Wheel Clamp Anti-Theft Locking Sleeve Mechanism
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Solution Overview
Problem
Existing wheel clamps, particularly those with a single clamping element or locking bar, face challenges in secure fitment and unauthorized removal prevention, especially on vehicles with alloy wheels or those in long-term storage.
Innovation Solution
A wheel clamp design featuring a locking bar with cooperating screw threads, a locking sleeve, and a cover plate, where the locking sleeve can be securely fastened to the locking bar using first and second screw threads of different pitches, ensuring the locking sleeve can only be rotated a limited amount to prevent unauthorized removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a locking bar with screw threads is used to secure the wheel clamp, then the security against unauthorized removal is improved, but the complexity of the locking mechanism increases
Solution Approach 1:
The locking mechanism is divided into separate functional components: a locking bar with external screw threads, a locking sleeve with internal screw threads, and a locking means. This segmentation allows each component to perform its specific function while maintaining overall security, and simplifies manufacturing and assembly of individual parts.
Solution Approach 2:
The locking sleeve is designed to receive and enclose the locking means within its interior space. This nesting arrangement protects the locking means while maintaining a compact overall structure, and allows the locking mechanism to secure itself within the sleeve without requiring additional external components.
2Reliability
If a locking sleeve with flange is used to retain the cover plate, then the cover plate security is improved, but the device complexity increases
Solution Approach 1:
The locking sleeve combines multiple functions into a single component: it provides threading for securing the locking bar, contains the locking means within its interior, and features a flange for retaining the cover plate. This merging of functions reduces the total number of separate parts needed while maintaining security and structural integrity.
Solution Approach 2:
The locking sleeve serves multiple purposes: it acts as a threaded fastener for the locking bar, a protective housing for the locking means, and a mounting structure for the cover plate via its flange. This multi-functionality eliminates the need for separate components for each function, simplifying the overall device while improving reliability.
3Reliability
If the pitch of the first screw threads is greater than the pitch of the second screw threads, then the locking sleeve rotation is limited preventing unauthorized removal, but the manufacturing precision requirements increase
Solution Approach 1:
The invention uses different pitch parameters for the two sets of screw threads to create asymmetric threading. The first screw threads (locking bar to locking sleeve) have a greater pitch, while the second screw threads (locking means to locking sleeve) have a smaller pitch. This parameter differentiation allows the locking sleeve to be securely fastened in one direction while preventing rotation in the opposite direction, providing anti-theft functionality through controlled rotational limitation.
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 design provides a simple and secure method for fitting the wheel clamp, making it difficult to remove without authorization, as the locking sleeve's limited rotation prevents separation from the locking bar, thus effectively protecting the vehicle from unauthorized wheel removal.
Implementation Method 1
the locking bar and locking sleeve having cooperating first screw threads, the locking sleeve carrying a locking screw which can rotate relative to the locking sleeve and can be secured to the locking bar by way of cooperating second screw threads
Data Source
Figure 1
AI summary
This invention relates to a wheel clamp and methods of use. The wheel clamp (10) has a locking bar (12), an arm (14) and a cover plate (34). The locking bar (12) is fixed against substantial rotation relative to the arm (14), and a locking member (26) is adapted for connection to the locking bar (12) by way of cooperating first screw threads (22). The locking member (26) carries a locking element (36) which can rotate relative to the locking member (26) and which can be connected to the locking bar (12) by way of cooperating second screw threads (24). The pitch of the first screw threads (22) is greater than the pitch of the second screw threads (24), so that attempts at unauthorised removal by way of the forced rotation of the locking member will cause the respective threads to lock.