Wire Binding Mechanism With Cylindrical Member For Terminal Support

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Solution Overview

Problem

The challenge is to reliably bind a wire around a terminal without causing breakage of the winding target member or the terminal itself, especially when using a wire with a large diameter, which exerts a significant force that can lead to tilting and breakage.

Innovation Solution

A winding device with a chuck to grip the winding target member, a nozzle for feeding the wire, a binding member to lock the wire, a winding mechanism for rotating the chuck to wind the wire, a wire cutting mechanism, and a wire binding mechanism using a cylindrical member with a protrusion to securely bind the wire around the terminal, preventing tilting and breakage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a wire with a large diameter is used to ensure sufficient binding strength, then the binding reliability is improved, but the force exerted on the terminal increases causing tilting and breakage

Engineering Contradiction:
Improvebinding reliabilityVSAvoidforce on terminal
Core Design Contradiction:
ReliabilityVSForce

Solution Approach 1:

The patent introduces a terminal support as an intermediary component between the terminal and the winding target member. This support provides additional structural reinforcement to the terminal during the wire binding process, distributing and bearing the large force exerted by the wire without causing the terminal to tilt or break. The support acts as a mediator that enables the use of thick-wired materials while protecting the terminal from excessive stress.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If the wire is tightly bound around the terminal to prevent pulling out, then the binding security is improved, but the risk of terminal breakage increases due to excessive force

Engineering Contradiction:
Improvebinding securityVSAvoidterminal strength
Core Design Contradiction:
ReliabilityVSStrength

Solution Approach 1:

The terminal support serves as a mediator that enables tight wire binding while protecting the terminal. It provides the necessary structural backing to allow the wire to be bound securely around the terminal without transferring excessive force directly to the terminal, thus preventing breakage while maintaining binding security.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The terminal support is positioned beforehand to provide cushioning and protection to the terminal before the wire binding process begins. This pre-positioned support structure anticipates the force that will be applied during binding and is already in place to absorb and distribute that force, preventing terminal damage before it occurs.

Inventive Principle:
Principle #11Beforehand cushioning (Prior cushioning)

Data Source

PatentEP2884507B1Winding device and method for binding wire material to terminal
Publication Date: 2018.12.19 NITTOKU ENG CO LTD
  • EP2884507B1 patent drawingFigure 1A
  • EP2884507B1 patent drawingFigure 1B~1C
  • EP2884507B1 patent drawingFigure 2

AI summary

A winding device includes a wire cutting mechanism for cutting the wire wound around the winding target member in the vicinity of the terminal, and a wire binding mechanism for winding, around the terminal, the end portion of the wire wound around the winding target member and cut by the wire cutting mechanism. The wire binding mechanism includes a cylindrical member through which the terminal is insertable, and a rotating mechanism for rotating the cylindrical member about the terminal. A protrusion is formed at a distal end of the cylindrical member so as to protrude in an axial direction of the cylindrical member.