 Climbing wall assembly |
| The magnetic climbing wall assembly of the invention comprises a plurality of wall panels, wall ... |
|
| Device for the prevention of RSI symptoms |
| I claim: 1. A system for preventing RSI symptoms when keys of a keyboard are operated, said ... |
|
| Method and apparatus for providing synchronization of low to high shifts in a transfer case |
| The present invention overcomes the disadvantages in conventional transfer cases by providing a ... |
|
| Interactive exercise system and attachment module for same |
| It is therefore an object of this invention to provide a simple, inexpensive, and easily ... |
|
| Method and apparatus for speed controlled eccentric exercise training |
| OF EXEMPLARY EMBODIMENTS The present invention is directed to a method and apparatus for ... |
|
| Electronic grocery lister |
| The present invention relates to an electronic notepad to be called "Mr. Grocery Lister", which ... |
|
| Polestrider exercise apparatus with dual treads |
| The present invention relates to the kinematic motion control of a pair of treadles each having a ... |
|
| Adaptive weight device |
| It is an object of the present invention to provide an adaptive weight system that can be removably ... |
|
| Controllable platform suspension system for treadmill decks and the like and devices therefor |
| The present invention is a controllable suspension system for a platform, which is particularly ... |
|
| Playground equipment |
| What is claimed is: 1. Playground equipment comprising: a stationary circular ring mounted on ... |
|
|
Isokinetic exercise method and apparatus, using frictional braking
| Details |
Inventors: Bloch, Ralph F.;
Assignee:
Primary Examiner: Apley; Richard J.
Assistant Examiner: Bender; David J.
Attorney, Agent or Firm: Behr; Omri M.
A concentric, isokinetic exercise apparatus providing accommodating resistance to the exercising user, while maintaining constant speed. The user exercises on a wheel, crank, lever or similar device. The power exerted by the user is applied directly or coupled by means of gears or chains to a rotating brake assembly comprising a braking rotor and a threaded hub. The threaded hub meshes with a threaded axle, turned by a reference motor at a selected speed. When hub and axle rotate at the same speed, the hub does not change its axial position. Any difference of rotational speed between axle and hub results in axial movement of the hub. Whichever of the two speeds is the larger determines the direction of axial movement. If the speed of the hub exceeds that of the axle, the hub with its attached brake rotor is moved towards the brake stator, thereby causing braking action. Conversely, if the hub speed is lower than that of the axle, the brakes disengage and eventually, a switch will interrupt the power to the reference motor. |
|
DETAILED DESCRIPTION This invention relates generally to exercise apparatus and, more particularly, to exercise apparatus compelling isokinetic type exercise in a concentric direction against proportioned resistance, employing automatic, mechanical control of braking.
Exercise, applied through an interfacing means, is coupled to an exercise member.
The exercise member is part of a mechanical comparator, comparing the speed of exercise with that of an electric reference motor.
Any difference between the two rotational speeds causes a linear movement.
If the liner movement is in the direction corresponding to excess exercise speed, it causes an increase in the engagement of frictional brakes.
Conversely, if the linear movement is in the direction corresponding a deficit in the exercise speed compared to the reference speed, it will activate an electrical switch to interrupt the current to the reference motor.
It is therefore the primary object of the present invention to provide an isokinetic exercise apparatus having accommodating, active resistance while accurately maintaining a preselected speed.
A second object of this invention is to achieve true isokinetic operation more simply and economically than in prior art.
It is still another object of this invention to allow both reciprocating and continuous exercise.
It is also an object of this invention to provide an exercise means to a variety of users, ranging from the disabled patient to the able bodied athlete.
It is an additional object of this invention to provide a source of isokinetic resistance for a variety of different exercises, including wheeling, cycling, single joint exercise and functional task simulation.
It is a further object of this invention to allow measurement, display and recording of exercise torque and expended power.
In addition, it is an object of this invention to provide said isokinetic exercises safely, without the usual hazards associated with an actively powered, eccentric exercise apparatus.
Another object of this invention is to provide an isokinetic exercise apparatus, allowing for easy user setup, without the need for accurate joint axis alignment
|
|
Exercise Devices 
