Dynamic Friction Fastener Structure for Anti-Slip Quick Release
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Solution Overview
Problem
Existing harness strap connection devices lack both anti-slip and quick-detach functions, complicating manipulation and posing risks during emergency evacuations.
Innovation Solution
An anti-slip and quick-detach fastener structure featuring a fixing ring with a dynamic friction member, where a first friction section and a second fixing section form a dynamic friction state to clamp the strap securely and release it quickly by rotating the first friction section.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a traditional adjustment ring is used to secure the strap, then the strap is prevented from slipping off, but the detachment process becomes complicated and time-consuming
Solution Approach 1:
The patent applies the dynamics principle by transitioning from a static friction-based retention mechanism to a dynamic friction-controlled mechanism. The first friction section can be rotated to dynamically change the friction state between the first friction section and the second fixing section, enabling quick detachment while maintaining secure retention during normal use.
2Ease of operation
If a buckle with protruding portion and groove is used to connect strap ends, then the strap can be quickly attached, but the buckle may detach under large force and cannot adjust strap length
Solution Approach 1:
The patent applies parameter changes by utilizing friction as a variable parameter to control the retention force. The dynamic friction state between the first friction section and the second fixing section can be adjusted through rotation, allowing the system to adapt to different force conditions and maintain reliable retention without being pre-formed with fixed-length constraints.
3Adaptability or versatility
If the strap is inserted through ring holes for adjustment, then the strap length can be modified, but the manipulation becomes complicated and time-consuming
Solution Approach 1:
The patent applies the extraction principle by removing the need for strap insertion through ring holes. Instead, the strap ends are directly constrained by the fixing ring structure, eliminating the complicated insertion and adjustment manipulation while maintaining length adaptability through the dynamic friction mechanism.
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 fastener structure effectively prevents strap slippage while allowing rapid detachment, enhancing user safety and ease of use during emergencies.
Implementation Method 1
the first friction section and the second fixing section form a dynamic friction state to jointly clamp the free end
Implementation Method 2
the first friction section loses the dynamic friction state with the second fixing section and releases the free end when the first friction section is forced to rotate
Data Source
AI summary
The invention provides an anti-slip and quick-detach fastener structure for using with an annular strap which comprises a fixed end, a first inner edge, a free end, and a second inner edge. The anti-slip and quick-detach fastener structure comprises a fixing ring and a dynamic friction member. The fixing ring comprises a first fixing section, a second fixing section opposite to the first fixing section, and an inserting space. The dynamic friction member comprises a first friction section surrounded by the free end to constrain the second inner edge, and an operating section connected with the first friction section. The first friction section and the second fixing section form a dynamic friction state to jointly clamp the free end, and the first friction section loses the dynamic friction state with the second fixing section and releases the free end when the first friction section is forced to rotate.