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A folding tool bar implement converts from a transversely extending operating configuration to a longitudinally extending transport configuration. The implement includes a rotating rockshaft supported by a wheel assembly at each opposing end thereof. The wheel assembly is formed as a walking beam as

A folding tool bar implement converts from a transversely extending operating configuration to a longitudinally extending transport configuration. The implement includes a rotating rockshaft supported by a wheel assembly at each opposing end thereof. The wheel assembly is formed as a walking beam assembly having an L-shaped member defining perpendicular axes of movement for the wheel assembly. A castering axis is oriented vertically to permit a castering action of the wheel assembly when the rockshaft is rotated into a working configuration. The rotation of the rockshaft re-positions the castering axis to a horizontal orientation when rotated into a transport configuration. A caster lock moves by gravity to lock the wheel assembly from moving about the castering axis when the rockshaft is in the transport configuration. The caster lock includes a latch mounted to the wheel assembly and a pivoted latch tongue mounted on the L-shaped member.

대표청구항 ▼

1. An agricultural tool bar implement comprising:a draft frame adapted for connection to a prime mover; a rockshaft pivotally mounted on the draft frame for movement between a first position corresponding to a field operating position and a second position corresponding to a transport position; a gr

1. An agricultural tool bar implement comprising:a draft frame adapted for connection to a prime mover; a rockshaft pivotally mounted on the draft frame for movement between a first position corresponding to a field operating position and a second position corresponding to a transport position; a ground engaging wheel assembly supporting said rockshaft, said wheel assembly including: an L-shaped member connected to said rockshaft, said L-shaped member having a first leg extending generally horizontally when said rockshaft is in said first position and extending generally vertically when said rockshaft is rotated into said second position and a second leg extending orthogonally to said first leg; and a wheel rotatably mounted on a wheel support connected to said second leg, said wheel support being rotatable about a castering axis aligned with said second leg; and a caster lock operably interconnecting said wheel support and said second leg to restrict the rotation of said wheel support relative to said second leg when said rockshaft rotates into said second position.