Tri-Fold Liftgate Platform for Large Cargo and Clear Rear Access
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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 managed, and often require external support when in operational positions, limiting their versatility and efficiency.
Innovation Solution
A liftgate with a tri-fold load platform that includes a proximal, center, and distal deck section, pivotally coupled to allow for both extended-operational and retracted-stored positions, featuring a lock mechanism and support members to ensure self-supporting operation without external assistance, enabling larger cargo handling and improved access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If the load platform dimensions are increased to handle larger cargo, then cargo handling capacity is improved, but the ability to retract the load platform without interfering with cargo access is worsened
Solution Approach 1:
The load platform is divided into three separate deck sections (proximal, center, and distal) that can be independently folded relative to each other. This segmentation allows the platform to be collapsed into a compact configuration for storage without blocking cargo access, while still providing a large extended surface area for handling oversized cargo when deployed.
2Adaptability or versatility
If the load platform is designed to be self-supporting without external support, then operational versatility is improved, but the structural complexity increases
Solution Approach 1:
The distal deck section is pre-configured with a cantilevered structure that extends outward from the center deck section. This preliminary structural arrangement allows the distal section to support itself and any cargo without requiring external support during operation, enabling versatile deployment in various locations without additional support structures.
3Ease of operation
If the deck sections are pivotally coupled to allow folding, then the retraction capability is improved, but the reliability of the load-bearing connection is worsened
Solution Approach 1:
The deck sections are connected through pivotal joints that enable dynamic movement between extended and retracted positions. These same pivotal connections maintain reliable load-bearing capacity when the sections are in the extended operational position, allowing the structure to transition smoothly between states while maintaining structural integrity during cargo handling.
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.