Aircraft Seat Foot Unit Dynamics for Stowage Safety
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Solution Overview
Problem
Aircraft seat systems with seats connected on a guide rail face challenges in achieving a stowage position that complies with safety standards due to backrest height issues, and existing systems lack flexibility for efficient space utilization and easy stowage of non-required seats.
Innovation Solution
A transport seat system with seats arranged one behind the other, featuring a mounting module with a movable seat foot unit and a pivot bearing, allowing for adjustment between usage and stowage positions while maintaining a consistent backrest height and enabling partial overlap of mounting modules for space-saving arrangements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If seats are displaced on guide rail to achieve stowage position, then space utilization is improved, but backrest height becomes contrary to safety requirements
Solution Approach 1:
The mounting module incorporates a movable seat foot unit that can dynamically adjust its position along the guide rail. This dynamic adjustment mechanism allows the seat to achieve a stowage position for space optimization while maintaining the backrest at a safe, permissible height through controlled movement of the seat foot unit rather than moving the entire seat assembly
Solution Approach 2:
The mounting module is divided into separable components: a fixed portion attached to the guide rail and a movable seat foot unit. This segmentation allows independent adjustment of the seat foot unit to achieve stowage positioning without compromising the overall seat structure and backrest height requirements
2Reliability
If seats are fixedly mounted for safety, then safety compliance is improved, but flexibility for space optimization is reduced
Solution Approach 1:
The mounting module transitions from a fixed mounting concept to a dynamic system where the seat foot unit can be positioned at different locations along the guide rail. This enables the seat to be securely mounted in various positions, including stowage positions, while maintaining safety compliance through controlled, limited movement rather than complete fixation
3Productivity
If entire seat assembly is moved for stowage, then space efficiency is improved, but device complexity increases
Solution Approach 1:
Instead of moving the entire seat assembly, only the seat foot unit is extracted and made movable along the guide rail. This extraction of the minimal necessary component (the foot unit) reduces the complexity of the movement mechanism compared to moving the complete seat, while still achieving the space efficiency benefits of stowage positioning
Data Source
AI summary
A transport seat system, in particular aircraft seat system, includes at least one first seat, with at least one mounting module that is configured, for the purpose of mounting the seat, to be connected on a guide rail, and with at least one second seat, which is arranged behind the first seat with at least one mounting module that is configured, for the purpose of mounting the seat, to be connected on the same guide rail, the two seats being configured, for the purpose of implementing a usage position and a stowage position of at least one of the seats, to be displaced on the guide rail relative to one another, whereinat least one mounting module of at least one of the seats includes a seat foot unit, which is movably supported relative at least to a portion of the mounting module.