Optical Fiber Unit SZ Binding Adhesion Stability
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Solution Overview
Problem
The binding state of optical fiber units with binding materials wound in an SZ shape tends to be unstable due to unexpected peeling off of adhesive parts, leading to potential adhesion failures and workability issues during intermediate post-branching.
Innovation Solution
The optical fiber unit is designed with binding materials wound in an SZ shape, where the reversed portions are adhered to form adhesive parts with a specific length-to-pitch ratio (0.15 ≤ L/(P/2) ≤ 0.8) and include linear portions that overlap, ensuring a secure adhesive area and strength, preventing peeling and improving workability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If binding materials are wound in an SZ shape and adhered at reversed portions, then workability of intermediate post-branching is improved, but the binding state becomes unstable due to unexpected peeling off
Solution Approach 1:
The invention changes the geometric parameters of the adhesive parts by controlling the ratio L/(P/2) between the length of adhesive parts (L) and half the binding pitch (P/2). By setting this ratio within the specific range of 0.1 to 0.8, the invention optimizes both the stability of the binding state and the workability for intermediate post-branching operations. This parameter optimization prevents unexpected peeling while maintaining the ability to peel when needed for branching operations.
2Reliability
If adhesive parts are made larger to prevent peeling, then binding stability is improved, but manufacturing complexity increases due to tighter tolerance requirements
Solution Approach 1:
The invention establishes a specific range for the ratio L/(P/2) between 0.1 and 0.8, which balances adhesive part size with manufacturing feasibility. This ratio constraint ensures that adhesive parts are sufficiently large to prevent peeling while remaining within practical manufacturing tolerances. The ratio-based specification provides a scalable design criterion that maintains reliability across different binding pitch values without imposing excessively tight absolute tolerance requirements.
Data Source
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AI summary
The present invention provides an optical fiber unit including a plurality of optical fibers, and at least two binding materials that bind the plurality of optical fibers, the two binding materials are wound around the plurality of optical fibers in an SZ shape, and are adhered to each other at respective reversed portions to form an adhesive part, the adhesive part extends along a longitudinal direction in which the optical fiber unit extends, and when a length of the adhesive part in the longitudinal direction is L, and a binding pitch of the binding material in the longitudinal direction is P, 0.15 ≤ L/(P/2) ≤ 0.8 is satisfied.