Carrier Plate Claw Layout for Window Regulator Cable Routing
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Solution Overview
Problem
Cable intrusion into gaps between rotation prevention claws and elastic claws during assembly of a carrier plate on a guide rail leads to incorrect routing and reduced assembly workability in window regulators.
Innovation Solution
A carrier plate design with a rotation prevention claw and an elastic claw configuration that prevents rotation and guides cables, ensuring correct positioning and smooth movement, enhancing assembly workability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the carrier plate is designed with rotation prevention claws and elastic claws to prevent rattling, then the stability and anti-rattling performance are improved, but the cable may intrude into the gap between the claws during assembly, causing incorrect routing and reduced assembly workability
Solution Approach 1:
The carrier plate is divided into functional zones: the cable accommodation portion is separated from the rotation prevention claw region, and the elastic claw is positioned to contact the flange portion rather than the base portion. This segmentation prevents cable intrusion into the claw gap while maintaining anti-rattling functionality.
Solution Approach 2:
The flange portion of the guide rail acts as an intermediary element. The elastic claw contacts the flange portion to provide anti-rattling support, while the cable is routed through the accommodation portion. This intermediary structure prevents direct interference between the cable and the elastic claw, resolving the assembly workability issue.
2Stability of the object's composition
If the elastic claw is positioned to contact the base portion of the guide rail, then the anti-rattling effect is enhanced, but the cable cannot move from the gap between the rotation prevention claw and elastic claw, requiring redoing of assembly
Solution Approach 1:
The contact point of the elastic claw is moved from the base portion (lower dimension) to the flange portion (upper dimension). This dimensional change in positioning allows the cable to pass freely through the accommodation portion without being blocked by the elastic claw, while the anti-rattling function is maintained through contact with the flange portion.
3Stability of the object's composition
If the rotation prevention claw and elastic claw are positioned close together to prevent rotation, then the rotation prevention capability is improved, but the gap between them may trap the cable during assembly, reducing assembly efficiency
Solution Approach 1:
The cable routing function is extracted and assigned to the dedicated cable accommodation portion, separate from the rotation prevention function performed by the claws. The cable is guided through this accommodation portion, which is positioned away from the gap between the rotation prevention claw and elastic claw, preventing cable entrapment while maintaining rotation prevention capability.
Data Source
AI summary
A carrier plate includes an elastic claw that includes a leading-end portion located, in a case where a base body is viewed along a sliding direction of the carrier plate, in a position overlapping with a rotation prevention claw in a direction orthogonal to the sliding direction and a width direction, and the leading-end portion is in contact with a flange portion to cause the leading-end portion and the rotation prevention claw to hold the flange portion therebetween.