Detachable Strap Bar Assembly for Stable, Repairable Connections
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Solution Overview
Problem
Conventional strap bar connections in accessories are cumbersome and prone to damage, leading to economic loss and inconvenience due to the need for replacing entire accessories when the strap bar is damaged.
Innovation Solution
A detachable strap bar device with a through-hole and support groove configuration, allowing easy attachment and detachment, and a fixing mechanism to secure the strap bar without rotation, enabling replacement of the strap bar independently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the strap bar is formed integrally with the entire accessory, then the structural strength is improved, but the ease of repair deteriorates
Solution Approach 1:
The strap bar is divided into a first strap bar and a second strap bar that can be detached from each other. The first strap bar is integrated with the accessory body to maintain structural strength, while the second strap bar can be separately replaced if damaged, resolving the contradiction between structural integrity and ease of repair.
2Ease of repair
If the strap bar is made detachable, then the ease of repair is improved, but the reliability deteriorates
Solution Approach 1:
A groove is pre-formed on the accessory body to receive and securely hold the first strap bar. This preliminary structural preparation ensures that when the strap bar is detached for replacement, it can be reliably reattached to the correct position, maintaining reliability while enabling ease of repair.
3Strength
If the strap connection requires sewing, then the strength is improved, but the ease of operation deteriorates
Solution Approach 1:
The sewing operation is extracted from the strap connection process. Instead of sewing the strap to the accessory body, the strap is wrapped around the strap bar which is already positioned in the groove, eliminating the need for sewing while maintaining connection strength through the mechanical wrap-around configuration.
4Productivity
If the strap bar is made detachable, then the productivity is improved, but the device complexity deteriorates
Solution Approach 1:
The groove for receiving the first strap bar is integrated into the accessory body as a single unified structure, combining the support function and positioning function into one element. This merging reduces the number of separate components needed, thereby reducing device complexity while maintaining the productivity benefits of the detachable strap bar design.
Data Source
AI summary
A strap bar device includes: a strap accessory which includes two support parts facing each other to be spaced apart from each other, and a through-hole and a support groove formed in the two support parts to face each other; and a strap bar which is inserted through the through-hole and is supported in the through-hole and the support groove. A strap is connected to the strap bar.