JP3664787B2 - Luggage hanging jig - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a hanging jig for remotely attaching / detaching a hook to / from the load when moving a heavy load with a crane.
[0002]
[Prior art]
As a method of installing caisson consolidation blocks into the sea during breakwater construction, loading the consolidation blocks on a trolley and towing them on the site, installing them on a crane ship, loading them on a crane ship, towing and installing them on a truck There are known methods for transporting the land and installing it on a crane ship. In any case, it is the diver's hands to remove the bottom hook of the rope hung on the crane hook from the rooting block that has been lowered into the sea. Depending on the work.
[0003]
However, as the crane ship moves up and down by waves, the hook engaged with the root block is rapidly pulled up, so the above work is very dangerous for divers. Moreover, since the root block is hung by four ropes, it takes time to finish removing all the hooks from the above block if there is only one diver, and in the case of multiple divers, it is necessary to adjust the breathing of all members. There were difficulties and anyway there was a risk of waves coming in between. More recently, the breakwater construction has been carried out in the deep water and high wave areas offshore more than before, and the risk has tended to increase further.
[0004]
[Problems to be solved by the invention]
The present invention can be used to suspend the load by interposing between a heavy load such as a root block, a wave-dissipating block, an L-shaped block, and a center block and a crane hook. A jig for suspending a load, which can be attached to and detached from the load by land operation or remotely from a ship even when it is submerged in water, is provided.
[0005]
[Means for Solving the Problems]
A jig for suspending a load according to the present invention is a jig for suspending the load by interposing between a load having a plurality of suspension rings projecting from an upper surface and a crane hook. A plurality of engaging devices including a swingingly supported loading hook for hooking on a ring and a hook opening / closing hydraulic cylinder for opening / closing the hook, and a sealing unit containing a hydraulic unit for driving the hydraulic cylinder A container, and a support frame for fixing the sealed container, and the engagement device is attached to the load hook, a hydraulic cylinder suspended above the load hook, and a piston of the hydraulic cylinder A toggle mechanism that connects the rod tip and the upper end of the loading hook to generate a large force at the lower end of the loading hook with a small force of the hydraulic cylinder, and the hydraulic cylinder, the toggle mechanism, and It consists of a frame which supports the hook over, The frame is composed of a plate that covers the side surface of the loading hook in a closed state extending below the lower end of the loading hook, The plurality of engagement devices are attached to the support frame in an arrangement corresponding to the suspension ring on the luggage and so as to have a gap in the upper and lower sides, and the upper ends of the plurality of engagement devices are It is connected to the lower end of the lower rope that is suspended almost vertically from the crane hook of the crane via the multiple upper ropes and hanging beams, so that the hydraulic unit can be controlled remotely from the operation panel on the crane installation side. It is characterized by that.
[0006]
When the above loading hook is in an open state, the crane is operated to lower the hanging jig above the load, and at that time, the position of the engaging device is manually adjusted to engage the engaging device. When the hydraulic cylinder in the engagement device is operated via the hydraulic unit in the sealed container by operating the operation panel, the loading hook is closed. Engage with the suspension ring. Next, after confirming the above-mentioned engagement by visual observation or any means such as a TV camera, the crane is operated to lift the load, move it above the destination, lower it while aligning it, and load the load Then, when the hydraulic cylinder is operated through the hydraulic unit by operating the operation panel, the loading hook is opened and detached from the suspension ring. Then, after confirming that the loading hook has been removed from the luggage by visual observation or an arbitrary means such as a television camera, the crane is operated to lift the hanging jig.
[0007]
In this apparatus, since the opening and closing of the loading hook, that is, the loading and unloading with respect to the load is performed by the hydraulic cylinder, the loading and unloading of the plurality of loading hooks is completed in a short time. Since the hydraulic unit for driving the hydraulic cylinder is enclosed in a sealed container fixed to the support frame, the hydraulic system piping is only between the sealed container and the hydraulic cylinder on the same support frame. It is not necessary to extend the space between the closed container and the crane installation side, so that the operation becomes easy and there is no problem even when the suspension jig is submerged. Since the loading hook is connected to the piston rod of the hydraulic cylinder via a toggle mechanism, the loading hook is not easily opened by an external force when the loading hook is closed.
[0008]
Further, the plurality of engaging devices are arranged on the support frame so as to correspond to the hanging ring on the load, and are attached so as to have a space in the upper and lower sides and the bottom, and are suspended substantially vertically from the hanging beam. Since it is connected to the lower end of the rope, even if there is an error in the fixing position of the suspension ring with respect to the load, the engagement device does not tilt and the weight of the load does not add to the support frame. Therefore, the support frame can be reduced in weight to such an extent that it can support the sealed container enclosing the hydraulic unit.
[0009]
Also The frame of the engagement device is formed in a vertically long plate shape Is , Its bottom But Below the lower end of the loading hook Because it is extended, The loading hook can be opened and closed with the lower end of the frame resting on the load, and the frame is formed to cover the side of the closed loading hook. But Formation Because The loading hook is less susceptible to external forces The And above By providing the lower end of the frame with vertical cut grooves that can be loosely fitted to the suspension ring on both sides of the loading hook, the position of the loading hook is further stabilized.
[0010]
The hydraulic unit enclosed in the hermetic container on the support frame is a hydraulic pump, a battery for its power supply, a valve unit that distributes the output of the hydraulic pump to the hydraulic cylinder for opening and closing the hook, and a hydraulic pump based on commands from the operation panel And a control unit for controlling the operation of the valve unit, which eliminates the need for a hydraulic circuit and a power circuit between the operation panel side on the ground or ship and the above-mentioned sealed container, and allows the operation of the suspension jig. The property is further improved.
[0011]
Further, the handle can be fixed to the frame of the engaging device. In this case, when the loaded hook is lowered and engaged with the hanging ring of the load, the operator holds the handle. It can be used for positioning the loading hook, and this positioning operation becomes easy and safety is improved. And, when the attachment height is set so that the lower edge of the handle is located above the lower end of the frame of the engaging device, the luggage suspension ring is fixed to the recess formed on the surface of the luggage In addition, the loading hook can be engaged with the suspension ring without any trouble.
[0012]
In addition, by providing a hook attachment / detachment detection device that emits signals at the closed position and the open position of the loading hook, the opening / closing of the loading hook can be confirmed by receiving the signal. The hook attachment / detachment detection device advantageously uses the movement of the piston rod in the hook opening / closing hydraulic cylinder and outputs detection signals at both ends of the forward / backward stroke.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Embodiment 1
In FIG. 1, reference numeral 1 denotes a caisson root block (luggage), which is formed in a rectangular shape having a length and width of 3500 mm and a height of 1500 mm, and square holes 2 are recessed at the four corners of the upper surface. The letter-shaped suspension ring 3 has a semicircular curved portion facing upward, the curved portion (top) does not protrude from the upper surface of the root block 1, and the diameter direction of the semicircular top is each of the root block 1 and the hole 2. It is fixed to face the diagonal direction.
[0014]
The suspension beam 10 shown above the root block 1 is formed by combining two beams 11 in a cross shape and fixing a square reinforcing plate 12 at the center, and the tip 11a of the beam 11 is suspended from the root block 1. A total of four upper ropes 13 made so as to be positioned almost directly above the ring 3 and connected to the tip 11a are hung on a crane hook (not shown) suspended from the tip of the crane arm to form a cross shape. The suspension beam 10 is suspended horizontally. Then, the engaging device 20 is suspended from the lower end of the lower rope 14 that is suspended from each tip 11 a of the suspension beam 10.
[0015]
As will be described later, the engagement device 20 incorporates a loading hook 39 that is rocked by remote operation and engages with the suspension ring 3 of the root block 1, and the four engagement devices 20. Are connected to the four corners of the substantially square support frame 50 to support the support frame 50 horizontally. However, a clearance is provided in the upper and lower sides and the four sides at the corners of the engagement device 20 and the support frame 50 as described later. And the cylindrical airtight container 60 which incorporates a hydraulic unit is fixed on said support frame 50. As shown in FIG.
[0016]
2 and 3 show the main part of the engagement device 20. The engagement device 20 has two frames 21 and 21 (front side and front side in FIG. 2) made of vertically long plates extending in the vertical direction, and the height direction intermediate between the front and rear frames 21 and 21 is provided. The parts are connected by left and right side plates 22 to form a flat cylindrical shape. The plate-like frame 21 has a width that is narrowed downward below the side plate 22, and the entire thickness spanning the front and rear frames 21, 21 is half of the suspension ring 3 that is planted in the hole 2 of the block 1. It is set smaller than the diameter of the circle (see FIG. 3), and the lower end of the frame 21 is easy to enter the hole 2. In addition, the lower end of the frame 21 (see FIG. 2) is provided with a longitudinal cut groove 21a that can be loosely fitted to the suspension ring 3 from above. On the other hand, the lower rope 14 is connected to the upper end of the frame 21 (see FIG. 3) via the first connecting pin 23, the connecting plate 24, the second connecting pin 25, and the U-shaped metal fitting 26.
[0017]
An upper plate 27 for connecting the front and rear frames 21, 21 is provided below the first connecting pin 23. A hydraulic cylinder 30 is connected to a bracket 28 fixed on the upper plate 27 via a downward arm 29. The piston rod 31 is suspended so that it can swing left and right in FIG. Below the hydraulic cylinder 30 (refer to FIG. 2), a triangular lever 32 that is long in the width direction swings up and down by placing the right end as a fulcrum 33 and the left end as a free end, and the free end is located almost directly below the hydraulic cylinder 30. It is provided movably and is received from below by a contact plate 34a on a stopper 34 fixed to the inner surface of the right side plate 22, and the downward rotation from the horizontal position is stopped.
[0018]
At the free end of the triangular lever 32, two upper and lower pin holes are drilled. The upper pin hole is connected to the lower end of the piston rod 31 by the upper pin 33a, and the lower pin hole is connected to the left side by the lower pin 33b. Horizontal links 35 are connected. However, when the triangular lever 32 is horizontal, the upper pin 33 a is positioned slightly to the left of the hydraulic cylinder 30 and the lower pin 33 b is positioned immediately below the hydraulic cylinder 30. The upper end of the vertical link 37 is connected to the left end of the horizontal link 35 by a connecting pin 36, and the lower end of the vertical link 37 is suspended from the fulcrum 38 directly below the hydraulic cylinder 30. It is fixed to the protrusion 39a. The left and right connecting pins 36, 33b of the horizontal link 35 and the fulcrum 33 of the triangular lever 32 are aligned on a straight line in the horizontal direction at the horizontal position of the triangular lever 32 (see FIG. 2). Since the 35 and the vertical link 37 constitute a toggle mechanism, even if a clockwise rotational force acts on the lower end of the loading hook 39, no upward rotational force is generated on the triangular lever 32.
[0019]
In FIG. 2, the loading hook 39 is formed by bending a protrusion 39a on the left side of the boss, a stem 39b extending substantially linearly downward from the boss, and bending rightward from the lower end of the stem 39b. When the piston rod 31 of the hydraulic cylinder 30 protrudes and the triangular lever 32 occupies a horizontal position, the fulcrum 38 of the loading hook 39 is shown by the solid line 39c. , The lower end of the flange portion 39c floats slightly above the lower ends of the front and rear frames 21, 21, and almost the entire hook 39, in particular, the front end of the flange portion 39c is hidden between the frames 21, 21, When the piston rod 31 is retracted and the triangular lever 32 is tilted upward, the flange 39c escapes to the upper left as indicated by the chain line and appears from between the frames 21 and 21. To have.
[0020]
As shown in FIG. 4, a handle 40 is fixed to the lower half of the engagement device 20. The handle 40 includes a pipe ring 41 that surrounds the lower portion of the engagement device 20, two inverted U-shaped pipe main frames 42 that connect the left and right sides of the ring 41, and the main frame 42 and the ring 41. It is formed in a bowl shape that extends downward with a total of four pipe auxiliary frames 43 on the front, rear, left, and right sides of the arc shape to be connected. The upper part of the front main frame 42 is sandwiched between left and right upper metal fittings 44 fixed to the front surface of the front frame 21 and a lower metal fitting 45 bolted to the lower surface thereof (see FIG. 3). The rear main frame 42 is similarly fixed. However, as shown in FIG. 3, when the lower end of the frame 21 is in contact with the bottom of the hole 2 of the rooting block 1, the mounting height of the handle 40 is set so that the ring 41 floats from the upper surface of the rooting block 1. The
[0021]
In FIG. 4, a flange-like stopper 46 is fixed to the upper half of the engaging device 20 in two upper and lower stages. As shown in FIG. 5, the stopper 46 is formed in a rectangular shape with a lateral 47 fixed to the front and back surfaces of the frame 21, and a right and left connecting tool 48 connecting the ends of the front and rear lateral 47. It is fixed to the frame 21 described above. Then, the corners of the support frame 50 are placed on the lower stopper 46.
[0022]
As shown in FIGS. 1, 4 and 5, the support frame 50 is composed of two elongated rectangular frames 51 made of channel steel (in FIGS. 4 and 5, the long side is 51a and the short side Are respectively formed in a shape approximating a square by connecting the adjacent ends of these two frames 51 in order with grooved steel slabs 52. It is. A rectangular vertical hole 54 is formed at the end in the longitudinal direction of the rectangular frame 51 by connecting opposing long sides 51a and 51a with a stay 53 made of channel steel similar to the above. The
[0023]
As shown in FIG. 5, the vertical hole 54 is made larger than the cross-sectional outline of the engagement device 20, and when the engagement device 20 is inserted into the vertical hole 54, the clearance a Is formed. Further, as shown in FIG. 4, the distance between the upper and lower stoppers 46, 46 is made larger than the height of the frame 51 of the support frame 50, and the engagement device 20 is inserted into the vertical hole 54 of the frame 51. When the end of the frame body 51 is placed on the lower stopper 46, a play b is formed between the upper stopper 46 and the frame body 51.
[0024]
As shown in FIG. 6, the hermetic container 60 fixed on the support frame 50 includes a cylindrical body 60a and lids 60b and 60c at both ends thereof, and two viewing windows 60d are provided in the cylindrical body 60a. It is done. Inside the cylindrical body 60a, a battery 61, a control unit 62, a hydraulic pump 63, and a valve unit 64 including eight on-off valves are disposed from the right side. The battery 61 is for the power source of the hydraulic pump 63 and is formed so as to be rechargeable from the outside. The control unit 62 is connected to an operation panel on a crane ship (not shown) with an operation cable 65 passing through the right lid 60c on the input side, and drives the hydraulic pump 63 by an open / close signal from the operation panel. By controlling the opening and closing of the valve unit 64 connected to the pump 63, one set of two connected to the valve unit 64 and passing through the left lid 60b, a total of four sets of circulation pipes 66a and 66b. Thus, the oil is sequentially distributed and circulated to the four hydraulic cylinders 30 on the engagement device 20.
[0025]
In the above structure, when the rooting block 1 of FIG. 1 is loaded on a marine crane ship and the loading hook 39 of the engaging device 20 is in an open state, the crane is operated to operate the cross-shaped hanging beam 10; This hanging jig composed of the lower rope 14, the engagement device 20, the support frame 50, the sealed container 60 and the like is lowered above a predetermined root-setting block 1, and at that time, the handle 40 is held in the hand, Then, the position of the engagement device 20 is adjusted to align the loading hook 39 with the load hanging ring 3 (see the chain line in FIG. 2), and then the closing hook 39 is closed by operating the push button on the operation panel on the crane ship. When the signal is sent to the control unit 62 on the support frame 50, the hydraulic pump 63 is driven, and the oil is sequentially sent to the hydraulic cylinders 30 in the four engagement devices 20 on the support frame 50 through the valve unit 64. Figure 2 shows the actual And the piston rod 31 is projected as indicated by the loading hook 39 is closed, the hook 39c enters the suspension ring 3 roots compaction block 1.
[0026]
Next, after visually confirming that all the loading hooks 39 are closed, the crane is operated to lift the above-described root-clamping block 1, move it above the target sea level, lower it, and sink it into the sea. If the block 1 is placed at a predetermined position while being held in hand, and then the opening signal of the loading hook 39 is sent to the control unit 62 in the sealed container 60 by operating the push button on the operation panel. Then, the valve of the valve unit 64 is switched, and the piston rod 31 of the hydraulic cylinder 30 in the engagement device 20 is retracted. As a result, the loading hook 39 is opened, and the flange 39c at the lower end is suspended from the root block 1. Escape from ring 3. Then, after visually confirming that all the loading hooks 39 have been detached from the suspension ring 3, the crane is operated to lift the suspension jig and return it to the crane ship.
[0027]
According to the apparatus of the first embodiment, since the four loading hooks 39 are opened and closed by the hydraulic cylinders 30 respectively, the loading hooks 39 can be attached to and detached from the four suspension rings 3 of the rooting block 1 in a short time. It can be carried out. Since the hydraulic pump 63 for driving the hydraulic cylinder 30 is enclosed with the battery 61, the control unit 62, and the valve unit 64 in the sealed container 60 fixed to the support frame 50, the hydraulic piping is the same support frame. It is only necessary between the airtight container 60 and the hydraulic cylinder 30 on 50, and it is not necessary to extend the oil supply pipe between the airtight container 60 and the crane ship, so that the operation becomes easy and the engagement device 20 and the support are supported. There is no problem when the frame 50 and the sealed container 60 are submerged in water. Since the loading hook 39 is connected to the piston rod 31 of the hydraulic cylinder 30 via a toggle mechanism, when the loading hook 39 is closed, the loading hook 39 is not easily opened by an external force.
[0028]
Further, the four engaging devices 20 are attached to the support frame 50 in an arrangement corresponding to the suspension ring 3 on the rooting block 1 so as to have play spaces a and b in all directions, and the suspension beam. 10 is connected to the lower end of the lower rope 14 that hangs almost vertically from the lower rope 10. Even if there is an error in the fixing position of the suspension ring 3 with respect to the root block 1, the lower rope 14 and the engaging device 20 are in the vertical state. Maintained.
[0029]
Further, the frame 21 of the engagement device 20 is formed of a vertically long plate, and its lower end extends below the lower end of the loading hook 39, so that the lower end of the frame 21 is at the bottom of the hole 2 of the rooting block 1. The loading hook 39 can be opened and closed while in contact. Further, the closed loading hook 39 is formed so as to be hidden behind the frame 21 (see FIG. 2), and in particular, since the tip of the flange portion 39c is retracted from the right edge of the frame 21, the hook portion 39c is underwater. The hanging hook 39 is not opened by hitting stones or other objects floating on the door. Further, since the cut groove 21a at the lower end of the frame 21 is fitted to the suspension ring 3 from above on both sides of the loading hook 39, the engagement position of the loading hook 39 is further stabilized.
[0030]
Embodiment 2
FIG. 7 shows a hook attachment / detachment detection device 70 for automatically confirming the opening and closing of the loading hook 39, and this device 70 is added to the first embodiment. That is, the vertical cylinder 72 is fixed to the hydraulic cylinder 30 of the first embodiment via the contact plate 71, and its upper and lower ends are sealed with the top plate 73 and the bottom plate 74, and penetrates the top plate 73 and the bottom plate 74. The slide bar 75 is provided in parallel with the piston rod 31 of the hydraulic cylinder 30 and is movable up and down. The lower end of the slide bar 75 is connected to the connector 31 a at the lower end of the piston rod 31 by a connecting rod 76 in the horizontal direction. A vertically long bracket 77 is fixed on the bottom plate 74, a photoelectric sensor 78 having an optical path perpendicular to the paper surface is fixed at two upper and lower portions thereof, and a striker 79 that blocks the optical path of the photoelectric sensor 78 is provided as described above. An input / output lead wire (not shown) of the photoelectric sensor 78 fixed to the slide bar 75 is inserted into a protective tube 80 connected to the cylindrical body 72, and the control unit 62 in the hermetic container 60 and the operation panel on the ship. Led to.
[0031]
The two photoelectric sensors 78 are installed at intervals equal to the lifting stroke of the piston rod 31. Accordingly, when the loading rod 39 is completely closed and engaged with the suspension ring 3 when the piston rod 31 protrudes as shown in the drawing, the lower photoelectric sensor 78 is blocked by the striker 79, so A completion signal notifying that the hook 39 is completely closed is output to the operation panel on the ship, and for some reason, the engagement of the loading hook 39 becomes incomplete, and the lower photoelectric sensor 78 is not blocked by the striker 79. When the above-mentioned completion signal is not output. Further, when the piston rod 31 is retracted, when the loading hook 39 is opened and the collar portion 39c is completely escaped from the suspension ring 3, the upper photoelectric sensor 78 is blocked by the striker 79, so that the loading hook 39 is completely removed. When the opening signal is output to the operation panel on the ship, and the opening of the loading hook 39 is incomplete for some reason and the upper photoelectric sensor 78 is not blocked by the striker 79, the completion signal is not output. .
[0032]
The sealed container 60 on the support frame 50 has a valve unit 64 as auxiliary means when the loading hook 39 cannot be opened due to a failure of the operation cable 65 extending from the sealed container 60 to the operation panel on the ship. A manual handle for opening the loading hook 39 by manually operating from the outside of the sealed container 60 can be provided.
[0033]
【The invention's effect】
According to the first aspect of the present invention, since the loading hook is opened and closed by the hydraulic cylinder, even when there are a plurality of loading hooks, the loading hook can be opened and closed remotely and in a short time. And since the hydraulic unit for driving the hydraulic cylinder is enclosed in a sealed container fixed to the support frame, it is not necessary to provide hydraulic piping between the sealed container and the crane installation side, and therefore the operation This is easy, and there is no problem even if the hanging jig is submerged in water. Since the loading hook is connected to the piston rod of the hydraulic cylinder via a toggle mechanism, when the loading hook is closed, the loading hook is not easily opened by an external force, which is safe.
[0034]
In addition, a plurality of engagement devices are mounted on the support frame so as to correspond to the suspension ring on the load, and are attached so that there is a space in the upper and lower sides and the engagement device is suspended substantially vertically from the suspension beam. Since the lower rope is connected to the lower end of the lower rope, even if there is an error in the fixing position of the suspension ring with respect to the load, the engagement device is not tilted and the weight of the load is not added to the support frame. Therefore, the support frame can be reduced in weight to the extent that it can support the sealed container enclosing the hydraulic unit.
[0035]
And above The engagement device frame extends below the lower end of the loading hook and covers a side surface of the loading hook that is closed. Because The loading hook can be opened and closed with the bottom edge of the frame resting on the load, and the side of the closed loading hook is protected by the frame. The loading hook is less affected by external force. In particular, the invention described in claim 2 is the jig for hanging a load described in claim 1, wherein Since the lower end is provided with a longitudinal cut groove that can be loosely fitted to the suspension ring from above on both sides of the suspension hook, when engaging the suspension hook with the suspension ring, The position is more stable and the engagement with the suspension ring is ensured.
[0036]
According to a third aspect of the present invention, in the luggage hanging jig according to the first or second aspect, the hydraulic unit in the sealed container opens and closes the hydraulic pump, its power supply battery, and the output of the hydraulic pump. It consists of a valve unit that distributes to the hydraulic cylinder and a control unit that controls the operation of the hydraulic pump and valve unit based on commands from the operation panel. In addition, the power supply circuit becomes unnecessary, and the operability is further improved.
[0037]
The invention described in claim 4 is the load hanging jig according to any one of claims 1 to 3, wherein the handle is fixed to the frame of the engaging device, so that the load in the open state is loaded. When the hanging hook is lowered and engaged with the hanging ring of the load, the operator can easily perform the alignment operation and the safety is improved.
[0038]
According to a fifth aspect of the present invention, there is provided a jig for hanging a load according to any one of the first to fourth aspects, wherein the hook for emitting a signal at the closed position and the open position of the loading hook is attached and detached. Because it is equipped with a detection device, it is not necessary to visually check the open / close state of the loading hook, it is safe, and it may be impossible to confirm due to cloudiness of water as in the case of checking with a TV camera. There is no certainty.
[Brief description of the drawings]
FIG. 1 is an overall perspective view of an embodiment.
FIG. 2 is a front view in which a part of the engagement device is broken.
FIG. 3 is a right side view in which a part of FIG. 2 is broken.
FIG. 4 is a front view of the engagement device in a mounted state.
5 is a cross-sectional view taken along line AA in FIG.
FIG. 6 is a front view of a hydraulic unit.
FIG. 7 is a front view in which a part of the hook attachment / detachment detection device is broken.
[Explanation of symbols]
1: Luggage (consolidation block)
2: Hole
3: Hanging ring
10: Hanging beam
13: Upper rope
14: Lower rope
20: engagement device
21: Frame
21a: cut groove
30: Hydraulic cylinder
32: Triangular lever (toggle mechanism)
34: Stopper
35: Horizontal link (toggle mechanism)
37: Vertical link (toggle mechanism)
39: Loading hook
39a: protrusion
39b: stem
39c: Buttocks
40: Handle
46: Stopper
50: Support frame
51: Rectangular frame
54: Vertical hole
a, b: play
60: Airtight container
61: Battery
62: Control unit
63: Hydraulic pump
64: Valve unit
65: Operation cable
70: Device for detecting hook attachment / detachment
75: Slide bar
78: Photoelectric sensor
79: striker

Claims (5)

In a jig for suspending the load by interposing between a load having a plurality of suspension rings projecting on the upper surface and a crane hook, the load is supported in a swingable manner so as to be hooked on the suspension ring. A plurality of engagement devices including a hook hook and a hydraulic cylinder for opening and closing the hook for opening and closing the hook; a sealed container containing a hydraulic unit for driving the hydraulic cylinder; and a support frame for fixing the sealed container The engagement device connects the loading hook, the hydraulic cylinder attached in a suspended manner above the loading hook, the piston rod tip of the hydraulic cylinder, and the upper end of the loading hook. A toggle mechanism that generates a large force at the lower end of the loading hook with a small force of the hydraulic cylinder, and a frame that supports the hydraulic cylinder, the toggle mechanism, and the loading hook Ri, the frame is made of a plate which covers the luggage hanging side hook state the lower end of the loading hook closed extends downwardly to the support frame above the plurality of engagement devices hanging on the load Mounted so that there is a gap in the top and bottom and four sides, with the arrangement corresponding to the ring, the upper ends of the plurality of engagement devices are almost vertical from the crane hook through the plurality of upper ropes and suspension beams A luggage hanging jig connected to a lower end of a suspended lower rope, wherein the hydraulic unit is controlled remotely from an operation panel on a crane installation side. In hanging jig luggage according to claim 1, the luggage hanging loosely fittable longitudinal notches from the top hanging ring on both sides of the hook is provided on frame under end of the engagement device A jig for hanging luggage. The luggage hanging jig according to claim 1 or 2, wherein the hydraulic unit in the sealed container is a hydraulic pump, a battery for power supply thereof, a valve unit for distributing the output of the hydraulic pump to a hydraulic cylinder for opening and closing the hook, and A luggage hanging jig comprising a control unit for controlling the operation of a hydraulic pump and a valve unit based on a command from an operation panel. The luggage hanging jig according to any one of claims 1 to 3, wherein a handle is fixed to a frame of the engagement device. The luggage hanging jig according to any one of claims 1 to 4, wherein the luggage hanging hook is provided with a hook attachment / detachment detecting device that emits a signal at a closed position and an opened position of the loading hook. Jig.

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