Lock Device for Fastening Elements Using Rolling Element Mechanism
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Solution Overview
Problem
Existing fastening elements attached to surfaces, such as screws or bolts, lack effective protection against unauthorized access while maintaining flexibility for authorized access and maintenance, and often require specialized tools for removal or tampering.
Innovation Solution
A lock device comprising a surface engaging member with a hollow shaft and a covering member that uses rolling elements and a rotatable disc to securely lock and unlock, allowing partial removal for authorized access without disassembling the entire device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If welding is used to protect the fastening element, then protection from removal is improved, but flexibility for removal and reinstallation deteriorates
Solution Approach 1:
The lock device is divided into separate components: a surface engaging member that attaches to the fastening element and a covering member that protects the access opening. This segmentation allows the protective function to be separated from the fastening function, enabling removal without damaging the fastening element itself.
Solution Approach 2:
The lock device acts as an intermediary protective layer between the unauthorized users and the fastening element. It provides the protective function without directly modifying or attaching to the fastening element, thus preserving the fastening element for future legitimate use.
2Reliability
If blocking elements are added to protect the fastening element, then protection is improved, but ease of removal deteriorates due to specialized tools required
Solution Approach 1:
The covering member is designed to be removable by the authorized user without requiring specialized tools or services. The simple snap-fit connection allows the user to easily remove the covering member and access the fastening element when needed, while still providing effective protection against unauthorized access.
3Reliability
If blocking elements are used to protect the fastening element, then protection is improved, but adaptability to different objects deteriorates
Solution Approach 1:
The surface engaging member is designed with a universal interface that can attach to various types of fastening elements (screws, bolts, nuts) regardless of their specific dimensions or head types. This allows the same lock device design to be adapted to protect different fastening elements and even other objects with suitable fastening mechanisms.
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
Provides secure protection against unauthorized access while enabling easy access for maintenance and inspection, with the ability to adapt to various fastening elements and objects, and allowing quick substitution of damaged parts.
Implementation Method 1
the inner wall comprising at least one first channel for receiving at least one rolling element, the at least one first channel radially extending from the first space to the second space; the first space being arranged to receive a rotatable disc comprising at least one groove for receiving the at least one rolling element
Data Source
Figure 1a~1b
Figure 2a~2b
Figure 3~4
AI summary
A lock device (1) for securing a fastening element attached to a surface comprising: a surface engaging member (10) comprising a hollow shaft (12) for surrounding the fastening element, the hollow shaft (12) defining a longitudinal axis (X); a covering member (20) for releasably interlocking onto the surface engaging member (10), the covering member (20) comprising an outer wall (21) surrounding an inner wall (23), the inner wall (23) comprising at least one first channel (25) for receiving at least one rolling element (30), and a rotatable disc (40) comprising at least one groove (42) for receiving the at least one rolling element (30); and the covering member (20) further comprising an opening (28) for fitting a locking cylinder (60), the locking cylinder (60) being operatively connectable to the rotatable disc (40).