Large hay rake machine

摘要

The large agricultural machine, for raking mown hay into swaths, is a tractor-drawn trailer (2) with four circular rakes rotating on vertical axes. Two circular rakes (22,24) are on a sub-frame (3) coupled to the tractor, riding on support wheels (5,6). Two further circular rakes (23,25) are on a second sub-frame (40, coupled to the first (3), riding on support wheels (7,8). The carrier arms are pivoted to swing upwards. Both sub-frames (3,4) may have wheels (5-8) which are steered by steering rods. The first sub-frame (3) may be coupled to the tractor by a push/pull rod (16), and a second push/pull rod (17) can connect the second sub-frame (4) to the first (3).