Child Car Seat Armrest Locking Assembly for Easy Pivot Adjustment
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Solution Overview
Problem
Traditional child car seat armrests are structurally complex and difficult to operate, lacking a simple and convenient adjustment mechanism.
Innovation Solution
A simplified adjusting device for child car seat armrests featuring a pivotable armrest support with a coupling portion, a button, and an engaging assembly, including a spring member and inclined surfaces, allowing easy pivoting between horizontal and vertical positions using a single button operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional adjustable armrest mechanisms are used, then the armrest can be adjusted, but the structure becomes complex and difficult to operate
Solution Approach 1:
The armrest structure is divided into separate functional components: the armrest body, the pivot mechanism with engaging structures, the button for actuation, and the spring member for biasing. This segmentation allows each component to perform its specific function independently, simplifying the overall structure while maintaining adjustability functionality.
Solution Approach 2:
The complex locking and unlocking mechanisms are extracted and replaced with a simple button-operated engaging assembly. The button connects to an engaging block that interacts with engaging notches on the armrest support, eliminating the need for complicated mechanical linkages while achieving the same locking effect.
2Adaptability or versatility
If traditional adjustable armrest mechanisms are used, then the armrest can be adjusted, but the operation becomes inconvenient
Solution Approach 1:
The spring member automatically biases the engaging block toward the engaging notches, providing self-locking functionality. When the button is released, the spring automatically returns the engaging block to its locked position, eliminating the need for additional mechanisms to maintain the adjusted position.
Solution Approach 2:
The engaging structures (engaging notches and engaging block) are pre-positioned on the armrest support and armrest respectively. The button is pre-connected to the engaging block, so that when the button is pressed, the engaging block is immediately released from the notches, enabling quick and convenient adjustment without complex操作步骤.
3Ease of operation
If simplified armrest adjustment mechanism is used, then operation becomes convenient, but reliability may be compromised
Solution Approach 1:
The spring member is pre-loaded to provide continuous biasing force on the engaging block, ensuring that the armrest remains securely locked in position during normal use. This pre-loaded spring acts as a cushioning force that maintains reliable engagement without requiring complex locking mechanisms.
Solution Approach 2:
The engaging notches and engaging block are designed with specific geometric shapes that ensure reliable engagement. The curved or inclined surfaces of the engaging structures guide the engaging block into proper alignment with the notches, ensuring consistent and reliable locking while maintaining simple operation.
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 easy and reliable adjustment of the armrest, reducing production costs and enhancing user convenience while maintaining safety and comfort for children.
Implementation Method 1
a spring member operably biasing the engaging block toward the coupling portion of the armrest support
Implementation Method 2
The first engaging structure includes a plurality of engaging notches formed in a side of the coupling portion facing the engaging assembly. The connecting portion of the armrest includes a bottom and a sidewall. The second engaging structure includes a plurality of protrusions axially inwardly protruding out from the sidewall of the connecting portion of the armrest.
Data Source
AI summary
An adjusting device for rotatable armrest of a child car seat is provided. The adjusting device comprises an armrest support; an armrest pivotally coupled to the armrest support; a button operably disposed in the armrest; and an engaging assembly movably disposed in the armrest between the button and the armrest support and constructed such that the armrest can be locked in position or can be pivotally adjusted with respective to the armrest support by selective alignment between the button and the engaging assembly and a selective engagement/disengagement between the engaging assembly and the armrest support.