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Exercise Devices

Ergonomic-keyboard-and-operator-s-chair

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Ergonomic keyboard and operator's chair

Details

Inventors: O'Brien, Cathy M.; Paulson, J. Craig;
Assignee: Workplace Designs, Inc. (Stillwater, MN)
Primary Examiner: Hjerpe; Richard
Assistant Examiner: Lao; Lun-Yi
Attorney, Agent or Firm: Haugen and Nikolai

A combination ergonomic chair and bifurcated QWERTY apparatus integrally defined in the armrests of the chair. The combination apparatus includes a pair of adjustable arms for selectively orienting the armrests with respect to the operator. A standard QWERTY keyboard is bifurcated such that each half of the keyboard is defined on each of separate respective armrests. Each keyboard unit is attached to the armrests via a ball-in-socket arrangement and includes half of a QWERTY keyboard on one side, and a ten key numerical pad on the opposite side. A unique arrangement reduces stress, fatigue and injury associated with data entry work by facilitating proper postures to reduce upper extremity cumulative trauma. Each keyboard unit has a curve surface for provided palmar support to the hand while accessing the keypad. The chair and keyboard apparatus also includes a pair of rotary encoders integrally defined in the keyboard support structure to simulate a mouse. The backrest of the chair includes an elbow switch which intermittently disables the keyboard units which requires the operator to extend the elbows rearward to access the switch and reset the keyboard thus causing the operator to stretch periodically. The keyboard support structure is adaptable to most any standard ergonomic chair.

DETAILED DESCRIPTION What is claimed is: 1.
A combination chair and data entry keyboard assembly, comprising: a chair having a seat, a backrest attached to said seat, and a pedestal attached to and supporting said seat; a first and second support arm each coupled to said chair and extending upwardly; a pair of armrests, one coupled to each of said first and second support arms; and a data entry keyboard bifurcated into first and second keyboard units, each of said first and second keyboard units being spatially separated from the other and being adjustably connected to and supported by one of said arm rests for adjustably positioning each of said first and second keyboard units include means for supporting a palm of an operator.
2.
The combination as specified in claim 1 wherein said first and second support arms each include adjustment means and are selectively positionable with respect to said chair.
3.
The combination as specified in claim 1 wherein said first and second keyboard units further comprise means for selectively locking said respective keyboard unit with respect to said respective support arm to inhibit adjustment thereof.
4.
The combination as specified in claim 2 wherein each said first and second support arms has a height adjustment means for adjusting a height of said respective supported keyboard unit with respect to said chair.
5.
The combination as specified in claim 1 wherein each said keyboard units is pivotally attached to a distal end of said respective support arms in a ball-in-socket arrangement.
6.
The combination as specified in claim 1 wherein each said support arms bows outwardly from said seat of said chair.
7.
The combination as specified in claim 1 wherein each said first and second support arms has an upper surface contoured to receive an arm of an operator.
8.
The combination as specified in claim 1 wherein each said support arm comprises a base member coupled to said chair, a first member pivotally attached to said base member, a pair of second members each pivotally attached to said first member at one end, and a third member pivotally attached to the other end of each said second members

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