Quick Release Watch Band with Frangible Clasp
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Solution Overview
Problem
Jewelry bands, particularly watch bands, are prone to catching or snagging on objects, posing a risk of injury to the wearer due to excessive force application.
Innovation Solution
A quick release band assembly featuring a clasp assembly with a rotatable cross-member, a spring-loaded hinge assembly, or a frangible hinge that releases when an excessive load is applied, allowing the band to detach and prevent injury.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the watch band is made secure and durable, then the band strength is improved, but the risk of injury from snagging increases
Solution Approach 1:
The watch band assembly is divided into separable components: a first portion (band) and a second portion (clasp assembly with quick release mechanism). This segmentation allows the band to be securely constructed while enabling rapid detachment through the quick release feature, preventing injury if the band catches on objects.
Solution Approach 2:
The clasp assembly incorporates a dynamic quick release mechanism that transitions from a locked secure state to an unlocked released state when activated. This dynamic feature allows the band to maintain strength during normal use while providing a controlled failure mode that prevents injury through snagging.
2Reliability
If a quick release mechanism is added to prevent injury, then the safety is improved, but the device complexity increases
Solution Approach 1:
The quick release mechanism is designed to be self-actuating through user-friendly features. The release button or lever directly engages the internal mechanism to disengage the band from the clasp assembly, eliminating the need for complex tools or multiple steps. This self-service approach maintains safety while minimizing operational complexity.
Solution Approach 2:
The quick release functionality is extracted as a separate, dedicated mechanism within the clasp assembly rather than being integrated into the entire band structure. This allows the safety feature to be implemented in a localized, manageable way that doesn't unnecessarily complicate the overall device.
3Duration of action of stationary object
If the band is designed to be permanently secure, then the durability is improved, but the ease of operation decreases
Solution Approach 1:
The clasp assembly incorporates a dynamic quick release mechanism that transitions from a locked secure state to an unlocked released state when activated. This dynamic feature allows the band to maintain strength during normal use while providing a controlled failure mode that prevents injury through snagging.
Solution Approach 2:
The quick release mechanism is pre-configured in the clasp assembly, with the release button or lever positioned and spring-loaded to facilitate easy activation. This preliminary preparation ensures that when the user needs to remove the band, the action requires minimal effort, improving ease of operation without compromising durability.
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 quick release mechanism effectively reduces the risk of injury by releasing the band from the wearer's wrist when excessive force is applied, preventing snagging and entanglement with objects.
Implementation Method 1
the hinge assembly is spring-loaded and includes a hinge pin, a first engaging pin engaged with the hinge pin, a first spring urging the first engaging pin outwardly from the hinge pin
Data Source
AI summary
A quick release jewelry band is configured to release a wrist-watch from the wrist of a wearer if the watch band is subject to an excessive load which may injure the wearer.