Tri-Fold Liftgate Platform for Large Cargo and Compact Storage
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Solution Overview
Problem
Conventional liftgates have limited cargo handling capacity due to the dimensions of their load platforms, which restrict the size of cargo that can be handled, and struggle to fold and store the platform without interfering with the vehicle's cargo section.
Innovation Solution
A liftgate with a tri-fold load platform that includes a proximal, center, and distal deck section, pivotally coupled to allow movement between an extended-operational position for supporting cargo and a retracted-stored position, where the sections are folded parallel and adjacent, enabling self-supporting operation without external structures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of moving object
If the load platform is made larger to handle bigger cargo, then cargo handling capacity is improved, but the ability to retract and store the platform without interfering with the vehicle's cargo section deteriorates
Solution Approach 1:
The load platform is divided into three separate deck sections (proximal, center, and distal) that can be independently folded relative to one another. This segmentation allows the platform to be collapsed into a compact configuration for storage while maintaining a large extended area for cargo handling, directly resolving the contradiction between platform size and storability.
Solution Approach 2:
The tri-fold mechanism transforms the platform from a two-dimensional flat surface into a three-dimensional folded structure. When retracted, the deck sections are arranged in a stacked configuration utilizing vertical space, allowing the large platform area to be stored within a compact volume that does not interfere with the vehicle's cargo section.
2Area of moving object
If the distal deck section is extended outwardly to increase cargo support area, then cargo handling capability is improved, but the structural complexity and need for external support deteriorates
Solution Approach 1:
The distal deck section is designed to be self-supporting through its cantilevered configuration and rigid construction. The section supports its own weight and the cargo load without requiring external support structures such as ground surfaces or loading docks, eliminating the need for additional support mechanisms while maintaining extended cargo support capability.
Solution Approach 2:
By dividing the platform into modular deck sections with the distal section designed as a self-supporting cantilever, the structure achieves extended reach without requiring complex external support systems. Each section is engineered to bear its portion of the load independently, simplifying the overall support structure.
Data Source
AI summary
A liftgate in accordance with the present disclosure includes a lift mechanism and a moveable load platform. The load platform includes a proximal deck section, a distal deck section, and a center deck section positioned between the proximal deck section and the distal deck section. The load platform is selectively vertically movable between a lowered position and a raised position. The proximal deck section, center deck section, and distal deck section are pivotally coupled to one another such that the load platform is selectively moveable between an extended-operational position, wherein all of the deck sections are located substantially coplanar with one another for supporting cargo, and a retracted-stored position wherein the deck sections are folded with respect to one another and are located substantially parallel and adjacent to one another.