Patent ID: 8444362
Filing Date: 2013-05-21
Classification: A01D

Abstract:
1. A round bale mover for attachment to a vertically movable structure mounted on a tractor, with the tractor having forward and rearward ends, comprising: an elongated transversely and horizontally extending main frame having first and second ends; an upstanding attachment frame means secured to said main frame between the ends thereof adapted to be operatively selectively secured to the front-end loader; first and second upstanding posts having upper and lower ends, a first side, a second side, an inner side and an outer side; said lower end of said first post being secured to said first end of said main frame; said lower end of said second post being secured to said second end of said main frame; first and second tubular supports vertically slidably mounted on said first and second posts respectively which have a first side, a second side and inner and outer sides; said first and second tubular supports being movable between upper and lower positions with respect to said first and second posts respectively; a first generally horizontally disposed support frame secured to said first tubular support above said lower end thereof and which has an inner end positioned inwardly of said inner side of said first tubular support and an outer end positioned outwardly of said outer side of said first tubular support; an elongated first link having upper and lower ends; said upper end of said first link being pivotally secured, about a horizontal axis to said outer end of said first support frame; an elongated second link having upper and lower ends; said upper end of said second link being pivotally secured, about a horizontal axis, to said inner end of said first support frame; an elongated first linkage member having inner and outer ends; said outer end of said first linkage, member being pivotally secured, about a horizontal axis, to said lower end of said first link; said inner end of said first linkage member being pivotally secured, about a horizontal axis, to said lower end of said second link; a first elongated bale tooth operatively secured to said first link which extends horizontally therefrom; a second elongated bale tooth operatively secured to said second link which extends horizontally therefrom; as first hydraulic cylinder having a base end and a rod end; said first hydraulic cylinder being movable between retracted and extended positions; said base end of said first hydraulic cylinder being pivotally secured to said first tubular support above said first support frame; said rod end of said first hydraulic cylinder being pivotally secured to said first link; the retraction of said first hydraulic cylinder causing said first and second bale teeth to be moved laterally outwardly with respect, to said main frame; the extension of said first hydraulic cylinder causing said first and second hate teeth to be moved late-rally inwardly with respect to said main frame; a second generally horizontally disposed support frame secured to said second tubular support above said lower end thereof and which has an inner end positioned inwardly of said inner side of said second tubular support and an outer end positioned outwardly of said outer side of said second tubular support; a third link having upper and lower ends; said upper end of said third link being pivotally secured, about a horizontal axis, to said inner end of said second support frame; a fourth link having upper and lower ends; said upper end of said fourth link being pivotally secured, about a horizontal axis, to said outer end of said second support frame; an elongated second linkage member having inner and outer ends; said outer end of said second linkage member being pivotally secured, about a horizontal axis, to said lower end of said fourth link; said inner end of said second linkage member being pivotally secured, about a horizontal axis, to said lower end of said third link; a third elongated bale tooth operatively secured to said third link which extends horizontally therefrom; a fourth elongated bale tooth operatively secured to said fourth link which extends horizontally therefrom; a second hydraulic cylinder having a base end and a rod end; said second hydraulic cylinder being movable between retracted and extended positions; said base end of said second hydraulic cylinder being pivotally secured to said second tubular support above said second support frame; said rod end of said second hydraulic cylinder being pivotally secured to said fourth link; the retraction of said second hydraulic cylinder causing said third and fourth bale teeth to be moved laterally outwardly with respect to said main frame; the extension of said second hydraulic cylinder causing said third and fourth bale teeth to be moved laterally inwardly with respect to said main frame; first and second elongated tether members hay no upper and lower ends; said upper end of said first tether member being secured to said first post adjacent the upper end thereof; said lower end of said first tether member being secured to said first tubular support to limit the downward movement of said first tubular support with respect to said first post; said upper end of said second tether member being secured to said second post adjacent the upper end thereof; said lower end of said second tether member being secured to said second tubular support to limit the downward movement of said second tubular support with respect to said second post; the effective length of one of said tether members being longer than the effective length of the other tether member so that the tubular support connected to the shorter tether member will be positioned in a plane above the other tubular support so that the bale teeth secured to that tubular support will be in a plane above the bale teeth secured to the other tubular support.