Base For A Person's Seat

• US 20120126592A1
• Filed: 11/15/2011
• Published: 05/24/2012
• Est. Priority Date: 11/16/2010
• Status: Active Grant

• Current Assignee: Grammer AG (Ningbo Jifeng Auto Parts Co.,Ltd.)
• Original Assignee: Grammer AG (Ningbo Jifeng Auto Parts Co.,Ltd.)
• Inventors: KAESSNER, Dirk, VOGL, Andreas, BEIER, Wolfgang, WEIDINGER, Alfred
• Granted Patent: US 8,882,195 B2
• Time in Patent Office: Days
• US Class Current: 297/216.1
• CPC Class Codes: B60N 2/4214 longitudinal
• CPC Class Codes: B60N 2/42709 involving residual deformation or fracture of the structure
• CPC Class Codes: B60N 2/42736 of the whole seat

Abstract

A seat base having a first pair of U-shaped tubular elements capable of being deformed, the upper end portion is arranged in a torsionally rigid manner in the vertical direction on a lower surface of the seat part and the lower end portion is arranged in a torsionally rigid manner in the vertical direction on an upper surface of a region of the vehicle floor, and a second pair of S-shaped tubular elements capable of being deformed, the upper end portion is arranged in a torsionally rigid manner in the vertical direction on the lower surface of the seat part and the lower end portion is arranged in a torsionally rigid manner in the vertical direction on the upper surface of the region of the vehicle floor, wherein the first pair of elements is arranged substantially in front of the second pair of elements in the direction of the seat.

Claims

1. A seat base of a person'"'"'s seat with at least one backrest and one seat part to permit a controlled movement of the person'"'"'s seat for the dissipation of kinetic energy and for the protection of the person sitting on the person'"'"'s seat in the event of an accident taking place substantially in the direction of the seat, wherein the seat base comprises at least one first pair of U-shaped tubular elements capable of being deformed, the upper end portion, with respect to the height direction of the seat, is arranged in a torsionally rigid manner substantially on a lower surface of the seat part and the lower end portion, with regard to the height direction of the seat, is arranged in a torsionally rigid manner substantially on an upper surface of a region of the vehicle floor on which the person'"'"'s seat is arranged, and at least one second pair of S-shaped tubular elements capable of being deformed, the upper end portion, with respect to the height direction of the seat, is arranged in a torsionally rigid manner substantially on the lower surface of the seat part and the lower end portion, with regard to the height direction of the seat, is arranged in a torsionally rigid manner substantially on the upper surface of the region of the vehicle floor, and wherein the first pair of elements is arranged substantially in front of the second pair of elements in the direction of the seat.

2. The seat base according to claim 1, wherein the individual elements of the first pair and the second pair of elements are arranged at a distance from one another in each case in the width direction of the seat.

3. The seat base according to claim 1, wherein the seat base has at least one safety element extending substantially at a right angle between the seat part and the surface of the vehicle floor in order to absorb kinetic energy.

4. The seat base according to claim 3, wherein the safety element is arranged behind the second pair of elements in the direction of the seat.

5. The seat base according to claim 3, wherein the safety element is capable of being deformed in a plastic manner in such a way that at least one region of the safety element is capable of being stretched in the longitudinal direction of the safety element.

6. The seat base according to claim 1, wherein the lower end portion of the S-shaped element in the height direction of the seat extends substantially forwards in the direction of the seat and the upper end portion of the S-shaped element in the height direction of the seat extends substantially towards the rear in the direction of the seat.

7. The seat base according to claim 1, wherein the two end portions of the respective U-shaped elements extend substantially towards the rear in the direction of the seat.

8. The seat base according to claim 1, wherein the U-shaped elements are capable of being deformed in a plastic manner in each case in such a way that a distance between the respective upper end portion and lower end portion is essentially capable of being reduced and a length of the respective lower end portion which is situated substantially on the upper surface of the floor region of the vehicle is capable of being extended, so that a lower region of a bulging portion of the U-shaped elements is capable of being rolled on the upper surface of the floor region of the vehicle.

9. The seat base according to claim 1, wherein the S-shaped elements are capable of being deformed in a plastic manner in each case in such a way that a distance between the respective upper end portion and lower end portion is essentially capable of being widened and an upper S-curve is preferably capable of being pulled up in each case.

10. The seat base according to claim 1, wherein the elements of the first pair and/or the second pair of elements are tubes having a square cross-section.

11. The seat base according to claim 1, wherein the U-shaped element and the S-shaped element are produced from a continuous metal profile.

12. The seat base according to claim 3, wherein the safety element is an element capable of being deformed in a resilient manner.

13. The seat base according to claim 4, wherein the safety element is capable of being deformed in a plastic manner in such a way that at least one region of the safety element is capable of being stretched in the longitudinal direction of the safety element.

14. The seat base according to claim 5, wherein the safety element is an element capable of being deformed in a resilient manner.