Retractable Van Loading Ramp With Internal Guide-Rail Storage
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Loading machinery into utility vans is inconvenient and difficult due to their high step-in/out height, and existing detachable ramps are inconvenient to store and do not span the entire distance between the rear loading doors.
Innovation Solution
A retractable loading ramp assembly with side rails, guide rails, and guide wheels that can be fully stored inside the van, allowing easy deployment and stowage without removing the ramp, and featuring a main deck with raised ribs for traction and a transition deck for smooth transitions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If detachable ramps are used to facilitate loading, then loading ease is improved, but storage convenience deteriorates as they need to be stored separately
Solution Approach 1:
The loading ramp is integrated with the van structure through side rails that attach to the van's existing floor, combining the ramp function with the vehicle's built-in features. This eliminates the need for separate storage while maintaining loading functionality.
Solution Approach 2:
The ramp deck nests within the van's cargo area when not in use, with the side rails providing a guide path that allows the ramp to be stored compactly inside the vehicle, eliminating external storage requirements.
2Ease of operation
If detachable ramps are used to facilitate loading, then loading ease is improved, but the ramp width does not span the entire distance between the rear loading doors
Solution Approach 1:
The side rails are mounted to span the entire distance between the rear loading doors, providing a universal guide path that accommodates the full width of the van's opening, allowing the ramp to cover the complete loading area.
Data Source
AI summary
A loading ramp assembly for utility vans can include a main deck with side rails fastened to the longitudinal sides of the main deck. A raised loading floor of the utility van is disposed atop a pair of guide rails. Guide wheels on the side rails move through guide rails secured to the van's original floor as the ramp is retracted and deployed. The ramp can be fully retracted and stored inside of the van such that the rear doors of the van can be closed normally without the need to remove the loading ramp assembly from the van.