| 摘要 |
A rodeo roping practice steer comprising a body frame for mounting a body resembling a bovine animal, first pivot connecting element for pivotally attaching a head to the body frame and second pivot connecting element for pivotally attaching at least one pair of legs to the body frame, a cart frame for mounting the body frame, the cart frame including a pair of rear drive wheels and a front castor wheel pivotal about a vertical axis, an electric motor having two output drive shafts, electric clutches/brakes mounted on each of the drive shafts and drivingly connected with the drive wheels, a linkage interconnecting at least one of the drive shafts and the pivot connecting means for pivotally moving the pair of legs, a source of electricity for driving the motor, control means for selectively engaging and disengaging the electric clutch/ brake and the second pivot connection, a first sensor member mounted on the body frame for delivering a first signal to the control system in response to a condition sensed by first sensor member and directing a change in the operation of the electric motor in response to the first signal. |
