JP2001163575A - Travel guidance magnetism reference point of tire type crane - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a travel guidance magnetism reference point of a tire type crane performing a multiplicity of functions, including the function of transmitting container size information or the like, in addition to the function of guiding the tire type crane, by increasing the number of functions of the magnetism reference point. SOLUTION: One or more columnar magnets are buried in predetermined positions on a guide lane 19 on which the tire type crane 11 is guided during travel.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a magnetic reference point for guiding the traveling of a rubber tire crane (hereinafter referred to as a tire crane) in a container terminal.

[0002]

2. Description of the Related Art As shown in FIGS. 8 and 9, in a container terminal 10, a container storage location is divided into rectangular cells, and a paint mark (not shown) for marking is usually provided. Have been.

[0003] The tire type crane 11 travels across a paint mark, stops at the center of a container storage area called a bay, and then loads and unloads the container A from a trailer chassis 14 by a trolley 12 and a hanger 13.
Alternatively, the container A is loaded on the trailer chassis 14.

[0004] The tire type crane 11 has a traveling lane 15
Drive on the target bay number written on the ground (reference 16
), And the magnetic sensor 18 attached to the bracket 17 detects the magnetic reference point 20 on the guide lane 19 provided in parallel with the traveling lane 15 and stops at a predetermined stop position. I have.

Accordingly, the conventional magnetic reference point 20 is simply
It had only the function of guiding a tire crane.

[0006]

SUMMARY OF THE INVENTION Accordingly, the present invention provides a multifunctional tire-type crane capable of transmitting information such as container size in addition to a function of guiding a tire-type crane by expanding the function of a magnetic reference point. It is intended to provide a running guidance magnetic reference point.

[0007]

In order to achieve the above-mentioned object, a running guide magnetic reference point of the tire-type crane of the present invention is provided with a columnar magnet at a predetermined position on a guide lane for guiding the running of the tire-type crane. It is constituted by embedding one or more.

[0008] As described above, by embedding one or more columnar magnets at predetermined positions on the guide lane for guiding the traveling of the tire-type crane, the function of guiding the tire-type crane and the function of indicating the container size are provided. , A function to disable the stacking guide when handling reefer containers,
Various functions such as a function of slowing down when crossing the chassis lane can be added.

[0009]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a plan view of a container terminal employing a magnetic reference point according to the present invention. In the container terminal 10, as in the conventional case, the container storage location is divided into rectangular cells. , And a paint mark (not shown) for a mark.

The tire-type crane 11 travels across a paint mark and stops at the center of a container storage area called a bay. Then, as shown in FIG. A is loaded or unloaded, or the container A is loaded on the trailer chassis 14.

The tire type crane 11 has a traveling lane 15
Drive on the target bay number written on the ground (reference 16
), And the magnetic sensor 18 attached to the bracket 17 detects the magnetic reference point 20a on the guide lane 19 provided in parallel with the traveling lane 15 and stops at a predetermined stop position. I have.

As shown in FIG. 3, the magnetic reference point 20a is formed by embedding one columnar permanent magnet 21 on the guide lane 19. The magnet 21 is embedded at right angles to the guide lane 19. Moreover,
It is buried so that the depth d from the ground B is constant.

On the other hand, as shown in FIG. 4, the magnetic sensor 18 of the tire type crane 11 has a large number of magnetic detecting elements or sensors 23 arranged in a horizontal line on a lower surface of a sensor main body 22 and in an induction lane (not shown). It is provided so as to be at right angles to it.

[0015] Then, as shown in FIG.
8 reaches the position just above the magnetic reference point 20a, the magnetic detection elements or sensors 23 included in the magnetic detection width a, that is, several magnetic detection elements or sensors 23 are moved to the magnetic reference point 2a.
A magnetic e of 0a is sensed.

Accordingly, when the magnetic detection width is "a", a signal indicating a container storage location of 20 feet is input to a control device (not shown) in advance, so that the tire type crane 11 is set at the magnetic reference point 20a. In addition to the guiding function, a function indicating the container size is added.

On the other hand, when the number of permanent magnets 21 is increased to two as shown in FIG. 6, as shown in FIG.
Becomes the magnetic detection width b.

Therefore, when the magnetic detection width is "b", if the information indicating the container storage location of 40 feet is input to a control device (not shown) in advance, the tire type crane 11 is set at the magnetic reference point 20b. In addition to the guiding function, a function indicating the container size is added.

In the above description, the case where the function of indicating the container size is added to the magnetic reference point has been described. However, according to the present invention, the function of disabling the stacking guide when loading the reefer container at the magnetic reference point, Various functions can be added, such as a function of slowing down when crossing a lane and a warning of a TT entry prohibited area.

[0020]

As described above, according to the present invention, one or more columnar magnets are buried at predetermined positions on the guidance lane for guiding the traveling of the tire-type crane. Various functions such as a function for indicating a container size, a function for disabling a stacking guide when loading a reefer container, and a function for slowing down when crossing a chassis lane can be added.

[Brief description of the drawings]

FIG. 1 is a plan view of a container terminal to which a magnetic reference point according to the present invention is applied.

FIG. 2 is a cross-sectional view of the container terminal of FIG.

FIG. 3 is a sectional view showing an example of a magnetic reference point according to the present invention.

FIG. 4 is a front view including a partial cross section of the magnetic sensor.

FIG. 5 is an explanatory diagram of an operation of a magnetic detection element or a sensor in the magnetic sensor.

FIG. 6 is a cross-sectional view showing another example of the magnetic reference point according to the present invention.

FIG. 7 is a diagram illustrating the operation of a magnetic detection element or sensor in the magnetic sensor.

FIG. 8 is a plan view of a conventional container terminal.

9 is a cross-sectional view of the container terminal of FIG.

[Explanation of symbols]

 11 Tire type crane 19 Guidance lane 21 Magnet

Claims (1)

[Claims] 1. A traveling guidance magnetic reference point for a tire-type crane having at least one columnar magnet embedded at a predetermined position on a guidance lane for guiding the traveling of a tire-type crane.