Adjustable desk platform

• US 9,113,703 B2
• Filed: 08/29/2013
• Issued: 08/25/2015
• Est. Priority Date: 05/24/2012
• Status: Active Grant

• Current Assignee: Varidesk LLC
• Original Assignee: Varidesk LLC
• Inventors: Flaherty, Daniel
• Primary Examiner(s): Chen, Jose V
• Application Number:
  US14/013,285
• Publication Number:
  US 20130340655A1
• Time in Patent Office: 726 Days
• Field of Search: 108/17, 108/96, 108/95, 108/138, 108/65, 108/69, 108/43, 108/50.01, 108/50.02, 108/92, 108/48
• US Class Current: 1/1
• CPC Class Codes: A47B 2021/0335 mounted under the worksurface
• CPC Class Codes: A47B 21/00 Tables or desks for office equipment, e.g. typewriters, keyboards
• CPC Class Codes: A47B 21/02 with vertical adjustable parts
• CPC Class Codes: A47B 21/03 with substantially horizontally extensible or adjustable parts other than drawers, e.g. leaves
• CPC Class Codes: A47B 21/0314 Platforms for supporting office equipment
• CPC Class Codes: A47B 21/04 characterised by means for holding or fastening typewriters or computer equipment
• CPC Class Codes: A47B 2200/0041 Height adjustable table top with parallel link arms
• 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 9/16 with means for, or adapted for, inclining the legs of the table for varying the height of the top, e.g. with adjustable cross legs
• CPC Class Codes: A47B 9/18 with additional top or additional legs for varying the height of the top

Abstract

Adjustable desk platform includes an upper platform defining a first substantially planar work surface; a lower platform defining a second substantially planar work surface; at least one set of pivot arms connecting the lower platform and the upper platform, the set of pivot arms including a primary pivot arm and a secondary pivot arm. The set of pivot arms is adapted to move the upper platform substantially in parallel with the lower platform between a fully raised position and a fully lowered position. A locking mechanism includes a plurality of perforations located in the primary pivot arm or the secondary pivot arm, a locking set fixed with respect to the upper platform or lower platform, the locking set including at least one anchor adapted to selectively engage at least one of the plurality of perforations, and a handle connected to the anchor by a linkage.

Claims

1. An adjustable desk platform comprising:

an upper platform defining a first substantially planar work surface, and a lower surface opposite the work surface;

first and second lower mounting brackets extending below the upper platform, the first and second lower mounting brackets laterally spaced apart from one another;

a base located beneath the upper platform, the base defining a bottom surface without legs that is adapted to sit on an existing desk;

first and second upper mounting brackets extending upward from the base, the first and second upper mounting brackets laterally spaced apart from one another;

first and second sets of arms connecting the first and second lower mounting brackets to the first and second upper mounting brackets, respectively, the first and second sets of arms adapted to move the upper platform substantially in parallel with the base between a fully raised position and a fully lowered position; and

a first locking mechanism associated with the first set of arms, the first locking mechanism comprising;

a first anchor coupled to the first lower mounting bracket, the first anchor adapted to releasably lock the first set of arms in position with respect to the first lower mounting bracket, and

a first handle connected to the lower surface of the upper platform, the first handle user-operable to unlock the first set of arms to permit movement of the upper platform between the fully raised and the fully lowered positions.

2. The adjustable desk platform of claim 1, wherein the first anchor is resiliently biased toward a position that locks the first set of arms into position with respect to the first lower mounting bracket.

3. The adjustable desk platform of claim 1, further comprising a cover extending over at least the first locking mechanism.

4. The adjustable desk platform of claim 1, wherein the first and second set of arms are laterally spaced apart from one another, the adjustable desk further comprising:

a reinforcement member extending between the first set of arms and the second set of arms.

5. The adjustable desk platform of claim 1, wherein the lower platform defines a trailing edge and the upper platform defines a leading edge that moves laterally away from the trailing edge as the upper platform moves from the fully lowered position toward the fully raised position, the adjustable desk platform further comprising a counterweight located on the lower platform adjacent the trailing edge.

6. The adjustable desk platform of claim 1, further comprising a keyboard tray attached to the upper platform.

7. The adjustable desk platform of claim 1, further comprising:

a first spring fixed in position with respect to the first lower mounting bracket, wherein movement of the upper platform toward the fully lowered position extends the first spring.

8. The adjustable desk platform of claim 7, further comprising:

a second spring fixed in position with respect to the second lower mounting bracket, wherein movement of the upper platform toward the fully lowered position extends the second spring.

9. The adjustable desk platform of claim 1, further comprising:

a first linkage extending between the first handle and the first anchor.

10. The adjustable desk platform of claim 1, further comprising:

a keyboard tray suspended below the upper platform, the keyboard tray defining first and second lateral ends;

a first bracket extending between the first lateral end of the keyboard tray and the lower surface of the upper platform; and

a second bracket extending between the second lateral end of the keyboard tray and the lower surface of the upper platform.

11. The adjustable desk platform of claim 1, further comprising:

a second locking mechanism associated with the second set of arms, the second locking mechanism adapted to releasably lock the second set of arms in position with respect to the second lower mounting bracket.

12. An adjustable desk platform comprising:

an upper platform defining a first substantially planar work surface;

a lower platform;

at least one set of arms connecting the lower platform and the upper platform, the set of arms comprising a primary arm and a secondary arm, wherein the set of arms is adapted to move the upper platform substantially in parallel with the lower platform between a fully raised position and a fully lowered position; and

a locking mechanism associated with the set of arms, the locking mechanism comprising;

a plurality of perforations located in the primary arm or the secondary arm,

a locking set fixed with respect to the upper platform or the lower platform, the locking set including at least one anchor adapted to selectively engage at least one of the plurality of perforations, and

a handle connected to the anchor by a linkage, the handle adapted to selectively move the anchor into engagement with at least one of the plurality of perforations;

a boss located on the primary arm or the secondary arm, the boss adapted to move on the primary arm or the secondary arm along an arcuate path as the upper platform moves between the fully raised position and the fully lowered position; and

a first spring fixed in position with respect to the upper platform or the lower platform, wherein movement of the upper platform toward the fully lowered position extends the first spring.

13. The adjustable desk platform of claim 12, wherein the first spring is a compression spring.

14. The adjustable desk platform of claim 12, further comprising a second spring fixed in position with respect to the upper platform or the lower platform, wherein movement of the upper platform toward the fully lowered position causes the boss to bend the second spring.

15. The adjustable desk platform of claim 14, wherein the second spring is a cantilever spring.

16. The adjustable desk platform of claim 14, further comprising:

a lower mounting bracket located on the upper platform; and

an upper mounting bracket located on the lower platform, wherein the primary and secondary arms interconnect the upper mounting bracket and the lower mounting bracket;

wherein;

the first spring extends between the boss and the upper mounting bracket; and

the second spring is secured to the upper mounting bracket.

17. The adjustable desk platform of claim 16, further comprising a pivot point located adjacent to the second spring, wherein the boss is adapted to bend the second spring about the pivot point.

18. The adjustable desk platform of claim 16, further comprising a cover extending over at least a portion of the first spring and the second spring.

19. The adjustable desk platform of claim 12, further comprising legs extending below the lower platform.