Wearable Fastening Adjustment Unit With Locking Channels
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Solution Overview
Problem
Existing fastening devices for wearable articles with two shoulder straps often lack adjustable positioning and tightness, leading to unwanted displacement and reduced wearing comfort, especially during active movements.
Innovation Solution
A fastening device featuring an adjustment unit with a main body having first and second locking channels that can switch between locking and open configurations, allowing for adjustable positioning and tightness, along with a hook element for engaging with a fastening cord to enhance wearing comfort.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the fastening device is fixedly connected to the shoulder straps, then the structure is simple, but the positioning cannot be adjusted leading to unwanted displacement
Solution Approach 1:
The fastening device incorporates an adjustment unit with locking channels that can switch between locked and adjustable states. The locking channels engage with the fastening cord at different positions, allowing the device to dynamically adapt its positioning along the shoulder straps while maintaining structural integrity through the biasing mechanism that defaults to a locked state.
Solution Approach 2:
The adjustment unit is divided into separate functional components: a main body with multiple locking channels, a biasing mechanism, and a fastening cord system. This segmentation allows each component to perform its specific function independently while contributing to the overall adjustability without requiring complete structural redesign.
2Adaptability or versatility
If the fastening device allows adjustment along a certain distance, then positioning flexibility is improved, but the straps cannot be fixed in a certain position leading to continuous movement
Solution Approach 1:
The locking channels are designed to engage with the fastening cord at discrete positions along its length, providing both adjustment flexibility and position stability. The biasing mechanism ensures that once a locking channel engages with the cord, it maintains a stable locked state, preventing continuous movement while still allowing repositioning when needed.
3Adaptability or versatility
If the fastening device comprises loose sections with large movement range, then adjustment range is increased, but wearing comfort is reduced
Solution Approach 1:
The device provides a large adjustment range through multiple locking channels positioned at different locations along the fastening cord, allowing the user to select the optimal position for comfort. Once positioned, the locking mechanism eliminates loose movement, maintaining comfort during wear while preserving the broad adjustment capability.
4Adaptability or versatility
If the fastening device is adjusted during activities such as running, then tightness can be modified, but the adjustment process is cumbersome
Solution Approach 1:
The biasing mechanism automatically maintains tension on the fastening cord, and the locking channels are designed to engage and disengage easily through simple user input. This self-service design allows quick adjustment during activities like running without requiring complex manipulation, as the system naturally maintains its function while allowing easy repositioning.
Data Source
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AI summary
Disclosed herein is an adjustment unit (1) with a main body and an adjustment unit hook element (3) protruding from the main body which can be used in an adjustment device (1), as well as a wearable article with such a fastening device (100).