Adjustable Mirror Attachment With Swivel Friction Mechanism
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Solution Overview
Problem
Existing mirror systems for observing infants in rear-facing child safety car seats within vehicles lack flexibility and adjustability, making it difficult for drivers to obtain a clear view of the infant without obstructing their conventional rearview mirror.
Innovation Solution
A mirror device with a swivel attachment mechanism featuring concavity and convexity elements with slotted apertures and a biasing fastener, allowing for adjustable positioning and secure attachment to a vehicle's headrest, enabling up-down and side-to-side movement for optimal viewing angles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a fixed mirror attachment is used on the headrest, then the mirror provides stable support, but the driver cannot adjust the mirror angle to optimize viewing of the infant
Solution Approach 1:
The patent applies the dynamics principle by transforming the fixed mirror attachment into an adjustable one through a swivel mechanism. The mirror assembly can rotate horizontally and vertically, allowing the driver to dynamically adjust the viewing angle while maintaining stable support through friction engagement and spring biasing.
Solution Approach 2:
The patent implements parameter changes by modifying the attachment mechanism to include adjustable angular parameters. The swivel device allows change in orientation angles (horizontal and vertical) while maintaining structural stability through controlled friction and spring force, enabling parameter adjustment without excessive complexity.
2Reliability
If a simple attachment method is used, then the mirror is easy to install, but the mirror cannot be securely maintained in adjusted positions
Solution Approach 1:
The patent applies the self-service principle through the spring-biased friction engagement mechanism. The spring automatically maintains friction force between the swivel surfaces, allowing the mirror to self-maintain adjusted positions without additional locking mechanisms. The system self-regulates to hold the mirror securely while permitting manual adjustment when force is applied.
Solution Approach 2:
The dynamic friction engagement allows the attachment to transition between locked and adjustable states. The spring-maintained friction force provides secure holding in adjusted positions, while allowing controlled movement when the driver manually adjusts the mirror, achieving both reliability and adjustability.
3Illumination intensity
If the mirror is positioned to observe the infant clearly, then visibility is improved, but the conventional rearview mirror may be obstructed
Solution Approach 1:
The patent applies segmentation by separating the infant observation function from the conventional rearview mirror. The additional mirror mounted on the headrest provides dedicated infant visibility, while the conventional mirror remains available for general rearview purposes, dividing the viewing functions to avoid obstruction conflicts.
Solution Approach 2:
The patent introduces another dimension by adding a second mirror at a different spatial location (headrest vs. windshield). This creates multiple viewing planes and angles, allowing the driver to observe the infant from one position while maintaining the conventional mirror's functionality for other rearview needs, effectively adding a dimensional solution to the obstruction problem.
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
The mirror device provides a flexible and secure attachment system that allows for clear observation of infants in rear-facing car seats, enhancing the driver's visibility without obstructing the conventional rearview mirror, while allowing for easy manual adjustments.
Implementation Method 1
A biasing fastener extends through the slotted apertures to secure the concavity and convexity elements to each other and to bias the concave and convex working surfaces towards each other
Implementation Method 2
the concavity and convexity elements are frictionally maintained in a desired adjusted position with reference to each other
Data Source
AI summary
A mirror device for observing an infant in a rear-facing child safety car seat secured to the rear seat of a vehicle including a front seating area, a rear seating area, and a rear seat within the rear seating area, the rear seat having an upwardly-extending headrest. The mirror device includes a mirror and backing assembly having a rear surface, and an attachment connected to the rear surface for attaching the mirror device to the headrest. The attachment in turn includes a swivel device having a concavity element including a first bowl-like structure having a concave working surface; and a corresponding convexity element including a second bowl-like structure having a convex working surface configured to engage the concave working surface. The concavity and convexity elements are frictionally maintained in a desired adjusted position with reference to each other, while at the same time permitting manual adjustment.