Stroller Seat Lifting Apparatus and Stroller Comprising Same
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Solution Overview
Problem
Existing stroller seats have height-adjustment mechanisms with exposed rods that hinder normal folding and pose safety hazards.
Innovation Solution
A stroller seat lifting apparatus with a lifting platform, unlocking element, resilient element, and positioning part, allowing height adjustment within a chamber without exposed rods, using multiple limiting parts for secure locking and unlocking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a traditional height-adjustment mechanism with exposed rods is used, then the seat height can be adjusted, but the exposed rods affect normal folding and pose safety hazards
Solution Approach 1:
The lifting platform is received within the chamber formed by the base and the frame, nesting the height-adjustment mechanism inside the stroller structure. This eliminates exposed rods while maintaining height adjustment capability through the lifting platform that can be raised or lowered within the chamber to different positions defined by the limiting parts.
2Adaptability or versatility
If the lifting platform is made adjustable in height, then consumer preferences for different heights are satisfied, but exposed structural elements affect aesthetics and safety
Solution Approach 1:
The lifting platform and its adjustment mechanism are nested within the chamber, concealing all structural elements including the limiting parts and positioning mechanisms. This provides a clean, aesthetic appearance from the outside while maintaining full height adjustability functionality through the concealed mechanism.
3Reliability
If multiple limiting parts are used for secure locking, then the locking reliability is improved, but the device complexity increases
Solution Approach 1:
The chamber wall is segmented with multiple limiting parts positioned at different heights, each limiting part acting as an independent locking point. The positioning part engages with one limiting part at a time to lock the lifting platform at specific height levels. This segmentation provides reliable multi-position locking while keeping each individual limiting part simple in structure.
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 safe and reliable height adjustment of stroller seats without affecting folding, eliminating safety hazards and maintaining aesthetic appeal.
Implementation Method 1
a resilient element, and a positioning part... the resilient element is in contact with the first contact surface and applies a force towards the second position to the positioning part
Data Source
AI summary
A seat lifting apparatus includes a lifting platform attached to a seat. The lifting platform includes an unlocking element, a resilient element, and a positioning part. The positioning part comprises first and second contact surfaces and can move between first and second positions. The resilient element contacts the first contact surface and applies a force towards the second position. The unlocking element contacts the second contact surface and applies a force towards the first position. The base is disposed on a frame and includes a chamber. The lifting platform moves up and down within the chamber. The chamber includes limiting parts in the vertical direction. When the positioning part is in the second position, it matches with the limiting part to lock the seat height, and when the positioning part is in the first position, it separates from the limiting part to adjust the seat height.