Multi-Sectional Vehicle Sun Visor with Pivoting Arm
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Solution Overview
Problem
Conventional sun visors are inefficient as they only cover light from either the front or side windows, leaving drivers exposed to bright light from the other direction, which can cause distraction and dangerous driving conditions.
Innovation Solution
A multi-sectional sun visor with a first section covering the front windshield and a second section that pivots to cover the side window, equipped with a light sensor to adjust transparency levels based on light intensity, using electrochromic materials and a pivoting arm for adjustable coverage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a conventional single-section sun visor is used, then it can block light from one window (front or side), but it cannot block light from both windows simultaneously
Solution Approach 1:
The sun visor is divided into two separate sections: a first section that blocks light from the front window and a second section that blocks light from the side window. This segmentation allows each section to independently cover different windows, resolving the contradiction by enabling multi-directional light blocking while maintaining simple individual structures.
Solution Approach 2:
The second section is made movable through a pivoting arm mechanism that allows it to rotate between a retracted position (not interfering with the first section) and an extended position (covering the side window). This dynamic capability enables the visor to adapt to different lighting conditions and block light from multiple windows simultaneously.
2Object-affected harmful factors
If a multi-sectional sun visor with pivoting mechanism is implemented, then light from both front and side windows can be blocked, but the device complexity increases
Solution Approach 1:
The pivoting arm mechanism is integrated within the structure of the sun visor itself, with the arm nested between the first and second sections. This nesting approach reduces overall device complexity by incorporating the pivoting mechanism into the existing structure rather than adding separate external components.
Solution Approach 2:
The pivoting arm is designed to be manipulated by the driver through simple motion, allowing the second section to be positioned as needed without requiring complex motors, sensors, or automated control systems. This self-service approach maintains light blocking capability while minimizing device complexity.
3Object-affected harmful factors
If electrochromic materials are used to adjust transparency dynamically, then light blocking efficiency improves, but energy consumption increases
Solution Approach 1:
The electrochromic materials change their optical properties (transparency/opacity) in response to light conditions, allowing the visor to dynamically adjust light blocking efficiency. This parameter change capability resolves the contradiction by enabling efficient light blocking when needed while potentially reducing energy consumption when light conditions are already favorable.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Effectively blocks external light from both the front and side windows, reducing glare and improving driver visibility by dynamically adjusting transparency in response to changing light conditions.
Implementation Method 1
The second body may adjust a transparency level thereof in response to the light level exceeding a predetermined light level
Data Source
AI summary
A multi-sectional sun visor disposed on at least a portion of a vehicle, including a first section comprising a first body disposed over a front windshield of the vehicle to prevent external light from passing therethrough, and a second section, including a second body to prevent the external light from passing therethrough, and a pivoting arm hingedly disposed at a first end within at least a portion of the second body and connected at a second end to the first body to rotate in a first direction toward the first body, and in a second direction at least partially away from the first body, such that the second body is at least partially disposed over a side window of the vehicle in the second position.