Telescopic Site Light Arm for Uneven Terrain Illumination
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Solution Overview
Problem
Existing mobile light systems struggle to effectively illuminate remote construction sites with uneven terrain and lack of external power sources, limiting their adaptability and functionality.
Innovation Solution
A site light with a telescopic arm assembly, adjustable leg assemblies, and a power system that includes a drive mechanism with a crank arm to extend or retract the arm length, allowing for stable positioning and power transmission, along with a cooling system to regulate temperature.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the arm length is made adjustable to reach remote areas, then the illumination coverage area is improved, but the device complexity increases due to the need for telescopic mechanisms and drive systems
Solution Approach 1:
The arm assembly is designed with telescopic capability, allowing it to dynamically change length between retracted and extended positions. This enables the light system to reach remote areas for illumination while maintaining a compact form when not in use, resolving the contradiction between coverage area and device complexity
Solution Approach 2:
The arm assembly is divided into multiple telescopic sections that can extend and retract independently. This segmentation allows the arm to achieve greater extended length without proportionally increasing the retracted size, thereby improving illumination coverage while controlling device complexity
2Stability of the object's composition
If leg assemblies are added to provide stable support on uneven terrain, then the stability is improved, but the device complexity increases due to additional mechanical components
Solution Approach 1:
The leg assemblies are designed to be deployable and adjustable, allowing them to extend from a retracted position to a deployed position that provides stable support on uneven terrain. This dynamic capability improves stability while maintaining a compact configuration that minimizes complexity when legs are not needed
Solution Approach 2:
The leg assemblies serve multiple functions: providing stable support on uneven terrain, enabling the body to be positioned at various heights, and potentially serving as mounting points for additional equipment. This multi-functionality justifies the added complexity by delivering multiple benefits from a single structural addition
3Ease of operation
If the crank arm is made rotatable in both directions for arm adjustment, then the ease of operation is improved, but the reliability decreases due to potential backward movement or unintended arm length changes
Solution Approach 1:
The crank arm mechanism incorporates a ratchet system that allows bidirectional rotation during operation for ease of adjustment, but automatically locks in one direction to prevent unintended movement. This dynamic locking mechanism maintains both ease of operation and reliability by controlling when bidirectional movement is permitted
Solution Approach 2:
The ratchet mechanism provides mechanical feedback through audible clicks and tactile resistance, confirming to the operator that the crank arm has engaged the locking position. This feedback ensures the arm length remains stable after adjustment, resolving the reliability concern while maintaining ease of operation
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 site light provides adaptable illumination and stable support on uneven terrain, ensuring consistent lighting and temperature regulation, enhancing usability in challenging environments.
Implementation Method 1
an idle wheel mounted for rotation with respect to the body, and a biasing member configured to bias the idle wheel toward the drive wheel... the cable is positioned between and engaged by both the drive wheel and the idle wheel
Data Source
AI summary
A site light including a body, a handle assembly coupled to the body and including one or more handle portions, an arm having a first end fixedly coupled to the body and a second end opposite the first end to define an arm length therebetween, where the second end of the arm is movable relative to the body to adjust the arm length. The site light also includes a light assembly coupled to and movable together with the second end of the arm relative to the body where the arm defines an arm axis, and where the handle assembly surrounds the arm axis.