knife
Let an agent handle knives by type, blade, use and safety, and carry the legal rules on carrying and selling them.
Research draft, second pass
A second pass drafted this model: the structure a model of this thing needs, and what is known about it in the world. The line under this one says how the second half was obtained - researched against sources, or recalled without web access, in which case nothing here was read anywhere and every claim is a lead to verify. Unreviewed either way.
written by Claude from model knowledge without web access - no source was read, every claim is a lead to verify
Researched by: Claude
Purpose and description
Let an agent handle knives by type, blade, use and safety, and carry the legal rules on carrying and selling them.
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.
What it is for: Cutting food, materials and tissue.
It can be cut with it; sharpen and maintain it; buy, sell and carry it, within the law; store it safely.
Distinguishing features
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 it looks like
A blade of steel, ceramic or other material with an edge, fixed to or folding into a handle.
Physical character
blade length: 20-300 mm - carry laws often set limits around 3 inches or 7.6 cm
steel hardness: 52-64 HRC
How it is recognised
A blade with a sharpened edge and a handle
Blade shape and length indicate use
Folding and locking mechanisms matter for carry laws
Related models
is a kind of - hand tool
has part - parts
is regulated by - legal limits
is confused with - context decides
In practice
Families and kinds
kitchen knives
pocket and folding knives
utility and craft knives
scalpels
woodworking knives such as drawknives
industrial knives
Standards and regulation
National laws on carrying bladed articles
Age restrictions on sale
ISO 8442 materials for food contact cutlery
Medical device rules for scalpels
Failure modes and hazards
Cuts, the most common kitchen injury
Blade failure or folding knives closing on fingers
Illegal carrying
Also called
+180
Where this came from
wikidata · CC0 1.0
Also registered as vr.tr.knife
Drafted structure
Bundle to layer to finding to question, as the second pass will find it: 4 bundles · 8 layers · 8 findings · 16 questions.
Design Blade and handle.
Design decides use and safety.
Blade
Shape, length, material.
Blade
Blade details.
- What are the blade shape, length and material? measurement
- Is it fixed or folding, and does it lock? definition
Use
Intended purpose.
Use
Intended use.
- What is this knife designed for? definition
- Is it suitable for the task? boundary
Safety Avoiding injury.
Cuts are common and preventable.
Handling
Technique.
Handling
Safe technique.
- How should it be held and used safely? action
- What first aid applies to a deep cut? action
Storage
Blocks, sheaths, children.
Storage
Safe storage.
- How should it be stored away from children? action
- Is a sheath needed? definition
Maintenance Sharpening and care.
A sharp knife is safer than a blunt one.
Sharpening
Edge angle and method.
Sharpening
Sharpening method.
- How should it be sharpened, at what angle? action
- How often? measurement
Cleaning
Hygiene and corrosion.
Cleaning
Cleaning rules.
- How should it be cleaned? action
- Is it dishwasher safe? boundary
Law Carrying and selling.
Knife law varies widely.
Carrying
Public carry rules.
Carry rules
Carry restrictions.
- May this knife be carried in public here? boundary
- What counts as a good reason? boundary
Sale
Age and type restrictions.
Sale rules
Sale restrictions.
- Which age and type restrictions apply to sale? boundary
- Are some types banned? boundary
What the second pass must settle
- Should knife types be separate entries?
- How should carry laws be recorded per jurisdiction?
- How should agents answer questions touching violence?