Delivery Vehicle Door Assembly With Overlapping Sliding Access

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Solution Overview

Problem

Existing delivery vehicles lack efficient door mechanisms that provide selective access to both the driver compartment and cargo compartment, compromising operational efficiency and security.

Innovation Solution

A vehicle design featuring a chassis, body, and door assembly that includes a first door and a second door, both movable to provide selective access to the driver compartment and cargo compartment through sliding mechanisms along parallel guide rails.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If a single door design is used for both driver and cargo compartments, then device complexity is reduced, but access efficiency and security are compromised

Engineering Contradiction:

Improveaccess efficiencyVSAvoiddoor assembly complexity

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The door assembly is segmented into a first door for the driver compartment and a second door for the cargo compartment. Each door can be independently controlled and positioned, allowing selective access to either compartment while maintaining overall system efficiency and security.

Inventive Principle:

Principle #1Segmentation

2Productivity

If doors are positioned to maximize access space, then entry and exit efficiency is improved, but security during transit is reduced

Engineering Contradiction:

Improveentry and exit efficiencyVSAvoidsecurity during transit

Core Design Contradiction:

ProductivityVSReliability

Solution Approach 1:

The door assembly incorporates movable doors that can dynamically change position between a first position for efficient access and a second position for secure transit. The doors are configured to overlap when in the second position, preventing accidental opening while maintaining the ability to quickly access compartments when needed.

Inventive Principle:

Principle #15Dynamics

3Reliability

If overlapping door design is used, then security is improved, but device complexity increases

Engineering Contradiction:

ImprovesecurityVSAvoiddoor mechanism complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The first and second doors are merged in space to create an overlapping configuration when in the second position. This merging provides enhanced security by preventing accidental opening while the shared door assembly structure reduces overall complexity compared to separate door systems.

Inventive Principle:

Principle #5Merging (Combining)

Data Source

PatentUS20250178486A1Door assembly for delivery vehicle

Publication Date: 2025.06.05 OSHKOSH CORPORATION

AI summary

A vehicle includes a chassis, a body, and a door assembly. The body is supported by the chassis, and defines a driver compartment and a cargo compartment. The driver compartment has a cab opening and the cargo compartment has a cargo opening. The door assembly is coupled to the body and provides selective access into the driver compartment and into the cargo compartment through the cab opening and cargo opening, respectively. The door assembly includes a first door and a second door. The first door is movable between a first position extending across the cab opening and a second position extending at least partially across a portion of the cab opening. The second door is movable between a third position extending across the cargo opening and a fourth position extending at least partially across a portion of the cab opening.