Patent ID: 8827876
Filing Date: 2014-09-09
Classification: A63B

Abstract:
1. An exercise machine for exercising the chest muscles of a user, comprising: a frame; a seat attached to the frame to support a user seated straddling a first vertical plane, and said seat can telescope up and down and move forward and backward to accommodate user; two front stanchion supports nearer the user and two rear stanchion supports farther from the user attached to the frame, said front and rear stanchions forming a rectangle and bisected by said first vertical plane; an upper arm pivot axle support member attached horizontally to the said front stanchions and a lower arm pivot axle support member attached horizontally to the said rear stanchions, where the said lower arm pivot axle support member is attached lower vertically on the rear stanchions than the said upper arm pivot axle support member is attached on the front stanchions, by about 7° from the horizontal; an arm pivot axle attached to the said upper arm pivot axle support member and said lower arm pivot axle support member, said arm pivot axle extending beyond the said stanchion rectangle inwardly towards the user, and said arm pivot axle in alignment with and within the said first vertical plane; a pair of exercise arms, each having a first end rotatably attached to the said arm pivot axle; said pair of exercise arms designed to move in a circular convergent motion around the said arm pivot axle, whereby the user's elbow extension suffers a deceleration through the stroke, and said elbow extension requires a lateral movement of the wrist joint; amount of said elbow extension through the stroke is determined by the forward lean angle of the user; a second end of said exercise arms designed to accommodate a hand-grip which is grasped and pressed downward and inward toward the mid-line of the user's body, through the circular machine determined path, through 90° of rotation, whereby the direction of the resulting force applied to the said exercise arms at the start position of the stroke is normal to the direction of the resulting force at the end position of the stroke, such that the user's hands meet at the end of the stroke; said exercise arm's first ends each rotate through a second or third plane, said second and third planes are parallel to each other and displaced perpendicularly from each other by an amount equalling the length of the exercise arm offset; said hand-grips move in the third vertical plane, closer to the user than the second vertical plane, and said second and third vertical planes are normal to and forwardly declined from the said first vertical plane by about 7°, thus eliminating interference between the user's arms and the rising sweep arms; said pair of sweep arms rotatably attached at its first end to the arm pivot axle and each of the said exercise arm's first end, wherein the said sweep arm is normal to the said exercise arm and each of the said sweep arms travel through the same vertical planes as their attached exercise arm; a cord is attached to each of the said sweep arm's second ends, and each of the said cords travel through pulleys to guide the path of the said cords, and each of the said cords are attached to a method of resistance; each said cord is attached at the sweep arm second end and is directed downward and outward and through the outer pulley located on the pulley base bar on the same side of the said first vertical plane as the said second end of the attached exercise arm, such that the said cord is channelled downward from the horizontal toward the outer pulley at an angle of about 20°, and subsequently through the remaining pulleys; said pair of sweep arms rotate around the arm pivot axle initially generating a decreasing leverage at the said second end of the exercise arms through the first 20° of rotation, to the point of maximal displacement, and subsequently leverage begins to increase at the said second end of the exercise arms at 20° of rotation; said hand-grips telescope at their first end and attach to the second end of each exercise arm, thus defining the size of the circular exercise motion path, and second end of said hand-grips is meant to be grasped by the user; wherein the said hand-grip second end is upwardly angled from the horizontal less than 30°, thus providing angular displacement for the wrist joint to move laterally through the stroke.