Vehicle Tailgate Extension Assembly for Long Cargo
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Solution Overview
Problem
Some vehicle cargo beds are inadequate for securely storing and hauling cargo that is longer than the bed's length, as they lack sufficient extension mechanisms to manage and separate longer items during transport.
Innovation Solution
A vehicle tailgate with an extension assembly that includes a support member, a slidable and rotatable arm, and a locking mechanism, allowing the arm to extend and lock into position to define columns within the cargo compartment, securing cargo and enabling separation of items during transport.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the cargo bed length is increased to accommodate longer cargo items, then the cargo storage capacity is improved, but the vehicle size and manufacturing cost increase
Solution Approach 1:
The tailgate is designed with dynamic extension capabilities through telescoping panels and extendable arms that can protrude beyond the fixed vehicle body. This allows the cargo compartment to dynamically increase its length during operation to accommodate longer items, while maintaining a compact fixed length when the extensions are retracted.
Solution Approach 2:
The extension mechanism utilizes the third dimension (depth/protrusion) to increase cargo capacity. The tailgate panels and arms extend outward from the vehicle body in a direction perpendicular to the main vehicle length, effectively adding storage volume without proportionally increasing the vehicle's overall length.
2Adaptability or versatility
If the tailgate is made fully extendable to increase cargo length, then the cargo management capability is improved, but the structural stability and security are worsened
Solution Approach 1:
The tailgate is divided into multiple independent segments including fixed panels, telescoping panels, and extendable arms. Each segment can move or extend independently while remaining connected to the overall structure. This segmentation allows the tailgate to achieve extension for cargo management while maintaining structural integrity through the interconnected segments.
Solution Approach 2:
The tailgate incorporates dynamic locking mechanisms that secure the telescoping panels and extendable arms in their extended positions during cargo transport. These locking features provide structural stability when extension is needed, while allowing smooth movement when adjustment is required, thus maintaining both adaptability and reliability.
3Adaptability or versatility
If the extension assembly is made complex to provide multiple extension states, then the cargo adaptability is improved, but the device complexity and manufacturing cost increase
Solution Approach 1:
The telescoping tailgate panels and extendable arms utilize a nested configuration where smaller components are housed within larger ones. When retracted, the extensions are contained within the main tailgate structure, creating a compact form. When extended, they provide additional cargo length. This nesting reduces the overall complexity compared to having separate extendable components.
Solution Approach 2:
The extension assembly is designed as an integrated system where the telescoping panels and extendable arms work together to provide multiple extension states. The same structural components serve both as support elements and as extendable features, reducing the need for separate dedicated components for each function and thereby reducing overall device complexity.
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 extension assembly allows for secure storage and hauling of longer cargo items by providing additional space and the ability to separate items within the cargo compartment, enhancing the vehicle's cargo management capabilities.
Implementation Method 1
The arm is coupled to the tailgate via a spring member. The spring member biases the arm toward the stowed position.
Implementation Method 2
The another spring member rotationally biases the arm toward the locked position.
Data Source
AI summary
The vehicle includes a cab, a plurality of side walls, a tailgate and an extension assembly. The plurality of side walls extend from an aft end of the cab. The tailgate is coupled to the side walls and pivotable about a horizontal axis between a closed position and an open position. The tailgate includes a plurality of panels that cooperate to define a cavity. The extension assembly includes a support member and an arm. The support member is disposed within the cavity and coupled to the tailgate. The arm has a longitudinal axis and extends through the support member and the tailgate. The arm is slidable along the longitudinal axis between a stowed state and a deployed state when the tailgate is in the open position and the closed position. The arm is also permitted to rotate about the longitudinal axis when in the unlocked position.