Angled Access Paths for Aircraft Cabin Space Optimization

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Solution Overview

Problem

Aircraft operators face challenges in increasing passenger capacity without reducing individual comfort, particularly by optimizing space usage in the cabin, including reducing lavatory and galley installations.

Innovation Solution

A forward interior space arrangement in an aircraft featuring a cockpit at the forwardmost part, angled cabin doors, and modular installation spaces that allow for additional seats and stowage volume by creating triangular or trapezoidal spaces between access paths and longitudinal aisles, eliminating the need for traditional galley modules.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Quantity of substance

If traditional galley modules and perpendicular access paths are used, then crew assistance space is sufficient, but passenger seating capacity and stowage volume are reduced

Engineering Contradiction:
Improvepassenger seating capacityVSAvoidinstallation space for galley and stowage
Core Design Contradiction:
Quantity of substanceVSArea of stationary object

Solution Approach 1:

The patent applies asymmetry by positioning cabin doors at forwardmost positions and designing access paths that extend at angles of at least 100° to the longitudinal aisle, rather than the traditional perpendicular arrangement. This asymmetric configuration creates triangular or trapezoidal installation spaces that efficiently utilize the available volume between the cockpit wall and the angled access paths, thereby increasing both passenger seating capacity and stowage volume while maintaining crew assistance space.

Inventive Principle:
Principle #4Asymmetry

Solution Approach 2:

The patent transitions from the traditional two-dimensional perpendicular layout to a three-dimensional angular configuration. By extending access paths at angles of at least 100° to the longitudinal aisle and positioning cabin doors at forwardmost positions, the design creates triangular or trapezoidal installation spaces that exploit the third dimension (depth from cockpit wall), thereby maximizing space utilization for both passengers and crew functions.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Quantity of substance

If cabin doors are positioned forward to maximize seating, then passenger capacity increases, but crew assistance space during boarding may be insufficient

Engineering Contradiction:
Improvepassenger seating capacityVSAvoidcrew assistance space
Core Design Contradiction:
Quantity of substanceVSEase of operation

Solution Approach 1:

The patent segments the cabin interior into distinct functional zones by positioning cabin doors at forwardmost positions and creating angled access paths. This segmentation establishes separate regions: triangular or trapezoidal installation spaces for equipment and stowage, passenger seating areas, and preserved crew assistance spaces near the intersection regions, allowing each zone to optimize its function without compromising others.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The angled access paths serve as intermediaries that connect the forwardmost cabin doors to the longitudinal aisle while creating buffer zones. These access paths, extending at angles of at least 100°, act as mediators that enable passenger flow to seating areas while preserving adjacent spaces for crew assistance functions, thus reconciling the conflicting requirements of maximizing seating and maintaining operational space.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Ease of operation

If access paths extend perpendicular to the longitudinal aisle, then boarding assistance space is sufficient, but triangular spaces for additional seats cannot be created

Engineering Contradiction:
Improveboarding assistance spaceVSAvoidavailable volume for seating and stowage
Core Design Contradiction:
Ease of operationVSVolume of moving object

Solution Approach 1:

The patent replaces the symmetric perpendicular access path configuration with an asymmetric angular arrangement. By extending access paths at angles of at least 100° to the longitudinal aisle rather than perpendicular, the design creates asymmetric triangular or trapezoidal spaces that can be utilized for additional seating and stowage, thereby increasing available volume while maintaining sufficient boarding assistance space through proper positioning.

Inventive Principle:
Principle #4Asymmetry

Solution Approach 2:

The patent transitions from the traditional two-dimensional perpendicular layout to a three-dimensional angular configuration. By extending access paths at angles of at least 100° to the longitudinal aisle and positioning cabin doors at forwardmost positions, the design creates triangular or trapezoidal installation spaces that exploit the third dimension (depth from cockpit wall), thereby maximizing space utilization for both passengers and crew functions.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Data Source

PatentUS11358721B2Forward interior space arrangement for an aircraft
Publication Date: 2022.06.14 AIRBUS OPERATIONS GMBH
  • US11358721B2 patent drawing
  • US11358721B2 patent drawing
  • US11358721B2 patent drawing

AI summary

An interior space for an aircraft includes a cockpit, a cockpit wall separating the cockpit from the remaining interior space, a cabin door arranged directly behind the cockpit wall for accessing the interior space of the aircraft from outside the fuselage, a modular installation space for installation equipment, a plurality of seat rows, a longitudinal aisle extending along the interior space through the seat rows to separate adjacent groups of seats from each other, and an access path for the cabin door. The access path extends from the cabin door to the longitudinal aisle to create an intersection region between the access path and the longitudinal aisle. The modular installation space is arranged directly forward of the seat rows. The access path extends at an angle of at least 100° to the longitudinal aisle in a forward direction.