Collet Fastener Removal Tool for Damaged Anti-Theft Screws
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing methods for removing fasteners, particularly anti-theft screws, are inefficient and damaging to the wheel when the fastener is worn, damaged, or requires a lost key, leading to time-consuming and potentially destructive removal processes.
Innovation Solution
A fastener removal tool featuring a collet with an outer inclined surface and an outer sleeve, where the collet is contracted radially to securely clamp the fastener using threaded sections, allowing efficient removal without damaging the wheel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional removal methods (grinder, socket forcing) are used on damaged or stuck fasteners, then the fastener can be removed, but the wheel is easily damaged and the process is time-consuming
Solution Approach 1:
The removal tool is divided into multiple functional segments: a collet body with external threads, a removable liner with internal threads and a tapered bore, and a separate gripping mechanism. This segmentation allows each component to perform its specific function efficiently while protecting the wheel from damage during the removal process
Solution Approach 2:
The liner acts as an intermediary component between the collet body and the fastener. It provides a precise tapered bore that guides the fastener and distributes clamping forces evenly, preventing wheel damage while enabling effective removal of stuck or damaged fasteners
2Productivity
If traditional removal methods are used on fasteners with worn driving portions, then the fastener can be removed, but numerous steps are required and the process is time-consuming
Solution Approach 1:
The collet mechanism is designed with universal applicability to engage various fastener types including bolts, screws, and nuts with different head configurations. The tapered bore and adjustable gripping surfaces allow the same tool to effectively remove fasteners with worn, damaged, or varied driving portions without requiring multiple specialized tools or complex procedural steps
Solution Approach 2:
The tool performs preliminary engagement and centering actions through the tapered bore before applying full removal force. This preliminary action ensures proper alignment and prevents slippage or further damage to fasteners with worn driving portions, enabling immediate effective removal without repeated attempts or additional steps
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
The tool effectively and efficiently removes fasteners by clamping them securely, reducing damage to the wheel and simplifying the removal process.
Implementation Method 1
the urging portion including a second threaded section, the second threaded section being located in the through hole, the second threaded section being selectively screwed to the first threaded section
Data Source
AI summary
A fastener removal tool is provided, wherein the fastener removal tool includes: a collet including an outer inclined surface, the outer inclined surface including a first threaded section, a first end portion of the collet including an opening; and an outer sleeve including a through hole and an urging portion, the urging portion being located in the through hole, the urging portion including a second threaded section, the second threaded section being located in the through hole, the second threaded section being selectively screwed to the first threaded section, the collet being disposed through the through hole; wherein when the second threaded section is screwed to the first threaded section and the outer sleeve and the collet are relatively rotated, the outer inclined surface is urged and the first end portion of the collet is radially contracted.