Window Regulator Wire Guide Rail Integration
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Solution Overview
Problem
The existing wire driving type window regulators have a complex construction and increased number of parts due to the wire supporting portion, leading to higher costs and weight.
Innovation Solution
A window regulator design where the ascending-side wire between the driving portion and the pulley is positioned on the guide rail to serve as a wire supporting configuration, eliminating the need for additional parts and simplifying the construction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a wire supporting portion is added to support the ascending-side wire between the driving portion and the turnaround portion, then the wire can be prevented from contacting the door panel and abnormal noise can be prevented, but the number of parts increases and the construction becomes complicated
Solution Approach 1:
The guide rail is designed to integrate both the wire supporting function and the structural guiding function. The flat-plate portion of the guide rail directly supports the ascending-side wire, eliminating the need for a separate wire supporting portion while maintaining the ability to prevent wire contact with the door panel and prevent abnormal noise.
Solution Approach 2:
The guide rail serves multiple functions: it guides the carrier plate movement, supports the ascending-side wire during operation, and prevents the wire from contacting the door panel. This multi-functional design eliminates the need for additional dedicated wire supporting parts.
2Reliability
If a wire supporting portion is added to support the ascending-side wire, then the wire can be prevented from contacting the door panel, but the weight of the window regulator increases
Solution Approach 1:
The wire supporting function is merged into the existing guide rail structure. The flat-plate portion of the guide rail directly supports the ascending-side wire, eliminating the need for additional weight-bearing components while maintaining the prevention of wire contact with the door panel.
3Reliability
If a wire supporting portion is added to support the ascending-side wire, then abnormal noise can be prevented, but the cost of the window regulator increases
Solution Approach 1:
The wire supporting function is integrated into the existing guide rail structure through the flat-plate portion, eliminating the need for additional parts. This reduces manufacturing complexity, assembly steps, and overall production cost while maintaining the ability to prevent vibration noise.
Solution Approach 2:
The guide rail serves multiple functions including guiding the carrier plate and supporting the ascending-side wire to prevent abnormal noise. This multi-functionality reduces the total part count and manufacturing cost compared to having separate dedicated components for each function.
Data Source
AI summary
A window regulator includes a carrier plate to support a window glass of a vehicle, a guide rail along an ascending/descending direction of the window glass to slidably support the carrier plate, a wire to pull the carrier plate, a driving portion arranged at one end of the guide rail in the ascending/descending direction to drive the wire, and a turnaround portion arranged at an other end of the guide rail in the ascending/descending direction to turn the wire around. The wire arranged between the turnaround portion and the carrier plate is positioned shifted from the guide rail. The wire arranged between the driving portion and the turnaround portion is positioned on the guide rail to push and contact the guide rail.