Back to results
US 9,591,919 B2Granted
Height adjustable desk system and method
AssigneeErgotron, Inc.
InventorsMustafa A. Ergun, Robert William Fluhrer, Scott Trish, Jeffrey Randall Mensing
Life of this patent
Estimating the term…
Abstract
A height adjustable desk can include a work surface; and at least one leg assembly connected to the work surface. The at least one leg assembly can include: a first member; and a second member moveable relative to the first member along a longitudinal axis; and a counterbalance mechanism connected to the desk and configured to counteract a force exerted on the work surface. The counterbalance mechanism can include: a wheel; a gas spring having a cylinder and a moveable piston; a wheel moveably connected to the gas spring; and the tension member is connected to the leg assembly.
Claims22
A height adjustable desk comprising:
- a work surface;
- and
- at least one leg assembly configured to attach to the work surface, the at least one leg assembly including a lift mechanism, the lift mechanism including:
- a first member;
- a second member moveable relative to the first member along a longitudinal axis;
- a third member moveable relative to the second member along the longitudinal axis;
- a synchronization assembly configured to balance movement between the first and second members with movement between the second and third members, wherein the synchronization assembly includes a first pulley wheel moveably coupled to the second member and located proximate a first end of the second member and a second pulley wheel moveably coupled to the second member and located proximate the second end of the second member;
- an energy storage member positioned in one of the first, second, and third members, the energy storage member having a first end coupled to one of the first, second, and third members and a second end connected to a first end of a tension member;
- a counterbalance mechanism configured to counteract a force exerted on the lift mechanism, the counterbalance mechanism positioned in one of the first, second, and third members and including:
- a pulley assembly including:
- the tension member;
- and
- at least one pulley wheel, wherein the tension member is routed around the at least one pulley wheel, and wherein a second end of the tension member is attached to the second member.
10 more elements
A height adjustable desk comprising:
- a work surface;
- and
- at least one leg assembly configured to attach to the work surface, the at least one leg assembly including a lift mechanism, the lift mechanism including:
- an upper member;
- a middle member moveable relative to the upper member along a longitudinal axis;
- a lower member moveable relative to the middle member along the longitudinal axis;
- a synchronization assembly configured to balance movement between the upper and middle members with movement between the middle and lower members, wherein the synchronization assembly includes a first pulley wheel moveably coupled to the middle member and located proximate a first end of the middle member and a second pulley wheel moveably coupled to the middle member and located proximate the second end of the middle member;
- an energy storage member positioned in the lower member, the energy storage member having a first end coupled to a first end of the lower member and a second end connected to a first end of a tension member;
- a counterbalance mechanism configured to counteract a force exerted on the lift mechanism, the counterbalance mechanism positioned in the lower member and including:
- a pulley assembly including:
- the tension member;
- and
- at least one pulley wheel, wherein the tension member is routed around the at least one pulley wheel, and wherein a second end of the tension member is attached to the middle member.
10 more elements
A height adjustable desk comprising:
- a work surface;
- and
- at least one leg assembly configured to attach to the work surface, the at least one leg assembly including a lift mechanism, the lift mechanism including:
- an upper member;
- a middle member moveable relative to the upper member along a longitudinal axis;
- a lower member moveable relative to the middle member along the longitudinal axis;
- a synchronization assembly configured to balance movement between the upper and middle members with movement between the middle and lower members, wherein the synchronization assembly includes a first pulley wheel moveably coupled to the middle member and located proximate a first end of the middle member and a second pulley wheel moveably coupled to the middle member and located proximate the second end of the middle member;
- an energy storage member positioned in the upper member, the energy storage member having a first end coupled to a first end of the upper member and a second end connected to a first end of a tension member;
- a counterbalance mechanism configured to counteract a force exerted on the lift mechanism, the counterbalance mechanism positioned in the upper member and including:
- a pulley assembly including:
- the tension member;
- and
- at least one pulley wheel, wherein the tension member is routed around the at least one pulley wheel, and wherein a second end of the tension member is attached to the middle member.
10 more elements
Dependencies are inferred from the claim text.