Site Light Telescopic Arm and Leg Locking Mechanism

Solution Overview

Problem

Current mobile light systems for construction sites face challenges in adapting to uneven terrain, lack of external power sources, and limited adjustability, which restrict their effectiveness in providing reliable illumination.

Innovation Solution

A site light system with an adjustable telescopic arm mechanism, a damper assembly, and independent leg assemblies that can be locked into various positions, allowing for customizable height and stability, along with a power system that includes a rechargeable battery and multiple light modes for varying illumination needs.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a mobile light system is designed with fixed arm length and basic stability features, then the device complexity is low, but the adaptability to uneven terrain and limited adjustability worsen

Engineering Contradiction:
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent implements a telescopic arm assembly with adjustable length that can be extended and retracted based on terrain requirements. The arm includes multiple sections that can be telescopically adjusted to accommodate uneven ground conditions while maintaining system stability.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The leg assembly is divided into multiple segments with independent lockable sections. Each leg can be independently adjusted and locked at different positions, allowing the system to adapt to uneven terrain by compensating for ground variations through individual leg positioning.

Inventive Principle:
Principle #1Segmentation

2Adaptability or versatility

If the arm length is made adjustable to improve adaptability, then the adaptability improves, but the device complexity increases

Engineering Contradiction:
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The telescopic arm assembly incorporates a dynamic length adjustment mechanism with lockable positions that allow the arm to be extended or retracted as needed. This provides variable arm length to reach different working positions while maintaining structural integrity through the locking mechanism.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The telescopic arm uses a nested tube structure where inner tubes slide within outer tubes to achieve length adjustment. This nesting arrangement allows compact storage when retracted and extended configuration when needed, reducing overall complexity compared to alternative extension mechanisms.

Inventive Principle:
Principle #7Nested doll (Nesting)

3Stability of the object's composition

If a damper assembly is added to control arm movement, then the stability improves, but the device complexity increases

Engineering Contradiction:
Core Design Contradiction:
Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The damper assembly acts as an intermediary element between the telescopic arm sections, providing controlled resistance to movement. This mediator component dampens oscillations and stabilizes the arm during operation without requiring complex active control systems.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The damper assembly utilizes pneumatic or hydraulic principles to provide friction-based resistance to arm movement. This passive damping mechanism stabilizes the arm by dissipating kinetic energy through fluid resistance, eliminating the need for active stabilization systems.

Inventive Principle:
Principle #29Pneumatics and hydraulics

4Stability of the object's composition

If independent leg assemblies with lock mechanisms are implemented, then the stability on uneven terrain improves, but the device complexity increases

Engineering Contradiction:
Core Design Contradiction:
Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The leg assembly is segmented into multiple adjustable sections with independent lock mechanisms. Each leg can be independently positioned and locked to compensate for uneven ground conditions, allowing the system to adapt to terrain variations while maintaining overall stability.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The leg assemblies incorporate dynamic adjustment capabilities with lockable positions that allow the legs to be extended or retracted based on terrain requirements. This provides stable positioning on uneven ground while maintaining the ability to reconfigure for different working conditions.

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

The system provides reliable and adjustable illumination on uneven terrain, with the ability to output high lumens for extended periods, ensuring effective lighting in remote construction areas without external power sources.

Implementation Method 1

a one-way bearing coupled to both the shaft and the clutch assembly such that the one-way bearing transmits force between the shaft and the clutch assembly when the shaft is rotated in a first direction, and where the one-way bearing does not transmit force between the shaft and the clutch assembly when the shaft is rotated in a second direction different than the first direction

Methodology Applied
Scientific EffectOne-way bearing: Ratchet

Implementation Method 2

a damper assembly in operable communication with the drive mechanism, where the damper assembly resists rotation of the drive mechanism when the crank arm rotates in the second direction, and where the damper assembly does not resist the rotation of the drive mechanism when the crank arm rotates in the first direction

Methodology Applied
Scientific EffectDamper: Damping

Data Source

PatentUS20240219008A1Site light
Publication Date: 2024.07.04
  • US20240219008A1 patent drawing
  • US20240219008A1 patent drawing
  • US20240219008A1 patent drawing

AI summary

A site light including a body, a telescopic arm assembly coupled to the body, a light assembly coupled to the telescopic arm and movable with respect to the body, and a leg assembly coupled to the body and including a contact surface. Where the leg assembly is adjustable between a stowed position and one or more deployed positions, where the leg assembly includes a first lock mechanism configured to selectively secure the leg assembly in a respective one of the one or more deployed positions, and a second lock mechanism configured to selectively secure the leg assembly in the stowed position. Where the second lock mechanism is disengaged when the leg assembly is in the one or more deployed positions, and where the first lock mechanism is disengaged when the leg assembly is in the stowed position.