Himalayan Salt Roller Cracking Prevention via Partial Drilling

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Solution Overview

Problem

Himalayan salt crystals are difficult to machine into a cylindrical barrel due to their crystalline structure, which is prone to cracking and fracturing, and are naturally abrasive, posing skin irritation issues unless polished.

Innovation Solution

Machining shallow holes on both sides of the barrel for a surgical steel clasp to allow rotation and removal, combined with a high-polish finish to create a smooth, non-abrasive surface, and using surgical steel to prevent corrosion.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If a hole is drilled through the entire length of the barrel, then the clasp can hold the barrel, but the Himalayan salt crystal breaks due to cracking and fracturing

Engineering Contradiction:

Improvehole drillingVSAvoidcrystal integrity

Core Design Contradiction:

Ease of manufactureVSReliability

Solution Approach 1:

Instead of drilling through the entire length of the barrel, the patent applies partial action by drilling holes only through the ends of the barrel rather than completely through. This allows the clasp to engage with the barrel while minimizing stress concentration and preventing cracking in the brittle Himalayan salt crystal.

Inventive Principle:

Principle #16Partial or excessive action

2Ease of manufacture

If the Himalayan salt surface is left unpolished, then machining is simpler, but the surface is naturally abrasive and can irritate and scratch the skin

Engineering Contradiction:

Improvesurface finishingVSAvoidskin irritation

Core Design Contradiction:

Ease of manufactureVSObject-affected harmful factors

Solution Approach 1:

The patent applies parameter changes by transforming the surface characteristics of the Himalayan salt through high-polish machining. This changes the surface roughness parameter from naturally abrasive to smooth and non-abrasive, eliminating skin irritation while maintaining the therapeutic benefits of the roller.

Inventive Principle:

Principle #35Parameter changes

3Device complexity

If the barrel is made as a single integrated piece, then the structure is simpler, but the barrel cannot be easily replaced or heated/chilled

Engineering Contradiction:

ImprovestructureVSAvoidbarrel replaceability

Core Design Contradiction:

Device complexityVSAdaptability or versatility

Solution Approach 1:

The patent applies segmentation by dividing the roller device into separate components: the handle, the clasp mechanism, and the removable barrel. This allows the barrel to be easily detached, replaced, or subjected to thermal treatment (heating or chilling) independently, enhancing versatility while maintaining overall structural coherence through the clasp connection.

Inventive Principle:

Principle #1Segmentation

Data Source

PatentUS11648339B1Zen roller

Publication Date: 2023.05.16 ZEN ROLLER LLC

AI summary

Zen Roller is manufactured to our exact specifications so the Himalayan salt barrel does not break during machining or use. The other two pieces (a surgical steel clasp, and a handle) are designed to hold the barrel while allowing for rotation—and for easy removal and/or replacement. In addition, the outer surface of the Himalayan salt barrel is highly polished to our exact specifications so it is non-abrasive to the skin.