Mobile X-ray Imaging System Brake Mechanism
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Solution Overview
Problem
Existing mobile X-ray imaging systems are difficult to stop manually due to their heavy and large inertia, requiring a significant stopping force that human power cannot provide.
Innovation Solution
An X-ray imaging system with a handle for manual movement and a brake mechanism that includes a lever, brake shoe, and link mechanism, allowing for easy and efficient braking of the system's wheels, along with a steering mechanism for directional control, enabling safe and controlled stopping.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual movement is used for the heavy X-ray imaging system, then the system can be moved and positioned, but the system cannot be stopped urgently due to insufficient stopping force
Solution Approach 1:
A brake shoe is introduced as an intermediary component between the operator and the wheel. The brake shoe contacts the wheel's outer periphery to generate friction-based stopping force, amplifying the operator's manual braking effort to effectively stop the heavy system
Solution Approach 2:
The manual pushing/stopping action is replaced with a mechanical brake system. Instead of relying solely on human muscular force to stop the system, a mechanical brake mechanism with lever, link mechanism, and brake shoe is used to convert small manual inputs into large stopping forces through mechanical advantage
2Ease of operation
If the brake shoe is positioned to contact the wheel, then effective braking force is generated, but the brake shoe may interfere with wheel rotation during normal movement
Solution Approach 1:
The brake shoe is designed to be dynamically positioned - it can be brought into contact with the wheel when braking is required and retracted when not needed. The link mechanism allows the brake shoe to move between a retracted position (during normal movement) and an engaged position (during braking), adapting its state to the operational requirements
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
Enables easy and safe manual stopping of the X-ray imaging system, even when it is heavy and has large inertia, by providing a mechanical braking system and steering capabilities, improving operational safety and control.
Implementation Method 1
the brake shoe is brought into abutment against an outer periphery of the wheel
Data Source
AI summary
An X-ray imaging system includes an X-ray irradiator, an X-ray receiver, a support mechanism configured to support the X-ray irradiator and X-ray receiver in opposing positions, and a flat carrier configured to support the support mechanism and including at least one wheel for movement. The X-ray imaging system also includes a handle for manual movement attached to the flat carrier car and brake means juxtaposed to the handle.