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Hoe-opener assembly

  • US 4,750,440 A
  • Filed: 10/27/1986
  • Issued: 06/14/1988
  • Est. Priority Date: 10/27/1986
  • Status: Expired due to Fees
First Claim
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1. A hoe-opener assembly configured to be drawn behind an agricultural implement having a tool bar, comprising:

  • a framework extending rearwardly of said tool bar;

    parallelogram linkage means operatively connecting said framework to said tool bar and providing a movable connection therebetween, for allowing the framework to be raised and lowered relative to the ground while said framework is maintained in substantially parallel relation to the ground;

    frame biasing means operatively connected to and extending between said tool bar and said framework for biasing the movement of said framework provided by said parallelogram linkage means relative to said tool bar;

    a plurality of hoe-openers mounted on said framework in spaced-apart relation to each other for forming a corresponding plurality of spaced-apart furrows, each one of said plural hoe-openers including means pivotally connecting said one hoe-opener to said framework, with associated biasing-spring means provided configured to oppose substantial pivotal movement of said one hoe-opener relative to said framework, the biasing-spring means substantially fixing its associated hoe-opener against independent movement relative to said framework;

    ground-contacting wheeled means for spacing the framework a preselected distance above the ground; and

    jackscrew means adjustably connected to said framework and to said ground-contacting wheeled means for adjusting the depth of penetration of said plural hoe-openers into the ground.

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