Adjustable Header Latch Assembly With Slide Plate Positioning
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Solution Overview
Problem
Existing latch systems for aircraft cabin headers are fixed in position and require removal and rework for adjustments, lacking the ability to adjust the header's position after installation.
Innovation Solution
An adjustable latch system with a mounting base, slide plate, housing, and compliant spring member that allows for the header to be adjusted in relation to another component without disconnection, providing up to ½ inch of linear movement in ⅛ inch increments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If fixed latches are used to secure the header, then the header is securely attached to the structure, but the header position cannot be adjusted after installation
Solution Approach 1:
The latch system transitions from a fixed position to a movable one through the slide plate mechanism. The slide plate can be positioned at multiple locations along the adjustment track on the mounting base, allowing the header to be adjusted in 1/8 inch increments up to 1/2 inch while maintaining secure attachment. This dynamic positioning capability resolves the contradiction between secure attachment and position adjustability.
2Adaptability or versatility
If the header is removed and reworked for position adjustment, then the header position can be changed, but labor time and costs increase
Solution Approach 1:
The adjustment track and slide plate mechanism are pre-installed on the mounting base during initial assembly. This preliminary preparation allows for quick position adjustments later without requiring removal or rework of the header. The adjustment can be made simply by moving the slide plate to a different location on the track, significantly reducing adjustment time and labor costs.
3Reliability
If the latch arm is retained in the arm channel, then the header is securely held, but accidental unlocking due to turbulence may occur
Solution Approach 1:
The spring member is pre-loaded to apply continuous pressure on the latch arm, pressing it against the retaining surface of the arm channel. This beforehand cushioning force ensures that the latch remains securely engaged even when turbulence applies external forces. The spring acts as a cushion that maintains reliable contact between the latch arm and the channel, preventing accidental unlocking.
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 efficient installation and manufacturing by allowing header adjustments without removing it from the structure, reducing labor time and costs, and preventing accidental unlocking due to turbulence.
Implementation Method 1
a spring member disposed between the mounting base and the slide plate, wherein the spring member exerts a spring force between the mounting base and the slide plate
Data Source
AI summary
A latch system and method are configured to adjustably secure a first component to a second component. The latch system includes a mounting base. A slide plate is moveably coupled to the mounting base. The slide plate is configured to be slidably adjusted relative to the mounting base. A housing is secured to the slide plate. The housing includes an arm channel configured to receive a latch arm. A bumper is coupled to the housing. The bumper is configured to restrain motion of the latch arm within the arm channel.