Coupler Collar Assembly for Removing Recessed Bushing Pins

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Solution Overview

Problem

Bushing pins without a transverse through hole pose a challenge for secure gripping during removal from bushing assemblies, making existing removal systems ineffective.

Innovation Solution

A coupler assembly comprising a coupler collar and coupler pins with passageways that engage the bushing pin recesses to inhibit movement, allowing for the application of removal force through an actuator system.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If a bushing pin is configured without a transverse through hole, then the bushing pin structural integrity is improved, but the ease of gripping for removal deteriorates

Engineering Contradiction:
Improvebushing pin structural integrityVSAvoidease of gripping for removal
Core Design Contradiction:
StrengthVSEase of operation

Solution Approach 1:

The invention introduces a coupler assembly as an intermediary device that engages with the bushing pin's recesses. The coupler collar and coupler pins work together to provide a gripping mechanism that does not require modifications to the bushing pin itself, thus maintaining structural integrity while enabling secure removal operations

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The coupler assembly is divided into separate components: a coupler collar and multiple coupler pins. This segmentation allows the pins to be individually inserted into the bushing pin recesses, providing distributed gripping points that secure the bushing pin without requiring a through hole

Inventive Principle:
Principle #1Segmentation

2Ease of operation

If a coupler assembly with multiple components is used to grip the bushing pin, then the ease of operation for removal is improved, but the device complexity increases

Engineering Contradiction:
Improveease of gripping for removalVSAvoidcoupler assembly complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The coupler collar serves multiple functions: it provides structural support for the coupler pins, defines the alignment geometry through the coupler through hole, and acts as the interface for applying removal forces. This multi-functionality reduces the need for additional specialized components

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentUS20230228298A1Coupler assembly for removing bushing pins
Publication Date: 2023.07.20 TIGER TOOL INT INC
  • US20230228298A1 patent drawing
  • US20230228298A1 patent drawing
  • US20230228298A1 patent drawing

AI summary

A coupler assembly for engaging a bushing pin of a bushing assembly, the bushing pin defining at least one bushing pin recess has a coupler collar and at least one coupler pin. The coupler collar defines a coupler through hole and at least one coupler pin passageway. The at least one coupler pin is adapted to be inserted at least partly through the at least one coupler pin passageway. With at least a portion of the bushing pin within the coupler through hole and the at least one bushing pin recess in a desired orientation relative to the at least one coupler pin passageway, the at least one coupler pin is inserted into the at least one coupler pin passageway such that the at least one coupler pin engages the at least one bushing pin recess to inhibit relative movement between the bushing pin and the coupler collar.