Mobile Storage Unit Motor Brake to Prevent Rail Deflection Drift
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Solution Overview
Problem
Existing mobile storage systems face issues with unintended movement of units due to rail deflection under load, requiring complex and costly locking mechanisms that are often manually operated, lacking an automatic and component-efficient solution to maintain units in desired positions when the motor is not in use.
Innovation Solution
A motor-powered storage system with an integrated automatic locking mechanism, specifically a motor brake, that engages with the motor output shaft to prevent wheel rotation when the motor is stopped, synchronized with the main control system via a status monitor to ensure efficient operation and minimal component usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If locking mechanisms are added to prevent storage unit drifting, then reliability is improved, but device complexity increases
Solution Approach 1:
The patent extracts the locking function from separate mechanical locking mechanisms and integrates it into the motor itself through a motor brake. The motor brake is directly coupled to the motor output shaft, eliminating the need for separate locking components while maintaining the prevention of unintended movement.
Solution Approach 2:
The motor serves multiple functions: it provides driving force during movement and acts as a locking mechanism through its integrated brake when stationary. This multi-functionality reduces the need for separate dedicated locking components, thereby reducing device complexity while maintaining reliability.
2Ease of manufacture
If manual locking mechanisms are used, then ease of manufacture is improved, but ease of operation deteriorates
Solution Approach 1:
The motor brake automatically engages and disengages based on motor operation status without requiring manual intervention. The control system automatically activates the brake when the motor stops, providing self-service locking functionality that improves ease of operation while maintaining manufacturing simplicity.
3Measurement precision
If multiple status lines are used for motor and brake monitoring, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The patent combines motor status and brake status monitoring into a single shared status line. The control system multiplexes the monitoring functions, allowing one status line to carry information about both motor operation state and brake engagement state, thereby reducing device complexity while maintaining measurement precision through intelligent signal processing.
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 motor brake effectively maintains storage units in desired positions without manual intervention, reducing complexity and cost by automatically engaging and disengaging to prevent drifting, while simplifying the control system with a single status line for monitoring.
Implementation Method 1
a motor brake that is selectively engageable with the motor output shaft to selectively prevent the motor output shaft from rotating
Data Source
AI summary
The present invention is a mobile storage unit including an electric motor operably connected to wheels movably supporting the unit, and a motor brake operably connected to the electric motor. A shaft is rotatably mounted to the unit and supports the wheels on which the unit moves, and is engaged with an electric motor. The electric motor operates to rotate the shaft and the wheels to move the unit in the desired direction. Upon deactivation of the motor, the motor brake, which is also engaged with the shaft, operates to prevent any further rotation of the shaft to maintain the mobile storage unit in a specified location regardless of deflection of the surface on which the storage unit is positioned.