Child Booster Seat Height Locking for One-Hand Adjustment
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Solution Overview
Problem
Existing child booster seats require inconvenient multiple manual operations for height adjustment, which can be cumbersome for users occupied with childcare or other tasks.
Innovation Solution
A height-adjustment mechanism for a child booster seat that includes a support structure with vertically spaced positioning holes, a latching component with a stop piece for locking, and a manually operable part for releasing and adjusting the locking engagement between the seat body and seat base, utilizing biasing members to facilitate easy height adjustment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple separate manual operations are used for height adjustment, then the seat can be adjusted to different heights, but the operation becomes inconvenient and complex for users
Solution Approach 1:
The patent combines multiple separate manual operations into a single integrated adjusting part. The adjusting part simultaneously controls the latching component and the support part extension, allowing users to adjust height with one hand operation rather than multiple separate steps.
Solution Approach 2:
The adjusting part serves multiple functions: it operates the latching component to release the support structure, extends the support part, and maintains the adjusted position. This multi-functional design eliminates the need for separate controls for each adjustment step.
2Ease of operation
If a single manually operable part is used for height adjustment, then operation convenience is improved, but the mechanism complexity increases
Solution Approach 1:
The support part is nested within the support structure, allowing it to extend and retract along the vertical axis. The latching component is integrated into this nested arrangement, engaging with positioning holes to secure the adjusted position, thereby achieving compact design despite multiple functions.
Solution Approach 2:
The biasing member automatically returns the adjusting part to its initial position after height adjustment, and the latching component automatically engages with the positioning holes to lock the support part in place. This self-service mechanism reduces the need for additional control elements.
3Adaptability or versatility
If the seat base is made vertically movable for height adjustment, then adaptability is improved, but the structural complexity increases
Solution Approach 1:
The support base is designed to be dynamically movable along the vertical axis rather than fixed. The latching component with positioning holes provides discrete stable positions, while the biasing member enables smooth movement between positions, creating a dynamic yet controllable adjustment system.
Solution Approach 2:
The support structure is divided into a fixed support structure and a movable support part. The support part can be independently adjusted to different heights by extending or retracting along the support structure, allowing modular height adjustment without redesigning the entire seat.
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 the seat body to be easily and securely adjusted in height using a single manually operable part, allowing for convenient height changes without the need for complex multi-step operations, improving user experience.
Implementation Method 1
a first biasing member for biasing the stop piece toward the positioning holes
Implementation Method 2
a second biasing member mounted between the seat base and the seat body for biasing the seat base away from the seat body
Data Source
AI summary
A child booster seat includes a seat body, a seat base coupled to and vertically movable relative to the seat body, and a height-adjustment mechanism mounted between the seat body and the seat base. The height-adjustment mechanism includes a support structure mounted co-movably to the seat body and formed with a plurality of positioning holes that are vertically spaced apart. The height-adjustment mechanism further includes a latching component coupled movably to the seat base. The latching component includes a stop piece for engaging a selected one of the positioning holes to releasably lock the seat body at a desired height relative to the seat base. The height-adjustment mechanism also includes a manually operable part for moving the stop piece away from the positioning holes to release locking engagement between the seat base and the seat body.