Patent ID: 11930727
Assignee: nan
Field: Other special machines (Mechanical engineering)
Classification: CPC A | IPC A

Claim 3:
4. In combination:
a horizontally disposed and vertically movable tool bar having a first end, a second end, an upper side, a lower side, a forward side and a rearward side;
a plurality of horizontally spaced-apart cultivator row units secured to said tool bar;
each of said horizontally spaced-apart cultivator row units comprising:
(a) a support clamp selectively longitudinally clamped onto said tool bar with said support clamp having an upper end, a lower end, a forward end and a rearward end;
(b) first and second horizontally spaced-apart parallel arms having forward and rearward ends;
(c) said forward ends of said first and second horizontally spaced-apart parallel arms being pivotally secured, about a horizontal axis, to said rearward end of said clamp at said upper end thereof;
(d) a first hydraulic cylinder having a base end and a rod end;
(e) said base end of said first hydraulic cylinder being pivotally secured, about a horizontal axis, to said rearward end of said clamp at said lower end thereof;
(f) a vertically disposed first support including horizontally spaced-apart first and second support members which have an upper end, a lower end, a forward end, a rearward end, an inner side and an outer side;
(g) said rearward end of said first parallel arm being pivotally secured, about a horizontal axis, to said forward end of said first support member at said upper end of said first support member;
(h) said rearward end of said second parallel arm being pivotally secured, about a horizontal axis, to said forward end of said second support member at said upper end of said second support member;
(i) said rod end of said first hydraulic cylinder being pivotally secured, about a horizontal axis, to said forward ends of said first and second support members at said lower ends of said first and second support members;
(j) the extension of said first hydraulic cylinder causing said vertically disposed first support to move upwardly with respect to said tool bar;
(k) the retraction of said first hydraulic cylinder causing said vertically disposed first support to move downwardly with respect to said tool bar;
(l) a pair of selectively vertically movable gauge wheels operatively secured to said first support;
(m) each of said gauge wheels being selectively horizontally movable with respect to said first support;
(n) an elongated and horizontally disposed second support having a forward end, a rearward end, a first side, a second side, an upper side and a lower side;
(o) said second support extending rearwardly from said first support;
(p) a first plate welded to the second tube with said first plate having a forward end, a rearward end, a first side and a second side;
(q) a first pair of vertically spaced-apart parallel arms having an inner end and an outer end;
(r) said inner end of said first pair of vertically spaced-apart parallel arms being pivotally secured, about a vertical axis, to said first side of said first plate whereby said first pair of vertically spaced-apart parallel arms extend outwardly and rearwardly from said first side of said first plate;
(s) a second pair of vertically spaced-apart parallel arms having an inner end and an outer end;
(t) said inner end of said second pair of vertically spaced-apart parallel arms being pivotally secured, about a vertical axis, to said second side of said first plate whereby said second pair of vertically spaced-apart parallel arms extend outwardly and rearwardly from said second side of said first plate;
(u) a third support secured to said lower side of said elongated and horizontally disposed second support and which extends downwardly from said elongated and horizontally disposed second support;
(v) said third support having an upper end, a lower end, a first side, a second side, a forward end and a rearward end;
(w) said third support having a horizontally disposed square opening formed therein which extends therethrough from said forward end of said third support to said rearward end of said third support;
(x) a second plate secured to said lower end of said third support and which has a forward end, a rearward end, a first side and a second side;
(y) a third pair of vertically spaced-apart parallel arms having an inner end and an outer end;
(z) said inner end of said third pair of vertically spaced-apart parallel arms being pivotally secured, about a vertical axis, to said second plate;
(aa) said third pair of vertically spaced-apart parallel arms being parallel to said first pair of vertically spaced-apart parallel arms;
(bb) a fourth pair of vertically spaced-apart parallel arms having an inner end and an outer end;
(cc) said inner end of said fourth pair of vertically spaced-apart parallel arms being pivotally secured, about a vertical axis, to said second plate whereby said fourth pair of vertically spaced-apart parallel arms extend outwardly and rearwardly from said second side of said second plate;
(dd) said fourth pair of vertically spaced-apart parallel arms being parallel to said second pair of vertically spaced-apart parallel arms;
(ee) an elongated and vertically disposed first mounting plate having a forward end, a rearward end, an upper end, a lower end, an inner side and an outer side;
(ff) said outer end of said first pair of vertically spaced-apart parallel arms being pivotally secured, about a vertical axis, to said inner side of said first mounting plate at said forward end of said first mounting plate;
(gg) said outer end of said third pair of vertically spaced-apart parallel arms being pivotally secured, about a vertical axis, to said inner side of said first mounting plate at said rearward end of said first mounting plate;
(hh) an elongated and vertically disposed second mounting plate having a forward end, a rearward end, an upper end, a lower end, an inner side and an outer side;
(ii) said outer end of said second pair of vertically spaced-apart parallel arms being pivotally secured, about a vertical axis, to said inner side of said second mounting plate at said forward end of said second mounting plate;
(jj) said outer end of said fourth pair of vertically spaced-apart parallel arms being pivotally secured, about a vertical axis, to said second mounting plate at said rearward end of said second mounting plate;
(kk) an elongated and horizontally disposed connector tube, having forward and rearward ends, slidably positioned in said square opening of said third support;
(ll) a horizontally disposed and elongated first link arm having inner and outer ends;
(mm) said inner end of said first link arm being pivotally secured, about a vertical axis, to said connector tube at said forward end of said connector tube;
(nn) said first link arm extending outwardly and forwardly from said connector tube;
(oo) said outer end of said first link arm being pivotally secured, about a vertical axis, to said first mounting plate between said forward and rearward ends of said first mounting plate;
(pp) a horizontally disposed and elongated second link arm having inner and outer ends;
(qq) said inner end of said second link arm being pivotally secured, about a vertical axis, to said connector tube at said forward end of said connector tube;
(rr) said second link arm extending outwardly and forwardly from said connector tube;
(ss) said outer end of said second link arm being pivotally secured, about a vertical axis, to said second mounting plate between said forward and rearward ends of said second mounting plate;
(tt) a horizontally disposed power cylinder having a base end and a rod end with said power cylinder being movable between extended and retracted positions;
(uu) said base end of said power cylinder being fixed to said second support;
(vv) said rod end of said power cylinder being secured to said forward end of said connector tube whereby the extension of said rod end thereof causes said connector tube to slidably move rearwardly with respect to said third support and whereby the retraction of said power cylinder causes said connector tube to slidably move forwardly with respect to said third support;
(ww) at least one ground engaging cultivator tool secured to said first mounting plate for movement therewith; and
(xx) at least one ground engaging cultivator tool secured to said second mounting plate for movement therewith.