Tipper vehicles

Claim 1

In an improved tipper vehicle of the bale-wagon type comprising a trailer body which tips about a frist transverse axis between a transport position in which the base of said body lies at an angle to the horizontal and a tipped position in which the base of the body lies in a vertical plane, and actuator means connected to cause tipping and return movement of the body between its two positions, the improvement according to which said body is supported by a rigid sub-frame positioned thErebeneath when said body is in said transport position, said sub-frame being pivotally connected to the body about a second transverse axis, said actuator means is directly connected between said body and said sub-frame, and the relative positions of said transverse axes and the points of connection of said actuator means are so determined that when said actuator acts to tip the body about said first transverse axis from said transport position to said tipped position a. said second transverse axis moves in a circular arc about said first transverse axis, which are subtends at said first transverse axis an angle complementary to the forward and upward inclination of said base of said body relative to the horizontal in said transport position, and b. there is relative approach movement between said first transverse axis and the end of said sub-frame remote from said second transverse axis.