Riding-type mowing apparatus including height adjustment part of mower unit

1 . A riding-type mowing apparatus having a height adjustment part of a mower unit, in which the mower unit is disposed below a body frame to mow grass through a blade mounted in the mower unit and a driver seat is provided on the body frame, the riding-type mowing apparatus comprising:

a lower limit adjustment lever provided at a position in which a user sitting in the driver seat is able to reach the position by extending an arm of the user;

a lever connection bar coupled to a lower portion of the lower limit adjustment lever and extending in a linear shape;

a lower limit adjustment step configured to rotate together with the lever connection bar and to adjust a lift-down height of the mower unit using the lower limit adjustment lever when the mower unit is lifted down toward a ground;

a brake pedal provided on a bottom frame disposed in front of the body frame to brake the riding-type mowing apparatus; and

a lift-down pedal and a lift-up pedal disposed on both sides of the brake pedal to lift-down and lift-up the mower unit, respectively, to lift down and up the mower unit,

wherein the lift-down pedal and the lift-up pedal are disposed at positions symmetrical to each other about the brake pedal,

wherein the lower limit adjustment step has a cylindrical shape, and wherein a lower surface of the lower limit adjustment step is formed with a plurality of stepped portions having different distances from the ground;

a first front deck link coupled to a front upper surface of the mower unit; a second front deck link coupled to the first front deck link and the body frame;

a first rear deck link coupled to a rear upper surface of the mower unit; a second rear deck link coupled to the first rear deck link and the body frame; and

a protruding latch part formed at an end portion side of the second rear deck link to have a shape protruding upward with a predetermined thickness, and configured to make contact with a lower surface of the lower limit adjustment step when the mower unit is lifted down, wherein the protruding latch part is a portion formed on an upper surface of the second rear deck link, and includes a latch groove having a predetermined depth and a latch protrusion protruding at a predetermined height, and wherein the protruding latch part does not make contact with the lower surface of the lower limit adjustment step when the mower unit is lifted up away from the ground.

2 . The riding-type mowing apparatus of claim 1 , wherein the lower limit adjustment lever, the lever connection bar, and the lower limit adjustment step are configured such that centers thereof are located on a straight line.

3 . The mowing apparatus of claim 1 ,

wherein the stepped portion includes a first stepped portion that allows a lower limit height of the mower unit to be set to a first height when the protruding latch part makes contact with the first stepped portion, a second stepped portion that allows the lower limit height of the mower unit to be set to a second height lower than the first height, and a third stepped portion that allows the lower limit height of the mower unit to be set to a third height higher than the first height, and

wherein the second stepped portion is formed to be closer to the ground compared to the first stepped portion.

4 . The mowing apparatus of claim 3 , wherein any one of the stepped portions formed on the lower surface of the lower limit adjustment step is seated on the latch groove, and the latch protrusion makes close contact with the corresponding stepped portion.