Baby Stroller Frame with Pivoting Segments for Compact Retraction
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Solution Overview
Problem
Existing baby stroller frames occupy a lot of space when retracted and have inconvenient retracting operations due to their unreasonable frame designs.
Innovation Solution
A baby stroller frame with a retracting-stretching device that allows for a compact retraction by pivotally connecting the front and rear legs and carrying stands, enabling them to move in a coordinated manner to occupy less space and facilitate easy operation, featuring a device skeleton, movable mount, locking member, and elastic elements for smooth and secure retraction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the baby stroller frame uses a conventional fixed structure, then the frame is simple and easy to manufacture, but the frame occupies a large space when retracted and is inconvenient to operate
Solution Approach 1:
The frame is divided into multiple segments including front leg, rear leg, front carrying stand, and rear carrying stand, each capable of independent pivotal movement. This segmentation allows the frame to be divided into movable parts that can be retracted independently, reducing the overall volume when collapsed while maintaining structural integrity through the pivotal connections.
Solution Approach 2:
The frame transitions from a static fixed structure to a dynamic structure with pivotal connections that allow movement between stretched and retracted positions. The dynamic characteristics enable the frame to adapt its configuration based on usage needs, providing both ease of operation and compact storage volume through controlled motion rather than rigid fixed positions.
2Ease of operation
If the baby stroller frame uses a conventional structure, then the manufacturing process is simple, but the retracting operation is inconvenient
Solution Approach 1:
The retracting operation merges the movement of multiple frame components (front leg, rear leg, front carrying stand, rear carrying stand) into a coordinated sequence through the pivotal connections. This merging allows a single retraction action to simultaneously move multiple parts, improving operational convenience without requiring complex separate mechanisms for each component.
Solution Approach 2:
The pivotal connections and geometric relationships between frame components enable the retracting mechanism to self-coordinate and self-regulate the movement sequence. The structure itself guides the retraction process through its geometric constraints, reducing the need for external control mechanisms and simplifying manufacturing while maintaining ease of operation.
3Reliability
If the frame components are designed to move independently, then the retraction is smooth and controlled, but the structure becomes more complex
Solution Approach 1:
The pivotal connections serve as intermediary elements that mediate between the frame components, enabling smooth and controlled relative movement. These intermediaries provide the necessary rotational freedom while maintaining structural integrity, allowing controlled motion without requiring complex actuation mechanisms for each individual component.
Solution Approach 2:
The pivotal connections perform multiple functions simultaneously: they enable relative movement between components, maintain structural integrity during movement, and guide the retraction sequence. This multi-functionality reduces the need for separate specialized mechanisms, achieving reliable controlled motion without proportionally increasing structural complexity.
Data Source
AI summary
The disclosure provides a baby stroller frame switchable between a stretched position and a retracted position, comprising a retracting-stretching device, a front leg, a rear leg, a front carrying stand, and a rear carrying stand. The front leg is pivotally connected to the retracting-stretching device. The rear leg is pivotally connected to the retracting-stretching device. The rear leg and the front leg perform a stretching or retracting movement in respect to each other by assistance of the retracting-stretching device. The front carrying stand is pivotally connected to the retracting-stretching device. The rear carrying stand is pivotally connected to the retracting-stretching device. The rear carrying stand and front carrying stand perform a stretching or retracting movement in respect to each other by assistance of the retracting-stretching device.