Fastener Member With Diverging Barbed Locking Members
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Solution Overview
Problem
Conventional fastener members have complex production processes and require improved coupling forces with the subject to be coupled.
Innovation Solution
A fastener member design featuring a base portion with vertically arranged locking members, including a shaft portion with diverging side faces and barbed portions that extend in both the X and Y directions, allowing for increased coupling range and ease of locking, and can be produced using a simple production process with a single slide direction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If barbed portions extend only in the X direction from side faces, then the production process requires multiple slide directions increasing complexity, but the coupling range is limited
Solution Approach 1:
The barbed portions are designed to extend in both the X direction (first direction) and Y direction (second direction) simultaneously, creating a three-dimensional barbed structure from two-dimensional side faces. This dimensional extension allows the barbed portions to engage with subjects coupled in multiple directions, widening the coupling range without requiring multiple slide molds, as the complex shape is achieved through geometric design rather than multiple molding operations
Solution Approach 2:
The side faces of the shaft portion are designed to diverge in the Y direction, creating an asymmetric geometry where the barbed portions naturally extend in both X and Y directions. This asymmetric configuration allows a single slide mold moving in the Y direction to form the complex three-dimensional barbed structure, simplifying the production process while achieving multi-directional coupling capability
2Adaptability or versatility
If multiple slide molds are used to form barbed portions in different directions, then the coupling range is widened, but the production process becomes more complex
Solution Approach 1:
The side faces diverging in the Y direction serve a dual function: they provide the geometric foundation for barbed portions extending in both X and Y directions, and they enable a single slide mold to form the complete three-dimensional barbed structure. This universal design allows one molding component to achieve what would traditionally require multiple specialized molds, simplifying manufacturing while maintaining multi-directional coupling capability
Solution Approach 2:
The side faces are pre-configured with a divergent geometry in the Y direction before the molding process, which automatically guides the barbed portions to extend in both X and Y directions during a single molding operation. This preliminary geometric preparation eliminates the need for subsequent molding operations or complex multi-slide mechanisms, as the final three-dimensional shape is achieved in one step
3Strength
If locking members are arranged sparsely, then the production process is simpler, but the coupling force is reduced
Solution Approach 1:
The locking members are divided into multiple discrete units arranged in a lattice pattern, with each locking member containing multiple barbed portions on its side faces. This segmentation allows the coupling force to be distributed across numerous individual locking members, achieving high overall coupling strength while maintaining a regular, simple arrangement that facilitates straightforward production processes
Data Source
AI summary
A fastener member (10) including: a base portion (11) having a surface (15); and a plurality of locking members (12) vertically provided on the surface, the locking members locking with a subject to be coupled so as to mechanically couple to the subject to be coupled; wherein the locking member includes a shaft portion (20), projecting from the base portion, having a pair of side faces (22A, 22B) that are opposite each other in a first direction (x) and, as viewed from the surface, diverge in a second direction (y) orthogonal to the first direction, and a barbed portion (21) provided on each of the pair of side faces; and, as viewed from the surface, the barbed portion provided on at least one of the side faces of the pair of side faces extends in a direction intersecting the first direction and the second direction.