Keyboard support mechanism

Claim 2

An improved auxiliary shelf mechanism for vertically and horizontally positioning an auxiliary shelf, including a means for attaching the auxiliary shelf to a desk so that the auxiliary shelf may be moved horizontally relative to the desk, wherein the improvement comprises: an articulating arm mechanism comprising: (a) a mounting bracket, the mounting bracket having a front end and a back end; (b) an upper arm having a rear end and a front end, the upper arm being pivotally connected to the mounting bracket at a first pivot point, the rear of the upper arm being defined as the end of the upper arm closest to the mounting bracket; the front end being defined as the end opposite the rear end; (c) a shelf bracket pivotally connected to the upper arm at a second pivot point; (d) a side arm having a front end and a rear end, the side arm being pivotally connected to the shelf bracket at a third pivot point; the side arm being further attached to the mounting bracket at a fourth pivot point; the side arm having within it a first opening such that the side arm can be pivoted relative to the mounting bracket about the fourth pivot point and can be reciprocatingly moved relative to the fourth pivot point; the front of the side arm being defined as the end closest to the third pivot point, and the rear of the side arm being defined as the end opposite from the front; (e) a stopping means, the stopping means having a first side facing towards the rear of the side arm, such that when the side arm moves laterally relative to the fourth pivot point, the rear of the side arm can contact the first side of the stopping means; wherein the stopping means is movable between a first position and a second position, the first position being closer to the front end of the mounting bracket than the second position, and the second position being closer to the back end of the mounting bracket than the first position.

Claim 3

The auxiliary shelf mechanism of claim 1, wherein the position of the stopping means is adjusted by means of a lever mechanism, the lever mechanism comprising an adjustment lever, a setting bracket, and a sliding bracket.

Claim 4

The auxiliary shelf mechanism of claim 1, wherein the position of the stopping means can be fixed at either the first position, or the second position, or at any position between the first and second positions.

Claim 5

The auxiliary shelf mechanism of claim 3, wherein the position of the stopping means is adjusted by means of a threaded screw mechanism.

Claim 6

An improved auxiliary shelf mechanism for vertically and horizontally positioning an auxiliary shelf, including a means for attaching the auxiliary shelf to a desk so that the auxiliary shelf may be movably positioned relative to the desk, wherein the improvement comprises: an articulating arm mechanism comprising: (a) a mounting bracket, the mounting bracket having a front end and a back end; (b) an upper arm having a rear end and a front end, the upper arm being pivotally connected to the mounting bracket at a first pivot point, the rear of the upper arm being defined as the end of the upper arm closest to the mounting bracket, the front end being defined as the end opposite the rear end; (c) a shelf bracket pivotally connected to the upper arm at a second pivot point; (d) a side arm having a front end and a rear end, the side arm being pivotally connected to the shelf bracket at a third pivot point; the side arm being further attached to the mounting bracket at a fourth pivot point; the side arm having within it a first opening such that the side arm can be pivoted relative to the mounting bracket about the fourth pivot point and can be reciprocatingly moved relative to the fourth pivot point; the front of the side arm being defined as the end closest to the third pivot point, and the rear of the side arm being defined as the end opposite from the front; (e) a stopping means, the stopping means having a first side facing towards the rear of the side arm, such that when the side arm moves laterally relative to the fourth pivot point, the rear of the side arm can contact the first side of the stopping means; wherein the side arm and the upper arm are not substantially parallel to each other, and further wherein the first and fourth pivot points are closer together than the second and third pivot points.

Claim 7

An improved auxiliary shelf mechanism for vertically and horizontally positioning an auxiliary shelf, including a means for attaching the auxiliary shelf to a desk so that the auxiliary shelf may be movably positioned relative to the desk, wherein the improvement comprises: an articulating arm mechanism comprising: (a) a mounting bracket, the mounting bracket having a front end and a back end; (b) an upper arm having a rear end and a front end, the upper arm being pivotally connected to the mounting bracket at a first pivot point, the rear of the upper arm being defined as the end of the upper arm closest to the mounting bracket, the front end being defined as the end opposite the rear end; (c) a shelf bracket pivotally connected to the upper arm at a second pivot point; (d) a side arm having a front end and a rear end, the side arm being pivotally connected to the shelf bracket at a third pivot point; the side arm being further attached to the mounting bracket at a fourth pivot point; the side arm having within it a first opening such that the side arm can be pivoted relative to the mounting bracket about the fourth pivot point and can be reciprocatingly moved relative to the fourth pivot point; the front of the side arm being defined as the end closest to the third pivot point, and the rear of the side arm being defined as the end opposite from the front; (e) a stopping means, the stopping means having a first side facing towards the rear of the side arm, such that when the side arm moves laterally relative to the fourth pivot point, the rear of the side arm can contact the first side of the stopping means; wherein the side arm and the upper arm are not substantially parallel to each other, and further wherein the first and fourth pivot points are closer together than the second and third pivot points.

Claim 8

An improved auxiliary shelf mechanism for vertically and horizontally positioning an auxiliary shelf, including a means for attaching the auxiliary shelf to a desk so that the auxiliary shelf may be movably positioned relative to the desk, wherein the improvement comprises: an articulating arm mechanism comprising: (a) a mounting bracket, the mounting bracket having a front end and a back end; (b) an upper arm having a rear end and a front end, the upper arm being pivotally connected to the mounting bracket at a first pivot point, the rear of the upper arm being defined as the end of the upper arm closest to the mounting bracket, the front end being defined as the end opposite the rear end; (c) a shelf bracket pivotally connected to the upper arm at a second pivot point; (d) a side arm having a front end and a rear end, the side arm being pivotally connected to the shelf bracket at a third pivot point; the side arm being further attached to the mounting bracket at a fourth pivot point; the side arm having within it a first opening such that the side arm can be pivoted relative to the mounting bracket about the fourth pivot point and can be reciprocatingly moved relative to the fourth pivot point; the front of the side arm being defined as the end closest to the third pivot point, and the rear of the side arm being defined as the end opposite from the front; (e) a stopping means, the stopping means having a first side facing towards the rear of the side arm, such that when the side arm moves laterally relative to the fourth pivot point, the rear of the side arm can contact the first side of the stopping means; wherein the side arm and the upper arm are not substantially parallel to each other, and further wherein the first and fourth pivot points are closer together than the second and third pivot points.

Claim 9

An improved auxiliary shelf mechanism for vertically and horizontally positioning an auxiliary shelf, including a means for attaching the auxiliary shelf to a desk so that the auxiliary shelf may be movably positioned relative to the desk, wherein the improvement comprises: an articulating arm mechanism comprising: (a) a mounting bracket, the mounting bracket having a front end and a back end; (b) an upper arm having a rear end and a front end, the upper arm being pivotally connected to the mounting bracket at a first pivot point, the rear of the upper arm being defined as the end of the upper arm closest to the mounting bracket, the front end being defined as the end opposite the rear end; (c) a shelf bracket pivotally connected to the upper arm at a second pivot point; (d) a side arm having a front end and a rear end, the side arm being pivotally connected to the shelf bracket at a third pivot point; the side arm being further attached to the mounting bracket at a fourth pivot point; the side arm having within it a first opening such that the side arm can be pivoted relative to the mounting bracket about the fourth pivot point and can be reciprocatingly moved relative to the fourth pivot point; the front of the side arm being defined as the end closest to the third pivot point, and the rear of the side arm being defined as the end opposite from the front; (e) a stopping means, the stopping means having a first side facing towards the rear of the side arm, such that when the side arm moves laterally relative to the fourth pivot point, the rear of the side arm can contact the first side of the stopping means; wherein the side arm and the upper arm are not substantially parallel to each other, and further wherein the first and fourth pivot points are closer together than the second and third pivot points.

Claim 10

An improved auxiliary shelf mechanism for vertically and horizontally positioning an auxiliary shelf, including a means for attaching the auxiliary shelf to a desk so that the auxiliary shelf may be movably positioned relative to the desk, wherein the improvement comprises: an articulating arm mechanism comprising: (a) a mounting bracket, the mounting bracket having a front end and a back end; (b) an upper arm having a rear end and a front end, the upper arm being pivotally connected to the mounting bracket at a first pivot point, the rear of the upper arm being defined as the end of the upper arm closest to the mounting bracket, the front end being defined as the end opposite the rear end; (c) a shelf bracket pivotally connected to the upper arm at a second pivot point; (d) a side arm having a front end and a rear end, the side arm being pivotally connected to the shelf bracket at a third pivot point; the side arm being further attached to the mounting bracket at a fourth pivot point; the side arm having within it a first opening such that the side arm can be pivoted relative to the mounting bracket about the fourth pivot point and can be reciprocatingly moved relative to the fourth pivot point; the front of the side arm being defined as the end closest to the third pivot point, and the rear of the side arm being defined as the end opposite from the front; (e) a stopping means, the stopping means having a first side facing towards the rear of the side arm, such that when the side arm moves laterally relative to the fourth pivot point, the rear of the side arm can contact the first side of the stopping means; wherein the side arm and the upper arm are not substantially parallel to each other, and wherein the articulating arm mechanism further comprises a lower arm, the lower arm being pivotally attached to the upper arm at a fifth pivot point, the fifth pivot point being disposed between the first and second pivot points, the lower arm being further attached to the mounting bracket at the fourth pivot point, the lower arm further having within it a second opening, such that the lower arm can pivot about the fourth pivot point and can be reciprocatingly moved relative to the fourth pivot point.

Claim 11

An improved auxiliary shelf mechanism for vertically and horizontally positioning an auxiliary shelf, including a means for attaching the auxiliary shelf to a desk so that the auxiliary shelf may be movably positioned relative to the desk, wherein the improvement comprises: an articulating arm mechanism comprising: (a) a mounting bracket, the mounting bracket having a front end and a back end; (b) an upper arm having a rear end and a front end, the upper arm being pivotally connected to the mounting bracket at a first pivot point, the rear of the upper arm being defined as the end of the upper arm closest to the mounting bracket, the front end being defined as the end opposite the rear end; (c) a shelf bracket pivotally connected to the upper arm at a second pivot point; (d) a side arm having a front end and a rear end, the side arm being pivotally connected to the shelf bracket at a third pivot point; the side arm being further attached to the mounting bracket at a fourth pivot point; the side arm having within it a first opening such that the side arm can be pivoted relative to the mounting bracket about the fourth pivot point and can be reciprocatingly moved relative to the fourth pivot point; the front of the side arm being defined as the end closest to the third pivot point, and the rear of the side arm being defined as the end opposite from the front; (e) a stopping means, the stopping means having a first side facing towards the rear of the side arm, such that when the side arm moves laterally relative to the fourth pivot point, the rear of the side arm can contact the first side of the stopping means; wherein the side arm and the upper arm are not substantially parallel to each other, and wherein the articulating arm mechanism further comprises a lower arm, the lower arm being pivotally attached to the upper arm at a fifth pivot point, the fifth pivot point being disposed between the first and second pivot points, the lower arm being further attached to the mounting bracket at the fourth pivot point, the lower arm further having within it a second opening, such that the lower arm can pivot about the fourth pivot point and can be reciprocatingly moved relative to the fourth pivot point.

Claim 12

An articulating arm mechanism for connecting a shelf to a desk comprising: (a) a mounting bracket, the mounting bracket having a front end and a back end; (b) an upper arm having a rear end and a front end, the upper arm being pivotally connected to the mounting bracket at a first pivot point, the rear of the upper arm being defined as the end of the upper arm closest to the mounting bracket, the front end being defined as the end opposite the rear end; (c) a shelf bracket pivotally connected to the upper arm at a second pivot point; (d) a side arm having a front end and a rear end, the side arm being pivotally connected to the shelf bracket at a third pivot point; the side arm being further attached to the mounting bracket at a fourth pivot point; the side arm having within it a first opening such that the side arm can be pivoted relative to the mounting bracket about the fourth pivot point and can be reciprocatingly moved relative to the fourth pivot point; the front of the side arm being defined as the end closest to the third pivot point, and the rear of the side arm being defined as the end opposite from the front; (e) a stopping means, the stopping means having a first side facing towards the rear of the side arm, such that when the side arm moves laterally relative to the fourth pivot point, the rear of the side arm can contact the first side of the stopping means; wherein the side arm and the upper arm are not substantially parallel to each other; and further wherein the first and fourth pivot points are closer together than the second and third pivot points.

Claim 13

An articulating arm mechanism for connecting a shelf to a desk comprising: (a) a mounting bracket, the mounting bracket having a front end and a back end; (b) an upper arm having a rear end and a front end, the upper arm being pivotally connected to the mounting bracket at a first pivot point, the rear of the upper arm being defined as the end of the upper arm closest to the mounting bracket, the front end being defined as the end opposite the rear end; (c) a shelf bracket pivotally connected to the upper arm at a second pivot point; (d) a side arm having a front end and a rear end, the side arm being pivotally connected to the shelf bracket at a third pivot point; the side arm being further attached to the mounting bracket at a fourth pivot point; the side arm having within it a first opening such that the side arm can be pivoted relative to the mounting bracket about the fourth pivot point and can be reciprocatingly moved relative to the fourth pivot point; the front of the side arm being defined as the end closest to the third pivot point, and the rear of the side arm being defined as the end opposite from the front; (e) a stopping means, the stopping means having a first side facing towards the rear of the side arm, such that when the side arm moves laterally relative to the fourth pivot point, the rear of the side arm can contact the first side of the stopping means; wherein the side arm and the upper arm are not substantially parallel to each other; and further wherein the first and fourth pivot points are closer together than the second and third pivot points.

Claim 14

An articulating arm mechanism for connecting a shelf to a desk comprising: (a) a mounting bracket, the mounting bracket having a front end and a back end; (b) an upper arm having a rear end and a front end, the upper arm being pivotally connected to the mounting bracket at a first pivot point, the rear of the upper arm being defined as the end of the upper arm closest to the mounting bracket, the front end being defined as the end opposite the rear end; (c) a shelf bracket pivotally connected to the upper arm at a second pivot point; (d) a side arm having a front end and a rear end, the side arm being pivotally connected to the shelf bracket at a third pivot point; the side arm being further attached to the mounting bracket at a fourth pivot point; the side arm having within it a first opening such that the side arm can be pivoted relative to the mounting bracket about the fourth pivot point and can be reciprocatingly moved relative to the fourth pivot point; the front of the side arm being defined as the end closest to the third pivot point, and the rear of the side arm being defined as the end opposite from the front; (e) a stopping means, the stopping means having a first side facing towards the rear of the side arm, such that when the side arm moves laterally relative to the fourth pivot point, the rear of the side arm can contact the first side of the stopping means; wherein the side arm and the upper arm are not substantially parallel to each other; and further wherein the second and third pivot points are closer together than the first and fourth pivot points.

Claim 15

An articulating arm mechanism for connecting a shelf to a desk comprising: (a) a mounting bracket, the mounting bracket having a front end and a back end; (b) an upper arm having a rear end and a front end, the upper arm being pivotally connected to the mounting bracket at a first pivot point, the rear of the upper arm being defined as the end of the upper arm closest to the mounting bracket, the front end being defined as the end opposite the rear end; (c) a shelf bracket pivotally connected to the upper arm at a second pivot point; (d) a side arm having a front end and a rear end, the side arm being pivotally connected to the shelf bracket at a third pivot point; the side arm being further attached to the mounting bracket at a fourth pivot point; the side arm having within it a first opening such that the side arm can be pivoted relative to the mounting bracket about the fourth pivot point and can be reciprocatingly moved relative to the fourth pivot point; the front of the side arm being defined as the end closest to the third pivot point, and the rear of the side arm being defined as the end opposite from the front; (e) a stopping means, the stopping means having a first side facing towards the rear of the side arm, such that when the side arm moves laterally relative to the fourth pivot point, the rear of the side arm can contact the first side of the stopping means; wherein the side arm and the upper arm are not substantially parallel to each other; and further wherein the second and third pivot points are closer together than the first and fourth pivot points.

Claim 16

An articulating arm mechanism for connecting a shelf to a desk comprising: (a) a mounting bracket, the mounting bracket having a front end and a back end; (b) an upper arm having a rear end and a front end, the upper arm being pivotally connected to the mounting bracket at a first pivot point, the rear of the upper arm being defined as the end of the upper arm closest to the mounting bracket, the front end being defined as the end opposite the rear end; (c) a shelf bracket pivotally connected to the upper arm at a second pivot point; (d) a side arm having a front end and a rear end, the side arm being pivotally connected to the shelf bracket at a third pivot point; the side arm being further attached to the mounting bracket at a fourth pivot point; the side arm having within it a first opening such that the side arm can be pivoted relative to the mounting bracket about the fourth pivot point and can be reciprocatingly moved relative to the fourth pivot point; the front of the side arm being defined as the end closest to the third pivot point, and the rear of the side arm being defined as the end opposite from the front; (e) a stopping means, the stopping means having a first side facing towards the rear of the side arm, such that when the side arm moves laterally relative to the fourth pivot point, the rear of the side arm can contact the first side of the stopping means; wherein the side arm and the upper arm are not substantially parallel to each other, and wherein the articulating arm mechanism further comprises a lower arm, the lower arm being pivotally attached to the upper arm at a fifth pivot point, the fifth pivot point being disposed between the first and second pivot points, the lower arm being further attached to the mounting bracket at the fourth pivot point, the lower arm further having within it a second opening, such that the lower arm can pivot about the fourth pivot point and can be reciprocatingly moved relative to the fourth pivot point.

Claim 17

An articulating arm mechanism for connecting a shelf to a desk comprising: (a) a mounting bracket, the mounting bracket having a front end and a back end; (b) an upper arm having a rear end and a front end, the upper arm being pivotally connected to the mounting bracket at a first pivot point, the rear of the upper arm being defined as the end of the upper arm closest to the mounting bracket, the front end being defined as the end opposite the rear end; (c) a shelf bracket pivotally connected to the upper arm at a second pivot point; (d) a side arm having a front end and a rear end, the side arm being pivotally connected to the shelf bracket at a third pivot point; the side arm being further attached to the mounting bracket at a fourth pivot point; the side arm having within it a first opening such that the side arm can be pivoted relative to the mounting bracket about the fourth pivot point and can be reciprocatingly moved relative to the fourth pivot point; the front of the side arm being defined as the end closest to the third pivot point, and the rear of the side arm being defined as the end opposite from the front; (e) a stopping means, the stopping means having a first side facing towards the rear of the side arm, such that when the side arm moves laterally relative to the fourth pivot point, the rear of the side arm can contact the first side of the stopping means; wherein the side arm and the upper arm are not substantially parallel to each other, and wherein the articulating arm mechanism further comprises a lower arm, the lower arm being pivotally attached to the upper arm at a fifth pivot point, the fifth pivot point being disposed between the first and second pivot points, the lower arm being further attached to the mounting bracket at the fourth pivot point, the lower arm further having within it a second opening, such that the lower arm can pivot about the fourth pivot point and can be reciprocatingly moved relative to the fourth pivot point.

Claim 18

An articulating arm mechanism for connecting a shelf to a desk comprising: (a) a mounting bracket, the mounting bracket having a front end and a back end; (b) an upper arm having a rear end and a front end, the upper arm being pivotally connected to the mounting bracket at a first pivot point, the rear of the upper arm being defined as the end of the upper arm closest to the mounting bracket, the front end being defined as the end opposite the rear end; (c) a shelf bracket pivotally connected to the upper arm at a second pivot point; (d) a side arm having a front end and a rear end, the side arm being pivotally connected to the shelf bracket at a third pivot point; the side arm being further attached to the mounting bracket at a fourth pivot point; the side arm having within it a first opening such that the side arm can be pivoted relative to the mounting bracket about the fourth pivot point and can be reciprocatingly moved relative to the fourth pivot point; the front of the side arm being defined as the end closest to the third pivot point, and the rear of the side arm being defined as the end opposite from the front; (e) a stopping means, the stopping means having a first side facing towards the rear of the side arm, such that when the side arm moves laterally relative to the fourth pivot point, the rear of the side arm can contact the first side of the stopping means; wherein the stopping means is movable between a first position and a second position, the first position being closer to the front end of the mounting bracket than the back position, and the second position being closer to the back end of the mounting bracket than the first position.

Claim 19

An articulating arm mechanism for connecting a shelf to a desk comprising: (a) a mounting bracket, the mounting bracket having a front end and a back end; (b) an upper arm having a rear end and a front end, the upper arm being pivotally connected to the mounting bracket at a first pivot point, the rear of the upper arm being defined as the end of the upper arm closest to the mounting bracket, the front end being defined as the end opposite the rear end; (c) a shelf bracket pivotally connected to the upper arm at a second pivot point; (d) a side arm having a front end and a rear end, the side arm being pivotally connected to the shelf bracket at a third pivot point; the side arm being further attached to the mounting bracket at a fourth pivot point; the side arm having within it a first opening such that the side arm can be pivoted relative to the mounting bracket about the fourth pivot point and can be reciprocatingly moved relative to the fourth pivot point; the front of the side arm being defined as the end closest to the third pivot point, and the rear of the side arm being defined as the end opposite from the front; (e) a stopping means, the stopping means having a first side facing towards the rear of the side arm, such that when the side arm moves laterally relative to the fourth pivot point, the rear of the side arm can contact the first side of the stopping means; wherein the stopping means is movable between a first position and a second position, the first position being closer to the front end of the mounting bracket than the back position, and the second position being closer to the back end of the mounting bracket than the first position.

Claim 20

The articulating arm mechanism of claim 11, wherein the position of the stopping means can be fixed at either the first position, or the second position, or at any position between the first and second positions.

Claim 21

The articulating arm mechanism of claim 12, wherein the position of the stopping means is adjusted by means of a threaded screw mechanism.

Claim 22

The articulating arm mechanism of claim 1, wherein the position of the stopping means is adjusted by means of a lever mechanism, the lever mechanism comprising an adjustment lever, a setting bracket, and a sliding bracket.