Aircraft Seat Mount With Locking Device For Rail Interference

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Solution Overview

Problem

Existing seat attachment systems for aircraft seats face difficulties in easy assembly and movement, as the horizontal attachment elements often interfere with the attachment rail, making it challenging to move multiple seats without disengaging them from the rail.

Innovation Solution

A seat attachment system featuring a base body with a horizontal attachment element that can be adjusted between locked and unlocked positions using a lever unit and support elements, allowing for easy coupling and decoupling from the attachment rail, with a form-fitting connection to secure the horizontal element in the unlocked position, preventing accidental re-engagement during movement.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the horizontal attachment element is fixed in the locked position to secure the seat in the attachment rail, then the seat is firmly fixed horizontally, but the seat cannot be moved or repositioned along the rail

Engineering Contradiction:
Improvehorizontal fixationVSAvoidseat movement
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The horizontal attachment element is designed to be dynamically adjustable between locked and unlocked positions. The locking device allows the element to switch between fixing the seat firmly in the rail (locked position) and releasing it for movement (unlocked position), transforming a static structure into a dynamic one that adapts to different operational requirements.

Inventive Principle:
Principle #15Dynamics

2Reliability

If the horizontal attachment element is designed to engage with the attachment rail for secure fixing, then the seat is firmly attached, but the element interferes with the rail when moving multiple seats

Engineering Contradiction:
Improveseat attachmentVSAvoidassembly ease
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The locking device is designed to preliminarily position the horizontal attachment element in the unlocked state during assembly, allowing the base body to be inserted into the attachment rail without interference. Once positioned, the locking device secures the element in the locked position, ensuring firm attachment. This preliminary positioning eliminates interference during the assembly process.

Inventive Principle:
Principle #10Preliminary action

3Ease of operation

If the horizontal attachment element is made adjustable between locked and unlocked positions, then the seat can be easily moved and repositioned, but the complexity of the attachment system increases

Engineering Contradiction:
Improveseat repositioningVSAvoidattachment system complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The locking device is designed to be operated manually by the user without requiring additional tools or complex mechanisms. The simple lever or button operation allows the user to easily switch between locked and unlocked positions, making the system self-sufficient and avoiding the need for external actuation systems that would increase complexity.

Inventive Principle:
Principle #25Self-service

Data Source

PatentEP2981468B1Seat mount
Publication Date: 2017.08.16 RECARO AIRCRAFT SEATING GMBH & CO KG
  • EP2981468B1 patent drawingFigure 1~2
  • EP2981468B1 patent drawingFigure 3~4
  • EP2981468B1 patent drawingFigure 5~6

AI summary

The invention proceeds from a seat mount for mounting a seat, particularly an aircraft seat, on a mounting rail (12), having at least one main body (14), which is provided at least for vertical mounting in the mounting rail (12), and at least one horizontal mounting element (16), which is displaceable between at least one locking position and an unlocking position relative to the main body (14). According to the invention, the seat mount has at least one locking device (18), which is provided to fix the at least one horizontal mounting element (16) in the unlocking position.