Wire Type Window Regulator Fixation Stability
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Solution Overview
Problem
Conventional wire type window regulators face deformation issues due to the lack of fixation of the guide rail to the vehicle's door panel, relying solely on wire guide members for support, which can lead to deformation under load.
Innovation Solution
A wire type window regulator design that fixes both the guide rail and wire guide member to the vehicle's door panel using a metal fixing member, with the guide rail sandwiched between the door panel and the fixing member, and a wire guide member with a supporting portion and elastic locking mechanism to secure the guide rail and wire guide member.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the wire guide member is fixed to the door panel while the guide rail is only fitted to the wire guide members, then the wire guide member can support the glass movement forces, but the guide rail and wire guide member may deform under load due to insufficient fixation
Solution Approach 1:
The patent merges the fixation function into a single integrated fixing member that simultaneously secures both the guide rail and wire guide member to the door panel. This combining of fixation targets into one operation eliminates the previous weakness where only the wire guide member was fixed, thereby preventing deformation of both components under load.
Solution Approach 2:
The fixing member is designed to perform preliminary fixation of both the guide rail and wire guide member to the door panel before operation. This advance securing ensures that both components are properly positioned and stabilized against deformation from the start, rather than allowing deformation to occur and then attempting correction.
2Device complexity
If the guide rail is not fixed to the door panel but only fitted to the wire guide members, then the structure is simpler, but the wire guide member deforms under the full load of glass movement
Solution Approach 1:
The patent combines the fixation of the guide rail and wire guide member into a single operation using one fixing member, rather than requiring separate fixation mechanisms for each component. This merged approach maintains structural simplicity while ensuring both components are securely attached to the door panel, preventing wire guide member deformation.
3Strength
If both the guide rail and wire guide member are fixed to the door panel using a fixing member, then deformation is reduced and structural integrity is maintained, but the fixation structure becomes more complex
Solution Approach 1:
The patent applies the merging principle by using a single fixing member that performs the dual function of securing both the guide rail and wire guide member to the door panel. This integration reduces the overall fixation structure complexity compared to using separate fixing mechanisms for each component, while still achieving the goal of preventing deformation and maintaining structural integrity.
Data Source
AI summary
A wire type window regulator includes a guide rail, a wire driving mechanism, and a wire guide member. The guide rail guides a slider base to freely move up and down. A window glass is fixed to the slider base. The wire driving mechanism moves the slider base up/down along the guide rail via a drive wire. The wire guide member is disposed on at least one of an upper end and a lower end of the guide rail. The wire guide member changes a routing direction of the drive wire wound around the wire guide member. The wire guide member supports a fixing member that is inserted through the guide rail and that fixes the guide rail and the wire guide member to the vehicle door panel.