Sunroof Guide Rail Split-Member Assembly for Faster Manufacturing
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Solution Overview
Problem
Conventional guide rail manufacturing for sunroof apparatuses is inefficient due to multi-step processes, making it difficult to shorten manufacturing time and improve production efficiency.
Innovation Solution
A guide rail configuration comprising an inner member and an outer member, where the outer member is fixed to the vehicle and coupled to the inner member, allowing for parallel manufacturing of these components, reducing the need for sequential processing steps and improving efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the guide rail is manufactured by aluminum extrusion method or aluminum drawing method with additional post-processing steps, then the guide rail achieves required structural integrity and functionality, but the manufacturing time is extended and production efficiency is reduced
Solution Approach 1:
The guide rail is divided into two separate members: an inner member that guides the drive shoe and an outer member that includes the fixed portion attached to the vehicle. These members are manufactured separately and then coupled together, eliminating the need for multi-step sequential manufacturing of a single integrated component and enabling parallel production processes.
Solution Approach 2:
The inner member and outer member are coupled together to form the complete guide rail assembly. This merging of separately manufactured components achieves the same structural integrity and functionality as a single-piece guide rail while significantly reducing total manufacturing time through parallel production.
2Reliability
If the guide rail is manufactured as a single integrated component through multiple sequential steps, then the guide rail achieves required functionality, but the manufacturing process complexity increases and production time extends
Solution Approach 1:
The guide rail functionality is segmented between two independent members with distinct roles. The inner member provides guidance functionality while the outer member provides mounting functionality, allowing each to be optimized and manufactured separately rather than requiring a complex multi-step process for a single integrated component.
Solution Approach 2:
The coupling structure between the inner and outer members is designed to be self-contained, where each member has integrated coupling portions that automatically align and connect. This self-service coupling mechanism eliminates the need for complex additional assembly steps while ensuring reliable functionality.
Data Source
AI summary
A guide rail for a sunroof apparatus includes an inner member and an outer member. The outer member is arranged on an outer side of the inner member in a width direction in an attached state where the guide rail is attached to a vehicle. The inner member guides a drive shoe of the sunroof apparatus. The outer member includes a fixed portion fixed to the vehicle. The outer member is coupled to the inner member.