Anti-slip Torque Tool with Segmented Engagement Teeth
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Solution Overview
Problem
Existing torque tools often experience slippage when used with fasteners due to wear, corrosion, or damage, leading to inefficient torque transfer and potential damage to fasteners.
Innovation Solution
The anti-slip torque tool features integrated grooves and sets of teeth on its lateral surfaces, which provide additional biting points on the fastener head, ensuring efficient torque transfer regardless of wear or damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional torque tools are used with fasteners, then the tool can apply torque to the fastener, but slippage occurs due to wear, corrosion, or damage to the fastener head
Solution Approach 1:
The engagement surface of the torque tool is segmented into multiple discrete teeth rather than a continuous smooth surface. These teeth are distributed across the engagement surface to provide multiple contact points with the fastener head, ensuring that torque is transferred through several localized gripping points simultaneously, which prevents slippage even when some contact areas are worn or damaged.
Solution Approach 2:
The engagement surface features localized teeth with specific geometric properties (angle, depth, spacing) optimized for biting into the fastener head material. Each tooth is designed with a specific profile that concentrates force at its leading edge to penetrate and grip the fastener head surface, providing enhanced local gripping quality rather than uniform distributed contact.
2Productivity
If the tool uses a smooth engagement surface, then the design is simple, but torque transfer efficiency decreases due to slippage
Solution Approach 1:
The engagement surface is divided into multiple discrete teeth elements rather than remaining as a smooth continuous surface. This segmentation creates multiple independent contact zones that can simultaneously engage the fastener head, dramatically improving torque transfer efficiency by preventing slippage while adding only moderate structural complexity.
Solution Approach 2:
The teeth on the engagement surface are designed to dynamically adapt to the fastener head surface during engagement. As torque is applied, the teeth naturally conform to the actual contact points on the fastener head, optimizing the engagement geometry in real-time to maintain maximum torque transfer efficiency regardless of variations in fastener head condition.
3Reliability
If the tool is designed to grip the fastener head firmly, then slippage is reduced, but the risk of damaging the fastener head increases
Solution Approach 1:
The gripping action is localized to specific tooth contact points rather than distributed across the entire engagement surface. Each tooth is designed with optimized geometry that concentrates gripping force at its leading edge to penetrate and grip the fastener head, while the spaces between teeth allow material displacement and reduce overall stress on the fastener head, preventing damage while maintaining secure grip.
Solution Approach 2:
The tooth geometry parameters (angle, depth, spacing, curvature) are specifically optimized to balance gripping force and material stress. The teeth are designed with angles and profiles that allow them to bite into and grip the fastener head firmly for reliable torque transfer, while simultaneously controlling the stress distribution to prevent excessive force concentration that would cause fastener head damage or stripping.
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 solution significantly reduces slippage and enhances torque transfer efficiency, eliminating the need for bolt extractors and minimizing the risk of damaging fasteners.
Implementation Method 1
The anti-slip torque tool features integrated grooves and sets of teeth on its lateral surfaces, which provide additional biting points on the fastener head, ensuring efficient torque transfer regardless of wear or damage.
Data Source
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AI summary
An anti-slip torque tool with integrated engagement features includes a torque-tool body, at least one pair of diametrically opposing engagement features, and an intermediate feature. The pair of diametrically opposing engagement features includes a first opposing feature and a second opposing feature and functions as engagement features around the head portion of the fastener that needs to be removed. The first opposing feature and the second opposing feature are radially distributed around a rotational axis of the torque-tool body. The first opposing feature and the second opposing feature are terminally connected to each other by the intermediate feature. The torque-tool body is outwardly extended from the first opposing feature, the second opposing feature, and the intermediate feature thus delineating an opening to receive the head portion of the fastener.