OFFICE CHAIR WITH AN ADAPTABLE LUMBAR SUPPORT

摘要

An office chair (1) comprising a seat (2), a backrest (3) including a lumbar support (4), an actuator device (8) arranged to enable adjustment of the lumbar support (4) between an inactive position in which it follows the general shape of the backrest (3), and a fully active position in which it is adjusted outwards forwardly from the backrest (3) in order to support the lumbar back portion of a person seated on the seat (2). The lumbar support (4) comprises of a first part (200) with a first end (201) and a second end (202) and a second part (300) with a first end (301) and a second end (302), said first ends (201, 301) of said first and second parts (200, 300) are connected to each other via a pivoting point (400) and said second ends (202, 302) are pivotally coupled to the backrest (3), wherein at least one of said second ends (202, 302) of said parts (200, 300) is slidably arranged along the backrest (3) wherein the actuator device (8) comprises means for pushing and/or pulling said slidable ends (202, 302) in response to actuation.

主权项

1. An office chair comprising a seat, a backrest including a lumbar support, an actuator device arranged to enable adjustment of the lumbar support between an inactive position in which it follows the general shape of the backrest, and a fully active position in which it is adjusted outwards forwardly from the backrest in order to support the lumbar back portion of a person seated on the seat, wherein the lumbar support (4) comprises of a first part with a first end and a second end and a second part with a first end and a second end, said first ends of said first and second parts are connected to each other via a pivoting point and said second ends are pivotally coupled to the backrest, wherein at least one of said second ends of said parts is slidably arranged along the backrest wherein the actuator device comprises means for pushing and/or pulling said slidable ends in response to actuation, so as to cause a sliding movement of said slidable ends, wherein the seat is tiltable between an initial position and a slightly forwardly tilted position, whereby the actuator device is adapted to cause said pushing and/or pulling on said at least one end in response to tilting of the seat.