Published
chair
vr.tr.chair · thing-q15026
Let an agent describe chairs by type, dimensions, materials and safety, and treat wheelchairs as assistive devices with their own regulation.
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 Type and form.
Type
Dining, office, wheelchair.
Chair type
The type and intended use.
- What type of chair is this, and what is it for? definition
- Which standard applies to that type? provenance
Dimensions
Seat height, width, depth.
Dimensions
Key dimensions.
- What are its seat height, width and depth? measurement
- Is it adjustable? definition
Materials and strength What it is made of and what it holds.
Materials
Frame and upholstery.
Materials
The materials used.
- What materials are used, and are they fire-safe? definition
- How can it be repaired or recycled? action
Strength
Load and stability.
Strength rating
Load rating and stability.
- What load is it rated for? measurement
- Has it passed stability tests? provenance
Ergonomics Fit to the body.
Fit
Support and adjustment.
Ergonomic fit
Support provided.
- Does it support the back and allow feet flat on the floor? measurement
- Which adjustments are available? definition
Assessment
Workplace and clinical assessment.
Assessment
Who assesses suitability.
- Has the chair been assessed for this user? provenance
- When should a professional be involved? action
Mobility seating Wheelchairs.
Wheelchair type
Manual or powered.
Wheelchair spec
The wheelchair specification.
- What kind of wheelchair is it, and what are its limits? definition
- Which ISO 7176 tests has it passed? provenance
Service and repair
Keeping it working.
Service arrangement
Maintenance and repair.
- Who services and repairs it? provenance
- What is the plan if it fails away from home? action
Classifiers Filled
- Family
- Thing Registry
- Category
- Physical world and living systems
- Entry kind
- thing
- Plane
- PHY
- Domain
- PHY.OBJ
- Other names and narrower kinds
- Blue Chairs of Nice, wheelchair, manual wheelchair, sports wheelchair, motorized mobility scooter, passive wheelchair, Bath chair, electric wheelchair, standing wheelchair, self-propelled wheelchair, transit wheelchair, Mind Controlled Wheelchair
What it is Filled
A piece of furniture for one person to sit on, with a seat, a back and usually four legs; the class also covers wheelchairs and other seating devices.
Why it exists Filled
Let an agent describe chairs by type, dimensions, materials and safety, and treat wheelchairs as assistive devices with their own regulation.
Distinguishing features Filled
- For one person, with a backrest
- Wheelchairs are medical devices with their own standards
- Ergonomics matter for chairs used for long periods
- The academic chair is a different entry
What robots and AI may and may not do Filled
Must not
- Move or take a wheelchair or mobility seat away from its user.
- Leave a folding chair in a state where it can trap fingers or collapse.
- Restrain a person in a chair against their will.
Only with a human decision
- Adjusting or repairing a wheelchair someone depends on.
May
- Describe, select or arrange chairs and seating for a stated use.
- Report a wobbly, broken or collapsing chair to whoever keeps it.
Moral aspects Filled
- For wheelchair users, the chair is part of their mobility and independence.
Who is affected
- Users, including wheelchair users
- Children and older people
Owners Filled
Steward
The person who owns or uses it.
Links to other meta-models Filled
parent
- Q129006002 - registry parent class
- Q14745 - registry parent class
related
- furniture - seating furniture
- wheelchair - an assistive seating device
- academic chair - a homonym
- stool and bench - no backrest or for several people
What else AI and robots need to interact with it Filled
Identity and identifiers required Filled
- Vercy registry: vr.tr.chair
- Wikidata: Q15026 (https://www.wikidata.org/wiki/Q15026)
Direct properties required Filled
- seat height: 400-480 mm - dining and office chairs
- seat width: 400-500 mm
- load rating: 100-150+ kg - bariatric chairs higher
Recognition required Filled
- A seat for one with a backrest, unlike a stool or bench
- Wheels and push rims or motors for wheelchairs
- Office chairs have a swivel base and adjustments
- A seat raised on legs or a base, with a backrest and sometimes armrests; wheelchairs add wheels and push rims.
Capabilities and actions required Filled
- sit on it
- adjust it, where it is adjustable
- buy, repair or recycle it
- prescribe it, in the case of wheelchairs and special seating
Hazards and failure modes required Filled
- Tipping and collapse
- Finger traps in folding chairs
- Poor ergonomics causing back pain
- Wheelchair failures leaving users stranded
Standards and interfaces required Filled
- EN 1022 and EN 12520 domestic seating safety
- EN 1335 office chairs
- ISO 7176 wheelchair standards and medical device regulation
- EN 14988 children high chairs
Context of use required Filled
- Seating one person, for work, rest, dining or mobility.
- dining, office, armchair, folding, high chair for infants
- wheelchairs: manual, powered, sports
- mobility scooters as related devices
- design classics and public seating
Sources Filled
- Wikidata item Q15026: chair - identity and sense of the item
- Wikipedia: Chair - general description of the item
Open questions
- Should wheelchairs be a separate entry from chairs as furniture?
- How should ergonomic properties be recorded?
- How should assistive seating be linked to prescriptions?
Machine files
Provenance
thing registry research (pass 2) · unreviewed
Built from: models/things/publications/thing-q15026/spec.json