Multi-Size Open-End Wrench Head Design
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing hand-held tools, such as wrenches, require multiple tools to accommodate various fastener sizes, leading to inefficiency and clutter, as they often consist of multiple parts and are not easily adaptable for different tasks.
Innovation Solution
A multiple-use open-end wrench with a single elongated handle featuring a wrenching head that includes multiple graduated opening portions, allowing it to accommodate three different sized fasteners by varying the depth and separation of jaw surfaces, enabling the tool to function as a single unit for various sizes of square and hexagonal fasteners.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple individual wrenches are used to accommodate various fastener sizes, then each wrench can be optimized for its specific size, but the number of tools increases and efficiency decreases
Solution Approach 1:
The wrench head is designed with a single opening that contains multiple graduated opening portions, allowing one wrench to perform the function of multiple wrenches with different sizes. The opening portions are arranged to accommodate different fastener sizes (e.g., 3/8 inch, 7/16 inch, 1/2 inch hexagonal fasteners) within a single tool body,实现多功能性
Solution Approach 2:
The opening in the wrench head is segmented into multiple distinct opening portions, each with specific dimensions tailored for different fastener sizes. This segmentation allows the single opening to effectively function as multiple separate openings would in traditional multi-wrench sets
2Adaptability or versatility
If tools are designed with interchangeable heads and ends, then versatility is improved, but the tool consists of more than one part
Solution Approach 1:
The patent combines multiple opening portions that would traditionally require separate wrench heads into a single integrated opening structure. This merging eliminates the need for interchangeable heads while maintaining the ability to accommodate various fastener sizes, reducing the tool to a single-piece construction
Data Source
AI summary
The invention provides a multiple use open-end wrench with an elongate handle having a proximal end, an opposing distal end and a longitudinal axis extending therebetween, and a first wrenching head arranged at the proximal end of the elongated handle formed with an opening for receiving and turning a plurality of varying sized fasteners. The opening is formed by opposing left and right jaws with opposing parallel left and right jaw surfaces, the opening having a fixed length L in the aggregate that extends from an end tip of the proximal end substantially in parallel with the opposing parallel jaw surfaces.