Work vehicle

Abstract

A work vehicle includes a vehicle body frame, a first wheel, a second wheel, and a tank. The first wheel and the second wheel are configured to drive the vehicle body frame in a front-rear direction. The tank is supported by the vehicle body frame. The tank includes a tank body, a supply port, and a filter. The tank body is configured to store liquid. The supply port protrudes from the tank body in an upward direction. The filter is provided in the tank body to be connected to the supply port so as to capture foreign matter. The filter has a cylindrical shape with a cylindrical axis. The filter has a through hole that extends along the cylindrical axis. The cylindrical axis is inclined from the upper direction toward a leftward or rightward direction which is directed to an outside of the vehicle frame body.

What is claimed is: 
     
         1 . A work vehicle, comprising:
 a vehicle body frame;   a first wheel provided on a left side of the vehicle body frame;   a second wheel provided on a right side of the vehicle body frame, the left side being opposite to the right side in a left-right direction, the first wheel and the second wheel being configured to drive the vehicle body frame in a front-rear direction perpendicular to the left-right direction; and   
       a tank supported by the vehicle body frame and comprising:
 a tank body configured to store a liquid; 
 a supply port that protrudes from the tank body in an upward direction toward the vehicle body frame from a ground on which the work vehicle is placed, the upward direction being perpendicular to the left-right direction and to the front-rear direction; and 
 a filter provided in the tank body to be connected to the supply port so as to capture foreign matter that enters the tank body through the supply port, 
 the filter having a cylindrical shape with a cylindrical axis, the filter having a through hole that extends along the cylindrical axis, 
 the cylindrical axis being inclined from the upper direction toward a leftward or rightward direction which is directed to an outside of the vehicle frame body. 
 
     
     
         2 . The work vehicle according to  claim 1 , further comprising:
 a plug including a first projection which is engageable with the supply port,   wherein the supply port includes a second projection which is engageable with the first projection.   
     
     
         3 . The work vehicle according to  claim 1 ,
 wherein the filter includes a flange extending radially outward from a side surface of the cylindrical shape with respect to the cylindrical axis, and   wherein the supply port includes a receiving portion configured to support the flange.   
     
     
         4 . The work vehicle according to  claim 2 ,
 wherein the filter has a flange extending radially outward from a side surface of the cylindrical shape with respect to the cylindrical axis, and   wherein the supply port includes a receiving portion configured to support the flange.   
     
     
         5 . The work vehicle according to  claim 3 ,
 wherein the supply port has an inside diameter that is large enough to prevent the flange from contacting an inside wall of the supply port when the filter is moved along the cylindrical axis.   
     
     
         6 . The work vehicle according to  claim 4 ,
 wherein the supply port has an inside diameter that is large enough to prevent the flange from contacting an inside wall of the supply port when the filter is moved along the cylindrical axis.   
     
     
         7 . The work vehicle according to  claim 3 ,
 wherein the receiving portion includes
 a support surface configured to support the flange from an axial direction along the cylindrical axis, and 
 a guide surface configured to surround the side surface of the filter, 
   wherein the filter has a first protrusion that protrudes from the side surface in a radial direction with respect to the cylindrical axis,   wherein the receiving portion includes a second protrusion that protrudes from the guide surface toward an inside of an opening defined by the guide surface, and   wherein the first protrusion is engageable with the second protrusion.   
     
     
         8 . The work vehicle according to  claim 4 ,
 wherein the receiving portion includes
 a support surface that supports the flange from an axial direction along the cylindrical axis, and 
 a guide surface configured to surround the side surface of the filter, 
   wherein the filter includes a first protrusion that projects from the side surface in a radial direction with respect to the cylindrical axis,   wherein the receiving portion includes a second protrusion that protrudes from the guide surface toward an inside of an opening defined by the guide surface, and   wherein the first protrusion is engageable with the second protrusion.   
     
     
         9 . The work vehicle according to  claim 5 ,
 wherein the receiving portion includes
 a support surface configured to support the flange from an axial direction along the cylindrical axis, and 
 a guide surface configured to surround the side surface of the filter, 
   wherein the filter includes a protrusion that protrudes from the side surface in a radial direction with respect to the cylindrical axis,   wherein the receiving portion includes a second protrusion that protrudes from the guide surface toward an inside of an opening defined by the guide surface, and   wherein the protrusion is engageable with the second protrusion.   
     
     
         10 . The work vehicle according to  claim 6 ,
 wherein the receiving portion includes
 a support surface configured to support the flange from an axial direction along the cylindrical axis, and 
 a guide surface configured to surround the side surface of the filter; 
   wherein the filter includes a protrusion that protrudes from the side surface in a radial direction with respect to the cylindrical axis,   wherein the receiving portion includes a second protrusion that protrudes from the guide surface toward an inside of an opening defined by the guide surface, and   wherein the protrusion is engageable with the second protrusion.   
     
     
         11 . The work vehicle according to  claim 1 ,
 wherein the tank is provided at one of the left side and the right side of the vehicle body frame.   
     
     
         12 . The work vehicle according to  claim 1 ,
 wherein the liquid is urea aqueous.   
     
     
         13 . A work vehicle, comprising:
 a vehicle body frame;   a first wheel provided on a left side of the vehicle body frame;   a second wheel provided on a right side of the vehicle body frame, the left side being opposite to the right side in a left-right direction, the first wheel and the second wheel being configured to drive the vehicle body frame in a front-rear direction perpendicular to the left-right direction;   a first tank provided at one of the left side and the right side of the vehicle body frame; and   a second tank provided at another of the left side and the right side of the vehicle body frame,   the first tank comprising:
 a first tank body configured to store a first liquid; and 
 a first supply port that protrudes from the first tank body in an upward direction toward the vehicle body frame from a ground on which the work vehicle is placed, the upward direction being perpendicular to the left-right direction and to the front-rear direction, 
   the second tank comprising:
 a second tank body configured to store a second liquid; and 
 a second supply port that protrudes from the second tank body in a leftward or rightward direction which is directed to an outside of the vehicle frame body. 
   
     
     
         14 . The work vehicle according to  claim 13 ,
 wherein the first liquid is urea aqueous, and the second liquid is fuel.   
     
     
         15 . The work vehicle according to  claim 13 ,
 wherein the first tank further comprises a filter provided in the tank body to be connected to the supply port so as to capture foreign matter that enters the tank body through the supply port,   wherein the filter has a cylindrical shape with a cylindrical axis, the filter having a through hole that extends along the cylindrical axis, and   wherein the cylindrical axis is inclined from the upper direction toward a leftward or rightward direction which is directed to an outside of the vehicle frame body.   
     
     
         16 . The work vehicle according to  claim 14 ,
 wherein the first tank further comprises a filter provided in the tank body to be connected to the supply port so as to capture foreign matter that enters the tank body through from the supply port,   wherein the filter has a cylindrical shape with a cylindrical axis, the filter having a through hole that extends along the cylindrical axis, and   wherein the cylindrical axis is inclined from the upper direction toward a leftward or rightward direction which is directed to an outside of the vehicle frame body.   
     
     
         17 . The work vehicle according to  claim 13 , further comprising:
 a plug including a first projection which is engageable with the supply port,   wherein the supply port includes a second projection which is engageable with the first projection.   
     
     
         18 . The work vehicle according to  claim 13 ,
 wherein the filter includes a flange extending radially outward from a side surface of the cylindrical shape with respect to the cylindrical axis, and   wherein the supply port includes a receiving portion configured to support the flange.   
     
     
         19 . The work vehicle according to  claim 17 ,
 wherein the filter includes a flange extending radially outward from a side surface of the cylindrical shape with respect to the cylindrical axis, and   wherein the supply port includes a receiving portion configured to support the flange.   
     
     
         20 . The work vehicle according to  claim 18 ,
 wherein the supply port has an inside diameter that is large enough to prevent the flange from contacting an inside wall of the supply port when the filter is moved along the cylindrical axis.