Movable Cab Back Assembly for Extendable Vehicle Cargo Beds
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Solution Overview
Problem
Existing vehicles, particularly pickup trucks, lack an efficient mechanism to extend their cargo bed space without compromising passenger compartment space or structural integrity, especially in unibody configurations.
Innovation Solution
A cab back assembly in vehicles, such as pickup trucks, is designed to move between standard and extended bed positions, allowing an extended floor region to extend into the passenger compartment, supported by sliding or pivoting mechanisms, and incorporating a rear window and front wall that adjusts to accommodate additional cargo space.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the cargo bed is extended into the passenger compartment, then cargo capacity is improved, but passenger space is reduced
Solution Approach 1:
The cab back assembly is made movable between a retracted position (providing maximum passenger space) and an extended position (providing maximum cargo bed length). This dynamic configuration allows the vehicle to adapt between cargo-oriented and passenger-oriented modes, resolving the contradiction by making the space allocation variable rather than fixed.
2Length of stationary object
If the cab back assembly is made movable to extend the cargo bed, then cargo bed length is improved, but structural complexity is increased
Solution Approach 1:
The cab back assembly is divided into separable components including the rear wall, rear window, and floor section that can move independently relative to the main vehicle structure. This segmentation allows the moving parts to be simplified and modular, reducing the overall complexity compared to moving the entire cab structure.
Solution Approach 2:
The movable cab back assembly serves multiple functions: it acts as a structural separator between cargo and passenger areas, provides a rear window for visibility, supports the extended floor, and creates the extended cargo bed boundary. By consolidating these functions into a single movable assembly, the design avoids the need for separate mechanisms for each function, thereby reducing overall complexity.
3Volume of moving object
If the extended floor region is used for cargo, then cargo capacity is improved, but passenger comfort is reduced
Solution Approach 1:
The system dynamically reconfigures the vehicle interior by moving the cab back assembly, allowing the extended floor region to serve different purposes based on operational needs. When in cargo mode, the extended floor becomes part of the cargo bed; when in passenger mode, it remains part of the passenger compartment, thus adapting to different usability requirements.
Data Source
AI summary
A vehicle assembly includes a cab back assembly that separates a cargo bed area of a vehicle from a passenger compartment of the vehicle. The cab back assembly is movable between a standard bed position and an extended bed position. A cargo bed floor has an extended floor region that extends into the passenger compartment when the cab back assembly is in the standard bed position. The extended floor region is aft of the passenger compartment when the cab back assembly is in the extended bed position.