Pivotable Wrench Head for Tight Space Access
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Solution Overview
Problem
Conventional wrenches often struggle to maneuver within tight spaces, such as under sinks or close to walls, due to their fixed design, making it difficult to access and turn workpieces like nuts or bolts effectively.
Innovation Solution
The design incorporates pivotable joints that allow the wrench head to move in multiple directions, including towards and away from the user, and includes a built-in screwdriver for combined functionality, enabling efficient use in compact spaces and reducing the need for multiple tools.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional fixed design wrenches are used, then structural simplicity is maintained, but the ability to maneuver in tight spaces deteriorates
Solution Approach 1:
The wrench head is divided into multiple independently pivotable segments connected by pivot joints, allowing each segment to move relative to others. This segmentation enables the wrench to navigate tight spaces and access workpieces from various angles while maintaining a relatively simple overall structure.
Solution Approach 2:
The wrench incorporates pivot joints that allow the head to dynamically adjust its position and orientation. These joints enable the wrench to transition between fixed and movable states, providing adaptability for different working conditions while preserving structural simplicity through standardized joint designs.
2Adaptability or versatility
If multiple separate tools are used, then functional versatility is achieved, but the number of tools to manage increases
Solution Approach 1:
The wrench integrates a screwdriver function into the wrench head assembly, combining two previously separate tools into one. The screwdriver can be positioned and oriented independently via pivot joints, allowing it to access screws in tight spaces while the wrench portion handles nuts and bolts, reducing the total number of tools needed.
Solution Approach 2:
The wrench head is designed to perform multiple functions: acting as both a wrench for nuts and bolts and a screwdriver for screws. The integrated design allows a single tool to replace multiple specialized tools, increasing functional versatility without proportionally increasing complexity.
3Adaptability or versatility
If the wrench head is made rigid for stability, then structural strength is maintained, but the ability to access confined areas deteriorates
Solution Approach 1:
The wrench head uses pivot joints that allow movement during positioning but maintain stability during operation. The joints enable the head to adapt to confined spaces and various angles while providing sufficient rigidity when engaged with workpieces to maintain structural stability.
Solution Approach 2:
The segmented design with pivot joints allows different parts of the wrench head to move independently for access, while the connection points provide stable anchor points. This segmentation enables flexibility in confined spaces while maintaining overall structural integrity through the interconnected rigid segments.
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
This design enhances the ability to access and manipulate workpieces in confined areas, increasing efficiency for plumbers and utility workers by allowing the wrench head to pivot freely and incorporating a screwdriver for added functionality in a single tool.
Implementation Method 1
The adjustable jaw includes a threaded section. The self-adjusting wrench further includes a screw drive including threads and a carriage. The screw drive is engaged with the threaded section of the adjustable jaw.
Implementation Method 2
The pivot axis perpendicular to the longitudinal axis. When the handle is pivoted about the pivot axis, the engagement end of the handle moves the adjustment mechanism such that the adjustable jaw is moved relative to the fixed jaw.
Data Source
AI summary
Various embodiments of a hand tool shown as wrenches are provided. In some embodiments the wrenches include adjustable heads that allow for use within the small spaces such as around plumbing fixtures. Certain embodiments include a head with a fixed jaw and a moveable jaw such that the wrenches may be used with workpieces of various dimensions.