Vibratory roller with axially spaced zig zag impact bars and wire rope cleaners

Abstract

A vibratory roller is journalled from a frame portion of a vehicle of the compaction-type an the roller includes a generally cylindrical outer face. A plurality of circumferentially extending lug bands are carried by the roller outer surface and are disposed in laterally spaced zones of the outer face spaced longitudinally of the roller and in which diametric planes of the roller lie. The lug bands are comprised of lugs including outer surfaces disposed at least substantially normal to intersecting radii of the roller and generated about the axis of rotation of the roller. The outer surfaces are at least substantially circumferentially continuous about the roller and extend in zig zag paths contained in the aforementioned zones. The lateral spacing between adjacent zones defines circumferentially continuous paths of the outer roller face which are free of the lug bands and scraper members are carried by the frame portion and disposed in at least closely spaced relation to the face of scraping accumulated debris from the aforementioned paths. The lugs are generally hexagonal in transverse cross section and are welded to the outer face of the roller with the welding operation being performed to create fillets on opposite sides of the lugs forming downward and outward inclined continuations of the inclined side surfaces of the lugs intersecting the outer surfaces thereof.

What is claimed as new is as follows: 
     
       1. In combination with a vibratory roller journalled from a frame portion of a vehicle of the compaction-type, said roller including a generally cylindrical outer face, a plurality of circumferentially extending lug bands carried by the outer face of said roller, said lug bands being disposed in laterally spaced zones of said outer face spaced longitudinally of said roller and in which diametric planes of said roller lie, said lug bands being comprised of lugs including outer surfaces disposed at least substantially normal to intersecting radii of said roller and generated about the axis of rotation of said roller, said outer surfaces being at least substantially circumferentially continuous about said roller and extending in zig-zag paths contained in said zones, the lateral spacing between said zones defining circumferentially continuous paths of said outer face free of said lug bands, scraper members carried by said frame portion and disposed in at least closely spaced relation relative to said face, said scraper members being operative to scrape accumulated debris from said paths as said roller is rotated relative to said frame portion, said lugs including opposite side surfaces divergent from said outer surfaces toward said outer face, said lugs being generally hexagonal in transverse cross section and welded to said outer face with the welding operation being performed to create fillets on opposite sides of said lugs forming inward continuations of said inclined side surfaces. 
     
     
       2. The roller of claim 1 wherein said scraper members comprise short twisted multi-strand wire rope members disposed generally radially of said roller. 
     
     
       3. The roller of claim 1 wherein said lugs in each band comprise individual lug members spaced about said face with alternate lug members inclined generally 90° relative to each other and oppositely generally 45° relative to the corresponding diametric plane of said roller. 
     
     
       4. In combination with a vibratory roller journalled from a frame portion of a vehicle of the compaction-type, said roller including a generally cylindrical outer face, a plurality of circumferentially extending lug bands carried by the outer face of said roller, said lug bands being disposed in laterally spaced zones of said outer face spaced longitudinally of said roller and in which diametric planes of said roller lie, said lug bands being comprises of lugs including outer surfaces disposed at least substantially normal to intersecting radii of said roller and generated about the axis of rotation of said roller, said outer surfaces being at least substantially circumferentially continuous about said roller and extending in zig-zag paths contained in said zones, the lateral spacing between said zones defining circumferentially continuous paths of said outer face free of said lug bands, scraper members carried by said frame portion and disposed in at least closely spaced relation relative to said face, said scraper members being operative to scrape accumulated debris from said paths as said roller is rotated relative to said frame portion, said scraper member comprising short twisted multi-strand wire rope members disposed generally radially of said roller, said lugs including opposite side surfaces divergent from said outer surfaces toward said outer face, said side surfaces being inclined generally 60° relative to said outer surfaces, said lugs being hexagonal in transverse cross section and welded to said outer face with the welding operation being performed to create fillets on opposite sides of said lugs forming inward continuations of said inclined side surfaces. 
     
     
       5. The roller of claim 4 wherein said lugs in each band comprise individual lug members spaced about said face with alternate lug members inclined generally 90° relative to each other and oppositely generally 45° relative to the corresponding diametric plane of said roller. .Iadd. 
     
     
       6.  An apparatus suitable for use with a compaction vehicle of the type employed to compact the surface of a roadbed, the compaction vehicle including a frame portion with a journal structure adapted to receive a compaction roller, said apparatus comprising: a roller attachable to the journal structure of the compacting vehicle frame portion, said roller acting to roll over the surface of the roadbed when the compaction vehicle is in operation;   means for vibrating said roller;   a cylindrical outer face structure disposed around said roller; and   a plurality of lug bands positioned on said cylindrical outer face structure to contact the roadbed surface as said roller rolls along the roadbed during operation of the compaction vehicle, each said lug band exhibiting an outer surface disposed over a circumferential zone on said outer face structure and separated from the outer surfaces of adjacent lug bands by distances which, at preselected points along said lug band, are greater than the distance across said outer surface, said outer surfaces of said plurality of lug bands operating simultaneously to contact the roadbed surface over a collective contact area of substantially less dimension than the entire area across aid outer face structure, each said lug band further following along a path which alternates back and forth in substantially continuous fashion around said circumferential zone to promote breakage of rocks and solids and floating of fines in the roadbed in response to the transmission of vibrational forces from the roller through said collective contact area to the roadbed. .Iaddend. .Iadd.   
     
     
       7.  Apparatus as set forth in claim 6, wherein each said lug band is shaped such that said outer surface of said lug band follows a substantially continuous zig-zag pattern about the circumference of said roller. .Iaddend. .Iadd.8. Apparatus as set forth in claim 7, wherein each said lug band is comprised of individual lug members circumferentially spaced about said outer face structure with alternate lug members inclined at substantially 90° relative to each other and substantially 45° relative to the corresponding diametric plane of said roller. 
     
     
        .Iaddend. .Iadd.9.  A method for breaking up surface rocks and solids in a roadbed during compacting and for distributing the resulting fines at the top surface of the roadbed, said method comprising the steps of applying vibratory force to a predetermined area of the roadbed surface in continuous fashion along a plurality of path each of which alternates back and forth in substantially continuous fashion within a predetermined zone of said predetermined area, the distance across each of said paths being substantially less than the distance between each of said paths such that the combined surface area of the plurality of alternating paths is less than said predetermined area of the roadbed surface. .Iaddend. .Iadd.10. Apparatus for use with a vibrating roller employed to compact the surface of a roadbed, said apparatus comprising: a cylindrical outer face structure disposed around said roller; and,   a plurality of lug bands positioned on said cylindrical outer face structure to contact the roadbed surface as said roller rolls along the roadbed during operation of the compaction vehicle, each said lug band exhibiting an outer surface disposed over a circumferential zone on said outer face structure and separated from the outer surfaces of adjacent lug bands by distances which, at preselected points along said lug band, are greater than the distance across said outer surface, said outer surfaces of said plurality of lug bands operating simultaneously to contact the roadbed surface over a collective contact area of substantially less dimension than the entire area across said outer face structure, each said lug band further following along a path which alternates back and forth in substantially continuous fashion around said circumferential zone to promote breakage of rocks and solids and floating of fines in the roadbed in response to the transmission of vibrational forces from the roller through said collective contact area to the roadbed.