Powered actuator for lumbar unit
AssigneeSchukra of North America, Ltd.
InventorsHoria Blendea, Jintao Liu, Yang Cao, Ed Dornan, Joseph Benson
Life of this patent
Estimating the term…
Abstract
A powered lumbar support device includes a resilient panel having a first flange and a second flange. The panel is biased in a forward direction for providing an arch in a seat back. A lumbar frame extends downwardly from a support element for slideably supporting the resilient panel. An extending member is affixed to the first flange and projects upwardly from the control module, which is retained in position by a compliant spring. The control module includes a drive mechanism for changing the arch in the basket by changing the distance between the first flange and the second flange by extending and retracting the extending member.
Claims26
A powered lumbar support device for a seat comprising:
- a resilient panel having a first flange and a second flange and being biased in a forward direction to provide an arch to a seat back;
- a control module being translatable relative to said flanges and having an extending member projecting therefrom being affixed to one of said flanges;
- and
- said control module including a drive mechanism capable of changing the distance between said first flange and said second flange by extending and retracting said extending member thereby changing the arch in said seat back resilient panel.
A powered lumbar support device for a seat comprising:
- a resilient panel having a first flange and a second flange and being biased in a forward direction to provide an arch to a seat back;
- a control module moveable relative to said flanges and having an extending member projecting therefrom being affixed to one of said flanges;
- said control module including a drive mechanism capable of changing the distance between said first flange and said second flange by extending and retracting said extending member thereby changing the arch in said seat back;
- and
- a compliant spring anchored to a seat and having a contraction force greater then an extending force of said drive mechanism.
A seat having a powered lumbar support device comprising:
- a seat;
- a back section of said seat having a ring defining a perimeter of said back section;
- a resilient panel disposed within said ring, said resilient panel having a first flange and a second flange and being biased in a forward direction to provide an arch in said back section;
- a support element attached to said ring and having guide rods extending downward therefrom that slideably supports said resilient panel;
- a control module being translatable relative to said flanges and having an extending member projecting therefrom being affixed to one of said flanges;
- and
- said control module including a drive mechanism capable of changing the distance between said first flange and said second flange by extending and retracting said extending member thereby changing said arch in said back section.
A seat having a powered lumbar support comprising:
- a seat;
- a back section of said seat having a ring defining the perimeter of said back section;
- a resilient panel disposed within said ring, said resilient panel having a first flange and a second flange and being biased in a forward direction to provide an arch in said back section;
- a support element attached to said ring and having guide rods extending downward therefrom that slideably supports said resilient panel;
- a control module moveable relative to said flanges and having an extending member projecting therefrom being affixed to one of said flanges;
- said control module including a drive mechanism capable of changing the distance between said first flange and said second by extending and retracting said extending member thereby changing said arch in said back section;
- and
- a compliant spring anchored to said seat and having a contraction force greater than an extending force of said drive mechanism.
Dependencies are inferred from the claim text.