JPH0581519B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a chain-type wave-dissipating block relocation device used for pulling up wave-dissipating blocks such as tetrapods and hexapod blocks installed underwater.

[Prior art] A conventional device of this kind, disclosed in Japanese Utility Model Application Publication No. 59-120785, has a belt hooked to the end face of one of the three legs, and a belt suspended at approximately the center of the wave-dissipating block. A wave dissipating block relocation device connected to a belt is disclosed. In addition, Utsukai Showa 61-
Publication No. 88982 describes a hanging fitting that is hung from the main winding wire of a lifting machine such as a crane and attached to the side of an upwardly facing leg provided on a tetrapot, and a hanging fitting that is attached to the side of an upwardly facing leg provided on a tetrapod, and a hanging fitting that is attached to the side of an upwardly facing leg of a tetrapot that is suspended from the main winding wire of a lifting machine such as a crane. A tetrapot relocation device is disclosed that includes support fittings that are hooked to the ends of the legs.

[Problems to be Solved by the Invention] In the case of the above-mentioned prior art in which the wave-dissipating block is moved by bringing the belt into contact with the end face of the leg, the belt must be manually wound around the wave-dissipating block, which is a labor-intensive task. In addition, there is a concern that the belt may come off because it utilizes the frictional force between the belt and the end surface of the leg of the wave dissipating block.

Further, in the case of the conventional technique in which the distal end surface of the leg is fixed with a hanging metal fitting, there is a problem in that this attachment work requires manpower and work efficiency is low.

Furthermore, with the conventional technology of relocating individually arranged blocks on land, it is not possible to relocate blocks piled up underwater underwater, or even if it is applied forcefully, the work efficiency is significantly reduced. , not practical. In other words, if the blocks are slanted, such as blocks piled up underwater, work efficiency will be reduced or relocation will be impractical.
There are problems with using such conventional techniques. Another problem is that it is difficult to confirm whether a block hidden behind another block is being held securely.

SUMMARY OF THE INVENTION An object of the present invention is to provide a chain-type wave-dissipating block relocation device that solves the above-mentioned problems, saves labor, and can reliably lift wave-dissipating blocks piled up in the water.

[Means for Solving the Problems] The present invention includes a lifting wire member suspended from a lifting machine such as a crane, and a pair of left and right arms that are openably and closably suspended from the lower end of the lifting wire member. , an opening/closing drive device attached to the arm to open and close the arm; and a winding wire member having one end connected to the lower part of the one arm and the other end passing through the lower part of the other arm and suspended from the lifting machine side. It is equipped with the following.

[Operation] With the above configuration, the wire member for winding is fed out, the wire member for winding is wound around one leg of the wave-dissipating block, and the arm is moved to wrap the wire member for winding around the other leg. The arm is wound while the arm is closed, and while this state is maintained, the lifting wire member is pulled up and relocated.

[Example] Next, an example of the present invention will be described with reference to the accompanying drawings.

Reference numeral 1 denotes a crane serving as a lifting device installed on a barge 1A, and this crane 1 is telescopic and can swing left and right, and a lifting wire member 2 made of wire, chain, resin, etc. is attached to this crane 1. The base end of this lifting wire member 2 is connected to a winch 3, and the distal end is suspended from the distal end of the crane 1. Reference numerals 4 and 5 denote a pair of left and right arms connected to the ends of the lifting wire member 2, which are approximately L-shaped and whose upper ends are rotatably connected to a shaft 6, and which are connected to the main winding wire 2. The ends are connected. Reference numeral 7 denotes an opening/closing drive device such as a hydraulic cylinder which is pivotally connected to the pair of arms 4, 5, and the arms 4, 5 can be opened/closed by expanding and contracting the opening/closing drive device.

Reference numeral 8 denotes a winding wire member such as a chain or wire. One end 8A of this winding wire member 8 is connected to the lower end of one arm 4, and the other end 8B is connected to the lower end of the other arm 5. The winch 10 of the barge 1A is attached to the barge 1A via the guide 9 provided at the tip of the crane 1.
It is connected to the. Note that 5C is a ring fixed to the lower part of the lower punch 5B and through which the winding wire member 8 passes, 11 is a downward remote control television camera attached to the lower rods 4B and 5B, and 11A is a monitor television.

Next, the operation of the above structure will be explained.

As shown in FIG. 2A, the opening/closing drive device 7 is extended to open the pair of left and right arms 4, 5, and the winding wire member 8 is let out by the winch 10, and in this state, the winch 3 is used to let the lifting wire The strip member 2 is let out and lowered into the water. Then, as shown in FIG. 2B, the monitor television 11A
The wire member 8 for winding is moved back and forth, left and right by the crane 1 while watching the winding wire member 8, and the wire member 8 for winding is wound and latched around one leg 13 of the wave-dissipating block 12.

Next, as shown in FIG. 2C, the arms 4 and 5 are moved upward toward the leg 14 by the crane 1, and as shown in FIG. Bring the lower rods 4B and 5B close together until the opening/closing drive device 7 is retracted and the upper rod 4
Close A, 5A. As a result, wave dissipating block 1
The two legs 13 and 14 of No. 2 are wound around the winding wire member 8 in a cross-like manner. After this, the winding wire member 8 is rolled up by the winch 10, and the wave-dissipating block 12 is narrowed by the winding wire member 8,
The wave-dissipating block 12 is held. And Figure 2 E,
As shown in F, the lifting wire member 2 is wound up by the winch 3 and the wave-dissipating block 12 is relocated.

As described above, in the embodiment, one winding wire member 8 provided on the pair of left and right arms 4, 5
Since the wave-dissipating block 12 is wound and held by drawing out the wave-dissipating block 12, the crane 1 and the winches 3 and 10 can be operated without the need for manpower.

In addition, since the winding wire member 8 has a linear and flexible structure, it can easily fit into the slight space between the wave-dissipating blocks 12 that are stacked randomly. I can do it.

Further, since the arms 4 and 5 are equipped with an opening/closing drive device 7 to open and close the arms 4 and 5, the winding wire member 8 can be easily latched onto the other leg 14. can.

Furthermore, the winding wire member 8 whose one end 8A is connected to one of the lower rods 4B is connected to the crane 1 side through the lower part of the other lower rod 5B, so that the winding wire member 8 is suspended in an arc shape. Therefore, one leg 13 can be easily latched.

Note that the present invention is not limited to the above-mentioned embodiments, and various modifications can be made, such as forming the arm with an upper rod and a lower rod, or installing an opening/closing drive device between the lower rods of a pair of arms. be.

[Effects of the Invention] The present invention includes a lifting wire member suspended from a lifting machine such as a crane, a pair of left and right arms suspended from the lower end of the lifting wire member so as to be openable and closable,
An opening/closing drive device that is attached to the arm and opens and closes the arm, and a winding wire member that has one end connected to the lower part of the one arm and the other end of which is suspended from the lifting machine side through the other lower part. As a result, the winding wire member can be attached to the wave-dissipating block without the need for manpower, work efficiency can be improved, and the wave-dissipating block can be reliably relocated.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, and FIG. 1 is a front view, FIG. 2A is a front view showing the first stroke, FIG. 2B is a front view showing the second stroke, and FIG. 2C is a front view. is the third
FIG. 2D is a front view showing the fourth stroke, FIG. 2E is a perspective view showing the fifth stroke, and FIG. 2F is a front view of the same. DESCRIPTION OF SYMBOLS 1... Crane (lifting machine), 2... Lifting wire member, 4, 5... Arm, 7... Opening/closing drive device, 8... Winding wire member.

Claims (1)

[Claims] 1. A lifting wire member suspended from a lifting machine such as a crane, a pair of left and right arms suspended from the lower end of the lifting wire member so as to be openable and closable, and an opening/closing device attached to the arm to open and close the arm. A chain type fire extinguisher, characterized in that it comprises a drive device, and a winding wire member whose one end is connected to the lower part of the one arm and whose other end is suspended from the lifting machine side through the lower part of the other arm. Wave block relocation device.