Flexible Pressure Tab Release Mechanism for Latching Connections

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Solution Overview

Problem

Existing devices with detachable latching connections for body and cover parts are complex and costly to manufacture, requiring separate release mechanisms that complicate the design.

Innovation Solution

A simple and cost-effective design where a flexible pressure tab, cut out of the cover part, acts to release the latching hook, featuring a tab rib that engages with the latching hook, eliminating the need for additional release mechanisms.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a separate sliding part or lever element is used for the release mechanism, then the latching connection can be released, but the device structure becomes complex and manufacturing cost increases

Engineering Contradiction:
Improvelatching connection release functionVSAvoidrelease mechanism structure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The release mechanism is merged with the cover part itself. The tab (11) is formed as an integrated flexible element directly from the cover part material, eliminating the need for separate sliding parts or lever elements. This integration maintains the release function while significantly simplifying the overall device structure and reducing manufacturing complexity

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The cover part serves dual functions: it provides structural enclosure and simultaneously houses the release mechanism through its integrated tab. The tab's flexibility and geometric design enable it to self-effectuate the release function by engaging and disengaging the latching lugs (18, 19) without requiring external mechanical components

Inventive Principle:
Principle #25Self-service

2Ease of operation

If multiple separate components are used for release mechanism, then release function is achieved, but manufacturing cost increases

Engineering Contradiction:
Improverelease mechanism operationVSAvoidmanufacturing cost
Core Design Contradiction:
Ease of operationVSEase of manufacture

Solution Approach 1:

Multiple functions (cover enclosure and release mechanism) are combined into a single integrated cover part. The tab (11) is formed as one continuous element with the cover part through standard molding processes, eliminating the need for separate components and assembly steps, thereby reducing manufacturing cost while maintaining ease of operation

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The cover part is designed to perform multiple functions simultaneously: it provides the structural enclosure for the device and contains the integrated tab that serves as the release mechanism. This multi-functionality reduces the total number of components needed, simplifying both manufacturing and operation

Inventive Principle:
Principle #6Universality (Multi-functionality)

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 results in a reliable and inexpensive manufacturing process with a straightforward mechanical structure that ensures secure engagement and easy release of the cover part from the body part.

Implementation Method 1

a flexible pressure tab (11), which, when actuated, serves to release the rear grip of the latching hook (17)

Methodology Applied
Scientific EffectLever: Lever

Data Source

PatentEP1913667B1Device comprising a releasable locking connection
Publication Date: 2016.05.04 A RAYMOND & CO SCS
  • EP1913667B1 patent drawingFigure 1
  • EP1913667B1 patent drawingFigure 2

AI summary

Disclosed is a device comprising a base part (2) and a top part (7) that can be joined to the base part (2) via a releasable locking connection (16). The locking connection (16) is provided with at least one catch (18, 19) that is attached to a locking web (20) and engages with a thrust bearing section (21) in a closed position, and a releasing mechanism which acts upon the locking connection (16) and causes the engagement of the or each catch (18, 19) to be canceled when being actuated. The locking connection (16) is also provided with a flexible pressure latch (11) which is recessed in the top part (7). A latch rib (15), under the effect of which the engagement of the or each catch (18, 19) is canceled, is molded onto the side of the pressure latch (11) facing the or each catch (18, 19), whereby a very simple and safe mechanical structure is obtained, resulting in a relatively low production cost.