Office chair
Office chairs, including secretarial and executive chairs, typically employ a chair back of the upholstered type. The chair back employs an inner support panel or shell on which is positioned a suitable cushion, and a covering such as of fabric or vinyl is typically wrapped around the cushion. The outer edge portions of the cushion and covering wrap around the outer edges of the intermediate shell, which outer edge portions of the cushion and covering are normally suitably clamped between the inner shell and the back panel of the chair back. Office chairs allow various adjustments that improve seating comfort in working and relaxed postures. For example, seat mounts that allow the entire chair to tilt backward and forward are very common. Some office chairs have back supports that tilt backward relative to the seat bottom or seat bottoms that slide forward and backward relative to the back support, or both. In the office equipment field, chairs having tilt mechanisms are common. Typically, the chairs are supported on wheeled pedestal bases. In tilting chairs, the chair iron typically includes a threaded spindle rod extending upwardly from a wheeled multiple foot base, a collar threaded on the spindle for adjusting the vertical position of the chair, a first bracket rigidly secured to the underside of the chair and a second bracket pivotably mounted to the first bracket and rigidly secured to the spindle. A sling chair is a type of chair in which all or a portion of the chair's seat or backrest, known in the field as the sling, is sustained in suspension. A subset of sling chairs include folding chairs that have slings made of a pliable material such as a woven fabric or mesh of natural or manmade material forming the back and/or seat that is suspended by a portion of the chair frame. Desk chairs used in offices are designed so that they can rotate or swivel about a vertical axis and tilt about a horizontal axis. Such chairs usually comprise a base resting on the floor, a chair frame including a seat, a backrest, lateral arm rests and a mechanism which permits the frame to rotate with respect to the base in two different planes as indicated above. A typical task chair has a cushioned seat and relatively low back. The chair is usually supported on a base having a plurality of casters to allow the chair to be easily moved about the work space. The chair may or may not have arms and other features such as adjustable seat and back height. Generally, known task chairs are of relatively inexpensive and lightweight construction. Folding chairs are commonly used to provide readily available seating accommodations. Generally, folding chairs are used to provide temporary seating accommodations and, when not in use, are stored. A folding chair typically is constructed of a pair of uprights which are generally parallel and spaced apart from each other, being joined together by one or more cross pieces, which also form the seat back. Other parts of the folding chair include a pair of struts, also generally parallel, spaced apart from each other, and joined by one or more cross pieces. Stackable chairs are widely used in institutional and commercial settings of all sorts, such as meeting and conference rooms, auditoriums, multi-purpose assembly halls, and gymnasiums that can be temporarily converted to auditoriums.
Office chair categories
Banker's chair
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