T-Handle Wrench Adjustable Jaws Bolt Size Adaptability
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Solution Overview
Problem
Conventional ratchet wrenches are limited in their ability to accommodate a range of bolt head sizes due to a fixed socket and grip mechanism, which restricts their versatility in handling different sized objects.
Innovation Solution
A T-Handle wrench with a shaped handle, operatively attached jaws, and a sleeve member that moves between retracted and extended positions via a push button assembly, allowing the jaws to rotate and adjust to fit various sizes of bolt heads through a tapered surface interaction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed socket is used in conventional ratchet wrenches, then the structure is simple, but the wrench can only accommodate a single sized bolt head, reducing versatility
Solution Approach 1:
The jaws are made movable rather than fixed, allowing them to rotate between retracted and extended positions. This dynamic mechanism enables the wrench to adapt to different bolt head sizes while maintaining a relatively simple overall structure through controlled movement of key components.
Solution Approach 2:
The adjustable jaw mechanism allows a single wrench to perform multiple functions by accommodating various bolt head sizes. The jaws can be positioned in different states (retracted, extended, intermediate) to engage with different sized fasteners, making the tool universal rather than size-specific.
2Adaptability or versatility
If a fixed grip mechanism is used, then the device is simple to operate, but it cannot adjust to fit various sizes of bolt heads
Solution Approach 1:
The grip mechanism transitions from a fixed state to a dynamic adjustable state, where the jaws can rotate on pin members to achieve different engagement positions. This allows adaptation to various bolt head sizes while maintaining operational simplicity through intuitive movement.
Solution Approach 2:
The tapered surface interaction with the sleeve member creates a self-adjusting mechanism where the jaws naturally move to the appropriate position based on the bolt head size, reducing the need for complex control systems or multiple adjustment steps.
3Strength
If the jaws are in a retracted position, then the wrench has compact dimensions, but it cannot securely grip the bolt head
Solution Approach 1:
The jaws are designed to be movable between retracted and extended positions, allowing the wrench to switch between a compact storage state and a functional gripping state. This dynamic extension provides the necessary grip strength while maintaining compact dimensions when not in use.
Solution Approach 2:
The jaws extend in a radial direction from the handle body rather than increasing the overall length of the wrench. This dimensional approach allows the gripping surfaces to reach outward to engage bolt heads without significantly increasing the wrench's compact profile when jaws are retracted.
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 the T-Handle wrench to securely grip and apply torque to a range of bolt head sizes by moving jaws between retracted and extended positions, enhancing versatility and adaptability compared to conventional ratchet wrenches.
Implementation Method 1
each jaw has an upper portion attached to the T-shaped body via a pin and a lower portion that includes a tapered surface. Additionally, the wrench includes a sleeve member disposed around the jaws, wherein the sleeve member has an inner surface that interacts with the tapered surface of the lower portion of each jaw when the sleeve member moves relative to the jaws.
Data Source
AI summary
The present invention generally relates to a T-Handle wrench. In one aspect, a wrench is provided that includes a shaped handle. The wrench further includes a plurality of jaws operatively attached to the handle. The wrench also includes a sleeve member disposed around the jaws. Additionally, the wrench includes a push button assembly configured to move the sleeve member relative to the jaws, wherein the movement of the sleeve member causes the jaws to move between a retracted position and an extended position. In another aspect, a method of operating a wrench is provided.