Interlocking Strap Connector for One-Handed Hat Adjustment
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing adjustable strap connectors for articles of clothing, such as hats and belts, require two hands for engagement and do not effectively balance tension loads, limiting ease of use and size adjustment.
Innovation Solution
An adjustable connector strap with interlocking bodies featuring opposing teeth and notches that allow for one-handed engagement and balanced load distribution, where the number of teeth engaged with notches adjusts the strap length, facilitating quick and easy size adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional strap connectors are used, then the strap can be engaged, but two hands are required for operation reducing ease of use
Solution Approach 1:
The connector is designed to be self-aligning through the interlocking teeth and notches geometry. The tapered surfaces automatically guide the second body into proper alignment with the first body during engagement, eliminating the need for manual alignment by the user. This self-service mechanism allows one-handed operation while maintaining a relatively simple overall structure.
Solution Approach 2:
The teeth and notches are designed with asymmetric tapered surfaces where the engagement direction is facilitated by the geometry. The tapered surfaces are angled to guide engagement in one direction while preventing easy disengagement, creating an asymmetric interaction that simplifies the engagement operation to a single pushing motion.
2Reliability
If traditional strap connectors are used, then the strap can be adjusted, but tension load is not effectively balanced reducing strap durability
Solution Approach 1:
The connector is segmented into multiple teeth and notches distributed along the strap width. This segmentation allows the tension load to be distributed across multiple engagement points rather than concentrated at a single point. Each tooth-notch pair carries a portion of the total load, significantly increasing the overall durability and reliability of the connector.
Solution Approach 2:
The teeth and notches are positioned at specific locations along the strap edges with optimized geometry. Each local engagement point is designed with specific tooth profiles and notch dimensions to evenly distribute stress. The local quality of each engagement point contributes to the overall load-balancing capability of the connector structure.
3Manufacturing precision
If the number of teeth engaged with notches is increased, then size adjustment precision is improved, but the engagement complexity increases
Solution Approach 1:
The connector uses multiple discrete teeth and notches spaced at regular intervals along the strap. This segmentation provides predetermined adjustment positions that enable precise size control. By selecting which teeth engage with which notches, the user can achieve fine-grained adjustment of the strap length or hat size without requiring complex adjustment mechanisms.
Solution Approach 2:
The connector allows dynamic reconfiguration by enabling the user to selectively engage different numbers and combinations of teeth with notches. This dynamic adaptability provides precise size adjustment capability while maintaining a simple static structure when engaged. The system transitions from a simple engaged state to a precisely adjustable state during use.
Data Source
AI summary
An adjustable connector strap may include two interlocking bodies, wherein one body includes a plurality of teeth located along opposing edges, and the other body includes a plurality of notches located along opposing edges. The user may select the number of teeth that are mated with the notches to adjust the size of the strap. The use of interlocking teeth and notches along the opposed edges of the strap bodies may enhances the ability of the strap to maintain its interlocking strength during tension loads. The teeth and notch engagement may also allow a user to quickly engage or disengage the strap bodies, thereby enhancing the ease-of-use of the strap.