Patent ID: 11864495
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Other special machines (Mechanical engineering)
Classification: CPC A | IPC A

Claim 0:
1. A robot lawnmower comprising:
a body frame;
a main wheel disposed on both sides of the body frame;
a motor to drive the main wheel;
a first edge blade provided in a region of the body frame corresponding to the main wheel and coupled to be rotatable in a rotational direction opposite of a rotational direction of the main wheel with respect to the body frame by way of a driving force received from the motor; and
a second edge blade disposed between the body frame and the main wheel to rotate in an identical rotational direction of the rotational direction of the main wheel and cut grass by a relative rotation of the first edge blade and the main wheel, wherein the relative rotation of the first edge blade is a rotational motion opposite of a rotational motion of the second edge blade.