Helmet Anti-Theft Lock Nested in Handlebar End
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Solution Overview
Problem
Existing helmet anti-theft devices for two-wheel vehicles can be cut using a metal chainsaw and are primarily designed for full-face helmets, making them ineffective for other types of helmets and vulnerable to saw-based attacks.
Innovation Solution
A lock system comprising a bolt and barrel with a striker plate and key, integrated into a handlebar end, where the bolt is positioned in a support with a groove allowing 90° rotation, and the barrel is locked within the handlebar end, using strong, corrosion-resistant materials like aluminum or stainless steel, ensuring the bolt is inaccessible for cutting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing anti-theft devices use exposed locking pins or levers, then the device structure is simple, but the helmet can be cut free with a metal chainsaw
Solution Approach 1:
The locking bolt is nested within the handlebar end structure, with the barrel inserted into the handlebar end and the bolt extending through it. This nesting arrangement hides the critical locking components from external access, making them inaccessible to cutting tools while maintaining a relatively simple overall structure.
Solution Approach 2:
The barrel acts as an intermediary component between the locking bolt and the handlebar end. It provides a protective interface that prevents direct access to the bolt, thereby blocking cutting tools from reaching the vulnerable locking mechanism while adding minimal structural complexity.
2Adaptability or versatility
If anti-theft devices are designed for full-face helmets only, then the locking mechanism can be optimized for that specific helmet type, but the device cannot be used with other helmet types
Solution Approach 1:
The locking device is designed with universal adaptability by providing multiple mounting position options (front, rear, left, right) and configuring the bolt and support to work with various helmet types including bicycle helmets, scooter helmets, and motorcycle helmets. This multi-functional design allows a single device to serve multiple helmet types without requiring separate specialized designs for each helmet category.
3Reliability
If the locking components are exposed and accessible, then the device is easier to manufacture and install, but the helmet can be removed by cutting the locking components
Solution Approach 1:
The locking bolt is nested within the handlebar end structure, with the barrel inserted into the handlebar end and the bolt extending through it. This nesting arrangement hides the critical locking components from external access, making them inaccessible to cutting tools while maintaining a relatively simple overall structure.
Solution Approach 2:
The device incorporates preliminary protective measures by designing the bolt and support structure to prevent cutting attacks before they can occur. The inaccessibility of the bolt to cutting tools is built into the design from the beginning, eliminating the vulnerability to saw-based attacks that plagues conventional exposed locking mechanisms.
Data Source
Figure 1~3
Figure 4~5
AI summary
The invention relates to an anti-theft device (1) for a helmet for a two-wheeled vehicle, comprising a lock with a first part consisting of a bolt (2) and a second part consisting of a cylinder (4) inserted into an end of a handlebar (8). The invention also relates to an anti-theft kit for a helmet for a two-wheeled vehicle and to a helmet for a two-wheeled vehicle which comprises, on the top of the helmet, the first part of the anti-theft device according to the invention.