Multifunctional exercise treadmill with sensor for activating motor driven tread belt or not in response to force exerted upon the tread belt for additionally exercising either foot muscles or both foot and hand muscles
An exercise treadmill includes a tread belt wrapped around front and rear rolls, a motor, a frame, a control panel, a sensor electrically connected to the motor for sensing a rotation of its driving shaft and generating a sense signal if sensing the rotation, and a controller electrically interconnected the sensor and the control panel for receiving the sense signal and generating and sensing a control signal to the motor. The motor may either stop the rotation of the driving shaft for maintaining the tread mill motionless in response to the user's foot impact thereon less than or equal to a predetermined reverse force or oppose a movement of the tread belt in response to the impact larger than the reverse force. Moreover, the tread belt either maintains at its current position or returns to its original position in response to stopping exercise.
1. An exercise apparatus comprising:
front and rear rolls;
a moving tread belt wrapped around the rolls, a user being capable of walking, running, or sitting on the tread belt;
a motor having a driving shaft, a belt wrapped around the front roll and an open end of the driving shaft, and a reduction gear at one side of the front roll such that the driving shaft is adapted to rotate the front roll when the motor activates;
a frame with the rolls, the tread belt, and the motor mounted and including two front uprights;
a control panel mounted on a top of the uprights;
a sensor electrically connected to the driving shaft for sensing a rotation of the driving shaft and generating a sense signal if the sensor senses the rotation of the driving shaft; and
a controller electrically interconnected the sensor and the control panel, the controller adapted to receive the sense signal and generate a control signal which is in turn sent back to the motor;
wherein the control signal commands the motor to activate to generate a reverse force to either (i) stop the rotation of the driving shaft in substantially real time for maintaining the tread mill motionless in response to the user's foot impact on the tread mill less than or equal to a predetermined reverse force or (ii) oppose a movement of the tread belt in substantially real time in response to the user's foot impact on the tread mill larger than the predetermined reverse force; and
wherein either after moving the tread belt, the tread belt maintains at its current position in response to stopping exercise or the user's foot impact on the tread mill is less than or equal to the predetermined reverse force; or the movement of the tread belt involves firstly moving the tread belt rearward, and secondly moving the tread belt forward to its original position in response to stopping exercise or the user's foot impact on the tread mill being less than or equal to the predetermined reverse force.
2. The exercise apparatus of claim 1 , further comprising a seat for permitting the user to sit thereon, a cross rail interconnecting the uprights, and two foot rests mounted on the cross rail.
3. The exercise apparatus of claim 1 , wherein the frame further comprises two side levels adjacent the seat.