Aircraft Seat Backrest Adjustment via Segmented Connection Module
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Solution Overview
Problem
Existing aircraft seat assembly kits lack flexibility in backrest adjustment without requiring new approval, limiting customization and increasing production costs due to rigid assembly constraints.
Innovation Solution
An assembly kit for aircraft seats that includes adjustable elements and connection modules allowing the backrest to be oriented in multiple angles without needing new approval, utilizing eccentric adjusting elements and spatially separable connection elements to facilitate cost-effective and flexible assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If rigid assembly constraints are used to ensure safety and approval compliance, then reliability is improved, but adaptability deteriorates
Solution Approach 1:
The connection module is divided into separate connection elements that can be independently selected and assembled. Each connection element provides a specific backrest adjustment angle, allowing the system to be segmented into discrete, pre-approved configurations while maintaining overall flexibility through combination of these segments.
Solution Approach 2:
Multiple connection elements with different backrest adjustment angles are pre-configured and included in the assembly kit before assembly. This preliminary preparation allows the assembler to select the appropriate pre-configured element for the desired backrest angle without requiring new approvals, as all elements are designed to meet approval standards in advance.
2Adaptability or versatility
If multiple connection elements with different backrest adjustment angles are provided, then adaptability is improved, but device complexity increases
Solution Approach 1:
The connection module is designed as a universal interface that can accommodate multiple connection elements with different backrest adjustment angles. This universal design allows a single connection module structure to serve multiple functions by simply changing the inserted connection element, rather than requiring different connection modules for each angle.
Solution Approach 2:
The assembly kit transitions from a static, single-configuration design to a dynamic, multi-configuration design. The connection module is designed to dynamically adapt to different connection elements, allowing the backrest adjustment angle to be changed by replacing the connection element while keeping the rest of the assembly structure unchanged.
3Productivity
If pre-configured connection elements are used to reduce approval requirements, then productivity is improved, but manufacturing precision requirements increase
Solution Approach 1:
Different connection elements are designed with locally optimized geometries and tolerances specific to their intended backrest adjustment angle. Each connection element has precision features tailored to its specific function, allowing high manufacturing precision to be achieved only where needed for each specific angle configuration, rather than requiring all elements to meet the highest precision standards.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables cost-reduced production of aircraft seats with improved approval-free and flexible backrest adjustment, reducing the need for multiple HIC tests and minimizing assembly errors while maintaining safety standards.
Implementation Method 1
the at least one adjusting element is configured for an eccentric adjustment
Data Source
AI summary
An assembly kit for an aircraft seat comprising at least one mounting unit, at least one backrest which is fixedly coupled with the mounting unit in a state when assembled and ready for flight, and at least one connection module, via which the backrest is in particular oriented rigidly in a position relative to the mounting unit in the assembled and ready-for-flight state, and the connection module comprises at least one adjusting element, by means of which the backrest is orientable respectively in at least two different backrest adjustment angles relative to the mounting unit without requiring new approval, and/or comprises at least two connection elements, by means of which the backrest can be fixedly mounted respectively in at least two different backrest adjustment angles relative to the mounting unit, the at least two connection elements being mountable without requiring new approval.