Multi-contact Connector Self-locking Bolt Mechanism
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Solution Overview
Problem
The existing multi-contact connectors for aircraft on-board equipment are difficult to mount on supports without tools and often require complex operations, leading to potential misalignment and loss of components.
Innovation Solution
A multi-contact connector case with a bolt element that can be manually locked onto a support using a resilient return member, allowing for secure fastening without tools, and featuring identification surfaces for visual verification of correct locking, along with a locking mechanism that includes elastically deformable tabs and a groove for enhanced stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a multi-contact connector case is designed for manual mounting without tools, then the ease of operation is improved, but the reliability of secure fastening deteriorates
Solution Approach 1:
The connector case incorporates a self-locking mechanism where the bolt element automatically engages with the support structure through resilient return members that provide automatic resetting functionality. The system serves itself by using the mounting action to trigger the locking mechanism without requiring external tools or additional operations.
Solution Approach 2:
The bolt element is designed to be movable between locked and unlocked positions, allowing dynamic transition during mounting and removal operations. The resilient return members enable the bolt to automatically return to its locked position after being displaced, providing dynamic self-regulation of the fastening state.
2Reliability
If a complex locking mechanism is used to ensure secure fastening, then the reliability is improved, but the device complexity increases
Solution Approach 1:
The locking and resetting functions are merged into a single integrated mechanism. The bolt element and resilient return members work together as a unified system where the mounting action simultaneously performs both locking and resetting operations, eliminating the need for separate mechanisms.
Solution Approach 2:
The complex multi-step locking procedures and external tool requirements are extracted from the mounting process. The design removes unnecessary intermediate steps and external dependencies, retaining only the essential bolt displacement and resilient return actions needed for secure fastening.
3Ease of operation
If the bolt element is made movable for manual operation, then the ease of operation is improved, but the risk of component loss increases
Solution Approach 1:
The resilient return members are pre-positioned to provide cushioning and guidance for the bolt element throughout its movement range. This beforehand preparation ensures that the bolt remains guided and controlled during displacement, preventing it from becoming loose or detached.
Solution Approach 2:
The resilient return members act as flexible elements that accommodate the movement of the bolt while maintaining continuous contact and control. These flexible components provide both the force needed for resetting and the constraint needed to prevent component loss.
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 simple and secure mounting of the connector case on a support, reducing the risk of component loss and ensuring effective mechanical and electrical connections, while allowing for easy re-cocking and visual verification of the locking status.
Implementation Method 1
at least one resilient return member configured to move the bolt element from the unlocked position towards the locked position
Implementation Method 2
the bolt element includes at least one elastically deformable tab suitable for pressing against a first abutment of the case body when the bolt element is in the unlocked position
Data Source
AI summary
A multi-contact connector case may be configured on a support. The case may include a case body including at least one fastener portion configured to co-operate with the support when the case is mounted on the support; at least one bolt element movable relative to the case body between an unlocked position and a locked position in which the bolt element presses against the support when the case is mounted on the support, the bolt element moving closer to the fastener portion of the case body on passing from the unlocked position toward the locked position; and at least one resilient return member configured to move the bolt element from the unlocked position toward the locked position, the bolt element including at least one elastically deformable tab configured to press against a first abutment of the case body when the bolt element is in the unlocked position.