Patent ID: 7874224

Claim:
A transmission for a tractor comprising: an input shaft ( 100 ) receiving power from an engine; an idle shaft ( 200 ) disposed parallel with the input shaft ( 100 ); an output shaft ( 300 ) disposed parallel with the idle shaft ( 200 ) and transmitting power to a main transmission part; forward/reverse driving gears ( 110 and 120 ) installed on the input shaft ( 100 ) so as to rotate idle; a forward/reverse clutch ( 501 ) installed between the forward driving gear ( 110 ) and the reverse driving gear ( 120 ) to selectively connect the forward driving gear ( 110 ) or the reverse driving gear ( 120 ) to the input shaft ( 100 ); a forward driven gear ( 210 ) installed on the idle shaft ( 200 ) and engaged with the forward driving gear ( 110 ); a reverse driven gear ( 220 ) installed on the idle shaft ( 200 ) and engaged with the reverse driving gear ( 120 ); high speed/low speed driving gears ( 230 and 240 ) installed between the forward driven gear ( 210 ) and the reverse driven gear ( 220 ) so as to rotate idle; a high speed/low speed clutch ( 502 ) installed between the high speed driving gear ( 230 ) and the low speed driving gear ( 240 ) to selectively connect the high speed driving gear ( 230 ) or the low speed driving gear ( 240 ) to the idle shaft ( 200 ); and high speed/low speed driven gears ( 310 and 320 ) installed on the output shaft ( 300 ) and engaged with the high speed driving gear ( 230 ) and the low speed driving gear ( 240 ), respectively.