Vertically adjustable furniture item
AssigneeStabilus GmbH
InventorMatthias Etzkorn
Life of this patent
Estimating the term…
Abstract
A vertically adjustable item of furniture with a vertical pipe, a supporting base arranged at a first end of the vertical pipe, a guide bush fastened to a second end of the vertical pipe opposite to the supporting base, a cylinder which is arranged coaxially in the vertical pipe a piston which divides the cylinder into a first work chamber and a second work chamber, a piston rod fastened by its first end to the piston extends through the second work chamber and a connection between the first work chamber and the second work chamber which can be blocked by a valve actuatable by an actuating device. The valve is controllable electromagnetically. The furniture item comprises a sensor or switch which generates a signal causing the valve to close when the piston reaches a position in the cylinder near the valve.
Claims20
A vertically adjustable item of furniture comprising:
- a supporting base;
- a vertical pipe having a first end arranged at the supporting base;
- a guide bush fastened to a second end of the vertical pipe opposite the supporting base;
- a cylinder coaxially arranged in the vertical pipe, the cylinder being filled with a compressed gas, wherein the cylinder is displaceably guided in the vertical pipe and projects out of the vertical pipe;
- a piston arranged in a guide pipe, the piston dividing the cylinder into a first work chamber and a second work chamber;
- a piston rod fastened at a first end to the piston, the piston rod configured to extend through the second work chamber and is sealingly guided outward by a sealing and guiding device, a second end of the piston rod arranged with its second end at the first end of the vertical pipe;
- an electromagnetically controllable valve arranged in a valve chamber and configured to block a connection between the first work chamber and the second work chamber, the valve configured to be actuated by an actuating device;
- an object to which force can be applied arranged at the end of the cylinder projecting out of the vertical pipe;
- and
- at least one of a sensor and a switch configured to generate a signal that causes the electromagnetically controllable valve to close when the piston reaches a predetermined position in the cylinder.
Dependencies are inferred from the claim text.