Deformable seat bracket

1. A seat bracket comprising:

a first portion configured to be attached to a structural frame of a vehicle by a first fastener passing there through;

a second portion configured to be attached to a seat installed in the vehicle by a second fastener passing there through; and

a third portion attaching the first portion to the second portion,

wherein the third portion comprises a U-shape, and

wherein the first portion is configured to receive the second fastener there through.

2. The seat bracket of claim 1 , wherein the second portion comprises a hole for the second fastener to pass through, and the first portion comprises a hole for the second fastener to pass through.

3. The seat bracket of claim 2 , wherein the first portion defines a fracture propagation region disposed proximate the hole for the second fastener.

4. The seat bracket of claim 2 , wherein the bracket is configured to:

preclude relative motion between the first portion and the second portion in response to a force exerted on the seat along an axis axially aligned with a first axis of the first fastener, perpendicular to a hole in the first portion for the first fastener;

preclude relative motion between the first portion and the second portion in response to a force exerted on the seat along an axis axially aligned with a second axis of the second fastener, perpendicular to the holes for the second fastener;

preclude relative motion between the first portion and the second portion in response to a force exerted on the seat in a first direction along a third axis perpendicular to the first axis and the second axis; and

allow relative motion between the first portion and the second portion in response to a force exerted on the seat above a predetermined amount in a second direction, opposite the first direction, along the third axis.

5. The seat bracket of claim 2 , further comprising a collar received through at least one of the hole of the second portion for the second fastener and the hole of the first portion for the second fastener.

6. The seat bracket of claim 1 , wherein the second portion is configured to move relative to the first portion toward the third portion in response to a force above a predefined amount.

7. The seat bracket of claim 6 , wherein the second fastener is configured to tear through the second portion in response to the second portion moving relative to the first portion toward the third portion.

8. The seat bracket of claim 1 , wherein the bracket is configured to allow relative motion between the first portion and the second portion in response to a force exerted on the seat above a predetermined amount in a direction along an axis passing by the first portion and the second portion and through the center of the U-shape of the third portion distal from the first and second portions.

9. The seat bracket of claim 1 , wherein the first portion, second portion, and third portion are formed from a single piece of metal.

10. The seat bracket of claim 1 , wherein the first portion comprises a structural member configured to be attached to the structural frame and a second fastener receiving portion configured to receive the second fastener there through, wherein the structural member and the second fastener portion are attached to one another and bent orthogonally.

11. The seat bracket of claim 10 , wherein the first portion comprises a support portion connecting the structural member and the second fastener receiving portion.

12. A seat bracket comprising:

a first portion configured to be attached to a structural frame of a vehicle by a first fastener passing there through;

a second portion configured to be attached to a seat installed in the vehicle by a second fastener passing there through; and

a third portion attaching the first portion and the second portion, wherein the third portion comprises a U-shape;

wherein the second portion is configured to move, relative to the first portion, in response to a force exerted on the seat above a predefined amount in a first direction along an axis that is perpendicular to a major axis of the first fastener and perpendicular to a major axis of the second fastener.

13. The seat bracket of claim 12 , wherein the second portion is configured to remain substantially stationary, relative to the first portion, in response to a force exerted on the seat above the predefined amount in a second direction, opposite the first direction.

14. The seat bracket of claim 13 , wherein the first portion is configured to be attached to the seat by the second fastener passing through the second portion and the first portion.

15. The seat bracket of claim 14 , wherein the second fastener is configured to tear through the first portion in response to the second portion moving relative to the first portion in response to the force exerted on the seat above a predefined amount in the first direction.

16. The seat bracket of claim 15 , further comprising a fracture propagation region in the first portion disposed proximate a hole through the first portion into which the second fastener is received.

17. The seat bracket of claim 16 , wherein the first portion is configured to tear beginning at the fracture propagation region.

18. The seat bracket of claim 12 , wherein the first portion is configured to receive the first fastener through a first hole along a first axis, wherein the second portion is configured to receive the second fastener through a second hole along a second axis, and wherein the first axis and the second axis are perpendicular.