Double mechanism suspended tongue for towed implements

A shock-absorbing tongue assembly for coupling a rotary cutter with a work vehicle, the assembly comprising:

• a coupler configured to couple to the work vehicle;
• and
• a linkage mechanism having a proximal end at the rotary cutter and a distal end at the coupler, wherein the linkage mechanism further comprises:
• a suspension element configured to dampen energy transferred between the rotary cutter and the work vehicle;
• a primary linkage mechanism extending from the rotary cutter and including a first upper link and a first lower link each extending from the proximal end in a direction away from the rotary cutter, the first upper link connected with the rotary cutter at an upper connection and the first lower link connected with the rotary cutter a lower connection, the upper and lower connections spaced apart on the rotary cutter;
• and
• a secondary linkage mechanism extending between the primary linkage mechanism and the coupler and including a second upper link connected with the first upper link, and a second lower link connected with the first lower link.

A shock-absorbing tongue assembly for coupling a rotary cutter with a work vehicle, the assembly comprising:

• a coupler configured to couple to the work vehicle and configured as a first vertical link;
• a mount on the rotary cutter with upper and lower connections configured to connect the assembly with the rotary cutter;
• and
• a linkage mechanism having a proximal end connected with the rotary cutter at the upper and lower connections and having a distal end connected with the coupler, wherein the linkage mechanism further comprises:
• a suspension element configured to dampen energy transferred between the rotary cutter and the work vehicle;
• a primary linkage mechanism including a first upper link and a first lower link, the first upper link connected with the rotary cutter at the upper connection and the first lower link connected with the rotary cutter at the lower connection, the first upper link and the first lower link spaced apart by being connected with the mount, the mount configured as a second vertical link;
• and
• a secondary linkage mechanism connected with the primary linkage mechanism and with the coupler, the secondary linkage mechanism including a second upper link and a second lower link, the second upper link comprises;
• a first upper pivot connecting the first and second upper links;
• a first lower pivot connecting the first and second lower links;
• and
• a spacing link connected between the first upper pivot and the first lower pivot, the spacing link configured as a third vertical link;
• wherein the coupler is configured to move vertically relative to the mount by operation of the linkage mechanism.