Telescopic Stroller Handle for One-Hand Compact Folding
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing infant stroller apparatuses struggle to collapse compactly, often requiring a second step or a fixed frame handle, which limits their convenience and space efficiency.
Innovation Solution
The stroller apparatus features a telescopic handle with an impeding part and actuating member, allowing the handle to automatically retract by rotating an armrest, which removes interference and enables the second tubular member to fold into the first, facilitating one-hand collapse.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a fixed frame handle is used, then the stroller provides stable support, but the collapsed size becomes larger
Solution Approach 1:
The handle is designed as a telescopic structure with movable segments that can extend and retract. During normal use, the handle extends to provide stable support. During collapse, the handle retracts to reduce the overall volume, directly resolving the contradiction between stability and compact size.
Solution Approach 2:
The handle is divided into multiple telescopic segments that can move independently. This segmentation allows the handle to change its effective length dynamically, providing both extended stability during use and reduced volume during collapse.
2Volume of moving object
If a pivoting frame handle is used, then the collapsed size is reduced, but a second step is required to move the handle after folding
Solution Approach 1:
The telescopic handle retraction is merged with the folding operation through the armrest actuation mechanism. Rotating the armrest simultaneously triggers both the folding action and the handle retraction, combining two steps into one unified motion that improves ease of operation.
Solution Approach 2:
The handle automatically retracts when the armrest is rotated during the folding process. The system uses the folding motion itself to drive the handle retraction without requiring a separate manual operation, making the process self-serving and more convenient.
3Extent of automation
If a telescopic handle with impeding part is used, then automatic retraction is enabled, but the device complexity increases
Solution Approach 1:
The impeding part is pre-positioned to automatically engage with the actuating member when the armrest rotates during folding. This preliminary positioning allows the handle to self-retract without requiring complex active control systems, achieving automation while limiting complexity.
Solution Approach 2:
The impeding part acts as an intermediary mechanical element that translates the armrest rotation motion into handle retraction. This simple mechanical intermediary enables automatic operation without requiring complex electronics or control systems.
Data Source
AI summary
An infant stroller apparatus includes a rear leg frame including a first side segment, a handle having a second side segment formed by at least a first and a second tubular member telescopically assembled with each other, an impeding part assembled with the second side segment and operable to create an interference that blocks retraction of the second tubular member into the first tubular member, and an armrest pivotally connected with the second side segment and provided with an actuating member disposed adjacent to the impeding part. A rotation of the armrest in a direction for collapsing the infant stroller apparatus can cause a displacement of the actuating member, which drives the impeding part in movement to remove the interference and allow retraction of the second tubular member into the first tubular member.