| 摘要 |
A hand mower includes a base, a housing surrounding the base, a handle coupled to the housing, a cutting cylinder rotatably mounted on the front side of the base, two wheels mounted on the two distal ends of a center shaft of the cutting cylinder, two transmission gear sets, each comprising an internal gear fixedly located on one wheel, a driven gear fixedly mounted on the center shaft of the cutting cylinder and two intermediate gears meshed between the internal gear and the driven gear, and two one-way clutches respectively set between the center shaft of the cutting cylinder and the transmission gear sets for controlling transmission of force between the center shaft and the transmission gear sets.
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