JP2006182467A - Container crane and container terminal - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a container crane allowing a chassis to change traffic lane of a lane for work and a lane for passing easily to make work in a container yard smooth even if a fence for preventing an obstacle from intruding into a travel zone of the container crane is provided when introducing a remote unmanned operation system into the container yard. <P>SOLUTION: A one end part of a beam 4c of the yard type bridge-shaped crane 4 is elongated to form an elongation part 4g, and the lane Lp for passing is provided in parallel with the lane Lj for work below the elongation part 4g. The lane Lj for work is a lane on which a chassis 5j for work stops for loading and unloading work, and the lane Lp for passing is a lane on which the other chassis 5p passes the chassis 5j during work by. The elongation part 4g does not perform loading and unloading work on the lane Lp as the outside of a travel scope of a trolley 4d. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a bridge-type crane for a yard that performs loading and unloading operations such as loading and unloading of containers between the ground and a chassis among container cranes in a container yard, and in particular, chassis work for loading and unloading operations by the container crane. The present invention relates to a container crane having a relationship between a lane for lanes and a lane for passing other chassis overtaking the chassis, and a container terminal in which the container crane is arranged.

  As shown in FIG. 5, the container yard 1 stores containers 3 that are loaded or unloaded on a container ship that touches the quay, and is used for loading or unloading the containers 3 installed in the container yard 1. As a container crane to be used, there is a tire-type yard bridge crane 4 as shown in FIG. This tire type yard bridge crane 4 has a structure comprising a pair of legs 4b having tires 4a in the lower part and a girder 4c spanned on the upper end of the leg 4b. The trolley 4d is guided by the girder 4c. The container 3 is hung with a trolley 4d in a state where it straddles the stacked block of the container 3 and the chassis 5 stopped to the side of the block, and the container 3 is loaded into or unloaded from the chassis 5. Do. The container 3 is held by a spreader 7 connected to the trolley 4d. Also, the operator's cab 4e on which the operator is boarded moves together with the trolley 4d, and this operator operates the trolley 4d.

  Further, as shown in FIG. 5, a quay container crane 6 is used for loading and unloading the container 3 with a container ship moored to the quay 2. In the container yard 1, at the gate 1a through which the chassis 5 that has arrived at the container yard 1 through the general road W passes, for example, the container yard 1 is instructed to load and unload the container 3, and the instruction Accordingly, the driver moves the chassis 5 to a predetermined position.

  FIG. 7 is a plan view showing a part of the container yard 1 and shows a state in which loading and unloading operations between the container 3 and the chassis 5 are performed. The container 3 is formed and stored in a block 30 that is lined up and appropriately stacked. The chassis 5 is loaded at the loading / unloading work position of the container 3, and the yard crane 4 is positioned across the chassis 5 and the container 3 as described above. If there is a chassis 5 that is used for cargo handling work and there is a chassis 5 that travels to another work position, the entire work in the container yard 1 will be stagnant if waiting for the work to be completed. Therefore, it is necessary to overtake the chassis 5 during the work. Therefore, as shown in FIG. 7, a passing lane Lp is provided so that another chassis 5 can pass through the side of the yard crane 4. The chassis 5 used for work travels on the work lane Lj and stops at the work position. In order to effectively use the space in the container yard 1, the blocks 30 of the container 3 are stacked in a substantially line-symmetric state around the passing lane Lp, and the yard crane 4 is connected to the girder 4c. The chassis 5 is stopped facing both ends of the cargo handling work.

  By the way, the yard crane 4 is operated and operated by an operator boarding the operator's cab 4e to carry out the cargo handling operation of the container 3. An unmanned operation system by operation has been developed. For example, a camera is mounted on an appropriate part of the trolley 4d or other necessary part, and an image captured by the camera is sent to a management center that centrally manages the trolley 4d, and the yard crane 4 is operated while visually checking the image at the management center. It is what you want to do. When such an unmanned operation system is introduced, the field of view at the management center is limited. For example, when an unexpected obstacle exists in the moving area of the tire 4a of the yard crane 4, the yard The crane 4 may collide with the obstacle. For this reason, it is conceivable to surround the moving area with a fence or the like so that such an obstacle does not enter the moving area. For example, in FIG. 7, a fence is provided at the portion of the two-dot chain line indicating the passing lane Lp. If a fence is provided in this part, the lane of the chassis 5 cannot be easily changed between the work lane Lj and the passing lane Lp. For example, the work lane Lj must be entered into the work lane Lj where the work position is located. If you accidentally enter the passing lane Lp, you must pass through the work position. Moreover, since the passing lane Lp is one-way as shown in FIG. 7, the chassis 5 must enter the work lane Lj after bypassing the block 30 where the container 3 exists. Don't be. For this reason, the speed of the cargo handling operation is impaired.

  By the way, a transfer crane, a container terminal, and a transfer crane control method that have two rows of tracks for guiding an automatic guided vehicle on a traveling path of a transfer crane body have been proposed (see Patent Document 1). The transfer crane includes a transfer crane main body, a traveling path on which the transfer crane main body traverses, and a track that guides the automatic guided vehicle. The track is provided in two rows, and at least of these two tracks. One is configured to be located on the travel path.

JP2004-10284

  However, as described above, when the remote unmanned operation system for the container crane 4 is introduced, it is necessary to take measures to prevent an unexpected obstacle from entering the moving area of the container crane 4. Will be provided. In the case where a fence is provided, the chassis cannot cross the fence, and as described above, there arises a problem that the lane cannot be changed.

  On the other hand, since the invention described in Patent Document 1 is a case of controlling an automatic guided vehicle, it is not necessary to consider that an unexpected obstacle enters the moving area of the container crane, and it is necessary to provide a fence or the like In addition, the automatic guided vehicle can change the two rows of tracks relatively freely. In addition, a track to be traveled is selected by detecting magnetism or the like, and this magnetic detection means is mounted, which relates to a so-called yard chassis dedicated to a container yard. However, since the magnetic detection means is not mounted in the external chassis, it cannot be controlled by the track, and it is necessary to be able to freely change the lane between the work lane and the passing lane.

  Accordingly, the present invention provides a container crane and a container terminal that allow a chassis to freely change lanes between a working lane and a passing lane even when a fence surrounding a moving range of the container crane is provided, for example. The purpose is that.

  As a technical means for achieving the above object, the container crane according to the present invention provides a container yard and a container when loading and unloading containers between the ground and the chassis in a container yard. In a bridge-type container crane that works while straddling, an extension part with a girder extended beyond the transverse range for trolley cargo handling work is provided, and a chassis passage lane is arranged below the extension part. The working lane and the passing lane are arranged in parallel below the beam.

  Since the working lane and the passing lane are arranged in parallel without interposing a fence or the like, the lane change between these lanes can be easily performed. Moreover, since these lanes are arranged below the girders of the container crane, there is no problem in changing the lane while the chassis is running even when the moving area of the container crane tire is surrounded by a fence or the like.

  The container crane according to the invention of claim 2 is characterized in that a trolley cannot enter the extending portion.

  In the passing lane, the chassis does not stop, that is, the trolley cannot be positioned in the extending portion so that the cargo handling operation is not performed in the passing lane.

  The container terminal according to the invention of claim 3 is characterized in that the container crane is arranged.

  According to the container crane according to the present invention, since the work lane and the passing lane are arranged below the girder of the container crane, the chassis can easily change the lane between these lanes. For this reason, the moving range of the tire of a container crane can be enclosed with a fence etc., Therefore The introduction of the remote unmanned operation system of a container crane can be aimed at. In addition, the amount of container loaded on the block is not reduced by extending the girder and providing the extending portion.

  Further, according to the container crane of the invention of claim 2, since the trolley cannot be positioned with respect to the chassis in the passing lane, the loading and unloading work of the container cannot be performed. Even if there is a chassis, there is no problem in passing the side of the chassis.

  Moreover, according to the container terminal which concerns on invention of Claim 3, introduction of a remote unmanned operation system can be promoted to this container terminal.

  The container crane according to the present invention will be specifically described below based on the preferred embodiments shown in the drawings. A tire-type yard bridge crane will be described as a container crane, and the same parts as those shown in FIG.

  FIG. 1 is a front view of a yard bridge crane 4 as a container crane according to the present invention, FIG. 2 is a left side view, and FIG. 3 is a view taken along the line AA in FIG. First, the schematic structure of the yard crane 4 will be described. As shown in FIGS. 2 and 3, the leg 4b is provided with a pair of front and rear legs 4b1 and 4b2 on the left and right sides, and the upper ends of the left and right legs 4b1 and the left and right legs 4b2 The girders 4c are spanned between upper end portions. The trolley 4d is guided by these girders 4c and can be traversed in the horizontal direction in FIG. A spreader 7 is suspended from the trolley 4d. The container 3 is held by the spreader 7, and the container 3 is loaded or unloaded. The trolley 4d is provided with a driver's seat 4e connected thereto, and is moved together with the trolley 4d. In the case of remote unmanned operation, no operator is boarded in the cab.

  Lower frames 4f1 and 4f2 are spanned under the left and right legs 4b1 and 4b2, respectively. An engine room 8 is arranged in the lower frame 4f1, and an electric machine control room 9 is arranged in the lower frame 4f2. The tire 4a is provided at the lower part of the lower frames 4f1 and 4f2 at a position supporting the lower side of the legs 4b1 and 4b2. The tire 4a is rotatably supported around the vertical axis. That is, when the tire 4a is in the state shown in FIG. 1, the yard crane 4 can move in a direction penetrating the paper surface, and can move in the left-right direction on the paper surface when rotated 90 ° about the vertical axis. Is.

  As shown in FIG. 1, two lanes Lj, so that two chassis 5 can be positioned side by side below the yard crane 4 and on one side of the block 30 of the container 3. Lp is provided. Of these lanes Lj and Lp, the side adjacent to the container 3 is used as a work lane Lj, and the side located on the leg 4b side is used as a passing lane Lp. The working lane Lj is a lane for loading and unloading the container 3 to and from the chassis 5j, and the passing lane Lp is a chassis 5p that overtakes the chassis 5j stopped on the working lane Lj. Lane. Further, the traversing range R of the trolley 4d of the yard crane 4 is a range in which the container 3 can be loaded and unloaded from the chassis 5j in the work lane Lj, up to above the passing lane Lp. The trolley 4d is prevented from moving. That is, comparing FIG. 1 and FIG. 6, a part of the beam 4c is extended to provide an extended part 4g, and a passing lane Lp through which the chassis 5p passes is arranged below the extended part 4g. The trolley 4d is prevented from entering the elongated portion 4g.

  FIG. 4 is a plan view showing a part of the container yard 1. When the chassis 5j for loading and unloading of the container 3 is stopped at the side of the block 30 of the container 3, the chassis 5p passes through the opposite side of the block 5 of the chassis 5j. . That is, the chassis 5j travels on the work lane Lj, and the chassis 5p travels on the passing lane Lp. These lanes Lj and Lp are arranged below the girder 4c of the yard crane 4. In the case of remote unmanned operation without placing an operator in the cab 4e of the yard crane 4, by enclosing the moving area of the tire 4a of the yard crane 4 with a fence 10, It is preferable to prevent an obstacle from entering the vehicle.

  Further, as shown in FIG. 4, the relationship between the block 30 of the container 3 and the lanes Lj and Lp is the same in any block 30. That is, the entire container yard 1 is arranged so that the positional relationship between each block 30 and each lane Lj, Lp is translated.

  In the container crane configured as described above, when the chassis 5 traveling on the passing lane Lp approaches the position where the container 3 should be loaded and unloaded, the lane is changed to the working lane Lj and a predetermined value is obtained. Stop at the working position and wait. Thereafter, the yard crane 4 moves to the working position, and the container 3 is loaded and unloaded.

  When the chassis 5j is being handled in the work lane Lj, the chassis 5p heading to another work position can pass the lane Lp for passing and overtake the chassis 5j. it can. Therefore, there is no problem in traveling to a predetermined work position, and the vehicle stands by at the work position. When the work on the chassis 5j is completed, the yard crane 4 moves to the next work position where the standby chassis 5j is located, and loads and unloads the container 3. For this reason, the cargo handling work in the whole container yard 1 can be performed smoothly, and the stagnation of work can be reduced as much as possible.

  When the yard crane 4 is unmanned by remote operation, the fence 10 can be provided to prevent an unexpected obstacle from entering the moving area of the tire 4a of the yard crane 4. For this reason, introduction of a remote unmanned operation system can be promoted.

  In the embodiment described above, the tire-type yard bridge crane 4 is illustrated as a container crane, but the present invention can be used even with a rail-type yard bridge crane.

  According to the container crane according to the present invention, since the passing lane is arranged below the extended portion where the girder of the bridge-shaped yard crane is extended, the side of the chassis working with the container crane is obstructed. Can pass without. For this reason, a fence etc. can be provided so that an unexpected obstacle may not enter into the movement area of a container crane, and introduction of a remote unmanned operation system of a container crane and a container terminal can be promoted.

It is a front view which shows the container crane which concerns on this invention, and has shown the bridge type crane for tire type yards. It is a left view of the bridge crane for yards shown in FIG. It is an AA arrow directional view of the bridge crane for yards shown in FIG. It is a top view which shows a part of container yard which uses the container crane which concerns on this invention. It is a schematic plan view which shows an example of a container yard. It is a front view of the conventional bridge crane for yards. It is a top view which shows a part of container yard which uses the conventional bridge crane for yards.

Explanation of symbols

1 container yard
1a Gate 2 Quay 3 Container 4 Tire-type yard bridge crane (container crane)
4c digit
4d trolley
4g Extension part 5 (5j, 5p) Chassis
10 Fence
30 blocks Lp passing lane Lj working lane

Claims (3)

In the container yard, when loading and unloading containers between the ground and the chassis at the container yard, in a bridge type container crane that works while straddling the container and the chassis,
Establish an extension that extends the girder beyond the traversing range for trolley cargo handling work,
Place a chassis lane below the extension,
A container crane having a working lane and a passing lane arranged in parallel below the beam.   The container crane according to claim 1, wherein a trolley cannot enter the extension portion. A container terminal comprising the container crane according to claim 1 or 2.

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