Vehicle Window Retaining Element Fan-Like Adhesive Channels

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Solution Overview

Problem

Existing retaining elements for vehicle side windows require sealing devices to prevent adhesive escape and subsequent removal, complicating the attachment process.

Innovation Solution

A retaining element with a contact surface featuring fan-like channels to distribute adhesive evenly, eliminating the need for sealing devices and reducing adhesive leakage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If sealing devices are used to prevent adhesive escape, then adhesive containment is improved, but device complexity and attachment process complexity increase

Engineering Contradiction:

Improveadhesive containmentVSAvoidattachment process complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The contact surface is segmented into multiple channels that distribute adhesive flow throughout the intermediate space. This segmentation allows adhesive to be contained and distributed through controlled pathways without requiring external sealing devices, thus maintaining reliability while reducing complexity

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The channels act as intermediary structures between the filling opening and the intermediate space. They mediate adhesive flow by guiding it through controlled paths, eliminating the need for sealing devices while ensuring proper adhesive distribution and containment

Inventive Principle:

Principle #24Intermediary (Mediator)

2Strength

If adhesive is injected into the intermediate space, then bonding is improved, but adhesive leakage occurs requiring subsequent removal

Engineering Contradiction:

Improvebonding strengthVSAvoidattachment process simplicity

Core Design Contradiction:

StrengthVSEase of manufacture

Solution Approach 1:

The channels are pre-formed in the contact surface to guide adhesive flow before injection. This preliminary structure ensures that when adhesive is injected, it automatically follows the channel paths and distributes evenly, preventing leakage without requiring subsequent removal steps

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

Different regions of the contact surface are provided with channels of varying configurations to optimize local adhesive distribution. This ensures that adhesive is delivered precisely where needed for bonding while preventing overflow in other areas, maintaining ease of manufacture

Inventive Principle:

Principle #3Local quality

3Strength

If contact surface area is increased for adhesive bonding, then bonding strength is improved, but adhesive distribution uniformity deteriorates

Engineering Contradiction:

Improvebonding strengthVSAvoidadhesive distribution uniformity

Core Design Contradiction:

StrengthVSManufacturing precision

Solution Approach 1:

The contact surface is divided into multiple channels that branch out to cover the entire bonding area. This segmentation allows adhesive to reach all regions of the contact surface uniformly through the distributed channel network, maintaining both large contact area and uniform distribution

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The channel structure adds a dimensional element to the contact surface, creating a three-dimensional adhesive distribution network. This allows adhesive to flow through multiple levels and paths, ensuring uniform coverage across the entire contact surface area

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

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

Simplifies and accelerates the attachment process by ensuring sufficient adhesive wetting without escape, allowing for direct adhesive injection without intermediate space sealing.

Implementation Method 1

the contact surface has a plurality of channels (4) which are directed toward the filling opening (6) and are distributed over the contact surface (2a) in a fan-like manner

Methodology Applied

Scientific EffectFluid flow distribution:

Data Source

PatentUS11274485B2Retaining element for a vehicle side window that can be raised and lowered

Publication Date: 2022.03.15 SAINT GOBAIN SEKURIT FRANCE

AI summary

A retaining element for a side window of a vehicle, includes at least one contact section for securing to a first surface of the side window, wherein the contact section has a contact surface that is provided for being connected to the first surface via an adhesive, a securing section connected to the contact section and for securing to the vehicle, and a filling opening for injecting the adhesive into the intermediate space between the contact section and the first surface of the side window, wherein the contact surface has a plurality of channels that are directed toward the filling opening and are distributed over the contact surface in a fan-like manner.