초록 ▼

An apparatus for milling road surfaces, the apparatus including an elongated milling roller having hard metal cutters and being adapted to be driven around its central horizontal axis. A pair of end supports extend across opposed ends of the roller normal to the axis thereof, these end supports havi

An apparatus for milling road surfaces, the apparatus including an elongated milling roller having hard metal cutters and being adapted to be driven around its central horizontal axis. A pair of end supports extend across opposed ends of the roller normal to the axis thereof, these end supports having projections which extend forwardly of the roller. A pair of swivel arms are pivotally connected respectively to these projections for swivelling movement about parallel vertical axes, respectively, and a pair of road-engaging wheels are respectively connected with the swivel arms for swivelling movement therewith by way of a structure capable of adjusting the elevation of the wheels as well as capable of adjusting the orientation thereof, the swivel arms providing for the wheels any one of three positions, namely positions in front of the roller, between the projections of the end supports of the roller, positions respectively extending forwardly of the end supports, and positions respectively situated laterally beyond the supports, with the rollers being capable of orientation so that their axes are parallel to the milling roll axis irrespective of the position of the swivel arms. Suitable releasable locks are provided both for locking the swivel arms in the selected positions thereof as well as for locking the rollers in their oriented positions.

대표청구항 ▼

In an apparatus for milling road surfaces, an elongated milling roller provided with hard metal cutters and having a central horizontal axis around which said roller is adapted to be driven, said roller having opposed ends extending across said axis, a pair of end support means respectively situated

In an apparatus for milling road surfaces, an elongated milling roller provided with hard metal cutters and having a central horizontal axis around which said roller is adapted to be driven, said roller having opposed ends extending across said axis, a pair of end support means respectively situated next to said opposed ends of said roller for supporting the latter for rotation about said horizontal axis, said pair of end support means respecTively having projections both of which extend forwardly beyond said roller, a pair of swivel arms respectively connected pivotally to said projections for swivelling movement with respect thereto about parallel vertical axes, respectively, a pair of road-engaging wheels, and adjusting means connecting said wheels respectively to said swivel arms at portions thereof distant from said projections for adjustment in elevation with respect to said swivel arms and for orientation in a direction where the axis of each wheel is parallel to the axis of said roller irrespective of the angular position of each swivel arm with respect to the projection to which it is pivotally connected, said swivel arms cooperating with said projections for situating said wheels in a selected one of three positions, namely positions respectively situated in front of said projections, positions respectively situated between said projections and in front of said roller, and positions respectively situated laterally beyond said projections outside of the space therebetween, and a pair of lock means, one of said lock means cooperating with swivel arms for locking the latter in a selected one of said positions and the other of said lock means cooperating with said adjusting means for locking said wheels in a position oriented with their axes parallel to the axis of said milling roller.