Delivery Vehicle Door and Window Layout for Wide Driver Visibility
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Solution Overview
Problem
Current delivery vehicles face challenges in providing optimal visibility and accessibility for operators, with limitations in door design and compartment layout affecting efficiency and safety during parcel delivery operations.
Innovation Solution
The design of a delivery vehicle with enhanced visibility features, including oversized windows, adjustable seating, and a sliding door assembly that maximizes access to both the driver compartment and cargo area, allowing for improved visibility and unobstructed movement of parcels and personnel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the driver compartment is designed with standard door and window dimensions, then the vehicle structure remains compact and simple, but the operator's visibility and accessibility are limited
Solution Approach 1:
The patent applies parameter changes by increasing the dimensions of windows and doors beyond standard sizes. Specifically, the first window has a height of at least 1.6 meters and the second window has a height of at least 0.6 meters, allowing operators of various heights (including 95th percentile male) to see out at angles of at least 95 degrees. The sliding door assembly also uses non-standard dimensions to maximize visibility while maintaining structural integrity.
2Strength
If the A-pillars are made longer to improve structural strength, then the vehicle body becomes more rigid, but the operator's field of view is reduced
Solution Approach 1:
The patent applies local quality by differentiating the characteristics of A-pillars on each side of the vehicle. The first A-pillar (on the driver's side) is designed with specific length and positioning to optimize visibility for the operator, while the second A-pillar may have different dimensions. This allows each A-pillar to be optimized for its specific location and function, balancing structural strength with visibility requirements.
3Ease of operation
If the door height and window height are increased to improve visibility, then the operator can see at wider angles, but the manufacturing cost and structural complexity increase
Solution Approach 1:
The patent applies dynamics by implementing a sliding door assembly that can move between closed and open positions. The sliding mechanism allows the door to traverse along a guide rail, providing dynamic access to the driver compartment. This dynamic design optimizes both visibility (when open) and security/structural integrity (when closed), while the standardized sliding mechanism helps control manufacturing complexity.
4Ease of operation
If the vehicle is designed for maximum visibility with large windows, then operator awareness is improved, but the structural integrity and security are compromised
Solution Approach 1:
The sliding door assembly provides a dynamic solution that balances visibility and security. When the door is in the closed position, it maintains structural integrity and security similar to a fixed door. When opened along the guide rail, it provides unobstructed access and maximum visibility. The sliding mechanism with locking features ensures that the door can be securely positioned when closed while allowing easy movement when open.
Data Source
AI summary
A vehicle assembly includes a vehicle body and a driver seat. The vehicle body defines a driver compartment having a first door with a first window and a second door with a second window. The driver seat is disposed within the driver compartment. When the driver seat is in a position that accommodates an operator being in a 95th male height percentile, the operator within the driver seat can see out of (i) the first window at a first angle relative to a forward looking direction that is parallel with a longitudinal axis of the vehicle body and (ii) the second window at a second angle relative to the forward looking direction. Each of the first angle and the second angle is at least 95 degrees.