U-Shaped Hook Spark Plug Boot Puller for Damage-Free Removal
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Solution Overview
Problem
Current spark plug removal technologies are inadequate for modern, more durable spark plugs, as they tend to stick and are difficult to remove without damage, leading to unnecessary replacement of boots and wires.
Innovation Solution
A U-shaped hook spark plug boot puller with a handle, made from a strong material like steel, is designed to insert between the spark plug boot and plug, allowing for safe separation without tearing, and is adjustable to fit various vehicle types.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional removal methods are used on modern durable spark plugs, then the spark plugs can be removed, but the boots and plugs are damaged
Solution Approach 1:
The patent introduces a specialized removal tool as an intermediary device between the technician and the spark plug boot. This tool features a U-shaped hook that engages with the boot's internal structure, allowing controlled extraction without direct manual manipulation that could cause damage. The tool acts as a mediator that translates the removal action into a damage-free process.
Solution Approach 2:
The removal tool is segmented into distinct functional components: a U-shaped hook portion for engaging the boot, a shaft for force transmission, and a handle for user operation. This segmentation allows each component to be optimized for its specific function - the hook geometry is designed to match the boot's internal features, while the handle provides mechanical advantage.
2Productivity
If force is applied to remove stuck spark plug boots, then the boots can be separated, but tearing and damage occur
Solution Approach 1:
The hook is designed with a U-shape curvature that matches the rounded internal geometry of the spark plug boot. This curved geometry allows the hook to engage smoothly with the boot's internal surface without creating stress concentration points that would lead to tearing. The rounded profile distributes applied forces evenly across the boot material.
Solution Approach 2:
The tool changes the physical parameters of the removal process by providing mechanical advantage through its lever arm design. The handle length and shaft configuration transform small user forces into controlled extraction forces, changing the magnitude and distribution of forces applied to the boot-plug interface.
3Loss of substance
If spark plug boots are removed and reused, then costs are reduced, but proper removal tools must be used
Solution Approach 1:
The specialized removal tool serves as an intermediary that enables boot reuse by ensuring damage-free removal. Without this intermediary device, boots would be damaged during removal and require replacement. The tool makes the reuse objective achievable by mediating the removal process.
Solution Approach 2:
The patent promotes the recovery and reuse of spark plug boots instead of discarding them after single use. The removal tool is specifically designed to enable this recovery process by extracting boots in a manner that preserves their integrity for future reuse, thereby reducing material waste and replacement costs.
Data Source
AI summary
An inventive spark plug boot puller removes a spark plug boot from the spark plug on which it is booted, without damaging the spark plug boot. A method for removing a spark plug boot so that the boot can be reused is provided. Kits containing reusable spark plug boots with cooperating spark plug boot puller tools are provided.