Point-Symmetric Weight Arrangement for Limb Training Stability
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Solution Overview
Problem
Conventional limb training machines burden users with unnecessary mental and physical loads due to unconscious adjustments in direction, speed, and rhythm during exercise, leading to fatigue and inefficiency.
Innovation Solution
A limb training machine with first and second weights arranged in a point-symmetric positional relationship, integrated with an elastic intermediate region and pouch portions, reduces mental and physical burdens by promoting consistent movement through gravitational force and inertia.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a single weight is used in conventional limb training machines, then the device structure is simple, but the user experiences unstable movement and must continuously adjust direction, speed, and rhythm, increasing mental and physical load
Solution Approach 1:
The patent applies asymmetry by positioning the first and second weights at different locations on the limb training machine, specifically at points symmetric with respect to the central axis but not coincident. This asymmetric arrangement creates a balanced gravitational force distribution that stabilizes movement without requiring user adjustment, resolving the contradiction between ease of operation and device complexity.
Solution Approach 2:
The patent uses the counterweight principle by placing weights at specific positions that create balancing gravitational forces. The first and second weights are positioned to counterbalance each other's gravitational pull relative to the limb's central axis, creating stable movement patterns that reduce the user's mental and physical adjustment burden while maintaining a relatively simple overall structure.
2Stability of the object's composition
If weights are positioned to create stable gravitational force, then movement consistency improves, but the device structure becomes more complex
Solution Approach 1:
The patent employs asymmetry in weight positioning, placing the first and second weights at distinct locations symmetric with respect to the central axis. This asymmetric configuration creates naturally balanced gravitational forces that stabilize movement without requiring complex mechanical structures or multiple adjustment mechanisms, thus achieving movement stability with minimal structural complexity.
Solution Approach 2:
The patent applies equipotentiality by positioning weights at points that create balanced gravitational potential energy distribution relative to the limb's central axis. This ensures that during movement, the gravitational forces remain balanced, maintaining movement stability without requiring complex structural modifications or additional control mechanisms.
3Ease of operation
If point-symmetric weight arrangement is used, then unnecessary mental and physical load is reduced, but the weight distribution must be precisely controlled
Solution Approach 1:
The patent uses asymmetry to position weights at points symmetric with respect to the central axis but not at the same location. This asymmetric arrangement creates a self-balancing gravitational system that reduces the need for unconscious user adjustments. The design inherently provides stability without requiring extremely precise manufacturing tolerances, as the asymmetric positioning allows for natural balancing of forces during movement.
Solution Approach 2:
The patent applies dynamics by creating a weight arrangement that adapts to movement naturally. The point-symmetric positioning of weights allows the gravitational forces to dynamically balance each other during limb movement, reducing the need for precise static positioning and enabling the system to self-correct during operation without requiring high manufacturing precision.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution allows users to efficiently perform limb training by minimizing the need for unconscious adjustments, reducing fatigue and improving exercise efficiency through balanced weight distribution and inertia-based movement promotion.
Implementation Method 1
a load being applied to the limb by means of gravitational weights of the first and second weights in a wearing state
Implementation Method 2
the intermediate region may have an elastic property
Data Source
AI summary
This limb training machine 1 is provided with a wearable main body unit 2 that can be worn on a limb B, and with a first weight 31 and a second weight 32 mounted on the wearable main body unit 2 and, in a state worn on the limb B, applying a load to the limb by means of the weight of the first weight 31 and the second weight 32, wherein, in said worn state, the first weight 31 and the second weight 32 are substantially in a point symmetric positional relation when viewed in a perpendicular direction DB2 perpendicular to the central axis JB1 in the longitudinal direction of the limb B.