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Published

knife

vr.tr.knife · thing-q32489

Let an agent handle knives by type, blade, use and safety, and carry the legal rules on carrying and selling them.

Thing Registry Physical world and living systems PHY.OBJ
Bundle → Layer → Finding → QuestionsClassifiersWhat it isWhy it existsDistinguishing featuresWhat robots and AI may and may not doMoral aspectsOwnersLinks to other meta-modelsIdentity and identifiersDirect propertiesRecognitionCapabilities and actionsHazards and failure modesStandards and interfacesContext of useSources

Bundle → Layer → Finding → Questions Filled

4 bundles · 8 layers · 8 findings · 16 questions

Design Blade and handle.

Blade

Shape, length, material.

Blade

Blade details.

  1. What are the blade shape, length and material? measurement
  2. Is it fixed or folding, and does it lock? definition

Use

Intended purpose.

Use

Intended use.

  1. What is this knife designed for? definition
  2. Is it suitable for the task? boundary
Safety Avoiding injury.

Handling

Technique.

Handling

Safe technique.

  1. How should it be held and used safely? action
  2. What first aid applies to a deep cut? action

Storage

Blocks, sheaths, children.

Storage

Safe storage.

  1. How should it be stored away from children? action
  2. Is a sheath needed? definition
Maintenance Sharpening and care.

Sharpening

Edge angle and method.

Sharpening

Sharpening method.

  1. How should it be sharpened, at what angle? action
  2. How often? measurement

Cleaning

Hygiene and corrosion.

Cleaning

Cleaning rules.

  1. How should it be cleaned? action
  2. Is it dishwasher safe? boundary
Law Carrying and selling.

Carrying

Public carry rules.

Carry rules

Carry restrictions.

  1. May this knife be carried in public here? boundary
  2. What counts as a good reason? boundary

Sale

Age and type restrictions.

Sale rules

Sale restrictions.

  1. Which age and type restrictions apply to sale? boundary
  2. Are some types banned? boundary

Classifiers Filled

Family
Thing Registry
Category
Physical world and living systems
Entry kind
thing
Plane
PHY
Domain
PHY.OBJ
Other names and narrower kinds
splitting band knife, wood splitting knife, shoe knife, snow knife, scalpel, race knife, drawknife, crooked knife, hacking knife, marking knife, ballpoint pen knife, grafter

What it is Filled

A tool with a cutting edge or blade, usually attached to a handle, used for cutting; kinds range from kitchen and pocket knives to scalpels and industrial knives.

Why it exists Filled

Let an agent handle knives by type, blade, use and safety, and carry the legal rules on carrying and selling them.

Distinguishing features Filled

  • A cutting tool with an edge and handle
  • Fixed or folding blade
  • Subject to carry, sale and age laws
  • Specialised knives such as scalpels are medical devices

What robots and AI may and may not do Filled

Must not

  • Help use a knife to threaten or harm a person.
  • Help carry knives where the law forbids it.
  • Sell knives to people below the legal age.
  • Leave knives where children can reach them.

Only with a human decision

  • Handing a knife to a person who may be at risk of harming themselves or others.

May

  • Describe knives, their uses, care and safe handling.
  • Store knives safely, such as out of reach of children.

Moral aspects Filled

  • Knives are essential tools and also weapons; context decides which.

Who is affected

  • Users
  • Children
  • Potential victims of knife crime

Owners Filled

Steward

The person who owns it; the law regulates sale and carrying.

Links to other meta-models Filled

parent

  • Q28692583 - registry parent class
  • Q39546 - registry parent class
  • Q8205328 - registry parent class

related

  • tool - hand tool
  • weapons and carry law - legal limits
  • weapon - context decides

contains

  • blade and handle - parts

What else AI and robots need to interact with it Filled

Identity and identifiers required Filled

  • Vercy registry: vr.tr.knife
  • Wikidata: Q32489 (https://www.wikidata.org/wiki/Q32489)

Direct properties required Filled

  • blade length: 20-300 mm - carry laws often set limits around 3 inches or 7.6 cm
  • steel hardness: 52-64 HRC

Recognition required Filled

  • A blade with a sharpened edge and a handle
  • Blade shape and length indicate use
  • Folding and locking mechanisms matter for carry laws
  • A blade of steel, ceramic or other material with an edge, fixed to or folding into a handle.

Capabilities and actions required Filled

  • cut with it
  • sharpen and maintain it
  • buy, sell and carry it, within the law
  • store it safely

Hazards and failure modes required Filled

  • Cuts, the most common kitchen injury
  • Blade failure or folding knives closing on fingers
  • Illegal carrying

Standards and interfaces required Filled

  • National laws on carrying bladed articles
  • Age restrictions on sale
  • ISO 8442 materials for food contact cutlery
  • Medical device rules for scalpels

Context of use required Filled

  • Cutting food, materials and tissue.
  • kitchen knives
  • pocket and folding knives
  • utility and craft knives
  • scalpels
  • woodworking knives such as drawknives
  • industrial knives

Sources Filled

  1. Wikidata item Q32489: knife - identity and sense of the item
  2. Wikipedia: Knife - general description of the item

Open questions

  • Should knife types be separate entries?
  • How should carry laws be recorded per jurisdiction?
  • How should agents answer questions touching violence?

Machine files

Card as JSON Specification Card backlog vercy.card/1

Provenance

thing registry research (pass 2) · unreviewed

Built from: models/things/publications/thing-q32489/spec.json