Stroller Brake Mechanism Linkage Simultaneous Wheel Braking
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Solution Overview
Problem
Conventional brake mechanisms for strollers are ineffective in simultaneously braking both rear wheels, leading to potential turnover or slipping, especially at high speeds or on rough terrain, posing a safety risk to the baby.
Innovation Solution
A brake mechanism featuring a linkage system with an active brake device and a passive brake device, allowing for simultaneous braking of both wheels by using a linkage part that connects the active brake device on one wheel base to the passive brake device on the other, enabling quick engagement and disengagement through a rotating driving part.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional brake mechanism with a single brake pedal is used, then the structure is simple, but only one wheel can be braked at a time, reducing braking effectiveness and safety
Solution Approach 1:
The brake mechanism is divided into two independent brake units (first brake unit and second brake unit), each capable of braking one wheel. This segmentation allows both wheels to be braked simultaneously while maintaining a modular structure that doesn't significantly increase overall complexity.
Solution Approach 2:
The two brake units are merged through a common pedal linkage system. The pedal linkage connects the first and second pedals, allowing a single user action to activate both brake units simultaneously, thus combining the braking function while maintaining operational simplicity.
2Speed
If a single brake pedal is used, then the operation is simple, but the braking speed and response time are insufficient for emergency situations
Solution Approach 1:
The brake mechanism is designed with pre-positioned brake blocks adjacent to the wheel treads. When the pedal is pressed, the brake blocks are already in position to immediately contact the wheel treads, eliminating any delay in braking action and enabling rapid response in emergency situations.
3Reliability
If conventional brake linkage designs are used, then the structure is straightforward, but simultaneous braking of both wheels cannot be achieved, creating safety hazards
Solution Approach 1:
The brake linkage incorporates a dynamic pedal connection mechanism that allows the first and second pedals to move independently yet simultaneously. This dynamic design enables both brakes to be activated at the same time through a single user action, improving safety without requiring a overly complex fixed linkage structure.
Data Source
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AI summary
A brake mechanism (20, 100, 200, 300, 400, 500) for a stroller (10) includes a first wheel base (22, 302, 402, 502) and a second wheel base (24, 102, 202, 304, 404, 504), a linkage part (26), a passive brake device (30, 308, 408, 508) movably connected to the first wheel base (22, 302, 402, 502) and connected to the linkage part (26), and an active brake device (28, 104, 204, 306, 406, 506) disposed on the second wheel base (24, 102, 202, 304, 404, 504) and connected to the linkage part (26). The active brake device (28, 104, 204, 306, 406, 506) is used for moving the passive brake device (30, 308, 408, 508) via the linkage part (26) when a driving part (34, 108, 212, 312, 412, 512) of the active brake device (28, 104, 204, 306, 406, 506) rotates between a locking position and a releasing position.