Multi-directional Driver Bit with Segmented Engagement Cavities
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Solution Overview
Problem
Existing fastener tools often slip or strip when tightening or loosening bolts and nuts due to wear, corrosion, or damage, leading to inefficiency and damage to the fasteners.
Innovation Solution
A multi-grip socket bit with segmented portions that engage the head of the fastener, providing efficient torque transfer and preventing slippage, and featuring a dual-sided design for both clockwise and counterclockwise rotation, compatible with various torque tools.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional driver bit is used, then the tool is simple and easy to manufacture, but it slips or strips on the head portion of fasteners leading to damage
Solution Approach 1:
The driver bit head is divided into multiple segmented portions (first portion, second portion, third portion) that can independently engage with different surfaces of the fastener head. This segmentation allows each portion to apply force at optimal angles, preventing slippage and stripping while maintaining overall structural integrity
Solution Approach 2:
The segmented portions are configured with asymmetric geometries where each portion has different engagement surfaces and angles. This asymmetry enables the driver bit to adapt to various fastener head shapes and conditions, providing reliable engagement without requiring complex adjustable mechanisms
2Reliability
If a multi-directional driver bit with segmented portions is used, then slippage and stripping are prevented, but the device complexity increases
Solution Approach 1:
Multiple functional portions are merged into a single integrated driver bit head structure. The first, second, and third portions are combined in one piece that engages with multiple surfaces of the fastener head simultaneously, providing efficient torque transfer without requiring separate tools or complex assembly mechanisms
3Ease of operation
If bolt extractors are used to remove damaged fasteners, then the fasteners can be removed, but drilling and additional tools are required increasing complexity
Solution Approach 1:
The driver bit is designed with universal applicability to perform multiple functions: tightening intact fasteners, loosening intact fasteners, and extracting damaged fasteners. The segmented portions can engage with various fastener head configurations, eliminating the need for specialized bolt extractors and drilling equipment
Data Source
AI summary
A screw bit body which allows for efficient torque force application onto a socket fastener. The screw bit body includes a plurality of laterally-bracing sidewalls, a first base, and a second base. The laterally-bracing sidewalls are radially distributed about a rotation axis of the screw bit body with each further including a first lateral edge, a second lateral edge, a bracing surface, and an engagement cavity. The engagement cavity creates a gripping point to prevent slippage in between the screw bit body and the socket fastener. The engagement cavity traverses normal and into the concave surface and the convex surface. The engagement cavity includes an angled driving portion and a concave portion. The angled driving portion is positioned adjacent to the first lateral edge with the concave portion being positioned opposite to the first lateral edge, across the angled driving portion.