Ergonomic Handheld Weight with Asymmetric Protrusion for Torque Control
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Solution Overview
Problem
Current handheld weights do not effectively distribute weight across the hand, leading to poor muscle memory development and increased risk of injury due to negative torque on joints during sports training.
Innovation Solution
Design of handheld weights with specific ergonomic shapes and weight distributions that conform to the natural hand grip, featuring protrusions such as hooks, mushrooms, or fins to create a positive torque effect during training exercises.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If standard dumbbells are used for strength training, then muscle strength can be built, but negative torque is created on wrists and elbows resulting in poor form and technique
Solution Approach 1:
The weight unit employs asymmetric weight distribution with a protrusion positioned offset from the central axis, creating a non-uniform mass arrangement that generates positive torque during rotational movements. This asymmetric design shifts the center of gravity to produce a torque arm that naturally guides proper wrist and elbow alignment during exercises, thereby improving form and technique while maintaining strength training benefits
Solution Approach 2:
The protrusion feature is strategically positioned at a specific location on the weight unit body to create a localized torque effect. This localized weight concentration at the protrusion tip generates the necessary positive torque during rotational exercises, while the rest of the weight unit maintains a balanced form for secure hand holding, thus resolving the contradiction between strength building and proper technique
2Duration of action of moving object
If current dumbbells are used for training, then strength and endurance can be developed, but poor muscle memory is created from improper weight distribution
Solution Approach 1:
The asymmetric protrusion design creates a consistent positive torque effect during each repetition of exercises, providing reliable tactile and mechanical feedback that reinforces proper movement patterns. This consistent torque guidance over repeated sets and sessions helps establish accurate muscle memory while developing endurance, as the asymmetric weight distribution remains constant throughout the training duration
3Productivity
If standard weights are used, then training can be performed, but increased risk of injury occurs due to negative torque on joints
Solution Approach 1:
The invention converts the potential harmful negative torque effect into a beneficial positive torque by strategically positioning the protrusion offset from the central axis. This design transforms what would be a joint-stressing force into a protective torque that naturally guides joints through proper ranges of motion, reducing injury risk while maintaining full training capability
Solution Approach 2:
The asymmetric protrusion positioning creates a torque arm that generates positive torque during rotational movements, effectively counteracting the negative torque that would otherwise stress wrists and elbows. This asymmetric weight distribution allows athletes to train with the same or increased intensity while the positive torque effect protects joints from injury
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 ergonomic design of the weights allows for proper technique and muscle memory development during sports training, reducing the risk of injury while promoting efficient and effective physical performance.
Implementation Method 1
a feature at an end of the body configured to create a slight inward torque when the weight unit is held in a hand of a user during physical sports training
Data Source
AI summary
An exercise weight unit adapted to be handheld and palm-centered comprising a body and a feature at an end of the body configured to create a slight inward torque when the weight unit is held in a hand of a user during physical sports training, wherein the feature is one of a hook shape, a mushroom shape and a fin shape.