Flexible elastic support
Lordosis-support backrest for a vehicle seat
Transmission device for cable control of lumbar support mechanism
Mechanism for providing adjustable lumbar support in a seat
Adjustable cushion assembly for a chair
ApplicationNo. 337484 filed on 11/08/1994
US Classes:297/230.14, Including a means to adjust supplemental back relative to a seat back24/575.1, Including eyelet (e.g., shoes)297/284.5, Portable with seat attacher297/284.7Rectilinear vertical adjustment
ExaminersPrimary: Chen, Jose V.
Assistant: Allred, David E.
Attorney, Agent or Firm
Foreign Patent References
International ClassA47C 007/46
AbstractAn adjustable attachment has been developed which can be used in combination with an auxiliary backrest to suspend the backrest from a fixed backrest normally found on a chair or wheelchair. The support structure includes an elongate receiver and a hanger. The receiver extends longitudinally and is normally fixed in a vertical position to the auxiliary backrest and defines a plurality of openings spaced apart along the length of the receiver to form a row of openings. The hanger is shaped to fit in any one of the receiver openings and the receiver has an outer part so that in use the hanger can be engaged through a selected one of the openings. The hanger then extends along the length of the receiver and the outer part can be engaged downwardly over an upper edge of a fixed backrest or other support. The structure is also disclosed in combination with an adjustable auxiliary backrest having a resiliently deformable vertical spine and ribs having forwardly and outwardly extending end portions to give lateral support to the user.
Field of SearchProviding support for lower back (i.e., lumbar) region
Portable with seat attacher
Rectilinear vertical adjustment
Including a projected side member
Including a rigid panel
Back and supplemental back together form occupant back-engaging surface
Including a means to adjust supplemental back relative to a seat back