Adjustable active arm support for keyboard operators

Chairs and seats – Armrest – Attachable to diverse chairs or seats; i.e. – portable

Patent

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Details

297417, 297414, 297115, A47C 754

Patent

active

051434229

ABSTRACT:
An active arm support is provided for a chair which takes the weight of the arms and forearms off the shoulders, back and neck of the user while typing so as to support the arms of a typist in the same manner that a chair supports the body. The active arm support provides full arm and forearm support and is vertically adjustable and laterally adjustable and pivots horizontally and vertically while fully supporting the entire forearm. A hinge with a variable spring provides an assisted vertical lift while fully supporting the entire forearm. The presently disclosed active arm support releases the upper trapezius muscles from efforts to support the arms and forearms to provide relaxation in the neck and shoulders of the user, while actually performing typing and other tasks.

REFERENCES:
patent: D182211 (1958-02-01), Weill
patent: 1104615 (1914-07-01), Braden
patent: 1721221 (1929-07-01), Jauregui
patent: 1743802 (1930-01-01), Andress
patent: 2766463 (1956-10-01), Bendersley
patent: 3926473 (1975-12-01), Hogan
patent: 4159148 (1979-06-01), Schulz
patent: 4277102 (1981-07-01), Aaras et al.
patent: 4978171 (1990-12-01), Tateyama

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