Work vehicle

A work vehicle comprising:

• a vehicle body frame having a front-back direction, a lateral direction perpendicular to the front-back direction, and a height direction perpendicular to the front-back direction and the lateral direction;
• an arm assembly attached to the vehicle body frame to be rotatable about a first rotational axis extending in the lateral direction;
• an arm cylinder attached to the vehicle body frame to be rotatable about a second rotational axis substantially parallel to the first rotational axis to control raising and lowering of the arm assembly in the height direction;
• a front plate attached to the vehicle body frame in front of the arm cylinder in the front-back direction;
• a back plate attached to the vehicle body frame in back of the arm cylinder in the front-back direction;
• a side plate attached to the front plate and the back plate opposite to the vehicle body frame with respect to the arm cylinder in the lateral direction;
• and
• a bottom plate attached to the vehicle body frame and the side plate below the arm cylinder in the height direction;
• the vehicle body frame the front plate, the back plate, and the side plate surrounding the arm cylinder;
• the front plate extending in a reference direction in which the arm cylinder is directed when a work equipment attached to the arm assembly is grounded;
• a straight line connecting front ends of the arm cylinder directed in the reference direction to extend in the reference direction being defined as a first straight line, the front ends having heights from the second rotational axis in the height direction that are different from each other;
• a straight line connecting back ends of the arm cylinder directed in the reference direction to extend in the reference direction being defined as a second straight line, the back ends having heights from the second rotational axis in the height direction that are different from each other;
• a front end of the bottom plate in the front-back direction being provided between the first straight line and the second straight line in a cylinder width direction perpendicular to the reference direction and the lateral direction, as viewed in the lateral direction;
• and
• the front end of the bottom plate, the front plate, the side plate, and the vehicle body frame defining an opening below the arm cylinder in the height direction.