Interchangeable Pole Adapter With Sleeve Locking Coupling

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Solution Overview

Problem

Existing interchangeable mount systems face challenges in secure and easy assembly and disassembly of interchangeable heads with poles, particularly for common users, limiting their usability and versatility.

Innovation Solution

An adaptor with a female coupling member featuring a movably mounted sleeve allows for selective decoupling and non-removable coupling of poles and interchangeable heads, using a male coupling member with indents or protrusions for secure engagement, facilitating user-friendly mounting and replacement.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a secure coupling mechanism is used to non-removably attach interchangeable heads to poles, then the reliability of attachment is improved, but the ease of operation for assembly and disassembly deteriorates

Engineering Contradiction:
Improveattachment securityVSAvoidassembly and disassembly convenience
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The locking contour is designed to be dynamically changeable between locked and unlocked states. The sleeve can be moved axially to shift the locking contour between engaged and disengaged positions relative to the male coupling member, enabling the system to transition between secure attachment and easy removal states

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The locking contour acts as an intermediary element between the female coupling member (adaptor) and the male coupling member (interchangeable head). This intermediate locking mechanism provides secure attachment when engaged but allows for controlled release when the sleeve is moved, resolving the contradiction between secure attachment and ease of removal

Inventive Principle:
Principle #24Intermediary (Mediator)

2Ease of operation

If a simple coupling mechanism is used for easy assembly and disassembly of interchangeable heads, then the ease of operation is improved, but the reliability of secure attachment deteriorates

Engineering Contradiction:
Improveassembly and disassembly convenienceVSAvoidattachment security
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The coupling mechanism is segmented into distinct functional components: the female coupling member (adaptor), the male coupling member (interchangeable head), and the locking contour with sleeve. This segmentation allows each component to perform its specific function - the male and female coupling members provide basic connection, while the locking contour with sleeve provides secure attachment, enabling both ease of operation and reliability

Inventive Principle:
Principle #1Segmentation

3Ease of operation

If a movable sleeve mechanism is added to enable selective locking and unlocking, then the ease of operation for repeated assembly and disassembly is improved, but the device complexity increases

Engineering Contradiction:
Improverepeated assembly and disassembly convenienceVSAvoidcoupling mechanism complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The locking contour is merged with the female coupling member (adaptor) as an integrated component, and the sleeve is merged with the locking contour structure. This merging eliminates the need for separate locking mechanisms, reducing overall device complexity while maintaining the ability to selectively lock and unlock for repeated assembly and disassembly operations

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentEP4048906B1Adapter for coupling pole with interchangeable heads
Publication Date: 2024.05.29 HUSQVARNA AB
  • EP4048906B1 patent drawingFigure 1
  • EP4048906B1 patent drawingFigure 2
  • EP4048906B1 patent drawingFigure 3

AI summary

An adaptor (120) for coupling a pole (100) with one or more interchangeable heads (130). The adaptor (120) having a first end (122) and a second end (124) and a body portion (140) in between. The first end (122) has a mounting seat (126) mounting the adaptor (120) with at least one of the pole (100) and one of the one or more interchangeable heads (130), and the second end (124) has the female coupling member (150). The adaptor (120) is characterized in that the adaptor (120) is formed as the female coupling member (150) that includes a sleeve (128). A movement of the sleeve (128) allows a locking contour (142) to selectively decouple and non-removably couple the pole (100) and one of the one or more interchangeable heads (130).