Abstract: An architecture is presented that provides a full assist resistance device designed to assist users in weight training by allowing the users to start pushing and pulling exercises in full extension or full flexion positions, respectively. The device comprises a jack device and an actuating means for operating the jack device. The actuating means is mounted to a mounting plate and is in communication with the jack device. Generally, the jack device comprises at least one foot pedal that a user would manipulate to raise and lower the weight stack, and to adjust the resistance for moving the weight stack. Furthermore, the full assist resistance device would be used in conjunction with a weight-stacked type exercise machine.

Abstract: A trailing arm axle/suspension system includes rigid or spring beams for mounting the axle directly to the beam without any or minimal, respectively, additional mounting hardware or structure. An axle mounting plate is formed as part of the preassembled rigid beam or attached to the spring beam, and is formed with a recess that can range from significantly smaller than to generally the same size as the smallest axle which will be seated therein. The axle is extruded into the recess to eliminate clearance and create intimate contact between the axle and the axle mounting plate. The force typically deforms the axle from its normal cross-sectional shape, such as round, into a generally oval or elliptical cross-sectional shape. Such clearance-free intimate contact also creates a constant preload or compression between the axle and the axle mounting plate in the recess area.

Abstract: A trailing arm axle/suspension system includes rigid or spring beams for mounting the axle directly to the beam without any or minimal, respectively, additional mounting hardware or structure. An axle mounting plate is formed as part of the preassembled rigid beam or attached to the spring beam, and is formed with a recess that can range from significantly smaller than to generally the same size as the smallest axle which will be seated therein. The axle is extruded into the recess to eliminate clearance and create intimate contact between the axle and the axle mounting plate. The force typically deforms the axle from its normal cross-sectional shape, such as round, into a generally oval or elliptical cross-sectional shape. Such clearance-free intimate contact also creates a constant preload or compression between the axle and the axle mounting plate in the recess area.