Vehicle Seat Runner Stop Assembly with Integrated Fixing Lug

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Solution Overview

Problem

Existing vehicle seat runner designs require additional positioning elements for stop assembly installation, complicating the structure and installation process.

Innovation Solution

The stop shank includes a fixing lug that enters the fixing wall's opening and rests under its inner face, eliminating the need for additional positioning elements and allowing for external installation by folding the shank against the outer face and engaging the fixing lug, simplifying the installation process.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a positioning element is used to mount the stop on the fixing wall, then the stop can be securely fixed, but the structure becomes more complex and installation becomes more difficult

Engineering Contradiction:

Improvefixing reliabilityVSAvoidstructure complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The fixing lug is integrated directly into the stop shank, merging the stop function and fixing function into a single component. This eliminates the need for separate positioning elements while maintaining secure fixation, as the fixing lug directly engages with the fixing wall opening to mount the stop.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The stop shank serves multiple functions: it positions the stop body, provides fixation through the fixing lug, and enables installation from outside the runner. The fixing lug acts as both a mounting feature and a structural connector, reducing overall system complexity.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Reliability

If a positioning element is used to mount the stop, then the stop can be fixed securely, but the installation procedure becomes more complicated

Engineering Contradiction:

Improvefixing reliabilityVSAvoidinstallation ease

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

Instead of installing the stop from inside the runner through complex positioning, the fixing lug enables installation from outside the runner. The shank is folded down against the outer face of the fixing wall, allowing technicians to access and install the stop from the exterior, simplifying the installation procedure.

Inventive Principle:

Principle #13The other way round (Inversion)

Solution Approach 2:

The shank is designed to be flexible and foldable, transitioning from a straight configuration during installation to a folded position against the fixing wall. This dynamic movement allows the stop to be installed from outside the runner and secures the stop in place without requiring internal access or complex positioning mechanisms.

Inventive Principle:

Principle #15Dynamics

3Reliability

If additional positioning elements are used, then the stop can be mounted reliably, but the number of components increases

Engineering Contradiction:

Improvemounting reliabilityVSAvoidnumber of components

Core Design Contradiction:

ReliabilityVSQuantity of substance

Solution Approach 1:

The fixing lug is integrated directly into the stop shank, merging the stop function and fixing function into a single component. This eliminates the need for separate positioning elements while maintaining secure fixation, directly reducing the total number of components in the assembly.

Inventive Principle:

Principle #5Merging (Combining)

Data Source

PatentUS8678336B2Vehicle seat runner and seat comprising such a runner

Publication Date: 2014.03.25 FAURECIA SIEGES D AUTOMOBILE SA

AI summary

The vehicle seat runner comprising first and second profiles sliding inside each other and a stop fixed on the first profile to limit the travel of the second profile. The stop passes through a first opening in the first profile and has, inside the runner, a stop face oriented capable of stopping the second profile and a nose opposite the stop face and that rests against an inner face of the first profile. The stop is extended opposite the nose, by a shank that extends against an outer face of the first profile to a fixing lug clipped into a second opening in the first profile.