US 11,994,201 B2
Power transmission device for work vehicle
Tomonari Tsuchida, Osaka (JP); Atsuro Hayami, Osaka (JP); Hiroyuki Sadamoto, Osaka (JP); Keitaro Morinaga, Osaka (JP); Kazuhiro Wada, Osaka (JP); Rikuto Araki, Osaka (JP); Ryoma Iwase, Osaka (JP); Tomoyuki Tanaka, Osaka (JP); Takahiro Matsuo, Osaka (JP); and Hiroyuki Aikawa, Osaka (JP)
Assigned to KUBOTA CORPORATION, Osaka (JP)
Filed by KUBOTA CORPORATION, Osaka (JP)
Filed on Nov. 12, 2021, as Appl. No. 17/525,262.
Claims priority of application No. 2020-218795 (JP), filed on Dec. 28, 2020; and application No. 2021-099698 (JP), filed on Jun. 15, 2021.
Prior Publication US 2022/0205526 A1, Jun. 30, 2022
Int. Cl. F16H 57/02 (2012.01); F16H 57/021 (2012.01); F16H 57/04 (2010.01)
CPC F16H 57/021 (2013.01) [F16H 57/0409 (2013.01); F16H 57/0423 (2013.01); F16H 57/0457 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A power transmission device for a work vehicle, comprising:
a transmission case;
a gear transmission housed in the transmission case and configured to transmit power to a travel device; and
a transmission gear provided in the gear transmission in a state of sitting in lubricating oil stored in an internal space of the transmission case,
wherein the transmission case is provided with a wall supporting a support shaft of the transmission gear while being adjacent to the transmission gear,
the wall is provided with a cover protruding from the wall toward an outer periphery of the transmission gear and covering the transmission gear such that the cover inhibits the spreading of lubricating oil, when agitated, to the lubricating oil stored in other regions of the internal space of the transmission case,
the cover is provided below the transmission gear in a state of sitting in the lubricating oil stored in the internal space of the transmission case, and
the wall is a separate member from the transmission case, such that the wall is removably coupled to the inside of the transmission case.