초록 ▼

A seated abdominal exercise machine includes a frame, a seat mounted to the frame and a backrest attached to the frame rearwardly of the seat. An arm and head support assembly is mounted for rotary movement to the frame and provides a resistance adapted to be moved by an exerciser occupied in the se

A seated abdominal exercise machine includes a frame, a seat mounted to the frame and a backrest attached to the frame rearwardly of the seat. An arm and head support assembly is mounted for rotary movement to the frame and provides a resistance adapted to be moved by an exerciser occupied in the seat. A motion translation arrangement is pivotally mounted between the frame and the arm and head support assembly for providing an unrestricted, full range abdominal crunching motion for the seated exerciser. The machine relies upon a series of transfer members pivotally interconnected together between the frame and the arm and head support assembly and moving about a first fixed horizontal axis passing through the backrest, a first movable horizontal axis passing through the arm and head support assembly, a second fixed horizontal axis passing through the frame at a location offset from the first fixed horizontal axis, and a second movable horizontal axis which moves rearwardly and upwardly relative to the frame when a downward force is exerted upon the arm and head support assembly.

대표청구항 ▼

[ I claim:] [1.] A seated abdominal exercise machine comprising:a frame;a seat mounted to the frame;a backrest attached to the frame rearwardly of the seat;an arm and head support assembly mounted for rotary movement to the frame and providing a resistance adapted to be moved by an exerciser occupie

[ I claim:] [1.] A seated abdominal exercise machine comprising:a frame;a seat mounted to the frame;a backrest attached to the frame rearwardly of the seat;an arm and head support assembly mounted for rotary movement to the frame and providing a resistance adapted to be moved by an exerciser occupied in the seat; anda motion translation arrangement including:a transfer tube having a lower end pivotally mounted to the frame about a first fixed horizontal axis passing through the backrest, and an upper end pivotally mounted to the upper arm and head support assembly about a first moving horizontal axis; anda transfer link having a lower end pivotally mounted to the arm and head support assembly about a second moving axis, and an upper end pivotally attached to the frame about a second fixed horizontal axis which is offset relative to the first fixed horizontal axis.