Multiple section farm implement with adjustable latch arrangement

In a multiple section farm implement having a main frame and a wing frame which is rearwardly foldable from an operating configuration to a transporting configuration and vice versa, said wing frame being adapted for mounting of soil conditioning members thereon and having elongated, flexible reinforcing members attached thereto which extend to said main frame, the improvement comprising:

• swinging arm members which are pivotally attached near their inner ends to the main frame and are pivotable forwards and backwards with respect thereto when said wing frame is folded, respecively, to an operating and a transporting configuration, one end of each of said reinforcing members being attached near the outer ends of one of said arm members,
• b. latching means associated with said main frame whereby said arm members are latched with said reinforcing member one ends adjacent said main frame when said wing frame is in an operating configuration and whereby the arm members are unlatched for pivoting said reinforcing member one ends outwardly of said main frame during the folding of said wing frame to transporting configuration,
• c. a lifting tower on said main frame for pivoting the wing frame, said lifting tower including a lever pivotally attached at one end to the main frame, an interconnecting link which is pivotally attached to said lever toward the outer end thereof, said link extending downwardly from said lever and being pivotally attached at its rear end to the wing frame, and
• d. an actuator rod pivotally attached at one end to said lever and in operational engagement with said latching means at the other end, the latching means being pivotal back and forth by said rod for unlatching said arm members upon pivoting the wing frame from an operating configuration to an intermediate configuration, and for latching said arm membes when said wing frame is folded to an operating configuration,
• e. said latching means having means forming a passageway through which said rod extends and through which said rod is longitudinally reciprocable, a latching end and an unlatching engagement member mounted on said rod respectively on each side of said passageway and being adjustable in position along said rod the distance through which said rod is longitudinally reciprocable being determined by the distance on said rod between said engagement members, whereby said wing frame may be raised from contact with the ground without unlatching of said arm members and then upon further raising of said wing frame, said unlatching engagement member will engage said latching means to unlatch said swinging arms.