Patent ID: 6540031
Filing Date: 2003-04-01
Classification: A01B

Abstract:
A small-sized tiller comprising:a power source for generating a rotational driving force; a tilling shaft; a power transmission mechanism for transmitting the rotational driving force of the power source to the tilling shaft; a plurality of tilling claws for tilling the ground and connected to the tilling shaft for undergoing rotation therewith; a resistance bar for insertion into the ground during tilling of the ground by the tilling claws to generate resistance forces for countering driving forces generated during rotation of the tilling claws; a manipulating handle for guiding the tiller and having a lower portion pivotally connected directly to a rear portion of the power source or directly to a rear portion of the power transmission mechanism so that shock energy which is generated when the tilling claws strike a hard solid object during tilling of the ground and which is transmitted to the power source or the power transmission mechanism is absorbed by pivotal movement of the power source or the power transmission mechanism relative to the manipulating handle about a pivot point; and a damping member disposed between the power source or the power transmission mechanism and the manipulating handle for damping shock energy generated when the manipulating handle undergoes pivotal movement in the upward and downward directions relative to the power source or the power transmission mechanism, the damping member having a first end pivotally connected to a portion of the power source or a portion of the power transmission mechanism and a second end opposite the first end and pivotally connected to a portion of the manipulating handle.