Child Car Seat Back Assembly With Linked Headrest and Side Wings
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current child car seats have complex structures that are difficult to operate, particularly in adjusting the height of the headrest and width of the side wings to accommodate children of different body sizes.
Innovation Solution
A seat back assembly with a headrest and side wings that are slidable and foldable, featuring a driving member that adjusts the side wings when the headrest is moved, simplifying the operation by allowing simultaneous adjustment of the headrest height and side wing width using a single driving member.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the headrest height and side wing width are adjusted separately using independent mechanisms, then the adaptability to different body sizes is improved, but the device complexity increases and ease of operation deteriorates
Solution Approach 1:
The patent combines the headrest height adjustment mechanism and side wing width adjustment mechanism into a single integrated system. The driving member, which moves along the guide post when the headrest is adjusted, is mechanically coupled to push the side wings outward, enabling both adjustments to occur simultaneously through one operation rather than requiring separate mechanisms
Solution Approach 2:
The driving member serves multiple functions: it acts as both the actuator for headrest height adjustment and the actuator for side wing width adjustment. This multi-functional component eliminates the need for separate adjustment mechanisms, reducing overall device complexity while maintaining full adaptability
2Adaptability or versatility
If independent adjustment mechanisms are used for headrest and side wings, then the adaptability is improved, but the ease of operation deteriorates due to multiple adjustment steps
Solution Approach 1:
The patent merges the adjustment operations by coupling the headrest movement with side wing deployment through the driving member. When the user adjusts the headrest height, the driving member automatically pushes the side wings outward, combining what would otherwise be two separate adjustment operations into one simple action
Solution Approach 2:
The system performs the side wing adjustment automatically as a consequence of headrest adjustment. The driving member self-activates the side wing deployment mechanism through its own movement along the guide post, eliminating the need for a separate user operation to adjust the side wings
Data Source
AI summary
The present disclosure discloses a seat back assembly including a backrest, a headrest and a side wing. The headrest is slidably installed at an upper end of the backrest, and the side wing is disposed on a side of the backrest and is capable of folding and unfolding relative to the backrest. The seat back assembly further includes a driving member, which is disposed on the backrest or the headrest and moves along with the headrest relative to the backrest. The headrest at least, relative to the backrest, has an initial position close to the backrest and an operation position driving the side wing to unfold relative to the backrest. The side wing is folded on the backrest when the headrest slides to a position between the initial position and the operation position.