Stroller Pivotal Joint Structure for More Compact Folding
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Solution Overview
Problem
Conventional strollers have difficulty in further reducing the occupied space when folded, making them less convenient for carrying and storage.
Innovation Solution
Incorporating a pivotal joint structure that allows the front leg of the stroller to be further folded relative to the bottom pipe, utilizing connecting components, inner and outer fixing components, and a pin to facilitate this folding action.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the stroller is folded with conventional pivot joints, then the folding mechanism is simple, but the occupied space cannot be further reduced
Solution Approach 1:
The front leg assembly is segmented into multiple independent components: front leg, bottom pipe, and connecting component with pivotal joint structure. This segmentation allows each part to fold independently relative to others, enabling the front leg to fold further toward the rear leg and significantly reducing the horizontal occupied space of the folded stroller.
Solution Approach 2:
The pivotal joint structure implements a nested folding mechanism where the connecting component with inner fixing component and outer fixing component allows the front leg to be nested closer to the rear leg during folding. The inner and outer fixing components create a compact nested configuration that reduces the overall folded dimensions.
2Volume of moving object
If additional fixing components are added to enable further folding, then the folding compactness is improved, but the manufacturing complexity increases
Solution Approach 1:
The inner fixing component and outer fixing component are merged into an integrated connecting component assembly that connects the front leg to the bottom pipe. This merging approach consolidates multiple fixing functions into a unified structure, simplifying the manufacturing process while achieving the desired compact folding capability.
Solution Approach 2:
The connecting component acts as an intermediary element between the front leg and bottom pipe, providing the pivotal joint functionality. This intermediary component mediates the folding motion and allows the front leg to rotate relative to the bottom pipe, achieving compact folding without requiring complex direct connections between the main structural elements.
Data Source
AI summary
A pivotal joint structure is connected to a front leg and a bottom pipe of a stroller. The pivotal joint structure includes a connecting component disposed in the bottom pipe. A first end of the connecting component is fixedly connected to the front leg. The pivotal joint structure further includes an inner fixing component and an outer fixing component, which are disposed in the bottom pipe and connected to the bottom pipe. The connecting component is disposed between the inner fixing component and the outer fixing component, and the inner fixing component and the outer fixing component are rotatable around the connecting component. The front leg can be further folded relative to the bottom pipe by the pivotal joint structure. Therefore, the occupied space of the folded stroller can be further reduced, so as to facilitate carrying and storage when not in use.