Utility Vehicle Seat Extension Kit with Separable Frame
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Solution Overview
Problem
Utility vehicles with two-seat configurations face challenges in meeting market demand for four-seat models due to unpredictable demand, leading to overproduction or underproduction risks, and standard beds have limited load-carrying capacity and stability issues when extended.
Innovation Solution
A seat extension kit that converts a two-seat utility vehicle into a four-seat configuration by adding a second seat assembly and floorboard, using a separable frame design with pre-existing fastener holes for easy installation, and allowing for the use of a longer bed without structural integrity issues.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a four seat configuration is manufactured to meet customer demand, then customer satisfaction improves, but inventory risk and financial costs increase due to unpredictable demand
Solution Approach 1:
The vehicle is divided into modular components: a base two-seat unit and a separate convertible seat extension kit. The frame is separable into front and rear portions with pre-provided fastener holes, allowing the seat extension to be installed or removed as needed. This segmentation enables manufacturers to produce only the base two-seat configuration while offering the four-seat capability as an optional add-on, eliminating inventory risk for four-seat vehicles.
Solution Approach 2:
The vehicle configuration is made dynamic and adjustable rather than fixed. Customers can convert between two-seat and four-seat configurations based on their immediate needs by installing or removing the seat extension kit. This dynamic adaptability allows a single vehicle design to serve multiple market segments, reducing the need for manufacturers to forecast and stock different vehicle variants.
2Quantity of substance
If a longer bed is used to increase load carrying capacity, then load capacity improves, but structural integrity deteriorates due to cantilevered portion without proper support
Solution Approach 1:
The frame is segmented into separable front and rear portions with pre-provided fastener holes positioned to accommodate extended bed configurations. When the seat extension kit is installed, these fastener holes provide proper support points for a longer bed, preventing cantilevered portions without adequate support. This segmentation allows the bed to be properly anchored at multiple points along the extended frame length.
Solution Approach 2:
The seat extension kit acts as an intermediary structural element between the front and rear frame portions. It provides the necessary intermediate support points (via pre-provided fastener holes) that enable a longer bed to be properly supported without creating unsupported cantilevered sections. The extension kit mediates the structural connection, allowing the bed to span the full length while maintaining integrity.
3Quantity of substance
If a longer bed is used to increase load carrying capacity, then load capacity improves, but vehicle safety deteriorates due to increased risk of hitting objects during tight turns
Solution Approach 1:
The separable frame design with pre-provided fastener holes allows for proper positioning of a longer bed that maintains appropriate clearance during vehicle maneuvers. The segmented frame structure enables the bed to be correctly aligned and supported, reducing the likelihood of the bed contacting ground objects during tight turns compared to an improperly supported cantilevered extension.
4Adaptability or versatility
If a seat extension kit is added to convert two-seat to four-seat configuration, then seating capacity improves, but device complexity increases
Solution Approach 1:
The vehicle system is segmented into a base two-seat configuration and a separate seat extension kit. This segmentation keeps the base vehicle simple and straightforward, while the extension kit provides the additional complexity only when needed. The pre-provided fastener holes in the separable frame simplify the conversion process, reducing the complexity burden compared to a fully integrated four-seat design.
Solution Approach 2:
The base two-seat vehicle design serves as a universal platform that can function as either a two-seat or four-seat vehicle depending on whether the extension kit is installed. This multi-functionality reduces overall system complexity by using a common base design rather than maintaining separate dedicated two-seat and four-seat vehicle lines.
Data Source
AI summary
A utility vehicle has a frame that is separable at a location passing through an operator compartment of the vehicle into front and rear sections with the seat base and seat assembly of the operator compartment remaining with the rear section and the rest of the operator compartment remaining with the front section. A seat extension kit is provided having a frame extension, a seat module, and a floorboard module that may be inserted between the split front and rear sections with the frame extension being fastened to such sections using pre-existing fastener holes in the vehicle frame and the frame extension. When so inserted, the seat module forms a new front row of seating with the floorboard module extending between the seat module and the original seat base and seat assembly, which now form a rear row of seating. This expands the vehicle seating capacity from two people to four people.