| 摘要 |
A drive motion transmitting assembly is mounted to a mowing implement which also mounts a power drive source having a rotary output drive shaft and a reciprocatory sickle bar. The assembly include a motion converting member, a plurality of idler members, and a drive motion transmitting flexible arrangement. The motion converting member is rotatably mounted about an axis and is drivingly interconnected to the output drive shaft for rotating about the axis upon rotation of the output drive shaft. The motion converting member has a portion spaced from the axis which undergoes orbital movement about the axis as the motion converting member rotates about the axis. The idler members are rotatably mounted both adjacent to and remote from the sickle bar and the motion converting member and in spaced relation to one another for guiding the transmission of drive motion from the motion converting member to the sickle bar. The drive motion transmitting flexible arrangement is entrained about the idler members for undergoing reciprocatory movement relative thereto. The motion transmitting flexible arrangement includes a first portion connected to the orbital portion of the motion converting member and a second portion connected to the sickle bar such that the motion transmitting flexible arrangement reciprocally moves and transmits reciprocatory drive motion to the sickle bar as the motion converting member rotates and applies orbital motion to the motion transmitting flexible arrangement.
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