HAYMAKING MACHINE WITH REGULATED AND UNREGULATED RAKING TOOLS

摘要

1. Haymaking machine having at least two raking wheels (1) which rotate in the same or opposite directions and are provided with tine support arms (2), each raking wheel (1) having a fixed curved track (22) which is three-dimensionally twisted and is disposed inwardly - with respect to its axis (5) - said curved track having control rollers (21) engaging therein, which control rollers are disposed on cranks (20) of the tine support arms (2), this position of engagement corresponding to the swathing position from which the tine support arms (2) are transferable to a further position which then corresponds to the tedding position in which the control rollers are guided in a substantially horizontal guide path in such a manner that the support arms, which are possibly orientated inclined upwardly, rotate in a constant-position-manner, characterised in that, in addition to accommodating the first control rollers (21) which are inwardly orientated with respect to the axis (5) of the raking wheel (1), the cranks (20) accommodate two additional control rollers (24) which are outwardly orientated with respect to the axis (5) of the raking wheel (1), and in that the curved track (25), which is disposed outwardly of the curved track (22) opens inwardly with respect to the axis (5) of the raking wheel (1) and is totally disposed in a horizontal position below - or above - the plane of the tine support arms (2) in such a manner that the second control rollers (24) pass into the curved track (25) to convert the tine support arms (2) into their uncontrolled position for tedding purposes.