Nested Tubing Length Extension Assembly for Hand Tools
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Solution Overview
Problem
Existing hand tool extension solutions require multiple tools for varying lengths, taking up significant storage space and being less effective in reaching remote locations.
Innovation Solution
A modular length extension assembly comprising multiple extension tubings and bars with resiliently biased locking members, allowing for various length combinations and easy connection to hand tools, while being collapsible for minimal storage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple separate extension tools are provided for various lengths, then the ability to reach remote locations is improved, but the storage space required increases significantly
Solution Approach 1:
The extension assembly uses nested tubings where smaller diameter tubings can be inserted into larger diameter tubings, allowing multiple extension lengths to be stored within a compact nested configuration. This eliminates the need for multiple separate extension tools while providing various length options.
Solution Approach 2:
The extension system is divided into modular segments including multiple tubings of different diameters and multiple bars that can be selectively combined. This segmentation allows the user to assemble different length combinations from a single set of components, providing versatility without requiring multiple complete extension tools.
2Volume of moving object
If a single extension tool is used for all lengths, then storage space is reduced, but the ability to precisely reach specific remote locations deteriorates
Solution Approach 1:
The extension assembly allows dynamic adjustment of length by selectively inserting bars to different positions within the nested tubings and locking them at various locations. This dynamic configurability enables precise length selection for specific remote locations while maintaining compact storage when collapsed.
3Adaptability or versatility
If multiple separate extension tools are provided, then various length requirements are met, but the device complexity and number of components increases
Solution Approach 1:
The nested tubings and bars serve multiple functions: they provide structural support, enable length adjustment, and allow selective combination for different extension requirements. This multi-functionality reduces the need for separate specialized tools while maintaining the ability to meet various length requirements.
4Adaptability or versatility
If a modular extension assembly with multiple components is used, then various length combinations are achieved, but the connection and assembly time increases
Solution Approach 1:
The locking mechanism automatically engages when bars are inserted into the nested tubings, eliminating the need for separate fastening operations. This self-locking feature reduces assembly time while maintaining the ability to create various length combinations through selective bar insertion.
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
Enables flexible length adjustments for hand tools, providing a wide range of extension lengths with minimal storage requirements, enhancing accessibility to remote locations without the need for multiple tools.
Implementation Method 1
A locking member is provided in the passageway which is resiliently biased outwardly through one of the holes near the drive end of the tubing
Data Source
AI summary
A length extension assembly for a hand tool comprises at least two elongated extension tubings each having a longitudinal passageway and being of a size and shape that one of the tubings may be selectively inserted into the passageway of the other tubing. The assembly also includes at least two elongated extension bars each of a size and shape that each extension bar may be inserted into an appropriate tubing. The tubings are provided with longitudinally spaced locking holes. Each bar is provided with a locking member which can enter and be engaged in one of the locking holes to connect the bar to its tubing. Optionally, one tubing could be inserted into the larger tubing and a locking member on the smaller tubing could be engaged in a locking hole of the larger tubing to connect the tubings together. Various length selections can be achieved by connecting a bar to at least one tubing or by connecting a bar to one tubing and connecting that tubing to a larger tubing. Additional length adjustment is achieved by the engagement of a locking member in an appropriate locking hole.