JP2003137493A - Feeder system of tire type crane - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a feeder system of a tire type crane capable of feeding even when moving to an adjacent travel lane. SOLUTION: This tire type crane travels along the travel lanes a1-a5 provided on a container terminal B, and loads and unloads a container by a trolley 2. Power supply devices 8a-8e are provided in a periphery of the travel lanes a1-a5. Cable reels 18a-18c with feeding cables 17a-17c wound around and auxiliary engines for power generation 19a-19c are provided on a tire type crane main body 1. In addition the feeding cables 17a-17c and the power supply devices 8a-8e are detachably structured.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power supply device for a tire crane used for storing containers at a container terminal.

[0002]

2. Description of the Related Art Conventionally, a trolley is arranged on a gate-shaped crane body, and tire-type running wheels are provided on legs constituting the crane body, as one of cargo handling devices for storing containers at a container terminal. Tire-type cranes are known.

As shown in FIG. 6, in a tire type crane A, a trolley 2 is arranged above a gate-shaped crane main body 1, and a tire type running wheel 4 is provided below a leg 3 constituting the crane main body 1. It is provided.

Then, by driving a generator engine (not shown) in the engine room 5 mounted on the crane body 1, as shown in FIG.
While traveling along the traveling lanes a1 to a5 provided in the trolley 2 and the spreader 6 at predetermined positions.
It is designed to load and unload containers.

When the loading or unloading work on a predetermined traveling lane, for example, the traveling lane a1, is completed, the tire type traveling wheels 4 are rotated by 90 degrees in the horizontal plane by the rotating mechanism 7 to drive the traveling lanes a2 to a5. To move to any of That is, the driving lane a1
It is possible to perform vertical traveling in a direction along a5 to a5 and lateral traveling intersecting with the longitudinal traveling.

Therefore, since it is possible to improve the cargo handling efficiency by selecting the number of tire-type cranes A to be loaded according to the cargo handling amount of each traveling lane a1 to a5, it is used in many container yards.

[0007]

However, this tire-type crane A not only requires regular maintenance and overhaul of the engine for the generator mounted therein, but also increases the fuel cost, and therefore the running cost. There is a problem in that Further, not only the environment is deteriorated due to exhaust gas and noise, but also the crane body 1 has to have a rigid structure, which causes a problem that the production cost increases.

Therefore, for example, Japanese Patent Laid-Open No. 2000-272
As in Japanese Patent No. 868, in advance, a power source is arranged on the ground or underground, a power feeding cable 3 is provided on the crane body 1, and a connector is attached to the tip of the power feeding cable.
It is conceivable to connect the connector and the power supply.

However, when the power supply device for the tire type crane is used, there is no problem when the cargo is handled by traveling in the same traveling lane, but there is a problem that power cannot be supplied when moving to a different traveling lane. .

The present invention has been made to solve such a problem, and an object of the present invention is to provide a power supply device for a tire crane capable of supplying power even when moving to a different traveling lane. To provide.

[0011]

In order to solve the above problems, the present invention is constructed as follows.

That is, (1) In a tire type crane which is configured to travel along a traveling lane provided in a container terminal and to load and unload containers by a trolley and a spreader, at least two or more traveling lanes are provided. A power supply device is provided in the vicinity of the traveling lane, a cable reel around which a power supply cable is wound around the tire type crane body, and an auxiliary engine for power generation are provided, and the power supply cable can be attached to and detached from the power supply device. It is a power supply device for a tire-type crane configured.

(2) A power supply device, a housing, a guide member that is arranged in the housing and expands to an upper portion, a power feeding portion provided below the guide member, and a power feeding cable connected to the power feeding portion. 2. The power supply device for a tire-type crane according to claim 1, further comprising an attaching / detaching device for attaching / detaching the connector.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

Devices having the same functions as those of the conventional tire type crane are designated by the same reference numerals, and detailed description thereof will be omitted.

FIG. 1 is a plan view of the container terminal. The container terminal B is provided with five traveling lanes a1 to a5. Then, the driving lane a1
The selected number of tire-type cranes A are arranged in each of a5 to a5.

Further, power supply devices 8a to 8e are disposed in the longitudinal or longitudinal center of each of the driving lanes a1 to a5, on the side or directly beside the ground, respectively. Since the power supply devices 8a to 8e have the same structure, the power supply device 8a, which is one of them, will be described.

As shown in FIGS. 2 and 3, guide members 10a to 10c that expand upward are provided on the upper portion of the housing 9 buried in the ground of the container terminal B, and each of the guide members 10a to 10c. Power supplies 11a to 11c connected to a power supply cable (not shown) are arranged below 10c.

The attaching / detaching device 12 includes a base 13 and the base 1.
3 a slide base 14 that slides in the directions of arrows a and a ', and an operating mechanism 1 that is movable on the slide base 14 in the directions of arrows b and b'.
It is composed of 5 and. By operating the operation mechanism 15, the power supplies 11a to 11c and the connectors 16a to 16c described later are attached and detached.

The tire type crane A having traveling wheels 4 is
As shown in FIGS. 4 and 5, the cable reels 1 around which the power supply cables 17a to 17c are wound, respectively, at their lower portions.
8a to 18c and small power generation auxiliary engines 19a to 1c
9c and 9c, respectively. Then, the power supply cables 17a to 17 having the connectors 16a to 16c attached to the ends thereof.
The cable reels b can be unwound or wound up while being guided by the guide devices 20a to 20C attached to the lower portion of the portal main body 1, respectively.

Next, the operation of the tire type crane and the power feeding device thereof will be described.

When moving the tire-type crane A, which has finished the cargo handling, from the traveling lane a1 to the adjacent traveling lane a2, first, while winding the power supply cable 17a of the tire-type crane A on the cable reel 18a, the power supply device is provided. It is moved to the vicinity of 8a.

Thereafter, the turning device 7 is actuated to turn the tire-type running wheels 4 by 90 degrees in the horizontal plane. Next, the operation mechanism 15 of the attachment / detachment device 12 in the power supply device 8a is operated,
The connector 16c is released from the power supply 11a. Next, the power generation auxiliary engine 19a is driven to supply power to a drive motor (not shown) for the traveling wheels 4, and the tire-type crane A is laterally moved to move from the traveling lane a1 to the adjacent traveling lane a2.

After that, the connector 16a of the power supply cable 17a is connected to the power supply device 8b. Then, after the power supply from the power supply device 8b becomes possible, the power generation auxiliary engine 18 is stopped.

In the above description, the case where three (a plurality of) tire type cranes A are arranged in the same traveling lane a1 has been described, but the present invention is not limited to this, and one tire type crane A is used. Can also be applied in the case of. Further, the structures of the power supply devices 8a to 8e can be variously modified within the scope described in the claims.

[0026]

As described above, according to the present invention, the power supply device provided in the ground or on the ground in the vicinity of the traveling lane, the power supply cable provided in the gate-shaped crane body constituting the tire type crane, and the power generation auxiliary It is composed of an engine, the power supply when moving in the vertical direction (longitudinal direction) of the traveling lane and when loading and unloading is performed by connecting the power supply device and the power supply cable, and when moving in the horizontal direction, Since the auxiliary engine for power generation is driven, it is possible to completely prevent generation of exhaust gas and noise during vertical movement or during cargo handling.

Further, when the tire type crane is traversing, the load is small because there is no cargo handling. Therefore, since the auxiliary engine for power generation used during traverse can be downsized, the gate-shaped crane body can have a relatively light structure, which can reduce the manufacturing cost and the generation of exhaust gas and noise. The effect is that you can do it.

[Brief description of drawings]

FIG. 1 is a plan view of a container yard in which a power supply device for a tire crane according to the present invention is installed.

FIG. 2 is a cross-sectional view of a power supply device applied to the power supply device.

FIG. 3 is a sectional view taken along line CC ′ of FIG.

FIG. 4 is a side view of a tire-type crane having a power supply device for a tire-type crane according to the present invention.

5 is a view on arrow DD 'in FIG. 4. FIG.

FIG. 6 is a side view of a conventional tire crane.

FIG. 7 is a plan view of a conventional container terminal.

[Explanation of symbols]

A tire type crane B container terminal a1-a5 driving lane 1 Gate-shaped crane body 2 trolley 6 spreaders 8a to 8e power supply device 17a to 17c power supply cable 18a-18c Cable reel 19a-19c Auxiliary engine for power generation

Claims (2)

[Claims] 1. A tire-type crane adapted to run along a traveling lane provided in a container terminal and to load and unload containers by a trolley and a spreader, wherein at least two traveling lanes are arranged, A power supply device is provided in the vicinity of the traveling lane, a cable reel in which a power supply cable is wound around the tire type crane body, and an auxiliary engine for power generation are provided, and the power supply cable is configured to be detachable from the power supply device. Power supply device for a tire-type crane. 2. A power supply device, a housing, a guide member which is arranged in the housing and expands to an upper portion, a power feeding portion provided below the guide member, and a power feeding cable connected to the power feeding portion. The power supply device for a tire-type crane according to claim 1, further comprising an attaching / detaching device for attaching / detaching the connector.