Patent · US Expired

Lumbar support adjustment mechanism

US6189972A · kind A · utility

83Cited by

38References

6Claims

0Family size

Assignee

Teknion Furniture Systems Limited · CA

Inventors

Zooey C. Chu · Grand Rapids, US
Harald Wurl · Kleinsendelbach, DE
Hermann Bock · Pyrbaum, DE

Key dates

Filing date	Jun 5, 1998
Grant date	Feb 20, 2001
Priority date	—
Expiry date	Jun 5, 2018

Classification

Technology area (CPC A)Human Necessities
CPC primaryA47C7/465
WIPO fieldFurniture, games
WIPO sectorOther fields

Abstract

A chair back comprises a rear surface, a front surface spaced from the rear surface and a side extending between the front and rear surfaces; a lumbar support member positioned between the front and rear surfaces and mounted for vertical movement with respect to the chair back and for forward movement with respect to the front surface; a first control member positioned on the rear surface of the chair back for adjusting the forward movement of the lumbar support member; and, a second control member positioned adjacent one of the sides of the chair back for adjusting the vertical height of the lumbar support member.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.