Bicycle Locking Unit Prevents Rear Wheel Rotation
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Solution Overview
Problem
Existing lock devices for bicycles are inadequate in preventing theft, as they do not effectively inhibit the rear wheel from rotating, allowing the bicycle to be easily moved or stolen.
Innovation Solution
A locking unit is movably coupled to the bicycle frame and positioned adjacent to the rear wheel, which can be extended through the wheel to lock it in place, using a lock tumbler, worm gear, and arm mechanism to prevent rotation, while allowing the wheel to freely rotate when unlocked.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a traditional lock device is used on a bicycle, then the structure is simple, but the lock is ineffective at preventing the rear wheel from rotating
Solution Approach 1:
The locking unit is designed to be movable rather than fixed, allowing it to dynamically extend through the rear wheel to lock it in place or retract to allow free rotation. This dynamic positioning capability enables the simple structure to achieve reliable theft prevention by actively engaging with the wheel when needed.
Solution Approach 2:
The locking unit changes its positional parameter by moving between retracted and extended states. When extended, it passes through the rear wheel to prevent rotation; when retracted, it allows free movement. This parameter change enables the same component to provide both security and mobility functions.
2Reliability
If the locking unit extends through the rear wheel to prevent rotation, then theft prevention is improved, but the ease of operation decreases due to manual intervention required
Solution Approach 1:
The locking mechanism is designed to be self-actuating through the key-operated tumbler system. When the key is inserted and turned, it automatically triggers the locking unit to extend through the rear wheel without requiring manual manipulation of the locking arm itself. The system serves itself by converting the simple key rotation into the complex locking action.
3Reliability
If the locking unit is positioned to extend through the rear wheel, then the bicycle security is enhanced, but the device complexity increases due to additional components
Solution Approach 1:
The patent merges multiple functions into a single integrated locking unit that combines the locking arm, the extension mechanism, and the wheel engagement feature. Rather than having separate components for each function, they are combined into one unit that moves as a single assembly, reducing overall system complexity while maintaining security effectiveness.
Solution Approach 2:
The locking unit serves multiple functions: it acts as a barrier to wheel rotation, provides a mounting point for the key-operated tumbler, and enables both locked and unlocked states. This multi-functionality reduces the need for additional specialized components, thereby managing device complexity while enhancing bicycle security.
Data Source
AI summary
A bicycle lock system for inhibiting a bicycle from being stolen includes a bicycle that has a frame and a rear wheel. A locking unit is movably coupled to the frame and the locking unit is positioned adjacent to the rear wheel. The locking unit is positionable in a locked position having the locking unit extending through the rear wheel. In this way the rear wheel is inhibited from rotating thereby inhibiting the bicycle from being stolen. The locking unit is positionable in an unlocked position having the locking unit being displaced from the rear wheel thereby facilitating the rear wheel to freely rotate.