초록 ▼

An agricultural implement is disclosed which includes a center section and a plurality of wing sections foldable with respect to each other. A plurality of ground-working tools extend downwardly and rearwardly from the sections of the implement at spaced intervals along the lengths thereof. The wing

An agricultural implement is disclosed which includes a center section and a plurality of wing sections foldable with respect to each other. A plurality of ground-working tools extend downwardly and rearwardly from the sections of the implement at spaced intervals along the lengths thereof. The wing sections are pivotally connected to the center section by a telescoping hinge which prevents the ground-working tools of the respective sections from conflicting with each other when the implement is folded. The telescoping hinge includes a telescoping member, slidably connected to an end of a first associated section and pivotally connected to an end of a second associated section adjacent to the first associated section. A link member limits the distance in spaced relationship between respective points on the first and second sections and biases the telescoping member to simultaneously slide along the first associated section and pivot with respect to the second associated section when the implement is folded thus producing a telescoping action which maintains a spaced relationship between and prevents entanglement of the ground-working tools of the two sections as they are folded.

대표청구항 ▼

A mechanism for horizontally pivotally connecting sections of a foldable agricultural tool bar, said mechanism comprising: (a) a first elongated section having a proximate end and a longitudinal axis, said first section having at least one ground-working tool mounted thereon; (b) a second elongated

A mechanism for horizontally pivotally connecting sections of a foldable agricultural tool bar, said mechanism comprising: (a) a first elongated section having a proximate end and a longitudinal axis, said first section having at least one ground-working tool mounted thereon; (b) a second elongated section having a proximate end associated with the proximate end of said first elongated section and a longitudinal axis, said second section having at least one ground-working tool mounted thereon; (c) a telescoping member having a slide portion and an end portion, said slide portion being slidably engaged with the proximate end of said first section so as to telescope with respect to said first section, said end portion being spaced from said slide portion; (d) hinge means for horizontally pivotally connecting the end of said telescoping member to the proximate end of said second section, said hinge means being in spaced relationship to the proximate end of said first section, whereby said telescoping member is allowed to simultaneously telescope with respect to said first section and pivot horizontally with respect to said second section; (e) said first section and said telescoping member being aligned such that said member telescopes substantially parallel to the longitudinal axis of said first section; and (f) linking means connected to said first and second sections and limiting the telescoping movement of the telescoping member with respect to said first section.