Height adjustable table

• US 10,602,840 B2
• Filed: 10/06/2016
• Issued: 03/31/2020
• Est. Priority Date: 10/08/2015
• Status: Active Grant

• Current Assignee: Ergotron Incorporated (Melrose Industries Plc)
• Original Assignee: Ergotron Incorporated (Melrose Industries Plc)
• Inventors: Ergun, Mustafa A., Theis, John William, Mullen, Michael John
• Primary Examiner(s): Rohrhoff, Daniel J
• Application Number:
  US15/763,803
• Publication Number:
  US 20180279772A1
• Time in Patent Office: 1,272 Days
• CPC Class Codes: A47B 13/088 Sectional table tops
• CPC Class Codes: A47B 21/02 with vertical adjustable parts
• CPC Class Codes: A47B 2200/0046 Desks with double worktop of which one at least is separately height adjustable
• CPC Class Codes: A47B 2200/0052 with two telescopic parts
• CPC Class Codes: A47B 9/00 Tables with tops of variable height lecterns with variable height A47B19/06; school forms or desks with variable height A47B39/02, A47B41/02; seats with variable height A47C3/20
• CPC Class Codes: A47B 9/02 with balancing device, e.g. by springs, by weight
• CPC Class Codes: A47B 9/20 Telescopic guides

Abstract

A height adjustable table can include a plurality of legs, a lower portion, a worksurface, a height adjustable surface, and a linkage. The worksurface can be supported by the plurality of legs and can include a fixed surface and a height adjustable surface. The fixed surface can be secured to at least one of the lower portion and the plurality of legs, and the fixed surface can define a recessed portion. The height adjustable surface can be movable between a raised position and a lowered position so that the height-adjustable surface retracts into the recessed portion when in the lowered position so that the height adjustable surface is coplanar with the fixed surface. The linkage can be configured to move the height adjustable surface between the lowered position and the raised position so that the height adjustable surface remains parallel to the fixed surface.

Claims

1. A height adjustable table comprising:

a worksurface movable between a raised position and a lowered position;

a base;

a telescoping riser comprising;

a stationary member; and

a movable member coupled to the worksurface, nestable within the stationary member, and extendable from and retractable into the stationary member; and

a linkage configured to move the worksurface between the lowered position and the raised position so that the worksurface remains parallel to a support surface, the linkage comprising;

an upper end rotatingly coupled to the worksurface;

a lower end rotatingly coupled to at least one of the base and the stationary member;

a glider coupled to the worksurface and translatable between a first position and a second position such that the worksurface is in the raised position when the glider is in the first position and is in the lowered position when the glider is in the second position;

a first link rotatably coupled to the glider and to at least one of a surface of the base and the stationary member; and

a transverse link rotatably coupled to the first link and to the worksurface.

2. The height adjustable table of claim 1,

wherein the stationary member is centered about the base and the movable member is centered about the worksurface.

3. The height adjustable table of claim 1, wherein the movable member is coupled to the worksurface near a periphery of the worksurface so that the worksurface cantilevers from the movable member.

4. The height adjustable table of claim 1, wherein the glider further comprises:

a glide support coupled to the worksurface; and

a gliding bar rotatably coupled to the first link and slidable engaging the glide support.

5. The height adjustable table of claim 1, wherein the moveable member has a rectangular cross-section.

6. The height adjustable table of claim 1, wherein the moveable member is hollow.

7. The height adjustable table of claim 1, further comprising:

the base, wherein the stationary member is coupled to the base.

8. The height adjustable table of claim 1, wherein the telescoping riser is a first telescoping riser and the linkage is a first linkage, the height adjustable table further comprising:

a second telescoping riser and a second linkage.

9. A height adjustable table comprising:

a worksurface movable between a raised position and a lowered position;

a base;

a pair of telescoping risers, each riser comprising;

a stationary member; and

a movable member coupled to the worksurface, nestable within the stationary member, and extendable from and retractable into the stationary member; and

a pair of linkages configured to move the worksurface between the lowered position and the raised position so that the worksurface remains parallel to a support surface, each linkage comprising;

an upper end rotatingly coupled to the worksurface;

a lower end rotatingly coupled to the stationary member;

a glider coupled to the worksurface and translatable between a first position and a second position such that the worksurface is in the raised position when the glider is in the first position and is in the lowered position when the glider is in the second position;

a first link rotatably coupled to the glider and to at least one of a surface of the base and the stationary member; and

a transverse link rotatably coupled to the first link and to the worksurface.

10. The height adjustable table of claim 9, further comprising a shelf.

11. The height adjustable table of claim 10, wherein the shelf is coupled to one of the stationary members.

12. The height adjustable table of claim 11, wherein the shelf is cantilevered from adjacent a top end of the stationary member.

13. The height adjustable table of claim 9, wherein each riser of the pair of telescoping risers is configured as a table leg to support the worksurface.

14. The height adjustable table of claim 9, wherein each moveable member has a rectangular cross-section.

15. The height adjustable table of claim 14, wherein each moveable member is hollow.