JPS638560Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a cargo handling device suitable for use in the hold of a reefer ship.

(Prior Art) Conventionally, it has been strongly desired to improve the loading efficiency and work efficiency of a cargo handling device in a ship's hold. Devices that increase loading efficiency in a ship's hold include:
Those disclosed in Utility Model Publication No. 56-17429 and Japanese Unexamined Patent Application Publication No. 54-13162 are known. However, in the former case, the girder of the crane is composed of a double girder, and it is impossible to load cargo higher than the bottom surface of the girder, so a dead space is created above the area where the crane travels. have. Furthermore, in the latter case, a stacker type crane is used and has a post below the lower surface of the girder, so it is necessary to secure space for the post to run in the center of the hold. For this reason, it is necessary to take measures to prevent the cargo in the hold from collapsing, taking into consideration cases where the ship is rocking such as rolling or pitching, and it also has the drawback that equipment costs are quite high. ing.

(Purpose of the invention) The present invention was made to eliminate a series of these drawbacks. It simplifies the structure, eliminates dead space in the hold as much as possible, increases loading efficiency, and significantly improves work efficiency. The purpose is to provide cargo handling equipment for use in refrigerated cargo holds.

(Structure of the invention) Therefore, the structure of the invention is such that the girder of the crane that runs on the traveling rails laid on the upper part of both side walls in the hold is composed of a single girder, and the trolley of the hoisting machine that runs traversing along the girder is , guide rails are positioned on both outsides of the girder and fixed to extend in the vertical direction, forks are provided on the guide rails so that they can move up and down, and two hoisting wire ropes are wound around the drum of the hoisting machine. The lower ends of the wire ropes are passed through insertion holes drilled in the frame body that holds the forks, and are allowed to hang down from both outside sides of the girder, and a hook having a stopper is fixed to the lower end of each wire rope,
It is characterized in that the stopper is formed in a shape that can abut against the lower surface of the frame.

(Function) When using this cargo handling device to load cargo into a predetermined position in the hold, the cargo carried into the bottom of the hold is hooked onto the hook of the hoisting wire rope and hoisted by the hoisting machine. Then, by moving or moving the crane, the cargo is sequentially loaded from the top level to two levels below. Next, the loading of cargo on the tier one level below the top tier can be carried out by inserting a fork into a hanging ring or the like provided on a sling holding the cargo and moving the fork up and down.

Loading to the top level is done by inserting a fork into the pallet on which the cargo is placed and moving the fork up and down. Finally, when loading cargo into a space where the crane can no longer move, all cargo is loaded into the hold by loading the cargo directly through the hatch hole in the hold. Conversely, when carrying out the cargo in the hold, the above-mentioned carrying-in procedure can be carried out in the reverse order.

(Embodiment) Hereinafter, an embodiment of the present invention will be described based on FIGS. 1 to 3. Reference numeral 1 denotes a ship hold, and a required number of runway brackets 3 are protruded from the upper parts of both side walls 2 in the hold 1. A traveling rail 4 is laid on the upper surface side of the runway bracket 3.

5 is a running wheel that rolls on the upper surface of the running rail 4;
Reference numeral 6 denotes side rollers that roll on the side surface of the running rail 4, and both the running wheels 5 and the side rollers 6 are held by a crane saddle 7 disposed above the running rail 4. The base of the crane saddle 7 is fixed to a girder 8 consisting of a single girder with a box-like cross section, thereby forming a crane 9. This crane 9 is operated by a self-propelling prevention mechanism (not shown) and a traveling geared motor in the direction in which the traveling rail 4 extends (perpendicular to the paper surface of FIG. 1).
It's starting to run like this.

On the other hand, on the top surface of the girder 8, there are stoppers 1 at both ends.
0 and the traverse rail 11
A rack gear 12 extending parallel to the above is installed. As shown in FIG. 3, on this traversing rail 11, a traversing wheel 15 rotatably attached to a trolley 14 of a hoisting machine 13 is mounted. 15a is a transverse power supply device.

On both sides of the trolley 14, cross-sectional guide rails 16a and 16b are welded facing each other, and on the back side of the guide rails 16a and 16b, a lower surface of a flange material 8a forming the upper part of the girder 8 is attached. A counter roller 17 that rolls and a horizontal roller 18 that rolls on the side surface of the web material 8b forming the side portion of the girder 8 are respectively attached. The lower ends of the guide rails 16a, 16b are located at approximately the same height as the lower surface of the girder 8, and the upper end portions of the guide rails 16a, 16b are located at the fork 27.
It is slightly tilted rearward to prevent the cargo W supported by a and 27b (described later) from falling.

The hoisting machine 13 is a known one in which an electric motor 20, a brake 21, a speed reducer 22, a drum 23, etc. are integrally assembled on a trolley 14 via a side plate 19, and the hoisting machine 13 straddles the girder 8. It is set up like this. Reference numeral 24 denotes a traversing geared motor attached to the trolley 14, the output shaft of which meshes with the rack gear 12 via a pinion gear 25, and the hoist 13 uses the geared motor 24 as a drive source to traverse the traversing rail 11. ing. The hoisting machine 13 can be operated using a push button switch or a wirelessly operated transmitter (not shown). 13a is a control box.

Reference numeral 26 denotes a fork frame body in which the vertical parts of forks 27a and 27b are welded together, and as shown in FIG. The vertical members 26b, 26b are welded to the vertical members 26b, 26b. At the upper and lower ends of the vertical members 26b and 26b,
Guide rollers 28, 28, 28, 28 are pivoted to engage with and roll on the guide rails 16a, 16b. Frame body 26 and forks 27a, 27b
The range in which it can be raised and lowered is regulated by a stopper (not shown). The upper horizontal member 26a is provided with a long wire insertion hole 29, and the lower horizontal member 26a is provided with a wire insertion hole 30 whose diameter tapers downward. A resin material is adhered to the inner surface of the insertion hole 30.

Forks 27a, 27b welded to the frame 26
is formed into an L-shape consisting of a vertical portion and a horizontal portion, and the horizontal portion is inserted into a hanging ring 38 or a pallet 41 provided on the upper part of a hanging device 37, which will be described later. fork 27a, 27
The center portion of the horizontal portion b is configured to be bendable upward, as shown by the dashed line on the left side of FIG. Therefore, even if the crane 9 moves to a position where the crane saddle 7 and the stopper 31 provided at the end of the running rail 4 come into contact, the fork 27
The tips of the horizontal portions a and 27b are designed not to contact the side wall 2 of the hold 1.

32a and 32b are hoisting wire ropes that are wound around the drum 23 of the hoisting machine 13, and the upper end side of the wire ropes 32a and 32b is a sheave 33 that is rotatably attached between the two side plates 19.
a, 33b so as to be guided and wound around the drum 23. Sheave 33a, 33
b is mounted so as to be movable in a direction parallel to the axial direction of the drum 23.

The lower end portions of the wire ropes 32a, 32b pass through long insertion holes 29 and insertion holes 30 formed in the horizontal members 26a, 26a of the fork frame 26, and hang down from both outside sides of the girder 8. wire rope 32
Stoppers 34a, 34b are provided at the lower ends of a, 32b.
Hooks 35a, 35b having a
It is formed in a size and shape that can abut against the lower surface of a. As shown in FIG. 3, a connecting member 36 having a universal function, such as a spring, is removably attached between the stoppers 34a and 34b.

Therefore, when using the hoisting machine 13, the electric motor 20 is energized by operating a push button switch or a wirelessly operated transmitter (not shown). Then, the braking force of the brake 21 is released and the drum 23 is rotated at a reduced speed, thereby winding up the hoisting wire rope 32a or 32b. Normally, a hanging ring 38 fixed to the upper part of a hanging device 37 that holds the cargo W is
Hook 35a or 35b is engaged, and hoisting machine 1
Cargo handling is performed by rotating the drum 23 of No. 3 in forward and reverse directions.

In this case, the hooks 35a and 35b are connected to the connecting member 3.
6, it is possible to prevent the unused hook 35b or 35a from swinging as much as possible. Next, when the connecting member 36 is removed and the hook 35a or 35b is hoisted up by the drum 23 of the hoisting machine 13, the upper surface of the stopper 34a or 34b collides with the lower surface of the horizontal member 26a on the lower side of the fork frame 26. After that, the stopper 34a or 34b
Since the fork frame 26 is lifted up while remaining in contact with the lower horizontal member 26a, the fork 27a or 27b can be raised to the height position shown by the dashed line on the right side in FIG.

Next, an example of a procedure for actually carrying cargo W into the hold 1 using this cargo handling device will be described with reference to FIGS. 4 to 6.

1. First, as shown in Fig. 4, the cargo W is suspended from the hook 40 of the hoisting wire rope 39 of the cargo lifting device (not shown) installed on the deck of the reefer ship, and the cargo W is suspended from the hatch hole H into the cargo hold. Cargo W on the bottom 1a of 1
will be brought in one by one.

2 Next, the cargo W carried into the bottom 1a of the hold 1 is loaded while being arranged in an orderly manner over the entire bottom 1a of the hold 1. That is, the hook 35a of the cargo handling device is connected to the hanging ring 38 of the hanging tool 37.
By hanging the drum 23 and rotating the drum 23,
After hoisting the cargo W, the first stage is loaded from both left and right sides toward the center in FIG. 4 while the crane 9 is traveling or traveling. Load the second and third stages in the same way.

At that time, even if the crane 9 reaches both ends of the traveling rail 4, the forks 27
By bending and shortening the horizontal portions of forks a and 27b, the crane 9 can travel to every corner of the hold 1 without the tips of the forks 27a and 27b coming into contact with the side wall 2 of the hold 1.

3 Once the third stage has been loaded in this way,
The fourth stage is a fork 27 as shown in Figure 5.
With the tip side of the fork 27a in a horizontal position,
is inserted into the hanging ring 38 of the hanging device 37 to remove the cargo W.
While lifting the container, load it as described above.

4 As shown in FIG. 6, the fifth tier, which is the highest tier, carries the cargo W into the hold 1 with the cargo W loaded on the pallet 41, and then transports the cargo W into the hold 1.
7a is inserted into the pallet 41, and the cargo W is loaded while being lifted.

5 In the above manner, the space area in which the crane 9 can travel is loaded as much as possible, and the last remaining space near the hatch hole H is filled with hatch holes H.
By directly loading cargo W from the cargo hold 1.
All cargo W has been brought into the interior.

In addition, when carrying out the cargo W loaded in the hold 1, it is sufficient to carry out the procedure in reverse to the above-mentioned carrying-in procedure.

(Effects of the invention) As explained above, according to the invention, although the structure is simple, cargo can be loaded higher than the bottom surface of the girder, so dead space in the hold is almost eliminated and loading efficiency can be increased.
In addition, unlike conventional stacker cranes, there are no posts or other members below the girder, so there is no need to secure a running space for them, which significantly improves work efficiency and greatly contributes to preventing cargo from collapsing. There is also.

[Brief explanation of the drawing]

Figure 1 is a front view showing one embodiment of the present invention;
The figure is an enlarged front view showing the main parts of Fig. 1, Fig. 3 is an enlarged sectional view taken along line A-A in Fig. 1, and Fig. 4 is the first stage using the cargo handling equipment shown in Fig. 1. Figure 5 is a schematic side view of Figure 1 showing the state when cargo is loaded onto the fourth stage using the cargo handling device shown in Figure 1. , and FIG. 6 is a schematic side view of FIG. 1 showing a state when cargo is loaded onto the fifth stage using the cargo handling apparatus of FIG. 1. 1... Hold, 2... Side wall, 4... Running rail,
8... Girder, 9... Crane, 11... Traverse rail, 13... Hoisting machine, 14... Trolley, 16
a, 16b...Guide rail, 26...Frame, 2
7a, 27b...Fork, 29...Elongated insertion hole,
30...Insertion hole, 32a, 32b...Wire rope for hoisting, 34a, 34b...Stopper, 35
a, 35b...futsuk.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) The girder of a crane that runs on traveling rails laid on the upper part of both side walls in the hold is composed of a single girder, and the trolley of the hoisting machine that runs along the girder is provided with the Guide rails are fixedly positioned on both outer sides of the girder so as to extend in the vertical direction, and forks are provided on the guide rails so as to be movable up and down, and for hoisting the two wires to be wound up on the drum of the hoisting machine. The lower end side of the wire rope is passed through an insertion hole drilled in the frame holding the fork and hangs down from both outsides of the girder,
A cargo handling device for use in a refrigerated cargo hold, characterized in that a hook having a stopper is fixed to the lower end of the wire rope, and the stopper is shaped so as to be able to abut against the lower surface of the frame. (2) A cargo handling device for a refrigerated cargo hold as set forth in claim 1 of the utility model registration claim, characterized in that the intermediate portion of the horizontal portion of the fork is configured to be bendable.