Sunroof Wind Deflector Pivot Mounting Without Support Seat Deformation

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Solution Overview

Problem

Current wind deflector mounting methods for vehicle sunroofs cause material deformation, particularly to the support seat, leading to potential damage and reduced service life, complicating the assembly process.

Innovation Solution

A mounting structure for a wind deflector that uses pivot structures, such as pivot shafts, to connect struts to support seats without material deformation, allowing for a form-fit assembly and axial insertion, with axial limit structures to maintain the pivot angle within a predetermined range.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If material deformation is used to assemble the wind deflector (pressing the strut into the support seat), then the wind deflector can be pivotally mounted, but the support seat and strut suffer material damage and reduced service life

Engineering Contradiction:
Improveassembly processVSAvoidservice life of support seat
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

A pivot structure is introduced as an intermediary component between the strut and support seat. The pivot structure includes a pivot shaft that rotates within a pivot hole, with a pivot head connected to the strut and a pivot base connected to the support seat. This intermediary mechanism enables pivotal mounting without direct material deformation of the support seat or strut, thereby maintaining their service life while achieving the desired assembly.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Strength

If the support seat is strengthened to prevent damage during assembly, then component durability improves, but material deformation becomes difficult to occur which adversely affects the assembly process

Engineering Contradiction:
Improvestrength of support seatVSAvoidassembly process
Core Design Contradiction:
StrengthVSEase of manufacture

Solution Approach 1:

The pivot structure serves as a mediator that decouples the assembly process from the support seat structure. By introducing the pivot shaft, pivot head, and pivot base as separate components, the assembly process becomes independent of the support seat's material deformation characteristics. This allows the support seat to be strengthened without compromising the assembly process, as the pivot structure handles the connection and pivotal motion.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Adaptability or versatility

If the pivot structure allows full rotation, then pivoting freedom is maximized, but the wind deflector may rotate beyond the predetermined angle range causing functional issues

Engineering Contradiction:
Improvepivoting freedomVSAvoidpivot angle control
Core Design Contradiction:
Adaptability or versatilityVSStability of the object's composition

Solution Approach 1:

Axial limit structures are designed into the pivot structure to preemptively prevent over-rotation. The axial limit structure includes features such as a limit flange on the pivot shaft or corresponding limits on the pivot head/base that physically block rotation beyond a predetermined angle. This preliminary constraint ensures the wind deflector maintains its intended functional range while still allowing sufficient pivoting freedom for normal operation.

Inventive Principle:
Principle #9Preliminary anti-action

Data Source

PatentUS20250346102A1Mounting structure for wind deflector of sunroof of vehicle, wind deflector and sunroof
Publication Date: 2025.11.13 WEBASTO AG
  • US20250346102A1 patent drawing
  • US20250346102A1 patent drawing
  • US20250346102A1 patent drawing

AI summary

Disclosed are mounting structures for a wind deflector of a sunroof of a vehicle, having a first strut and a second strut disposed facing each other, and a sunroof frame having a first support seat for pivotally connected to the first strut and a second support seat for pivotally connected to the second strut, so that the wind deflector is pivotable about a pivot axis in an assembled state. The mounting structure may have a first pivot structure at an end of the first strut to allow the first strut to be pivotally connected to the first support seat. The first pivot structure is configured to be adapted to be axially assembled to the first support seat along the pivot axis. Disclosed are a corresponding: wind deflector, bearing structure for carrying the wind deflector, sunroof, vehicle and a method for assembling the wind deflector.