Pushing-in Fiber Optic Cable Driver for Elastomeric Sealing
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Solution Overview
Problem
Existing methods for inserting fiber optic cables into closures with elastomeric sealing elements often damage the elastomer and compromise its sealing properties when forcing the cable through the cable entry port.
Innovation Solution
A pushing-in device with a cylindrically shaped middle section and conical end sections, allowing the cable to be inserted and fed through the sealing element with minimal exposure to the elastomeric material, and capable of acting as a plug when not in use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a cable is forced through a cable entry port of an elastomeric sealing element, then the cable can be inserted into the closure, but the elastomer is damaged and its sealing properties are compromised
Solution Approach 1:
The pushing-in device serves as an intermediary tool between the cable and the sealing element. It has a tip designed to penetrate the elastomer with minimal damage, while its body protects the cable and provides controlled force application. The device mediates the interaction between cable and sealing element, enabling insertion without direct forcing of the cable against the elastomer.
Solution Approach 2:
The pushing-in device changes the parameters of force application by distributing the penetrating force through its structured design. The tip concentrates force for penetration, while the body distributes force to prevent elastomer damage. This parameter change in force distribution allows cable insertion while preserving sealing properties.
2Productivity
If a cable is pushed through the sealing element, then the cable transitions into the closure, but the elastomeric material is damaged
Solution Approach 1:
The pushing-in device acts as a mediator that enables efficient cable installation while protecting the elastomer. Its specialized geometry allows it to penetrate and push through the sealing element without causing damage, thereby facilitating productive cable installation without the harmful effect of elastomer degradation.
Solution Approach 2:
The pushing-in device is segmented into functional zones: a tip for penetration, a body for force application and cable protection, and an opening for cable insertion. This segmentation allows each part to perform its specific function efficiently, enabling productive installation while minimizing elastomer damage.
3Reliability
If the pushing-in device penetrates the sealing element, then the cable can be fed through with minimal exposure to elastomer, but the device structure becomes more complex
Solution Approach 1:
The pushing-in device is designed as a universal tool that performs multiple functions: penetrating the sealing element, protecting the cable, applying controlled force, and enabling minimal elastomer exposure. This multi-functionality is achieved through its integrated structure with a tip, body, and opening, making the device versatile while maintaining relatively simple geometry.
Data Source
AI summary
The present invention discloses a pushing-in device and a method for driving through a cable entry port of an elastomeric sealing element of a fiber optic closure. The pushing-in device comprises a first end having an opening adapted to receive a cable, and a second end having a tip. The tip is capable of penetrating and passing through the cable entry port of the sealing element. The first end is capable of penetrating the sealing element at the cable entry port when the pushing-in device is driven through the cable entry port. In this manner, a cable inserted in the opening of the pushing-in device may be inserted and fed through the sealing element into the fiber optic closure. Also, the pushing-in device may be used as a plug in a cable entry port.