KR101809406B1 - Multifunctional forceps device for excavators - Google Patents

Abstract

The present invention relates to a multifunctional clamping device for an excavator and, more specifically, to a multifunctional clamping device for an excavator, which is easy to manufacture, is economical, and minimizes the possibility of maintenance and failure by a sufficient clamping function without using a hydraulic structure. The multifunctional clamping device for an excavator can stably couple a clamping frame to a boom and hold the coupling state by using an elastic structure provided in the process of coupling and separating the clamping frame with the boom. Moreover, the multifunctional clamping device for an excavator can be mounted on an excavator boom of various models (sizes) without any structural change. Even if the lower end part of the clamping frame collides with the ground due to carelessness in the process of the operation of the clamping function and the whole clamping device are pushed upward, the multifunctional clamping device for an excavator can prevent undesired separation between the clamping frame and the boom and prevent safety accidents caused thereby. The multifunctional clamping device for an excavator according to the present invention comprises a clamping link housing and a clamping frame.

Description

Technical Field [0001] The present invention relates to a multifunctional forceps device for excavators,

The present invention relates to a clamping device which is operatively coupled to a bucket in a detachably connected state at an end of a boom of an excavator,

Especially, even if the hydraulic structure is not used, sufficient tongue function can be exhibited, so that it is easy and economical to manufacture, and the possibility of maintenance and trouble is minimized,

It can be easily accomplished by using the elastic structure provided in the process of joining and separating with the excavator boom,

It is possible to combine excavator boom and link pin of various models (size) without any structural change,

It is possible to prevent the disengagement of the clamping pin of the clamping device even if the lower end of the clamping device collides against the ground due to the insult or the like during the operation of the clamping device so that the entire clamping device is pushed upward, The present invention relates to a technique capable of preventing a malfunction.

In general, excavators are essential equipment for various construction and civil engineering works.

These excavators can be equipped with various tools and can perform various kinds of work according to the tools.

For example, a bucket, which is one of the most widely used tools, can be installed at the end of the boom, and the hoisting operation of the ground or the material moving operation can be performed by using the rotation operation of the boom.

In addition to this, a separate clamping frame can be installed to function as a buckle as well as a tongue.

At this time, the grip frame to be installed is divided into a hydraulic type and a non-hydraulic type.

Among them, the hydraulic system has a clamping type operation structure in which the clamping frame and the bucket rotate in opposite directions while facing each other,

More specifically, the upper end of the separate clamping frame is linked to the rear side of the boom extremity to be positioned opposite to the bucket, and the cylinder rod of another auxiliary hydraulic cylinder is connected to the clamping frame.

In this state, the bucket is pivoted back and forth by the main hydraulic cylinder, while at the same time the pliers frame is pivoted together with the bucket as it is pivoted counterclockwise by the auxiliary hydraulic cylinder.

However, such a hydraulic type clamp device basically requires a separate auxiliary hydraulic cylinder and a hydraulic structure for rotating the clamp frame so that the structure is complicated as a whole and the manufacturing cost is also high.

In addition, when the hydraulic structure is applied, the coupling and separation process with the boom frame is complicated, so that the gripper frame always remains attached to the boom frame even when the gripper frame is not used.

Therefore, in this case, there is a problem that the space occupied by the tongue frame increases the possibility of collision between the surrounding object and the tongue frame during the operation.

In addition to such a hydraulic system, the non-hydraulic type clamp device has a structure in which only the bucket rotates while the clamp frame is fixed to the boom frame without a separate driving means to exert the same function as the clamp.

Such a non-hydraulic method has advantages in that it is economical, easy to use and detachable because of its simple structure compared to a hydraulic method.

However, since the conventional non-hydraulic type clamping device requires a separate worker for joining and separating the boom bar, or additional tools such as bolts or fastening frames, it is advantageous in that it can be attached and detached more than the hydraulic type, So that it is difficult to easily perform the coupling and separation process.

The present invention has been proposed in order to solve such shortcomings of the prior art,

It is desired to provide a multifunctional clamp device for an excavator which is capable of exhibiting a sufficient clamping function without using a hydraulic structure and which can be manufactured easily and economically and minimizes the possibility of maintenance and failure.

Also, the present invention provides a multifunctional clamping device for an excavator which can stably maintain the coupling state and the coupling state between the clamp frame and the boom frame by using the elastic structure provided in the process of coupling and separating the clamp frame with the boom frame.

The present invention also provides a multifunctional clamping device for an excavator which can be mounted on an excavator boom of various models (sizes) without any structural change.

In addition, when the lower end of the clamp frame collides against the ground due to an insult in the course of performing the clamp function, the entire clamp device is pushed upward to prevent unwanted separation phenomena between the clamp frame and the boom frame. And to provide a multifunctional clamp device for an excavator.

To this end,

A first link shaft protruding from left and right sides of a lower end portion of an excavator boom frame and rotatably connected to one end of the main link housing and a second link shaft protruding from left and right upper sides of the first link shaft, And a second link shaft connected to the other side of the housing,

A tongue link housing directly connected to the boom frame via the first link shaft and the second link shaft and operated through contact with the main link housing, a tongue link housing detachably coupled to the tongue link housing, The first linking piece extending from the housing portion and positioned on both left and right sides of the boom frame and inserted and connected to the first link shaft, A second connecting piece extending from the housing portion and positioned on both left and right sides of the boom frame and inserted and connected to the second link shaft; a main connecting member, which is vertically movable with the main link housing connected to the housing portion, In the process of rotating toward the rear side, the front end of the main link housing is brought into contact with the front end of the main link housing, The lifting and lowering portion of the lifting and lowering frame is provided with a lifting and lowering portion for providing a space in which the first coupling shaft of the pulling frame can be inserted or removed, A descending guide portion formed at an upper end of the housing portion and a second engaging shaft located above the first engaging shaft is inserted and coupled from the upper side to the lower side, And includes an axial mount piece.

In addition, a through hole is formed in each of the first connection pieces, and the first link shaft is inserted and coupled. In each of the second connection pieces, a groove-shaped latching groove is formed from the upper side to the lower side, And the engaging groove may be engaged with the second link shaft so as to surround a part of the circumferential surface of the second link shaft.

The housing part is formed with a receiving space on the rear side and a first guide member for guiding the coupling between the lifting and lowering part and the lifting and lowering coupling part and the up and down linear movement guide is formed on the inner side surface of the accommodation space along the vertical direction And the elevating and lowering coupling portion is coupled to the first guide member on both left and right sides to form a coupling member between the elevating and lowering coupling portion and the housing portion and a second guide member for guiding the up and down linear movement of the elevating coupling portion along the longitudinal direction have.

The elevating and lowering coupling portion is formed in a plate shape and is formed in the receiving space and is integrally connected to the rear side of the guide plate to be vertically movable up and down together with a connecting jaw connected to the lower end portion of the downward guiding portion on the upper side thereof And a fastening block which can be inserted so that the first fastening shaft of the fastening frame can be detached, wherein a lower end of the fastening block is formed with a first fastening groove recessed in a downward direction, Right and left ends of the guide plate are protruded from left and right end portions of the fastening block, the right and left ends of the guide plate become the second guide members, and the first guide member of the housing portion Wherein the left and right end portions of the guide plate are inserted into the first guide member And it can be moved linearly.

The lower end of the guide plate protrudes toward the lower side of the housing part. When the bucket is separated from the main link housing, the main link housing pivots to the rear side while the lower end of the guide plate is pushed up, The entire engagement portion can be raised.

The shaft fastening piece is extended upward from the upper end of the housing part. At the upper end of the housing fastening part, the second fastening groove is recessed downward, so that the second fastening shaft of the fastening frame is inserted into the second fastening groove And the descending induction portion is in the form of a coil spring and is located between the upper side of the fastening block and the lower end of the shaft fastening piece in the housing space of the housing portion and can be compressed when the fastening block is lifted.

Further, the rear end of the shaft holder is formed to be longer than the front end so as to form the departure prevention piece. In the course of lifting up the gripper frame unintentionally in the state of being coupled to the gripper link housing, It is possible to prevent the coupling shaft from being separated from the second clamping groove.

According to the present invention,

Basically, use the grip frame in non-hydraulic manner,

Since the main link housing is operated in the process of rotating toward the rear side to attach and detach the main frame to and from the main frame, the process of mounting and dismounting the main frame can be performed easily and quickly.

Since the coupling and separation with the first coupling shaft of the clamping frame is achieved through the main link housing and the elastic structure, it is easy to manufacture and the manufacturing cost can be reduced, and stable coupling and separation with the first coupling shaft is possible.

Further, since the second link shaft of the tilt link housing is formed with the second link shaft and the second link shaft of the tilt link housing is coupled with the engagement groove in the simple engagement structure not in the penetrating structure, the first link shaft and the second link shaft The present invention can be applied to each existing excavator without changing the structure of the forklift housing even if the intervals are different.

Since the rear end portion of the shaft fixing member is formed as a release preventing portion which is further extended upwardly, even if the lower end portion of the clamping frame collides with the ground due to the protrusion or the like and the entire clamping frame is pushed upward, A phenomenon that the shaft restricting piece is completely separated from the second clamping groove is prevented, so that a safety accident or the like can be prevented.

1 is a side schematic view of a boat mounted on a boom
2 is an enlarged view of Fig. 1
Figure 3 is a perspective view of the clamp link housing
Fig. 4 is a bottom perspective view of Fig.
Figure 5 is an exploded perspective view of the clamp link housing
Figure 6 is a side schematic view with the bucket and the gripper frame both separate;
7 is a side schematic view of the state in which the main link housing is pivoted rearward in the state of separation between the pivotal link housing and the pivotal frame so that the lifting engagement portion of the pivotal link housing is raised;
8 is a side schematic view of the state in which the first engagement shaft of the gripper frame is inserted into the first gripper engagement groove of the lifting engagement portion and the second engagement shaft is engaged with the second gripper engagement groove of the shaft receiving portion in the state of FIG.
9 is a side view schematically showing a state in which the lifting engagement portion is lowered by the elastic force of the descending induction portion and is engaged with the first engagement shaft;
10 is a side schematic view showing that the second engaging shaft of the gripper frame is not separated from the second gripper engaging groove of the gripper link housing when the gripper frame bottom collides against the ground and the entire gripper frame is raised unintentionally

Hereinafter, the present invention will be described in more detail with reference to the drawings.

The multifunctional clamping device for an excavator according to the present invention comprises a clamping frame (6) and a clamping frame (25) as shown in Figs. 1 to 3.

First, the tongue link housing 6 serves as a connection medium between the tongue frame 25 and the excavator boom frame 1, which will be described later.

A first link shaft (not shown) which is protrudingly formed on the left and right sides of the lower end of the excavator boom frame 1 and which is rotatably connected to one end of the main link housing 4 for mounting the bucket 5, A second link shaft 3 formed on the upper left and right sides of the first link shaft 2 of the boom frame 1 and connected to the other side of the main link housing 4 via another joint link 28, To be connected.

More specifically, the forceps link housing 6 includes the housing part 7, the first connecting piece 10, the second connecting piece 12, the lifting and engaging part 15, the lower guiding part, ).

The housing part 7 serves as an existing skeleton for forming other components in the clamp link housing 6 and serves as a space for providing a space for up-and-down linear movement of the lift coupling part 15 described later.

This housing part 7 is in the form of a block and is located at a position between the first link shaft 2 and the second link shaft 3 of the rear side of the excavator boom frame 1 and the front side is in close contact with the rear side of the boom frame .

At this time, on the rear side of the housing part 7, a receiving space 8 for the installation and movement of the lifting and lowering engaging part 15 and the descending guiding part 24 described later is formed. On the left and right inner side surfaces of the receiving space 8, A first guide member 14 is formed along the vertical direction in the form of a rail groove for engagement with the elevation coupling portion 15 and for upward and downward linear movement guides of the elevation coupling portion 15. [

For reference, the first guide member 14 may be formed in a manner such that the coupling between the lifting and lowering engagement portion and the housing portion, such as a rail groove or a protruding rail structure, and the smoothness of the lifting engagement portion, It can be variously modified and applied so long as it can induce up-and-down linear movement.

The first connecting piece 10 and the second connecting piece 12 are elements for joining and separating the whole clamping link housing 6 including the housing part 7 and the boom frame 1. [

The first connecting piece 10 functions as a coupling between the housing part 7 and the first link shaft 2 of the boom frame 1. The first connecting piece 10 extends forward from both left and right lower ends of the housing part 7, (1) are opposed to both left and right sides.

At this time, a through hole 11 is formed in each first connection piece 10 so that the first link shaft 2 is inserted into each of the through holes 11.

The second connecting piece 12 serves as a coupling function between the housing part 7 and the second link shaft 3 of the boom frame 1. The second connecting piece 12 extends forward from the upper side of the housing part 7, And is inserted into and connected to the second link shaft 3.

At this time, unlike the first connecting piece, the second connecting piece 12 is not formed with a through hole, but a groove-like engaging groove 13 is formed from the upper side to the lower side so that the second link shaft 3 is inserted And the engaging groove 13 is engaged in the form of surrounding a part of the peripheral surface of the second link shaft.

The reason for forming the latching groove 13 in the second connecting piece 12 is that the distance between the first link shaft 2 and the second link shaft 3 is slightly different depending on the model of the excavator, When the through holes are formed in both the connecting piece 12 and the first connecting piece 10, the distance between the first connecting piece 10 and the second connecting piece 12 must be different according to the type of the excavator.

However, since the second connecting piece 12 is formed with the latching groove 13 instead of the through hole as in the present invention and all or part of the second link shaft 3 is inserted into the latching groove 13, This is because it can be applied to all types of excavators.

In this state, the lifting and engaging portion 15 is connected to the housing portion 7.

The lifting and engaging portion 15 is an element for engaging and separating the clamping link housing 6 and the first engaging shaft 26 of the clamping frame 25 to be described later.

The guide plate 16 is directly contacted with the main link housing 4 so that the lifting and engaging part 15 is connected to the lifting and lowering part 15, . ≪ / RTI >

Such a guide plate 16 is installed in a state of being inserted into the first guide member 14 of the housing part 7 at both left and right ends in a state of being in the form of a plate and being located in the housing space 8 of the housing part 7. [ do.

Thus, the guide plate 16 is fastened to the housing portion 7, and at the same time, is vertically movable along the forming path of the first guide member 14. [ That is, the left and right ends of the guide plate 16 serve as the second guide members 17. [

The lower end of the guide plate 16 is further extended downward and protruded downward from the lower end of the housing part 7. This is because the guide plate 16 and the guide plate 16, So that the lower end of the guide plate 16 can be pushed up while the housing 4 is pivoted rearward.

In this state, the fastening block 18 is connected to the guide plate 16.

The fastening block 18 is an element that functions to fasten the fastening frame 25 to the first fastening shaft 26 and a lowering guide portion 24 to be described later.

The coupling block 18 is integrally connected to the rear side of the guide plate 16 so as to be able to move up and down together with a coupling jaw 29 connected to the lower end of the lowering induction portion 24 on the upper side, So that the first engagement shaft 26 of the clamp frame 25 to be described later is inserted and fastened into the first clamp engagement groove 19. The first clamp engagement groove 19 is formed in the first clamp engagement groove 19,

In this state, the shaft portion 20 is formed in the housing portion 7.

The shaft stopper 20 is an element for coupling and separating between the clamping link housing 6 and the second coupling shaft 27 of the clamping frame 25 to be described later.

The shaft fixing piece 20 is formed to extend upward from the upper end of the housing part 7, and at the upper end thereof, a groove-shaped second clamping groove 21 is formed to be depressed downward, The shaft 27 is inserted and seated in the second clamping groove 21.

At this time, the rear end portion of the shaft holder is elongated toward the upper side in comparison with the front end portion so that the extending portion becomes the release preventing piece 22,

7, when the lower end of the clamping frame 25 hits the ground and is raised upward unintentionally in the process of clamping while the clamping frame 25 is coupled to the clamping link housing 6, (27) is detached from the second clamping engagement groove (21).

On the lower end surface of the shaft mount piece 20, the fixing protrusion 23 of the fastening block 18

The second engaging shaft 27 and the first engaging shaft 26 located on the upper and lower sides of the clamp frame 25 to be described later are engaged with the first clamp clamping groove 19 of the clamp link housing 6 and the second clamp pin The engagement between the clamp frame and the clamp link housing 6 is constituted.

In this state, a fixing protrusion 23 for fixing the position of the lowering guide portion 24, which will be described later, is formed to protrude from the lower end surface of the shaft mounting piece 20 and the upper surface of the fastening block 18.

In this state, the downward guide portion 24 is provided on the housing portion 7. [

The descending guide portion 24 is formed so that the lifting and engaging portion 15 is pushed up by the main link housing 4 so that the first engaging shaft 26 of the clamping frame 25 is positioned below the first clamping groove 19 The elevating and lowering engaging portion 15 is forcibly lowered so that the first engaging shaft 26 is engaged with the first engaging concave groove 19 and at the same time, Lt; / RTI >

The lowering inducing portion 24 is in the form of a coil spring and is positioned in a space between the coupling block 18 and the shaft receiving piece 20 in the receiving space 8 of the housing portion 7, The fixing protrusion 23 is inserted and the fixing protrusion 23 of the shaft mounting piece 20 is inserted into the lower end portion.

With this structure, when the main link housing 4 pushes up the guide plate 16, the entire lifting engagement portion 15 is lifted and the lowering guiding portion 24 is compressed and at the same time the elastic force is exerted downward, The lifting force applied through the housing 4 is released and the entire lifting engagement portion 15 is lowered by the elastic force of the lifting inducing portion 24 so that the first engaging shaft 26 of the pulling frame 25 is lifted by the first So that it is completely inserted into the clamping groove 19.

The process of separating the first coupling shaft 26 from the first clamping groove 19 proceeds in the same manner.

Since the upper and lower ends of the lowering guide portion 24 are connected to the fixing protrusion 23 as described above, the lowering guide portion 24 is disengaged or twisted in the receiving space 8 in the course of compression and compression, .

The lowering guide portion 24 is not limited to the coil spring but may be formed in various forms as long as the upper portion of the lifting and lowering portion 15 can be pushed downward by exerting a force in the opposite direction As shown in FIG.

The clamping frame 25 is mounted on the clamping link housing 6 described above.

The gripper frame 25 is an element that exhibits a substantial gripping function together with the bucket 5 of the excavator. The gripper frame 25 is formed in a bar shape having an overall length in the vertical direction and a second engagement shaft 27 formed at the upper end thereof. The first engagement shaft 26 and the second engagement shaft 27 are respectively engaged with the first and second clamp engagement grooves 19 and 21 of the clamp link housing 6, Respectively.

The shape of the gripper frame is not limited to that shown in the drawings, and may be modified in various ways provided that the gripper frame has the first engagement shaft 26 and the second engagement shaft 27.

According to the structure described above,

2 and 3, when the main link housing 4 is fully pivoted rearward in a state in which the main link housing 4 is detached and the bucket 5 is mounted on the excavator boom base 1, The end of the main link housing pushes up the lower end of the guide plate 16 of the clamp link housing 6.

As a result, the entire lifting engagement portion 15 is lifted in the linear direction, and at the same time, the lifting inducing portion 24 is compressed, and the elastic force is exerted in the opposite direction.

In this state, the boom frame is moved so that the first engaging shaft 26 of the clamp frame 25 standing on the ground is positioned below the first clamp engaging groove 19 of the lifting and engaging part 15 and the clamp frame 25 The second engaging shaft 27 of the second engaging portion 15 is positioned in the second engaging groove 21 of the lifting engagement portion 15. [

The entire lifting engagement portion 15 is lowered by the elastic force of the descending induction portion 24 and the clamping frame 25 is lifted by the elastic force of the lifting guide portion 24 as soon as the main link housing 4 is pivoted forward and the force pushing up the guide plate 16 is released. The first coupling shaft 26 of the clamping frame 25 is fully inserted into the second clamping groove 21 so that fastening between the clamping frame 25 and the clamping link housing 6 is easily completed.

In this state, the bucket 5 is mounted on the main link housing 4, and then the bucket 5 is moved forward and backward The bucket 5 and the clamping frame 25 exert a pair of clamping functions.

In this process, when the boom frame descends due to an operator's mistake or the like, and the lower end of the clamp frame 25 collides undesirably on the ground or the like, the clamp frame 25 ascends upward,

In this process, the lifting and engaging portion 15 is pushed up by the first engaging shaft 26 together with the whole of the clamp frame 25 and raised together.

At this time, the second engaging shaft 27 of the gripper frame 25 rises and rises in the second gripper engaging groove 21 of the shaft mount piece 20, It is possible to prevent the second engaging shaft 27 from being caught by the escape preventing piece 22 and eventually being disengaged from the second engaging concave groove 21 because the piece 22 extends upward.

In this state, the clamping frame 25 and the lifting / coupling portion 15 are lowered downward by the elastic force of the lowering guide portion 24 and returned to the home position.

That is, according to the present invention, when the clamping frame collides with the ground or the like, the clamping frame can be lifted up without completely blocking it, thereby reducing the impact load applied to the clamping frame and the clamping link housing 6 .

So that the impact load can be relieved and the separation phenomenon between the clamp frame 25 and the clamp link housing can be prevented.

Also, when the bucket is mounted, the bucket is rotated to the rear side. However, since the lower end of the bucket is brought into contact with the lower end of the clamp frame and the main link housing can not be further rotated backward, There is no possibility that the guide plate of the lifting engagement portion 15 comes into contact with the main link housing and is raised.

1: Boom bar 2: First link shaft
3: second link shaft 4: main link housing
5: bucket 6: clamp link housing
7: housing part 8: accommodation space
10: first connecting piece 11: through hole
12: second connecting piece 13:
14: first guide member 15:
16: guide plate 17: second guide member
18: fastening block 19: first clamping groove
20: Axial mounting member 21: Second clamping member
22: Departure-preventing piece 23: Fixing projection
24: descending guide portion 25: clamping frame
26: first coupling shaft 27: second coupling shaft
28: joint link 29: connection jaw

Claims (7)

A first link shaft protruding from left and right sides of a lower end of an excavator boom frame and rotatably connected to one end of the main link housing and a second link shaft protruding from upper left and right sides of the first link shaft, And a second link shaft connected to the other side of the housing,
A main link housing connected to the boom frame via the first link shaft and a second link shaft and being operated through contact with the main link housing while the main link housing rotates about the first link shaft,
And a clamping frame detachably coupled to the clamping link housing and performing a clamping function,
The forceps link housing includes:
A housing part located on a rear side of the boom frame,
A first connecting piece extending from the housing portion and positioned on both left and right sides of the boom frame and inserted and connected to the first link shaft,
A second connecting piece extending from the housing portion and positioned on both left and right sides of the boom frame and inserted and connected to the second link shaft,
The main link housing is vertically movable in a state where the main link housing is connected to the housing portion and is brought into contact with a front end portion of the main link housing while being pushed upward in a process of rotating the main link housing about the first link shaft toward the rear side, 1 elevation coupling portion for providing a space into which a coupling shaft can be inserted or separated,
A downward guide part having one end connected to the lifting and lowering part and the other end connected to the housing part and being compressed during the lifting and lowering of the lifting and lowering part,
And a second engaging shaft formed on an upper end of the housing part and located above the first engaging shaft of the gripper frame is inserted and coupled from the upper side toward the lower side.
Multifunctional clamping device for excavators.
The method according to claim 1,
Wherein each of the first connection pieces has a through hole formed therein and the first link shaft is coupled therewith,
And each of the second connecting pieces is formed with an engagement groove in the form of a groove from the upper side to the lower side so that the second link shaft is inserted and the engaging groove is engaged in the form of surrounding a part of the peripheral surface of the second link shaft
Multifunctional clamping device for excavators.
The method according to claim 1,
A first guide member for guiding the coupling between the lifting and lowering portion and the housing portion and the upper and lower linear movement guides of the lifting and lowering portion is formed on the inner side surface of the housing space along the longitudinal direction In addition,
The elevating and lowering coupling portion is formed on both left and right sides of the first guide member so that a second guide member for coupling between the elevating and lowering portion and the housing portion and the up and down linear movement guide of the elevation coupling portion is formed along the vertical direction. doing
Multifunctional clamping device for excavators.
The method of claim 3,
The lifting /
A guide plate which is in the form of a sheet material and is located in the accommodating space and can be vertically elevated,
A connecting jaw is integrally connected to the rear side of the guide plate so as to be able to move up and down together and a lower end of the lowering guide portion is connected to the upper side thereof and a first clamping groove is formed in a lower end portion thereof, And a fastening block into which the first engagement shaft of the pliers frame can be inserted releasably,
The left and right ends of the guide plate are formed to be larger than the left and right widths of the fastening block and the left and right ends of the guide plate are protruded from the left and right ends of the fastening block,
The first guide member of the housing part is in the form of a rail groove having a vertical length,
And left and right end portions of the guide plate are vertically movable in a state of being inserted into the first guide member
Multifunctional clamping device for excavators.
5. The method of claim 4,
The lower end portion of the guide plate protrudes toward the lower side of the housing portion and the main link housing rotates to the rear side while the bucket coupled to the main link housing is separated from the main link housing, And the entire lifting and lowering engagement portion is lifted as the lifting member is lifted up.
Multifunctional clamping device for excavators.
The method according to claim 4 or 5,
The shaft fastening piece is extended upward from the upper end of the housing part, and at the upper end, a second fastening fastening groove is formed to be depressed downward so that the second fastening shaft of the fastening frame is inserted and seated in the second fastening fastening groove However,
Wherein the downward guiding portion is in the form of a coil spring and is positioned between the upper side of the fastening block and the lower end of the shaft fastening piece in the housing space of the housing portion and is compressed when the fastening block is lifted.
Multifunctional clamping device for excavators.
The method according to claim 6,
The rear end of the shaft fastener piece is formed to be longer than the front end of the shaft fastener, so that when the pulling frame is coupled to the clamp link housing, So that the shaft can be prevented from being detached from the second clamping groove
Multifunctional clamping device for excavators.

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