| 摘要 |
A top dresser ( 10 ) includes sheeting ( 70 ) in the form of an endless belt passing around first and second drums ( 148, 160 ) and a bed ( 166 ) including a plurality of rollers ( 106 ). Continuous V-shaped guides ( 122 ) are received in pulleys ( 120 ) on the drums ( 148, 160 ) for tracking the endless belt. A blocking device ( 112 ) in the form of a rod is slid in the mid-frame ( 102 ) to prevent the shafts ( 108 ) of the rollers ( 106 ) from axially sliding against their bias from their operative positions to their installation positions. Ledges ( 116 ) having friction reducing strips ( 118 ) extend over the shafts ( 108 ) of the rollers ( 106 ). A compound gear ( 180 ) in gearing relation with the second drum ( 160 ) and in driving relation with a spindle ( 82 ) of a brush ( 74 ) is rotatably mounted to an arm ( 174 ) pivotally mounted to the second drum ( 160 ). The spindle ( 82 ) includes two portions ( 82 a, 82 b) removably connected by a coupler ( 76 ), with the first portion ( 82 a) being cantilevered supported from the side frame ( 100 ).
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