| 摘要 |
Grain stirring apparatus includes a stirrer and a stirrer drive motor which are supported on a carrier which is reciprocably movable along a rotatable shaft, the shaft being supported on a carriage for movement in a direction transverse to the movement of the carrier along the shaft. A roller frictionally engages the shaft and is supported on a support member which is supported on the carrier for shiftable pivotal movement about a fixed shift axis between two positions, for effecting reciprocable rectilinear movement of the stirrer carrier along the shaft. The roller support member includes a gear which is meshed with a pair of gears which are journalled on the carrier for rotation about axes in fixed relation to the carrier and which carry members for engagement with members which project from the shaft, to shift the support member from one position to the other. |
