Lever Connector Cover Section Prevents Finger Interference

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

In known lever-type connectors, the spring section can be inadvertently deflected by a finger, preventing it from returning to its resting position, which hinders the confirmation of connection completion due to the design where the finger can press the spring section when the lever is rotated to the mating completion position, leading to operational inefficiencies.

Innovation Solution

A connector design featuring a wire cover with a U-shaped cover body, a rotatable lever, and a lock mechanism with a spring section and engaging section, where the coupling part includes a cover section that prevents finger contact with the engaging section and spring section when the lever is at the completion position, ensuring proper deflection and return of the spring section.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the lever is rotated to the mating completion position, then the engaging section and spring section provide tactile and audible feedback, but the finger may inadvertently press the spring section preventing it from returning to the resting position

Engineering Contradiction:
Improveconnection completion confirmationVSAvoidoperability
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The cover section acts as an intermediary element between the operator's finger and the spring section. It allows the necessary tactile and audible feedback to pass through while physically blocking the finger from pressing the spring section, thus maintaining both reliable connection confirmation and ease of operation

Inventive Principle:
Principle #24Intermediary (Mediator)

2Ease of operation

If the spring section is pressed by a finger during lever rotation, then the lever can be positioned, but the spring section cannot return to its resting position, preventing feedback confirmation

Engineering Contradiction:
Improvelever positioningVSAvoidconnection completion confirmation
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The cover section serves as a protective intermediary that allows the lever to be positioned and the spring to deflect naturally, but prevents the finger from maintaining continuous pressure on the spring section, ensuring the spring can return to its resting position to provide confirmation feedback

Inventive Principle:
Principle #24Intermediary (Mediator)

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

This design allows for reliable confirmation of connection completion through the audible and tactile feedback provided by the spring section's return, enhancing the operability of the connector by preventing finger interference and ensuring accurate mating confirmation.

Implementation Method 1

the spring section 61 deflects. When the lever 50 is further rotated, the catch 51 goes over the engaging section 62. At this moment, the spring section 61 resiliently deflects backward. A clicking sound and a physical touch are realized by the operator when the engaging section 62 abuts on the catch 51

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentUS8764474B2Connector with lever and wire cover
Publication Date: 2014.07.01 TE CONNECTIVITY JAPAN GK
  • US8764474B2 patent drawing
  • US8764474B2 patent drawing
  • US8764474B2 patent drawing

AI summary

A lever-type connector having a cover and a lever. The cover includes a body and a lock with a spring section connected to the body and an engaging section connected to the spring section. The lever connects to the body and includes a rotatable pair of arms facing each other and a coupling part connecting the rotatable pair of arms together. The coupling part is engageable with the lock when the lever is rotated toward the lock and includes a cover section covering the engaging section and a portion of the spring section when the lock engages the lever.