| 摘要 |
A measuring roller system for a tree processing machine having a measuring roller and roller mounting means for mounting the roller on the frame of the machine for swinging movement toward or away from the frame. The roller is rotatably mounted on the roller mounting means for rotation caused by axial movement of a tree past the roller while in contact with the roller and while being processed by the machine. A sensor is positioned to measure the amount of rotation of the roller to provide a measure of length of tree fed axially past the roller. The roller system has sensor moving means to rotate the sensor in unison with the roller when the roller is rotated by transaxial movement of the tree during axial movement.
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