Custom Handle Core Manufacturing via 3D Printing
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Solution Overview
Problem
Existing methods for manufacturing handles for hand luggage are either lengthy and require multiple moulding steps or do not address the specific needs of composite handles with surface treatments, and they do not provide a fast and user-friendly customization process.
Innovation Solution
A method using computer-aided technology to generate a handle core model based on user hand dimensions, allowing for the rapid production of customized handle cores using additive techniques like 3D printing, which can be easily implemented in retail settings, and enabling surface treatments such as painting or leather wrapping.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional moulding methods are used to manufacture handles, then the handle can be customized to user hand dimensions, but the manufacturing process becomes lengthy and requires multiple moulding steps
Solution Approach 1:
The patent pre-calculates and stores optimal handle dimensions based on user hand measurements before the actual manufacturing process. By performing the dimensional calculation and model generation in advance (preliminary action), the system avoids time-consuming iterative adjustments during production, thus reducing overall manufacturing time while maintaining customization capability
Solution Approach 2:
The patent replaces traditional mechanical moulding processes with digital computer-aided generation and calculation systems. Instead of using physical moulds and manual measurement methods, the system uses software algorithms to calculate optimal handle dimensions and generate digital models, which can then be manufactured more efficiently, significantly reducing the number of steps and time required
2Manufacturing precision
If user hand printing methods are used for customization, then the handle fits the user's hand perfectly, but the user must contact and press deformable material which is not user-friendly
Solution Approach 1:
The patent uses digital copying of hand measurement data instead of physical contact with deformable materials. The system creates a digital model or copy of the user's hand dimensions through non-contact measurement methods, then uses this digital copy to generate the handle design, eliminating the need for users to physically press or mold deformable materials while maintaining precise fit
Solution Approach 2:
The patent substitutes the mechanical process of pressing deformable materials with digital calculation and model generation. Instead of requiring users to physically interact with moulding compounds, the system uses computer algorithms to calculate optimal handle dimensions based on provided measurements, dramatically simplifying user involvement while preserving manufacturing precision
3Productivity
If pre-manufactured handle cores are used, then the manufacturing process is fast and efficient, but the handles cannot be customized to individual user dimensions
Solution Approach 1:
The patent maintains a library of pre-manufactured handle cores with varying dimensions and uses computer-aided calculation to select the optimal pre-manufactured core that matches the user's hand measurements. By changing the selection criteria and matching parameters rather than completely custom-manufacturing each handle, the system achieves both fast processing (using existing inventory) and customization (selecting the best fit), resolving the contradiction between productivity and adaptability
Data Source
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AI summary
Method of manufacturing a handle core for a hand luggage, comprising the steps of: - providing at least one dimension of a user's hand, - generating a handle core model, based on said at least one provided dimension, - manufacturing a hand luggage handle core, according to the handle core model.