Self-Leveling Light Source with Gravity Pivot for Tilted Luggage
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Solution Overview
Problem
Conventional flashlights attached to luggage or wheeled objects require frequent readjustment as the object tilts, leading to inconsistent light direction, making it impractical for hands-free use while navigating or carrying items.
Innovation Solution
A self-leveling lighting apparatus with a pivot mechanism, either using gravity or an orientation sensor, ensures the light source remains oriented in a desired direction, such as horizontal, regardless of the object's tilt, incorporating a liquid leveling mechanism or mechanical counterweights to maintain consistent illumination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a conventional flashlight is attached to luggage or wheeled objects, then hands-free operation is achieved, but the light direction becomes inconsistent and requires frequent readjustment as the object tilts
Solution Approach 1:
The patent employs a counterweight mechanism where a weight is suspended from the light source assembly, creating a pendulum effect. As the luggage tilts, gravity causes the counterweight to swing and trigger a switch that activates the leveling motor, which rotates the light source to maintain a horizontal orientation. This counterweight-based detection and correction system ensures consistent light direction regardless of luggage tilt angle.
Solution Approach 2:
The patent implements a feedback control system using a tilt sensor (such as a liquid level sensor or accelerometer) that continuously monitors the orientation of the light source. When the sensor detects that the light source is not in the desired horizontal position, it sends a signal to the control circuit, which then activates the leveling motor to adjust the light source orientation. This closed-loop feedback ensures the light direction remains consistent even as the luggage moves and tilts.
2Ease of operation
If a flashlight is mounted to objects for hands-free use, then convenience is improved, but the device complexity increases due to mounting mechanisms and adjustment requirements
Solution Approach 1:
The patent designs the lighting apparatus with a universal mounting interface that can be attached to various objects such as luggage, strollers, or bicycle racks using simple adhesive or clamp mechanisms. The same basic structure (light source, battery, leveling mechanism) serves multiple functions: illumination, automatic leveling, and versatile mounting, eliminating the need for different specialized devices for different applications.
Solution Approach 2:
The patent implements self-leveling functionality where the apparatus automatically detects its own tilt and corrects the light source orientation without user intervention. The tilt sensor, control circuit, and motor work together to automatically maintain horizontal light direction, eliminating the need for manual adjustment mechanisms and reducing the complexity of user-operated controls.
3Reliability
If a leveling mechanism is added to maintain light orientation, then light direction consistency is improved, but the device complexity and weight increase
Solution Approach 1:
The patent replaces complex mechanical leveling mechanisms (such as bubble levels with manual adjustment knobs or gear systems) with an electromagnetic motor-driven system controlled by electronic sensors and circuits. The tilt sensor provides electrical signals that control a small DC motor, which rotates the light source assembly via a simple gear reduction mechanism. This electromechanical system is more compact, easier to control precisely, and requires fewer mechanical parts than traditional mechanical leveling systems.
Solution Approach 2:
The patent utilizes a liquid-level sensing mechanism (involving conductive liquid or electrolyte) to detect tilt orientation. The liquid level sensor changes electrical conductivity based on the liquid's position relative to electrodes, providing a simple and reliable tilt detection method without requiring complex mechanical linkages or optical sensors. This hydraulic-based sensing approach is compact and cost-effective.
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 lighting apparatus provides a hands-free, consistently oriented light source that remains horizontal or angled as needed, enhancing visibility and safety by maintaining a stable light direction even when the object is tilted, addressing the impracticality of conventional flashlight attachment.
Implementation Method 1
a mechanism that allows the light source to rotate about the pivot to maintain a desired orientation... a liquid leveling mechanism or mechanical counterweights to maintain consistent illumination
Data Source
AI summary
A lighting apparatus having a light source and a leveling mechanism capable of maintaining the light source in a desired orientation is described. The lighting apparatus may have a pivot mechanism about which the light source is capable of rotating such that the lighting apparatus maintains the desired orientation. In specific embodiments, the lighting apparatus comprises a directional light source, a pivot mechanism, a connector capable of connecting the pivot to another object, and a mechanism that allows the light source to rotate about the pivot to maintain a desired orientation. The lighting apparatus may be connected to an object, such as a piece of wheeled luggage, such that when the luggage is tilted the light source maintains an desired orientation such as a horizontal orientation.