Off-Road Door Overlap Structure for Privacy and Dust Sealing
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Solution Overview
Problem
The presence of a clearance between the rear end of the front door and the front end of the rear door in off-road vehicles increases the likelihood of the vehicle compartment being viewed from the outside, necessitating additional components to block the view, which raises manufacturing costs.
Innovation Solution
The design of the off-road vehicle ensures that the rear end of the front door overlaps with the front end of the rear door in the vehicle width direction, eliminating the need for additional components by positioning the rear end of the front door outside the front end of the rear door, and incorporating protruding pieces and a sealant to prevent visibility and dust entry.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a clearance is provided between the front door and the rear door for ease of assembly and operation, then the ease of operation is improved, but the vehicle compartment becomes visible from the outside requiring additional blocking components
Solution Approach 1:
The patent applies dimensionality change by extending the front door in the width direction (lateral dimension) rather than only in the length direction (front-rear dimension). This widthward extension causes the front door to overlap the rear door when viewed from the width direction, blocking the view into the vehicle compartment without requiring additional blocking components. The clearance is maintained in the length direction for ease of operation while the width direction extension provides the privacy function.
2Object-affected harmful factors
If an additional component is added to block the view through the clearance, then the privacy is improved, but the manufacturing cost increases
Solution Approach 1:
The patent merges the privacy-blocking function into the front door itself by extending it in the width direction to overlap the rear door. This integration eliminates the need for separate blocking components, thereby reducing the number of parts, simplifying assembly, and lowering manufacturing costs while maintaining the privacy function.
Solution Approach 2:
The front door is designed to serve multiple functions: it provides access to the vehicle compartment, maintains structural integrity, and simultaneously blocks the view into the compartment by overlapping the rear door. This multi-functionality reduces the need for additional specialized components, thereby reducing manufacturing complexity and cost.
3Ease of manufacture
If the rear end of the front door is positioned inside the front end of the rear door, then the manufacturing is simplified, but the vehicle compartment becomes visible from the outside
Solution Approach 1:
The patent changes the positioning strategy from purely longitudinal (front-rear direction) to include lateral (width direction) extension. The front door extends in the width direction to overlap the rear door, achieving privacy blocking without complicating the longitudinal positioning and assembly process.
Data Source
AI summary
A utility vehicle includes a front door and a rear door located in rear of the front door. A rear end portion of the front door overlaps with a front end portion of the rear door as viewed in a vehicle width direction, and is located outside in the vehicle width direction with respect to the front end portion of the rear door.