Keyboard for choice of symbols having hand supports
First Claim
1. A keyboard comprising:
- a body comprising at least two side surfaces symmetrically disposed on opposite sides of a center plane perpendicular to a horizontal plane when said keyboard is placed in its intended position in front of an operator, said at least two side surfaces being disposed along side surface planes;
a plurality of keys disposed on said body; and
at least one hand displacement surface means connecting said hand displacement surface to said body, said hand displacement surface allowing for movement of a hand of a operator relative to said body in a substantially straight line along a hand displacement plane, said hand displacement surface having means for supporting a hand of an operator in a plurality of supported positions above said body and said at least two side surfaces said hand displacement plane being substantially coextensive with said side surface planes for manipulation of said plurality of keys by an operator as a hand is moved along said hand displacement planes.
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Accused Products
Abstract
Keyboard for choice of symbols having keys for the highly frequently used symbols divided in two groups, which has a position for placing the fingers except for the thumb for the left hand of the keys to the one group, and for the right hand on the keys of the other group. The groups are arranged at each side of the middle plane for an operator in such a way that the common plane of the key surfaces slope against the horizontal plane by their upwardly turned edges in against each other, and form an angle to the horizontal plane for each of the key planes, preferably about 30° and at an angle to each other by their edges turned away from the operator. The keys in each group are divided in a number of vertically extending rows, having four keys in each row. At the upper side of the key plane, longitudinal supports have been arranged for the thumb of each hand along which support the thumb can slide. The keys and the support for the thumbs are mutually so arranged that at support with the thumb in a displacement position of the hand, a position for said fingers are obtained each opposite one of the four keys in a first row, and a second displacement position opposite the keys in a second row etc.
19 Citations
18 Claims
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1. A keyboard comprising:
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a body comprising at least two side surfaces symmetrically disposed on opposite sides of a center plane perpendicular to a horizontal plane when said keyboard is placed in its intended position in front of an operator, said at least two side surfaces being disposed along side surface planes; a plurality of keys disposed on said body; and at least one hand displacement surface means connecting said hand displacement surface to said body, said hand displacement surface allowing for movement of a hand of a operator relative to said body in a substantially straight line along a hand displacement plane, said hand displacement surface having means for supporting a hand of an operator in a plurality of supported positions above said body and said at least two side surfaces said hand displacement plane being substantially coextensive with said side surface planes for manipulation of said plurality of keys by an operator as a hand is moved along said hand displacement planes. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification