Door Snubber and Strike Plate for Vibration Damping
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Solution Overview
Problem
Existing door latch systems fail to effectively reduce vibrational noise and maintain consistent gap under external vibrations, particularly in applications like aircraft compartments where noise and weight reduction are critical.
Innovation Solution
A mechanism integrating a strike plate and snubber, where the snubber engages overlapping edge trim to bias the door away from the frame, maintaining a consistent gap and reducing noise, and can be configured as separate or integrated components with bearing pads and dampeners for enhanced vibration resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a door snubber engages the closed door to keep it in tension, then vibrational noise is reduced, but the door gap under external vibrations becomes inconsistent
Solution Approach 1:
The snubber mechanism is designed to dynamically adjust the door gap in response to external vibrations. The bearing pads and spring element allow the snubber to move and adapt to vibration-induced forces, maintaining consistent gap spacing while keeping the door in tension to reduce vibrational noise.
Solution Approach 2:
The snubber changes the physical parameters of the door-system by introducing a spring element that can compress and extend. This allows the gap between the door and frame to vary dynamically under vibration while maintaining overall consistency, resolving the contradiction between noise reduction and gap stability.
2Ease of manufacture
If separate snubber and strike plate components are used, then ease of installation is improved, but device complexity increases
Solution Approach 1:
The door latch system is segmented into functionally independent components: the snubber (with bearing pads and spring element) and the strike plate (with latch receptacle). This segmentation allows for easier installation and maintenance while keeping the overall system manageable despite the increased number of components.
Solution Approach 2:
While keeping components separate for ease of installation, the snubber and strike plate are designed to work together as an integrated system. The bearing pads of the snubber engage with the strike plate, and both components are mounted on the same frame, creating a unified functional unit that reduces overall system complexity despite having multiple parts.
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
The integrated mechanism effectively reduces vibrational noise, increases storage volume by not obstructing the compartment threshold, and offers a lightweight, easy-to-install solution for aircraft applications, reducing installation time and weight while improving vibration resistance.
Implementation Method 1
The snubber includes a spring element that biases the bearing pads away from the strike plate
Implementation Method 2
The integrated mechanism effectively reduces vibrational noise
Data Source
AI summary
A structure comprises a door, a frame for the door, and a door snubber. One of the frame and the door has an overlapping edge trim, and the other carries the snubber such that the snubber engages the edge trim when the door is closed on the frame.