Tractor

A tractor comprising:

• an HST;
• a frontward/rearward movement pedal which is connected to an HST trunnion shaft of the HST, and is provided at one side of left-and-right sides of a step floor;
• a link mechanism which is provided at other side of the left-and-right sides of the step floor;
• a frontward/rearward movement pedal rotation-shaft which extends in a left-and-right direction below the step floor, with both end parts of the frontward/rearward movement pedal rotation-shaft being respectively connected to the frontward/rearward movement pedal and the link mechanism, and rotates in correspondence to swinging of the frontward/rearward movement pedal;
• a link mechanism fixation-member which regulates rotation of the HST trunnion shaft by abutting the link mechanism;
• a link mechanism fixation-member operation lever which makes the link mechanism fixation-member abut the link mechanism, or makes the link mechanism fixation-member move in a direction so as to get apart from the link mechanism;
• a brake pedal which is provided at the other side of the left-and-right sides of the step floor;
• and
• a link mechanism joining-cancellation mechanism which makes, in a case where the link mechanism fixation-member is abutting the link mechanism, the link mechanism fixation-member move in a direction so as to get apart from the link mechanism when stepping-on of the brake pedal is performed,
• wherein the link mechanism joining-cancellation mechanism comprises a link mechanism joining-cancellation plate which makes, by abutting the link mechanism fixation-member, the link mechanism fixation-member move in a direction so as to get apart from the link mechanism when stepping-on of the brake pedal is performed,
• the brake pedal comprises a left brake pedal which corresponds to a brake of a vehicle-wheel at a left side, and a right brake pedal which corresponds to a brake of a vehicle-wheel at a right side, and
• the link mechanism joining-cancellation plate comprises a first plate corresponding to the left brake pedal, and a second plate corresponding to the right brake pedal.