KR20200002056A - A loader connection device for tractor - Google Patents

Abstract

The present invention relates to a loader connection device for a tractor which allows upper and lower coupling and rotating shafts provided on a fixing bracket of each of loaders to be coupled to or separated from upper and lower coupling and detaching grooves provided on each of adapter frames provided on both sides of a tractor, and which a turning part linked with the lower coupling and rotating shaft and turnably installed on the fixing bracket and fixing and releasing parts to be linked with each other and operated to easily turn the lower coupling and rotating shaft installed on the fixing bracket to both sides of the turning part so that the lower coupling and rotating shaft is more easily coupled to and separated from the lower coupling and detaching groove provided on the adapter frame, thereby coupling the loader having the fixing bracket to the adapter frame provided on the tractor or separating the same therefrom more easily and quickly. The loader connection device comprises: the loaders fixed and installed on both sides of the tractor, and having the adapter frame with the upper and lower coupling and detaching grooves on upper and lower portions of one side thereof, and the fixing bracket coupled to or separated from the adapter frame; the upper coupling and rotating shaft horizontally provided on an upper portion of the fixing bracket to be coupled to the upper coupling and detaching groove; the lower coupling and rotating shaft horizontally provided on a lower portion of the fixing bracket to be coupled to the lower coupling and detaching groove; the turning part positioned on an outer side of one side of the fixing bracket, having a curved groove, and having one side of the lower coupling and rotating shaft coupled and installed therethrough; and the fixing and releasing parts horizontally provided on one side and the other side of the fixing bracket to be inserted and installed therethrough so that the turning part is turned on the fixing bracket to be fixed and released.

Description

A loader connection device for tractor

The present invention relates to a loader connecting device of the tractor, and more particularly, to a loader connecting device of the tractor for easily coupling and detaching the loader in the tractor.

As a technique of the coupling device of the loader of the tractor;

Republic of Korea Patent Publication No. 10-2015-0124324 (released November 05, 2015) "loader connection device and tractor front loader including the same" is proposed,

As a connecting device for connecting the loader detachably attached to the front of the tractor,

It is elastically installed on the elastic shaft (elastic support shaft) spaced from the fixed shaft that is horizontally arranged and is elastic (elastic rotation) to the position where the binding with the fixed shaft is released from the position that is engaged with the fixed shaft and the elastic shaft (elastic support shaft) Including a hook portion having a hooking jaw on one side of the peripheral surface and a stopper portion disposed on an adjacent side of the hook portion and intermittently interlocking the elasticity (elastic rotation) of the hook portion elastically (elastic rotation) installed on the carbon support shaft (elastic support shaft). With the hook-type one-touch fastening method, it is possible to attach and detach the front roader easily and quickly without using much force compared to the conventional fixing pin or bolt fastening method. It is related to the loader connection device to reduce the inconvenience and secure the ease and to shorten the time.

Republic of Korea Patent Publication No. 10-2015-0124324 (November 5, 2016 disclosure)

The present invention is coupled to and separated from the upper and lower coupling pivot shaft provided in the fixing bracket of the loader in the upper, lower coupling release groove provided in the adapter frame provided on both sides of the tractor, in conjunction with the lower coupling pivot shaft fixed bracket The rotating part installed on the rotating part and the fixing and releasing part are connected to each other so that the lower engaging pivot installed on the fixing bracket can be easily rotated to both sides of the rotating part so that the lower engaging pivot is provided on the lower engaging release groove provided in the adapter frame. It is an object of the present invention to provide a loader connection device of a tractor that allows the loader having a fixed bracket to be easily connected and detached more easily and quickly from the adapter frame provided in the tractor.

In addition, the present invention is connected to the rotating part by inserting and detaching the fixed and released portion coming in and out of the spring in the coupling hole of the fixing bracket in the curved groove formed in the rotating part is connected to the lower coupling rotating shaft installed in the fixed bracket It is an object of the present invention to provide a loader connection device for the tractor that allows the lower coupling pivot to be stably coupled and separated from the lower coupling release groove provided in the adapter frame.

In order to achieve the above object, the present invention is a loader connection device of the tractor, the adapter frame is fixed to both sides of the tractor and the upper, lower coupling release groove is formed on one side, the lower side, and coupled with the adapter frame and A loader having a fixing bracket separated therefrom; An upper coupling pivot shaft which is horizontally provided on the fixing bracket and coupled to the upper coupling release groove; A lower coupling pivot shaft provided horizontally under the fixed bracket and coupled to the lower coupling release groove; A rotating part disposed on one side of the fixing bracket and provided with a curved groove, and having one side of the lower coupling rotating shaft penetrated therethrough; It is characterized in that the penetrating and inserting horizontally installed on one side and the other side of the fixing bracket to constitute a fixing and releasing portion provided to rotate and fix and release the rotating part in the fixing bracket.

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

In addition, the inlet formed on one side of the lower coupling departure groove so that the horizontal plane of the square rotation shaft is inserted, characterized in that it is provided with a circular rotation groove extending in the upper and lower portions of the inlet in a circular shape.

In addition, the upper and lower surfaces of the lower coupling pivot is formed in a horizontal plane, both sides are characterized in that formed in a circular portion.

In addition, it characterized in that the inlet formed on one side of the lower coupling departure groove so that the horizontal plane of both of the lower coupling rotation shaft is inserted, and the circular rotation groove formed to extend in the upper and lower portions of the inlet.

In addition, the fixing bracket is located on the other side of the outer side, characterized in that consisting of a rotating piece penetrated through the other side of the lower coupling rotating shaft.

In addition, the first coupling hole formed in the rotating piece, the second coupling hole formed adjacent to the coupling rotating hole formed on the other side of the fixing bracket facing the inner surface of the rotating piece, and the lower coupling rotating shaft on the other side of the fixing bracket A spring inserted into the outer circumference of the rotating member through which the outer circumference of the exposed portion inserted through and exposed to the engaging rotating hole is inserted; One side lower end of the spring is coupled to the second coupling hole, the other end of the spring is characterized in that configured to be coupled to the first coupling hole.

In addition, the fixing and release portion head, the release groove extending horizontally on the other side of the head portion, the fixing jaw formed on one side on the other side of the release groove, the coupling rod on the other side of the fixing jaw, the other side of the coupling rod It is 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 and the extension rod formed in the interior of the fixing bracket It is characterized in that the spring is inserted and the release groove and the release groove and the fixing jaw formed in one side and the other side of the curved groove so that the insertion jaw is removed.

The present invention is coupled to and separated from the upper and lower coupling pivot shaft provided in the fixing bracket of the loader in the upper, lower coupling release groove provided in the adapter frame provided on both sides of the tractor, in conjunction with the lower coupling pivot shaft fixed bracket The rotating part installed on the rotating part and the fixing and releasing part are connected to each other so that the lower engaging pivot installed on the fixing bracket can be easily rotated to both sides of the rotating part so that the lower engaging pivot is provided on the lower engaging release groove provided in the adapter frame. By more easily engaging and detaching, the loader having the fixing bracket has an effect of easily and quickly engaging and detaching from the adapter frame provided in the tractor.

In addition, the present invention is connected to the rotating part by inserting and detaching the fixed and released portion coming in and out of the spring in the coupling hole of the fixing bracket in the curved groove formed in the rotating part is connected to the lower coupling rotating shaft installed in the fixed bracket The lower coupling pivot has an effect of stably coupling and separating from the lower coupling departure 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 part according to the present invention.
Figure 7 and Figure 8 is a view of the action of the rotating piece and the spring and the fixing hook connected to the fixing bracket according to the present invention.
Figure 9 is a schematic diagram showing the upper, lower coupling pivot and the upper, lower coupling release groove in accordance with the present invention.
10 is an operation of the first embodiment of the lower coupling pivot shaft according to the present invention.
11 is an operation of the second embodiment of the lower coupling pivot shaft according to the present invention.
12 is a perspective view of the fixing and releasing unit according to the present invention.
13 to 15 is an operation of the fixing and releasing unit according to the present invention.
16 is a schematic view showing a loader according to the present invention.
Figure 17 is a schematic cross-sectional view showing a spring installed on the outside of the fixing bracket and the inside of the rotating 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 construed as being limited to the embodiments described in detail below. This embodiment is provided to more safely explain the present invention to those skilled in the art.

Therefore, the shape of the elements in the drawings and the like may be exaggerated to emphasize a more clear description. It should be noted that the same members in each drawing are sometimes shown with the same reference numerals.

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

The loader connection device of the tractor according to the present invention will be described in detail with reference to those shown in FIGS. 1 to 17.

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

As shown in FIGS. 1, 2, 3, 4, and 16, the loader 20 includes a fixing bracket 22, a boom 24, an arm 25, and the loader 25. And a cylinder 26 and a bucket 27.

The fixing brackets 22 provided in plurality of the loaders 20 are configured to be coupled to the adapter frames 21 fixed to both sides of the tractor.

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

The adapter frame 21 has upper and lower coupling release grooves 21a and 21b formed at upper and lower sides thereof, and the fixing bracket 22 is coupled to the upper and lower coupling release grooves 21a and 2b. The upper and lower portions of) are provided with upper and lower coupling pivot shafts 30 and 40 which will be described later.

On the other hand, the loader 20 is configured to be driven in conjunction with the fixing bracket 22 is coupled to the adapter frame 21.

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

Arm 25 is connected to one end of the boom 24 is configured to be driven.

The tip of the arm 25 is configured to be driven in conjunction with the bucket bracket (27a).

And one end of the bucket bracket (27a) is configured to be driven in conjunction with the bucket (27).

In addition, the boom 24 and the arm 25 is configured to be connected to the cylinder 26 to be driven.

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

The upper coupling pivot 30 is provided horizontally on the top of the fixing bracket (22).

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

An inlet 21a-1 through which the upper coupling pivot shaft 30 enters and exits is formed at one side of the upper coupling release groove 21a, and a coupling rotation circle extending upward and downward inside the inlet 21a-1. The part 21a-2 is formed and comprised.

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

As shown in FIG. 2 and FIG. 10, the lower coupling pivot shaft 40 is provided horizontally in the lower portion of the fixing bracket 22.

The lower coupling rotating shaft 40 is configured to be coupled to the coupling rotating hole (40b) formed on both sides of the lower side of the fixing bracket (22).

It is provided in the ring 40d in the groove 40c formed in the outer circumference of one side of the lower coupling pivot shaft 40 inserted into the coupling pivot hole 40b.

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

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

The square pivot 40a is preferably formed in a rectangle.

Round portions 41a are formed at respective portions of the square pivot 40a.

In addition, the inlet 21b-1 is formed at one side of the lower coupling release groove 21b so that the horizontal plane 42a of the square pivot 40a is inserted.

It is composed of a circular rotating groove (21b-3) extending in a circular shape on the upper and lower portions of the inlet (21b-1).

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

As described above, after being inserted into the circular pivoting groove 21b-3 through the inlet 21b-1 to the outside of the horizontal surface portion 41b of the rectangular pivotal shaft 40a, the rectangular pivotal shaft ( 40a) is connected to the rotating unit 50 to be described later is rotated in the fixing bracket 22, so the square pivot 40a is rotated 90 degrees in the inner circumference of the circular pivot 21b-3, the square The coaxial shaft 40a is stably coupled to the inner circumference of the circular pivoting groove 21b-3 so that the square pivot shaft 40a thus coupled is not separated to the inlet 21b-1. It is rotated stably in the inner circumference of the groove 21b-3.

On the other hand, as shown in Figure 11 a second embodiment of the lower coupling pivot shaft 40, the upper and lower surfaces of the lower coupling pivot shaft 40 is formed in a horizontal plane 41, both sides of the circular portion It is formed by 42 and is comprised.

The inlet 21b-1 is formed at one side of the lower coupling release groove 21b so that both the horizontal plane 41 of the lower coupling pivot shaft 40 is inserted therein.

It is composed of a circular rotating groove (21b-3) formed to extend in the upper and lower portions of the inlet (21b-1) as described above.

On the other hand, the horizontal plane 41 formed on the upper and lower portions of the lower coupling pivot 40 is inserted into the upper and lower surfaces of the inlet 21b-1 to be more easily inserted or detached. .

As described above, the lower coupling pivot is inserted into the circular pivot groove 21b-3 through the inlet 21b-1 to the outside of the horizontal plane 41 of the lower coupling pivot shaft 40a. Coaxial 40 is connected to the rotating unit 50 to be described later is rotated in the fixing bracket 22, so the lower coupling rotating shaft 40 is rotated 90 degrees in the inner circumference of the circular rotating groove (21b-3) The lower coupling pivot shaft 40 is stably coupled to the inner circumference of the circular pivot groove 21b-3 so that the lower coupling pivot shaft 40 is coupled to the inlet 21b-1. It is to be rotated stably in the inner circumference of the circular rotation groove (21b-3) without being separated

As shown in FIGS. 1 to 3, 5, and 6, the pivoting part 50 is configured to be positioned on one side outside of the fixing bracket 22.

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

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

In other words, the other side of the lower coupling pivot shaft 40 is rotatably installed in the fixing bracket 22 so that one side of the lower coupling pivot shaft 40 is rotated on one side of the fixing bracket 22. One side of the lower coupling pivot shaft 40 exposed through the installation is configured to be coupled to the assembly hole 51.

The outer periphery of the pivot 50 is provided with a handle 52 having a predetermined length.

The handle 52 is to allow the user to easily grip the rotating part 50 connected to the handle 52 by holding the hand easily.

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

In addition, the release and fixing groove (61a, 61b) is configured so that the fixing jaw (62b) to be described later is inserted and separated.

On the other hand, as shown in Figure 17, it is composed of a rotating piece 70 which is located outside the other side of the fixing bracket 22, and penetrated through the other side of the lower coupling rotating shaft 40.

It consists of a first coupling hole (72a) formed in the rotating piece 70 as described above.

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

The lower coupling pivot shaft 40 is inserted into the coupling pivot hole 40b on the other side of the fixed bracket 22, so that the outer circumference of the exposed portion b exposed through the outer rotation member 73 is inserted through. It consists of a spring (s) inserted into the circumference.

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

In addition, when the exposed portion (b) is inserted through the assembly coupling hole (70a) formed in the rotating piece 70 and exposed to the other side of the rotating 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) is not separated from the other side of the assembly coupling hole (70a) of the rotating piece (70).

The lower coupling rotation shaft 40 is inserted into the circular rotation groove 21b-3 of the lower coupling release groove 21b and then connected to the rotation coupling rotation shaft 40 and the fixed bracket 22. When the connected rotating part 40 installed at one side of the rotation is rotated 90 degrees clockwise, the lower coupling rotating shaft 40 installed in the circular rotating groove 21b-3 is connected to the rotating part 40 in a clockwise direction. Rotated 90 degrees so that the horizontal plane 41 of the lower engagement pivot 40 is located above and below the circular pivot 21b-3, and the circular part 42 is the circular pivot 21b-3. In order to prevent the separation from the inlet 21b-1 connected to the lower coupling rotating shaft 40 to maintain the locked state in the circular pivoting groove (21b-3),

As shown in Figure 7 and 8, the exposed portion (b) exposed to the other side of the fixing bracket 22 is inserted into the rotating member 73 through which the fixing bracket 22, The other side and the spring (s) installed in connection with the inner side of the rotating piece 70 is configured to maintain a restored state.

As described above, when the spring s maintains the restored state, the lower coupling pivot shaft 40 coupled with the pivot piece 70 is stably seated without being separated from the lower coupling release groove 21b. , Prevents the lower coupling pivot shaft 40 from being separated from the inside of the lower coupling release groove 21b due to the strong external force of the pivot 50 and the lower coupling pivot shaft 40.

In order to lock the lower coupling pivot shaft 40 in the lower coupling release groove 21b while the lower coupling pivot shaft 40 is released from the lower coupling release groove 21b, the pivot unit 50 is rotated. This is to make the rotation locked at the release of the rotating unit 50 at the time of rotation with a force that is converted into a restored state from the expansion of the spring (s).

In addition, the lower coupling rotation shaft 40 is connected to the rotation coupling rotation shaft 40 and the fixed bracket 22 in order to be separated from the circular rotation groove 21b-3 of the lower coupling release groove 21b. When the connected rotating part 40 installed at one side of the counter rotates 90 degrees counterclockwise, the lower coupling rotating shaft 40 installed in the circular rotating groove 21b-3 is connected to the rotating part 40 to watch. The horizontal plane 41 of the lower coupling pivot shaft 40 is rotated 90 degrees in the opposite direction so that the horizontal plane 21b-2 formed at the upper and lower portions of the inlet 21b-1 of the hebei coupling release groove 21b. ) And the upper and lower horizontal surfaces 41 of the lower coupling pivot shaft 40 are in a horizontal state so that the lower coupling pivot shaft 40 is separated from the inner circumference of the circular pivot groove 21b-3. city,

As shown in Figure 7 and 8, the exposed portion (b) exposed to the other side of the fixing bracket 22 is inserted into the rotating member 73 through which the fixing bracket 22, The other side and the spring (s) connected to the inner side of the rotating piece 70 is expanded to maintain the expanded state.

12, 13, 14, and 15, the fixing and releasing portion 60, the fixing and releasing portion 60 is inserted through one side and the other side of the fixing bracket 22 horizontally. Is installed is configured to rotate and fix the rotation unit 50 in the fixing bracket 22 and fixed.

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

It is composed of a fixing jaw (62b) formed on one side on the other side of the release groove (62a).

The other side of the fixing jaw (62b) is composed of a coupling rod (62c).

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 surface of the extension rod (62d), the other side of the spring (s1) is configured to be installed in contact with the other inner side surface 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) to the coupling through hole (22b) formed on the other side of the fixing bracket 22 It is inserted and constructed.

The coupling rod 62c positioned in the fixing bracket 22 and the extension rod 62d are formed.

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

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

One side of the spring s1 abuts the other side surface of the extension rod 62d, and the other side of the spring s1 is an outer circumferential surface of the coupling through hole 22b located inside the fixing bracket 22. It is installed to abut on.

The release and fixing grooves 61a and 61b formed at one side and the other side of the curved groove 61 are formed so that the release groove 62a and the fixing jaw 62b are inserted into and separated from each other.

That is, the release groove 62 is configured such that the release groove 62 is moved.

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

Referring to the operation according to the invention shown in Figures 5, 6, 7, 8, 10, 11, 13, 14, 15 as follows.

First, the user is provided with the upper and lower coupling pivot 30 provided in the fixing bracket 22 in the upper and lower coupling release grooves 21a and 21b of the adapter frame 21 provided on both sides of the tractor. To combine 40)

When the lower coupling pivot shaft 40 connected to the pivot part 50 standing upright on one side of the fixed bracket 22 is inserted into the lower coupling release groove 21b, the fixed bracket ( The upper coupling pivot shaft 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 release grooves 21a and 21b, the rotation unit 50 installed at one side of the fixing bracket 22 is disposed. In order to separate the outer circumference of the fixing jaw 62b of the fixing and releasing portion 60 to the inner circumference of the releasing and fixing groove 61a formed at one side of the curved groove 61,

When the head 62 of the fixing and releasing portion 60 is pressed, the fixing jaw 62b is lowered downward in the pressing direction so that the fixing jaw 62b is formed at the inner circumference of the releasing and fixing groove 61b. Is separated and ready to move to the release and fixation 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) extending to the coupling rod (62c) connected to the fixing jaw (62b) is to be kept in a compressed state.

Again, if the rotating 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 inner side of the curved groove 61 is the other side of the curved groove 61. When positioned in the release and fixing groove (61b) formed in the fixing jaw 62b associated with the release groove 62 is coupled to the interior of the release and fixing groove (61b), the fixing jaw (62b) The spring s1 inserted into the outer circumference of the extension rod 62b extended to the coupling rod 62c connected to the retaining rod 62c is maintained in an expanded state.

As described above, when the rotating part 50 maintains a horizontal state at one side of the fixing bracket 22, both the horizontal surfaces 41 of the lower coupling rotating shaft 40 connected to the rotating part 50 are The circular part 62b of the lower coupling pivot shaft 40 is positioned at the upper and lower portions of the circular pivot groove 21b-3 by being rotated 90 degrees clockwise in the circular pivot groove 21b-3. The lower coupling pivot shaft 40 is blocked by the inlet 21b-1 so that the lower coupling pivot shaft 40 is locked inside the lower coupling release groove 21b. In order to be rotated stably in the coupling, the fixing bracket 22 provided in the loader 20 to the adapter frame 21 of the tractor by mounting the loader 20 to the tractor is used substantially. .

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

In order to separate the fixing bracket 22 of the loader 20 from the adapter frame 21 installed in the tractor, the above-described action may be performed.

The embodiments according to the present invention described above are merely exemplary, and those skilled in the art will appreciate that various modifications and equivalent other embodiments are possible therefrom. . 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 will be defined by the technical spirit of the appended claims. It is also to be understood that the present invention includes all modifications, equivalents and substitutions 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 turning groove
22: fixing bracket 30: upper coupling rotating shaft
40: lower coupling pivot 41: horizontal plane
41a: round part 42: round part
42a: horizontal plane 50: rotating part
60: fixing and releasing portion 61: fixing groove
61a, 61b: fixing and releasing portion 62: head portion
62a: release groove 62b: fixed jaw
62c: coupling rod 62d: extension rod
70: rotation piece 72a: first coupling hole
72b: second coupling hole 73: rotating member
b: exposed portion s, s1: spring
s-1: one side bottom s-2: other top

Claims (9)

In the loader connection of the tractor,
An adapter frame 21 fixed to both sides of the tractor and formed with upper and lower coupling release grooves 21a and 21b on one side and a lower side, and a fixing bracket 22 coupled to and separated from the adapter frame 21. A loader 20 provided therewith;
An upper coupling pivot shaft 30 provided horizontally on an upper portion of the fixing bracket 22 and coupled to the upper coupling release groove 21a;
A lower coupling pivot shaft 40 provided horizontally under the fixed bracket 22 and coupled to the lower coupling release groove 21b;
A rotating part 50 disposed on one side of the fixing bracket 22 and having a curved groove 61 and having one side of the lower coupling pivot shaft 40 penetrated therethrough;
To penetrate and insert horizontally installed on one side and the other side of the fixing bracket 22 constitutes the fixing and releasing portion 60 provided to rotate and fix the rotating part 50 in the fixing bracket 22. A tractor loader device characterized by the above-mentioned. The method of claim 1,
The lower coupling rotating shaft 40 is formed of a square rotating shaft (40a) formed in a quadrangle, the loader connection device of the tractor, characterized in that the rounded portion (41a) is formed on the respective portions of the square rotating shaft (40a) . The method of claim 2,
An inlet 21b-1 formed at one side of the lower coupling release groove 21b and the upper and lower portions of the inlet 21b-1 so as to be inserted into the horizontal plane 42a of the square pivot 40a. The loader connection device of the tractor, characterized in that provided with a circular rotating groove (21b-3) formed. The method of claim 1,
The upper and lower surfaces of the lower coupling pivot shaft 40 is formed as a horizontal surface (41), both sides of the loader connection device, characterized in that formed by a circular portion (42). The method of claim 4, wherein
Inlets 21b-1 formed at one side of the lower coupling release groove 21b and the upper and lower portions of the inlet 21b-1 so that the horizontal plane 41 of the lower coupling pivot shaft 40 is inserted. The loader connection device of the tractor, characterized in that provided as a circular rotating groove (21b-3) extending in a circular shape. The method of claim 1,
Positioning the other side of the fixing bracket 22, the loader connection device of the tractor, characterized in that consisting of a rotating piece 70 through-coupled to the other side of the lower coupling pivot shaft (40). The method of claim 6,
A second coupling hole 72a formed in the pivoting piece 70 and a second coupling hole 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 periphery of the exposed portion (b) exposed through the coupling hole 72b and the lower coupling pivot shaft 40 is inserted through the coupling pivot hole 40b on the other side of the fixing bracket 22. A spring s inserted into the outer circumference of the pivot member 73;
One lower end s-1 of the spring s1 is coupled to the second coupling hole 72b, and the other upper end s-2 of the spring s is coupled to the first coupling hole 72a. The loader connection device, characterized in that configured to be. The method of claim 1,
The fixing and releasing part 60 has a head 62, a release groove 62a extending horizontally on the other side of the head 62, and a fixing jaw formed at one side of the other side of the release groove 62a. 62b, a coupling rod 62c on the other side of the fixing jaw 62b, an extension rod 62d extending on the other side of the coupling rod 62c, and an outer circumference of the extension rod 62d. The loader connection device of the tractor, characterized in that provided with a spring (s1) installed. The method of claim 8,
The coupling rod 62c is inserted into the coupling hole 22a formed at one side of the fixing bracket 22, and the extension rod 62d is inserted into the coupling hole 22a formed at the other side of the fixing bracket 22. And the spring s1 inserted into the coupling rod 62c and the extension rod 62d formed in the fixing bracket 22, the release groove 62a, and the fixing jaw 62b. The loader connection device of the tractor, characterized in that the insertion and release grooves formed on one side and the other side of the curved groove 61 and the fixing groove (61a, 61b) is formed.

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