory and transported in containers because they need to be reloaded into a trailer.

The present invention has been made to solve the above-described problems, and provides an efficient and cost-effective heavy goods transport system and a heavy goods transport method that eliminate the need to reload heavy goods on a trailer. For the purpose.

In order to achieve the above object, a heavy goods transport system according to a first aspect of the present invention is a heavy goods transport system, which is mounted on a chassis pulled by a tractor and a part of the chassis, and is internally A container capable of storing heavy objects, and a heavy-weight conveying device mounted on the other part of the chassis and capable of carrying heavy objects out of or into the container. Is.

When configured in this manner, heavy objects are carried out of the container on the chassis or carried into the container.

According to a second aspect of the present invention, there is provided a heavy-duty conveyance system according to the first aspect, wherein the height of the heavy-duty conveyance device is aligned with the height of the floor of the container, and the heavy-duty conveyance device is the heavy-duty conveyance device. It is drawn on top of.

This configuration makes it possible to draw heavy objects smoothly and eliminates the need for extra space for drawing.

According to a third aspect of the present invention, there is provided a heavy-duty conveying system according to the first aspect or the second aspect of the present invention, wherein the heavy-weight conveying device is reciprocated by pulling and feeding in a direction parallel to the longitudinal direction of the container. It includes a traveling body that performs.

Structuring in this way, the reciprocating motion of the traveling body is repeated according to the length of the heavy load.

According to a fourth aspect of the present invention, in the heavy-duty conveying system according to the third aspect of the present invention, the force required for towing the heavy object in the heavy-weight conveying apparatus is smaller than the force required for directly pulling the heavy object. Is.

Such a configuration can reduce the driving force required for the heavy-duty conveying device.

A heavy material transport method according to a fifth aspect of the present invention is a heavy material transport method, the step of mounting a heavy material transport container and a heavy material transport device on a chassis connected to a tractor, and a chassis. A step of transferring to a desired place by a tractor, a step of unloading a heavy object from a container using a heavy material transfer device on the transferred chassis, and a step of unloading the unloaded heavy object. Is.

構成 With this configuration, heavy objects are directly transferred to the delivery location by a tractor.

The heavy material transport method according to a sixth aspect of the present invention is a heavy material transport method, a step of mounting a container and a heavy material transport device on a chassis connected to a tractor, and a heavy material transport device. A step of unloading the vehicle, a step of loading a heavy object into the container using a heavy material transfer device on the chassis, and a step of transferring the chassis to a desired place by a tractor.

When configured in this way, heavy objects are carried into the container on the chassis.

As described above, in the heavy article transport system according to the first aspect of the present invention, since the heavy article is carried out of the container or carried into the container on the chassis, the delivery of the heavy article is efficient. The cost of transporting heavy objects is reduced.

In addition to the effects of the invention of the first aspect, the heavy article transport system according to the second aspect of the present invention makes it possible to smoothly pull out heavy objects and eliminates the need for extra space for the drawer. The space above can be used effectively.

In addition to the effects of the invention in the first aspect or the second aspect, the heavy article transport system in the third aspect of the invention repeats the reciprocating motion of the traveling body in accordance with the length of the heavy article to be drawn. It can be pulled out regardless of the position of the heavy object stored in the container.

In addition to the effects of the invention in the third aspect, the heavy article conveyance system in the fourth aspect of the present invention can reduce the driving force required for the heavy article conveyance device, so that the heavy article conveyance device becomes compact.

In the heavy material transport method according to the fifth aspect of the present invention, since the heavy material is directly transferred to the delivery place by the tractor, it is not necessary to reload the heavy material on the way, which is advantageous in terms of cost and safety.

The heavy material transport method according to the sixth aspect of the present invention is advantageous in terms of cost and safety because the heavy material is carried into the container on the chassis, so that it is not necessary to reload the heavy material on the way.

BRIEF DESCRIPTION OF THE DRAWINGS It is the figure which showed schematic structure of the heavy article conveyance system by 1st Embodiment of this invention. It is the top view which represented typically the conveyance mechanism of the heavy article conveyance apparatus shown in FIG. It is the top view which showed schematic structure of the heavy article conveying apparatus shown in FIG. FIG. 4 is a sectional view taken along line IV-IV in FIG. 3. It is the schematic which showed the transfer state of the tractor in the heavy article conveyance system shown in FIG. It is the schematic which showed the transfer state of the tractor in the heavy article conveyance system by 2nd Embodiment of this invention.

FIG. 1 is a diagram showing a schematic configuration of a heavy article transport system according to a first embodiment of the present invention.

Referring to the figure, a container 10 is mounted on the front part of a chassis 9 (which constitutes a part of the trailer) connected to the tractor 8, and a heavy material transport device 11 is installed on the rear part thereof. Yes. The heavy article transport device 11 has a flat shape, and its height is set so as to be substantially aligned with the floor surface of the container 10 when installed on the chassis 9.

The details and operating principle of the heavy material transport device 11 will be described later, but it has a function of pulling heavy materials in the horizontal direction.

First, when the container 10 and the heavy material transport device 11 are integrally transferred to the end user by the tractor 8, the support pole 6 is grounded to the ground 7 and the chassis 9 is stopped.

Next, a connection is made between the pallet 13 of the steel sheet coil 12 stored in the container 10 and a traveling body (not shown, which will be described later) of the heavy material transport device 11 by a wire or the like. By moving the traveling body in the pulling direction, the steel plate coil 12 is pulled out (pulled) in the direction of the heavy article transport device 11. If the steel plate coil 12 cannot be pulled out of the container 10 with a single stroke of the traveling body, the weight of the steel sheet coil 12 can be adjusted regardless of the position of the container 10 by adjusting the connecting wire and repeating the pulling and feeding of the traveling body. It can be pulled out onto the article transport device 11.

The steel plate coil 12 drawn out on the heavy material transport device 11 is lifted using a crane 14 or the like held by the end user and moved to a desired location, whereby the loading of the steel plate coil 12 is completed.

As described above, since the container 10 and the heavy material transport device 11 are integrally transported by the tractor 8, it is possible to directly unload the end user without having to reload heavy materials, which is advantageous in terms of cost and safety. It becomes a heavy goods conveyance system.

FIG. 2 is a diagram schematically showing the transport mechanism of the heavy-duty transport device shown in FIG. 1, in which (1) shows the case where the heavy object is towed by the traveling body, and (2) is the start of towing. The case where a traveling body is extended to a position is shown.

Referring to the drawing, the transport mechanism 15 includes a first movable pulley 20 attached to a traveling body 18 that is movable in the longitudinal direction of the frame body 40 (left and right in the figure), a capstan type rotary drum 38, and the like. It is structured around. The traveling body 18 pulls the heavy object by moving the traveling object 18 by connecting a wire or the like to the heavy object.

By the way, in the figure, the wire 26 from the left side of the traveling body 18 (towing direction) to the rotating drum 38 is represented as a first wire portion 27 in the drawing, and from the right side (feeding direction) of the traveling body 18 to the rotating drum 38. The first wire portion 27 and the second wire portion 28 are integrally connected as a single wire 26 via a rotary drum 38.

The first wire portion 27 whose one end is fixed to one end of the traveling body 18 is engaged with the first constant pulley 30 fixed to the frame body 40 and then attached to the traveling body 18. Engage with pulley 20. Further, the first wire portion 27 engaged with the first movable pulley 20 is connected to the rotary drum 38 fixed to the frame body 40 after engaging the second constant pulley 31 fixed to the frame body 40. The

On the other hand, the second wire portion 28 extending from the rotating drum 38 after the first wire portion 27 is wound by a predetermined number is engaged with the third constant pulley 32 and the fourth constant pulley 33 fixed to the frame body 40. Then, it engages with the second movable pulley 21 attached to the balance unit 23. The second wire portion 28 engaged with the second movable pulley 21 is connected to the other end of the traveling body 18 after engaging with the fifth constant pulley 34 and the sixth constant pulley 35 fixed to the frame body 40. The In addition, between the balance unit 23 and the frame body 40, there is a spring balancer 24 that can be expanded and contracted and is urged to the left in the drawing (the direction opposite to the moving direction generated when the second wire portion 28 is wound). It is connected.

Next, the operation of the transport mechanism 15 will be described.

First, with reference to (1) of FIG. 1, the operation | movement at the time of the pulling which draws a heavy load is demonstrated.

When moving the traveling body 18 leftward in the figure, the rotating drum 38 is rotated clockwise as indicated by an arrow in the figure. Then, the first wire portion 27 is wound up by the rotary drum 38, and the distance to the end fixed to one end of the traveling body 18 is gradually shortened. As a result, the first movable pulley 20 moves to the left in the figure while rotating counterclockwise. As a result, the traveling body 18 moves to the left.

On the other hand, the second wire portion 28 is fed out by the amount wound (pulled) by the rotary drum 38. That is, the change in the length of the first wire portion 27 via the rotary drum 38 and the change in the length of the second wire portion 28 are the same if the wire 26 does not extend.

Specifically, it is assumed that the second wire portion 28 is fed and moved from the position P1 to the position P2 by the distance L. In this case, the first wire portion 27 is also wound by the distance L. Since the first wire portion 27 is engaged with the traveling body 18 as three wires, the traveling body 18 moves in the pulling direction by a distance of L / 3. At this time, the second wire portion 28 connected to the traveling body 18 also moves in the pulling direction by a distance of L / 3. Therefore, the second wire portion 28 is left by a length of 2L / 3. If this is left as it is, the second wire portion 28 is loosened with respect to the rotary drum 38, and the first wire portion 27 cannot be sufficiently wound.

Therefore, in order to absorb the surplus portion of the second wire portion 28, a balance unit 23 is provided as a wire length adjusting means. Since the spring balancer 24 is urged to the left side in the drawing by the balance unit 23, the balance unit 23 moves to the left side together with the second movable pulley 21 engaged with the second wire portion 28 when surplus occurs in the second wire portion 28. Then, the slack of the second wire portion 28 is immediately absorbed. At this time, the slack of the second wire portion 28 is absorbed by the double distance by the moving distance of the second movable pulley 21. Then, the balance unit 23 moves to the left side by L / 3 in order to absorb the length of 2L / 3. Since this moving distance is the same as the moving distance of the traveling body 18, if the traveling body 18 and the balance unit 23 are arranged in parallel with the start and end points of the movement, they move in parallel at the same speed. Will do.

As described above, since the moving distance of the first wire portion 27 and the moving distance of the second wire portion 28 in the traveling body 18 coincide with each other, the wire 26 does not loosen in the rotating drum 38 and the traveling body 18 moves smoothly in the left direction. To do. In this case, the first wire portion 27 that works to move the traveling body 18 to the left side is fixed to the traveling body 18 at one end thereof via the first moving pulley 20 and the first fixed pulley 30, and the other end thereof. Since it is wound around the rotary drum 38, the force generated in the first wire portion 27 is approximately one third of the force required to move the traveling body 18 directly to the left side. In this way, the traveling body 18 can be stably moved in the left direction with a small force.

Next, with reference to (2) of FIG. 1, the operation | movement at the time of the preparation prepared in order to draw a heavy article is demonstrated.

When moving the traveling body 18 to the right in the figure, the rotary drum 38 is rotated counterclockwise as indicated by the arrow in the figure. Then, the second wire portion 28 is taken up by the rotary drum 38, and the distance to the end fixed to the other end of the traveling body 18 is gradually shortened. As a result, the traveling body 18 moves to the right (feeding direction) in the drawing.

On the other hand, the first wire portion 27 is fed out by the amount wound (drawn out) by the rotary drum 38. In other words, the change in the length of the second wire portion 28 via the rotating drum 38 and the change in the length of the first wire portion 27 are the same if the wire 26 does not extend.

Specifically, it is assumed that the second wire portion 28 is wound up and moved from the position P1 to the position P2 by the distance L. In this case, the first wire portion 27 is also fed out by the distance L. Since the first wire portion 27 is engaged with the traveling body 18 as three wires, the traveling body 18 moves in the feeding direction by a distance of L / 3. Then, at this time, the second wire portion 28 connected to the traveling body 18 moves only in the traction direction by a distance of L / 3. As a result, the rotating drum 38 winds up the second wire portion 28 by a length of 2L / 3, and the winding balance of the rotating drum 38 is lost. If this is left unattended, the traveling body 18 cannot move in the feeding direction.

Therefore, in order to adjust the unbalance of the winding of the second wire portion 28, a balance unit 23 is provided. Since only the spring balancer 24 is connected to the balance unit 23 in a telescopic manner, the balance unit 23 moves to the right in the drawing in accordance with the winding speed of the second wire portion 28. In this case, since the winding distance of the second wire portion 28 is extra by 2L / 3, the balance unit 23 moves to the right by L / 3. Since this moving distance is the same as the moving distance of the traveling body 18, if the traveling body 18 and the balance unit 23 are arranged in parallel with the start and end points of the movement, they move in parallel at the same speed. Will do.

As described above, the movement distance of the first wire portion 27 and the movement distance of the second wire portion 28 before and after the rotary drum 38 coincide with each other by the action of the balance unit 23, so that the winding of the wire 26 on the rotary drum 38 is hindered. The traveling body 18 smoothly moves to the right. In this case, since no load is applied to the second wire portion 28 that works to move the traveling body 18 to the right, the time required for feeding can be shortened by increasing the rotational speed of the rotary drum 38.

FIG. 3 is a plan view showing a schematic structure of the heavy-duty conveying apparatus shown in FIG. 1, and FIG. 4 is a sectional view taken along line IV-IV in FIG.

Referring to these drawings, the heavy article transport device 11 is configured by installing a traveling body 18 that is movable in the horizontal direction (longitudinal direction) in the figure on a frame body 40 in which I-shaped steel or the like is combined in a cross beam shape. It is structured as a center. In addition, the code | symbol described in the figure is the same as that shown in FIG. 1, or it respond | corresponds to them.

The traveling body 18 is installed so as to be movable in the longitudinal direction between the first frame 44a and the first frame 44b arranged in parallel at a predetermined interval. The balance unit 23 is engaged with a second frame 45 that is arranged in parallel with the traveling body 18 in the longitudinal direction and has a long hole 47 formed in the center thereof, and is installed to be movable in the longitudinal direction. A second movable pulley 21 is attached to the balance unit 23, and a second wire portion 28 connected to the other end of the traveling body 18 is engaged therewith. Further, a wire 46 is connected to the balance unit 23, and an end thereof is connected to a spring balancer 24 attached to the frame body 40. As a result, the balance unit 23 is always urged leftward in the drawing.

On the other hand, the first wire portion 27 connected to one end of the traveling body 18 is engaged with the first fixed pulley 30 and then the first moving pulley 20 of the traveling body 18. Then, after engaging with the second constant pulleys 31 a and 31 b, it is wound around a rotary drum 38 attached to the frame body 40. The second wire portion 28 wound around the rotary drum 38 engages with the second movable pulley 21 of the balance unit 23 after engaging with the third constant pulley 32 a and the fourth constant pulley 33. The second wire portion 28 is connected to the traveling body 18 after engaging with the fifth constant pulley 34.

In the figure, the arrow A direction indicates the pulling direction of the traveling body 18, and the arrow B direction indicates the feeding direction of the traveling body 18. Then, as shown in the figure, these are arranged in parallel so that the starting point and end point of movement of the traveling body 18 and the starting point and end point of movement of the balance unit 23 correspond to each other. In addition, since the strokes have the same length as described above, the traveling body 18 can be operated using the longitudinal direction of the frame body 40 to the maximum extent. Even when the length is long, efficient conveyance becomes possible.

FIG. 5 is a schematic view showing the state of transfer of the tractor in the heavy material transport system shown in FIG.

Referring to the figure, the tractor 8 is running on the ground 7 by pulling the chassis 9 while accommodating the support pole 6. A container 10 is mounted on the front portion on the chassis 9, and the heavy article transport device 11 is mounted on the rear portion of the container 10 with a distance L from the container 10. This distance L takes into account the space required to open and close the open / close door 57 of the container 10.

In this state, when the tractor 8 travels to a desired location, the support pole 6 is grounded and stopped. Then, after the opening / closing door 57 is opened, when the heavy article transport device 11 is moved so as to contact the container 10, the state shown in FIG. 1 is obtained.

When the unloading of the steel plate coil 12 is completed as described above, the heavy article transport device 11 is moved to the position shown in the figure, and the open / close door 57 is closed. Then, the support pole 6 may be accommodated and the tractor 8 may travel with the chassis 9.

FIG. 6 is a schematic view showing the state of transfer of the tractor in the heavy goods transport system according to the second embodiment of the present invention, and corresponds to the embodiment of FIG.

Referring to the drawing, it is basically the same as that of the embodiment of FIG.

First, in this embodiment, the point that the container 10 is mounted on the rear part on the chassis 9 with the opening / closing door 57 positioned forward is largely different. Accordingly, the heavy article transport device 11 is mounted on the front portion of the chassis 10 at a distance L from the container 10.

When the steel plate coil 12 is carried out, the opening / closing door 57 is opened and the heavy article transport device 11 is moved so as to be in contact with the container 10. In this state, the steel plate coil 12 is pulled out from the container 10 onto the heavy load transport device 11 using the heavy load transport device 11 as in the previous embodiment. After that, after unloading the steel plate coil 12 as in the previous embodiment, the heavy article transport device 11 is returned to its original position, and the tractor 8 is allowed to travel with the chassis 9. Even in this embodiment, the same effects as those of the heavy article transport system according to the previous embodiment can be obtained.

In each of the above-described embodiments, the heavy material carry-out operation is mentioned. However, the heavy material transfer device 11 can be used in the same manner for the carry-in operation. In this case, the heavy material transport device 11 is installed in the reverse direction, and the pallet 13 of the steel plate coil 12 loaded on the heavy material transport device 11 is pushed into the container 10 with a connecting rod or the like attached to the traveling body 18. The traveling body 18 may be operated. As a result, the carrying-in operation can be performed only on the chassis 9 with the heavy article transporting device 11, which is an efficient carrying-in operation.

In each of the above-described embodiments, the heavy material transport device 11 is configured to reduce the force required for towing, but a heavy material transport device that is not necessarily configured may be used. Moreover, you may comprise so that it may operate | move with the same mitigation force at the time of towing and at the time of taking out.

As described above, the heavy article transport system and the heavy article transport method according to the present invention, for example, remove a heavy article from a container mounted on a chassis or carry a heavy article into a container. It is suitable for transportation.

Claims

A heavy goods transport system,
A chassis (9) towed by a tractor (8);
A container (10) mounted on a part of the chassis and capable of storing a heavy object (12) therein;
A heavy goods transport system comprising a heavy goods transport device (11) mounted on another part of the chassis and capable of transporting the heavy goods from the container or carrying it into the container. .
The height of the heavy goods transport device is aligned with the floor height of the container,
The heavy goods conveyance system according to claim 1 with which said heavy goods are pulled out on said heavy goods conveyance device.
3. The heavy material transport system according to claim 1, wherein the heavy material transport device includes a traveling body (18) that reciprocates by pulling and feeding in a direction parallel to a longitudinal direction of the container.
The heavy material conveyance system according to claim 3, wherein a force required to pull the heavy material in the heavy material conveyance device is smaller than a force required to directly pull the heavy material.
A heavy material transport method,
Mounting a container (10) storing a heavy article (12) on a chassis (9) connected to a tractor (8) and a heavy article transport device (11);
Transferring the chassis to a desired location with the tractor;
On the transferred chassis, the step of carrying out the heavy goods from the container using the heavy goods transport device;
And a step of unloading the unloaded heavy object.
A heavy material transport method,
Mounting the container (10) and the heavy goods transport device (11) on the chassis (9) connected to the tractor (8);
Unloading the heavy load (12) to the heavy load conveying device;
On the chassis, the step of carrying the heavy goods into the container using the heavy goods conveying device;
And a step of transferring the chassis to a desired place by the tractor.