Integrated D-Lock and Cable Security Device
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Solution Overview
Problem
Cyclists face challenges in transporting D-locks and bicycle cables securely and conveniently, as existing solutions either require carrying cumbersome bags, attaching to the bicycle with poorly designed mountings, or wearing uncomfortable locks and cables, which can lead to instability and increased risk of theft.
Innovation Solution
A security device with a built-in clip on the D-lock allows for easy attachment to clothing or accessories, and a retaining device for the cable that can be securely stored within the D-lock's enclosure, enabling both to be carried without significant space increase, using 'U' shaped channels for attachment and a snap fit mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If cyclists carry a lock in a bag, then the lock is protected and secure, but the weight of the bag increases and capacity for other articles decreases
Solution Approach 1:
The patent combines the lock and cable into a single integrated assembly where the cable is stored within the lock body. This merging eliminates the need for separate carrying containers, reducing overall weight while maintaining security. The lock body itself becomes the storage container for the cable, creating a compact unified security device.
Solution Approach 2:
The cable is nested within the lock body structure. The lock housing contains recesses and channels that accommodate the cable in a folded or coiled state, allowing the cable to be stored inside the lock itself rather than requiring external storage. This nesting approach minimizes the space and weight required for transporting both items.
2Ease of operation
If cyclists attach the lock to the bicycle frame, then the lock is easily accessible, but the mounting systems are cumbersome, unsightly, and can cause rattles and damage
Solution Approach 1:
The patent removes the complex mounting system from the bicycle lock design. Instead of providing attachment mechanisms for the bicycle frame, the lock is designed to be carried independently by the cyclist. This extraction of the mounting function eliminates the associated problems of rattles, damage, and aesthetic issues while maintaining accessibility through personal carry.
3Ease of operation
If cyclists hang the lock from the handlebars or frame, then the lock is accessible during riding, but the bicycle becomes unstable and unpredictable
Solution Approach 1:
The patent eliminates the practice of attaching the lock to the bicycle by removing all mounting hardware and attachment points. The lock is designed exclusively for portable carry by the cyclist, separating the lock from the bicycle entirely. This extraction resolves the stability issue by preventing any interference with bicycle handling while maintaining accessibility through personal carry.
4Weight of moving object
If cyclists leave the lock at one or both ends of their journey, then the need to carry a lock is avoided, but two separate locks may be required and the lock is vulnerable to tampering when unattended
Solution Approach 1:
The patent combines a D-lock with a flexible cable lock into a single integrated security device. The cable is stored within the D-lock assembly and can be deployed to provide additional security coverage. This merging allows the cyclist to carry one unified security device that provides both the portability of a cable lock and the strength of a D-lock, eliminating the need to leave locks unattended or purchase multiple separate locks.
5Ease of operation
If cyclists wear a chain lock around the waist, then the lock is easily accessible and comfortable, but standard chain locks are uncomfortable and difficult to wear due to their length and rigidity
Solution Approach 1:
The patent merges a rigid D-lock with a flexible cable into a single wearable assembly. The cable can be worn around the waist like a belt, while the D-lock component is attached to the cable assembly. This combination allows the rigid security element to be supported by the flexible wearable portion, making the overall device comfortable to wear while maintaining security effectiveness.
Solution Approach 2:
The patent uses a flexible cable as the wearable component that can conform to the cyclist's body and be worn comfortably around the waist. The cable's flexibility allows it to adapt to different body shapes and movement, while the attached D-lock provides the rigid security element. This use of flexible material for the wearable portion resolves the comfort and wearability issues associated with rigid chain locks.
Data Source
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AI summary
The invention relates to a security device (1) provided with clip means (10) allowing the security device (1) to be attached to clothing, bags or other accessories without the need for a separate holster or carrier. The invention therefore provides a security device (1) that can be readily transported without the need for a separate holster or carrier.