Chair having a synchronously adjustable seat and backrest

US6692075B2 · kind B2 · utility

Assignee

• Armin Sander · DE

Inventors

• Armin Sander · Ergolding, DE
• Martin Potrykus · Bamberg, DE
• Peter Horn · Ergolding, DE

Key dates

• Filing date: Sep 25, 2001
• Grant date: Feb 17, 2004
• Expiry date: Sep 25, 2021

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A47C1/03294
• WIPO field: Furniture, games
• WIPO sector: Other fields

Abstract

A chair, in particular an office chair, has a backrest that is articulated on a seat carrier via a backrest carrier, and has a seat surface that can be moved synchronously with the backrest. The front region of the seat surface is connected to the seat carrier via a sliding guide. The rear region of the seat surface is connected to the seat carrier via a seat link. A top point of rotation connects the seat link to the seat surface. A bottom point of rotation connects the seat link to the seat carrier. The distance between the top point of rotation and the backrest is smaller than the distance between the bottom point of rotation and the backrest. A sliding guide for the seat surface is provided in the backrest carrier for synchronizing the movement of the backrest and the movement of the seat surface.