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Conditioning apparatus for dirt race tracks

  • US 4,374,546 A
  • Filed: 07/02/1980
  • Issued: 02/22/1983
  • Est. Priority Date: 07/02/1980
  • Status: Expired due to Term
First Claim
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1. A conditioning apparatus for dirt race tracks comprisinga structural frame having a longitudinal axis disposed parallel to the path of movement of the apparatus and including a plurality of elongated tine supporting beams disposed in relatively spaced, transversely extending relationship to the direction of travel of the apparatus in traversing a track,an elongated towing bar extending in forwardly projecting relationship to said frame for coupling of the apparatus to a towing vehicle, said towing bar having one end thereof pivotably connected to said frame for swinging movement in a vertical plane about an axis transverse to the frame'"'"'s longitudinal axis and the other end adapted to mechanically interconnect with a towing vehicle,wheeled support means mounted on said frame for support thereof in traversing movement over a track in predetermined spaced relationship above a surface of the track, said wheeled support means including an elongated roller disposed in transversely extending relationship to the longitudinal axis of said frame, said wheeled support means being pivotably mounted on said frame to permit relative pivoting of said frame about an axis parallel to said elongated roller,a roller mounting structure mechanically coupled between said wheeled support means and said frame and being selectively operable to adjust the vertical position of said frame relative to said wheeled support means,a plurality of upstanding, earth working tines mounted on said frame in a predetermined relative arrangement, each of said beams having a plurality of said earth working tines mounted thereon in relatively spaced relationship, said beams being subdivided into two groups each having a plurality of said beams, said first group being positioned forward of said roller and said second group being positioned rearward of said roller, said earth working tines disposed in laterally offset relationship to each other tine on each other beam with respect to said longitudinal axis and having a tine on each successive beam in a group offset a same predetermined distance with respect to a tine on the next preceding beam, the tines on each group of beams all being offset in a same direction, but in relatively opposite directions as between said first and second groups of beams, each of said tines having a bottom end disposed relative to said frame to project a distance below said frame to penetrate into an upper surface layer of the track to a predetermined depth whereby the penetrating tine portions will be pulled through the track'"'"'s surface layer during traversing movement of the apparatus and thereby form a loose earth cushion surface on the track, andleveling means mechanically coupled between said frame and said towing bar for securing the towing bar in predetermined relationship to said frame to maintain said frame at a selected position relative to a horizontal plane when said towing bar is secured to a towing vehicle, said leveling means selectively operable to enable adjustment of the towing bar to a relative angular position with respect to said frame to position said frame at a desired selected position relative to a horizontal plane for any selected vertical spacing of said frame relative to a track surface.

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