Sprinkler Riser Tool for Hands-Free Maintenance

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Solution Overview

Problem

Current methods for maintaining or replacing sprinkler nozzles and filters in pop-up water sprinklers are inefficient and can cause damage due to the need for manual handling and securing of the riser, which restricts movement and increases the risk of injury and tool-related frustration.

Innovation Solution

A hand tool that allows access to and securement of a cylindrical riser by lifting between the nozzle lip and external sprinkler housing, clamping the riser in an extended position, eliminating the need for manual adjustment and enabling hands-free maintenance across a range of diameters from 0.785 inches to 1.168 inches.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If manual handling and securing of the riser is used, then the user can access sprinkler components, but the user's movement is restricted and the risk of injury increases

Engineering Contradiction:
Improveuser movement freedomVSAvoidinjury risk
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent introduces a specialized tool as an intermediary device between the user and the riser. This tool includes a clamping mechanism with jaws that grip the riser, and a lever arm system that provides mechanical advantage. The tool acts as a mediator that secures the riser while allowing the user to work freely without direct manual handling, thus improving ease of operation and reducing injury risk.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The tool incorporates a spring-loaded clamping mechanism that automatically maintains grip on the riser without requiring continuous user input. Once the tool is engaged with the riser, the spring force maintains the clamping pressure, allowing the riser to secure itself through the tool's design rather than requiring constant manual intervention.

Inventive Principle:
Principle #25Self-service

2Productivity

If the riser is secured manually by hand, then access to components is possible, but efficiency is reduced and damage can occur

Engineering Contradiction:
Improvemaintenance efficiencyVSAvoidoperational complexity
Core Design Contradiction:
ProductivityVSEase of operation

Solution Approach 1:

The tool serves as an intermediary that eliminates the need for manual hand securing. The clamping jaws grip the riser securely, and the lever arm system provides mechanical advantage, allowing the user to engage and disengage the tool with minimal effort. This intermediary device streamlines the maintenance process, improving productivity while keeping operational complexity low through intuitive mechanical operation.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent replaces the manual mechanical system of hand-gripping and finger-based securing with a tool-based mechanical system. The tool uses a lever arm and clamping jaws that provide superior gripping force and control, substituting the inadequate human hand mechanism with a purpose-designed mechanical device that enhances both efficiency and ease of operation.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Reliability

If the riser is secured without a tool, then simplicity is maintained, but the risk of slips and damage increases

Engineering Contradiction:
Improvesprinkler damage riskVSAvoidtool requirement
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The tool acts as a protective intermediary between the user and the riser. The clamping jaws provide distributed contact pressure that secures the riser without creating stress concentration points that could lead to damage. The tool's rigid structure and designed contact surfaces ensure that forces are applied evenly, reducing the risk of slips and damage compared to direct manual handling.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The tool's design incorporates cushioning elements and distributed force application that prevent sudden slips or excessive forces from damaging the riser. The spring-loaded mechanism provides controlled pressure that accommodates minor variations in riser diameter and position, cushioning against potential damage before it occurs rather than allowing direct impact or slip forces to transfer to the sprinkler components.

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

4Adaptability or versatility

If manual adjustment is used for different riser diameters, then versatility is achieved, but time is lost due to repeated adjustments

Engineering Contradiction:
Improvediameter accommodationVSAvoidadjustment time
Core Design Contradiction:
Adaptability or versatilityVSLoss of time

Solution Approach 1:

The tool is designed with universal adaptability to accommodate multiple riser diameters within a specified range (0.785 to 1.168 inches). The clamping jaws and lever arm system are configured to work effectively with various sizes without requiring adjustment mechanisms. This multi-functional design allows the same tool to securely grip different diameter risers, eliminating the need for size-specific tools or repeated adjustments.

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

Solution Approach 2:

The tool leverages the elastic properties of its components and the mechanical advantage of its lever arm system to adapt to different riser diameters through parameter changes in the clamping force distribution. Rather than requiring physical adjustment of the tool's geometry, the system adjusts the pressure and contact points automatically based on the riser diameter, maintaining secure grip across the full range of sizes without user intervention.

Inventive Principle:
Principle #35Parameter changes

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 tool enhances maintenance efficiency by providing secure, hands-free access to the sprinkler components, reducing the risk of damage and user injury while accommodating various diameters without manual adjustment, thus improving the overall maintenance process.

Implementation Method 1

a compression spring positioned within the left and right arms and biased toward an open position of the tool

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentUS11981003B2Systems and methods for selectively securing a cylindrical body
Publication Date: 2024.05.14 MERRILL SCOTT B
  • US11981003B2 patent drawing
  • US11981003B2 patent drawing
  • US11981003B2 patent drawing

AI summary

At least some implementations of the present invention include the ability to access and secure a compressed riser portion of a pop-up sprinkler. Access is gained through use of the tip of the tool, sloped for access clearance between the sprinkler nozzle “lip” and outer sprinkler base. Once raised from the outer sprinkler casing, the riser is secured in a designated clamping bay or within designated clamping points. This two-pronged approach accommodates varying diameter of sprinkler risers and increases the multi-use function of the tool. The tool's overall inward tension is provided by an engineered compression spring designed with adequate outward tension without making hand compression use of the tool restrictive. Use of the tool in an inward sweeping motion toward the sprinkler allows for raising and clamping the riser in a quick and simple fashion. Thereafter, allowing free and open-hand access for quick and thorough maintenance, repair, exchange or adjustment of the sprinkler nozzle and filter.