Road surfacing machine vibrating board arm - has two-arm lever joined to connecting rod, and linked to pivot connected to raking plate

摘要

The vibrating board is fastened to a pull arm attached to the road-surfacing machine. It is adjustable for slope by a level adjusting device, and has a preceding raking plate. The machine end of the arm (1) is attached to the level adjusting device (10) on the machine. A two arm lever (2), swivelling on the arm, has one end (6) supported on the machine and its other end joined to a connecting rod (11). A strap (13) in a pivot (8) at the board end of the arm has two hinge points. One (14) is for the connecting rod attachment and the other one (15) for attachment of another rod, in turn connected to the raking plate (3).