Dictionary
a seat for one person, with a support for the back "he put his coat over the back of the chair and sat down" the position of professor "he was awarded an endowed chair in economics" the officer who presides at the meetings of an organization "address your remarks to the chairperson" an instrument of execution by electrocution resembles an ordinary seat for one person "the murderer was sentenced to die in the chair" a particular seat in an orchestra "he is second chair violin" act or preside as chair, as of an academic department in a university "She chaired the department for many years" preside over "John moderated the discussion"
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Wikipedia
Wiktionarypar chair For other uses of the term ''chair'', please see chair (disambiguation).'' A chair is a piece of furniture for sitting, consisting of a seat, a back, and sometimes arm rests, commonly for use by one person. Chairs also often have legs to support the seat raised above the floor. Without back and arm rests it is called a stool. A chair for more than one person is a couch, sofa, settee, loveseat (two-seater without arm rest in between) or bench. A separate footrest for a chair is known as an ''Ottoman (furniture)ottoman'', ''hassock'' or poof. A chair mounted in a vehicle or in a theatre is simply called a seat. Chairs as furniture are typically not attached to the floor and so can be moved. The back often does not extend all the way to the seat to allow for ventilation. Likewise, the back and sometimes the seat are made of porous materials or have holes drilled in them for decoration and ventilation. The back may extend above the height of the head. There may be separate headrests. Headrests for seats in vehicles are important for preventing whiplash injuries to the neck when the vehicle is involved in a rear-end collision.See history of the chair for an extended look at chairs from antiquity to the modern day.
Design and ergonomics - Chair design considers intended usage, ergonomics (how comfortable it is for the occupant), as well as non-ergonomic functional requirements such as size, stackability, foldability, weight, durability, stain resistance and artistic design. Intended usage determines the desired seating position. "Task chairs", or any chair intended for people to work at a desk or table, including dining chairs, can only recline very slightly; otherwise the occupant is too far away from the desk or table. Dental chairs are necessarily reclined. Easy chairs for watching television or movies are somewhere in between depending on the height of the screen.Ergonomic designs distributes the weight of the occupant to various parts of the body. A seat that is higher results in dangling feet and increased pressure on the underside of the knees ("popliteal fold"). It may also result in no weight on the feet which means more weight elsewhere. A lower seat may shift too much weight to the "seat bones" ("ischial tuberosities"). A reclining seat and back will shift weight to the occupant's back. This may be more comfortable for some in reducing weight on the seat area, but may be problematic for others who have bad backs. In general, if the occupant is suppose to sit for a long time, weight needs to be taken off the seat area and thus "easy" chairs intended for long periods of sitting are generally at least slightly reclined. However, reclining may not be suitable for chairs intended for work or eating at table. The back of the chair will support some of the weight of the occupant, reducing the weight on other parts of the body. In general, backrests come in three heights: Lower back backrests support only the lumbar region. Shoulder height backrests support the entire back and shoulders. Headrests support the head as well and are important in vehicles for preventing "whiplash" neck injuries in rear-end collisions where the head is jerked back suddenly. Reclining chairs typically have at least shoulder height backrests to shift weight to the shoulders instead of just the lower back.Some chairs have foot rests. A stool or other simple chair may have a simple straight or curved bar near the bottom for the sitter to place his/her feet on. A kneeling chair adds an additional body part, the knees, to support the weight of the body. A sit-stand chair distributes most of the weight of the occupant to the feet.Many chairs are padded or have cushions. Padding can be on the seat of the chair only, on the seat and back, or also on any arm rests and/or foot rest the chair may have. Padding will not shift the weight to different parts of the body (unless the chair is so soft that the shape is altered). However, padding does distribute the weight by increasing the area of contact between the chair and the body. A hard wood chair feels hard because the contact point between the occupant and the chair is small. The same body weight over a smaller area means greater pressure on that area. Spreading the area reduces the pressure at any given point. In lieu of padding, flexible materials, such as wicker, may be used instead with similar effects of distributing the weight. Since most of the body weight is supported in the back of the seat, padding there should be firmer than the front of the seat which only has the weight of the legs to support. Chairs that have padding that is the same density front and back will feel soft in the back area and hard to the underside of the knees.There may be cases where padding is not desirable. For example, in hot climates, padding with fabric or plastic covers is often uncomfortable against the skin. Where padding is not desirable, contouring may be used instead. A contoured seat pan attempts to distribute weight without padding. By matching the shape of the occupant's buttocks, weight is distributed and pressure at any given point is reduced.Actual chair dimensions are determined by measurements of the human body or anthropometryanthropometric measurements. Individuals may be measured for a custom chair. Anthropometric statistics may be gathered for mass produced chairs. The two most relevant anthropometric measurement for chair design is the popliteal height and buttock popliteal length. For someone seated, the popliteal height is the distance from the underside of the foot to the underside of the thigh at the knees. It is sometimes called the "stool height". (The term "sitting height" is reserved for the height to the top of the head when seated.) For American men, the median popliteal height is 16.3 inches and for American women it is 15.0 inchescdc.gov. The popliteal height, after adjusting for heels, clothing and other issues is used to determine the height of the chair seat. Mass produced chairs are typically 17 inches high.For someone seated, the buttock popliteal length is the horizontal distance from the back most part of the buttocks to the back of the lower leg. This anthropometric measurement is used to determine the seat depth. Mass produced chairs are typically 38-43 cm deep.Additional anthropometric measurements may be relevant to designing a chair. Hip breadth is used for chair width and armrest width. Elbow rest height is used to determine the height of the armrests. The buttock-knee length is used to determine "leg room" between rows of chairs. "Seat pitch" is the distance between rows of seats. In some airplanes and stadiums the seat pitch is so small that there is sometimes there is no leg room for the average person.For adjustable chairs, the aforementioned principles are applied in adjusting the chair to the individual occupant.
Arm rests - A chair may have armrests. Armrests will support part of the body weight through the arms if the arms are resting on the armrests. Armrests further have the function of making entry and exit from the chair easier (but from the side it becomes more difficult). Armrests should support the forearm and not the sensitive elbow area. Hence in some chair designs, the armrest is not continuous to the chair back, but is missing in the elbow area.A couch, bench, or other arrangement of seats next to each other may have arm rest at the sides and/or arm rests in between. The latter may be provided for comfort, but also for privacy e.g. in public transport and other public places, and to prevent lying on the bench or coach. Arm rests prevent or complicate both desired and undesired proxemicsproximity. A loveseat in particular, has ''no'' arm rest in between.See also !Movie_theater#.22The_back_row. 22seats in movie theaters, and !commons:Category:benches pictures of benches with and without arm rests.
Chair seats - Chair seats vary widely in construction and may or may not match construction of the chair's back. Some systems include:Solid center seats where a solid material forms the chair seat.Solid wood, may or may not be shaped to human contours.Wood slats, often seen on outdoor chairsPadded leather, generally a flat wood base covered in padding and contained in soft leatherStuffed fabric, similar to padded leatherMetal seats of solid or open designMolded plasticStone, often marbleOpen center seats where a soft material is attached to the tops of chair legs or between stretchers to form the seat.Wicker, woven to provide a surface with give to itLeather, may be tooled with a designFabric, simple covering without supportTape, wide fabric tape woven into seat, seen in lawn chairs and some old chairsCaning (furniture)Caning, woven from Juncaceaerush, reed (plant)reed, rawhide, heavy paper, strong grasses, cattails to form the seat, often in elaborate patternsSplint, Ash treeash, oak or hickory strips are woven Metal, Metal mesh or wire woven to form seat
Standards and specifications - Design considerations for chairs have been codified into standards. ISO 9241-5:1988iso.ch, "Ergonomic requirements for office work with visual display terminals (VDTs) -- Part 5: Workstation layout and postural requirements " is the most common one for modern chair design. There are multiple specific standards for different types of chairs. Dental chairs are specified by ISO 6875. Bean bag chairs are specified by ANSI standard ASTM F1912-98webstore.ansi.org. ISO 7174 specifies stability of rocking and tilting chairs. ASTM F1858-98 specifies lawn chairs. ASTM E1822-02b defines the combustibility of chairs when they are stacked.The Business and Institutional Furniture Manufacturer's Association (BIFMA) defines BIFMA X5.1 for testing of commercial-grade chairs. It specifies things likelifetime.com:chair backstrength of 150 pounds (68 kg)chair stability if weight is transferred completely to the front or back legsleg strength of 75 pounds (34 kg) applied one inch (25 mm) from the bottom of the legseat strength of 225 pounds (102 kg) dropped from six inches (150 mm) above the seatseat cycle strength of 100,000 repetitions of 125 pounds (57 kg) dropped from 2 inches (50 mm) above the seatThe specification further defines heavier "proof" loads that chairs must withstand. Under these higher loads, the chair may be damaged, but it must not fail catastrophically.Large institutions that make bulk purchases will reference these standards within their own even more detailed criteria for purchasetbpc.state.tx.us. Governments will often issue standards for purchases by government agencies (e.g. Canada's Canadian General Standards Board CAN/CGSB 44.15M techstreet.com on "Straight Stacking Chair, Steel").
Accessories - In place of a built-in footrest, some chairs come with a matching ottoman. An ottoman is a short stool to be used as a footrest but can sometimes be used as a stool. If matched to a glider, the ottoman may be mounted on swing arms so that the ottoman rocks back and forth with the main glider.A chair cover is a temporary fabric cover for a side chair. They are typically rented for formal events such as wedding receptions to increase the attractiveness of the chairs and decor. The chair covers may come with decorative chair ties, a ribbon to be tied as a bow behind the chair. Covers for sofas and couches are also available for homes with small children and pets. In the second half of 20th century, some people used custom clear plastic covers for expensive sofas and chairs to protect them.Chair pads are cushions for chairs. Some are decorative. In cars, they may be used to increase the height of the driver. Orthopedic backrests provide support for the back. Obus Forme is a major brand in this category and helped develop this market niche. Car seats sometimes have built-in and adjustable lumbar supports.Chair mats are plastic mats meant to cover carpet. This allows chairs on wheels to roll easily over the carpet and it protects the carpet. They come in various shapes, some specifically sized to fit partially under a desk.Remote control bags can be draped over the arm of easy chairs or sofas and used to hold remote controls. They are counter-weighted so as to not slide off the arms under the weight of the remote control.
English phrases relating to chairs - A movie or a story is said to ''keep you on the edge of your chair'', if it is suspenseful and engaging.If you ''nearly fell off your chair'', it was because you were very surprised.Activities that are likely to be made insignificant or undone by some future event are said to be like ''rearranging the deckchairs on the RMS TitanicTitanic''. When English-speaking philosophers talk about the material world as opposed to ideas, their phrase is ''tables and chairs''.
See also - commonscatChairs List of chairs for an extended list of various chair types and makes.Electric chair for information on chairs used in judicial executions.History of the chairBean bagCategory:Chairs ca:Cadirade:Stuhl !(Möbel)es:Sillaeo:Seĝoit:Sed ianl:Stoelja:椅子no:Stolnn:S tolfi:Tuolisv:Stol
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Websites
Discount modern architectural furniture for home and office.
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ChallengeNet.net
Official website of James Travis, a physically challenged martial artist who performs from a wheelchair.
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Pews, Chairs and Auditorium Seats from Worship Seating
Southern California representative offers pews, chairs, auditorium seats and pulpit furniture for worship settings. Read about the companies, view photos and find a partial list of installations.
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Intellectual Property Patents Trademarks Copyrights Trade Secrets
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Wrought iron artistic handwork
Since 1927 wrought iron artistic handwork. Gate, balustrades handrail, grating, bed, table, chair
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peter masters
maker and deisgner of furniture
http://burnttoastdesign.co.uk/
watdesign
young and fresh dutch designers making clever design. From product and interior to total branding projects.
http://www.watdesign.nl/
SKY Chairs - The Original Canvas Hanging Chair
This is the official web site of SKY Chairs. The SKY Chair was invented by our family, won an international design award in Toyko in 1974 and continues to be hand made in our family workshop in Colorado.
http://www.skychair.com/
Kidino / Création mobilier contemporain
Design furniture by gilles roudot /kidino
http://www.kidino.com/
Woodking24(india) Furniture
This are AN BS EN ISO 9001:2000(UK) Company For Design,Manf.,& Export of Antique Reproduction,Traditional,Handcrafted & Modern Furniture,Handicrafts in Worldwide. Website:http://www.woodking24india.com/ Website : http://woodking24India.b2bquote.com/ Website:http://woodking24.exporterindias.com/ Website:http://www.geocities.com/woodking24in/countryside.html Website:http://www.indoorfurniture.co.in Website:http://www.outdoorfurniture.co.in Website:http://www.rusticfurniture.co.in Website:http://www.indianfurniture.co.in Website:http://www.homefurniture.co.in (M)+91-0-9824097357,(O)+91-268-2521629,2550951
http://www.woodking24india.com/
BedLounge.com
Introducing the ergonomic BedLounge, a natural evolution of the traditional husband pillow or bedrest designed to adjust to a user’s body shape and comfort preferences.
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Centicare Corporation
Providing the Health Care Industry QUALITY IV Poles, Lab equipment, Linen carts and Shower Chair Commodes for over 20 years
http://www.centicare.com/
DEW Discount Seating
Home of discount prices on seating solutions like executive chairs, industrial seating, drafting chairs, stackable seating, and more!
http://www.economychairs.com/
The Electric Chair
Gory details about the use of the electric chair as a form of capital punishment.
http://www.theelectricchair.com/
The Fifth Chair Foundation
A not-for-profit foundation which fosters online bridge education.
http://www.fifthchair.org/
Women in the Director's Chair (WIDC)
An international media arts and activist center which exhibits, promotes, and educates about media made by women, girls and transgendered people that expresses a diversity of cultures, experiences, and issues. Highlights include national tour, a video archive, programs and services.
http://www.widc.org/
ABC.com
The official web site for ABC Television. Includes behind-the-scenes show exclusives, cast biographies and photos and video clips.
http://abc.go.com/
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