Seat

• US 6,554,360 B1
• Filed: 05/01/2001
• Issued: 04/29/2003
• Est. Priority Date: 10/14/1998
• Status: Expired due to Term

• Current Assignee: Grammer AG (Ningbo Jifeng Auto Parts Co.,Ltd.)
• Original Assignee: Grammer AG (Ningbo Jifeng Auto Parts Co.,Ltd.)
• Inventors: Wilke, Hans-Joachim, Meiller, Hermann
• Primary Examiner(s): Nelson, Jr., Milton
• Application Number:
  US09/807,153
• Time in Patent Office: 728 Days
• Field of Search: 297/284.1, 297/284.4, 297/342, 297/341, 297/318, 297/317, 297/320
• US Class Current: 297/342
• CPC Class Codes: B60N 2/0284 Adjustable seat-cushion length B60N2/0224 takes precedence
• CPC Class Codes: B60N 2/0292 Multiple configuration seats, e.g. for spacious vehicles or mini-buses
• CPC Class Codes: B60N 2/2222 the back-rest having two or more parts
• CPC Class Codes: B60N 2/64 Back-rests or cushions B60N2/2222 takes precedence
• CPC Class Codes: B60N 2/643 shape of the back-rests B60N2/66 takes precedence
• CPC Class Codes: B60N 2/646 shape of the cushion
• CPC Class Codes: B60N 2/68 Seat frames

Abstract

Described is a seat (10) comprising a seat squab (12) and a backrest (14) which is displaceable in respect of its inclination. In order to achieve a load relief for the intervertebral disc of a user of the seat and thus optimum seating comfort, the seat (10) provides that the backrest (14) is displaceable between convex lordosis positions and concave kyphosis positions in dependence on the respective backrest inclination.

Claims

1. A seat comprising a displaceable seat squab (12) and a backrest which is displaceable in respect of its inclination between a convex lordosis position and a concave kyphosis position in dependence on the seat squab setting and which is set in a steep inclined position in a convexly forwardly curved configuration into an associated lordosis position and in a shallow inclined position in a concavely rearwardly curved configuration into an kyphosis position, characterized in that the seat squab (12) is displaceable in the longitudinal direction of the seat and that the backrest (14) is displaceable in dependence on the seat squab longitudinal setting in respect of its inclination, wherein in a set-back position of the seat squab (12) the backrest (14) is set steeply inclinedly into an associated lordosis position and in a set-forward position of the seat squab (12) the backrest (14) is set in a shallowly inclined position into a corresponding kyphosis position.

2. A seat as set forth in claim 1 characterized in that the backrest (14) is displaceable statically between lordosis and kyphosis positions.

3. A seat as set forth in claim 1 characterized in that the backrest (14) is displaceable dynamically between lordosis and kyphosis positions.