Exercise machines for weight training

The exercise machine addresses inefficiencies in weight training equipment by using a movable seat assembly on curved rails with a translating stop device and pulley system to ensure consistent resistance and enhanced user experience through improved motion range and mechanical efficiency.

US20260124492A1Pending Publication Date: 2026-05-07LIFE FITNESS LLC
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Patent Information

Authority / Receiving Office
US · United States
Patent Type
Applications(United States)
Current Assignee / Owner
LIFE FITNESS LLC
Filing Date
2026-01-07
Publication Date
2026-05-07

AI Technical Summary

Technical Problem

Existing exercise machines for weight training, such as leg press exercises, often face inefficiencies due to non-linear cable routing and varying resistance profiles, leading to inconsistent exercise performance and potential mechanical inefficiencies.

Method used

The exercise machine incorporates a resistance mechanism with a movable seat assembly that moves along curved rails, resisted by a pulley system, and a stop device with an engagement member that translates along a stop surface to maintain consistent resistance and adjust the seat's rest position, using self-aligning rollers to accommodate slight misalignments in the rails.

Benefits of technology

This design ensures consistent resistance throughout the exercise motion, enhances user comfort by allowing for a greater range of motion, and reduces mechanical inefficiencies by maintaining tension in the pulley cables, thereby improving the overall exercise experience.

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  • Figure US20260124492A1-D00000_ABST
    Figure US20260124492A1-D00000_ABST
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Abstract

An exercise machine comprising a resistance mechanism, a supporting frame, and a movable member which is movable relative to the supporting frame into and between a rest position and an extended position during performance of an exercise motion by a user. Movement of the movable member towards the extended position is resisted by the resistance mechanism. A stop device stops the movable member in the rest position, the stop device having an engagement member which engages and is able to translate along a stop surface on the supporting frame when the movable member is moved into the rest position.
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