| 摘要 |
A mower conditioner having a pair of hay conditioning rollers. A pair of levers mounting the upper roller intermediate their end, having forward ends pivoted coaxially to the sides of a harvesting unit vertically, swingably mounted from a ground supported frame, and links pivoted coaxially at their upper forward ends to the rear ends of the levers and having lost-motion connections at their rear ends to the stationary framework supporting the unit, the links functioning as compression members beyond the extent of lost-motion and operative to swing the roller mounting levers upwardly attendant to the harvesting unit being pivoted upwardly beyond a predetermined elevation.
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