JP2529048Y2 - Hanging equipment for container handling - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a container handling apparatus, and more particularly, to a container handling apparatus capable of simplifying positioning when stacking containers in container handling.

[0002]

2. Description of the Related Art In general, when carrying out container handling, a spreader is used as a hanger suspended from a container crane. In this spreader, as shown in FIGS. 11 and 12, a twist lock 3 and a guide flipper 4 are arranged at four corners of a spreader main body 2 composed of a frame having substantially the same size as the plane section of the container 1. It is configured.

When a container is hoisted using the spreader S having such a structure, the rope 5 wound around a hoisting device arranged on a container crane (not shown) is fed out via a sheave 6. After lowering the spreader S and aligning it with the container 1 by the guide flipper 4, the twist lock 3 is fitted to the four corners of the container 1, and the rope 5 is wound up and hung up or down.

In container handling, containers are sometimes stacked in a storage area or the like. That is, a container suspended by such a spreader is stacked on a pre-arranged container. In this case, an alignment work is required. In order to increase the efficiency of the positioning operation, a spreader provided at the four corners of the spreader body and extending downward is used. Specifically, a hanger provided with a guide flipper having a length greater than the height of the container is disclosed in, for example, Japanese Patent Laid-Open No. 50-8876.
No. 5 proposes this.

[0005]

However, a problem arises with the hanging tool provided with the long guide flipper extending downward as described above. That is, when the spreader having such a long guide flipper is guided on the side of the container, a large bending moment is generated at the base of the guide flipper due to the horizontal force. By the way, the height of this container is 2.9 m in the maximum dimension, but the guide flipper needs to be longer, and in order to withstand the large bending moment acting on it, it must be strong. No.

Further, since the containers need to be stacked in multiple rows at narrow intervals, the cross-sectional height of the guide flipper or the like cannot be made large, so that a thick plate is used, and as a result, the weight is extremely heavy. This significantly increases the overall weight and cost of the crane. Therefore, it was not practical.

[0007]

SUMMARY OF THE INVENTION In order to solve the problems of the above-mentioned embodiments, a container loading / unloading hanger according to the present invention comprises a spreader body constituted by a frame having substantially the same size as a plane section of a container. A guide frame having a guide flipper for engaging a container, an elevating device for supporting the guide frame below the spreader body, a winch provided on the spreader body, and a side portion of the spreader body pulled out from the winch. And a wire connected to the opposing frame via a lower guide frame.

More specifically, a spreader body composed of a frame having substantially the same size as the plane section of the container;
It consists of two guide frames having a length slightly larger than the width of the spreader main body. An elevating device and first sheaves are arranged on the spreader main body and four corners of the spreader main body. 2 and a guide flipper projecting downward, the guide frames are arranged on both longitudinal sides of the spreader main body, and a rope connected to one guide frame is provided on another guide frame. The object of the present invention is to provide a structure of a container loading / unloading hanger which is wound around the elevating device via a second sheave provided and a first sheave provided on a spreader body.

[0009]

[Operation] Position the spreader body on the container,
The guide frame is lowered along the longitudinal side of the container by the elevating device to position this guide frame at the lower part of the overlying container, and the guide frame is placed at the lower part of the container by the wire stretched between the opposing guide frames. Fix it. In this state, the upper stacking container is lifted and moved above the lower stacking container, and the guide flippers provided at both ends of the guide frame are projected downward by the elevating device to engage with the upper portion of the lower stacking container to position the upper stacking container. I do.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the structure of a container handling apparatus according to the present invention will be described below with reference to FIGS. FIG. 1 is a front view of a container handling spreader, FIG. 2 is a plan view thereof, and FIG. 3 is a side view thereof. The spreader body 11 that constitutes the spreader 10 is configured such that both sides thereof can be extended and contracted with respect to the central portion, and is formed of a frame body that can be adjusted to have substantially the same size as the plane section having the length L and the width W of the container 12. . A hydraulic motor 13, a drum 14, and a winch 15 having a brake are provided at a central portion on the spreader main body 11.

At the four corners of the spreader body 11, first sheaves 16a to 16d and a hydraulic device (not shown) are arranged. Reference numerals 17a to 17d denote third sheaves, which serve to guide wire ropes 18a to 18d to be described later to the drum 14 of the winch 15. 19a and 19b are the spreader body 11
The guide frame is composed of a lateral beam having a length W 'slightly larger than the width of the second sheave 20a. The guide frame is disposed on both sides in the longitudinal direction of the spreader main body 11, and at both ends of the guide frames 19a, 19b. 20d is provided, and guide flippers 21a to 21d are provided on both sides of the horizontal beam so as to protrude downward.

The wire rope 18a wound around the drum 14
The 18d is looped around third sheaves 17a to 17d, first sheaves 16a to 16d and second sheaves 20a to 20d, and one end thereof is connected to the opposing guide frames 19a, 19b. Specifically, the wire ropes 18a and 18b are drawn out in the longitudinal direction (left side in the figure) of the spreader main body 11, guided by the third sheaves 17a and 17b in the width direction of the main body 11, and provided at the ends thereof. First sheave 16
a, the guide frame 19 located below
a and 19b, and is fixed to the opposing guide frame 19b. The other wire ropes 18c, 18d are wrapped around the third sheaves 17c, 17d, the first sheaves 16c, 16d and the second sheaves 20c, 20d.
19a.

Reference numerals 22a and 22b denote hydraulic cylinders. The hydraulic cylinders 22a and 22b are attached to the center of the spreader body 11 in the width direction, and the lower ends thereof are guide frames 19a and 19b.
Mounted on Further, a twist lock 23 is provided below the spreader body 11 to engage with a metal fitting provided on a shoulder of the container, and a wire rope 24 for lifting is provided via a sheave 25 in the center. I have.

FIG. 4 shows a hydraulic circuit of a hydraulic device for operating the hydraulic motor 13 for moving the guide frames 19a and 19b up and down and the hydraulic cylinders 22a and 22b.
To the hydraulic motor 13 from the line m ₁ is hydraulic oil by driving the hydraulic pump 27 in the oil tank, also, from the line m ₂ to the brake 28, as will be further supplied from the line m ₃ hydraulic cylinders 22a, 22b, Has become. 29 to 31 are solenoid valves, and 32 is a relief valve.

Next, the operation of the device according to the present invention will be described. [When grabbing a container with an empty spreader] First, a container placed at a predetermined position as shown in FIGS.
By operating the hydraulic cylinders 22a and 22b provided on the spreader main body 11 with the spreader 10, ie, the hanging tool, positioned on the upper surface 12, the guide frames 19a and 19b are raised to the side of the spreader main body 11, and the state shown in FIG. I do. In other words, the guide flippers 21a to 21d are
The container 12 is pulled up so as to protrude downward, and preparation for lifting the container 12 is made.

[0016] After this operation is obtained by energizing the solenoid valve 30a, the hydraulic pump 27 is actuated the oil tank 26 in the oil hydraulic oil as a line m ₁ line is supplied to the hydraulic motor 13 from m ₂ from the brake 28 Supplied to release this. The hydraulic cylinders 22a from the line m ₃ through line m _4, is supplied to the rod side of 22b. In this case the hydraulic cylinder 22a, a rod side hydraulic oil of 22b the line m ₅
And it flows into the oil tank 26 via line m _6. When the guide frames 19a and 19b rise to predetermined positions on the side of the spreader main body 11, the hydraulic pump 27 is stopped, the electromagnetic valve 30a is de-energized, and the electromagnetic valve 31 is excited.
As a result, the brake 28 operates to brake the hydraulic motor 13, that is, the drum 14, to hold the guide frames 19a, 19b. [Spreader Positioning Operation] Next, the spreader 10 having the guide frames 19a and 19b pulled up to the side of the spreader body 11 as shown in FIGS. Lower onto container 12.

In the lowering operation of the spreader 10,
If there is a misalignment between the container 12 and the spreader 10, the upper corner hardware of the container 12 will be guided in contact with the inner inclined portions of the guide flippers 21a to 21d, and the spreader will be mounted on the guide frames 19a and 19b. A horizontal force acts in the width direction, the longitudinal direction, or both directions outward on the 10.

The horizontal force P ₁ of the width direction is supported by the reaction force generated in the corner portion side of the spreader body 11 conveyed by a axial force of the guide frame 19a on the opposite side of the guide flipper 21b, as a result, Spreader body
11 is moved in the direction of the horizontal force P _1. On the other hand, the guide frame 19 horizontal force P ₂ in the longitudinal direction to face each other
The tension of the wire ropes 18a to 18c connected to a and 19b is transmitted to the guide frame 19b on the opposite side, and the spreader body 11 is also supported by the reaction force generated on the side surface of the corner.

That is, the horizontal load applied to the guide flippers 21a to 21d having the downward inclined surfaces is caused by pushing the opposite side surface of the spreader main body 11 in the direction in which the horizontal load is applied to lift the spreader 10 up. Can be correctly aligned on top. Then, the container 12 is connected by a twist lock 23 provided at a lower portion of the spreader main body 11. [Deciding operation of the guide frame] When the spreader 10 grips the container 12 in this way, the solenoid valve 30b is excited, and the hydraulic pump 27 is operated to supply the hydraulic oil to the hydraulic motor 13, the brake 28 and the hydraulic cylinders 22a, 22
b, the brake 28 is released, the piston rods of the hydraulic cylinders 22a, 22b extend downward, and the guide frames 19a, 19b descend.

At this time, since the pressure determined by the relief valve 32 is applied to the hydraulic motor 13 toward the load, an appropriate tension acts on the wire ropes 18a to 18d. as a result,
The wire ropes 18a to 18d are prevented from drooping excessively and hindering cargo handling. [Container lifting operation] Then, the guide frames 19a and 19b are positioned at predetermined positions, that is,
When the guide flippers 21a to 21d reach a position projecting slightly below the lower surface of the container 12 as shown in FIGS.
At the same time, the electromagnetic valve 29 is excited to switch the electromagnetic valve 31 to the non-excited state. At this time, the guide frames 19a and 19b are connected to the wire ropes 18a to 18a.
d and the hydraulic cylinders 22a and 22b, and the guide flippers 21a to 21d provided at the tips thereof stop at a position where they protrude slightly below the lower surface of the container 12 so as to sandwich the end face of the container 12 from both sides.

In this state, when the upper container 12 is lifted and stacked on the lower container 12 arranged in advance, the guide flippers 21a to 21d are
The alignment is automatically performed by touching the hardware in the 12th corner. Then, when the loading of the upper container is completed on this lower container, the twist lock
After releasing 23 and separating the upper container 12 from the spreader 10, the hydraulic pump 27 is activated to operate the spreader body 11
Then, the guide frames 19a and 19b are raised to the side.

When the length of the spreader body 11 is adjusted, the solenoid valve 29 is switched to the excitation position and the solenoid valve 31 is switched to the non-excitation position in accordance with the separately provided spreader expansion / contraction operation. As a result, the cylinder load side circuit is blocked and the brake 27 is released, so that the guide frames 19a and 19b are held in place by the hydraulic cylinders 22a and 22b, and an appropriate tension acts on the wire ropes 18a to 18d. The expansion and contraction operation is performed while doing so.

FIG. 6 is an explanatory view of the operation of the solenoid valve when the guide frame is raised and lowered, when the guide frame is stopped, and when the spreader is expanded and contracted. 7 and 8 show another embodiment in which the guide frames 19a and 19b are lifted and lowered by winches 33a and 33b and wire ropes 34a and 34b. That is, the winch 33 is placed on the beam at both ends of the spreader.
a, 33b are attached, one end of the rope charged in the winch is fixed to the guide frame, and the winch is wound up and extended to raise and lower the guide. In addition, winch 15
Is the same as that of the embodiment shown in FIGS.

FIGS. 9 and 10 show still another embodiment, in which the guide frames 19a and 19b are raised and lowered by the hydraulic cylinder 22.
a, 22b, the wire ropes 18a, 18b are winches
35a and wire ropes 18c and 18d are winches 35b
It is wound by each. That is, the winches 35a and 35b are attached to the beams at both ends of the spreader, and the wire rope charged in the winch is connected to the sheaves 16a and 16 on the spreader.
b, 16c, 16d and guide sheaves 22a, 22b, 22c,
It is wrapped around 22d and fixed to guides 21c, 21d, 21a and 22b. The operation of lifting and lowering the guide and operating the cylinder and winch is the same as in the embodiment shown in FIGS.

[0025]

According to the present invention, a container handling apparatus according to the present invention is a guide frame 19a having a spreader body 11 composed of a frame having substantially the same size as a plane section of a container and guide flippers 21a to 21d for engaging the container. ,
19b, lifting devices 22a and 22b for supporting the guide frame below the spreader main body 11, a winch 15 provided on the spreader main body 11, and a lower portion than the side portion of the spreader main body 11 which is pulled out from the winch 15. 18 connected to the opposing frames 19b, 19a via the guide frames 19a, 19b of the
a to 18d.

Therefore, it is possible to minimize the increase in the overall weight and cost of the crane without increasing the size of the container handling lifting guide flipper.
In addition, there is flexibility because the guide flippers arranged on both sides of the spreader body are connected with a wire rope,
Therefore, there is an effect that the length between the guide flippers does not change due to bending in contact with a container or the like when connected by a rigid body.

[Brief description of the drawings]

FIG. 1 is a front view of a container handling hanger according to an embodiment of the present invention.

FIG. 2 is a plan view showing the container in a suspended state.

FIG. 3 is a side view of a state where a container is suspended.

FIG. 4 is a circuit diagram of a hydraulic device.

FIGS. 5A and 5B are a front view and a side view, respectively, for explaining the positioning of an empty container handling hanger with a container.

FIG. 6 is a diagram illustrating the operation of a solenoid valve of a hydraulic circuit.

FIG. 7 is a front view of another embodiment.

FIG. 8 is a plan view of another embodiment.

FIG. 9 is a front view of still another embodiment.

FIG. 10 is a plan view of still another embodiment.

FIG. 11 is a front view of a conventional spreader.

FIG. 12 is a plan view of a conventional spreader.

[Explanation of symbols]

10 Spreader 11 Spreader body 12 Container 13 Hydraulic motor 20a ~ 21d Guide flipper 25
Sheave 15, 33a, 33b, 35a, 35b Winch 16a-16d First sheave 17a-17d Third sheave 20a-20d Second sheave 18a-18d, 24, 34a, 34b Wire rope 19a, 19b Guide frame 22a, 22b Hydraulic cylinder.

 ────────────────────────────────────────────────── ─── Continuing from the front page (72) Inventor Shoji Kawaguchi 3-1-1, Tamano, Tamano-shi, Okayama Prefecture Mitsui Engineering & Shipbuilding Co., Ltd. Tamano Works (72) Inventor Masayasu Miyake 3-1-1, Tamano-shi, Tamano-shi, Okayama No. Mitsui Engineering & Shipbuilding Co., Ltd. Tamano Works (56) References Japanese Utility Model 3-53985 (JP, U) Japanese Utility Model 3-53986 (JP, U)

Claims (1)

(57) [Scope of request for utility model registration] 1. A spreader main body 11 composed of a frame having substantially the same size as a flat section of a container, guide frames 19a and 19b having guide flippers 21a to 21d for engaging the container, and a lower part of the spreader main body 11. Lifting device 22a for supporting the guide frame,
22b, a winch 15 provided on the spreader main body 11, and a guide frame 19a, 1 drawn out of the winch 15 and below a side portion of the spreader main body 11.
A container cargo handling hanger consisting of wires 18a to 18d connected to opposed frames 19b, 19a via 9b.