US 2022/0079332 A1 · GAS SPRING SYSTEM FOR A HEIGHT ADJUSTABLE TABLE, HEIGHT ADJUSTABLE TABLE AND METHOD FOR OPERATING THE GAS SPRING SYSTEM

Abstract

A gas spring system (3) for a height adjustable table (1) comprises a gas spring (4) having a gas spring cylinder (6) with a gas compartment (9) provided therein, a gas spring piston (7) arranged therein and a gas spring piston rod (8) joined thereto. The gas spring system (3) further comprises a gas interface (10), connected to the gas compartment (9), which at least inserts gas from outside into the gas spring system (3), a transfer cylinder (12) having a transfer piston (13), a first transfer chamber (14) and a second transfer chamber (15) separated by the transfer piston (13), and a hydraulic pump (16). The gas comportment (9) is connected to the first transfer chamber (14) and the hydraulic pump (16) is connected to the second transfer chamber (15). The hydraulic pump (16) conveys hydraulic oil and the transfer piston (13) is moved in direction towards the first transfer chamber (14) by the hydraulic oil conveyed by the hydraulic pump (16) in order to increase a pressure in the first transfer chamber (14) and in the gas comportment (9).

Claims17

Dependent claims

Gas spring system (3) for a height adjustable table (1) comprising

a gas spring (4) having
a gas spring cylinder (6) with a gas compartment (9) provided therein,
a gas spring piston (7) arranged in the gas compartment (9), and
a gas spring piston rod (8) joined with the gas spring piston (7),
characterized in that
the gas spring system (3) further comprises:
a gas interface (10) connected to the gas compartment (9), wherein the gas interface (10) is at least configured to insert gas from outside of the gas spring system (3) into the gas spring system (3),
a transfer cylinder (12) having an transfer piston (13), a first transfer chamber, (14) and a second transfer chamber (15), wherein the first transfer chamber (14) and the second transfer chamber (15) are separated by the transfer piston (13), and
a hydraulic pump (16),
wherein
the gas compartment (9) of the gas spring (4) is connected to the first transfer chamber (14),
the hydraulic pump (16) is connected to the second transfer chamber (15),
the hydraulic pump (16) is configured to convey hydraulic oil, and
the transfer piston (13) is configured to be moved by the hydraulic oil conveyed by the hydraulic pump (16) in direction towards the first transfer chamber (14) in order to increase a pressure in the first transfer chamber (14) and the gas compartment (9) of the gas spring (4).

11 more elements

Gas spring system (3) comprising

a gas spring (4) having
a gas spring cylinder (6) with a gas compartment (9) provided therein,
a gas spring piston (7) arranged in the gas compartment (9), and
a gas spring piston rod (8) joined with the gas spring piston (7),
characterized in that
the gas spring system (3) further comprises:
a gas interface (10) connected to the gas compartment (9) of the gas spring (4), wherein the gas interface (10) is at least configured to insert gas from outside of the gas spring system (3) into the gas spring system (3),
a reciprocating pump (21) connected to the gas compartment (9) of the gas spring (4) and which is adapted to convey gas towards the gas compartment (9) of the gas spring (4), wherein
the reciprocating pump (21) comprises a drive mechanism (22) configured to function according to the principle of a toggle lever system.

6 more elements

Gas spring system (3) comprising

a gas spring (4) having
a gas spring cylinder (6) with a gas compartment (9) provided therein,
a gas spring piston (7) arranged in the gas compartment (9), and
a gas spring piston rod (8) joined with the gas spring piston (7), wherein the gas spring system (3) further comprises:
a reciprocating pump (21′) connected to the gas compartment (9) of the gas spring (4) and configured to convey gas to the gas compartment (9) of the gas spring (4),
characterized in that
the reciprocating pump (21′) comprises:
a first pump gas compartment (32) connected to the gas compartment (9) of the gas spring (4),
a pump piston (24′),
a second pump gas compartment (33) separated from the first pump gas compartment (32) by the pump piston (24′),
a pump check valve (30′) configured to prevent a flow of the gas from the gas compartment (9) of the gas spring (4) towards the first pump gas compartment (32) and to enable a flow of the gas from the first pump gas compartment (32) towards the gas compartment (9) of the gas spring (4),
a piston check valve (34) configured to be movable with the pump piston (24′) and to prevent a flow of the gas from the first pump gas compartment (32) towards the second pump gas compartment (33) and to enable a flow of the gas from the second pump gas compartment (33) towards the first pump gas compartment (32),
an inlet check valve (35) configured to prevent a flow of the gas out of the second pump gas comportment (33) and to enable a flow of the gas into the second pump gas compartment (33), wherein
the gas spring system (3) further comprises:
a second gas storage (38) connected to the insert check valve (35),
a gas drain valve (37) connected, on the one side, with the gas compartment (9) of the gas spring (4) and, on the other side, with the insert check valve (35) and the second gas storage (38), and
a gas interface (10′) connected to the second gas storage (38), wherein the gas interface (10′) is at least configured to insert gas from outside of the gas spring system (3) into the gas spring system (3).

14 more elements

Dependencies are inferred from the claim text.

Gas spring system for a height adjustable table, height adjustable table and method for operating the gas spring system

Life of this patent

Gas spring system for a height adjustable table, height adjustable table and method for operating the gas spring system

Life of this patent

Abstract

Claims17