Rotating D-Ring Buckle Structure for Safer Harness Load Distribution
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Solution Overview
Problem
Existing safety harnesses suffer from increased manufacturing steps and reduced strap support due to sewn D-rings, which also transmit shock forces to the chest and spine during falls, complicating self-rescue.
Innovation Solution
A buckle design featuring a pivotally connected ring body that rotates around a rod body, allowing the buckle to distribute external forces evenly and maintain user stability, integrating a D-ring without sewing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If D-rings are sewn to the safety harness, then the harness can be assembled, but the manufacturing steps increase and the strap support ability weakens
Solution Approach 1:
The D-ring is integrated into the buckle structure, merging two separate components (D-ring and buckle) into one unified element. This eliminates the need for separate sewing operations to attach D-rings to the harness, reducing manufacturing steps while maintaining structural integrity and support capability.
2Device complexity
If D-rings are sewn to the safety harness, then the harness structure is complete, but the shock force transmission to chest and spine increases
Solution Approach 1:
The ring body is pivotally connected to the buckle body, allowing it to rotate dynamically in response to external forces. During a fall, this rotation enables the structure to absorb and distribute shock forces more effectively, reducing the transmission of harmful forces to the user's chest and spine while maintaining structural completeness.
3Ease of manufacture
If D-rings are fastened by sewing, then the harness is assembled, but self-rescue becomes difficult
Solution Approach 1:
By integrating the D-ring functionality into the buckle assembly, the structure becomes more unified and easier to manipulate during self-rescue operations. The rotational capability of the ring body further aids in ease of operation, allowing users to more easily adjust or release the harness during emergency situations.
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
Enhances safety and comfort by stabilizing the user during aerial movements, reducing strain on the chest and spine, and facilitating easier self-rescue.
Implementation Method 1
the ring body is pivotally connected to the first body and is rotatable around a rod body... the ring body could rotate around the rod body in response to external forces from different directions
Data Source
AI summary
A buckle includes a first buckle part, a second buckle part, a connecting section, and a receiving section. The first buckle part has a first body and a ring body, wherein the ring body is pivotally connected to the first body and is rotatable around a rod body. The second buckle part is for releasably connecting to the first buckle part and has a second body. The connecting section extends along an insertion direction. The receiving section is for accommodating the connecting section. The receiving section is disposed on either the first body or the second body, and the connecting section is disposed on the other of the second body and the first body. An angle between the rod body of the first buckle part and the insertion direction is less than 90 degrees.