Occupant support system
View Patent ↗Human support systems for one or more of the safety, convenience, comfort of the user.
1. A child safety seat with a rigid support shell with a first support surface and a support base with a second support surface, in a vehicle, adapted to reorient and ensconce and thereby protect an occupant positioned in the support shell upon inertial loading by the occupant on the child safety seat resulting from impact to the vehicle on the child safety seat such that a reaction force of the rigid support shell on the occupant is distributed over one or both of: a larger surface area of the occupant; and a larger time period, thereby reducing injury to the occupant, wherein said rigid support shell re-orients about an axis of rotation and said axis of rotation is movable, and said reorientation of said rigid support shell is along a path that depends on a position, an intensity and a direction of the inertial loading and enabled with connection elements comprising:
a first deformable shock-absorbing connection element—with spaced apart first and second ends along a length, and wherein a distortion of said first deformable shock absorbing element in reaction to the inertial loading results in relocation of the first end orthogonal to the second end wherein the first end is attached to the first support surface and the second end is attached to the second support surface; and
one of:
a second deformable shock-absorbing connection element with spaced apart first and second ends along a length, wherein said second deformable shock-absorbing connection element has a first end attached to the first support surface and a second end attached to the second support surface; and
a pivotal connection which provides both translation and rotational degrees of freedom to the rigid support shell, wherein the pivotal connection has a first end attached to the first support surface and a second end attached to the second support surface, and wherein said pivotal connection is located proximate a bottom of the child safety seat and wherein the axis of said pivotal connection is disposed proximate an end of a bottom of the seat shell opposite an end of the bottom that is proximate a back of the child safety seat; at an end of the child safety seat opposite an end of the support base that is proximate a back of the child safety seat;
wherein the first ends of the connection elements are enabled to move in a plurality of paths with a corresponding plurality of loading distributions on said first ends and reorienting the seat shell to advance into a cavity defined by the first and second support surfaces on said support shell and support base respectively, during an impact in a direction orthogonal to the pivot axis.
2. A child safety seat as in claim 1 further comprising a bunge sling comprising one or both of flexing and deforming elements.
3. A child safety seat as in claim 1 , comprising a bunge sling that is enabled to extend upon front impact loading, wherein attachment of the bunge sling to one of the support shell and support base is constrained and attachment to the other of the support shell and support base is with a sliding arrangement that allows lateral movement or disengagement of the attachment during lateral impact but maintains the position of the attachment and provides support during front impact.
4. A child safety seat as in claim 1 , wherein said deformable shock-absorbing connection element is pivotally attached at one of said ends to one of the support shell and the support base, and wherein the deformation of the deformable shock-absorbing connection element offers shock absorption to the occupant.
5. A child safety seat as in claim 4 , wherein the pivotal attachment on the second end of the deformable shock-absorbing connection element comprises an axle inserted within an aperture in the deformable shock-absorbing connection element.
6. A child safety seat as in claim 5 , further comprising a rigid guide surface attached to the support shell, wherein said guide surface does not contact the axle under low inertial loading conditions, but guides the axle upon severe loadings and resulting severe distortion of the deformable shock-absorbing connection element.
7. A child safety seat as in claim 6 , comprising a pivotal attachment comprising an axle on a second end of each of a plurality of said deformable shock-absorbing connection elements, and further comprising a plurality of said guides attached to the support shell to guide each of said axles, wherein a severe inertial loading reorients the support shell by one or both of lowering a rear part of the support shell and raising a front part of the support shell.
8. A child safety seat as in claim 1 , wherein said at least one deformable shock-absorbing connection element comprises one or both of: foams; and hexcell core materials.
9. A child safety seat as in claim 1 , wherein at least one of the attachments on the first end and the second end of the one or more deformable shock-absorbing connection elements is pivotal.
10. A child safety seat as in claim 1 , wherein one of said attachments on the first end and second end of said one or more deformable shock-absorbing connection elements is a slidable attachment and the other attachment is fixed.
11. A child safety seat as in claim 1 , comprising a plurality of deformable shock-absorbing connection elements, wherein said deformable shock-absorbing connection elements have connections there-between.
12. A child safety seat as in claim 1 comprising a plurality of deformable shock-absorbing connection elements wherein deformation of the deformable material properties of the deformable shock-absorbing elements.
13. A child safety seat as in claim 1 comprising a plurality of deformable shock-absorbing connection elements, wherein deformation of the deformable shock-absorbing connection elements is enabled by cross sections perpendicular to longtitudinal axes of the deformable shock-absorbing connection elements having different cross section areas.
14. A child safety seat in a vehicle, as in claim 1 , further comprising an end-stop for one of said at least one deformable shock-absorbing connection element.
15. A child safety seat as in claim 1 , comprising a plurality of deformable shock-absorbing connection elements, wherein said deformable shock-absorbing connection elements have different material properties and have connections there-between.
16. A child safety seat as in claim 1 , comprising at least two deformable shock-absorbing connection elements wherein said deformable shock-absorbing connection elements are adjoining and comprise different material properties.