Off-Road Vehicle Cargo Box and Engine Cradle Removal Layout
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Solution Overview
Problem
Off-road recreational vehicles face challenges in efficiently accommodating removable cargo boxes and engine components, which are often complex and require multiple fasteners for removal, complicating maintenance and customization.
Innovation Solution
The design incorporates a cargo box that is removably coupled to the vehicle frame with fewer than eight fasteners and an engine cradle with portions extending forwardly and rearwardly of the engine block, allowing for easy removal and installation of the cargo box and engine components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the cargo box is removably coupled with multiple fasteners to ensure secure attachment, then the structural integrity is improved, but the ease of operation deteriorates due to complex removal and installation procedures
Solution Approach 1:
The fastening system is segmented into multiple individual fasteners distributed across the cargo box attachment points, allowing the box to be removed in sections rather than requiring complete disassembly of a single complex fastening mechanism. This maintains secure attachment when fastened while enabling progressive removal.
Solution Approach 2:
The fastening system transitions from a static, permanently fixed connection to a dynamic, selectively engageable connection. The fasteners can be quickly engaged or disengaged based on operational needs, allowing the cargo box to switch between securely attached and easily removable states without compromising structural integrity when fastened.
2Reliability
If the engine cradle extends under the engine block to provide comprehensive support, then the reliability is improved, but the ease of repair deteriorates due to reduced accessibility of engine components
Solution Approach 1:
The engine cradle is segmented into multiple support portions rather than a single monolithic structure. This allows specific sections of the cradle to be accessed or removed independently, providing comprehensive engine support when installed while enabling targeted access to engine components for maintenance and repair operations.
Solution Approach 2:
The engine cradle is designed as a separable component that can be extracted from the vehicle assembly for maintenance purposes. The cradle portions can be removed or detached to provide access to engine components, then reinstalled to restore full support functionality, balancing reliability with repairability.
3Strength
If the cargo box floor extends over the cargo box support members to distribute load, then the strength is improved, but the device complexity increases due to additional structural components
Solution Approach 1:
The cargo box floor is merged with or integrated over the support members rather than being a separate, complex assembly. This integration allows the floor to naturally distribute loads across multiple support points while minimizing the number of distinct components, achieving load distribution without proportionally increasing structural complexity.
Solution Approach 2:
The cargo box floor serves multiple functions: it provides the cargo carrying surface, acts as a load distribution structure over the support members, and contributes to the overall structural rigidity of the cargo box assembly. This multi-functionality reduces the need for additional specialized components.
Data Source
AI summary
A utility vehicle including a frame, a body supported by the frame, a seating area supported by the frame, front and rear ground engaging members supporting the frame and the body, and a powertrain drivingly coupled to the front and rear ground engaging members. The powertrain includes a transmission and an engine having a plurality of cylinders. The engine includes an intake manifold, a throttle valve, and an exhaust. The intake manifold and throttle valve are positioned longitudinally forward of the plurality of cylinders and the exhaust is positioned longitudinally rearward of a forwardmost portion of the plurality of cylinders.