KR102529226B1 - Bucket and nipper attachments for excavators - Google Patents

Abstract

According to the present invention, an attachment for both the bucket and nipper comprises: a bucket tool (100) and a nipper tool (200); and a control assembly (300) which is disposed between the bucket tool (100) and the nipper tool (200), is detachably assembled with a link assembly (20) of an excavator, and can selectively rotate the bucket tool (100) and the nipper tool (200), respectively. In the present invention, since the nipper tool and the bucket tool are installed at the same time, there is an advantage that the worker riding the mini excavator can perform work by selecting either the nipper tool or the bucket tool depending on the work situation without replacing the nipper tool and bucket tool.

Description

Bucket and nipper attachments for mini excavators {Bucket and nipper attachments for excavators}

The present invention relates to an attachment for both a bucket and a nipper for a mini excavator.

The present invention relates to a nipper for heavy equipment that can effectively perform crushing and excavation work at civil engineering and demolition sites by mounting the nipper at the front or rear end of an arm of heavy equipment such as an excavator, bulldozer, and payloader.

In general, heavy equipment used in civil engineering construction sites such as highways, ports, bridges, dams, and urban development is compacted, cut, crushed, and excavated by striking, rotating, and drilling operations. Civil complaints are occurring due to noise, and low-noise, high-efficiency heavy equipment that can solve the noise pollution is required.

In the terrain consisting only of bedrock, it is necessary to use a breaker to break the bedrock, but in the case of soft bedrock, using a breaker does not break the bedrock, but only drills a hole. A nipper is used that has a digging blade that can be sold, and vibrates in an up and down direction like a breaker to break and dig the ground.

In general, nippers for heavy equipment are used to perform crushing and excavation work at civil engineering and demolition sites by mounting the nipper to the tip of an arm of heavy equipment such as an excavator, a bulldozer, and a payloader.

However, after performing the crushing and excavation work through the conventional heavy equipment nipper, the bucket must be re-installed after removing the nipper to treat the crushed bedrock and soil, so the work time required for replacing the attachment is excessive. , there was a problem that the operator had to repeatedly replace the attachment.

Mini excavators have differentiated strengths such as excavation ability, mobility, and rapid location change in a narrow field space, and have the advantage of quickly solving tasks that existing medium and large excavators cannot solve.

In the case of a mini excavator, since it is often necessary to work in a narrow space, it is difficult to provide a space for various attachments, and when attachments must be frequently replaced, work efficiency is extremely reduced.

Republic of Korea Patent No. 10-0755017 Republic of Korea Patent No. 10-1202535 Republic of Korea Patent Publication No. 10-2015-0051327

The present invention has been made to solve the above conventional problems, and an object of the present invention is to provide a bucket and nipper attachment for a mini excavator that can be used in combination with a bucket and a nipper.

The present invention includes a bucket tool 100 and a nipper tool 200; Disposed between the bucket tool 100 and the nipper tool 200, detachably assembled with the link assembly 20 of the excavator, and capable of selectively rotating the bucket tool 100 and the nipper tool 200, respectively. It provides a bucket and nipper combination attachment including; a control assembly 300 that can be used.

The bucket tool 100 includes a first side wall 110 and a second side wall 120 disposed apart from each other in the left and right directions; a connect wall 130 connecting rear edges and bottom edges of the first sidewall 110 and the second sidewall 120; a bucket space 101 disposed between the first sidewall 110, the second sidewall 120, and the connect wall 130; a plurality of bucket protrusions 140 protruding forward from the lower end of the connect wall 130; a first bucket coupling part 150 protruding from the second sidewall 120 to the right and detachably assembled with the control assembly 300; a second bucket coupling part 170 that protrudes leftward from the first sidewall 110 and is detachably assembled with the control assembly 300; a first bucket coupling groove (160) disposed on the first bucket coupling portion (150) and mutually interlocking with the control assembly (300) when rotated; It may include a second bucket coupling groove 180 disposed on the second bucket coupling portion 170 and mutually engaging with the control assembly 300 when rotated.

The nipper tool 200 includes a nipper body 210 for performing work; a nipper head 220 disposed on top of the nipper body 210 and coupled to the control assembly 300; A first nipper coupling part 250 protruding from the right side of the nipper head 220 to the right and detachably assembled with the control assembly 300; A second nipper coupling part 270 protruding from the left side of the nipper head 220 to the left and detachably assembled with the control assembly 300; a first nipper coupling groove 260 disposed on the first nipper coupling portion 250 and interlocking with the control assembly 300; The second nipper coupling groove 280 disposed on the second nipper coupling portion 270 and forming mutually engaging the control assembly 300; may include.

The control assembly 300 includes a control housing 350 having a first hole 351 passing through a right side and a second hole 352 passing through a left side; a first gear 310 disposed inside the control housing 350; a second gear 320 disposed inside the control housing 350; a co-rotating gear 330 meshed simultaneously with the first gear 310 and the second gear 320 and rotating the first gear 310 and the second gear 320 in opposite directions; a drive motor 340 for driving the co-rotating gear 330; a first gear shaft 315 coupled to the first gear 310 and protruding out of the control housing 350 through the first hole 351; A second gear shaft 325 coupled to the second gear 320 and protruding out of the control housing 350 through the second hole 352; may be included.

a first coupling protrusion 316 disposed at an end of the first gear shaft 315 and fitted with the bucket tool 100 or the nipper tool 200; a second coupling protrusion 326 disposed at an end of the second gear shaft 325 and fitted with the bucket tool 100 or the nipper tool 200; The first bucket coupling groove 160 and the second bucket coupling groove 180 are formed in an "I" shape, and the first nipper coupling groove 260 and the second nipper coupling groove 280 are formed in an "I" shape. The first coupling protrusion 316 and the second coupling protrusion 326 are formed in an “I” shape, and the first coupling protrusion 316 is formed in the first bucket coupling groove 160 Alternatively, the first nipper coupling groove 260 may be inserted into and assembled, and the second coupling protrusion 326 may be inserted into the second bucket coupling groove 180 or the second nipper coupling groove 280 to be assembled.

First, in the present invention, since the nipper tool and the bucket tool are installed at the same time, the operator on the excavator can select one of the nipper tool and the bucket tool according to the work situation without replacing the nipper tool and the bucket tool to perform the work. There are advantages to being

Second, the present invention has the advantage of minimizing unnecessary interference during work by operating the control assembly to rotate tools unnecessary for work backward.

Third, since the present invention rotates the nipper tool and the bucket tool in opposite directions through a simultaneous drive gear, there is an advantage in minimizing loss of working time according to tool selection.

Fourth, the present invention has the advantage that the nipper tool and the bucket tool can be installed on both left and right sides.

Fifth, the present invention has the advantage of being able to interlock and fix tools not used for work to the first support bar or the second support bar through the bucket hook and the nipper hook.

Sixth, since the bucket and nipper combination attachment according to the present invention is mounted on a mini excavator and used, it can be used in a narrow space without replacing the nipper and bucket, thereby minimizing the time and space associated with replacing the attachment There are advantages.

1 is a front view of a bucket and nipper combination attachment according to a first embodiment of the present invention.
Figure 2 is a side view of Figure 1;
3 is a perspective view of the bucket tool shown in FIG. 1;
Figure 4 is a perspective view of the nipper tool shown in Figure 1;
5 is a front cross-sectional view of the control assembly shown in FIG. 1;

Hereinafter, embodiments of the present invention will be described in detail so that those skilled in the art can easily practice the present invention with reference to the accompanying drawings. However, the present invention may be embodied in many different forms and is not limited to the embodiments described herein. And in order to clearly explain the present invention in the drawings, parts irrelevant to the description are omitted, and similar reference numerals are attached to similar parts throughout the specification.

Throughout the specification of the present invention, when a certain component is said to "include", it means that it may further include other components without excluding other components unless otherwise stated.

1 is a front view of a bucket and nipper combined attachment according to a first embodiment of the present invention, FIG. 2 is a side view of FIG. 1, FIG. 3 is a perspective view of the bucket tool shown in FIG. 1, and FIG. It is a perspective view of the shown nipper tool, and FIG. 5 is a front sectional view of the control assembly shown in FIG. 1 .

The attachment for combining a bucket and a nipper according to this embodiment may be used by being mounted on an excavator.

The bucket and nipper combination attachment according to this embodiment is assembled to the link assembly 20 in an excavator of a general structure.

The excavator 10 includes a first arm 13, a link rod 12 rotatably assembled in the middle of the first arm 13, and a second arm rotatably assembled with the link rod 12. (14) and a piston rod (11) rotatably assembled with the second arm (14).

As the piston rod 11 moves, the second arm 14 is rotated while being assembled to the link rod 12 .

The link assembly 20 includes a link body 25 rotatably assembled with a first arm 13 and a second arm 14, and a first protruding downward from the bottom surface of the link body 25. It includes a hook 21 and a second hook 22.

The first hook 21 and the second hook 22 are bent in opposite directions, and an attachment of an existing excavator can be assembled to the first hook 21 and the second hook 22.

Reference numeral 15 denotes a pin rotatably connecting the link rod 12 and the second arm 14, and reference numeral 16 denotes a pin rotatably connecting the link rod 12 and the first arm 13. am.

Reference numeral 17 denotes a pin rotatably connecting the link body 25 and the second arm 14, and reference numeral 18 denotes a pin rotatably connecting the link body 25 and the first arm 13. am.

The bucket and nipper combination attachment according to this embodiment is detachably assembled to the first hook 21 and the second hook 22.

The attachment according to the present embodiment is disposed between the bucket tool 100 and the nipper tool 200 and the bucket tool 100 and the nipper tool 200, and is detachable from the link assembly 20 of the excavator. It is assembled and includes a control assembly 300 capable of selectively rotating the bucket tool 100 and the nipper tool 200, respectively.

In this embodiment, the bucket tool 100 is disposed on the right side, and the nipper tool 200 is disposed on the left side. Unlike this embodiment, the positions of the bucket tool 100 and the nipper tool 200 may be reversed.

The bucket tool 100 has a bucket shape capable of digging soft ground or containing soil.

The bucket tool 100 includes first sidewalls 110 and second sidewalls 120 spaced apart from each other in the left and right directions, and rear edges of the first sidewalls 110 and the second sidewalls 120. And the connect wall 130 connecting the bottom edge, the bucket space 101 disposed between the first side wall 110, the second side wall 120 and the connect wall 130, and the connect wall ( 130) includes a plurality of bucket protrusions 140 protruding forward from the lower end.

The first sidewall 110 and the second sidewall 120 may be spaced apart in left and right directions and disposed in parallel. The first sidewall 110 and the second sidewall 120 are formed symmetrically.

Rear edges of the first sidewall 110 and the second sidewall 120 may have an arc shape.

In this embodiment, the connect wall 130 may form the upper, rear and bottom surfaces of the bucket tool 100.

The bucket protrusion 140 is formed in a tooth shape, and a plurality of bucket protrusions 140 may be arranged spaced apart in the left and right directions. The bucket protrusion 140 protrudes forward from the lower front end of the connect wall 130 .

The control assembly 300 is assembled to any one of the first sidewall 110 and the second sidewall 120 .

In this embodiment, the first sidewall 110 is disposed on the left side, and the second sidewall 120 is disposed on the right side.

A control assembly 300 is coupled to the first sidewall 110 .

The bucket tool 100 includes a first bucket coupling part 150 protruding in the right direction from the second side wall 120 and detachably assembled with the control assembly 300, and the first side wall The second bucket coupling part 170 protrudes leftward from 110 and is detachably assembled with the control assembly 300, and is disposed on the first bucket coupling part 150, and when rotated, the control A first bucket coupling groove 160 interlocking with the assembly 300, and a second bucket coupling groove 160 disposed in the second bucket coupling portion 170 and interlocking with the control assembly 300 when rotated. It includes a bucket coupling groove 180.

The first bucket coupling part 150 and the second bucket coupling part 170 protrude in opposite directions. The first bucket coupling portion 150 and the second bucket coupling portion 170 have the same shape and structure.

The shapes of the first bucket coupling groove 160 and the second bucket coupling groove 180 are also the same.

In this embodiment, the first bucket coupling groove 160 and the second bucket coupling groove 180 are formed in an "I" shape.

The first bucket coupling groove 160 is concavely formed from the right side of the first bucket coupling portion 150 to the left, and the second bucket coupling groove 180 is formed from the left side of the second bucket coupling portion 170. It is concave to the right.

The first bucket coupling groove 160 and the second bucket coupling groove 180 form the center of rotation of the bucket tool 100 . The center of rotation of the bucket tool 100 is defined as a first center of rotation C1.

The first bucket coupling groove 160 and the second bucket coupling groove 180 are arranged in a line at the first rotation center C1.

The first bucket coupling groove 160 and the second bucket coupling groove 180 are disposed toward the outside of the bucket tool 100, and in this embodiment, the first bucket coupling groove 160 is open to the right, The second bucket coupling groove 180 is opened to the left.

The bucket tool 100 may be disposed on either the left side or the right side of the control assembly 300 through the first bucket coupling groove 160 and the second bucket coupling groove 180 .

The nipper tool 200 has a nipper shape capable of digging a hard ground.

The nipper tool 200 includes a nipper body 210 that performs work, a nipper head 220 disposed on top of the nipper body 210 and coupled to the control assembly 300, and the nipper head The first nipper coupling part 250 protrudes to the right from the right side of the 220 and is detachably assembled with the control assembly 300, and protrudes to the left from the left side of the nipper head 220, and the control A second nipper coupling part 270 detachably assembled with the assembly 300, and a first nipper coupling groove disposed on the first nipper coupling part 250 and forming mutually engaging with the control assembly 300 260, and a second nipper coupling groove 280 disposed on the second nipper coupling portion 270 and forming mutual engagement with the control assembly 300.

The nipper head 220 is formed in a rectangular parallelepiped shape.

In this embodiment, the first nipper coupling part 250 is disposed on the right side of the nipper head 220, and the second nipper coupling part 270 is disposed on the left side of the nipper head 220.

In this embodiment, the first nipper coupling part 250 and the second nipper coupling part 270 are formed in a cylindrical shape.

The first nipper coupling part 250 and the second nipper coupling part 270 protrude in opposite directions to each other. The first nipper coupling portion 250 and the second nipper coupling portion 270 have the same shape and structure.

The shapes of the first nipper coupling groove 260 and the second nipper coupling groove 280 are also the same.

In this embodiment, the first nipper coupling groove 260 and the second nipper coupling groove 280 are formed in an "I" shape. That is, the first nipper coupling groove 260, the second nipper coupling groove 280, the first bucket coupling groove 160, and the second bucket coupling groove 180 are all formed in the same shape.

The first nipper coupling groove 260 and the second nipper coupling groove 280 form the center of rotation of the nipper tool 200 . The center of rotation of the nipper tool 200 is defined as a second center of rotation C2.

The first nipper coupling groove 260 and the second nipper coupling groove 280 are arranged in a line at the second rotation center C2.

The first nipper coupling groove 260 and the second nipper coupling groove 280 are disposed toward the outside of the nipper tool 200, and in this embodiment, the first nipper coupling groove 260 is open to the right, The second nipper coupling groove 280 is opened to the left.

The nipper tool 200 may be disposed either on the left or right side of the control assembly 300 through the first nipper coupling groove 260 and the second nipper coupling groove 280 .

When the bucket tool 100 and the nipper tool 200 are assembled to the control assembly 300, the first arm 13 and the second arm 14 of the excavator 10 are adjusted to perform work. can

The control assembly 300 rotates either the bucket tool 100 or the nipper tool 200 backward and upward to prevent interference.

When both the bucket tool 100 and the nipper tool 200 are disposed facing downward, the bucket tool 100 interferes with the work when performing the nipper work, and when performing the bucket work, the nipper tool 200 is interfering with work.

The control assembly 300 rotates any one of the bucket tool 100 and the nipper tool 200 so as not to interfere with work.

The control assembly 300 includes a control housing 350 having a first hole 351 penetrating the right side and a second hole 352 penetrating the left side, and a second hole disposed inside the control housing 350. The first gear 310 and the second gear 320 disposed inside the control housing 350 are simultaneously meshed with the first gear 310 and the second gear 320, and the first gear 310 ) And the second gear 320 is coupled to the co-rotating gear 330 for rotating in opposite directions, the driving motor 340 for driving the co-rotating gear 330, and the first gear 310, , a first gear shaft 315 disposed at the first rotation center C1 or the second rotation center C2 and protruding out of the control housing 350 through the first hole 351; It is coupled to the second gear 320, is disposed at the first rotation center C1 or the second rotation center C2, and protrudes out of the control housing 350 through the second hole 352. It includes a second gear shaft 325 to be.

A housing space 355 is formed inside the control housing 350, and the first gear 310 and the second gear 320 are disposed in the housing space 355.

The axial centers of the first gear 310 and the second gear 320 are disposed on the first rotation center C1 or the second rotation center C2.

Each axis center of the first gear shaft 315 and the second gear shaft 325 is disposed on the first rotation center C1 or the second rotation center C2.

The first gear 310 and the second gear 320 are disposed to face each other.

The first gear 310 and the second gear 320 are symmetrical.

The co-rotating gear 330 is disposed above the first gear 310 and the second gear 320 .

The rotation axis C3 of the co-rotating gear 330 is disposed orthogonally to the first rotation center C1 and the second rotation center C2.

The rotation shaft C3 of the co-rotating gear 330 may be arranged in a vertical direction.

The rotational axes of the first gear 310 and the co-rotating gear 330 form an angle of 90 degrees. In addition, each rotation axis of the second gear 320 and the co-rotating gear 330 form an angle of 90 degrees.

The left and right ends of the co-rotating gear 330 are meshed with the upper ends of the first gear 310 and the second gear 320, respectively.

So, when the co-rotating gear 330 rotates, the first gear 310 and the second gear 320 rotate in different directions.

For example, when viewed from the top view, when the co-rotating gear 330 rotates clockwise, the first gear shaft 315 rotates counterclockwise when viewed from the right side, and the second gear shaft 325 ) is rotated clockwise when viewed from the right side.

Conversely, when viewed from the top view, when the co-rotating gear 330 rotates counterclockwise, the first gear shaft 315 rotates clockwise when viewed from the right side, and the second gear shaft 325 When viewed from the right side, it rotates counterclockwise.

So, when either one of the bucket tool 100 or the nipper tool 200 rotates forward, the other one reversely rotates backward.

By rotating the drive motor 340 clockwise or counterclockwise, the operator can select one of the bucket tool 100 and the nipper tool 200 required for work.

Tools that are not required for work can be rotated backwards to block obstruction to work.

The drive motor 340 is disposed on the upper side of the co-rotating gear 330 and is fixed to the inner upper side of the control housing 350 .

A first coupling protrusion 316 fitted with the bucket tool 100 or the nipper tool 200 is disposed at the end of the first gear shaft 315 . In addition, a second coupling protrusion 326 fitted with the bucket tool 100 or the nipper tool 200 is disposed at the end of the second gear shaft 325 .

Since the first coupling protrusion 316 protrudes to the right, it can be inserted and assembled into the first bucket coupling groove 160 or the first nipper coupling groove 260.

Since the second coupling protrusion 326 protrudes to the left, it can be inserted and assembled into the second bucket coupling groove 180 or the second nipper coupling groove 280.

The first coupling protrusion 316 and the second coupling protrusion 326 are formed in an “I” shape.

The control assembly 300 includes a first support bar 360 protruding right from the right side of the control housing 350 and a second support bar 370 protruding left from the left side of the control housing 350. ) may further include.

The bucket tool 100 may further include a bucket hook 190 that engages with the first support bar 360 or the second support bar 370.

In addition, the nipper tool 200 may further include a nipper hook 290 that engages the first support bar 360 or the second support bar 370 with each other.

When the bucket tool 100 is not used for work, the bucket hook 190 interlocks with the first support bar 360 or the second support bar 370 to apply to the drive motor 340 load can be reduced.

In addition, when the nipper tool 200 is not used for work, the nipper hook 290 interlocks with the first support bar 360 or the second support bar 370 so that the drive motor 340 ) can reduce the load applied to it.

The first support bar 360 and the second support bar 370 may be arranged in a line.

The first support bar 360 and the second support bar 370 are disposed rearward and upper than the bucket tool 100 and the nipper tool 200 .

The bucket hook 190 is assembled with a bucket hook body portion 192 extending rearward from the rear surface of the connect wall 130 and the bucket hook body portion 192 to be relatively rotatable, and is curved upward. The first support bar 360 or the second support bar 370 and the bucket hook portion 194 forming mutually engaging, the bucket hook body portion 192 and the bucket hook portion 194 are rotatably coupled. and a first hook pin 195 that is disposed between the bucket hook body portion 192 and the bucket hook portion 194 to provide an elastic force, and a bucket hook elastic member 196.

The bucket hook body 192 is disposed to protrude rearward from the rear surface of the connect wall 130 . The bucket hook body 192 is disposed below the first bucket coupling groove 160 and the second bucket coupling groove 180 .

The first hook pin 195 rotatably connects the bucket hook body part 192 and the bucket hook part 194 and is disposed parallel to the first rotation center C1.

A lower end of the bucket hook part 194 is assembled with the bucket hook body part 192, and an upper end of the bucket hook part 194 engages with the first support bar 360 or the second support bar 370.

The bucket hook portion 194 is concave from the front to the rear.

A bucket hook groove 198 into which the first support bar 360 or the second support bar 370 is inserted is formed in front of the bucket hook part 194 .

In this embodiment, the bucket hook elastic member 196 is a leaf spring.

The bucket hook elastic member 196 is disposed on the upper side of the bucket hook part 194 and the bucket hook body part 192, so that the angle between the bucket hook part 194 and the bucket hook body part 192 is reduced. keep

When the bucket tool 100 rotates backward, the end 194a of the bucket hook part 194 comes into contact with the first support bar 360 or the second support bar 370, and the bucket hook elastic member 196 ), the bucket hook part 194 is rotated backward in a state where it is elastically supported, so that the first support bar 360 or the second support bar 370 is inserted into the bucket hook groove 198.

Conversely, when the bucket tool 100 is rotated forward, mutual engagement between the bucket hook part 194 and the support bars 360 and 370 can be released.

The nipper hook 290 is assembled with a nipper hook body portion 292 extending rearward from the rear surface of the nipper body 210 and the nipper hook body portion 292 to be relatively rotatable, and is curved upward, The first support bar 360 or the second support bar 370 and the nipper hook part 294 forming mutual engagement, the nipper hook body part 292 and the nipper hook part 294 are rotatably coupled. It includes a second hook pin 295 and a niper hook elastic member 296 disposed between the nipper hook body 292 and the nipper hook 294 to provide elastic force.

The nipper hook body 292 is disposed to protrude rearward from the rear surface of the nipper body 210 . The nipper hook body 292 is disposed lower than the first nipper coupling groove 260 and the second nipper coupling groove 280 .

The second hook pin 295 rotatably connects the nipper hook body part 292 and the nipper hook part 294 and is disposed parallel to the second rotation center C2.

The lower end of the nipper hook part 294 is assembled with the nipper hook body part 292, and the upper end forms an interlock with the first support bar 360 or the second support bar 370.

The nipper hook portion 294 is concave from the front to the rear.

A nipper hook groove 298 into which the first support bar 360 or the second support bar 370 is inserted is formed in front of the nipper hook part 294 .

In this embodiment, the nipper hook elastic member 296 uses a leaf spring.

The nipper hook elastic member 296 is disposed on the upper surface of the nipper hook part 294 and the nipper hook body part 292, so that the angle between the nipper hook part 294 and the nipper hook body part 292 is keep

When the nipper tool 200 rotates backward, the end 294a of the nipper hook part 294 comes into contact with the first support bar 360 or the second support bar 370, and the nipper hook elastic member 296 ), the nipper hook part 294 is rotated backward in a state where it is elastically supported, so that the first support bar 360 or the second support bar 370 is inserted into the nipper hook groove 298.

Conversely, when the nipper tool 200 is rotated forward, interlocking between the nipper hook part 294 and the support bars 360 and 370 can be released.

In the detailed description of the present invention, specific embodiments have been described, but various modifications are possible without departing from the scope of the present invention. Therefore, the scope of the present invention should not be limited to the described embodiments and should not be defined, but should be defined by not only the scope of the claims to be described later, but also those equivalent to the scope of these claims.

100: bucket tool 110: first side wall
120: second sidewall 130: connect wall
140: bucket protrusion 150: first bucket coupling part
160: first bucket coupling groove 170: second bucket coupling portion
180: second bucket coupling groove 190: bucket hook
200: Nipper tool 210: Nipper body
220: nipper head 250: first nipper coupling part
260: first nipper coupling groove 270: second nipper coupling portion
280: second nipper coupling groove 290: nipper hook
300: control assembly 310: first gear
320: second gear 330: simultaneous rotation gear
340: drive motor 350: control housing
360: first support bar 370: second support bar

Claims (5)

Bucket tool 100 and nipper tool 200;
It is disposed between the bucket tool 100 and the nipper tool 200, is detachably assembled with the link assembly 20 of the excavator, and can selectively rotate the bucket tool 100 and the nipper tool 200, respectively. Including; a control assembly 300;
The bucket tool 100,
first sidewalls 110 and second sidewalls 120 spaced apart from each other in the left and right directions;
a connect wall 130 connecting rear edges and bottom edges of the first sidewall 110 and the second sidewall 120;
a bucket space 101 disposed between the first sidewall 110, the second sidewall 120, and the connect wall 130; a plurality of bucket protrusions 140 protruding forward from the lower end of the connect wall 130;
a first bucket coupling part 150 protruding from the second sidewall 120 to the right and detachably assembled with the control assembly 300;
a second bucket coupling part 170 that protrudes leftward from the first sidewall 110 and is detachably assembled with the control assembly 300;
a first bucket coupling groove (160) disposed on the first bucket coupling portion (150) and mutually interlocking with the control assembly (300) when rotated;
A bucket and nipper combination attachment including a second bucket coupling groove 180 disposed on the second bucket coupling portion 170 and forming mutually engaged with the control assembly 300 when rotated.
delete The method of claim 1,
The nipper tool 200,
Nipper body 210 to perform the work;
a nipper head 220 disposed on top of the nipper body 210 and coupled to the control assembly 300;
A first nipper coupling part 250 protruding from the right side of the nipper head 220 to the right and detachably assembled with the control assembly 300;
A second nipper coupling part 270 protruding from the left side of the nipper head 220 to the left and detachably assembled with the control assembly 300;
a first nipper coupling groove 260 disposed on the first nipper coupling portion 250 and interlocking with the control assembly 300;
A bucket and nipper combination attachment including a second nipper coupling groove 280 disposed on the second nipper coupling portion 270 and forming mutually engaging the control assembly 300.
delete delete

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