Electrically adjustable office chair
AssigneeStabilus GmbH
InventorsUlrich Probst, Lars Löhken, Raphael Piroth, Markus Müller
Life of this patent
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Abstract
An office chair including a base, a seat, a chair column that extends in the vertical direction between the base and the seat, and a backrest, further comprising an electric drive unit that comprises an electric motor and a change gear, the change gear being designed to input the rotational force of the electric motor into a first adjustment device for adjusting a seat height of the seat and converting said force in a second adjustment device for adjusting a tilt of the seat or the backrest.
Claims16
An office chair comprising a base, a seat, a chair column that extends in a vertical direction between the base and the seat, a backrest and an electric drive unit including an electric motor and a change gear, the change gear being designed to input the rotational force of the electric motor into a first adjustment device for adjusting a seat height of the seat and converting said force in a second adjustment device for adjusting a tilt of the seat or the backrest, wherein the change gear comprises a drive input that is connected to the electric motor, and at least two rotary drive outputs, a first rotary drive output driving the first adjustment device and a second rotary drive output driving the second adjustment device.
An electric drive unit for use in an office chair comprising:
- an electric motor, and
- a change gear having a drive input that is connected to the electric motor, and having at least two rotary drive outputs,
- wherein
- the change gear comprises a transmission shaft that can be moved between at least two transmission positions, the transmission shaft coupling the drive input to one of the two rotary drive outputs in a first transmission position, and coupling the drive input to the other of the two rotary drive outputs in a second transmission position.
Dependencies are inferred from the claim text.