Stroller Handle Locking Assembly for Compact Folding
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Solution Overview
Problem
Conventional strollers are not lightweight, difficult to fold compactly, and have complex folding mechanisms, which makes them cumbersome to use, especially in public transportation.
Innovation Solution
A stroller design with a handle assembly and locking mechanism that allows easy and compact folding through rotating movements of the handle and leg components, facilitated by a linking component and resilient biasing system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If conventional stroller structures are used, then the stroller provides basic functionality, but it becomes heavy and difficult to fold compactly
Solution Approach 1:
The stroller is divided into separate functional modules: handle assembly, locking component, leg assemblies, and wheel assemblies. Each module can be independently manipulated during folding, allowing the stroller to be collapsed into a compact configuration without requiring excessive force or complex coordinated movements.
Solution Approach 2:
The stroller employs dynamic folding mechanisms where the locking component transitions between locked and unlocked states, and various assemblies rotate relative to each other. This dynamic behavior allows the stroller to easily transition between deployed and folded states without requiring permanent structural changes or excessive force.
2Ease of operation
If conventional folding mechanisms are used, then the stroller can be folded, but the folding sequence becomes complicated and difficult to operate
Solution Approach 1:
Multiple folding functions are merged into a single integrated locking component. When the locking component is actuated, it simultaneously controls the folding of the handle assembly, front leg assembly, and rear leg assembly. This consolidation reduces the folding mechanism to a simple single-action operation rather than requiring coordination of multiple separate mechanisms.
Solution Approach 2:
The locking component serves multiple functions: it locks and unlocks the handle assembly, locks and unlocks the front leg assembly, and locks and unlocks the rear leg assembly. This multi-functionality eliminates the need for separate locking mechanisms for each assembly, simplifying the overall folding operation to a single control action.
3Volume of moving object
If the stroller is designed for compact folding, then portability improves, but the structural complexity increases
Solution Approach 1:
The stroller assemblies are arranged to nest within each other when folded. The front leg assembly nests within the handle assembly, and the rear leg assembly nests within the front leg assembly. This nested configuration achieves maximum compactness while using simple rotational and telescoping movements rather than complex folding mechanisms.
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 compact folding of the stroller, enhancing portability and usability, particularly in public transportation scenarios.
Implementation Method 1
a resilient component abutting against the locking component to bias the locking component to engage with the front leg
Data Source
AI summary
A stroller includes a front leg, a rear leg, a handle assembly and a locking component. The rear leg is rotatably connected to the front leg. The handle assembly is rotatably connected to the front leg. The handle assembly includes a lower handle portion and an upper handle portion rotatable relative to the lower handle portion. The upper handle portion and the lower handle portion are tubular structures. The locking component is movably disposed on the handle assembly. The locking component engages with the front leg or the rear leg for restraining a rotating movement of the handle assembly and is further driven by a rotating movement of the upper handle portion relative to the lower handle portion to disengage from the front leg or the rear leg for allowing the rotating movement of the handle assembly.