초록 ▼

A passive/active hydraulic exercise device having a base portion, an upright support and a pivot bard is selectively placed in either a passive push and pull type resistance mode or an active velocity type mode. In the passive mode, a pump can be off or on during "idling". A solenoid valve is energi

A passive/active hydraulic exercise device having a base portion, an upright support and a pivot bard is selectively placed in either a passive push and pull type resistance mode or an active velocity type mode. In the passive mode, a pump can be off or on during "idling". A solenoid valve is energized to an open position, and a servo valve sets a resistance for the fluid flow in the system. A check valve compensates for the differential areas of the cylinder. The active mode is useful for physical therapy applications. In this mode, a constant cycling operation is provided at absolute minimum force levels. The load cell senses the actual force generated, and the position feedback senses actual movement of the exercise bar. As long as the subject is providing enough force to move the bar, the feedback device confirms movement to the computer which adjusts the resistance of the electronic pressure control valve to a value which will allow the subject to continue moving the bar. This force is measured by the load cell and controlled by the servo-valve.

대표청구항 ▼

1. An exercise apparatus which is selectively placed in a resistance type passive operating mode and in an active type velocity operating mode, within a closed fluid circuit, which comprises:a) a base member for supporting the exercise apparatus; b) an upright member secured to said base member; c)

1. An exercise apparatus which is selectively placed in a resistance type passive operating mode and in an active type velocity operating mode, within a closed fluid circuit, which comprises:a) a base member for supporting the exercise apparatus; b) an upright member secured to said base member; c) a pivot bar having a first arm and a second arm spaced apart at a handle end and joined together at a cylinder end, said pivot bar pivotally secured to said upright member between the handle end and the cylinder end, said first and second arms having handle portions extending outwardly therefrom; d) at least one fluid cylinder connected between the upright member and the first end of said arm; e) a fluid pumping means in operable connection with the fluid cylinder; f) at least one force resistance sensor for monitoring the force generated by movement of said arm; g) at least one velocity sensor for monitoring the velocity of the fluid within the fluid circuit; g) at least one solenoid valve to selectively actuate the fluid pumping means; h) at least one servo valve to set the minimum resistance of the fluid within the fluid circuit; i) at least one load cell to sense the actual force generated by movement of the exercise bar; j) at least one check valve to keep any residual back pressure within the fluid circuit to a minimum in the passive operating mode; k) a computer control system with software to selectively control movement of the fluid within the fluid circuit; l) the active mode provides a constant cycling of the fluid within the fluid circuit at minimum force levels responsive to movement of the exercise bar, which is useful for physical therapy applications, and m) the passive mode provides a resistance relating to the push and pull of the exercise bar, and the solenoid valve is energized to an open position where the fluid forced out of a rod end of said cylinder is routed through a low pressure check valve to keep any residual pressure to a minimum, then redirected into a cap end of said cylinder.