Chain-Blocking Bicycle Lock With Adjustable Cable
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Solution Overview
Problem
Conventional bicycle locks that lock on actuating parts or external structures face issues such as damage to wheels, difficulty in use, especially for the elderly or children, and inefficiency in securing the bicycle to fixed structures.
Innovation Solution
A bicycle lock design that secures to the bicycle's chain, using a lock casing with a lock core assembly, lock bar, and lock cable, allowing easy attachment and detachment without a removable lock body, and featuring a lock bar that blocks the chain to prevent theft.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a wheel lock is used to lock on actuating parts of the bicycle, then the bicycle is prevented from moving normally, but the wheel lock occupies too much space and weighs too much, causing damage to wheel structure
Solution Approach 1:
The invention extracts the locking function from the wheel itself and relocates it to the chain. The lock body is designed to clamp onto the chain rather than the wheel, separating the security function from the wheel structure and eliminating damage to rims and spokes while maintaining theft prevention capability
2Reliability
If a bicycle lock connects the bicycle to external fixed structure, then anti-theft effect is increased, but the locking process is difficult and consumes a lot of time and stamina
Solution Approach 1:
The lock body is pre-equipped with a cable that can be extended to the required length before use. This preliminary preparation eliminates the need for users to wrap and adjust the cable during the locking process, making the operation simple and quick while maintaining secure connection to external structures
Solution Approach 2:
The locking system is divided into two independent components: the lock body that attaches to the bicycle and the cable that connects to external structures. This segmentation allows the cable to be independently adjusted and positioned, simplifying the locking process while maintaining security
3Reliability
If the cable part is not long enough to be wrapped properly, then the user has to remove the whole bicycle lock and adjust the distance, consuming a lot of time
Solution Approach 1:
The cable is designed with dynamic length adjustment capability through an extendable structure. The cable can be extended or retracted as needed, allowing proper wrapping around the bicycle and external structure without requiring removal and re-adjustment of the entire lock assembly, thus saving time while ensuring proper security coverage
Data Source
AI summary
A bicycle lock has a lock casing, a lock core assembly, a lock bar, and a lock cable. The lock casing has a front end surface, a back end surface, a peripheral surface, an installation slot, a fixed pin, a lock core recess, and a cable slot. The installation slot is recessed from the peripheral surface. The fixed pin is secured in the installation slot. The lock core recess is recessed from the front end surface. The lock core assembly is movably mounted in the lock core recess. The lock bar is connected to the lock core assembly and is capable of moving into the installation slot. The lock cable is detachably mounted in the cable slot of the lock casing. The bicycle lock can be fixed on a chain of a bicycle to interfere with operation of the chain, thereby preventing theft