Adjustable Tool Extender Telescopic Drive for Hard-to-Reach Fasteners

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Solution Overview

Problem

Existing torque tools, such as screwdrivers and socket wrenches, often lack sufficient length to reach bolts or nuts in hard-to-access areas, and current solutions require a cumbersome set of fixed-length extenders to accommodate varying workspaces.

Innovation Solution

An adjustable tool extender with a telescopic design, featuring a handle and extendable drive with multiple locking positions, allowing the drive to extend and retract to varying lengths, and a reversible mechanism for secure fitting with different tool bits and sockets.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Length of moving object

If fixed-length socket extenders are used to reach hard-to-access areas, then the tool can reach the screw or nut head, but multiple extenders of different lengths are required to accommodate varying workspace sizes

Engineering Contradiction:
Improveextender lengthVSAvoidnumber of extenders required
Core Design Contradiction:
Length of moving objectVSDevice complexity

Solution Approach 1:

The patent applies the dynamics principle by designing an extender with a telescopic mechanism that allows the length to be adjusted dynamically. The inner tube can slide within the outer tube to provide varying lengths, and locking mechanisms (such as cam locks or friction locks) enable the user to secure the extender at different positions. This dynamic adjustment capability eliminates the need for multiple fixed-length extenders, as a single adjustable extender can accommodate various workspace requirements.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent implements parameter changes by allowing the extender length to be variable rather than fixed. The telescopic mechanism enables continuous or discrete adjustment of the extender length parameter, allowing the user to optimize the length for each specific task. This parameter variability resolves the contradiction by providing the needed length adaptability without requiring multiple separate extenders.

Inventive Principle:
Principle #35Parameter changes

2Adaptability or versatility

If multiple fixed-length extenders are carried to accommodate different workspace sizes, then all workspace requirements can be met, but it becomes cumbersome and a hassle to carry so many accessory pieces

Engineering Contradiction:
Improveaccommodation of varying workspace sizesVSAvoidconvenience of carrying accessories
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The patent applies universality by designing a single extender that performs multiple functions through adjustable length. Instead of requiring separate extenders for different length requirements, the adjustable extender can be configured to match various workspace needs, making it a universal solution that replaces multiple specialized tools. This multi-functionality directly addresses the contradiction by maintaining adaptability while reducing the number of accessories to carry.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent merges the functionality of multiple fixed-length extenders into a single adjustable extender unit. The telescopic mechanism combines the length variations of what would otherwise require separate extenders into one integrated device. This merging eliminates the need to carry multiple accessory pieces while preserving the ability to accommodate different workspace sizes.

Inventive Principle:
Principle #5Merging (Combining)

3Length of moving object

If short or extra-long tools are manufactured to fit restricted areas, then the tool can reach the target, but the tool may not be the optimal length for other work areas

Engineering Contradiction:
Improvetool lengthVSAvoidsuitability for varying work areas
Core Design Contradiction:
Length of moving objectVSAdaptability or versatility

Solution Approach 1:

The patent applies dynamics by enabling the tool length to be adjusted based on the specific work area requirements. The telescopic mechanism allows the user to extend or retract the tool to the appropriate length for each task, rather than being constrained to a fixed length. This dynamic adjustability resolves the contradiction by allowing the same tool to be optimally sized for different work areas.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent implements parameter changes by making the tool length variable through the adjustable mechanism. The user can change the length parameter to match the specific requirements of different work areas, whether short for restricted spaces or extended for harder-to-reach areas. This parameter flexibility ensures optimal tool performance across varying work environments.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS9669537B2Adjustable tool extender
Publication Date: 2017.06.06 HARTMAN CHAD
  • US9669537B2 patent drawing
  • US9669537B2 patent drawing

AI summary

An adjustable tool extender comprising an elongated body, where the elongated body is divided between a handle and an extendable drive; an engaging end at a far end of the extendable drive, where the engaging end fits into a tool bit; a receiving end at a far end of the handle, where the receiving end receives a drive on a tool; and a means for locking along the handle, where the means for locking extends the extendable drive a distance from the handle.