Webbing Adjusting Buckle With One-Way Roller And Elastic Limit
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Solution Overview
Problem
Existing webbing buckles face complexity in length adjustment and safety risks due to reverse rotation of cross bars, leading to webbing slack or deviation.
Innovation Solution
A webbing adjusting buckle featuring a shell, a roller that rotates and moves within the shell, and a limit locking member with a limit column and elastic member, forming a one-way rotation limit structure to prevent reverse rotation and ensure self-locking, thereby allowing safe and reliable webbing length adjustment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single cross bar structure is used for webbing adjustment, then the device complexity is reduced, but the safety reliability deteriorates due to webbing slack risk
Solution Approach 1:
The cross bar is designed to rotate dynamically between limiting positions rather than being fixed. The rotation capability allows the cross bar to adapt to different webbing lengths while the limiting mechanism prevents dangerous reverse rotation, achieving both simplicity and safety.
Solution Approach 2:
The limiting mechanism (limit column and elastic member) is pre-configured to prevent reverse rotation before it can cause webbing slack. By establishing the rotation limit in advance, the system proactively eliminates the safety hazard rather than reacting to it.
2Ease of operation
If rotatable cross bars are used to adjust webbing length, then the ease of operation is improved, but the safety reliability deteriorates due to reverse rotation risk
Solution Approach 1:
The cross bar rotates dynamically in the forward direction for adjustment while being mechanically limited in the reverse direction. This asymmetric movement capability enables easy operation for length adjustment while preventing dangerous reverse rotation through the limit column and elastic member mechanism.
Solution Approach 2:
The rotation mechanism exhibits asymmetric behavior: free rotation in the forward direction for adjustment, but blocked rotation in the reverse direction due to the limit column contacting the roller's outer wall. This asymmetry enables both ease of operation and safety control.
3Reliability
If multiple cross bars are used for webbing adjustment, then the reliability is improved by preventing webbing slack, but the device complexity increases
Solution Approach 1:
Instead of using multiple static cross bars, the invention employs a single dynamic cross bar that rotates to achieve adjustment. The rotation limiting mechanism provides the necessary safety constraint, eliminating the need for multiple cross bars and reducing structural complexity while maintaining reliability.
4Reliability
If a rotation limit structure is added to prevent reverse rotation, then the safety reliability is improved, but the device complexity increases
Solution Approach 1:
The rotation limiting function is segmented into distinct components: the limit column, the elastic member, and the notches on the roller. This segmentation allows each component to perform its specific function independently, making the mechanism simpler and more reliable than a monolithic locking structure.
Solution Approach 2:
The elastic member automatically provides the limiting force when the cross bar attempts reverse rotation, without requiring external control or additional actuation. The mechanism is self-regulating, where the deformation and recovery of the elastic member inherently prevents reverse rotation.
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 solution enables secure one-way rotation of the roller, preventing reverse rotation and webbing slack, enhancing safety and reliability by maintaining the webbing in a tightly pressed state and allowing for easy length adjustment.
Implementation Method 1
the elastic member is used to provide the limit column with an elastic force towards the roller
Data Source
AI summary
A webbing adjusting buckle is provided. The webbing adjusting buckle includes a shell, a roller, and at least one limit locking member. The roller is arranged in the shell and is capable of rotating around an axis of the roller, as well as moving back and forth relative to the shell. The at least one limit locking member is movably assembled in the shell, and the limit locking member includes a limit column and an elastic member. The elastic member is arranged in a length direction of the limit column. A rotation limit structure is formed between the outer wall of the roller and the limit column, to allow the roller to rotate in one direction and prevent the roller from rotating reversely. The elastic member is used to provide the limit column with an elastic force towards the roller.