JP2020093871A - Hitch suspension tool and long article conveyance device - Google Patents

Abstract

To provide a hitch suspension tool difficult to be hooked in a long article during a hitching operation.SOLUTION: A hitch suspension tool 4 for suspending a steel material S which is a long article comprises: a wire 41 that is a linear member for supporting the steel material S; and a coil elastic member 42 that is rotatably provided to the outer peripheral part of the wire 41 to serve as a guide member for guiding the steel material S in a direction intersecting the wire 41. As the coil elastic member 42 rotates to guide the steel material S to a prescribed place during a hitching operation, the hitch suspension tool 4 becomes difficult to be hooked in the steel material S.SELECTED DRAWING: Figure 2

Description

TECHNICAL FIELD The present invention relates to a sling for hanging slings and a long object transporting device including the sling for slinging.

In a factory or the like, a long object, for example, a plurality of steel materials cut into an appropriate length and bundled with a wire called a number wire may be transferred by a transfer device such as a crane.
BACKGROUND ART When transporting a plurality of steel materials using a transport device, a slinging operation is performed in which the steel materials are loaded onto a linear sling for hanging slings or unloaded from the sling for slinging.
In order to improve the efficiency of slinging work, automation of the transfer device is required.

As a transfer device, a pair of support frames are hung so that they can travel on a long beam, and the support frame includes a horizontal rod and a suspension arm whose upper ends are rotatably provided at both ends of the horizontal rod. There is a conventional example including a hanging rope provided at the lower end of the hanging arm (Patent Document 1).
In the conventional example of Patent Document 1, the suspension rope is composed of a belt, a chain, and the like in order to collectively support a plurality of long objects such as steel rods.

JP, 2004-35194, A

In the conventional example of Patent Document 1, since the hanging rope is formed of a linear member such as a belt and a chain, when a heavy long object is loaded on the linear member and is unloaded from the hanging tool. In some cases, the linear member cannot be smoothly moved to a predetermined position by rubbing against a long object. In this case, since the worker intervenes to move the linear member to a predetermined position, there is a problem that the slinging work cannot be performed efficiently.

For example, when slinging work is performed in a state where a plurality of long objects are bundled with a wire, slinging work cannot often be performed efficiently. Since a bundle of long objects is tied with a wire, both ends are twisted after crawling the central part of the wire along the outer periphery of the bundle of long objects, but both ends after twisting become the peripheral surface of the long object. Projects against. If both ends of the wire face downward, the linear member tends to be caught on both ends of the wire during sling work, and sling work cannot be performed efficiently.

An object of the present invention is to provide a slinging device for slinging and a slinging device for transporting slender products that are unlikely to be caught by a slender product during slinging work.

The sling for slinging according to the present invention is provided with a linear member that supports a long object, and is rotatably provided on an outer peripheral portion of the linear member to guide the long object in a direction intersecting with the linear member. And a guide member.

In the present invention, in order to load a long long object, the sling for slinging is positioned outside from the edge of the long object along the axial direction, and then located on the center side of the long object. Move to the desired location. Moreover, in order to unload the long object, the sling for slinging is moved toward the outside along the axial direction from the predetermined position of the long object.
Here, even if the sling for slinging is caught on a long object, the guide member rotates with respect to the linear member, so that the slinging for slinging is guided to a predetermined position of the elongated object.
For example, when performing slinging work with a plurality of long objects bundled with wire, even if both ends of the wire are facing downward, the guide member becomes a linear member with the movement of the sling for slinging. Since it rotates with respect to the wire, the sling for slinging passes under the both ends of the wire, and the sling for slinging long objects can be smoothly guided to the long object.
Therefore, in the present invention, since the guide member is rotatably provided on the linear member that supports the long object, the sling for hooking is unlikely to be caught by the long object during slinging work, and the predetermined position Will be guided smoothly.

In the present invention, the guide member preferably has a coil-shaped elastic member.
In this configuration, the coil-shaped elastic member elastically deforms, but since this elastic deformation follows the outer shape of the long object, the guide member can be guided more smoothly to the long object. Furthermore, the coil-shaped elastic member is elastically deformed along the outer peripheral shape of the long object, so that the weight of the long object is not concentrated on a specific place. Therefore, the coil-shaped elastic member is not crushed, and the durability of the guide member can be improved.

In the present invention, the coil-shaped elastic member is preferably a tension spring.
With this configuration, in the tension spring, the helical portion of the spring is in close contact with the tension spring when it is not subjected to a force, so that the long object can be smoothly guided. That is, if there is a gap in the spiral portion of the spring, the protrusion on the outer periphery of the long object may be caught in the gap and the protrusion may not be smoothly guided. For example, in the case of loading a plurality of long objects bound by wire, both ends of the wire may be caught in the gap of the spiral part, and the sling for slinging may not be smoothly guided. In the tension spring, since the spiral portion is in close contact, the protrusion and both end portions do not enter the gap, and it is possible to secure the guide of the sling for slinging to the long object.

The long object transporting device of the present invention includes a sling for hanging slings having the above-described configuration, a first suspension arm having a lower end connected to one end of the linear member, and a lower end at the other end of the linear member. A second suspension arm connected to the support member, a support member on which the upper end side of the first suspension arm and the upper end side of the second suspension arm are rotatably supported, and the support member has a longitudinal direction. And a beam member that is movably provided on the.

In the present invention, in order to load a long object, the support member is moved with respect to the beam member, and the first hanging arm and the second hanging arm are rotated to make the sling for slinging a long object. Move it to a predetermined location below.
After moving the beam member to a predetermined position in a state where the long object is hung on the sling for hanging, the long object is unloaded. For unloading, after lowering the central part of the long object to a predetermined place, the support member is moved, or the first suspension arm and the second suspension arm are rotated with respect to the support member. Remove the hanging device for slinging from the long object.
Even when the sling for slinging is caught on a long object in the work of loading and unloading, as described above, since the guide member rotates with respect to the linear member, slinging work can be performed smoothly.
Therefore, in the present invention, since the above-mentioned configuration is adopted as the sling for slinging, it is possible to provide the long object transporting device capable of automating the slinging work.

1 is a front view of a long object transporting device according to a first embodiment of the present invention. The side view of a long object conveyance apparatus. The perspective view which shows the principal part of the sling for slings concerning 1st Embodiment. The front view which shows the principal part of the sling for slings. The front view which shows the sling for slings concerning 2nd Embodiment of this invention.

An embodiment of the present invention will be described with reference to the drawings.
[First Embodiment]
A first embodiment of the present invention will be described based on FIGS. 1 to 4.
(Outline of long object transporter)
FIG. 1 and FIG. 2 show the overall configuration of the long object transporting device according to the first embodiment.
1 and 2, the long object transporting apparatus includes a beam member 1, a pair of supporting members 2, a pair of arms 3, a sling 4 for slinging, a supporting member moving mechanism 5, and a rotating mechanism 6. And an opening/closing mechanism 7.
Above the beam member 1, a beam moving mechanism (not shown) for moving the beam member 1 in the longitudinal direction and the vertical direction is provided.
Rails 11 for guiding the support member 2 are provided on both side surfaces of the beam member 1 along the longitudinal direction of the beam member 1.

Each of the pair of support members 2 has a case 20, and a wheel 21 rotatably provided on the case 20 and rolling on the rail 11.
The case 20 has a first case portion 22 arranged below the beam member 1 and second case portions 23 provided on both left and right sides of the first case portion 22.
The second case portion 23 is a plate-shaped member that rotatably supports the wheels 21.

The pair of arms 3 includes a first suspension arm 31 whose upper end is rotatably supported by one of the left and right second case portions 23, and an upper end by the other second case portion 23. A second suspension arm 32 whose part is rotatably supported.
The first suspending arm 31 and the second suspending arm 32 each have a base end portion 30A arranged on the second case portion 23 side and a tip end portion 30B arranged on the sling hanging device 4 side. The tip portion 30B is rotatably provided with respect to the base portion 30A.
A connection link 33 is provided between the base end portion 30A of the first suspension arm 31 and the base end portion 30A of the second suspension arm 32.
The connection link 33 is provided with a mechanism (not shown) that allows the first suspension arm 31 and the second suspension arm 32 to open and close.

The support member moving mechanism 5 is a drive source 50 including a motor, and an interlocking mechanism that is connected to the drive source 50 and moves the support member 2, the arm 3 and the sling 4 for slinging along the longitudinal direction of the beam member 1 (FIG. (Not shown).
The rotating mechanism 6 has a cylinder 61 provided between the first case portion 22 and the connecting link 33, and a cylinder drive portion (not shown) that drives the cylinder 61, and the cylinder 61 is driven forward and backward. As a result, the arm 3 rotates in the vertical plane.
The opening/closing mechanism 7 has a cylinder 71 fixed to the connecting link 33 and an opening/closing link mechanism 72 connected to the cylinder 71 and the arm 3. The tip end portion 30B of the arm 3 is driven by driving the cylinder 71 forward and backward. They open and close (see Figure 2).

(Structure of sling 4 for slinging)
The sling hanger 4 is for suspending the steel material S as a long object. One end of the sling 4 for slinging is connected to the lower end of the first hanging arm 31, and the other end of the sling 4 for slinging is connected to the lower end of the second suspending arm 32.
A plurality of steel materials S is bundled into a bundle, and the bundle is bundled with a wire W called a wire. The wires W are bundled by crawling along the outer circumference of the bundle and then twisted at both end portions, and the both end portions WO after twisting project from the peripheral surface of the steel material S.

A specific configuration of the sling 4 for slinging is shown in FIGS. 3 and 4.
3 and 4, the sling 4 for slinging is a wire 41 as a linear member that supports the steel material S, and a coil-shaped elastic member as a guide member that is rotatably provided on the outer periphery of the wire 41. 42 and. The coil-shaped elastic member 42 guides the steel material S in a direction intersecting with the wire 41. The wire 41 and the coil-shaped elastic member 42 are each made of metal.
The diameter of the wire 41 is an appropriate dimension, for example, 16 mm.

The coil-shaped elastic member 42 is a tension spring, and the helical spring is in close contact with the tension spring when no force is applied.
The outer diameter of the coil-shaped elastic member 42 is an appropriate dimension, for example, 40 mm, and the thickness (diameter) of the spring itself is, for example, 5 mm. A predetermined gap is formed between the inner circumference of the coil-shaped elastic member 42 and the outer circumference of the wire 41.
The wire 41 has a region A capable of supporting the steel material S, and blank regions B on both sides of this region A. The length of the region A is equal to the length of the coil-shaped elastic member 42.
The length of the margin area B is appropriately set, and may be 0, for example. That is, in the present embodiment, the length of the region A capable of supporting the steel material S and the length of the coil-shaped elastic member 42 may be equal.

[Sliding work]
Next, a slinging operation using the long object transporting device of this embodiment will be described.
First, a plurality of steel materials S are bundled into one bundle, and the bundles of steel materials S are bundled at both ends from a center of a predetermined length with a wire W. Then, a plurality of bundles of the steel materials S bound by the wire W are placed on a pallet (not shown).
Next, for loading, a long object transporting device is arranged right above the steel material S on which a plurality of bundles are placed, and the opening/closing mechanism 7 is operated to operate the first suspension arm 31 and the second suspension arm. 32 and 32 are opened and the sling 4 for slinging is stretched. Further, at least one of the support member moving mechanism 5 and the rotating mechanism 6 is operated in advance so that the sling 4 for slinging is located away from the end of the steel material S to the outside along the axial direction.

In this state, the supporting member moving mechanism 5 and the rotating mechanism 6 are operated to move the sling 4 for slinging to a predetermined position of the steel material S to carry a load. Here, even when the steel material S is caught on the sling 4 for slinging, the coil-shaped elastic member 42 is elastically deformed in both the radial direction and the axial direction along the outer shape of the bundle of steel materials S. While rotating around the wire 41.
Even if both end portions WO of the wire W face downward, the coil-shaped elastic member 42 rotates with respect to the wire 41 as the sling 4 for slinging moves, so that the both end portions WO below Then, the sling 4 for slinging goes through (see FIGS. 3 and 4), and the coil-shaped elastic member 42 is smoothly guided to a predetermined position of the steel material S.

Then, when the beam member 1 of the long object transporting device is lifted, the steel material S is suspended from the sling 4 for slinging. The plurality of bundles of the steel material S are conveyed to a predetermined position while being suspended by the sling 4 for slinging.
At a predetermined position, the central portion of the plurality of bundles of the steel material S is placed on a pallet or the like (not shown), and the unloading is performed. By lowering the beam member 1 and operating the opening/closing mechanism 7, the sling 4 for slinging is loosened. Then, the supporting member moving mechanism 5 and the rotating mechanism 6 are operated to remove the sling 4 for slinging from the steel material S.
When detaching the sling hanger 4 from the steel material S, even if the sling hanger 4 is caught on the steel material S, the coil-shaped elastic member 42 rotates around the wire 41 as described above. 4 will come off from the steel material S smoothly.

[Effect of Embodiment]
(1) A wire 41 as a linear member that supports the steel material S, and a coil-shaped elastic member that is rotatably provided on the outer peripheral portion of the wire 41 and that guides the steel material S in a direction intersecting the wire 41. 42, and the sling 4 for slinging was comprised. Therefore, during the slinging work, the slinging device 4 for slinging is less likely to be caught by the steel material S, so that the slinging implement 4 is smoothly guided to a predetermined location.

(2) Since the coil-shaped elastic member 42 elastically deforms along the outer peripheral shape of the steel material S, the weight of the steel material S applied to the coil-shaped elastic member 42 is evenly distributed without being concentrated at a specific location. Therefore, the coil-shaped elastic member 42 is not crushed and high durability can be obtained.

(3) Since the coil-shaped elastic member 42 is a tension spring, the spiral portion of the spring is in close contact with the coil-shaped elastic member 42 when no force is applied. Therefore, when a plurality of the steel materials S bundled by the wire W guides one bundle of the steel material S, there is little possibility that both ends WO of the wire W are caught in the gap of the spiral portion and the sling 4 for slinging cannot be smoothly guided.

(4) Since the length of the region A capable of supporting the steel material S of the wire 41 and the length of the coil-shaped elastic member 42 are equal, the steel material S is coiled regardless of the position of the steel material S. The elastic member 42 is surely supported.

(5) The sling 4 for slinging, the first suspension arm 31 and the second suspension arm 32 whose upper ends are connected to both ends of the wire 41, and the upper ends of the first suspension arm 31 and the second suspension arm 32. Since the long object transporting device is configured to include the support member 2 whose side is rotatably supported and the beam member 1 in which the support member 2 is movable in the longitudinal direction, the beam member 1 is configured. After moving the support member 2 with respect to, the first hanging arm 31 and the second hanging arm 32 are rotated to move the sling 4 for slinging to a predetermined position below the steel material S, thereby slinging work. It is possible to provide a long object transporting device that can achieve automation of the above.

[Second Embodiment]
A second embodiment of the present invention will be described based on FIG.
The second embodiment is different from the first embodiment in the structure of the guide member, and the other structures are the same as those in the first embodiment. In the description of the second embodiment, the same components as those in the first embodiment are designated by the same reference numerals and the description thereof will be omitted.
In FIG. 5, the slinging device 40 for slinging of 2nd Embodiment has the wire 41 which supports the steel material S, and the cylinder 45 as a guide member rotatably provided in the outer peripheral part of the wire 41.
One end of the wire 41 is connected to the lower end of the first suspension arm 31, and the other end of the wire 41 is connected to the lower end of the second suspension arm 32. Other configurations of the long object transporting device of the second embodiment are the same as those of the first embodiment.
The tubular body 45 is a member made of steel that guides the steel material S in a direction intersecting the wire 41, and a plurality of the tubular bodies 45 are arranged side by side along the area A in which the steel material S can be supported.
A predetermined gap is formed between the inner circumference of the cylindrical body 45 and the outer circumference of the wire 41.

In the second embodiment, similarly to the first embodiment, in order to load the steel material S, the sling 40 for slinging is positioned outside the steel material S and then moved toward a predetermined position of the steel material S. .. In order to unload the steel material S, the sling 40 for slinging is moved outward from a predetermined position of the steel material S and removed.
In these slinging operations, even if the sling hanger 40 is caught on the steel material S, the tubular body 45 rotates with respect to the wire 41, so that the sling hanger 40 is guided to a predetermined position of the steel material S. Become.

In the second embodiment, the same effects as (1), (4), and (5) of the first embodiment can be obtained, and the following effects can be obtained.
(6) Since the guide member is the cylinder 45, the structure of the guide member itself can be simplified.

[Modification]
It should be noted that the present invention is not limited to each of the above-described embodiments, and modifications, improvements, etc. within the scope of achieving the object of the present invention are included in the present invention.
For example, in each of the above-described embodiments, the first suspension arm 31 and the second suspension arm 32, whose upper ends are connected to both ends of the wire 41, and the upper end sides of the first suspension arm 31 and the second suspension arm 32, respectively. The long object transporting device is configured to include the support member 2 rotatably supported by the beam member 1 and the beam member 1 provided with the support member 2 movably in the longitudinal direction. The configuration of the scale conveying device is not limited to the above embodiment, and includes, for example, the beam member 1 and the first suspension arm 31 and the second suspension arm 32 fixed to the beam member 1. May be

Further, the linear member is not limited to the wire 41, and may be a belt, a chain or the like.
Further, the long object is not limited to the steel material S, and if it is relatively heavy and long and slender, it can be hung with the slings 4 and 40 for slinging of the present invention.
Even if the long object is the steel material S, it can be applied to the case where a plurality of long objects are suspended without being bundled by the wire W. For example, when the steel material S having the unevenness formed on the circumferential surface is slid, the coiled elastic member 42 and the tubular body 45 are guided to a predetermined position without being caught by the unevenness of the steel material S.

Further, in the first embodiment, the tension spring is used as the coil-shaped elastic member 42, but a compression spring having a gap in the spiral portion may be used when no force is applied.
Furthermore, when a spring is used as the coil-shaped elastic member 42, the coil-shaped elastic member 42 is not limited to one, and may be composed of a plurality of members arranged side by side along the linear member.

DESCRIPTION OF SYMBOLS 1... Beam member, 11... Rail, 2... Support member, 20... Case, 21... Wheel, 31... 1st suspension arm, 32... 2nd suspension arm, 4, 40... sling for slinging, 41... Wire (Linear member), 42... Coil-shaped elastic member (guide member), 45... Cylindrical body (guide member), 5... Support member moving mechanism, 6... Rotating mechanism, 7... Opening/closing mechanism, S... Steel material (long) Shaku)

Claims (4)

A linear member that supports a long object,
A slinging tool for slinging, comprising: a guide member that is rotatably provided on an outer peripheral portion of the linear member and that guides the elongated object in a direction intersecting with the linear member. In the sling for hanging according to claim 1,
The said guide member has a coil-shaped elastic member. The sling for slinging characterized by the above-mentioned. In the sling for hanging according to claim 2,
The coil-shaped elastic member is a tension spring. The sling for hanging according to any one of claims 1 to 3, a first suspension arm whose lower end is connected to one end of the linear member, and the other end of the linear member. A second suspension arm whose lower end is connected to, a support member on which an upper end side of the first suspension arm and an upper end side of the second suspension arm are rotatably supported, respectively, and the support member is A long object transporting device, comprising: a beam member movably provided in a longitudinal direction.

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