Posture Holding Lever Connector for Reliable Fitting
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Solution Overview
Problem
The existing lever type connectors face issues with reliable release of the fitting operation lever from its temporarily locked state, leading to potential damage and low working efficiency due to inclination caused by loads from electric wires, requiring careful alignment during fitting.
Innovation Solution
Incorporating a posture holding tab on the fitting operation lever that fills the space between the hood and the first connector housing to maintain a parallel posture, allowing the temporal locking state to be released reliably without stressful work, and including a temporal-locking releasing portion on the second connector housing to facilitate smooth fitting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the fitting operation lever is temporarily locked at the rotation start position, then the lever can be held in position during assembly, but the lever cannot be released reliably causing potential damage and low working efficiency
Solution Approach 1:
The patent introduces a releasing force receiving tab as an intermediary element that mediates between the operator's action and the engagement tongue. The tab receives the releasing force and transmits it to deflect the engagement tongue, enabling reliable release of the temporarily locking portion without directly manipulating the lever itself.
Solution Approach 2:
The posture holding tab automatically maintains the parallel posture of the connector housings during the fitting operation. This self-servicing mechanism ensures that the lever can be released reliably without requiring the operator to manually maintain proper alignment, preventing damage and improving working efficiency.
2Manufacturing precision
If careful alignment is required during fitting, then the connector housings can be properly assembled, but the working efficiency is reduced due to time-consuming alignment
Solution Approach 1:
The posture holding tab is pre-configured on the fitting operation lever to automatically maintain the parallel posture of the connector housings during the fitting operation. This preliminary action eliminates the need for manual alignment adjustments, ensuring proper assembly while significantly improving working efficiency.
3Ease of operation
If the fitting operation lever is pushed strongly to overcome locking, then the lever can be moved, but damage may occur to the lever or connector
Solution Approach 1:
The releasing force receiving tab serves as a mediator that properly transmits the operator's releasing force to the engagement tongue. This intermediary mechanism allows the lever to be moved smoothly without requiring excessive force, preventing damage to the lever or connector while maintaining ease of operation.
Data Source
AI summary
A lever type connector includes a first connector housing, a second connector housing having a hood into which the first connector housing is fitted, and a fitting operation lever coupled to the first connector housing. The fitting operation lever is rotatable from a rotation start position to a rotation end position to completely fit the first and second connector housings to each other. The first connector housing includes a temporarily locking portion to temporarily lock the fitting operation lever at the rotation start position. The second connector housing includes a temporal-locking releasing portion to release the fitting operation lever from being temporarily locked by the temporarily locking portion. The fitting operation lever includes a posture holding tab configured to fill a space between the hood and the first connector housing to hold the first connector housing and the fitting operation lever in a posture parallel to the hood.