Stabilized Movable Lift Base With Extendable Legs for Uneven Ground
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Solution Overview
Problem
Conventional lift devices, such as ladders and powered lifters, face issues with stability, especially on uneven surfaces and in personal applications, where they are either too large or complex for effective use.
Innovation Solution
An elevating lift with a stabilized movable base featuring extendable legs and casters, allowing for adjustable stability and transport, along with optional rotational freedom, to provide a robust and simple lift system suitable for personal use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a ladder is used for reaching elevated areas, then the user can access hard-to-reach places, but the stability is compromised on uneven ground surfaces
Solution Approach 1:
The lift device incorporates extendable and retractable legs that can dynamically adjust their length and position. When deployed, the legs extend to provide a wide, stable base on uneven surfaces. During transport, the legs retract to minimize the device's footprint. This dynamic adaptation allows the device to maintain stability in both operational and transport states.
Solution Approach 2:
The device changes its geometric parameters (leg length, base width) based on operational requirements. The legs can be extended to increase the support base area for stability during use, or retracted to reduce the overall dimensions for easy storage and transport. This parameter adjustment resolves the contradiction between stability and portability.
2Strength
If powered lifters with large base and complex scissor lift system are used, then heavy duty applications are supported, but the device size and complexity increase making it unsuitable for personal use
Solution Approach 1:
The lift mechanism is segmented into multiple telescoping sections that can extend and retract independently. This segmentation allows the device to achieve significant height extension while maintaining a compact form when retracted. The segmented structure distributes the mechanical loads across multiple sections, enabling heavy duty capability without requiring a single complex scissor mechanism.
Solution Approach 2:
The telescoping sections are nested within each other, with smaller sections contained inside larger ones. This nesting arrangement allows the lift device to collapse to a minimal height for storage and transport, while still providing extended reach capability when deployed. The nested structure simplifies the overall mechanism compared to traditional scissor lifts while maintaining load-bearing capacity.
3Length of moving object
If a telescoping cage assembly is used for elevation, then vertical reach is improved, but structural integrity may be lost over time
Solution Approach 1:
The telescoping cage assembly is constructed using composite materials that combine high strength-to-weight ratio properties. This allows the structure to maintain adequate structural integrity while achieving the necessary vertical reach. The composite construction provides both the length required for elevated access and the durability needed for reliable long-term use.
Data Source
AI summary
The elevating lift with a stabilized movable base includes a base with extendable legs that provide minimum to maximum adjustable stability during use and transport. A lift system is mounted on the base, and a platform assembly is mounted on top of the lift system for selective raising or lowering. Each extendable leg supports a caster, rendering the base movable, and selective extension and retraction of the legs adjusts the stability of the lift. The plurality of legs can be further driven to simultaneously rotate about the vertical axis to steer the lift. The stabilized movable base is further alternatively used in combination with a stool, providing minimum to maximum stability during use and transport of seating, and multiple elevating lifts may be used to support linked platform assemblies in various configurations.