US 6,270,446 B1 · Duel purpose exercise device

Abstract

The disclosed invention is an exercise device being capable of providing aerobic exercise and abdominal muscle conditioning. The device is comprised of an upper frame and a lower frame. The upper frame includes a seat back which supports the upper portion of the torso of a user. The lower frame includes a pelvis support and a bicycle pedaling mechanism. The preferred embodiment includes a linkage system that connects the upper frame to the lower frame. This linkage is capable of providing a translating center of rotation when the upper frame rotates with respect to the lower frame. This is done to follow the body's translating center of rotation during trunk flexion. An alternative to the preferred embodiment includes a arcuate roller attached to the upper frame. This arcuate roller is preferably received by a track on the lower frame, and though preferable, the track is not necessary in order to achieve a translating center of rotation and therefore not necessary to the function of the invention. The upper frame and the lower frame are pivotally mounted one to another thus allowing the device to fold onto itself for easy storage.

Claims21

Dependent claims

An exercise device comprising:

a lower frame;
a pair of pedals, each of the pedals connected to a crank arm, the crank arms connected by a shaft that is journaled to said lower frame, thus enabling rotary motion of the pedals;
an upper frame including a seat back capable of supporting a portion of the torso of a user lying in a supine position thereon, the upper frame including at least one handle;
and
a device for providing a consistent translating center of rotation, the device connecting said upper frame to said lower frame.

2 more elements

Dependencies are inferred from the claim text.

Duel purpose exercise device

Life of this patent

Duel purpose exercise device

Life of this patent

Abstract

Claims21