US 12,357,083 B1Granted

Height adjustable desk

OwnerNathaniel Noahinventor

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Abstract

The invention is a variable height desk that easily and efficiently converts from a first, lowered orientation suitable for use while sitting and a second, raised orientation suitable for use while standing. The desk includes a desktop that can be positioned in one or more stopped locations above a base support. In the lowered configuration, a user can sit at the desk with their legs positioned underneath the desktop. In the raised configuration, the user can stand and still have access to the top of the desktop. The desk also includes first and second sets of scissor arms that couple the desktop to the base and enable the desktop to be raised and lowered.

Claims13

Dependent claims

A desk comprising:

a desktop defined by:
a planar and flat top surface;
a bottom surface;
a front and an opposed back;
and
first and second sides;
a base comprising:
a first leg, a second leg, a third leg, and a fourth leg, each leg defined by a top end and an opposed bottom end;
a frame comprising:
a first frame arm extending between the top end of the first leg and the top end of the second leg;
a second frame arm extending between the top end of the third leg and the top end of the fourth leg, wherein the first frame arm is parallel to the second frame arm;
a front frame arm with a first end attached perpendicularly to the first frame arm and a second end attached perpendicularly to the second frame arm;
a back frame arm with a first end attached perpendicularly to the first frame arm and a second end attached perpendicularly to the second frame arm;
a first bumper positioned on the first frame arm and extending upwardly therefrom, positioned adjacent to the first end of the front frame arm;
a second bumper positioned on the first frame arm and extending upwardly therefrom, positioned adjacent to the first end of the back frame arm;
a third bumper positioned on the second frame arm and extending upwardly therefrom, positioned adjacent to the second end of the front frame arm;
a fourth bumper positioned on the second frame arm and extending upwardly therefrom, positioned adjacent to the second end of the back frame arm;
a first lower connection element positioned on an interior face of the front frame arm and a second lower connection element positioned on an interior face of the back frame arm, wherein the first lower connection element faces the second lower connection element;
a first upper connection element positioned on the bottom surface of the tabletop and second upper connection element positioned on the bottom surface of the tabletop, wherein the first upper connection element faces the second upper connection element;
coupled first and second front scissor arms positioned adjacent to the front frame arm, wherein each of the first and second front scissor arms has a lower end and a top end;
coupled first and second rear scissor arms positioned adjacent the back frame arm, wherein each of the first and second rear scissor arms has a lower end and a top end;
wherein the lower end of the second front scissor arm and the lower end of the first rear scissor arm are each pivotally attached to the first frame arm;
wherein the upper end of the first front scissor arm and the upper end of the second rear scissor arm are each pivotally attached to the bottom surface of the tabletop;
wherein the lower end of the first front scissor arm is connected to the first lower connection element and the lower end of the second rear scissor arm is connected to the second lower connection element such that the lower end of the first front scissor arm and the lower end of the second rear scissor arm are configured to move along the first and second lower connection elements, respectively, and the lower end of the second rear scissor arm and the lower end of the first front scissor arm are connected together via a lower bar;
wherein the upper end of the second front scissor arm is connected to the first upper connection element and the upper end of the first rear scissor arm is connected to the second upper connection element such that the upper end of the second front scissor arm and the upper end of the upper end of the first rear scissor arm are configured to move along the first and second upper connection elements, respectively, and the upper end of the second front scissor arm and the upper end of the first rear scissor arm are connected together via an upper bar;
a locking mechanism comprising:
a control lever with a first handle end and an opposed second end housed within a channel of a top plate defined by a pair of opposed spacers;
a first push bar that is not welded, positioned in an opening in the top plate, a second push bar welded into the top plate, and a spring positioned between the first and second push bars;
a hook that passes through an opening on the first push bar, spring, and second push bar, the hook including a hooked end attached to the upper bar;
wherein the locking mechanism transitions from a first locked orientation wherein the plate cannot move along a length of the hook and a second unlocked orientation wherein the second end of the control lever pushes against the first push bar to compress the spring, allowing the plate to move along a length of the hook, allowing the top end of the first rear scissor arm and the top end of the second front scissor arm to move along the upper connection element and also allowing the bottom end of the first front scissor arm and the bottom end of the second rear scissor arm to move along the lower connection element to lower the desktop;
wherein the desk can transition between a first orientation defined by a vertically elevated desktop and a second orientation defined by a lowered desktop, and vice versa.

28 more elements

Dependencies are inferred from the claim text.

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Abstract

A desk comprising:

a desktop defined by:
a planar and flat top surface;
a bottom surface;
a front and an opposed back;
and
first and second sides;
a base comprising:
a first leg, a second leg, a third leg, and a fourth leg, each leg defined by a top end and an opposed bottom end;
a frame comprising:
a first frame arm extending between the top end of the first leg and the top end of the second leg;
a second frame arm extending between the top end of the third leg and the top end of the fourth leg, wherein the first frame arm is parallel to the second frame arm;
a front frame arm with a first end attached perpendicularly to the first frame arm and a second end attached perpendicularly to the second frame arm;
a back frame arm with a first end attached perpendicularly to the first frame arm and a second end attached perpendicularly to the second frame arm;
a first bumper positioned on the first frame arm and extending upwardly therefrom, positioned adjacent to the first end of the front frame arm;
a second bumper positioned on the first frame arm and extending upwardly therefrom, positioned adjacent to the first end of the back frame arm;
a third bumper positioned on the second frame arm and extending upwardly therefrom, positioned adjacent to the second end of the front frame arm;
a fourth bumper positioned on the second frame arm and extending upwardly therefrom, positioned adjacent to the second end of the back frame arm;
a first lower connection element positioned on an interior face of the front frame arm and a second lower connection element positioned on an interior face of the back frame arm, wherein the first lower connection element faces the second lower connection element;
a first upper connection element positioned on the bottom surface of the tabletop and second upper connection element positioned on the bottom surface of the tabletop, wherein the first upper connection element faces the second upper connection element;
coupled first and second front scissor arms positioned adjacent to the front frame arm, wherein each of the first and second front scissor arms has a lower end and a top end;
coupled first and second rear scissor arms positioned adjacent the back frame arm, wherein each of the first and second rear scissor arms has a lower end and a top end;
wherein the lower end of the second front scissor arm and the lower end of the first rear scissor arm are each pivotally attached to the first frame arm;
wherein the upper end of the first front scissor arm and the upper end of the second rear scissor arm are each pivotally attached to the bottom surface of the tabletop;
wherein the lower end of the first front scissor arm is connected to the first lower connection element and the lower end of the second rear scissor arm is connected to the second lower connection element such that the lower end of the first front scissor arm and the lower end of the second rear scissor arm are configured to move along the first and second lower connection elements, respectively, and the lower end of the second rear scissor arm and the lower end of the first front scissor arm are connected together via a lower bar;
wherein the upper end of the second front scissor arm is connected to the first upper connection element and the upper end of the first rear scissor arm is connected to the second upper connection element such that the upper end of the second front scissor arm and the upper end of the upper end of the first rear scissor arm are configured to move along the first and second upper connection elements, respectively, and the upper end of the second front scissor arm and the upper end of the first rear scissor arm are connected together via an upper bar;
a locking mechanism comprising:
a control lever with a first handle end and an opposed second end housed within a channel of a top plate defined by a pair of opposed spacers;
a first push bar that is not welded, positioned in an opening in the top plate, a second push bar welded into the top plate, and a spring positioned between the first and second push bars;
a hook that passes through an opening on the first push bar, spring, and second push bar, the hook including a hooked end attached to the upper bar;
wherein the locking mechanism transitions from a first locked orientation wherein the plate cannot move along a length of the hook and a second unlocked orientation wherein the second end of the control lever pushes against the first push bar to compress the spring, allowing the plate to move along a length of the hook, allowing the top end of the first rear scissor arm and the top end of the second front scissor arm to move along the upper connection element and also allowing the bottom end of the first front scissor arm and the bottom end of the second rear scissor arm to move along the lower connection element to lower the desktop;
wherein the desk can transition between a first orientation defined by a vertically elevated desktop and a second orientation defined by a lowered desktop, and vice versa.

28 more elements