Accessory Assembly Interlocking Protrusion Rotation
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Solution Overview
Problem
Traditional connecting rings for fabric or leather goods, such as handbags, face issues with decreased combining force due to relative rotation, poor workability, and durability, leading to potential damage to the fabric.
Innovation Solution
An ornament assembly comprising a first body with a protrusion and an insert groove, and a second body with a protrusion that fits into the groove, preventing relative rotation and enhancing coupling strength, with features like inclined inner sidewalls and divided parts for improved design and assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If screw combination or riveting combination is used to combine the first and second bodies, then the connecting ring can be assembled, but the combining force decreases due to relative rotation of the first and second bodies
Solution Approach 1:
The second protrusion is nested within the insert groove of the first protrusion, creating a interlocking structure where one component fits into another. This nesting arrangement prevents relative rotation between the first and second bodies while maintaining assembly capability, directly resolving the contradiction between combinability and rotational stability.
2Ease of manufacture
If riveting combination is used to combine the first and second bodies, then assembly can be completed, but workability is poor requiring press process
Solution Approach 1:
The connecting ring is segmented into a first body and a second body that can be assembled separately and then combined through the insert groove and protrusion interface. This segmentation eliminates the need for press processes required in traditional riveting, improving workability while maintaining assembly completion.
3Ease of manufacture
If traditional connecting ring is used, then assembly can be completed, but the protrusion is shown by user resulting in poor design
Solution Approach 1:
The second protrusion is nested within the insert groove of the first protrusion, creating a interlocking structure where one component fits into another. This nesting arrangement prevents relative rotation between the first and second bodies while maintaining assembly capability, directly resolving the contradiction between combinability and rotational stability.
4Strength
If screw combination or riveting combination is used, then the first and second bodies can be combined, but the fabric between them is damaged by relative rotation
Solution Approach 1:
The second protrusion is nested within the insert groove of the first protrusion, creating a interlocking structure where one component fits into another. This nesting arrangement prevents relative rotation between the first and second bodies while maintaining assembly capability, directly resolving the contradiction between combinability and rotational stability.
Data Source
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AI summary
The present invention relate to an ornament assembly, which is an ornament itself, to form a ring hole for a string or a latch through fabric or leather goods. The ornament assembly includes a first body and a second body. The first body includes a first base defining a first through hole at a center of the first base and a first protrusion protruded from a boundary of the first through hole. The second body includes a second base defining a second through hole at a center of the second base and a second protrusion protruded from a boundary of the second through hole. The first protrusion defines an insert groove at a surface which is opposite to the second protrusion. The second protrusion is configured to be inserted into the insert groove to be combined with the first protrusion.