Stroller Braking Mechanism Automatic Obstacle Activation
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Solution Overview
Problem
Conventional braking mechanisms for strollers require manual effort or bending to operate, making them inconvenient and hazardous, especially when trying to stop the stroller from moving forward or backward.
Innovation Solution
A braking mechanism utilizing a brake cable set, spring, connector, pair of brake shoes, brake band, and base, where the brake cable pushes the connector to move the brake shoes toward the brake band, generating friction for braking, with the option of serrated surfaces for enhanced friction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a pedal or handle controlled brake device is used, then a steady braking effect may be achieved, but the user must stamp on the pedal by foot or bend down to pull the handle by hand which is inconvenient and hazardous
Solution Approach 1:
The brake system automatically activates when the stroller encounters an obstacle. The cable is connected to the brake shoes through a connector, and when the stroller moves forward and hits an obstacle, the cable is pulled, which automatically moves the brake shoes to contact the brake band, creating friction to stop the stroller without requiring user intervention
Solution Approach 2:
The patent replaces the manual mechanical control system (pedal or handle) with an automatic mechanical response system. The cable acts as a trigger mechanism that converts the force from obstacle contact into automatic brake activation, eliminating the need for manual operation while maintaining reliable braking
2Reliability
If the brake shoes are disposed pivotally with respect to the center of the brake drum, then the brake shoes can hoop the brake drum pivotally to cease rotation, but the structure becomes more complex with multiple moving parts
Solution Approach 1:
The brake system is divided into distinct functional segments: the brake band that contacts the drum, the brake shoes that apply force to the band, the connector that transmits cable force, and the spring that provides return force. This segmentation allows each component to perform its specific function efficiently while maintaining overall system reliability
Solution Approach 2:
The brake shoes are designed to move dynamically between engaged and disengaged positions. The pivotal connection allows the brake shoes to rotate and contact the brake band only when needed (when the cable is pulled), and return to their original position when the cable force is released, providing controlled dynamic braking action
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Provides a safe, easy-to-use, and effective braking system that allows for steady braking without the need for manual effort, improving safety and convenience by allowing easy manipulation and maintaining a steady braking effect.
Implementation Method 1
The spring is located between the connector and the end of the cable secured to the base
Implementation Method 2
The pair of brake shoes are then caused to move toward the brake band and contact with the brake band, and thus generate friction therebetween, so as to achieve the purpose of braking
Data Source
AI summary
The present invention provides a braking mechanism comprising a brake cable set, a spring, a connector, a pair of brake shoes, a brake band, a base, and a brake drum. The brake cable set makes the connector move downwards upon braking, such that the connector coupled to the pair of brake shoes rotates to contact the brake band and thus cause friction, whereby achieving the object of braking.