Sunroof Visor Mounting Bracket Inversion for Low Profile
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Solution Overview
Problem
Conventional sunroof visor mounting structures face issues with high mounting positions, susceptibility to loads, and aerodynamic inefficiencies, making it difficult to achieve a low and sporty shape while ensuring rigidity and smooth mounting.
Innovation Solution
A mounting structure for a sunroof visor with brackets that include an extended supporting portion and an engagement portion, allowing the visor to be fixed at a lower position on the vehicle roof, featuring a toppled 'U' shape and slanted edges for improved adjustability and engagement, along with an elastic molding for enhanced stability and aerodynamics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the upper portion of the hook is fixed to the roof surface for mounting the sunroof visor, then the mounting position can be achieved, but the height of the mounting position and the height of the hook itself become large, causing the hook to be more affected by load and the mounting position to be more susceptible to thermal expansion
Solution Approach 1:
Instead of fixing the upper portion of the hook to the roof surface, the invention inverts the mounting approach by fixing the lower base end of the mounting bracket to the roof surface. This inversion reduces the effective height of the mounting structure and moves the fixed connection point to a more stable, lower position that is less susceptible to thermal expansion and load effects.
Solution Approach 2:
The invention transitions from a vertical mounting approach (fixing the upper portion) to a horizontal extension approach (fixing the lower base end and extending forward). This dimensional change allows the visor to be mounted on the forward side of the opening section while maintaining stability, effectively reducing the vertical height component that contributes to susceptibility to load and thermal expansion.
2Device complexity
If the sunroof visor is mounted at a high position, then the mounting structure can be simplified, but the exterior appearance becomes less sporty and aerodynamic performance deteriorates
Solution Approach 1:
The invention inverts the conventional high-position mounting approach by mounting the visor on the forward side of the opening section at a lower position. This is achieved by fixing the lower base end of the mounting bracket to the roof surface and extending the upper portion forward, thereby achieving a sporty, low-profile appearance without significantly increasing mounting structure complexity.
3Adaptability or versatility
If the mounting bracket is formed with a bent L-shape to extend forward, then the visor can be mounted on the forward side, but the bent portion may come into contact with the flange during engagement, preventing smooth mounting
Solution Approach 1:
The invention segments the mounting bracket into distinct functional portions: a lower base end for fixing to the roof surface, an intermediate portion that may be bent forward, and an upper portion for fixing the visor. This segmentation allows the intermediate portion to be optimized for engagement smoothness (reducing interference with the flange) while maintaining the forward-side mounting capability through the bent configuration.
Solution Approach 2:
The invention applies local quality by making only the necessary portion of the mounting bracket bent forward (the intermediate portion), while keeping other portions straight and optimized for their specific functions. This localized bending minimizes interference with the flange during engagement while still achieving the forward-side mounting position, thereby maintaining mounting smoothness.
Data Source
AI summary
Provided is a structure enabling mounting at a lower position and on a forward side of an opening section. A sunroof visor is to be installed in a vehicle including: the opening section formed on a roof portion; and a sunroof capable of freely opening the opening section. The opening section possesses an edge portion extending downward and having a thin-walled structure vertically composed of: corner edge sections as vertically short edges; slanted edge sections; and vertically elongated edge sections. The sunroof visor is to be fixed to the forward side of the opening section through brackets. Each bracket includes: an extended supporting portion extended forward from the opening section and used to fix the sunroof visor; and an engagement portion engageable with one vertically elongated edge section after being moved thereto from one corner edge section or slanted edge section, for coupling the sunroof visor.