KR20160049861A - apparatus for forefinger of an excavator - Google Patents

Abstract

The purpose of the present invention is to provide a gripping device for heavy equipment, which can reduces a financial burden of a consumer because weight of an excavator and an arm can be minimized, a structure is simplified, and a failure rate is reduced by converting a mode of the gripping device into a manual mode using a mechanical structure. In order to achieve this purpose, the gripping device for heavy equipment, comprises: a mounting bracket fixed and installed on an arm of the heavy equipment, wherein an elongated hole is formed on one side with a slope; first and second brackets fixed and installed on the arm of the heavy equipment at a regular interval, wherein position of the first and second brackets are spaced from a position of the mounting bracket; a gripper coupled to the elongated hole of the mounting bracket to be able to rotate and move by the medium of a hinge pin; a support bar whose one end part is coupled to the gripper to be able to rotate, and another end part is selectively coupled to the first and second brackets by the medium of a fixing pin; and the fixing pin which fixes to an upper part or a lower part of the mounting bracket to be coupled thereto depending on whether the gripper is used. In regards to this, if the gripper is used, the fixing pin is coupled to the lower part of the mounting bracket in a state that the hinge pin is located on a top of the elongated hole, and the support bar is coupled to a lower part of the first bracket so as to fix the gripper. On the other hand, if the gripper is not used, the fixing pin is coupled to the upper part of the mounting bracket in a state that the hinge pin is located on a bottom of the elongated hole, and the support bar is coupled to an upper part of the second bracket so as to closely contact the gripper with the arm.

Description

An apparatus for forefinger of an excavator

[0001] The present invention relates to a heavy-duty clamping device, and more particularly, to a heavy-duty clamping device that can be foldably mounted on an arm according to whether a clamp is mounted on a heavy-duty arm such as an excavator .

Generally, an excavator (hereinafter, referred to as "excavator" as an example of a heavy equipment) is used in civil engineering, construction, construction work, excavation work for carrying the earth, And a stop work for arranging the ground, etc., as a construction machine, which is composed of a traveling body serving as a movement of the equipment and an upper revolving body and a working device mounted on the traveling body and rotating 360 degrees.

These excavators can be used with appropriate working equipment depending on the state of the earth and rock, the type of work and the application.

That is, buckets for general excavation and soil transportation, breakers for crushing hard ground, rocks, and crushers used for dismantling and crushing buildings are mainly used in excavators.

In recent years, it has been proposed to attach a separate clamping device to an excavator's arm so that a large rock or tree that can not be moved or moved by using a bucket can be picked up and moved or moved.

Korean Registered Patent No. 10-1208774 (entitled " Excavator ' s Tongs) " and Korean Registered Utility Model No. 20-0355983 (entitled " Hydraulic Tongs for Excavators ") disclose a grip device mounted on an arm of an excavator. .

In the clamping device disclosed in the above prior art documents, a gripper is rotatably mounted on an arm of an excavator, and the gripper thus installed is rotated by a hydraulic cylinder rotatably mounted on the arm.

Particularly, when the forceps is not used, the hydraulic cylinder can be pulled in the upward direction as much as possible and kept in contact with the arm of the excavator, as shown in Fig. 2 of Patent Document 10-1208774 of the prior art document .

However, these clamping devices are operated only by the hydraulic cylinders both in use of the clamps and in the storage thereof, which must be constructed by further adding hydraulic lines for operating the clamps separately from the hydraulic lines for operating the conventional buckets, And the weight of the arm is not only high, but also the structure becomes very complicated.

In addition, since the expensive hydraulic line needs to be separately constructed, more cost is incurred. Further, due to the construction of the hydraulic line, troubles are frequent, and a separate hydraulic expert is required for repairing. have.

The above-described excavator clamp device and the technique therefor are described in detail in the following prior art documents, and therefore, a detailed description thereof will be omitted.

Korean Patent Publication No. 10-1208774 Korean Registered Utility Model No. 20-0355983

SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and it is an object of the present invention to provide an excavator and an arm, The present invention has been made in view of the above problems, and it is an object of the present invention to provide a heavy-duty clamping device capable of minimizing the weight, simplifying the structure, and lowering the failure rate.

The above-described object is achieved by a mounting bracket and first and second brackets fixedly installed on a heavy equipment arm with a predetermined gap therebetween. A clamp rotatably coupled to the mounting bracket via a hinge pin; And a support bar rotatably coupled at its one end to the clamp and the other end selectively coupled to the first and second brackets via a fixing pin.

In addition, the above-described object is achieved by a mounting bracket fixedly mounted on an arm of a heavy equipment and having a slant formed at one side thereof; A clamp which is rotatably and movably coupled to the slot of the mounting bracket via a hinge pin; And a fixing pin for fixing the clamp to the upper portion or the lower portion of the mounting bracket according to whether the clamp is used or not. In use of the clamp, the fixing pin is positioned at the lower portion of the mounting bracket And the clamping pin is coupled to the upper portion of the mounting bracket in a state where the hinge pin is positioned at the lower end of the slot when not in use so that the clamp is tightly fixed to the arm.

In addition, the above-described object is achieved by a mounting bracket fixedly mounted on an arm of a heavy equipment and having a slant formed at one side thereof; First and second brackets fixedly installed on the mounting brackets and the spaced apart heavy equipment arms at regular intervals; A clamp which is rotatably and movably coupled to the slot of the mounting bracket via a hinge pin; One end of which is rotatably coupled to the clamp and the other end of which is selectively coupled to the first and second brackets via a fixing pin; And a fixing pin for fixing the clamp to the upper portion or the lower portion of the mounting bracket according to whether the clamp is used or not. In use of the clamp, the fixing pin is positioned at the lower portion of the mounting bracket And the support bar is coupled to the lower first bracket to fix the clamp. When the hinge pin is not in use, the fixing pin is coupled to the upper portion of the mounting bracket while the hinge pin is positioned at the lower end of the long hole, And can also be achieved by a heavy duty clamping device coupled to the bracket to securely clamp the clamps against the arm.

Preferably, the first and second brackets are spaced apart from each other such that the first and second brackets are in close contact with the arm when the forceps and the support bar are not in use.

In addition, the elongated hole formed in the mounting bracket is inclined so that the gripper can be brought into close contact with the arm when the gripper is not in use, and an elongated hole is formed in the upper end of the elongated hole of the mounting bracket, .

According to the present invention, since the clamping device provided on the arm of the excavator is manually lowered or fixed by using the hinge structure, a separate hydraulic line is not required, and accordingly, the weight of the excavator and the arm Can be minimized, the structure can be simplified, the failure rate can be reduced, and the economical burden on the consumer can be alleviated.

1 is an exploded perspective view showing a construction of a heavy duty clamp apparatus according to a first embodiment of the present invention.
FIG. 2 and FIG. 3 are views showing the use of the heavy duty grippers according to the first embodiment of the present invention when the grippers are not used.
FIG. 4 is a sectional view illustrating a configuration of a heavy duty clamp apparatus according to a second embodiment of the present invention.
FIGS. 5 and 6 are views showing the use of the heavy duty gripper according to the second embodiment of the present invention and the non-use thereof.
FIGS. 7 and 8 are views showing a grip for use at the time of use and a grip at the time of non-use, according to a third embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Terms used in this process are terms defined in consideration of the functions of the present invention, which may vary depending on the intention or custom of the user, the operator. Therefore, definitions of these terms should be made based on the contents throughout this specification.

In addition, the following embodiments are not intended to limit the scope of the present invention, but merely as exemplifications of the constituent elements set forth in the claims of the present invention, and are included in technical ideas throughout the specification of the present invention, Embodiments that include components replaceable as equivalents in the elements may be included within the scope of the present invention.

The terms "first", "second", "one side", "another side", etc. in the following embodiments are used to distinguish one element from another element, And the like. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In the following description of the present invention, detailed description of related arts which may unnecessarily obscure the gist of the present invention will be omitted.

1 to 8 are views showing a heavy duty gripper according to each embodiment of the present invention.

The heavy duty tackle device according to the present invention comprises a tackle 100 that is rotatably coupled to an arm 10 of a heavy equipment (hereinafter referred to as an "excavator") and is manually connected to the arm 10 side depending on whether the tackle 100 is used It can be folded or unfolded.

1 to 3, a bucket 20 operated by a hydraulic cylinder 30 is mounted on a lower end of an arm 10 of an excavator, Mounting brackets 300 and first and second brackets 310 and 320 are provided on the rear side of the arm 10 (the side facing the driver) while being fixedly spaced from each other.

The mounting bracket 300 and the first and second brackets 310 and 320 are provided with coupling holes 301 311 and 321 for coupling the hinge pin 111 and the fixing pin 330, And is formed in a direction perpendicular to the arm 10.

The mounting bracket 300 is rotatably coupled to the mounting bracket 300. The mounting bracket 300 includes a plurality of tongue bars 110 with one side curved as shown in FIG. One end of the tongue bar 110 is rotatably coupled to the coupling hole 301 of the mounting bracket 300 via a hinge pin 111 and the other end is coupled to the fork of the bucket 20 A fork 115 is formed.

A support bar 200 to be described later is rotatably coupled via a connection pin 112 to one side of the support bars 200 when the support assembly 100 is folded toward the arm 10. [ And protrusions 114 spaced apart from each other are protruded from one side of the tongue bar 110 facing the bucket 20. The protrusion 114 may be formed in various shapes, but it is preferable that the protrusion 114 is formed as a rectangular protrusion capable of maximizing the grip area when transporting rocks or trees.

Meanwhile, a separate support bar 200 is further provided between the tongue 100 and the arm 10 to support the tongue 100.

The support bar 200 is formed with connecting portions 210 and mounting portions 220 at both ends thereof and the connecting portion 210 of the support bar 200 is rotatably connected to one side of the central portion of the forceps 100 by a connecting pin 112 And the mounting portion 220 of the support bar 200 is selectively coupled to the coupling holes 311 and 321 of the first and second brackets 310 and 320 through the fixing pin 330 . That is, when the tongue 100 is used, the mounting portion 220 of the support bar 200 is coupled to the lower first bracket 310 to support the tongue 100. When the tongue 100 is not used, The first and second brackets 320 and 320 are fixed to the rear surface of the arm 10 in a state in which they are in close contact with each other.

In this case, when the tongue 100 is tightly fixed to the rear portion of the arm 10, the support bar 200 and the tongue 100 are folded so that the support bar 200 and the tongue 100 overlap each other, The volume of the tongue 100 and the support bar 200 can be minimized when the tongue 100 is not used.

The second bracket 320 is spaced apart from the first bracket 310 at an interval allowing the tongue 100 and the support bar 200 to be in close contact with the arm 10 when the tongue 100 is not in use . That is, when the support bar 200 is folded to the arm 10 side, the position of the mounting portion 220 of the support bar 200, which is in contact with the rear portion of the arm 10 and is parallel to the tongue 100, The position of the second bracket 320 spaced from the first bracket 310 can be determined. At this time, the support bar 200 is formed to have a length such that the mounting portion 220 coupled to the second bracket 320 protrudes above the clamp 100, avoiding interference with the clamp 100.

The fixing pins 330 for selectively coupling the mounting portion 220 of the support bar 200 to the first and second brackets 310 and 320 are engaged with the engaging holes of the first and second brackets 310 and 320 311) 321 or by fastening a C ring or an E ring to both ends of a fixing pin 330 protruding from both sides of the first and second brackets 310, May be fixed to the first and second brackets 310 and 320 to prevent any disconnection of the fixing pin 330.

When using the above clamping device, the fixing bracket 320, which is connected to the upper second bracket 320 and the mounting portion 220 of the support bar 200, is pulled out using a predetermined working tool or the like, 200 are detached from the second bracket 320.

The fixing part 330 of the support bar 200 is positioned on the first bracket 310 of the lower part while rotating the tongue 100 toward the bucket 20, 1 through the coupling hole 311 of the bracket 310 and the mounting portion 220 of the support bar 200.

Therefore, the support bar 200 coupled to the support bar 200 is supported by the excavator arm 10 and the clamp 100 in such a manner that both ends of the support bar 200 are rotatably coupled to the excavator arm 10 and the clamp 100, .

When the user does not use the forceps 100, the first bracket 310 and the fixing pin 330 coupled to the mounting portion 220 of the support bar 200 are pulled out and separated, To the arm 10 side.

3, when the support bar 200 is inserted between the grippers 110 of the gripper 100 and the mounting portion 220 of the support bar 200 is positioned on the upper second bracket 320, The fixing pin 330 is coupled to the coupling hole 321 of the second bracket 320 and the mounting portion 220 of the support bar 200. [

When the user does not use the tongue 100, the tongue 100 and the support bar 200 are folded and folded in close contact with the rear portion of the excavator arm 10, Can be avoided.

4 to 6 illustrate a heavy duty clamp apparatus according to a second embodiment of the present invention. Before describing the present embodiment, the same portions as those of the first embodiment described above are denoted by the same reference numerals And redundant description will be omitted.

4 to 6, a mounting bracket 400 is fixedly mounted on a rear portion (a surface facing a driver) of an excavator arm 10, In the bracket 400, a long hole 410 is formed along the longitudinal direction of the arm 10.

The elongated holes 410 are formed in the mounting bracket 400 so as to be inclined up and down along the longitudinal direction of the excavator arm 10. The inclined elongated holes 410 are formed in the mounting bracket 400, It is preferable that the tongue 100 is formed to have an inclination capable of being attached to the arm 10 when the tongue 100 is used.

The inclination of the elongated hole 410 is determined according to the degree of curvature of the tongue 100 contacting the rear portion of the excavator arm 10. When the degree of curvature of the tongue 100 is large, The inclination of the elongated hole 410 is formed to be large and the tongue 100 is pressed against the rear portion of the excavator arm 10 when the tongue 100 is not in use, .

The upper end of the elongated hole 410 includes a forward extension hole 411 extending upward toward the arm 10 and a rear extension hole 412 extending toward the opposite side of the forward extension hole 411.

The hinge pin 111 of the tongue 100 is inserted and engaged in the forward extension hole 411 when the tongue 100 is used and the tongue 100 is inserted into the rear extension hole 412 when the tongue 100 is not used. A fixing pin 430 penetrating through the fixing pin 430 is inserted to fix the clamp 100.

In the lower end portion of the mounting bracket 400 spaced apart from the slot 410, a coupling hole 420 is formed in which the fixing pin 430 passing through the tongue 100 is coupled when the tongue 100 is used. The pin 430 may be coupled through the connection hole of the gripper 100 to which the connection pin 112 is coupled in the above-described embodiment.

When the clamping device according to the second embodiment of the present invention is used, the fixing pin 430, which is coupled to the rear extension hole 412 of the mounting bracket 400 through the clamp 100, And then the tongue 100 is rotated toward the bucket 20 side.

The hinge pin 111 of the tongue 100 is moved from the lower end to the upper end of the elongated hole 410. When the connecting hole of the tongue 100 is aligned with the fitting hole 420 of the mounting bracket 400, The hinge pin 111 is inserted into the front extension hole 411 of the elongated hole 410 to be engaged.

5, when the fixing pin 430 is inserted into the coupling hole 420 of the clamp 100 and the clamp 100, the clamp 100 clamps the hinge pin 111 and the fixing pin 430 of the mounting bracket 400 and the coupling hole 420 of the mounting bracket 400 so that the work using the tongue 100 can be firmly performed.

When the tongue 100 is not used, the fixing pin 430 coupled to the coupling hole 420 of the tongue 100 and the mounting bracket 400 is pulled out to separate the tongue 100 from the arm 10).

The hinge pin 111 of the tongue 100 is separated from the forward extension hole 411 of the elongated hole 410 and moved from the upper end to the lower end of the elongated hole 410, The fixing pin 430 is again inserted into the through hole 412 in a state where the fixing pin 430 is aligned with the rear extension hole 412 of the mounting bracket 400.

Since the clamp 100 is fixed in the mounting bracket 400 by the fixing pin 430 so that the clamp 100 is firmly attached to the rear portion of the arm 10 of the excavator, The interference of the tongue 100 can be avoided.

7 and 8 illustrate a heavy duty gripper according to a third embodiment of the present invention. Before describing the present embodiment, the same parts as those of the first and second embodiments The same reference numerals are assigned, and redundant description is omitted.

The clamping device according to the third embodiment of the present invention uses the clamping device of the first embodiment described above and the clamping device of the second embodiment as shown in Figs. 7 and 8.

A mounting bracket 400 fixed to the rear portion of the excavator arm 10 and having a long hole 410 formed at one side of the arm 10 so as to be inclined in the longitudinal direction of the arm 10; The first and second brackets 310 and 320 are fixed to the arm 10 of the excavator and maintain a predetermined interval therebetween. The first and second brackets 310 and 320 are fixed to the long hole 410 of the mounting bracket 400 through a hinge pin 111 And one end rotatably coupled to the clamp 100 and the other end rotatably coupled to the first and second brackets 310 and 320 through a fixing pin 330 And a fixing pin 430 for fixing the tongue 100 to the upper or lower portion of the mounting bracket 400 depending on whether the tongue 100 is used or not.

Since the detailed structure according to the present embodiment is the same as that of the first and second embodiments, a detailed description thereof will be omitted.

7, the hinge pin 111 of the gripper 100 is fixed to the front extended hole 411 of the elongated hole 410. In this state, The pin 430 is coupled to the engaging hole 420 of the lower portion of the mounting bracket 400 and the mounting portion 220 of the support bar 200 is coupled to the lower first bracket 310 with the fixing pin 330 8, the hinge pin 111 of the tongue 100 is engaged with the lower end of the elongated hole 410 when the tongue 100 is not used, The fixing pin 430 is coupled to the rear extension hole 412 of the upper portion of the elongated hole 410 of the mounting bracket 400 and the mounting portion 220 of the support bar 200 is fastened to the upper second bracket 400. [ The tongue 100 is fixed to the rear portion of the excavator arm 10 by being fixed to the tongue 320 by the fixing pin 330.

In this embodiment, the clamp 100 is fixed to the mounting bracket 400 and the support bar 200 at all times regardless of whether the clamp 100 is used or not, And can be used or stored in a fixed state.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the same is by way of illustration and example only and is not to be construed as limiting the present invention. It is obvious that the modification or improvement is possible.

It is intended that the present invention cover the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents.

10: arm 20: bucket
30: Hydraulic cylinder 100: Tongs
110: forceps 111: hinge pin
112: connecting pin 114: projection
115: fork 200: support bar
210: connection part 220: mounting part
300: mounting bracket 310, 320: first and second brackets
301, 311, 321: engaging hole 330:
400: mounting bracket 410: long hole
411, 412: front and rear extension holes 420:
430: Fixing pin

Claims (6)

A mounting bracket and first and second brackets fixedly installed on the arm of the heavy equipment with a predetermined interval therebetween;
A clamp rotatably coupled to the mounting bracket via a hinge pin; And
And a support bar rotatably coupled at its one end to the clamp and the other end selectively coupled to the first and second brackets via a fixing pin.
A mounting bracket fixedly mounted on the arm of the heavy equipment and having a sloped slit at one side thereof;
A clamp which is rotatably and movably coupled to the slot of the mounting bracket via a hinge pin; And
And a fixing pin for fixing the forceps to an upper portion or a lower portion of the mounting bracket depending on whether the forceps is used or not,
When the clamp is used, the fixing pin is coupled to the lower portion of the mounting bracket in a state where the hinge pin is positioned at the upper end of the slot. When the clamp is not used, the fixing pin is mounted And a clamping device coupled to the upper portion of the bracket for tightly fixing the clamp to the arm.
A mounting bracket fixedly mounted on the arm of the heavy equipment and having a sloped slit at one side thereof;
First and second brackets fixedly installed on the mounting brackets and the spaced apart heavy equipment arms at regular intervals;
A clamp which is rotatably and movably coupled to the slot of the mounting bracket via a hinge pin;
One end of which is rotatably coupled to the clamp and the other end of which is selectively coupled to the first and second brackets via a fixing pin; And
And a fixing pin for fixing the forceps to an upper portion or a lower portion of the mounting bracket depending on whether the forceps is used or not,
When the clamp is used, the fixing pin is coupled to the lower portion of the mounting bracket while the hinge pin is positioned at the upper end of the slot, and the support bar is coupled to the lower first bracket to fix the clamp. The fixing pin is coupled to the upper portion of the mounting bracket and the support bar is coupled to the upper second bracket so that the clamp is tightly fixed to the arm.
The method according to claim 1 or 3,
The first and second brackets are spaced apart from each other such that the first and second brackets are in close contact with the arm when the second and third brackets are not in use.
The method according to claim 2 or 3,
The elongated slot formed in the mounting bracket is formed with an inclination that allows the clip to contact the arm when the clip is not used.
The method of claim 5,
Wherein an elongated hole is formed at the upper end of the elongated hole of the mounting bracket so as to extend upward to the arm side and into which the hinge pin of the forceps is inserted.

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