| 摘要 |
A hedger includes a raisable platform, a telescoping main boom member pivotably attached at one end to the platform, and at least a first boom member pivotably attached to and extending in a first direction from an opposite end of the main boom member. The first boom member rotatably supports at least one cutting blade. A second boom member is pivotably attached to an end portion of the first boom member and extends in a second direction from the opposite end of the main boom member. The second boom member also rotatably supports at least one cutting blade. The first and second boom members of the hedger are pivotable relative to each other and relative to the main boom member. As a result, the structure of the invention enables multiple cutting blade configurations or profiles. Moreover, the platform includes structure enabling the main boom member to achieve a substantially horizontal attitude. A pivot linkage connected between the first boom member and the second boom member enables the second boom member to pivot through 180.degree. relative to the first boom member. A blade coupling unit is also provided, securing the cutting blades in a triple locking arrangement.
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