ADJUSTABLE GAS-PRESSURE SPRING, HEIGHT-ADJUSTABLE PILLAR HAVING A GAS-PRESSURE SPRING AND FURNITURE PIECE HAVING A HEIGHT-ADJUSTABLE PILLAR

• US 20160088930A1
• Filed: 05/13/2013
• Published: 03/31/2016
• Est. Priority Date: 05/13/2013
• Status: Active Grant

• Current Assignee: Kessebohmer Produktions GmbH & Co. KG
• Original Assignee: Kessebohmer Produktions GmbH & Co. KG
• Inventors: HANSEN, Melf
• Granted Patent: US 9,504,315 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: A47B 9/10 with vertically-acting fluid cylinder
• CPC Class Codes: F16F 9/0245 Means for adjusting the length of, or for locking, the spring or dampers

Abstract

An adjustable gas pressure spring (9) comprises a gas pressure spring portion (91, 92), a gas reservoir (96) and a connecting means (94) fluidically connecting the gas reservoir (96) and the gas pressure spring portion (91, 92) with each other. The spring force of the gas pressure spring portion. (91, 92) is adjustable by means of pressure equalization with the gas reservoir (96) and/or the ambient pressure. Such a gas spring may he provided in an adjustable column (10, 104, 105), in particular an adjustable table column. Such a table column may in turn be provided in a height-adjustable table (1, 101).

Claims

1. A height-adjustable table comprising:

a first table column for performing a first adjustment of a height of the table;

the first table column comprising

a lower column element and an upper column element, the lower column element and the upper column element being moveable with respect to each other;

an adjustable gas pressure spring disposed in the first table column, the adjustable gas pressure spring comprising a gas spring portion and a gas reservoir;

a connector for placing the gas spring portion and the gas reservoir in fluid connection with each other, the gas spring portion having a spring force, the spring force being adjustable by pressure equalization with the gas reservoir or an ambient pressure;

a second table column for performing a second adjustment of the height of the table, the second table column lacking a gas pressure spring; and

a synchronizer for synchronizing the first adjustment of the height and the second adjustment of the height.

2. The height-adjustable table of claim 1, further comprising

a weight meter or a weight indicator for measuring or indicating an actual weight load of the table.

3. The height-adjustable table of claim 1, further comprising

a pressure indicator for indicating a pressure in the gas pressure spring or an adjusted weight compensation.

4. The height-adjustable table of claim 1, further comprising

a common display for indicating an actual weight load of the table and for indicating an adjusted weight compensation.

5. The height-adjustable of claim 1, further comprising

a securer for permitting an adjustment of the first table column only if a weight compensation adjustment of the gas pressure spring and a weight load of the table are sufficiently similar.

6. The height-adjustable table of claim 1, further comprising

a table plate;

and

a lock for locking a position of the table plate in a vertical direction.

7. The height-adjustable table of claim 6, wherein the lock locks the synchronizer.

8. The height-adjustable table of claim 6, wherein the lock is coupled to the gas pressure spring.

9. The height-adjustable table of claim 1, wherein the gas reservoir comprises an adjuster for adjusting a pressure in the gas reservoir.

10. The height-adjustable table of claim 9, wherein the spring force is controlled by the adjuster or by connecting to an external gas reservoir.

11. The height-adjustable table of claim 1, wherein the spring force is controlled by connecting to an external gas reservoir, the external gas reservoir being configured as an external pressurized gas cylinder reversibly connectable to the gas spring portion of the gas pressure spring via a further connector.

12. The height-adjustable table of claim 9, wherein said adjuster comprises a piston rod insertable into the gas reservoir.

13. The height-adjustable table of claim 9, wherein the adjuster is adjustable with a crank or a screwdriver or a battery-powered screwdriver or a screwing or engaging means.

33. The height-adjustable table of claim 2, wherein the weight meter or the weight indicator is disposed in the first table column.

34. The height-adjustable table of claim 3, wherein the pressure indicator is disposed in the first table column or the gas pressure spring.

35. The height-adjustable table of claim 4, wherein the common display is disposed in the first table column or the gas pressure spring.

36. The height-adjustable table of claim 7, wherein the synchronizer is a belt synchronizer.

14-32. -32. (canceled)