Wearable Electronic Strap Fastening Structure with Internal Hook
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Solution Overview
Problem
Existing wearable electronic devices face challenges in efficiently and conveniently attaching straps to their housings, often requiring complex mechanisms that increase size and reduce usability.
Innovation Solution
A fastening structure featuring a hook member and button member within a cavity portion of the housing, combined with a strap adapter and magnets, allows for secure and easy attachment of the strap without the need for lugs, enhancing usability and reducing space requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a spring bar-type pin with unidirectional handle is used to fasten the strap to the housing, then the strap can be securely attached, but the device structure becomes more complex and requires additional components
Solution Approach 1:
The patent extracts the fastening function from the traditional spring bar mechanism and relocates it to a cavity portion within the housing. The hook member is positioned inside the cavity, allowing the strap attachment mechanism to be integrated within the housing structure rather than requiring external lugs or protruding components. This reduces overall device complexity while maintaining secure attachment.
Solution Approach 2:
The hook member is nested within the cavity portion of the housing, creating a compact integrated structure. The cavity portion itself is formed within the housing body, effectively nesting the fastening mechanism inside the existing housing structure. This eliminates the need for separate external fastening components and reduces the overall number of parts required.
2Ease of operation
If traditional lugs with holes are formed in the housing to attach the strap, then the strap can be fastened, but the housing design is constrained and manufacturing complexity increases
Solution Approach 1:
The housing is segmented to create a cavity portion that houses the fastening mechanism. Rather than forming holes through the entire housing structure, the cavity is created as a localized internal feature. This segmentation allows the housing to maintain its overall structural integrity while providing a dedicated space for the hook member, simplifying the manufacturing process.
Solution Approach 2:
Instead of creating holes through the housing to attach the strap, the patent inverts the approach by creating an internal cavity and placing the hook member inside. The strap attachment point is moved from the external surface to an internal location, allowing the housing to be manufactured as a solid structure with an internal cavity rather than requiring through-holes or complex external lug formations.
3Reliability
If four lugs are provided in the housing for strap attachment, then the strap can be securely fastened, but the housing requires more space and limits design flexibility
Solution Approach 1:
The patent merges the fastening function into a single integrated cavity portion within the housing, combining what would traditionally require multiple separate lugs into one consolidated structure. The hook member within the cavity provides the attachment function for the strap, eliminating the need for multiple distributed lugs and reducing the overall space required in the housing.
Data Source
AI summary
An electronic device including a fastening structure of a strap of an embodiment is provided. The electronic device of an embodiment includes a housing 410 including a cavity portion 412 formed toward a side direction of the electronic device, a hook member 420-2 arranged within the cavity portion 412 and protruding toward the side direction of the electronic device, a button member 420-1 configured to move the hook member 420-2 toward a front direction of the electronic device by applying force to the hook member 420-2 toward the front direction of the electronic device, and a strap 450 fastened to the hook portion 524. The strap 450 includes a strap body 455, and a strap adapter 451 including an attachment portion 452 and a plurality of protrusion guides 453, and positioned at one side of the strap body 455 and fastened to the hook portion 524.