Telescoping Stroller Handle One-Hand Fold Mechanism
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Solution Overview
Problem
Telescoping handle strollers lack a one-hand fold mechanism, requiring multiple steps to fold, which is complicated and frustrating, whereas strollers with fixed or pivoting handles can fold easily with a one-hand mechanism, but lack the adjustability and compactness of telescoping handles.
Innovation Solution
A telescoping handle assembly with a first and second handle, coupling members, and a driving member that allows the second coupling member to move from a first to a second position, enabling the entire assembly to be folded with one hand by unlocking the engaging member from the frame, and allowing for adjustable handle lengths.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a telescoping handle is used to provide adjustability and compact fold, then handle adaptability and compactness are improved, but the folding operation becomes complex and cannot be performed with one hand
Solution Approach 1:
The patent combines the telescoping handle mechanism with the folding mechanism by integrating the driving member (cable) that controls both handle extension/retraction and frame folding. The release actuator on the second handle controls the cable tension, which simultaneously releases the locking mechanism and enables folding, merging two functions into one operational system.
Solution Approach 2:
The driving member (cable) serves multiple functions: it controls the telescoping handle length adjustment, locks the handle at desired positions, and enables the one-hand folding operation by releasing the locking mechanism. This multi-functional component allows a single actuator to control both handle adjustment and folding operations.
2Ease of operation
If a one-hand fold mechanism is implemented, then folding ease is improved, but the mechanism cannot be integrated with telescoping handle adjustability
Solution Approach 1:
The patent merges the one-hand fold mechanism with the telescoping handle system by using the same cable-driven locking mechanism for both functions. The release actuator triggers the cable to release the lock, enabling both the folding action and the telescoping handle operation through a single integrated system.
Solution Approach 2:
The locking mechanism controlled by the cable serves dual purposes: it maintains the telescoping handle at adjusted positions and enables the one-hand folding operation. This universal locking system allows the mechanism to adapt to both handle length adjustment and folding requirements.
3Reliability
If multiple steps are required to fold the stroller, then the telescoping handle locking mechanism can be secure, but the folding process becomes complicated and frustrating
Solution Approach 1:
The patent extracts the complex multi-step folding process into a single action by using the cable-driven release mechanism. Pulling the release actuator extracts the locking function from the folding process, allowing the entire folding sequence to be initiated and completed through one continuous motion rather than multiple discrete steps.
Solution Approach 2:
The cable is pre-tensioned and positioned to engage the locking mechanism in advance. When the release actuator is pulled, the pre-positioned cable immediately releases the lock, enabling the folding action to begin without requiring the user to perform preliminary unlocking steps or manual manipulation of separate components.
Data Source
AI summary
A telescoping handle assembly includes a first handle, a second handle, a first coupling member, a second coupling member and a driving member. The second handle is movably disposed in the first handle. The first coupling member is movably disposed in the first handle and the second handle. The second coupling member is movably disposed in the second handle. The driving member is coupled to the second coupling member and used for driving the second coupling member to move from a first position to a second position. When the second coupling member is located at the first position, the second coupling member is capable of moving with respect to the first coupling member. When the second coupling member is located at the second position, the first coupling member and the second coupling member are capable of moving together while the driving member is driven.