Under-Chassis Light With Magnetic Mounting and Adjustable Arm

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Solution Overview

Problem

Existing vehicle lights lack flexibility and ease of attachment to ferromagnetic surfaces, making them difficult to position and secure in hard-to-reach areas.

Innovation Solution

A light assembly with a magnetic coupling member, adjustable arm, and pivot joints that allows removably coupling to ferromagnetic surfaces, enabling adjustable positioning and secure attachment using magnets or clamps.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If existing vehicle lights are used, then the lighting function is provided, but the flexibility and ease of attachment to ferromagnetic surfaces is poor

Engineering Contradiction:

Improveease of attachmentVSAvoidflexibility

Core Design Contradiction:

Ease of operationVSAdaptability or versatility

Solution Approach 1:

The patent replaces traditional mechanical attachment systems (screws, clips, adhesives) with a magnetic attachment system. The magnetic coupling member contains magnets that attract to ferromagnetic surfaces, enabling tool-free, reversible attachment and detachment of the light assembly, thereby dramatically improving ease of operation and flexibility.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The magnetic coupling member provides universal attachment capability to any ferromagnetic surface (vehicle chassis, engine components, etc.), making the light assembly adaptable to multiple locations and applications without requiring different mounting hardware for different surfaces.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If existing vehicle lights are used, then the lighting function is provided, but the positioning capability in hard-to-reach areas is difficult

Engineering Contradiction:

Improvepositioning capabilityVSAvoidease of positioning

Core Design Contradiction:

Adaptability or versatilityVSEase of operation

Solution Approach 1:

The patent incorporates an adjustable arm with pivot joints that allow dynamic repositioning of the light head. The arm can be extended, retracted, and angled at multiple positions, enabling the light to reach hard-to-illuminate areas while maintaining ease of adjustment through simple manual manipulation of the pivot mechanisms.

Inventive Principle:

Principle #15Dynamics

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

Facilitates easy and secure attachment of vehicle lights to various ferromagnetic surfaces, allowing flexible positioning and illumination of hard-to-reach areas.

Implementation Method 1

The magnetic coupling member is configured to support the light assembly by magnetic attraction to the support surface

Methodology Applied

Scientific EffectMagnetic attraction: Magnetism

Data Source

PatentUS20250314372A1Under chassis light

Publication Date: 2025.10.09 MILWAUKEE ELECTRIC TOOL CORP

AI summary

A light assembly includes a base having an attachment portion and having a battery receptacle extending outwardly from the attachment portion and configured to removably receive a battery. The attachment portion includes a flat surface configured to be positioned adjacent a ferromagnetic support surface and a magnetic coupling member adjacent the flat surface to magnetically attract the base to the ferromagnetic support surface. The light assembly includes an arm movably coupled to the attachment portion of the base. The light assembly includes a light head movably coupled to the arm such that a position of the light head relative to the base is adjustable.