Quick Detach Shackle With Bias-Actuated Locking Pin
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Solution Overview
Problem
Existing shackles lack a reliable and quick detachment mechanism from tethering devices, making them inefficient for applications where rapid connection and disconnection are necessary.
Innovation Solution
A quick detach shackle design featuring a body, hasp, and locking pin with a mounting bore and bias element, allowing for secure attachment to a surface and easy release through a pull ring mechanism, enabling quick detachment by compressing the bias element to retract the locking pin.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a traditional shackle design is used, then the shackle can be securely attached to a tethering device, but the detachment process is time-consuming and inefficient
Solution Approach 1:
The shackle is divided into separable components: a body portion with a locking pin and a hasp portion with a corresponding bore. The locking pin can be independently actuated to release the hasp from the body, enabling quick detachment without manipulating the entire shackle structure.
Solution Approach 2:
The locking pin is pre-positioned in a locked state that automatically secures the hasp to the body upon assembly. The user only needs to perform a simple releasing action on the pin rather than manually disassembling multiple components, thereby reducing detachment time.
2Productivity
If a quick-release mechanism is added to the shackle, then detachment speed improves, but the device complexity increases
Solution Approach 1:
The locking pin serves dual functions: it acts as both a structural connector between the body and hasp and as the release mechanism. By combining these functions into a single component, the design achieves quick-release capability without adding separate complex mechanisms.
Solution Approach 2:
The locking pin is designed to perform multiple roles: providing structural support, enabling quick release, and maintaining the enclosed area when locked. This multi-functionality reduces the need for additional specialized components, thereby limiting complexity increase.
3Volume of moving object
If the mounting bore is positioned centrally, then the shackle size is minimized, but torque application becomes difficult without over-torquing
Solution Approach 1:
The mounting bore is strategically positioned between the rotation pin bore and locking pin bore, creating an asymmetric layout. This local positioning optimization allows the shackle to maintain a compact overall size while providing adequate leverage arm for controlled torque application during installation.
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 shackle provides a secure attachment and rapid release functionality, reducing torque requirements and ensuring reliable detachment without over-torquing, enhancing usability in applications like helmets and other mounting surfaces.
Implementation Method 1
at least a portion of the bias element can be inserted into the body locking pin bore to securely position the locking pin
Implementation Method 2
compressing the bias element to retract the locking pin
Data Source
AI summary
A shackle is provided that is fixedly mounted to a surface. The shackle can have a body, a hasp, and a locking pin. The body can define at least one mounting bore that is configured for mounting the shackle to the surface. The proximal end of the hasp is configured to rotate relative to the body and the distal end of the hasp is configured to selectively engage the locking pin, such that an enclosed area is defined. A tethering device can be attached to the shackle via cooperative engagement with the selectively enclosed area.