LOAD SHIFTABLE GEAR

摘要

Load shiftable gear, particularly for agricultural tractor, in group mounting with a multispeed main gearing (39), a reverse gear (40) and a range group gearing (41) with synchronous shifting couplings (9, 10, 11, 12, 13, 14, 15, 16), with two power branches comprising two additional friction couplings (7 and 8) which are structurally connected to form a double coupling (7, 8) arranged coaxially with respect to the three wheels (17, 18, 19, 20) of the main gearing (39) and axially between said three wheels (17, 18;19, 20).