Interchangeable Tool Joint with Tapered Threaded Load Transfer
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Solution Overview
Problem
Existing tools are bulky, heavy, and require specialized transport, leading to inefficiencies and potential damage during transport and use, especially for contractors performing diverse tasks.
Innovation Solution
A two-part tool design with a handle and interchangeable implement featuring a male and female portion with reducing tapers and shoulders, allowing for easy assembly and disassembly, and threaded portions to distribute and absorb loads, enhancing structural strength and preventing damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If tools are made as complete, ready-to-use units, then they provide full functionality and structural strength, but they become bulky, heavy, and difficult to transport
Solution Approach 1:
The tool is divided into separate components: a handle and an implement, connected through a male-female interface with reducing tapers and shoulders. This segmentation allows the tool to be transported in smaller, lighter parts while maintaining full functionality when assembled.
Solution Approach 2:
The handle with its standardized male-female connection interface can work with multiple different implements, creating a universal tool system. This allows one handle to perform multiple functions by attaching different implements, reducing the total weight and number of tools needed.
2Weight of moving object
If tools are separated into multiple parts for easier transport, then weight and transport difficulty are reduced, but the structural strength and reliability of the connection may be compromised
Solution Approach 1:
The connection interface features local quality variations through reducing tapers and shoulders at specific locations. The reducing taper provides gradual load distribution while the shoulder provides a stopping point and additional structural support, ensuring reliable connection without requiring the entire tool to be overly robust.
Solution Approach 2:
The connection interface combines different geometric features (tapered sections, threaded portions, shoulders) into a composite structural design that distributes and absorbs various types of loads, enhancing overall connection strength and reliability.
3Strength
If longer tools are shipped as complete units, then they maintain their structural integrity, but shipping costs increase significantly and require specialized transport
Solution Approach 1:
By separating the tool into handle and implement components that can be independently packaged, the overall shipping dimensions are reduced, allowing standard courier packages to be used instead of expensive pallet shipping, while maintaining structural integrity through proper design of the connection interface.
4Adaptability or versatility
If a single tool is designed to handle multiple tasks, then the number of tools needed is reduced, but the complexity of the tool design increases
Solution Approach 1:
The standardized male-female connection interface with reducing tapers and shoulders creates a universal system where one handle can accommodate multiple different implements. The complexity is localized to the connection interface design, while the overall system remains simple and intuitive to use.
Data Source
AI summary
A tool comprising a handle and an implement. The handle comprises an elongate portion having a first end and a second end, and the implement, removably attachable to the handle, comprises an elongate portion at a first end and a tool portion at a second end. In an embodiment of the invention, the handle has, at the first end, a male portion comprising a reducing taper extending from the elongate portion and terminating in a shoulder, and a threaded portion extending from the shoulder and having a cross sectional area lesser than that of the shoulder. In the same embodiment, the implement has, at the first end, a female portion comprising a reducing taper extending inwardly from the first end, a shoulder portion extending from the taper, and a threaded portion extending further inward from the shoulder.