Movable Headrest Height Controller with Friction Lock
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing child restraints lack the ability to customize the height of the headrest to accommodate children of different sizes effectively, limiting comfort and safety.
Innovation Solution
A child restraint system with a movable headrest and a headrest-height controller that allows caregivers to lock the headrest at any desired elevation between fully raised and fully lowered positions, using a friction lock mechanism to secure the headrest in place.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed headrest is used in the juvenile seat, then the structure is simple and reliable, but the headrest height cannot be customized to accommodate children of different sizes
Solution Approach 1:
The headrest is designed as a movable component that can be adjusted to different heights along a guide rail, transforming from a static fixed structure to a dynamic adjustable one. This allows the headrest height to be customized for children of different sizes while maintaining a relatively simple overall structure through the use of a guide rail and friction lock mechanism.
2Adaptability or versatility
If a movable headrest with continuous adjustment is implemented, then headrest height customization is achieved, but the locking mechanism complexity increases
Solution Approach 1:
The friction lock mechanism is designed to automatically engage and lock the headrest at any position along the guide rail without requiring additional locking components or complex mechanisms. The system self-regulates through friction between the lock component and the guide rail, eliminating the need for separate locking devices at each adjustment position.
Solution Approach 2:
The patent replaces traditional mechanical locking mechanisms (such as notches, pins, or springs) with a friction-based locking system. This substitution simplifies the locking mechanism by using continuous friction contact along the guide rail rather than discrete mechanical engagement points, reducing overall mechanism complexity.
3Ease of operation
If the actuator handle is positioned for easy gripping by caregivers, then ease of operation is improved, but the space required in the headrest area increases
Solution Approach 1:
The actuator handle is designed with specific local qualities including an ergonomic shape and appropriate dimensions (e.g., 0.5-1.5 inches in relevant dimensions) to facilitate easy gripping by caregivers. The handle is positioned at the front top side of the movable headrest, optimizing accessibility while minimizing the space it occupies within the headrest area.
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
Enables customizable headrest height to suit various child sizes, enhancing comfort and safety by ensuring proper support and positioning during use.
Implementation Method 1
The headrest-friction lock provides means for engaging the mount rail in the LOCKED mode to block movement of the movable headrest relative to the backrest at a selected one of any and all elevation points along the headrest-travel path
Data Source
AI summary
A child car seat includes a seat bottom, a backrest extending upwardly from the seat bottom, and a movable headrest mounted to be moved on the backrest. The child car seat also includes a controller for changing the elevation of the movable headrest relative to the underlying seat bottom.