JPH0544982U - Sling device - Google Patents

Abstract

(57) [Summary] [Purpose] To be able to efficiently and safely perform slinging work for large chips storage bags. [Structure] A holding rod 12 is attached to each intermediate portion 2b of four wire ropes 2 having the same length, which are hung from a crane hook 1, and the portion 2b is linearly held. Holding rod 1
2 are attached to an annular body 13 made of an elastic material at an appropriate interval, and the lower end portions 2c of the wire ropes are held in a suspended state in a state where they match the mutual intervals of the hook portions 3a of the chip accommodating bag 3. Let The ring-shaped body 13 is elastically deformed by the rope tension when the chip storage bag 3 is lifted by the wire ropes 2 and does not hinder the tension of the wire ropes 2.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a slinging device for suspending an object to be suspended by a plurality of wire ropes suspended from a suspender such as a crane hook.

[0002]

[Prior Art]

 Generally, as shown in FIG. 6, this type of sling device is made by suspending four wire ropes 2 of the same length from a hanging tool 1 such as a crane hook, and the lower end annular portion 2a of each wire rope 2 is suspended. The hook 3 is hooked and connected to a hook 3a provided at a suspension fulcrum of the object 3 to be suspended, and then the suspended object 1 is operated to suspend and transfer the object 3 to be suspended.

That is, the suspended object 3 is, for example, a swarf containing bag as shown in FIG. 6, and when the bag 3 is loaded and unloaded on the truck bed, the lifting tool 1 is brought onto the bag 3 to remove the wire rope. 2 is hung at the approximate center of the hook group 3a, and then the lower end annular portion 2a of each wire rope 2 is artificially guided to the hook portion 3a and hooked on the hook portion 3a. By operating the hanging tool 1, the bag 3 is suspended and transferred.

[0004]

[Problems to be solved by the device]

 However, since the wire ropes 2 ... hang vertically from the hanger 1 and gather at one place, when lifting the suspended object 3, the lower end portions of the wire ropes 2 ... 3a: It requires a cumbersome and troublesome human work such as guiding to a position, and the work efficiency is extremely poor.

In addition, when the object to be hung is large like the chip storage bag 3 and it is on the truck bed and the hanging fulcrum 3a is located at a high place, it is long. Even if a hand hook or the like is used, it is not possible to guide or engage the hook 3a of the wire rope 2 from outside the back 3, so that the operator 4 must perform the guide or engagement work. It is necessary to enter the back 3, which is troublesome and extremely dangerous. For example, since the worker 4 moves while working on the chips 5 contained in the bag 3, there is a risk of being injured by sharp chips, and even a fall on the chips 5 may cause serious injury. Will be done. In addition, although the back 3 on the truck bed comes in and goes out from the dedicated deck, there is a risk that the worker 4 falls or falls at that time.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a slinging device capable of efficiently and safely performing slinging work.

[0007]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the sling device of the present invention is attached to each wire rope, and in particular, a holding rod for holding at least the rope portion except the lower end side portion in a linear state, and these holding rods are substantially the same. An annular body made of an elastic material, which is attached to the height portion and can keep the distance between the portions at a predetermined interval as long as rope tension above a certain level does not act.

[0008]

[Action]

 The ropes that are held in a straight line by the holding rods do not gather and hang down from the hanger directly below it, but rather are held in a diffusing state with the hanger at the top. The lower end part of the wire rope that does not receive the hang will hang down while being separated from each other. The mutual distance between the lower end portions of these wire ropes can be arbitrarily set by changing the attachment position of the holding rod to the annular body.

Therefore, if the mutual spacing of the lower end portions of the wire ropes is matched with the mutual spacing of the suspension fulcrums of the object to be suspended, the rope guide work can be performed by bringing the lifting tool onto the object to be suspended. It is possible to position the lower end portions of the wire ropes in the vicinity of the suspension fulcrums, respectively, without the need for.

In such a state, even when the position of the suspension fulcrum is high, the operator can easily and safely engage the wire rope with the suspension fulcrum from a position outside the object to be suspended. be able to.

After the hooking work is completed, when the wire rope is tensioned by raising the lifting tool, the annular body is elastically deformed by the rope tension and the same as in the case where the holding rod and the annular body are not provided. The object to be hung can be satisfactorily lifted. That is, the holding rod and the annular body do not hinder the grounding and hoisting of the suspended object.

Further, when the suspended object is lowered to a desired position and the tension of the wire rope is released, the annular body elastically returns to return and hold the wire rope to the original state. Therefore, it is possible to easily remove the wire rope from the suspension fulcrum. Moreover, since the wire rope detached from the suspension fulcrum does not move largely like a pendulum to a position directly below the hanging device, the wire rope does not collide with the suspended object or the like, which is safe.

[0013]

【Example】

 Hereinafter, the structure of the present invention will be specifically described with reference to the embodiments shown in FIGS. This embodiment relates to an example in which the present invention is applied to a slinging device used for loading and unloading the large-sized chip storage bag 3 mentioned at the beginning.

That is, as shown in FIG. 1, the slinging device 11 of this embodiment is attached to four wire ropes 2 of the same length, which are hung from a hanging tool 1 such as a crane hook, and each wire rope 2. , And an annular body 13 made of an elastic material attached to the holding rods 12 ...

As shown in FIGS. 1 and 2, each holding rod 12 is made of a metal pipe that is shorter than the wire rope 2 by an appropriate amount. By being attached to the rope 2, the wire portion 2 is fixedly attached to the intermediate portion 2b of the wire rope 2, and this rope portion (hereinafter referred to as "first rope portion") 2b is held in a straight state. As shown in FIG. 4, the mounting bracket 14 is provided with U-shaped strips 14a having screw rods 14c and 14c welded to both ends and support strips 14b and 14b welded to the holding rod 12, respectively. 14a is engaged with the wire rope 2, each screw rod 14c is inserted through the support piece 14b, and the nut 14d screwed to each screw rod 14c is tightened. It is designed to be fixed in bondage.

As shown in FIG. 1 and FIG. 2, the annular body 13 is formed by connecting wire ropes in an annular shape, and is horizontally attached to the holding rods 12 ... There is. As shown in FIG. 5, each mounting member 15 includes a support piece 15a welded to an appropriate position on the upper end side of the holding rod 2 and a fixing piece 15c attached to the support piece 15a by a bolt and a nut 15b so that the mounting angle can be adjusted. , U-shaped strips 15e having screw rods 15d and 15d welded to both ends, the strips 15e are engaged with the annular body 13 and the screw rods 15d are inserted through the fixing pieces 15c. The nut 15f screwed to each screw rod 15d is tightened, and the annular body 13 is tightly bound and fixed by the strip 15e, so that the holding rod 12 can be attached to an appropriate position of the annular body 13. ing. Therefore, the first rope portion 2b held in a straight line by the holding rods 12 does not hang vertically from the suspending tool 1 but has the suspending tool 1 as the apex, as shown in FIGS. 1 and 2. It will hang down in a dispersed manner along the conical surface. On the other hand, a lower end side portion (hereinafter, referred to as a "second rope portion") 2c extending from the first rope portion 2b to the annular portion 2a hangs vertically from the lower end of the holding rod 12. Thus, the mutual spacing of the second rope portions 2c ... Is adjusted by adjusting the mounting position of the holding rods 12 ... Attached to the annular body 13 by the mounting metal fittings 15 ... (Furthermore, if necessary, the holding rods 12 ... Can be changed arbitrarily (by adjusting the attachment position of the wire rope 2 to the wire rope 2 and the attachment angle to the annular body 13). Try to match the spacing. By the way, the annular body 13 is elastically deformed so that when the rope tension of a certain amount or more is applied to the wire ropes 2, ..., The suspension action of the wire ropes 2 ,. (See Fig. 3). Therefore, as a wire rope that is a constituent material of the annular body 13, at least the wire ropes 2 are subjected to tension by its own weight (including the own weight of the holding rod 12, the annular body 13, and the mounting brackets 14 and 15). Use a material that has an elastic shape-retaining force so that it will not be deformed by the extent that it is present. Further, the mounting angle of the fixing piece 15c is adjusted so that the rope portion (hereinafter referred to as "third rope portion") 2d extending from the hanger 1 to the first rope portion 2b is substantially in line with the first rope portion 2b. deep.

When the chip accommodating bag 3 is loaded and unloaded on the truck bed by the sling device 11 configured as described above, the mutual intervals of the second rope portions 2c ... Are set in advance to the hook portion 3a of the chip accommodating bag 3. After being roughly matched with the mutual interval of the ..., the hanger 1 is returned to the back 3 to position the second rope portions 2c ... In the vicinity of the hook portions 3a. To lower the annular portion 2a of each wire rope 2 to a position where it can be engaged with each hook portion 3a (see FIG. 1).

Then, each of the annular portions 2a is hooked on each of the hook portions 3a. In this work, since the annular portions 2a ... Are located in the vicinity of the hook portions 3a and it is not necessary to guide each annular portion 2a to the position of the hook portions 3a, the second rope portion 2c having the annular portion 2a is required. With the fact that the holding rod 12 does not receive the holding action and the original flexibility is ensured as it is, the worker can perform it very easily from the outside of the bag 3. Of course, when the back 3 is placed on the truck bed, even when the hooks 3a are located at a high place, it can be performed from the outside of the back 3 by using a hand hook or the like. .. Therefore, the worker does not have to go in and out of the bag 3, and the work can be performed efficiently and safely.

Thus, after the work of engaging the annular portions 2a ... With the hook portions 3a is completed, the lifting tool 1 is lifted to lift the bag 3 and transfer it to a desired place (see FIG. 3). At this time, when the wire ropes 2 ... Are tensioned as the lifting device 1 rises, the rope tension causes the wire ropes 2 ... I'm nervous. Therefore, the existence of the holding rods 12 ... And the annular body 13 does not hinder the ground cutting and lifting of the back 3.

After that, the back 3 is hung at a desired place, and even after the back 3 is grounded, the hanging tool 1 is slightly lowered, and then the back 3 is detached from the annular portion 2a ... the hook portion 3a. Complete loading and unloading work on the loading platform. At this time, when the tension of the wire ropes 2 ... Is released, the annular body 13 elastically returns to the annular state, and the second rope portions 2a ... Vertically hang with mutual intervals corresponding to the intervals of the hook portions 3a. It will be retained and returned to the state where it was reset. Therefore, the annular parts 2a ... Can be easily removed. Moreover, since the wire rope 2 detached from the hook portion 3a does not largely move like a pendulum to the position directly below the suspending tool 1, the wire rope 2 moving by the pendulum may collide with the back 3 or the like. Not safe.

The configuration of the slinging device 11 according to the present invention is not limited to the above-described embodiment, and can be appropriately improved and changed without departing from the basic principle of the present invention.

For example, it is not necessary that the entire annular body 13 is made of an elastic material, and only a part (for example, a portion between the attachment points of the holding rods 12 ...) Is made of an elastic material. Good. As the elastic material, a leaf spring, a coil spring or the like can be used in addition to the wire rope. Further, the annular body 13 does not have to be a circular ring shape, and may be an elliptical ring shape, a rectangular ring shape, or the like depending on the arrangement of the suspension fulcrums 3a of the object 3 to be suspended.

By the way, at least the lower end portion of the wire rope 2 can be extended over a necessary and sufficient length in order to smoothly engage the lower end portion 2a of the wire rope with the suspension fulcrum 3a of the object 3 to be suspended. Flexibility must be ensured, but there are no such restrictions for other rope parts. Therefore, the holding rod 12 may have a length that holds the third rope portion 2d in a straight state.

Further, the present invention is applied to a slinging device used when three or more wire ropes 2 having the same length are connected to a suspension fulcrum such as a hook 3a of a suspended object 3. It can also be applied to sling devices that use two wire ropes 2 ... and sling devices that use wire ropes 2 that have different lengths. Furthermore, a suspended object that does not have a special suspension fulcrum, It is also possible to apply to a slinging device or the like in which both ends of a wire rope passed under the object to be suspended 3 are hooked and connected to the wire ropes 2 ...

[0025]

[Effect of the device]

 As is clear from the above description, according to the sling device of the present invention, it is possible to suspend a plurality of wire ropes in a state of being dispersed from a suspending tool, so that it is possible to suspend a large chip storage bag or the like. It is possible to perform slinging work efficiently and safely on objects.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a sling device according to the present invention.

FIG. 2 is a front view thereof.

FIG. 3 is a perspective view showing an operation state different from that in FIG.

FIG. 4 is an exploded perspective view showing a connecting portion between a wire rope and a holder.

FIG. 5 is an exploded perspective view showing a connecting portion between a holding body and an annular body.

FIG. 6 is a perspective view showing a conventional sling device.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Hanging tool, 2 ... Wire rope, 2b ... 1st rope part (rope part hold | maintained in a linear state by the holding rod), 2
c ... second rope portion (lower end side portion of wire rope that is not held by the holding rod), 3 ... chip storage bag (suspended object), 3a ... hook portion (hanging fulcrum), 11 ... sling device, 12
... holding rod, 13 ... annular body, 14, 15 ... mounting metal fittings.

Front page continued (72) Inventor Koji Akashi 1-chome, Mizushima Kawasaki-dori, Kurashiki-shi, Okayama (without street number) Inside Kawatetsu Iron & Steel Industry Co., Ltd. None) Kawatetsu Steel Construction Co., Ltd.

Claims (1)

[Scope of utility model registration request] 1. A sling device for suspending an object to be suspended by a plurality of wire ropes suspended from a suspending tool such as a crane hook, which is attached to each wire rope,
Holding rods for holding at least the rope portion except the lower end side portion in a linear state, and an elastic material attached to these holding rods and capable of holding the mutual spacing between the mounting locations at a predetermined interval unless rope tension above a certain level acts. And a ring-shaped body made of metal.