JP2022098568A - Hanging tool - Google Patents

Abstract

To provide a hanging tool capable of easily performing a detailed operation with the same feeling as bucket operations of a hydraulic excavator and capable of suitably loading/unloading and transporting a flexible container bag.SOLUTION: A hanging tool according to the present invention is used by being attached to the arm of a hydraulic excavator. The hinging tool includes a base part pivotally supported and rotatably held by the tip of the arm and a bucket cylinder connection link, an arm part extending from the base part, and a hand part. The arm part has an enfolded-shaped concave portion which bends at its elbow and crouches on its wrist. The hand part has a T-shaped hook tooth on its head part.SELECTED DRAWING: Figure 1

Description

The present invention relates to a hanger that is mounted on a hydraulic excavator and can be suitably used for loading and unloading and transferring a flexible container bag.

In recent years, damage caused by disasters such as earthquakes, heavy rains, and typhoons involves the disposal of large amounts of waste and contaminated soil, making it difficult to recover and restore the status quo. Such wastes and the like are temporarily accumulated and stored in large quantities, and flexible container bags are used as a means for this. Rough terrain cranes, buckets, hydraulic excavators equipped with grapples, etc. are used for loading and unloading and transferring flexible container bags, but various proposals for efficiently handling such a large number of flexible container bags have been made. It is made.

For example, in Patent Document 1, a hook hole is provided between the handle and the contained object by sucking the handle of the bag having the handle in an inverted state and pulling up the handle while the contained object is accommodated. Proposed a bag suspension device equipped with a suction means for forming a bag, a hooking means for being hooked on a handle by being inserted into a hook hole, and a lifting means for lifting a bag by lifting the hooking means hooked on the handle. Has been done. This bag-hanging device can lift the handle even when the handle of the bag containing the object is laid down, and the hooking means is hooked on the pulled handle to lift the bag. Is possible.

Patent Document 2 describes a grapple having a pair of gripping members that are rotatably pivotally supported at a base end portion and configured to grip a thing at the tip end portion, and the tip portions of the gripping members face each other. It has a pair of plate-shaped first members and a second member, and each of the first members is provided with an elastic plate-shaped second member at least a part on the gripping surface side. As the second member, a grapple having a shape extending to the outside of at least a part of the outer peripheral edge of the first member has been proposed. It is said that this grapple can be inserted into the narrow gap of the flexible container bag without damaging the flexible container bag, and can reliably hold the flexible container bag that is easily deformed.

Similarly, Patent Document 3 proposes an attachment (grapple) for a hydraulic excavator, which is characterized in that a holding portion for holding a flexible container bag has a curved ladder shape or a grid shape. The attachment for this hydraulic excavator can lift the object to be processed by holding it from the bottom side, and even if the hanging belt of the flexible container bag or its base is worn or damaged, the flexible container bag It is said that it can be safely lifted and transferred without biting the claws into the container.

Patent Document 4 describes a hanger adapter that is gripped and held by a grapple, which is a kind of attachment arranged at the tip of an arm of a hydraulic excavator, and has a straight rod-shaped gripping substrate gripped by the grapple and the grip. A pair of support rings rotatably mounted at positions closer to the inside by a predetermined distance from both ends of the substrate, and a pair of connected bodies of the same length fixedly formed and integrated on each support ring. , A hanger adapter comprising a beam in which the connecting bodies are fixedly connected in parallel with the gripping substrate and a hook mounting portion provided at an intermediate position of the beam has been proposed. Since this hanger adapter is used by gripping it with the grapple of a hydraulic excavator, it is said that it is possible to perform the work of grasping the object to be processed and the work of lifting and moving it quickly and surely if necessary.

Japanese Unexamined Patent Publication No. 2014-234277 Japanese Unexamined Patent Publication No. 2019-112230 Utility model registration No. 3218760 Gazette Japanese Patent No. 6130584

The bag hanging device described in Cited Document 1 does not require manpower to pull up the handle of the bag and is preferable in terms of safety. However, there is a problem that it is not always easy to operate the hanging strap provided with the iron attracted means by the claw-shaped magnet provided at the tip of the bucket. The grapples described in Patent Documents 2 to 4 or the hanging tools using grapples are preferable because they can be loaded and unloaded regardless of the state of the handle of the flexible container bag. However, the grapple has a problem that the device itself is large and bulky, and it is not easy to perform detailed operations and load / unload the integrated flexible container bag.

In view of such conventional problems, the present invention can easily perform detailed operations with the same feeling as the bucket operation of a hydraulic excavator, and can suitably perform loading / unloading and transfer of flexible container bags. The purpose is to provide a hanger.

The hanger according to the present invention is a hanger used by being attached to an arm of a hydraulic excavator.
The hanger has a base portion pivotally supported and rotatably held by the tip portion of the arm and the bucket cylinder connecting link, and an arm portion and a hand portion extending from the base portion, and the arm portion is an elbow portion. It has a holding shape that bends at and bends at the wrist, and the wrist has a T-shaped hook tooth at the head.

In the above invention, it is preferable that the arm portion has a hook for preventing accidental detachment that is pivotally supported by the wrist portion and swings, and also has a storage portion for fixing and accommodating the hook for preventing accidental detachment.

Further, the hand portion may have a tooth adapter integrally joined to the hand portion main body extending from the arm portion and a hook tooth detachably joined to the tooth adapter.

Further, the hook tooth has a head in which the claw head and the claw head protrude in a T shape, and a top curved portion, a claw curved portion, and a claw curved portion provided with serrations, respectively. can do.

It is preferable that the hanging tool is interchangeable with the bucket of the hydraulic excavator, has a structure capable of equivalent operation, and can perform loading / unloading and transfer work of the flexible container bag.

According to the hanging tool according to the present invention, the flexible container bag can be suitably loaded and unloaded and transferred without the need for an assistant to operate the handle of the flexible container bag.

It is explanatory drawing of the hydraulic excavator to which the suspending tool which concerns on this invention is attached. It is explanatory drawing which shows the morphological similarity between the hanger and the bucket of a hydraulic excavator which concerns on this invention. It is a schematic diagram which shows the structure of the hanging tool which concerns on this invention. It is a schematic diagram which shows the wrist part and the hook tooth part of the hanging tool of FIG. It is a schematic diagram which shows the hook tooth part of the hanging tool of FIG. It is a plan view and the side view which shows a partial cross section. It is explanatory drawing of the loading / unloading or transfer procedure of the flexible container bag using the hanging tool shown in FIG. It is explanatory drawing which shows various gripping states of the flexible container bag using the hanging tool shown in FIG.

Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings. The hanger according to the present invention is used by being attached to a hydraulic excavator as shown in FIG. That is, the hanger 10 is attached to the tip of the arm 2 of the hydraulic excavator 1 and used. Then, the hanger 10 is finely operated by the flexible container bag 20 by driving the bucket cylinder connecting link 5 by the bucket cylinder 4. As shown in FIG. 2, the hanger 10 has a similar outer diameter shape according to the side view in which the hanger 10 and the bucket 6 are overlapped, and the hanger 10 is similar to the bucket 6 mounted on the hydraulic excavator 1. The same operation can be performed.

As shown in FIG. 3, the hanger 10 has a base portion 11 pivotally supported by the arm 2 and the bucket cylinder connecting link 5 and rotatably held, and an arm portion 12 and a hand portion 13 extending from the base portion 11. Have. The arm portion 12 has a holding shape that bends at the elbow portion 121 and bends at the wrist portion 122, and has a shape that holds the bucket 6. The hand portion 13 has a hook tooth 135 having a T-shaped head.

The base 11 has a common structure for mounting the arm 2 so that the hanger 10 and the bucket 6 can be exchanged with each other. As shown in the cross section of FIG. 3 (b) AA, the arm portion 12 has a solid structure having a flange on the top and bottom, and the hand portion main body 130 extends from the wrist portion 122. Similarly, the hand portion main body 130 has a solid structure having a flange on the top and bottom as shown in the cross section of FIG. 3 (b) BB. A storage portion 125 is provided on the upper surface portion of the wrist portion 122, and the accidental detachment prevention hook 15 is rotatably held around the shaft 155. The base 11, the arm 12, and the hand body 130 of the hanger 10 can be integrally molded.

FIG. 4 shows a portion of the hanger 10 from the wrist portion 122 to the hook tooth 135. The hook tooth 135 is joined to the hand body 130 via the tooth adapter 131. The tooth adapter 131 can be integrally joined to the hand body 130 by welding. FIG. 4B shows the shapes of the hand portion main body 130 and the tooth adapter 131 at the joint portion. Then, as shown in FIG. 5, the hook tooth 135 can be detachably joined to the tooth adapter 131 with a pin 136. The mounting portion of the hook tooth 135 to the tooth adapter 131 can have a mounting structure equivalent to that of the claw of the bucket 6, and in this case, the pin 136 can be the same as the pin used for the bucket 6. For safety when storing the hanger 10, the accidental detachment prevention hook 15 can be stored in the storage unit 125 by hanging the linchpin 156 (FIG. 4).

As shown in FIG. 5, the hook tooth 135 has a claw head 135a and a claw head 135b protruding in a T shape, and a top curved portion 135c1 and a claw curved portion 135c2 provided with serrations, respectively. It also has a claw bend 135c3. As described below, the hook tooth 135 can perform delicate operations on the handle 25 of the flexible container bag 20 due to its shape and serrations.

FIG. 6 shows an example of loading / unloading work of the flexible container bag 20 using the hanger 10. As shown in (1), the handle 25 of the flexible container bag 20 is in a folded state on the top surface of the flexible container bag 20. For this reason, the top surface of the flexible container bag is pressed using the hook head 135b of the hook tooth 135 (2) to create a gap at the bottom of the handle 25 (3). Then, the handle 25 is passed through the handle 25 so as to knit the head of the hook tooth 135 with a knitting needle (4 to 6), and the handle 25 is hooked on the claw bending portion 135c2 (7). Then, the handle 25 is moved to the wrist portion 122, which is a stable position, and hooked on the accidental detachment prevention hook 15 (8). As a result, the flexible container bag 20 can be safely loaded and unloaded or transported.

When loading / unloading or transferring the flexible container bag 20 with the hanger 10, it may be desired to hold / dispose the flexible container bag 20 at a desired height or position. In such a case, as shown in FIG. 7, the hanger 10 can be in the normal inner lifting state (1 to 5) and the outer lifting state (6 to 9) in the inverted state. Then, the handle 25 of the flexible container bag 20 can be hooked on the elbow portion 121 (1 to 3) and the wrist portion 122 (4, 5), and can be hooked on the accidental detachment prevention hook 15. can do.

1 hydraulic excavator
2 arm
4 bucket cylinder
5 Bucket cylinder connecting link
6 bucket
10 hanging tools
11 base
12 Arms
121 Elbow
122 Wrist
125 storage
13 Hands
130 Hand body
131 Tooth Adapter
135 Hook Tooth
135a claw head
135b Claw head
135c1 Top curve
135c2 Claw curve
135c3 Tsuchizume bending part
135d foot
136 pins
15 Accidental removal prevention hook
155 axes
156 Linchpin
20 Flexible container bag
25 handle

Claims (5)

A hanger that is used by attaching it to the arm of a hydraulic excavator.
The hanger has a base portion pivotally supported and rotatably held by the tip portion of the arm and the bucket cylinder connecting link, and an arm portion and a hand portion extending from the base portion.
The arm has a holding shape that bends at the elbow and bends at the wrist.
The hand portion is a hanging tool having a T-shaped hook tooth on the head. The first aspect of the present invention is characterized in that the arm portion has a hook for preventing accidental detachment that is pivotally supported by a wrist portion and swings, and also has a storage portion for fixing and accommodating the hook for preventing accidental detachment. The hanging tool described in. The first or second aspect of the present invention, wherein the hand portion has a tooth adapter integrally joined to the hand portion main body extending from the arm portion and a hook tooth detachably joined to the tooth adapter. Hanging tool. The hook tooth is characterized by having a claw head and a claw head protruding in a T shape, and a claw bending part, a claw bending part, and a claw bending part provided with serrations, respectively. The hanging tool according to any one of claims 1 to 3. The hanger according to any one of claims 1 to 4, which has a structure that can be exchanged with a bucket of a hydraulic excavator and can be operated in the same manner, and can perform loading / unloading and transfer work of a flexible container bag. ..

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