Exerciser for aerial calisthenics

摘要

An arrangement of a harness, hoist and handles for the variable tension ring exerciser is disclosed. The harness includes a pair of small rings secured to two diametrical sides of a belt securable around the lower portion of the torso of a person and a pair of Y-shaped straps securable around thighs of the person wearing the harness. The end of the first branch of the first Y-shaped strap is secured to the belt of the harness at a proximity to the first small ring, to which end means of securing the stem of the first Y-shaped strap is attached. The end of the second branch of the first Y-shaped strap is secured to the belt intermediate the first small ring and the middle point of the rear half of the belt. The second Y-shaped strap including means of securing its stem is similarly secured to the belt in the vicinity to the second small ring. The hoist includes a pair of elongated structural members having cross section of a channel, within the grooves of which channels a plurality of sheaves are rotatably secured in a series aligned along the length of each elongated structural member. This pair of elongated structural members are linked to one another by a pair of ropes repeatedly engaging various pairs of sheaves, each of which pairs of sheaves includes the first sheave belonging to one elongated structural member and the second sheave belonging to the other elongated structural member. The longer of two elongated structural members includes a pair of pulleys suspended from two ends of that member, respectively. The handle is formed by three segments of tubular rods threaded in series by a rope, which rope is tied to form a closed loop resulting a triangular ring with three sides formed by three segment of tubular rods.PPThe present invention relates to a harness, hoist and handles for pulling a person up in midair himself, and more particularly, to a harness, hoist and handles used in constructing a variable tension ring exerciser invented by this inventor.PPThe variable tension ring exerciser is an exercising apparatus including a pair of ring-shaped handles, a hoist suspended in mid air and a harness securable around the lower torso of the exercising person. The pair of handles are secured to the ends of two ropes suspended from the hoist, respectively, each of which ropes engages each of a pair of pulleys included in the hoist. The harness is connected to the hoist by means of a pair of ropes extending from two diametrical sides of the belt included in the harness. With this arrangement, a pulling force exerted on both handles by the exercising person lifts him off the ground and suspends in midair, which enables him to perform a variety of airborne exercises. The tensions exerted on the pair of ropes connected to the handles created by the body weight of the exercising person can be varied by changing the combination of the sheaves engaged by those ropes, which sheaves are included in the hoist. It may be understood that the variable tension ring exerciser can be also used for exercising without making the exercising person airborne. PPThe variable tension ring exerciser is one of a few exerciser, which enables noneathletes to perform aerial exercises. It provides fun and exercise for those untalented and unskilled as well as for those experienced in physical exercises. As an exercising apparatus for average people, the variable tension ring exerciser must be easy and comfortable to use. The harness used in the variable tension ring exerciser must provide a confortable support for lifting the exercising person. The hoist used in the variable tension ring exerciser must operate smoothly under all possible loading conditions arising from the various phases of exercising. The handles used in the variable tension ring exerciser must provide a sure and comfortable grip. Yet all of these elements of the variable tension ring exerciser can be manufactured easily and inexpensively, which is an essential condition to make the variable tension ring exerciser available to average people.P PIt is therefore a primary object of the present invention to provide a harness for the variable tension ring exerciser, which harness is comfortable to wear.PPAnother object of the present invention is to provide a harness for the variable tension ring exerciser, which harness permits the maximum freedom for the body movements. PPStill another object of the present invention is to provide a harness for the variable tension ring exerciser, which harness includes a pair of Y-shaped straps securable around the thighs.PP Yet another object of the present invention is to provide a harness for the variable tension ring exerciser, which harness is easy and inexpensive to manufacture.PPA further object of the present invention is to provide a light weight hoist for the variable tension ring exerciser, which hoist operates smoothly under all possible loading conditions arising from various phases of exercising.P PStill further object of the present invention is to provide reliable and inexpensive hoist for the variable tension ring exerciser. P PYet further object of the present invention is to provide a handle for the variable tension ring exerciser, which handle is inexpensive to manufacture and yet provides a comfortable and sure grip. PPThese and other objects of the present invention will become apparent to those skilled in the art as the description thereof proceeds.