Patent ID: 6511279
Filing Date: 2003-01-28
Classification: A01D,B60P

Abstract:
An automatic fold-up jack for a wheeled implement transporter, said transporter having a main frame movable in a forward direction and said main frame having opposing front and rear ends and a bottom side generally parallel to the ground, said jack comprising:a bracket affixed to said bottom side of said main frame adjacent said front end thereof and extending away therefrom, said bracket having a three-sided channel shape with an open side facing rearwardly; two opposing sides of said bracket having opposing matching notches on the ends thereof most remote from said bottom side of said main frame; an outer tube affixed to said bracket at a pivot point to pivot between a first position where said outer tube is generally parallel to said three-sided channel and a second position where said outer tube is generally perpendicular to said three-sided channel along said bottom side of said main frame; an inner tube having a ground-engaging foot affixed at one end, the other end fitting telescopically into said outer tube; said outer and inner tubes are movably inter-connected such that said inner tube may move telescopically within said outer tube between a minimum position and a maximum position; a first biasing mechanism biasing said outer and inner tubes toward said maximum position; and an over-the-center biasing mechanism biasing said outer tube to either said first or second positions depending upon the position of said outer tube, whereby said outer and inner tubes may be pivoted into said first position for providing support during loading of the implement on the transporter, and will automatically pivot into said second position when forces are applied to it in the forward direction.