Claims
- 1. Apparatus for yieldably restraining the upper portion of a child seat mounted in a vehicle near a fixed body portion of the vehicle, comprising:
an extensible energy-absorbing device adapted to move to increase the effective length of the device upon application of a tensile stress in excess of a prescribed value to said device; a seat-engaging element operatively connected to the energy-absorbing device and adapted for attachment to the upper portion of the child seat and; a vehicle-engaging element operatively connected to the energy-absorbing device and adapted for attachment to the fixed body portion of the vehicle.
- 2. Apparatus according to claim 1, wherein the energy-absorbing device is configured to limit the increase of the effective length thereof.
- 3. Apparatus according to claim 1, wherein said energy-absorbing device comprises a metallic member that absorbs energy by deformation.
- 4. Apparatus according to claim 3, wherein the metallic member further comprises a groove with deformable projections.
- 5. Apparatus according to claim 4, wherein the energy-absorbing device further comprises a deforming member slidably connected to said metallic member and engageable with said deformable projections.
- 6. Apparatus according to claim 1, wherein the energy-absorbing device comprises a yieldable portion of a tether belt that elongates upon application of a tensile stress in excess of a prescribed value.
- 7. Apparatus according to claim 6, wherein said yieldable portion comprises at least one tear seam that permits elongation of the tether belt when the tear seam is torn by an applied tensile stress in excess of a prescribed value.
- 8. Apparatus according to claim 7, wherein said yieldable portion comprises two opposing folded sections of the tether belt, and said tear seam comprises stitching that separately holds said folded sections together.
- 9. Apparatus according to claim 6, wherein said yieldable portion comprises a greater number of weft yarns and an increased crimp as compared to a normal tether belt.
- 10. In a vehicle having a body, a vehicle seat mounted to the body, a fixed vehicle body portion located behind the seat, a child seat mounted on the vehicle seat, and a restraint interconnecting the upper portion of the child seat and the fixed vehicle body portion, the improvement wherein the restraint comprises an extensible energy-absorbing device comprising:
a movable portion configured to increase the effective length of the restraint upon application of a tensile stress in excess of a prescribed value to said device; said movable portions comprising a metallic member that absorbs energy by deformation; and a deforming member slidably connected to said metallic member.
- 11. Apparatus according to claim 10, wherein the metallic member comprises a groove with deformable projections.
- 12. In a vehicle having a body, a vehicle seat mounted to the body, a fixed vehicle body portion located behind the seat, a child seat mounted on the vehicle seat, and a restraint interconnecting the upper portion of the child seat and the fixed vehicle body portion, the improvement wherein the restraint comprises an extensible energy-absorbing tether belt comprising a yieldable portion that elongates upon application of a tensile stress in excess of a prescribed value, said yieldable portion comprising at least one tear seam that permits elongation of the tether belt when the tear seam is torn by an applied stress in excess of the prescribed value.
- 13. Apparatus according to claim 12, wherein said yieldable portion comprises two opposing folded sections of the tether belt, and said tear seam comprises stitching that separately holds said folded sections together.
- 14. In a vehicle having a body, a vehicle seat mounted to the body, a fixed vehicle body portion located behind the seat, a child seat mounted on the vehicle seat, and a restraint interconnecting the upper portion of the child seat and the fixed vehicle body portion, the improvement wherein the restraint comprises an extensible energy-absorbing tether belt that elongates upon application of a tensile stress in excess of a prescribed value, the tether belt having a greater number of weft yarns and an increased crimp as compared to a normal tether belt.
- 15. A restraint for a child seat mounted on a seat of a vehicle, the restraint interconnecting the upper portion of the child seat to a portion of the vehicle behind the seat, wherein the restraint comprises an extensible energy-absorbing device having a movable portion adapted to increase the effective length of the restraint upon application of a tensile stress in excess of a prescribed value to said device.
CROSS REFERENCE TO RELATED APPLICATIONS
[0001] This application claims priority to and the benefit of U.S. Provisional Application Serial No. 60/181,089, filed Feb. 8, 2000, the disclosure of which is hereby incorporated by reference herein in its entirety.
Provisional Applications (1)
|
Number |
Date |
Country |
|
60181089 |
Feb 2000 |
US |