Child Carrier Headrest Locking Mechanism for Easy Adjustment
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Solution Overview
Problem
Conventional child restraint systems face difficulties in adjusting the reclined angle of the base portion and the position of the headrest relative to the seat body, often requiring disconnection of vehicle anchors or belts for access, making the adjustment process complicated and obstructed.
Innovation Solution
A child restraint carrier with a locking mechanism that includes a driving component, first and second engaging modules, and a recovering component, allowing easy adjustment of the headrest relative to the seat body without disconnection of vehicle anchors or belts, utilizing an inclined protrusion to disengage the second engaging module from the first engaging module for movement, and a rivet to connect the headrest, driving component, and second engaging module.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the conventional child restraint system is secured on a vehicle by a lower anchor or vehicle belt, then the base portion can be adjusted to a proper reclined angle, but access to the recline actuator is obstructed by the seat back of the vehicle, requiring disconnection of the lower anchor or vehicle belt for adjustment
Solution Approach 1:
The patent introduces a notched structure on the base body that provides a new spatial dimension for accessing the recline actuator. The notch creates an opening through which the actuator can be reached from the front of the carrier, bypassing the obstruction caused by the vehicle seat back. This dimensional change in access path eliminates the need to disconnect anchors or belts for actuator adjustment.
Solution Approach 2:
The notched structure acts as an intermediary element between the recline actuator and the user's hand. The notch provides a clear pathway and mechanical interface that allows the user to operate the actuator without direct line-of-sight access or physical contact with the actuator housing, thereby resolving the access obstruction problem.
2Adaptability or versatility
If the headrest position relative to the seat body is adjusted to fit a child, then the child restraint system can accommodate different children, but the adjustment operation is complicated in conventional systems
Solution Approach 1:
The patent employs a dynamic locking mechanism consisting of a driving component with an inclined protrusion that interacts with a second engaging module. When the user applies force to the driving component, the inclined protrusion rides up the slope of the engaging module, automatically triggering the release of the headrest from its locked position. This dynamic interaction converts simple linear motion into the complex sequence of releasing and repositioning the headrest, making the adjustment operation simple and intuitive.
Solution Approach 2:
The locking mechanism is designed to be self-actuating through the inclined protrusion geometry. The user's pulling motion on the driving component automatically generates the necessary mechanical advantage to disengage the locking components without requiring separate manual operations. The system serves itself by converting the user's simple pulling action into the complete headrest release and repositioning sequence.
Data Source
AI summary
A child restraint carrier includes a seat body, a headrest and a locking mechanism. The headrest is movably installed on the seat body. The locking mechanism is for allowing or restraining a movement of the headrest relative to the seat body. A position of the headrest relative to the seat body can be adjusted easily by the locking mechanism to fit a child. Therefore, the present invention has an advantage of easy adjustment.