Vehicle Sliding Window Guide Rail Trim Board Fixing

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Solution Overview

Problem

The existing sliding window systems for vehicles face issues with smooth operation when the sliding panel is inclined relative to the rail, leading to deformation of the trim board and generation of creaking noises due to vibration, as the guide rail in the periphery of the sliding panel causes instability in fixing the trim board to the vehicle body.

Innovation Solution

A sliding window system that includes a guide rail integrated with the vehicle body, a sliding bracket with a sliding portion coupled to the guide rail, and a fixed portion attached to the sliding panel, featuring fitting holes for trim board clips to improve the fixing rigidity of the trim board by securing it to the guide rail.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a guide rail is provided in the periphery of the sliding panel to regulate its position, then the sliding operation is improved, but the trim board cannot be properly fixed to the vehicle body due to the guide rail occupying the attachment position

Engineering Contradiction:
Improvesliding operationVSAvoidfixing reliability of trim board
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The guide rail is divided into two functional segments: a sliding portion that interfaces with the sliding bracket to enable smooth operation, and a separate attachment portion that provides fitting holes for securing the trim board. This segmentation allows the guide rail to simultaneously fulfill both the sliding guidance function and the trim board fixation function without interference.

Inventive Principle:
Principle #1Segmentation

2Area of stationary object

If the trim board is fixed to cover the guide rail, then the guide rail is protected, but the end portion of the trim board remains unfixed and deforms under vibration causing creaking noises

Engineering Contradiction:
Improvecoverage area of trim boardVSAvoidcreaking noises from vibration
Core Design Contradiction:
Area of stationary objectVSObject-affected harmful factors

Solution Approach 1:

The guide rail's attachment portion with fitting holes serves a dual purpose: it provides attachment points for the trim board clips while simultaneously serving as the structural element that the trim board covers. The trim board effectively secures itself by being attached to the guide rail at its end portion, eliminating the need for separate fixation structures.

Inventive Principle:
Principle #25Self-service

Data Source

PatentEP3031643B1Sliding window for vehicle, and trim board fixing method
Publication Date: 2022.10.26 NISSAN MOTOR LIGHT TRUCK CO LTD
  • EP3031643B1 patent drawingFigure 1
  • EP3031643B1 patent drawingFigure 2
  • EP3031643B1 patent drawingFigure 3

AI summary

A sliding window for a vehicle includes: a sliding panel which is attached to a vehicle body in a slidable manner; a guide rail which is integrated with the vehicle body and extending in the slide direction of the sliding panel; and a sliding bracket which integrally includes a sliding portion slidably coupled to the guide rail and a fixed portion fixed to the sliding panel. The guide rail is provided with a fitting hole into which a clip of a trim board is fitted.