Folding Cab Frame Roll Cage Dynamics
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Solution Overview
Problem
Current side-by-side utility and all-terrain vehicles lack adjustable and versatile designs that accommodate varying passenger and cargo needs, particularly in terms of seating arrangements and roll cage configurations, which limits their versatility and operational flexibility.
Innovation Solution
The vehicle design incorporates a chassis with ground engaging members, an engine, and a seating area, featuring adjustable coupling devices and pivotable roll cages that can rotate between positions to accommodate different configurations, allowing for enhanced passenger safety and cargo access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the roll cage is made fixed and rigid for passenger safety, then safety is improved, but the vehicle cannot accommodate confined spaces or varying configurations
Solution Approach 1:
The roll cage is designed with movable portions that can pivot between a raised position (for safety) and a lowered position (for confined spaces). The coupling devices allow the roll cage to be adjusted between different configurations, transforming a static structure into a dynamic one that adapts to different operational requirements while maintaining safety when needed.
2Device complexity
If the coupling device uses a fixed cam surface and handle, then the structure is simple, but it cannot accommodate varying passenger and cargo needs
Solution Approach 1:
The coupling device incorporates an adjustable cam surface with multiple positions and a movable handle that can be positioned at different locations along the cam surface. This allows the coupling device to accommodate varying configurations for passengers and cargo while maintaining a relatively simple overall structure. The adjustability is achieved through discrete positions rather than continuous movement.
3Strength
If the longitudinal members are positioned above the seating area for structural integrity, then strength is improved, but cargo access and confined space operation are limited
Solution Approach 1:
The longitudinal members are designed to be movable between a raised position (above the seating area for structural integrity) and a lowered position (forward of the seating area for cargo access and confined space operation). This dynamic positioning allows the vehicle to maintain structural strength when needed while also accommodating cargo operations and confined space requirements.
4Ease of manufacture
If the vehicle provides fixed seating arrangements, then manufacturing is simpler, but versatility across different applications is reduced
Solution Approach 1:
The seating arrangement is designed with adjustable components that can be positioned at different locations along the longitudinal members. This allows the vehicle to be manufactured with a basic structure and then configured for different applications (passenger transport, cargo carrying, etc.) by adjusting the seating positions rather than manufacturing completely different seating systems.
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
This design enhances passenger safety, cargo accessibility, and operational flexibility by allowing the roll cage to fold for confined spaces and providing adjustable seating arrangements, improving the vehicle's usability across diverse terrains and applications.
Implementation Method 1
a cam surface, the handle being rotatable about the adjustment member to adjust the position of the handle relative to the cam surface
Implementation Method 2
The coupling device has an adjustment member to vary a force of the coupling device
Data Source
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AI summary
An illustrative embodiment of the present disclosure includes a vehicle (10) comprising a plurality of ground engaging members (12, 14), a chassis (30) supported by the plurality of ground engaging members, and an engine (274) supported by the chassis. The engine is configured to provide power to at least one of the plurality of ground engaging members. The vehicle further comprises a seating area (150) supported by the chassis. The seating area includes at least an operator seat (152) and a passenger seat (158) in a side-by-side arrangement. The vehicle further comprises a plurality of longitudinal members (62) positionable above the seating area and a coupling device (130) coupled to at least one of the longitudinal members. The coupling device has an adjustment member (144) to vary a force of the coupling device.