Tractor

1. A tractor comprising:

a cabin ( 100 ) composed of a plurality of frames and configured to provide a seating space of a user;

a vehicle body ( 200 ) composed of an engine ( 20 ) and a transmission ( 30 );

links ( 110 , 121 , 122 ) having one end coupled to a front portion of the cabin ( 100 ) and the other end coupled to a front portion of the transmission ( 30 ) to connect the cabin ( 100 ) and the transmission ( 30 ) at a front portion;

first and second front elastic cylinders ( 130 a , 130 b ) installed at one side of the links ( 121 , 122 ), an elastic member surrounding the first and second front elastic cylinders ( 130 a , 130 b ) to mitigate vibrations of the cabin ( 100 ); and

first and second rear elastic cylinders ( 150 a , 150 b ) having one end coupled to a rear portion of the cabin ( 100 ) and the other end coupled to a rear portion of the transmission ( 30 ) to connect the cabin ( 100 ) and the transmission ( 30 ) at a rear portion, an elastic member surrounding the first and second rear elastic cylinders ( 150 a , 150 b ) to mitigate vibrations of the cabin ( 100 ).

2. The tractor according to claim 1 ,

wherein the links include a first link ( 121 ) and a second link ( 122 ) extending in forward and rearward directions, and a central link ( 110 ) extending in a lateral direction to connect one end of the first link ( 121 ) and one end of the second link ( 122 ), and

wherein the first and second front elastic cylinders ( 130 a , 130 b ) are installed at the first link ( 121 ) and the second link ( 122 ), respectively.

3. The tractor according to claim 2 ,

wherein the first and second front elastic cylinders ( 130 a , 130 b ) extend upward and downward directions and are coupled to transmission side brackets ( 140 a , 140 b ) formed at one side of the transmission ( 30 ) and fixed to the transmission ( 30 ).

4. The tractor according to claim 2 ,

wherein when one side of the first link ( 121 ) coupled to the transmission ( 30 ) and one side of the second link ( 122 ) coupled to the transmission ( 30 ) pivot upwards, the first and second front elastic cylinders ( 130 a , 130 b ) are compressed to mitigate an upward impact transmitted to the cabin ( 100 ), and

wherein when one side of the first link ( 121 ) coupled to the transmission ( 30 ) and one side of the second link ( 122 ) coupled to the transmission ( 30 ) pivot downwards, the first and second front elastic cylinders ( 130 a , 130 b ) are tensioned to mitigate a downward impact transmitted to the cabin ( 100 ).

5. The tractor according to claim 2 ,

wherein the central link ( 110 ) extends in a lateral direction so that the first link ( 121 ) and the second link ( 122 ) are coupled to both ends thereof, to mitigate shaking in the lateral direction transmitted to the cabin ( 100 ).

6. The tractor according to claim 2 ,

wherein a first transmission front bracket ( 210 a ) coupled to one end of the first link ( 121 ) is installed at one side of the transmission ( 30 ), and a second transmission front bracket ( 210 b ) coupled to one end of the second link ( 122 ) is installed at the other side of the transmission ( 30 ),

wherein a hole is formed at one end of the first link ( 121 ) so that the first transmission front bracket ( 210 a ) is inserted therein and a first damper ( 2101 a ) made of an elastic material is installed at an inner circumference thereof, and

wherein a hole is formed at one end of the second link ( 122 ) so that the second transmission front bracket ( 210 b ) is inserted therein and a second damper ( 2101 b ) made of an elastic material is installed at an inner circumference thereof.

7. The tractor according to claim 2 ,

wherein a hole is formed at the other end of the first link ( 121 ) so that one end of the central link ( 110 ) is perpendicularly inserted therein and a third damper ( 121 a ) made of an elastic material is installed at an inner circumference thereof, and

wherein a hole is formed at the other end of the second link ( 122 ) so that the other end of the central link ( 110 ) is perpendicularly inserted therein and a fourth damper ( 122 a ) made of an elastic material is installed at an inner circumference thereof.

8. The tractor according to claim 2 ,

wherein a first cabin front bracket ( 101 a ) and a second cabin front bracket ( 101 b ) disposed between the first link ( 121 ) and the second link ( 122 ) and coupled to the central link ( 110 ) is installed at the front of the cabin ( 100 ),

wherein a hole is formed in the first cabin front bracket ( 101 a ) so that one side of the central link ( 110 ) is inserted therein and a fifth damper ( 1001 a ) made of an elastic material is installed at an inner circumference thereof, and

wherein a hole is formed in the second cabin front bracket ( 101 b ) so that the other side of the central link ( 110 ) is inserted therein and a sixth damper ( 1001 b ) made of an elastic material is installed at an inner circumference thereof.

9. The tractor according to claim 2 ,

wherein one end of the first and second rear elastic cylinders ( 150 a , 150 b ) is coupled to a cabin rear bracket ( 151 ) formed at the rear of the cabin ( 100 ), and the other end thereof is coupled to a transmission rear bracket ( 220 ) formed at the rear of the transmission ( 30 ).

10. The tractor according to claim 2 ,

wherein protruding links ( 125 , 126 ) extending in a lateral direction are installed at the first link ( 121 ) and the second link ( 122 ), respectively, and

wherein the first and second front elastic cylinders ( 130 a , 130 b ) are installed at the protruding links ( 125 , 126 ).

11. The tractor according to claim 1 ,

wherein a first fixed member ( 160 a ) and a second fixed member ( 160 b ) protruding outwards are installed to the cabin ( 100 ),

wherein a roller ( 161 ) is installed at the first fixed member and the second fixed member, respectively, and

wherein the roller ( 161 ) mitigates vertical and horizontal vibrations by means of guide frames ( 300 , 310 , 320 ) fixed to the transmission ( 30 ).

12. The tractor according to claim 11 ,

wherein the guide frames include a first guide frame ( 300 ) and a second guide frame ( 310 ) installed in parallel with each other.

13. The tractor according to claim 11 ,

wherein the guide frames include a first guide frame ( 300 ) and a second guide frame ( 320 ) installed perpendicular to each other.