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Prime mover actuated concrete curb extruder

  • US 5,173,005 A
  • Filed: 05/31/1991
  • Issued: 12/22/1992
  • Est. Priority Date: 05/31/1991
  • Status: Expired due to Term
First Claim
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1. A continuous concrete street curb extruding apparatus, comprising:

  • a prime mover having hydraulically actuated controls operated by an onboard hydraulic system and having implement connecting forwarding disposed hitch means;

    concrete hopper means having upper and lower inlet and outlet openings for receiving and depositing, by gravity flow, a quantity of wet concrete mixture in a pliable state on the surface of a roadbed;

    primary frame means connecting said hopper means with said hitch means for movement in a path laterally of the path of travel of said prime mover;

    curb forming channel means operatively connected with said hopper means adjacent its outlet opening for forming a curb shaped surface on the concrete deposited on the surface of the roadbed in response to forward movement of said prime mover;

    direction sensing means supported by said hopper means and responsive to the position of a horizontal tautly stretched strand defining a predetermined path of travel and operatively connected with said hydraulic system for guiding said prime mover and said hopper means along the predetermined travel path;

    elevating frame means interposed between said hopper means and said primary frame means for maintaining said hopper means and said curb forming means in close spaced relation with respect to the surface of the roadbed, said elevating frame means comprising;

    a pair of upstanding channel members pivotally connected at their depending end portions with said primary frame means for vertical pivoting movement about a horizontal axis;

    sliding frame members supported by said channel members for vertical movement of said sliding frame members relative to said channel members;

    plate means for connecting said hopper means with said sliding frame members;

    pressure cylinder means disposed between and connected with said sliding frame members for raising and lowering said hopper means relative to said channel members; and

    ,I-bolt means interposed between said channel members and said primary frame means for positioning said channel members at a predetermined angle with respect to the top surface of the primary frame means.

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