Luggage Brake Control Device with Slope-Actuated Wire Mechanism
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Solution Overview
Problem
Conventional brake systems for wheeled luggage cases are inconvenient to operate, particularly in public transportation settings where luggage may roll away due to changes in speed or braking.
Innovation Solution
A brake system with a control device that includes a press positioning assembly, slide block, fixed pulley, brake wire, and resilient member, allowing for easy actuation of the brake mechanism by sliding the resisting convex block along a slope surface to control the brake wire, which engages the brake member to stop the wheel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional brake system is installed on wheeled luggage, then the wheel can be stopped when necessary, but the brake operation becomes inconvenient and difficult to control
Solution Approach 1:
The brake wire is designed to be flexible and movable, allowing the brake member to be dynamically positioned along the wheel's rotation path. The wire can be pulled taut to engage the brake or relaxed to release it, providing dynamic control that is both reliable and convenient.
Solution Approach 2:
The brake wire acts as an intermediary between the user's manual input and the brake member. By pulling the wire, the user indirectly actuates the brake mechanism, making operation more intuitive and convenient while maintaining reliable wheel stopping capability.
2Reliability
If a brake mechanism is added to the luggage, then wheel rotation can be controlled, but the device complexity increases
Solution Approach 1:
The brake system is segmented into distinct functional components: the brake member with engagement protrusion, the flexible brake wire, and the wheel with toothed perimeter. This segmentation allows each component to be simple in design while collectively providing reliable braking functionality without excessive overall complexity.
Solution Approach 2:
The brake mechanism is designed to be self-actuating through the flexible wire. When the wire is pulled, it automatically tensions and engages the brake member with the wheel's toothed perimeter without requiring additional actuators, motors, or complex control systems, thus maintaining simplicity while achieving reliable braking.
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
The system provides a more convenient method to brake the luggage wheel, with a buffer device that cushions the brake force and alerts the user through noise when the wheel is braked, preventing damage from overwhelming forces and ensuring easy operation.
Implementation Method 1
a resilient member, having two ends abutting an inner sidewall of the case body and the slide block, respectively
Data Source
AI summary
A brake system for the wheeled luggage case and control device thereof are provided. The control device includes: a case body, a press positioning assembly, a slide block, a fixed pulley, and a brake wire. The press positioning assembly is actuated to slide at the top of the case body, such that the resisting convex block slides from one end of the slope surface to the other end of the slope surface, and the slide block is urged towards the bottom of the case body, such that the inner wire of the brake wire driven by the slide block controls the brake member to brake the wheel of the wheeled luggage case. It is more convenient to use the control device to brake the wheel of the wheeled luggage case.