초록 ▼

An adjustable exercise machine using resistance for exercise the upper torso and arm muscles of a user comprises a bench assembly pivotally coupled to a support frame, and a seat support assembly for supporting and/or adjusting the user's body positions, the bench assembly being angularly adjustable

An adjustable exercise machine using resistance for exercise the upper torso and arm muscles of a user comprises a bench assembly pivotally coupled to a support frame, and a seat support assembly for supporting and/or adjusting the user's body positions, the bench assembly being angularly adjustable for supporting the body at either incline, supine, or decline positions, and the seat support assembly being angularly and/or vertically adjustable in order to support the user's body such that shoulder joints of the user will remain approximately in a same plane, which also passes through a bench pivot axle, at all angular positions of the bench assembly during the exercise of the user.

대표청구항 ▼

1. A method for determining a bench pivot axle position on a support frame of an exercise machine including a bench adapted to pivot about the bench pivot axle and equipped with a bench pad, the support frame and bench pad having a combined thickness w, said method comprising the steps of;(a) determ

1. A method for determining a bench pivot axle position on a support frame of an exercise machine including a bench adapted to pivot about the bench pivot axle and equipped with a bench pad, the support frame and bench pad having a combined thickness w, said method comprising the steps of;(a) determining a likely position of a user's shoulder joint relative to the support frame; (b) constructing vertical and horizontal reference planes through the likely position of the shoulder joint to define a shoulder joint axis at the intersection of said vertical and horizontal reference planes; (c) selecting a direction of an exercise motion at an angle .beta. within a predetermined range of 0.degree. to 135.degree. relative to said vertical reference plane; (d) constructing a motion plane T-T' at said angle .beta. and passing through said shoulder joint axis coincident with said selected direction of exercise motion; (e) constructing a body circle centered on said shoulder joint axis with a radius equal to about 4.1 inches; (f) constructing an approximate 2.5 inch square centered on said shoulder joint axis to establish a functional zone of offset for the shoulder joint relative to said shoulder joint axis; (g) selecting desired operational exercise bench angles .gamma.o, .gamma.f relative to said horizontal reference plane and defining .gamma. as the total exercise range angle; (h) constructing a plane So-So' through said shoulder joint axis at said angle .gamma.o and a plane Sf-Sf' through said shoulder joint axis at said angle .gamma.f; (i) constructing a pair of intersecting bench pad planes Po-Po' and Pf-Pf' parallel to said planes So-So' and Sf-Sf', respectively, and tangent to said body circle; (j) constructing a bench pivot axle plane F-F' through said shoulder joint axis and the intersection of said bench pad planes Po-Po' and Pf-Pf'; (k) constructing a pair of intersecting pivot planes Co-Co' and Cf-Cf' parallel to the respective bench pad planes Po-Po' and Pf-Pf' and offset by the combined thickness w; and (l) establishing an optimal bench pivot axle location at the intersection of said Co-Co' and Cf-Cf' planes, said optimal bench pivot axle location lying on said bench pivot axle plane F-F'.