Rotational Exercise Handle Reduces Joint Stress
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Solution Overview
Problem
Existing pull handles in exercise equipment impose unnatural stress on users' joints due to limited mobility and lack of rotation, restricting the range of motion and types of exercises that can be performed.
Innovation Solution
An ergonomically designed pull handle with one or more axes of rotation or flexibility, allowing the user's hand, wrist, and arm to bend and rotate naturally through the range of motion, incorporating a handle with a track and bracket system that allows for smooth movement and attachment to various exercise equipment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a fixed-point pull handle is used, then the structure is simple and stable, but the range of motion is limited and unnatural stress occurs on joints
Solution Approach 1:
The pull handle is transformed from a fixed rigid structure to a dynamic system with rotational degrees of freedom. The handle assembly includes a handlebar that can rotate relative to the attachment point, allowing the user's hand, wrist and arm to move through a more natural range of motion while performing exercises. This dynamic capability resolves the contradiction by enabling greater operational freedom without requiring complete structural redesign.
Solution Approach 2:
The pull handle is divided into separate functional segments: a fixed attachment point, a rotational joint mechanism, and a movable handlebar. This segmentation allows each component to perform its specific function - the attachment point provides stable connection, the rotational joint enables controlled movement, and the handlebar provides user grip. The segmented structure achieves enhanced range of motion while maintaining overall structural simplicity.
2Adaptability or versatility
If a fixed-point pull handle is used, then the manufacturing is simple, but the handle cannot accommodate hand, wrist and arm rotation
Solution Approach 1:
The addition of a rotational joint mechanism transforms the handle from a static component to a dynamic one that can adapt to different exercise movements. This enables the handle to accommodate various hand, wrist and arm rotations required for different exercises, significantly improving adaptability. The mechanical nature of the rotational joint keeps manufacturing complexity manageable through standard mechanical components.
Solution Approach 2:
The pull handle with rotational capability becomes a multi-functional device that can support multiple types of exercises requiring different movement patterns. The same handle assembly can accommodate various grip orientations and movement arcs, making it universally applicable to diverse exercise routines without requiring multiple specialized handles, thus improving versatility while maintaining manufacturing efficiency.
3Object-affected harmful factors
If a fixed-point pull handle is used, then the structure is stable, but unnatural stress is created on joints, ligaments and tendons
Solution Approach 1:
The rotational joint mechanism allows the handle to dynamically adjust its orientation during exercise movements, enabling the user's joints to move through their natural range of motion. This reduces unnatural stress on joints, ligaments and tendons by accommodating physiological movement patterns rather than forcing fixed-point movement. The added mechanical complexity is minimal and focused solely on providing this stress-reducing rotational capability.
Data Source
AI summary
A pull handle that is ergonomically designed to avoid unnatural stresses on the user's body through the range of motion is disclosed. The invention enables a user to perform exercises that cannot be accomplished with existing handles or may be more difficult to do so. These objects are achieved by providing one or more axes of rotation or flexibility in the pull handle so that the user's hand, wrist and/or arm (or foot, ankle and/or leg) may bend and/or rotate more naturally through the user's range of motion.