Adjustable ergonomic keyboard for use with stationary palm and elements thereof
First Claim
1. A keyboard with a keypad mounted thereupon, wherein the keypad is comprised of a plurality of finger key arrays adjacent to one another on the keyboard, wherein the fingers are identified as the index, long, ring and short fingers of a hand with a palm and wherein each finger key array has associated with it specific keys and wherein each finger key array has a different curvature to accommodate the range of motion of that finger to actuate the respective keys when the wrist and palm are in a stationary position and wherein the keys of each key array are positioned along an arc located between the maximum and the minimum range of flexion of finger motion through the metacarpophalangeal, proximal interphalangeal and distal interphalangeal joints without any wrist motion;
- wherein at least one key in each array is defined by the location of a finger tip when the metacarpophalangeal, proximal interphalangeal and distal interphalangeal joints for that finger are all in flexion and wherein the keyboard further includes a palm support adapted to support the palm in a stationary position relative to the keyboard while permitting free motion of the metacarpophalangeal joint and wherein each key has a top surface and wherein a projection perpendicular to the key top surface of at least one key in a finger key array will intersect within the bounds of the arc of that finger key array.
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Accused Products
Abstract
An ergonomic keyboard as shown in FIG. 3A for use with a stationary palm wherein the keys (15) of the keyboard are actuated only by motion of the joints in the digits. The keyboard may have a thumb region (20), a palm rest region (8) and a hypothenar rest region which are discrete parts and are adjustable relative to one another along a longitudinal axis. Some keys may be actuated by the back surface of the digits. The keyboard may be on an upper portion (2) which is mounted on a base (1) such that three dimensional rotational adjustment is possible between the upper portion and base. The position of the keyboard relative to a user may be adjusted. The spacing of the keys on the keyboard may be spaced at different intervals and have different forces for actuation.
116 Citations
23 Claims
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1. A keyboard with a keypad mounted thereupon, wherein the keypad is comprised of a plurality of finger key arrays adjacent to one another on the keyboard, wherein the fingers are identified as the index, long, ring and short fingers of a hand with a palm and wherein each finger key array has associated with it specific keys and wherein each finger key array has a different curvature to accommodate the range of motion of that finger to actuate the respective keys when the wrist and palm are in a stationary position and wherein the keys of each key array are positioned along an arc located between the maximum and the minimum range of flexion of finger motion through the metacarpophalangeal, proximal interphalangeal and distal interphalangeal joints without any wrist motion;
- wherein at least one key in each array is defined by the location of a finger tip when the metacarpophalangeal, proximal interphalangeal and distal interphalangeal joints for that finger are all in flexion and wherein the keyboard further includes a palm support adapted to support the palm in a stationary position relative to the keyboard while permitting free motion of the metacarpophalangeal joint and wherein each key has a top surface and wherein a projection perpendicular to the key top surface of at least one key in a finger key array will intersect within the bounds of the arc of that finger key array.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A keypad on a keyboard comprised of a plurality of finger key arrays adjacent to one another on the keyboard, wherein the fingers are identified as the index, long, ring and short fingers and wherein each finger key array has associated with it specific keys and wherein each finger key array has a different curvature to accommodate the range of motion of that finger to actuate the respective keys when the wrist and palm are in a stationary position and wherein the keys of each key array are positioned along an arc located between the maximum and the minimum range of flexion of finger motion through the metacarpophalangeal, proximal interphalangeal and distal interphalangeal joints without any wrist motion;
- wherein at least one key in each array is defined by the location of a finger tip when the metacarpophalangeal, proximal interphalangeal and distal interphalangeal joints for that finger are all in flexion; and
wherein each key has a top surface and wherein a projection perpendicular to the top surface of at least one key in a finger key array will intersect within the bounds of the keys in the arc. - View Dependent Claims (22)
- wherein at least one key in each array is defined by the location of a finger tip when the metacarpophalangeal, proximal interphalangeal and distal interphalangeal joints for that finger are all in flexion; and
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23. A keypad on a keyboard comprised of a plurality of finger key arrays adjacent to one another on the keyboard, wherein the fingers are identified as the index, long, ring and short fingers and wherein each finger key array has associated with it specific keys and wherein each finger key array has a different curvature to accommodate the range of motion of that finger to actuate the respective keys when the wrist and palm are in a stationary position and wherein the keys of each key array are positioned along an arc located between the maximum and the minimum range of flexion and extension of finger motion through the metacarpophalangeal, proximal interphalangeal and distal interphalangeal joints without any wrist motion and wherein at least one key in each array is defined by the location of a finger tip when the metacarpophalangeal, proximal interphalangeal and distal interphalangeal joints for that finger are all in flexion and wherein at least two keys are positioned along the arc and separated from each other by an angle of at least 135 degrees and wherein the angle is measured from angle lines extending through the keys and perpendicular to the key support surface and wherein each key has a top surface and wherein a projection perpendicular to the key top surface of at least one key in a finger key array will intersect within the bounds of the arc of that finger key array.
Specification