Sleeve Insertion Mechanism for Coaxial Cable Braid
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Solution Overview
Problem
Conventional terminal fittings struggle to securely insert a cylindrical sleeve into the braid of coaxial cables due to the braid's deformability, which hinders close contact between the outer terminal and the braid, leading to potential electrical connectivity issues.
Innovation Solution
A sleeve inserting apparatus comprising a cable holding part, a braid spreading part, a sleeve receiving cylinder with a tapered end, and a sleeve pushing part, which spreads the braid and guides the sleeve into the braid, ensuring secure insertion by using a braid hitting member to further spread the braid and a braid pressing part to maintain contact with the sleeve.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a cylindrical sleeve is inserted into the braid to ensure close contact between the outer terminal and the braid, then electrical connectivity is improved, but the deformability of the braid makes insertion difficult
Solution Approach 1:
The braid spreading part spreads the braid before the sleeve insertion, preparing the insertion path in advance. This preliminary action reduces the resistance caused by the braid's deformability and enables smooth sleeve insertion, resolving the contradiction between ensuring electrical connectivity and overcoming insertion difficulty
Solution Approach 2:
The sleeve receiving cylinder acts as an intermediary tool that guides the sleeve into the braid. Its tapered end part helps the sleeve penetrate the braid structure, facilitating insertion while maintaining the intended electrical connection between the outer terminal and the braid
2Ease of operation
If the braid is spread to facilitate sleeve insertion, then insertion ease is improved, but the braid structure may be damaged
Solution Approach 1:
The braid spreading part performs controlled spreading of the braid before sleeve insertion, creating a temporary insertion path. This preliminary spreading is sufficient to facilitate sleeve insertion while avoiding excessive force that would damage the braid structure
Solution Approach 2:
The braid spreading part applies spreading force only at the specific location where the sleeve needs to be inserted, rather than spreading the entire braid. This localized spreading minimizes structural damage while providing sufficient clearance for sleeve insertion
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The apparatus securely inserts the sleeve into the braid, ensuring effective electrical connection between the terminal and the braid without damaging the coaxial cable's core wire, enhancing the reliability of coaxial cable connections.
Implementation Method 1
an end part of the sleeve receiving cylinder facing the end part of the coaxial cable being formed tapered... by inserting the tapered sleeve receiving cylinder into the braid spread by the braid spreading part, the braid spread by the braid spreading part can be further spread
Implementation Method 2
a braid hitting member hitting the braid exposed from the end part of the coaxial cable... When the braid hitting member hits the braid, an end part of the braid is spread toward the outer circumferential side
Implementation Method 3
a sleeve pushing part pushing the sleeve situated in the sleeve receiving cylinder to the inside of the braid... the sleeves can be securely inserted into the braid
Data Source
AI summary
A sleeve inserting apparatus, which can securely insert a sleeve into the inside of a braid of a coaxial cable, is provided. The sleeve inserting apparatus 1, includes: a base 22; a cable holding part 23 holding an end part 2a of a coaxial cable 2, the cable holding part 23 being provided on the base 22; a braid spreading part 24 spreading a braid 3 exposed from the end part 2a; a sleeve receiving cylinder 27 receiving a sleeve 4 inside, an end part of the sleeve receiving cylinder 27 facing the end part 2a being formed tapered; a cylinder transferring part 26 making the sleeve receiving cylinder 27 and the end part of 2a the coaxial cable 2 approach each other; and a sleeve pushing part 28 pushing the sleeve 4 situated in the sleeve receiving cylinder 27 to the inside of the braid 3.