Adjustable Wrench Quick-Adjust Jaw Mechanism for Tight Spaces
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Solution Overview
Problem
Existing wrenches are cumbersome and difficult to adjust quickly, especially in tight spaces, limiting their usability in plumbing applications.
Innovation Solution
An adjustable wrench with a quick adjust mechanism, including a trigger and gear rack system, allows for rapid jaw size adjustment and disengagement from fasteners, featuring projections and a pivot joint for enhanced maneuverability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional adjustable wrench mechanisms are used, then jaw adjustment is possible, but the adjustment process is slow and cumbersome
Solution Approach 1:
The wrench employs a dynamic adjustment mechanism where the jaw can quickly transition between positions using a trigger-actuated system. The moveable jaw is coupled to a rack gear that engages with a pinion gear, allowing rapid positional changes when the trigger is actuated, while maintaining stability when locked.
Solution Approach 2:
The adjustment mechanism is divided into discrete segments or notches on the rack gear, allowing the jaw to be positioned at specific intervals. This segmentation enables quick selection of appropriate jaw widths without continuous adjustment, improving both speed and ease of operation.
2Adaptability or versatility
If the wrench is designed for quick adjustment, then usability in tight spaces improves, but device complexity increases
Solution Approach 1:
The quick adjustment mechanism merges the trigger actuation system with the rack and pinion gear system. The trigger directly actuates the pinion gear which engages with the rack, combining the actuation and transmission functions into an integrated mechanism that reduces overall complexity while enabling quick adjustment.
Solution Approach 2:
Instead of requiring the user to manually move the jaw along a threaded or slotted path, the invention inverts the approach by having the trigger actuate a gear system that automatically moves the jaw to the desired position. This reversal of the control sequence simplifies user interaction while maintaining mechanical efficiency.
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
Facilitates easy and quick adjustment of jaw size, enabling efficient use in confined spaces and improved handling of various fastener sizes.
Implementation Method 1
a gear rack extending within the handle. The trigger engages with the gear rack when the trigger is in the locked position
Implementation Method 2
a plurality of projections rigidly coupled to the moveable jaw and extending away from the moveable jaw. The plurality of projections are configured to facilitate a user sliding the moveable jaw with respect to the fixed jaw
Data Source
AI summary
Various embodiments of wrenches are provided. Various embodiments described herein provide an improved mechanism for actuating a moveable jaw with respect to a fixed jaw, thereby facilitating use within confined spaces. Various other embodiments of wrenches described herein can be placed in different configurations to facilitate use within confined spaces.