Supported Lug Nut Tool for Perpendicular Wheel Alignment
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Solution Overview
Problem
Existing tools for loosening lug nuts often slip off due to being non-perpendicular to the wheel, leading to reduced effectiveness and potential damage, and they are not easily storable or adaptable for use with various wrenches and vehicles.
Innovation Solution
A lug nut engaging tool with a shaft having multiple shaft support sections of different diameters and a turning interface, supported by a base with a height adjustment mechanism, ensuring the tool remains substantially perpendicular to the wheel, compatible with various wrenches and jacks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a standard lug wrench is used to loosen lug nuts tightened by an impact wrench, then the tool can be used, but the tool often slips off because it cannot remain perpendicular to the wheel
Solution Approach 1:
The patent introduces a vertical support dimension by positioning a support structure (such as a jack stand or floor jack) underneath the lug wrench shaft. This support provides a third dimension of stability, preventing the wrench from slipping sideways while allowing the user to apply rotational force. The support structure includes a platform that contacts the shaft at a specific point, creating a stable triangular configuration with the wheel and ground.
2Adaptability or versatility
If a device with an upstanding rodlike member and collar is used to loosen lug nuts, then the tool can engage the lug nut at the correct height, but the device requires a specific stand which reduces its usefulness if the stand is unavailable
Solution Approach 1:
The patent makes the lug wrench universally applicable by designing it to work with multiple types of support structures. The shaft can be supported by jack stands, floor jacks, or even improvised supports like blocks or stones. The collar mechanism can be adjusted to different heights to accommodate various lug nut positions on different vehicles. This multi-functionality eliminates the need for a proprietary stand system.
Solution Approach 2:
The patent incorporates adjustable elements that allow the device to adapt to different conditions. The collar can be moved along the shaft to change the engagement height, and the support structure can be positioned at different locations. This dynamic adjustability enables the same basic device to work across various vehicle types and lug nut configurations without requiring multiple specialized tools.
3Strength
If lug nuts on large trucks are tightened, then they secure the heavy load, but they become difficult to remove which increases maintenance difficulty and cost
Solution Approach 1:
The patent applies preliminary action by using the support structure to stabilize the wrench before applying significant rotational force. The support structure is positioned and adjusted to bear the weight and stabilize the tool shaft before the user attempts to break loose the tightly secured lug nuts. This preliminary stabilization prevents tool slippage and allows the user to apply maximum force effectively.
Solution Approach 2:
The support structure acts as an intermediary between the user and the lug nut. Instead of the user directly applying force to the wrench handle, the support structure provides a stable base that amplifies the user's effort. The platform on the support structure contacts the wrench shaft, creating a lever system that multiplies the turning force applied by the user, making it easier to overcome the high friction of tightly secured truck lug nuts.
Data Source
AI summary
A lug not engaging tool in the form of a rod includes a first end for receiving a standard socket, and a second end for engaging a socket wrench or impact wrench. An intermediate portion has a hexagonal section for engaging an open end wrench or a closed end box wrench. The rod includes sections having differing diameters. In use, a jack or jack stand may be placed under a section having an appropriate diameter to ensure that the jack or jack stand supports the lug nut engaging tool in a position that is substantially perpendicular to the wheel as the tool is used to loosen or tighten a lug nut.