Seat back mounting system

1. An apparatus comprising:

a frame;

a seat back; and

a mounting system securing the seat back to the frame, the mounting system comprising:

a mounting member including a base and an extension projecting from the base along an axis in absence of external forces to the extension, the extension having an end distant from the base, the base being connected to the seat, the end being resiliently linearly movable in directions substantially perpendicular to the axis 360° about the axis, wherein the end of the extension is arcuately movable about the axis and wherein the base includes a resiliently flexible cup portion and wherein the extension extends from a center of the cup portion.

2. The apparatus of claim 1 , wherein at least one of the base and the extension is resiliently flexible.

3. The apparatus of claim 1 , wherein at least one of the base and the extension is resiliently flexible by a value of 300-900 in-lb/rad, the torque (bending moment) per degree radian (angular deflection).

4. The apparatus of claim 1 , wherein the extension extends from a concave side of the cup portion.

5. The apparatus of claim 1 , wherein the mounting member includes a rim extending from and about the cup portion, the rim facing and abutting the seat back.

6. The apparatus of claim 1 , wherein the base and the extension are integrally formed as a single unitary body.

7. The apparatus of claim 1 , wherein the base is sandwiched between a first compliant member and a second compliant member.

8. The apparatus of claim 7 , wherein the seat back includes a cavity receiving the base, the first compliant member and the second compliant member, wherein the extension projects beyond the cavity.

9. The apparatus of claim 1 further comprising:

one or more feet configured to stationarily support the frame relative to a floor; and

foot pedals supported by the frame and configured receive force from a person's feet, the foot pedals receiving force having a component in a direction substantially parallel to the axis.

10. The apparatus of claim 1 , wherein the apparatus comprises a stationary recumbent bicycle.

11. The apparatus of claim 1 , wherein the mounting system further comprises at least four mounting members including the mounting member joining the seat back to the frame.

12. A mounting member comprising:

a base; and

an extension projecting from the base along an axis in absence of external forces to the extension, the extension having an end distant from the base, the base being connected to the seat back, the end being resiliently linearly movable in directions substantially perpendicular to the axis 360° about the axis, wherein the base includes a resiliently flexible cup portion and wherein the extension extends from a center of the cup portion.

13. The apparatus of claim 12 , wherein the end of the extension is arcuately movable about the axis.

14. The apparatus of claim 12 , wherein at least one of the base and the extension is resilient flexible by a value of 250-450 in-lb/rad, the torque (bending moment) per degree radian (angular deflection).

15. The apparatus of claim 12 , wherein the extension extends from a concave side of the cup portion.

16. The apparatus of claim 15 , wherein the base and the extension are integrally formed as a single unitary body from one or more polymers.

17. An apparatus comprising:

a frame;

a seat back; and

a mounting system securing the seat back to the frame, the mounting system comprising:

a mounting member including a resiliently flexible base connected to the seat back and having a resiliently flexible cup portion and a resiliently flexible extension extending from a center of the cup portion and connected to the frame.

18. The apparatus of claim 17 , wherein the base and the extension are integrally formed as a single unitary body from one or more polymers.