Device for lumbar support

US6575530B1 · kind B1 · utility

Assignee

• SEDUS STOLL AG · DE

Inventors

• Harry Fischer · Biberach an der Riß, DE
• Klaus-Peter Grasse · Waldshut-Tiengen, DE
• Manfred Schlegel · Küssaberg-Reckingen, DE
• Mathias Seiler · Soest, DE

Key dates

• Filing date: May 3, 2002
• Grant date: Jun 10, 2003
• Expiry date: May 3, 2022

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A47C7/462
• WIPO field: Furniture, games
• WIPO sector: Other fields

Abstract

A device for lumbar support for an office chair having a seatback including a seatback frame and a membrane stretched over the seatback frame. The device can be arranged behind the membrane and can be housed in the seatback frame to provide vertical and horizontal adjustment independent of the membrane. Preferably, the device includes a central part having two comparably rigid carrier elements connected to each other via an elastic element arranged therebetween, the rigid carrier elements each including a guide track that can be arranged in the seatback frame to provide the vertical adjustment. A front part includes a cushion attached to an upholstery plate, the upholstery plate facing the membrane. A rear part includes a plastic plate. The cushion and the plastic plate are connected via a clip connection, and the clip connection is guided in slots of the carrier elements.