KR102084590B1 - A loader connection device for tractor - Google Patents

Abstract

The present invention combines and separates the upper and lower coupling rotation shafts provided on the fixing bracket of the loader in the upper and lower coupling separation grooves provided on the adapter frames provided on both sides of the tractor, and the fixed brackets are connected to the lower coupling rotation shafts. By rotating the rotating part and the fixing and releasing parts installed to rotate together, the lower coupling rotating shaft installed in the fixing bracket is easily rotated to both sides of the rotating portion, and the lower coupling rotating shaft is provided in the lower coupling separation groove provided in the adapter frame. The loader attachment / detachment device that makes it easier and faster to assemble and disconnect the loader with the fixed bracket from the adapter frame provided in the tractor is easier:
A loader detachable connection device comprising: an adapter frame fixedly installed on both sides of the tractor and having upper and lower coupling release grooves on one side, and a fixing bracket coupled to and separated from the adapter frame; An upper coupling rotation shaft provided horizontally on the upper portion of the fixing bracket and coupled to the upper coupling release groove; A lower coupling rotation shaft provided horizontally at the lower portion of the fixing bracket and coupled to the lower coupling release groove; A rotating portion located on one side outside of the fixing bracket, having a curved groove, and having one side of the lower coupling rotation shaft throughly installed; It is characterized in that it comprises a fixing and releasing portion provided to be fixedly and released by being rotated and inserted horizontally on one side and the other side of the fixing bracket and rotating the fixing portion on the fixing bracket.

Description

A loader connection device for tractor}

The present invention relates to a loader detachable connection device, and more particularly, to a loader detachable connection device for easily coupling and detaching a loader in a tractor.

The technology of the tractor's loader linkage is:

Republic of Korea Patent Publication No. 10-2015-0124324 (published on November 05, 2015) "loader connection device and a front loader for a tractor including the same" are presented,

As a connecting device for connecting a loader that is detachably mounted on the front of the tractor,

It is elastically installed on a tandem shaft (elastic support shaft) spaced apart from a fixed shaft that is horizontally arranged to be moved (elastically rotated) to a position where the binding with the fixed shaft is released from a position where it is engaged with the fixed shaft, and a tange shaft (elastic support shaft) A hook portion formed with a locking jaw on one main surface of the periphery, and a stopper portion disposed at an adjacent side of the hook portion and elastically (elastically rotating) installed on a tandem shaft (elastic support shaft) to control the elasticity (elastic rotation) of the hook portion By configuring, it is a hook-type one-touch fastening connection device, and it can be easily and quickly detached from the front loader without exerting a lot of force compared to a conventional fastening pin or bolt fastening method. Therefore, when attaching and detaching the front loader, It is related to a loader connecting device for reducing the hassle and securing the ease and reducing the time.

Republic of Korea Patent Publication No. 10-2015-0124324 (published November 05, 2016)

The present invention combines and separates the upper and lower coupling rotation shafts provided on the fixing bracket of the loader in the upper and lower coupling separation grooves provided on the adapter frames provided on both sides of the tractor, and the fixed brackets are connected to the lower coupling rotation shafts. By rotating the rotating part and the fixing part and the releasing part to be operated in cooperation with each other, the lower coupling rotation shaft installed in the fixing bracket is easily rotated to both sides of the rotation part, and the lower coupling rotation shaft is provided in the lower coupling separation groove provided in the adapter frame. An object of the present invention is to provide a loader detachable connection device that makes it easier and faster to assemble and detach a loader having a fixed bracket from an adapter frame provided in a tractor more easily and quickly.

In addition, the present invention is connected to the rotating part by inserting and releasing the fixing and releasing portions that are brought in and out of the coupling holes of the fixing bracket in the curved groove formed in the rotating portion connected to the lower coupling rotating shaft installed in the fixing bracket. An object of the present invention is to provide a loader detachable connection device that allows the lower coupling rotation shaft to be stably engaged and separated from a lower coupling separation groove provided in the adapter frame.

In order to achieve the above object, the present invention is a loader detachable connection device, fixedly installed on both sides of the tractor, the upper and lower adapter frame is formed on one side of the upper and lower coupling separation groove, and the adapter frame is coupled and separated And a loader having a fixed bracket; An upper coupling rotation shaft provided horizontally on the upper portion of the fixing bracket and coupled to the upper coupling release groove; A lower coupling rotation shaft provided horizontally at the lower portion of the fixing bracket and coupled to the lower coupling release groove; A rotating portion located on one side outside of the fixing bracket, having a curved groove, and having one side of the lower coupling rotation shaft installed through the coupling; It is characterized in that it comprises a fixing and releasing portion provided to be fixedly and released by being rotated and inserted horizontally on one side and the other side of the fixing bracket and rotating the fixing portion on the fixing bracket.

In addition, the lower coupling pivot shaft is formed of a square pivot shaft formed of a square, and is characterized in that a round portion is formed on each part of the square pivot shaft.

In addition, it is characterized in that it is provided with an inlet formed on one side of the lower coupling release groove so that the horizontal surface of the square rotation shaft is inserted, and a circular rotation groove formed circularly extending above and below the inlet.

In addition, the upper and lower surfaces of the lower coupling pivot shaft are formed as horizontal surfaces, and both sides are formed as circular parts.

In addition, it characterized in that the amount of the lower engaging pivot is provided with an inlet formed on one side of the lower engaging release groove so that the horizontal surface is inserted, and a circular rotating groove formed circularly extending above and below the inlet.

In addition, it is characterized in that it is located on the other side of the fixing bracket, and is composed of a rotating piece that is through-coupled to the other side of the lower coupling shaft.

In addition, a first coupling hole formed in the pivoting piece, a second coupling hole formed adjacent to the coupling pivoting hole formed on the other side of the fixing bracket facing the inner surface of the pivoting piece, and the lower coupling pivoting shaft on the other side of the fixing bracket A spring installed in the outer circumference of the pivot member through which the outer circumference of the exposed portion exposed through the coupling pivot hole is inserted; The lower end of the spring is coupled to the second coupling hole, and the upper end of the other side of the spring is configured to be coupled to the first coupling hole.

In addition, the fixing and releasing portions include a head portion, a release groove formed horizontally extending to the other side of the head portion, a fixing jaw formed on one side of the other side of the release groove, and a coupling rod on the other side of the fixing jaw, and the other side of the coupling rod It characterized in that it is provided with an extension rod formed in the extension, and a spring inserted into the outer circumference of the extension rod.

In addition, the coupling rod is inserted into the coupling hole formed on one side of the fixing bracket, the extension rod is inserted into the coupling hole formed on the other side of the fixing bracket, the coupling rod located inside the fixing bracket and the extension rod formed in extension It characterized in that the spring and the release groove and the release groove and the fixing groove (formed on one side and the other side of the curved groove) are formed so that the fixing jaw is detached.

The present invention combines and separates the upper and lower coupling rotation shafts provided on the fixing bracket of the loader in the upper and lower coupling separation grooves provided on the adapter frames provided on both sides of the tractor, and the fixed brackets are connected to the lower coupling rotation shafts. By rotating the rotating part and the fixing part and the releasing part to be operated in cooperation with each other, the lower coupling rotation shaft installed in the fixing bracket is easily rotated to both sides of the rotation part, and the lower coupling rotation shaft is provided in the lower coupling separation groove provided in the adapter frame. It has the effect of more easily and quickly combining and separating the loader having the fixed bracket from the adapter frame provided in the tractor by making it easier to assemble and detach.

In addition, the present invention is connected to the rotating part by inserting and releasing the fixing and releasing portions that are brought in and out of the coupling holes of the fixing bracket in the curved groove formed in the rotating portion connected to the lower coupling rotating shaft installed in the fixing bracket. The lower coupling rotation shaft has an effect of stably coupling and separating from the lower coupling release groove provided in the adapter frame.

1 is a perspective view according to the present invention.
Figure 2 is an exploded perspective view according to the present invention.
3 is a front view according to the present invention.
4 is a rear view according to the present invention.
5 and 6 is an operation of the rotating unit according to the present invention.
7 and 8 is an operation of the rotating piece and the spring and the fixing hook connected to the fixing bracket according to the present invention.
9 is a schematic view showing the upper and lower coupling pivot shaft and the upper and lower coupling release groove according to the present invention.
10 is an operation diagram of the first embodiment of the lower coupling pivot according to the present invention.
11 is a functional diagram of a second embodiment of the lower coupling pivot according to the present invention.
12 is a perspective view of a fixing and releasing unit according to the present invention.
13 to 15 are functional views of the fixing and releasing portions according to the present invention.
16 is a schematic view showing a loader according to the present invention.
17 is a schematic cross-sectional view showing a spring installed on the outside of the fixing bracket and the inside of the pivoting piece according to the present invention.

In order to fully understand the present invention, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

The embodiments of the present invention may be modified in various forms, and the scope of the present invention should not be interpreted as being limited to the embodiments described in detail below. This embodiment is provided to more safely describe the present invention to those skilled in the art.

Accordingly, the shape of the elements in the drawings may be exaggerated to emphasize a clearer description. It should be noted that in each drawing, the same members may be indicated by the same reference numerals.

1 is a perspective view according to the present invention, FIG. 2 is an exploded perspective view according to the present invention, FIG. 3 is a front view according to the present invention, FIG. 4 is a rear view according to the present invention, and FIGS. 5 and 6 are the present invention 7 and 8 is an action view of the pivoting piece connected to the fixing bracket according to the present invention, a spring and a fixing hook, and FIG. 9 is an upper and lower coupling rotation shaft and phase according to the present invention. , Schematic diagram showing the lower coupling release groove, FIG. 10 is an operation diagram of the first embodiment of the lower coupling rotation shaft according to the present invention, and FIG. 11 is an operation diagram of the second embodiment of the lower coupling rotation shaft according to the present invention, 12 is a perspective view of a fixing and releasing unit according to the present invention, FIGS. 13 to 15 are functional views of a fixing and releasing unit according to the present invention, FIG. 16 is a schematic view showing a loader according to the present invention, and FIG. 17 is the present invention According to the outside of the fixing bracket and the inside of the rotating piece In a schematic cross-sectional view showing a spring is installed.

The loader detachable connection device according to the present invention will be described in detail with reference to FIGS. 1 to 17 as follows.

The loader detachable connection device according to the present invention is composed of a loader 20, an upper coupling rotating shaft 30, a lower coupling rotating shaft 40, a rotating portion 50, and a fixing and releasing portion 60. .

The loader 20 is as shown in Figure 1, 2, 3, 4, 16, the loader 20 is fixed bracket 22, boom 24, arm 25 and , A cylinder 26 and a bucket 27.

The fixing brackets 22 provided in plural of the loaders 20 are configured to be coupled to adapter frames 21 fixedly installed on both sides of the tractor, respectively.

In addition, the fixing bracket 22 is configured to be separated from the adapter frame 21.

On the adapter frame 21, upper and lower coupling release grooves 21a and 21b are formed at upper and lower sides of one side, and the fixing bracket 22 is coupled to the upper and lower coupling separation grooves 21a and 2b. ) Upper and lower parts of the upper and lower coupling shafts 30 and 40 to be described later are provided and configured.

Meanwhile, the loader 20 is configured to be driven in connection with a fixing bracket 22 coupled to the adapter frame 21.

In addition, one end of the fixing bracket 22 is configured to be driven in connection with the boom stand (24).

The arm 25 is connected to one end of the boom 24 to be driven.

A bucket bracket 27a is connected to the front end of the arm 25 to be driven.

In addition, one end of the bucket bracket 27a is configured to be driven in conjunction with the bucket 27.

In addition, the boom stand 24 and the arm 25 are configured to be driven by being connected to a cylinder 26.

The boom stand 24 and the fixed bracket 22 are configured to be connected to the cylinder 23 to be driven.

The upper coupling rotation shaft 30 is configured to be provided horizontally on the upper portion of the fixing bracket 22.

2 and 10, the upper coupling rotation shaft 30 is configured to be coupled to or separated from the upper coupling release groove 21a formed on the upper portion of the adapter frame 21. As shown in FIGS.

On one side of the upper coupling release groove 21a, an inlet 21a-1 through which the upper coupling rotation shaft 30 enters and exits is formed, and a coupling rotation circular shape extending upwardly and downwardly inside the inlet 21a-1. The part 21a-2 is formed and comprised.

That is, the upper coupling rotation shaft 30 is configured to enter the inlet 21a-1 and be coupled to the inner circumference of the coupling rotation circular portion 21a-2.

The lower coupling rotation shaft 40 is configured to be provided horizontally on the lower portion of the fixing bracket 22, as shown in Figures 2 and 10.

The lower coupling rotation shaft 40 is configured to be rotated by being coupled to coupling rotation holes 40b formed on both lower sides of the fixing bracket 22.

It is configured to be installed in the e-ring 40d in the groove 40c formed in the outer circumference of one side of the lower coupling rotation shaft 40 inserted into the coupling rotation hole 40b.

The lower coupling rotation shaft 40 is configured to be coupled to or separated from the lower coupling release groove 21b formed in the lower portion of the adapter frame 21.

As shown in FIG. 10, the first embodiment of the lower coupling rotation shaft 40 as described above, the lower coupling rotation shaft 40 is formed of a square rotation shaft 40a formed in a square shape.

The square rotation shaft 40a is preferably formed in a rectangle.

Round portions 41a are formed on the respective portions of the square rotation shaft 40a.

In addition, it is composed of an inlet (21b-1) formed on one side of the lower coupling release groove (21b) so that the horizontal surface (42a) of the square pivot shaft (40a) is inserted.

It is composed of a circular rotation groove (21b-3) formed circularly extending above and below the inlet (21b-1).

On the other hand, the horizontal surface portion 41b formed on the upper, lower or one side, the other side of the square rotation shaft 40a is more easily inserted into and coupled to the inner upper and lower surfaces of the inlet 21b-1, or easily separated. It is to make it.

As described above, after the amount of the square rotation shaft 40a is inserted into the circular rotation groove 21b-3 through the inlet 21b-1 to the outside of the horizontal surface portion 41b, the square rotation shaft ( 40a) is connected to the rotating part 50, which will be described later, and is rotated in the fixing bracket 22, so that the square rotating shaft 40a rotates 90 degrees from the inner circumference of the circular rotating groove 21b-3 to rotate the square. The coaxial 40a is stably engaged and rotated on the inner circumference of the circular pivoting groove 21b-3, so that the rectangular pivot shaft 40a coupled to the circular pivot is not disengaged from the inlet 21b-1. It is stably rotated at the inner circumference of the groove 21b-3.

On the other hand, as shown in FIG. 11, the second embodiment of the lower coupling rotation shaft 40, the upper and lower surfaces of the lower coupling rotation shaft 40 are formed by horizontal surfaces 41, and both sides are circular parts. It is formed and composed of (42).

The amount of the lower coupling rotation shaft 40 is composed of an inlet 21b-1 formed at one side of the lower coupling release groove 21b so that the horizontal surface 41 is inserted.

It is configured to be provided with a circular rotation groove (21b-3) formed circularly extending in the upper and lower parts of the inlet (21b-1) as described above.

On the other hand, the horizontal surface 41 formed on the upper and lower portions of the lower coupling rotation shaft 40 is more easily inserted into and coupled to the inner upper and lower surfaces of the inlet 21b-1, or to facilitate separation. .

As described above, after the amount of the lower coupling rotation shaft 40a is inserted and seated in the circular rotation groove 21b-3 through the inlet 21b-1 to the outside of the horizontal surface 41, the lower coupling assembly The coaxial 40 is connected to the rotating part 50, which will be described later, and is rotated in the fixing bracket 22, so that the lower coupling rotating shaft 40 rotates 90 degrees from the inner circumference of the circular rotating groove 21b-3. The lower coupling rotation shaft 40 is stably engaged and rotated on the inner circumference of the circular rotation groove 21b-3 so that the lower coupling rotation shaft 40 is coupled to the inlet 21b-1. It does not deviate and is stably rotated on the inner circumference of the circular rotation groove 21b-3.

As shown in Figs. 1 to 3, 5, and 6, the rotation part 50 is configured to be located outside one side of the fixing bracket 22.

In addition, one side of the lower coupling rotation shaft 40 is configured to penetrate the rotation portion 50.

That is, one side of the lower coupling rotation shaft 40 is assembled to the assembly hole 51 formed in the rotation part 50.

In other words, the other side of the lower coupling pivot shaft 40 is installed through the coupling bracket 22 so as to be rotated, and one side of the lower coupling pivot shaft 40 is attached to one side surface of the fixing bracket 22. It is installed to penetrate and is configured to be coupled to the assembly hole 51 on one side of the exposed lower coupling shaft 40.

A handle 52 having a predetermined length is installed on the outer circumference of the rotating part 50.

The handle 52 is for the user to easily grip the hand and rotate the pivoting part 50 connected to the handle 52 more easily.

On the other hand, a curved groove 61 is formed on the outer circumference of the assembly hole 51, and the release and fixing grooves 61a and 62b are formed on both sides of the curved groove 61 and are configured. On the inner circumference of the curved groove 61, the release groove 62a of the fixing and releasing portion 50, which will be described later, is configured to move.

In addition, the release and fixing grooves (61a, 61b) is configured to be inserted and released fixed jaw (62b) to be described later.

On the other hand, as shown in Figure 17, the fixing bracket 22 is located on the other side of the outer side, it is composed of a pivoting piece 70 through the other side of the lower coupling shaft (40).

It is composed of a first coupling hole (72a) formed in the pivoting piece 70 as described above.

It is composed of a second coupling hole (72b) formed adjacent to the coupling rotation hole (40b) formed on the other side of the fixing bracket 22 facing the inner surface of the rotating piece (70).

The lower coupling rotation shaft 40 is inserted through the coupling rotation hole 40b on the other side of the fixing bracket 22, and the outer circumference of the exposed portion b exposed through the outside of the rotation member 73 through which it is inserted. It consists of a spring (s) inserted into the perimeter.

One lower end (s-1) of the spring (s1) is coupled to the second coupling hole (72b), the other upper end (s-2) of the spring (s1) is coupled to the first coupling hole (72a) It is configured.

In addition, when the exposed portion (b) is inserted through the assembly coupling hole (70a) formed in the pivoting piece (70) and exposed to the other side of the pivoting piece (70), the coupling formed on the outer circumference of the exposed portion (b) E-ring (70b) is coupled to the groove (70b-1) is configured so that the exposed portion (b) does not deviate from the other side of the assembly coupling hole (70a) of the rotating piece (70).

After the lower coupling rotation shaft 40 is inserted into the circular rotation groove 21b-3 of the lower coupling separation groove 21b, it is connected to the rotation coupling rotation shaft 40 and fixed bracket 22 When the connected rotating portion 40 installed on one side of the rotation rotates 90 degrees clockwise, the lower coupling rotating shaft 40 installed in the circular rotating groove 21b-3 in connection with the rotating portion 40 is clockwise. Rotated 90 degrees, the horizontal surface 41 of the lower coupling rotation shaft 40 is located above and below the circular rotation groove 21b-3, and the circular portion 42 is the circular rotation groove 21b-3 When maintaining the locked state in the lower engaging pivot (40) to the circular pivoting groove (21b-3) to prevent the escape from the inlet (21b-1) connected to,

7 and 8, the exposed portion (b) exposed on the other side of the fixed bracket (22) is inserted into the pivoting member (73) through which it is coupled, and the fixed bracket (22) The other side and the spring (s) installed in conjunction with the inner side of the pivoting piece (70) is configured to maintain a restored state.

As described above, when the spring (s) maintains the restoring state, the lower coupling rotation shaft (40) coupled with the pivoting piece (70) does not deviate from the lower coupling release groove (21b) and is stably seated. , Prevents the lower coupling rotation shaft 40 from separating from the inside of the lower coupling separation groove 21b, due to the strong external force of the rotation unit 50 and the lower coupling rotation shaft 40,

In order to lock the lower coupling rotation shaft 40 in the lower coupling separation groove 21b again while the lower coupling rotation shaft 40 is released from the lower coupling separation groove 21b, the rotation unit 50 It is to make the rotation, which is locked in the release of the rotation unit 50 when rotated with) a force that is converted from the expansion of the spring (s) to the restoring state.

In addition, in order for the lower coupling rotational shaft 40 to deviate from the circular rotational groove 21b-3 of the lower coupling release groove 21b, it is connected to the rotational coupling rotational shaft 40 and the fixed bracket 22 When the connected rotating portion 40 installed on one side of the rotation rotates 90 degrees counterclockwise, the lower coupling rotating shaft 40 installed in the circular rotating groove 21b-3 in connection with the rotating portion 40 is clocked. The horizontal surface 41 of the lower coupling rotation shaft 40 rotated 90 degrees in the opposite direction is the horizontal surface 21b-2 formed on the upper and lower portions of the inlet 21b-1 of the lower coupling groove 21b. ), The upper and lower horizontal surfaces 41 of the lower coupling rotation shaft 40 become horizontal, so that the lower coupling rotation shaft 40 is separated from the inner circumference of the circular rotation groove 21b-3. city,

7 and 8, the exposed portion (b) exposed on the other side of the fixed bracket (22) is inserted into the pivoting member (73) through which it is coupled, and the fixed bracket (22) The other side and the spring (s) installed in connection with the inner side of the pivoting piece (70) is expanded to be configured to maintain an expanded state.

The fixing and releasing portions 60 are horizontally inserted into one side and the other side of the fixing bracket 22, as shown in FIGS. 12, 13, 14 and 15. It is installed and is configured to be fixed and released by rotating the rotating part 50 in the fixing bracket 22.

The fixing and releasing portion 60 as described above is composed of a head portion 62 and a release groove 62a formed horizontally extending on the other side of the head portion 62.

It consists of a fixed jaw (62b) formed on one side on the other side of the release groove (62a).

It is composed of a coupling rod (62c) on the other side of the fixed jaw (62b).

It consists of an extension rod (62d) formed on the other side of the coupling rod (62c).

It consists of a spring (s1) inserted into the outer circumference of the extension rod (62d).

One side of the spring (s1) is in contact with the other side of the extension rod (62d), the other side of the spring (s1) is configured to be installed in contact with the other inner side of the fixing bracket (22).

And the coupling rod (62c) is inserted into the coupling hole (22a) formed on one side of the fixing bracket 22, the extension rod (62d) is in the coupling through hole (22b) formed on the other side of the fixing bracket (22) It is inserted and constructed.

It is composed of the coupling rod (62c) located inside the fixing bracket (22) and the extension rod (62d) formed extending.

The other side of the extension rod (62d) is configured to be inserted into the coupling hole (22b) formed on the other side of the fixing bracket 22 facing the coupling hole (22a).

Iraheon is configured to be inserted into the spring (s1) on the outer circumference of the extension rod (62d).

One side of the spring (s1) is in contact with the other side of the extension rod (62d), the other side of the spring (s1) is the outer circumferential surface of the coupling hole (22b) located inside the fixing bracket (22) It is installed in contact with the configuration.

The release groove (62a) and the fixed jaw (62b) is configured to be formed of release and fixing grooves (61a, 61b) formed on one side and the other side of the curved groove (61) to be detached.

That is, the release groove 62 is configured to move in the curved groove 61.

In addition, the outer circumference of the fixed jaw 62b is coupled to and separated from the inner circumference of the released and fixed grooves 61a, 61b so that the fixed jaw 62b is coupled to the released and fixed grooves 61a, 61b. When the rotating portion 50 is fixed on one side of the fixing bracket 22, and when the fixing jaw 62b is released from the release and fixing grooves 61a, 61b, the rotating portion 50 is the fixing bracket It is configured to move on one side of (22).

5, 6, 7, 7, 8, 10, 11, 13, 14, 15 will be described as follows.

First, the upper and lower coupling rotation shafts 30 provided to the fixing bracket 22 by the user in the upper and lower coupling release grooves 21a and 21b of the adapter frame 21 provided on both sides of the tractor, 40) to combine,

When the lower coupling rotation shaft 40 connected to the rotation unit 50 standing vertically on one side of the fixing bracket 22 is inserted into the lower coupling release groove 21b, the fixing bracket ( The upper coupling pivot 30 of 22) is also simultaneously coupled to the inside of the upper coupling release groove 21a of the adapter frame 21.

As described above, when the upper and lower coupling rotation shafts 30 and 40 are inserted into the upper and lower coupling separation grooves 21a and 21b, the rotation unit 50 installed on one side of the fixing bracket 22 To release the outer circumference of the fixing jaw 62b of the fixing and releasing portion 60 to the inner circumference of the release and fixing groove 61a formed on one side of the curved groove 61,

When the head portion 62 of the fixing and releasing portion 60 is pressed, the fixing jaw 62b descends downward in the pressing direction, and the fixing jaw 62b at the inner circumference of the release and fixing groove 61b Is separated and ready to move to the release and fixing groove 61b and the curved groove 61 of the release groove 62a,

After the spring (s1) inserted into the outer circumference of the extension rod (62b) formed extending to the coupling rod (62c) connected to the fixed jaw (62b) to be maintained in a compressed state.

Again, when the pivoting part 50 is rotated from one side to the other side and maintained in a horizontal state, at this time, the release groove 62b moved along the inside of the curved groove 61 is the other side of the curved groove 61 When located in the release and fixing groove (61b) formed in the fixed jaw (62b) associated with the release groove 62 is coupled to the inside of the release and fixing groove (61b), wherein the fixed jaw (62b) The spring s1 inserted into the outer circumference of the extension rod 62b formed on the coupling rod 62c connected to is maintained in an expanded state.

As described above, when the rotating part 50 maintains a horizontal state on one side of the fixing bracket 22, the horizontal surface 41 of the amount of the lower coupling rotation shaft 40 connected to the rotating part 50 is It is rotated 90 degrees clockwise from the inside of the circular rotation groove (21b-3) is located above and below the circular rotation groove (21b-3), the circular portion (62b) of the lower coupling shaft 40 is The lower coupling rotation shaft 40 is locked inside the lower coupling separation groove 21b such that the lower coupling rotation shaft 40 is blocked from the lower coupling separation groove 21b by blocking the inlet 21b-1. In order to be stably rotated, the fixing bracket 22 provided on the loader 20 is coupled to the adapter frame 21 of the tractor to mount the loader 20 on the tractor to be used substantially. .

When the rotating part 50 is maintained in a locked state within the lower engaging and disengaging groove 21b in a horizontal state on one side of the fixing bracket 22, the fixing bracket 22 ) On the other side, the inner side of the pivoting piece (70) connected to the other side of the lower coupling pivot shaft (40) connected to the pivoting part (50), and the lower coupling shaft of the other side of the fixing bracket (22) (40) The spring (s) installed on the coupling portion is configured to be maintained in a restored state in an expanded state.

In order to separate the fixing bracket 22 of the loader 20 from the adapter frame 21 installed in the tractor, it is sufficient to act contrary to the above-described action.

The embodiments according to the present invention described above are only exemplary, and those skilled in the art to which the present invention pertains will appreciate that various modifications and other equivalent embodiments are possible. . Therefore, it will be understood that the present invention is not limited to the forms mentioned in the above detailed description.

Therefore, the true technical protection scope of the present invention should be determined by the technical spirit of the appended claims. In addition, it should be understood that the present invention includes all modifications, equivalents, and substitutes within the spirit and scope of the invention as defined by the appended claims.

20: loader 21: adapter frame
21a: upper coupling release groove 21b: lower coupling release groove
21b-1: Entrance 21b-3: Circular pivoting groove
22: Fixing bracket 30: Upper coupling pivot
40: lower coupling pivot 41: horizontal plane
41a: round part 42: circular part
42a: horizontal plane 50: rotating part
60: fixing and release portion 61: fixing groove
61a, 61b: fixing and releasing part 62: head
62a: release groove 62b: fixed jaw
62c: connecting rod 62d: extension rod
70: Rotating flight 72a: First coupling hole
72b: second coupling hole 73: rotating member
b: exposed part s, s1: spring
s-1: one side bottom s-2: the other side top

Claims (9)

In the loader detachable connection device,
An adapter frame 21 fixedly installed on both sides of the tractor and having upper and lower coupling release grooves 21a and 21b on one side and a fixing bracket 22 coupled to and separated from the adapter frame 21 are provided. A loader 20;
An upper coupling rotation shaft 30 which is horizontally provided on an upper portion of the fixing bracket 22 and coupled to the upper coupling release groove 21a;
A lower coupling rotation shaft (40) provided horizontally under the fixing bracket (22) and coupled to the lower coupling release groove (21b);
A rotating part 50 located on one side outside of the fixing bracket 22, having a curved groove 61, and having one side of the lower coupling rotation shaft 40 installed through the coupling;
A fixing and releasing portion 60 provided to be fixedly and released by rotating and rotating the rotating portion 50 in the fixing bracket 22 by horizontally inserting and installing horizontally on one side and the other side of the fixing bracket 22,
The lower coupling rotation shaft 40 is formed of a square rotation shaft (40a) formed in a square, a loader detachable connection device characterized in that the round portion (41a) is formed on each part of the square rotation shaft (40a). delete According to claim 1,
The inlet 21b-1 formed on one side of the lower coupling release groove 21b and the upper and lower portions of the inlet 21b-1 circularly extended so that the horizontal surface 42a of the square rotation shaft 40a is inserted. Loader detachable connection device characterized in that it is provided with a circular rotation groove (21b-3) formed. According to claim 1,
The upper and lower surfaces of the lower coupling rotation shaft 40 are formed by a horizontal surface 41, and both sides are formed by a circular portion 42, a loader detachable connection device. The method of claim 4,
The inlet 21b-1 formed on one side of the lower engaging and detaching groove 21b so that the horizontal surface 41 is inserted in the amount of the lower engaging rotating shaft 40, and the upper and lower parts of the inlet 21b-1. Loader detachable connection device, characterized in that provided with a circular rotation groove (21b-3) formed to extend in a circle. According to claim 1,
Loader detachable connection device, characterized in that it is located on the other side of the fixing bracket (22), and consists of a pivoting piece (70) penetrated to the other side of the lower coupling shaft (40). The method of claim 6,
A first coupling hole (72a) formed on the pivoting piece 70, and a second formed adjacent to the coupling pivoting hole (40b) formed on the other side of the fixing bracket 22 facing the inner surface of the pivoting piece (70) The outer circumference of the exposed portion (b) through which the coupling hole (72b) and the lower coupling rotation shaft (40) are exposed through the coupling rotation hole (40b) is inserted into the other side of the fixing bracket (22). A spring (s) inserted into the outer circumference of the rotation member (73);
One lower end (s-1) of the spring (s1) is coupled to the second coupling hole (72b), the other upper end (s-2) of the spring (s) is coupled to the first coupling hole (72a) Loader detachable connection device, characterized in that configured to be. According to claim 1,
The fixing and releasing portion 60 includes a head portion 62, a releasing groove 62a formed horizontally on the other side of the head portion 62, and a fixing jaw formed on one side on the other side of the releasing groove 62a. (62b), the coupling rod (62c) on the other side of the fixed jaw (62b), the extension rod (62d) formed extending on the other side of the coupling rod (62c), and inserted into the outer circumference of the extension rod (62d) Loader detachable connection device, characterized in that provided with an installed spring (s1). The method of claim 8,
The coupling rod 62c is inserted into a coupling hole 22a formed on one side of the fixing bracket 22, and the extension rod 62d is inserted into a coupling hole 22a formed on the other side of the fixing bracket 22. The spring (s1), the release groove (62a), and the fixed jaw (62b) inserted into the coupling rod (62c) and the extension rod (62d) formed extending inside the fixing bracket (22) Loader detachable connection device characterized in that the release and fixing grooves (61a, 61b) formed on one side and the other side of the curved groove 61 to be detached.

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