| 主权项 |
1. A mower for cutting near an obstacle, the mower comprising:
a supporting member having a first leg and a second leg, one end of the first leg and one end of the second leg joined together, the other end of the first leg and the other end of the second leg being adaptable to pivotally connect to a supporting vehicle or tractor, a mower arm having a distal end and a proximal end, the proximal end pivotally connected to the supporting member at approximately where the first and second legs join, a pivotal arm pivotally connected to the distal end of the mower arm, a cutter head connected rotatable to the pivotal arm, the cutter head including a first rotary cutter and a second rotary cutter; and a release mechanism comprising a holding plate located on the pivotal arm and a tension device located on the mower arm and facing the holding plate, the holding plate including at least one hole, the tension device comprising an engagement member that engages the at least one hole in the holding plate to hold the pivotal arm in a first position such that the first rotary cutter is in a leading position relative to the second rotary cutter and when the engagement member disengages the holding plate, the pivotal arm rotates from the first position to a second position where the engagement member engages another one of the at least one hole in the holding plate to hold the pivotal arm in the second position such that the first rotary cutter is in a trailing position relative to the second rotary cutter. |
