US 12,069,985 B2
Work unit with an auxiliary plate
Tomohisa Yamamoto, Sakai (JP); Tatsuro Tokunaga, Sakai (JP); Ryo Matsumoto, Sakai (JP); Akihito Mihara, Sakai (JP); Ryusuke Kawamoto, Sakai (JP); Terumasa Kobayashi, Sakai (JP); Hiroki Nagai, Sakai (JP); Toshiki Kanai, Sakai (JP); Ryotaro Nakatsu, Sakai (JP); Yuto Akai, Sakai (JP); Seiya Sato, Sakai (JP); and Nobuyuki Yamashita, Sakai (JP)
Assigned to Kubota Corporation, Osaka (JP)
Filed by Kubota Corporation, Osaka (JP)
Filed on Nov. 7, 2019, as Appl. No. 16/677,318.
Claims priority of application No. 2018-229387 (JP), filed on Dec. 6, 2018; application No. 2019-029778 (JP), filed on Feb. 21, 2019; application No. 2019-029779 (JP), filed on Feb. 21, 2019; and application No. 2019-029780 (JP), filed on Feb. 21, 2019.
Prior Publication US 2020/0178461 A1, Jun. 11, 2020
Int. Cl. A01D 34/81 (2006.01); A01D 34/24 (2006.01); A01D 34/66 (2006.01); A01D 101/00 (2006.01)
CPC A01D 34/81 (2013.01) [A01D 34/24 (2013.01); A01D 34/661 (2013.01); A01D 2101/00 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A work unit with at least one auxiliary plate to be attached to a lower side of a work vehicle that includes a wheel, the work unit comprising:
a work portion;
a housing that covers the work portion;
a bridge portion that is provided above the housing;
the at least one auxiliary plate;
a linkage mechanism that is provided in the bridge portion and is connected to the at least one auxiliary plate; and
a lever attached to and configured to operate the linkage mechanism,
wherein the at least one auxiliary plate changes its position between a state of being housed in the bridge portion and a state of protruding from the bridge portion, and
wherein, as a result of rotating the lever, the linkage mechanism is folded or unfolded, and the position of the at least one auxiliary plate is changed between the state of being housed in the bridge portion and the state of protruding from the bridge portion.