Pivotable Gardening Head With Handle-Locked Coupling Mechanism

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Solution Overview

Problem

Multi-purpose gardening tools often rely on complex mechanical systems, making them expensive and difficult to operate, and typically allow transformation into only two gardening instruments, which is insufficient for the needs of landscaping professionals.

Innovation Solution

A multi-purpose gardening tool with a simple coupling mechanism that allows the gardening head to be pivotally connected to an elongated pole and locked in various positions, enabling transformation into multiple distinct gardening instruments using a handle-mounted locking mechanism, and an alternative design where a rake and spade are coupled with a sliding mechanism for additional configurations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If complex mechanical means are used to transform the tool into different gardening instruments, then the tool can achieve multiple functions, but the manufacturing cost increases and the tool becomes difficult to operate

Engineering Contradiction:
Improvetransformation capabilityVSAvoidmechanical system complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The gardening tool is divided into separate functional components (rake head, hoe blade, edger blade) that can be independently attached or detached from the handle, allowing each component to be optimized separately while simplifying the overall transformation mechanism

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

A single handle design serves multiple purposes by accommodating different gardening components through a universal attachment interface, enabling one handle to function with various heads without requiring complex transformation mechanisms

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

2Adaptability or versatility

If complex mechanical means are used to transform the tool, then multiple gardening functions are achieved, but the manufacturing cost increases

Engineering Contradiction:
Improvegardening instrument varietyVSAvoidmanufacturing cost
Core Design Contradiction:
Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

By segmenting the tool into modular components that can be manufactured separately and assembled through simple connections, the manufacturing process becomes more straightforward and cost-effective while maintaining multi-functionality

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Instead of designing a single complex tool that transforms into different instruments, the invention inverts the approach by creating separate simple components that attach to a universal handle, simplifying manufacturing while achieving the same functional versatility

Inventive Principle:
Principle #13The other way round (Inversion)

3Device complexity

If the tool is designed to transform between only two gardening instruments, then the mechanical system is simpler, but it fails to meet the needs of landscaping professionals who require several different tools

Engineering Contradiction:
Improvetransformation mechanism simplicityVSAvoidnumber of gardening instruments
Core Design Contradiction:
Device complexityVSAdaptability or versatility

Solution Approach 1:

The handle is designed as a universal platform that can accommodate multiple types of gardening components (rake heads, hoe blades, edger blades) through standardized attachment interfaces, enabling professionals to have access to several different gardening instruments without increasing mechanical complexity

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

Solution Approach 2:

The gardening system is segmented into independent functional components that can be selectively attached to the handle, allowing users to configure the tool for different gardening tasks by simply changing the attached component rather than relying on complex transformations

Inventive Principle:
Principle #1Segmentation

Data Source

PatentUS7987658B1Multi-purpose garden tool with pivotable gardening head
Publication Date: 2011.08.02 FRAGALE FR
  • US7987658B1 patent drawing
  • US7987658B1 patent drawing
  • US7987658B1 patent drawing

AI summary

A multi-purpose tool includes, in one embodiment, an elongated pole and a head that are pivotally joined by a coupling mechanism. The head is a unitary member that includes a semi-circular edger plate and a comb-like rake. The coupling mechanism includes a pivot screw pivotally connecting the pole to the gardening head, a lock rod extending longitudinally through the elongated pole, and a pull cam mounted within one end of the hollow pole, the pull cam being threadingly coupled to one end of the lock rod. By disposing the gardening head in a variety of fixed positions relative to the pole, a plurality of distinct gardening instruments can be created. Locking the position of the gardening head relative to the elongated pole is achieved through rotation of a handle that is mounted onto the free end of the pole, the handle being connected to the free end the lock rod.