| 摘要 |
<p>The invention concerned relates to a control unit for cutter bars in general which comprises, in cascade and/or connected together inside an oil bath casing, from the opposite ends of which there emerge a rotatable shaft for coupling to a normal power take-off and a reciprocating lever for coupling to the saw of a cutter bar, a step-up unit for the rotary inlet motion, a sliding surface device for converting the rotary motion into multi-directional reciprocating motion, and a spider for converting this latter motion into unidirectional reciprocating motion for the reciprocating lever, this latter being rigid with said spider, there being finally provided upstream of the step-up unit means for adjusting the contact between said sliding surfaces.</p> |
