Handle compositions, methods of use and methods of making
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Solution Overview
Problem
There is a long-felt need for handles that allow seamless transition into movement, particularly customized and lightweight handles that accommodate the user's hand comfortably, reducing ergonomic issues and the risk of repetitive use injuries.
Innovation Solution
The development of radially asymmetric handles with concave features and customized dimensions to match the user's hand, incorporating a ridge and cavity structure, and attachment points for instruments like musical or surgical tools, made from a resin, hardener, and filler mixture, optimized for reduced weight and balanced distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional handles are used, then manufacturing is simple, but ergonomic issues arise and user comfort deteriorates
Solution Approach 1:
The handle employs radially asymmetric geometry with non-uniform cross-sectional dimensions along its length, creating distinct first, second, and third surfaces with different areas. This asymmetric design allows the handle to conform to the natural contours of the user's hand, with larger surfaces contacting the palm and smaller surfaces contacting the fingers, thereby improving ergonomic fit and user comfort
Solution Approach 2:
The handle features localized variations in surface area and geometry at different positions along its length. The first surface has a different area than the second surface, which differs from the third surface, allowing each region to be optimized for specific contact points on the user's hand. This local differentiation enhances overall ergonomic performance without requiring complete redesign of the entire handle structure
2Weight of moving object
If traditional handle materials are used, then structural strength is adequate, but weight increases causing imbalance
Solution Approach 1:
The handle is constructed from composite materials including foam core surrounded by a shell material, creating a lightweight yet structurally sound design. The foam provides internal support and weight reduction, while the outer shell maintains surface integrity and strength. This composite approach allows the handle to achieve low weight without sacrificing the mechanical strength required for functional use
3Ease of operation
If customized handles are made, then user comfort improves, but manufacturing complexity increases
Solution Approach 1:
The handle design incorporates universal geometric principles with standardized surface relationships that can accommodate various hand sizes and shapes. The radially asymmetric form with defined surface area progressions creates a versatile template that provides good ergonomic fit across different users without requiring completely custom manufacturing for each individual, thus balancing customization benefits with manufacturing feasibility
Data Source
AI summary
The disclosure is generally directed to handles or hand grips, and more specifically, to handles with attached instruments, compositions of matter used to make such handles, and methods of making and using the same.